CN219461158U - Blood oxygen simulator capable of intermittent transfusion - Google Patents
Blood oxygen simulator capable of intermittent transfusion Download PDFInfo
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- CN219461158U CN219461158U CN202223247439.3U CN202223247439U CN219461158U CN 219461158 U CN219461158 U CN 219461158U CN 202223247439 U CN202223247439 U CN 202223247439U CN 219461158 U CN219461158 U CN 219461158U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
Abstract
The utility model relates to the technical field of intelligent medical treatment, in particular to a blood oxygen simulation device capable of intermittent transfusion; the driving signal generator comprises a power supply, a chip and an electrocardiosignal, wherein the power supply is connected with the e pole of a first triode, the b pole of the first triode is connected with the output end of a monostable trigger, the input end of the monostable trigger is connected with the electrocardiosignal, the c pole of the first triode is respectively connected with the first end of a first resistor, the fourth pin, the eighth pin and the e pole of a second triode, and the c pole of the second triode is respectively connected with the second end of the fourth resistor and the motor driving signal input end of a driving mechanism in the simulation device main body; the heart sensor is used for collecting the heart rate of a human body as signal input, the working frequency of the driving mechanism is controlled according to the heart rate, and the work of a heart valve of the human body is simulated through the cooperation of the first piston and the regulating disc, so that intermittent blood conveying is realized.
Description
Technical Field
The utility model relates to the technical field of intelligent medical treatment, in particular to a blood oxygen simulation device capable of intermittent transfusion.
Background
The Chinese patent discloses a simulation device (application number 202210056888.5) for testing a reflective oximeter, which comprises a heat preservation tank and a liquid conveying pipe, wherein a liquid storage tank is fixedly arranged in the heat preservation tank, a liquid inlet is formed in the bottom wall of the liquid storage tank, a liquid outlet is formed in the top wall of the liquid storage tank, one end of the liquid conveying pipe is communicated with the liquid inlet, the other end of the liquid conveying pipe is communicated with the liquid outlet, and a first piston is slidably arranged in the liquid storage tank; according to the utility model, only the detection end of the oximeter is attached to the infusion tube when the reflective oximeter is tested, the accuracy of the oximeter is detected by comparing the blood oxygen value detected by the oximeter with the actual blood oxygen value of the simulated blood, the work of a heart valve of a human body is simulated by the cooperation of the first piston and the regulating disc, intermittent delivery of blood is realized, the human body blood vessel is simulated by the infusion tube, the simulated environment is more similar to the human body environment, and the debugged blood oximeter detection result is more accurate.
The technical scheme has the following defects: the driving mechanism (built-in motor) for driving the piston is driven by data of the oximeter, and the oximeter detects that the oxygen content in blood is reduced and has longer hysteresis, so that the rhythm of the piston transfusion cannot keep up with the requirement of a human body in time, that is, the rhythm is not really close to the environment of the human body.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a blood oxygen simulation device capable of intermittent transfusion.
The technical scheme of the utility model is as follows:
an oxygen-blood simulation device capable of intermittent transfusion comprises a simulation device main body and a driving signal generator;
the driving signal generator comprises a power supply, a chip and an electrocardiosignal, wherein the power supply is connected with the e pole of a first triode, the b pole of the first triode is connected with the output end of a monostable trigger, the input end of the monostable trigger is connected with the electrocardiosignal, the c pole of the first triode is respectively connected with the first end of a first resistor, the fourth pin of the chip, the eighth pin and the e pole of a second triode, the second end of the second resistor is respectively connected with the first end of a third resistor and the seventh pin of the chip, the second end of the third resistor is respectively connected with the sixth pin of the chip, the second pin of the first capacitor and the first end of a first capacitor, the second end of the first capacitor is respectively connected with the first end of the chip, the first end of the fourth resistor and the ground, the first end of the second capacitor is connected with the fifth pin of the chip, the b pole of the second triode is respectively connected with the third pin of the chip, and the c pole of the second triode is respectively connected with the second end of the fourth resistor and the motor driving signal input end of a driving mechanism in the analog device body.
Specifically, the chip is a 555 chip, the first resistor, the second resistor, the third resistor, the first capacitor and the second capacitor form a common pulse generator, and the part of the structure can be directly purchased in the market, so that the cost is saved.
Specifically, the second resistor adopts a potentiometer, and because the design life of the analog device is longer, when the resistance value of the circuit changes due to aging, errors can be compensated by fine adjustment of the potentiometer.
Specifically, the first triode and the second triode both adopt 9012 triodes, and the price is low, and the cost is reduced.
Specifically, the resistance of the first resistor is 2000 ohms, the resistance of the second resistor is 10000 ohms, the resistance of the third resistor is 51000 ohms, and the capacitance of the first capacitor and the capacitance of the second capacitor are both 0.1 microfarads, so that the circuit (output by a third pin of a 555 chip) just outputs 1000 Hz signals.
Specifically, the resistance of the fourth resistor is smaller than or equal to 20000 ohms, and the resistor mainly serves to protect the second triode, that is, prevent the ground terminal from flowing backward.
Specifically, the monostable flip-flop adopts a 74HC123 monostable flip-flop, and the monostable time can be set arbitrarily (for example, 0.2 seconds).
The beneficial effects of the utility model are as follows: the heart sensor is used for collecting the heart rate of a human body as signal input, the working frequency of the driving mechanism is controlled according to the heart rate, the work of a heart valve of the human body is simulated through the cooperation of the first piston and the regulating disc, intermittent conveying of blood is realized, a human body blood vessel is simulated through the infusion tube, and the simulated environment is more similar to the human body environment.
Drawings
Fig. 1 is a circuit schematic of the present utility model.
Detailed Description
The following is a further description of embodiments of the utility model, taken in conjunction with the accompanying drawings:
as shown in FIG. 1, an intermittent transfusion blood oxygen simulation device comprises a simulation device main body and a driving signal generator;
the driving signal generator comprises a power supply VCC, a chip and an electrocardiosignal, wherein the power supply VCC is connected with the e pole of a first triode Q1, the b pole of the first triode Q1 is connected with the output end of a monostable trigger FF, the input end of the monostable trigger FF is connected with the electrocardiosignal, the C pole of the first triode Q1 is respectively connected with the first end of a first resistor R1, the fourth pin 4, the eighth pin 8 and the e pole of a second triode Q2, the second end of the second resistor R2 is respectively connected with the first end of a third resistor R3 and the seventh pin 7 of the chip, the second end of the third resistor R3 is respectively connected with the sixth pin 6 of the chip, the second pin 2 and the first end of a first capacitor C1, the second end of the first capacitor C1 is respectively connected with the second end of the chip, the first end of a fourth resistor R4 and the ground, the first end of the second capacitor C2 is connected with the fifth pin 5 of the chip, the b pole of the second triode Q2 is respectively connected with the third pin 3 of the chip, and the second electrode of the second triode Q2 is respectively connected with the first end of the third resistor C2 and the third resistor C4.
The chip is a 555 chip.
The second resistor R2 adopts a potentiometer.
The first triode Q1 and the second triode Q2 are 9012 triodes.
The resistance of the first resistor R1 is 2000 ohms, the resistance of the second resistor R2 is 10000 ohms, the resistance of the third resistor R3 is 51000 ohms, and the capacitance of the first capacitor C1 and the capacitance of the second capacitor C2 are both 0.1 microfarads.
The resistance value of the fourth resistor R4 is smaller than or equal to 20000 ohms.
The monostable flip-flop FF employs a 74HC123 monostable flip-flop.
The working principle of the utility model is as follows:
assuming a normal heartbeat frequency (60 times/min) human access device, the electrocardio sensor collects the heartbeat frequency and inputs the heartbeat frequency to the monostable trigger, the monostable time of the monostable trigger is set to be 0.2 seconds (namely, when a heartbeat signal is received, the monostable trigger keeps outputting a high level outwards for 0.2 seconds), because the monostable trigger controls the power supply to be conducted with the chip through the first triode, the power supply is communicated with the chip for 60 times in one minute, each time is 0.2 seconds, the total 12 seconds of power-on time is reached, the 555 chip and the accessory part enable the third pin of the analog device to send 1000 signals per second, and under the influence of the power interruption, the circuit sends 12 times of 1000 signals per minute to the driving signal input end of the motor, and as well known, the motor needs 200 pulse signals per minute when the motor rotates for 1.5 degrees, and finally the motor rotates for 60 times in one minute, the piston slides for 60 times, so that the analog device can be matched with the human body environment.
The foregoing embodiments and description have been provided merely to illustrate the principles and best modes of carrying out the utility model, and various changes and modifications can be made therein without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (5)
1. An oxygen blood simulator capable of intermittent transfusion is characterized by comprising a simulator main body and a driving signal generator;
the driving signal generator comprises a power supply, a chip and an electrocardiosignal, wherein the power supply is connected with the e pole of a first triode, the b pole of the first triode is connected with the output end of a monostable trigger, the input end of the monostable trigger is connected with the electrocardiosignal, the c pole of the first triode is respectively connected with the first end of a first resistor, the fourth pin of the chip, the eighth pin and the e pole of a second triode, the second end of the second resistor is respectively connected with the first end of a third resistor and the seventh pin of the chip, the second end of the third resistor is respectively connected with the sixth pin of the chip, the second pin of the first capacitor and the first end of a first capacitor, the second end of the first capacitor is respectively connected with the first end of the chip, the first end of the fourth resistor and the ground, the first end of the second capacitor is connected with the fifth pin of the chip, the b pole of the second triode is respectively connected with the third pin of the chip, and the c pole of the second triode is respectively connected with the second end of the fourth resistor and the motor driving signal input end of a driving mechanism in the analog device body.
2. An intermittent infusion blood oxygen simulation device according to claim 1, wherein: the chip is a 555 chip.
3. An intermittent infusion blood oxygen simulation device according to claim 1, wherein: the first triode and the second triode are 9012 triodes.
4. An intermittent infusion blood oxygen simulation device according to claim 1, wherein: and the resistance value of the fourth resistor is smaller than or equal to 20000 ohms.
5. An intermittent infusion blood oxygen simulation device according to claim 1, wherein: the monostable trigger adopts a 74HC123 monostable trigger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223247439.3U CN219461158U (en) | 2022-12-05 | 2022-12-05 | Blood oxygen simulator capable of intermittent transfusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223247439.3U CN219461158U (en) | 2022-12-05 | 2022-12-05 | Blood oxygen simulator capable of intermittent transfusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219461158U true CN219461158U (en) | 2023-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223247439.3U Active CN219461158U (en) | 2022-12-05 | 2022-12-05 | Blood oxygen simulator capable of intermittent transfusion |
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| Country | Link |
|---|---|
| CN (1) | CN219461158U (en) |
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2022
- 2022-12-05 CN CN202223247439.3U patent/CN219461158U/en active Active
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