a suction catheter

A technology for suction catheters and catheters, which is applied in the fields of suction equipment, medical science, surgery, etc. It can solve the problems of catheter negative pressure loss, thrombus difficult to enter the catheter, and large thrombus size, so as to reduce negative pressure loss, improve the scope of application, The effect of increasing the lumen diameter

Active Publication Date: 2022-07-05
THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the size of the catheter is not equal to the size of the blood vessel or the difference is large, the catheter is easy to suck blood from the gap, resulting in the loss of negative pressure in the catheter and increasing the difficulty of sucking thrombus
At the same time, the size of the thrombus is too large, and it is difficult for the thrombus to enter the catheter

Method used

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  • a suction catheter
  • a suction catheter
  • a suction catheter

Examples

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Embodiment Construction

[0029] Embodiments of the technical solutions of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only used to more clearly illustrate the technical solutions of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0030] It should be noted that, unless otherwise specified, the technical or scientific terms used in this application should have the usual meanings understood by those skilled in the art to which the present invention belongs.

[0031] In the description of this application, it is to be understood that the terms "longitudinal", "transverse", "length", "upper", "lower", "top", "bottom", "inner", "outer", "axis" The orientation or positional relationship indicated by "direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings, and is only ...

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Abstract

The present invention relates to the technical field of thrombus suction, and provides a suction catheter. The suction catheter of the present invention includes a catheter and a support frame. One end of the conduit is provided with an elastic pipe section, and the other end of the conduit is provided with a main pipe joint and a first joint communicating with the inner cavity of the conduit. The support frame includes a first pulling guide wire and an elastic frame; the elastic frame is slidably arranged in the catheter after being compressed, and the elastic frame can provide elastic force to expand the diameter of the elastic tube section; one end of the first pulling wire is connected with the elastic frame, and the first pulling wire is connected to the elastic frame. The other end of the guide wire extends out of the main pipe joint; pushing the first pulling guide wire can make the elastic frame slide. When the suction catheter of the present invention is used, the elastic frame expands the diameter of the elastic tube section, and under the constraint of the inner wall of the blood vessel, the outer wall of the elastic tube section and the inner wall of the blood vessel fit the inner lumen diameter of the elastic tube section, and the inner lumen diameter of the elastic tube section is also increase at the same time. This enables the aspiration catheter to aspirate thrombi from vessels of different sizes.

Description

technical field [0001] The invention relates to the technical field of thrombus suction, in particular to a suction catheter. Background technique [0002] A thrombus is a small block formed by blood flow on the surface of the inner surface of the cardiovascular system at the peeling or repairing site. It exists in the form of insoluble small pieces. Although the volume is very small, too much thrombus can cause harm to the human body and easily cause cardiovascular and cerebrovascular diseases. The most common ones are cerebral thrombosis and cardiovascular obstruction. Dangerous diseases. [0003] The common clinical treatment of thrombus is to dissolve the thrombus through autolysis and thrombolytic drugs. However, autolysis and thrombolytic drugs usually require a long treatment cycle, and cannot be effectively treated for some acute and severe thrombosis symptoms. [0004] With the development of technology, thrombectomy through guide wire traction or catheter aspira...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B17/22A61M1/00
CPCA61B17/22A61B2017/22045
Inventor 陈林周振华
Owner THE FIRST AFFILIATED HOSPITAL OF ARMY MEDICAL UNIV
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