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Pulse head for flushing pipe and its usage method

A pulse and effective technology, applied in the direction of needles and instruments introduced into the body, can solve the problems of high cost of flow regulators, high requirements for matching precision, high material and production costs, etc., achieve good internal eddy current effect, low experience requirements, low cost effect

Active Publication Date: 2022-02-11
SUZHOU SCI&TECH TOWN HOSPITAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For different operators, or even the same operator operating at different times, the pressing force on the syringe is usually different each time the pulse flushing is performed, which may cause inconsistent or even unqualified flushing effects
[0007] In the patent No. 2020103309135 previously applied by our hospital, the patent titled "pulse head for flushing tube and its use method" discloses an injection device device, which can complete the pulse flushing operation by continuously pressing the syringe. The matching precision of each component (such as the runner, etc.) is relatively high, the structure is more complicated, and the cost of materials such as the flow regulating plate and the lower turntable is relatively high. As a one-time use consumable, compared with the manual pulse flushing operation, Its material and production costs are still high

Method used

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  • Pulse head for flushing pipe and its usage method
  • Pulse head for flushing pipe and its usage method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A pulse head for flushing a tube, which is used to be installed on a syringe to form a pulse injection, comprising a housing 1 with a cavity A, the housing is a cylinder or a regular polygonal cylinder; the top of the housing is provided with a The liquid inlet pipe 2, the bottom of the housing is provided with a liquid outlet pipe 3 for connecting with the flushing tube joint of the indwelling needle, the lower end of the liquid inlet pipe extends to the upper part of the cavity, and the lower end of the liquid inlet pipe is connected with a highly elastic rubber The upper end of the pipe 4 is connected;

[0038] The lower part of the cavity is horizontally provided with an arc-shaped elastic sheet 5, the convex surface of the arc-shaped elastic sheet faces upwards, the edge of the arc-shaped elastic sheet is connected and fixed with the inner wall of the housing, and the arc-shaped elastic sheet bounces downward under pressure, that is, the arc elastic sheet When the ...

Embodiment 2

[0051] A method of using a pulse head for flushing tubes. When in use, connect the syringe to the liquid inlet tube, connect the liquid outlet tube to the flushing tube connector of the indwelling needle, press the syringe continuously, and the flushing liquid enters the rubber tube and makes the rubber tube flow from the thin-walled section to the tube. It starts to bulge from top to bottom until the rubber tube bulges above the arc-shaped elastic piece. The bulging rubber tube presses the arc-shaped elastic piece, making the middle of the arc-shaped elastic piece bounce down quickly and maintain a stable concave state. At the same time, the arc-shaped elastic piece Push the sliding tube down to connect the horizontal tube with the opening of the sliding tube. The flushing fluid in the bulging rubber tube is quickly squeezed out under the contraction pressure of the rubber tube, and flows out through the opening of the sliding tube to the flushing tube joint of the indwelling n...

Embodiment 3

[0055] Further, there is currently no clear industry standard for the amount of flushing fluid in the pulse flushing operation. In order to improve the flushing efficiency and shorten the flushing time, some hospital operating specifications will give some guiding suggestions (such as flushing for each pulse flushing 1ml of solution, push 4 times continuously, and then give a constant infusion of 3ml). Although this saves the flushing time, the effect of flushing the tube needs to be verified.

[0056] By properly adjusting the length, thickness and maximum expansion of the rubber tube, the volume of the inner cavity of the shell, the position and radian of the arc-shaped elastic piece, the opening height of the sliding tube, the height of the horizontal tube, etc., each pulse injection The propellant volume of flushing fluid is 0.5-1ml. Furthermore, in practice, it has been found that the propulsion volume of 0.5-0.6ml is a more preferable value, and the flushing effect and t...

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PUM

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Abstract

A pulse head for flushing tubes, comprising a casing with a cavity, the top of the casing is provided with a liquid inlet pipe for connecting with a syringe, and the bottom of the casing is provided with a liquid outlet pipe for connecting with a flushing tube connector of an indwelling needle. The lower end of the liquid inlet pipe protrudes to the upper part of the cavity, and the lower end of the liquid inlet pipe is connected with the upper end of a highly elastic rubber tube; there is an arc-shaped elastic piece in the lower part of the cavity, the convex surface of the arc-shaped elastic piece faces upward, and the arc-shaped elastic piece The edge of the sheet is connected and fixed to the inner wall of the housing; the invention has low cost and can be used as a disposable consumable, and can be matched with a variety of syringes, which simplifies the pulse flushing operation, and the pulse flushing operation can be completed by continuously pressing the syringe. The experience requirement is low; the labor intensity of the operator is reduced, and the pulse frequency that is stable and higher than the manual operation frequency can be provided, and the liquid flow rate in the flushed pipe is relatively stable when flushing the pipe, and the vortex effect in the flushed pipe is good, and the overall flushing effect is good. Well, it has a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of indwelling needle flushing and sealing tubes, and in particular relates to a pulse head for flushing tubes and a using method thereof. Background technique [0002] The flushing and sealing operation of the indwelling needle is one of the necessary operations to prevent the complications of the intravenous indwelling needle during the catheter indwelling period and to ensure the normal use of the catheter. To reduce the risk of incompatible drugs coming into contact with each other and prevent complications. Since injections are mostly suspensions composed of protein, glucose, fat, various vitamins and minerals, the liquid molecules are large and relatively viscous, and the input speed is often slower than conventional medicines, which may cause pipeline blockage. [0003] At present, the hospital generally adopts the pulse flushing method to flush the indwelling needle. If the direct flushing method is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M5/158A61M5/14
CPCA61M5/158A61M5/14A61M2005/1403
Inventor 余飞飞
Owner SUZHOU SCI&TECH TOWN HOSPITAL