CN201768217U - Remifentanil intelligent injection device - Google Patents
Remifentanil intelligent injection device Download PDFInfo
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- CN201768217U CN201768217U CN2010202456675U CN201020245667U CN201768217U CN 201768217 U CN201768217 U CN 201768217U CN 2010202456675 U CN2010202456675 U CN 2010202456675U CN 201020245667 U CN201020245667 U CN 201020245667U CN 201768217 U CN201768217 U CN 201768217U
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- remifentanil
- control
- injection device
- infusion
- hydraulic cylinder
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Abstract
The utility model discloses an injection device for a remifentanil feedback control drug feeding, which comprises a power supply, an infusion actuator and a control device, and is characterized in that the infusion actuator comprises a controllable motor, a hydraulic pump, a single-rod piston type hydraulic cylinder and a syringe, wherein the syringe which is provided with remifentanil is arranged on a fixing frame, a rod of the single-rod piston type hydraulic cylinder is provided with a propulsion block, the propulsion block is fixedly connected with a push rod of the syringe, and the controllable motor drives a hydraulic cylinder piston through the hydraulic pump. The injection device controls heart rate not to be obviously reduced, increases the safety of drugs, is convenient in use, can automatically feed drugs just through inputting basic heart rate of patients and heart rate control range, and can automatically complete all by self, thereby achieving intravenous anesthesia sequencing and sequential drug feeding.
Description
Technical field
It is the injection device of index feedback control intravenous anesthesia medicine remifentanil with the changes in heart rate that this utility model relates to a kind of.
Background technology
Along with development of computer, according to the principle administration of pharmacokinetics, controlled by single chip microprocessor infusion pump, i.e. target controlled infusion (Target Controlled Infusion, TCI) can be based on pharmacokinetics and pharmacodynamics, by regulating drug target concentration control depth of anesthesia.
Intelligent infusion control system is meant by the self-regulating drug-supplying system of certain feedback signal, it presses compatriots' intravenous anesthetic for the calmness of mathematic(al) parameter infusion, analgesia and muscle relaxant with the Single-chip Controlling injection device, and be that feedback parameter realizes that closed loop controls administration automatically, regulates patient's depth of anesthesia with the pharmacodynamic index of sensitivity, safe and reliable, anesthesia steady and easy to operate, it has solved the wayward and many shortcomings of anthropic factor influence of previously intravenous anesthesia, realizes intravenous anesthesia sequencing, the administration of sequential property.The feedback index that adopts has BIS value (brain electricity bispectral index at present, prevent to know in the art), HRVI (heart rate variability, prevent excessive stress) and blood pressure and heart rate etc., but still do not have definite and ideal index, be impossible with all medicines of single control indexes.Therefore, seek the relevant pharmacodynamic index of different pharmaceutical and be used to feed back imperative.
Pharmacodynamic index should be able to quantitative parameter be described preferably, drug level is changed responsive relatively, and good repeatability, reliable and clinical meaning arranged is arranged.Remifentanil is the μ receptor stimulating agent, and analgesic effect is good, action time is short and controllability is good, is ideal intravenous anesthesia target controlled infusion medicine; But clinical research finds that remifentanil has side effect such as respiration inhibition, muscle rigidity, hypopiesia, bradycardia, and injection speed and blood drug level control have a significant effect to its anesthesia usefulness and side effect.The remifentanil pharmacodynamic index can be used marginal frequency, respiration inhibition or clinical sign etc.The index of correlation is 0.930 when having confirmed that HR is the remifentanil pharmacodynamics index, can quantize the drug effect of remifentanil well as pharmacodynamic index.
The utility model content
The purpose of this utility model, just provide a kind of possess intelligence, serve as feedback control indexes remifentanil injection speed with real-time heart rate, and then the intelligent injection device of remifentanil of control remifentanil blood drug level.
The purpose of this utility model is to realize by following technical scheme: the intelligent injection device of a kind of remifentanil, comprise power supply, infusion actuator and control device, it is characterized in that: described infusion actuator comprises controllable motor, hydraulic pump, single-rod piston formula hydraulic cylinder, is placed in the syringe that remifentanil is housed on the fixed mount, the bar of single-rod piston formula hydraulic cylinder is provided with forward block, forward block is fixedlyed connected with the push rod of syringe, and controllable motor is by the hydraulic pump drive hydraulic cylinder piston.
Control device is made of central control single chip computer, display device and the input equipment of power management module, the control module of infusion actuator, built-in control sequence, power supply is subjected to power management module control to each device power supply, and central control single chip computer has data wire to be electrically connected with control module, display device and the input equipment of power management module, infusion actuator respectively.
Control device also comprises the cardiac monitoring module of being with electrocardioelectrode, and its output signal is connected to the signal input part of central control single chip computer by network interface.
Described display device is a LCDs.
Described input equipment is keyboard or touch screen.
On the basis of the above, this utility model can be done following improvement:
Described infusion actuator also comprises infusion ultimate position pick off.
Described power supply also comprises backup battery, and it is connected with power management module by data wire.
The beneficial effects of the utility model are:
1. the basic research of this patent has confirmed that heart rate is the effective pharmacodynamic index of remifentanil, and remifentanil blood drug level and changes in heart rate have good dependency, but by changes in heart rate feedback control remifentanil blood drug level, and then the control depth of anesthesia.
2. heart rate is a physiological parameters of patients, is monitoring index the most frequently used in the clinical operation process, does not influence the enforcement of operation and anesthesia, easily obtains, and does not increase patient trauma and financial burden.
3. remifentanil is potent μ receptor agonism medicine, and to the heart rate influence obviously, heart rate obviously slowed down even danger when injection speed was excessive.The unlikely obvious reduction of this patent control heart rate has increased the safety of medication.
4. the intelligent injection device of remifentanil is easy to use, LCDs shows multinomial data such as needing concentration in injection process, have good real time performance, as long as input patient's basal heart rate and heart rate span of control, this device gets final product automatic chemical feeding, and all are finished automatically by device.As adjusting concentration range, reconfigurable new heart rate span of control gets final product.
Description of drawings
Accompanying drawing 1 is a principle assumption diagram of the present utility model;
Fig. 2 is the principle assumption diagram of this utility model infusion actuator.
The specific embodiment
As shown in Figure 1, the intelligent injection device embodiment of this novel remifentanil, comprise infusion actuator 1, control device 2 and power supply 3, the infusion actuator comprises controllable motor, hydraulic pump, single-rod piston formula hydraulic cylinder, is placed in syringe and position sensor formation that remifentanil is housed on the fixed mount; Control device is made of central control single chip computer, LCDs and the finger-impu system of power management module, the control module of infusion actuator, built-in control sequence, AC-DC Switching Power Supply and the backup battery of power supply for having control line to be connected with power management module respectively, power supply are powered to each device by power management module control; Single-chip microcomputer has data wire to be electrically connected with control module, position sensor, LCDs and the keyboard of power management module, infusion actuator respectively, the output control controllable motor of control module, control device also includes electrocardiogram monitor, it includes the electrocardioelectrode that can be placed in patient's chest, and the outfan of electrocardiogram monitor is connected to the input of single-chip microcomputer by the networking interface.
Fig. 3 is the principle assumption diagram of this utility model infusion actuator, the infusion actuator comprises controllable motor, hydraulic pump, single-rod piston formula hydraulic cylinder, is placed in the syringe that remifentanil is housed on the fixed mount, the bar of single-rod piston formula hydraulic cylinder is provided with forward block, forward block is fixedlyed connected with the push rod of syringe, controllable motor is by the hydraulic pump drive hydraulic cylinder piston, thus pushing syringe.
The electrocardioelectrode of electrocardiogram monitor is placed in patient's chest collection, the monitoring patient rhythm of the heart, and patient's real-time heart rate is sent in the single-chip microcomputer as the feedback index by the networking interface, single-chip microcomputer calculates relatively patient's heart rate value and conduct feedback index heart rate value at this moment according to plug-in, and transmit control signal and be sent to the control module of infusion actuator, then, the control module of infusion actuator drives controllable motor, controllable motor is by the hydraulic pump drive hydraulic cylinder piston, thereby drive the bar and the forward block on it of hydraulic cylinder, the forward block pushing syringe carries out infusion to the patient.Along with the increase of remifentanil injection speed and blood drug level, patient heart rate slows down, the reduction of remifentanil injection speed and blood drug level, and heart rate increases.
This device is by being benchmark with the patient base heart rate, the remifentanil administration is controlled on the pharmacodynamic index feedback ground that is changed to heart rate, be equipped with tranquilizer and muscle relaxant and anesthetic machine control breathing again, can guarantee safety in patient's art, provide condition smoothly for performing the operation.
Infusion ultimate position pick off sends the single-chip microcomputer output alarm that signal is given control device after infused.
Characteristics of the present utility model are: can control the Remifentanil blood concentration by changes in heart rate, and then the control depth of anesthesia; Heart rate is physiological parameters of patients, is monitoring index the most frequently used in the clinical operation process, does not affect the enforcement of operation and anesthesia, does not increase patient trauma and financial burden; Remifentanil is obvious to the heart rate impact, and heart rate obviously slowed down even danger when injection speed was excessive. The unlikely obvious reduction of this patent control heart rate has increased the security of medication; And easy to use, as long as input patient's basal heart rate and Rate control scope, this device gets final product automatic chemical feeding, and all are finished automatically by device, have realized Intravenous Anesthesia sequencing, sequential administration.
Claims (5)
1. the intelligent injection device of a remifentanil, comprise power supply (3), infusion actuator (1) and control device (2), it is characterized in that: described infusion actuator comprises controllable motor, hydraulic pump, single-rod piston formula hydraulic cylinder, is placed in the syringe that remifentanil is housed on the fixed mount, the bar of single-rod piston formula hydraulic cylinder is provided with forward block, forward block is fixedlyed connected with the push rod of syringe, and controllable motor is by the hydraulic pump drive hydraulic cylinder piston.
2. the intelligent injection device of remifentanil according to claim 1, it is characterized in that: described control device is made of central control single chip computer, display device and the input equipment of power management module, the control module of infusion actuator, built-in control sequence, power supply is subjected to power management module control to each device power supply, and central control single chip computer has data wire to be electrically connected with control module, display device and the input equipment of power management module, infusion actuator respectively.
3. the intelligent injection device of remifentanil according to claim 2, it is characterized in that: control device also comprises the cardiac monitoring module of being with electrocardioelectrode, its output signal is connected to the signal input part of central control single chip computer by network interface.
4. the intelligent injection device of remifentanil according to claim 3, it is characterized in that: described infusion actuator (1) also comprises infusion ultimate position pick off, it exports the central control single chip computer of control device to.
5. the intelligent injection device of remifentanil according to claim 4, it is characterized in that: described display device is a LCDs, and described input equipment is keyboard or touch screen, and described power supply also comprises backup battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202456675U CN201768217U (en) | 2010-07-01 | 2010-07-01 | Remifentanil intelligent injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202456675U CN201768217U (en) | 2010-07-01 | 2010-07-01 | Remifentanil intelligent injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201768217U true CN201768217U (en) | 2011-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202456675U Expired - Fee Related CN201768217U (en) | 2010-07-01 | 2010-07-01 | Remifentanil intelligent injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201768217U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399140A (en) * | 2014-12-04 | 2015-03-11 | 广西大学 | Electrically controlled hydraulic medical treatment infusion apparatus |
| CN108992743A (en) * | 2018-08-06 | 2018-12-14 | 广州友沃医疗设备有限公司 | A kind of injecting method automatically generating injection plan and equipment |
-
2010
- 2010-07-01 CN CN2010202456675U patent/CN201768217U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399140A (en) * | 2014-12-04 | 2015-03-11 | 广西大学 | Electrically controlled hydraulic medical treatment infusion apparatus |
| CN108992743A (en) * | 2018-08-06 | 2018-12-14 | 广州友沃医疗设备有限公司 | A kind of injecting method automatically generating injection plan and equipment |
| CN108992743B (en) * | 2018-08-06 | 2022-01-07 | 广州友沃医疗设备有限公司 | Injection method and device for automatically generating injection plan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20110701 |