CN104287805A - Automatic artery compression haemostat and hemostasis method - Google Patents
Automatic artery compression haemostat and hemostasis method Download PDFInfo
- Publication number
- CN104287805A CN104287805A CN201410564520.5A CN201410564520A CN104287805A CN 104287805 A CN104287805 A CN 104287805A CN 201410564520 A CN201410564520 A CN 201410564520A CN 104287805 A CN104287805 A CN 104287805A
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- pressure
- tremulous pulse
- compression apparatus
- hemostasis
- automatic compression
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/132—Tourniquets
- A61B17/135—Tourniquets inflatable
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12009—Implements for ligaturing other than by clamps or clips, e.g. using a loop with a slip knot
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00017—Electrical control of surgical instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B2017/12004—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord for haemostasis, for prevention of bleeding
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/12—Surgical instruments, devices or methods, e.g. tourniquets for ligaturing or otherwise compressing tubular parts of the body, e.g. blood vessels, umbilical cord
- A61B17/12009—Implements for ligaturing other than by clamps or clips, e.g. using a loop with a slip knot
- A61B2017/12018—Elastic band ligators
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Animal Behavior & Ethology (AREA)
- Vascular Medicine (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Reproductive Health (AREA)
- General Health & Medical Sciences (AREA)
- Biophysics (AREA)
- Hematology (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Abstract
The invention discloses an automatic artery compression haemostat and a hemostasis method. The haemostat comprises a tourniquet. An airbag is arranged on the tourniquet and is connected with an air pump, a deflation valve and a pressure sensor. A pre-amplification device is connected with the output end of the pressure sensor. An output signal of the pre-amplification device is divided into two channels, one channel is directly sent to a port AD0 of the AD (analog to digital) conversion end of a single microcomputer chip, and the other channel is connected with a port AD1 of the AD conversion end of the single microcomputer chip through a pulse signal processing circuit. The single microcomputer chip controls movements of the air pump and the deflation valve through connection. The artery hemostasis with pressure measuring and timing functions is used for hemostasis, pressure as needed by compression of artery puncture points is set according to individual blood pressure values of patients, and compression time as needed by radial artery puncture points is set according to bleeding and blood coagulation time of the patients and half-life periods of anticoagulants used in operations, so that hemostasis effect of the artery puncture points is improved, comfort level of the patients is also improved, complications caused by ultrahigh or ultralow pressure are avoided, and working efficiency of medical workers is improved.
Description
Technical field
The present invention relates to medical apparatus and instruments, particularly the automatic compression apparatus of a kind of tremulous pulse and Hemostasis.
Background technology
Along with the progress of society, the change of spectrum of disease, the digestive tract active hemorrhage that the morbidity of coronary heart disease gets more and more, cancer number is growth, unknown cause fast also increases increasingly, the Diagnosis and Treat of these cases, is more and more applied to vascular interventional treatment technology.Clinical to adopt through oar (stock) arterypuncture more, carry out the treatment such as angiography, blood vessel embolism, the hemostasis by compression of postoperative oar (stock) arterypuncture point is an important nursing intervention.Clinical a lot of hospitals many employings Elastic bandage pressure dressing, sandbag pressing or oar (stock) artery hemostatic instrument stop blooding, the degree of tightness, pressurization is only with the experience of operator, the sandbag used is the every sandbag only of the unified 500g of masses, there is very large shortcoming, as moulding pressure is excessive, the blood circulation affecting limbs, the limb swelling causing patient, numb pain, skin injury, severe patient even causes art to survey the obturation of extremity vascular, causes serious complication; As moulding pressure is too low, do not reach the object of hemostasis, may cause that puncture place is hemorrhage, hematoma, false aneurysm etc.
Summary of the invention
The present invention seeks to: the one automatic compression apparatus of tremulous pulse and Hemostasis is safely and effectively provided.
Technical scheme of the present invention is:
The automatic compression apparatus of a kind of tremulous pulse, comprise tourniquet, with air bag on described tourniquet, described air bag is connected with air pump, vent valve and pressure transducer, described pressure transducer outfan connects a preamplifier, preamplifier output signal is divided into two-way, one tunnel is directly sent to the AD conversion end port AD0 of single-chip microcomputer, another road connects low pass filter, high pass filter, inverting amplifier and adder successively, adder output connects the AD conversion end port AD1 of single-chip microcomputer, the action of single-chip microcomputer connection control air pump and vent valve.
Preferably, described single-chip microcomputer is also connected with touch screen.
Preferably, described pressure transducer is connected on constant-current source, and outfan is connected to preamplifier.
Preferably, described low pass filter adopts the first amplifier to form 40 Hz low pass Butterworth filters.
Preferably, described high pass filter is made up of the electric capacity of connecting, resistance.
Preferred further, described inverting amplifier and adder are made up of the second amplifier and the 3rd amplifier respectively.
Preferred further, described single-chip microcomputer is respectively by the action of the phase inverter connected successively, metal-oxide-semiconductor control air pump and vent valve.
The Hemostasis of the automatic compression apparatus of a kind of tremulous pulse, measure patient's blood pressure, computer is according to the pressure value recorded, calculate meansigma methods, this meansigma methods is the pressure needed for the compressing of point of puncture, and according to using the half-life of anticoagulant in the clotting time and bleeding time of patient, operation, the time of the required compressing of setting arterypuncture point automatically.
Preferably, measure patient's blood pressure and adopt oscillographic method: according to blood band in decompression process, its pressure oscillation wave amplitude change envelope judges blood pressure, when cuff pressure vibration wave amplitude is maximum, the pressure of blood band is exactly the mean pressure of tremulous pulse, the systolic pressure of tremulous pulse corresponds to first flex point of amplitude envelope line, and diastolic pressure corresponds to second flex point of envelope.
Further preferred, pressure blood vessel wall is beaten and is produced oscillography ripple, and the pressure value P m that its blood vessel wall maximum place Um of beating is corresponding is tremulous pulse mean pressure.
The present invention uses the hemostasis of pressure measurement double timing oar (stock) artery hemostatic instrument, can according to the blood pressure values of individual patient, the pressure needed for compressing of setting oar (stock) arterypuncture point, and according to using the half-life of anticoagulant in the clotting time and bleeding time of patient, operation, the time of the required compressing of setting oar (stock) arterypuncture point, improve the effect of arterypuncture point hemostasis; Improve the comfort level of patient; Avoid hypertonia and too low caused complication, improve the medical safety of patient; And improve the work efficiency of medical personnel.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described:
Fig. 1 is pressure pulse figure of the present invention;
Fig. 2 is the structure principle chart of the automatic compression apparatus of tremulous pulse of the present invention;
Fig. 3 is pressure transducer and the preamplifier circuit schematic diagram of embodiments of the invention;
Fig. 4 is the pulse signal treatment circuit schematic diagram of embodiments of the invention;
Fig. 5 is the Single Chip Microcomputer (SCM) system figure of embodiments of the invention.
Detailed description of the invention
The Hemostasis of the automatic compression apparatus of disclosed tremulous pulse, first patient's blood pressure is measured, computer is according to the pressure value recorded, calculate meansigma methods, this meansigma methods is the pressure needed for the compressing of point of puncture, and according to using the half-life of anticoagulant in the clotting time and bleeding time of patient, operation, the time of the required compressing of setting arterypuncture point automatically.
Measure patient's blood pressure and adopt oscillographic method: according to blood band in decompression process, its pressure oscillation wave amplitude change envelope judges blood pressure, when cuff pressure vibration wave amplitude is maximum, the pressure of blood band is exactly the mean pressure of tremulous pulse, the systolic pressure of tremulous pulse corresponds to first flex point of amplitude envelope line, and diastolic pressure corresponds to second flex point of envelope.As shown in Figure 1, pressure blood vessel wall is beaten and is produced oscillography ripple, and the pressure value P m that its blood vessel wall maximum place Um of beating is corresponding is tremulous pulse mean pressure.
The present invention uses the hemostasis of pressure measurement double timing oar (stock) artery hemostatic instrument, can according to the blood pressure values of individual patient, the pressure needed for compressing of setting oar (stock) arterypuncture point, and according to using the half-life of anticoagulant in the clotting time and bleeding time of patient, operation, the time of the required compressing of setting oar (stock) arterypuncture point, improve the effect of arterypuncture point hemostasis; Improve the comfort level of patient; Avoid hypertonia and too low caused complication, improve the medical safety of patient; And improve the work efficiency of medical personnel.
As shown in Figure 2, the automatic compression apparatus of disclosed tremulous pulse, comprise tourniquet, with air bag on described tourniquet, described air bag is connected with air pump, vent valve and pressure transducer, described pressure transducer outfan connects a preamplifier, preamplifier output signal is divided into two-way, one tunnel is directly sent to the AD conversion end port AD0 of single-chip microcomputer, another road connects low pass filter successively, high pass filter, inverting amplifier and adder, adder output connects the AD conversion end port AD1 of single-chip microcomputer, the action of single-chip microcomputer connection control air pump and vent valve, described single-chip microcomputer is also connected with touch screen.After powering on, the first initial work of completion system.Single-chip microcomputer starts to power to air pump, allows tourniquet be inflated to rapidly more than measured's systolic pressure about about 30mmHg.Single-chip microcomputer starts by 1 road A/D the air pressure gathering tourniquet afterwards, and controls air bleeding valve aerofluxus according to the speed that tourniquet internal gas pressure declines, and makes at the uniform velocity blood pressure lowering in tourniquet (3 ~ 5mmHg/s).Meanwhile, other 1 road A/D starts to gather process every straight pulse wave.When pulse wave amplitude is maximum, the pressure of tourniquet is exactly the mean pressure of tremulous pulse.Single-chip Controlling makes tourniquet keep this pressure, and calculates pressure hold time according to the input of touch screen, and this time is oar (stock) the arterypuncture point required time of oppressing.
As shown in Figure 3, be pressure transducer of the present invention and preamplifier circuit schematic diagram, described pressure transducer is connected on constant-current source, and outfan is connected to preamplifier.Described constant-current source is made up of amplifier U1, resistance R2, R3 stabilivolt D3 and transistor Q1, export constant current to connect with pressure transducer RN, described preamplifier has amplifier U2, U3 to form, preamplifier output signal is divided into two-way, one tunnel is directly sent to the AD conversion end port AD0 of single-chip microcomputer as static blood pressure signal, another road is transferred to pulse signal treatment circuit as described in Figure 4, carries out every straight process.
As shown in Figure 4, described pulse signal treatment circuit comprises the low pass filter, high pass filter, inverting amplifier and the adder that connect successively, described low pass filter is the 40 Hz step low-pass Butterworth filters be made up of amplifier U4, amplifier U4 is connected into voltage follower, amplification is 1, signal is inputted by amplifier in-phase end, is connected into voltage-controlled voltage-type (VCVS) wave filter.Described high pass filter is the 0.4Hz single order high pass filter be made up of C3 and R10, inverting amplifier is made up of amplifier U5, adder is made up of amplifier U6, be used for carrying out pulse signal the adjustment of phase place and baseline, circuit takes anti-phase amplification connection, gain is 40 times, and the AD conversion end port AD1 end that the pulse oscillator signal be amplified and blood pressure alternating component deliver to single-chip microcomputer as pulse wave signal processes.
Above-mentioned amplifier U1-U6 all adopts TL084 operational amplifier.
As shown in Figure 5, be Single Chip Microcomputer (SCM) system figure, described single-chip microcomputer controls the action of air pump by the phase inverter U7, the metal-oxide-semiconductor Q2 that connect successively, is controlled and the action of vent valve by phase inverter U8, metal-oxide-semiconductor Q3.
Claims (10)
1. the automatic compression apparatus of tremulous pulse, comprise tourniquet, it is characterized in that: with air bag on described tourniquet, described air bag is connected with air pump, vent valve and pressure transducer, described pressure transducer outfan connects a preamplifier, preamplifier output signal is divided into two-way, one tunnel is directly sent to the AD conversion end port AD0 of single-chip microcomputer, another road connects low pass filter successively, high pass filter, inverting amplifier and adder, adder output connects the AD conversion end port AD1 of single-chip microcomputer, the action of single-chip microcomputer connection control air pump and vent valve.
2. the automatic compression apparatus of tremulous pulse according to claim 1, is characterized in that: described single-chip microcomputer is also connected with touch screen.
3. the automatic compression apparatus of tremulous pulse according to claim 2, is characterized in that: described pressure transducer is connected on constant-current source, and outfan is connected to preamplifier.
4. the automatic compression apparatus of tremulous pulse according to claim 2, is characterized in that: described low pass filter adopts the first amplifier to form 40 Hz low pass Butterworth filters.
5. the automatic compression apparatus of tremulous pulse according to claim 2, is characterized in that: described high pass filter is made up of the electric capacity of connecting, resistance.
6. the automatic compression apparatus of tremulous pulse according to claim 2, is characterized in that: described inverting amplifier and adder are made up of the second amplifier and the 3rd amplifier respectively.
7. the automatic compression apparatus of tremulous pulse according to claim 1, is characterized in that: described single-chip microcomputer is respectively by the action of the phase inverter connected successively, metal-oxide-semiconductor control air pump and vent valve.
8. the Hemostasis of the automatic compression apparatus of tremulous pulse, it is characterized in that: measure patient's blood pressure, computer is according to the pressure value recorded, calculate meansigma methods, this meansigma methods is the pressure needed for the compressing of point of puncture, and according to using the half-life of anticoagulant in the clotting time and bleeding time of patient, operation, the time of the required compressing of setting arterypuncture point automatically.
9. the Hemostasis of the automatic compression apparatus of tremulous pulse according to claim 8, it is characterized in that: measure patient's blood pressure and adopt oscillographic method: according to blood band in decompression process, its pressure oscillation wave amplitude change envelope judges blood pressure, when cuff pressure vibration wave amplitude is maximum, the pressure of blood band is exactly the mean pressure of tremulous pulse, the systolic pressure of tremulous pulse corresponds to first flex point of amplitude envelope line, and diastolic pressure corresponds to second flex point of envelope.
10. the Hemostasis of the automatic compression apparatus of tremulous pulse according to claim 9, is characterized in that: pressure blood vessel wall is beaten and produced oscillography ripple, and the pressure value P m that its blood vessel wall maximum place Um of beating is corresponding is tremulous pulse mean pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410564520.5A CN104287805A (en) | 2014-10-22 | 2014-10-22 | Automatic artery compression haemostat and hemostasis method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410564520.5A CN104287805A (en) | 2014-10-22 | 2014-10-22 | Automatic artery compression haemostat and hemostasis method |
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| CN104287805A true CN104287805A (en) | 2015-01-21 |
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| CN201410564520.5A Pending CN104287805A (en) | 2014-10-22 | 2014-10-22 | Automatic artery compression haemostat and hemostasis method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105193473A (en) * | 2015-10-15 | 2015-12-30 | 上海艾络格电子技术有限公司 | Airbag type blood occlusion instrument |
| CN109770989A (en) * | 2019-01-24 | 2019-05-21 | 中国人民解放军南部战区总医院 | A kind of intelligent vapour-pressure type tourniquet and its control method |
| CN110236635A (en) * | 2019-05-31 | 2019-09-17 | 中国科学院深圳先进技术研究院 | Tourniquet and Hemostasis |
| CN110327093A (en) * | 2019-08-22 | 2019-10-15 | 德阳市人民医院 | A kind of artery compression hemostat |
| CN112057064A (en) * | 2020-09-03 | 2020-12-11 | 武汉拓思瑞医疗科技有限公司 | Detection mode of limb occlusion pressure and application method thereof |
| CN113729828A (en) * | 2021-09-17 | 2021-12-03 | 同济大学 | Feedback type automatic hemostasis system |
| EP3791781A4 (en) * | 2018-05-10 | 2022-01-05 | Techno Science Co., Ltd. | Hemostasis aid and tourniquet |
| WO2022050310A1 (en) * | 2020-09-03 | 2022-03-10 | テルモ株式会社 | Program, information processing device, information processing method and model generation method |
| WO2023221675A1 (en) * | 2022-05-19 | 2023-11-23 | 赵圣刚 | Compressor |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105193473A (en) * | 2015-10-15 | 2015-12-30 | 上海艾络格电子技术有限公司 | Airbag type blood occlusion instrument |
| EP3791781A4 (en) * | 2018-05-10 | 2022-01-05 | Techno Science Co., Ltd. | Hemostasis aid and tourniquet |
| CN109770989A (en) * | 2019-01-24 | 2019-05-21 | 中国人民解放军南部战区总医院 | A kind of intelligent vapour-pressure type tourniquet and its control method |
| CN110236635A (en) * | 2019-05-31 | 2019-09-17 | 中国科学院深圳先进技术研究院 | Tourniquet and Hemostasis |
| CN110327093A (en) * | 2019-08-22 | 2019-10-15 | 德阳市人民医院 | A kind of artery compression hemostat |
| CN112057064A (en) * | 2020-09-03 | 2020-12-11 | 武汉拓思瑞医疗科技有限公司 | Detection mode of limb occlusion pressure and application method thereof |
| WO2022050310A1 (en) * | 2020-09-03 | 2022-03-10 | テルモ株式会社 | Program, information processing device, information processing method and model generation method |
| CN113729828A (en) * | 2021-09-17 | 2021-12-03 | 同济大学 | Feedback type automatic hemostasis system |
| CN113729828B (en) * | 2021-09-17 | 2023-08-29 | 同济大学 | Feedback type automatic hemostatic system |
| WO2023221675A1 (en) * | 2022-05-19 | 2023-11-23 | 赵圣刚 | Compressor |
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Application publication date: 20150121 |