CN109788945A - Medical leak inspection device - Google Patents

Abstract

Medical leak inspection device involved in a mode of the invention has: main part, has the visual confirmation window portion of cylindrical portion and the closing cylindrical portion that intercommunicating pore is formed in peripheral wall；Utricule component, the outer peripheral surface along the cylindrical portion are arranged, and towards the lateral expansion of the cylindrical portion；Utricule piping, for carrying out injection and discharge to the fluid between the utricule component and the cylindrical portion；And tubular body, it is formed with the fluid injection inner cavity for the space fluid injection to the front of visual confirmation window portion and the exhaust inner cavity for the aperture vents from the front of visual confirmation window portion.

Description

Medical leak inspection device

Technical field

The present invention relates to a kind of medical leak inspection devices.

This application claims based on September in 2016 28 days in Japanese publication Japanese patent application 2016-189472,2016 On September 28, Japanese patent applications 2016-189473 in Japanese publication, September 19th Japan in Japanese publication in 2017 Patent application No. 2017-179576 and on September 19th, 2017 Japanese patent application 2017-179577 in Japanese publication excellent It first weighs, and its content is applied at this.

Background technique

The whether normal medical leak inspection device of function for checking artery valve is recorded in patent document 1,2. Documented medical leak inspection device has cylindrical portion, closes the front end of cylindrical portion or the view of rear end in these documents The utricule component feeling confirmation window portion and being arranged along the outer peripheral surface of cylindrical portion.

Also, the medical leak inspection device of patent document 1 has visual confirmation window portion in the rear end side of cylindrical portion, And its front becomes recess portion.Therefore, visual confirmation is configured to close from user with window portion, to can obtain in inspection good The good visual field.

When being checked, firstly, in the state that medical leak inspection device to be configured to the downstream side of artery valve Fluid is injected into utricule component so that utricule component expands, thus to the fixed medical leak inspection device of artery.Then, one Side carries out the exhaust in the space between medical leak inspection device and artery valve, injects liquid to the space on one side, thus Liquid is filled in the space.Then, the hydraulic or liquid measure in the space is monitored, or is visually observed and is moved with window portion via visual confirmation Thus mixer amplification by variable reactance checks the function of artery valve.

Existing technical literature

Patent document

Patent document 1: No. 3130152 bulletin of utility model is logged in

Patent document 2: Japanese Unexamined Patent Publication 2010-240386 bulletin

Summary of the invention

Problems to be solved by the invention

In patent document 1,2 in disclosed medical leak inspection device, although having through utricule component to artery It is fixed, and to the mechanism of the space injection liquid between medical leak inspection device and artery valve, but not to view Feel that the front of confirmation window portion has the mechanism of space injection liquid of recess portion.Accordingly, there exist the views from visual confirmation window portion The case where feeling confirmatory decline.

The present invention is completed in view of the above subject, and a kind of can ensure via the good of visual confirmation window portion is provided The medical leak inspection device in the good visual field.

For solving the means of technical task

First scheme according to the present invention provides a kind of medical leak inspection device, has: main part, has Peripheral wall is formed with the cylindrical portion of intercommunicating pore and the visual confirmation window portion of the closing cylindrical portion；Utricule component, along the tubular The outer peripheral surface in portion is arranged, and towards the lateral expansion of the cylindrical portion；Utricule piping, for the utricule component with it is described The injection and discharge of fluid between cylindrical portion；And tubular body, it is formed with for the front of the visual confirmation window portion The fluid injection inner cavity of space fluid injection and for the aperture vents from the front of the visual confirmation window portion exhaust use in Chamber.

Alternative plan according to the present invention provides a kind of medical leak inspection device, has: main part, has cylinder The visual confirmation window portion of shape portion and the closing cylindrical portion, and existed by the cylindrical portion and the visual confirmation window portion Front is formed with recess portion；Utricule component, the outer peripheral surface along the cylindrical portion are arranged, and by importing between the cylindrical portion Fluid and towards the lateral expansion of the cylindrical portion；And tubular body, it is formed with for the front of the visual confirmation window portion Space fluid injection fluid injection inner cavity and for the aperture vents from the front of the visual confirmation window portion exhaust use Inner cavity.

The effect of invention

Medical leak inspection device according to the present invention, by for carrying out the sky to the front of visual confirmation window portion Between fluid injection fluid injection inner cavity, it can be ensured that via the good visual field of visual confirmation window portion.

Detailed description of the invention

Fig. 1 is the overall diagram of medical leak inspection device involved in the 1st embodiment.

Fig. 2 is the main view from the direction arrow A1 of Fig. 1.

Fig. 3 is the regarding sectional view of the B1-B1 line along Fig. 2.

Fig. 4 is the regarding sectional view of the C1-C1 line along Fig. 2.

Fig. 5 is the regarding sectional view of the D1-D1 line along Fig. 2.

Fig. 6 is the cross-sectional view for indicating the state of utricule component expansion of the medical leak inspection device of Fig. 5.

Fig. 7 is the cross-sectional view for illustrating the use example of medical leak inspection device involved in the 1st embodiment.

Fig. 8 is the cross-sectional view of medical leak inspection device involved in the 2nd embodiment.

Fig. 9 is the cross-sectional view of medical leak inspection device involved in the 3rd embodiment.

Figure 10 is the overall diagram of medical leak inspection device involved in the 4th embodiment.

Figure 11 is the edge figure about the medical leak inspection device for having fogging suppression portion involved in the 5th embodiment The regarding sectional view of 2 C1-C1 line.

Figure 12 is the edge figure about the medical leak inspection device for having fogging suppression portion involved in the 6th embodiment The regarding sectional view of 2 C1-C1 line.

Figure 13 is the overall diagram of medical leak inspection device involved in the 7th embodiment.

Figure 14 is the main view from the direction arrow A2 of Figure 13.

Figure 15 is the regarding sectional view of the B2-B2 line along Figure 14.

Figure 16 is the regarding sectional view of the C2-C2 line along Figure 14.

Figure 17 is the regarding sectional view of the D2-D2 line along Figure 14.

Figure 18 is the cross-sectional view for indicating the state of utricule component expansion of the medical leak inspection device of Figure 17.

Figure 19 is the cross-sectional view for illustrating the use example of medical leak inspection device involved in the 7th embodiment.

Figure 20 is the edge figure about the medical leak inspection device for having fogging suppression portion involved in the 8th embodiment The regarding sectional view of 14 C2-C2 line.

Figure 21 is the edge figure about the medical leak inspection device for having fogging suppression portion involved in the 9th embodiment The regarding sectional view of 14 C2-C2 line.

Specific embodiment

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.In addition, in all attached drawings, to identical composition Important document marks identical symbol, and suitably omits repeated explanation.

In this specification, the side close with the operator side of medical leak inspection device is known as cardinal extremity (rear end), The side that will be far from the operator is known as top (front end) to be illustrated.

(the 1st embodiment)

Fig. 1 is the overall diagram of medical leak inspection device involved in the 1st embodiment.

Fig. 2 is the main view from the direction arrow A1 of Fig. 1.

Fig. 3 is the regarding sectional view of the B1-B1 line along Fig. 2.

Fig. 4 is the regarding sectional view of the C1-C1 line along Fig. 2.

Fig. 5 is the regarding sectional view of the D1-D1 line along Fig. 2.

Fig. 6 is the cross-sectional view for indicating the state of utricule component expansion of the medical leak inspection device of Fig. 5.

Fig. 7 is the cross-sectional view for illustrating the use example of medical leak inspection device involved in the 1st embodiment.

Medical leak inspection device 101 involved in present embodiment has: main part 1013, has and is formed in peripheral wall There is the cylindrical portion 1011 of intercommunicating pore 1111 and closes the visual confirmation window portion 1012 of the cylindrical portion 1011；Utricule component 1014； Tubular body 1023 is formed with fluid injection inner cavity 1015 and exhaust inner cavity 1016；And utricule piping 1022.

Utricule component 1014 is the setting of outer peripheral surface 1017 along cylindrical portion 1011 and towards the lateral expansion of cylindrical portion 1011 Component.

Fluid injection is for carrying out the cardiac muscle guarantor to the space 1018 in the front of visual confirmation window portion 1012 with inner cavity 1015 Protect the inner cavity of the fluid injections of fluids such as liquid.In the present embodiment, the myocardium protecting liquid for being flowed into space 1018 prevents from making heart Muscle caused ischemic when stopping, and about 4 DEG C of low temperature.Heart becomes low temperature due to myocardium protecting liquid, thereby inhibits it Metabolism.

Exhaust is for carrying out from the exhaust in the space 1018 in the front of visual confirmation window portion 1012 with inner cavity 1016 Inner cavity.Fluid injection piping 1151 is continuously provided with the rear end side of inner cavity 1015 in fluid injection.In the exhaust rear end of inner cavity 1016 Side is continuously provided with exhaust piping 1161.Utricule piping 1022 is between utricule component 1014 and cylindrical portion 1011 Injection fluid or the hose-like components discharged it.The end of the front side of utricule component 1014 becomes the front side folding rearward to turn back Portion 1027 is gone back to, front side folded-back part 1027 is fixed on the outer peripheral surface other than the forming part of intercommunicating pore 1111 of cylindrical portion 1011 1017.The end of the rear side of utricule component 1014 becomes the rear side folded-back part 1028 turned back forwards, and rear side folded-back part 1028 is solid Due to the outer peripheral surface 1017 other than the forming part of intercommunicating pore 1111 of cylindrical portion 1011.

As shown in Fig. 2~Fig. 5, the cylindrical portion 1011 of main part 1013 is cylindrical shape, and visual confirmation is closed with window portion 1012 The rear end of cylindrical portion 1011.Visual confirmation window portion 1012 be plate, and its plate face relative to cylindrical portion 1011 axle center just It hands over.And concave shape is formed in the front of main part 1013 with window portion 1012 by cylindrical portion 1011 and visual confirmation.

If above-mentioned low temperature myocardium protecting liquid is flowed into the position of the concave shape via fluid injection inner cavity 1015, vision is true The vapor condensation in the air with the rear of window portion 1012 is recognized, to hold on the surface of visual confirmation 1012 rear side of window portion It is also easy to produce moisture condensation.When there is moisture condensation, cause to reduce by the visual confirmation of the heart of visual confirmation window portion 1012.

In order to solve this problem, the visual confirmation window portion 1012 involved in present embodiment is containing inhibition by condensing Caused by the filler 1041 (with reference to Fig. 4) that hazes.

Filler 1041 is with the contour thermal insulation of base material, that is, polycarbonate than visual confirmation window portion 1012 SiO₂(silica) etc., and be kneaded and be integrally formed with window portion 1012 with visual confirmation.In this way, by visual confirmation window Being kneaded in portion 1012 has the filler 1041 with thermal insulation, can prevent from being flowed into from fluid injection inner cavity 1015 and is formed in tubular The movement of heat of the myocardium protecting liquid and visual confirmation of the recess portion of the tip side in portion 1011 between window portion 1012.Therefore, can It prevents from generating moisture condensation on the surface of the rear side of visual confirmation window portion 1012.

For example, having in visual confirmation in window portion 1012, can be set to the layer of polycarbonate and be kneaded in polycarbonate This double-layer structure of the layer of filler 1041.In this case, if comparing the layer of polycarbonate, the layer for having filler 1041 will be kneaded It is disposed in rear side, then is suitble to inhibit the generation of moisture condensation.

In addition, in the present invention, visual confirmation window portion 1012 can not be the rear end of closing cylindrical portion 1011 but Close the structure of axial midway portion.In this way, concave shape can also be formed in the front of main part 1013.

Its entirety of main part 1013 comprising cylindrical portion 1011 and visual confirmation window portion 1012 is by one bodily form of material At.Main part 1013 is by hard such as polycarbonate and transparent resin material is constituted.

Length (length in the front-back direction in Fig. 3~Fig. 5) in the axial direction of cylindrical portion 1011 is preferably shorter than cylindrical portion 1011 diameter.It, can be so that visual confirmation window portion 1012 be (such as big dynamic closer to observation object position by so setting Mixer amplification by variable reactance etc.) mode use medical leak inspection device 101, therefore can be improved observation object position visual confirmation.

The intercommunicating pore 1111 of peripheral wall is formed through in cylindrical portion 1011.In the inside of cylindrical portion 1011, in intercommunicating pore Utricule piping 1022 is connected on 1111.It is not straight with piping 1022 by the utricule for being set as supplying fluid to utricule component 1014 The mode being inserted between utricule component 1014 and the outer peripheral surface 1017 of cylindrical portion 1011 is connect, utricule can be prevented to be piped 1022 The form of the fixation of utricule component 1014 is influenced, so as to prevent utricule component 1014 from deviation occur in easy dilatancy.

Utricule component 1014 along cylindrical portion 1011 entire outer peripheral surface 1017 and be arranged, and by with cylindrical portion 1011 it Between import fluid and towards 1011 lateral expansion of cylindrical portion.In the following description, the part for utricule component 1014 will be used for expanding Referred to as bulge 1019.The utricule component 1014 of present embodiment is turned back by bulge 1019, front side folded-back part 1027 and rear side Portion 1028 is constituted.

Utricule component 1014 is the barrel shape formed by the excellent material of the retractilities such as silicon rubber.1014 exterior of utricule component Around the outer peripheral surface 1017 of cylindrical portion 1011, and the top end part (front end) and base end part (rear end) are individually fixed in cylinder Shape portion 1011.The method that cylindrical portion 1011 is fixed in the top end part of utricule component 1014 and base end part is not particularly limited, but Such as it can be set as being adhesively fixed.

As shown in Fig. 3~Fig. 5, in this case, the front end of utricule component 1014, which becomes, rearward rolls over The front side folded-back part 1027 returned, and it is fixed on the outer peripheral surface 1017 of cylindrical portion 1011.

In front side folded-back part 1027, the front position at the fixed position of outer peripheral surface 1017 relative to cylindrical portion 1011 with The front position of outer peripheral surface 1017 is aligned.Thus, it is possible to inhibit the front (front of bulge 1019) of utricule component 1014 and cylinder Gap between the outer peripheral surface 1017 in shape portion 1011, such as can be set as being created substantially absent gap.

Also, the rear end of utricule component 1014 becomes the rear side folded-back part 1028 turned back forwards, and is fixed on tubular The outer peripheral surface 1017 in portion 1011.

In rear side folded-back part 1028, the back-end location at the fixed position of outer peripheral surface 1017 relative to cylindrical portion 1011 with The back-end location of outer peripheral surface 1017 is aligned.Thus, it is possible to inhibit the rear portion (rear portion of bulge 1019) of utricule component 1014 and cylinder Gap between the outer peripheral surface 1017 in shape portion 1011, such as can be set as being created substantially absent gap.

In this way, by between the front end and rear end that are set as utricule component 1014 and the outer peripheral surface 1017 of cylindrical portion 1011 Structure very close to each other can be effectively prevented and be stranded in the bubble in the gap when leak test to visual confirmation window portion 1012 Flow and deteriorate the visual confirmation of medical leak inspection device 101.

Also, in the state of before the expansion of utricule component 1014, it is also preferred that a part of utricule component 1014 compares tubular The front end in portion 1011 protrudes more forwards.

In this case, as shown in figure 3, in utricule component 1014 in addition to front side folded-back part 1027 with Cylindrical portion is compared in the state of becoming before the expansion of utricule component 1014 in outer part, the part adjacent with front side folded-back part 1027 1011 front end more forwards protruding portion 1014a outstanding.

By this structure, when medical leak inspection device 101 to be inserted in the body cavity of blood vessel etc., can make to compare The protruding portion 1014a of the soft utricule component 1014 of cylindrical portion 1011 is contacted prior to the top of cylindrical portion 1011 with tissue, therefore It is relatively soft for experiment body (by experiment people etc.).That is, pass through the protruding portion 1014a of utricule component 1014, it being capable of Protection Injury of the tissue of body from the top of cylindrical portion 1011.

The surface of utricule component 1014 can be roughened.For example, being carried out by the appearance to utricule component 1014 coarse Change, is capable of increasing utricule component 1014 to the frictional force (being able to suppress sliding) of the inner peripheral wall of the body cavity of blood vessel etc., so as to Enough medical leak inspection device 101 is steadily fixed for body cavity.

On the other hand, it is roughened by the inner surface to utricule component 1014, it is right to be able to suppress utricule component 1014 The bonding (attaching) and the mutual bonding of utricule component 1014 of the outer peripheral surface 1017 of cylindrical portion 1011.It is expanded in utricule component 1014 In the state of before, a part of the inner surface of the bulge 1019 of utricule component 1014 is tightly attached to the outer peripheral surface of cylindrical portion 1011 1017, and the inner surface of another part of the bulge 1019 of utricule component 1014 and front side folded-back part 1027 or rear side turn back The inner surface in portion 1028 also becomes the state being close to each other, but from this state, can easily make utricule component 1014 from outer Circumferential surface 1017 is removed, or so that utricule component 1014 is removed each other, so as to make utricule component 1014 successfully Expansion.The roughening treatment of the outer surface of utricule component 1014 and inner surface can be by being roughened to mold, then pass through Compression forming utricule component 1014 and transfer the method for rough surface to carry out.

In the past, in patent document 1 (logging in No. 3130152 bulletin of utility model) or 2 (Japanese Unexamined Patent Publication of patent document 2010-240386 bulletin) in documented medical leak inspection device, because the expansion of utricule component is uneven or does not fill Point and that utricule component is accurately fixed on endarterial operation by operator is not light.Also, usually to cylindrical portion The fixation of utricule component carried out using binder, if but utricule component it is generated when expanding in press to and removed from cylindrical portion The direction of utricule component applies, then gap is generated between utricule component and cylindrical portion, and the fluid in utricule component is from the gap It leaks out, so as to will lead to utricule without fully expanding or can not accurately be checked.

On the other hand, as described above, in the medical leak inspection device 101 involved in present embodiment, front side folding The part for returning the fixation of portion 1027 and rear side folded-back part 1028 for the cylindrical portion 1011 for utricule component 1014, for expansion Part is that bulge 1019 is laminated in front side folded-back part 1027 and rear side folded-back part 1028 and throughout the entire outer of cylindrical portion 1011 Week and formed.

Moreover, bulge 1019 is when utricule component 1014 expands with from front side folded-back part 1027 and rear side folded-back part 1028 modes steeply erected expand.Also, bulge 1019 is set to the wide area of the periphery entirety throughout cylindrical portion 1011 Domain, and expand wide region.Therefore utricule component 1014 can be made to be largely expanded.

Also, cylindrical portion is symmetrically fixed in the front end and rear end of utricule component 1014 front and back in the form of identical 1011.Therefore will not go out on the front end and rear end of utricule component 1014, the easy dilatancy as caused by fixed form Existing deviation, and can make utricule component 1014 is unbiased poorly to expand.

Also, when utricule component 1014 expands, the internal pressure for being applied to utricule component 1014, which is respectively perpendicular, acts on utricule The inner surface of component 1014 is whole, therefore acts on and push front side folded-back part 1027 and rear side folded-back part 1028 to cylindrical portion 1011 Direction, so that internal pressure, which will not be acted on from cylindrical portion 1011, removes their direction.Therefore it is expanded by utricule component 1014 When generated internal pressure can prevent utricule component 1014 from removing from cylindrical portion 1011.

In addition, as shown in Figures 5 and 6, if the distance from top to rear end of the utricule component 1014 after expansion is set as L1, the outer diameter before utricule component 1014 is expanded are set as D01, and the outer diameter after utricule component 1014 is expanded is set as D11, then preferably As D01/L1 >=2.0 and D11/D01 >=1.6.

By being set as D01/L1 >=2.0, it can be ensured that the visual field of medical leak inspection device 101 is sufficiently wide, and can It is easy to observe artery valve.Also, using when can further visual confirmation window portion 1012 at a distance from artery valve, and be readily able to Observe valve.

Also, by being set as D11/D01 >=1.6, utricule component 1014 can be made fully to expand, therefore will not be because of fluid It leaks and forms enclosure space, and can prevent that the generation that this problem is pressed in injection can not be applied to artery valve.Further, it is possible to contract Volume before the expansion of folliculus body component 1014, and medical leak inspection device 101 can be made to be easily inserted in main artery or people Work blood vessel.

Fluid injection is with piping 1151 for carrying out to the space 1018 (with reference to Fig. 7) in the front of visual confirmation window portion 1012 Fluid injection.The cardinal extremity of piping 1151 is provided with fluid injection connector 1025 in fluid injection.

Fluid injection is connected with the top end part of piping 1151 and fluid injection inner cavity 1015.Fluid injection with connector 1025 with it is not shown Priming device connection in the state of, can be realized via fluid injection connector 1025, fluid injection be piped 1151, fluid injection inner cavity 1015 and the liquid injection port 1039 fluid injection.

Exhaust is with piping 1161 for carrying out the exhaust from the space 1018 in the front of visual confirmation window portion 1012.It is arranging Gas is provided with exhaust connector 1026 with the cardinal extremity of piping 1161.

The top end part of exhaust piping 1161 is connect with exhaust with inner cavity 1016.When being exhausted, carry out via exhaust With the exhaust outlet 1034 of inner cavity 1016, exhaust inner cavity 1016, exhaust piping 1161 and the exhaust of exhaust connector 1026.

In addition, the space 1018 (Fig. 7) in the visual confirmation front of window portion 1012 includes the inner space of cylindrical portion 1011 And the space more closer to the front than cylindrical portion 1011 or bulge 1019.

Utricule is with piping 1022 for for carrying out confession of the fluid to the gap between utricule component 1014 and cylindrical portion 1011 It gives and fluid is from the piping of the discharge in the gap.The visual confirmation fixation position phase of piping 1022 of the utricule in window portion 1012 It is eccentric for cylindrical portion 1011, and the fixation position of tubular body 1023 of the visual confirmation in window portion 1012 and utricule are piped The distance between 1022 fixation position (the distance between immediate edge) becomes the diameter of tubular body 1023 or less.Such as This is piped 1022 by using close to configuration tubular body 1023 and utricule, can integrally operate in visual confirmation in window portion 1012 Tubular body 1023 and utricule piping 1022, improve the operability of medical leak inspection device 101, and can ensure vision The wide visual field of window portion 1012 is used in confirmation.And utricule with piping 1022 top end part in main part 1013 with intercommunicating pore 1111 The state of connection is fixed, and the rear of the utricule lateral main part 1013 of cardinal extremity of piping 1022 extends.In utricule with matching The cardinal extremity of pipe 1022 is provided with utricule connector 1024.

The fluid supplied to the gap between utricule component 1014 and cylindrical portion 1011 can be liquid, be also possible to gas Body.

Utricule with connector 1024 with it is (not shown) connect to pumping equipment or air-feeding-exhausting apparatus in the state of, fluid passes through By utricule connector 1024, utricule piping 1022 and the supply of intercommunicating pore 1111 to utricule component 1014 and cylindrical portion 1011 it Between gap, thus bulge 1019 expand.

On the other hand, by via intercommunicating pore 1111, utricule piping 1022, utricule connector 1024 and pumping equipment Or the fluid in exhaust apparatus discharge utricule component 1014, reduce bulge 1019.As pumping equipment or exhaust apparatus, energy Enough use syringe.

In addition, for medical leak inspection device 101, can have respectively as utricule piping for capsule The 1st utricule piping of gap supply fluid between body component 1014 and cylindrical portion 1011 and for from utricule component 1014 and The 2nd utricule piping of gap discharge fluid between cylindrical portion 1011.

Tubular body 1023 is the portion for being formed in the interior thereof the hose-like of exhaust inner cavity 1016 and fluid injection inner cavity 1015 Part.The peripheral part of visual confirmation window portion 1012 and 1022 adjacent with utricule piping is fixed in the top end part of tubular body 1023 Position, the rear of the lateral main part 1013 of the cardinal extremity of the tubular body 1023 extends.The top of tubular body 1023 and visual confirmation It is flushed with the front side surface of window portion 1012.Tubular body 1023 is with the axis direction of the tubular body 1023 along the axle center of cylindrical portion 1011 Direction and the tubular body 1023 state eccentric relative to cylindrical portion 1011 are (for example, tubular body 1023 is inscribed in cylindrical portion 1011 state) it is fixed on visual confirmation window portion 1012.

As shown in Fig. 2, insert has metal wire 1060 in the inside of tubular body 1023.Tubulose is inserted through by metal wire 1060 Body 1023 is able to maintain that its shape in bent tube form body 1023, therefore can be improved the behaviour of medical leak inspection device 101 The property made.

Tubular body 1023 and utricule piping 1022 are tied up in base end side by connecting piece 1029.Thus operator can Integrated operation tubular body 1023 and utricule piping 1022, so that the operability of medical leak inspection device 101 is improved.

Then, the manufacturing method of medical leak inspection device 101 is illustrated.It is cured involved in present embodiment It treats in the manufacturing method of leak inspection device 101, firstly, not forming front side folded-back part 1027 and rear side folded-back part 1028 The utricule component 1014 of tubular is covered by the front end portion of cylindrical portion 1011.At this point, becoming the intercommunicating pore 1111 of cylindrical portion 1011 Will not tunica body component 1014 block state.

Then, become the part and the front end portion of cylindrical portion 1011 of front side folded-back part 1027 in utricule component 1014 The binders such as silicone adhesive are injected between outer peripheral surface, and make its solidification.Thus utricule component 1014 is bonded to cylindrical portion 1011 Front end.In addition, injecting binder from the rear end portion side of cylindrical portion 1011.

Then, the tip side of utricule component 1014 rearward turns down, and the end folding of the utricule component 1014 of the fold It is covered into inside by the rear end of cylindrical portion 1011.At this point, the intercommunicating pore 1111 for becoming cylindrical portion 1011 will not be by utricule portion The state that part 1014 blocks.In this way, utricule component 1014 becomes the form turned back in its front and rear part, to form utricule component 1014 front side folded-back part 1027 and rear side folded-back part 1028.

Then, binder is injected between the outer peripheral surface of the rear end part of rear side folded-back part 1028 and cylindrical portion 1011, and Make its solidification.Thus utricule component 1014 is adhered to the rear end part of cylindrical portion 1011.At this point, also from the rear end of cylindrical portion 1011 Binder is injected in portion side.

In this way, in the state that the rear and front end of utricule component 1014 is turned back, and the axial length pair with cylindrical portion 1011 In the state of neat, utricule component 1014 is installed on around cylindrical portion 1011.

Then, the use example of medical leak inspection device 101 involved in present embodiment is illustrated.This implementation Medical leak inspection device 101 involved in mode for example after main artery valve plasty, and main artery 1054 suture before Whether stage, the valve function of can be used in main artery valve 1052 (Fig. 7) check at normal.

Firstly, as shown in fig. 7, the cylindrical portion 1011 of the top end part of medical leak inspection device 101 is configured at big dynamic The inside at the position (hereinafter, downstream portion 1051) of the side farther downstream than main artery valve 1052 in arteries and veins 1054 and main artery valve 1052 Neighbouring position.

Here, the tip portion of utricule component 1014 compares cylindrical portion in the state of before the expansion of utricule component 1014 1011 front end protrudes more forwards, therefore the top end part of medical leak inspection device 101 is being inserted in main artery 1054 Downstream portion 1051 when, than cylindrical portion 1011 tip portion of soft utricule component 1014 prior to cylindrical portion 1011 top with Tissue contact.Therefore, it can reduce the burden of experiment body (subject etc.).

Then, by expanding utricule component 1014, main part 1013 is fixed on to the downstream side of main artery valve 1052.By This, the space between the main part 1013 and utricule component 1014 and main artery valve 1052 of medical leak inspection device 101 1018 become confined space.But the space is connected with the coronary artery 1053 of pair of right and left.

Then, by lifting the base end side of tubular body 1023, the extending direction of tubular body 1023 is set as substantially vertical side To, and main artery valve 1052 is configured in the lower section of main part 1013.

In addition, in operation below, by the way that tubular body 1023 is maintained on certain position, medical assistance leakage inspection Look into the fixation of the main part 1013 and utricule component 1014 of device 101.

Then, myocardium protecting liquid is injected to space 1018 via fluid injection piping 1151 and fluid injection inner cavity 1015.That is, note Liquid piping 1151 and fluid injection inner cavity 1015 are for example for injecting myocardium protecting liquid.Here, injecting myocardium guarantor to space 1018 The exhaust from space 1018 is carried out while protecting liquid.

Here, by tubular body 1023 with the axis direction of tubular body 1023 along the axis direction and pipe of cylindrical portion 1011 The state eccentric relative to cylindrical portion 1011 of shape body 1023 is fixed on cylindrical portion 1011, can be configured at exhaust inner cavity 1016 The peripheral part of visual confirmation window portion 1012.The air in space 1018 easily is discharged from exhaust inner cavity 1016 as a result, And it can more appropriately inhibit in space 1018 residual of the gas (especially in cylindrical portion 1011).

If the myocardium protecting liquid in space 1018 reaches authorized pressure and finishes to carry out from the exhaust in the space 1018 The monitoring (hreinafter referred to as pressure monitor) of the pressure of myocardium protecting liquid in space 1018, via visual confirmation window portion Visual observation of 1012 main artery valve 1052 etc., thus judges valve function.Pressure monitor is able to use signal detecting It is carried out with pressure detecting portions such as converters.

Pressure detecting portion can be for example set to exhaust piping 1161 and exhaust connector 1026 and exhaust apparatus In the piping of connection.For example, by being cut off between the piping and exhaust apparatus after terminating from the exhaust in space 1018, energy It is enough to realize the pressure monitor based on pressure detecting portion.The pressure decline in space 1018 is confirmed by pressure monitor, it is known that valve function Can exist abnormal.Also, the closing situation etc. observed by visual observation to observe main artery valve 1052.

(the 2nd embodiment)

Fig. 8 is the cross-sectional view of medical leak inspection device 101 involved in the 2nd embodiment.

Medical leak inspection device 101, is formed with prominent in utricule component 1014 involved in present embodiment Rise 1140, it is different from medical leak inspection device 101 involved in the first embodiment described above in this regard, in its other party Face is constituted in a manner of identical with medical leak inspection device 101 involved in the first embodiment described above.

In this case, as shown in figure 8, utricule component 1014 outer peripheral surface, and in front side folded-back part 1027 are formed with protrusion 1140 with the portion boundary portion except front side folded-back part 1027.

Protrusion 1140 is, for example, the cyclic rib circumferentially formed along utricule component 1014.Here, cyclic rib, that is, protrusion 1140 It can be formed as cricoid annulus shape, the cricoid shape of C can also be formed as, be also possible to circumferentially intermittently to configure The aggregate of the protrusion of multiple arcuations.

The cross sectional shape for the protrusion 1140 cut off along the axle center of cylindrical portion 1011 can for example be set as round, ellipse, length The oval shapes such as circle.The cross sectional shape of protrusion 1140 is also possible to the shape other than the oval shapes such as rectangle, polygon.

In this case, when manufacturing medical leak inspection device 101, consolidate by utricule component 1014 It, can be easily right by the front part of utricule component 1014 and main part 1013 by protrusion 1140 when main part 1013 Level is set, and the anterior-posterior length of front side folded-back part 1027 easily can be set as specific length.Therefore, it can be improved medical The ease of manufacturing and manufacture stability of leak inspection device 101.

(the 3rd embodiment)

Fig. 9 is the cross-sectional view of medical leak inspection device involved in the 3rd embodiment.

Medical leak inspection device 101 involved in present embodiment is formed with as the outer peripheral surface along cylindrical portion 1011 1017 and indicate rear side folded-back part 1028 fixation position cue mark portion locating slot 1142, in this regard with above-mentioned the Medical leak inspection device 101 involved in 1 embodiment is different, in other respects, with involved by the first embodiment described above And the identical mode of medical leak inspection device 101 constitute.

In this case, as shown in figure 9, being provided with the outer peripheral surface along cylindrical portion 1011 and indicating rear side folding Return the locating slot 1142 of the fixation position in portion 1028.

In addition, being not limited to locating slot 1142, position line can be printed as cue mark portion, positioning can also be formed Protrusion.

In this case, when manufacturing medical leak inspection device 101, consolidate by utricule component 1014 When main part 1013, easily the rear section of utricule component 1014 can be aligned with main part by locating slot 1142 Position.Therefore, the ease of manufacturing and manufacture stability of medical leak inspection device 101 be can be improved.

(the 4th embodiment)

Figure 10 is the overall diagram of medical leak inspection device involved in the 4th embodiment.

Medical leak inspection device 101 is in the outer peripheral surface as utricule component 1014 and position involved in present embodiment It is formed at least one of protrusion or recess portion in the part on the outer peripheral surface of cylindrical portion, is implemented in this regard with the above-mentioned 1st Medical leak inspection device 101 involved in mode is different, in other respects, with involved in the first embodiment described above The identical mode of medical leak inspection device 101 is constituted.

In this case, protrusion (ridge, spot-like projections are formed in the outer surface of utricule component 1014 At least one of Deng) or recess portion (groove, dotted recess portion etc.).By the outer surface of utricule component 1014 be formed with protrusion or Recess portion, the protrusion or recess portion are functioned as anti-slip part, therefore improve the utricule component to main artery or artificial blood vessel 1014 clamping, so as to fix utricule component 1014 well relative to main artery or artificial blood vessel.

More specifically, in this case, as shown in Figure 10, formed in the outer surface of utricule component 1014 There is protrusion 1144.

In the state that utricule component 1014 expands, which at least becomes on the outer surface than utricule component 1014 The more protrusion of the part other than protrusion 1144 state.As an example, protrusion 1144 is not expanded in utricule component 1014 In the state of, also become the state from the part protrusion other than protrusion 1144 on the outer surface of utricule component 1014.

In addition, utricule component 1014 comprising the silicon rubber etc. including protrusion 1144 by constituting.

In this case, protrusion 1144 is ridge (rib).That is, protrusion 1144 includes ridge.Protrusion 1144 Such as be formed as cyclic annular along the circumferential direction (circumferential direction with the axis vertical take-off of cylindrical portion 1011) of utricule component 1014.

Be formed as cricoid protrusion 1144 along the circumferential direction of utricule component 1014 and be not necessarily to continued circling utricule component 1014 outer surface can also intermittently be configured with multiple protrusions 1144 (ridge) in the circumferential.

In this case, protrusion 1144 is for example around the outer surface of utricule component 1014.More specifically, When from the direction orthogonal from the axial direction relative to cylindrical portion 1011, protrusion 1144 is formed as zigzag.

More specifically, cricoid rib, that is, protrusion 1144 of zigzag is separated from each other and is provided with multiple row.As an example, respectively The bending part of protrusion 1144 arranges in the axial direction of cylindrical portion 1011, and each protrusion 1144 is mutually juxtaposed extension.In other words, zigzag The mutual circumferential direction for being spaced in utricule component 1014 in rib, that is, protrusion 1144 on it is uniform.

But the present invention is not limited to the example that the quantity of cricoid rib, that is, protrusion 1144 is multiple row, it is also possible to ring Rib, that is, protrusion 1144 of shape is a column.

Also, protrusion 1144 along the axis vertical take-off with cylindrical portion 1011 circumferentially extending and be formed as zigzag, therefore cylinder Stress in the axial direction in shape portion 1011 is difficult to be applied to protrusion 1144.Therefore, even if also can when utricule component 1014 expands The height (prominent length) of protrusion 1144 is maintained, fully so as to inhibit utricule component 1014 opposite in circumferential direction and axial direction Deviate in the position of main artery or artificial blood vessel.

Also, the protrusion 1144 of multiple row is separated from each other setting (be not intensive or adjacent), therefore can reduce and make utricule Component 1014 expands required pressure, that is, can reduce utricule component 1014 to the internal pressure of main artery or artificial blood vessel.Therefore, It is able to suppress excessive power and is applied to main artery or artificial blood vessel, and can more safely be fixed on utricule component 1014 big dynamic Arteries and veins or artificial blood vessel.Also, setting is separated from each other by the protrusion 1144 of multiple row, it, can be in utricule component in circumferential complete cycle 1014 outer surface make the protrusion 1144 of zigzag forming region and both non-formation regions reliably with main artery or artificial The inner wall of blood vessel contacts, so as to play antiskid effect better.

(the 5th embodiment)

About the window portion 1012 of the visual confirmation in the first embodiment described above, to inhibit using containing filler 1041 It is illustrated for moisture condensation.However, the present invention is not limited to this structures.For example, as shown in figure 11, in the 5th embodiment party Visual confirmation involved in formula be provided with at least part on the surface of the rear side of window portion 1012 be carried out inhibition by The fogging suppression portion 1042 of the hydrophily processing caused by moisture condensation hazed.Figure 11 is about having involved by the 5th embodiment Fogging suppression portion medical leak inspection device the C1-C1 line along Fig. 2 regarding sectional view.

In this way, inhibiting the moisture for being attached to visual confirmation window portion 1012 to be formed as ball by being implemented with hydrophily processing Shape, so as in the surface flat liquid film easy to form of the visual confirmation rear side of window portion 1012.Moreover, being able to suppress The influence that visual confirmation is declined with the visual confirmation to heart in window portion 1012 with visual confirmation.

As hydrophily processing, such as there is plasma-based/sided corona treatment, etching process, the coating process of antifoggant, light is utilized The surface treatment etc. of catalyst (titanium oxide) effect.For example, having as substance used in coating process based on PVP (poly- second Vinyl pyrrolidone), PVA (polyvinyl alcohol), maleic anhydride substance, or including at least ethyl alcohol and surfactant and be added with SiO₂The substance etc. of (silica).

(the 6th embodiment)

About the window portion 1012 of the visual confirmation in the first embodiment described above, by containing the filling with thermal insulation Agent 1041 and inhibit moisture condensation for be illustrated.However, the present invention is not limited to this structures.For example, as shown in figure 12, Involved in the 6th embodiment visual confirmation is provided with the front side of window portion 1012 to be inhibited to be hazed by caused by moisture condensation Fogging suppression portion 1043 with thermal insulation.Figure 12 is about the medical treatment for having fogging suppression portion involved in the 6th embodiment With the regarding sectional view of the C1-C1 line along Fig. 2 of leak inspection device.

For example, fogging suppression portion 1043 shown in Figure 12 is (poly- by having the material than constituting visual confirmation window portion 1012 Carbonic ester etc.) high thermal insulation SiO₂The resin components such as (silica) 1043a is constituted.Resin component 1043a is with from preceding table Surface side covering visual confirmation is arranged with the mode of window portion 1012.In other words, at least part of visual confirmation window portion 1012 is logical It crosses resin component 1043a and the recess portion for the tip side for being formed in cylindrical portion 1011 completely cuts off.

Fogging suppression portion 1043 is by forming air layer between window portion 1012 in resin component 1043a and visual confirmation 1043b improves thermal insulation.Therefore, it is able to suppress and injects the tip side for being formed in cylindrical portion 1011 from fluid injection inner cavity 1015 The movement of heat of the myocardium protecting liquid and visual confirmation of recess portion between window portion 1012.As long as moreover, passing through air layer 1043b energy Enough ensure to generate the sufficient thermal insulation of moisture condensation degree, then resin component 1043a can by with visual confirmation window portion 1012 identical materials (polycarbonate etc.) are formed.

As long as in addition, being able to suppress the hot shifting from recess portion via resin component 1043a to visual confirmation window portion 1012 It is dynamic, air layer 1043b is not limited to by 1012 envelope of resin component 1043a, cylindrical portion 1011 and visual confirmation window portion It closes.For example, it is also possible to which the venthole being connected to air layer 1043b is arranged in a part in visual confirmation window portion 1012.As a result, Can via visual confirmation window portion 1012 venthole from the side air layer 1043b to resin component 1043a, cylindrical portion 1011 and Visual confirmation is sterilized with window portion 1012.

Also, for example, resin component 1043a can be by including that the aeroge of silicon dioxide microparticle is filled in internal resin The formation such as material, it is possible to have have the shape (such as clathrate) of the structure filled with air in inside and have in structure Standby thermal insulation.

In this way, as long as the thermal insulation of resin component 1043a is higher than the thermal insulation of visual confirmation window portion 1012, and different Surely it to be formed with air layer 1043b as shown in Figure 11, also can be provided so Chong Die with visual confirmation window portion 1012.

Moreover, the resin component 1043a for having thermal insulation is not limited to visual confirmation window shown in coverage diagram 11 The mode of the front-surface side in portion 1012 is arranged.For example, it is also possible to cover the side of the back-surface side of visual confirmation window portion 1012 Formula is arranged.Even this structure is also able to suppress by the heat insulation of resin component 1043a resin component 1043a's Rear surface generates moisture condensation.

The constitutive requirements of medical leak inspection device 101 of the invention are individually present without each.Allow following situation: Multiple constitutive requirements are formed as a component；One constitutive requirements is formed by multiple components；A certain constitutive requirements are other A part of constitutive requirements；A part repetition etc. of a part and other constitutive requirements of a certain constitutive requirements.Also, the present invention Medical leak inspection device 101 can combine the multiple features for having and illustrating in various embodiments.

Above-mentioned 1st to the 6th embodiment includes following technical idea.

(1) a kind of medical leak inspection device, has:

Main part has the visual confirmation window of cylindrical portion and the closing cylindrical portion that intercommunicating pore is formed in peripheral wall Portion；

Utricule component, the outer peripheral surface along the cylindrical portion are arranged, and towards the lateral expansion of the cylindrical portion；

Utricule piping, for carrying out injection and discharge to the fluid between the utricule component and the cylindrical portion； And

Tubular body is formed with the fluid injection inner cavity for the space fluid injection to the front of the visual confirmation window portion and use In the exhaust inner cavity of the aperture vents in the front from visual confirmation window portion.

(2) the medical leak inspection device according to (1), wherein

The end of the front side of the utricule component becomes the front side folded-back part rearward turned back, and the front side folded-back part is fixed In the outer peripheral surface other than the forming part of the intercommunicating pore of the cylindrical portion,

The end of the rear side of the utricule component becomes the rear side folded-back part turned back forwards, and the rear side folded-back part is fixed In the outer peripheral surface other than the forming part of the intercommunicating pore of the cylindrical portion.

(3) the medical leak inspection device according to (1) or (2), wherein

Be formed through the intercommunicating pore of peripheral wall in the cylindrical portion, the utricule piping the cylindrical portion inside with The intercommunicating pore connection.

(4) the medical leak inspection device according to (2), wherein

In the outer peripheral surface of the utricule component, and the portion boundary except the front side folded-back part and front side folded-back part Portion is formed with protrusion.

(5) the medical leak inspection device according to (4), wherein

The protrusion is the cyclic rib circumferentially formed along the utricule component.

(6) the medical leak inspection device according to any one of (1) to (5), wherein

The inner peripheral surface of the utricule component becomes rough surface.

(7) the medical leak inspection device according to any one of (1) to (6), wherein

Axis direction and the tubular body phase of the tubular body with the axis direction of the tubular body along the cylindrical portion The visual confirmation window portion is fixed on for the state of the cylindrical portion bias.

(8) the medical leak inspection device according to (7), wherein

The fixation position of utricule piping in the visual confirmation window portion is eccentric relative to the cylindrical portion, and And between the fixation position of the tubular body in the visual confirmation window portion and the fixation position of utricule piping Distance is the diameter of the tubular body or less.

(9) the medical leak inspection device according to (7) or (8), wherein

Insert has metal wire in the tubular body.

(10) the medical leak inspection device according to any one of (1) to (9), wherein

Part on the outer peripheral surface as the utricule component and the outer peripheral surface positioned at the cylindrical portion is formed with protrusion Or at least one of recess portion.

(11) the medical leak inspection device according to (2), wherein

The cue mark portion for indicating the fixation position of the rear side folded-back part is provided with along the outer peripheral surface of the cylindrical portion.

(12) the medical leak inspection device according to any one of (1) to (10), wherein

If the distance from top to rear end of the utricule component after utricule component expansion is set as L1, by utricule Outer diameter before component expansion is set as D01, the outer diameter after the expansion of utricule component is set as D11, then becomes D01/L1 >=2.0 and D11/ D01≥1.6。

(13) the medical leak inspection device according to any one of (1) to (12), wherein

Contain the filler with thermal insulation in the visual confirmation window portion.

(14) the medical leak inspection device according to any one of (1) to (12), wherein

Inhibition is provided with by the fogging suppression portion caused by moisture condensation to haze with window portion in the visual confirmation.

(15) the medical leak inspection device according to (14), wherein

The fogging suppression portion is and at least part to the visual confirmation window portion implements hydrophily processing The position of formation.

(16) the medical leak inspection device according to (14), wherein

The fogging suppression portion is that the antifoggant for including at least ethyl alcohol and surfactant is coated on the visual confirmation The position formed with window portion.

(17) the medical leak inspection device according to any one of (14) to (16), wherein

The fogging suppression portion is set to the rear side of the visual confirmation window portion.

(18) the medical leak inspection device according to (14), wherein

The fogging suppression portion has with the transparent of the high thermal insulation of the material than constituting the visual confirmation window portion Resin component,

The resin component is arranged in a manner of covering the visual confirmation window portion.

(19) the medical leak inspection device according to (14), wherein

The fogging suppression portion by be formed in the resin component being arranged in a manner of covering the visual confirmation window portion with Air layer between the visual confirmation window portion is constituted.

(the 7th embodiment)

Figure 13 is the overall diagram of medical leak inspection device involved in the 7th embodiment.

Figure 14 is the main view from the direction arrow A2 of Figure 13.

Figure 15 is the regarding sectional view of the B2-B2 line along Figure 14.

Figure 16 is the regarding sectional view of the C2-C2 line along Figure 14.

Figure 17 is the regarding sectional view of the D2-D2 line along Figure 14.

Figure 18 is the cross-sectional view for indicating the state of utricule component expansion of the medical leak inspection device of Figure 17.

Figure 19 is the cross-sectional view for illustrating the use example of medical leak inspection device involved in present embodiment.

Medical leak inspection device 201 involved in 7th embodiment has: main part 2013, has cylindrical portion 2011 and close the visual confirmation window portion 2012 of the cylindrical portion 2011；Utricule component 2014；Tubular body 2023, is formed with fluid injection With inner cavity 2015 and exhaust inner cavity 2016.Main part 2013 is by cylindrical portion 2011 and visual confirmation with window portion 2012 preceding Side is formed with recess portion.

Utricule component 2014 is arranged along the outer peripheral surface 2017 of cylindrical portion 2011, and stream is imported between cylindrical portion 2011 Body, thus towards the lateral expansion of cylindrical portion 2011.

Fluid injection is to carry out myocardium protecting liquid etc. to the space 2018 in the visual confirmation front of window portion 2012 with inner cavity 2015 The inner cavity of the fluid injection of fluid.In the present embodiment, the myocardium protecting liquid for being flowed into space 2018 prevents the muscle for making heart from stopping Lead to ischemic, and about 4 DEG C of low temperature when only.Heart becomes low temperature due to myocardium protecting liquid, thereby inhibits its metabolism.

Exhaust is the inner cavity be vented from the space 2018 in the front of visual confirmation window portion 2012 with inner cavity 2016.Note The liquid front end of inner cavity 2015 and exhaust are configured to the preceding table with visual confirmation window portion 2012 with the front end of inner cavity 2016 Face flush or positioned at the more rearward side of front surface than visual confirmation window portion 2012 position.

Also, medical leak inspection device 201 has utricule piping 2022 and metal wire inner cavity 2061.Utricule is used Piping 2022 is the component to injection and the discharge for carrying out fluid between utricule component 2014 and cylindrical portion 2011.In metal wire is used Chamber 2061 is the inner cavity for internally inserting metal wire 2060.

As shown in Figure 14~Figure 17, the cylindrical portion 2011 of main part 2013 is cylindrical shape, visual confirmation 2012 envelope of window portion Close the rear end of cylindrical portion 2011.Visual confirmation window portion 2012 is plate, and axle center of its plate face relative to cylindrical portion 2011 It is orthogonal.And concave shape is formed in the front of main part 2013 with window portion 2012 by cylindrical portion 2011 and visual confirmation.

If above-mentioned low temperature myocardium protecting liquid is flowed into the position of the concave shape via fluid injection inner cavity 2015, vision is true The vapor condensation in the air with the rear of window portion 2012 is recognized, thus on the visual confirmation surface of the rear side of window portion 2012 It is easy to produce moisture condensation.When there is moisture condensation, cause to decline by the visual confirmation of the heart of visual confirmation window portion 2012.

In order to solve this problem, the visual confirmation window portion 2012 involved in present embodiment is containing inhibition by condensing Caused by the filler 2041 (with reference to Figure 16) that hazes.

Filler 2041 is with the contour thermal insulation of base material, that is, polycarbonate than visual confirmation window portion 2012 SiO₂(silica) etc., and be kneaded and be integrally formed with window portion 2012 with visual confirmation.In this way, by visual confirmation window Being kneaded in portion 2012 has the filler 2041 with thermal insulation, and the injection from fluid injection inner cavity 2015 can be prevented to be formed in cylindrical portion The movement of heat of the myocardium protecting liquid and visual confirmation of the recess portion of 2011 tip side between window portion 2012.Therefore, Neng Goufang Only moisture condensation is generated on the surface of the visual confirmation rear side of window portion 2012.

For example, having in visual confirmation in window portion 2012, can be set to the layer of polycarbonate and be kneaded in polycarbonate This double-layer structure of the layer of filler 2041.In this case, if comparing the layer of polycarbonate, the layer for having filler 2041 will be kneaded It is disposed in rear side, then is suitble to inhibit the generation of moisture condensation.

In addition, in the present invention, visual confirmation window portion 2012 can not be the rear end of closing cylindrical portion 2011 but Close the structure of axial midway portion.In this way, concave shape can also be formed in the front of main part 2013.

Its entirety of main part 2013 comprising cylindrical portion 2011 and visual confirmation window portion 2012 is by one bodily form of material At.Main part 2013 is by hard such as polycarbonate and transparent resin material is constituted.

Length (length in the front-back direction in Figure 15~Figure 17) in the axial direction of cylindrical portion 2011 is preferably shorter than cylindrical portion 2011 diameter.It, can be so that visual confirmation window portion 2012 be (such as big dynamic closer to observation object position by so setting Mixer amplification by variable reactance etc.) mode use medical leak inspection device 201, therefore can be improved observation object position visual confirmation.

The intercommunicating pore 2111 of peripheral wall is formed through in cylindrical portion 2011.In the inside of cylindrical portion 2011, intercommunicating pore 2111 It is continuous with piping insertion hole 2132 with the utricule of aftermentioned utricule piping insertion boss portion 2122.

Tubular body insertion boss portion 2121, the insertion capsule of tubular body 2023 are formed in visual confirmation window portion 2012 Utricule piping insertion boss portion 2122 and the stopper section 2070 of body piping 2022.

Tubular body insertion boss portion 2121 is in visual confirmation with the peripheral part of window portion 2012 along the axis of cylindrical portion 2011 Heart direction and the state eccentric relative to cylindrical portion 2011 setting.The base end side that tubular body is inserted into boss portion 2121 becomes from view Feel the rear surface open end outstanding of confirmation window portion 2012, tip side is consistent with the front surface of window portion 2012 with visual confirmation. And visual confirmation window portion 2012 is reached through tip side by being formed with from the base end side that tubular body is inserted into boss portion 2121 The tubular body insertion hole 2131 (referring to Figure 16) of front surface, the both ends that tubular body is inserted into boss portion 2121 become open end.

A part of the open end of the front side in tubular body insertion hole 2131 is covered by stopper section 2070.The stopper section 2070 Structure when tubular body is inserted into hole 2131 for being positioned is inserted in for tubular body 2023.

Utricule is with piping insertion boss portion 2122 in the peripheral part of visual confirmation window portion 2012 along cylindrical portion 2011 Axis direction and the state and tubular body eccentric relative to cylindrical portion 2011 be inserted into boss portion 2121 and be disposed adjacently.Utricule Base end side with piping insertion boss portion 2122 is prominent from the rear side surface of visual confirmation window portion 2012, and top is laterally formed in It is prominent in the recess portion of the tip side of cylindrical portion 2011.It is formed from utricule with base end side to the tip side of piping insertion boss portion 2122 There is utricule piping insertion hole 2132 (referring to Figure 17), and utricule becomes opening with the base end side of piping insertion boss portion 2122 End, and tip side becomes closed end.The intercommunicating pore in utricule piping insertion hole 2132 and the peripheral wall for being formed in cylindrical portion 2011 2111 is continuous.

The protruding portion 2071 of stopper section 2070 is inserted into hole in the front surface covering tubular body of visual confirmation window portion 2012 A part of the open end of 2131 tip side.Tubular body 2023 is inserted into tubular body insertion hole 2131, can be until tubulose Until the top of body 2023 is abutted with the protruding portion 2071 of stopper section 2070.And in the top of tubular body 2023 and protruding portion In the state that 2071 abut, which is flushed with visual confirmation with the front side surface of window portion 2012.

Protruding portion 2071 to tubular body insertion hole 2131 direction the prominent tip portion for being preferably protruding portion 2071 only The degree abutted with the inner peripheral portion of tubular body 2023.That is, it is preferred that from fluid injection inner cavity 2015 to the outer peripheral surface of tubular body 2023 Distance be longer than protruding portion 2071 towards tubular body insertion hole 2131 stretch out eaves shape part length.Thus, it is possible to prevent backstop Portion 2070 is interfered through the fluid injection of the fluid (myocardium protecting liquid) of fluid injection inner cavity 2015 or the row by exhaust inner cavity 2016 Gas.

Protruding portion 2071 is inserted into the peripheral part in hole 2131 and the part of the peripheral wall farthest away from cylindrical portion 2011 from tubular body And its be nearby partially toward exhaust inner cavity 2016 direction protrusion formed.Even if as a result, when in use gas bubbles left in protrusion In the case where the lower face side (rear side of visual confirmation window portion 2012) in portion 2071, only it is located at exhaust inner cavity 2016 upper The mode of side tilts medical leak inspection device 201, increase the remaining bubble and in successfully using from exhaust Chamber 2016 is discharged.

Utricule component 2014 along cylindrical portion 2011 entire outer peripheral surface 2017 and be arranged, and led between cylindrical portion 2011 Enter fluid, thus towards the lateral expansion of cylindrical portion 2011.In the following description, the part for utricule component 2014 will be used for expanding Referred to as bulge 2019.The shape of utricule component 2014 is not particularly limited, but the utricule component 2014 of present embodiment is by swollen Swollen portion 2019, front side folded-back part 2027 and rear side folded-back part 2028 are constituted.

Utricule component 2014 is the barrel shape formed by the excellent material of the retractilities such as silicon rubber.2014 exterior of utricule component Around the outer peripheral surface 2017 of cylindrical portion 2011, and the top end part (front end) and base end part (rear end) are individually fixed in cylinder Shape portion 2011.The method that cylindrical portion 2011 is fixed in the top end part of utricule component 2014 and base end part is not particularly limited, but Such as it can be set as being adhesively fixed.

As shown in Figure 15~Figure 17, in this case, the front end of utricule component 2014 becomes rearward The front side folded-back part 2027 of fold-back, and it is fixed on the outer peripheral surface 2017 of cylindrical portion 2011.

In front side folded-back part 2027, the front position at the fixed position of outer peripheral surface 2017 relative to cylindrical portion 2011 with The front position of outer peripheral surface 2017 is aligned.Thereby, it is possible to inhibit the front (front of bulge 2019) of utricule component 2014 with Gap between the outer peripheral surface 2017 of cylindrical portion 2011, such as can be set as being created substantially absent gap.

Also, the rear end of utricule component 2014 becomes the rear side folded-back part 2028 turned back forwards, and is fixed on tubular The outer peripheral surface 2017 in portion 2011.

In rear side folded-back part 2028, the back-end location at the fixed position of outer peripheral surface 2017 relative to cylindrical portion 2011 with The back-end location of outer peripheral surface 2017 is aligned.Thereby, it is possible to inhibit the rear portion (rear portion of bulge 2019) of utricule component 2014 with Gap between the outer peripheral surface 2017 of cylindrical portion 2011, such as can be set as being created substantially absent gap.

In this way, by between the front end and rear end that are set as utricule component 2014 and the outer peripheral surface 2017 of cylindrical portion 2011 Structure very close to each other can be effectively prevented and be stranded in the bubble in the gap when leak test to visual confirmation window portion 2012 Flow and deteriorate the visual confirmation of medical leak inspection device 201.

Also, in the state of before the expansion of utricule component 2014, it is also preferred that a part of utricule component 2014 compares tubular The front end in portion 2011 protrudes more forwards.

In this case, as shown in figure 15, in utricule component 2014 in addition to front side folded-back part 2027 Tubular is compared in the state of becoming before the expansion of utricule component 2014 in part in addition, the part adjacent with front side folded-back part 2027 The front end in portion 2011 more forwards protruding portion 2014a outstanding.

By this structure, when medical leak inspection device 201 to be inserted in the body cavity of blood vessel etc., can make to compare The protruding portion 2014a of the soft utricule component 2014 of cylindrical portion 2011 is contacted prior to the top of cylindrical portion 2011 with tissue, therefore It is relatively soft for testing body (subject etc.).That is, pass through the protruding portion 2014a of utricule component 2014, it being capable of Protection Injury of the tissue of body from the top of cylindrical portion 2011.

The surface of utricule component 2014 can be roughened.For example, being carried out by the outer surface to utricule component 2014 thick Roughening is capable of increasing the frictional force (being able to suppress sliding) of the utricule component 2014 of the inner peripheral wall of the body cavity to blood vessel etc., and Medical leak inspection device 201 can be steadily fixed to body cavity.

On the other hand, it is roughened by the inner surface to utricule component 2014, it is right to be able to suppress utricule component 2014 The bonding (attaching) of the outer peripheral surface 2017 of cylindrical portion 2011 and the mutual bonding of inner surface of utricule component 2014.In utricule component In the state of before 2014 expansions, a part of the inner surface of the bulge 2019 of utricule component 2014, which becomes, is tightly attached to cylindrical portion The state of the inner surface portion of 2011 outer peripheral surface 2017 or other utricule components 2014.But by utricule component 2014 Inner surface be roughened, can easily make utricule component 2014 from the portion of outer peripheral surface 2017 or other utricule components 2014 Divide removing, so as to expand utricule component 2014 successfully.The outer surface of utricule component 2014 and the roughening of inner surface Processing compression forming utricule component 2014 and can transfer the method for rough surface and being roughened to mold to carry out.

As described above, in the medical leak inspection device 201 involved in present embodiment, front side folded-back part 2027 and Rear side folded-back part 2028 is the part of the fixation of the cylindrical portion 2011 for utricule component 2014, and the part for expansion expands Portion 2019 is laminated in front side folded-back part 2027 and rear side folded-back part 2028 and is formed throughout the entire periphery of cylindrical portion 2011.

Moreover, bulge 2019 is when utricule component 2014 expands with from front side folded-back part 2027 and rear side folded-back part 2028 modes steeply erected expand.Also, bulge 2019 is set to the wide area of the periphery entirety throughout cylindrical portion 2011 Domain, and expand the width region.Therefore utricule component 2014 can be made to be largely expanded.

Also, cylindrical portion is symmetrically fixed in the front end and rear end of utricule component 2014 front and back in the form of identical 2011.Therefore will not go out on the front end and rear end of utricule component 2014, the easy dilatancy as caused by fixed form Existing deviation, and can make utricule component 2014 is unbiased poorly to expand.

Also, when utricule component 2014 expands, the internal pressure for being applied to utricule component 2014, which is respectively perpendicular, acts on utricule The inner surface of component 2014 is whole, therefore can act on and push front side folded-back part 2027 and rear side folded-back part 2028 to cylindrical portion 2011 direction, so that internal pressure will not be acted on from the direction that cylindrical portion 2011 removes them.Therefore pass through utricule component Generated internal pressure can prevent utricule component 2014 from removing from cylindrical portion 2011 when 2014 expansion.

In addition, in the present invention, the installation of utricule component 2014 is not limited to aforesaid way, its other party can also be passed through Formula carries out.For example, also can be set to and be not provided with when utricule component 2014 to be fixed on to the outer peripheral surface 2017 of cylindrical portion 2011 The form of front side folded-back part 2027 or rear side folded-back part 2028.Also, it about the front end portion of utricule component 2014, can not be It is fixed on the outer peripheral surface 2017 of cylindrical portion 2011 and is affixed to the form of tip portion.

Fluid injection is used to carry out the space 2018 to the front of visual confirmation window portion 2012 with inner cavity 2015 (with reference to Figure 19) Fluid injection.Piping 2151 (referring to Figure 13) is provided with fluid injection connector via fluid injection with the cardinal extremity of inner cavity 2015 in fluid injection 2025。

It is formed with the top end part of inner cavity 2015 for carrying out the sky to the front of visual confirmation window portion 2012 in fluid injection Between 2018 fluid injections liquid injection port 2039.It, can in the state that fluid injection is connect with connector 2025 with priming device (not shown) Realize the fluid injection via fluid injection connector 2025, fluid injection piping 2151, fluid injection inner cavity 2015 and its liquid injection port 2039.

Exhaust is used to carry out the exhaust from the space 2018 in the front of visual confirmation window portion 2012 with inner cavity 2016.It is arranging Gas is provided with exhaust connector 2026 with the cardinal extremity of inner cavity 2016 (with reference to Figure 13).

Exhaust with inner cavity 2016 in visual confirmation with being configured in window portion 2012 than fluid injection inner cavity 2015 closer to tubular The position of the peripheral wall in portion 2011.It is configured at than fluid injection inner cavity 2015 by exhaust inner cavity 2016 closer to cylindrical portion 2011 The position of peripheral wall, such as explained later can successfully carry out the exhaust from space 2018.

Top end part opening in exhaust inner cavity 2016 has exhaust outlet 2034.Exhaust is with inner cavity 2016 via exhaust outlet 2034 The gas in the space 2018 in the visual confirmation front of window portion 2012 is discharged.It is used that is, can be realized via exhaust outlet 2034, exhaust Inner cavity 2016, exhaust use the exhaust of connector 2026 with piping 2161 and exhaust.

In addition, the space 2018 (Figure 19) in the visual confirmation front of window portion 2012 includes the inner space of cylindrical portion 2011 And the space more closer to the front than cylindrical portion 2011 or bulge 2019.

Utricule supplies fluid for carrying out the gap between utricule component 2014 and cylindrical portion 2011 with piping 2022 And the piping from gap discharge fluid.The intercommunicating pore 2111 of peripheral wall, utricule piping are formed through in cylindrical portion 2011 2022 connect from the inside of cylindrical portion 2011 with intercommunicating pore 2111.The visual confirmation piping 2022 of the utricule in window portion 2012 Fixed position is eccentric relative to cylindrical portion 2011, and the fixation position of tubular body 2023 of the visual confirmation in window portion 2012 with Utricule becomes the straight of tubular body 2023 with the distance between the fixation position of piping 2022 (the distance between immediate edge) Below diameter.In this way, by being piped 2022 with tubular body 2023 and utricule is closely configured in window portion 2012 in visual confirmation, energy Enough one operation tubular bodies 2023 and utricule piping 2022, improve the operability of medical leak inspection device 201, and energy Enough ensure the wide visual field of visual confirmation window portion 2012.

The fixation of utricule piping 2022 is inserted by being inserted in the utricule piping of utricule piping insertion boss portion 2122 Enter hole 2132 to carry out.The top end part 2221 of utricule piping 2022, which is fixed on not block, is formed in utricule piping insertion hole The position of intercommunicating pore 2111 in 2132.Thus become the state that utricule is connected to piping 2022 with intercommunicating pore 2111.Utricule is used The rear of the lateral main part 2013 of cardinal extremity of piping 2022 extends.The cardinal extremity of piping 2022 is provided with utricule connection in utricule Device 2024 (refers to Figure 13).

The fluid supplied to the gap between utricule component 2014 and cylindrical portion 2011 can be liquid, be also possible to gas Body.

Utricule with connector 2024 with it is (not shown) connect to pumping equipment or air-feeding-exhausting apparatus in the state of, fluid passes through By utricule connector 2024, utricule piping 2022, utricule piping insertion hole 2132 and the supply of intercommunicating pore 2111 to utricule Gap between component 2014 and cylindrical portion 2011, thus bulge 2019 expands.

On the other hand, by via intercommunicating pore 2111, utricule piping insertion hole 2132, utricule piping 2022, utricule With the fluid in connector 2024 and pumping equipment or exhaust apparatus discharge utricule component 2014, reduce bulge 2019.Make For pumping equipment or exhaust apparatus, it is able to use syringe.

In addition, medical leak inspection device 201 is piped as utricule can have respectively for utricule component 201st utricule of the gap supply fluid between 2014 and cylindrical portion 2011 is piped and is used for from utricule component 2014 and tubular The 2nd utricule piping of gap discharge fluid between portion 2011.

Metal wire inner cavity 2061 is in the inner cavity that internal insert has metal wire 2060.Pipe is inserted through by metal wire 2060 Shape body 2023 is able to maintain that its shape in bent tube form body 2023, therefore can be improved medical leak inspection device 201 Operability.

There is visual confirmation window portion 2012 the tubular body insertion hole 2131 of insert tubular body 2023 and covering tubular body to insert Enter the stopper section 2070 of a part in the front openings portion in hole 2131.Tubular body 2023 be inserted through tubular body insertion hole 2131 and In the state that the front end of tubular body 2023 is abutted with stopper section 2070, the fluid injection front end of inner cavity 2015 and exhaust inner cavity 2016 front end is located at the position flushed with visual confirmation with the front surface in the front of window portion 2012.

Tubular body 2023 is with the axis direction of tubular body 2023 along the axis direction and tubular body 2023 of cylindrical portion 2011 The state eccentric relative to cylindrical portion 2011 is fixed on cylindrical portion 2011.

Tubular body insertion boss portion 2121 is formed with around tubular body insertion hole 2131.The base end side of tubular body 2023 Extend to the rear of main part 2013.Fluid injection uses each cardinal extremity side section of piping 2161 from tubular body with piping 2151 and exhaust 2023 base end side export.

Also, insert has metal wire 2060 in the inside of tubular body 2023.In the present embodiment, metal wire 2060 is to insert It passes through metal wire and is accommodated in tubular body 2023 with the state of inner cavity 2061.

It is inserted through tubular body 2023 by metal wire 2060, is able to maintain that its shape in bent tube form body 2023, therefore It can be improved the operability of medical leak inspection device 201.

And the top end part of tubular body 2023 is abutted by the protruding portion 2071 with stopper section 2070 with visual confirmation window portion 2012 front side surface flushes.

The top of fluid injection inner cavity 2015 reaches the top of tubular body 2023, and front end and pipe of the fluid injection with inner cavity 2015 The front end of shape body 2023 flushes.Also, exhaust also reaches the top of tubular body 2023 with the front end of inner cavity 2016, and is vented It is flushed with the top of inner cavity 2016 with the front end of tubular body 2023.And the front end of tubular body 2023 and visual confirmation window The front side surface in portion 2012 flushes, therefore fluid injection inner cavity 2015 and exhaust are with the front end of inner cavity 2016 and visual confirmation window The front surface in portion 2012 flushes.

As shown in figure 14, in each inner cavity in tubular body 2023, exhaust inner cavity 2016 is configured near cylindrical portion The position of 2011 peripheral wall, and it is configured at the position adjacent with the peripheral wall.Pass through the inner cavity 2016, Neng Goushun of exhaust configured in this way It is carried out sharply between the main part 2013 and utricule component 2014 and main artery valve 2052 of medical leak inspection device 201 The exhaust in space 2018.

Also, tubular body 2023 and utricule are tied up in base end side by connecting piece 2029 (referring to Figure 13) with piping 2022. Thus user can integrated operation tubular body 2023 with utricule be piped 2022, to improve medical leak inspection device 201 operability.

Then, the use example of medical leak inspection device 201 involved in present embodiment is illustrated.This implementation Medical leak inspection device 201 involved in mode is for example after main artery valve plasty, and before the suture of main artery 2054 Stage, whether the valve function of can be used in main artery valve 2052 (Figure 19) check at normal.

Firstly, as shown in figure 19, the cylindrical portion 2011 of the top end part of medical leak inspection device 201 is configured at big dynamic The inside at the position (hereinafter, downstream portion 2051) of side and main artery valve 2052 is attached farther downstream than main artery valve 2052 in arteries and veins 2054 Close position.

Here, even if the tip portion of utricule component 2014 compares tubular in the state of before the expansion of utricule component 2014 The front end in portion 2011 protrudes more forwards, therefore the top end part of medical leak inspection device 201 is being inserted in main artery When 2054 downstream portion 2051, top of the tip portion of soft utricule component 2014 prior to cylindrical portion 2011 than cylindrical portion 2011 End is contacted with tissue.Therefore, it can reduce the burden of experiment body (subject etc.).

Then, by expanding utricule component 2014, main part 2013 is fixed on to the downstream side of main artery valve 2052.By This, the space between the main part 2013 and utricule component 2014 and main artery valve 2052 of medical leak inspection device 201 2018 become confined space.But the space is connected with the coronary artery 2053 of pair of right and left.

Then, by lifting the base end side of tubular body 2023, the extending direction of tubular body 2023 is set as substantially vertical side To, and main artery valve 2052 is configured in the lower section of main part 2013.

In addition, in operation below, by the way that tubular body 2023 is maintained on certain position, medical assistance leakage inspection Look into the fixation of the main part 2013 and utricule component 2014 of device 201.

Then, myocardium protecting liquid is injected to space 2018 with inner cavity 2015 via fluid injection.That is, fluid injection with inner cavity 2015 for example For injecting myocardium protecting liquid.The exhaust from space 2018 is carried out while here, injecting myocardium protecting liquid to space 2018.

Here, the recess portion that medical leak inspection device 201 will be formed in front uses downward, and space 2018 Interior bubble moves upward in recess portion due to its buoyancy.Therefore make to be vented by tilting visual confirmation window portion 2012 It is located above with inner cavity 2016, so as to which bubble to be guided into the direction of exhaust inner cavity 2016.

In the past, in patent document 1 (logging in No. 3130152 bulletin of utility model) in documented technology, although shape At the gas vent for the exhaust for having front surface of the progress from visual confirmation window portion, but it is difficult to prevent the peripheral wall of cylindrical portion and gas vent Boundary part in bubble residual.

On the other hand, fluid injection involved in present embodiment is located at and visual confirmation window portion with the front end of inner cavity 2015 The position that 2012 front surface flushes, thus along the visual confirmation front surface of window portion 2012 and to the row of exhaust inner cavity 2016 The mobile bubble of port 2034 will not be stranded in the periphery of fluid injection inner cavity 2015, so as to which bubble successfully to be guided into exhaust With inner cavity 2016.

Also, it is located at by exhaust with the front end of inner cavity 2016 and is flushed with the front surface of window portion 2012 with visual confirmation Position, by the front of medical leak inspection device 201 towards below vertical when using medical leak inspection device 201 In the case of, compared to the visual confirmation front surface of window portion 2012, the exhaust outlet 2034 of exhaust inner cavity 2016 is located above.Therefore Bubble is naturally led to the row of exhaust inner cavity 2016 because of its buoyancy from visual confirmation with the front surface of window portion 2012 Port 2034, so as to be easy to carry out exhaust.

Also, by tubular body 2023 with the axis direction of tubular body 2023 along the axis direction and pipe of cylindrical portion 2011 The state eccentric relative to cylindrical portion 2011 of shape body 2023 is fixed on cylindrical portion 2011, can be configured at exhaust inner cavity 2016 The peripheral part of visual confirmation window portion 2012.The sky that thereby, it is possible to be easy to be discharged from exhaust inner cavity 2016 in space 2018 Gas, so as to more appropriately inhibit the residual of gas in space 2018.

In this way, by preventing gas bubbles left in space 2018, so as to ensure via the good of visual confirmation window portion The good visual field.

If the myocardium protecting liquid in space 2018 reaches authorized pressure and finishes to carry out from the exhaust in the space 2018 The monitoring (hreinafter referred to as pressure monitor) of the pressure of myocardium protecting liquid in space 2018 or via visual confirmation window portion Visual observation of 2012 main artery valve 2052 etc., thus judges valve function.Pressure monitor is able to use signal detecting conversion The pressure detecting portions such as device carry out.

Pressure detecting portion can be for example set in the piping of connection exhaust connector 2026 and exhaust apparatus, and be passed through It is cut off, can be realized based on pressure detecting between the piping and exhaust apparatus after terminating from the exhaust in space 2018 The pressure monitor in portion.The pressure decline in space 2018 is confirmed by pressure monitor, it is known that valve function exists abnormal.Also, it is logical The closing situation etc. for crossing visually observation to observe main artery valve 2052.

(the 8th embodiment)

About the visual confirmation window portion 2012 in above-mentioned 7th embodiment, by inhibiting containing filler 2041 It is illustrated for moisture condensation.However, the present invention is not limited to this structures.For example, as shown in figure 20, in the 8th embodiment party Visual confirmation involved in formula is provided with at least part on the surface of the rear side of window portion 2012 implements inhibition by condensing Caused by haze hydrophily processing fogging suppression portion 2042.Figure 20 is risen involved in the 8th embodiment about having The regarding sectional view of the C2-C2 line along Figure 14 of the medical leak inspection device of mist suppressing portion.

In this way, inhibiting the moisture for being attached to visual confirmation window portion 2012 to be formed as ball by being implemented with hydrophily processing Shape, so as in the surface flat liquid film easy to form of the visual confirmation rear side of window portion 2012.Moreover, being able to suppress The influence of visual confirmation decline to heart of the visual confirmation in window portion 2012.

As hydrophily processing, such as there are plasma-based/sided corona treatment, etching process, the coating process of antifoggant and be utilized The surface treatment etc. of photochemical catalyst (titanium oxide) effect.For example, having (poly- based on PVP as substance used in coating process Vinyl pyrrolidone), PVA (polyvinyl alcohol), maleic anhydride substance, or include at least ethyl alcohol and surfactant and addition There is SiO₂The substance etc. of (silica).

(the 9th embodiment)

About the visual confirmation window portion 2012 in above-mentioned 7th embodiment, by containing the filling with thermal insulation Agent 2041 and inhibit moisture condensation for be illustrated.However, the present invention is not limited to this structures.For example, as shown in figure 21, Involved in the 9th embodiment visual confirmation is provided with the front side of window portion 2012 to be inhibited to be hazed by caused by moisture condensation Fogging suppression portion 2043 with thermal insulation.Figure 21 is about the medical treatment for having fogging suppression portion involved in the 9th embodiment With the regarding sectional view of the C2-C2 line along Figure 14 of leak inspection device.

For example, fogging suppression portion 2043 shown in Figure 21 is (poly- by having the material than constituting visual confirmation window portion 2012 Carbonic ester etc.) high thermal insulation SiO₂The resin components such as (silica) 2043a is constituted.Resin component 2043a is with from preceding table Surface side covering visual confirmation is arranged with the mode of window portion 2012.In other words, at least part of visual confirmation window portion 2012 is logical It crosses resin component 2043a and the recess portion for the tip side for being formed in cylindrical portion 2011 completely cuts off.

Fogging suppression portion 2043 is by forming air layer between window portion 2012 in resin component 2043a and visual confirmation 2043b improves thermal insulation.Therefore, it is able to suppress and injects the tip side for being formed in cylindrical portion 2011 from fluid injection inner cavity 2015 The movement of heat of the myocardium protecting liquid and visual confirmation of recess portion between window portion 2012.As long as moreover, passing through air layer 2043b energy Enough ensure to generate the sufficient thermal insulation of moisture condensation degree, then resin component 2043a can by with visual confirmation window portion 2012 identical materials (polycarbonate etc.) are formed.

As long as in addition, being able to suppress the hot shifting from recess portion via resin component 2043a to visual confirmation window portion 2012 It is dynamic, it is close by resin component 2043a, cylindrical portion 2011 and visual confirmation window portion 2012 to be not limited to air layer 2043b Envelope.For example, it is also possible to which the venthole being connected to air layer 2043b is arranged in a part in visual confirmation window portion 2012.As a result, Can via visual confirmation window portion 2012 venthole from the side air layer 2043b to resin component 2043a, cylindrical portion 2011 and Visual confirmation is sterilized with window portion 2012.

Also, for example, resin component 2043a can be by including that the aeroge of silicon dioxide microparticle is filled in internal resin The formation such as material, it is possible to have have the shape (such as clathrate) of the structure filled with air in inside and have in structure Standby thermal insulation.

As long as being not necessarily to one in this way, the thermal insulation of resin component 2043a is higher than the thermal insulation of visual confirmation window portion 2012 Surely it to be formed with such air layer 2043b as shown in figure 21, also can be provided so Chong Die with visual confirmation window portion 2012.

Moreover, the resin component 2043a for having thermal insulation is not limited to visual confirmation window shown in coverage diagram 21 The mode of the front-surface side in portion 2012 is arranged.For example, it is also possible to cover the side of the back-surface side of visual confirmation window portion 2012 Formula is arranged.Even this structure is able to suppress after resin component 2043a by the heat insulation of resin component 2043a Surface generates moisture condensation.

In above-mentioned 7th embodiment, to the front end of the front end of fluid injection inner cavity 2015 and exhaust inner cavity 2016 The example that the mode that portion is located at the position flushed with visual confirmation with the front surface of window portion 2012 is constituted is illustrated.

But the present invention is not limited to this structures, for example, it is also possible to front end and row with fluid injection with inner cavity 2015 The front end of gas inner cavity 2016 is located at the mode structure of the position of side more more rearward than the front surface of visual confirmation window portion 2012 At.Even this structure, with the front end of the front end of fluid injection inner cavity 2015 and exhaust inner cavity 2016 be located at than with view The case where feeling the position that is flushed with the front surface of window portion 2012 of confirmation position closer to the front is compared, and is readily able to from visual confirmation It is exhausted with the space 2018 in the front of window portion 2012 to exhaust inner cavity 2016.

In particular, as long as the front end of fluid injection inner cavity 2015 and the front end of exhaust inner cavity 2016 are positioned at more true than vision The structure for recognizing the position of the more rearward side of front surface with window portion 2012, then can collect in the recessed of visual confirmation window portion 2012 Portion's remaining bubble of institute and be smoothly discharged out.Specifically, passing through so that the rear side of visual confirmation window portion 2012 is towards upper The mode of side tilts medical leak inspection device 201, and the recess portion institute that can collect in visual confirmation window portion 2012 is remaining Bubble and be successfully exhausted from exhaust with inner cavity 2016.

Furthermore, it is also possible to the front end of the front end of fluid injection inner cavity 2015 and exhaust inner cavity 2016 be located at than with tree The position of the more rearward side in position of the front surface of position or resin component 2043a that the front surface of rouge component 2043a flushes Mode is constituted.

In particular, when the fluid injection front end of inner cavity 2015 and exhaust to be set as and be set with the position of the front end of inner cavity 2016 When the position that rouge component 2042a is flushed, stopper section 2070 can also be formed in resin component 2042a.It is even medical to let out Leakage check device 201 has the structure in the fogging suppression portion 2042 with resin component 2042a, identically as said effect, energy Enough it is easy to be exhausted from the space 2018 in the front of visual confirmation window portion 2012 to exhaust inner cavity 2016.

The constitutive requirements of medical leak inspection device 201 of the invention are individually present without each.Allow following situation: Multiple constitutive requirements are formed as a component；One constitutive requirements is formed by multiple components；A certain constitutive requirements are other A part of constitutive requirements；A part repetition etc. of a part and other constitutive requirements of a certain constitutive requirements.

Above-mentioned 7th to the 9th embodiment includes following technical idea.

(1) a kind of medical leak inspection device, has:

Main part, the visual confirmation window portion with cylindrical portion and the closing cylindrical portion, and by the cylindrical portion and The visual confirmation is formed with recess portion in front with window portion；

Utricule component, the outer peripheral surface along the cylindrical portion are arranged, and and the importing fluid between the cylindrical portion Towards the lateral expansion of the cylindrical portion；And

Tubular body is formed with the fluid injection inner cavity for the space fluid injection to the front of the visual confirmation window portion and use In the exhaust inner cavity of the aperture vents in the front for carrying out the visual confirmation window portion.

(2) the medical leak inspection device according to (1), with the front end of the fluid injection inner cavity and the row The front end of gas inner cavity is located at the position flushed with the front surface of visual confirmation window portion or is located at more true than the vision Recognize and is constituted with the mode of the position of the more rearward side of the front surface of window portion.

(3) the medical leak inspection device according to (1) or (2), wherein

In the visual confirmation window portion, the exhaust is configured at than the fluid injection inner cavity with inner cavity closer to the cylinder The position of the peripheral wall in shape portion.

(4) the medical leak inspection device according to any one of (1) to (3), wherein

There is the visual confirmation window portion tubular body insertion hole for inserting the tubular body and the covering tubular body to insert Enter the stopper section of a part in the front openings portion in hole,

It is supported in the front end that the tubular body is inserted through the tubular body insertion hole and the tubular body with the stopper section In the state of connecing, the front end of the front end of the fluid injection inner cavity and the exhaust inner cavity is located to be used with the visual confirmation The position that the front surface in the front of window portion flushes or the position positioned at the more rearward side of front surface than the visual confirmation window portion It sets.

(5) the medical leak inspection device according to any one of (1) to (4), wherein

Axis direction and the tubular body phase of the tubular body with the axis direction of the tubular body along the cylindrical portion The cylindrical portion is fixed on for the state of the cylindrical portion bias.

(6) the medical leak inspection device according to any one of (1) to (5), wherein

The medical leak inspection device is also equipped with:

Utricule piping, for carrying out injection and discharge to the fluid between the utricule component and the cylindrical portion,

Be formed through the intercommunicating pore of peripheral wall in the cylindrical portion, the utricule piping from the inside of the cylindrical portion with The intercommunicating pore connection,

The fixation position of utricule piping in the visual confirmation window portion is eccentric relative to the cylindrical portion, and And between the fixation position of the tubular body in the visual confirmation window portion and the fixation position of utricule piping Distance is the diameter of the tubular body or less.

(7) the medical leak inspection device according to any one of (1) to (6), wherein

Insert has metal wire in the tubular body.

(8) the medical leak inspection device according to any one of (1) to (7), wherein

Contain the filler with thermal insulation in the visual confirmation window portion.

(9) the medical leak inspection device according to any one of (1) to (7), wherein

Inhibition is provided with by the fogging suppression portion caused by moisture condensation to haze with window portion in the visual confirmation.

(10) the medical leak inspection device according to (9), wherein

The fogging suppression portion is and at least part to the visual confirmation window portion implements hydrophily processing The position of formation.

(11) the medical leak inspection device according to (9), wherein

The fogging suppression portion is that the antifoggant for including at least ethyl alcohol and surfactant is coated on the visual confirmation The position formed with window portion.

(12) the medical leak inspection device according to any one of (9) to (11), wherein

The fogging suppression portion is set to the rear side of the visual confirmation window portion.

(13) the medical leak inspection device according to (9), wherein

The fogging suppression portion has with the transparent of the high thermal insulation of the material than constituting the visual confirmation window portion Resin component,

The resin component is arranged in a manner of covering the visual confirmation window portion.

(14) the medical leak inspection device according to (9), wherein

The fogging suppression portion by be formed in the resin component being arranged in a manner of covering the visual confirmation window portion with Air layer between the visual confirmation window portion is constituted.

(15) a kind of medical leak inspection device, which is characterized in that have:

Main part, the visual confirmation window portion with cylindrical portion and the closing cylindrical portion, and by the cylindrical portion and The visual confirmation is formed with recess portion in front with window portion；And

Fluid injection inner cavity, for carrying out the fluid injection in the space to the front of the visual confirmation window portion,

It is provided with and is inhibited by the fogging suppression portion caused by moisture condensation to haze with window portion in the visual confirmation,

The fogging suppression portion is the transparent tree with the high thermal insulation of the material than constituting the visual confirmation window portion Rouge material, the resin component are arranged in a manner of covering the visual confirmation window portion.

Industrial availability

Medical leak inspection device involved according to the present invention, it can be ensured that via the good of visual confirmation window portion The visual field, therefore be suitable for the inspection of artery valve function.

The explanation of appended drawing reference

The medical leak inspection device of 101-, 1011- cylindrical portion, 1012- visual confirmation window portion, 1013- main part, 1014- utricule component, 1014a- protruding portion, 1015- fluid injection inner cavity, 1016- exhaust inner cavity, 1017- outer peripheral surface, 1018- Space, 1019- bulge, the piping of 1022- utricule, 1023- tubular body, 1024- utricule connector, 1025- fluid injection connect Connect device, 1026- exhaust connector, the front side 1027- folded-back part, 1028- rear side folded-back part, 1029- connecting piece, 1034- exhaust Mouthful, 1039- liquid injection port, 1041- filler, 1042,1043- fogging suppression portion, 1043a- resin component, 1043b- air layer, 1051- downstream portion, 1052- main artery valve, 1053- coronary artery, 1054- main artery, 1060- metal wire, 1111- intercommunicating pore, 1140- protrusion, 1142- locating slot, the protrusion 1144-, 1151- fluid injection piping, 1161- exhaust piping, 201- is medical to be let out Leakage check device, 2011- cylindrical portion, 2012- visual confirmation window portion, 2013- main part, 2014- utricule component, 2014a- are prominent Portion out, 2015- fluid injection inner cavity, 2016- exhaust inner cavity, 2017- outer peripheral surface, the space 2018-, 2019- bulge, 2022- Utricule piping, 2023- tubular body, 2024- utricule connector, 2025- fluid injection connector, 2026- exhaust connector, Folded-back part on front side of 2027-, 2028- rear side folded-back part, 2029- connecting piece, 2034- exhaust outlet, 2039- liquid injection port, 2041- filling Agent, 2042- fogging suppression portion, 2042a- resin component, 2042b- air layer, 2051- downstream portion, 2052- main artery valve, 2053- coronary artery, 2054- main artery, 2060- metal wire, 2061- metal wire inner cavity, the stopper section 2070-, 2071- are prominent Portion, 2111- intercommunicating pore, 2121- tubular body are inserted into boss portion, 2122- utricule piping insertion boss portion, and 2131- tubular body is inserted Enter hole, 2132- utricule piping insertion hole, 2151- fluid injection piping, 2161- exhaust piping, the top end part 2221-.

Claims (26)

1. a kind of medical leak inspection device, has:

Main part has the visual confirmation window portion of cylindrical portion and the closing cylindrical portion that intercommunicating pore is formed in peripheral wall；

Utricule component, the outer peripheral surface along the cylindrical portion are arranged, and towards the lateral expansion of the cylindrical portion；

Utricule piping, for carrying out injection and discharge to the fluid between the utricule component and the cylindrical portion；And

Tubular body, be formed with for fluid injection inner cavity from the space fluid injection to the front of the visual confirmation window portion and for from The exhaust inner cavity of the aperture vents in the front of visual confirmation window portion.

2. medical leak inspection device according to claim 1, wherein

The end of the front side of the utricule component becomes the front side folded-back part rearward turned back, and the front side folded-back part is fixed on institute The outer peripheral surface other than the forming part of the intercommunicating pore of cylindrical portion is stated,

The end of the rear side of the utricule component becomes the rear side folded-back part turned back forwards, and the rear side folded-back part is fixed on institute State the outer peripheral surface other than the forming part of the intercommunicating pore of cylindrical portion.

3. medical leak inspection device according to claim 1 or 2, wherein

Be formed through the intercommunicating pore of peripheral wall in the cylindrical portion, the utricule piping the cylindrical portion inside with it is described Intercommunicating pore connection.

4. medical leak inspection device according to claim 2, wherein

In the outer peripheral surface of the utricule component, and the portion boundary portion shape except the front side folded-back part and front side folded-back part At there is protrusion.

5. medical leak inspection device according to claim 4, wherein

The protrusion is the cyclic rib circumferentially formed along the utricule component.

6. medical leak inspection device according to any one of claim 1 to 5, wherein

The inner peripheral surface of the utricule component is formed as rough surface.

7. medical leak inspection device according to any one of claim 1 to 6, wherein

The tubular body with the axis direction of the tubular body along the cylindrical portion axis direction and the tubular body relative to The state of the cylindrical portion bias is fixed on the visual confirmation window portion.

8. medical leak inspection device according to claim 7, wherein

The fixation position of utricule piping in the visual confirmation window portion is eccentric relative to the cylindrical portion, and institute State the fixation position of the tubular body in visual confirmation window portion and the distance between the fixation position of utricule piping Below diameter for the tubular body.

9. medical leak inspection device according to claim 7 or 8, wherein

Insert has metal wire in the tubular body.

10. medical leak inspection device according to any one of claim 1 to 9, wherein

Part on the outer peripheral surface as the utricule component and the outer peripheral surface positioned at the cylindrical portion is formed with protrusion or recessed At least one of portion.

11. medical leak inspection device according to claim 2, wherein

The cue mark portion for indicating the fixation position of the rear side folded-back part is provided with along the outer peripheral surface of the cylindrical portion.

12. medical leak inspection device according to any one of claim 1 to 10, wherein

If the distance from top to rear end of the utricule component after utricule component expansion is set as L1, by utricule component Outer diameter before expansion is set as D01, the outer diameter after the expansion of utricule component is set as D11, then becomes D01/L1 >=2.0 and D11/D01 ≥1.6。

13. a kind of medical leak inspection device, has:

Main part, the visual confirmation window portion with cylindrical portion and the closing cylindrical portion, and pass through the cylindrical portion and described Visual confirmation is formed with recess portion in front with window portion；

Utricule component, the outer peripheral surface along the cylindrical portion are arranged, and the direction and importing fluid between the cylindrical portion The lateral expansion of the cylindrical portion；And

Tubular body, be formed with for fluid injection inner cavity from the space fluid injection to the front of the visual confirmation window portion and for from The exhaust inner cavity of the aperture vents in the front of visual confirmation window portion.

14. medical leak inspection device according to claim 13, wherein

It is located at and the visual confirmation window portion with the front end of the front end of fluid injection inner cavity and exhaust inner cavity The position that flushes of front surface or the position positioned at the more rearward side of front surface than the visual confirmation window portion mode structure At.

15. medical leak inspection device described in 3 or 14 according to claim 1, wherein

In the visual confirmation window portion, the exhaust is configured at than the fluid injection inner cavity with inner cavity closer to the cylindrical portion Peripheral wall position.

16. medical leak inspection device described in any one of 3 to 15 according to claim 1, wherein

There is the visual confirmation window portion tubular body insertion hole for inserting the tubular body and the covering tubular body to be inserted into hole Front openings portion a part stopper section,

It is abutted in the front end that the tubular body is inserted through tubular body insertion hole and the tubular body with the stopper section Under state, the front end of fluid injection inner cavity and the front end of exhaust inner cavity are located at and the visual confirmation window portion Front the position that flushes of front surface or position positioned at the more rearward side of front surface than the visual confirmation window portion.

17. medical leak inspection device described in any one of 3 to 16 according to claim 1, wherein

The tubular body with the axis direction of the tubular body along the cylindrical portion axis direction and the tubular body relative to The state of the cylindrical portion bias is fixed on the cylindrical portion.

18. medical leak inspection device described in any one of 3 to 17 according to claim 1, wherein

The medical leak inspection device is also equipped with:

Utricule piping, for carrying out injection and discharge to the fluid between the utricule component and the cylindrical portion,

Be formed through the intercommunicating pore of peripheral wall in the cylindrical portion, the utricule piping from the inside of the cylindrical portion with it is described Intercommunicating pore connection,

The fixation position of utricule piping in the visual confirmation window portion is eccentric relative to the cylindrical portion, and institute State the fixation position of the tubular body in visual confirmation window portion and the distance between the fixation position of utricule piping Below diameter for the tubular body.

19. medical leak inspection device described in any one of 3 to 18 according to claim 1, wherein

Insert has metal wire in the tubular body.

20. according to claim 1 to medical leak inspection device described in any one of 19, wherein

The visual confirmation window portion contains the filler with thermal insulation.

21. according to claim 1 to medical leak inspection device described in any one of 19, wherein

Inhibition is provided with by the fogging suppression portion caused by moisture condensation to haze with window portion in the visual confirmation.

22. medical leak inspection device according to claim 21, wherein

The fogging suppression portion is to be formed and at least part to the visual confirmation window portion implements hydrophily processing Position.

23. medical leak inspection device according to claim 21, wherein

The fogging suppression portion is that the antifoggant for including at least ethyl alcohol and surfactant is coated on the visual confirmation window Portion and the position formed.

24. the medical leak inspection device according to any one of claim 21 to 23, wherein

The fogging suppression portion is set to the rear side of the visual confirmation window portion.

25. medical leak inspection device according to claim 21, wherein

The fogging suppression portion has the transparent tree with the high thermal insulation of the material than constituting the visual confirmation window portion Rouge component,

The resin component is arranged in a manner of covering the visual confirmation window portion.

26. medical leak inspection device according to claim 21, wherein

The fogging suppression portion by be formed in the resin component being arranged in a manner of covering the visual confirmation window portion with it is described Air layer between visual confirmation window portion is constituted.