Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Thrombus aspiration catheter

A technology for suctioning catheters and thrombus, which is applied in the fields of suction equipment, medical science, surgery, etc. It can solve problems such as inconvenient operation, difficulty in inflating, blood vessel damage, etc., and achieve the effect of convenient operation and reduced difficulty of operation

Pending Publication Date: 2021-04-02
上海璞慧医疗器械有限公司
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The treatment rate of recanalization of blood vessels using thrombus aspiration is relatively high, however, there are still many defects in the existing thrombus aspiration
[0004] For example, the inflatable balloon used in the existing thrombus aspiration catheter has low elasticity, and it will cause greater damage to the blood vessel after accidental rupture; Difficulty in inflating due to extrusion; the friction between the inflatable balloon used in the existing thrombus aspiration catheter and the vessel wall is low, and the risk of postoperative no-reflow due to relative sliding between the two is greatly increased; the existing thrombus aspiration catheter uses The guide wires are all obliquely cut at the head end, although the obliquely cut head end is beneficial to the suction of large thrombus, but the risk of scratching the vessel wall is greatly increased; the existing thrombus suction catheter has a complex structure and is inconvenient to operate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Thrombus aspiration catheter
  • Thrombus aspiration catheter
  • Thrombus aspiration catheter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Embodiment 1: A kind of thrombus suction catheter

[0058] Such as Figure 1-4 , the present invention provides a thrombus aspiration catheter, the thrombus aspiration catheter includes a catheter body 1, a balloon 2, a first Y-shaped valve 3 and a second Y-shaped valve 4;

[0059] The catheter main body 1 includes an outer catheter 5 and an inner catheter 6 located inside the outer catheter 5. The head end of the inner catheter 6 and the outer catheter 5 fit together. Except for the head end, the remaining parts of the inner catheter 6 and the outer catheter 5 There is a gap between them, the part where the inner conduit 6 and the outer conduit 5 fit together is provided with a number of suction holes 7, and the tail end of the inner conduit 6 protrudes a part from the tail end of the outer conduit 5;

[0060] The balloon 2 is sheathed on the outer catheter 5, and the outer catheter 5 is provided with a number of liquid injection holes 8 on the part inside the balloon...

Embodiment 2

[0091] Embodiment 2: A kind of thrombus suction method

[0092] Using the thrombus aspiration catheter of Example 1, the specific steps are as follows:

[0093] (1) Use the guide wire to make the catheter main body 1 close to the proximal end of the thrombus, inject liquid into the balloon 2 through the first side branch 10 of the first Y-shaped valve 3, and seal the blood vessel;

[0094] (2) After sealing the blood vessel, pull out the guide wire, insert the metal interference wire 16, and manually dredge the embolism;

[0095] (3) After the thrombus is loosened, put the metal interference wire 16 into the catheter body 1, and suck the thrombus through the second side branch 12 of the second Y-shaped valve 4. If the suction process is not smooth, stop the suction and use the metal interference wire After the wire 16 further loosens the large thrombus, suction is performed again, and this step is repeated until the suction is completed.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a thrombus aspiration catheter, and belongs to the technical field of medical instruments. The invention provides the thrombus aspiration catheter. The thrombus aspiration catheter comprises a catheter body, a balloon, a first Y-shaped valve and a second Y-shaped valve, the catheter body comprises an outer catheter and an inner catheter located inside the outer catheter, ahead end of the inner catheter is attached to a head end of the outer catheter, a gap is reserved between the other parts of the inner catheter and the outer catheter except the head ends, a pluralityof suction holes are formed in the attached portion of the inner catheter and the outer catheter, a part of a tail end of the inner catheter extends out of a tail end of the outer catheter, the balloon is arranged on the outer catheter in a sleeving mode, a plurality of liquid injection holes are formed in the portion, located inside the balloon, of the outer catheter, a first main branch of thefirst Y-shaped valve communicates with the outer catheter, and a second main branch of the second Y-shaped valve communicates with the inner catheter. According to the thrombus aspiration catheter, the structure is simple, when the thrombus aspiration catheter is used for aspirating thrombus, only the first Y-shaped valve needs to be used for injecting liquid into the balloon, then the second Y-shaped valve is used for aspirating the thrombus, and the operation is convenient.

Description

technical field [0001] The invention relates to a thrombus suction catheter, which belongs to the technical field of medical instruments. Background technique [0002] A thrombus is a small piece of blood that forms on the surface of a vessel in the cardiovascular system where the lining has been peeled off or repaired. In variable flow dependent patterns, thrombi consist of insoluble fibrin, deposited platelets, accumulated leukocytes, and trapped erythrocytes. If the thrombus forms a blockage in the blood vessels of the human body and interrupts the blood flow, it is easy to cause myocardial infarction, stroke and other life-threatening diseases. [0003] At present, the more common artificial mechanical method to restore vascular patency clinically is thrombus aspiration. Thrombus aspiration is mainly to intervene in human blood vessels by means of a thrombus aspiration catheter to extract out the clotted thrombus formed in the blood vessels of the human body. The trea...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A61B17/22A61M1/00
CPCA61B17/22A61B2017/22051A61B2017/22062A61B2017/22067A61B2017/22079
Inventor 李涛李晓菲聂桐
Owner 上海璞慧医疗器械有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com