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Disposable transfusion needle

A disposable, infusion needle technology, applied in the direction of needles, instruments introduced into the body, etc., can solve the problems of unreliable positioning and prone to broken needles, and achieve the effects of avoiding microbial contamination, avoiding needle tube breakage, and isolating and protecting the puncture surface

Inactive Publication Date: 2012-10-03
张焕娥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a disposable infusion needle to solve the problem of unreliable positioning and prone to broken needles when the existing infusion needle is connected to the puncture connector of the indwelling device

Method used

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  • Disposable transfusion needle
  • Disposable transfusion needle
  • Disposable transfusion needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment one: see attached Figure 2~3 as shown,

[0039] The disposable infusion needle consists of a needle tube 3, a needle handle 4 fixed on the rear end of the needle tube 3, a conduit 5 set on the needle handle 4, and a connecting seat connected to the end of the conduit 5.

[0040]The needle handle 4 is provided with a position-limiting structure that acts on the puncture-type connector 7 of the indwelling device and limits the lateral movement of the needle handle 4 relative to the puncture-type connector 7 of the indwelling device. Specifically, the limiting structure is an abutment surface 6 provided on the front end of the needle handle 4 facing the piercing connector 7 of the indwelling device. After the infusion needle of this embodiment is assembled with the puncture-type connector 7 of the indwelling device, the abutment surface 6 abuts against the end surface of the puncture-type connector 7 of the indwelling device in the axial direction of the needl...

Embodiment 2

[0042] Embodiment two: see attached Figure 4~5 as shown,

[0043] The disposable infusion needle consists of a needle tube 3, a needle handle 4 fixed on the rear part of the needle tube 3, a conduit 5 set on the needle handle 4, and a connecting seat connected to the end of the conduit 5.

[0044] The needle handle 4 is provided with a position-limiting structure that acts on the puncture-type connector 7 of the indwelling device and limits the lateral movement of the needle handle 4 relative to the puncture-type connector 7 of the indwelling device. Specifically, the position-limiting structure is a cap structure 8 on the end surface of the piercing connector 7 facing the indwelling device on the needle handle 4. The cap structure 8 consists of an abutment surface 9 perpendicular to the axial direction of the needle tube 3 and the outer periphery of the abutment surface 9. It consists of a ring of flanges 10 protruding toward the front end; the size of the cap structure 8 m...

Embodiment 3

[0046] Embodiment three: see attached Figure 6 as shown,

[0047] The disposable infusion needle consists of a needle tube 3, a needle handle 4 fixed on the rear end of the needle tube 3, a conduit 5 set on the needle handle 4, and a connecting seat connected to the end of the conduit 5. The difference from Embodiment 2 is that: the needle tube 3 is also covered with a puncture connector sheath 11, the opening of the puncture connector sheath 11 faces the front end, and the puncture connection between the inner cavity and the indwelling device The ends of the part 7 are matched; the limit structure abuts against the outer wall of the piercing connector sheath 11 . After the needle tube is pulled out from the puncture-type connector 7 of the indwelling device, the puncture-type connector sheath 11 can continue to indwell and cover the puncture-type connector 7 of the indwelling device. The inner side of the piercing connector sheath 11 can also be provided with anti-slip lin...

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Abstract

A disposable transfusion needle comprises a needle tube and a needle handle arranged at the rear part of the needle tube and is characterized in that a limiting structure which acts on a puncturing type connecting piece of an indwelling device and limits the needle handle to do lateral movement relative to the puncturing type connecting piece of the indwelling device is arranged on the needle handle. The disposable transfusion needle and the end surface of the puncturing type connecting piece of the indwelling device are in abut joint to form a whole, breakage force acting on the transfusion needle can be lowered or eliminated when the limbs of a patient or a transfusion device moves, so that the occurrence of breakage phenomenon of the needle tube can be effectively reduced.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a disposable intravenous infusion needle, which is particularly suitable for use in conjunction with indwelling devices such as indwelling needles and central venous catheters. Background technique [0002] The main function of the intravenous infusion needle is to puncture the vein to establish the infusion channel, and the supporting infusion equipment is used for infusion and blood transfusion. The existing intravenous infusion needle is composed of a needle tube, a needle handle, a catheter and a connecting seat. A connecting seat is arranged on one end, and the connecting seat is used to connect with the infusion set; the needle handle mainly has two kinds of single wing and double wing, which are arranged at the rear of the needle tube, and the function is to facilitate the nurse to hold the needle and puncture. [0003] In the actual clinical infusion, indwelling devices su...

Claims

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Application Information

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IPC IPC(8): A61M5/158
Inventor 张焕娥孙玉花
Owner 张焕娥
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