TWI592182B - Medical injection volume detection device - Google Patents

Description

Medical injection volume detecting device

The invention relates to a liquid amount detecting device, in particular to a medical injection liquid amount detecting device.

Intravenous therapy is commonly used in the medical behavior of the doctor and the nursing staff to inject the medical fluid directly into the patient's vein. The medical fluid can be blood, moisture, electrolytes, nutrients or drugs. In the case of first aid, it can also be used as a means of immediate administration.

Continuous intravenous injection, also known as intravenous drip, can provide a large amount of medical fluid to the patient, but it also requires a longer injection time. Intravenous drip is to hang a liquid bag (bottle) containing a medical liquid on a drip stand, and deliver the medical fluid to the patient through a catheter and an indwelling needle inserted in the patient's vein. The time of intravenous drip depends on the amount of medical fluid and, in general, takes hours. In the process of intravenous drip, it is necessary to pay special attention to whether the medical fluid is stopped or has been used, otherwise blood reverse flow or even air injection will occur. Therefore, in the case of traditional intravenous drip, in order to avoid the above-mentioned situation, the nursing staff or family members need to wait and monitor for a long time, so that the nursing staff or family members are subjected to considerable psychological pressure and work burden, and lack of human efficiency.

In recent years, in order to effectively alleviate the shortage of medical personnel, many medical monitoring systems have been developed, including intravenous infusions to assist nursing staff and their families. There is no need to continuously monitor the supply of the medical fluid during the intravenous drip. For example, the new patent No. M467467 of the Republic of China discloses a drip dose warning device comprising a warning module, a setting interface, a measuring module and a control module. The setting interface is configured to provide a total dose value; the measuring module is configured to measure the weight of the drip bottle to generate a raw voltage value; the control module is electrically connected to the warning module, the setting interface And the measuring module is configured to read the total dose value and the original voltage value, and perform an alarm through the warning module. Wherein, the measuring module is an electronic scale, which is affected by gravity to cause a change in impedance and thereby change a voltage value. In addition, another technique for using an electronic scale can be found in the new patent No. 351181 of the Republic of China, which discloses a liquid electronic alarm device for medical drip, which also generates a corresponding signal according to the weight change of the drip container and notifies the nursing or nursing staff to treat the vein. Drip possible problems.

In addition to the aforementioned use of electronic scale technology to monitor the intravenous drip process, mechanical detection technology can provide more accurate monitoring, such as the new patent No. M490878 of the Republic of China, revealing a drip monitoring control device, including a weight detector and a controller . The weight detector is for holding a drop bag, and has a casing. The casing is provided with a bar body, a spring, a cursor portion and a marking portion. The rod body has a horizontal rod, and one end of the horizontal rod is provided with a contact portion, and a point in the horizontal rod extends to form a longitudinal rod, and one end of the longitudinal rod extends to form a clamping portion. The spring is sleeved on the longitudinal rod. The indicator portion is disposed on two sides of the housing, and the cursor portion is provided with an inductor, wherein the cursor portion is selectively displaced and positioned above or below the indicator portion. When the drip bag is lightened, the horizontal rod is propped up by the spring, and when the contact portion is displaced upward to oppose the sensor of the vernier portion, the sensor emits a signal to control the drip flow or notify the medical staff.

In addition, the traditional drip monitoring device using the electronic scale technology has insufficient accuracy, and it is difficult to detect a small amount of medical liquid weight change, especially for a vein that requires precise administration. Instillation of treatment behavior still does not alleviate the workload of medical staff. In addition, the aforementioned mechanical drip monitoring device can provide more accurate monitoring results, but the complicated structure and high failure rate will undoubtedly increase the medical cost and risk.

The main object of the present invention is to solve the problem that the manual dredging treatment requires long-time manual monitoring by the caregiver and the fact that the conventional drip detecting device cannot accurately detect the change of the medical liquid amount and the high cost.

To achieve the above object, the present invention provides a medical injection volume detecting device comprising a distance sensor and a weight reaction unit. The distance sensor includes a transmitting unit that outputs a transmitting energy and a receiving unit that receives a reflected energy and correspondingly generates a distance detecting signal. The weight reaction unit includes a connector that engages a medical injection container and moves relative to the distance sensor according to the weight of the medical injection container, and a reflection plane that interlocks the connection, the reflection plane transmits the energy The reflection is the reflected energy to the receiving unit to generate the distance detecting signal corresponding to the change in the weight of the medical injection container.

In one embodiment of the present invention, the medical injection volume detecting device further includes a monitoring unit that is connected to the distance sensor to receive the distance detecting signal, and the monitoring unit is an alarm device, a light emitting unit, a vibration unit, Display, terminal or mobile communication device.

In one embodiment of the present invention, the medical injection volume detecting device further includes a transmission module that connects the monitoring unit and the distance sensor to transmit the distance detecting signal, and the transmission module is a wired transmission module. Or wireless transmission module. The wireless transmission module is a Bluetooth module, a Wi-Fi transmission module, a ZigBee module, a universal packet wireless service technology module or a wireless RF communication module.

In an embodiment of the invention, the distance sensor is an infrared range finder, a laser range finder or an ultrasonic range finder.

In an embodiment of the invention, the medical injection quantity detecting device further comprises a housing that accommodates the distance sensor and the weight reaction unit.

In an embodiment of the invention, the weight reaction unit comprises an elastic member, the two ends of the elastic member being respectively fixed to the housing and the reflecting plane.

In an embodiment of the invention, the housing includes a hanging member.

In an embodiment of the invention, the distance sensor includes a control unit that generates the distance detection signal according to the reflected energy.

In one embodiment of the invention, the medical injection container delivers the medical injection through a catheter to an indwelling needle.

The medical injection liquid quantity detecting device of the invention can assist the medical staff and the family to monitor the supply process of the medical liquid, and avoid the unnecessary psychological pressure and work burden of the medical staff and the family members. Medical staff can also understand the drug delivery status of intravenous drip in each patient through effective management of distance detection signals, and make work flow planning to improve medical work efficiency. In contrast, the present invention can accurately monitor medical fluid changes, provide stable and reliable monitoring data, and has a simple overall structure and relatively low production cost, which is useful for widespread use. Compared with the conventional drip detection device or the drip detection system, the present invention can accurately monitor medical fluid changes and provide stable and reliable monitoring data. In the medical industry.

10‧‧‧Medical injection volume detection device

11‧‧‧ Distance sensor

111‧‧‧Emission unit

112‧‧‧ receiving unit

113‧‧‧Control unit

12‧‧‧ Weight reaction unit

121‧‧‧Connecting parts

122‧‧‧reflection plane

13‧‧‧Shell

131‧‧‧ hanging parts

14‧‧‧Flexible components

15‧‧‧Monitoring unit

161‧‧‧transmitter

162‧‧‧ receiving end

20‧‧‧Medical injection container

30‧‧‧Drip rack

41‧‧‧ catheter

42‧‧‧Indwelling needle

E1‧‧‧ emit energy

E2‧‧‧reflected energy

S1‧‧‧ distance detection signal

R1, R2‧‧‧ length

Fig. 1 is a schematic view showing the configuration of a device for detecting a medical injection amount according to an embodiment of the present invention.

2 is a schematic diagram of signal transmission of an embodiment of the medical injection volume detecting device of the present invention.

3-1 and 3-2 are schematic diagrams showing the structure of an embodiment of the medical injection fluid amount detecting device of the present invention.

The detailed description and technical contents of the present invention will now be described as follows:

Please refer to FIG. 1 , which is a schematic diagram of a device configuration of an embodiment of the medical injection fluid detecting device of the present invention. As shown in the figure, the present invention is a medical injection fluid detecting device 10 , which can generally be matched with a medical injection solution. The container 20 is used and hung on a drop holder 30. The medical injection container 20 can store different medical injections such as blood, moisture, electrolytes, nutrients or drugs as needed. The medical injection container 20 outputs the medical injection through a catheter 41 to an indwelling needle 42 for intravenous drip.

Please refer to FIG. 1 , FIG. 2 and FIG. 3-1 , which are schematic diagrams of signal transmission and structure actuation of an embodiment of the medical injection fluid amount detecting device of the present invention, as shown in the figure: the medical injection solution The volume detecting device 10 includes a housing 13 and a distance sensor 11 and a weight reaction unit 12 mounted in the housing 13. The housing 13 includes a hanging member 131 that is suspended from the drip stand 30. The distance sensor 11 includes a transmitting unit 111 that outputs a transmitting energy E1 and a receiving unit 112 that receives a reflected energy E2. In the present invention, the receiving unit 112 may directly generate a distance detecting signal S1 corresponding to the reflected energy E2, or the distance sensor 11 may be electrically connected to the receiving unit 112 and receive the reflected energy E2. The distance detecting signal S1 is controlled by the control unit 113. The weight reaction unit 12 includes a connector 121 that engages the medical injection container 20 and moves relative to the distance sensor 11 according to the weight of the medical injection container 20, and a reflection plane 122 that interlocks the connector 121. The reflection plane 122 reflects the emission energy E1 The receiving unit 112 is given the reflected energy E2 to generate the distance detecting signal S1 corresponding to the weight of the medical injection container 20. In order to enable the reflection plane 122 of the weight reaction unit 12 to move relative to the distance sensor 11, in the embodiment, the weight reaction unit 12 includes an elastic member 14 which is exemplified by a spring. Both ends of the element 14 are respectively fixed to the housing 13 and the reflecting plane 122. The distance sensor 11 can select an infrared range finder, a laser range finder or an ultrasonic range finder according to the needs of the developer, that is, the emitted energy E1 and the reflected energy E2 can be infrared, laser or super Sound wave.

In order to enable the medical staff or the caregiver to monitor or manage the condition of the medical injection in the medical injection container 20, the medical injection quantity detecting device 10 of the present invention further includes a signal connected to the distance sensor 11 to receive the condition. The monitoring unit 15 of the distance detecting signal S1. The monitoring unit 15 can be an alarm, a lighting unit, a vibration unit, a display, a terminal or a mobile communication device. Furthermore, the medical injection volume detecting device 10 of the present invention further includes a transmission module that connects the monitoring unit 15 and the distance sensor 11 to transmit the distance detecting signal S1. The transmission module can be selected according to requirements. Wired transmission module or wireless transmission module. In this embodiment, the distance detecting signal S1 is transmitted, for example, by using a wireless transmission module. The transmission module can be divided into a transmitting end 161 disposed in the casing 13 and a receiving end 162 disposed in the monitoring unit 15. . The wireless transmission module can be a Bluetooth module, a Wi-Fi transmission module, a ZigBee module, a universal packet wireless service technology module or a wireless RF communication module.

Please refer to FIG. 3-1 and FIG. 3-2, which are schematic diagrams showing the structure of an embodiment of the medical injection volume detecting device of the present invention. "Fig. 3-1" is a state in which an intravenous drip is initially performed, and the medical injection container 20 (shown in Fig. 1) is filled with a medical injection solution and is attached to the connecting member 121. The length of the transmitting unit 111 and the receiving unit 112 from the reflecting plane 122 is R1. along with The medical injection is gradually outputted, and as shown in Fig. 3-2, since the weight of the medical injection in the medical injection container 20 (shown in Fig. 1) is reduced, the contractile force of the elastic member 14 reacts the weight. The unit 12 is pulled upward to change the length of the transmitting unit 111 and the receiving unit 112 from the reflecting plane 122 to R2, that is, the reflecting plane 122 is displaced by R1 - R2. In the present invention, the distance sensor 11 generates a distance detecting signal S1 according to the transmitting energy E1 output by the transmitting unit 111 and the reflected energy E2 received by the receiving unit 112 (as shown in FIG. 2). If the relationship between the tensile length and the load-bearing weight of the elastic member 14 is established in advance, when the displacement amount of the reflection plane 122 is calculated, the weight change of the medical injection solution can be known, and then the monitoring unit 15 can be known. Or manage the supply of the medical injection.

The medical injection quantity detecting device of the invention effectively monitors the supply condition of the medical injection liquid through the high-accuracy distance sensor, and greatly reduces the workload and psychological pressure of the medical staff. Furthermore, the medical injection volume detecting device of the present invention has a simple structure, and can realize the weight change of the medical injection liquid without using a complicated mechanical structure, save product development cost, and reduce the chance of device failure occurring.

11‧‧‧ Distance sensor

111‧‧‧Emission unit

112‧‧‧ receiving unit

113‧‧‧Control unit

12‧‧‧ Weight reaction unit

121‧‧‧Connecting parts

122‧‧‧reflection plane

13‧‧‧Shell

131‧‧‧ hanging parts

14‧‧‧Flexible components

161‧‧‧transmitter

R1‧‧‧ length

Claims (10)

A medical injection quantity detecting device comprises: a distance sensor comprising: a transmitting unit for outputting a transmitting energy; and a receiving unit for receiving a reflected energy and correspondingly generating a distance detecting signal; and a weight reaction unit a connector for engaging a medical injection container and moving relative to the distance sensor according to a weight change of the medical injection container, and a reflection plane that interlocks the connection member, the reflection plane reflecting the emission energy into the The reflected energy is supplied to the receiving unit to generate the distance detecting signal corresponding to the change in the weight of the medical injection container. The medical injection quantity detecting device according to claim 1, further comprising a monitoring unit that is connected to the distance sensor to receive the distance detecting signal, wherein the monitoring unit is an alarm, an illumination unit, a vibration unit, and a display. , terminal or mobile communication device. The medical injection quantity detecting device according to claim 2, further comprising a transmission module connecting the monitoring unit and the distance sensor to transmit the distance detecting signal, wherein the transmission module is a wired transmission module or Wireless transmission module. The medical injection quantity detecting device according to claim 3, wherein the wireless transmission module is a Bluetooth module, a Wi-Fi transmission module, a ZigBee module, a universal packet wireless service technology module, or a radio frequency communication. Module. The medical injection quantity detecting device according to claim 1, wherein the distance sensor is an infrared range finder, a laser range finder or an ultrasonic range finder. The medical injection quantity detecting device according to claim 1, further comprising a housing that accommodates the distance sensor and the weight reaction unit. The medical injection volume detecting device according to claim 6, wherein the weight reaction unit comprises an elastic member, and the elastic member is respectively fixed to the housing and the reflecting plane. The medical injection volume detecting device of claim 6, wherein the housing comprises a hanging member. The medical injection volume detecting device of claim 1, wherein the distance sensor comprises a control unit corresponding to the reflected energy to generate the distance detecting signal. The medical injection volume detecting device according to claim 1, wherein the medical injection container outputs the medical injection through a catheter to an indwelling needle.