CN117731924A - Double-balloon catheter for chemical ablation - Google Patents
Double-balloon catheter for chemical ablation Download PDFInfo
- Publication number
- CN117731924A CN117731924A CN202410129391.0A CN202410129391A CN117731924A CN 117731924 A CN117731924 A CN 117731924A CN 202410129391 A CN202410129391 A CN 202410129391A CN 117731924 A CN117731924 A CN 117731924A
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- China
- Prior art keywords
- balloon
- outer tube
- tube
- opening
- guide wire
- Prior art date
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Links
- 239000000126 substance Substances 0.000 title claims abstract description 24
- 238000002679 ablation Methods 0.000 title claims abstract description 22
- 238000012377 drug delivery Methods 0.000 claims abstract description 39
- 239000003814 drug Substances 0.000 claims abstract description 14
- 229940079593 drug Drugs 0.000 claims abstract description 8
- 230000003902 lesion Effects 0.000 claims abstract description 4
- 238000004080 punching Methods 0.000 claims abstract description 3
- 239000003550 marker Substances 0.000 claims description 11
- 230000009977 dual effect Effects 0.000 claims description 9
- 238000001647 drug administration Methods 0.000 abstract description 4
- 210000004204 blood vessel Anatomy 0.000 description 27
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002872 contrast media Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Abstract
The invention belongs to the field of medical instruments, and particularly relates to a double-balloon catheter for chemical ablation, which comprises an outer tube, an administration tube, a guide wire tube, a first balloon and a second balloon, wherein the first balloon and the second balloon are arranged front and back, the first balloon is circumferentially arranged on the administration tube, and the second balloon is circumferentially arranged on the guide wire tube; the outlet of the drug delivery tube is arranged between the first balloon and the second balloon and is used for delivering the drug to the lesion part between the first balloon and the second balloon; the guide wire tube is provided with a guide wire outlet between the first balloon and the second balloon; the outer tube is communicated with the first balloon and the second balloon and is used for punching and releasing the first balloon and the second balloon. In the invention, when facing the branch vessel which can not be accessed by the guide wire, the left end and the right end of the opening of the branch vessel can be respectively blocked by the first balloon and the second balloon, and then the medicine can reach the branch vessel by drug administration, so as to achieve the purpose of chemical ablation.
Description
Technical Field
The invention belongs to the field of medical instruments, and particularly relates to a double-balloon catheter for chemical ablation.
Background
For a blood vessel with a target lesion in certain shape variation, when the blood vessel is treated by using endovascular chemical ablation, a balloon catheter is required to seal the distal end of the blood vessel, and then a balloon catheter is required to seal the proximal end of the blood vessel; or when facing the branch vessel which can not be accessed by the guide wire, two balloons are needed to respectively seal the left end and the right end of the opening of the branch vessel; and then the target blood vessel is treated by injecting chemical ablative drugs. Because two balloon catheters need to be delivered simultaneously during this procedure, the procedure requires a larger guide catheter lumen for delivering the balloon catheters. This method of operation suffers from two disadvantages: 1. two balloon catheters are required to be respectively conveyed, so that the operation difficulty is high and the operation time is long; 2. the required guiding catheter is larger and has larger damage to the blood vessel.
Disclosure of Invention
In order to solve the above problems, an object of the present invention is to provide a double balloon catheter for chemical ablation, which can reduce the difficulty of surgical operation, improve the success rate of surgery, reduce the surgical time and perform accurate administration of a target blood vessel.
In order to achieve the above object, the present invention has the following technical scheme.
The catheter is characterized by comprising an outer tube, an administration tube, a wire guide tube, a first balloon and a second balloon, wherein the first balloon and the second balloon are arranged front and back, the first balloon is circumferentially arranged on the administration tube, and the second balloon is circumferentially arranged on the wire guide tube;
the outlet of the drug delivery tube is arranged between the first balloon and the second balloon and is used for delivering the drug to a lesion part between the first balloon and the second balloon;
the guide wire tube is provided with a guide wire outlet between the first balloon and the second balloon;
the outer tube is communicated with the first balloon and the second balloon and is used for punching and releasing the first balloon and the second balloon.
The guide wire tube is used for guiding the guide wire, and the outer tube is used for pressurizing the first balloon and the second balloon to expand the balloons and block the target blood vessel. When the catheter works, after the guide wire enters a target blood vessel, the catheter is matched with the guide wire through the guide wire pipe to enter the blood vessel of a human body until the position of the target blood vessel is between the first balloon and the second balloon, and then the first balloon and the second balloon are inflated by injecting contrast medium into the outer tube so as to seal the two ends of the target blood vessel and administer the drug from the drug administration pipe to the position of the target blood vessel; or when facing the branch blood vessel which can not be accessed by the guide wire, the left and right ends of the opening of the branch blood vessel can be respectively blocked by the first balloon and the second balloon, and then the medicine can reach the branch blood vessel by drug administration, so as to achieve the purpose of chemical ablation.
In the process, the structural design of the double sacculus can provide double plugging effects, so that the plugging effect is more effective, and chemical ablation medicines are prevented from escaping to damage other blood vessels; based on the fact that two balloon catheters are not required to be operated simultaneously, compared with a guiding catheter for conveying the two balloon catheters, the diameter of the two balloon catheters is smaller, and when the two balloon catheters are operated specifically, the operation difficulty can be effectively reduced, the operation success rate is improved, and the operation time is shortened.
Further, an outer tube channel is arranged in the outer tube, the first balloon and the second balloon are communicated with the outer tube channel, a pressurizing port for pressurizing and depressurizing the first balloon and the second balloon is also arranged on the outer tube, and the pressurizing port is communicated with the outer tube channel;
a drug delivery channel is arranged in the drug delivery tube, one end of the drug delivery channel penetrates through one end of the drug delivery tube to form a drug delivery outlet, and the other end of the drug delivery channel penetrates through the other end of the drug delivery tube to form a drug delivery inlet; a guide wire channel is arranged in the guide wire pipe, one end of the guide wire channel penetrates through one end of the guide wire pipe to form a guide wire outlet, and the other end of the guide wire channel penetrates through the other end of the guide wire pipe to form a guide wire inlet; the drug delivery pipe one end stretches into to outer tube passageway one end in, and the export of dosing exposes outside through the outer tube, wire guide pipe one end stretches into in the pipe passageway other end, and the wire guide export exposes outside through the outer tube, export and the wire guide export of dosing all are located between first sacculus and the second sacculus.
The guide wire channel is used for providing a cavity for guiding the guide wire, and the outer tube channel is used for pressurizing the first balloon and the second balloon so as to expand the balloons and block the target blood vessel. When the catheter works, after the guide wire enters a target blood vessel, the catheter enters the human blood vessel along the guide wire path through the guide wire channel of the guide wire tube until the target blood vessel is positioned between the first balloon and the second balloon, and then the contrast agent is injected into the outer tube channel, so that the two ends of the target blood vessel are blocked, and the administration channel of the administration tube is used for administration to the position of the target blood vessel; or when facing the branch blood vessel which can not be accessed by the guide wire, the left and right ends of the opening of the branch blood vessel can be respectively blocked by the first balloon and the second balloon, and then the medicine can reach the branch blood vessel by drug administration, so as to achieve the purpose of chemical ablation.
Further, the guide wire outlet and the drug delivery outlet are respectively arranged at two sides of the outer tube.
Further, the catheter also comprises a catheter seat, the catheter seat comprises a first opening, a second opening and a third opening, the first opening, the second opening and the third opening are all communicated with each other, the outer tube extends into the second opening from the third opening, and the pressurizing opening is arranged at the second opening; the administration tube extends into the outer tube channel through the first opening, and the administration inlet is arranged at the first opening.
Further, the catheter further comprises a stress release tube, the stress release tube is arranged at the third opening, and the outer tube extends into the third opening from the stress release tube and extends into the second opening.
Further, a supporting body for providing supporting force is arranged in the outer tube channel.
Further, the outer tube comprises a first outer tube and a second outer tube, the first balloon is arranged between one end of the first outer tube and one end of the second outer tube, and the second balloon is arranged at the other end of the second outer tube; the other end of the first outer tube extends into the second opening from the third opening, and the pressurizing opening is arranged at one end of the first outer tube; one end of the supporting body is fixedly arranged in the first outer tube or the catheter seat, and the other end of the supporting body is fixedly arranged in the second outer tube.
Further, a marking ring is arranged on the support body, and the position of the marking ring on the support body corresponds to the position of the drug delivery outlet. The marking ring on the support is used for the position of the drug delivery outlet.
Further, a marking ring is arranged on the administration tube, and the marking ring on the administration tube corresponds to the first balloon in position; the guide wire tube is provided with a marking ring, and the marking ring on the guide wire tube corresponds to the second balloon in position. The marking rings on the administration tube and the marking rings on the guide wire tube are used for marking the positions of the first balloon and the second balloon respectively.
Further, the outer tube, the first balloon and the second balloon are integrally formed, welded or bonded.
The double-balloon catheter has the beneficial effects that the structural design of the double balloons can provide double plugging effects, so that the plugging effect is more effective, and chemical ablation medicines are prevented from escaping to damage other blood vessels; and need not two sacculus pipes of simultaneous operation, this two sacculus pipes are smaller than the guide catheter that carries two sacculus pipes, and when specific operation, can effectively reduce the operation degree of difficulty, improve the operation success rate, reduce operation time.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram illustrating the cooperation of the administration tube, the outer tube, and the catheter hub.
Fig. 3 is a schematic diagram of the principle of catheter action.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1-3, the present embodiment provides a dual balloon catheter for chemical ablation, which comprises an outer tube 1, an administration tube 2, a guide wire tube 3, a first balloon 4, a second balloon 5, a catheter seat 6 and a stress release tube 7. The drug delivery tube 2 and the guide wire tube 3 are arranged in the outer tube 1, are not arranged side by side, and are respectively positioned at two ends of the outer tube 1; the first balloon 4 and the second balloon 5 are arranged on the outer tube 1, the first balloon 4 and the second balloon 5 also respectively encircle the administration tube 2 and the wire guide tube 3, the outer tube 1, the first balloon 4 and the second balloon 5 are integrally formed, and the first balloon 4 and the second balloon 5 are inflated and deflated through the outer tube 1; wherein the stress release tube 7 is sleeved on the outer tube 1 and surrounds the outer side of the administration tube 3; the catheter seat 6 is sleeved on the outer tube 1, and the stress relief tube 7 is connected with the catheter seat 6.
In the embodiment, an outer tube channel 11 is arranged in the outer tube 1, the first balloon 4 and the second balloon 5 are both arranged on the outer tube 1 and communicated with the outer tube channel 11, a pressurizing opening 12 for pressurizing and depressurizing the first balloon 4 and the second balloon 5 is also arranged on the outer tube 1, and the pressurizing opening 12 is communicated with the outer tube channel 11;
specifically, the outer tube 1 comprises a first outer tube 13 and a second outer tube 14, and the pressurizing port 12 is arranged at one end of the first outer tube 13; the first balloon 4 is arranged between the other end of the first outer tube 13 and one end of the second outer tube 14, the second balloon 5 is arranged at the other end of the second outer tube 14, and the outer tube channels sequentially pass through the first outer tube 13, the first balloon 4, the second outer tube 14 and the second balloon 5;
a drug delivery channel 21 is arranged in the drug delivery tube 2, one end of the drug delivery channel 21 penetrates through one end of the drug delivery tube 2 to form a drug delivery outlet 22, and the other end of the drug delivery channel 21 penetrates through the other end of the drug delivery tube 2 to form a drug delivery inlet 23;
a guide wire channel 31 is arranged in the guide wire tube 3, one end of the guide wire channel 31 penetrates through one end of the guide wire tube 3 to form a guide wire outlet 32, and the other end of the guide wire channel 31 penetrates through the other end of the guide wire tube 3 to form a guide wire inlet 33;
after the administration tube 2 sequentially passes through the outer tube channel 11 of the first outer tube 13 and the outer tube channel 11 at the first balloon 4, an administration outlet 22 of the administration tube 2 is exposed from the side wall at the second outer tube 14; after the guide wire tube 3 passes through the outer tube channel 11 of the second balloon 4, its guide wire outlet 32 emerges at the side wall at the second outer tube 14. The drug delivery outlet 22 and the guide wire outlet 32 are positioned between the first balloon 4 and the second balloon 5 and are positioned on the upper side and the lower side of the second outer tube 14 respectively.
A drug delivery channel 21 within the drug delivery tube 2 for delivering a drug; a guidewire channel 31 is provided in the guidewire tube 3 for cooperating with the guidewire a to guide the catheter into the desired vessel.
In this embodiment, the catheter seat 6 includes a first opening 61, a second opening 62, and a third opening 63, the first opening 61, the second opening 62, and the third opening 63 are all mutually connected, one end of the first outer tube 13 extends from the third opening 63 to the second opening 62, and the pressurizing opening 12 is disposed at the second opening 62; the administration tube 2 extends through the first opening 61 and then through the first outer tube 13 to extend into the outer tube passageway 11, and the administration inlet 23 is provided at the first opening 61.
Specifically, the stress relief tube 7 is provided at the third opening 63, and the outer tube 1 extends from the stress relief tube 7 into the third opening 63 and into the second opening 62.
In this embodiment, a supporting body 8 for providing supporting force is further disposed in the outer tube channel 11, and the supporting body 8 is a metal wire; specifically, one end of the support body 8 is fixedly arranged in the first outer tube 13 or in the catheter seat 6, and the other end of the support body 8 is fixedly arranged in the second outer tube 14.
In this embodiment, a marker ring 9 is also provided in the catheter, and the marker ring 9 includes a first marker ring 91, a second marker ring 92, and a third marker ring 93.
Specifically, the support body 8 is provided with a first marker ring 91, and the position of the first marker ring 91 on the support body 8 corresponds to the position of the administration port 22.
The drug delivery tube 2 is provided with a second marking ring 92, and the second marking ring 92 on the drug delivery tube 2 corresponds to the first balloon 4 in position; a third marking ring 93 is arranged on the guide wire tube 3, and the third marking ring 93 on the guide wire tube 3 corresponds to the position of the second balloon 5.
Referring to fig. 3, when the branch vessel B which cannot be accessed by the guide wire a is faced, the left and right ends of the opening of the branch vessel B can be respectively blocked by the first balloon 4 and the second balloon 5, and then the medicine is administered through the administration outlet 22, so that the medicine reaches the branch vessel B, the chemical medicine can be ensured to enter the branch vessel B to achieve the purpose of chemical ablation, and other vessels can not be damaged.
The foregoing description of the preferred embodiment of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. The catheter is characterized by comprising an outer tube, an administration tube, a wire guide tube, a first balloon and a second balloon, wherein the first balloon and the second balloon are arranged front and back, the first balloon is circumferentially arranged on the administration tube, and the second balloon is circumferentially arranged on the wire guide tube;
the outlet of the drug delivery tube is arranged between the first balloon and the second balloon and is used for delivering the drug to a lesion part between the first balloon and the second balloon;
the guide wire tube is provided with a guide wire outlet between the first balloon and the second balloon;
the outer tube is communicated with the first balloon and the second balloon and is used for punching and releasing the first balloon and the second balloon.
2. The double balloon catheter for chemical ablation according to claim 1, wherein an outer tube channel is arranged in the outer tube, the first balloon and the second balloon are communicated with the outer tube channel, and a pressurizing port for pressurizing and depressurizing the first balloon and the second balloon is further arranged on the outer tube and communicated with the outer tube channel;
a drug delivery channel is arranged in the drug delivery tube, one end of the drug delivery channel penetrates through one end of the drug delivery tube to form a drug delivery outlet, and the other end of the drug delivery channel penetrates through the other end of the drug delivery tube to form a drug delivery inlet; a guide wire channel is arranged in the guide wire pipe, one end of the guide wire channel penetrates through one end of the guide wire pipe to form the guide wire outlet, and the other end of the guide wire channel penetrates through the other end of the guide wire pipe to form the guide wire inlet; one end of the administration tube extends into the outer tube channel, the administration outlet is exposed outside through the outer tube, one end of the guide wire tube extends into the catheter channel, and the guide wire outlet is exposed outside through the outer tube.
3. A dual balloon catheter for chemical ablation according to claim 1, wherein the guide wire outlet and the drug delivery outlet are provided on both sides of the outer tube, respectively.
4. The dual balloon catheter for chemical ablation according to claim 1, further comprising a catheter hub, wherein the catheter hub comprises a first opening, a second opening, and a third opening, wherein the first opening, the second opening, and the third opening are all mutually communicated, the outer tube extends from the third opening to the second opening, and the pressurizing opening is disposed at the second opening; the administration tube extends into the outer tube channel through the first opening, and the administration inlet is arranged at the first opening.
5. The dual balloon catheter for chemical ablation according to claim 4, further comprising a stress relief tube disposed at the third opening, wherein the outer tube extends from the stress relief tube into the third opening and into the second opening.
6. A dual balloon catheter for chemical ablation according to claim 4, wherein a support body for providing a supporting force is further disposed within the outer tube channel.
7. The dual balloon catheter for chemical ablation according to claim 6, wherein the outer tube comprises a first outer tube and a second outer tube, the first balloon being disposed between one end of the first outer tube and one end of the second outer tube, the second balloon being disposed at the other end of the second outer tube; the other end of the first outer tube extends into the second opening from the third opening, and the pressurizing opening is arranged at one end of the first outer tube; one end of the supporting body is fixedly arranged in the first outer tube or the catheter seat, and the other end of the supporting body is fixedly arranged in the second outer tube.
8. A dual balloon catheter for chemical ablation according to claim 6, wherein a marker ring is provided on the support, the position of the marker ring on the support corresponding to the position of the drug delivery outlet.
9. A dual balloon catheter for chemical ablation according to claim 1, wherein a marker ring is provided on the administration tube, the marker ring on the administration tube corresponding to the first balloon position; the guide wire tube is provided with a marking ring, and the marking ring on the guide wire tube corresponds to the second balloon in position.
10. A dual balloon catheter for chemical ablation according to any of claims 1-9, wherein the outer tube, first balloon, second balloon are integrally formed or welded or bonded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410129391.0A CN117731924A (en) | 2024-01-29 | 2024-01-29 | Double-balloon catheter for chemical ablation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410129391.0A CN117731924A (en) | 2024-01-29 | 2024-01-29 | Double-balloon catheter for chemical ablation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117731924A true CN117731924A (en) | 2024-03-22 |
Family
ID=90281630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410129391.0A Pending CN117731924A (en) | 2024-01-29 | 2024-01-29 | Double-balloon catheter for chemical ablation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117731924A (en) |
-
2024
- 2024-01-29 CN CN202410129391.0A patent/CN117731924A/en active Pending
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| PB01 | Publication | ||
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