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Biliary tract stent, sealed storage box and loader

A storage box and loader technology, which is applied in the direction of stents, bile ducts, and devices with human tubular structures, etc., can solve the problems of increasing patient pain, the inability to fully degrade the biliary stent, and cumbersome operations, etc., to increase patient pain and reduce Difficulty in operation, ensuring the effect of biliary tract

Pending Publication Date: 2021-10-19
LEPU MEDICAL TECH (BEIJING) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problem that the biliary stent in the prior art cannot be fully degraded, which requires a second operation to retrieve the biliary stent, thereby increasing the cumbersomeness of the operation and increasing the pain of the patient , in order to solve the above problems, the present invention provides a biliary stent, comprising:

Method used

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  • Biliary tract stent, sealed storage box and loader
  • Biliary tract stent, sealed storage box and loader
  • Biliary tract stent, sealed storage box and loader

Examples

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Effect test

Embodiment 1

[0050] A kind of biliary tract stent in the present embodiment, such as figure 1 shown, which includes:

[0051] The stent braid 1, the stent braid 1 is a fully degradable material, and has a self-expanding mesh structure to provide continuous circumferential support to the inner wall of the biliary tract; the stent wire 5 is a degradable wire; the Degradable silk materials include: polydioxanone, polylactic acid, polyglycolide, polycaprolactone, degradable polyurethane, polytrimethylene carbonate, polylactic acid-ethylene glycol copolymer, polylactide - glycolide copolymer, and at least one of 3 / 4-hydroxybutyrate;

[0052] Stent protective film 2, such as figure 2 As shown, the covering film is a degradable material, which is coated on the surface of the stent braid 1, so as to cover the surface of the stent wire 5 of the stent braid 1 and the intersection positions of the adjacent stent wires, thereby supporting the The stent protection coating 2 is structurally stable. ...

Embodiment 2

[0059] A sealed storage box is used for storing a biliary tract stent, and the biliary tract stent is in a released state in the sealed storage box. The above-mentioned sealed storage box can effectively seal and store the biliary stent to protect the stent braid 1 and the stent protective coating 2 . Moreover, due to the polymer material properties of the stent braid 1, the device should not be kept in a crimped state for a long time, and the sealed storage box is in a released state when storing the biliary stent, so as to minimize permanent deformation caused by material creep and stress relaxation.

Embodiment 3

[0061] like Figure 4 As shown, the loader 6 is used to load the biliary stent into the cavity of the biliary tract; the loader 6 includes: a connecting tube 7 and a loading funnel 8 arranged at the end of the connecting tube 7, and the biliary stent is accommodated in the In the connecting tube 7; and, the open flare 4 is provided with a traction rope 9 for loading the biliary stent; the traction rope 9 is used to pull the biliary stent, so that the biliary stent passes through the loading funnel 8, and is pressed and held Loaded into the connecting pipe 7.

[0062] The use method of the loader is as follows: the traction rope is passed through the loading funnel and passed out from the connecting tube, so as to pull the biliary stent through the traction rope, make the biliary stent pass through the loading funnel, press and load it into the in the connecting pipe. The connecting tube is nested with the delivery system, so that the biliary stent is put into the delivery sy...

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Abstract

The invention relates to the technical field of medical equipment, and especially relates to a biliary tract stent, a sealed storage box and a loader. The biliary tract stent comprises a stent woven body, and the stent woven body is made of a fully degradable material and is of a net-shaped structure with self-expansion performance so as to provide continuous circumferential support for the inner wall of the biliary tract. The biliary tract stent is made of the most degradable material with self-expansion performance. Therefore, the problems that an existing biliary stent needs to be taken back, the operation complexity degree is improved, and meanwhile pain of a patient is increased are solved.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a biliary stent, a sealed storage box and a loader. Background technique [0002] Biliary stricture is one of the common obstructive diseases, and clinically, internal stents are usually used for interventional treatment. After the stent is implanted in the biliary tract, the biliary stent is used to expand and support the narrow biliary lumen, so as to relieve biliary obstruction and keep the biliary tract unobstructed. The above-mentioned operation has the advantages of high safety, reliable curative effect and few complications. [0003] In the prior art, for example, the patent document with the publication number CN2424786Y discloses: a high-contrast biliary tract stent, which is a mesh-like stent made of metal wire, and the above-mentioned mesh-like stent is a mesh-like stent made of stainless steel wire Or a grid-like support made of nickel-iron alloy wire, and...

Claims

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Application Information

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IPC IPC(8): A61F2/04A61F2/95
CPCA61F2/04A61F2/95A61F2002/041A61F2250/0098A61F2210/0014A61F2210/0061
Inventor 陈坤崔毅杰张昱昕
Owner LEPU MEDICAL TECH (BEIJING) CO LTD
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