Tube protective sleeve of single-wing transfusion needle

A technology for protective sleeves and infusion needles, applied to needles, devices introduced into the body, etc., can solve the problems of poor sliding, high production cost, high scrap rate, and reduce production costs, improve the unfavorable situation of small gaps and difficult processing, and scrap rate reduction effect

Inactive Publication Date: 2006-02-08
ZHEJIANG KINDLY MEDICAL DEVICES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, in order to prevent the needle tube 1 from falling out from the slit 74 on the sheath 7, the gap requirement is generally small, which not only makes the two wings of the butterfly needle overlap or the single-wing needle handle 3 slides in the slit 74 Poor performance, more importantly; small gaps bring difficulty to production an

Method used

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  • Tube protective sleeve of single-wing transfusion needle
  • Tube protective sleeve of single-wing transfusion needle
  • Tube protective sleeve of single-wing transfusion needle

Examples

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Embodiment Construction

[0020] Such as Figure 4 As shown, the present invention is the needle tube protective cover used for single-wing infusion needles, the front and rear ports 71 and 72 of the protective cover are connected, and the length L1 of the protective cover 7 is greater than that of the needle tube 1 after it is fixedly connected with the needle hub 2. length, a slot 73 for positioning the root of the single-wing needle handle 3 is opened on the wall surface of the rear end of the protective cover 7, and a slit 74 is provided from the front edge of the slot 73 to the front port 71 of the protective cover 7 , the front port 71 of the protective cover 7 is an oblique cut from front to rear, and the slit 74 is located at the rear end 711 of the oblique cut. Its characteristics are:

[0021] The slit is in the shape of a detour, that is, the slit from the front port of the protective cover to the front of the slot includes a first straight track 741, a guide ramp 742, an offset straight tr...

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Abstract

The invention relates to a protective sheath of needle tube used in the single wing transfusion needle, whose front and back two ends are connected, and the wall of the back end of said protective sheath has a slotted hole for fixing the root of the single wing needle; a slit is arranged from the leading edge of said slotted hole to the front port of sheath which is characterized in its shape of tortuous channel that said slit comprises a first straight channel, a guide inclined channel, a offset straight channel, a tortuous inclined channel and a second straight channel in the sequence from the front port of protective sheath to the front edge of slotted hole while a neck part which is displaced to the second straight channel slit is formed on the second channel near the slotted hole. The invention utilizes the aforementioned technical project that processing the slit of said protective sheath into the shape of tortuous channel as the slit can hole the needle tube for improving the processing on the small slit, reducing the disability rate, providing the base to the patch production, and reduce the cost. Said invention can be widely used in vacuum blood taking needle and machine blood taking needle.

Description

technical field [0001] The invention relates to a needle tube protective cover of a single-wing infusion needle. Background technique [0002] The single-wing infusion needle is an indispensable medical device for intravenous infusion and blood collection. Such as figure 1 As shown, the existing single-wing infusion needle includes a needle tube 1, an infusion tube 4, a needle base 2, and a single-wing needle handle 3. The needle tube 1 is directly bonded to the front end of the needle base 2, and the infusion tube 4 is fixedly connected to the needle base. 2, and the side edge of the needle holder 2 is fixedly connected with a single-winged needle handle 3. In addition, the needle tube 1 is covered with a needle tube sheath 6 before it is used. [0003] Before the single-wing infusion needle is used, the needle tube sheath 6 is pulled out. After the intravenous infusion is completed, because of safety concerns, the needle tube sheath 6 is not suitable for reuse, so the n...

Claims

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Application Information

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IPC IPC(8): A61M5/158A61M5/32
Inventor 林森李军生
Owner ZHEJIANG KINDLY MEDICAL DEVICES
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