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Automatic syringe needle protecting and sealing integrated blood qi collecting needle

A needle and automatic technology, applied in the field of medical devices, can solve the problems affecting the accuracy of the test results, air entering the blood collection device tube, etc., and achieve the effects of avoiding iatrogenic damage, not easy to drop and lose, and low difficulty in the preparation process

Pending Publication Date: 2019-07-12
杨立新
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the device can prevent the blood sample from contacting with the air, the operation of the rubber blocking block to block the needle may still cause air to enter the blood collection device tube, affecting the accuracy of the test results

Method used

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  • Automatic syringe needle protecting and sealing integrated blood qi collecting needle
  • Automatic syringe needle protecting and sealing integrated blood qi collecting needle
  • Automatic syringe needle protecting and sealing integrated blood qi collecting needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] See figure 1 and figure 2 , figure 1 It is a cross-sectional view of the automatic needle protection-sealing integrated blood gas collection needle of embodiment 1 in an unused and assembled state, figure 2 It is a cross-sectional view of the automatic needle protection-sealing integrated blood gas collection needle of Example 1 in a disassembled state.

[0052] The automatic needle protection-sealing integrated blood gas collection needle is provided with a syringe 1 , a piston 2 , a push-pull rod 3 , a membrane switch 4 , a needle 5 and an outer sleeve 6 .

[0053] The piston 2 is assembled on the distal end of the push-pull rod 3, and the piston 2 is located inside the syringe 1, and the operation of the push-pull rod 3 can drive the piston 2 to move in the syringe 1 toward the distal end or the proximal end. The distal end of the syringe 1 is assembled with the proximal end of the needle 5 .

[0054] The syringe 1 includes a syringe base 11 at the far end and ...

Embodiment 2

[0066] See Figure 6 , Figure 6 It is a cross-sectional view of the automatic needle protection-sealing integrated blood gas collection needle of Example 2 in an unused and assembled state.

[0067] The automatic needle protection-sealing integrated blood gas collection needle is provided with a syringe 1 , a piston 2 , a push-pull rod 3 , a joint 7 , a needle 5 and an outer sleeve 6 .

[0068] The piston 2 is assembled on the distal end of the push-pull rod 3, and the piston 2 is located inside the syringe 1, and the operation of the push-pull rod 3 can drive the piston 2 to move in the syringe 1 toward the distal end or the proximal end.

[0069] The syringe 1 includes a syringe base 11 at the far end and a syringe main body 12 at the proximal end. The needle 5 includes a needle core 51 and a needle seat 52 , and the needle seat 52 is fixed on the outer wall of the proximal end of the needle core 51 . The distal end of the syringe 1 is assembled with the proximal end of ...

Embodiment 3

[0082] See Figure 9 , Figure 9 It is a cross-sectional view of the automatic needle protection-sealing integrated blood gas collection needle of Example 3 in an unused and assembled state.

[0083] The structure of the automatic needle protection-sealing integrated blood gas collection needle in this embodiment is basically the same as the automatic needle protection-sealing integrated blood gas collection needle described in Example 1, the only difference is that the membrane switch 4 is located in the syringe In the channel inside seat 51.

[0084] That is to say, the position of the membrane switch 4 is not limited to the embodiment 1, in fact, it can be located at any position inside the syringe 1, but the method described in the embodiment 1 is still the best choice, which can ensure that the membrane switch 4 is fully positioned during the blood collection process. Open, and isolate all the blood samples of the syringe seat 11, improve the accuracy of the detection r...

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Abstract

The invention relates to an automatic syringe needle protecting and sealing integrated blood qi collecting needle. The automatic syringe needle protecting and sealing integrated blood qi collecting needle is provided with a syringe, a piston, a push-pull rod, a syringe needle and an outer sleeve. The syringe comprises a syringe seat and a syringe body. The syringe needle comprises a needle core and a syringe needle seat with a limiting convex ridge on the outer wall. When the automatic syringe needle protecting and sealing integrated blood qi collecting needle is not used and is assembled, thefar end section of the outer sleeve is located outside the syringe needle seat and the syringe seat, the near end section of the outer sleeve is located outside the syringe body, the far end of the needle core stretches out of an opening in the far end of the outer sleeve, and the near end of the syringe stretches out of an opening in the near end of the outer sleeve. When thrust is applied to the outer sleeve, the outer sleeve slides relative to the syringe. An anti-leakage film is arranged at the position, close to the opening in the far end, in the far end section, a barb convex ridge is arranged on the rear end side of the limiting convex ridge, and a check block is arranged at the connecting portion of the far end section and the near end section. The blood qi collecting needle is further provided with a film switch or maneuvering switch. According to the automatic syringe needle protecting and sealing integrated blood qi collecting needle, iatrogenic injuries can be avoided to the maximum extent, a blood sample is prevented from contaminating the environment, and the accuracy of the detecting result is improved.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an automatic needle protection-sealing integrated blood gas collection needle. Background technique [0002] Arterial Blood Gas Analysis (ABGA) refers to the measurement of the partial pressure of oxygen in human arterial blood P(CO 2 ) and partial pressure of carbon dioxide P(CO 2 ), pH value, electrolytes and other indicators, and then make a corresponding assessment of the human respiratory function and blood acid-base balance. Mechanical ventilation parameters and correction of acid, base, electrolyte imbalance are of great significance. [0003] In the prior art, after blood collection with a blood gas collection needle, the medical staff usually pull out the needle manually and discard it in the medical waste box, and then use the sealing cap to seal the syringe seat. The stabbed person is infected with the patient's germs, causing physical and mental harm to the...

Claims

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Application Information

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IPC IPC(8): A61B5/15A61B5/153
CPCA61B5/15003A61B5/150351A61B5/150641A61B5/153
Inventor 杨立新杨莹张伟星
Owner 杨立新
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