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A local thrombolysis and thrombus retrieval device suitable for intravenous thrombolysis contraindications and its application method

An intravenous thrombolysis and contraindication technology, applied in the field of medical devices, can solve the problems of thrombus shedding, tissue necrosis, patient death, etc., and achieve the effects of avoiding reperfusion injury, complete thrombolysis, and rapid thrombolysis effect.

Active Publication Date: 2021-10-19
SHANDONG UNIV QILU HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the thrombus in the blood vessel is relatively fragile, the placement and operation of the device, such as the expansion of the balloon with fluid, will cause the thrombus to fragment and fall off and flow to the downstream capillary, causing secondary tissue damage, or even directly blocking the downstream capillary, causing tissue blood flow to stop and tissue necrosis. , although the main blood vessel was dredged, the patient still died after the operation

Method used

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  • A local thrombolysis and thrombus retrieval device suitable for intravenous thrombolysis contraindications and its application method
  • A local thrombolysis and thrombus retrieval device suitable for intravenous thrombolysis contraindications and its application method

Examples

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Effect test

Embodiment 1

[0040] Such as figure 1 As shown, the thrombolysis and thrombectomy device of the present invention is provided with two balloons, respectively the first balloon 4 and the second balloon 5, and the tail of the main catheter 10 is designed with a plurality of communication interfaces, which are respectively the tail end interface 11, Tail-end interface 12, tail-end interface 13, tail-end interface 14, two balloons, the first balloon 4 and the second balloon 5 have a lumen through the main catheter 10 inside and the communication interface designed at the tail of the main catheter respectively. 13, the tail end interface 14 is connected and communicated;

[0041] The thrombolysis section is provided with a number of thrombolysis channel openings, and several thrombolysis channel openings are respectively connected to an interface through the thrombolysis lumen. The thrombolysis channel openings are divided into a first thrombolysis channel opening 8 and a second thrombolysis cha...

Embodiment 2

[0047] The steps of using the local thrombolysis and thrombectomy device for people with contraindications to intravenous thrombolysis are as follows: figure 2 Shown:

[0048] 1. Put the guide wire 1 into the thrombus site 15 and exceed the thrombus area;

[0049] 2. Put the main catheter 10 through the guide wire inlet 2 and the guide wire outlet 3 into the guide wire 1, and puncture the end of the main catheter 10 into the thrombus site 15 under the guidance of the guide wire 1 and Pass through the thrombus site 15, especially ensure that the first balloon 4 passes through the thrombus site 15, and the second balloon 5 does not reach the thrombus site 15;

[0050] 3. Inflate the first balloon 4 and the second balloon 5 with liquid to form a seal at both ends of the thrombus site 15 .

[0051] Because the main catheter 10 is provided with a blood flow lumen, and the blood flow lumen spans two balloons. When the balloon blocks the blood vessel, the blood forms a blood flow ...

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Abstract

The invention relates to a local thrombolysis and thrombus retrieval device suitable for intravenous thrombolysis contraindications and a use method thereof. Including the main catheter, the two ends of the main catheter are the front end and the rear end respectively, and the rear end is provided with several interfaces, and the front end is closed; There is an opening in the plug channel, and several balloons communicate with one interface respectively through the lumen of the balloon; the inlet of the small circulation lumen is set between the thrombolysis section and the rear end of the main catheter, and the outlet of the small circulation lumen is set between the thrombolysis section and the front end; The inlet of the small circulation lumen and the outlet of the small circulation lumen are communicated through the blood flow lumen inside the main catheter; several openings of the thrombolysis channel are respectively communicated with one interface through the thrombolysis lumen inside the main catheter. By establishing a local thrombolytic cycle, the thrombus is gradually dissolved and taken away, so as to avoid the thrombus fragmentation and falling off and flowing to the downstream capillaries, causing secondary tissue damage or even death.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a local thrombolysis and thrombectomy device for vascular interventional surgery, which is suitable for people with contraindications to intravenous thrombolysis, and a method for using the same. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] With the improvement of people's living standards and the aging of the population structure, the incidence of vascular system diseases and the death and disability rates are increasing year by year. Especially for various vascular embolism lesions, the onset is sudden, and the golden rescue time window is only calcula...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/22
CPCA61B17/22A61B2017/22038A61B2017/22054A61B2017/22067A61B2017/22082
Inventor 李传保陈玉国徐峰魏述建
Owner SHANDONG UNIV QILU HOSPITAL
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