Catheter capable of measuring temperature and pressure
By integrating temperature sensors and pressure sensors in the catheter, the problem of bladder pressure measurement cannot be continuously monitored is solved, real-time monitoring of patient temperature and pressure is achieved, and the operational burden of medical staff is reduced.
Patent Information
- Application Number
- CN202421823656.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-30
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-07-30
AI Technical Summary
The existing bladder pressure measurement cannot be continuously monitored, and frequent pressure measurements have a great pressure on medical staff and cannot monitor patient physical data in real time.
A catheter for temperature measurement and pressure measurement is designed, and a temperature sensor and pressure sensor are integrated into the catheter to achieve continuous monitoring of bladder temperature and pressure. The sensor data is transmitted in real time through the PCBA board and Bluetooth/WiFi module.
Continuous monitoring of patient temperature and pressure is achieved, reducing the operating frequency of medical staff, reducing measurement pressure, and providing real-time data feedback.
Smart Images
Figure CN223054880U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical devices, and particularly relates to a urinary catheter for temperature and pressure measurement. Background Art
[0002] In the prior art, in order to measure the intra-abdominal pressure of a patient, medical staff generally adopt 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 bladder pressure measurement method is simple, accurate and has good correlation. Therefore, the measurement method of using the bladder to measure the intra-abdominal pressure is widely adopted.
[0003] The specific steps of the bladder pressure measurement method are as follows: Let the patient lie flat. Under aseptic operation, insert the main body of the urinary catheter into the bladder. After the bladder is emptied, inject 50-100 ml of sterile saline into the bladder through the main body of the urinary catheter, clamp the urinary catheter, connect the urinary catheter to the urine bag, connect the urinary catheter and the drainage bag with a three-way joint, and then connect a pressure gauge for measurement. The height of the water column measured by the pressure gauge is the pressure value.
[0004] However, this measurement method still has the following defects: Each measurement of this bladder pressure measurement method requires the operation of medical staff. For patients who need to be frequently measured to observe whether there are any abnormalities in the body, so multiple operations put great pressure on medical staff, especially at night. And this bladder pressure measurement method cannot continuously measure pressure and cannot real-time monitor the patient's body data.
[0005] Therefore, the prior art needs to be improved. Content of the Utility Model
[0006] The technical problem to be solved by the utility model is that the bladder pressure measurement in the prior art cannot continuously monitor, and frequent pressure measurement puts great pressure on medical staff. The purpose is to provide a urinary catheter for temperature and pressure measurement, adopting corresponding technical means, having the beneficial effects of continuous temperature and pressure monitoring and reducing the measurement pressure of medical staff.
[0007] The utility model is realized by the following technical solutions:
[0008] A urinary catheter for temperature and pressure measurement, which includes a catheter main body and a measurement main body. The measurement main body includes a housing connected to the catheter main body. A processing module is arranged in the housing. The processing module is electrically connected to a pressure sensor and a temperature sensor. An excretion channel is arranged inside 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 located at the inlet section of the catheter main body.
[0009] In the above technical solution, the measurement function is realized by relying on a temperature sensor and a pressure sensor. When in use, the catheter main body is inserted into the patient's bladder. Urine in the bladder enters from the inlet section of the catheter main body and then is discharged from the outlet section of the catheter main body. Since the temperature sensor is located in the inlet section of the catheter main body, the temperature sensor can directly detect the relatively accurate temperature in the bladder. The pressure sensor is located in the excretion channel at the outlet section of the catheter main body, and the excretion channel is communicated with the bladder, so the pressure sensor can directly detect the relatively accurate pressure in the bladder. After measurement, it does not affect the normal urine drainage of the catheter main body and does not need to be pulled out, and the temperature and pressure of the patient can be continuously monitored.
[0010] Further, in the present utility model, the catheter main 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] Further, in the present utility model, the rigid tube is connected with an injection joint, the flexible tube is provided with an injection hole communicated with the injection joint, and the flexible tube is provided with a balloon communicated with the injection hole.
[0012] Further, in the present utility model, the injection joint is connected with a reinforcing piece, and the reinforcing piece is connected with the rigid tube.
[0013] Further, in the present utility model, a wire hole is provided inside the catheter main body, and a wiring harness connecting the processing module passes through the wire hole and is connected with the temperature sensor.
[0014] Further, in the present utility model, a plurality of excretion holes are provided on the side wall of the inlet section of the catheter main body, and the excretion holes are communicated with the excretion channel.
[0015] Further, in the present utility model, an outlet tube is connected to the end of the outlet section of the catheter main body, the outlet tube is connected with a urine bag, and a switch is provided on the outlet tube.
[0016] Further, in the present utility model, the processing module is configured as a PCBA board, and the PCBA board integrates a single-chip microcomputer and a power supply.
[0017] Further, in the present utility model, the PCBA board is electrically connected with a Bluetooth / WiFi data transmission module.
[0018] Further, in the present utility model, the power supply is configured as a detachable button battery.
[0019] Compared with the prior art, the present utility model has the following advantages and beneficial effects:
[0020] 1. Simultaneous temperature and pressure detection: When in use, the catheter main body is inserted into the patient's bladder. Urine in the bladder enters from the inlet section of the catheter main body and then exits from the outlet section of the catheter main body. Since the temperature sensor is located at the inlet section of the catheter main body, the temperature sensor can directly detect the relatively accurate temperature in the bladder. The pressure sensor is located in the excretion channel at the outlet section of the catheter main body, and the excretion channel is connected to the bladder, so the pressure sensor can directly detect the relatively accurate pressure value in the bladder.
[0021] 2. Continuous monitoring: The measurement function is realized by relying on the temperature sensor and the pressure sensor, and catheterization is carried out by relying on the catheter main body. After the measurement is completed, it does not need to be pulled out, which has less impact on the patient. The temperature and pressure of the patient can be continuously monitored. After the first detection, there is no need to disassemble, which reduces the operation pressure of medical staff and has a good use effect. Description of the Drawings
[0022] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, form a part of this application, and do not constitute a limitation to the embodiments of the present invention. In the drawings:
[0023] Figure 1 It is an overall schematic diagram of a catheter for measuring temperature and pressure of the present invention;
[0024] Figure 2 It is an internal structure schematic diagram of the measurement main body of the present invention;
[0025] Figure 3 It is a cross-sectional schematic diagram of the hose of the present invention;
[0026] Figure 4 It is a schematic diagram of the catheter main body of the present invention connecting to a urine bag.
[0027] Marks in the drawings and corresponding component names: 1 - catheter main body, 101 - hose, 102 - hard tube, 103 - excretion channel, 104 - excretion hole, 105 - wire hole, 2 - measurement main body, 201 - housing, 202 - processing module, 203 - wiring harness, 204 - button battery, 3 - pressure sensor, 4 - temperature sensor, 5 - injection joint, 501 - reinforcement piece, 6 - lead-out tube, 601 - switch, 7 - urine bag. Detailed Embodiments
[0028] To make the objectives, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the embodiments and the accompanying drawings. The illustrative embodiments and descriptions of the present utility model are only used to explain the present utility model and are not intended to limit the present utility model. The following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.
[0029] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance. In the description of the embodiments of the present utility model, "a plurality" represents at least two. In the description of the embodiments of the present utility model, it should also be noted that unless otherwise clearly specified and limited, if the terms "set", "installed", "connected", "connected" are used, they 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0030] Embodiment
[0031] This embodiment provides a catheter for temperature and pressure measurement, as Figures 1-4 shown, and the specific structure is described as follows.
[0032] Please refer to Figure 1 shown. The catheter for temperature and pressure measurement in this embodiment mainly consists of two parts: a catheter body 1 and a measurement body 2. The catheter body 1 is used to drain the urine in the patient's bladder, and the measurement body 2 is used to detect the temperature of the 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 has the characteristics of being non-toxic and non-irritating, and is soft in texture and can adapt to being inserted into the patient's body. The rigid tube 102 can be made of PVC material, which is relatively hard and suitable for connecting with other structures. In other embodiments, the catheter body 1 can be formed by processing with one kind of material.
[0034] Combined with Figure 1 and Figure 3As shown, an excretion channel 103 is provided inside the catheter body 1. Two excretion holes 104 are provided on the side wall at the left end of the catheter body 1. The two excretion holes 104 are symmetric to each other, and the excretion holes 104 communicate with the excretion channel 103. One end of the excretion channel 103 away from the excretion holes 104 leads to the end face at the right end of the catheter body 1. Even if one of the two excretion holes 104 is blocked by the inner wall of the bladder, the other excretion hole 104 can still play the role of excreting urine, and the use effect is better.
[0035] In some embodiments of this embodiment, in combination with Figure 1 and Figure 2 As shown, the measurement body 2 is mainly composed of two parts: an external housing 201 and an internal processing module 202. The outer shape of the housing 201 is a trapezoid that is wider at the top and narrower at the bottom, and it can be made of ABS material. The side of the housing 201 and the side of the hard tube 102 are fixedly connected by bonding.
[0036] Furthermore, in combination with Figure 2 As shown, the processing module 202 uses a 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 installed 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 (i.e., the pipe section near the outlet) of the catheter body 1. After the housing 201 and the hard tube 102 are fixedly connected, the pressure sensor 3 extends into the internal excretion channel 103 through this through hole to detect the pressure in the excretion channel 103. Since the excretion channel 103 communicates with the bladder, the pressure in the bladder can be detected.
[0037] In combination with Figure 1 、 Figure 2 qualified Figure 3 As shown, a wire hole 105 is provided inside the catheter body 1. The extending direction of the wire hole 105 is parallel and independent of the extending direction of the excretion channel 103. One end of the wire hole 105 is docked with the housing 201, and the other end of the wire hole 105 is docked with the temperature sensor 4. The temperature sensor 4 is installed at the position of the inlet section (i.e., the pipe section near the excretion hole 104) of the catheter body 1 and is located inside the wire hole 105. The wiring harness 203 is arranged inside the wire hole 105. One end of the wiring harness 203 passes through the housing 201 and is connected to the PCBA board, and the other end of the wiring harness 203 is connected to the temperature sensor 4. Since the temperature sensor 4 is located inside the bladder after insertion, the temperature at the inlet section of the catheter body 1 is the same as the temperature inside the bladder, and the temperature sensor 4 can directly measure the temperature. In other embodiments, the temperature sensor 4 can extend the probe into the excretion channel 103 or the excretion hole 104 to collect data by detecting the temperature of the urine.
[0038] It should be noted that a Bluetooth data transmission module or a WiFi data transmission module is installed on the PCBA board. For example, an MS44SF11 type Bluetooth 5.4 module or an FSC-BW101 Bluetooth Wi-Fi dual-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, facilitating medical staff to observe the temperature and pressure data of the patient 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 taken out of the battery slot for easy replacement.
[0040] In some embodiments of this embodiment, in combination with Figure 4 As shown, a lead-out tube 6 is connected to the right end of the catheter body 1. The lead-out tube 6 is connected to the urine bag 7. A switch 601 is installed on the lead-out tube 6 to control the opening and closing state of the lead-out tube 6. When the switch 601 is opened, 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] In combination with Figure 1 As shown, a hard tube 102 is connected to an injection joint 5. The injection joint 5 is located on the opposite side of the measurement body 2. The reinforcing piece 501 is a triangular plastic sheet. One side of the reinforcing piece 501 is fixedly connected to the injection joint 5, and the other side of the reinforcing piece 501 is fixedly connected to the hard tube 102. The reinforcing piece 501 increases the connection strength and prevents the injection joint 5 from being accidentally broken. An injection hole communicating with the injection joint 5 is provided inside the flexible tube 101, and a balloon communicating with the injection hole is installed on the flexible tube 101. By injecting water into the injection joint 5, the balloon is inflated to play a fixing role.
[0042] The working principle of the temperature and pressure measuring catheter of the present utility model is as follows:
[0043] When in use, insert the flexible tube 101 of the catheter body 1 into the patient's bladder, inject sterile normal saline through the connected injection joint 5, and inflate the balloon to fix the catheter body 1. The urine in the bladder enters through the drainage hole 104 of the catheter body 1, and then flows into the urine bag 7 through the drainage channel 103 and the lead-out tube 6. The temperature sensor 4 can directly detect the temperature that more accurately reflects the bladder. 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 relatively accurate pressure value in the bladder. The temperature sensor 4 and the pressure sensor 3 transmit the detected data to the single-chip microcomputer on the PCBA board, and the single-chip microcomputer transmits the data to the computer at the nurse station through the Bluetooth / WiFi data transmission module. When the data received by the computer is abnormal, the computer can give an alarm in time to remind medical staff to handle the abnormal situation in time.
[0044] In summary, the present utility model provides a catheter for temperature and pressure measurement, which includes a catheter body 1 and a measurement body 2. The measurement body 2 includes a housing 201 connected to the catheter body 1. A processing module 202 is provided in the housing 201. The processing module 202 is electrically connected to a pressure sensor 3 and a temperature sensor 4. A drainage channel 103 is provided inside the catheter body 1. The pressure sensor 3 extends into the drainage channel 103 at the outlet section of the catheter body 1, and the temperature sensor 4 is located at the inlet section of the catheter body 1. The catheter body 1 includes a flexible tube 101 and a rigid tube 102 connected to each other. 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 joint 5. The injection joint 5 is connected to a reinforcing piece 501, and the reinforcing piece 501 is connected to the rigid tube 102. A wire hole 105 is provided inside the catheter body 1, and a wiring harness 203 connected to the processing module 202 passes through the wire hole 105 and is connected to the temperature sensor 4. A plurality of drainage holes 104 are provided on the side wall of the inlet section of the catheter body 1, and the drainage holes 104 are communicated with the drainage channel 103. The end of the outlet section of the catheter body 1 is connected to a lead-out tube 6. The lead-out tube 6 is connected to a urine bag 7, and a switch 601 is provided on the lead-out tube 6. The processing module 202 is configured as a PCBA board, and the PCBA board integrates a single-chip microcomputer and a power supply. The PCBA board is electrically connected to a Bluetooth / WiFi data transmission module. The power supply is configured as a detachable button battery 204.
[0045] Therefore, the catheter for temperature and pressure measurement of the present utility model integrates the functions of urine collection, feedback, and data transmission, and adopts a tree-like shape, integrating the catheter body 1, the measurement body 2, and the injection joint 5, making the overall volume performance better. The present utility model has the beneficial effects of continuous temperature and pressure monitoring and reducing the measurement pressure of medical staff.
[0046] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present utility model. It should be understood that the above description is only the specific embodiments of the present utility model and is not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A urinary catheter for temperature and pressure measurement, characterized in that, It includes a urinary catheter body (1) and a measurement body (2). The measurement body (2) includes a housing (201) connected to the urinary catheter body (1). A processing module (202) is arranged inside the housing (201). 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).
2. The catheter for temperature and pressure measurement according to claim 1, wherein The urinary catheter body (1) includes a flexible tube (101) and a rigid tube (102) connected to each other. The housing (201) is connected to the rigid tube (102), and the temperature sensor (4) is connected to the flexible tube (101).
3. The catheter for temperature and pressure measurement according to claim 2, characterized in that, The rigid tube (102) is connected with an injection joint (5). The flexible tube (101) is provided with an injection hole communicating with the injection joint (5), and the flexible tube (101) is provided with a balloon communicating with the injection hole.
4. The catheter for temperature and pressure measurement according to claim 3, characterized in that, The injection joint (5) is connected with a reinforcing piece (501), and the reinforcing piece (501) is connected to the rigid tube (102).
5. The catheter for temperature and pressure measurement according to claim 1, characterized in that, A wire hole (105) is provided inside the urinary catheter body (1). A wire harness (203) connecting the processing module (202) passes through the wire hole (105) and is connected to the temperature sensor (4).
6. The catheter for temperature and pressure measurement according to claim 1, characterized in that, A plurality of excretion holes (104) are provided on the side wall of the inlet section of the urinary catheter body (1), and the excretion holes (104) communicate with the excretion channel (103).
7. The catheter for temperature and pressure measurement according to claim 1, wherein An outlet tube (6) is connected to the end of the outlet section of the urinary catheter body (1). The outlet tube (6) is connected to a urine bag (7), and a switch (601) is provided on the outlet tube (6).
8. The urinary catheter for temperature and pressure measurement according to any one of claims 1-7, characterized in that, The processing module (202) is configured as a PCBA board, and the PCBA board integrates a single-chip microcomputer and a power supply.
9. The catheter for temperature and pressure measurement according to claim 8, wherein, The PCBA board is electrically connected to a Bluetooth / WiFi data transmission module.
10. The catheter for temperature and pressure measurement according to claim 8, characterized in that, The power supply is configured as a detachable button battery (204).