CN213312772U

CN213312772U - Thrombolysis catheter with angioplastic function

Info

Publication number: CN213312772U
Application number: CN202021782239.6U
Authority: CN
Inventors: 罗江涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-06-01
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses a thrombolysis catheter with blood vessel forming function, including the pipe body, the both ends of pipe body are open structure, the opening of pipe body near-end is the first injection mouth that is used for pouring into thrombolysis medicine, the pipe body has set gradually water conservancy diversion section, perfusion section and guide section from near-end to distal end, the pipe diameter of perfusion section is greater than the pipe diameter of water conservancy diversion section and guide section, be provided with hydrophilic super-smooth coating and medicine coating on the outer wall of perfusion section, evenly be provided with a plurality of medicine outlet holes on the outer wall of perfusion section, evenly be provided with a plurality of water conservancy diversion holes on the outer wall of water conservancy diversion section near perfusion section, evenly be provided with a plurality of bullports on the outer wall of guide section near perfusion section; the utility model is used for overcome current thrombolysis pipe and only have the not enough of single function, solved the problem that thrombolysis pipe can't carry out the angioplastic treatment to pathological change blood vessel.

Description

Thrombolysis catheter with angioplastic function

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a thrombolysis catheter with an angioplastic function.

Background

The thrombus is a small block formed on the surface of a blood vessel inner face denudation part or a repair part in the cardiovascular system, and consists of insoluble fibrin, deposited platelets, accumulated white blood cells and entrapped red blood cells, when the blood flows through the thrombus, the blood is blocked by the thrombus, the local pressure of the blood vessel is increased, the thrombus is seriously blocked, and even thrombotic occlusion can occur, so the life of a patient is threatened.

The current method for treating thrombus which is clinically commonly used is to gradually dissolve the thrombus by injecting thrombolytic drugs so as to achieve the purpose of communicating blood vessels, most of the existing thrombolytic catheters insert an infusion section into the thrombus, and then the thrombolytic drugs are injected into the thrombus through an opening of the tube wall of the infusion section, so that the purpose of thrombolysis is achieved; however, after thrombolysis, the vessel wall at the lesion site is likely to be narrowed again, which affects the therapeutic effect.

Disclosure of Invention

The utility model aims at providing a thrombolysis pipe with angioplastic function for overcome current thrombolysis pipe and only have the not enough of single function, solved the problem that thrombolysis pipe can't carry out the angioplastic treatment to pathological change blood vessel.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a dissolve bolt pipe with blood vessel forming function, including the pipe body, the both ends of pipe body are open structure, the first injection mouth of opening for being used for pouring into the dissolve bolt medicine of pipe body near-end, the pipe body has set gradually the water conservancy diversion section from near-end to distal end, fill section and guide section, the pipe diameter of filling the section is greater than the pipe diameter of water conservancy diversion section and guide section, be provided with hydrophilic super smooth coating and medicine coating on the outer wall of filling the section, evenly be provided with a plurality of medicine holes on the outer wall of filling the section, evenly be provided with a plurality of water conservancy diversion holes on the outer wall that the water conservancy diversion section is close to and fill section department, evenly be provided with a plurality of bullports on the outer wall.

Optionally, a second drug injection port for injecting a drug for dilating a blood vessel is arranged on the side wall of the proximal end of the catheter body.

Optionally, the first drug injection port and the second drug injection port of the catheter body are both provided with luer connectors.

Optionally, a hydrophilic super-slip coating and a drug coating are disposed on the outer wall of the perfusion section.

Optionally, the connection between the pouring section and the flow guide section and the connection between the pouring section and the flow guide section are both smooth streamline structures.

Optionally, the distal end of the catheter body is a pointed structure.

The utility model discloses a thrombolysis pipe with angioplastic function has following advantage:

(1) the designed diameter of the perfusion section is slightly larger, so that the perfusion section can play a supporting role on the blood vessel, directionally and continuously dilate the stenosed blood vessel and prevent the stenosed blood vessel from retracting after the dilatation.

(2) The drug coating on the outer wall of the perfusion section is a paclitaxel drug coating which has the function of inhibiting the hyperplasia of smooth muscle cells and intima of the vascular wall, thereby greatly reducing the occurrence of the restenosis of the blood vessel.

(3) When the perfusion section is inserted into thrombus, blood can flow into the catheter body through the flow guide hole and then flow out from the guide hole and the far end of the catheter body, and a channel for the blood to flow is constructed in the thrombolysis process.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of a thrombolytic catheter inserted into a blood vessel for treatment.

Detailed Description

The present invention will be further explained with reference to the drawings, wherein the direction of the first injection port in fig. 1 is taken as the proximal end in the following description.

As shown in fig. 1-2, a thrombolysis catheter with an angioplasty function, hereinafter referred to as a thrombolysis catheter for short, comprises a catheter body 1, both ends of the catheter body 1 are open structures, the distal end of the catheter body 1 is a pointed structure, the opening at the proximal end of the catheter body 1 is a first injection port 7 for injecting thrombolysis drugs, the thrombolysis drugs are urokinase, the side wall at the proximal end of the catheter body 1 is provided with a second injection port 5 for injecting vasodilatation drugs, the vasodilatation drugs are alprostadil, luer connectors 6 are arranged at the first injection port 7 and the second injection port 5, the catheter body 1 is provided with a flow guide section 101, a perfusion section 102 and a guide section 103 in sequence from the proximal end to the distal end, the pipe diameter of the perfusion section 102 is larger than that of the flow guide section 101 and the guide section 103, and the connection part of the perfusion section 102 with the flow guide section 101 and the guide section 103 is a smooth streamline structure, evenly be provided with a plurality of medicine holes 4 on the outer wall of the section 102 that infuses, be provided with hydrophilic super smooth coating and medicine coating on the outer wall of the section 102 that infuses, the medicine coating of the section 102 outer wall that infuses is paclitaxel medicine coating, the effect is the hyperplasia of restraining vascular wall smooth muscle cell and inner membrance, the emergence of the 8 restenosis circumstances of blood vessel is greatly reduced, evenly be provided with a plurality of water conservancy diversion holes 2 on the outer wall that water conservancy diversion section 101 is close to the section 102 department that infuses, evenly be provided with a plurality of bullports 3 on the outer wall that guide section 103 is close to the section 102 department that infuses.

The operation method of the utility model is as follows: firstly, a guide wire is inserted into a blood vessel 8, then the guide wire is slowly extended into the blood vessel 8, so that the guide wire passes through a narrow or blocked lesion part in the blood vessel 8 and extends to the far end of the blood vessel 8 to provide a 'track' for the thrombolytic catheter to reach the lesion part for pressurization and expansion; then the catheter body 1 is sleeved outside the guide wire, the whole thrombolytic catheter is slowly inserted into the blood vessel 8 along the guide wire until the perfusion section 102 is inserted into the thrombus 9, then the guide wire is drawn out, the perfusion section 102 can play a role in expanding the blood vessel 8 to continuously support the blood vessel 8 at a diseased part, the paclitaxel drug coating on the outer wall of the perfusion section 102 can inhibit the hyperplasia of smooth muscle cells and intima of the blood vessel wall, the occurrence of restenosis of the blood vessel 8 is greatly reduced, and the hydrophilic super-smooth coating on the outer wall of the perfusion section 102 can prevent the new thrombus 9 from being formed around the perfusion section 102; when the perfusion section 102 is inserted into the thrombus 9, blood can flow into the catheter body 1 through the flow guide hole 2 of the flow guide section 101 and then flow out of the catheter body 1 through the guide hole 3 of the guide section 103, so that the blood can continuously flow in the thrombolysis process; then through first injection mouth 7 with urokinase continuously inject catheter body 1 in, through second injection mouth 5 with alprostadil continuously inject catheter body 1 in, when two kinds of medicines flow to filling section 102, can follow out medicine hole 4 outflow, act on thrombus 9 and vascular wall, along with the continuous injection of medicine, the medicine is continuous to be contacted with thrombus 9 and dissolves it, thrombus 9 will slowly dissolve until disappearing completely. In the whole thrombolysis process, under the dual actions of the drug for expanding the blood vessel and the perfusion section 102, the blood vessel 8 can not be subjected to restenosis, and the thrombolysis catheter is withdrawn from the body after the interventional operation is finished.

The embodiments described above are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

Claims

1. A thrombolytic catheter with an angioplasty function, characterized in that: including the pipe body, the both ends of pipe body are open structure, the first injection mouth of opening for being used for pouring into the thrombolytic medicine of pipe body near-end, the pipe body has set gradually the water conservancy diversion section from near-end to distal end, fill section and guide section, the pipe diameter of filling the section is greater than the pipe diameter of water conservancy diversion section and guide section, be provided with hydrophilic super smooth coating and drug coating on the outer wall of filling the section, evenly be provided with a plurality of medicine holes on the outer wall of filling the section, evenly be provided with a plurality of water conservancy diversion holes on the outer wall that the water conservancy diversion section is close to section of filling, evenly be provided with a plurality of bullports on the outer wall that the guide section.

2. The thrombolysis catheter having an angioplasty function according to claim 1, wherein: and a second medicine injection port for injecting a blood vessel expansion medicine is arranged on the side wall of the proximal end of the catheter body.

3. The thrombolysis catheter having an angioplasty function according to claim 2, wherein: luer connectors are arranged at the first medicine injection port and the second medicine injection port of the catheter body.

4. The thrombolysis catheter having an angioplasty function according to claim 1, wherein: the connection part of the pouring section, the flow guide section and the guiding section is of a smooth streamline structure.

5. The thrombolysis catheter having an angioplasty function according to claim 1, wherein: the far end of the catheter body is of a pointed structure.