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Indwelling needle and indwelling needle assembly

A technology for indwelling needles and assembling bodies, which is applied in the direction of needles and instruments introduced into the body, and can solve the problems of increasing the chance of blood contamination

Active Publication Date: 2018-12-21
刘明源
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides an indwelling needle and an indwelling needle assembly, the main purpose of which is to solve the problem that the handle will increase the probability of blood contamination when the handle drives the sealing piston to move

Method used

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  • Indwelling needle and indwelling needle assembly
  • Indwelling needle and indwelling needle assembly

Examples

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Embodiment Construction

[0045] The indwelling needle and the indwelling needle assembly according to the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0046] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0047] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally...

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PUM

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Abstract

The invention discloses an indwelling needle and an indwelling needle assembly, relates to the technical field of infusion devices and aims to improve the sealing property of the indwelling needle. The indwelling needle includes a hollow needle base, a sealing piston, a transmission mechanism and a rotary handle, the sealing piston is slidably arranged in the needle base, the transmission mechanism is arranged in the needle base, the rotary handle is located outside the needle base, and the rotary handle is connected with the sealing piston through the transmission mechanism. The rotary handlerotates around a rotation shaft, the rotary handle does not move in the extending direction of the needle base, the transmission mechanism drives the sealing piston to do reciprocating sliding in theextending direction of the needle base, and the direction of a rotary shaft is parallel to the extending direction of the needle base. The service performance of the indwelling needle is improved.

Description

technical field [0001] The invention relates to the technical field of transfusion devices, in particular to an indwelling needle and an indwelling needle assembly. Background technique [0002] The use of indwelling needles can reduce the pain caused by repeated venipuncture and the fear of puncture, facilitate clinical drug matching, rescue medication for acute and critical patients, reduce the workload of nurses, especially reduce the pain of infants and young children. [0003] Wherein, the indwelling needle mainly includes a hollow needle seat with a three-way structure, and a sealing piston arranged in the needle seat. The sealing piston is slidably arranged in the needle seat. One end of the sealing piston is connected to the handle through a connecting rod, The reciprocating movement along the extending direction of the needle seat (ie, the axial direction of the needle seat) realizes the reciprocating sliding of the sealing piston. During intravenous injection, aft...

Claims

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Application Information

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IPC IPC(8): A61M5/158
CPCA61M5/158
Inventor 刘明源
Owner 刘明源
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