CN104800923A - Analgesia control device - Google Patents

Abstract

The invention discloses an analgesic control device, which comprises an analgesic infusion pump, a medicine adding device, a respiratory monitor and an infusion pipeline. At present, analgesic pumps are used to infuse analgesic drugs to alleviate the pain of cancer and postoperative patients. The serious side effects are respiratory depression and decreased blood oxygen saturation, but there is no control device for analgesia. In order to overcome the defects of the existing technology , the gist of the technical solution of the present invention is to set a uniform speed micro-infusion analgesic pump, which can effectively control pain, and set a respiratory monitor to dynamically display the breathing state. When the temperature drops, the photoelectric blood oxygen saturation sensor is connected with the receiving and processing circuit, alarm circuit, and transfer switch in the monitor, and is linked with the solenoid valve to realize the safety control of automatic alarm and automatic shutdown of infusion. Uses: the present invention is applicable to the clinical application of patients with cancer and postoperative pain.

Description

pain control device

technical field

The invention relates to an analgesic control device.

Background technique

Pain is one of the most common symptoms of cancer and postoperative patients, which seriously affects the quality of life of the patient. If it is not relieved, the patient will feel extremely uncomfortable, which may cause or aggravate the patient's anxiety, depression, fatigue, insomnia, loss of appetite The treatment of pain includes: etiological treatment, drug analgesic treatment and non-drug treatment. At present, the analgesic pump is an effective tool for pain control. It can maintain a stable concentration of analgesic drugs (mainly referring to opioids) in the blood plasma, and allow patients to press and administer the drugs themselves to enhance the analgesic effect. Pump infusion of analgesic drugs, its serious side effect is respiratory depression, the clinical manifestations are respiratory rate ≤ 8 breaths per minute, and decreased blood oxygen saturation, but the current analgesic pump does not have the function of monitoring the patient's respiratory rate and blood oxygen saturation Therefore, an analgesic control device that can monitor the respiratory rate and blood oxygen saturation is designed. When the respiratory rate is less than 8 breaths per minute and the blood oxygen saturation decreases, it can automatically alarm and the infusion will be automatically closed. To overcome the defects of the prior art and improve the analgesic effect and safety, it has important clinical significance.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art and is designed through the following technical solutions: the analgesic control device includes an analgesic infusion pump 1, a dosing device 2, a respiratory monitor 3, and an infusion line 4. The telescopic liquid bag 5 provided in the pump cylinder 24 on the analgesic infusion pump 1 is plastically integrated with the piston plate 19 and the inner side of the front plug plate 18 respectively, and a dead tube 16 is arranged in the center of the outer side of the front plug plate 18, and the front end of the blind tube 16 is The infusion tube joint 26 and the one-way valve liquid injection port 8 assembly holes are respectively arranged on the top, the end of the blind pipe 16 is connected with the outside of the telescopic liquid bag 5 and communicated, and the spring 6 is respectively installed on the outside of the piston plate 19 and the inside of the lug screw cover 7 Between the spring seat 25, the front plug plate 18 is plastically fixed with the inner hole of the pump cylinder 24, the piston plate 19 is slidably assembled with the inner hole of the pump cylinder 24, the blind pipe 16 is slidably assembled with the pump port hole D and is plastically closed, and the lifting lug Screw cover 7 is threadedly connected with pump cylinder 24M end assembly. The first and second liquid storage bags 11 and 12 are respectively installed in the liquid storage box 12 of the described dosing device 2, and the first pressing button 13 and the second pressing button 14 are respectively installed above the liquid storage bags 11 and 12, and an infusion tube 15 Connect with the liquid storage bag 11,12. The panel of described respiratory monitor 3 is provided with power indicator light 31, power switch 30, display screen 29, and DC power supply circuit, respiratory frequency display circuit, reception processing circuit, alarm circuit, control circuit are arranged in the respiratory monitor 3 and are connected with sensor The finger cuff blood oxygen saturation sensor cable 21 plugged into the interface 20 forms a respiratory system circuit to monitor the breathing state. The infusion tube 15 on the infusion line 4 is respectively provided with a first adjustable flow valve 22, a first electromagnetic valve 9, a precision filter 10, a second adjustable flow valve 35, a second electromagnetic valve 33, and an intravenous The infusion tube 17 is composed of the first adjustable flow valve 22 as the total flow control valve, the first solenoid valve 9 as the total flow control valve, the second adjustable flow valve 35 controls the adjustment of the split flow, and the second solenoid valve 33 is the split flow Flow control valve.

Compared with the prior art, the present invention has the following beneficial effects:

1. An analgesic infusion pump structure composed of a telescopic liquid bag and a spring is provided, which can effectively implement uniform and micro-infusion of analgesic liquid.

2. The throttle valve can be set to adjust the infusion rate of 2ml per hour.

3. Set the solenoid valve and the alarm to be linked through the switch to realize the safety guarantee that the infusion will be automatically shut down when the respiratory rate is ≤ 8 times/min and the blood oxygen saturation decreases.

4. The analgesic infusion pump can be used repeatedly, which is more economical than the one-time analgesic pump.

5. Reduce the intensity of nursing work and improve the effect of analgesic treatment.

Description of drawings

Fig. 1 is a schematic diagram of the system structure of the present invention

Fig. 2 is another injection molding diagram of pump cylinder 24 of analgesic infusion pump 1 in Fig. 1

Fig. 3 is an injection molding part diagram of the lug screw cap 7 of the analgesic pump 1 in Fig. 1

Fig. 4 is an injection molding part diagram of the telescopic liquid bag 5 in Fig. 1

In the figure: analgesic infusion pump 1, drug dosing device 2, respiratory monitor 3, infusion line 4, telescopic liquid bag 5, spring 6, lug screw cap 7, one-way valve liquid injection port 8, first Solenoid valve 9, precise filter 10, first liquid storage bag 11, second liquid storage bag 12, first pressing key 13, second pressing key 14, infusion tube 15, blind pipe 16, intravenous infusion tube 17, front Plug plate 18, piston plate 19, sensor interface 20, sensor cable 21, first adjustable throttle valve 22, finger cot 23, pump cylinder 24, spring seat 25, infusion tube connector 26, power cord 27, photoelectric blood oxygen Saturation sensor 28, display screen 29, power switch 30, power indicator light 31, air hole 32, second solenoid valve 33, tee 34, second adjustable throttle valve 35, control cable 36.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and examples, and the embodiments are shown in Fig. 1-Fig. 4 . The analgesic infusion pump 1 on the analgesic control device is composed of three kinds of injection molded parts, a pump cylinder 24 , a telescopic liquid bag 5 , and a lug cap 7 , and a spring 6 . In the dosing device 2, when the patient still feels pain after being infused with 2ml/h of analgesic drugs, the patient can press the first push button 13, the second push button 14 or press the first push button 13 at the same time according to the degree of pain And the second press key 14 to add analgesic medicine.

Operation: The analgesic infusion pump 1 of the present invention selects a high-quality standard spring 6, and the spring specification is determined through calculation and liquid filling strength test. The telescopic liquid bag 5 is in an overlapping state before being filled, and the spring 6 is in a free state. Use a syringe to align with the liquid injection port 8 of the one-way valve, and add analgesic liquid. until the first adjustable throttle valve 22 is adjusted, the first solenoid valve 9 is opened, and the second adjustable throttle valve 35 is finely adjusted to reach a flow rate of 2ml/h. The spring 6 rebounds, compresses the telescopic liquid bag 5, and peristaltically discharges liquid at a constant speed. Micro-infusion of analgesic liquid, when the respiratory rate ≤ 8 breaths per minute, respiratory depression, the solenoid valve automatically cut off the power and close the infusion to stop.

The invention is applicable to the clinical application of patients with cancer and postoperative pain.

Claims (2)

1. An analgesic control device, comprising an analgesic infusion pump (1), a dosing device (2), a respiratory monitor (3), an infusion line (4), and the analgesic infusion pump (1) ) on the pump cylinder (24) provided in the telescopic liquid bag (5) and the piston plate (19), the inner side of the front plug plate (18) are plastically integrated, and the center of the front plug plate (18) is provided with a blind tube (16) , the front end of the blind pipe (16) is respectively provided with an infusion tube joint (26) and a one-way valve liquid injection port (8) assembly hole, and the end of the dead pipe (16) is connected to the outside of the telescopic liquid bag (5) and communicated with each other, and the spring (6) Installed respectively between the spring seat (25) on the outside of the piston plate (19) and the inside of the lug screw cover (7), the front plug plate (18) is plastically fixed with the inner hole of the pump cylinder (24), and the piston plate (19) is slidably assembled with the inner hole of the pump cylinder (24), the blind pipe (16) is slidably assembled with the pump port hole D and closed by plastic, and the lug screw cover (7) is threadedly connected with the M end of the pump cylinder (24) for assembly, The first and second liquid storage bags (11), (12) are respectively installed in the liquid storage box (12) of the described dosing device (2), and the first press button is respectively installed above the liquid storage bags (11), (12) (13) and the second button (14), the infusion tube (15) is connected with the liquid storage bag (11), (12), and the power indicator light (31) is set on the panel of the respiratory monitor (3) , a power switch (30), a display screen (29), a direct current power supply circuit, a respiratory frequency display circuit, a receiving and processing circuit, an alarm circuit, a control circuit and an index plugged with the sensor interface (20) are arranged in the respiratory monitor (3). A set of sensor cables (21) forms a respiratory system circuit to monitor the respiratory state. The infusion tube (15) on the infusion line (4) is respectively provided with a first adjustable throttle valve (22), a first Electromagnetic valve (9), precision filter (10), second adjustable throttle valve (35), second electromagnetic valve (33), intravenous infusion tube (17), the first adjustable throttle valve (22) is The total flow regulating valve, the first solenoid valve (9) is a total flow control valve, the second adjustable flow valve (35) controls the adjustment of the diversion flow, and the second solenoid valve (33) is a diversion flow control valve. 2. The analgesic control device according to claim 1, characterized in that, the analgesic infusion pump (1) is respectively composed of a pump cylinder (24), a telescopic liquid sac (5), an ear screw cover (7 ) three kinds of injection molded parts and spring (6) are combined and assembled.