CN109171672A - A kind of Internal Medicine-Cardiovascular Dept. detector and detection method - Google Patents
A kind of Internal Medicine-Cardiovascular Dept. detector and detection method Download PDFInfo
- Publication number
- CN109171672A CN109171672A CN201810888539.3A CN201810888539A CN109171672A CN 109171672 A CN109171672 A CN 109171672A CN 201810888539 A CN201810888539 A CN 201810888539A CN 109171672 A CN109171672 A CN 109171672A
- Authority
- CN
- China
- Prior art keywords
- blood vessel
- main body
- internal medicine
- instrument main
- motion block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
Abstract
The invention belongs to technical field of medical equipment, disclose a kind of Internal Medicine-Cardiovascular Dept. detector and detection method, it is provided with blood vessel instrument main body, blood vessel instrument body surfaces pass through screw respectively and are equipped with function button and LCD display, and the left side of blood vessel instrument main body is equipped with voice broadcast mouth.The lower section of blood vessel instrument main body is equipped with right fixed block by screw and moves to left motion block.Right fixed block is fixed by screws in the lower section of blood vessel instrument main body, moves to left in the sliding slot that motion block is stuck in below blood vessel instrument main body.The lower left of blood vessel instrument main body, which is screwed, is equipped with stepping motor bracket, and stepper motor is fixed in stepping motor bracket, and stepper motor is connect by shaft coupling with screw rod, and screw rod, which is inserted in, to move to left inside motion block.The present invention passes through the feedback regulation control of location triggered sensor, and the device is allow to automatically adjust the clamping level of fixture according to patient's arm, time saving and energy saving, also facilitates the installation of fixture, reduces the set-up time, improves detection efficiency.
Description
Technical field
The invention belongs to technical field of medical equipment more particularly to a kind of Internal Medicine-Cardiovascular Dept. detector and detection methods.
Background technique
Cardiovascular disease full name cardiovascular disease, also known as circulation system disease refer to a series of diseases of the circulatory system, packet
Include heart, artery and vein vascular, microvascular disease, such as hypertension, hyperlipidemia, hyperglycemia and cerebrovascular sclerosis, apoplexy.
The symptoms such as the main had palpitation of clinical manifestation, dizziness, cyanosis, expiratory dyspnea.Cardiovascular disease.Currently, existing cardiovascular detection
Instrument when in use, needs manually to adjust the size of fixture according to the thickness of examiner's arm, just detection device can be made firm
It is mounted on patient's arm, it is time-consuming and laborious, it is also inconvenient.
In conclusion problem of the existing technology is: existing cardiovascular detector when in use, needs artificial basis
The thickness of examiner's arm adjusts the size of fixture.
The smoothness of data sequence is poor in the prior art, and the dispersion of former sequence data is high, so that the spy of initial data
Property with rule it is not obvious enough；In step motor control, the pulsed quantity of step-out is not compensated, instrument accuracy grade is caused to decline；
Meanwhile instrument does not have resistance to shock in the case where the vibration environments such as moving or transporting.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of Internal Medicine-Cardiovascular Dept. detector and detection methods.
The invention is realized in this way a kind of detection method of Internal Medicine-Cardiovascular Dept., the detection method of the Internal Medicine-Cardiovascular Dept.
Include:
(1) device is covered on the arm of patient, detection sensor is directed at the vein of patient；Arm is set to be close to right fixation
Block is started turning by key control stepper motor by manipulation function, screw rod connected to it is driven to start turning；
Electric impulse signal is changed into the opened loop control element of angular displacement or displacement of the lines by the stepper motor:
It is single order low pass link after Laplace transform:
In formula, TeIt is respectively the electromagnetic torque and rotational angular velocity of stepper motor with w；B be the viscid friction of machine winding because
Number；J is load rotating inertia；
Single order low pass link, log magnitude-frequency characteristics describe formula are as follows:
lg||G(fc) | |=lgK-0.5lg ((Tfc)2+1)；
The nonlinear mathematical model of step out of stepping motor are as follows:
Ne=bexp (afc)+v；
Wherein, a, b are parameter to be estimated, and v is measurement noise；
Based on input, output data, its parameter is recognized using least square method；Equivalently, logarithm is taken to model
Function linearizes model parameter, i.e., are as follows:
lnNe=lnb+afc；
Enable y=lnNe, l=lnb is then written as:
Y=l+afc；
In formula, parameter θ to be estimated=[a, l]T；
For given defeated people's output data (fci, yi), i=1,2 ..., n, if defeated people's vector h=[fc1, fc2..., fcn]T,
Output vector y=[y1,y2,...yn]T；Objective function are as follows:
Minimization objective function obtains the least-squares estimation of parameter are as follows:
In formula:
Based on resulting Ne-fcCurvilinear function, at any speed of service frequency fc, available corresponding pulse difference Ne,
Pulse difference precompensation is carried out to the step-out of stepper motor；In the speed of service f of given displacement of targets amount p and settingcUnder, according to
Ne-fcFunctional relation obtains pulse difference NeValue adjusts the defeated people N=P+N of stepper motor pulsee, in step motor control, to mistake
The pulsed quantity of step compensates；
(2) it covers and moves left BOB(beginning of block) to patient's arm motion on screw rod, sensed when moving to left the location triggered in motion block
When travel switch on device encounters patient's arm, travel switch touches the pressure trigger in location triggered sensor；
(3) it is fed back and inverts stepper motor and make to move to left motion block and back move a certain distance, make patient's arm just
Card is placed on right fixed block and moves to left between motion block；Operating function key progress cardiovascular indicators check patient again, and will count
According to as the result is shown on LCD display.
Further, the LCD display includes LCD MODULE, and design, which has, reinforces function anti shock and vibration function,
By being fixedly connected again after floating installation between LCD MODULE and shell, with the vibration for the liquid crystal display that absorbs and decay
Energy；And by flexible adhesives multi-point support between backlight elongated CCFL fluorescent tube and lampshade, to improve the anti-of fluorescent tube
Vibration performance；Vibration isolation carry-over factor formula is as follows:
In formula: ω is exciting circular frequency；P is the inherent circular frequency of system；P=(k/m)0.5；ζ is damping ratio, ζ=C/Ccr；
CcrFor critical damping coefficient；
As the ratio between excited frequency ω and the intrinsic frequency P of vibration insulating system,When, just there is vibration isolating effect；I.e. every
Shake coefficient η < 1, and response amplitude is less than excitation amplitude, just plays vibration isolation；With the raising of excited frequency, the response of system is rapid
Decaying；When lesser damping ratio, effect is also preferable；
The detection sensor, the detection sensor have the function of rectification building-out to data, take GM (1, N) model to biography
Sensor data carry out modeling processing:
For sensing system according to data time sequential configuration, data sequence algorithm is as follows:
In formula,K=1,2,3 ..., n, D are referred to as X(0)One-accumulate generate
Operator.By the accumulation process of data, the smoothness of data sequence is improved, the dispersion of former sequence data is reduced, so that original
The characteristic of data becomes apparent from rule.
Another object of the present invention is to provide a kind of Internal Medicine-Cardiovascular Dept.s of detection method for realizing the Internal Medicine-Cardiovascular Dept.
Detector, the Internal Medicine-Cardiovascular Dept. detector are provided with blood vessel instrument main body, and blood vessel instrument body surfaces are equipped with by screw respectively
The left side of function button and LCD display, blood vessel instrument main body is equipped with voice broadcast mouth；Pass through screw below blood vessel instrument main body
Right fixed block is installed and moves to left motion block.Right fixed block is fixed by screws in the lower section of blood vessel instrument main body, moves to left motion block and is stuck in
In sliding slot below blood vessel instrument main body；The lower left of blood vessel instrument main body, which is screwed, is equipped with stepping motor bracket, stepping
Stepper motor is fixed on electric machine support, stepper motor is connect by shaft coupling with screw rod, and screw rod, which is inserted in, to move to left inside motion block；
It right fixed block and moves to left and has been screwed detection sensor between motion block.It moves to left and location triggered sensing is installed on motion block
Device；
The interior bottom portion of location triggered sensor is a pressure trigger, and a reset bullet is cased with outside pressure trigger
Spring, reset spring interior welds have a travel switch.
Further, it is fixed with stepper motor below the blood vessel instrument, moves to left moving back and forth for motion block for controlling.
Further, reset spring is installed in the location triggered sensor, with after triggering pressure trigger by stroke
Switch rebounds.
Further, travel switch is installed in the location triggered sensor, after touching patient's arm, triggers pressure
Trigger.
The Internal Medicine-Cardiovascular Dept. detector passes through the feedback regulation control of location triggered sensor, allows the device according to trouble
Person's arm automatically adjusts the clamping level of fixture, time saving and energy saving, also facilitates the installation of fixture, reduces the set-up time, improves
Detection efficiency.
Internal Medicine-Cardiovascular Dept. detector provided by the invention improves the smoothness of data sequence by the accumulation process of data,
The dispersion for reducing former sequence data, so that the characteristic of initial data becomes apparent from rule；In step motor control, to step-out
Pulsed quantity compensate；By being fixedly connected again after floating installation between LCD MODULE and shell, to absorb and decline
The vibrational energy of depletion crystal display；And pass through flexible adhesives multiple spot branch between backlight elongated CCFL fluorescent tube and lampshade
Support, to improve the resistance to shock of fluorescent tube.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of Internal Medicine-Cardiovascular Dept. detector provided in an embodiment of the present invention；
Fig. 2 is the side structure schematic diagram of Internal Medicine-Cardiovascular Dept. detector provided in an embodiment of the present invention；
Fig. 3 is the location trigger structural schematic diagram of Internal Medicine-Cardiovascular Dept. detector provided in an embodiment of the present invention；
In figure: 1, blood vessel instrument main body；2, function button；3, right fixed block；4, motion block is moved to left；5, stepper motor；6, voice
Broadcast mouth；7, LCD display；8, detection sensor；9, location triggered sensor；10, screw rod；11, stepping motor bracket；12,
Travel switch；13, pressure trigger；14, reset spring；
Specific embodiment
In order to further understand the content, features and effects of the present invention, the following examples are hereby given, and cooperate attached drawing
Detailed description are as follows.
Structure of the invention is explained in detail with reference to the accompanying drawing.
As shown in Fig. 1 to Fig. 3, Internal Medicine-Cardiovascular Dept. detector provided in an embodiment of the present invention includes: blood vessel instrument main body 1, function
Energy key 2, right fixed block 3 move to left motion block 4, stepper motor 5, voice broadcast mouth 6, LCD display 7, detection sensor 8, position
Trigger sensor 9, screw rod 10, stepping motor bracket 11, travel switch 12, pressure trigger 13, reset spring 14；
1 surface of blood vessel instrument main body passes through screw respectively and is equipped with function button 2 and LCD display 7, blood vessel instrument main body 1
The left side is equipped with voice broadcast mouth 6.The lower section of blood vessel instrument main body 1 is equipped with right fixed block 3 by screw and moves to left motion block 4.It is right
Fixed block 3 is fixed by screws in the lower section of blood vessel instrument main body 1, moves to left motion block 4 and is stuck in the sliding slot of 1 lower section of blood vessel instrument main body.
The lower left of blood vessel instrument main body 1, which is screwed, is equipped with stepping motor bracket 11, and step is fixed in stepping motor bracket 11
Into motor 5, stepper motor 5 is connect by shaft coupling with screw rod 10, and screw rod 10, which is inserted in, to move to left inside motion block 4.Right 3 He of fixed block
It moves to left and has been screwed detection sensor 8 between motion block 4.It moves to left and location triggered sensor 9 is installed on motion block 4.
The interior bottom portion of location triggered sensor 9 is a pressure trigger 13, and one is cased with outside pressure trigger 13 again
Position spring 14,14 interior welds of reset spring have a travel switch 12.
The working principle of the invention is: in use, covering the device on the arm of patient, the alignment of detection sensor 8 is suffered from
The vein of person.So that arm is close to right fixed block 3, stepper motor 5 is controlled by manipulation function key 2 and is started turning, to drive
Screw rod 10 connected to it starts turning.The motion block 4 that moves to left covered on screw rod 10 also starts to patient's arm motion, when moving left
When the travel switch 12 on location triggered sensor 9 in block 4 encounters patient's arm, travel switch 12 touches location triggered biography
Pressure trigger 13 in sensor 9, the device, which is fed back and inverts stepper motor 5 and make to move to left motion block 4, at this time back moves one
Fixed distance is placed on right fixed block 3 and moves to left between motion block 4 so that patient's arm be made just to block.Patient's operating function again at this time
Key 2 carries out a series of cardiovascular indicators such as rate pressure and is checked, and data result is shown on LCD display 7.
The above is only the preferred embodiments of the present invention, and is not intended to limit the present invention in any form,
Any simple modification made to the above embodiment according to the technical essence of the invention, equivalent variations and modification, belong to
In the range of technical solution of the present invention.
Claims (6)
1. a kind of detection method of Internal Medicine-Cardiovascular Dept., which is characterized in that the detection method of the Internal Medicine-Cardiovascular Dept. includes:
(1) device is covered on the arm of patient, detection sensor is directed at the vein of patient；So that arm is close to right fixed block, leads to
It crosses manipulation function to start turning by key control stepper motor, screw rod connected to it is driven to start turning；
Electric impulse signal is changed into the opened loop control element of angular displacement or displacement of the lines by the stepper motor:
It is single order low pass link after Laplace transform:
In formula, TeIt is respectively the electromagnetic torque and rotational angular velocity of stepper motor with w；B is the viscid friction factor of machine winding；J is
Load rotating inertia；
Single order low pass link, log magnitude-frequency characteristics describe formula are as follows:
lg||G(fc) | |=lgK-0.5lg ((Tfc)2+1)；
The nonlinear mathematical model of step out of stepping motor are as follows:
Nc=bexp (afc)+v；
Wherein, a, b are parameter to be estimated, and v is measurement noise；
Based on input, output data, its parameter is recognized using least square method；Equivalently, logarithmic function is taken to model,
Model parameter is linearized, i.e., are as follows:
lnNe=lnb+afc；
Enable y=lnNe, l=lnb is then written as:
Y=l+afc；
In formula, parameter θ to be estimated=[a, l]T；
For given defeated people's output data (fci, yi), i=1,2 ..., n, if defeated people's vector h=[fc1, fc2..., fcn]T, defeated
Outgoing vector y=[y1,y2,...yn]T；Objective function are as follows:
Minimization objective function obtains the least-squares estimation of parameter are as follows:
In formula:
Based on resulting Ne-fcCurvilinear function, at any speed of service frequency fc, available corresponding pulse difference Ne, to step
Step-out into motor carries out pulse difference precompensation；In the speed of service f of given displacement of targets amount p and settingcUnder, according to Ne-fc
Functional relation obtains pulse difference NeValue adjusts the defeated people N=P+N of stepper motor pulsee, in step motor control, to the arteries and veins of step-out
Momentum compensates；
(2) it covers and moves left BOB(beginning of block) to patient's arm motion on screw rod, when moving to left on the location triggered sensor in motion block
Travel switch when encountering patient's arm, travel switch touches the pressure trigger in location triggered sensor；
(3) it is fed back and inverts stepper motor and make to move to left motion block and back move a certain distance, blocked patient's arm just and put
In right fixed block and move to left between motion block；Operating function key carries out cardiovascular indicators and checks patient again, and by data knot
Fruit is shown on LCD display.
2. the detection method of Internal Medicine-Cardiovascular Dept. as described in claim 1, which is characterized in that the LCD display includes liquid
Brilliant display module, design, which has, reinforces function anti shock and vibration function, passes through floating installation between LCD MODULE and shell
It is fixedly connected again afterwards, with the vibrational energy for the liquid crystal display that absorbs and decay；And the CCFL fluorescent tube and lampshade elongated in backlight
Between by flexible adhesives multi-point support, to improve the resistance to shock of fluorescent tube；Vibration isolation carry-over factor formula is as follows:
In formula: ω is exciting circular frequency；P is the inherent circular frequency of system；P=(k/m)0.5；ζ is damping ratio, ζ=C/Ccr；CcrFor
Critical damping coefficient；
As the ratio between excited frequency ω and the intrinsic frequency P of vibration insulating system,When, just there is vibration isolating effect；That is vibration isolation system
Number η < 1, response amplitude are less than excitation amplitude, just play vibration isolation；With the raising of excited frequency, the response of system declines rapidly
Subtract；When lesser damping ratio, effect is also preferable；
The detection sensor, the detection sensor have the function of rectification building-out to data, take GM (1, N) model to sensor
Data carry out modeling processing:
For sensing system according to data time sequential configuration, data sequence algorithm is as follows:
In formula,K=1,2,3 ..., n, D are referred to as X(0)One-accumulate generating operator；
By the accumulation process of data, the smoothness of data sequence is improved, reduces the dispersion of former sequence data, so that initial data
Characteristic becomes apparent from rule.
3. a kind of Internal Medicine-Cardiovascular Dept. detector for the detection method for realizing Internal Medicine-Cardiovascular Dept. described in claim 1, which is characterized in that
The Internal Medicine-Cardiovascular Dept. detector is provided with blood vessel instrument main body, and blood vessel instrument body surfaces pass through screw respectively and are equipped with function button
And LCD display, the left side of blood vessel instrument main body are equipped with voice broadcast mouth；The lower section of blood vessel instrument main body is equipped with the right side by screw
Fixed block and move to left motion block；Right fixed block is fixed by screws in the lower section of blood vessel instrument main body, moves to left motion block and is stuck in blood vessel instrument master
In sliding slot below body；The lower left of blood vessel instrument main body, which is screwed, is equipped with stepping motor bracket, stepping motor bracket
On be fixed with stepper motor, stepper motor is connect by shaft coupling with screw rod, and screw rod, which is inserted in, to move to left inside motion block；Right fixed block
And it moves to left and has been screwed detection sensor between motion block；It moves to left and location triggered sensor is installed on motion block；
The interior bottom portion of location triggered sensor is a pressure trigger, is cased with a reset spring outside pressure trigger, multiple
Position spring inner is welded with a travel switch.
4. Internal Medicine-Cardiovascular Dept. detector as claimed in claim 3, which is characterized in that be fixed with stepping below the blood vessel instrument
Motor moves to left moving back and forth for motion block for controlling.
5. Internal Medicine-Cardiovascular Dept. detector as claimed in claim 3, which is characterized in that be equipped in the location triggered sensor
Reset spring is rebounded travel switch with after triggering pressure trigger.
6. Internal Medicine-Cardiovascular Dept. detector as claimed in claim 3, which is characterized in that be equipped in the location triggered sensor
Travel switch triggers pressure trigger after touching patient's arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810888539.3A CN109171672A (en) | 2018-08-07 | 2018-08-07 | A kind of Internal Medicine-Cardiovascular Dept. detector and detection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810888539.3A CN109171672A (en) | 2018-08-07 | 2018-08-07 | A kind of Internal Medicine-Cardiovascular Dept. detector and detection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109171672A true CN109171672A (en) | 2019-01-11 |
Family
ID=64920758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810888539.3A Pending CN109171672A (en) | 2018-08-07 | 2018-08-07 | A kind of Internal Medicine-Cardiovascular Dept. detector and detection method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109171672A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109935327A (en) * | 2019-03-15 | 2019-06-25 | 南方医科大学顺德医院(佛山市顺德区第一人民医院) | Hypertensive patient's cardiovascular risk grading appraisal procedure based on intelligence decision support system |
| CN112842300A (en) * | 2021-02-04 | 2021-05-28 | 深圳市奥生科技有限公司 | Multifunctional multi-parameter physiological parameter monitor and control method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1456125A (en) * | 2002-05-09 | 2003-11-19 | 欧姆龙株式会社 | Pulse meter |
| US20060111637A1 (en) * | 2004-11-23 | 2006-05-25 | Jacober Jeffrey M | Wrist-mount blood pressure monitor with auditory feature |
| CN101703394A (en) * | 2009-11-25 | 2010-05-12 | 山东大学 | Radial pulse wave detection device |
| CN101977547A (en) * | 2008-03-19 | 2011-02-16 | 欧姆龙健康医疗事业株式会社 | Blood pressure information measurement device |
| CN104579056A (en) * | 2014-12-19 | 2015-04-29 | 永州市亿达自动化机械有限公司 | Method for compensating position error of stepper motor |
| CN205831775U (en) * | 2016-04-26 | 2016-12-28 | 王凯 | Pulse signal detector |
| CN108065922A (en) * | 2016-11-10 | 2018-05-25 | 上海交迅智能科技有限公司 | The diagnosis by feeling the pulse fixing device of Computerized intelligent |
-
2018
- 2018-08-07 CN CN201810888539.3A patent/CN109171672A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1456125A (en) * | 2002-05-09 | 2003-11-19 | 欧姆龙株式会社 | Pulse meter |
| US20060111637A1 (en) * | 2004-11-23 | 2006-05-25 | Jacober Jeffrey M | Wrist-mount blood pressure monitor with auditory feature |
| CN101977547A (en) * | 2008-03-19 | 2011-02-16 | 欧姆龙健康医疗事业株式会社 | Blood pressure information measurement device |
| CN101703394A (en) * | 2009-11-25 | 2010-05-12 | 山东大学 | Radial pulse wave detection device |
| CN104579056A (en) * | 2014-12-19 | 2015-04-29 | 永州市亿达自动化机械有限公司 | Method for compensating position error of stepper motor |
| CN205831775U (en) * | 2016-04-26 | 2016-12-28 | 王凯 | Pulse signal detector |
| CN108065922A (en) * | 2016-11-10 | 2018-05-25 | 上海交迅智能科技有限公司 | The diagnosis by feeling the pulse fixing device of Computerized intelligent |
Non-Patent Citations (4)
| Title |
|---|
| 刘瑞: "灰色预测中原始序列光滑度的提升", 《宜春学院学报》 * |
| 吴文民: "《电工技术》", 31 July 2001 * |
| 张新良; 贾丽杰: "基于输入频率模型的步进电机失步非线性补偿", 《测控技术》 * |
| 杨焕娥: "抗冲击振动环境中LCD显示屏的加固技术", 《机械管理开发》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109935327A (en) * | 2019-03-15 | 2019-06-25 | 南方医科大学顺德医院(佛山市顺德区第一人民医院) | Hypertensive patient's cardiovascular risk grading appraisal procedure based on intelligence decision support system |
| CN109935327B (en) * | 2019-03-15 | 2023-08-08 | 南方医科大学顺德医院(佛山市顺德区第一人民医院) | Cardiovascular risk layering evaluation method for hypertension patient based on intelligent decision support |
| CN112842300A (en) * | 2021-02-04 | 2021-05-28 | 深圳市奥生科技有限公司 | Multifunctional multi-parameter physiological parameter monitor and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109171672A (en) | A kind of Internal Medicine-Cardiovascular Dept. detector and detection method | |
| US9383288B2 (en) | Method and device for processing a time-dependent measurement signal | |
| US5533389A (en) | Method and system for measuring volume and controlling flow | |
| US5641892A (en) | Intravenous-line air-detection system | |
| JP2001517498A (en) | Apparatus and method for detecting air in a feed path | |
| CN1906485B (en) | Method and apparatus for ultrasonic determination of hematocrit and hemoglobin concentrations | |
| EP1085922B1 (en) | Air bubble sensor | |
| JP3210716B2 (en) | Device for controlling blood circulation in a single needle circuit | |
| CA2344716A1 (en) | Determining blood flow rate in a vessel | |
| JPH04658B2 (en) | ||
| JPH06502920A (en) | Pump controller using acoustic spectrum analysis | |
| CA2324522A1 (en) | Hemofiltration device to independently control the concentration of at least two ionic substances in the patient's internal environment | |
| CN110141722A (en) | A kind of transfusion auxiliary device | |
| Bellville et al. | Servo control of general anesthesia | |
| CN206852588U (en) | A kind of diagnostic equipment based on biological characteristic | |
| CN105439069B (en) | A kind of nozzle flow automatic regulation device and calibration method | |
| CN110251116A (en) | A kind of vascular access flow detector and its calculation method | |
| CN215386236U (en) | Medical pulse type aspirator | |
| EP3501571A1 (en) | Infusion set for measuring vital signals of a patient comprising a compliance element and a reflective element | |
| US11904094B2 (en) | Pressure and oxygen mix control for single limb non-invasive ventilation | |
| CN106668979B (en) | A kind of novel infusion pressurizes and has refrigeration side pipe administration functions device | |
| US20020167413A1 (en) | Resonant tube level sensor | |
| CN109200391A (en) | A kind of monitoring infusion terminal | |
| CN215079363U (en) | Gastroenterology pjncture needle is with liquid pump that has temperature control function | |
| CN219804530U (en) | Vibration instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190111 |