CN114768065A

CN114768065A - Injection device for oviduct radiography

Info

Publication number: CN114768065A
Application number: CN202210399184.8A
Authority: CN
Inventors: 张红彬; 栗河舟
Original assignee: Zhengzhou University Third Affiliated Hospital Henan Maternity and Child Health Care Hospital
Current assignee: Zhengzhou University Third Affiliated Hospital Henan Maternity and Child Health Care Hospital
Priority date: 2022-04-16
Filing date: 2022-04-16
Publication date: 2022-07-22
Anticipated expiration: 2042-04-16
Also published as: CN114768065B

Abstract

The utility model belongs to the technical field of medical instrument and specifically relates to an injection apparatus for oviduct radiography and specifically relates to a device comprises a pipe body, this internal radiography passageway that is provided with of pipe, be provided with on the pipe body and insert end and injection end, this internal gas storage chamber way that is used for holding gas that is provided with of pipe, gas storage chamber way is extended to inserting the end by the injection end of pipe body, the tip that the pipe body is close to the injection end is provided with and is used for the gas storage chamber way gas filled subassembly. In this application, can make the pipe body straighten and be difficult for bending through letting in gas in saying to the gas storage chamber, it is more convenient that medical personnel insert the pipe body in patient's palace chamber to make medical personnel more convenient when carrying out the contrast medium injection operation.

Description

Injection device for oviduct radiography

Technical Field

The invention relates to the field of medical instruments, in particular to an injection device for salpingography.

Background

The salpingography is a method for examining whether the oviduct is unobstructed, the blocked part and the shape of the uterine cavity by injecting a contrast agent into the uterine cavity and the oviduct and utilizing X-ray fluoroscopy and radiography and according to the developing condition of the contrast agent in the oviduct and the pelvic cavity. When the contrast agent is injected, a patient lies on the back on an examination bed, medical staff needs to insert a catheter into a uterine cavity from the vaginal orifice of the patient, a contrast agent channel and an air sac channel are arranged in the catheter, the contrast agent channel is used for injecting the contrast agent, and one end of the air sac channel is communicated with a spherical air sac; in a specific operation, a medical staff needs to fix the cervix of a patient firstly, then clamp the end part of the catheter close to the saccule by using forceps, slowly put the catheter into the body of the patient, and then inject a sterile solution into a channel of the air sac in the catheter so as to swell, so that one end of the catheter is fixed in the body of the patient, and the medical staff can perform the operation of injecting the contrast medium into the catheter.

In the whole operation process of placing the catheter, medical staff need hold the catheter with one hand and hold the forceps with the other hand, and other medical staff need help when needing to perform other operations, so that the operation is troublesome.

Disclosure of Invention

To facilitate a medical practitioner's insertion of a catheter into a patient's uterine cavity, the present application provides an injection device for salpingography.

The application provides an injection device for salpingography adopts following technical scheme:

the utility model provides an injection apparatus for oviduct radiography, includes the pipe body, this internal radiography passageway that is provided with of pipe, be provided with on the pipe body and insert end and injection end, this internal gas storage chamber way that is used for holding gas that is provided with of pipe, the gas storage chamber way is extended to inserting the end by the injection end of pipe body, the tip that the pipe body is close to the injection end is provided with and is used for the gas filled subassembly of aerifing of gas storage chamber way.

Through adopting above-mentioned technical scheme, the subassembly of aerifing is used for aerifing the gas storage chamber way, and when being full of gas in the gas storage chamber way, the pipe body is whole to become straight, and is difficult for bending, and medical personnel need not can insert the patient internal with the help of tweezers with the pipe body, and it is comparatively convenient to operate.

Optionally, the inflation assembly includes the connection bag that is used for connecting the gas storage chamber way and is used for the gas cell of aerifing the connection bag through the mode of pressing, be provided with between connection bag and the gas cell and be used for blockking the adjustment mechanism that the gas in the connection bag outwards flows out.

Through adopting above-mentioned technical scheme, medical personnel press the gas cell and can aerify the connection bag, and the gas in the connection bag gets into in the gas storage chamber way to accomplish the process of aerifing of gas storage chamber way, simultaneously under adjustment mechanism's effect, the gas in the gas storage chamber way can't flow into the gas cell, thereby makes the gas in the gas storage chamber way can be preserved.

Optionally, the adjusting mechanism includes a connecting pipeline, the connecting pipeline includes an adjusting pipe and a sealing pipe which are communicated with each other, the adjusting pipe is connected with the inflatable bag, and the sealing pipe is connected with the connecting bag; the utility model discloses a gas cell, including adjusting pipe, sealed piece, regulating pipe inner wall, regulating pipe, sealed piece one end and sealed piece two, the regulating pipe inner wall is provided with regulating strip one and regulating strip two relatively, be provided with sealed piece one and the sealed piece two of mutual sealed complex in the sealed pipe, the regulating strip one end is connected with sealed piece one, and the other end extends to the gas cell along the length direction of regulating pipe, two one end of regulating strip are connected with sealed piece two, and the other end extends to the gas cell along the length direction of regulating pipe, the cover is equipped with the holding ring on the regulating pipe.

By adopting the technical scheme, the inflatable bag and the connecting bag are communicated with each other through the regulating tube and the sealing tube, when the regulating strip I and the regulating strip II are in a natural state, the sealing block I and the sealing block II are matched with each other and sealed, and gas cannot flow between the inflatable bag and the connecting bag. The positioning ring is arranged on the adjusting pipe in a surrounding mode, the shape of the position, contacted with the positioning ring, of the adjusting pipe is limited by the positioning ring, and the shape of the adjusting pipe is fixed relative to other positions of the adjusting pipe, so that a lever phenomenon is formed between the first adjusting strip and the second adjusting strip relative to the positioning ring, namely the first adjusting strip and the second adjusting strip can rotate by taking the positioning ring as a fulcrum; when medical personnel pressed the suitable position on the gas cell, the gas cell took place deformation and can be applyed the effort that makes the two be close to each other to the one end that the sealed tube was kept away from to regulation strip one and regulation strip two to make the one end that regulation strip one and regulation strip two are close to the sealed tube keep away from each other, thereby drive sealed piece one and sealed piece two and keep away from each other and the gap appears, in gaseous can be by the gas cell access connection bag, in order to realize carrying out gas filled process to gas storage chamber way.

Optionally, the regulating tube is the toper, and is the state of shrinking gradually by gas cell to sealed tube, regulation strip one and regulation strip two all set up along the incline direction slope of regulating tube inner wall and the two is close to gradually along the direction of keeping away from the gas cell.

Through adopting above-mentioned technical scheme, the interval of position control strip one and regulation strip two near the gas cell is great, and when medical personnel pressed the gas cell, the one end that gas cell was kept away from to regulation strip one and regulation strip two was kept away from each other more easily. In addition, one ends, close to the sealing tube, of the first adjusting strip and one ends, close to the sealing tube, of the second adjusting strip are gradually close to each other, so that the first adjusting strip is more favorably connected with the first sealing block, and the second adjusting strip is connected with the second sealing block.

Optionally, a plurality of reinforcing strips are arranged on the outer wall of the adjusting pipe at intervals, and the reinforcing strips extend along the length direction of the adjusting pipe.

Through adopting above-mentioned technical scheme, the lateral wall that the regulation pipe can be strengthened to the enhancement strip to when making medical personnel apply the effort to the one end that regulation strip one and regulation strip two are close to the gas cell and make the two be close to each other, the one end that the gas cell was kept away from to regulation strip one and regulation strip two is kept away from each other thereupon more easily.

Optionally, the first sealing block and the second sealing block are both provided with a protrusion and a sealing groove, the protrusion on the first sealing block is matched with the sealing groove on the second sealing block, and the protrusion on the second sealing block is matched with the sealing groove on the first sealing block.

Through adopting above-mentioned technical scheme, sealed piece one and sealed piece two are mutually supported through sealed recess and arch, and the area of contact of sealed piece one and sealed piece two is bigger, and stability is higher to the seal is better.

Optionally, a pressing strip for indicating a pressing position is arranged on the outer wall of the inflatable bag.

Through adopting above-mentioned technical scheme, because regulation strip one and regulation strip two relative settings, the personnel need press suitable position on the gas cell, can make regulation strip one and regulation strip two be close to each other through the deformation of gas cell, can press the layering through the setting and can indicate medical personnel to make and press the position more accurate.

Optionally, the gas storage cavity comprises a first cavity and a second cavity, projections of the first cavity and the second cavity on the cross section of the catheter body are arranged at intervals, the first cavity and the second cavity are arranged at intervals along the length direction of the catheter body in a staggered manner, and the first cavity and the second cavity which are arranged adjacently are communicated with each other.

By adopting the technical scheme, because the gas storage cavity channel is extended and arranged on the whole catheter body, if the gas storage cavity channel occupies a larger volume, the strength of the side wall of the catheter body is influenced, or the external diameter of the catheter body needs to be increased; if the occupied volume of the gas storage cavity channel is small, the effect of straightening the catheter body by the gas in the gas storage cavity channel is small, so that the possibility of bending the catheter body is high; the gas storage cavity channel is formed by the first cavity channel and the second cavity channel, the first cavity channel is located at different positions along the circumferential direction of the catheter body, the first cavity channels and the second cavity channels are arranged in a staggered and communicated mode, the gas storage cavity channels are enabled to be more evenly distributed on the catheter body when the gas storage cavity channels are enabled to be appropriate in size, and when gas is filled in the gas storage cavity channels, the straightening effect of the catheter body is better.

Optionally, a plurality of first channels arranged along the length direction of the catheter body are in a group, a plurality of second channels arranged along the length direction of the catheter body are in a group, the first channels and the second channels are oppositely arranged in two groups along the circumferential direction of the catheter body by taking the group as a unit, and projection patterns of the two groups of first channels and the two groups of second channels on the cross section of the catheter body are uniformly arranged at intervals along the circumferential direction of the catheter body.

Through adopting above-mentioned technical scheme, two sets of first chamber says and two sets of second chamber says alternately sets up along the circumferencial direction of pipe body for a plurality of first chamber says and the distribution of second chamber way on the pipe body is more even.

Optionally, an exhaust assembly for exhausting the air storage cavity is arranged on the connecting bag.

By adopting the technical scheme, after the catheter body is inserted into the uterine cavity of a patient and fixed by medical personnel, the connecting bag can be communicated with the outside through the exhaust assembly, so that gas in the gas storage cavity is discharged, the catheter body is restored to the state of easy bending, and the subsequent operation is facilitated; meanwhile, the catheter body is in a state of being easy to bend, and medical staff can take out the catheter body more conveniently.

Drawings

Fig. 1 is a schematic view of the overall structure of an injection device for oviduct angiography according to an embodiment of the present application.

FIG. 2 is a schematic view of the embodiment of the present application showing the inflation assembly in cross section along the axis of the catheter body.

Fig. 3 is a schematic view of a cut-away internal structure of a catheter body in an embodiment of the present application.

Figure 4 is a schematic cross-sectional view of a catheter body in an embodiment of the present application.

Fig. 5 is a schematic view of the internal structure of the connecting pipe (to show the adjusting assembly) in the embodiment of the present application.

Fig. 6 is a schematic cross-sectional view of an adjustment tube in an embodiment of the present application.

FIG. 7 is a schematic view of the mounting of the vent assembly to the connecting bladder in an embodiment of the present application.

Description of the reference numerals: 1. a catheter body; 11. an air storage cavity channel; 111. a first channel; 112. a second channel; 12. an imaging channel; 13. a balloon channel; 15. an inflation inlet; 21. a radiography tube; 22. a balloon tube; 221. a balloon; 3. an inflation assembly; 31. a connecting bag; 32. an air-filled bag; 321. an air intake portion; 3211. an air inlet; 322. a pressing part; 3221. pressing the pressing strip; 323. a connecting portion; 4. connecting a pipeline; 41. an adjusting tube; 411. a ring groove; 42. sealing the tube; 5. an adjustment assembly; 51. a first adjusting strip; 52. a second adjusting strip; 53. a first sealing block; 531. a sealing surface; 532. a mounting surface; 533. sealing the groove; 534. a protrusion; 54. a second sealing block; 6. a positioning ring; 7. a reinforcing strip; 8. an exhaust assembly; 81. a cylinder body; 811. an exhaust hole; 82. a control lever; 83. a sealing ball; 84. a baffle plate; 85. an elastic member.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses an injection device for salpingography. Referring to fig. 1 to 3, an injection device for oviduct radiography comprises a catheter body 1, wherein an air storage cavity channel 11 is arranged in the catheter body 1 along the length direction of the catheter body, air is filled into the air storage cavity channel 11, the strength of the catheter body 1 is increased under the action of the air in the air storage cavity channel 11, and the catheter body is not easy to bend, so that medical workers can directly insert the catheter into a uterine cavity of a patient, and the injection operation of a contrast agent is more convenient.

Referring to fig. 1 and 3, the catheter body 1 may be disposed on a three-lumen two-balloon catheter or other catheters that can be used for injecting a contrast medium. One end of the catheter body 1 is an insertion end, the other end is an injection end, the insertion end is used for being inserted into a uterine cavity of a patient, and the injection end is used for injecting a contrast medium; an angiography channel 12 and a balloon channel 13 are arranged in the catheter body 1, the cross section of the angiography channel 12 is semicircular and is coaxially arranged with the catheter body 1, the cross section of the balloon channel 13 is also semicircular and is coaxially arranged with the catheter body 1, and the cross sections of the angiography channel 12 and the balloon channel 13 form a complete circle; the injection end is provided with a contrast tube 21 and a sacculus tube 22 which are respectively communicated with the contrast channel 12 and the sacculus channel 13; one end of the contrast passage 12 close to the insertion end is communicated with the outside through a plurality of openings, the catheter body 1 is inserted into the uterine cavity of a patient, contrast agent is injected into the contrast passage 12 through the contrast tube 21, and the contrast agent flows out from the opening on the insertion end and can be injected into the uterine cavity of the patient.

Referring to fig. 1 and 3, a balloon 221 is arranged at a position of the catheter body 1 close to the insertion end, and the balloon 221 is spherical and is communicated with the balloon channel 13; a marking line is arranged at the position of the catheter body 1 close to the injection end and is used for marking the length of the catheter body 1 inserted into the uterine cavity of a patient; after the catheter body 1 is inserted into the uterine cavity of a patient, air or sterile solution is injected into the balloon channel 13 through the balloon tube 22, so that the balloon 221 can be expanded and clamped in the uterine cavity of the patient, and the possibility that the catheter body 1 falls out of the patient is reduced.

Referring to fig. 3 and 4, the gas storage channel 11 is disposed outside the contrast channel 12 and the balloon channel 13, and the gas storage channel 11 includes a first channel 111 and a second channel 112; the first cavity 111 extends along the length direction of the catheter body 1, the cross section of the first cavity 111 is in the shape of an arc groove, the first cavity is arranged coaxially with the catheter body 1, the first cavity 111 is uniformly arranged along the length direction of the catheter body 1 at intervals, the first cavity 111 arranged along the length direction of the catheter body 1 is a group, the first cavity 111 is provided with two groups, and the two groups of first cavities 111 are oppositely arranged along the circumference direction of the catheter body 1; the second channels 112 and the first channels 111 have the same shape and size, the second channels 112 are uniformly arranged at intervals along the length direction of the catheter body 1, the second channels 112 arranged along the length direction of the catheter body 1 form a group, the second channels 112 are arranged in two groups, and the two groups of second channels 112 are oppositely arranged along the circumferential direction of the catheter body 1; the projections of the two groups of first channels 111 and the two groups of second channels 112 on the cross section of the catheter body 1 are four arc-shaped grooves which are uniformly arranged at intervals along the circumferential direction of the catheter body 1; the first channels 111 and the second channels 112 are arranged in a staggered manner along the length direction of the catheter body 1, and the adjacent first channels 111 and second channels 112 along the length direction of the catheter body 1 are communicated, so that the plurality of first channels 111 and second channels 112 are communicated with each other; the plurality of first channels 111 and the plurality of second channels 112 extend from the injection end to the insertion end, and the gas in the two corresponding first channels 111 or the second channels 112 along the circumferential direction of the catheter body 1 can better support the catheter body 1, and can reduce the influence of the arrangement of the gas storage channels 11 on the strength of the side wall of the catheter body 1. In this embodiment, the two first channels 111 near the injection end are opened outwards from the end surface of the catheter body 1 to form two arc-shaped inflation ports 15, and gas can be introduced into the gas storage channel 11 through the two inflation ports 15, so as to increase the strength of the catheter body 1.

Referring to fig. 2 and 3, in order to facilitate inflation into the gas storage channel 11, an inflation assembly 3 is arranged at the injection end of the catheter body 1, the inflation assembly 3 comprises a connecting bag 31 and an inflation bag 32, the connecting bag 31 is made of rubber, the connecting bag 31 is in a spherical cavity structure, a sealing sleeve is arranged at the connecting position of the injection end and the radiography tube 21, and the two inflation ports 15 are both communicated with the inner cavity of the connecting bag 31; referring to fig. 1, the radiography tube 21 and the balloon tube 22 have one end located inside the connection bag 31 and the other end extending out of the connection bag 31, the catheter body 1, the radiography tube 21, the balloon tube 22 and the connection bag 31 are all sealed and connected in a bonding manner, and the connection bag 31 is inflated to inflate the air storage channel 11.

Referring to fig. 2 and 3, the airbag 32 has a cavity structure, the airbag 32 is made of rubber, the airbag 32 includes an air inlet portion 321, a pressing portion 322 and a connecting portion 323, the air inlet portion 321 and the connecting portion 323 are both hemispherical, the pressing portion 322 is cylindrical, the air inlet portion 321 and the connecting portion 323 are respectively disposed at two ends of the pressing portion 322, and spherical centers of the hemispherical air inlet portion 321 and the hemispherical connecting portion 323 are both located on an axis of the cylindrical pressing portion 322; the air inlet portion 321 is provided with a circular air inlet 3211, an axis of the air inlet 3211 intersects an axis of the pressing portion 322, the two axes are arranged at an angle, air can directly enter the air bag 32 through the air inlet 3211, and the air inlet 3211 is fixedly provided with a check valve, so that air can enter the air bag 32 and is not easy to flow out through the air inlet 3211 by the air bag 32. The inflatable bag 32 is communicated with the connecting bag 31, and medical personnel can inflate the connecting bag 31 by pressing the inflatable bag 32, so that the function of inflating the air storage cavity 11 is realized.

Referring to fig. 2 and 5, an adjusting mechanism is arranged between the air bag 32 and the connecting bag 31, the adjusting mechanism is used for assisting the air bag 32 to inflate into the connecting bag 31, and the adjusting mechanism comprises a connecting pipeline 4 and an adjusting assembly 5 arranged in the connecting pipeline 4; the connecting pipeline 4 comprises an adjusting pipe 41 and a sealing pipe 42 which are communicated with each other and integrally arranged, the adjusting pipe 41 and the sealing pipe 42 are both made of rubber materials, the adjusting pipe 41 is a conical pipe, the large end of the adjusting pipe 41 is fixed on the connecting part 323 in an adhesive mode, a through hole for communicating the adjusting pipe 41 is formed in the connecting part 323, and the small end of the adjusting pipe 41 extends in the direction away from the connecting part 323; sealed tube 42 one end is connected with the tip of regulating tube 41, and the other end is fixed in connecting bag 31 outer wall with sticky mode, also corresponds to offer the through-hole that is used for communicateing sealed tube 42 on the connecting bag 31 outer wall, and gas cell 32 and connecting bag 31 can communicate each other through connecting tube 4.

Referring to fig. 5, when the large end of the adjusting tube 41 is bonded to the outer wall of the connecting portion 323, a groove may be formed in the outer wall of the connecting portion 323, and the large end of the adjusting tube 41 is embedded into the groove and then bonded, so that the sealing property between the adjusting tube 41 and the connecting portion 323 is better, and the connection between the sealing tube 42 and the connecting bag 31 and other positions needing to be bonded to each other in this embodiment may be bonded in the same manner. The adjusting pipe 41 and the outer wall of the connecting portion 323 may be directly bonded.

Referring to fig. 5 and 6, the regulating assembly 5 is used for preventing gas from entering the air-filled bag 32 from the connecting bag 31, the regulating assembly 5 comprises a regulating strip one 51, a regulating strip two 52, a sealing block one 53 and a sealing block two 54, the regulating strip one 51 and the regulating strip two 52 are both arranged in the regulating tube 41, and the sealing block one 53 and the sealing block two 54 are both arranged in the sealing tube 42; the first adjusting strip 51 and the second adjusting strip 52 are both made of rubber materials, the first adjusting strip 51 is obliquely arranged along the length direction of the adjusting pipe 41 in an extending mode, the first adjusting strip 51 is fixed on the inner wall of the adjusting pipe 41 in an adhesive mode, the cross section of the first adjusting strip 51 is a closed figure formed by minor arcs and chords, and the arc surface formed by the minor arcs on the first adjusting strip 51 is attached to the inner wall of the adjusting pipe 41 and is coaxially arranged with the adjusting pipe 41; the structure and the size of the second adjusting strip 52 are the same as those of the first adjusting strip 51, the second adjusting strip 52 is opposite to the first adjusting strip 51, the second adjusting strip 52 is also fixed on the inner wall of the adjusting pipe 41 in an adhesion mode, the first adjusting strip 51 and the second adjusting strip 52 are gradually close to each other along the direction far away from the inflatable bag 32, and gas can pass through the space between the first adjusting strip 51 and the second adjusting strip 52.

Referring to fig. 5, the first sealing block 53 and the second sealing block 54 are matched with each other, the first sealing block 53 is plate-shaped, one side surface of the first sealing plate is an arc surface and is coaxially arranged with the sealing tube 42, and the arc surface of the first sealing plate is connected with the inner wall of the sealing tube 42 in a bonding manner, so that the first sealing plate is fixed in the sealing tube 42; the side surface of the first sealing block 53, which is close to the axis of the sealing tube 42, is S-shaped, so that a circular arc-shaped sealing groove 533 and a circular arc-shaped protrusion 534 are formed, the S-shaped side surface of the first sealing block 53 is a sealing surface 531, the circular arc surface of the first sealing plate, which is attached to the inner wall of the sealing tube 42, is an installation surface 532, and two ends of the installation surface 532 are tangent to two ends of the sealing surface 531 respectively; the structure and the size of the sealing block II 54 are the same as those of the sealing block I53, the sealing block II 54 is also fixed on the inner wall of the sealing pipe 42 in a bonding mode, the sealing block I53 and the sealing block II 54 are oppositely arranged, the bulge 534 of the sealing block I53 is embedded in the sealing groove 533 of the sealing block II 54 in a matching mode, the bulge 534 of the sealing block II 54 is embedded in the sealing groove 533 of the sealing block I53 in a matching mode, and the sealing block I53 and the sealing block II 54 are matched with each other to form a complete circular plate shape, so that the matching position of the sealing block I53 and the sealing block II 54 is stable, good airtightness is achieved, and gas can be blocked.

Referring to fig. 5 and 6, a first sealing block 53 is integrally formed with an end of the first adjusting strip 51 close to the sealing tube 42, and a second sealing block 54 is integrally formed with an end of the second adjusting strip 52 close to the sealing tube 42; when the medical staff applies acting force to one ends of the first adjusting strip 51 and the second adjusting strip 52 close to the inflatable bag 32, in order to enable one ends of the first adjusting strip 51 and the second adjusting strip far away from the inflatable bag 32 to drive the first sealing block 53 and the second sealing block 54 to move relatively, the positioning ring 6 is sleeved on the outer side wall of the adjusting tube 41; the positioning ring 6 is made of hard plastic, a ring groove 411 is formed in the outer side wall of the adjusting pipe 41, the positioning ring 6 is embedded in the ring groove 411, and the positioning ring 6 is arranged in the middle of the adjusting pipe 41 along the axis direction of the positioning ring; when the medical staff applies an acting force to enable one ends, close to the inflatable bag 32, of the first adjusting strip 51 and one ends, far away from the inflatable bag 32, of the second adjusting strip 52 and the first adjusting strip 51 to be far away from each other, so that the first sealing block 53 and the second sealing block 54 are driven to be far away from each other, and a gap through which gas can pass is formed between the first sealing block 53 and the second sealing block 54. Specifically, since the distance between the position where the sealing surface 531 forms the sealing groove 533 and the mounting surface 532 is small, when the first sealing block 53 and the second sealing block 54 are moved away from each other by the first adjustment strip 51 and the second adjustment strip 52, the position where the first sealing block 53 and the second sealing block 54 are thin is more easily deformed, thereby forming a gap between the first sealing block 53 and the second sealing block 54.

Referring to fig. 5 and 6, in order to increase the hardness of the adjusting tube 41, so that the ends of the adjusting strips one 51 and two 52, which are far away from the air bag 32, can change along with the positions of the ends of the adjusting strips one 51 and two 52, which are close to the air bag 32, a plurality of reinforcing strips 7 are arranged outside the adjusting tube 41, the reinforcing strips 7 extend along the length direction of the adjusting tube 41 and are fixed on the outer side wall of the adjusting tube 41 in an adhesion manner, the reinforcing strips 7 are uniformly arranged at intervals along the circumferential direction of the adjusting tube 41, and the reinforcing strips 7 are made of hard plastics, so that the strength of the adjusting tube 41 can be enhanced.

Referring to fig. 2 and 5, in order to facilitate medical personnel to discern the direction of the force exerted on adjustment bar one 51 and adjustment bar two 52, the outer side wall of the pressing portion 322 of the inflatable bag 32 is provided with a plurality of pressing strips 3221, the pressing strips 3221 are arranged in an arc-shaped extension along the circumferential direction of the pressing portion 322, the pressing strips 3221 are uniformly arranged along the axial direction of the pressing portion 322 at intervals, one group of the pressing strips 3221 is arranged along the axial direction of the pressing portion 322, two groups of the pressing strips 3221 are oppositely arranged on the outer side wall of the pressing portion 322, the two groups of the pressing strips 3221 are respectively arranged corresponding to the first adjusting strip 51 and the second adjusting strip 52, and medical staff can deform the inflatable bag 32 by pressing the positions of the two groups of the pressing strips 3221 at the same time, thereby bringing the positions where the first and second adjustment strips 51 and 52 are connected to the airbag 32 close to each other so that a gap is formed between the first and second seal blocks 53 and 54.

Referring to fig. 2 and 7, in order to facilitate the air exhaust of the air storage cavity 11, an air exhaust assembly 8 is disposed on the connecting bag 31, the air exhaust assembly 8 includes a cylinder 81 and a control rod 82, and the cylinder 81 and the control rod 82 are made of hard plastic; the cylinder 81 is in a cylindrical cavity structure and fixedly arranged on the side wall of the connecting bag 31 in a penetrating way in a bonding way, the axis of the cylinder 81 passes through the spherical center of the connecting bag 31, the end surface of the cylinder 81 positioned outside the connecting bag 31 is in a closed state, and one end positioned inside the connecting bag 31 is provided with a conical opening; the side wall of the cylinder 81 outside the connecting bag 31 is provided with a plurality of air vents 811, the air vents 811 are uniformly spaced along the circumferential direction of the cylinder 81, and the air in the connecting bag 31 can be exhausted from the inside of the cylinder 81 through the air vents 811.

Referring to fig. 7, the control rod 82 is slidably inserted into the end surface of the cylinder 81 outside the connecting bag 31, and the diameter of the end of the control rod 82 outside the cylinder 81 is increased to prevent the control rod 82 from being disconnected from the cylinder 81 when sliding into the cylinder 81; one end of the control rod 82 extends into the connecting bag 31 and is fixedly connected with the sealing ball 83, the sealing ball 83 is made of rubber, and when the control rod 82 slides out of the connecting bag 31, the sealing ball 83 can be tightly attached to the inner wall of the conical opening in the cylinder 81, so that gas in the connecting bag 31 is blocked from flowing out. A blocking piece 84 is fixedly sleeved on the control rod 82, the blocking piece 84 is in sliding fit with the cylinder 81, a through hole is formed in the blocking piece 84, and gas can be exhausted from the exhaust hole 811 through the through hole; an elastic part 85 is arranged between the baffle piece 84 and the end wall of the cylinder 81 outside the connecting bag 31, the elastic part 85 is a spring, the spring is sleeved on the control rod 82, one end of the spring is fixedly connected with the baffle piece 84, the other end of the spring is fixedly connected with the cylinder 81, and the spring is in a stretching state, namely the spring exerts force on the baffle piece 84 towards the outside of the connecting bag 31, so that the sealing ball 83 is tightly attached to the conical side wall of the cylinder 81; when the air storage cavity 11 needs to be deflated, the medical staff presses the control rod 82 into the cylinder 81, so that a gap is formed between the sealing ball 83 and the conical opening of the cylinder 81, and the air in the connecting bag 31 can be exhausted through the air exhaust hole 811.

The implementation principle of the injection device for salpingography in the embodiment of the application is as follows: before the catheter is placed into the uterine cavity of the patient, the medical staff presses the inflatable bag 32 through the indicating position of the pressing strip 3221 on the inflatable bag 32, so that the ends, connected with the inflatable bag 32, of the first adjusting strip 51 and the second adjusting strip 52 are close to each other, and one end, far away from the inflatable bag 32, of the first adjusting strip 51 and the second adjusting strip 52 respectively drives the first sealing block 53 and the second sealing block 54 to move in the directions far away from each other, so that a gap is formed between the first sealing block 53 and the second sealing block 54, and gas in the inflatable bag 32 enters the connecting bag 31 through the gap between the first sealing block 53 and the second sealing block 54 and further enters the gas storage cavity channel 11 through the gas filling port 15 to fill the gas storage cavity channel 11; the medical staff can make the gas fill the gas storage cavity channel 11 by pressing the gas-filled bag 32 for many times, thereby increasing the strength of the catheter body 1, so that the medical staff can insert the catheter body 1 into the patient, after fixing the catheter body 1 in the uterine cavity of the patient, the gas in the gas storage cavity channel 11 is discharged through the exhaust component 8, and then the contrast agent can be injected into the patient through the contrast tube 21; in this embodiment, medical personnel need not with the help of tweezers when inserting patient's palace intracavity with pipe body 1, and is more convenient.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an injection apparatus for oviduct radiography, includes pipe body (1), be provided with radiography passageway (12) in pipe body (1), be provided with on pipe body (1) and insert end and injection end, its characterized in that: the gas storage cavity channel (11) used for containing gas is arranged in the catheter body (1), the gas storage cavity channel (11) extends from the injection end of the catheter body (1) to the insertion end, and an inflation assembly (3) used for inflating the gas storage cavity channel (11) is arranged at the end part, close to the injection end, of the catheter body (1).

2. The oviduct contrast injection device of claim 1, wherein: the inflation assembly (3) comprises a connecting bag (31) used for connecting the gas storage cavity (11) and an inflation bag (32) used for inflating the connecting bag (31) in a pressing mode, and an adjusting mechanism used for blocking gas in the connecting bag (31) from flowing outwards is arranged between the connecting bag (31) and the inflation bag (32).

3. The oviduct contrast injection device of claim 2, wherein: the adjusting mechanism comprises a connecting pipeline (4), the connecting pipeline (4) comprises an adjusting pipe (41) and a sealing pipe (42) which are communicated with each other, the adjusting pipe (41) is connected with the inflatable bag (32), and the sealing pipe (42) is connected with the connecting bag (31); the utility model discloses a pneumatic air compressor, including adjusting pipe (41), sealing tube (42), sealing tube (41) inner wall, be provided with the sealed piece (53) and the sealed piece (54) of mutual sealed complex in the sealing tube (42) relatively, adjusting strip (51) one end is connected with sealed piece (53), and the other end extends to gas cell (32) along the length direction of adjusting pipe (41), adjusting strip two (52) one end is connected with sealed piece two (54), and the other end extends to gas cell (32) along the length direction of adjusting pipe (41), the cover is equipped with holding ring (6) on adjusting pipe (41).

4. The oviduct contrast injection device of claim 3, wherein: the adjusting pipe (41) is conical, and is gradually contracted from the inflating bag (32) to the sealing pipe (42), and the first adjusting strip (51) and the second adjusting strip (52) are obliquely arranged along the oblique direction of the inner wall of the adjusting pipe (41) and are gradually close to each other along the direction away from the inflating bag (32).

5. The oviduct contrast injection device of claim 3, wherein: the adjusting pipe (41) is characterized in that a plurality of reinforcing strips (7) are arranged on the outer wall of the adjusting pipe (41) at intervals, and the reinforcing strips (7) extend along the length direction of the adjusting pipe (41).

6. The oviduct contrast injection device of claim 3, wherein: the sealing block I (53) and the sealing block II (54) are respectively provided with a bulge (534) and a sealing groove (533), the bulge (534) on the sealing block I (53) is matched with the sealing groove (533) on the sealing block II (54), and the bulge (534) on the sealing block II (54) is matched with the sealing groove (533) on the sealing block I (53).

7. The oviduct contrast injection device of claim 3, wherein: the outer wall of the inflatable bag (32) is provided with a pressing strip (3221) for indicating a pressing position.

8. The oviduct contrast injection device of any of claims 1-7, wherein: the gas storage chamber way (11) includes first chamber way (111) and second chamber way (112), first chamber way (111) and second chamber way (112) all are provided with a plurality ofly along the length direction interval of pipe body (1), first chamber way (111) and second chamber way (112) are at the projection interval setting on pipe body (1) cross section, and are a plurality of first chamber way (111) and a plurality of second chamber way (112) are arranged along the length direction looks alternate of pipe body (1) and are set up, and first chamber way (111) and second chamber way (112) that adjacent set up communicate each other.

9. The oviduct contrast injection device of claim 8, wherein: a plurality of first chamber ways (111) of arranging along pipe body (1) length direction are a set of, and a plurality of second chamber ways (112) of arranging along pipe body (1) length direction are a set of, first chamber way (111) and second chamber way (112) all set up two sets of with group as unit along the circumferencial direction of pipe body (1) relatively, and two sets of first chamber ways (111) and two sets of second chamber ways (112) are evenly spaced apart along the circumferencial direction of pipe body (1) in the projection figure on pipe body (1) cross section.

10. The oviduct contrast injection device of claim 2, wherein: and an exhaust assembly (8) for exhausting the air storage cavity (11) is arranged on the connecting bag (31).