CN2533806Y - Slit-lamp scanning drive apparatus - Google Patents
Slit-lamp scanning drive apparatus Download PDFInfo
- Publication number
- CN2533806Y CN2533806Y CN 02206814 CN02206814U CN2533806Y CN 2533806 Y CN2533806 Y CN 2533806Y CN 02206814 CN02206814 CN 02206814 CN 02206814 U CN02206814 U CN 02206814U CN 2533806 Y CN2533806 Y CN 2533806Y
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- CN
- China
- Prior art keywords
- motor
- slit
- lamp
- anterior
- scanning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a slit-lamp scanning and driving device which can be used to control the micrographic anterior eye segment image analyzer of a scanning slit-lamp to make the acquisition of the anterior eye segment image and the scanning process of the slit-lamp synchronous, being provided with a motor, a motor synchronizing wheel, a synchronous belt, a motor controlling circuit and a motor fixing support, the motor synchronizing wheel is fixed on a stepping motor shaft, which is connected with the synchronizing wheel of the arm of the slit-lamp through the synchronous belt, the motor is used to control the motor controlling circuit, which can transfer electric pulse signals into angle displacements, through the control of the number of pulse signals, the value of the angle displacements can be controlled so as to reach the purpose of accurately controlling the slit-lamp to turn around the shaft from -10 degree to -170 degree and to be located, and realizing the purpose of synchronizing the scanning process of the slit-lamp with the image dynamic acquisition of the anterior eye segment can photograph the anterior segment images in a static and plane method, and can also make the scanning dynamic acquisition possible, so as to acquire the anterior segment images of corneas, anterior chambers and lenses and calculate the various physiological parameters of anterior segments in need.
Description
This utility model relates to a kind of scanning driving device, and especially a kind of control " the micro-anterior segment image analyser of scan-type slit lamp " realizes that anterior segment image obtains the slit lamp scanning driving device synchronous with slit lamp.
The anterior segment image analyser, especially the micro-image analyzer at the moment of slit lamp is can be for the general clinical diagnosis of ophthalmology, also can gather, analyze and file the image of anterior ocular segment (cornea, iris, crystalline lens etc.), for the critical medical devices of clinical ophthalmology diagnosis, the consultation of doctors, teaching, scientific research, it is made up of slit lamp microscope, image pick-up device and outut device.But existing slit lamp microscope is not established scanning driving device, therefore can not carry out the scan-type dynamic acquisition, influences the result of use of the micro-anterior segment image analyser of slit lamp.
The purpose of this utility model is to provide a kind of control " the micro-anterior segment image analyser of scan-type slit lamp " to realize that anterior segment image obtains the critical component synchronous with slit lamp." the micro-anterior segment image analyser of scan-type slit lamp " can carry out the shooting of static plane to anterior segment image under its driving, also can carry out the scan-type dynamic acquisition, obtain cornea, anterior chamber and lenticular anterior segment image, and carry out graphical analysis by computer and special-purpose software, calculate the various physiological parameters of anterior ocular segment.
This utility model is provided with motor, motor drum in-phase, crack arm synchronizing wheel, synchronous band, circuit for controlling motor and motor fixing frame.Motor is fixed on the motor fixing frame, and motor drum in-phase is fixed on the step motor shaft, and with band transmission synchronously, the Electric Machine Control line connects circuit for controlling motor between motor drum in-phase and the crack arm synchronizing wheel.
Said motor adopts three/four phase step motor, and it is converted to angular displacement with electric impulse signal, comes the pilot angle displacement by the control impuls number, thereby reaches the purpose of accurate control slit lamp around axle rotational positioning in-10 ° to-170 ° angular ranges.That is to say that control signal can be sent by computer, producing step-by-step impulse control step motor through circuit for controlling motor rotates, rotate synchronously through the crack of band drive synchronously arm again, the signal controlling that its velocity of rotation, angle are sent by computer realizes slit lamp scanning and the synchronous purpose of anterior segment image dynamic acquisition.Therefore under driving of the present utility model, the micro-anterior segment image analyser of scan-type slit lamp can carry out static plane to anterior segment image and take, also can carry out the scan-type dynamic acquisition, obtain cornea, anterior chamber and lenticular anterior segment image, and carry out graphical analysis by computer and special-purpose software, calculate the clinician and carry out the various physiological parameters of anterior ocular segment such as the required corneal thickness of refractive surgery, corneal curvature, anterior chamber depth, angle of anterior chamber size.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is a circuit for controlling motor block diagram of the present utility model.
Fig. 3 is a circuit for controlling motor schematic diagram of the present utility model.
Fig. 4 is a control signal sequential chart of the present utility model.
As shown in Figure 1, scanning driving device by motor 1, motor drum in-phase 2, crack arm synchronizing wheel 3, be with 4 synchronously, circuit for controlling motor 5 and motor fixing frame 6 form.Wherein crack arm synchronizing wheel 3 is fixed as one with the crack arm; Motor drum in-phase 2 be fixed on motor 1 the axle on, between motor drum in-phase 2 and the crack arm synchronizing wheel 3 with being with 4 transmissions synchronously.Motor 1 adopts three-phase (or four phases) stepping micro machine, it is a kind of electric impulse signal to be converted to angular displacement, axle by motor rotate to drive, and can come the pilot angle displacement by the control impuls number, thereby reaches the sway purpose of angle orientation of accurate control slit lamp.The control line 11 of motor 1 connects circuit for controlling motor 5, and motor 1 is fixed on the motor fixing frame 6.
As shown in Figure 2, circuit for controlling motor is made up of pulsqe distributor 7 and amplifier 8, and input pulse CP connects the input of pulsqe distributor 7, the input of the output termination amplifier 8 of pulsqe distributor 7, the control line of the output termination motor 1 of amplifier 8.In Fig. 3, pulsqe distributor is made up of gate circuit U1～U4 and resistance R 9～R12.Amplifier adopts power amplifier, and BG1～BG8 forms by audion.The output of amplifier connects motor.Its control signal sequential is seen Fig. 4.
Circuit for controlling motor also can select for use the integrated IC control circuit that matches with synchronous motor to realize.
Claims (2)
1, slit lamp scanning driving device, it is characterized in that being provided with motor, motor drum in-phase, crack arm synchronizing wheel, synchronous band, circuit for controlling motor and motor fixing frame, motor is fixed on the motor fixing frame, motor drum in-phase is fixed on the step motor shaft, with band transmission synchronously, the Electric Machine Control line connects circuit for controlling motor between motor drum in-phase and the crack arm synchronizing wheel.
2, slit lamp scanning driving device as claimed in claim 1, it is characterized in that circuit for controlling motor is made up of pulsqe distributor and amplifier, input pulse CP connects the input of pulsqe distributor, the output termination amplifier input terminal of pulsqe distributor, the output termination Stepping Motor Control line of amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02206814 CN2533806Y (en) | 2002-02-10 | 2002-02-10 | Slit-lamp scanning drive apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02206814 CN2533806Y (en) | 2002-02-10 | 2002-02-10 | Slit-lamp scanning drive apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2533806Y true CN2533806Y (en) | 2003-02-05 |
Family
ID=33688039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02206814 Expired - Fee Related CN2533806Y (en) | 2002-02-10 | 2002-02-10 | Slit-lamp scanning drive apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2533806Y (en) |
-
2002
- 2002-02-10 CN CN 02206814 patent/CN2533806Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |