Urethral catheter with urine detection function

Abstract

The catheter with the urine detection function comprises a urine guide head, one end of the urine guide head is connected with a hose, the other end of the hose is connected with a connector, and a liquid outlet is formed in the connector; a urine guide channel is arranged in the hose; a urine detection hole is formed in the urine guide head; a detection channel is arranged in the hose, a detection cavity is formed in the tail end of the detection channel, and detection test paper is arranged in the detection cavity; a first fixing chuck is arranged at one end of the hose, and a first through groove is formed in the first fixing chuck; a rotating chuck is arranged on the hose, and a second through groove is formed in the rotating chuck; a second fixing chuck is arranged on the hose, and a third through groove is formed in the second fixing chuck; the second through groove is communicated with or separated from the third through groove and the first through groove in the rotating process of the rotating chuck; a first air bag surrounding the outer side of the hose is arranged on the rear side of the third chuck. Whether the catheterization head is inserted into the bladder or not is judged by detecting urine, the structure is simple, and operation is easy.

Description

Technical Field

[0001] The invention relates to a urinary catheter with urine detection function, belonging to the technical field of urinary catheters. Background Art

[0002] A urinary catheter is a tube that is inserted into the bladder through the urethra to drain urine. It is a pipe made of natural rubber, silicone rubber or polyvinyl chloride (PVC), which can be inserted into the bladder through the urethra to drain urine. After the urinary catheter is inserted into the bladder, there is an air bag near the head of the catheter to fix the catheter in the bladder and prevent it from falling out, and the drainage tube is connected to a urine bag to collect urine. For example, the Chinese utility model patent with the authorization announcement number CN213698457U discloses a pre-lubricated urinary catheter and a combined device of a urinary catheter and a drainage bag, and specifically discloses a packaging bag and a urinary catheter. The urinary catheter includes an insertion portion for inserting into the urethra and a connecting portion connected to the drainage bag. The urinary catheter is placed in a packaging bag, and an oil bag filled with lubricant is provided in the packaging bag, and the insertion portion is immersed in the oil bag. This type of urinary catheter requires external equipment to detect whether it is correctly inserted into the bladder, which is inconvenient. Summary of the invention

[0003] The purpose of the present invention is to provide a urinary catheter with urine detection. The present invention determines whether the urinary catheter head is inserted into the bladder by detecting urine, and has a simple structure and is easy to operate.

[0004] The technical solution of the present invention is as follows: a urinary catheter with urine detection, comprising a urinary catheter head, one end of the urinary catheter head is connected to a hose, the other end of the hose is connected to a connector, and the connector is provided with a liquid outlet; a urinary catheter channel is provided in the hose, and the urinary catheter channel is respectively connected to the urinary catheter head and the liquid outlet; a urine detection hole is provided on the urinary catheter head; a detection channel is provided in the hose, and a detection cavity is provided at the end of the detection channel, and a detection test paper is provided in the detection cavity; a first fixed chuck is provided at one end of the hose near the connector, and a first through groove is provided on the first fixed chuck; the detection channel is respectively connected with the first through groove and the urine detection hole; a rotating chuck located at the rear side of the first fixed chuck is provided on the hose, and a second through groove is provided on the rotating chuck; a second fixed chuck located at the rear side of the rotating chuck is provided on the hose, and a third through groove is provided on the second fixed chuck; the second through groove is connected with or separated from the third through groove and the first through groove during the rotation of the rotating chuck; a first air bag surrounding the outer side of the hose is provided at the rear side of the second fixed chuck, and the inner cavity of the first air bag is connected with the third through groove.

[0005] In the above-mentioned urinary catheter with urine detection, a plurality of springs are arranged between the inner cavity of the first airbag and the hose; an air outlet is arranged on the side of the first airbag, and a first one-way valve is arranged in the air outlet; and a second one-way valve is arranged in the third through groove.

[0006] The aforementioned urinary catheter with urine detection has a side tube on the side of the connecting head, and a water injection port on the side tube; a second air bag is provided at one end of the hose near the urinary catheter head; a water injection channel is provided in the hose, and the water injection channel is respectively connected to the water injection port and the interior of the second air bag.

[0007] The aforementioned urinary catheter with urine detection function has a window located outside the detection cavity on the soft tube.

[0008] The aforementioned urinary catheter with urine detection function has a first indicating arrow on the rotating chuck, and a second indicating arrow on the first fixed chuck.

[0009] The aforementioned urinary catheter with urine detection function has a plurality of urine suction grooves disposed on the side of the urinary catheter head.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. In the present invention, the catheter head is inserted into the patient's body. At this time, the first airbag is in a compressed state. The rotating chuck is rotated so that the second through groove connects the first through groove with the second through groove. The first airbag starts to inhale and reset, so that the urine in the bladder is sucked from the urine detection hole and passes through the detection channel to the detection cavity. The urine contacts the detection test paper and the detection test paper changes color, which proves that the catheter head has been inserted into the bladder. If no urine is detected, the catheter head continues to be adjusted until the urine in the bladder is sucked into the urine detection hole. After the detection is completed, the present invention rotates the rotating chuck so that the second through groove is misaligned with the first through groove and the second through groove, and the urine will no longer be sucked from the urine detection hole; then it is connected to the external device through the connector, and the urine in the bladder is sucked from the catheter head, flows into the catheter channel and flows out from the liquid outlet. Therefore, the present invention achieves the effect of judging whether the catheter head is inserted into the bladder by detecting urine, and has the advantages of simple operation and convenient use.

[0012] 2. In the present invention, if the first airbag does not inhale urine when it is reset by suction, the position of the catheter head is adjusted and tested again, the first airbag is pressed to make the gas in the first airbag flow out from the first one-way valve, and then the first airbag is released to help the first airbag reset under the action of the spring, and the urine is continued to be sucked from the urine detection hole for re-testing, which has better repeatability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the present invention;

[0014] Figure 2 It is a schematic diagram of the internal structure of the detection channel;

[0015] Figure 3 It is a schematic diagram of the structure of the through slot;

[0016] Figure 4 It is a schematic diagram of the internal structure of the water injection channel.

[0017] The marks in the accompanying drawings are: 1-catheterization head, 2-hose, 3-connector, 4-liquid outlet, 5-catheterization channel, 6-urine detection hole, 7-detection channel, 8-detection cavity, 9-detection test paper, 10-first fixed chuck, 11-first through groove, 12-rotating chuck, 13-second through groove, 14-second fixed chuck, 15-third through groove, 16-first air bag, 17-spring, 18-air outlet, 19-first one-way valve, 20-second one-way valve, 21-side tube, 22-water injection port, 23-second air bag, 24-water injection channel, 25-window, 26-first indication arrow, 27-second indication arrow, 28-urine suction groove. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0019] Embodiment: A urinary catheter with urine detection, comprising: Figure 1-4 As shown, it comprises a urinary catheter head 1, one end of which is connected to a hose 2, the other end of which is connected to a connector 3, and a liquid outlet 4 is provided on the connector 3; a urinary catheter channel 5 is provided in the hose 2, and the urinary catheter channel 5 is respectively connected to the urinary catheter head 1 and the liquid outlet 4; the urinary catheter head 1 is provided with a urine detection hole 6; Figure 2 As shown, the hose 2 is provided with a detection channel 7, the end of the detection channel 7 is provided with a detection cavity 8, and the detection cavity 8 is provided with a detection test paper 9; the hose 2 is provided with a first fixed chuck 10 at one end close to the connector 3, a part of the first fixed chuck 10 is inserted into the hose 2 and the part is provided with a first through groove 11; the detection channel 7 is respectively connected with the first through groove 11 and the urine detection hole 6; Figure 3 As shown, the hose 2 is rotatably connected with a rotating chuck 12 located at the rear side of the first fixed chuck 10, and the rotating chuck 12 is provided with a second through slot 13; the hose 2 is fixedly connected with a second fixed chuck 14 located at the rear side of the rotating chuck 12, and the second fixed chuck 14 is provided with a third through slot 15; the second through slot 13 is connected or separated with the third through slot 15 and the first through slot 11 during the rotation of the rotating chuck 12; the rear side of the second fixed chuck 14 is provided with a first air bag 16 surrounding the outside of the hose 2, and the inner cavity of the first air bag 16 is connected with the third through slot 15. Furthermore, sealing rings are respectively provided on both sides of the rotating chuck 12 to enhance the air tightness between the rotating chuck 12 and the first fixed chuck 10 and the second fixed chuck 14.

[0020] Preferably, if Figure 2 and 3As shown, a plurality of springs 17 are provided between the inner cavity of the first airbag 16 and the hose 2; an air outlet 18 is provided on the side of the first airbag 16, and a first one-way valve 19 is provided in the air outlet 18; a second one-way valve 20 is provided in the third through groove 15. The conducting direction of the first one-way valve 19 is from the inside of the first airbag 16 to the outside of the first airbag 16; the conducting direction of the second one-way valve 20 is from the second through groove 13 to the inside of the first airbag 16. If the first airbag 16 cannot suck urine when it is reset by suction, adjust the position of the catheter head 1, press the first airbag 16 completely and then release it two to four times, so that the gas in the first airbag 16 flows out from the first one-way valve 19 and helps the first airbag 16 to reset under the action of the spring 17, and continue to suck body fluid from the urine detection hole 6 for detection again, repeat the above operation until urine is sucked, and ensure that the catheter head 1 is inserted correctly. The second one-way valve 20 is used to prevent the gas from flowing to the detection channel 7 when squeezing the first airbag 16.

[0021] Preferably, if Figure 1 and 4 As shown, the side of the connector 3 is provided with a side tube 21, and the side tube 21 has a water injection port 22; the hose 2 is provided with a second air bag 23 at one end close to the urinary catheter 1; the hose 2 is provided with a water injection channel 24, and the water injection channel 24 is respectively connected with the water injection port 22 and the inside of the second air bag 23. After the urinary catheter 1 is correctly inserted into the patient's bladder, physiological saline is injected into the water injection port 22, and the physiological saline flows into the second air bag 23 through the water injection channel 24, so that the second air bag 23 expands, so that the second air bag 23 is blocked at the bladder opening, and the urinary catheter 1 is prevented from being separated from the bladder.

[0022] Preferably, if Figure 1 The hose 2 is provided with a viewing window 25 located outside the detection chamber 8. The color change of the test paper 9 can be seen through the viewing window 25.

[0023] Preferably, if Figure 1 As shown, the rotating chuck 12 is provided with a first indication arrow 26, and the first fixed chuck 10 is provided with a second indication arrow 27. When the first indication arrow 26 is aligned with the second indication arrow 27, the second through slot 13 is aligned with the first through slot 11 and the second through slot 13, which is convenient for medical staff to operate.

[0024] Preferably, if Figure 1 As shown, the side of the urinary catheter head 1 is provided with a plurality of urine suction grooves 28. Urine is sucked into the urinary catheter channel 5 from the urine suction grooves 28.

[0025] Preferably, the test paper 9 reduces nitrate to nitrite according to Gram-positive bacteria in urine, and the nitrite reacts with p-aminobenzenesulfonic acid to generate a diazo compound, which then combines with sodium N-(1-naphthalene)-3-aminopropanesulfonate to present a pink color.

[0026] Preferably, the test paper 9 is a pH test paper, and the pH value of urine is between 5-7, and the color is developed according to the pH value.

[0027] Working principle:

[0028] The catheter head 1 is inserted into the patient's body. At this time, the first airbag 16 is in a compressed state. The rotating chuck 12 is rotated so that the second through groove 13 connects the first through groove 11 with the second through groove 13. The first airbag 16 starts to inhale and reset, so that the urine in the bladder is sucked from the urine detection hole 6 and passes through the detection channel 7 to the detection cavity 8. The urine contacts the detection test paper 9, and the detection test paper 9 changes color, which proves that the catheter head 1 has been inserted into the bladder. If no urine is detected, the catheter head 1 is continuously adjusted until the urine in the bladder is drained. The urine is sucked from the urine detection hole 6; after the detection is completed, the rotating chuck 12 is rotated so that the second through groove 13 is misaligned with the first through groove 11 and the second through groove 13, and urine will no longer be sucked from the urine detection hole 6; physiological saline is injected into the water injection port 22, and the physiological saline flows into the second airbag 23 through the water injection channel 24, so that the second airbag 23 expands, so that the second airbag 23 is blocked at the bladder opening; then, it is connected to an external device through the connector 3, and the urine in the bladder is sucked from the catheter head 1, flows into the catheter channel 5 and flows out from the liquid outlet 4.

Claims

1. A urinary catheter with urine detection function, comprising a urinary catheter head (1), one end of which is connected to a hose (2), the other end of which is connected to a connector (3), the connector (3) being provided with a liquid outlet (4); a urinary catheter channel (5) is provided in the hose (2), the urinary catheter channel (5) being connected to the urinary catheter head (1) and the liquid outlet (4) respectively; characterized in that: The catheter head (1) is provided with a urine detection hole (6); the hose (2) is provided with a detection channel (7), the end of the detection channel (7) is provided with a detection cavity (8), and a detection test paper (9) is provided in the detection cavity (8); the hose (2) is provided with a first fixed chuck (10) at one end close to the connector (3), and the first fixed chuck (10) is provided with a first through groove (11); the detection channel (7) is respectively connected to the first through groove (11) and the urine detection hole (6); the hose (2) is provided with a rotating chuck (10) located at the rear side of the first fixed chuck (10) 12), a second through groove (13) is provided on the rotating chuck (12); a second fixed chuck (14) is provided on the hose (2) and is located at the rear side of the rotating chuck (12); a third through groove (15) is provided on the second fixed chuck (14); the second through groove (13) is connected to or separated from the third through groove (15) and the first through groove (11) during the rotation of the rotating chuck (12); a first air bag (16) is provided on the rear side of the second fixed chuck (14) and surrounds the outer side of the hose (2); the inner cavity of the first air bag (16) is connected to the third through groove (15).

2. The urinary catheter with urine detection according to claim 1, characterized in that: A plurality of springs (17) are provided between the inner cavity of the first airbag (16) and the hose (2); an air outlet (18) is provided on the side of the first airbag (16), and a first one-way valve (19) is provided in the air outlet (18); and a second one-way valve (20) is provided in the third through groove (15).

3. The urinary catheter with urine detection according to claim 1, characterized in that: The side of the connector (3) is provided with a side tube (21), and the side tube (21) has a water injection port (22); the end of the hose (2) close to the urinary catheter (1) is provided with a second air bag (23); the hose (2) is provided with a water injection channel (24), and the water injection channel (24) is respectively connected to the water injection port (22) and the interior of the second air bag (23).

4. The urinary catheter with urine detection according to claim 1, characterized in that: The hose (2) is provided with a viewing window (25) located outside the detection cavity (8).

5. The urinary catheter with urine detection according to claim 1, characterized in that: The rotating chuck (12) is provided with a first indicating arrow (26); the first fixed chuck (10) is provided with a second indicating arrow (27).

6. The urinary catheter with urine detection according to claim 1, characterized in that: The side of the urine catheter head (1) is provided with a plurality of urine suction grooves (28).

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