Lancet device with detachable lancet

The technology of a blood collection needle and a driving device, which is applied in the field of medical devices, can solve the problems of trouble in use, injury to medical personnel at the needle site, cross-contamination, etc., and achieves the effect of avoiding cross-contamination and stabbing hands.

Active Publication Date: 2022-07-01
JILIN UNIV FIRST HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, in order to realize the replaceability of the blood collection needle, a needle seat is generally provided in the blood collection pen, and a screw cap is provided at the end of the blood collection pen, and the needle seat can be exposed by removing the cap, and then the The blood collection pen is plugged into the needle seat and then the cap is installed on the blood collection pen. After the puncture work is completed, the pen cap is removed again, and then the blood collection needle is replaced. The cap needs to be installed and disassembled every time, which is troublesome to use, and the hands of the medical staff will touch the needle part of the blood collection needle when removing the used blood collection needle, which may cause cross contamination when the medical staff takes a new blood collection needle again , and the needle may cause injury to the medical staff when the medical staff takes off the blood collection needle, so it is necessary to improve the blood collection pen

Method used

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  • Lancet device with detachable lancet
  • Lancet device with detachable lancet
  • Lancet device with detachable lancet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The present invention provides a lancet device with a separable lancet, refer to Figure 1-Figure 12 , as a specific embodiment, including a pen body 1 and a needle holder 2, the pen body 1 includes a first pen body 1a, a second pen body 1b arranged at intervals along the axial direction, and a connection between the 1a and the second pen body 1b. The connecting part 1c of the pen body 1b, the needle base 2 is arranged between the first pen body 1a and the second pen body 1b, and the second pen body 1b is provided with a first guide channel 3 along the axial direction, the said A second channel 21 for installing a blood collection needle is provided through the needle seat 2 , and the needle seat 2 has a first state in which the second channel 21 is coaxial with the first guide channel 3 and the second channel 21 In the second state located outside the range of the first pen body 1a and the second pen body 1b, the needle holder 2 is configured to be able to switch betwe...

Embodiment 2

[0040] In order to improve the safety of the device, as a further improvement, the present invention provides a lancet device with a separable lancet, refer to figure 2 , Figure 5-Figure 12 , the difference from the first embodiment is that at least one opening 210 is provided on the side wall of the second channel 21 close to one end of the first guide channel 3, and the opening 210 is provided with an elastic arm 51, so The end portion of the elastic arm 51 is provided with a clip portion 510, the elastic arm 51 is connected with a driving member 6, and the driving member 6 can slide back and forth in the axial direction of the second channel and has a first position and a second position. In two positions, when the driving member 6 is in the first position, the engaging portion 510 extends into the second channel, and when the driving member 6 is in the second position, the engaging portion 510 extends out the second channel.

[0041] Further, as a specific embodiment, ...

Embodiment 3

[0048]It can be understood that, since the impact speed of the striker bar 41 is related to the accumulated potential energy of the third compression spring 48, but with the use of the third compression spring, the elastic force of the third compression spring 48 will also change. The obtained rebound force will also be attenuated accordingly, so it is difficult to grasp the rebound of the blood collection needle to the second channel and stay in the second channel in use. In order to solve this problem, as a further improvement, the present invention A lancet device with a detachable lancet is provided, refer to Figure 7 , the difference from the second embodiment is that a working cavity is also provided on the side of the first pen body close to the needle base 2, and a first clamping claws are provided on the opposite sides of the channel 19 in the working cavity. 16. The end of the driving member 6 is provided with a second clamping claw 62 corresponding to the two first...

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PUM

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Abstract

The present invention provides a lancet device with a separable lancet, comprising a pen body and a needle holder, the pen body comprising a first pen body, a second pen body and a connecting part, and the needle holder is arranged on the first pen body and the needle holder. Between the second pen bodies, a first guide channel is arranged in the second pen body along the axial direction, and a second channel is arranged in the needle seat, the needle seat has a first state and a second state, and the first pen body A striker assembly is provided, the striker assembly including a striker rod coaxial with the first guide channel, the striker rod being configured to be capable of knocking the needle inside the needle hub when the needle hub is in the first state. The blood collection needle is bumped into the first guide channel, and the blood collection needle is slid in the first guide channel to form a puncture action. This setting method can avoid the process of repeatedly disassembling and assembling the pen cap, and remove and install the blood collection needle until the When the needle seat is used, the medical staff does not need to touch the needle head of the blood collection needle, which can effectively avoid the phenomenon of cross-contamination and hand stab wounds.

Description

technical field [0001] The present invention generally relates to the technical field of medical devices, in particular to a lancet device with a separable lancet. Background technique [0002] The lancet used for peripheral blood collection is a commonly used medical device. The lancet is a blood collection device used in conjunction with a disposable lancet. The lancet can be reused, and the lancet is only for one-time use in order to avoid cross-infection. . The development of lancing pens has a history of decades, and the improvement of lancing pens has also gone through many stages. At present, lancing pens are gradually becoming mature. [0003] In the prior art, in order to realize the replaceability of the lancet, a needle seat is generally provided in the lancet, and a threaded cap is provided at the end of the lancet. The needle seat can be exposed by removing the cap, and then the The lancet is plugged into the needle holder, and then the cap is installed on the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/151
CPCA61B5/15101A61B5/15113A61B5/15186A61B5/150022A61B5/150206
Inventor 刘颖刘双刘欢
Owner JILIN UNIV FIRST HOSPITAL
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