CN115999022A - Light guide balloon catheter and interventional system based on same - Google Patents
Light guide balloon catheter and interventional system based on same Download PDFInfo
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- CN115999022A CN115999022A CN202211714290.7A CN202211714290A CN115999022A CN 115999022 A CN115999022 A CN 115999022A CN 202211714290 A CN202211714290 A CN 202211714290A CN 115999022 A CN115999022 A CN 115999022A
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Abstract
The application discloses a light guide balloon catheter and an interventional system based on the same. Wherein, the light guide balloon catheter includes: a tube having opposite distal and proximal ends, the tube providing at least a fluid channel and a fiber channel; a balloon body positioned at the periphery of the distal end portion of the tube body and in communication with the fluid channel; the optical fiber is arranged in the optical fiber channel in a penetrating way and is provided with a light-emitting section extending to the position of the balloon body; a catheter hub connected to a proximal end of the tube body, the catheter hub having an interface in communication with the fluid channel and the fiber channel, respectively; the guide tube is in butt joint communication with the distal end of the tube body, the distal end of the guide tube is provided with a first opening, the side wall is provided with a second opening, and the first opening and the second opening form a guide channel for guiding a guide wire to pass through the inside of the guide tube. The diameter of the photoconductive balloon catheter is smaller, and the photoconductive balloon catheter is easier to pass through a stenotic lesion.
Description
Technical Field
The application relates to the technical field of medical instruments, in particular to a light guide balloon catheter and an intervention system based on the same.
Background
The existing light guide balloon catheter is used for light therapy or medicine carrying and comprises a catheter, a balloon body, an optical fiber and a catheter seat, wherein the optical fiber is arranged inside the catheter, and the catheter is difficult to be taken into consideration with the diameter of the catheter and the power of the optical fiber because a guide wire channel is generally required to be provided inside the catheter, and the catheter with the oversized diameter is inconvenient to enter a narrow lesion position.
Disclosure of Invention
The present application provides a light guide balloon catheter and interventional system based on a light guide balloon catheter that makes it easier to pass through a stenotic lesion.
A light guide balloon catheter, comprising:
a tube having opposite distal and proximal ends, the tube providing at least a fluid channel and a fiber channel;
a balloon body positioned at the periphery of the distal end portion of the tube body and in communication with the fluid channel;
the optical fiber is arranged in the optical fiber channel in a penetrating way and is provided with a light-emitting section extending to the position of the balloon body;
a catheter hub connected to a proximal end of the tube body, the catheter hub having an interface in communication with the fluid channel and the fiber channel, respectively;
the guide tube is in butt joint communication with the distal end of the tube body, the distal end of the guide tube is provided with a first opening, the side wall is provided with a second opening, and the first opening and the second opening form a guide channel for guiding a guide wire to pass through the inside of the guide tube.
The following provides several alternatives, but not as additional limitations to the above-described overall scheme, and only further additions or preferences, each of which may be individually combined for the above-described overall scheme, or may be combined among multiple alternatives, without technical or logical contradictions.
Optionally, the tube body comprises an inner tube and an outer tube nested inside and outside, the inner cavity of the inner tube is used as the optical fiber channel, the radial gap between the inner tube and the outer tube is used as the fluid channel, and the proximal end of the balloon body is connected with the distal end of the outer tube.
Optionally, the guide tube and the inner tube are of an integral structure; or the distal end of the inner tube is provided with an extension section which extends out of the balloon body, and the guide tube and the extension section are mutually nested and fixed.
Optionally, the tube body comprises an outer tube, and the fluid channel and the fiber channel are provided by an inner cavity of the outer tube.
Optionally, the distal end and the proximal end of the balloon body are respectively provided with a tubular connector communicated with the balloon body, the connector at the proximal end is fixedly inserted with the distal end of the outer tube, and the connector at the distal end is fixedly inserted with the guide tube.
Optionally, the proximal end portion of the outer tube is a hypotube.
Optionally, the distal end of the optical fiber is inserted and fixed into a connector at the distal end of the balloon body.
Optionally, the periphery of the light-emitting section is provided with a developing ring; the developing rings are arranged at intervals along the extending direction of the optical fiber.
Optionally, the interface on the catheter hub includes:
a first interface, through which the proximal end of the optical fiber extends out of the catheter holder, and an optical path plug-in holder is connected to the end of the extension;
and the fluid channel is communicated with the second interface.
The application also provides an interventional system based on the light guide balloon catheter, which comprises the light guide balloon catheter and a guide wire, wherein the guide wire extends through the guide channel.
The diameter of the catheter can be reduced by improving the position of a guide wire channel, so that the catheter is easier to pass through a narrow lesion position.
Drawings
FIG. 1 is a schematic view of a light guiding balloon catheter according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of a portion of the structure of the fiber insertion fiber channel of FIG. 1;
FIG. 3 is a schematic diagram of a fiber optic lighting segment;
FIG. 4 is a schematic structural view of the balloon body connected to the guide tube and the outer tube;
FIG. 5 is a schematic structural view of the balloon body connected to the outer tube;
FIG. 6 is a schematic view of a developing ring disposed on a light emitting section;
FIG. 7 is a schematic view of a light guiding balloon catheter according to an embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of an interventional system based on a light guiding balloon catheter according to an embodiment provided herein.
Reference numerals in the drawings are described as follows:
10. a light guide balloon catheter;
100. a tube body; 110. a fluid channel; 120. a fiber channel; 130. an inner tube; 131. an extension section; 140. an outer tube; 141. a hypotube;
200. a balloon body; 210. a connector; 220. a connector;
300. an optical fiber; 310. a light emitting section; 311. a developing ring; 312. a coating layer;
400. a catheter holder; 420. a first interface; 421. an optical path plug-in seat; 430. a second interface;
500. a guide tube; 510. a first opening; 520. a second opening; 530. a guide channel;
600. a guide wire.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In this application, 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 or implicitly indicating the number, order of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Referring to fig. 1-3, an embodiment of the present application provides a light guide balloon catheter 10, comprising a tube body 100, a balloon body 200, an optical fiber 300, a catheter hub 400, and a guide tube 500.
For ease of understanding, the distal and proximal ends in the following embodiments are distance relative to the operator, and reference may be made specifically to X and Y in fig. 1-2, where X is the proximal end and Y is the distal end.
The tube 100 has opposite distal and proximal ends, the tube 100 providing at least a fluid channel 110 and a fiber channel 120; balloon 200 is positioned at the outer periphery of the distal portion of tube 100 and is in communication with fluid channel 110 such that the balloon can be inflated when perfusing a fluid; the optical fiber 300 is arranged through the optical fiber channel 120 and is provided with a light emitting section 310 extending to the position of the balloon body 200; catheter hub 400 is connected to the proximal end of catheter body 100, having interfaces for communication with fluid channel 110 and fiber channel 120, respectively; the guide tube 500 is in butt joint communication with the distal end of the tube body 100, the distal end of the guide tube 500 is provided with a first opening 510, the side wall is provided with a second opening 520, and the first opening 510 and the second opening 520 form a guide channel 530 for guiding the guide wire 600 through the inside of the guide tube 500.
The conventional optical fiber 300 includes a fiber core, a cladding, and a coating layer 312 sequentially arranged from inside to outside, and in this embodiment, the optical fiber 300 may be a quartz optical fiber, a fluorine-doped optical fiber, an infrared optical fiber, a composite optical fiber, a fluoride optical fiber, a plastic-coated optical fiber, a plastic optical fiber, a single-mode optical fiber, a multimode optical fiber, a dispersion shift optical fiber, a dispersion flattening optical fiber, a dispersion compensating optical fiber, a polarization maintaining optical fiber, a birefringent optical fiber, an anti-aversion environment optical fiber, a seal coating optical fiber, a carbon coating optical fiber, a metal coating optical fiber, a rare earth doped optical fiber, a raman optical fiber, an eccentric optical fiber, a luminescent optical fiber, a multi-core optical fiber, a hollow optical fiber, a polymer optical fiber, a polarization maintaining optical fiber, or the like.
The length of the optical fiber 300 is 2.5m, and the diameter of the optical fiber 300 is 0.1mm to 1.5mm. The light emitting section 310 is a portion (capable of emitting 360 ° light in the circumferential direction) from which the coating layer 312 is peeled off, and the specific length may be adaptively set according to the length of the balloon body 200 (the length of the light emitting section 310 is equal to that of both the balloon body 200).
When the coating 312 of the light-emitting segment 310 needs to be stripped, conventional physical stripping (e.g., sandblasting, polishing, scraping, etc.) or chemical stripping can be used, and the specific stripping mode can be adaptively selected according to practical requirements.
The existing guide channel through which the guide wire 600 passes from the first opening 510 of the guide tube 500 until the interface of the guide tube holder 400 passes out, is substantially coincident with the fiber channel 120, i.e., the fiber channel 120 is to accommodate not only the optical fiber 300 but also the guide wire 600, and thus the tube body has a relatively large diameter.
The guide channel 530 of the light guide balloon catheter 10 is directly disposed in the guide tube 500, and does not interfere with the optical fiber channel 120, and the optical fiber channel 120 only needs to accommodate the optical fiber 300, so that compared with the prior art, the diameter of the catheter body 100 is smaller, and the catheter body is more convenient to pass through a narrow lesion position.
Referring to fig. 4-5, in one embodiment, the tube body 100 includes an inner tube 130 and an outer tube 140 nested inside and outside, the lumen of the inner tube 130 acting as the fiber channel 120, the radial gap between the inner tube 130 and the outer tube 140 acting as the fluid channel 110, and the proximal end of the balloon body 200 being connected to the distal end of the outer tube 140. Of course, the inner tube 130 and the outer tube 140 are on the same axis, considering that the balloon body 200 is inflated more uniformly circumferentially when the liquid is infused.
In this embodiment, the inner cavity of the inner tube 130 is only the optical fiber channel 120, and the diameter of the tube body 100 can be adaptively selected according to the diameters of different optical fibers 300, so that the overall diameter of the tube body 100 is reduced to a certain extent, and a lesion narrow position can be more easily accessed.
In another embodiment, the tube body 100 includes an outer tube 140, and the fluid channel 110 and the fiber channel 120 are both provided by the lumen of the outer tube 140.
The guide tube 500 is integrally formed with the inner tube 130; or the distal end of the inner tube 130 is provided with an extension 131 extending out of the balloon body 200, and the guide tube 500 and the extension 131 are mutually nested and fixed, and in this embodiment, the fixing manner can be welding.
Further, the distal end and the proximal end of the balloon body 200 are respectively provided with a tubular connector communicated with the balloon body 200, the connector 220 at the proximal end is fixedly inserted into the distal end of the outer tube 140, and the connector 210 at the distal end is fixedly inserted into the guide tube 500.
In one embodiment, the proximal portion of the outer tube 140 is a hypotube 141. The outer tube 140, the balloon body 200 and the hypotube 141 may be fixed by welding.
To facilitate securing the optical fiber 300, the distal end of the optical fiber 300 is inserted and secured into a connector at the distal end of the balloon body 200. The distal end of the optical fiber 300 is the light emitting section 310, and of course, in consideration of avoiding the problems of light energy gathering and vessel burning at the end of the light emitting section 310, the end of the light emitting section 310 can be glued, i.e. the end can be shielded by using black or other color glue, and of course, end sealing can also be performed by using a polymer pipe, a metal pipe, etc. (for example, the lengths of the polymer pipe and the metal pipe are about 1mm, one end of the polymer pipe and the metal pipe is blocked by a mirror or other materials, and the other end of the polymer pipe and the metal pipe are nested on the end of the optical fiber), so that the light energy of the light emitting section 310 is more uniform.
Referring to fig. 6, the light emitting section 310 has a developing ring 311 at an outer circumference thereof, and the developing ring 311 is arranged at intervals of at least two times along an extending direction of the optical fiber 300. In the present embodiment, the number of the developing rings 311 is specifically 2, and the developing rings are distributed at two ends of the light emitting section 310 (both located in the balloon body 200). The visualization ring 311 may mark the specific location of the light guide balloon catheter 10 to facilitate accurate positioning.
Referring to fig. 7, the interface on the catheter hub 400 includes:
the proximal end of the optical fiber 300 extends out of the catheter holder 400 through the first interface 420, and an optical path socket 421 is connected to the end of the extension, wherein the optical path socket 421 is used for externally connecting a light source.
The second port 430, the fluid channel 110 communicates with the second port 430.
During assembly, the coating layer of the light emitting section 310 of the optical fiber 300 is firstly stripped, the end part of the light emitting section 310 is processed, then the developing ring 311 is arranged on the light emitting section 310, then the distal end of the outer tube 140 is welded with the proximal end of the balloon body 200, the proximal end of the outer tube 140 is welded with the hypotube 141, wherein the welding mode can adopt laser welding or hot air welding, then the processed optical fiber 300 penetrates from one end of the hypotube 141 until the distal end of the balloon body 200 is fixedly connected, the guide tube 500 is sleeved on the distal end of the balloon body 200, and finally the catheter seat 400 and the optical path plugging seat 421 are assembled, so that the assembly of the light guide balloon catheter 10 is completed.
Referring to fig. 8, the present application also discloses an interventional system based on a light guiding balloon catheter 10, comprising the light guiding balloon catheter 10 described above and a guide wire 600, the guide wire 600 extending via a guide channel 530.
In particular, the guidewire 600 is specifically guided into the first opening 510 and out of the second opening 520 of the guide channel 530. In actual operation, the guide wire 600 is first threaded into the lesion site, and then the light guide balloon catheter 10 is threaded into the lesion site along the guide wire 600 until the developing ring 311 on the optical fiber 300 reaches the preset position, so that the next operation can be performed.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description. When technical features of different embodiments are embodied in the same drawing, the drawing can be regarded as a combination of the embodiments concerned also being disclosed at the same time.
The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application.
Claims (10)
1. A light guide balloon catheter, comprising:
a tube having opposite distal and proximal ends, the tube providing at least a fluid channel and a fiber channel;
a balloon body positioned at the periphery of the distal end portion of the tube body and in communication with the fluid channel;
the optical fiber is arranged in the optical fiber channel in a penetrating way and is provided with a light-emitting section extending to the position of the balloon body;
a catheter hub connected to a proximal end of the tube body, the catheter hub having an interface in communication with the fluid channel and the fiber channel, respectively;
the guide tube is in butt joint communication with the distal end of the tube body, the distal end of the guide tube is provided with a first opening, the side wall is provided with a second opening, and the first opening and the second opening form a guide channel for guiding a guide wire to pass through the inside of the guide tube.
2. The light guide balloon catheter of claim 1, wherein the tube body comprises inner and outer nested tubes, a lumen of the inner tube acting as the fiber channel, a radial gap of the inner and outer tubes acting as the fluid channel, a proximal end of the balloon body being connected to a distal end of the outer tube.
3. The light guide balloon catheter of claim 2, wherein the guide tube is of unitary construction with the inner tube; or the distal end of the inner tube is provided with an extension section which extends out of the balloon body, and the guide tube and the extension section are mutually nested and fixed.
4. The light guide balloon catheter of claim 2, wherein the tube body comprises an outer tube, the fluid channel and the fiber channel each being provided by an inner lumen of the outer tube.
5. The light guide balloon catheter according to claim 2, wherein the distal end and the proximal end of the balloon body are respectively provided with a tubular connector communicated with the balloon body, the connector at the proximal end is fixedly inserted into the distal end of the outer tube, and the connector at the distal end is fixedly inserted into the guide tube.
6. The light guide balloon catheter of claim 2, wherein the proximal portion of the outer tube is a hypotube.
7. The light guide balloon catheter of claim 1, wherein the distal end of the optical fiber is spliced and secured within a connector at the distal end of the balloon body.
8. The light guide balloon catheter of claim 1, wherein the light emitting section has a developing ring on its outer circumference; the developing rings are arranged at intervals along the extending direction of the optical fiber.
9. The light guide balloon catheter of claim 1, wherein the interface on the catheter hub comprises:
a first interface, through which the proximal end of the optical fiber extends out of the catheter holder, and an optical path plug-in holder is connected to the end of the extension;
and the fluid channel is communicated with the second interface.
10. An interventional system based on a light guiding balloon catheter, comprising the light guiding balloon catheter of claims 1-9 and a guide wire extending via the guide channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211714290.7A CN115999022A (en) | 2022-12-29 | 2022-12-29 | Light guide balloon catheter and interventional system based on same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211714290.7A CN115999022A (en) | 2022-12-29 | 2022-12-29 | Light guide balloon catheter and interventional system based on same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115999022A true CN115999022A (en) | 2023-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211714290.7A Pending CN115999022A (en) | 2022-12-29 | 2022-12-29 | Light guide balloon catheter and interventional system based on same |
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| CN (1) | CN115999022A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117442854A (en) * | 2023-12-26 | 2024-01-26 | 杭州矩正医疗科技有限公司 | Intracranial laser balloon dilation catheter with controllable flow rate |
-
2022
- 2022-12-29 CN CN202211714290.7A patent/CN115999022A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117442854A (en) * | 2023-12-26 | 2024-01-26 | 杭州矩正医疗科技有限公司 | Intracranial laser balloon dilation catheter with controllable flow rate |
| CN117442854B (en) * | 2023-12-26 | 2024-03-19 | 杭州矩正医疗科技有限公司 | Intracranial laser balloon dilation catheter with controllable flow rate |
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