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A stop-flow catheter

A urinary catheter and flow-stopping technology, which is applied in the direction of catheters, connecting tubes, medical science, etc., can solve the problems of urinary catheter lumen contamination and pollution, and achieve the goal of avoiding urine pollution, ensuring dryness and cleanliness, and preventing urine from flowing out Effect

Active Publication Date: 2020-05-22
JW ICU MEDICAL LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] It is necessary to drain the urine out of the urine outlet of the urinary catheter and flow to a container such as a curved plate before judging that the catheter has been successfully inserted, and then connect the drainage urine bag connector. Or the microorganisms on the surface of the surrounding objects reproduce in this part of the urine, and it is very easy to cause contamination in the catheter lumen when the connector of the drainage urine bag is pulled out again

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1: a kind of flow-stop type urinary catheter comprises the same structure as existing urinary catheter, such as figure 1 As shown, there is a hollow main pipeline composed of solid materials with an inner surface 11 and an outer surface 12. The hollow pipeline is a catheter lumen 10, including a head 13 that enters the bladder during use, a tail 14 that is left outside the body, and a connecting The middle part 15 of head 13 and tail 14, head 13 is provided with urine inlet 130, and tail 14 is provided with urine outlet 140; The difference between the present invention and existing catheter is, as image 3 As shown, it also includes a hydrophobic flow-stop diaphragm 62 that is arranged at the catheter tail 14 and seals the catheter lumen 10 to the outside to prevent liquid but does not prevent gas from passing through; the hydrophobic flow-stop diaphragm 62 is sealed and connected with an annular fixed The casing 61 constitutes the flow-stopping component 6 ,...

Embodiment 2

[0044] Embodiment 2: as Figure 6 As shown, a transparent window 1410 is provided on the wall of the urinary catheter in the vicinity of the flow-stopping member 6, which is convenient for observing whether there is urine arriving, and timely and accurately judging whether the urinary catheterization is successful.

Embodiment 3

[0045] Embodiment 3: as Figure 7 As shown, the urine outlet 140 communicating with the catheter lumen 10 at the catheter tail 14 is closed by a hydrophobic flow-stop diaphragm 62, and the peripheral edge of the hydrophobic flow-stop diaphragm 62 is connected with the catheter tail end surface 1411 as a whole.

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Abstract

Urinary catheterization is the most common clinical operation. When the urine inlet of the catheter head enters the bladder, and the urine slowly flows out from the catheter into containers such as bends due to the pressure in the bladder, it can be judged at this time After the catheter is inserted successfully, the urine drainage bag connector is inserted into the urine outlet of the catheter to form a closed system. Clinical data show that there is a great risk of infection in this way of making the urine flow out and then connecting the drainage bag connector. The invention provides a flow-stop type urinary catheter, the hydrophobic stop-flow diaphragm at the tail of which seals the inner cavity of the catheter externally and prevents the passage of liquid but not gas, so that the urine does not flow out of the catheter and does not pollute the catheter. On the premise of the urine outlet of the catheter, it can effectively judge whether the catheter has been successfully inserted, so as to minimize and avoid the risk of infection caused by the contamination of the joint between the catheter and the drainage bag.

Description

technical field [0001] The invention relates to a urinary catheter, in particular to a flow-stop type urinary catheter, which belongs to the technical field of medical instruments. Background technique [0002] Urinary catheter is the most common clinical medical device. After being inserted into the human body through the urethra, it can drain urine from the bladder to the outside of the body; it can be taken out after one urine drainage, or it can be left in place for multiple drainages for a long time. [0003] The operation of catheter insertion is usually to use one hand to press the surrounding tissues of the urethral opening to make it relatively fixed, stretch and expose the external urethral opening, and hold the sterile catheter directly or with tweezers, hemostats, etc., from the outside of the urethra. Insert the catheter slowly; when the urine inlet of the catheter enters the bladder, the urine will slowly flow out from the urine outlet of the catheter to the co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61M1/00
CPCA61M2210/1089A61M1/84A61M25/0097A61M2025/0018A61M2210/1096A61M2210/1092A61M2039/205A61M39/12A61M2210/1085A61M2205/7536A61M2205/584A61M1/73A61M2202/0496A61M1/784A61B5/14532A61B5/14539A61B5/14546A61B5/1459A61B5/6852A61B5/202
Inventor 董东生
Owner JW ICU MEDICAL LTD
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