Urethral catheter capable of measuring pressure

Abstract

The utility model discloses a catheter for measuring temperature and pressure, and relates to the technical field of medical instruments, the catheter comprises a catheter main body and a measuring main body, the measuring main body comprises a shell connected with the catheter main body, a processing module is arranged in the shell, the processing module is electrically connected with a pressure sensor and a temperature sensor, and the processing module is electrically connected with the pressure sensor and the temperature sensor. An excretion channel is arranged in the catheter main body, the pressure sensor extends into the excretion channel at the outlet section of the catheter main body, and the temperature sensor is positioned at the inlet section of the catheter main body. The temperature and pressure monitoring device has the beneficial effects of continuously monitoring temperature and pressure and reducing the measurement pressure of medical personnel.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a pressure-measuring urinary catheter. Background Art

[0002] In the prior art, in order to measure the intra-abdominal pressure of a patient, medical personnel generally use an indirect measurement method. The indirect measurement method is a method of indirectly measuring the intra-abdominal pressure by measuring the inferior vena cava pressure, intragastric pressure or bladder pressure. Among them, the cystometry method is simple, accurate and has good correlation. Therefore, the measurement method of intra-abdominal pressure using the bladder is widely used.

[0003] The specific cystometry method is as follows: let the patient lie flat, and under sterile operation, insert the catheter body into the bladder. After the bladder is empty, inject 50-100ml of sterile saline into the bladder through the catheter body. Clamp the catheter, connect the catheter to the urine bag, connect the catheter to the drainage bag with a three-way connector, and then connect the pressure gauge for measurement. The height of the water column measured by the pressure gauge is the pressure value.

[0004] However, this method still has several drawbacks: Each cystometry measurement requires medical personnel to perform it, placing significant strain on patients, especially at night, as they frequently need to monitor for any abnormalities. Furthermore, cystometry cannot measure pressure continuously, preventing real-time monitoring of patients' health data.

[0005] Therefore, the existing technology needs to be improved. Utility Model Content

[0006] The technical problem to be solved by the present invention is that the bladder pressure measurement in the existing technology cannot be continuously monitored, and frequent pressure measurement puts great pressure on medical staff. The purpose is to provide a pressure-measuring catheter that adopts corresponding technical means to have the beneficial effects of continuously monitoring temperature and pressure and reducing the measurement pressure of medical staff.

[0007] The utility model is achieved through the following technical solutions:

[0008] A pressure-measuring catheter comprises a catheter body and a measuring body, the measuring body comprising a housing connected to the catheter body, a processing module disposed within the housing, the processing module being electrically connected to a pressure sensor and a temperature sensor, an excretion channel being provided within the catheter body, the pressure sensor extending into the excretion channel at the outlet section of the catheter body, and the temperature sensor being located at the inlet section of the catheter body.

[0009] In the above technical solution, the measurement function is achieved by relying on a temperature sensor and a pressure sensor. During use, the catheter body is inserted into the patient's bladder. Urine in the bladder enters through the inlet section of the catheter body and is then discharged from the outlet section of the catheter body. Because the temperature sensor is located in the inlet section of the catheter body, it can directly detect the temperature in the bladder with relatively high accuracy. The pressure sensor is located in the excretion channel of the outlet section of the catheter body. The excretion channel is connected to the bladder, so the pressure sensor can directly detect the pressure in the bladder with relatively high accuracy. After measurement, the normal catheterization of the catheter body is not affected and it does not need to be removed, allowing for continuous monitoring of the patient's temperature and pressure.

[0010] Furthermore, in the present invention, the catheter body includes a flexible tube and a rigid tube connected to each other, the housing is connected to the rigid tube, and the temperature sensor is connected to the flexible tube.

[0011] Furthermore, in the present invention, the hard tube is connected to an injection connector, the flexible tube is provided with an injection hole connected to the injection connector, and the flexible tube is provided with a balloon connected to the injection hole.

[0012] Furthermore, in the present invention, the injection connector is connected to a reinforcement plate, and the reinforcement plate is connected to the rigid tube.

[0013] Furthermore, in the present invention, a wire hole is provided inside the catheter body, and the wiring connecting the processing module passes through the wire hole and is connected to the temperature sensor.

[0014] Furthermore, in the present invention, a plurality of drainage holes are provided on the side wall of the inlet section of the catheter body, and the drainage holes are communicated with the drainage channel.

[0015] Furthermore, in the present invention, the end of the outlet section of the catheter body is connected to a lead-out tube, the lead-out tube is connected to a urine bag, and the lead-out tube is provided with a switch.

[0016] Furthermore, in the present invention, the processing module is configured as a PCBA board, and the PCBA board integrates a single-chip microcomputer and a power supply.

[0017] Furthermore, in the present invention, the PCBA board is electrically connected to a Bluetooth / WiFi data transmission module.

[0018] Furthermore, in the present invention, the power supply is configured as a detachable button battery.

[0019] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0020] 1. Simultaneous temperature and pressure detection: During use, the catheter body is inserted into the patient's bladder. Urine in the bladder enters through the catheter body's inlet section and exits through the catheter body's outlet section. Because the temperature sensor is located in the inlet section, it can directly and accurately measure the temperature within the bladder. The pressure sensor is located in the drainage channel of the catheter body's outlet section, which is connected to the bladder, allowing it to directly and accurately measure the pressure within the bladder.

[0021] 2. Continuous Monitoring: The measurement function is achieved by relying on temperature sensors and pressure sensors. Catheterization is performed through the main body of the catheter. After the measurement is completed, there is no need to remove the catheter, which has minimal impact on the patient. The patient's temperature and pressure can be continuously monitored. After the initial test, there is no need to remove the catheter, which reduces the operating pressure on medical staff and has a better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0023] Figure 1 This is an overall schematic diagram of a temperature and pressure measuring urinary catheter of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the measuring body of the present utility model;

[0025] Figure 3 It is a cross-sectional schematic diagram of the hose of the present utility model;

[0026] Figure 4 This is a schematic diagram of the urinary catheter body of the present invention connected to a urine bag.

[0027] The marks and corresponding parts names in the accompanying drawings are: 1-catheter body, 101-hose, 102-hard tube, 103-excretion channel, 104-excretion hole, 105-wire hole, 2-measuring body, 201-shell, 202-processing module, 203-cable, 204-button battery, 3-pressure sensor, 4-temperature sensor, 5-injection connector, 501-reinforcement sheet, 6-lead-out tube, 601-switch, 7-urine bag. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and drawings. The schematic implementation methods of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention. The following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] It should be noted that similar numbers and letters represent similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance. In the description of the embodiment of the present utility model, "multiple" represents at least 2. In the description of the embodiment of the present utility model, it should also be noted that, unless otherwise clearly stipulated and limited, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0030] Example

[0031] This embodiment provides a urinary catheter for measuring temperature and pressure, such as Figures 1-4 As shown, the specific structure is described as follows.

[0032] Please refer to Figure 1 As shown, the temperature and pressure measuring catheter of this embodiment mainly consists of two parts: a catheter body 1 and a measuring body 2. The catheter body 1 is used to drain urine from the patient's bladder, and the measuring body 2 is used to detect the temperature of urine and the pressure of the bladder.

[0033] Furthermore, the catheter body 1 is divided into two parts: a flexible tube 101 and a rigid tube 102. The flexible tube 101 can be made of natural latex, which is non-toxic and non-irritating, with a soft texture and adaptable insertion into the patient. The rigid tube 102 can be made of PVC, which is relatively hard and suitable for connection to other structures. In other embodiments, the catheter body 1 can be formed from a single material.

[0034] Combine Figure 1 and Figure 3As shown, the catheter body 1 has an internal drainage channel 103. Two drainage holes 104 are defined in the sidewall of the left end of the catheter body 1. The two drainage holes 104 are symmetrical and communicate with the drainage channel 103. The end of the drainage channel 103, distal from the drainage holes 104, leads to the right end surface of the catheter body 1. Even if one of the two drainage holes 104 becomes blocked by the bladder wall, the other drainage hole 104 can still function to drain urine, resulting in a better user experience.

[0035] In some implementations of this embodiment, Figure 1 and Figure 2 As shown, the measurement body 2 mainly consists of an external housing 201 and an internal processing module 202. The housing 201 has a trapezoidal shape with a wide top and a narrow bottom, and can be made of ABS material. The sides of the housing 201 and the sides of the rigid tube 102 are fixedly connected by bonding.

[0036] Further, combined Figure 2 As shown, the processing module 202 adopts the PCBA board in the prior art, which has the advantages of mature technology, stability and reliability. A series of electronic components such as a single-chip microcomputer, a power supply, and a capacitor are integrated on the PCBA board. The PCBA board is connected to the pressure sensor 3 through a wire. The pressure sensor 3 is fixedly mounted on the left side wall of the housing 201, and the probe of the pressure sensor 3 extends horizontally to the left from the left side wall of the housing 201. A through hole is provided in the outlet section of the catheter body 1 (i.e., the pipe section close to the outlet). After the housing 201 and the hard tube 102 are fixedly connected, the pressure sensor 3 extends from the through hole to the internal excretion channel 103 to detect the pressure in the excretion channel 103. Since the excretion channel 103 is connected to the bladder, the pressure inside the bladder can be detected.

[0037] Combine Figure 1 、 Figure 2 qualified Figure 3 As shown, a wire hole 105 is defined within the catheter body 1. The wire hole 105 extends parallel to and independently of the direction of the excretion passage 103. One end of the wire hole 105 abuts against the housing 201, while the other end abuts against the temperature sensor 4. The temperature sensor 4 is mounted within the inlet section of the catheter body 1 (i.e., the section near the excretion passage 104), within the wire hole 105. A cable 203 is arranged within the wire hole 105. One end of the cable 203 passes through the housing 201 and connects to the PCBA board, while the other end of the cable 203 connects to the temperature sensor 4. Since the temperature sensor 4 is located within the bladder after insertion, the temperature at the inlet section of the catheter body 1 is consistent with the temperature within the bladder, enabling the temperature sensor 4 to measure urine temperature. In other embodiments, the temperature sensor 4 can extend its probe deeper into the excretion passage 103 or the excretion passage 104 to collect data by detecting urine temperature.

[0038] It should be noted that a Bluetooth data transmission module or a WiFi data transmission module is installed on the PCBA board, such as the MS44SF11 Bluetooth 5.4 module or the FSC-BW101 Bluetooth Wi-Fi two-in-one module. The Bluetooth data transmission module or the WiFi data transmission module transmits the collected data to the terminal (such as the computer at the nurse station) through wireless transmission, so that medical staff can observe the patient's temperature and pressure data at any time.

[0039] Furthermore, a battery slot is installed on the PCBA board, and a button battery 204 can be placed in the battery slot. The button battery 204 serves as a power source to provide energy for the operation of the pressure sensor 3 and the temperature sensor 4. The button battery 204 can be removed from the battery slot for easy replacement.

[0040] In some implementations of this embodiment, Figure 4 As shown, the right end of the catheter body 1 is connected to the lead-out tube 6, and the lead-out tube 6 is connected to the urine bag 7. A switch 601 is installed on the lead-out tube 6. The switch 601 controls the opening and closing state of the lead-out tube 6. When the switch 601 is turned on, it is convenient for the urine bag 7 to collect urine. When the switch 601 is closed, it is convenient for the pressure sensor 3 to check the pressure.

[0041] Combine Figure 1 As shown, the rigid tube 102 is connected to the injection connector 5, which is located on the side opposite the measuring body 2. A reinforcing sheet 501 is a triangular plastic sheet, one side of which is fixedly connected to the injection connector 5, and the other side of which is fixedly connected to the rigid tube 102. The reinforcing sheet 501 increases the connection strength and prevents the injection connector 5 from accidentally breaking. The interior of the flexible tube 101 is provided with an injection hole connected to the injection connector 5. The flexible tube 101 is equipped with a balloon connected to the injection hole. By injecting water into the injection connector 5, the balloon inflates and acts as a fixator.

[0042] The operating principle of the temperature and pressure measuring urinary catheter of the present invention is as follows:

[0043] During use, the flexible tube 101 of the catheter body 1 is inserted into the patient's bladder, and sterile saline is injected through the connected injection connector 5. The balloon is inflated to secure the catheter body 1. Urine in the bladder enters the catheter body 1 through the drainage hole 104, then flows into the urine bag 7 through the drainage channel 103 and the outlet tube 6. The temperature sensor 4 can directly detect the temperature of the bladder, which is relatively accurate. The pressure sensor 3 is located in the drainage channel 103 at the outlet section of the catheter body 1. The drainage channel 103 is connected to the bladder. When the switch 601 is closed, the pressure sensor 3 can directly detect the pressure value in the bladder with relatively accurate accuracy. The temperature sensor 4 and the pressure sensor 3 transmit the detected data to the microcontroller on the PCBA board, which transmits the data to the computer at the nurse's station via the Bluetooth / WiFi data transmission module. If the data received by the computer is abnormal, the computer can promptly alarm, reminding medical staff to deal with the abnormal situation in a timely manner.

[0044] In summary, the present invention provides a urinary catheter for measuring temperature and pressure, comprising a catheter body 1 and a measuring body 2. The measuring body 2 includes a housing 201 connected to the catheter body 1. The housing 201 houses a processing module 202, which is electrically connected to a pressure sensor 3 and a temperature sensor 4. A drainage channel 103 is provided within the catheter body 1. The pressure sensor 3 extends into the drainage channel 103 at the outlet of the catheter body 1, while the temperature sensor 4 is located at the inlet of the catheter body 1. The catheter body 1 includes a flexible tube 101 and a rigid tube 102, which are interconnected. The housing 201 is connected to the rigid tube 102, and the temperature sensor 4 is connected to the flexible tube 101. The rigid tube 102 is connected to an injection connector 5. The injection connector 5 is connected to a reinforcement plate 501, which is connected to the rigid tube 102. The catheter body 1 includes a cable hole 105, through which the cable 203 connected to the processing module 202 passes to connect to the temperature sensor 4. The sidewall of the inlet section of the catheter body 1 is provided with multiple drainage holes 104, which communicate with the drainage channel 103. The outlet section of the catheter body 1 is connected to a discharge tube 6, which is connected to a urine bag 7 and equipped with a switch 601. The processing module 202 is configured as a PCBA board, which integrates a single-chip microcontroller and a power supply. The PCBA board is electrically connected to a Bluetooth / WiFi data transmission module. The power supply is a removable button battery 204.

[0045] Therefore, the temperature and pressure measuring urinary catheter of the present invention integrates urine collection, feedback, and data transmission functions. It also adopts a tree-like shape, integrating the catheter body 1, the measuring body 2, and the injection connector 5 into one unit, thus improving the overall volume. This utility model has the beneficial effect of continuously monitoring temperature and pressure, reducing the measurement pressure on medical personnel.

[0046] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific implementation method of the utility model and is not intended to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A manometric urinary catheter, characterized in that: The invention comprises a urinary catheter body (1) and a measuring body (2), wherein the measuring body (2) comprises a shell (201) connected to the urinary catheter body (1), a processing module (202) is provided in the shell (201), and the processing module (202) is electrically connected to a pressure sensor (3) and a temperature sensor (4), an excretion channel (103) is provided inside the urinary catheter body (1), the pressure sensor (3) extends into the excretion channel (103) at the outlet section of the urinary catheter body (1), and the temperature sensor (4) is located at the inlet section of the urinary catheter body (1). The outside of the urinary catheter body (1) is provided with an outlet tube (6), the outlet tube (6) is connected to a urine bag (7), and the outlet tube (6) is provided with a switch (601). The side wall of the inlet section of the urinary catheter body (1) is provided with a plurality of drainage holes (104), and the drainage holes (104) are communicated with the drainage channel (103).

2. The manometric urinary catheter according to claim 1, characterized in that: The urinary catheter body (1) comprises a flexible tube (101) and a hard tube (102) connected to each other, the housing (201) is connected to the hard tube (102), and the temperature sensor (4) is connected to the flexible tube (101).

3. The manometric urinary catheter according to claim 2, characterized in that: The hard tube (102) is connected to an injection connector (5), the hose (101) is provided with an injection hole communicating with the injection connector (5), and the hose (101) is provided with a balloon communicating with the injection hole.

4. The manometric urinary catheter according to claim 3, characterized in that: The injection connector (5) is connected to a reinforcement sheet (501), and the reinforcement sheet (501) is connected to the hard tube (102).

5. The manometric urinary catheter according to claim 1, characterized in that: A wire hole (105) is provided inside the catheter body (1), and the wiring (203) connected to the processing module (202) passes through the wire hole (105) and is connected to the temperature sensor (4).

6. The manometric urinary catheter according to any one of claims 1 to 5, characterized in that: The processing module (202) is configured as a PCBA board, and the PCBA board is integrated with a single-chip microcomputer and a power supply.

7. The manometric urinary catheter according to claim 6, characterized in that: The PCBA board is electrically connected to a Bluetooth / WiFi data transmission module.

8. The manometric urinary catheter according to claim 6, characterized in that: The power supply is configured as a detachable button battery (204).

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