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An impact blood collection device and a blood collection pen

An impact type, lancet technology, applied in the field of medical devices, can solve the problems of long running stroke of the needle seat, compression of the needle spring, and achieve the effects of prolonging the service life, avoiding ineffective work, puncturing stability and high puncturing accuracy

Active Publication Date: 2021-06-01
PROMISEMED HANGZHOU MEDITECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to solve the technical defects in the prior art that the needle seat has a long running stroke and that the needle spring is ineffectively compressed during the replacement of the blood collection needle.

Method used

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  • An impact blood collection device and a blood collection pen
  • An impact blood collection device and a blood collection pen
  • An impact blood collection device and a blood collection pen

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Embodiment Construction

[0050] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0051] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "inner", "outer" etc. Orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0052] In the description of the...

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Abstract

The invention relates to the technical field of medical devices, and specifically discloses an impact blood collection device and a blood collection pen, wherein the impact blood collection device includes a base, a front cover, a needle seat, a first elastic member and an impact block, and the impact block includes at least The first state is attached to the tail end of the needle hub and the second state is separated from the tail end of the needle hub. Driving the needle base to move from the first position to the puncture position. In the above structure, during the movement of the impact block to the ready-to-trigger state, the needle holder remains at the first position, which changes the technical idea that the state of the needle holder in the prior art will change with the arming and ready-to-trigger state, so that the needle holder The stroke is shorter, the puncture stability and puncture accuracy are higher; during the process of replacing the disposable blood collection needle, the needle seat is kept at the first position, which avoids the invalid work of the elastic parts and helps to prolong the service life of the blood collection needle.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an impact blood collection device and a blood collection pen. Background technique [0002] The blood collection pen used for peripheral blood collection is a commonly used medical device, which is used with a disposable blood collection needle. In the prior art, usually, the disposable blood collection needle is installed in the needle holder, and the needle holder drives the blood collection needle to achieve puncture under the driving action of the elastic member. [0003] For example, the Chinese Utility Model Patent No. CN211066647U discloses a negative pressure painless blood collection pen, in which the blood collection needle is installed in the needle seat and the blood collection needle can be replaced. The stroke is long, and the frictional resistance is large during the stroke; in addition, every time the blood collection needle is replaced, the needle holder...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/151
CPCA61B5/150022A61B5/150175A61B5/15111A61B5/15117
Inventor 胡超宇
Owner PROMISEMED HANGZHOU MEDITECH
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