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Injection device facilitating indwelling needle tube washing operation and using method thereof

An injection device and indwelling needle technology, which is applied in the field of indwelling needles, can solve problems such as unqualified and inconsistent flushing effects, and achieve good effects, small cost increases, and low experience requirements

Active Publication Date: 2020-07-17
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

Method used

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  • Injection device facilitating indwelling needle tube washing operation and using method thereof
  • Injection device facilitating indwelling needle tube washing operation and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] An injection device that is convenient for indwelling needle flushing operation, comprising a syringe 1 and a pulse head, the pulse head is sealed and connected with the injection head of the syringe, and the pulse head includes a shell 2 with a cylindrical cavity and is arranged in the cavity The runner 3, the upper part of the housing 2 is provided with a liquid inlet 210 for connecting with the injection head 110 of the syringe, and the lower part of the housing is provided with a liquid outlet 220 for connecting with the flushing tube connector of the indwelling needle;

[0033] A diaphragm 4 is arranged in the cavity, which divides the cavity into an upper chamber and a lower chamber, and a shaft hole 410 is provided in the middle of the diaphragm;

[0034] The runner includes an upper impeller 310 and a lower rotating disk 320, the upper impeller and the lower rotating disk are connected by a rotating shaft 330, the rotating shaft is arranged in the shaft hole, the...

Embodiment 2

[0045] A method of using an injection device that is convenient for flushing the tube with an indwelling needle. When starting the flushing operation, first shake the injection device slightly to start the rotation of the lower turntable, and then push the syringe to let the flushing liquid flow out from the liquid outlet. During the rotation of the lower turntable , when the second liquid outlet hole is rotated to coincide with the liquid outlet, the flow rate of the liquid outlet is relatively large; when the second liquid outlet hole is rotated to a position not coincident with the liquid outlet, the flow rate of the liquid outlet is small Or the flow rate is zero, every time the lower turntable rotates, the catheter will experience a cycle of pressure and flow rate changes of the flushing fluid, thus completing a pulse flushing operation, the faster the lower turntable rotates, the higher the frequency of pulse flushing, and the lower turntable may rotate too fast As a resu...

Embodiment 3

[0048] The second liquid outlet holes can be multiple (such as 2-4) distributed evenly or symmetrically on the same circumference, and every time the lower turntable rotates 360 degrees, the same number of pulses as the second liquid outlet holes can be formed;

[0049] Of course, due to the increase in the number of the second liquid outlet holes, the number of the flow regulating pieces also increases, which will lead to a corresponding increase in the difficulty and cost of the manufacturing process.

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Abstract

The invention discloses an injection device facilitating indwelling needle tube washing operation. The device comprises an injector and a pulse head, the pulse head comprises a shell with a cylindrical cavity and a rotating wheel arranged in the cavity, and a liquid inlet and a liquid outlet are formed in the upper portion of the shell; a transverse partition plate is arranged in the cavity, and ashaft hole is formed in the middle of the transverse partition plate; the rotating wheel comprises an upper impeller and a lower rotating disc, the upper impeller and the lower rotating disc are connected through a rotating shaft, the rotating shaft is arranged in the shaft hole, and a first liquid outlet is formed close to the outer edge of the transverse partition plate; and a second liquid outlet is formed close to the outer edge of the lower rotating disc. According to the invention, the pulse type tube washing operation is simplified, the pulse type tube washing operation can be completed by continuously pressing the injector, and the requirement on the experience of an operator is low; the labor intensity of an operator is reduced, the pulse frequency which is stable and higher thanthe frequency of manual operation can be provided, the flow speed of a liquid in a flushed pipe is relatively stable during pipe flushing, the vortex effect in the flushed pipe is good, the overall pipe flushing effect is good, and good application prospects are achieved.

Description

technical field [0001] The invention belongs to the technical field of indwelling needles, and in particular relates to an injection device which is convenient for flushing operation of indwelling needles and a usage method thereof. Background technique [0002] With the continuous development of nursing science, intravenous indwelling needles have been widely used in clinical work, and flushing and sealing tubes are one of the important links to prevent complications during indwelling catheters and ensure normal use of catheters. The purpose of flushing indwelling needles is to The residual drug solution in the catheter is flushed into the blood vessel to remove the accumulated drug solution in the catheter, thereby reducing the risk of mutual contact of incompatible drugs and preventing 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 infus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M5/158A61M5/14
CPCA61M5/158A61M5/14A61M2005/1402A61M2005/1403
Inventor 孙柳李伟
Owner SUZHOU SCI&TECH TOWN HOSPITAL
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