CN219847755U - Plugging device catheter with lithotriptic electrode - Google Patents
Plugging device catheter with lithotriptic electrode Download PDFInfo
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- CN219847755U CN219847755U CN202320686871.8U CN202320686871U CN219847755U CN 219847755 U CN219847755 U CN 219847755U CN 202320686871 U CN202320686871 U CN 202320686871U CN 219847755 U CN219847755 U CN 219847755U
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- electrode
- catheter
- wire
- occluder
- cavity
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- 239000004575 stone Substances 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 239000000741 silica gel Substances 0.000 claims description 13
- 229910002027 silica gel Inorganic materials 0.000 claims description 13
- 230000001050 lubricating effect Effects 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 5
- 229920002614 Polyether block amide Polymers 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000006185 dispersion Substances 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 241000581613 Alchemilla arvensis Species 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000007459 endoscopic retrograde cholangiopancreatography Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000003445 biliary tract Anatomy 0.000 description 1
- 238000013189 cholangiography Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000000232 gallbladder Anatomy 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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Abstract
The utility model discloses an occluder catheter with a lithotripsy electrode, which comprises a catheter body, wherein a penetrating electrode cavity and an occluder cavity are arranged in the catheter body along the length direction, a first extension pipe and a second extension pipe are respectively arranged at one end of the catheter body, the first extension pipe is correspondingly connected with the occluder cavity, and the second extension pipe is correspondingly connected with the electrode cavity; the first extension tube and the occluder lumen are used for connecting and guiding an occluder wire, and the second extension tube and the electrode lumen are used for connecting and guiding an electrode wire. The catheter of the plugging device has simple structure and is easy to manufacture and use, and the electrode cavity and the plugging device cavity are integrated in one catheter, so that the electrode cavity and the plugging device can be connected at the same time, the electrode breaks up stones and can form plugging at the front end of a tissue cavity channel, and broken stone dispersion is avoided; through the arrangement, the use of the operation catheter can be reduced, the operation of doctors is greatly simplified, and the convenience of operation is improved.
Description
Technical Field
The utility model relates to the technical field of ERCP (energy-induced control and control) surgery, in particular to an occluder catheter with a lithotripsy electrode.
Background
ERCP operation is also called endoscopic pancreatic cholangiography, and can remove calculus in biliary tract, gallbladder and other positions by combining with the liquid-electric lithotripsy technology. In the lithotripsy process, an occluder and an electrode are usually needed, the occluder is used for occluding lithotripsy, avoiding stone drift, the electrode is used for crushing stones, and the occluder and the electrode are both guided by a catheter during use. In the prior art, the occluder and the electrode are respectively arranged in two catheters, and a doctor needs to operate the two catheters when using the occluder and the electrode, so that inconvenience exists.
Disclosure of Invention
The utility model aims at solving the problems existing in the prior art and provides an occluder catheter with a lithotripsy electrode.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the plugging device catheter with the crushed stone electrode comprises a catheter body, wherein an electrode cavity and a plugging device cavity which penetrate through the catheter body are arranged in the catheter body along the length direction, a first extension pipe and a second extension pipe are respectively arranged at one end of the catheter body, the first extension pipe is correspondingly connected with the plugging device cavity, and the second extension pipe is correspondingly connected with the electrode cavity; the first extension tube and the occluder lumen are used for connecting and guiding an occluder wire so that the end of the occluder wire passes out of the other end of the catheter body, and the second extension tube and the electrode lumen are used for connecting and guiding an electrode wire so that the end of the electrode wire also passes out of the other end of the catheter body.
The catheter of the plugging device has simple structure and is easy to manufacture and use, and the electrode cavity and the plugging device cavity are integrated in one catheter, so that the electrode cavity and the plugging device can be connected at the same time, and plugging can be formed at the front end of a tissue cavity channel while the electrode breaks up stones, so that broken stone dispersion and stone drift are avoided; through the arrangement, the use of the operation catheter can be reduced, the operation of doctors is greatly simplified, and the convenience of operation is improved.
The electrode cavity and the plugging device cavity in the catheter body are mutually independent and mutually noninterfere, form channels for arrangement of the electrode wires and the plugging device wires respectively, have good independence and guiding performance, and are convenient and reliable to connect, and the two wires cannot be wound and knotted.
The first extension tube and the second extension tube can prolong the length of the cavity in the catheter body, and are convenient for connection of the electrode wire and the plugging device wire with the internal cavity, and meanwhile have a protection effect.
Further, the first extension pipe and the second extension pipe are arranged at the outlet of the catheter body in a forked mode and are fixedly connected through a connecting block, and the connecting block is of a truncated cone-shaped structure.
The electrode wires and the stopper wires can be staggered outside due to the bifurcation, so that the crossing is avoided; the connection block can be used for connecting the catheter body and the extension tube and forming a fastening and sealing structure at the end of the catheter body; the truncated cone-shaped structure is arranged for bifurcation on one hand and has a limiting function on the other hand, so that the tail end can be prevented from sliding into the tissue cavity.
Further, a first joint for connecting the stopper wire and a first silica gel valve sealing head for loosening and tightening the stopper wire are arranged at the end part of the first extension tube; the end part of the second extension tube is provided with a second connector for connecting the electrode wire and a second silica gel valve sealing head for loosening and tightening the electrode wire.
The two groups of joints are matched with the silica gel valve sealing head to control the plugging device wire and the electrode wire, and when the silica gel valve sealing head is screwed up, the plugging device wire or the electrode wire can be fixed so as to avoid relative movement.
Further, the length of the plugging device wire extending out of the plugging device cavity is larger than the length of the electrode wire extending out of the electrode cavity, so that the plugging device wire can form a plug at the front end.
Further, the outer diameter of the catheter body is not more than 2.8mm, and the inner diameter of the occluder cavity is not less than the inner diameter of the electrode cavity.
Further, the plastic double-cavity catheter is a polyurethane double-cavity catheter or a PEBAX double-cavity catheter, the inner diameter of the electrode cavity is 1.1mm, and the inner diameter of the occluder cavity is 1.2mm.
Further, the diameter of the plugging device wire is not more than 1mm, the plugging device wire forms a plugging structure at the outer end part of the catheter body, the maximum outer diameter of the expanding plugging structure is not less than 4mm, and the plugging structure is arranged opposite to the end part of the electrode wire.
Furthermore, the plugging structure is of a gradual change spiral structure, the size of the plugging structure is gradually reduced from one end close to the electrode wire to the other end, and the plugging structure has certain deformability in a cavity and can well plug broken stone from the direction of the electrode.
Further, the electrode wire is sequentially provided with an electrode anode, a first insulating layer, an electrode cathode, a second insulating layer and a lubricating layer from inside to outside, and the end part of the electrode wire is also connected with a power connector so as to be connected with an external main machine of the liquid electric lithotripter, and the electrode wire can discharge after being electrified so as to break stones.
The electrode wire has good flexibility, strength, conductivity and insulativity, the electrode anode and the electrode cathode can be silver-plated red copper, the guidance quality is very good, the first insulating layer and the second insulating layer are made of polyimide, so that the inner layer and the outer layer have strong insulativity, and the lubricating layer is a high-molecular hydrophilic coating, so that the electrode wire is convenient to penetrate and move in an electrode cavity of the catheter body.
Compared with the prior art, the utility model has the beneficial effects that: 1. the catheter of the plugging device has simple structure and is easy to manufacture and use, and the electrode cavity and the plugging device cavity are integrated in one catheter, so that the electrode cavity and the plugging device can be connected at the same time, the electrode breaks up stones and can form plugging at the front end of a tissue cavity channel, and broken stone dispersion is avoided; through the arrangement, the use of the operation catheter can be reduced, the operation of doctors is greatly simplified, and the convenience of operation is improved; 2. the electrode cavity and the plugging device cavity in the catheter body are mutually independent and mutually noninterfere, form channels for arrangement of the electrode wires and the plugging device wires respectively, have good independence and guiding performance, and are convenient and reliable to connect, and the two wires cannot be wound and knotted; 3. the arrangement of the first extension tube and the second extension tube can prolong the length of the cavity in the catheter body, is convenient for the connection of the electrode wire and the plugging device wire with the internal cavity, and has a protection function; 4. the connection block can be used for connecting the catheter body and the extension tube and forming a fastening and sealing structure at the end of the catheter body; the two groups of joints and the silica gel valve sealing head are matched for use, and the plugging device wire or the electrode wire can be fixed by screwing.
Drawings
FIG. 1 is a schematic view of the overall structure of an occluder catheter with lithotripsy electrode of the present utility model;
FIG. 2 is a schematic view of the cross-sectional structure A-A in FIG. 1;
FIG. 3 is a schematic view of the electrode wire and occluder wire of the present utility model being threaded out of a catheter body for lithotripsy;
FIG. 4 is a schematic cross-sectional structure of the wire electrode of the present utility model;
FIG. 5 is a schematic view of an occluding structure of the occluding device of the present utility model;
in the figure: 1. a catheter body; 101. a occluder lumen; 102. an electrode cavity; 2. a first extension tube; 3. a second extension tube; 4. a stopper wire; 401. a plugging structure; 5. an electrode wire; 501. an electrode positive electrode; 502. a first insulating layer; 503. an electrode negative electrode; 504. a second insulating layer; 505. a lubrication layer; 6. a first joint; 7. a first silicone valve seal head; 8. a second joint; 9. the second silica gel valve sealing head; 10. a power supply connector; 11. a connecting block; 12. calculus.
Detailed Description
The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on embodiments of the present utility model, are within the scope of the present utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be 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 utility model. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 to 4, an occluder catheter with a lithotripsy electrode comprises a catheter body 1, wherein an electrode cavity 102 and an occluder cavity 101 which penetrate through the catheter body 1 are arranged in the length direction, one end of the catheter body 1 is respectively provided with a first extension tube 2 and a second extension tube 3, the first extension tube 2 is correspondingly connected with the occluder cavity 101, and the second extension tube 3 is correspondingly connected with the electrode cavity 102; the first extension tube 2 and the occluder lumen 101 are used for connecting and guiding an occluder wire 4 such that the end of the occluder wire 4 passes out of the other end of the catheter body 1, and the second extension tube 3 and the electrode lumen 102 are used for connecting and guiding a wire electrode 5 such that the end of the wire electrode 5 also passes out of the other end of the catheter body 1.
The catheter of the occluder has simple structure and is easy to manufacture and use, and the electrode cavity 102 and the occluder cavity 101 are integrated in one catheter, so that the electrode cavity and the occluder can be connected at the same time, the electrode breaks up stones and can form an occlusion at the front end of a tissue cavity channel, and broken stone dispersion is avoided; through the arrangement, the use of the operation catheter can be reduced, the operation of doctors is greatly simplified, and the convenience of operation is improved.
The electrode cavity 102 and the plugging device cavity 101 in the catheter body 1 are mutually independent and do not interfere with each other, channels are respectively formed for arrangement of the electrode wires 5 and the plugging device wires 4, the device has good independence and guiding performance, and the connection is convenient and reliable, and the two wires cannot be wound and knotted.
The first extension tube 2 and the second extension tube 3 can prolong the length of the cavity channel in the catheter body 1, and are convenient for connection of the electrode wire and the plugging device wire with the internal cavity channel, and have a protection function.
Further, the first extension tube 2 and the second extension tube 3 are arranged at the outlet of the catheter body 1 in a forked manner and are fixedly connected through a connecting block 11, and the connecting block 11 is in a truncated cone structure.
The electrode wire 5 and the stopper wire 4 can be staggered outside due to the bifurcation, so that crossing is avoided; the connection block 11 can be used to connect the catheter body 1 and the extension tube and form a fastening and sealing structure at the end of the catheter body 1; the truncated cone-shaped structure is arranged for bifurcation on one hand and has a limiting function on the other hand, so that the tail end can be prevented from sliding into the tissue cavity.
Further, a first joint 6 for connecting the stopper wire 4 and a first silica gel valve sealing head 7 for tightening the stopper wire 4 are arranged at the end part of the first extension tube 2; the end part of the second extension tube 3 is provided with a second joint 8 for connecting the electrode wire 5 and a second silica gel valve sealing head 9 for loosening and tightening the electrode wire 5.
The two groups of joints are matched with the silica gel valve sealing head to play a role in controlling the plugging device wire 4 and the electrode wire 5, and when the silica gel valve sealing head is screwed up, the plugging device wire 4 or the electrode wire 5 can be fixed so as to avoid relative movement.
Further, the length of the stopper wire 4 extending out of the stopper cavity 101 is longer than the length of the electrode wire 5 extending out of the electrode cavity 102, so that the stopper wire can form a stopper at the front end.
Further, the catheter body 1 is an integrally formed plastic double-lumen catheter, the outer diameter of the catheter body 1 is not more than 2.8mm, and the inner diameter of the occluder cavity 101 is not less than the inner diameter of the electrode cavity 102.
Further, the plastic double-lumen catheter is made of polyurethane or PEBAX, the inner diameter of the electrode cavity 102 is 1.1mm, and the inner diameter of the occluder cavity 101 is 1.2mm.
Further, the diameter of the occluder wire 4 is 1mm, as shown in fig. 5, the occluder wire 4 forms an occluding structure 401 at the outer end of the catheter body, the maximum outer diameter of the occluding structure 401 is 4mm, and the occluding structure 401 is opposite to the end of the electrode wire 5.
Further, the plugging structure 401 is a gradually-changed spiral structure, and the size of the plugging structure is gradually reduced from one end close to the electrode wire to the other end, so that the plugging structure has a certain deformability in a cavity and can well plug broken stone from the electrode direction.
Further, the wire electrode 5 is sequentially provided with an electrode positive electrode 501, a first insulating layer 502, an electrode negative electrode 503, a second insulating layer 504 and a lubricating layer 505, which are concentrically arranged from inside to outside, and the end part of the wire electrode 5 is further connected with a power connector 10 so as to be connected with an external electrohydraulic lithotripter host, and the wire electrode 5 can discharge after being electrified so as to break stones.
The electrode wire 5 has good flexibility, strength, conductivity and insulativity, the electrode anode 501 and the electrode cathode 503 can be silver-plated red copper, the guidance quality is very good, the first insulating layer 502 and the second insulating layer 504 are made of polyimide, so that the inner and outer layers have strong insulativity, and the lubricating layer 505 is a high-molecular hydrophilic coating, so that the electrode wire can conveniently penetrate and move in an electrode cavity of the catheter body.
When the plugging device catheter with the lithotriptic electrode is used, two silica gel valve sealing heads are in a screwing state in an initial state, and the plugging device wire and the electrode wire are hidden inside the catheter and fixed. When the catheter body 1 reaches the calculus position, the first joint 6 and the first silica gel valve sealing head 7 are loosened, so that the stopper wire 4 passes over the calculus; loosening the second joint 8 and the second silicone valve sealing head 9, and moving the electrode wire 5 to enable the end part of the electrode wire 5 to be close to the calculus 12; the power plug of the electrode wire 5 is connected with the main machine of the liquid electric lithotripter, the electrode wire 5 can discharge to break up stones after being electrified, and the plugging structure 401 plugs and breaks up stones at the front end.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The plugging device catheter with the crushed stone electrode is characterized by comprising a catheter body, wherein an electrode cavity and a plugging device cavity which penetrate through the catheter body are arranged in the catheter body along the length direction, a first extension pipe and a second extension pipe are respectively arranged at one end of the catheter body, the first extension pipe is correspondingly connected with the plugging device cavity, and the second extension pipe is correspondingly connected with the electrode cavity; the first extension tube and the occluder lumen are used for connecting and guiding an occluder wire so that the end of the occluder wire passes out of the other end of the catheter body, and the second extension tube and the electrode lumen are used for connecting and guiding an electrode wire so that the end of the electrode wire also passes out of the other end of the catheter body.
2. The occluder catheter with lithotripsy electrode according to claim 1 wherein the first and second extension tubes are split at the outlet of the catheter body and are connected and secured by a connection block.
3. The occluder catheter with lithotripsy electrode according to claim 1, wherein the end of the first extension tube is provided with a first joint for connecting the occluder wire and a first silicone valve sealing head for tightening the occluder wire; the end part of the second extension tube is provided with a second connector for connecting the electrode wire and a second silica gel valve sealing head for loosening and tightening the electrode wire.
4. The occluder catheter with lithotripsy electrode according to claim 1 wherein the length of the occluder wire extending out of the occluder lumen is greater than the length of the electrode wire extending out of the electrode lumen.
5. The occluder catheter with lithotripsy electrode according to claim 1 wherein the catheter body is an integrally formed plastic double lumen catheter having an outer diameter of no more than 2.8mm and an inner diameter of the occluder lumen is no less than the inner diameter of the electrode lumen.
6. The occluder catheter with lithotripsy electrode according to claim 5 wherein the plastic double lumen catheter is a polyurethane double lumen catheter or PEBAX double lumen catheter, the inner diameter of the electrode lumen is 1.1mm and the inner diameter of the occluder lumen is 1.2mm.
7. The occlusion catheter with lithotripsy electrode according to claim 1, wherein the diameter of the occlusion wire is not more than 1mm, the occlusion wire forms an occlusion structure at the outer end of the catheter body, the maximum outer diameter of the occlusion structure deployment is not less than 4mm, the occlusion structure being arranged opposite to the end of the electrode wire.
8. The occlusion device catheter with lithotripsy electrode according to claim 7 wherein the occlusion structure is a gradual helical structure, decreasing in size from one end near the wire electrode to the other.
9. The catheter of claim 1, wherein the electrode wire is sequentially provided with an electrode positive electrode, a first insulating layer, an electrode negative electrode, a second insulating layer and a lubricating layer from inside to outside, and the end part of the electrode wire is further connected with a power connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320686871.8U CN219847755U (en) | 2023-03-31 | 2023-03-31 | Plugging device catheter with lithotriptic electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320686871.8U CN219847755U (en) | 2023-03-31 | 2023-03-31 | Plugging device catheter with lithotriptic electrode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219847755U true CN219847755U (en) | 2023-10-20 |
Family
ID=88319597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320686871.8U Active CN219847755U (en) | 2023-03-31 | 2023-03-31 | Plugging device catheter with lithotriptic electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219847755U (en) |
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2023
- 2023-03-31 CN CN202320686871.8U patent/CN219847755U/en active Active
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