CN106725286A - Medical eyeball tractive force clinical trial device and its application method - Google Patents
Medical eyeball tractive force clinical trial device and its application method Download PDFInfo
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- CN106725286A CN106725286A CN201710025506.1A CN201710025506A CN106725286A CN 106725286 A CN106725286 A CN 106725286A CN 201710025506 A CN201710025506 A CN 201710025506A CN 106725286 A CN106725286 A CN 106725286A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0016—Operational features thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/0016—Operational features thereof
- A61B3/0041—Operational features thereof characterised by display arrangements
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Abstract
The present invention relates to medical eyeball tractive force clinical trial device and its application method, it is characterised in that the device includes display handle, operating head and chuck, display handle bottom is connected through a screw thread with operating head top, and chuck top is connected with operating head bottom；The operating head includes adjusting knob, positioning screw rod and shell；The shell is conical hollow structure, and regulation through hole is provided with shell, and shell upper is connected with display handle lower thread；Adjusting knob is installed at the position of regulation through hole, adjusting knob and positioning leading screw are each attached to the inside of shell；Driving shaft wheel, left driven shaft wheel, right driven shaft wheel and power transmission shaft wheel are installed in the adjusting knob；It is provided with the end face of adjusting knob and left driven shaft wheel, right driven shaft wheel and the corresponding hole of power transmission shaft wheel；The power transmission shaft wheel is located at the centre of driving shaft wheel, concentric with driving shaft wheel；Centered on power transmission shaft wheel, be symmetrically arranged left driven shaft wheel and right driven shaft wheel.
Description
Technical field
The present invention relates to a kind of medical eyeball tractive force clinical trial device and its application method, the device can be by drawing
Whether the extraocular muscle meat pulling force of test measurement those who are investigated, can be used to assess detected person with the nauseating numbness of extraocular muscle, while
For the data that the correction of stravismus provides correlation are supported.
Background technology
Distraction test is the important detection methods for detecting extraocular muscle strength, while the detection can be provided for assessment being detected
Whether survey person suffers from the nauseating numbness of extraocular muscle.Distraction test includes two kinds, is respectively active distraction test and passive distraction test, master
Dynamic distraction test is to clamp corneoscleral junction tissue using tweezers, makes detected person rotate eyeball to a direction, and tester passes through
Feel the convergent force of extraocular muscle to assess the tension force of extraocular muscle；Passive distraction test is to clamp corneoscleral junction tissue using tweezers,
Those who are investigated are made to try one's best in the state of not active rotation eyeball (or general anesthesia) again, examiner draws eyeball to certain using tweezers
One direction is moved, and resistance during by sensorimotor is so as to assess the influence of restrictive factor.Usual normal person's active convergent force
Size is 1000mN or so, and passive traction force magnitude range is 600mN~1000mN, if active convergent force when being less than 150mN just
Suspect and suffer from the nauseating numbness of extraocular muscle.
Pulling test is clinical important, conventional detection methods, currently used to be typical ophthalmic Medical forceps (ginseng
See Fig. 1), pulling test presence is carried out with this Medical forceps can not be quantified, excessively lack by examiner's sensation and experience etc.
Point so that the accuracy of inspection result is substantially reduced.
The content of the invention
For the problem that current clinical detection is faced, the technical problem that the present invention is intended to solve is to provide a kind of Medical eye
Ball tractive force clinical trial device and its application method.The device with traditional ophthalmology Medical forceps to rely on, be easy to take by small volume
Band, overall structure is simple and convenient to operate, and is driving and clamping structure with axle wheel in operating process, can be beaten according to test condition
Open and close chuck, and accommodate stabilization, measurement result shows in digital display form, simple easily to read, and reliability is high, can survey
Measure the exact value of the extraocular muscle pulling force of detected person；The device can be applied to the detection of extraocular muscle pulling force, for assessment is detected
Whether the correction with the nauseating numbness of extraocular muscle and stravismus provides data support to person.
The present invention solves the technical scheme that the technical problem uses：A kind of medical eyeball tractive force clinical trial is provided
Device, it is characterised in that the device includes display handle, operating head and chuck, display handle bottom is connected with operating head top by screw thread
Connect, chuck top is connected with operating head bottom；
The operating head includes adjusting knob, positioning screw rod and shell；The shell is conical hollow structure, on shell
Regulation through hole is provided with, shell upper is connected with display handle lower thread；Adjusting knob, regulation are installed at the position of regulation through hole
Knob and positioning leading screw are each attached to the inside of shell；Be provided with the adjusting knob driving shaft wheel, left driven shaft wheel, it is right from
Moving axis wheel and power transmission shaft wheel；It is provided with the end face of adjusting knob corresponding with left driven shaft wheel, right driven shaft wheel and power transmission shaft wheel
Hole；The power transmission shaft wheel is located at the centre of driving shaft wheel, concentric with driving shaft wheel；Centered on power transmission shaft wheel, left and right
Left driven shaft wheel and right driven shaft wheel are arranged symmetrically, the center of circle of left driven shaft wheel, right driven shaft wheel and power transmission shaft wheel is positioned at same
On straight line；Driving shaft wheel is meshed with left driven shaft wheel and right driven shaft wheel, left driven shaft wheel and right driven shaft wheel again simultaneously with
Power transmission shaft wheel is meshed；
The left driven shaft wheel includes inner ring, outer ring, ball and fixed mount；Outer ring outside is provided with tooth, the inner side of outer ring
It is connected by ball with inner ring, ball is fixed between inner ring and outer ring by fixed mount；The center of the inner ring is provided with inclination
Through hole, the inclined via-hole is 3-10 ° with the angle of the central axis of power transmission shaft wheel；The right driven shaft wheel and left driven shaft wheel
Structure is identical；
The positioning screw rod is hollow screw, and top is provided with fixing groove, in the bottom insertion power transmission shaft wheel of positioning screw rod
In heart hole, positioning screw rod is connected through a screw thread with power transmission shaft wheel, and ensures coaxial with power transmission shaft wheel, and the fixing groove for passing through top
It is fixed in the shell of operating head；
The chuck includes shape and structure identical or so two parts, and the top of each part is cylindric, is inserted into a left side
In the inclined via-hole of driven shaft wheel or right driven shaft wheel, bottom is the chuck tip of flat, upper and lower part and operating head
Shell three is fixedly connected by locating pin through corresponding location hole；Ess-strain posts in corner in chuck tip
Piece；
The display handle is provided with display screen, switch and reset key, is internally provided with resistance full-bridge circuit, puts in display handle
Big device, A/D converter, single-chip microcomputer and power module；The single-chip microcomputer is connected with display screen, reset key, switch respectively, and resistance is complete
Bridge circuit is connected with ess-strain piece, then the input connection for passing through amplifier, A/D converter and single-chip microcomputer；Power module is
Whole device is powered.
The step of application method of above-mentioned medical eyeball tractive force clinical trial device, the method, is as follows：
1) chuck of device is carried out disinfection with medicinal alcohol；
2) device for opening switch, after screen registration stabilization to be shown, clicks reset key；
3) detected person's corneoscleral junction tissue is clamped with chuck, and corneoscleral junction group is clamped by rotation of adjustment knob
Knit, to ensure to be come off from chuck in traction hour angle corneoscleral limbus tissue；
4) ensure to clamp and after display screen registration stabilization, click reset key；
5) eyeball of mobile device or detected person, must assure that moving direction perpendicular to ess-strain piece in moving process
Surface, with proof stress foil gauge deformation as normal pressure caused by deformation；
6) after screen registration stabilization to be shown, registration size is read, and keep a record；
7) rotation of adjustment knob, opens chuck；
8) be repeated in step 1), step 3), step 4), step 5), step 6), step 7) 3~4 times, survey is repeated several times
The muscle tractive force size of the average registration as tester obtained after amount.
Compared with prior art, the beneficial effects of the invention are as follows：
1. apparatus of the present invention are to rely on existing Clinical Ophthalmology Medical forceps, and small volume and light can preferably be catered to and faced
Bed application, is easy to promote；The opening and closing of chuck are controlled by driving shaft wheel, driven shaft wheel and power transmission shaft wheel, it is to avoid
The unstable registration for causing of stress unstable problem when being clutched with hand, can be easier to obtain more accurate value of thrust；Driven shaft
Inclined via-hole in wheel (left driven shaft wheel and right driven shaft wheel), is inclined, for the top of fixed chuck, by driven shaft
That takes turns moves up and down to control the opening and closing of chuck, overcomes the shortcoming for using clamping force during fixed buckle single, more
Plus it is convenient accurate.
2., with single-chip microcomputer as control centre in the display handle of apparatus of the present invention, single-chip microcomputer is the miniature calculating of erasable formula
Machine, except digital voltage can be converted into power and on a display screen show in addition to, can also on the pin of single-chip microcomputer fixing phase
Measured data are sent to terminal device by the wireless connection module answered by wireless connection module, are easy to the later stage to process, and are
The assessment of ballet's disease and the treatment of stravismus provide analyticity data and support.
3. apparatus of the present invention detect the deformation of chuck using ess-strain piece, and chuck produces deformation to cause ess-strain piece
Deformation is produced, so that the resistance of ess-strain piece produces change, the size of resistance change can be by resistance full-bridge circuit
Detect, it is possible to resistance variations are converted into analog voltage change, analog voltage is by after amplifier amplification, being sent to A/D
Analog voltage can be converted into digital voltage by converter, A/D converter, and the digital voltage after conversion can be by monolithic machine testing
Arrive, and the digital voltage that will can be detected is converted into power, thus indirectly, accurately, quantitative detect extraocular muscle tractive force
Size.
4. application method of the present invention can directly obtain the concrete numerical value of tractive force, accurate, quantitative, high precision, Neng Gouwei
Clinic provides accurate data and supports.
Brief description of the drawings
Fig. 1 is current clinical medical ophthalmology tweezers；
Fig. 2 is medical a kind of structural representation of embodiment of eyeball tractive force clinical trial device of the invention；
Fig. 3 is the partial enlargement structural representation of I in Fig. 2；
Fig. 4 is operating head internal structure signal in a kind of embodiment of medical eyeball tractive force clinical trial device of the invention
Figure；
Fig. 5 is a kind of adjusting knob 2-1 stereochemical structures of embodiment of medical eyeball tractive force clinical trial device of the invention
Schematic diagram；
Fig. 6 is a kind of adjusting knob cut-away view of embodiment of medical eyeball tractive force clinical trial device of the invention；
Fig. 7 is the half of the left driven shaft wheel 2-1-2 of a kind of embodiment of medical eyeball tractive force clinical trial device of the invention
Cut open structural representation；
Fig. 8 is a kind of internal structure of display handle 1 connection of embodiment of medical eyeball tractive force clinical trial device of the invention
Block diagram；
1. display handles, 1-1. display screens, 1-2. switches, 1-3. reset keys, 1-4.USB power interfaces, 1-5. resistance in figure
Full-bridge circuit, 1-6. amplifiers, 1-7.A/D converters, 1-8. single-chip microcomputers, 1-9. bluetooth modules；2. operating head, 2-1. regulation rotations
Button, 2-1-1 driving shafts wheel, the left driven shaft wheels of 2-1-2., 2-1-2-1. inner rings, 2-1-2-2. outer rings, 2-1-2-3. balls, 2-1-
Outside 2-4. fixed mounts, 2-1-3. power transmission shafts wheel, the right driven shaft wheels of 2-1-4., 2-2. positioning screw rods, 2-2-1. fixing grooves, 2-3.
Shell；3. chuck, 3-1. ess-strains piece, 3-2 location holes, 3-3, locating pin；Terminal device 4.
Specific embodiment
The present invention is further discussed below with reference to embodiment and accompanying drawing, but not in this, as to the application claim guarantor
Protect the restriction of scope.
The medical eyeball tractive force clinical trial device of the present invention (hereinafter referred to as device, referring to Fig. 2-Fig. 8) includes display handle
1st, operating head 2 and chuck 3, the display bottom of handle 1 are connected through a screw thread with the top of operating head 2, the top of chuck 3 and the bottom of operating head 2
Connection；
The operating head 2 (referring to Fig. 2 and Fig. 4) includes adjusting knob 2-1, positioning screw rod 2-2 and shell 2-3；It is described outer
Shell 2-3 is conical hollow structure, and regulation through hole is provided with shell, and shell upper is connected with the display lower thread of handle 1；In regulation
Adjusting knob 2-1 is installed, adjusting knob 2-1 is used to adjust the opening and closing of chuck, is adjusted by rotating at the position of through hole,
When adjusting knob 2-1 is moved up, chuck closure, chuck is opened when moving down, and adjusting knob 2-1 and positioning leading screw 2-2 are equal
It is fixed on the inside of shell 2-3；Driving shaft wheel 2-1-1, left driven shaft wheel are installed in the adjusting knob 2-1 (referring to Fig. 6)
2-1-2, right driven shaft wheel 2-1-4 and power transmission shaft wheel 2-1-3；It is provided with the end face of adjusting knob 2-1 and left driven shaft wheel 2-1-
2nd, hole right driven shaft wheel 2-1-4 corresponding with power transmission shaft wheel 2-1-3 (referring to Fig. 5)；The power transmission shaft wheel 2-1-3 is located at actively
The centre of axle wheel 2-1-1, it is concentric with driving shaft wheel 2-1-1；Centered on power transmission shaft wheel 2-1-3, be symmetrically arranged a left side
Driven shaft wheel 2-1-2 and right driven shaft wheel 2-1-4, left driven shaft wheel 2-1-2, right driven shaft wheel 2-1-4 and power transmission shaft wheel 2-1-3
The center of circle be located along the same line；Driving shaft wheel 2-1-1 is meshed with left driven shaft wheel 2-1-2 and right driven shaft wheel 2-1-4, left
Driven shaft wheel 2-1-2 and right driven shaft wheel 2-1-4 is meshed with power transmission shaft wheel 2-1-3 simultaneously again；
The left driven shaft wheel 2-1-2 (referring to Fig. 7) include inner ring 2-1-2-1, outer ring 2-1-2-2, ball 2-1-2-3 and
Fixed mount 2-1-2-4；2-1-2-2 outsides in outer ring are provided with tooth, and inner side and the inner ring 2-1-2-1 of outer ring 2-1-2-2 pass through ball
2-1-2-3 is connected, and ball 2-1-2-3 is fixed between inner ring and outer ring by fixed mount 2-1-2-4；The inner ring 2-1-2-1
Center be provided with inclined via-hole, the angle of the central axis of the inclined via-hole and power transmission shaft wheel 2-1-3 is 3-10 °, in driving shaft
Left driven shaft wheel 2-1-2 is rotated in the presence of wheel 2-1-1, during adjusting knob 2-1 rotates, inner ring 2-1-2-1
Diametrically remain stationary as, moved axially only along chuck 3；The knot of the right driven shaft wheel 2-1-4 and left driven shaft wheel 2-1-2
Structure is identical, its difference be right driven shaft wheel 2-1-4 and left driven shaft wheel 2-1-2 when mounted, right driven shaft wheel 2-1-4
The angle of inclination of inner ring inclined via-hole with the angle of inclination of the inner ring inclined via-hole of left driven shaft wheel 2-1-2 conversely, and with biography
The angle of the central axis of moving axis wheel 2-1-3 is 3-10 °；
The positioning screw rod 2-2 (referring to Fig. 4) is hollow screw, and top is provided with fixing groove 2-2-1, positioning screw rod 2-2's
Bottom is inserted in the centre bore of power transmission shaft wheel 2-1-3, and positioning screw rod 2-2 is connected through a screw thread with power transmission shaft wheel, and and power transmission shaft
Wheel ensures coaxial, and fixing groove by top is fixed in the shell 2-3 of operating head；
The fixing groove 2-2-1 on the positioning screw rod 2-2 tops is used to fix whole positioning screw rod 2-2, prevents adjusting knob
2-1 positioning screw rod 2-2 during rotation rotate together, while positioning screw rod 2-2 is also for moving up and down for adjusting knob carries
For corresponding track；Positioning screw rod 2-2 is hollow structure, and connection is extended there through with data wire, while also being served to data wire
Protective effect；
The chuck 3 (referring to Fig. 3 and Fig. 4) includes shape and structure identical or so two parts, and the top of each part is
It is cylindric, it is inserted into the inclined via-hole of left driven shaft wheel 2-1-2 or right driven shaft wheels 2-1-4, bottom is the chuck of flat
Tip, substructure shape is identical with conventional Medical forceps tip shapes, is easy to clamp corneoscleral junction tissue, upper and lower part and
The shell three of operating head 2 is fixedly connected by locating pin 3-3 through corresponding location hole 3-2, the location hole 3-2 master
It is used for the axially position of chuck 3, is connected chuck 3 and operating head 2 by locating pin 3-3, while also ensures that chuck 3 is being opened
Will not moving up and down along device axial direction with during closure；Ess-strain piece 3-1 posts in corner in chuck tip,
The ess-strain piece 3-1 is mainly used in gathered data, when chuck 3 produces deformation in the presence of external force, ess-strain piece
3-1 will be detected, and the data that will be detected are transferred out in the form of resistance；
Driving shaft wheel 2-1-1 is the main body of whole adjusting knob 2-1, when there is external force to act on driving shaft wheel 2-1-1,
Driving shaft wheel 2-1-1 drives left driven shaft wheel 2-1-2 and right driven shaft wheel 2-1-4 rotations, by the work of power transmission shaft wheel 2-1-3
With to ensure that left driven shaft wheel 2-1-2 and right driven shaft wheel 2-1-4 normally rotate；Power transmission shaft wheel 2-1-3 and positioning screw rod 2-2
It is connected through a screw thread, during power transmission shaft wheel 2-1-3 rotates, power transmission shaft wheel 2-1-3 can be along the screw thread of positioning screw rod 2-2
Move up and down, and moving up and down for whole adjusting knob 2-1 is driven with this, indirectly control the opening and closing of chuck 3；
Display handle 1 (referring to Fig. 2 and Fig. 8) is provided with display screen 1-1, switch 1-2 and reset key 1-3, in display handle
Resistance full-bridge circuit 1-5, amplifier 1-6, A/D converter 1-7, single-chip microcomputer 1-8 and power module is internally provided with (not painted in figure
Go out)；The single-chip microcomputer 1-8 is connected with display screen 1-1, reset key 1-2, switch 1-3 respectively, resistance full-bridge circuit 1-5 and stress
Foil gauge 3-1 is connected, and resistance full-bridge circuit 1-5 is again by the input of amplifier 1-6, A/D converter 1-7 and single-chip microcomputer 1-8
Connection；Power module is rechargeable battery, is that whole device is powered.
Further characteristic of the invention is the central axis of the inclined via-hole on the inner ring and power transmission shaft wheel 2-1-3
Angle is 5 °, is now easy to clamp corneoscleral junction tissue, and chuck small volume, using more facilitating.
Further characteristic of the invention is respectively to be posted inside and outside chuck tip corner in each part of chuck 3
A piece of ess-strain piece, chuck 3 has four ess-strain pieces, and stress supplement can be carried out between four ess-strain pieces, can
Precision is further improved, ess-strain piece, resistance full-bridge circuit, amplifier, A/D converter and the excessively corresponding data of single-chip microcomputer
Line is connected, data wire cabling, overall appearance from the hollow structure of positioning screw rod 2-2, and circuit is played a protective role.
Further characteristic of the invention is to be additionally provided with wireless connection module in the display handle 1, wireless connection module
Input is connected with the output end of single-chip microcomputer, and the output end of wireless connection module is connected with terminal device.Here terminal device
Can be computer, smart mobile phone etc., the result of the test for that will measure is stored, it is convenient that patient's condition is filed；Institute
Stating wireless connection module can be attached using modes such as bluetooth, infrared, wifi.The single-chip microcomputer is the miniature of erasable formula
Computer, follow-up development process of being more convenient for.The display screen 1-1 is used to show final test result；When chuck 3 is in power
When being deformed under effect, ess-strain piece 3-1 will be detected, and ess-strain piece 3-1 detects deformation while also becoming
Shape, the resistance value of the ess-strain piece 3-1 after deformation can change, and the resistance value of change can be sent to resistance by data wire
Full-bridge circuit 1-5, resistance variations that resistance full-bridge circuit 1-5 will can be detected simultaneously are converted into analog voltage change, then will
Analog voltage sends amplifier 1-6 to, after the amplified device 1-6 of analog voltage amplifies, then sends A/D converter 1-7, A/D turn to
After parallel operation 1-7 receives the analog voltage after amplifying, it is translated into digital voltage and is transferred to single-chip microcomputer 1-8, numeral
Voltage is converted into the size of power under the program of single-chip microcomputer 1-8, is then shown in display screen 1-1, while data are led to
Cross bluetooth module 1-9 and be sent to terminal device；USB power source interface 1-4 is additionally provided with the display handle 1, is that whole device charges.
The step of application method (abbreviation method) of the present invention medical eyeball tractive force clinical trial device, is as follows：
1) chuck of device is carried out disinfection with medicinal alcohol；
2) device for opening switch, after screen registration stabilization to be shown, clicks reset key, and reset key is clicked after opening, is
In order to prevent data deviation, because ess-strain piece is very sensitive, chuck is slightly distorted and just has data variation；
3) detected person's corneoscleral junction tissue is clamped with chuck, and corneoscleral junction group is clamped by rotation of adjustment knob
Knit, to ensure to be come off from chuck in traction hour angle corneoscleral limbus tissue；
4) ensure to clamp and after display screen registration stabilization, click reset key；Clicking the purpose of reset key again herein is
The influence of the deformation produced during in order to exclude clamping；
5) eyeball of mobile device or detected person, must assure that moving direction perpendicular to ess-strain piece in moving process
Surface, with proof stress foil gauge deformation as normal pressure caused by deformation；
6) after screen registration stabilization to be shown, registration size is read, and keep a record；
7) rotation of adjustment knob, opens chuck；
8) be repeated in step 1), step 3), step 4), step 5), step 6), step 7) 3~4 times, survey is repeated several times
The muscle tractive force size of the average registration as tester obtained after amount；Measurement be repeated several times herein be in order to reduce it is extraneous because
Element and the measurement error that causes, for example, people in anxiety, muscle can automatic contraction etc..
Apparatus of the present invention are designed, the device pair primarily directed to clinically cannot accurately measure extraocular muscle pulling force at present
Can be applicable in active distraction test and passive distraction test, specifically carry out active distraction test or passive distraction test,
Mainly together decided on by doctor and detected person, by the device primarily to measuring the size of muscle tractive force, with tested
It doesn't matter for the state of person, and test accuracy is high.When active distraction test is carried out, step 5) in need to allow the eye of detected person
Ball is moved, when passive distraction test is carried out, step 5) in need to move in device, will be all the time in moving process
Ensure moving direction perpendicular to ess-strain piece surface.When average registration is less than 150mN, you can judge that detected person suffers from flesh
Nauseating numbness problem.When needing to carry out orthpia, testee's eyes the right and left can be respectively measured in the manner described above
Muscle pulling force size, and then be supplied to doctor's related data, carry out orthpia.
Component involved in the present invention can be by commercially available.
The present invention does not address part and is applied to prior art.
Claims (6)
1. a kind of medical eyeball tractive force clinical trial device, it is characterised in that the device includes display handle, operating head and chuck,
Display handle bottom is connected through a screw thread with operating head top, and chuck top is connected with operating head bottom；
The operating head includes adjusting knob, positioning screw rod and shell；The shell is conical hollow structure, is provided with shell
Regulation through hole, shell upper is connected with display handle lower thread；Adjusting knob, adjusting knob are installed at the position of regulation through hole
With the inside that positioning leading screw is each attached to shell；Driving shaft wheel, left driven shaft wheel, right driven shaft are installed in the adjusting knob
Wheel and power transmission shaft wheel；It is provided with the end face of adjusting knob and left driven shaft wheel, right driven shaft wheel and the corresponding hole of power transmission shaft wheel；
The power transmission shaft wheel is located at the centre of driving shaft wheel, concentric with driving shaft wheel；Centered on power transmission shaft wheel, symmetrical cloth
Left driven shaft wheel and right driven shaft wheel are put, the center of circle of left driven shaft wheel, right driven shaft wheel and power transmission shaft wheel is located along the same line；
Driving shaft wheel is meshed with left driven shaft wheel and right driven shaft wheel, left driven shaft wheel and right driven shaft wheel again simultaneously with power transmission shaft wheel
It is meshed；
The left driven shaft wheel includes inner ring, outer ring, ball and fixed mount；Outer ring outside is provided with tooth, the inner side of outer ring with it is interior
Circle is connected by ball, and ball is fixed between inner ring and outer ring by fixed mount；The center of the inner ring is provided with inclined via-hole,
The inclined via-hole is 3-10 ° with the angle of the central axis of power transmission shaft wheel；The structure of the right driven shaft wheel and left driven shaft wheel
It is identical；
The positioning screw rod is hollow screw, and top is provided with fixing groove, and the centre bore of power transmission shaft wheel is inserted in the bottom of positioning screw rod
In, positioning screw rod is connected through a screw thread with power transmission shaft wheel, and ensures coaxial with power transmission shaft wheel, and fixing groove by top is fixed
In in the shell of operating head；
The chuck includes shape and structure identical or so two parts, and the top of each part is cylindric, is inserted into left driven
In the inclined via-hole of axle wheel or right driven shaft wheel, bottom is the shell of the chuck tip of flat, upper and lower part and operating head
Three is fixedly connected by locating pin through corresponding location hole；Ess-strain piece posts in corner in chuck tip；
The display handle is provided with display screen, switch and reset key, and resistance full-bridge circuit, amplification are internally provided with display handle
Device, A/D converter, single-chip microcomputer and power module；The single-chip microcomputer is connected with display screen, reset key, switch respectively, resistance full-bridge
Circuit is connected with ess-strain piece, then the input connection for passing through amplifier, A/D converter and single-chip microcomputer；Power module is whole
Individual device is powered.
2. medical eyeball tractive force clinical trial device according to claim 1, it is characterised in that inclining on the inner ring
Oblique through hole is 5 ° with the angle of the central axis of power transmission shaft wheel.
3. medical eyeball tractive force clinical trial device according to claim 1, it is characterised in that each part of chuck
In chuck tip corner inside and outside respectively post a piece of ess-strain piece.
4. medical eyeball tractive force clinical trial device according to claim 1, it is characterised in that on the display handle also
USB power source interface is provided with, is that whole device charges.
5. medical eyeball tractive force clinical trial device according to claim 1, it is characterised in that in the display handle also
Wireless connection module is provided with, the input of wireless connection module is connected with the output end of single-chip microcomputer, the output of wireless connection module
End is connected with terminal device.
6. the application method of any described medical eyeball tractive force clinical trial devices of a kind of claim 1-5, the method
Step is as follows：
1）The chuck of device is carried out disinfection with medicinal alcohol；
2）Device for opening is switched, and after screen registration stabilization to be shown, clicks reset key, and reset key is clicked after opening；
3）Detected person's corneoscleral junction tissue is clamped with chuck, and by rotation of adjustment knob come angle of pinching corneoscleral limbus tissue, with
Ensure to be come off from chuck in traction hour angle corneoscleral limbus tissue；
4）Ensure to clamp and after display screen registration stabilization, click reset key；
5）Mobile device or the eyeball of detected person, must assure that moving direction perpendicular to ess-strain piece table in moving process
Face, with proof stress foil gauge deformation as normal pressure caused by deformation；
6）After screen registration stabilization to be shown, registration size is read, and keep a record；
7）Rotation of adjustment knob, unclamps chuck；
8）It is repeated in step 1）, step 3）, step 4）, step 5）, step 6）, step 7）3 ~ 4 times, obtained after measurement is repeated several times
The muscle tractive force size of the average registration as tester for arriving.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4413635A (en) * | 1980-04-07 | 1983-11-08 | Hughes Aircraft Company | Ophthalmic clip |
| US5038795A (en) * | 1987-08-05 | 1991-08-13 | Roush Elsie S | Muscle tonometer apparatus and method |
| CN2100865U (en) * | 1991-07-02 | 1992-04-08 | 中国人民解放军第三七一医院 | Detection tweezers for external eye |
| FR2774888A1 (en) * | 1998-02-17 | 1999-08-20 | Jacques Chereau Technologies | Device for measuring the traction force exerted on eye muscle and amplitude of organ connected to it |
| CN202505578U (en) * | 2012-04-05 | 2012-10-31 | 张海涛 | Novel tweezers special for eye muscle |
| CN206836865U (en) * | 2017-01-13 | 2018-01-05 | 河北工业大学 | Medical eyeball tractive force clinical trial device |
-
2017
- 2017-01-13 CN CN201710025506.1A patent/CN106725286B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4413635A (en) * | 1980-04-07 | 1983-11-08 | Hughes Aircraft Company | Ophthalmic clip |
| US5038795A (en) * | 1987-08-05 | 1991-08-13 | Roush Elsie S | Muscle tonometer apparatus and method |
| CN2100865U (en) * | 1991-07-02 | 1992-04-08 | 中国人民解放军第三七一医院 | Detection tweezers for external eye |
| FR2774888A1 (en) * | 1998-02-17 | 1999-08-20 | Jacques Chereau Technologies | Device for measuring the traction force exerted on eye muscle and amplitude of organ connected to it |
| CN202505578U (en) * | 2012-04-05 | 2012-10-31 | 张海涛 | Novel tweezers special for eye muscle |
| CN206836865U (en) * | 2017-01-13 | 2018-01-05 | 河北工业大学 | Medical eyeball tractive force clinical trial device |
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| CN106725286B (en) | 2018-04-06 |
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