CN209361614U - A kind of double sacculus perfusion conduits of interval adjustable - Google Patents
A kind of double sacculus perfusion conduits of interval adjustable Download PDFInfo
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- CN209361614U CN209361614U CN201821437713.4U CN201821437713U CN209361614U CN 209361614 U CN209361614 U CN 209361614U CN 201821437713 U CN201821437713 U CN 201821437713U CN 209361614 U CN209361614 U CN 209361614U
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- sacculus
- perfused
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Abstract
The utility model provides a kind of double sacculus perfusion conduits of interval adjustable, including the first conduit, the second conduit, the proximal balloon for being fixed on the first distal end of catheter and the distal balloon catheter for being fixed on the second distal end of catheter；There are fluid injection chamber, the inflatable chamber through the first conduit and the cavity by the second conduit in first conduit, there is inflatable chamber in the second conduit, cavity extension catheter coaxial direction extends；Distance between proximal balloon and distal balloon catheter can be adjusted by enabling two conduit relative movements.
Description
Technical field
The utility model relates to gastroenterology the field of medical instrument technology, the double sacculus perfusions of especially a kind of interval adjustable
Conduit.
Background technique
Endoscopic submucosal dissection (Endoscopic submucosal dissection, ESD) occurs in recent years
It is minimally invasive mainly to carry out the scope removed under mucous membrane to the lesion greater than 2cm using various electric knives for one new treatment means
Technology.This technology realizes the en bloc resection of larger lesion, provides accurate pathological diagnosis by stages for lesion.Outside tradition
Section's operation is compared, and wound caused by ESD is smaller；Patient is subjected to the multiple treatment at multiple positions；Doctor can obtain complete group
Pathologic specimen is knitted for analysis；On the basis of eradicating tumour, preferably retain alimentary canal physiological function, hence it is evident that improve patient
Postoperative life quality is had become at present for the preferred treatment method of early gastrointestinal carcinoma and precancerous lesion including oesophagus,
With good potential applicability in clinical practice.
But since ESD excision mucous membrane area is big, postoperative common complication is ESD postoperative restenosis, in order to solve this
Hormone is perfused in the preoperative diseased region of giving of clinical practice ESD in problem.Because liquid can arbitrarily flow in enteron aisle biliary tract living, nothing
Method is fixed on desired zone, so usually patient can only be under lying status by hormone liquid injection patient's natural cavity at present
Diseased region, the disadvantage is that injection rate is big, the flowing of hormone liquid cannot effectively cover diseased region, bring to clinical practice operation tired
It is difficult.
Therefore it is a kind of liquid medicine can effectively be covered to specific region, and be not fixed zone length medical instrument it is urgent
It needs.
Utility model content
The purpose of this utility model is to design a kind of double sacculus perfusion conduits of interval adjustable, so that drug infusion becomes
Controllably, preoperative give when hormone is perfused in diseased region of effective solution ESD cannot effectively cover specific region, and be not fixed region
The problem of length.
The utility model provides a kind of double sacculus perfusion conduits of interval adjustable, the double sacculus perfusions of the interval adjustable
Conduit includes the first conduit, the second conduit, the proximal balloon for being fixed on first distal end of catheter and is fixed on described second and leads
The distal balloon catheter of pipe distal end；Have in first conduit fluid injection chamber, through first conduit the first inflatable chamber pass through it is described
The cavity of second conduit has the second inflatable chamber in second conduit；First conduit and the second conduit can relatively move
To adjust the distance between the proximal balloon and the distal balloon catheter.
Conduit is perfused in the double sacculus of the interval adjustable of the utility model, and the proximal balloon and distal balloon catheter are in body cavities
It is interior to form semi-closed structure, drug is locked in semiclosed treatment space.
Conduit is perfused in the double sacculus of the interval adjustable of the utility model, and the fluid injection chamber can be outside second conduit
It through first conduit, is distributed side by side with the first inflatable chamber, the distal end of the fluid injection chamber is located at described close with one at this time
The outlet of balloon distal is held, the proximal end of first conduit has gas-charging connection and fluid injection connector, the proximal end of second conduit
With gas-charging connection；The fluid injection chamber is also possible to be distributed side by side through second conduit with the second inflatable chamber, described at this time
The distal end of fluid injection chamber has an outlet close to the distal balloon catheter proximal end, and there is inflation to connect for the proximal end of first conduit
The proximal end of head, second conduit has gas-charging connection and fluid injection connector.
Conduit is perfused in the double sacculus of the interval adjustable of the utility model, and position is distinguished in the distal end of first and second inflatable chamber
It is communicated in the proximally and distally balloon interior, and respectively with the proximally and distally balloon interior.
The double sacculus of the interval adjustable of the utility model are perfused conduits, the sacculus be elastic material include silica gel, it is natural
Rubber and polyurethane.
Conduit is perfused in the double sacculus of the interval adjustable of the utility model, can also include guidewire lumen in the second conduit.
Conduit is perfused in the double sacculus of the interval adjustable of the utility model, and guidewire lumen can run through entire second conduit.
Conduit is perfused in the double sacculus of the interval adjustable of the utility model, and guidewire lumen can originate in the close of the distal balloon catheter
End, ends at the distal end of second conduit.
Conduit is perfused in the double sacculus of the interval adjustable of the utility model, and the proximal end of the second conduit can also connect seal wire and connect
Head.
The application method of the double sacculus perfusion conduits of the interval adjustable of the utility model, is fixed on endoscope for the conduit
It is upper to enter human body, make diseased region be in the proximal balloon by adjusting the first conduit and the second conduit under scope effect
Between the distal balloon catheter, by gas-charging connection, the filled media into two sacculus makes balloon inflation to being more than human body respectively
The diameter of natural cavity will two sacculus be fixed in human body, then by fluid injection connector to diseased region discharge drug, complete
The medium sacculus extracted out in sacculus afterwards is contracted to original size backed off after random endoscope path way.
The application method of the double sacculus perfusion conduits of the interval adjustable of the utility model, the proximal balloon and distal balloon catheter
Semi-closed structure is formed after expansion in cavity, drug is limited in the semi-closed structure.
The application method of the double sacculus perfusion conduits of the interval adjustable of the utility model, the medium of the filling sacculus can be with
For gas or liquid.
The application method of the double sacculus perfusion conduits of the interval adjustable of the utility model, can be after first stationary remote sacculus again
Proximal balloon is fixed again after adjusting position needed for the first conduit reaches proximal balloon.
Detailed description of the invention
Fig. 1 is the double sacculus perfusion conduits of interval adjustable in the intracorporal schematic diagram of people
Fig. 2 is the structural schematic diagram of adjustable double sacculus perfusion conduits.
Fig. 3 A is one embodiment of adjustable double sacculus perfusion conduits.
Fig. 3 B is the cross-sectional view of adjustable double sacculus perfusion conduits shown in Fig. 3 A.
Fig. 3 C is the sectional view at adjustable double sacculus perfusion conduit C-C shown in Fig. 3 B.
Fig. 3 D is the sectional view at adjustable double sacculus perfusion conduit D-D shown in Fig. 3 B.
Fig. 3 E is the cross-sectional view after adjustable double sacculus perfusion conduits shown in 3B rotate by a certain angle.
Fig. 3 F is the sectional view at adjustable double sacculus perfusion conduit C-C shown in Fig. 3 E.
Fig. 3 G is the sectional view at adjustable double sacculus perfusion conduit D-D shown in Fig. 3 E.
Fig. 4 A is the cross-sectional view of another embodiment of adjustable double sacculus perfusion conduits.
Fig. 4 B is the sectional view at adjustable double sacculus perfusion conduit C-C shown in Fig. 4 A.
Fig. 4 C is the sectional view at adjustable double sacculus perfusion conduit D-D shown in Fig. 4 A.
Fig. 4 D is the cross-sectional view after adjustable double sacculus perfusion conduits shown in Fig. 4 A rotate by a certain angle.
Fig. 4 E is the sectional view at adjustable double sacculus perfusion conduit C-C shown in Fig. 4 D.
Fig. 4 F is the sectional view at adjustable double sacculus perfusion conduit D-D shown in Fig. 4 D.
Fig. 5 A is another embodiment of adjustable double sacculus perfusion conduits.
Fig. 5 B is the cross-sectional view of adjustable double sacculus perfusion conduits shown in Fig. 5 A.
Fig. 5 C is the sectional view at adjustable double sacculus perfusion conduit C-C shown in Fig. 5 B.
Fig. 5 D is the sectional view at adjustable double sacculus perfusion conduit D-D shown in Fig. 5 B.
Fig. 5 E is the cross-sectional view after adjustable double sacculus perfusion conduits shown in Fig. 5 B rotate by a certain angle.
Fig. 5 F is the sectional view at adjustable double sacculus perfusion conduit C-C shown in Fig. 5 E.
Fig. 5 G is the sectional view at adjustable double sacculus perfusion conduit D-D shown in Fig. 5 E.
Fig. 6 A is the cross-sectional view of another embodiment of adjustable double sacculus perfusion conduits.
Fig. 6 B is the sectional view at adjustable double sacculus perfusion conduit C-C shown in Fig. 6 A.
Fig. 6 C is the sectional view at adjustable double sacculus perfusion conduit D-D shown in Fig. 6 A.
Fig. 7 A is the cross-sectional view of another embodiment of adjustable double sacculus perfusion conduits.
Fig. 7 B is the sectional view at adjustable double sacculus perfusion conduit C-C shown in Fig. 7 A.
Fig. 7 C is the sectional view at adjustable double sacculus perfusion conduit D-D shown in Fig. 7 A.
Drawing reference numeral explanation
First conduit 1,11,21,31,41,51, the second conduit 2,12,22,32,42,52, proximal balloon 3,13,23,33,
43,53, distal balloon catheter 4,14,24,34,44,54, the first inflatable chamber 111,211,311,411,511, fluid injection chamber 112,212,
312,412,512, gas-charging connection 15,17,35,37, fluid injection connector 16,36, fluid injection outlet 18,28,38,48,58, the second inflation
Chamber 121,221,321,421,521, guidewire lumen 29,291,391,591.
Specific embodiment
Technical solutions of the utility model are described in detail below in conjunction with attached drawing.It should be appreciated that tool described herein
Body embodiment only to explain the utility model, is not used to limit the utility model.Scope of the present application is not by these
The restriction of embodiment is being subject to the range applied for a patent.It and is that clearer description is provided and makes to be familiar with this those skilled in the art
Can understand the application content of the application, illustrate in each section might not draw according to its opposite size, certain sizes with
The ratio regular meeting of other scale dependents is highlighted and the exaggeration that seems, and uncorrelated or unessential detail section is not also drawn completely,
In the hope of the succinct of diagram.
The utility model provides a kind of double sacculus perfusion conduits of interval adjustable, the double sacculus perfusions of the interval adjustable
Conduit includes the first conduit, the second conduit, the proximal balloon for being fixed on first distal end of catheter and is fixed on described second and leads
The distal balloon catheter of pipe distal end；There is fluid injection chamber through the first inflatable chamber of first conduit and by described in first conduit
The cavity of second conduit has the second inflatable chamber in second conduit；First conduit and the second conduit can relatively move
To adjust the distance between the proximal balloon and the distal balloon catheter.
Conduit is perfused in the double sacculus of the interval adjustable of the utility model, and the proximal balloon and distal balloon catheter are in body cavities
It is interior to form semi-closed structure, drug is locked in semiclosed treatment space；The distal end of the fluid injection chamber has a position
In the outlet of the proximal balloon distal end.The specially described proximal balloon and distal balloon catheter are separately positioned on the two of diseased region
End, the proximal balloon and distal balloon catheter are filled after medium to be expanded to and can be fixed on slightly larger than after human body natural's cavity diameter
In human body, to form a semi-closed structure by two sacculus and the body cavities comprising diseased region, note can be passed through
Liquid outlet is connected to external fluid.
Conduit is perfused in the double sacculus of the interval adjustable of the utility model, and position is distinguished in the distal end of first and second inflatable chamber
It is communicated in the proximally and distally balloon interior, and respectively with the proximally and distally balloon interior.
The double sacculus of the interval adjustable of the utility model are perfused conduits, the sacculus be elastic material include silica gel, it is natural
Rubber, polyurethane etc..
Conduit is perfused in the double sacculus of the interval adjustable of the utility model, can also include guidewire lumen, seal wire in the second conduit
Chamber can run through entire second conduit, can also originate in the proximal end of the distal balloon catheter, end at the remote of second conduit
End.
Conduit is perfused in the double sacculus of the interval adjustable of the utility model, and the fluid injection chamber can be outside second conduit
It through first conduit, is distributed side by side with the first inflatable chamber, the distal end of the fluid injection chamber is located at described close with one at this time
The outlet of balloon distal is held, the proximal end of first conduit has gas-charging connection and fluid injection connector, the proximal end of second conduit
With gas-charging connection；The fluid injection chamber is also possible to be distributed side by side through second conduit with the second inflatable chamber, described at this time
The distal end of fluid injection chamber has an outlet close to the distal balloon catheter proximal end, and there is inflation to connect for the proximal end of first conduit
The proximal end of head, second conduit has gas-charging connection and fluid injection connector；It can be filled and be situated between to sacculus by the gas-charging connection
Matter can convey drug to lesion region by the fluid injection connector.
Conduit is perfused in the double sacculus of the interval adjustable of the utility model, and the proximal end of the second conduit can also connect seal wire and connect
Head can be perfused in conduit to the double sacculus of the interval adjustable by the seal wire connector and place seal wire.
The application method of the double sacculus perfusion conduits of the interval adjustable of the utility model, is fixed on endoscope for the conduit
It is upper to enter human body, make diseased region be in the proximal balloon by adjusting the first conduit and the second conduit under scope effect
Between the distal balloon catheter, by gas-charging connection, the filled media into two sacculus makes balloon inflation to being more than human body respectively
The diameter of natural cavity will two sacculus be fixed in human body, then by fluid injection connector to diseased region discharge drug, complete
The medium sacculus extracted out in sacculus afterwards is contracted to original size backed off after random endoscope path way.
The application method of the double sacculus perfusion conduits of the interval adjustable of the utility model, the proximal balloon and distal balloon catheter
Semi-closed structure is formed after expansion in cavity, drug is limited in the semi-closed structure；The specially described proximal balloon
The both ends of diseased region are separately positioned on distal balloon catheter, the proximal balloon and distal balloon catheter are expanded to summary after being filled medium
Greater than that can be fixed in human body after human body natural's cavity diameter, never by two sacculus and the human body chamber comprising diseased region
Road forms a semi-closed structure, can be connected to by fluid injection outlet with external fluid.
The application method of the double sacculus perfusion conduits of the interval adjustable of the utility model, the medium of the filling sacculus can be with
For gas or liquid.
The application method of the double sacculus perfusion conduits of the interval adjustable of the utility model, can be after first stationary remote sacculus again
Proximal balloon is fixed again after adjusting position needed for the first conduit reaches proximal balloon.
As shown in Figures 1 to 7, which illustrate the conduits of the utility model embodiment.
In the non-limiting embodiment of the utility model, the double sacculus perfusion conduits of interval adjustable are led including first
Pipe, the second conduit, proximal balloon and distal balloon catheter.As shown in Figures 1 to 7, wherein proximal balloon 3,13,23,33,43,53 is solid
It is scheduled on the distal end of the first conduit 1,11,21,31,41,51, distal balloon catheter 4,14,24,34,44,54 is fixed on the second conduit 2,
12,22,32,42,52 distal end, the first conduit 1,11,21,31,41,51 are covered on the second conduit of part 2, and 12,22,32,42,
On 52, i.e. 1,11,21,31,41,51 and the second conduit 2,12,22,32,42,52 of the first conduit is designed using intussusception.
As shown in Fig. 3 A-3G, wherein Fig. 3 A is one embodiment of adjustable double sacculus perfusion conduits, and Fig. 3 B is Fig. 3 A institute
The cross-sectional view of the adjustable double sacculus perfusion conduits shown, Fig. 3 C and 3D are adjustable double sacculus perfusion conduits shown in Fig. 3 B respectively
Sectional view at C-C and at D-D；Fig. 3 E is the section view after adjustable double sacculus perfusion conduits shown in 3B rotate by a certain angle
Figure, Fig. 3 F and 3G are the sectional view at adjustable double sacculus perfusion conduit C-C shown in Fig. 3 E and at D-D respectively.First conduit
Comprising three be separated from each other the cavities through the first conduit 11 in 11, respectively the first inflatable chamber 111, fluid injection chamber 112 and logical
Cross the cavity of the second conduit 12；Wherein 111 proximal end of the first inflatable chamber is connected with gas-charging connection 15, is distally one and proximal balloon
13 connected inflation outlets, inflation outlet are arranged inside proximal balloon 13, are filled by the gas-charging connection 15 by first
Air cavity 111 exports proximally sacculus 13 from the inflation and inflates；112 proximal end of fluid injection chamber is connected with fluid injection connector 16, is distally located at
The distal end of proximal balloon 13 and the fluid injection outlet 18 for being equipped with a discharge medicine, drug passes through fluid injection by the fluid injection connector 16
Chamber 112 reaches lesion region from fluid injection outlet 18.Second conduit 12 passes through first by the cavity in the first conduit 11 and leads
Pipe 11, both ends are respectively positioned on the outside of the both ends of the first conduit 11, i.e., the first conduit 11 is covered on outside the second conduit of part 12；Second
Include the second inflatable chamber 121 in conduit 12,121 proximal end of the second inflatable chamber is connected with gas-charging connection 17, distally for one with
The connected inflation outlet of distal balloon catheter 14, by the gas-charging connection 17 by the second inflatable chamber 121 from inflation outlet to
Distal balloon catheter 14 is inflated.The connector and conduit in the utility model are integrally formed, first conduit 11 and second
Conduit 12 is made of material slightly flexible, can be metal tube or plastic tube etc..Sacculus use elastic material, including silica gel,
Natural rubber, polyurethane etc. can avoid the injury to human body on the basis of reaching accurate leak stopping.
The first inflatable chamber 111, fluid injection chamber 112 in the utility model and the cavity for passing through the second conduit 12 can be a word
Arrange, but preferably as shown in Fig. 3 C, 3D and Fig. 3 F, 3G, the first inflatable chamber 111, fluid injection chamber 112 and pass through the second conduit 12
Cavity distribution triangular in shape so that can make the diameter of the first conduit most under the premise of guaranteeing that three cavity internal diameters are sufficiently large
May be small, to be easier the cavity into human body, and effectively reduce a possibility that sense of discomfort slightly is brought to patient excessively because of caliber.
As shown in Figure 1 when in use, double sacculus are perfused the double sacculus perfusion conduits of interval adjustable provided by the utility model
Conduit, which is inserted into the pincers road of endoscope with the state of sacculus unaerated, enters human body, and determination needs fluid injection first under scope
Then diseased region adjusts 1,11,21,31,41,51 and the second conduit 2,12,22,32,42,52 of the first conduit and makes lesion
Position is between 1,11,21,31,41,51 and the second conduit 2,12,22,32,42,52 of the first conduit, by gas-charging connection 15,
17,35,37 into two sacculus filled media make balloon inflation to being more than that the diameter of human body natural's cavity will two sacculus
It is fixed in human body, then drug is discharged to diseased region by fluid injection connector 16,36, extract the medium sacculus in sacculus out after the completion
It is contracted to original size backed off after random endoscope path way.
The medium of the filling sacculus can be gas or liquid, including nitrogen, empty gas and water etc..
Specific operate can fix proximal balloon 3 again for first stationary remote sacculus 4,14,24,34,44,54, and 13,23,
33,43,53 mobile double sacculus perfusion conduits make the distal balloon catheter 4,14 connected with the second conduit 2,12,22,32,42,52,
24,34,44,54 cross lesion locations, and the distal end for being proximally located at lesion locations of distal balloon catheter 4,14,24,34,44,54；So
Afterwards by the gas-charging connection 15,17,35,37 that is connected with the second conduit 2,12,22,32,42,52 to distal balloon catheter 4,14,24,
34,44,54 inflations or fluid injection make it be expanded to the diameter that the diameter of sacculus is greater than place body cavities, at this time distal balloon catheter 4,
14,24,34,44,54 have been fixed on the distal end of lesion region；Then adjust the first conduit 1,11,21,31,41,51 relative to
The position of second conduit 2,12,22,32,42,52, so that the distal end of proximal balloon 3,13,23,33,43,53 is located at lesion region
Proximal end, need at this time fluid injection treat diseased region be in proximal balloon 3,13,23,33,43,53 and distal balloon catheter 4,14,
Between 24,34,44,54, by the gas-charging connection 15 that is connected with proximal balloon 3,13,23,33,43,53 proximally sacculus 3,13,
The diameter that 23,33,43,53 inflations or fluid injection make it be expanded to the diameter of sacculus greater than place body cavities, proximal balloon 3,13,
23,33,43,53 have been fixed on the proximal end of lesion region；Drug or liquid by with the first conduit 1,11,21,31,41,51
Connected fluid injection connector 16,36 proximally sacculus 3, the fluid injection outlet 18,28,38,48,58 of 13,23,33,43,53 end into
Enter human body；Kept for a period of time, it is ensured that after drug extracts in sacculus out medium after being absorbed by the body shrinks sacculus automatically
Exit endoscope channel.Because of the presence of proximal balloon 3,13,23,33,43,53 and distal balloon catheter 4,14,24,34,44,54, medicine
Object is locked between two sacculus, so patient holds the acceptable treatment of the state for being seated or stand；Simultaneously as two balls
The flowing of the drug of capsule limitation, therefore the not loss occurrence of drug, required infusion of medicine amount are smaller；And it is being seated or is standing
In the state of, drug is influenced by gravity, and relative to the state to lie low, lesser amount of drug just can effectively cover proximal end ball
All diseased regions between capsule 3,13,23,33,43,53 and distal balloon catheter 4,14,24,34,44,54.
Double sacculus perfusion conduit of the utility model can also be first fixed proximal balloon 3 when in use, 13,23,33,
By adjusting the second conduit 2,12,22,32,42,52 to stationary remote sacculus 4,14,24,34,44,54 again after 43,53
Mode is completed.
It is adopted between 1,11,21,31,41,51 and the second conduit 2,12,22,32,42,52 of the first conduit in the utility model
It is designed with intussusception, and distal end one sacculus of each self-retaining of two conduits, it is only necessary to which adjusting ball can be realized by adjusting two conduits
Capsule spacing can also be achieved and realize the function being perfused between two sacculus using injection liquid, operates effective and safer.
The double sacculus perfusion conduits of the interval adjustable of the utility model are suitable for the biopsy channel that diameter is greater than 2.8mm.Often
The endoscopes such as gastroscope, the colonoscopy of rule, minimum biopsy channel size are generally 2.8mm, the double balls of the interval adjustable of the utility model
The working diameter that conduit is perfused in capsule is less than 2.8mm, it can the endoscope of cooperation biopsy channel 2.8mm or more is suitable for several
All biopsy channels.
It is different from Fig. 3 A-3G, as shown in figs 6 a-6 c, fluid injection chamber 412 can not also in the first conduit 41, but
In second conduit 42, runs through second conduit 42, be distributed side by side with the second inflatable chamber 421, the fluid injection chamber 412 is remote at this time
Hold the fluid injection outlet 48 that there is one close to 44 proximal end of distal balloon catheter.Preferably, fluid injection outlet 48 is that the second conduit 42 exists
A notch between proximal balloon 43 and distal balloon catheter 44 on side wall.
In the non-limiting embodiment of the utility model, as shown in Fig. 4 A-4F and Fig. 5 A-5G, in the second conduit 22,32
It can also include guidewire lumen 29,39, wherein can be by there is the seal wire for guiding entire product to required position.Guidewire lumen 29 can be as
It is only located at the distal end of the second conduit 22 shown in Fig. 4 A-4F, that is, originates in the proximal end of distal balloon catheter 24, terminates at the second conduit 22
Distally, entire second conduit 32 can also be run through as shown in Fig. 5 A-5G, that is, originates in the proximal end of the second conduit 32, terminates at
The distal end of two conduits 32.
As shown in figs. 4 a-4f, wherein Fig. 4 A be adjustable double sacculus perfusion conduit another embodiment cross-sectional view, figure
4B and 4C is the sectional view at adjustable double sacculus perfusion conduit C-C shown in Fig. 4 A and at D-D respectively, and Fig. 4 D is shown in Fig. 4 A
Adjustable double sacculus perfusion conduits rotate by a certain angle after cross-sectional view, Fig. 4 E and 4F are adjustable double shown in Fig. 4 D respectively
The sectional view at conduit C-C and at D-D is perfused in sacculus.Guidewire lumen 29 is only in the distal end of the second conduit 22.Second conduit 22 at this time
Ending this section to 24 proximal end of distal balloon catheter since its proximal end is single cavity structure, only one inflatable chamber in the second conduit 22
221；Terminate since the proximal end of distal balloon catheter 24 to the distal end of the second conduit 22, the second conduit 22 is double cavity structure, in addition to the
It further include guidewire lumen 291 except two inflatable chambers 221.Seal wire can rise since the proximal end of distal balloon catheter 24 across guidewire lumen 291
To guiding function, in use, seal wire prolongs endoscopic biopsy channel and is previously inserted predetermined position into the human body, then will
Seal wire enters guidewire lumen 291 from the distal catheter end face of instrument distal balloon catheter 24, penetrates endoscopic biopsy channel, then seal wire from
The proximal end of distal balloon catheter 24 is pierced by guidewire lumen 291.Seal wire cavity rises, terminates in the forward and backward of distal balloon catheter 24, and seal wire guides distance
It is short.At this moment, entire instrument will be pushed to required position under seal wire guidance.As shown in Fig. 5 A-5G, wherein Fig. 5 A is adjustable
Another embodiment of the double sacculus perfusion conduits of formula, Fig. 5 B are the cross-sectional views of adjustable double sacculus perfusion conduits shown in Fig. 5 A,
Fig. 5 C and 5D are the sectional view at adjustable double sacculus perfusion conduit C-C shown in Fig. 5 B and at D-D respectively, and Fig. 5 E is Fig. 5 B institute
The cross-sectional view after conduits rotate by a certain angle is perfused in the adjustable double sacculus shown, and Fig. 5 F and 5G are adjustable shown in Fig. 5 E respectively
Sectional view at double sacculus perfusion conduit C-C and at D-D.Guidewire lumen 391 runs through entire second conduit 32, in the second conduit 32
There are two connectors, respectively gas-charging connection 37 and seal wire connector 39 for proximal end connection；Gas-charging connection 37 and filling in the second conduit 32
Air cavity is connected, and the distal end of inflatable chamber is the inflation being connected with distal balloon catheter 34 outlet, and inflation outlet is arranged in distal end ball
Inside capsule 34, is exported from the inflation to distal balloon catheter 34 and inflated by the second inflatable chamber 321 by the gas-charging connection 37；It leads
Threaded Connector Coupling 39 is connected with guidewire lumen 391, and the distal tip that the distal end of guidewire lumen 391 is located at the second conduit 32 is one outlet, leads
Silk setting is being crossed in guidewire lumen 391.Because seal wire cavity is from the distal end of the entire instrument i.e. catheter end of 34 distal end of distal balloon catheter
Face starts, and extends at the proximal guidewire connector 39 of entire instrument.When in use, seal wire prolongs endoscopic biopsy channel and is pre-placed
The predetermined position in human body, then by seal wire stay in external one end from the distal end of entire instrument be inserted into guidewire lumen 391, then again from
Proximal guidewire connector 39 is pierced by guidewire lumen 391, and instrument can be pushed to predetermined position along seal wire.It can compared to shown in Fig. 4 A
Conduit is perfused in the double sacculus of mode, because seal wire is inside entire instrument, the distance of guidance is longer.
Different from Fig. 5 A-5G, as shown in Figure 7 A-7C, fluid injection chamber 512 is led in the second conduit 52 through described second
Pipe 52 is distributed side by side with the second inflatable chamber 521, and the distal end of the fluid injection chamber 512 has the close distal balloon catheter at this time
The fluid injection outlet 58 of 54 proximal ends.Preferably, fluid injection outlet 58 is the second conduit 52 between proximal balloon 53 and distal balloon catheter 54
A notch on side wall.
Claims (14)
1. conduit is perfused in a kind of double sacculus of interval adjustable, which is characterized in that conduit packet is perfused in the double sacculus of the interval adjustable
It includes the first conduit, the second conduit, the proximal balloon for being fixed on first distal end of catheter and is fixed on second distal end of catheter
Distal balloon catheter；
There are fluid injection chamber, the first inflatable chamber through first conduit and the chamber by second conduit in first conduit
There is the second inflatable chamber in road in second conduit；First conduit and the second conduit can relatively move described close to adjust
Hold the distance between sacculus and the distal balloon catheter.
2. conduits are perfused in the double sacculus of interval adjustable according to claim 1, which is characterized in that the proximal balloon and remote
End sacculus can form semi-closed structure in body cavities, and drug is locked in semiclosed treatment space.
3. conduit is perfused in the double sacculus of interval adjustable according to claim 1, which is characterized in that the fluid injection chamber is described
Run through first conduit outside second conduit, is distributed side by side with the first inflatable chamber.
4. conduit is perfused in the double sacculus of interval adjustable according to claim 1, which is characterized in that the fluid injection chamber runs through institute
The second conduit is stated, is distributed side by side with the second inflatable chamber.
5. conduit is perfused in the double sacculus of interval adjustable according to claim 3, which is characterized in that the distal end of the fluid injection chamber
It is located at the outlet of the proximal balloon distal end with one.
6. conduit is perfused in the double sacculus of interval adjustable according to claim 4, which is characterized in that the distal end of the fluid injection chamber
Outlet with one close to the distal balloon catheter proximal end.
7. conduit is perfused in the double sacculus of interval adjustable according to claim 1, which is characterized in that described first and second fill
The distal end of air cavity is located at the proximally and distally balloon interior, and communicates respectively with the proximally and distally balloon interior.
8. conduit is perfused in the double sacculus of interval adjustable according to claim 1, which is characterized in that the sacculus is elastic material
Material includes silica gel, natural rubber and polyurethane.
9. conduits are perfused in the double sacculus of interval adjustable according to claim 1, which is characterized in that can be in the second conduit
Include guidewire lumen.
10. conduit is perfused in the double sacculus of interval adjustable according to claim 5, which is characterized in that guidewire lumen can run through
Entire second conduit.
11. conduit is perfused in the double sacculus of interval adjustable according to claim 5, which is characterized in that guidewire lumen can originate
In the proximal end of the distal balloon catheter, end at the distal end of second conduit.
12. conduit is perfused in the double sacculus of interval adjustable according to claim 3, which is characterized in that first conduit
Proximal end has gas-charging connection and fluid injection connector, and the proximal end of second conduit has gas-charging connection.
13. conduit is perfused in the double sacculus of interval adjustable according to claim 4, which is characterized in that first conduit
Proximal end has gas-charging connection, and the proximal end of second conduit has gas-charging connection and fluid injection connector.
14. conduit is perfused in the double sacculus of interval adjustable according to claim 7, which is characterized in that the proximal end of the second conduit
Seal wire connector can also be connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821437713.4U CN209361614U (en) | 2018-09-03 | 2018-09-03 | A kind of double sacculus perfusion conduits of interval adjustable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821437713.4U CN209361614U (en) | 2018-09-03 | 2018-09-03 | A kind of double sacculus perfusion conduits of interval adjustable |
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| CN209361614U true CN209361614U (en) | 2019-09-10 |
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| CN201821437713.4U Active CN209361614U (en) | 2018-09-03 | 2018-09-03 | A kind of double sacculus perfusion conduits of interval adjustable |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108888854A (en) * | 2018-09-03 | 2018-11-27 | 南京微创医学科技股份有限公司 | A kind of double sacculus perfusion conduits of interval adjustable and its application method |
| CN111514442A (en) * | 2020-06-08 | 2020-08-11 | 北京大学第三医院（北京大学第三临床医学院） | Far-end plugging combined drug perfusion type balloon |
| CN117065187A (en) * | 2023-09-05 | 2023-11-17 | 宁波韦科医疗科技有限公司 | Distance-adjustable double-plugging balloon microcatheter |
-
2018
- 2018-09-03 CN CN201821437713.4U patent/CN209361614U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108888854A (en) * | 2018-09-03 | 2018-11-27 | 南京微创医学科技股份有限公司 | A kind of double sacculus perfusion conduits of interval adjustable and its application method |
| WO2020048257A1 (en) * | 2018-09-03 | 2020-03-12 | 南微医学科技股份有限公司 | Two-balloon perfusion catheter with adjustable spacing and usage method thereof |
| CN111514442A (en) * | 2020-06-08 | 2020-08-11 | 北京大学第三医院（北京大学第三临床医学院） | Far-end plugging combined drug perfusion type balloon |
| CN117065187A (en) * | 2023-09-05 | 2023-11-17 | 宁波韦科医疗科技有限公司 | Distance-adjustable double-plugging balloon microcatheter |
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Address after: 210032 10 hi tech three road, hi tech Industrial Development Zone, Pukou District, Nanjing, Jiangsu Patentee after: Nanwei Medical Technology Co., Ltd Address before: 210032 10 hi tech three road, hi tech Industrial Development Zone, Pukou District, Nanjing, Jiangsu Patentee before: Micro-Tech (Nanjing) Co., Ltd. |