Urethral catheter capable of intelligently measuring temperature

Abstract

The utility model discloses a catheter capable of intelligently measuring temperature. The catheter comprises a catheter body and a temperature measuring device which are used in cooperation with each other. The temperature measuring device comprises a temperature sensor located in the pipe body and a temperature display device connected with the temperature sensor through a connecting wire. The temperature display device is positioned outside the tube body; the temperature display device comprises a display module and a control module. The display module comprises a signal processing unit and a display unit connected with the signal processing unit; the display unit displays the specific temperature according to the digital signal output by the signal processing unit; and the control module comprises a circuit control unit and a color control unit for controlling the color display of the display unit. The temperature display device communicated with the temperature sensor in the body is arranged, so that a patient can be transferred conveniently, the body temperature of the patient can be monitored in real time in the transferring process of the patient, the intelligent degree of the temperature display device is high, and great convenience is brought to diagnosis of medical staff.

Description

Technical Field

[0001] This utility model relates to the field of medical product technology, and in particular to a smart temperature-measuring urinary catheter. Background Technology

[0002] Urinary catheters are inserted into a patient's bladder to help the patient expel urine. They are common medical products in hospitals. Since the temperature inside the human bladder can reflect the body's core temperature well, adding a temperature sensor to the urinary catheter has become a common practice.

[0003] The temperature-sensitive urinary catheter disclosed in CN106237481A includes a catheter for draining urine, one end of which has a catheter port connected to a urine bag, and the other end of which has several drainage holes circumferentially arranged. It also includes a thermometer, the measuring end of which is inserted into the catheter wall near the catheter port and extends along the length of the catheter to the drainage holes. The compensation end of the thermometer is connected to a display instrument. The temperature sensor in this solution needs to be connected to relatively large monitoring equipment and display devices to show the measured temperature value to medical staff. This type of urinary catheter with a temperature sensor is inconvenient for patient transfer, and the patient's health index cannot be monitored during transfer, which is extremely inconvenient. Therefore, a new solution is needed to address these problems. Summary of the Invention

[0004] This invention overcomes the shortcomings of the prior art and provides an intelligent temperature-measuring urinary catheter, which facilitates patient transfer and provides real-time monitoring during the transfer process.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an intelligent temperature-measuring urinary catheter, comprising a tube body and a temperature measuring device used in conjunction with each other;

[0006] The temperature measuring device includes: a temperature sensor located inside the tube near the liquid inlet, and a temperature display device electrically connected to the temperature sensor via a connecting wire; the temperature display device is located outside the tube.

[0007] The temperature display device includes: a display module and a control module;

[0008] The display module includes: a signal processing unit, and a display unit connected to the signal processing unit; the signal processing unit includes a digital-to-analog converter and a comparator, and the display unit displays the specific temperature according to the digital signal output by the signal processing unit;

[0009] The control module includes: a circuit control unit for controlling the power output, and a color control unit for controlling the color display of the display unit according to the comparison logic of the comparator.

[0010] In a preferred embodiment of the present invention, the temperature display device further includes a serial communication module.

[0011] In a preferred embodiment of this utility model, the temperature display device has an output interface for connecting to a serial communication module on its side. A conversion cable is detachably connected through the output interface, and the conversion cable is used to transmit the data output by the serial communication module.

[0012] In a preferred embodiment of the present invention, the temperature measuring device further includes a power supply located inside the temperature display device, the power supply being connected to the temperature display device via a drive circuit.

[0013] In a preferred embodiment of the present invention, the tube body includes a catheter head for inserting into the bladder, and a double-layer tube fixedly connected to the catheter head, wherein a balloon is fixedly connected to the double-layer tube near the catheter head.

[0014] In a preferred embodiment of this utility model, the double-layer tube includes an outer tube and an inner tube. The outer tube is supported by a number of connecting pieces on the outside of the inner tube through a circumferential array, and a certain distance is formed between the outer tube and the inner tube. A through cavity one for fixing the connecting wire and a through cavity two for communicating with the balloon are formed between adjacent connecting pieces.

[0015] In a preferred embodiment of this utility model, an air pump tube connected to the end of the outer tube away from the balloon is fixedly connected to the cavity. An air valve is provided inside the air pump tube. An air pump ball is provided on the side of the air pump tube away from the balloon from the air valve. A vent hole is opened at the end of the air pump ball away from the air valve. By pressing the air pump ball, air can be circulated to the balloon through the air pump tube and the cavity.

[0016] In a preferred embodiment of this utility model, the air valve and the air pump tube are integrally formed. The air valve has a cross-shaped cut in the middle. Under normal conditions, the cross-shaped cut is closed to seal the air pump tube. When the air pump ball is pressed, the cross-shaped cut expands to form a passage connecting the external air and the inside of the balloon.

[0017] In a preferred embodiment of this utility model, the tube body is made of one of the following materials: polyurethane, silicone, latex, and polyvinyl chloride.

[0018] In a preferred embodiment of this utility model, the diameter of the tube is between 0.4cm and 0.6cm.

[0019] This utility model solves the defects existing in the background technology, and has the following beneficial effects:

[0020] (1) This utility model monitors the temperature inside the human bladder by setting a temperature sensor inside the tube, which makes it easier for medical staff to observe and judge the patient's body temperature. In addition, the temperature sensor is connected to an external temperature display device with an independent power supply. Compared with the prior art, it can display the specific patient temperature value without connecting to a large monitoring device, which is convenient for patient transfer and can still accurately measure the patient's body temperature during the patient transfer process, which is convenient for doctors to make a diagnosis.

[0021] (2) The temperature display device of this utility model is also equipped with a serial communication module, which can further transmit the signal to other monitoring equipment for integrated display through conversion wires, making it convenient for doctors to centrally monitor various health indicators of the human body, and has a higher degree of intelligence, convenience and practicality. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0023] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention;

[0024] Figure 2 This is a cross-sectional view of the tube body in this utility model;

[0025] Figure 3 This is a schematic diagram of the temperature display device in this utility model;

[0026] In the diagram: 1. Tube body; 11. Guide tube head; 12. Double-layer tube; 121. Inner tube; 122. Outer tube; 123. First passage; 124. Second passage; 13. Balloon; 131. Air pump tube; 132. Air valve; 133. Air pump ball; 1331. Vent hole; 2. Temperature measuring device; 21. Temperature sensor; 22. Connecting wire; 23. Temperature display device; 231. Display module; 2311. Signal processing unit; 23111. Digital-to-analog converter; 23112. Comparator; 2312. Display unit; 232. Control module; 2321. Circuit control unit; 2322. Color control unit; 233. Serial communication module. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0028] like Figure 1 , Figure 3As shown, a smart temperature-measuring urinary catheter includes a tube body 1 and a temperature measuring device 2 used in conjunction with each other. Specifically, the diameter of the tube body 1 is between 0.4cm and 0.6cm, and the tube body 1 is made of one of the following materials: polyurethane, silicone, latex, and polyvinyl chloride, to ensure that the tube body 1 has certain deformation properties. The temperature measuring device 2 includes: a temperature sensor 21 located inside the tube body 1 near the inlet end, and a temperature display device 23 electrically connected to the temperature sensor 21 via a connecting wire 22; the temperature display device 23 is located on the outside of the tube body 1. More specifically, the temperature display device 23 includes: a display module 231 and a control module 232; wherein, the display module 231 includes: a signal processing unit 2311 and a display unit 2312 connected to the signal processing unit 2311; the signal processing unit 2311 includes: a digital-to-analog converter 23111 and a comparator 23112, and the digital-to-analog converter... The converter 23111 is used to convert the analog signal output by the temperature sensor 21 through the connecting wire 22 into a digital signal. The comparison logic of the comparator 23112 is: after defining a normal temperature range, it determines whether the range obtained from the digital signal is within the temperature range. If it is, it outputs a "yes" signal; otherwise, it outputs a "no" signal. The display unit 2312 is used to display the specific temperature according to the digital signal output by the signal processing unit 2311. The control module 232 includes: a circuit control unit 2321 for controlling the power output, and a color control unit 2322 for controlling the color display of the display unit 2312 according to the comparison logic of the comparator 23112. Furthermore, the temperature measuring device 2 also includes a power supply placed inside the temperature display device 23. Specifically, the power supply is composed of dry cell batteries, and the power supply is connected to the temperature display device 23 through a drive circuit to supply power to it.

[0029] Based on the above setup, tube 1 is inserted into the bladder, bringing temperature sensor 21 into place. When urine flows through tube 1 and passes temperature sensor 21, referring to existing technology, temperature sensor 21 in temperature measuring device 2 generates an analog signal based on the thermoelectric effect principle. The corresponding analog signal generated by temperature sensor 21 is input to temperature display device 23 via connecting wire 22. After signal conversion by digital-to-analog converter 23111, the analog signal is converted into a digital signal, forming a specific temperature value. Comparator 23112 should be set to a normal temperature range before installation. Comparator 23112 compares the value output by digital-to-analog converter 23111 with the normal temperature range, thus outputting a "yes" signal if the value is within the normal temperature range, and a "yes" signal if the value is outside the normal temperature range. The display unit 2312 displays the converted specific temperature value on the display screen of the temperature display device 23 upon receiving a "no" signal. The drive circuit control unit 2321 is used to cut off or connect the power supply, controlling the operation or stop of the temperature measuring device 2. The color control unit 2322 controls the color change of the temperature value on the display screen according to the received "yes" or "no" signal, so that medical staff can judge whether the patient is within the normal body temperature range based on the displayed color of the temperature value, which is convenient for medical staff to make a diagnosis. Compared with the prior art, this utility model, by setting a temperature display device 23 connected to the temperature sensor 21, does not need to be directly connected to large monitoring equipment, which facilitates the transfer of patients and makes it easier to observe changes in the patient's body temperature during the transfer process, making it more convenient and intelligent.

[0030] Furthermore, the temperature display device 23 also includes a serial communication module 233. Specifically, the side of the temperature display device 23 is provided with an output interface for connecting the serial communication module 233. A conversion cable is detachably connected through the output interface. The conversion cable is used to transmit the data output by the serial communication module 233. By connecting the conversion cable to the temperature display device 23 and connecting it to another large medical monitoring device, the patient's current health indicators can be integrated and displayed on the medical monitoring device, making it more convenient for medical staff to make diagnoses.

[0031] like Figure 1 , Figure 2 As shown, the tube body 1 includes a catheter head 11 for inserting into the bladder, and a double-layer tube 12 fixedly connected to the catheter head 11. A balloon 13 is fixedly connected to the double-layer tube 12 near the catheter head 11. Specifically, the catheter head 11 is a cone with a cross-sectional width that gradually decreases in the direction away from the double-layer tube 12, which facilitates the insertion of the catheter head 11 into the bladder and reduces pain. The balloon 13 is used to fix the tube body 1 in a fixed position inside the bladder.

[0032] Furthermore, the double-layer tube 12 includes an outer tube 122 and an inner tube 121. The outer tube 122 is supported by several connecting pieces arranged in a circumferential array on the outside of the inner tube 121, forming a certain distance between the outer tube 122 and the inner tube 121. A through cavity 123 for fixing the connecting wire 22 and a through cavity 124 for communicating with the balloon 13 are formed between adjacent connecting pieces. An air pump tube 131 communicating with the through cavity 124 is integrally formed on a section of the outer tube 122 away from the balloon 13. An air valve 132 for sealing the air pump tube 131 is integrally formed inside the air pump tube 131. The air pump tube 131 is located at the air valve 132. An air pump ball 133 is provided on the side away from the balloon 13. The end of the air pump ball 133 away from the air valve 132 has a vent hole 1331. Specifically, the air valve 132 has a cross-shaped cut in the middle. Under normal conditions, the cross-shaped cut is closed to seal the air pump tube 131. When the air pump ball 133 is pressed, the cross-shaped cut expands to form a passage connecting the external air and the inside of the balloon 13. When the air pump ball 133 is pressed, air can be introduced into the balloon 13 through the air pump tube 131 and the second passage cavity 124. Both the air pump ball 133 and the air valve 132 have deformation properties due to the material properties.

[0033] Based on the above configuration, when the air pump tube 131 is pressed, air can be squeezed into the balloon 13 through the air pump tube 131 and the second passage 124, causing the balloon 13 to expand and press against the bladder opening, thereby fixing the position of the tube 1 and preventing the tube 1 from falling off. The air valve 132 prevents the gas in the balloon 13 from overflowing, and also ensures that a sufficiently strong air pressure is generated when the air pump ball 133 is squeezed. Under the action of air pressure, the air valve 132 deforms and expands the cross-shaped cut to open a passage for airflow into the balloon 13. The vent 1331 is used to ensure that external gas can flow into the air pump ball 133, ensuring the rationality of the structure.

[0034] Working principle: When operating this utility model, after inserting the catheter head 11 into the bladder, pressing the air pump bulb 133 creates a sufficiently strong airflow to open the air valve 132, filling the balloon 13 with gas and causing it to expand, thereby fixing the tube body 1 in a fixed position in the bladder. When the guided urine passes through the temperature sensor 21 installed inside the tube body 1, it generates an analog signal based on the thermoelectric effect. This signal is converted into a digital signal by the digital-to-analog converter 23111 of the temperature display device 23, and the specific temperature value is displayed on the screen of the temperature display device 23. At the same time, a comparator 23112 is also provided. The control module 232 controls the display color of the temperature according to the signal output by the comparator 23112, so that the temperature value is displayed more clearly to medical staff. This utility model, through the setting of the temperature measuring device 2, facilitates the transfer of patients and can determine whether the patient is in a healthy state during the transfer by the color of the displayed temperature value, making it more convenient and intelligent.

[0035] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A smart temperature-measuring urinary catheter, characterized in that: It includes a tube (1) used in conjunction with each other and a temperature measuring device (2); The temperature measuring device (2) includes: a temperature sensor (21) located inside the tube (1) near the liquid inlet, and a temperature display device (23) electrically connected to the temperature sensor (21) via a connecting wire (22); the temperature display device (23) is located outside the tube (1). The temperature display device (23) includes: a display module (231) and a control module (232); The display module (231) includes: a signal processing unit (2311) and a display unit (2312) connected to the signal processing unit (2311); the signal processing unit (2311) includes a digital-to-analog converter (23111) and a comparator (23112); the display unit (2312) displays the specific temperature according to the digital signal output by the signal processing unit (2311). The control module (232) includes: a circuit control unit (2321) for controlling the power output, and a color control unit (2322) for controlling the color display of the display unit (2312) according to the comparison logic of the comparator (23112).

2. The intelligent temperature measuring urinary catheter according to claim 1, characterized in that: The temperature display device (23) further includes a serial communication module (233).

3. The intelligent temperature measuring urinary catheter according to claim 2, characterized in that: The temperature display device (23) has an output interface on its side for connecting to the serial communication module (233). A conversion cable is detachably connected through the output interface. The conversion cable is used to transmit the data output by the serial communication module (233).

4. The intelligent temperature measuring urinary catheter according to claim 3, characterized in that: The temperature measuring device (2) also includes a power supply located inside the temperature display device (23), which is connected to the temperature display device (23) via a drive circuit.

5. The intelligent temperature measuring urinary catheter according to claim 1, characterized in that: The tube body (1) includes a catheter head (11) for inserting into the bladder, and a double tube (12) fixedly connected to the catheter head (11), with a balloon (13) fixedly connected to the double tube (12) near the catheter head (11).

6. The intelligent temperature measuring urinary catheter according to claim 5, characterized in that: The double-layer tube (12) includes an outer tube (122) and an inner tube (121). The outer tube (122) is supported by a number of connecting pieces on the outside of the inner tube (121) through a circumferential array and forms a certain distance between the inner tube (121). A through cavity one (123) for fixing the connecting wire (22) and a through cavity two (124) for connecting the balloon (13) are formed between adjacent connecting pieces.

7. The intelligent temperature measuring urinary catheter according to claim 6, characterized in that: The outer tube (122) is fixedly connected to an air pump tube (131) that communicates with the second passage (124) at one end away from the balloon (13). An air valve (132) is provided inside the air pump tube (131). An air pump ball (133) is provided on the side of the air pump tube (131) away from the balloon (13) from the air valve (132). An air vent (1331) is provided at one end of the air pump ball (133) away from the air valve (132). By pressing the air pump ball (133), air can be circulated to the balloon (13) through the air pump tube (131) and the passage.

8. The intelligent temperature measuring urinary catheter according to claim 7, characterized in that: The air valve (132) is integrally formed with the air pump tube (131). The air valve (132) has a cross-shaped cut in the middle. Under normal conditions, the cross-shaped cut is closed to seal the air pump tube (131). When the air pump ball (133) is pressed, the cross-shaped cut expands to form a passage connecting the external air and the inside of the balloon (13).

9. The intelligent temperature measuring urinary catheter according to claim 1, characterized in that: The tube body (1) is made of one of the following materials: polyurethane, silicone, latex, and polyvinyl chloride.

10. The intelligent temperature measuring urinary catheter according to claim 1, characterized in that: The diameter of the tube (1) is between 0.4cm and 0.6cm.

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