Local circulation type thrombus removing device

A circulatory and thrombus technology, applied in the field of medical devices, can solve problems such as organ embolism, damaged vascular intima, embolus nuclei or old thrombus with unsatisfactory removal effect, and achieve the effect of preventing damage and avoiding residue

Inactive Publication Date: 2015-05-06
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the wire also has the potential to scratch the lining of blood vessels
[0008] The above-mentioned prior art still has deficiencies in the following three aspects: 1. The effect of removing thrombus or old thrombus is not ideal, and the removal rate is low; 2. The intima of the blood vesse

Method used

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  • Local circulation type thrombus removing device
  • Local circulation type thrombus removing device
  • Local circulation type thrombus removing device

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Embodiment Construction

[0034] see figure 1 , with reference to Figure 2-Figure 6 , the local circulation thrombus remover of the present invention, comprising: an impeller assembly 1 for breaking thrombus, a head end protection tube 2, an inner tube 3, an outer tube 4, a first Y-shaped valve 5 and a second Y-shaped valve 6.

[0035] Cooperate see Figure 6 , image 3 , the above-mentioned impeller assembly 1 for breaking thrombus further includes: a transmission square shaft 11 connected to the motor drive, a transmission shaft 12 connected in front of the transmission square shaft, an impeller shaft 13 connected in front of the transmission shaft, An impeller 14 installed on the front end of the impeller shaft.

[0036] Cooperate see Figure 4 , Figure 5 , the head end protection tube 2 is set on the head end of the impeller assembly, the front end opening of the head end protection tube forms a suction plug port 21, the side wall of the head end protection tube is respectively provided wit...

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Abstract

The invention discloses a local circulation type thrombus removing device. The local circulation type thrombus removing device mainly comprises an impeller assembly used for smashing the thrombus, a head end protective pipe, an inner pipe, an outer pipe, a first Y-shaped valve and a second Y-shaped valve. A first annular cavity is formed between the inner pipe and the impeller assembly, a second annular cavity is formed between the outer pipe and the inner pipe, the first Y-shaped valve is provided with a fluid infusion connector used for being connected with a fluid infusion pump, the fluid infusion connector is communicated with the second annular cavity, the second Y-shaped valve is provided with a thrombus removing connector used for being connected with a thrombus sucking pump, and the thrombus removing connector is communicated with the first annular cavity. The local circulation type thrombus removing device can improve the thrombus removing rate, prevent the venous intima from being injured, completely discharge the thrombus broken grains out of the body and prevent normal blood from excessive loss. The local circulation type thrombus removing device is especially suitable for removing the human body deep femoral vein thrombus by the adoption of the percutaneous minimally invasive surgery.

Description

technical field [0001] The invention relates to a medical device, in particular to a partial circulation thrombus remover. Background technique [0002] Due to changes in dietary structure and other reasons, the incidence of thrombosis in people is on the rise, especially the number of cases of deep vein thrombosis in the lower extremities is increasing. Thrombus deposition in veins can cause blood flow disturbance and stasis, resulting in thrombophlebitis within the veins. For patients with chronic iliofemoral vein thrombosis, venous thrombosis can lead to long-term swelling of the lower limbs, varicose veins, and ulceration. In addition, after the venous thrombus falls off, it may also transfer to other parts and organs of the body, resulting in serious complications. For example, a thrombus in a vein travels through the vein and deposits in the lung, causing a pulmonary embolism that can lead to death. Therapeutic methods for thrombosis include: 1. Internal medicine tr...

Claims

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Application Information

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IPC IPC(8): A61B17/22
CPCA61B17/22012A61B2017/00238A61B2017/22079A61B2018/0041
Inventor 闫士举
Owner UNIV OF SHANGHAI FOR SCI & TECH
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