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

Suction catheter device for intracranial great vessel embolism

A technique for suctioning catheters and large blood vessels, which is applied in the field of medical devices and can solve the problems of time-consuming suction and difficulty in thrombectomy.

Inactive Publication Date: 2020-10-30
玮铭医疗器械(上海)有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problems of difficult thrombectomy and long suction time for larger hard thrombi during stroke patients’ thrombectomy.

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
  • Suction catheter device for intracranial great vessel embolism
  • Suction catheter device for intracranial great vessel embolism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1. The push rod 1 and the push wire 2 are made of nickel-titanium wire, and the push wire 2 is longer than the push rod 1;

[0034] 2. The conical spiral nickel-titanium wire 4 has been shaped, the total stretched length is 5cm, the maximum diameter of shaped is 5mm, and the length is 3cm;

[0035] 3. There are fixed developing rings at both ends of the conical spiral NiTi wire 4, developing ring one 5 and developing ring two 6;

[0036] 4. One end of the conical helical nickel-titanium wire 4 is connected to the farthest end of the distal end 12 of the push rod, and is fixed on the push rod 1, and the most proximal end is fixed on the slide ring 3;

[0037] 5. The sliding ring 3 is fixed on the push wire 2 and can slide freely on the push rod 1;

[0038] 6. The fixing ring is fixed on the push rod, the number is 3, and the fixing ring 3 7 is fixed on the 2mm near the proximal end 11 of the push rod when the tapered nickel-titanium wire 4 is fully stretched, so as to p...

Embodiment 2

[0041] 1. The push rod 1 and the push wire 2 are made of nickel-titanium wire, and the push wire 2 is longer than the push rod 1;

[0042] 2. The conical spiral nickel-titanium wire 4 has been shaped, the total stretched length is 4cm, the maximum diameter of shaped is 3mm, and the length is 2cm;

[0043] 3. There are fixed developing rings at both ends of the conical spiral NiTi wire 4, developing ring one 5 and developing ring two 6;

[0044] 4. One end of the conical helical nickel-titanium wire 4 is connected to the farthest end of the distal end 12 of the push rod, and is fixed on the push rod 1, and the most proximal end is fixed on the slide ring 3;

[0045] 5. The sliding ring 3 is fixed on the push wire 2 and can slide freely on the push rod 1;

[0046] 6. The fixed ring is fixed on the push rod, the number is 5, and the fixed ring three 7 is fixed at the proximal end 2mm near the proximal end 11 of the push rod when the tapered nickel-titanium wire is fully stretched,...

Embodiment 3

[0049] 1. The push rod 1 and the push wire 2 are made of nickel-titanium wire, and the push wire 2 is longer than the push rod 1;

[0050] 2. The conical spiral nickel-titanium wire 4 has been shaped, the total stretched length is 10cm, the maximum diameter of shaped is 4mm, and the length is 6cm;

[0051] 3. There are fixed developing rings at both ends of the conical spiral NiTi wire 4, developing ring one 5 and developing ring two 6;

[0052] 4. One end of the conical helical nickel-titanium wire 4 is connected to the farthest end of the distal end 12 of the push rod, and is fixed on the push rod 1, and the most proximal end is fixed on the slide ring 3;

[0053] 5. The sliding ring 3 is fixed on the push wire 2 and can slide freely on the push rod 1;

[0054] 6. The fixing ring is fixed on the push rod, the number is 8, and the fixing ring three 7 is fixed at the proximal end 2mm near the proximal end 11 of the push rod when the tapered nickel-titanium wire is fully stret...

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

PropertyMeasurementUnit
Lengthaaaaaaaaaa
Lengthaaaaaaaaaa
The maximum diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a suction catheter device for intracranial great vessel embolism, and belongs to the technical field of medical instruments. The suction catheter device comprises a push rod,a push wire, a sliding ring, a developing ring I, a developing ring II and a suction catheter. The push rod is arranged in the suction catheter in a penetrating manner; the pushing wire parallel to the pushing rod is arranged on the outer side of the pushing rod; the far-end head of the pushing rod is connected with one end of the push wire, the push rod on the outer side of the suction catheter is sleeved with a movable sliding ring, the push wire between the connecting points of the sliding ring and the ends of the push rod forms a spiral conical thrombus breaking structure, and the developing rings are arranged at the two ends of the spiral conical structure. The problems that when a stroke patient sucks thrombus, thrombus taking difficulty is large for large hard thrombus, and suctionconsumes long time are solved, and the thrombus breaking effect is good; broken thrombus can be prevented from escaping; the expansion diameter of the nickel-titanium wire for thrombus breaking is adjustable, and the conical spiral structure with the adjustable spiral outer diameter, length and screw pitch is easy to release and recycle.

Description

technical field [0001] The invention relates to a suction catheter device for intracranial large blood vessel embolism, belonging to the technical field of medical instruments. Background technique [0002] The characteristics of cerebral apoplexy are: high incidence rate, high prevalence rate and high disability rate. The annual incidence of cerebrovascular disease in my country's urban areas is 219 / 100,000, and that in rural areas is 185 / 100,000, and it is still increasing year by year. From 1998 to 2008, the prevalence of cerebrovascular disease increased from 5.9‰ to 9.7‰. Among the surviving patients with cerebrovascular disease, about three-quarters are disabled to varying degrees. It is reported that 80% of stroke patients have different degrees of limb dysfunction, and 43.7% of them cannot take care of themselves. [0003] Intravenous rt-PA thrombolysis is currently the only effective treatment for acute cerebral infarction proven by evidence-based medicine. Howe...

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): A61B17/22
CPCA61B17/22A61B2017/22079A61B2017/22094A61B2017/22038
Inventor 朱宽王震李志刚王国辉张坤张晨朝刘锦
Owner 玮铭医疗器械(上海)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