Disclosure of Invention
The invention aims to provide an infusion speed detector capable of automatically detecting the drop speed in the infusion process, and medical staff can quickly acquire the infusion speed of each patient in the infusion process in the inspection process.
In order to achieve the above purpose, the invention discloses an infusion speed detector, which comprises a detection device, a processing device and a portable terminal, wherein the detection device comprises a first photoelectric sensor for detecting the dropping speed of liquid drops in a dropper on an infusion apparatus, the first photoelectric sensor is electrically connected with the processing device, the processing device is used for processing signals fed back by the first photoelectric sensor to obtain dropping speed data, the portable terminal is in communication connection with the processing device through an NFC system, and a display device is further arranged on the portable terminal and is used for displaying the dropping speed data.
Compared with the prior art, the infusion speed detector detects the infusion speed of the liquid drops in the dropper in real time through the first photoelectric sensor, and feeds the detected data back to the processing device, and because the portable terminal is in communication connection with the processing device through the NFC system, when medical staff needs to know the infusion speed of the current patient, the portable terminal is only required to be close to the processing device, the processing device immediately transmits the processed liquid drop speed data to the portable terminal, and the processed liquid drop speed data is displayed in the portable terminal through the display device so as to be recorded.
Preferably, the infusion device further comprises a fixing frame, wherein a cavity for accommodating the dropper is formed in the fixing frame, first opening parts for the infusion tube on the infusion device to pass through are formed in the upper end and the lower end of the cavity, a mounting groove communicated with the cavity is formed in the side wall of the fixing frame, and the mounting groove is used for fixedly mounting the first photoelectric sensor.
Preferably, the fixing frame is made of flexible materials, the diameter of the cavity is slightly smaller than that of the dropper, a second opening part communicated with the cavity is arranged on the fixing frame, and the second opening part penetrates through the first opening parts at the upper end and the lower end of the cavity.
Preferably, the processing device comprises a processor and a monostable trigger electrically connected with the processor, the first photoelectric sensor is electrically connected with the monostable trigger through a shaping circuit, and the shaping circuit is used for shaping an analog signal into a square wave signal and transmitting the square wave signal to the monostable trigger.
Preferably, a second photoelectric sensor for detecting ambient brightness is further disposed in the mounting groove near the first photoelectric sensor, the processing device further comprises a data mixer, an input end of the data mixer is electrically connected with the first photoelectric sensor and the second photoelectric sensor, an output end of the data mixer is electrically connected with the shaping circuit, and the data mixer is used for filtering the influence of ambient light on data signals received by the first photoelectric sensor.
Preferably, the infusion device further comprises a weighing device electrically connected with the processor, and a hook for hooking the infusion container is arranged on the weighing device.
Preferably, the system further comprises an alarm electrically connected with the processor.
Preferably, the WIFI module is electrically connected with the processor.
Detailed Description
In order to describe the technical content, the constructional features, the achieved objects and effects of the present invention in detail, the following description is made in connection with the embodiments and the accompanying drawings.
The embodiment discloses an infusion speed detector to detect the drop dropping speed in the infusion process and be convenient for medical personnel to acquire, as shown in fig. 1, the infusion speed detector in this embodiment includes detection device, processing apparatus 2 and portable terminal 3. The detection device comprises a first photoelectric sensor 10 for detecting the dropping speed of liquid drops in a dropper 4 on the infusion apparatus, and specifically, the first photoelectric sensor 10 is arranged on one side of the dropper 4 and comprises an infrared emitter and an infrared receiver, when the liquid drops in the dropper 4 drop, infrared light emitted by the infrared emitter is reflected by the liquid drops and then received by the infrared receiver. The first photoelectric sensor 10 is electrically connected with the processing device 2, the processing device 2 is used for processing signals fed back by the first photoelectric sensor 10 to obtain dripping speed data, the portable terminal 3 is in Communication connection with the processing device 2 through an NFC (NEAR FIELD Communication) system, and the portable terminal 3 is further provided with a display device 30, wherein the display device 30 is used for displaying the dripping speed data. In this embodiment, since the portable terminal 3 is in communication connection with the processing device 2 through the NFC system, when a medical staff is looking around, the portable terminal 3 is only required to be close to the processing device 2 (about 4 cm), the portable terminal 3 can realize point-to-point communication with the processing device 2, the processing device 2 transmits the processed dropping speed data to the portable terminal 3, and the portable terminal 3 displays the dropping speed data through the display device 30 after receiving the dropping speed data, so that the medical staff can record the dropping speed data. When the medical staff moves the portable terminal 3 away from the current processing device 2, the communication connection between the portable terminal 3 and the current processing device 2 is automatically disconnected, and when the portable terminal 3 approaches the processing device 2 of another patient again, the portable terminal 3 establishes communication connection with the current nearest processing device 2 again, and updates the display data of the display device 30 to display the dripping speed data output by the current nearest processing device 2. Therefore, by the infusion speed detector in the embodiment, medical staff can quickly and accurately know the drop speed of each patient in the current infusion process.
Specifically, as shown in fig. 2 and 3, in order to facilitate the installation of the first photoelectric sensor 10, the infusion speed detector in this embodiment further includes a fixing frame 8, a cavity 80 for accommodating the dropper 4 is provided on the fixing frame 8, first openings 81 for passing through the infusion tube on the infusion apparatus are provided at the upper and lower ends of the cavity 80, a mounting groove 82 communicating with the cavity 80 is provided on the side wall of the fixing frame 8, and the mounting groove 82 is used for fixedly mounting the first photoelectric sensor 10. When in use, after the connecting end of the infusion apparatus is inserted into the infusion container, the dropper 4 of the infusion apparatus is placed into the cavity 80 on the fixing frame 8, and the infusion tube communicated with the dropper 4 passes through the first opening 81 on the fixing frame 8. The first photosensor 10 detects the landing of the liquid droplet in the dropper 4 via the mounting groove 82. In this embodiment, through the setting of mount 8 that has above-mentioned structure, the convenience is to the fixed mounting of first photoelectric sensor 10, and in the course of the work, burette 4 is in fixed state moreover, can effectively avoid the interference that causes because of rocking.
Preferably, the fixing frame 8 is made of flexible material, the diameter of the cavity 80 is slightly smaller than that of the dropper 4, a second opening 83 communicated with the cavity 80 is arranged on the fixing frame 8, and the second opening 83 penetrates through the first openings 81 at the upper end and the lower end of the cavity 80. In this embodiment, since the fixing frame 8 is made of a flexible material, when in use, the first opening 81 can be opened by using the self-tension of the fixing frame 8, the dropper 4 enters the cavity 80 through the opened first opening 81, and then the first opening 81 is reset, at this time, the dropper 4 is clamped in the cavity 80 because the diameter of the cavity 80 is slightly smaller than the diameter of the dropper 4.
In another preferred embodiment of the infusion speed detector of the present invention, as shown in fig. 1, the processing device 2 includes a processor 20 and a monostable trigger 21 electrically connected to the processor 20, the first photoelectric sensor 10 is electrically connected to the monostable trigger 21 through a shaping circuit 22, the shaping circuit 22 is used for shaping an analog signal output by the first photoelectric sensor 10 into a square wave signal and transmitting the square wave signal to the monostable trigger 21, and the monostable trigger 21 is used for filtering interference of the clutter signal. In the present embodiment, when no droplet is dropped in the dropper 4, the shaping circuit 22 enters the conductive state, outputs a high level, and when a droplet is dropped in the dropper 4, the shaping circuit 22 enters the non-conductive state, outputs a low level. To avoid clutter signal interference, the square wave signal output by the shaping circuit 22 is output via the monostable flip-flop 21, so that the processor 20 obtains a stable square wave pulse signal. The specific circuit configuration of the shaping circuit 22 and the monostable flip-flop 21 is common knowledge of a person skilled in the art, and will not be described in detail herein.
Preferably, in order to avoid the influence of the ambient light on the feedback data of the first photoelectric sensor 10, referring to fig. 1 and 3, a second photoelectric sensor 11 for detecting the ambient brightness is further disposed near the first photoelectric sensor 10 in the mounting groove 82, the processing device 2 further includes a data mixer 23, an input end of the data mixer 23 is electrically connected to the first photoelectric sensor 10 and the second photoelectric sensor 11, an output end of the data mixer 23 is electrically connected to the shaping circuit 22, and the data mixer 23 is used for filtering the influence of the ambient light on the data signal received by the first photoelectric sensor 10. In the present embodiment, since the second photosensor 11 is only used to detect infrared light in the environment, only an infrared receiver may be included in the second photosensor 11. In operation, the first and second photosensors 10, 11 respectively transmit the received first and second data signals S1, S2 to the data mixer 23, and the data mixer 23 subtracts the second data signal from the first data signal to obtain a detected data signal S0 transmitted to the shaping circuit 22, s0=s1-S2, so as to eliminate interference of the first photosensor 10 caused by infrared rays in the environment.
Further, in order to facilitate the medical staff to know the remaining liquid volume in the infusion container, referring to fig. 1 and 4 in combination, the infusion speed detector in the present embodiment further includes a weighing device 5 electrically connected to the processor 20, and a hook 50 for hooking the infusion container is disposed on the weighing device 5. When transfusion is performed, the transfusion container is hooked on the hook 50, the weighing device 5 detects the weight of the transfusion container in real time, and the processor 20 converts the weight data detected by the weighing device 5 into capacity data to be transmitted to the portable terminal 3 and displays the capacity data. Preferably, the infusion speed detector in this embodiment further includes an alarm 6 electrically connected to the processor 20, and when the weighing device 5 detects that the remaining capacity in the infusion container is smaller than the set value, the alarm 6 is activated to remind the patient or the medical staff.
In addition, in order to be convenient for long-range receiving infusion in-process liquid droplet drip speed and the residual capacity in the infusion container, still can set up with processor 20 electric connection's WIFI module 7, can send nurse station monitored control system or medical personnel to the data after the processing of processor 20 through this WIFI module 7 through the network.
The foregoing description of the preferred embodiments of the present invention is not intended to limit the scope of the claims, which follow, as defined in the claims.