Urine oxygen measuring device

Abstract

The invention discloses a urine oxygen measuring device, and relates to the technical field of medical instruments.The urine oxygen measuring device comprises a ureter body, a flexible probe is fixedly connected to the upper end of the ureter body, a flexible connecting layer is fixedly connected to the outer side of the ureter body, an electrode is fixedly connected to the inner side of the ureter body, and a conductive wire is electrically connected to the electrode; the conductive wire is arranged in the side wall of the ureter body in a penetrating mode and extends to the outer side of the ureter body, and the stop block is connected to the side wall of the ureter body in an embedded mode. According to the urine oxygen measuring device, when a patient urinates, urine flows through the ureter body, at the moment, the electrode in the ureter body can react with the oxygen content in the urine, and the reaction is transmitted through the conductive wire and the connecting wire; the insulating tube can protect the connecting part among the connecting wire, the conductive wire and the wiring terminal to a certain extent, and is in butt joint with the oxygen sensor under the action of the network cable connector, so that the oxygen content is measured.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to a urine oxygen measuring device. Background Art

[0002] During cardiac surgery and in the ICU after surgery, as well as in medical scenarios that require real-time monitoring of kidney function, continuous dynamic monitoring of urine oxygen partial pressure is needed so that doctors can promptly detect abnormal kidney function, predict the risk of AKI, and take appropriate treatment measures. The device that continuously and dynamically monitors urine oxygen partial pressure using a catheter with electrodes and an oxygen sensor is an advanced medical device. By continuously monitoring urine oxygen partial pressure, doctors can promptly detect abnormal kidney function, predict the risk of AKI, and take appropriate treatment measures.

[0003] As disclosed in the publication number CN110461233B, an oxygen measuring device and an oxygen measuring system are provided, which can accurately and reliably measure the oxygen element in fresh urine discharged from the kidneys through the bladder to the outside of the body. The oxygen measuring device of the invention is characterized in that it comprises: a urethral catheter having a shaft formed with a catheter cavity, and a hub portion provided at the base end of the shaft and formed with a urination port connected to the catheter cavity, wherein the catheter cavity can allow urine flowing from the bladder through the catheter port to flow; and an oxygen sensor body, which is provided on the hub portion in a manner capable of contacting urine flowing through the urination port and is used to detect the oxygen element in urine. According to this structure, since the oxygen element in the urine flowing through the urination port can be detected by the oxygen sensor body, the oxygen element in fresh urine discharged from the kidneys through the bladder to the outside of the body can be accurately and reliably measured.

[0004] For example, the urine oxygen measuring device disclosed in the publication number CN109152532A is characterized in that it comprises: a urethral catheter including a flexible hollow shaft, and an oxygen sensor having an oxygen sensor body capable of detecting oxygen in urine, wherein the shaft is provided with a urinary catheter port for urine in the bladder to flow in, and a urinary tract connected to the urinary catheter port for the urine to flow through, and the oxygen sensor is provided in the urethral catheter and is configured in such a manner that the oxygen sensor body is in contact with urine flowing in the urinary tract. According to such a configuration, the oxygen sensor body can be brought into contact with urine flowing in the urinary tract, so that oxygen in new urine discharged from the kidneys to the outside of the body via the bladder can be accurately and reliably measured. The oxygen sensor comprises: the oxygen sensor body having a fluorescent body and a base provided with the fluorescent body, and an optical fiber formed separately from the oxygen sensor body, wherein the oxygen sensor body is fixed to the urethral catheter in a manner that at least a portion of the fluorescent body contacts urine in the urinary tract, the optical fiber can position the front end face of the optical fiber relative to the fluorescent body in a manner that can irradiate excitation light to the fluorescent body and can receive fluorescence from the fluorescent body, and the optical fiber is fixed to the urethral catheter in a state in which the front end face of the optical fiber is positioned relative to the fluorescent body, and the oxygen sensor body having the fluorescent body and the optical fiber can be manufactured separately and embedded in the urethral catheter to measure oxygen in urine.

[0005] In the existing urine oxygen measuring device, after the catheter is inserted into the patient's body, the air bag part is prone to leak gas, so that the catheter falls off the patient's body. At the same time, the patient can exhaust the air by himself with the existing air bag exhaust device. When the patient feels uncomfortable, the catheter will be pulled out, and the medical staff needs to insert it again, which increases the workload of the medical staff.

[0006] Therefore, we propose a urine oxygen measurement device to solve the above problems. Summary of the invention

[0007] The object of the present invention is to provide a urine oxygen measuring device to solve the problem raised by the above-mentioned background technology that the air bag part of the current market is prone to gas leakage, which causes the catheter to fall off from the patient's body and the patient will pull out the catheter when feeling uncomfortable, and the medical staff will need to insert it again, increasing the workload of the medical staff.

[0008] To achieve the above object, the present invention provides the following technical solution: a urine oxygen measuring device, comprising a urinary catheter body, the upper end of which is fixedly connected to a flexible probe, and the outer side of which is fixedly connected to a flexible connection layer; An electrode, wherein the electrode is fixedly connected to the inner side of the urinary catheter body, and the electrode is electrically connected to a conductive wire, and the conductive wire is arranged through the inner side wall of the urinary catheter body, and the conductive wire extends to the outer side of the urinary catheter body; A blocking block, wherein the blocking block is nested and connected to the side wall of the urinary catheter body, a connecting ring is fixedly connected to the outside of the urinary catheter body, and an air supply pipe is connected through the inside of the outer end side wall of the urinary catheter body; The butt joint is butt-jointed with the outer end of the urinary catheter body, and a tooth plate is fixedly connected to the upper side of the butt joint, and a clamping mechanism for limiting the air supply pipe is arranged inside the urinary catheter body.

[0009] Preferably, a terminal is fixedly connected to the outside of the urinary catheter body, the outer end of the conductive wire is electrically connected to the terminal, and the terminal is also electrically connected to a connecting wire, and the outer end of the connecting wire is fixedly connected to a network cable connector, and an insulating tube is provided on the outside of the joint between the terminal and the connecting wire.

[0010] Preferably, the electrodes are arranged in multiple groups on the inner side of the urinary catheter body, the multiple groups of conductive wires are respectively connected to the positive and negative electrodes of the wiring terminals, and the network cable connector is connected to the oxygen sensor.

[0011] Preferably, a fixing rod is fixedly connected to the inner side of the connecting ring, the blocking block is nested and connected to the outer side of the fixing rod, a buffer spring is fixedly connected between the blocking block and the connecting ring, and a blocking plug is fixedly connected to the top end of the air supply pipe.

[0012] Preferably, the connecting ring is arranged on the inner side of the flexible connecting layer, and a vent hole is provided on the connecting ring, and two sides of the blocking block are designed to be inclined when viewed from above.

[0013] Preferably, the top end of the air supply pipe is designed to be arc-shaped, the blocking block forms a sliding structure through the air supply pipe and the fixing rod, and the blocking block forms an elastic structure through the buffer spring and the connecting ring.

[0014] Preferably, the engaging mechanism comprises a docking block, the docking block is nested and connected to the urinary catheter body, a connecting spring is fixedly connected between the upper end of the docking block and the urinary catheter body, and a second magnetic block is fixedly connected to the upper end of the docking block; The outer end of the urinary catheter body is nested with a threaded rod, the inner end of the threaded rod is fixedly connected with a gear, and the outer end of the threaded rod is threadedly connected with a threaded block, and the outer side of the threaded block is fixedly connected with a connecting rod; The inner side of the urinary catheter body is fixedly connected to a limiting rod, and the outer side of the limiting rod is nested with a connecting rod, and the upper connecting rod is fixedly connected to a moving rod, while the outer end of the moving rod is fixedly connected to a first magnetic block, and the first magnetic block is nested and connected to the inner side of the urinary catheter body.

[0015] Preferably, the gear and the toothed plate are meshed with each other, and the connecting rod forms a sliding structure through a threaded block and a limiting rod.

[0016] Preferably, the first magnetic block and the second magnetic block are magnets of opposite names, the lower end of the docking block is docked to the inside of a docking groove provided on the outside of the air supply pipe, and the docking block forms an elastic structure with the catheter body through a connecting spring.

[0017] Compared with the prior art, the present invention has the following beneficial effects: (1) Medical staff can use the flexible probe to better place the catheter body into the patient's body, and at the same time push the air supply tube to move into the inside of the catheter body until the blocking plug set at the top of the air supply tube blocks the opening of the catheter body. When the air supply tube is moving, it will simultaneously squeeze and push the blocking block to move. At this time, the blocking block does not block the catheter body. At this time, medical staff can supply air to the inside of the air supply tube, and the gas is discharged through the air holes set in the connecting ring to expand the flexible connecting layer, which can reduce the phenomenon of the catheter body falling off from the patient's body. (2) When the blocking block moves, it will move along the fixed rod toward the side of the connecting ring. At this time, the fixed rod can limit the blocking block, and the blocking block will squeeze the buffer spring. When the air supply tube is reset, the blocking block will be reset under the elastic force of the buffer spring. At this time, the blocking block blocks the catheter body to reduce the leakage of gas inside the flexible connecting layer.

[0018] (3) When the patient is urinating, the urine flows through the catheter body. At this time, the electrodes inside the catheter body will react to the oxygen content in the urine and transmit their reactions through the conductive wires and the connecting wires. The insulating tube can protect the connection between the connecting wires, the conductive wires and the terminal blocks to a certain extent. Under the action of the network cable connector, it is connected to the oxygen sensor to measure the oxygen content.

[0019] (4) After the catheter body is inserted into the patient's body, the urine bag can be docked on the catheter body through the docking joint. At this time, the docking joint drives the tooth plate to dock with the inside of the catheter body. At this time, the gear drives the threaded rod to rotate under the meshing action of the tooth plate. When the threaded rod is rotating, it will synchronously drive the moving rod to dock with the inside of the catheter body through the connecting rod, so that the first magnetic block and the second magnetic block are located in the same vertical position. At this time, the second magnetic block can drive the docking block to move under the action of the magnetic driving force, and make the docking block dock and engage with the inside of the air supply pipe, limit the air supply pipe, and prevent the patient from manually pushing the air supply pipe to cause gas leakage inside the flexible connecting layer.

[0020] (5) When the threaded block moves, it will synchronously drive the connecting rod to move along the limiting rod. At this time, the limiting rod can limit the connecting rod, so that the connecting rod can stably drive the first magnetic block to move, further improving the stability of the air supply pipe engagement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a front cross-sectional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the front cross-sectional structure of the air supply pipe of the present invention; Figure 3 It is a schematic diagram of the front cross-sectional structure of the connecting ring of the present invention; Figure 4 It is a schematic diagram of the front cross-sectional structure of the electrode of the present invention; Figure 5 This is a schematic diagram of the front view structure of the connecting wires of the present invention; Figure 6 It is a schematic diagram of the top cross-sectional structure of the present invention; Figure 7 This is a schematic diagram of the front view structure of the gear of the present invention; Figure 8 This is a schematic diagram of the front view structure of the limit rod of the present invention; Fig. 9 It is a schematic diagram of the side view structure of the tooth plate of the present invention; Fig.10 It is a front view structural schematic diagram of the docking block of the present invention.

[0022] In the figure: 1. Catheter body; 2. Flexible probe; 3. Flexible connecting layer; 4. Docking joint; 5. Electrode; 6. Connecting wire; 7. Conductive wire; 8. Wiring terminal; 9. Insulating tube; 10. Network cable connector; 11. Air supply pipe; 12. Blocking block; 13. Fixing rod; 14. Buffer spring; 15. Blocking plug; 16. Connecting ring; 17. Gear; 18. Tooth plate; 19. Threaded rod; 20. Threaded block; 21. Limiting rod; 22. Moving rod; 23. First magnetic block; 24. Second magnetic block; 25. Docking block; 26. Connecting spring; 27. Connecting rod. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Embodiment 1: Figure 1 , Figure 4 and Figure 5 The technical solution shown in the figure, the present invention provides the following technical solution: a urine oxygen measuring device, which discloses an electrode 5, through which the oxygen content in urine can be measured: It comprises a urinary catheter body 1, the upper end of which is fixedly connected to a flexible probe 2, and the outer side of which is fixedly connected to a flexible connection layer 3; The electrode 5 is fixedly connected to the inner side of the urinary catheter body 1, and the electrode 5 is electrically connected to a conductive wire 7, and the conductive wire 7 is arranged to penetrate the inner side wall of the urinary catheter body 1, and the conductive wire 7 extends to the outer side of the urinary catheter body 1; A terminal 8 is fixedly connected to the outside of the urinary catheter body 1, and the outer end of the conductive wire 7 is electrically connected to the terminal 8, and the terminal 8 is also electrically connected to the connecting wire 6, and the outer end of the connecting wire 6 is fixedly connected to the network cable connector 10, and at the same time, an insulating tube 9 is sleeved on the outside of the joint between the terminal 8 and the connecting wire 6, and multiple groups of electrodes 5 are arranged on the inner side of the urinary catheter body 1, and the multiple groups of conductive wires 7 are respectively connected to the positive and negative poles of the terminal 8, and the network cable connector 10 is connected to the oxygen sensor.

[0025] When the patient is urinating, the urine flows through the urinary catheter body 1. At this time, the electrode 5 inside the urinary catheter body 1 will react to the oxygen content in the urine. The electrode 5 works based on the chemical reaction between oxygen and the oxygen sensitive membrane. When the oxygen molecules in the urine diffuse through the membrane to the surface of the electrode 5, they will react with the material of the electrode 5 itself to generate a current proportional to the oxygen concentration. The current is transmitted through the conductive wire 7 and the connecting wire 6 to transmit the reaction so as to transmit the detected oxygen content data. The insulating tube 9 can protect the connection between the connecting wire 6, the conductive wire 7 and the terminal 8 to a certain extent. It is connected to the oxygen sensor under the action of the network cable connector 10 to measure the oxygen content. The main function of the urinary catheter body 1 is to guide urine out of the body. At the same time, the electrode 5 thereon serves as a medium for signal transmission to transmit the oxygen partial pressure information in the urine to the oxygen sensor. During use, the catheter body 1 with the electrode 5 is inserted into the patient's body and fixed in position, and then the oxygen sensor and the monitoring device are connected, and it is ensured that all connections are firm and reliable. When urine flows through the catheter body 1, the electrode 5 transmits the detected oxygen partial pressure information to the oxygen sensor, and the oxygen sensor transmits the electrical signal to the monitoring device for processing and analysis, and finally displays the oxygen partial pressure value in the urine. The unit of urine oxygen partial pressure measurement is millimeter, and the corresponding value is measured by millimeter water column in the monitoring device. The monitoring device can display the change trend of urine oxygen partial pressure in real time, and can set the alarm threshold as needed to remind medical staff to pay attention to abnormal conditions.

[0026] Embodiment 2: Figure 1 , Figure 2 , Figure 3 and Figure 6 The technical solution shown in the figure, the present invention provides the following technical solution: a urine oxygen measuring device, disclosing an air supply tube 11, through which the flexible connecting layer 3 can be supplied with air to prevent the urinary catheter body 1 from falling off after being inserted: The blocking block 12 is nested and connected to the side wall of the urinary catheter body 1, and a connecting ring 16 is fixedly connected to the outside of the urinary catheter body 1, and an air supply pipe 11 is penetrated and connected to the inside of the outer end side wall of the urinary catheter body 1; The inner side of the connecting ring 16 is fixedly connected to a fixing rod 13, the blocking block 12 is nested and connected to the outer side of the fixing rod 13, and a buffer spring 14 is fixedly connected between the blocking block 12 and the connecting ring 16, and the top end of the air supply pipe 11 is fixedly connected to a blocking plug 15. The connecting ring 16 is arranged on the inner side of the flexible connecting layer 3, and an air hole is opened on the connecting ring 16. The two sides of the blocking block 12 are inclined when viewed from above, and the top end of the air supply pipe 11 is arc-shaped. The blocking block 12 forms a sliding structure with the fixing rod 13 through the air supply pipe 11, and the blocking block 12 forms an elastic structure with the connecting ring 16 through the buffer spring 14.

[0027] Medical staff can use the flexible probe 2 to better insert the catheter body 1 into the patient's body, and at the same time push the air supply tube 11 to move into the interior of the catheter body 1 until the blocking plug 15 set at the top of the air supply tube 11 blocks the opening of the catheter body 1. When the air supply tube 11 is moving, it will synchronously squeeze and push the blocking block 12 to move. At this time, the blocking block 12 does not block the catheter body 1. At this time, medical staff can supply air to the inside of the air supply tube 11, and the gas is discharged through the air holes set by the connecting ring 16 to expand the flexible connecting layer 3. At this time, the phenomenon of the catheter body 1 falling off from the patient's body can be reduced.

[0028] When the blocking block 12 moves, it will move along the fixing rod 13 toward the connecting ring 16. At this time, the fixing rod 13 can limit the blocking block 12. At the same time, the blocking block 12 will squeeze the buffer spring 14. When the air supply pipe 11 is reset, the blocking block 12 will be reset under the driving force of the elastic force of the buffer spring 14. At this time, the blocking block 12 blocks the catheter body 1 to reduce the leakage of gas inside the flexible connecting layer 3.

[0029] Embodiment 3: Figure 1 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 The technical solution shown in the figure, the present invention provides the following technical solution: a urine oxygen measuring device, which discloses a snap mechanism, through which the air supply tube 11 can be snapped and fixed to prevent the patient from causing the air supply tube 11 to fall off the urinary catheter body 1 by himself: The butt joint 4 is butt-jointed with the outer end of the urinary catheter body 1, and a tooth plate 18 is fixedly connected to the upper side of the butt joint 4, and a clamping mechanism capable of limiting the position of the air supply pipe 11 is arranged inside the urinary catheter body 1; The engaging mechanism includes a docking block 25, which is nested and connected to the urinary catheter body 1, and a connecting spring 26 is fixedly connected between the upper end of the docking block 25 and the urinary catheter body 1, and a second magnetic block 24 is fixedly connected to the upper end of the docking block 25; A threaded rod 19 is nested and connected inside the outer end of the urinary catheter body 1, and a gear 17 is fixedly connected to the inner end of the threaded rod 19, and a threaded block 20 is threadedly connected to the outer end of the threaded rod 19, and a connecting rod 27 is fixedly connected to the outer side of the threaded block 20; The inner side of the urethra body 1 is fixedly connected to a limiting rod 21, and the outer side of the limiting rod 21 is nested with a connecting rod 27, and the upper connecting rod 27 is fixedly connected to a moving rod 22, and the outer end of the moving rod 22 is fixedly connected to a first magnetic block 23, and the first magnetic block 23 is nested and connected to the inner side of the urethra body 1.

[0030] The gear 17 and the tooth plate 18 are meshed with each other, the connecting rod 27 forms a sliding structure with the threaded block 20 and the limit rod 21, the first magnetic block 23 and the second magnetic block 24 are magnets of opposite names, and the lower end of the docking block 25 is docked to the inside of the docking groove opened on the outside of the air supply pipe 11, and the docking block 25 forms an elastic structure with the catheter body 1 through the connecting spring 26.

[0031] After the urinary catheter body 1 is inserted into the patient's body, the urine bag can be docked on the urinary catheter body 1 through the docking joint 4. At this time, the docking joint 4 drives the tooth plate 18 to dock into the inside of the urinary catheter body 1. At this time, the gear 17 drives the threaded rod 19 to rotate under the meshing action of the tooth plate 18. When the threaded rod 19 is rotating, it will synchronously drive the moving rod 22 to dock into the inside of the urinary catheter body 1 through the connecting rod 27, so that the first magnetic block 23 and the second magnetic block 24 are located at the same vertical position. At this time, the second magnetic block 24 is under the action of the magnetic driving force. The threaded block 20 can drive the docking block 25 to move, and make the docking block 25 dock and engage into the inside of the air supply pipe 11, so as to limit the air supply pipe 11 and prevent the patient from manually pushing the air supply pipe 11 to cause the internal gas of the flexible connecting layer 3 to leak. During the movement of the threaded block 20, the connecting rod 27 can be synchronously driven to move along the limiting rod 21. At this time, the limiting rod 21 can limit the connecting rod 27, so that the connecting rod 27 can stably drive the first magnetic block 23 to move, thereby further improving the stability of the engagement with the air supply pipe 11.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A urine oxygen measuring device, comprising a urinary catheter body (1), wherein a flexible probe (2) is fixedly connected to the upper end of the urinary catheter body (1), and a flexible connecting layer (3) is fixedly connected to the outer side of the urinary catheter body (1); It is characterized in that Also includes: An electrode (5), wherein the electrode (5) is fixedly connected to the inner side of the urinary catheter body (1), and a conductive wire (7) is electrically connected to the electrode (5), and the conductive wire (7) is arranged to penetrate the inner side wall of the urinary catheter body (1), and the conductive wire (7) extends to the outer side of the urinary catheter body (1); a blocking block (12), the blocking block (12) being nested and connected to the side wall of the urinary catheter body (1), a connecting ring (16) being fixedly connected to the outside of the urinary catheter body (1), and an air supply tube (11) penetrating and connected to the inside of the outer end side wall of the urinary catheter body (1); A docking joint (4) is docked with the outer end of the urinary catheter body (1), a tooth plate (18) is fixedly connected to the upper side of the docking joint (4), and a snap-fit ​​mechanism capable of limiting the position of the air supply pipe (11) is provided on the inner side of the urinary catheter body (1).

2. The urine oxygen measuring device according to claim 1, characterized in that: The outer side of the urinary catheter body (1) is fixedly connected to a wiring terminal (8), the outer end of the conductive wire (7) is electrically connected to the wiring terminal (8), and the wiring terminal (8) is also electrically connected to a connecting wire (6), and the outer end of the connecting wire (6) is fixedly connected to a network cable connector (10), and an insulating tube (9) is sleeved on the outer side of the connector between the wiring terminal (8) and the connecting wire (6).

3. The urine oxygen measuring device according to claim 2, characterized in that: The electrodes (5) are arranged in multiple groups on the inner side of the urinary catheter body (1), the multiple groups of conductive wires (7) are respectively connected to the positive and negative electrodes of the wiring terminals (8), and the network cable connector (10) is connected to the oxygen sensor.

4. The urine oxygen measuring device according to claim 1, characterized in that: A fixing rod (13) is fixedly connected to the inner side of the connecting ring (16), the blocking block (12) is nested and connected to the outer side of the fixing rod (13), a buffer spring (14) is fixedly connected between the blocking block (12) and the connecting ring (16), and a blocking plug (15) is fixedly connected to the top end of the air supply pipe (11).

5. The urine oxygen measuring device according to claim 4, characterized in that: The connecting ring (16) is arranged on the inner side of the flexible connecting layer (3), and a ventilation hole is provided on the connecting ring (16). The two sides of the blocking block (12) are designed to be inclined when viewed from above.

6. The urine oxygen measurement device according to claim 1, characterized in that: The top end of the air supply pipe (11) is designed to be arc-shaped, the blocking block (12) forms a sliding structure through the air supply pipe (11) and the fixing rod (13), and the blocking block (12) forms an elastic structure through the buffer spring (14) and the connecting ring (16).

7. The urine oximetry device according to claim 1, characterized in that: The engaging mechanism comprises a docking block (25), the docking block (25) being nested and connected to the urinary catheter body (1), a connecting spring (26) being fixedly connected between the upper end of the docking block (25) and the urinary catheter body (1), and a second magnetic block (24) being fixedly connected to the upper end of the docking block (25); The outer end of the urinary catheter body (1) is internally connected with a threaded rod (19), the inner end of the threaded rod (19) is fixedly connected with a gear (17), and the outer end of the threaded rod (19) is threadedly connected with a threaded block (20), while the outer side of the threaded block (20) is fixedly connected with a connecting rod (27); The inner side of the urinary catheter body (1) is fixedly connected to a limiting rod (21), and the outer side of the limiting rod (21) is nested with a connecting rod (27), and the upper connecting rod (27) is fixedly connected to a moving rod (22), and the outer end of the moving rod (22) is fixedly connected to a first magnetic block (23), and the first magnetic block (23) is nested and connected to the inner side of the urinary catheter body (1).

8. The urine oxygen measuring device according to claim 7, characterized in that: The gear (17) and the toothed plate (18) are meshed with each other, and the connecting rod (27) forms a sliding structure through the threaded block (20) and the limiting rod (21).

9. The urine oxygen measurement device according to claim 7, characterized in that: The first magnetic block (23) and the second magnetic block (24) are magnets of different names, the lower end of the docking block (25) is docked to the inside of a docking groove provided on the outside of the air supply pipe (11), and the docking block (25) forms an elastic structure with the urinary catheter body (1) via a connecting spring (26).

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