CN213552290U - Balloon traction type arteriovenous internal fistula forming system - Google Patents
Balloon traction type arteriovenous internal fistula forming system Download PDFInfo
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- CN213552290U CN213552290U CN202022312184.9U CN202022312184U CN213552290U CN 213552290 U CN213552290 U CN 213552290U CN 202022312184 U CN202022312184 U CN 202022312184U CN 213552290 U CN213552290 U CN 213552290U
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- inner catheter
- balloon
- sacculus
- arteriovenous
- outer sleeve
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Abstract
The utility model provides a sacculus towed arteriovenous internal fistula formation system, including the inner catheter, the inner catheter overcoat is equipped with the outer tube, the tip installation of inner catheter is provided with the inner catheter sacculus, the tip installation that the outer tube is located inner catheter sacculus one side is provided with the outer tube supporting part that can open and shut, lie in the inner catheter sacculus on the inner catheter and be close to one side of outer tube supporting part, hug closely inner catheter sacculus fixed mounting have round electrode to melt the piece. The utility model discloses simple structure, easy to operate can realize arteriovenous fistulization through the percutaneous puncture, can effectively reduce the operation wound, reduces the operation risk.
Description
Technical Field
The utility model relates to an operation auxiliary instrument field specifically is a sacculus towed arteriovenous internal fistula formation system.
Background
The traditional arteriovenous fistulization is to cut the epidermal tissues of hands, strip blood vessels, manually establish a short circuit between arteriovenous by applying a vascular surgery technology, and provide a long-term and effective vascular access capable of extracorporeal circulation for hemodialysis.
However, the traditional arteriovenous fistulization also has more complications in the later period, large operation wound and long operation time, thereby causing increased operation risk.
SUMMERY OF THE UTILITY MODEL
In order to solve at least one technical problem that above-mentioned prior art exists, the utility model provides a sacculus towed arteriovenous internal fistula formation system, simple structure, easy to operate can realize arteriovenous fistulization through the percutaneous puncture, can effectively reduce the operation wound, reduces the operation risk.
The utility model provides a sacculus towed arteriovenous internal fistula formation system, including the inner catheter, the inner catheter overcoat is equipped with the outer tube, the tip installation of inner catheter is provided with the inner catheter sacculus, the tip installation that the outer tube is located inner catheter sacculus one side is provided with the outer tube supporting part that can open and shut, lie in the inner catheter sacculus on the inner catheter and be close to one side of outer tube supporting part, hug closely inner catheter sacculus fixed mounting have round electrode to melt the piece.
The utility model has the advantages that: the inner catheter and the outer sleeve which are sleeved are used, the two blood vessels are clamped through the inner catheter balloon and the outer sleeve supporting part, the electrode ablation sheet is positioned between puncture holes of the two blood vessels, accurate positioning of an ablation head is guaranteed, then the electrode ablation sheet is used for fusing the puncture holes of the two blood vessels, and fistulization is completed; whole simple structure, easy to operate can realize arteriovenous fistulization through the percutaneous puncture, can effectively reduce the operation wound, reduces the operation risk.
Preferably, the inner catheter and the inner catheter balloon are integrally formed.
Preferably, the inner catheter balloon is a compliant balloon.
Preferably, the inner catheter is a double-lumen catheter, one lumen is used for penetrating and connecting a guide wire of the electrode ablation sheet, and the other lumen is communicated with the balloon of the inner catheter.
The beneficial effect of adopting the further scheme is that: is convenient for production and assembly and is also convenient for clamping blood vessels.
Preferably, the outer sleeve supporting part is of a springable sheet structure.
The beneficial effect of adopting the further scheme is that: is convenient for production and manufacture and can reduce the production cost.
Preferably, the outer sleeve supporting part is of a balloon structure.
Preferably, the outer tube and the outer tube support portion are integrally formed.
Preferably, the outer sleeve is provided with a cavity channel communicated with the outer sleeve supporting part.
Preferably, the outer cannula support is a compliant balloon.
The beneficial effect of adopting the further scheme is that: can be convenient for production and assembly, is convenient for matching with the inner catheter saccule, is not easy to puncture blood vessels, and has better safety.
Preferably, the inner catheter and the outer catheter are made of hard materials.
The beneficial effect of adopting the further scheme is that: has certain rigidity and strength, and can prevent deformation when extruding tissues.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of an embodiment provided by the present invention;
FIG. 2 is a schematic structural view of another embodiment of the outer sleeve of the present invention;
in the figure:
1. an inner conduit; 2. an outer sleeve; 3. an inner catheter balloon; 4. an outer sleeve support portion; 5. an electrode ablation sheet.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the products of the present invention are conventionally placed when in use, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, a balloon traction type arteriovenous internal fistula forming system comprises an inner catheter 1, wherein an outer sleeve 2 is sleeved outside the inner catheter 1. The end part of the inner catheter 1 is provided with an inner catheter sacculus 3, and the end part of the outer sleeve 2 positioned at one side of the inner catheter sacculus 3 is provided with an expandable outer sleeve supporting part 4. A circle of electrode ablation sheets 5 are fixedly arranged on the inner catheter 1 on one side of the inner catheter balloon 3 close to the outer sleeve supporting part 4 and clinging to the inner catheter balloon 3. The inner catheter 1 and the outer sleeve 2 which are sleeved are used, the two blood vessels are clamped through the inner catheter balloon 3 and the outer sleeve supporting part 4, the electrode ablation sheet 5 is positioned between puncture holes of the two blood vessels, accurate positioning of an ablation head is guaranteed, then the puncture holes of the two blood vessels are fused by the electrode ablation sheet 5, and fistulization is completed; whole simple structure, easy to operate can realize arteriovenous fistulization through the percutaneous puncture, can effectively reduce the operation wound, reduces the operation risk.
The inner catheter 1 and outer sleeve 2 are guiding and positioning components, which may be of various forms in structure and shape. The electrode ablation piece 5 can be electrified through a guide wire or a lead wire, and the guide wire or the lead wire can be integrally preset in the inner catheter 1 or can be led out independently. The inflation or liquid filling channel of the inner catheter balloon 3 can also be directly and integrally preset in the inner catheter 1, and a separate pipeline can also be arranged.
The inner catheter saccule 3 and the outer sleeve supporting part 4 are used for supporting puncture sites of two blood vessels, drawing the two blood vessels closer, and finally extruding and tightly attaching the two blood vessels together. The structure is not limited to the form, and any structure capable of realizing the functions can be adopted.
The inner catheter 1 of the utility model can be made by adopting the mode of integrally forming the inner catheter 1 and the inner catheter saccule 3. The inner catheter balloon 3 is preferably a compliant balloon. This is advantageous for the production and also for the squeezing together of the two blood vessels.
The inner catheter 1 preferably adopts a double-lumen catheter structure, one lumen is used for penetrating and connecting a guide wire of the electrode ablation sheet 5, and the other lumen is communicated with the inner catheter balloon 3 and used for inflating or charging the inner catheter balloon 3.
The outer cannula support portion 4 may be configured as follows to push the blood vessel in which the outer cannula 2 is located toward the inner cannula balloon 3. As shown in fig. 2, the outer tube support portion 4 may be of a sheet structure that can be sprung up, or may be of a balloon structure.
When the outer sleeve supporting part 4 is of a balloon structure, the outer sleeve 2 and the outer sleeve supporting part 4 are preferably manufactured in an integrated manner. This can save costs. The outer sleeve 2 can be provided with a cavity channel communicated with the outer sleeve supporting part 4 for inflating or charging the balloon.
The outer cannula support 4 is preferably a compliant balloon. Thus, the inner catheter balloon 3 is convenient to match with, the blood vessel is not easy to puncture, and the safety is better.
The inner catheter 1 and the outer catheter 2 are preferably made of hard material. Such as a rigid plastic. Has certain rigidity and strength, and can prevent deformation when extruding tissues.
Utilize the utility model provides a method that sacculus towed arteriovenous internal fistula formed system guided is, near wrist portion, seeks radial artery and a vein with the radial artery companion, then with pjncture needle percutaneous, from venipuncture, pierces through, then gets into radial artery, and after pjncture needle puncture was accomplished, inserts the seal wire as the guide, inserts the pipe along the seal wire, passes vein to radial artery chamber. Later along the pipe, insert the utility model discloses an inner catheter 1 makes it pass the vein, and the head end reachs the radial artery chamber, then inserts along inner catheter 1 the utility model discloses an outer tube 2 makes its head end stop in the vein intracavity, then withdraws from the seal wire and as the pipe of guide, begins the operation apparatus. The inner catheter saccule 3 and the outer sleeve supporting part 4 are firstly supported, the radial artery is pulled back by the inner catheter saccule 3, the vein is pushed forward by the outer sleeve supporting part 4, the arteriovenous walls and the middle soft tissue and the like are clamped in the middle and are close to the electrode ablation piece 5. Finally, the electrode ablation sheet 5 is electrified to open the artery and vein to form a fistula tract.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a sacculus towed arteriovenous internal fistula forms system, a serial communication port, including inner catheter (1), inner catheter (1) overcoat is equipped with outer tube (2), the tip installation of inner catheter (1) is provided with inner catheter sacculus (3), the tip installation that outer tube (2) are located inner catheter sacculus (3) one side is provided with outer tube supporting part (4) that can open and shut, lie in inner catheter sacculus (3) on inner catheter (1) and be close to one side of outer tube supporting part (4), hug closely inner catheter sacculus (3) fixed mounting and have round electrode ablation piece (5).
2. A balloon traction arteriovenous fistula formation system according to claim 1 wherein the inner catheter (1) and inner catheter balloon (3) are integrally formed.
3. A balloon-pull arteriovenous internal fistula formation system according to claim 2 wherein the inner catheter balloon (3) is a compliant balloon.
4. The balloon traction type arteriovenous internal fistula forming system as claimed in claim 2, wherein the inner catheter (1) is a double-lumen catheter, one lumen is used for threading a guide wire of the electrode ablation piece (5), and the other lumen is communicated with the inner catheter balloon (3).
5. A balloon-drawn arteriovenous fistula formation system according to claim 1 wherein the outer sleeve support portion (4) is of a flip-up sheet construction.
6. The balloon traction type arteriovenous internal fistula forming system according to claim 1, wherein the outer sleeve supporting portion (4) is of a balloon structure.
7. A balloon-drawn arteriovenous fistula forming system according to claim 6 wherein the outer sleeve (2) and the outer sleeve support portion (4) are integrally formed.
8. The balloon traction type arteriovenous internal fistula forming system according to claim 6, wherein the outer sleeve (2) is provided with a lumen communicating with the outer sleeve support portion (4).
9. The balloon traction type arteriovenous internal fistula forming system according to claim 6, wherein the outer cannula support portion (4) is a compliant balloon.
10. A balloon traction arteriovenous fistula forming system according to claim 1 wherein the inner catheter (1) and outer catheter (2) are made of a hard material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022312184.9U CN213552290U (en) | 2020-10-17 | 2020-10-17 | Balloon traction type arteriovenous internal fistula forming system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022312184.9U CN213552290U (en) | 2020-10-17 | 2020-10-17 | Balloon traction type arteriovenous internal fistula forming system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213552290U true CN213552290U (en) | 2021-06-29 |
Family
ID=76525051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022312184.9U Active CN213552290U (en) | 2020-10-17 | 2020-10-17 | Balloon traction type arteriovenous internal fistula forming system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213552290U (en) |
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2020
- 2020-10-17 CN CN202022312184.9U patent/CN213552290U/en active Active
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| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: 313000 Room 1002, Building 1, No. 665 and 677, Huanzhu Road, High tech Zone, Wuxing District, Huzhou City, Zhejiang Province Patentee after: Huzhou Annuowei Medical Technology Co.,Ltd. Address before: Room A19, 3 / F, building 13, area B, 818 Gaoxin Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province, 430000 Patentee before: Wuhan annuowei Medical Technology Co.,Ltd. |