Novel indwelling needle

A new type of indwelling needle technology, applied in the field of medical devices, can solve the problems of low puncture success rate and achieve the effects of increased puncture success rate, convenient operation, and reduced puncture failure

Inactive Publication Date: 2019-01-29
华蓥市明月镇小学
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is: in order to solve the problem of low puncture success

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] like Figures 1 to 2 As shown, this embodiment provides a new type of indwelling needle, which includes a catheter 6 connected in sequence, a puncture needle base body, and a puncture needle 2. The indwelling needle tube 1 is provided with a cavity inside the puncture needle holder 3, and the catheter tube 6 is provided with a stop clamp 7, and one end of the catheter tube 6 is connected with a tee 8, and the other end of the catheter tube 6 communicates with the indwelling needle tube 1 and the cavity , characterized in that: one end of the puncture needle 2 passes through the cavity and the indwelling needle tube 1 sequentially, the puncture needle 2 is threadedly matched with the indwelling needle tube 1, the other end of the puncture needle 2 is provided with a knob 2-1, and the inside of the main body of the puncture needle holder is provided with a plug Mechanism 4, the two sides of the puncture needle base 3 away from the end of the indwelling needle tube 1 are h...

Embodiment 2

[0028] like Figures 1 to 2 As shown, this embodiment has been further improved on the basis of embodiment 1, specifically, the blocking mechanism 4 includes a liquid storage tank 4-1 arranged in the puncture needle seat 3, and the liquid storage tank 4-1 There is a matching piston 4-2 inside, and the piston 4-2 is connected with a piston rod extending to the outside of the puncture needle holder 3, and the liquid storage tank 4-1 is connected with a liquid storage tube 4-1 on the side close to the indwelling needle tube 1. 3. The indwelling needle tube 1 includes a sheathing pipe A1-2 and a pipe B1-1, and the blocking mechanism 4 also includes a pipe C4-4 arranged between the pipe A1-2 and the pipe B1-1. The pipe C4 The nozzle of -4 passes through the pipeline B1-1 and is connected with an elastic bag 4-5 which is arranged inside the pipeline B1-1 and can block the pipeline B1-1, and the pipeline C4-4 communicates with the liquid storage pipe 4-3, and the The elastic bag 4-5...

Embodiment 3

[0031] like Figures 1 to 2 As shown, this embodiment is further improved on the basis of Embodiment 1 and Embodiment 2. Specifically, the end of the piston rod outside the puncture needle base 3 is provided with a cap 4-6.

[0032] It is only necessary to rotate the hedging cap 4-6 to advance the piston rod and retreat the piston rod, and the hedging cap 4-6 increases the contact area between the hand and the piston rod, which is more conducive to pushing the piston 4-2, and the operation is simple and convenient.

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Abstract

The invention discloses a novel indwelling needle, and relates to the technical field of medical apparatus and instruments, for solving the problem that the puncture success rate is low when the indwelling needle is used. The novel indwelling needle comprises a liquid guide pipe, a puncture needle file main body and a puncture needle which are connected in sequence, wherein the puncture needle file main body comprises a puncture needle file and an indwelling needle tube arranged at the outlet of the puncture needle file, a cavity is arranged inside the puncture needle file, a flow-checking clip is arranged on the liquid guide pipe, one end of the liquid guide pipe is connected with a tee joint, the other end of the liquid guide pipe communicates with the indwelling needle tube and the cavity, one end of the puncture needle sequentially passes through the cavity and the indwelling needle tube, the puncture needle is in threaded fit with the indwelling needle tube, a rotary knob is arranged at the other end of the puncture needle, and a plugging structure is arranged inside the puncture needle file main body. The novel indwelling needle is used for intermittent or continuous infusiontreatment, and has the advantages that the puncture success rate is high, the tube closing is convenient, and automatic blood return can be realized when infusion is carried out next time.

Description

technical field [0001] The invention relates to the field of medical devices, and more specifically relates to a novel indwelling needle. Background technique [0002] The indwelling needle is an infusion device that replaces the traditional disposable infusion needle. It is suitable for patients of different ages. It can not only reduce the number of punctures, reduce the workload of doctors, improve work efficiency, but also reduce the physical and psychological tension of patients. Sensation and fear, especially the elderly and infants benefit a lot; at the same time, indwelling for less damage to blood vessels, can effectively avoid blood contamination other than injection, so it is widely used in clinical medicine. [0003] When the traditional indwelling needle is used for infusion, the left hand fixes the skin and the right hand holds the needle for puncture. The needle shaft of the infusion needle is brought into the vein through the puncture needle. Instead, hold t...

Claims

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Application Information

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IPC IPC(8): A61M5/14A61M5/158
CPCA61M5/14A61M5/158
Inventor 甘官千
Owner 华蓥市明月镇小学
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