CN209032321U - Intelligent drainage tube using sensors to monitor various information - Google Patents

Abstract

The utility model discloses the intelligent drainage tubes using sensor monitoring much information for belonging to medical instruments field.It is described intelligence drainage tube include internal and external two parts or in which one of；In-vivo monitoring unit is installed in vivo, multiple conduction holes are arranged in tube wall on the drainage tube of part；Monitored in vitro unit and signal transmission unit are installed on the drainage tube of part in vitro；Wherein, the sensor in internal or external monitoring unit is arranged in the pipe outer wall of drainage tube or on inside pipe wall, and the sensor is combination one or more kinds of in optical sensor, resistance or impedance transducer or ultrasonic sensor or capacitance sensor；Wherein internal or external monitoring unit is connect with signal transmission unit respectively；The intelligence drainage tube has the function of that the logical or stifled of real-time monitoring drainage tube waits drainages state, for the drainage and monitoring at each position of human body, acquires patient's various aspects information；Accuracy, stability, the reliability etc. of drainage system monitoring can be improved in multisensor.

Description

Intelligent drainage tube using sensors to monitor various information

technical field

The utility model belongs to the field of medical equipment. In particular, it relates to an intelligent drainage tube that uses sensors to monitor various information.

Background technique

Drainage tube is the main tool for surgical drainage at present. Its main function is to guide pus, blood, and fluid accumulated between human tissues or body cavities to the outside of the body, so as to prevent postoperative infection and affect wound healing. The drainage tube has a wide range of applications, and can be used for the drainage of wounds and urine, as well as the drainage of the chest cavity, brain cavity, abdominal cavity and other parts.

Drainage is the most important function of the drainage tube, but there are two main problems in the current use of the drainage tube. The first is that it is impossible to monitor the drainage status of the drainage tube in real time. It is of great significance to understand the recovery of the patient, especially during the drainage process, the drainage tube is easily blocked by tissue fragments or coagulation in digestive juice, peritoneal fluid, pus, incision exudate, etc., resulting in poor drainage. In time, symptoms such as stagnant water and infection will appear in the drainage site, which may endanger the patient's life in severe cases, and it is impossible for nurses and family members to monitor the status of the drainage tube in real time. significant. The second is that the information obtained by the current drainage tube is limited, and the use of gyroscopes and accelerometers to obtain the patient's position, motion status and other information can be used to assist in judging the drainage status of the drainage tube. In addition, clinicians often need to measure the inter-organism during drainage. , body cavity or blood pressure, temperature and other parameters, according to the actual condition of the patient to take a more accurate and effective treatment plan.

At present, some patents have proposed some related monitoring methods, such as Chinese patent: CN201110162589.1 an intracranial pressure monitoring drainage tube, CN201610451591.3 a monitoring device, system and method for bladder pressure information, but the problems to be solved are limited. For example, the "Intracranial Pressure Monitoring Drainage Tube" proposed by Nanjing University of Aeronautics and Astronautics has the function of real-time monitoring of intracranial pressure and drainage. However, it has two problems. First, it does not have the function of monitoring the drainage status of the drainage tube. Therefore, once the blockage of the drainage tube is not detected in time, the increase of intracranial pressure will cause irreparable secondary damage to the patient; secondly, only pressure information can be obtained, but the temperature of the patient and the position of the patient cannot be obtained. angular velocity, acceleration and other information related to the state of motion, etc.; followed by the monitoring method proposed by the Suzhou Institute of Biomedical Engineering Technology, Chinese Academy of Sciences. The sensor can collect the pressure information in the bladder, and has a certain function of judging the drainage status of the drainage tube. However, the sensor used is single, and the information obtained is limited. When the pressure change is not obvious at the initial stage of the drainage tube blockage, and the drainage fluid in the drainage tube appears In complex situations such as liquid and gas mixing, it may not be possible to accurately judge the true drainage status of the drainage tube only by relying on pressure information; in addition, it is only applicable to bladder drainage and is not universally applicable. It can be seen from this that the original technology has the shortcomings of low degree of intelligence, inability to comprehensively and accurately judge the drainage status of the drainage tube, and limited access to information. Therefore, it is urgent to use multiple sensors to obtain various information and other methods to solve the above problems and further improve the intelligence of the drainage tube.

Utility model content

The purpose of this utility model is to solve the problem that the general drainage tube in the prior art cannot obtain information including the pressure, temperature, flow information of the drainage liquid, and the angular velocity, acceleration and other complex states related to the patient's body position, movement and other states. A kind of intelligent drainage tube for monitoring various information using sensors is proposed, wherein the drainage tube for monitoring various information includes two parts in vivo and in vitro or one of them, and the drainage tube 1 of the in vivo part is installed with a The in-vivo monitoring unit 3 is provided with a plurality of drainage holes 4 on the tube wall; an in-vitro monitoring unit 5 and a signal transmission unit 6 are installed in the in-vitro part; wherein the first sensing module 2 in the in-vitro monitoring unit 5 and the in-vivo monitoring unit 3 The second sensing module 12 is arranged on the outer wall of the drainage tube or on the inner wall of the tube, and the first sensing module 2 and the second sensing module 12 respectively include a light sensor 2.3, a resistance or impedance sensor 2.2, and a capacitance sensor 2.1 , one or more combinations of ultrasonic sensors, pressure sensors, temperature sensors, gyroscopes and accelerometers; the output of the external monitoring unit 5 or the internal monitoring unit 3 is transmitted to the signal transmission unit 6 by wired or wireless means; The in vivo monitoring unit is wrapped with a biocompatible protective coating.

The drainage tube includes an in vivo monitoring unit 3, an in vitro monitoring unit 5 and a signal transmission unit 6, wherein the second power supply and the power management module 15 of the in vivo monitoring unit 3 are respectively connected to the second signal transmission module 14, the second signal conversion and conditioning module 13 and the second sensing module 12; and the second sensing module 12, the second signal conversion and conditioning module 13 and the second signal transmission module 14 are connected in series; the second power supply and power management module 15 is connected with the signal transmission unit 6 The first power supply and the power management module 7 are connected; in the signal transmission unit 6, the first power supply and the power management module 7 are respectively connected to the third signal transmission module 11 and the microprocessor and the signal transmission module 10 are connected to the external monitoring unit 5 at the same time. The first sensing module 2 , the first signal conversion and conditioning module 9 , and the first signal transmission module 8 ; in the in vitro monitoring unit 5 , the first sensing module 2 , the first signal conversion and conditioning module 9 and the first signal transmission module The modules 8 are connected in series; the first signal transmission module 8 is connected with the third signal transmission module 11 in the signal transmission unit 6; the third signal transmission module 11 is connected with the microprocessor and the signal transmission module 10, the host computer 16, and the cloud data processing and collection unit 17 in series.

The beneficial effects of the present utility model are as follows:

1. It has the function of real-time monitoring of the drainage status of the drainage tube, which can reduce the workload of medical staff and reduce the risk of secondary injury to patients;

2. It has the function of monitoring various physiological parameters and activity status of patients at the same time, which is convenient for doctors to understand various information of patients in time, and the fusion of various information is conducive to taking reasonable treatment plans and implementing personalized medicine;

3. It has universal applicability and can be used for drainage and monitoring of various parts of the human body;

4. Multiple sensors can improve the accuracy, stability and reliability of the system.

Description of drawings

Figure 1 is a schematic diagram of the actual drainage tube.

Figure 2 is a block diagram of the composition of the monitoring system.

FIG. 3 is a schematic diagram of the structure of the ring sleeve for the placement of the in vitro monitoring sensor.

Figure 4 is a graph of the working condition of the real-time monitoring drainage tube, in which (a) the liquid flow rate is large, and the signal received by the sensor fluctuates with little change; (b) the liquid flow rate is small, the air and fluid interval appears, and the sensor receives (c) the drainage tube before the sensor is blocked, the liquid does not flow, the signal received by the sensor is basically unchanged; (d) the drainage tube after the sensor is blocked, the liquid does not flow, the sensor receives The received semaphore is basically unchanged.

Figure 5 is a schematic diagram of the installation of the capacitive sensor of the monitoring device, wherein a is on the inner wall of the drainage tube; b is on the outer wall of the drainage tube.

Figure 6 is a schematic diagram of the installation of the resistance or impedance sensor of the monitoring device, wherein a is on the inner wall of the drainage tube; b is on the outer wall of the drainage tube.

Detailed ways

The utility model proposes an intelligent drainage tube that uses sensors to monitor various information, which will be further described below with reference to the accompanying drawings.

Figure 1 shows a schematic diagram of the actual drainage tube. The drainage tube for monitoring various information includes two parts in vivo and in vitro. An in vivo monitoring unit 3 is installed at the end of the drainage tube 1 in the in vivo part, and a plurality of drainage holes 4 are arranged on the wall of the tube. The sensor module 12 includes a resistance or impedance sensor 2.2, a pressure sensor, a temperature sensor, etc., the information collected by the sensors is converted and conditioned by the second signal conversion and conditioning module 13, and then passed through the drainage tube wall, inside the tube wall or The wires in the tube wall are transmitted to the signal transmission unit 6, wherein the resistance or impedance sensor 2.2 is arranged on the inner wall of the drainage tube (as shown in Figure 6a, the installation schematic diagram of the resistance or impedance sensor), and the electrodes of the resistance or impedance sensor are arranged around the inner wall of the drainage tube. A light sensor 2.3 is set on the outer wall of the drainage tube 1 in the external part, and the light sensor 2.3 is fixed on the inner wall of the ring-sleeve structure, which is sleeved on the outer wall of the drainage tube 1 and can move freely (as shown in Figure 3 ). The ring-sleeve structure schematic diagram of the in vitro monitoring sensor placement); wherein the optical sensor 2.3 transmits the collected information to the signal transmission unit 6 through the first signal transmission module 8 after conditioning by the first signal conversion and conditioning module 9; resistance or impedance sensor 2.2 and light sensor 2.3 can collect information of various complex states such as liquid, droplet, liquid column, gas-liquid-solid mixing in the tube.

Figure 2 shows a block diagram of the intelligent part of the intelligent drainage tube. In the figure, the intelligent part includes an in-vivo monitoring unit 3, an in-vitro monitoring unit 5 and a signal transmission unit 6, wherein the second power supply and the power management module 15 of the in-vivo monitoring unit 3 are respectively connected to the second signal transmission module 14, the second signal conversion and The conditioning module 13 and the second sensing module 12; and the second sensing module 12, the second signal conversion and conditioning module 13 and the second signal transmission module 14 are connected in series; the second power supply and power management module 15 is connected with the signal transmission unit 6 The first power supply and the power management module 7 are connected; the second sensing module 12 in the in-vivo monitoring unit 3 includes an optical sensor, a capacitive sensor, a resistance or impedance sensor, an ultrasonic sensor, a pressure sensor, a temperature sensor, a gyroscope and The combination of one or more of the accelerometers can acquire various information such as the drainage status information of the drainage tube and the patient's physiological parameters and activity status in real time.

In the signal transmission unit 6, the first power supply and the power management module 7 are respectively connected to the third signal transmission module 11 and the microprocessor and the signal transmission module 10, and are simultaneously connected to the first sensing module 2 and the first signal of the in vitro monitoring unit 5. The conversion and conditioning module 9, the first signal transmission module 8, and the first sensing module 2, the first signal conversion and conditioning module 9, and the first signal transmission module 8 are connected in series; The third signal transmission module 11 is connected; the third signal transmission module 11 is connected in series with the microprocessor and the signal transmission module 10 , the upper computer 16 , and the cloud data processing and collection unit 17 .

The working principle of the above-mentioned intelligent drainage tube: the power supply and the power management module supply power to the unit circuit part. The first sensing module 2 of the in vitro monitoring unit 5 and the second sensing module 12 of the in vivo monitoring unit 3 will collect the pressure, temperature, flow information of the drainage fluid in real time and the angular velocity related to the patient's body position, movement and other states. , acceleration and other signals, and the signals are respectively conditioned by the first signal conversion and conditioning module 9 of the in vitro monitoring unit 5 and the second signal conversion and conditioning module 13 of the in vivo monitoring unit 3 and transmitted to the signal transmission unit 6. The third signal transmission module 11, the third signal transmission module 11 integrates the information and transmits it to the microprocessor and the transmission module 10; the microprocessor and the transmission module 10 analyze and process the collected signals, and transmit the above signals to The upper computer 16, the upper computer 16 displays and processes the collected signals, at this time the upper computer can display the curve change diagram of the patient's physiological parameters and activity state, as well as the drainage tube drainage state curve change diagram (as shown in Figure 4); The computer 16 transmits the processed signal to the cloud data collection and processing unit 17 , and the doctor can know the patient's physical state and the working condition of the drainage tube in real time through the cloud data collection and processing unit 17 , and feed it back to the upper computer 16 .

Figure 4 is a graph showing the real-time monitoring of the working condition of the drainage tube. Use the optical sensor 2.3 to monitor the flow state of the drainage liquid in the drainage tube. When the light passes through the drainage tube wall and then reflects to the optical sensor 2.3, the light will be attenuated to a certain extent. Since the absorption of light by the drainage tube wall is basically unchanged, and the presence of blood, pus, tissue residue, etc. in the drainage fluid will cause changes in light absorption, these differences can be used to judge the drainage status of the drainage tube. The flow of the drainage liquid in the drainage tube is complex and changeable. As shown in Figure 4, when the light is converted into an electrical signal, the absorption of light by the drainage tube wall is basically unchanged due to the change in the absorption of light by the drainage liquid. , so the obtained signal can be divided into DC signal and AC signal. When the drainage tube drains smoothly, every time the drainage fluid flows through the optical sensor, an AC signal will be obtained, as shown in a and b in Figure 4: (a) The liquid flow rate is large, and the signal received by the sensor changes little. Fluctuating state; (b) The liquid flow rate is small, the interval between air and fluid occurs, and the signal received by the sensor changes abruptly; when the drainage tube is blocked, the obtained signal will be a DC signal for a long time, as shown in c, d in Figure 4 As shown in the figure, where (c) the drainage tube before the sensor is blocked, the liquid does not flow, and the signal received by the sensor is basically unchanged; (d) the drainage tube after the sensor is blocked, the liquid does not flow, and the signal received by the sensor The semaphore is basically unchanged. Therefore, by analyzing the changes of the extracted electrical signals, the drainage situation of the drainage tube can be judged; the above four states are only four of the actual drainage states of the drainage tube, not all of them, and other drainage states of the present invention It can also be monitored, which belongs to the protection scope of the present invention.

Figure 5 shows a schematic diagram of the installation of the capacitive sensor of the monitoring device, wherein a is on the inner wall of the drainage tube; b is on the outer wall of the drainage tube. Since the capacitive plates of the capacitive sensor 2.1 are installed on the inner and outer surfaces of the drainage tube 1; the change of the dielectric constant between the capacitive plates of the capacitive sensor 2.1 will cause the voltage value on both sides of the plates to change. , the dielectric constant between the capacitor plates changes, so that the voltage value changes; therefore, when the drainage tube is drained smoothly, whenever the drainage fluid flows through the capacitance sensor, an AC signal will be obtained (a, b in Figure 4). shown): when the drainage tube is blocked, the obtained signal will be a DC signal for a long time (as shown in c and d in Figure 4); thus, it can be judged by analyzing the change of the extracted electrical signal Drainage of the drainage tube.

Figure 6 is a schematic diagram of the installation of the resistance or impedance sensor of the monitoring device, wherein a is on the inner wall of the drainage tube; b is on the outer wall of the drainage tube. Paste the resistance or impedance sensor 2.2 on the inner and outer surfaces of the drainage tube 1; when there is drainage fluid in the drainage tube 1 flowing through the resistance or impedance sensor 2.2, it will cause a change in the resistance of the resistance or impedance sensor 2.2. The change in resistance is processed by the circuit , output in the form of an electrical signal, which is converted into a change of electrical signal; when the drainage tube is drained smoothly, whenever the drainage fluid flows through the resistance or impedance sensor, an AC signal will be obtained (as shown in a, b in Figure 4) ; When the drainage tube is blocked, the obtained signal will be a DC signal for a long time (as shown in c and d in Figure 4); thus, the drainage tube can be judged by analyzing the change of the extracted electrical signal of drainage.

Claims (2)

1. an intelligent drainage tube utilizing a sensor to monitor a variety of information, is characterized in that, the intelligent drainage tube for monitoring a variety of information includes two parts in vivo, in vitro or one of them, and the drainage tube (1) of the in vivo part is installed There is an in-vivo monitoring unit (3), and a plurality of drainage holes (4) are arranged on the tube wall; an in-vitro monitoring unit (5) and a signal transmission unit (6) are installed in the in-vitro part; A sensing module (2) and a second sensing module (12) in the in-vivo monitoring unit (3) are arranged on the outer wall or inner wall of the drainage tube, and the first sensing module (2) is connected to the second sensing module (12). The modules (12) respectively comprise a light sensor (2.3), a resistance or impedance sensor (2.2), a capacitance sensor (2.1), an ultrasonic sensor, a pressure sensor, a temperature sensor, a gyroscope and a combination of one or more of the accelerometers, wherein The output of the in vitro monitoring unit (5) or the in vivo monitoring unit (3) is transmitted to the signal transmission unit (6) by means of wired transmission or wireless transmission. 2. The intelligent drainage tube utilizing a sensor to monitor a variety of information according to claim 1, wherein the second power supply and the power management module (15) of the in-vivo monitoring unit (3) are respectively connected to the second signal transmission module (15). 14), a second signal conversion and conditioning module (13) and a second sensing module (12); and a second sensing module (12), a second signal conversion and conditioning module (13) and a second signal transmission module ( 14) series connection; the second power supply and power management module (15) are then connected to the first power supply and power management module (7) of the signal transmission unit (6); the first power supply and power management module (7) are arranged on the drain pipe (1) The wires inside the pipe wall, outside the pipe wall or in the pipe wall supply power to each module in the in-vivo monitoring unit (3); or supply power to each module in the in-vivo monitoring unit (3); in the signal transmission unit (6), The first power supply and the power management module (7) are respectively connected to the third signal transmission module (11) and the microprocessor and the signal transmission module (10) and are simultaneously connected to the first sensing module (2), a first signal conversion and conditioning module (9), a first signal transmission module (8); in the in vitro monitoring unit (5), a first sensing module (2), a first signal conversion and conditioning module (9) and a first A signal transmission module (8) is connected in series; the first signal transmission module (8) is connected with the third signal transmission module (11) in the signal transmission unit (6); the third signal transmission module (11) is connected with the microprocessor and the signal The transmission module (10) is connected; the microprocessor and the signal transmission module (10) are connected in series with the host computer (16) and the cloud data processing and collection unit (17), or only with the host computer (16), cloud data processing and collection One of the units (17) is connected.