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Blood perfusion device

The technology of a blood perfusion device and a blood nozzle is applied in the field of blood perfusion devices, which can solve the problems of complex process, high rejection rate and high processing cost, and achieve the effects of simple processing technology, lower rejection rate and lower processing accuracy.

Inactive Publication Date: 2012-06-13
重庆希尔康血液净化器材研发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After two years of production practice, the structure requires very high precision in mold manufacturing and processing; the scrap rate during injection molding is relatively high, and the production process requires special equipment, the process is complicated, and the processing cost is relatively high.

Method used

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  • Blood perfusion device
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Embodiment Construction

[0015] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0016] Such as figure 1 , figure 2 , image 3 As shown, a hemoperfusion device is composed of a middle cylinder (1), an end cap (2), a small cap (3), a filter screen (4) and a gland (5). The two ends of the middle cylinder (1) are respectively sealed by an end cap (2), and the center of the end cap (2) is provided with a blood mouth (2a), and the blood mouth (2a) is sealed by a small cap (3). A filter screen (4) is provided between the end cover (2) and the end surface of the middle cylinder (1), and a flat pad (6) is provided between the end cover (2) and the filter screen (4). (2) Two raised waterproof lines (2b) are provided on the end surface in contact with the flat pad (6), and the gland (5) is threadedly matched with the end of the middle cylinder (1), Grooves (5a) are evenly distributed axially on the outer peripheral surface. The edge of the gl...

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Abstract

The invention discloses a blood perfusion device. A filter screen (4) is arranged between an end cover (2) and the end face of a middle barrel (1), a flat cushion (6) is arranged between the end cover (2) and the filter screen (4), the end face where the end cover (2) is contacted with the flat cushion (6) is provided with two protruding water-proof lines (2b), a press cover (5) is in threaded match with the end portion of the middle barrel (1), the edge of the press cover (5) extends to an outer end to form a protective ring (5b), and the inner wall of the press cover (5) is provided with an annular step face limiting the outer edge of the end cover (2) so as to enable the end cover (2) to be tightly pressed on a barrel opening of the middle barrel (1). The blood perfusion device adopts the threaded match for sealing, processing technology is simple, production process does not require special equipment, and sealing performance is good. The processing technology is simplified, so that the blood perfusion device lowers processing precision, greatly reduces defective rate and saves production cost.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a hemoperfusion device for blood purification. Background technique [0002] In recent years, blood purification therapy has been rapidly developed and popularized in our country. Among them, hemoperfusion is one of the important ways of blood purification. At present, hemoperfusion technology is widely used clinically, not only has a good curative effect on severe poisoning and drug poisoning, but also can be used in the treatment of many chronic intractable and difficult diseases. Therefore, the demand for disposable hemoperfusion devices is increasing year by year. [0003] During the blood purification process, the hemoperfusion device is connected in series in the circulating blood circuit leading out of the body. When the blood flows through the tank, the adsorbent absorbs the toxic substances in the blood, and the purified blood enters the internal circulation again. Ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M1/14
Inventor 罗章凯
Owner 重庆希尔康血液净化器材研发有限公司