CN220442710U - Guiding catheter with side holes and laser fibers - Google Patents
Guiding catheter with side holes and laser fibers Download PDFInfo
- Publication number
- CN220442710U CN220442710U CN202321621671.0U CN202321621671U CN220442710U CN 220442710 U CN220442710 U CN 220442710U CN 202321621671 U CN202321621671 U CN 202321621671U CN 220442710 U CN220442710 U CN 220442710U
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- laser
- side holes
- catheter
- guide catheter
- tube body
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- 239000000835 fiber Substances 0.000 title claims abstract description 34
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 210000004204 blood vessel Anatomy 0.000 abstract description 13
- 230000003902 lesion Effects 0.000 abstract description 11
- 239000008280 blood Substances 0.000 abstract description 8
- 210000004369 blood Anatomy 0.000 abstract description 8
- 230000002792 vascular Effects 0.000 abstract description 5
- 238000002679 ablation Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 1
- 239000003550 marker Substances 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 3
- 230000001225 therapeutic effect Effects 0.000 description 3
- 238000002560 therapeutic procedure Methods 0.000 description 3
- 238000000608 laser ablation Methods 0.000 description 2
- 206010053648 Vascular occlusion Diseases 0.000 description 1
- 206010057469 Vascular stenosis Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 230000008081 blood perfusion Effects 0.000 description 1
- 238000010241 blood sampling Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000007788 liquid Substances 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
- 239000013307 optical fiber Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 208000021331 vascular occlusion disease Diseases 0.000 description 1
Abstract
The utility model provides a guide catheter with side holes and laser fibers, which comprises a hollow catheter body, wherein a plurality of laser fibers are embedded in the wall of the catheter body, the tail end of the catheter body is connected with a connector, and the laser fibers extend out from the tail part of the side end of the catheter body and are connected with laser equipment, so that lesion plaques in blood vessels are ablated by laser when the guide catheter is a channel through which other vascular interventional materials pass, and the side holes and the inner cavity of the catheter are combined in the ablation process, so that blood is infused forward, and the blood passes through severe lesions of the blood vessels, thereby maintaining the normal functions of the body.
Description
Technical Field
The utility model relates to the field of intravascular laser ablation catheters, in particular to a guiding catheter with side holes and laser fibers.
Background
Intravascular interventional diagnosis and treatment are used as a minimally invasive treatment mode, and along with the progress of imaging equipment and the introduction and improvement of novel interventional instruments in recent years, vascular interventional doctors can treat more and more complex lesions, clinical application cases are more and more, and related disease types are more and more extensive.
In clinical practice, endovascular interventions are usually performed using conventional guiding catheters. The guide catheter provides a channel and support for the interventional instrument and plays a critical role in clinical use. The existing guiding catheter can be firmly and stably connected to the opening of the blood vessel and keeps good coaxiality, so that the interventional instrument can be smoothly conveyed to the lesion of the blood vessel.
The existing interventional instruments can be divided into an interventional auxiliary instrument and an interventional therapeutic instrument according to different functions; the interventional therapy auxiliary devices comprise guide wires, micro-catheters, imaging catheters, pressure measuring catheters and the like, and the interventional therapy therapeutic devices comprise stent catheters, rotary cutting catheters, rotary grinding catheters, expanding balloon catheters and the like. When the interventional operation of the endovascular severe occlusion lesion is performed, the two interventional instruments are generally needed to be used alternately for a plurality of times, so that the vascular dredging of the endovascular severe occlusion lesion is realized.
Because the intravascular serious occlusion lesion patient has serious vascular stenosis, when the traditional guide catheter enters the blood vessel to the lesion, the blood flow channel is easy to be blocked by the wall of the tube, and the forward flow of blood is difficult.
It is therefore necessary to design a guide catheter that can simultaneously achieve vascular dredging and forward blood perfusion to overcome the above-mentioned problems.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a guide catheter with a side hole and a laser fiber.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a guide catheter with side holes and laser fibers, which comprises a hollow tube body, wherein a plurality of laser fibers are embedded in the tube wall of the tube body, the tail end of the tube body is connected with a connector, and the laser fibers extend out from the tail part of the side end of the tube body and are connected with laser equipment.
Further, the surface of the tube body is provided with a marking ring, and the marking ring is arranged at one end far away from the connector.
Further, the tube body is provided with a side hole, and the side hole is adjacent to the marking ring.
Further, the laser fiber is disposed along a length direction of the tube body.
Further, other interventional devices can be accommodated within the tube.
Further, the inner diameter of the pipe body is 2.0 mm-6.0 mm.
Further, the outer diameter of the pipe body is 2.5 mm-6.5 mm.
Further, the outer surface of the pipe body is coated with a hydrophilic coating.
The beneficial effects of the utility model are as follows:
the surface of the guiding catheter is provided with a marking ring, so that the guiding catheter can be positioned under the irradiation of X rays; in addition, the wall of the guide catheter is embedded with a laser fiber, and the laser equipment emits laser through the laser fiber, so that laser ablation can be performed on calcified lesion parts of the vessel wall; in addition, the pipe wall of the guiding catheter is embedded with a plurality of laser optical fibers, so that the supporting force on the wall of the blood vessel can be enhanced; finally, a side hole is arranged on the side wall of the guiding catheter to flow blood into the inner cavity of the guiding catheter.
Drawings
FIG. 1 is a schematic view of a guiding catheter with side holes and a laser fiber according to the present utility model;
FIG. 2 is a schematic view of an end structure of a guide catheter with side holes and a laser fiber according to the present utility model;
fig. 3 is a schematic structural diagram of the first embodiment.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present utility model 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 utility model.
Referring to fig. 1 and 2, a guiding catheter with side holes and laser fibers includes a tubular body 1, the tubular body 1 is hollow, a plurality of laser fibers 101 are embedded in a wall of the tubular body 1, a tail end of the tubular body 1 is connected with a connector 2, and a side portion of the tubular body 1 is connected with a laser device 3 through the laser fibers 101.
In a specific embodiment, the laser fibers 101 are embedded in the pipe wall of the pipe body 1, in addition, a plurality of laser fibers 101 are arranged, the laser fibers 101 are gathered at the tail part of the pipe body 1, and are connected with the laser device 3 through a laser coupler;
the laser device 3 is an excimer laser vascular therapeutic machine with a laser parameter regulating and controlling system, and can emit excimer laser with an ablation effect; setting the energy density to be 30mJ/mm 2 ～80mJ/mm 2 ；
Setting the frequency, and adjusting the range to 25 Hz-80 Hz;
in addition, the connector 2 is a Luer-Lock connector, which is a commonly used catheter connector,
the method has the following functions:
quick connect and disconnect: the Luer-Lock connector adopts a rotary locking design, so that the catheter can be quickly and simply connected and detached.
Reliable connection: the Luer-Lock joint has reliable connection performance, and can avoid the problems of liquid leakage or falling off in the operations of transfusion, blood sampling and the like.
Anti-skid design: the Luer-Lock connector is designed to connect the tube 1 to a syringe, infusion set, contrast injector, etc. for injection or therapeutic procedures using the connector 2.
The surface of the pipe body 1 is provided with a marking ring 4, and the marking ring 4 is arranged at one end far away from the connector 2.
In a specific embodiment, the marker ring 4 is wrapped around the tube 1 for one week.
The marker ring 4 is often used to indicate the position of the catheter in the human body, is made of metal, can be clearly seen under X-rays, and has the following functions:
positioning a catheter: the marking ring can help doctors to accurately position the catheter in the human body, and erroneous judgment or injury is avoided.
Confirming catheter length: the number and spacing of marker rings may help the physician confirm the length of the catheter to ensure that the catheter can reach the desired location.
After the tube body 1 is introduced into the blood vessel, it is used for positioning and marking the depth of the guiding catheter into the blood vessel under the irradiation of X-rays so as to ensure the safety and effectiveness of the catheterization.
The pipe body 1 is provided with a side hole 5;
the side hole 5 is adjacent to the marker ring 4.
In a specific embodiment, the number of side holes 5 may be four, two, one, and two rows of side holes 5 are symmetrically arranged.
The side hole 5 can enable blood to flow into the inner cavity of the guiding catheter, and the blood is directly poured into the front of the catheter through the space of the inner cavity tube (or the space between the inner cavity tube wall and the outer wall of the interventional device), so that the blood is conveyed into the blood vessel, and the forward pouring of the blood is realized.
The laser fiber 101 is disposed along the longitudinal direction of the tube body 1.
The tube 1 is capable of receiving an interventional device 6.
Referring to fig. 3, the interventional device 6 may be a guide wire, a single use laser catheter, or the like. The interventional device 6 enters the blood vessel through the inner cavity of the tube body 1 and then reaches the part to be treated for treatment;
the inner diameter of the pipe body 1 is 2.0 mm-6.0 mm.
The outer diameter of the pipe body 1 is 2.5 mm-6.5 mm.
The outer surface of the pipe body 1 is coated with a hydrophilic coating.
A coating layer covering the outer surface of the pipe body 1;
referring again to fig. 3, the inner diameter of the tube 1 is selected to be 2.0mm, and the outer diameter of the tube 1 is selected to be 2.5mm;
the end of the tube body 1 enters the guide wire of the blood vessel, the tube body 1 is led into the blood vessel by the guide wire, the tube body 1 extends in the guide wire, and the tube body 1 is positioned by the X-ray imaging and marking ring 4, so that the tube body 1 reaches the vascular occlusion lesion, the laser device 3 is started, the laser fiber starts to emit laser, and the plaque of the occlusion lesion on the blood vessel wall is ablated.
The foregoing examples merely illustrate embodiments of the utility model and are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present patent is to be determined by the appended claims.
Claims (8)
1. A guide catheter with side holes and laser fibers, characterized in that: the laser device comprises a tube body (1), wherein the tube body (1) is hollow, a plurality of laser fibers (101) are embedded in the tube wall of the tube body (1), the tail end of the tube body (1) is connected with a connector (2), and the laser fibers (101) extend out from the tail part of the side end of the tube body (1) and are connected with a laser device (3).
2. A guide catheter with side holes and laser fibers as claimed in claim 1, wherein: the surface of the pipe body (1) is provided with a marking ring (4), and the marking ring (4) is arranged at one end far away from the connector (2).
3. A guide catheter with side holes and laser fibers as claimed in claim 2, wherein: the pipe body (1) is provided with a side hole (5), and the side hole (5) is adjacent to the marking ring (4).
4. A guide catheter with side holes and laser fiber according to claim 3, wherein: the laser fiber (101) is disposed along the longitudinal direction of the tube body (1).
5. A guide catheter with side holes and laser fiber according to claim 4, wherein: the tube body (1) can accommodate an interventional device (6).
6. A guide catheter with side holes and laser fiber according to claim 5, wherein: the inner diameter of the pipe body (1) is 2.0 mm-6.0 mm.
7. A guide catheter with side holes and laser fiber according to claim 6, wherein: the outer diameter of the pipe body (1) is 2.5 mm-6.5 mm.
8. A guide catheter with side holes and laser fiber according to claim 7, wherein: the outer surface of the pipe body (1) is coated with a hydrophilic coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321621671.0U CN220442710U (en) | 2023-06-26 | 2023-06-26 | Guiding catheter with side holes and laser fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321621671.0U CN220442710U (en) | 2023-06-26 | 2023-06-26 | Guiding catheter with side holes and laser fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220442710U true CN220442710U (en) | 2024-02-06 |
Family
ID=89730656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321621671.0U Active CN220442710U (en) | 2023-06-26 | 2023-06-26 | Guiding catheter with side holes and laser fibers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220442710U (en) |
-
2023
- 2023-06-26 CN CN202321621671.0U patent/CN220442710U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |