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Positive-pressure slow-release automatic sealing device for indwelling needle

An automatic sealing and indwelling needle technology, which is applied in the direction of needles, instruments introduced into the body, valves, etc., can solve the problems of thrombus formation and blood coagulation, and achieve the effects of avoiding pressure, comfortable and convenient use, and convenient operation

Inactive Publication Date: 2021-11-02
常熟市精亮微医疗器械科技有限公司
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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 to provide a simple and reasonable structure, simple and convenient process, easy to manufacture, easy to operate, conform to the existing infusion standards and can solve the defects involved in the above-mentioned background technology, overcome the risks existing in the background technology, and effectively solve the problem of intravenous indwelling needles. A kind of indwelling needle positive pressure slow-release automatic sealing device for the problem of blood coagulation, thrombus formation or blockage during use

Method used

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  • Positive-pressure slow-release automatic sealing device for indwelling needle
  • Positive-pressure slow-release automatic sealing device for indwelling needle
  • Positive-pressure slow-release automatic sealing device for indwelling needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment one: see attached figure 1 Shown:

[0029] An indwelling needle positive-pressure slow-release automatic closing device, which needs to be connected in series with the indwelling needle infusion channel. The conversion device and the energy storage liquid storage device; the energy storage liquid storage device automatically closes the indwelling needle infusion channel when it opens and slowly releases its internal storage liquid; the energy storage liquid storage device at least includes a liquid storage cylinder 14, a storage tank Energy spring 13, a piston 11 with an infusion channel opening at the front end; the indwelling needle positive pressure slow-release automatic closing device has an indwelling needle long conduit input interface or / and output interface, and the indwelling needle long conduit input interface is located at the rear of the piston 11 .

[0030]In this example, the piston 11 cooperates with the inner cavity of the liquid storage cy...

Embodiment 2

[0031] Embodiment two: see attached figure 2 , 3 Shown:

[0032] An indwelling needle positive pressure slow-release automatic closing device, including a liquid storage cylinder 14, a piston 11, a piston seat 12, an energy storage spring 13, a spring limit device 15, an output part 1, the bottom of the liquid storage cylinder 14 and the output part 1 The seal 5 between; the front end of the piston 11 and the piston seat 12 is equipped with an infusion channel opening; the piston 11 is sleeved on the piston seat 12, and the rear part of the piston seat 12 has a pull rod and a handle 16 or / and a support frame 17, The rear part of the pull rod is provided with an infusion infusion interface or a long catheter connection port of an indwelling needle; the pull rod passes through the spring limiter 15, and the energy storage spring 13 is located between the piston seat 12 and the spring limiter 15; the seal 5 is provided with an infusion hole 6, and the bottom wall 7 of the inne...

Embodiment 3

[0036] Embodiment three: see attached Figure 4 Shown:

[0037] An indwelling needle positive pressure slow-release automatic closing device is assembled with an indwelling needle three-way catheter seat 19, and the liquid inlet end of the indwelling needle three-way catheter seat 19 is the output part 1 of the indwelling needle positive pressure slow-release automatic closing device The indwelling needle positive pressure slow-release automatic closing device includes an output part 1 and a liquid storage cylinder 14; the inner cavity of the liquid storage cylinder 14 is provided with an energy storage spring 13, a piston 11 with an infusion channel opening and a piston seat 12, and the spring The limit device 15 limits the energy storage spring 13 in the liquid storage cylinder 14, the energy storage spring 13 is located between the piston seat 12 and the spring limit device 15, and acts on the piston seat 12 to form an energy storage liquid storage device; The piston 11 is...

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Abstract

The invention discloses a positive-pressure slow-release automatic sealing device for an indwelling needle. The positive-pressure slow-release automatic sealing device for the indwelling needle needs to be connected into an infusion channel of the indwelling needle in series and comprises an infusion channel conversion device and an energy and liquid storage device. The infusion channel conversion device is at least provided with three convertible liquid passages, namely an open liquid passage, a slow-release liquid passage and a closed liquid passage; the energy and liquid storage device can automatically close an infusion channel of the indwelling needle while being started to slowly release liquid stored in the energy and liquid storage device. The invention aims to provide an infusion apparatus which is simple and reasonable in structure, simple and convenient in process, easy to manufacture and simple and convenient to operate, conforms to the existing infusion specifications, solvfes the defects in the background technology and overcomes the risks in the background technology. The positive-pressure slow-release automatic sealing device for the indwelling needle effectively solves the problems of blood coagulation, thrombus formation or blockage in the use process of the venous indwelling needle.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to an indwelling needle positive pressure slow release automatic sealing device for clinically used indwelling needles for positive pressure slow release and anti-thrombosis. Background technique [0002] With the extensive clinical use of indwelling needles, the hidden risks of indwelling catheters have gradually been reported. These problems are mainly the problems of blood return, coagulation and blockage of indwelling catheters. Up to now, in order to overcome the risk of coagulation and blockage of venous indwelling needles, positive pressure connectors and catheter flushers have been used clinically to solve the above problems. Although the manufacturers claim that they can solve the above problems, they cannot actually solve the above phenomena effectively. One of them is The main cause of blood return and tube blockage is the positive pressure connector of the current positive...

Claims

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Application Information

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IPC IPC(8): A61M5/158A61M39/22
Inventor 王亮东
Owner 常熟市精亮微医疗器械科技有限公司
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