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

Traction instrument for ESD (endoscopic submucosal dissection) surgery

An instrument and surgery technology, applied in the field of ESD surgical traction instruments, can solve the problems of difficult operation process, difficult to grasp accurately, move and direction control, etc.

Pending Publication Date: 2020-10-20
JIANGSU VEDKANG MEDICAL SCI & TECH
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] ESD surgery refers to endoscopic submucosal resection, which is a minimally invasive surgery for resection of gastric polyps or colonic polyps under gastroscopy or colonoscopy. The operation process is difficult, and it is not easy to accurately grasp, move and control the direction

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
  • Traction instrument for ESD (endoscopic submucosal dissection) surgery
  • Traction instrument for ESD (endoscopic submucosal dissection) surgery
  • Traction instrument for ESD (endoscopic submucosal dissection) surgery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1, a kind of ESD operation traction apparatus, such as Figure 1-6 As shown, it includes guide handle 9, upper cover 8, guide ball 6, outer sleeve 3, guide tube 2 and pulling clamp 1; outer sleeve 3, guide tube 2 and pulling clamp 1 are sequentially connected in the axial direction, and guide ball 6 It is fixedly connected with the outer sleeve 3, the upper cover 8 is set on the outer circumference of the guide ball 6, and rotates along the spherical surface of the guide ball 6; the guide handle 9 is connected with a push-pull cable 11, and the push-pull cable 11 passes through the gland 802 sequentially in the axial direction , the guide ball 6, the outer casing 3 and the guide tube 2 are connected with the pull clip 1, and the guide handle 9 can move back and forth along the axial direction of the push-pull cable 11; 5 is connected with the end of the guide tube 2 across the guide ball 6 along the outer circumference of the guide ball 6 .

[0037] The guid...

Embodiment 2

[0044] In Embodiment 1, the pulling wire 5 is located on the surface of the guide ball 6. In order to avoid interference with the ball 13, the pulling wire 5 needs to be fixed on the lower part of the upper cover 8, that is, the connection points of each pulling wire 5 on the upper cover 8 are different, and welding It is difficult to find a point. For this reason, this embodiment improves the setting position of the drawing wire 5, and at the same time, the spherical rotation of the upper cover 8 and the guide ball 6 is also changed accordingly: as Figure 7-Figure 10 As shown, the upper cover 8 includes a gland 802 and a clamping cover 7 fixed to the bracket 4. The clamping cover 7 can ensure that the upper cover 8 does not separate from the guide ball 6. Specifically, it ensures that the gland 802 does not separate from the guide ball. 6, the card cover 7 is covered on the outer periphery of the gland 802. At this time, there is no need to additionally set a radial limit str...

Embodiment 3

[0046] On the basis of Example 2, such as image 3 and Figure 9 As shown, the traction handle 801 also includes a guide column 803 arranged at the upper end, the guide column 803 protrudes from the outer surface of the hemispherical traction handle 801, and is in the shape of a hollow column as a whole, the lower part of the guide handle 9 is suitable for passing through the guide column 803, and reciprocate along the axial direction of the guide column 803 . The central hole of the guide column 803 is adapted to the lower part of the guide handle 9, and is used for radially limiting the guide handle 9 to prevent the guide handle 9 from shaking, for example, it is arranged to abut and cooperate with each other. Such as Figure 6 and Figure 9 As shown, the central hole of the guide column 803 is also provided with an upper boss 8031 ​​that cooperates with the lower boss 902 of the guide handle 9. The outer diameter of the lower boss 902 is greater than the inner diameter o...

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 traction instrument for an ESD (endoscopic submucosal dissection) surgery. The traction instrument comprises a guide handle, an upper cover, a guide ball, an outer sleeve, aguide tube and a traction clip, wherein the outer sleeve, the guide tube and the traction clip are sequentially connected in the axial direction, the guide ball is fixedly connected with the outer sleeve, and the upper cover sleeves the periphery of the guide ball and is set to be able to rotate along the spherical surface of the guide ball; a push-pull cable is connected to the guide handle, sequentially penetrates through the upper cover, the guide ball, the outer sleeve and the guide tube in the axial direction and then is connected with the traction clip, and the guide handle can reciprocate in the axial direction of the ush-pull cable; and a plurality of traction wires are connected to the upper cover, and each traction wire crosses the guide ball along the periphery of the guide balland is connected with the tail end of the guide tube. The traction instrument can have a function of controlling rotation, bending, opening and closing of the head traction clip at the same time, andhas wider applicability.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an ESD operation traction device. Background technique [0002] ESD surgery refers to endoscopic submucosal resection, which is a minimally invasive surgery for resection of gastric polyps or colon polyps under gastroscopy or colonoscopy. Sex, the operation process is difficult, and it is not easy to accurately grasp, move and control the direction. Therefore, it is necessary to design an ESD surgical instrument with a controllable head. Contents of the invention [0003] In view of the limitations of the mucosal tissue pulling instruments in the current ESD operation process, the grasping head cannot realize rotation and bending movements, and all need to rely on the bending of the endoscopic head for the technical problem of grasping operations. The present invention provides a A kind of ESD operation traction instrument solves the above problems. [0004] The tech...

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
Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/29
CPCA61B17/29A61B17/2909A61B2017/2905A61B2017/2903A61B2017/2912A61B2017/2919A61B2017/2945A61B2017/2929A61B2017/2932
Inventor 邵柯张洪良
Owner JIANGSU VEDKANG MEDICAL SCI & TECH
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