CN107496002B - A kind of radial artery hemostat - Google Patents
A kind of radial artery hemostat Download PDFInfo
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- CN107496002B CN107496002B CN201710851290.4A CN201710851290A CN107496002B CN 107496002 B CN107496002 B CN 107496002B CN 201710851290 A CN201710851290 A CN 201710851290A CN 107496002 B CN107496002 B CN 107496002B
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- solenoid valve
- voltage
- air pump
- analog
- air bag
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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
-
- 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
- A61B17/1322—Tourniquets comprising a flexible encircling member
- A61B17/1325—Tourniquets comprising a flexible encircling member with means for applying local pressure
-
- 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
- A61B17/1355—Automated control means therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/06—Measuring instruments not otherwise provided for
-
- 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
Abstract
The invention proposes a kind of radial artery hemostats, comprising: oppression department, wrist strap and control box；Oppression department includes pressing plate and rectangular air bag, for oppressing cutting part；Wrist strap includes external interlayer and the air sac belt that is arranged in interlayer, for oppression department to be fixed on incision site；Controlling box includes the first adjustment portion and the second adjustment portion, and the first adjustment portion controls the inflation/deflation of air sac belt, and the second adjustment portion controls rectangular air bag inflation/deflation.Radial artery hemostat of the invention can be realized the preliminary adjusting to pressing plate, and contraposition is accurate, convenient to wear；It can realize accurate adjustment of the oppression department to notch oppressive force according to wrist posture, realize the automatic adjustment of oppressive force during wearing；Oppression department is adjusted to the oppressive force of notch according to bleeding area, realizes the further accurate adjustment to notch oppressive force.
Description
Technical field
The present invention relates to medical instruments field, in particular to a kind of radial artery hemostat.
Background technique
With the raising of living condition and the change of working method, the disease incidence of coronary heart disease is in increased trend year by year.Through
The intracavitary art that formed of percutaneous transluminal coronary is to treat the main method of coronary heart disease.
Currently, the method for clinically mostly using radial artery puncturing, needed after puncture doctor using haemostat to radial artery into
Whereabouts blood.Existing artery compression hemostat mainly by spiral handle component, pressing plate, pedestal, form from bonded non-woven fabrics bandage, use
Stop blooding in artery-compression.But existing artery compression hemostat fixed effect is bad, and oppressive force is not easy to control, mainly by patient and
By exchanging come modulating hemostasis device oppressive force size, oppressive force little Yi bleeding, oppressive force will lead to greatly Radial artery occlusion, makes doctor
At patient's numbness of fingers or pain, or even the secondary injury of radial artery is caused, increases wound bleeding area.
Therefore, how a kind of radial artery hemostat that can automatically adjust oppressive force according to patient's self-condition is provided, is
Urgent problem to be solved at present.
Summary of the invention
The present invention proposes a kind of radial artery hemostat, solves that existing artery compression hemostat oppressive force is nonadjustable to ask
Topic.
The technical scheme of the present invention is realized as follows:
A kind of radial artery hemostat, comprising: oppression department, wrist strap and control box；Oppression department includes pressing plate and rectangular air bag, is used
It is oppressed in cutting part；Wrist strap includes external interlayer and the air sac belt that is arranged in interlayer, for fixing oppression department
In incision site；Control box include the first adjustment portion and the second adjustment portion, the first adjustment portion control air sac belt inflation/deflation, second
Adjustment portion controls rectangular air bag inflation/deflation；It is whole by the length and oppression department of the length-adjustment buckle adjusting wrist strap on wrist strap first
Body position and oppressive force；Then the first adjustment portion adjusts the elasticity of wrist strap according to wrist posture, and then realizes oppression department to cutting
The accurate adjustment of mouth oppressive force；Second adjustment portion adjusts oppression department to the oppressive force of notch according to bleeding area, realizes and oppresses notch
The further accurate adjustment of power；
Intermediate course is set inside wrist strap, strip air sac belt is clamped in intermediate course, air sac belt passes through W character form structure
Disk is located at wrist strap intermediate course, and by W character form structure, wrist strap the back of the hand position disk is equipped with four air sac belts；
Oppression department includes square shell, and square shell is top closed, bottom opening, and pressing plate, pressing plate is arranged at bottom opening
It is made of transparent silica gel, length and width dimensions are set as fitting closely with square shell inner sidewall, with a thickness of square shell height
Half, pressing plate is oppressed and is tightened in incision site, and with wrist strap；For oppressing notch, pressing plate upper surface is solid for pressing plate lower surface
A fixed connecting rod, the length of the connecting rod are the half of square shell height, and the connecting rod other end is fixed on a sheet metal,
The length and width dimensions of the sheet metal are identical as pressing plate, also fit closely with square shell inner wall, the top of sheet metal and square shell
Between rectangular air bag is set, when rectangular inflated condition, length and width dimensions are identical as pressing plate, and height is the 1/ of platen elevation
3~2/3, rectangular air bag upper surface and square shell inside top face are pasted, and rectangular air bag lower surface is mutually glued with the sheet metal
Patch；
In first adjustment portion include gesture detection means, first pressurization air pump, the first solenoid valve, second solenoid valve,
First piezoelectric transducer, comparator；The air inlet of air sac belt is connect by second solenoid valve with the first pressurization air pump, for filling
Gas, the gas outlet of air sac belt is connect with the first solenoid valve, for deflating；
The gesture detection means include shell, and six faces of shell are square, and are internally provided with the first piezoelectric sensing
The top and bottom of device and weight block, weight block are square, and the edge of the square and the medial surface of shell fit closely, weight
The bottom surface of square shell, the first piezoelectric transducer is arranged in the half with a thickness of shell of code block, the first piezoelectric transducer
According to the pressure output voltage signal of weight block；
Second adjustment portion includes infrared camera, image processor, the second piezoelectric transducer, third analog-digital converter,
Two single-chip microcontrollers, the second pressurization air pump, third solenoid valve, the 4th solenoid valve, infrared camera are arranged in pressing plate rear, infrared photography
On the left of head setting connecting rod or right side, acquires the bleeding area of notch；The image that image processor acquires infrared camera
In bleeding area extract, export bleeding area value signal；Second piezoelectric transducer is arranged in metal plate and rectangular air bag
Between, the oppressive force that is subject to for acquiring pressing plate；Second adjustment portion further includes second singlechip, since described image processor is defeated
Bleeding area value out is digital signal, and second singlechip directly receives the bleeding area value of described image processor output, and
The pressure signal of the second piezoelectric transducer output is received by third analog-digital converter；Infrared camera is according to prefixed time interval
Bleeding area image is acquired, bleeding area value is compared second singlechip twice by front and back, according to the rectangular air bag of Ratio control
Inflation/deflation；When the ratio of front and back bleeding area value twice is less than 1, illustrate that bleeding area expands, single-chip microcontroller is according to Ratio control
The aeration quantity of second pressurization air pump, the 4th solenoid valve opening the second pressurization air pump and being connected with rectangular air bag air inlet lead to
Cross the second pressurization air pump square shaped air bag inflation；When ratio is equal to 1 or greater than 1, illustrates that bleeding area does not expand, second is single
Piece machine opens the third solenoid valve being connected with rectangular air bag gas outlet, square shaped according to the discharge quantity of the rectangular air bag of Ratio control
Air bag is deflated.
Optionally, first adjustment portion includes comparator, and the positive input of comparator is connected to the first piezoelectric sensing
The output end of device, the negative input of comparator are connected to reference voltage, and the size of reference voltage is according to the first piezoelectric transducer
The grade of output voltage is configured, and reference voltage is it of the first piezoelectric transducer maximum output voltage and minimum output voltage
Between an intermediate value, which is not limited to the intermediate value of maximum output voltage and minimum output voltage；Comparator
Output signal be connected respectively to the first pressurization air pump, second solenoid valve, the first solenoid valve, for control first pressurization air pump and
Second solenoid valve and the first solenoid valve open or close；Wherein, the first pressurization air pump and second solenoid valve are negative voltage control
Logic processed, the first solenoid valve are positive voltage control logic, and the first pressurization air pump and second solenoid valve receive enabled when negative voltage, root
According to the inflationtime of size control the first pressurization air pump and second solenoid valve of negative voltage, the first solenoid valve makes when receiving positive voltage
Can, the deflation time of solenoid valve is controlled according to the size of positive voltage, and then pass through the first pressurization air pump of control and second solenoid valve
Inflationtime and the first solenoid valve deflation time realize air sac belt in tolerance control；
When the voltage signal of first piezoelectric transducer output is greater than reference voltage, the comparator output positive voltage letter
Number, since the first pressurization air pump and second solenoid valve are negative voltage control logic, the first solenoid valve is positive voltage control logic, institute
It states the first pressurization air pump and second solenoid valve does not enable, first solenoid valve is enabled, air sac belt exhaust；When the piezoelectric sensing
The voltage signal of device output is less than reference voltage, and the comparator exports negative voltage signal, and first solenoid valve does not enable, institute
It states the first pressurization air pump and second solenoid valve is enabled, air sac belt inflation.
Optionally, the negative voltage control logic of the first pressurization air pump is realized by reversed follower, reversed follower
Negative voltage transition by comparator output is an equal amount of positive voltage, is then converted to digital electricity by the first analog-digital converter
Pressure value, is input to first singlechip；Since the first solenoid valve is positive voltage control logic, the positive voltage of comparator output passes through the
Two analog-digital converters are converted to digital voltage value, are input to first singlechip；First analog-digital converter and the second analog-digital converter
All it is that positive voltage is effective, analog-to-digital conversion only is carried out to positive voltage, when comparator exports positive voltage, the first analog-digital converter is received
It is negative voltage, received the second analog-digital converter is positive voltage, and the second analog-digital converter exports digital voltage value, and single-chip microcontroller is corresponding
The input port of second analog-digital converter receives the digital voltage value, and by internal arithmetic, single-chip microcontroller is from itself and the first solenoid valve
Corresponding output port exports high level signal, and the first solenoid valve is enabled, and is vented to air sac belt, and first singlechip and the
One pressurization air pump and second solenoid valve corresponding output port output low level or high-impedance state signal, the first pressurization air pump and
Second solenoid valve does not enable；When comparator exports negative voltage, received the first analog-digital converter is positive voltage, and the second modulus turns
Received parallel operation is negative voltage, and the first analog-digital converter exports digital voltage value, corresponding first analog-digital converter of first singlechip
Input port receive the digital voltage value, by internal arithmetic, first singlechip is from itself and the first pressurization air pump and the second electricity
The corresponding output port of magnet valve exports high level signal, and the first pressurization air pump and second solenoid valve are enabled, filled to air sac belt
Gas, and single-chip microcontroller output port output low level corresponding with the first solenoid valve or high-impedance state signal, the first solenoid valve is not
It is enabled.
Optionally, the single-chip microcontroller is stored with digital voltage value table and high level time table, the number in digital voltage value table
Word voltage value is corresponding with the high level time on high level time table, and first singlechip receives the first analog-digital converter or second
The digital voltage value is carried out table lookup operation, finds corresponding high level by the digital voltage value of analog-digital converter output
Time exports high level signal to the first pressurization air pump, second solenoid valve or the first solenoid valve, the height from corresponding output port
The time of level signal is obtained by tabling look-up；The enabled first pressurization air pump of high level signal, second solenoid valve or the first electricity
Magnet valve, when high level time arrives, high level signal becomes low level or high-impedance state, the first pressurization air pump, second solenoid valve
Or first solenoid valve do not enable, stop working.
Optionally, during the inflation of square shaped air bag, when pressure signal is greater than preset warning value, second singlechip
The 4th solenoid valve closing the second pressurization air pump and being connected with rectangular air bag air inlet stops the inflation behaviour of square shaped air bag
Make.
Optionally, the center at the pressing plate rear is additionally provided with green LED lamp, for aligning with notch.
The beneficial effects of the present invention are:
(1) real by the length and oppression department integral position and oppressive force of the length-adjustment buckle adjusting wrist strap on wrist strap
Now to the preliminary adjusting of pressing plate, contraposition is accurate, convenient to wear；
(2) according to wrist posture, the elasticity of wrist strap is adjusted by the first adjustment portion, and then realizes oppression department to notch pressure
The accurate adjustment for compeling power realizes the automatic adjustment of oppressive force during wearing；
(3) second adjustment portions adjust oppression department to the oppressive force of notch according to bleeding area, realize to notch oppressive force
Further accurate adjustment.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of overall structure diagram of radial artery hemostat of the present invention；
Fig. 2 is the schematic diagram of internal structure of wrist strap of the invention；
Fig. 3 is the structural schematic diagram of gesture detection means of the invention；
Fig. 4 is the schematic illustration of the first adjustment portion of the invention；
Fig. 5 is the schematic diagram of a specific embodiment of the first adjustment portion of the invention；
Fig. 6 is the internal arithmetic schematic diagram of first singlechip of the invention；
Fig. 7 is the schematic illustration of the second adjustment portion of the invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The invention proposes a kind of radial artery hemostats, are used for cardiac stent hand post-operative compression arteriotomy, can basis
Bleeding area, patient wrist posture automatically adjust haemostat oppressive force.
As shown in Figure 1, radial artery hemostat of the invention includes oppression department 10, wrist strap 20 and control box 30.Oppression department 10
Including pressing plate 14 and rectangular air bag 17, for oppressing cutting part.Wrist strap 20 includes external interlayer and is arranged in interlayer
In air sac belt, for oppression department 10 to be fixed on incision site.It controls box 30 and includes the first adjustment portion and the second adjustment portion, the
One adjustment portion controls the inflation/deflation of air sac belt, and the second adjustment portion controls rectangular air bag inflation/deflation.
Radial artery hemostat of the invention adjusts the length and compressing of wrist strap by the length-adjustment buckle on wrist strap first
Portion's integral position and oppressive force；Then the elasticity of wrist strap is adjusted according to wrist posture by the first adjustment portion, and then realizes pressure
Compel accurate adjustment of the portion to notch oppressive force；Second adjustment portion adjusts oppression department to the oppressive force of notch, realization pair according to bleeding area
The further accurate adjustment of notch oppressive force.
Fig. 1 shows the overall structure diagram of radial artery hemostat of the invention, as shown in Figure 1, the base of oppression department 10
11 both ends of seat open up strip notch 12, and 12 length of notch and wrist strap 20 are of same size, and wrist strap 20 is across notch 12, and the one of wrist strap 20
End sews redundance on wrist strap after notch 12, in embodiment shown in Fig. 1, fixes for tightening redundance
Sewing unit 13 be located at wrist strap right part, length-adjustment buckle, such as magic tape is arranged in the other end of wrist strap 20, and wrist strap is passed through
Extra part is tightened and is fixed by length-adjustment buckle after notch 12, and in embodiment shown in Fig. 1, length-adjustment buckle 19 is located at
On the left of wrist strap.
In use, oppression department 10 is first pressed in incision site, then wristband 20, and pass through length-adjustment buckle coarse adjustment wrist
Strip length compresses notch.
Existing haemostat is usually above structure, after being fixed by length-adjustment buckle, is controlled by spiral handle component
The pressure of pressing plate realizes more accurate adjust to the oppressive force of patients surgery notch.
It include the first adjustment portion and the second adjustment portion in control box of the invention, the first adjustment portion controls gas in wrist strap interlayer
Capsule band 21 it is inflatable and deflatable, adjust the elasticity of wrist strap, realize the accurate adjustment of pressing plate oppressive force, the second adjustment portion controls oppression department
In rectangular air bag it is inflatable and deflatable, which acts directly on pressing plate, realizes the tune of the oppressive force higher precision of pressing plate
Section.
As shown in Fig. 2, intermediate course is arranged inside wrist strap 20, strip air sac belt 21 is clamped in intermediate course, the reality
It applies in example, wrist strap left side is length-adjusting portion without air bag band part 22, this partially passes through chassis left side notch and passes through length
Adjusting buckle tightening is fixed, and wrist strap right side is sewing end without air bag band part 23, this partially passes through base right side notch and sews solid
It is fixed.Air sac belt 21 is located at wrist strap intermediate course by W character form structure disk, and the air inlet and air outlet setting of air sac belt 21 is sewing
End 23, by W character form structure, wrist strap the back of the hand position disk is equipped with four air sac belts, and when inflation/deflation can guarantee wrist strap uniform force.
As shown in figure 4, in the first adjustment portion include gesture detection means, first pressurization air pump 322, the first solenoid valve 323,
Second solenoid valve 324, the first piezoelectric transducer 3242, comparator 3245.The air inlet of air sac belt 21 passes through second solenoid valve 324
It is connect with the first pressurization air pump 322, for inflating, the gas outlet of air sac belt 21 is connect with the first solenoid valve 323, for deflating.
The setting of first adjustment portion is in control box, as shown in Figure 1, control box 30 is fixed on the junction of pedestal Yu wrist strap sewing end, pressure
Compel the middle position that portion 10 is located at pedestal 11, box 30 is controlled between oppression department 10 and wrist strap sewing end, in wrist strap sewing end
The air inlet and air outlet at place, air sac belt 21 are extended to inside control box 30 by adapter and gas-guide tube, electric with second respectively
Magnet valve and the first solenoid valve are connected.
As shown in figure 3, the gesture detection means include shell 3241, six faces of shell 3241 are square, internal
It is provided with the first piezoelectric transducer 3242 and weight block 3243, the top and bottom of weight block 3243 are square, the square
The medial surface at edge and shell 3241 fit closely, the half with a thickness of shell of weight block 3243, the first piezoelectricity passes
The bottom surface of square shell is arranged in sensor 3242, and the first piezoelectric transducer 3242 is believed according to the pressure output voltage of weight block 3243
Number.
When wearer tentatively regulates oppression department pressing in incision, and by the length-adjustment buckle or magic tape of wrist strap
After elasticity, the relative position for controlling box and human body is fixed, therefore, the relative position of gesture detection means and human arm
Be it is fixed, gesture detection means are specifically configured to: when human body sitting or when standing, arm droop, weight block 3243 is
Vertical state, weight block 3243 are fully pressed against the upper surface of the first piezoelectric transducer 3242, the output of the first piezoelectric transducer 3242
Maximum voltage value；When human body lies low, arm is horizontal positioned, and weight block 3243 is horizontality, and weight block 3243 is pressed first
Electric transducer 3242 does not squeeze, and the first piezoelectric transducer exports minimum amount of voltage that；When human arm is in other states, counterweight
Block 3243 and the first piezoelectric transducer 3242 are squeezed at certain inclination angle, and piezoelectric transducer exports between maximum value and minimum value
Between be worth.In this way, passing through the size of the first piezoelectric transducer output voltage signal, so that it may obtain the posture of human arm.
The voltage signal that first adjustment portion is exported according to gesture detection means is to the first pressurization air pump, the first solenoid valve and the
Two solenoid valves carry out opening or closing control, realize the control of tolerance in air sac belt, and then realize the fine tuning of wrist strap elasticity, carefully
Tune process will describe in detail below.
As shown in figure 4, the first adjustment portion includes comparator 3245, the positive input of comparator 3245 is connected to the first pressure
The output end of electric transducer 3242, the negative input of comparator are connected to reference voltage, and the size of reference voltage is according to first
The grade of piezoelectric transducer output voltage is configured, and reference voltage is that the first piezoelectric transducer maximum output voltage and minimum are defeated
An intermediate value between voltage, the intermediate value are not limited in maximum output voltage and minimum output voltage out
Value.The output signal of comparator 3245 is connected respectively to the first pressurization air pump 322, second solenoid valve 324, the first solenoid valve 323,
For controlling opening or closing for the first pressurization air pump 322 and second solenoid valve 324 and the first solenoid valve 323.Wherein, first
Air pump 322 and the second solenoid valve 324 of pressurizeing are negative voltage control logic, and the first solenoid valve 323 is positive voltage control logic, i.e., the
One pressurization air pump 322 and second solenoid valve 324 enable when receiving negative voltage, according to the size of negative voltage control the first pressurization air pump
322 and second solenoid valve 324 inflationtime, the first solenoid valve 323 receive it is enabled when positive voltage, according to the size control of positive voltage
The deflation time of solenoid valve processed, and then pass through the inflationtime and the of control the first pressurization air pump 322 and second solenoid valve 324
The deflation time of one solenoid valve 323 realizes the control of tolerance in air sac belt 21.
When the voltage signal of first piezoelectric transducer 3242 output is greater than reference voltage, the comparator 3245 is exported
Positive voltage signal, since the first pressurization air pump 322 and second solenoid valve 324 are negative voltage control logic, the first solenoid valve 323 is
Positive voltage control logic, therefore, the first pressurization air pump 322 and second solenoid valve 324 do not enable, first solenoid valve
323 is enabled, and air sac belt 21 is vented；When the voltage signal of the piezoelectric transducer 3242 output is less than reference voltage, the comparison
Device 3245 exports negative voltage signal, and first solenoid valve 323 does not enable, the first pressurization air pump 322 and second solenoid valve
324 is enabled, and air sac belt 21 is inflated.
Be described in detail in conjunction with inflation/deflation process of the Fig. 3 and Fig. 4 to air sac belt: when wearer's sitting or it is stand-type when,
Wearer's arm is vertical, and radial artery is in maximum expanded state, and the weight block 3243 is pressed in first piezoelectric transducer
3242 upper surfaces, the first piezoelectric transducer 3242 export maximum voltage, the voltage letter that first piezoelectric transducer 3242 exports
Number it is greater than reference voltage, the comparator 3245 exports positive voltage signal, the first pressurization air pump 322 and second solenoid valve
324 do not enable, and first solenoid valve 323 is enabled, and air sac belt 21 is vented, and is maximum capacity, because of sitting or standing
When, wearer's wrist circumference is in maximum rating, and the gas in air sac belt is discharged, can alleviate the tensity of wrist, prevent
Degree compressing damages radial artery；When wearer lies low, wrist is horizontal positioned, the weight block 3243 and first pressure
Electric transducer 3242 does not squeeze, and the first piezoelectric transducer 3242 exports minimum voltage, and first piezoelectric transducer 3242 exports
Voltage signal be less than reference voltage, the comparator 3245 exports negative voltage signal, and first solenoid valve 323 does not enable,
The first pressurization air pump 322 and second solenoid valve 324 are enabled, and air sac belt 21 is inflated, and is maximum aeration quantity, because lying low
When, wearer's wrist circumference is in minimum state, and air bag is inflated, and the tightness degree of pressing plate and skin attachement can be enhanced, and prevents from pressing
Compel that bleeding area is not caused tightly to expand；When wearer is in other postures, the weight block 3243 and the piezoelectric transducer
3242 with the extruding of certain inclination angle, and piezoelectric transducer 3242 exports the median between maxima and minima, according to piezoelectric sensing
The inflation/deflation of the relationship control air sac belt of the voltage signal and reference voltage of device, realizes the automatic adjustment of wrist strap elasticity.
Postoperative patient is all to wear radial artery hemostat with arm level state, therefore, length is first passed through after wearing
Adjusting buckle adjusts the elasticity of wrist strap, and due to lying low at this time, the first pressurization air pump inflates air sac belt, and wrist strap is tightened；Work as trouble
When person's standing or sitting, arm naturally droops state, and the first solenoid valve deflates to air sac belt, wrist strap is loosened, and guarantees patient
Comfortable wearing prevents blood circulation unsmooth.
Fig. 5 shows a specific embodiment of the first adjustment portion, in the embodiment, the negative electricity of the first pressurization air pump 322
Control logic is pressed to realize by reversed follower 3246, the negative voltage transition that comparator 3245 exports is by reversed follower 3246
Then an equal amount of positive voltage is converted to digital voltage value by the first analog-digital converter 3247, is input to first singlechip
3249；Since the first solenoid valve 323 is positive voltage control logic, the positive voltage that comparator 3245 exports passes through the second mould
Number converter 3248 is converted to digital voltage value, is input to single-chip microcontroller 3249；Above-mentioned first analog-digital converter 3247 and the second mould
Number converter 3248 is all that positive voltage is effective, i.e., only carries out analog-to-digital conversion to positive voltage, and therefore, comparator 3245 exports positive voltage
When, it is negative voltage that the first analog-digital converter 3247 is received, and received the second analog-digital converter 3248 is positive voltage, the second modulus
Converter exports digital voltage value, and the input port of corresponding second analog-digital converter of single-chip microcontroller receives the digital voltage value, passes through
Internal arithmetic, single-chip microcontroller exports high level signal from its output port corresponding with the first solenoid valve, by the first solenoid valve 323
It is enabled, air sac belt 21 is vented, and single-chip microcontroller output port corresponding with the first pressurization air pump 322 and second solenoid valve 324
Low level or high-impedance state signal are exported, the first pressurization air pump 322 and second solenoid valve 324 do not enable；When comparator 3245 is defeated
Out when negative voltage, it is positive voltage that the first analog-digital converter 3247 is received, and received the second analog-digital converter 3248 is negative voltage,
First analog-digital converter exports digital voltage value, and the input port of corresponding first analog-digital converter of single-chip microcontroller receives the digital voltage
Value, by internal arithmetic, single-chip microcontroller is defeated from its output port corresponding with the first pressurization air pump 322 and second solenoid valve 324
First pressurization air pump 322 and second solenoid valve 324 are enabled, are inflated to air sac belt 21 by high level signal out, and single-chip microcontroller and the
The corresponding output port output low level of one solenoid valve or high-impedance state signal, the first solenoid valve 323 do not enable.
Single-chip microcontroller internal arithmetic process is as shown in fig. 6, when being stored with digital voltage value table and high level in single-chip microcontroller 3249
Between table, the digital voltage value in digital voltage value table is corresponding with the high level time on high level time table, and therefore, first is single
Piece machine 3249 receives the digital voltage value of the first analog-digital converter 3247 or the output of the second analog-digital converter 3248, by number electricity
Pressure value carry out table lookup operation, find corresponding high level time, from corresponding output port export high level signal to
First pressurization air pump, second solenoid valve or the first solenoid valve, the time of the high level signal are by above-mentioned acquisition of tabling look-up.High electricity
The enabled first pressurization air pump of ordinary mail number, second solenoid valve or the first solenoid valve, when high level time arrives, high level signal becomes
Perhaps the pressurization of high-impedance state first air pump, second solenoid valve or the first solenoid valve do not enable low level, stop working.
Radial artery hemostat of the invention identifies patient's arm posture by the first adjustment portion and adjusts wrist strap elasticity, phase
It is more comfortable than in existing compression apparatus.
For the pressure of further accurate adjustment pressing plate, notch bleeding area is controlled, improves haemostatic effect, it is of the invention
Radial artery hemostat further includes the second adjustment portion, and the second adjustment portion is for being finely adjusted the oppressive force of pressing plate.
As shown in Figure 1, oppression department 10 of the invention includes square shell, square shell is top closed, bottom opening, bottom
Pressing plate 14 is arranged in opening, and pressing plate 14 is made of transparent silica gel, and length and width dimensions are set as closely pasting with square shell inner sidewall
It closes, with a thickness of the half of square shell height, for example, the transparent silicone pad that pressing plate is 2cm wide, 3cm long, 1cm are thick, by pressing plate
14 compressings are tightened in incision site, and with wrist strap.Thickness of compressive plate is the half of square shell, and pressing plate lower surface is cut for oppressing
Mouthful, a connecting rod 15 is fixed in pressing plate upper surface, and the length of the connecting rod is the half of square shell height, and the connecting rod other end is solid
It is scheduled on a sheet metal 16, the length and width dimensions of the sheet metal are identical as pressing plate, also fit closely with square shell inner wall, metal
Rectangular air bag 17 is set between piece and the top of square shell, when rectangular inflated condition, length and width dimensions and 14 phase of pressing plate
Together, height is the 1/3~2/3 of platen elevation, and rectangular 17 upper surface of air bag and square shell inside top face are pasted, rectangular gas
It is pasted with 16 phase of sheet metal capsule lower surface.
When rectangular air bag 17 is in abundant deflation status, sheet metal 16 is fitted at the top of square shell, pressing plate 14 and connection
The thickness of bar 15 is exactly equal to the height of square shell, in addition the thickness of sheet metal 16 and rectangular air bag, pressing plate 14 is slightly prominent
The bottom of square shell, pressing plate 14 can be used for oppressing notch.When rectangular air bag is in inflated condition, pressing plate 14 continues to evagination
It rises, when rectangular air bag is in fully aerated state, pressing plate 14 protrudes 1/3~2/3 platen elevation of square shell, but not exclusively prominent
Out, can guarantee that pressing plate is firm in this way to be mounted on inside square shell.
As shown in fig. 7, the second adjustment portion includes infrared camera 4242, image processor 4243, the second piezoelectric transducer
4244, third analog-digital converter 4245, second singlechip 4249, second pressurization air pump 422, third solenoid valve 423, the 4th electromagnetism
Valve 424, for the setting of infrared camera 4242 at pressing plate rear, which is arranged 15 left and right sides of connecting rod shown in Fig. 1,
Because pressing plate is made of transparent silica gel material, infrared camera can effectively acquire the bleeding area of notch, without by
The influence of pressing plate.The bleeding area in image that image processor 4243 acquires infrared camera extracts, and exports bleeding
Area value signal.Second adjustment portion of the invention further includes the second piezoelectric transducer 4244, the setting of the second piezoelectric transducer 4244
Between metal plate 16 and rectangular air bag 17, the oppressive force being subject to for acquiring pressing plate, the oppressive force include wrist strap oppressive force and
Oppressive force of the rectangular air bag to pressing plate.
Second adjustment portion further includes second singlechip 4249, the bleeding area value exported due to described image processor 4243
It is digital signal, therefore, second singlechip 4249 directly receives the bleeding area value of described image processor output, and passes through mould
Number converter 4245 receives the pressure signal of the second piezoelectric transducer 4244 output.Infrared camera is adopted according to prefixed time interval
Collect bleeding area image, bleeding area value is compared second singlechip twice by front and back, according to the rectangular air bag of Ratio control
Inflation/deflation, and then realize the control to pressing plate oppressive force.When the ratio of front and back bleeding area value twice is less than 1, illustrate bleeding face
Product expands, and therefore, single-chip microcontroller opens the second pressurization air pump 422 according to the aeration quantity of ratio size control the second pressurization air pump 422
And the 4th solenoid valve 424 being connected with rectangular air bag air inlet, pass through the second pressurization 422 square shaped air bag of air pump inflation；When
Ratio is equal to 1 or greater than 1, illustrates that bleeding area does not expand, and second singlechip controls rectangular air bag 423 according to ratio size
Discharge quantity, open the third solenoid valve 423 that is connected with rectangular 17 gas outlet of air bag, the deflation of square shaped air bag.
During the inflation of above-mentioned square shaped air bag, when pressure signal is greater than preset warning value, second singlechip is closed
The 4th solenoid valve 424 for closing the second pressurization air pump 422 and being connected with rectangular air bag air inlet stops the inflation of square shaped air bag
Operation, prevents from causing compression to patient vessel.
Preferably, in order to improve the compressing accuracy of radial artery hemostat of the invention, in pressing plate rear of the invention
The heart is additionally provided with green LED lamp, for aligning with notch.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of radial artery hemostat characterized by comprising oppression department, wrist strap and control box；Oppression department includes pressing plate and side
Shape air bag, for oppressing cutting part；Wrist strap includes intermediate course and the strip air bag that is arranged in intermediate course
Band, for oppression department to be fixed on incision site；Controlling box includes the first adjustment portion and the second adjustment portion, the control of the first adjustment portion
The inflation/deflation of air sac belt, the second adjustment portion control rectangular air bag inflation/deflation；Wrist is adjusted by the length-adjustment buckle on wrist strap first
The length and oppression department integral position and oppressive force of band；Then the first adjustment portion adjusts the elastic of wrist strap according to wrist posture
Degree, and then realize accurate adjustment of the oppression department to notch oppressive force；Second adjustment portion adjusts oppression department to notch according to bleeding area
Oppressive force realizes the further accurate adjustment to notch oppressive force；
Air sac belt is located at wrist strap intermediate course by W character form structure disk, and by W character form structure, wrist strap the back of the hand position disk is equipped with four
Air sac belt；
Oppression department includes square shell, and square shell is top closed, bottom opening, pressing plate is arranged at bottom opening, pressing plate is
Bright silica gel is made, and length and width dimensions are set as fitting closely with square shell inner sidewall, with a thickness of the one of square shell height
Half, pressing plate is oppressed in incision site, and with wrist strap and is tightened；For oppressing notch, pressing plate upper surface fixes one for pressing plate lower surface
Connecting rod, the length of the connecting rod are the half of square shell height, and the connecting rod other end is fixed on a sheet metal, the gold
The length and width dimensions for belonging to piece are identical as pressing plate, also fit closely with square shell inner wall, between sheet metal and the top of square shell
Rectangular air bag is set, when rectangular inflated condition, length and width dimensions are identical as pressing plate, height be platen elevation 1/3~
2/3, rectangular air bag upper surface and square shell inside top face are pasted, and rectangular air bag lower surface is mutually pasted with the sheet metal；
First adjustment portion includes gesture detection means, the first pressurization air pump, the first solenoid valve, second solenoid valve, the first pressure
Electric transducer, comparator；The air inlet of air sac belt is connect by second solenoid valve with the first pressurization air pump, for inflating, air bag
The gas outlet of band is connect with the first solenoid valve, for deflating；
The gesture detection means include shell, and six faces of shell are square, be internally provided with the first piezoelectric transducer and
The top and bottom of weight block, weight block are square, and the edge of the square and the medial surface of shell fit closely, weight block
The half with a thickness of shell, the bottom surface of shell is arranged in the first piezoelectric transducer, and the first piezoelectric transducer is according to counterweight
The pressure output voltage signal of block；
Second adjustment portion includes infrared camera, image processor, the second piezoelectric transducer, third analog-digital converter, the second list
Piece machine, the second pressurization air pump, third solenoid valve, the 4th solenoid valve, infrared camera are arranged at pressing plate rear, and infrared camera is set
Connecting rod left side or right side are set, the bleeding area of notch is acquired；In the image that image processor acquires infrared camera
Bleeding area extracts, and exports bleeding area value signal；Second piezoelectric transducer is arranged between metal plate and rectangular air bag,
The oppressive force being subject to for acquiring pressing plate；Second adjustment portion further includes second singlechip, due to the output of described image processor
Bleeding area value is digital signal, and second singlechip directly receives the bleeding area value of described image processor output, and passes through
Third analog-digital converter receives the pressure signal of the second piezoelectric transducer output；Infrared camera is acquired according to prefixed time interval
Bleeding area image, by front and back, bleeding area value is compared second singlechip twice, according to filling for the rectangular air bag of Ratio control
It deflates；When the ratio of front and back bleeding area value twice is less than 1, illustrate that bleeding area expands, single-chip microcontroller is according to Ratio control second
It pressurizes the aeration quantity of air pump, opens the second pressurization air pump and the 4th solenoid valve that is connected with rectangular air bag air inlet, by the
Two pressurization air pump square shaped air bag inflations；When ratio is equal to 1 or greater than 1, illustrates that bleeding area does not expand, second singlechip
According to the discharge quantity of the rectangular air bag of Ratio control, the third solenoid valve being connected with rectangular air bag gas outlet, square shaped air bag are opened
It deflates.
2. a kind of radial artery hemostat as described in claim 1, which is characterized in that first adjustment portion includes comparator,
The positive input of comparator is connected to the output end of the first piezoelectric transducer, and the negative input of comparator is connected to reference to electricity
Pressure, the size of reference voltage are configured according to the grade of the first piezoelectric transducer output voltage, and reference voltage is the first piezoelectricity
An intermediate value between sensor maximum output voltage and minimum output voltage, the intermediate value are not limited to maximum
The intermediate value of output voltage and minimum output voltage；The output signal of comparator is connected respectively to the first pressurization air pump, the second electromagnetism
Valve, the first solenoid valve, for controlling opening or closing for the first pressurization air pump and second solenoid valve and the first solenoid valve；Its
In, the first pressurization air pump and second solenoid valve are negative voltage control logic, and the first solenoid valve is positive voltage control logic, and first adds
Compression pump and second solenoid valve enable when receiving negative voltage, according to the first pressurization air pump of the size of negative voltage control and the second electromagnetism
The inflationtime of valve, the first solenoid valve enable when receiving positive voltage, and the deflation of the first solenoid valve is controlled according to the size of positive voltage
Time, so it is real by the first pressurization air pump of control and the inflationtime of second solenoid valve and the deflation time of the first solenoid valve
The control of tolerance in existing air sac belt；
When the voltage signal of first piezoelectric transducer output is greater than reference voltage, the comparator exports positive voltage signal,
Since the first pressurization air pump and second solenoid valve are negative voltage control logic, the first solenoid valve is positive voltage control logic, described
First pressurization air pump and second solenoid valve do not enable, and first solenoid valve is enabled, air sac belt exhaust；When the piezoelectric transducer
The voltage signal of output is less than reference voltage, and the comparator exports negative voltage signal, and first solenoid valve does not enable, described
First pressurization air pump and second solenoid valve are enabled, air sac belt inflation.
3. a kind of radial artery hemostat as claimed in claim 2, which is characterized in that the negative electricity of the first pressurization air pump is voltage-controlled
Logic processed realizes that the negative voltage transition that reversed follower exports comparator is an equal amount of positive electricity by reversed follower
Pressure, is then converted to digital voltage value by the first analog-digital converter, is input to first singlechip；Since the first solenoid valve is just
The positive voltage of voltage control logic, comparator output is converted to digital voltage value by the second analog-digital converter, is input to first
Single-chip microcontroller；First analog-digital converter and the second analog-digital converter are all that positive voltage is effective, only carry out analog-to-digital conversion to positive voltage, than
When exporting positive voltage compared with device, received the first analog-digital converter is negative voltage, and received the second analog-digital converter is positive voltage, the
Two analog-digital converters export digital voltage value, and the input port of corresponding second analog-digital converter of first singlechip receives number electricity
Pressure value, by internal arithmetic, first singlechip exports high level signal from its output port corresponding with the first solenoid valve, will
First solenoid valve is enabled, is vented to air sac belt, and first singlechip and the first pressurization air pump and second solenoid valve are corresponding defeated
Exit port exports low level or high-impedance state signal, and the first pressurization air pump and second solenoid valve do not enable；When comparator output is negative
When voltage, received the first analog-digital converter is positive voltage, and received the second analog-digital converter is negative voltage, the first analog-to-digital conversion
Device exports digital voltage value, and the input port of corresponding first analog-digital converter of first singlechip receives the digital voltage value, passes through
Internal arithmetic, first singlechip are believed from its output port output high level corresponding with the first pressurization air pump and second solenoid valve
Number, the first pressurization air pump and second solenoid valve are enabled, air sac belt is inflated, and first singlechip is corresponding with the first solenoid valve
Output port output low level or high-impedance state signal, the first solenoid valve do not enable.
4. a kind of radial artery hemostat as claimed in claim 3, which is characterized in that the first singlechip is stored with digital electricity
Pressure value table and high level time table, the digital voltage value in digital voltage value table and the high level time phase on high level time table
Corresponding, first singlechip receives the digital voltage value of the first analog-digital converter or the output of the second analog-digital converter, by number electricity
Pressure value carry out table lookup operation, find corresponding high level time, from corresponding output port export high level signal to
First pressurization air pump, second solenoid valve or the first solenoid valve, the time of the high level signal are obtained by tabling look-up；High level letter
Number enabled first pressurization air pump, second solenoid valve or the first solenoid valve, when high level time arrives, high level signal becomes low electricity
Flat perhaps high-impedance state first pressurization air pump, second solenoid valve or the first solenoid valve do not enable, and stop working.
5. a kind of radial artery hemostat as described in claim 1, which is characterized in that during the inflation of square shaped air bag,
When pressure signal is greater than preset warning value, second singlechip closes the second pressurization air pump and is connected with rectangular air bag air inlet
The 4th solenoid valve, stop square shaped air bag charge operation.
6. a kind of radial artery hemostat as described in claim 1, which is characterized in that the center at the pressing plate rear is additionally provided with
Green LED lamp, for being aligned with notch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710851290.4A CN107496002B (en) | 2017-09-20 | 2017-09-20 | A kind of radial artery hemostat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710851290.4A CN107496002B (en) | 2017-09-20 | 2017-09-20 | A kind of radial artery hemostat |
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| CN107496002A CN107496002A (en) | 2017-12-22 |
| CN107496002B true CN107496002B (en) | 2019-11-08 |
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| CN201710851290.4A Active CN107496002B (en) | 2017-09-20 | 2017-09-20 | A kind of radial artery hemostat |
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| CN109498100B (en) * | 2019-01-10 | 2021-03-23 | 中国人民解放军陆军军医大学第一附属医院 | Tourniquet capable of automatically releasing pressure at regular time |
| CN111134758A (en) * | 2020-01-15 | 2020-05-12 | 常州市第二人民医院 | Compressor inflating device and inflating method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103079463A (en) * | 2010-09-09 | 2013-05-01 | 西铁城控股株式会社 | Arm insertion type sphygmomanometer |
| CN204863225U (en) * | 2015-08-06 | 2015-12-16 | 成都新澳冠医疗器械有限公司 | Supplementary machine people of blood sampling |
| CN205626014U (en) * | 2016-04-18 | 2016-10-12 | 李红文 | Wrist formula radial artery haemostat device |
| CN206166983U (en) * | 2016-08-11 | 2017-05-17 | 中国人民解放军总医院 | Hemostasis device is pressed to wrist formula gasbag |
-
2017
- 2017-09-20 CN CN201710851290.4A patent/CN107496002B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103079463A (en) * | 2010-09-09 | 2013-05-01 | 西铁城控股株式会社 | Arm insertion type sphygmomanometer |
| CN204863225U (en) * | 2015-08-06 | 2015-12-16 | 成都新澳冠医疗器械有限公司 | Supplementary machine people of blood sampling |
| CN205626014U (en) * | 2016-04-18 | 2016-10-12 | 李红文 | Wrist formula radial artery haemostat device |
| CN206166983U (en) * | 2016-08-11 | 2017-05-17 | 中国人民解放军总医院 | Hemostasis device is pressed to wrist formula gasbag |
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