A body temperature monitoring device for cardiac surgery care

Abstract

The utility model relates to medical instrument technical field especially, and it is a kind of body temperature monitoring device for cardiac surgery nursing;Including indwelling catheter, temperature sensor, pressure sensor;The inner wall of indwelling catheter is also provided with embedded pipe, signal line I of temperature sensor is connected by embedded pipe temperature display module located in the outside of indwelling catheter, signal line II of pressure sensor is connected by embedded pipe pressure signal receiver located in the outside of indwelling catheter.The utility model inserts indwelling catheter into bladder along urethra, wherein the temperature in bladder can be detected by temperature sensor, so that the core temperature of patient can be obtained, and the detection purpose of non-invasive, comfortable and continuous monitoring can be achieved;In addition, the pressure sensor is also used to detect whether the urine in bladder of patient is excessive, and the urination is detected and adjusted according to the requirement, to ensure the comfort of patient, and also to avoid the influence of emptying bladder urine on the detection accuracy of temperature sensor.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a body temperature monitoring device for cardiac surgery nursing. Background Technology

[0002] Temperature monitoring devices in cardiac surgery nursing are specialized medical devices used for real-time, continuous monitoring of patients' body temperature. Especially after cardiac surgery, temperature management is crucial for preventing complications such as hypothermia, infection, and circulatory disorders. One type uses a bladder temperature probe, which measures urine temperature via a temperature sensor at the end of a catheter, approximating core body temperature. This allows for long-term, non-invasive monitoring, especially for patients with postoperative indwelling catheters.

[0003] However, the applicable conditions for bladder temperature probes are twofold. On the one hand, sufficient urine volume must be maintained: the patient's urine output must be >30 ml per hour (measurements are inaccurate when there is oliguria or anuria); on the other hand, the catheter must be kept patent: avoid blood clots or sediment from obstructing the sensor. Existing bladder temperature probes are not convenient to overcome the above problems in use. Utility Model Content

[0004] The purpose of this invention is to provide a body temperature monitoring device for cardiac surgery nursing, which solves the problems of bladder temperature probes being inconvenient to maintain bladder urine volume and sensors in catheters being easily interfered with in conventional body temperature monitoring devices for cardiac surgery nursing.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This utility model provides a body temperature monitoring device for cardiac surgery nursing, including an indwelling urinary catheter, at least one temperature sensor and at least one pressure sensor disposed at the end of the indwelling urinary catheter;

[0007] A balloon is disposed at the end of the indwelling catheter and below the temperature sensor and pressure sensor;

[0008] The indwelling urinary catheter is a three-lumen urinary catheter;

[0009] At the other end of the indwelling catheter, there is a balloon inflation connector for supplying air to the balloon, and a flushing connector for backwashing the catheter channel inside the indwelling catheter.

[0010] An embedded tube is also provided on the inner wall of the indwelling catheter. The signal line I of the temperature sensor is connected to a temperature display module located outside the indwelling catheter through the embedded tube. The signal line II of the pressure sensor is connected to a pressure signal receiver located outside the indwelling catheter through the embedded tube. The pressure signal receiver is electrically connected to an alarm.

[0011] In this embodiment, a urination connector that connects to the urination channel of the indwelling urinary catheter is further provided at the end of the indwelling urinary catheter.

[0012] Furthermore in this embodiment, the urination connector is connected to the urine storage bag via a guide tube; a liquid-stopping mechanism is provided on the guide tube.

[0013] Furthermore in this embodiment, the liquid-stopping mechanism is a liquid-stopping clamp or a miniature solenoid valve.

[0014] Furthermore in this embodiment, the flushing connector is connected to a flushing water source via a flushing pipe, and a peristaltic pump, which is a micro peristaltic pump, is installed on the flushing pipe.

[0015] Furthermore in this embodiment, the temperature sensor is a miniature NTC or a thermistor element, and is fixed to the inner wall of the end of the indwelling catheter.

[0016] Furthermore, in this embodiment, the pressure sensor is a medical fiber optic pressure sensor.

[0017] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0018] In this invention, an indwelling catheter is inserted into the bladder along the urethra. The temperature sensor can be used to detect the temperature inside the bladder, thereby obtaining the patient's core temperature. This achieves the purpose of non-invasive, comfortable, and continuous monitoring. In addition, the pressure sensor can be used to detect whether there is excessive urine in the patient's bladder. Urination can be detected and regulated as needed to ensure the patient's comfort, while also avoiding the impact of emptying the bladder on the accuracy of the temperature sensor. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the main body of the body temperature monitoring device for cardiac surgery nursing of this utility model;

[0021] Figure 2 This is an enlarged schematic diagram of the body temperature monitoring device for cardiac surgery nursing according to this utility model;

[0022] Figure 3 A schematic diagram of a three-lumen urinary catheter for indwelling catheterization.

[0023] Explanation of reference numerals in the attached diagram: 1. Indwelling urinary catheter; 11. Balloon; 12. Balloon inflation connector; 13. Flushing connector; 14. Urinating connector; 1a. Inflation channel; 1b. Urinary catheter channel; 1c. Flushing channel; 2. Temperature sensor; 21. Signal line I; 22. Temperature display module; 3. Pressure sensor; 31. Signal line II; 32. Pressure signal receiver; 33. Alarm; 4. Liquid retention mechanism; 5. Urine storage bag; 51. Drainage tube; 6. Peristaltic pump; 61. Flushing tube. Detailed Implementation

[0024] refer to Figure 1 and Figure 2 This embodiment discloses a body temperature monitoring device for cardiac surgery nursing, including an indwelling urinary catheter 1, two temperature sensors 2 and two pressure sensors 3 symmetrically installed at the end of the indwelling urinary catheter 1.

[0025] In practical use, the indwelling catheter 1 is inserted into the bladder along the urethra. The temperature sensor 2 can be used to detect the temperature inside the bladder, thereby obtaining the patient's core temperature. In addition, the pressure sensor 3 is used to detect whether the patient's bladder has excessive urine, and to detect and regulate urination as needed.

[0026] A balloon 11 is installed at the end of the indwelling catheter 1 and below the temperature sensor 2 and pressure sensor 3. The balloon 11 is used to position the indwelling catheter 1 and prevent it from slipping out of the urethra.

[0027] refer to Figure 3 The indwelling urinary catheter 1 is a three-lumen urinary catheter, specifically including an inflation channel 1a, a urinary catheter channel 1b, and a flushing channel 1c; wherein the inflation channel 1a is fitted to the inner wall of the urinary catheter channel 1b and communicates with the balloon 11, and the flushing channel 1c is fitted to the inner wall of the urinary catheter channel 1b and leads out near the end of the urinary catheter channel 1b, so as to facilitate flushing of the urinary catheter channel 1b.

[0028] At the other end of the indwelling catheter 1, there is a balloon inflation connector 12 for supplying air to the balloon 11. The balloon inflation connector 12 is sealed and connected to the inside of the balloon 11 through an inflation channel 1a, wherein the balloon 11 is inflated by inflation.

[0029] In this embodiment, a flushing connector 13 for backwashing the urinary channel 1b inside the indwelling catheter 1 is also installed at the end of the indwelling catheter 1. The flushing connector 13 is connected to the flushing water source through the flushing pipe 61. A peristaltic pump 6 is installed on the flushing pipe 61. The peristaltic pump 6 is a miniature peristaltic pump. The peristaltic pump 6 provides appropriate pressure to the flushing pipe 61 and performs directional flushing of the port of the indwelling catheter 1 through the upper port of the flushing channel 1c to prevent blood clots or deposits from obstructing the temperature sensor 2 and the pressure sensor 3.

[0030] In this embodiment, a urination connector 14 is also installed at the end of the indwelling urinary catheter 1 to connect the urination channel of the indwelling urinary catheter 1; wherein the urination connector 14 is connected to the urine storage bag 5 through the guide tube 51; a liquid-stopping mechanism 4 is installed on the guide tube 51; the liquid-stopping mechanism 4 is a liquid-stopping clamp or a miniature solenoid valve.

[0031] In use, the stop-fluid mechanism 4 on the drainage tube 51 is normally closed. When the pressure sensor 3 detects excessive urine in the patient's bladder, resulting in high pressure, the detection value of the pressure sensor 3 is triggered to exceed the threshold (the threshold range for adults is 10–15 cmH2O). The controller can adjust the stop-fluid mechanism 4 to open the drainage tube 51, thereby draining a portion of the urine from the patient's body. At the same time, the minimum amount of urine in the bladder is controlled according to the detection value of the pressure sensor 3 to adjust the stop-fluid mechanism 4 to close, so that the urine content is maintained at a level that allows the temperature sensor 2 to accurately detect the core body temperature.

[0032] In this embodiment, a pre-embedded tube is also installed on the inner wall of the indwelling catheter 1. The signal line I 21 of the temperature sensor 2 is connected to the temperature display module 22 located outside the indwelling catheter 1 through the pre-embedded tube. The signal line II 31 of the pressure sensor 3 is connected to the pressure signal receiver 32 located outside the indwelling catheter 1 through the pre-embedded tube. The pressure signal receiver 32 is electrically connected to an alarm 33. As another embodiment, the fluid-stopping mechanism 4 is a medical fluid-stopping forceps, wherein the detection value of the pressure sensor 3 is used to control whether the amount of urine in the bladder exceeds the set urine trigger pressure threshold range, thereby reminding medical staff to periodically urinate the patient by controlling the alarm.

[0033] In this embodiment, the temperature sensor 2 can be a miniature NTC or a thermistor element and is fixed to the inner wall of the end of the indwelling catheter 1; the pressure sensor 3 can be a medical fiber optic pressure sensor; the pressure sensor 3 can be replaced with a flexible thin film pressure sensor.

[0034] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A body temperature monitoring device for cardiac surgery nursing, characterized in that: Includes an indwelling urinary catheter, at least one temperature sensor disposed at the end of the indwelling urinary catheter, and at least one pressure sensor; A balloon is disposed at the end of the indwelling catheter and below the temperature sensor and pressure sensor; The indwelling urinary catheter is a three-lumen urinary catheter; At the other end of the indwelling catheter, there is a balloon inflation connector for supplying air to the balloon, and a flushing connector for backwashing the catheter channel inside the indwelling catheter. An embedded tube is also provided on the inner wall of the indwelling catheter. The signal line I of the temperature sensor is connected to a temperature display module located outside the indwelling catheter through the embedded tube. The signal line II of the pressure sensor is connected to a pressure signal receiver located outside the indwelling catheter through the embedded tube. The pressure signal receiver is electrically connected to an alarm.

2. The body temperature monitoring device for cardiac surgery nursing according to claim 1, characterized in that: The end of the indwelling catheter is also provided with a urination connector that connects to the urination channel of the indwelling catheter.

3. The body temperature monitoring device for cardiac surgery nursing according to claim 2, characterized in that: The urination connector is connected to the urine storage bag via a guide tube; a liquid-stopping mechanism is provided on the guide tube.

4. The body temperature monitoring device for cardiac surgery nursing according to claim 3, characterized in that: The liquid-stopping mechanism is either a liquid-stopping clamp or a miniature solenoid valve.

5. The body temperature monitoring device for cardiac surgery nursing according to claim 1, characterized in that: The flushing connector is connected to the flushing water source through a flushing pipe, and a peristaltic pump is installed on the flushing pipe. The peristaltic pump is a miniature peristaltic pump.

6. The body temperature monitoring device for cardiac surgery nursing according to claim 1, characterized in that: The temperature sensor is a miniature NTC or thermistor element and is fixed to the inner wall of the end of the indwelling catheter.

7. The body temperature monitoring device for cardiac surgery nursing according to claim 1, characterized in that: The pressure sensor is a medical fiber optic pressure sensor.

Images