Novel interventional medical device

A technology of medical devices and balloons, which is applied in other medical devices, drug devices, dilators, etc., can solve problems such as non-existence, and achieve the effects of reducing blood vessel damage, avoiding coagulation, and reducing the possibility

Inactive Publication Date: 2011-07-20
SHANGHAI MICROPORT MEDICAL (GROUP) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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Embodiment Construction

[0023] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the specific embodiments described in the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts should fall within the scope of the present invention.

[0024] Preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] figure 1 It is a schematic structural diagram of an interventional medical device according to an embodiment of the present invention.

[0026] like figure 1 As shown, the new type of interven...

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Abstract

The invention provides a novel interventional medical device, which comprises a ball, a catheter and a connecting device, wherein the catheter connects the ball and the connecting device and is a four-cavity tube, a thread guide cavity, an expansion cavity, an isolating cavity and a medicine transmission cavity are formed in the catheter, and the thread guide cavity runs through the whole catheter. A far-end ball, a middle ball and a near-end ball are arranged on the far end of the four-cavity tube; the far-end ball and the near-end ball can be communicated with the connecting device through the isolating cavity and the middle ball can be communicated with the connecting device through the expansion cavity, and thus, the far-end ball and the near-end ball can stop blood flow in an operation process so as to form a temporary closed cavity; and the middle ball can conduct an expansion function. In addition, the temporary closed cavity can be communicated with the connecting device through the medicine transmission cavity. When the novel interventional medical device is used, the singleness of the function of the conventional ball expansion catheter is overcome, the narrow part in a blood vessel can be expanded, a medicine can be transmitted to the expanded blood vessel immediately, and the damage of the medicine to the normal blood vessel is prevented.

Description

technical field [0001] The invention relates to an interventional medical device. Background technique [0002] Interventional therapy is an important method for the treatment of arterial vascular diseases developed in the past 30 years. In the 1970s, balloon dilatation technology appeared. Under the guidance of medical imaging equipment, the balloon catheter was inserted into the narrow part of the blood vessel by percutaneous puncture technology, and the balloon was expanded under strict monitoring to make the blood vessel The stenosis is dilated, restoring the lumen diameter. Although the balloon can eliminate the stenosis of the blood vessel, the incidence rate of surgical vascular restenosis is as high as 30% to 50% due to reasons such as elastic recoil of the dilated blood vessel, proliferation of blood vessel wall cells, and tearing of the intima of the blood vessel. In the 1980s, bare metal stents came out, and the incidence of vascular restenosis was reduced by re...

Claims

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Application Information

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IPC IPC(8): A61M29/04A61M29/02A61M25/10A61M31/00A61F2/958
Inventor 谢志永赵振心李孝秀郑忠伟罗七一
Owner SHANGHAI MICROPORT MEDICAL (GROUP) CO LTD
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