CN2745511Y - Mechanical sector scanning probe of ophthalic B type ultrasonic diagnostic instrument - Google Patents
Mechanical sector scanning probe of ophthalic B type ultrasonic diagnostic instrument Download PDFInfo
- Publication number
- CN2745511Y CN2745511Y CN 200420085689 CN200420085689U CN2745511Y CN 2745511 Y CN2745511 Y CN 2745511Y CN 200420085689 CN200420085689 CN 200420085689 CN 200420085689 U CN200420085689 U CN 200420085689U CN 2745511 Y CN2745511 Y CN 2745511Y
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- CN
- China
- Prior art keywords
- motor
- ophthalmology
- mechanical sector
- conical gear
- sealing ring
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- Expired - Fee Related
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Abstract
The utility model discloses a mechanical sector scanning probe of an ophthalmology B type ultrasonic diagnostic instrument, comprising a casing; a step motor arranged in the casing drives a crystal to sway, via a transmission mechanism, which realize the change of the angle for scanning. The transmission mechanism is composed of a swinging head and two intermeshed cone gears; the first cone gear is connected with the shaft of the step motor; the shaft of the second cone gear drives the crystal to rotate in the radial direction of the shaft, via the swaying head; a front base and the sealing mechanism of a motor shaft are arranged in the casing; the sealing mechanism of the motor shaft is composed of three sealing rings, one bush and one retainer ring; and the sealing rings, the bush and the retainer ring are sleeved on the step motor. The scanning range is expanded to 50 and 60 degrees in between, by the transmission of the intermeshed cone gears of the utility model; the sealing mechanism of the motor shaft in the front casing can ensure the isolation between the ultrasonic transmission medium and the inner part of the motor.
Description
Technical field
This utility model belongs to the Medical Instruments technical field, especially ophthalmology B-mode instrument mechanical sector scan probe.
Background technology
At present, in the mechanical sector scan probe of the ophthalmology B-mode instrument that uses on the market, the Electromagnetic Drive method used is arranged, have and use AC/DC motor to drive, but all there is different shortcomings in they, such as the Electromagnetic Drive method, and it is influenced by ambient temperature very responsive, cause sweeping angle random and change, the influence diagnosis; It is big, wayward etc. that AC/DC motor drives noise.
The utility model content
Technical problem to be solved in the utility model is to overcome the deficiency that prior art exists, and provides a kind of sweep limits big ophthalmology B-mode instrument mechanical sector scan probe, and it is controlled easily, is subjected to the influence of ambient temperature little.
For solving the problems of the technologies described above, ophthalmology B-mode instrument mechanical sector scan probe of the present utility model comprises overcoat, and the motor that is arranged in the overcoat drives the crystal swing by drive mechanism, realizes the change of scanning angle.Described drive mechanism is made up of yaw and 2 intermeshing conical gears, and first conical gear is connected with the axle of described motor; The axle of second conical gear drives described crystal by described yaw and upwards rotates in this footpath.
Described motor is double extension shaft 6 degree/3 degree motors.
The modulus of described first conical gear and second conical gear is 0.4, and gear ratio is 0.8333.The number of teeth of described first conical gear is that the number of teeth of 20, the second conical gears is 24.
Be provided with front stall and motor shaft sealing mechanism in described overcoat, the motor shaft sealing mechanism is made up of 3 sealing rings, 1 lining and 1 back-up ring on the axle that is enclosed within described motor; First sealing ring is arranged near the motor place, and second sealing ring and the 3rd sealing ring are arranged near the first conical gear place; Lining is arranged between first sealing ring and second sealing ring to be close to the inner peripheral surface of described front stall, is provided with cavity between the axle of lining and described motor.
Compared with prior art, the utlity model has following beneficial effect: (1) by 2 intermeshing Bevel Gear Drive, sweep limits can expand 50 degree to between 60 degree; (2) be arranged on motor shaft sealing mechanism in the protheca, can guarantee seal isolation in ultrasonic driving medium and the motor; (3) control easily is subjected to the influence of ambient temperature little.
Description of drawings
Fig. 1 is the profile of this utility model ophthalmology B-mode instrument mechanical sector scan probe;
Reference numeral:
34 axle sleeves of 1 crystal 2 yaw, 5 first back-up rings
6 sealing nails, 7 linings, 8 front stalls, 9 first sealing rings, 10 overcoats
11 blocks, 12 first screws, 13 patch panels, 14 second screws, 15 wire clamps
16 bolts, 17 sheaths, 18 bonnets, 19 back seats, 20 baffle rings
21 reference columns, 22 motors, 23 linings, 24 clench nails, 25 second sealing rings
26 second back-up rings 27 the 3rd sealing ring, 28 pins, 29 first conical gears, 30 second conical gears
31 lens frame, 32 trim rings, 33 lens coatings
The specific embodiment
Below in conjunction with accompanying drawing this utility model is described in detail.
As shown in Figure 1, ophthalmology B-mode instrument mechanical sector scan probe of the present utility model comprises overcoat 10, and the motor 22 that is arranged in the overcoat 10 drives crystal 1 swing by drive mechanism, realizes the change of scanning angle.Motor 22 adopts special diameter 20mm, double extension shaft 6 degree/3 degree motors.Drive mechanism is made up of yaw and 2 intermeshing conical gears, and first conical gear 29 is connected with the axle of motor 22.The axle of second conical gear 30 drives crystal 1 by yaw 2 and upwards rotates in this footpath.The modulus of first conical gear 29 and second conical gear 30 is 0.4, and gear ratio is 0.8333.The number of teeth of first conical gear 29 is that the number of teeth of 20, the second conical gears 30 is 24.By 2 intermeshing Bevel Gear Drive, sweep limits can expand 50 degree to between 60 degree.
Be provided with front stall 8 and motor shaft sealing mechanism in overcoat 10, the motor shaft sealing mechanism is made up of 3 sealing rings, 1 lining and 1 back-up ring on the axle that is enclosed within motor 22.First sealing ring 9 is arranged near motor 22 places, and second sealing ring 25 and the 3rd sealing ring 27 are arranged near first conical gear, 29 places, and back-up ring 26 is arranged between second sealing ring 25 and the 3rd sealing ring 27.Lining 23 is arranged between first sealing ring 9 and second sealing ring 25 to be close to the inner peripheral surface of front stall 8, is provided with cavity between the axle of lining 23 and motor 22, and cavity is equipped with butter.The motor shaft sealing mechanism just can be guaranteed seal isolation in ultrasonic driving medium and the motor like this.
Claims (5)
1, a kind of ophthalmology B-mode instrument mechanical sector scan probe, comprise overcoat, the motor that is arranged in the overcoat drives the crystal swing by drive mechanism, realize the change of scanning angle, it is characterized in that, described drive mechanism is made up of yaw and 2 intermeshing conical gears, and first conical gear is connected with the axle of described motor; The axle of second conical gear drives described crystal by described yaw and upwards rotates in this footpath.
2, a kind of ophthalmology B-mode instrument mechanical sector scan probe according to claim 1 is characterized in that, described motor is double extension shaft 6 degree/3 degree motors.
3, a kind of ophthalmology B-mode instrument mechanical sector scan probe according to claim 1 is characterized in that the modulus of described first conical gear and second conical gear is 0.4, and gear ratio is 0.8333.
4, a kind of ophthalmology B-mode instrument mechanical sector scan probe according to claim 3 is characterized in that the number of teeth of described first conical gear is that the number of teeth of 20, the second conical gears is 24.
5, a kind of ophthalmology B-mode instrument mechanical sector scan probe according to claim 1, it is characterized in that, be provided with front stall and motor shaft sealing mechanism in described overcoat, the motor shaft sealing mechanism is made up of 3 sealing rings, 1 lining and 1 back-up ring on the axle that is enclosed within described motor; First sealing ring is arranged near the motor place, and second sealing ring and the 3rd sealing ring are arranged near the first conical gear place; Lining is arranged between first sealing ring and second sealing ring to be close to the inner peripheral surface of described front stall, is provided with cavity between the axle of lining and described motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420085689 CN2745511Y (en) | 2004-11-30 | 2004-11-30 | Mechanical sector scanning probe of ophthalic B type ultrasonic diagnostic instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420085689 CN2745511Y (en) | 2004-11-30 | 2004-11-30 | Mechanical sector scanning probe of ophthalic B type ultrasonic diagnostic instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2745511Y true CN2745511Y (en) | 2005-12-14 |
Family
ID=35582098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420085689 Expired - Fee Related CN2745511Y (en) | 2004-11-30 | 2004-11-30 | Mechanical sector scanning probe of ophthalic B type ultrasonic diagnostic instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2745511Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102188260A (en) * | 2010-03-12 | 2011-09-21 | 株式会社东芝 | Ultrasound image diagnosis apparatus and drive voltage setting method for ultrasound probe thereof |
| CN102247161A (en) * | 2011-04-07 | 2011-11-23 | 楼震 | Novel animal B ultrasonic probe |
| CN103169507A (en) * | 2011-12-22 | 2013-06-26 | 深圳市威尔德医疗电子有限公司 | Cavity body inside three-dimensional ultrasound probe used in ultrasound medical equipment |
| CN105167804A (en) * | 2015-10-30 | 2015-12-23 | 天津迈达医学科技股份有限公司 | Monocrystal miniature ultrasonic scan probe |
-
2004
- 2004-11-30 CN CN 200420085689 patent/CN2745511Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102188260A (en) * | 2010-03-12 | 2011-09-21 | 株式会社东芝 | Ultrasound image diagnosis apparatus and drive voltage setting method for ultrasound probe thereof |
| CN102188260B (en) * | 2010-03-12 | 2013-09-11 | 株式会社东芝 | Ultrasound image diagnosis apparatus and drive voltage setting method for ultrasound probe thereof |
| CN102247161A (en) * | 2011-04-07 | 2011-11-23 | 楼震 | Novel animal B ultrasonic probe |
| CN103169507A (en) * | 2011-12-22 | 2013-06-26 | 深圳市威尔德医疗电子有限公司 | Cavity body inside three-dimensional ultrasound probe used in ultrasound medical equipment |
| CN105167804A (en) * | 2015-10-30 | 2015-12-23 | 天津迈达医学科技股份有限公司 | Monocrystal miniature ultrasonic scan probe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051214 Termination date: 20131130 |