Drug saccule

A balloon and drug technology, applied in the direction of drug devices, dilators, catheters, etc., can solve the problems of high drug loss rate, low drug utilization rate of drug balloons, and incomplete drug release, so as to avoid losses and utilize The effect of rate increase

Pending Publication Date: 2016-12-07
SHANGHAI SHENQI MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In order to solve the defect that the medicine balloon in the prior art has a high drug loss rate during the crossing process, and the medicine cannot be completely released when the medicine balloon reaches the diseased tissue, so that the utilization rate of the medicine in the medicine balloon is very low, the present invention Provide a drug balloon that can maximize the avoidance of drug loss during the crossing process, and maximize the delivery of the drug to the diseased tissue so that the drug can be absorbed to achieve the purpose of treatment

Method used

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Examples

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Embodiment Construction

[0034] The structure of the present invention will be explained in detail below in conjunction with the accompanying drawings.

[0035] Such as Figure 1-1 to Figure 5-2 As shown, the drug balloon provided by the first embodiment to the fifth embodiment of the present invention includes a balloon body and a protective film; wherein, one or more airtight gaps 1 are opened on the protective film; the protective film is wound outside the balloon body, and the two ends of the protective film are respectively bonded to the two ends of the balloon body by laser welding or glue. The shape of the airtight gap 1 can be set according to actual needs. The protective film is made of a superelastic polymer film material with good biocompatibility, and the superelastic polymer material can be a polytetrafluoroethylene film, a latex film, a silicone film, a polyurethane film or a polyurethane film Ester film, etc.

[0036] In the drug balloons provided in the first to fifth embodiments of...

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Abstract

The invention discloses a drug saccule which comprises a saccule body and protective film. The protective film is provided with one or more closed gaps; the saccule is wound by the protective film, and the two ends of the protective film are fixedly connected to the two ends of the saccule body respectively. The drug saccule has the advantages that the surface of the saccule body is wound by a layer of protective film with the closed gaps, and drugs are prevented from being washed by blood flow; when the saccule body is engorged, the closed gaps of the protective film are opened, the drugs are exposed on a blood vessel wall, a larger number of the drugs are transferred to blood vessel tissue, and the purpose of treatment is achieved.

Description

technical field [0001] The invention relates to the technical field of drug balloons, in particular to a drug balloon. Background technique [0002] Since Gruntzig's first clinical application of percutaneous transluminal coronary angioplasty (PTCA) in 1977, intravascular restenosis has been the main focus of debate in the treatment of PTCA. Intravascular restenosis is closely related to elastic recoil and excessive remodeling of the arterial wall during the early period of balloon dilatation. Later, the introduction of stents has great advantages in reducing the elastic recoil of target vessels and adverse vascular remodeling, but the implantation of stents can stimulate the migration, proliferation and neointimal hyperplasia of vascular smooth muscle cells, which also cause in-stent regeneration. Stenosis occurs. Drug-eluting stent (drug-eluting stent, DES) is a new technological breakthrough, which reduces the incidence of vascular restenosis by inhibiting neointimal hy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L29/16A61L29/08A61L29/14A61M29/02A61M31/00
CPCA61L29/085A61L29/14A61L29/16A61M29/02A61M31/00C08L27/18C08L75/04
Inventor 胡帅领宋睿王森
Owner SHANGHAI SHENQI MEDICAL TECH CO LTD
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