Improved Tail Pressing Disposable Safety Blood Collector

A push-type, disposable technology, applied in the direction of sensors, blood sampling devices, medical science, etc., can solve the problem of low reliability of the locking structure, achieve good user experience effects, reasonable structural design, and improve reliability

Active Publication Date: 2021-07-20
STERILANCE MEDICAL SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies in the prior art above, the present invention provides an improved tail-pressing type disposable safety blood collection device, the purpose of which is to solve the problem of low reliability of the locking structure of the original tail-pressing type blood collection device

Method used

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  • Improved Tail Pressing Disposable Safety Blood Collector
  • Improved Tail Pressing Disposable Safety Blood Collector
  • Improved Tail Pressing Disposable Safety Blood Collector

Examples

Experimental program
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Effect test

Embodiment

[0045] Embodiment: An improved tail-pressing type disposable safety blood collection device

[0046] The blood collection device is composed of a shell 1, a needle core 2, a twist cap 11, a spring 3 and a tail cap 4 (see figure 1 and figure 2 ).

[0047] The shell 1 forms an ejection chamber, and the front end of the ejection chamber is provided with a pinhole 9 (see image 3 and Figure 4 ), there is a gap in the pinhole 9 (see Figure 4 , not marked). The needle core 2 is located in the ejection cavity, and the shell 1 is provided with two elastic arms 5 extending inwards (see image 3 , Figure 4 , Figure 9 , Figure 11 and Figure 15 ), the elastic arm 5 is provided with a hook 6 for locking the needle core 2 (see Figure 15 and Figure 16 ), the needle core 2 is provided with an engaging surface 8 corresponding to the hook 6 (see Figure 5 , Image 6 , Figure 15 and Figure 16 ). In the ready-to-fire state, the front end of the spring 3 presses against ...

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Abstract

An improved tail push-type disposable safety blood collection device, including a shell, a needle core, a spring, and a tail cap. It is designed with structures such as narrow grooves, wide grooves, transition slopes and radial protrusions, so that the rear end face for rear end limit, transition slope or arc for climbing is formed on the forward movement path of the outer hook relative to the accommodating cavity surface and the locking end surface for locking the front end. In the ready-to-launch state, the outer hook is hooked on the rear end surface, so that the tail cover is at the rear end limit position relative to the accommodating cavity. When the tail cover is pushed forward, the outer hook is Climb along the transition slope or curved surface until it crosses the radial protrusion. In the state after launch, the outer hook is hooked on the locking end surface of the radial protrusion, so that the tail cover is at the front end locking position relative to the housing cavity. This solution solves the problem of low reliability of the original locking structure.

Description

technical field [0001] The invention relates to the field of medical blood collection instruments, in particular to an improved tail-pressing type disposable safety blood collection device. The blood collection device improves the original blood collection device, and improves the safety and reliability of disposable use. Background technique [0002] Among medical blood collection devices, disposable blood collection devices are popular among medical staff and patients for their small size, safe use, and convenient operation. They are currently widely used in various medical institutions and diabetic patients. This kind of blood collection device has its own ejection mechanism, compact structure, and one-time use as a whole, which is safe and convenient, so it has strong market development potential. [0003] Chinese patent CN108186029A discloses an application for an invention patent titled "Tail Push Type Disposable Safety Blood Sampling Device". In this patent, an acti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/15
CPCA61B5/15A61B5/150183A61B5/150595
Inventor 施国平王祥生张金权
Owner STERILANCE MEDICAL SUZHOU
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