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Flexible blood sampling device and rigid blood sampling device

A flexible and rigid technology, applied in the field of flexible blood collection devices, to achieve the effect of reducing risks and making the blood collection process safe

Pending Publication Date: 2019-06-18
SHANGHAI JINTA MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the problem in the prior art that all the force acting on the straight needle will be applied to the blood collection needle along the axial direction of the blood collection needle. A flexible blood collection device and a rigid blood collection device are provided. device

Method used

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  • Flexible blood sampling device and rigid blood sampling device
  • Flexible blood sampling device and rigid blood sampling device
  • Flexible blood sampling device and rigid blood sampling device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] like Figure 1-Figure 3 As shown, a flexible blood collection device provided by the present invention includes a needle cover, a blood collection needle 100 and a straight needle 200 . Among them, the blood collection needle 100 is used to pierce the patient's skin into the vein for blood collection, the straight needle 200 is connected and communicated with the blood collection needle 100, the blood collection needle 100 is used to pierce the sealing layer on the vacuum blood collection tube, and the blood in the blood collection needle 100 It is transported into the vacuum blood collection tube to realize the blood collection work of the patient.

[0058] Wherein, the needle sheath includes a needle holding part 300 , a connecting part 400 and a tail needle part 500 connected in sequence.

[0059]The needle holding part 300 is sleeved and fixed on the blood collection needle 100; the tail needle part 500 is sleeved and fixed on the straight needle 200; the connectin...

Embodiment 2

[0069] Embodiment 1 and Embodiment 2 have many identical parts, and these identical parts will not be repeated here.

[0070] like Figure 4 As shown, the main difference between Embodiment 2 and Embodiment 1 is that the connection part 400 of the rigid blood collection device is a non-bendable part, and the axis of the head end 401 and the axis of the tail end 402 of the connection part 400 are not parallel and intersect to form an The included angle is zero. The included angle is preferably between 45 degrees and 90 degrees. In this embodiment, the axis of the head end 401 intersects with the axis of the tail end 402 to form an included angle of 90 degrees, that is, the connection part 400 is an L-shaped structure, so that the blood collection needle 100 and the straight needle 200 are perpendicular.

[0071] In this embodiment, the user can hold the needle holding part 300 to push the blood collection needle 100 into the patient's vein, and then hold the tail needle part ...

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Abstract

The invention discloses a flexible blood sampling device and a rigid blood sampling device. The flexible blood sampling device comprises a needle sleeve, a blood taking needle and a straight needle, wherein the needle sleeve comprises a needle holding component, a connecting component and a tail needle component which are sequentially connected. The needle holding component is fixed on the blood taking needle; the tail needle component is fixed on the straight needle; the connecting component is connected with and communicated with the blood taking needle and the straight needle; the connecting component is provided with a head end and a tail end in the axial direction, the head end is connected with the blood taking needle, the tail end is connected with the straight needle, and the tailend can rotate relative to the head end. The head end and the tail end of the rigid blood sampling device form an included angle which is not equal to zero. Through the above arrangement, the force applied to the blood taking needle in the axial direction of the blood taking needle is reduced, and the risk caused by penetration into a vein too deep is reduced. Meanwhile, through the arrangement ofthe needle holding component and the connecting component, the operation of the blood taking needle and the straight needle is facilitated, and the needle holding component, the connecting componentand the tail needle component are sequentially connected, so that the connecting component is not easy to separate from the blood taking needle and the straight needle, and the blood taking process issafer.

Description

technical field [0001] The invention relates to a flexible blood sampling device and a rigid blood sampling device. Background technique [0002] Existing blood collection devices such as venous needles usually include blood collection needles for puncturing human veins, straight needles for puncturing vacuum blood collection tubes, and needle covers for operating blood collection needles and straight needles. During the process, the medical staff need to hold the needle cover first, and after piercing the human body with the blood collection needle, hold the needle cover and insert the straight needle into the vacuum collection tube. However, in the process of inserting the straight needle into the vacuum collection tube, the vacuum collection tube will exert an axial force parallel to the straight needle on the straight needle, and this force will be transmitted to the blood collection needle through the needle sleeve, because the blood collection needle Coaxial with the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/154
Inventor 毛春元陈贤华
Owner SHANGHAI JINTA MEDICAL
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