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Suction catheter with side hole and device

A technology of suction catheter and suction hole, which is applied in catheter, medical science, X-ray/γ-ray/particle irradiation therapy, etc. It can solve the problems of thick diameter and difficult suction plug, and achieve the effect of precise release position

Pending Publication Date: 2022-04-12
BEIJING SHIJITAN HOSPITAL CAPITAL MEDICAL UNIVERSTY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The treatment rate of recanalization of blood vessels using thrombus aspiration is relatively high, however, there are still many defects in the existing thrombus aspiration
[0006] For example, the diameter of the distal end area of ​​the existing thrombus aspiration catheter is the same, not only thick in diameter, but also difficult to form negative pressure when there is a guide wire, resulting in difficulty in aspiration of the thrombus; although it is beneficial to form negative pressure when the guide wire is withdrawn Suction thrombus, but the catheter is difficult to re-enter the blood vessel without a guide wire

Method used

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  • Suction catheter with side hole and device
  • Suction catheter with side hole and device
  • Suction catheter with side hole and device

Examples

Experimental program
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Effect test

Embodiment 1

[0039] Embodiment 1 provides a suction catheter with side openings to solve the problems in the prior art. according to figure 1 , the suction catheter with side openings includes a guide section 100, a suction section 200 and a delivery section 300, the three are arranged in sequence along the same axis, and the order of arrangement is that the guide section 100 is first set from the distal end to the proximal end, and then It is the suction section 200 and the delivery section 300 in sequence.

[0040] The guide section 100 is arranged at the distal end of the suction catheter, and the end port of the guide section 100 is provided with a through hole 110 for and only for the guide wire to pass through; the shape and diameter of the inner surface of the through hole 110 meet: when After the guide wire passes through, there is no gap between the inner wall of the through hole 110 and the guide wire. In order to make the requirement that there is no gap between the through ho...

Embodiment 2

[0059] Embodiment 2 provides a side-opening suction device, which not only includes the side-opening suction catheter itself that is finally introduced into the blood vessel, but also includes other devices or components necessary for the implantation process. Specifically, the side-opening suction device includes the side-opening suction catheter of any technical solution in the above-mentioned embodiment 1, and also includes a guide wire, a thrombectomy bracket and / or a single-curved catheter and / or a cobra catheter and / or syringe and / or catheter adapter.

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Abstract

The invention relates to a suction catheter with side holes and a device. The suction catheter comprises a guiding section, a suction section and a conveying section which are sequentially arranged from the far end to the near end. The guide section is approximately conical and is arranged at the far end of the suction catheter, and a through hole only allowing a guide wire to penetrate through is formed in a port of the tail end of the guide section; at least one suction hole is formed in the side wall of the suction section and is used for generating negative pressure on the side wall; the conveying section comprises an inner cavity for a guide wire to penetrate through; the guiding section and the suction section are connected in a smooth transition mode, and the suction section and the conveying section are connected in a smooth transition mode. According to the suction catheter, ideal negative pressure can be generated on the side wall when thrombus is sucked, the thrombus extraction support can be guided out of the side wall of the suction catheter through the design of the side opening holes, and good mechanical thrombus extraction operation can be conducted on the thrombus attached to the inner wall of a blood vessel.

Description

technical field [0001] The invention relates to the field of medical devices for interventional operations, in particular to a suction catheter and a device with side openings. Background technique [0002] Thrombus is a clot formed by blood in the heart of the cardiovascular system or on the surface of a blood vessel outside the heart under pathological conditions. It is generally composed of red blood cells, fibrin, platelets, and white blood cells in different proportions. Thrombosis spreads throughout the entire cardiovascular system, affecting tissues and organs throughout the body, not limited to myocardial infarction, deep vein thrombosis, or cerebrovascular thrombosis. Thrombosis can occur in blood vessels anywhere in the body. If the thrombus forms a blockage in the blood vessels of the human body and interrupts the blood flow, it is easy to cause myocardial infarction, stroke and other life-threatening diseases. [0003] Existing treatment techniques are mainly me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/22A61M25/00A61N5/10
Inventor 刘福全
Owner BEIJING SHIJITAN HOSPITAL CAPITAL MEDICAL UNIVERSTY
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