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Balloon catheter

A technology of balloon catheter and catheter, which is applied in the field of medical devices, can solve the problems of incomplete heat exchange of heat exchange medium, achieve the effects of increasing flow quality, uniform flow velocity distribution, and improving heat exchange efficiency

Pending Publication Date: 2019-08-13
PIEDMONT MEDSYST ZHUHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a balloon catheter to solve the technical problem of incomplete heat exchange of the heat exchange medium existing in the prior art

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0028] Please also refer to figure 1 and figure 2 , the balloon catheter provided by the present invention is now described. The balloon catheter includes a catheter 1 and a balloon body 2 sleeved on the catheter 1, the balloon body 2 includes an inner balloon 21 and an outer balloon 22, and the inner balloon 21 and the outer layer balloon 22 are directly coated and fixed on the catheter 1, and the inner layer balloon 21 is located inside the outer layer balloon 22, the inner layer balloon 21 and the outer layer balloon A medium channel 23 is formed between the layered balloons 22 , and the catheter 1 is provided with an outer medium inflow hole 11 and a medium return hole 12 communicating with the medium channel 23 .

[0029] Compared with the prior art, the balloon catheter provided by the present invention has a double-layered balloon body 2, so that the medium can flow in the medium channel 23 between the inner balloon 21 and the outer balloon 22, through The medium in...

Embodiment 2

[0043] As another embodiment of the present invention, please refer to Figure 1 to Figure 3 The difference between this embodiment and Embodiment 1 is that: the conduit 1 is provided with a medium inflow pipe 14, a medium return pipe 15, and an inner layer medium pipe (not shown), and the inner layer medium inflow hole 13 is connected to the The inner medium pipes are connected, the outer medium inflow hole 11 is in communication with the medium inflow pipe 14 , and the medium return pipe 15 is in communication with the medium return hole 12 . Specifically, the medium inflow pipe 14, the medium return pipe 15 and the inner layer medium pipe are all independent pipe bodies, and the inner layer medium inflow hole 13 communicates with the inner layer medium pipe, and since the inner layer medium pipe and the medium inflow pipe are two A separate tube body does not need to be provided with a control valve 141 to control the flow, and its control method is simpler, and the medium ...

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Abstract

The invention provides a balloon catheter. The balloon catheter comprises a catheter body and a balloon body sleeving the catheter, the balloon body comprises an inner-layer balloon body and an outer-layer balloon body, and the inner-layer balloon body and the outer-layer balloon body directly and fixedly wrap the catheter body; the inner-layer balloon body is located in the outer-layer balloon body, a medium passage is formed between the inner-layer balloon body and the outer-layer balloon body, and an outer-layer medium inflowing hole and a medium reflowing hole which are communicated with the medium passage are formed in the catheter passage. According to the balloon catheter, by arranging the balloon body of the two layers, mediums can flow in the medium passage between the inner-layerballoon body and the outer-layer balloon body, flow into the medium passage through the outer-layer medium inflowing hole and then flow out of the medium passage through the medium reflowing hole, thereby achieving circulation; more mediums can be subjected to heat exchange on the inner surface in the outer-layer balloon body, the flow speed distribution is uniform, the flow quality of the mediums on the surface of the balloon body is improved, and the heat exchange efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a balloon catheter. Background technique [0002] Balloon catheter is a terminal device for interventional therapy, mainly used in angioplasty, cardiovascular, stent delivery, lumen expansion, trachea and esophagus expansion and treatment, high pressure expansion, neurovascular occlusion, etc. The balloon catheter is inserted into blood vessels, lumens, trachea, esophagus, and urethra, etc., so as to be supported by the balloon. During the treatment process, the flow distribution and flow velocity distribution of the medium in the balloon have a relatively large impact on the treatment effect. [0003] In the balloon catheter in the prior art, in the pressurized state, the medium enters the balloon cavity through the catheter from the inlet, and flows back through the outlet to complete the cycle. The position of the medium inlet in the balloon will affect the flow veloc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/10
CPCA61M25/10A61M2025/1075A61M2025/1013A61M2025/1079A61M2025/1068A61F7/12A61M25/10185A61B2018/00255A61F2007/0054A61F2007/126A61M25/1011A61M25/1025
Inventor 肖家华刘玥
Owner PIEDMONT MEDSYST ZHUHAI CO LTD
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