GB1433340A - X-ray apparatus - Google Patents
X-ray apparatusInfo
- Publication number
- GB1433340A GB1433340A GB3279573A GB3279573A GB1433340A GB 1433340 A GB1433340 A GB 1433340A GB 3279573 A GB3279573 A GB 3279573A GB 3279573 A GB3279573 A GB 3279573A GB 1433340 A GB1433340 A GB 1433340A
- Authority
- GB
- United Kingdom
- Prior art keywords
- motor
- force
- voltage
- grip
- operator
- 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
Links
- 239000003990 capacitor Substances 0.000 abstract 3
- 239000008710 crystal-8 Substances 0.000 abstract 3
- 238000006073 displacement reaction Methods 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 230000005669 field effect Effects 0.000 abstract 1
- 230000003993 interaction Effects 0.000 abstract 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/44—Constructional features of apparatus for radiation diagnosis
- A61B6/4476—Constructional features of apparatus for radiation diagnosis related to motor-assisted motion of the source unit
- A61B6/4482—Constructional features of apparatus for radiation diagnosis related to motor-assisted motion of the source unit involving power assist circuits
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/04—Positioning of patients; Tiltable beds or the like
- A61B6/0487—Motor-assisted positioning
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B42/00—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means
- G03B42/02—Obtaining records using waves other than optical waves; Visualisation of such records by using optical means using X-rays
- G03B42/025—Positioning or masking the X-ray film cartridge in the radiographic apparatus
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Pathology (AREA)
- Public Health (AREA)
- Biophysics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Veterinary Medicine (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- High Energy & Nuclear Physics (AREA)
- General Physics & Mathematics (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- Radiography Using Non-Light Waves (AREA)
Abstract
1433340 Automatic control of position PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 10 July 1973 [13 July 1972] 32795/73 Heading G3N [Also in Division G1] A drive system for the displacement of the image section of an x-ray apparatus for medical purposes comprises an electro-mechanical transducer which converts a force exerted by an operator on a control member into an electric voltage controlling a drive motor so that its speed, and hence the displacement of the image section, is dependent on the force exerted by the operator on the control member, the transducer output voltage being substantially proportional to the operator force and being connected to the input of an integrator whose output determines the speed of the motor in proportion thereto. In Fig. 1 the vertical movement of an image section 100 is produced by the vertical force exerted on a hand grip 2 which, as shown in Fig. 2, varies the force exerted on a Piezo-electric crystal 8 clamped between a rod 13 secured to the section 100 and a rod 10 connected by a pin 9 with the grip 2 and by a pin 12 with the prod 13, members 8, 10, 12, 13 being secured by a screw 11. Fig. 3 shows the circuit for converting the output voltage of the crystal 8 to a voltage V which controls a unit 30, Fig. 1, for driving a motor 3 coupled to the section 100 via members 5, 6. The members 3, 30 may comprise the motor and control system described in Specification 1322974 and the voltage V may replace the desired value generator 31 of that Specification. The crystal 8 is connected via resistor 14 to the high-ohmic input of an operational amplifier 16 provided by field effect transistors, the interaction of members 8, 14, 16 and a parallel capacitor 15 producing an output voltage from amplifier 16 proportional to the force on the grip 2. This output voltage is integrated by operational amplifier 17, capacitor 18 and resistor 19 to produce the voltage V, the resistor 19 being adjustable to vary the ratio between operator force and motor speed or being replaced by a variable potentiometer connected across the output of amplifier 17 to achieve the same effect. Polarity change of the latter output voltage produces reversal of the rotation of motor 3. Drifting of the zero point of amplifier 16 is prevented by a switch 20 which automatically closes when grip 2, which may be rotatable, is released by the operator and returns to a rest position. Capacitor 18 may be connected in parallel with a similar switch or a resistor (not shown) to reduce the motor speed to zero, if grip 2 is released by the operator before the section 100 has come to a standstill. Downward movement of the latter (due to the absence of a counterweight) is prevented by a self-braking transmission in the motor drive. The image section 100 may be displaced in three mutuallyperpendicular directions by respective drive systems each comprising the members shown in Figs. 1 and 3, with all three transducers 8 being controlled by a common handgrip 2 and the circuits of Fig. 3 having the same proportionality factor between the exerted force and voltage V, so that a given force on the grip 2 produces substantially the same speed for all of the motors.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2234398A DE2234398C2 (en) | 1972-07-13 | 1972-07-13 | Servomotor drive for X-ray target device |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1433340A true GB1433340A (en) | 1976-04-28 |
Family
ID=5850524
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3279573A Expired GB1433340A (en) | 1972-07-13 | 1973-07-10 | X-ray apparatus |
Country Status (9)
Country | Link |
---|---|
US (1) | US3866048A (en) |
JP (1) | JPS5735449B2 (en) |
CA (1) | CA992223A (en) |
DE (1) | DE2234398C2 (en) |
FR (1) | FR2192792B1 (en) |
GB (1) | GB1433340A (en) |
IT (1) | IT991710B (en) |
NL (1) | NL7309535A (en) |
SE (1) | SE415225B (en) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2361985A1 (en) * | 1973-12-13 | 1975-06-19 | Philips Patentverwaltung | MOTOR DRIVE FOR MOVING A UNIT PART OF AN X-RAY EXAMINATION DEVICE |
DE2401853C2 (en) * | 1974-01-16 | 1982-07-15 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Motor drive for moving a device part on an X-ray examination device |
DE2441265C2 (en) * | 1974-08-28 | 1983-01-05 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Device for braking a counterweight in an X-ray examination device |
US4127775A (en) * | 1974-11-25 | 1978-11-28 | Ao:S Metall & Mek. Verkstad Ab | X-ray unit stand having field controlled brake release |
US4107590A (en) * | 1976-10-18 | 1978-08-15 | General Electric Company | Power assist device using strain responsive means |
IT1084811B (en) * | 1977-04-04 | 1985-05-28 | Scaglia Mario | SYSTEM FOR HANDLING LOADS AND EQUIPMENT IMPLEMENTING SUCH SYSTEM |
DE2831058C2 (en) * | 1978-07-14 | 1984-04-19 | Philips Patentverwaltung Gmbh, 2000 Hamburg | X-ray examination device with a patient table that can be pivoted about a horizontal axis |
US4163929A (en) * | 1978-07-28 | 1979-08-07 | General Electric Company | Handle apparatus for a power-assist device |
US4283764A (en) * | 1979-10-12 | 1981-08-11 | Nordson Corporation | Manually programmable robot with power-assisted motion during programming |
US4367532A (en) * | 1979-10-12 | 1983-01-04 | Nordson Corporation | Manually programmable robot with power-assisted motion during programming |
DE3138911A1 (en) * | 1981-09-30 | 1983-04-14 | Siemens AG, 1000 Berlin und 8000 München | X-RAY EXAMINATION DEVICE |
DE3236116A1 (en) * | 1982-09-29 | 1984-03-29 | Siemens AG, 1000 Berlin und 8000 München | X-RAY EXAMINATION DEVICE WITH A HANDLE |
US4807767A (en) * | 1983-12-20 | 1989-02-28 | Grumman Aerospace Corporation | Self balancing electric hoist |
US4658971A (en) * | 1983-12-20 | 1987-04-21 | Grumman Aerospace Corporation | Self balancing electric hoist |
US4697661A (en) * | 1986-07-14 | 1987-10-06 | General Electric Company | Drive design for mobile x-ray units with dual wheel drives |
US4847543A (en) * | 1988-04-08 | 1989-07-11 | Ultimatte Corporation | Motion control drive interface |
JPH0323364A (en) * | 1989-06-20 | 1991-01-31 | Texas Instr Japan Ltd | Heating device for fuel feed device |
DE4332253C1 (en) * | 1993-09-22 | 1994-12-01 | Siemens Ag | Adjusting device for an X-ray machine |
US5848126A (en) * | 1993-11-26 | 1998-12-08 | Kabushiki Kaisha Toshiba | Radiation computed tomography apparatus |
DE19648297A1 (en) * | 1996-11-21 | 1998-02-12 | Siemens Ag | Adjustment device for x-ray appts. |
JP2010221003A (en) * | 2009-02-26 | 2010-10-07 | Fujifilm Corp | Radiation imaging apparatus |
CN102421364B (en) * | 2009-05-08 | 2014-10-22 | 皇家飞利浦电子股份有限公司 | Motor assisted manually controlled movement assembly, x-ray system comprising the same, method and use |
DK2721951T3 (en) * | 2012-10-22 | 2017-07-24 | Usm Holding Ag | Furniture with movable furniture part |
CN105241621B (en) * | 2015-11-13 | 2016-09-28 | 西北工业大学 | Flutter thriving rib stiffness measurement device and stiffness measurement method |
CN109890290B (en) * | 2016-08-29 | 2023-04-18 | 株式会社岛津制作所 | Holding mechanism for X-ray imaging apparatus and X-ray imaging apparatus |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2841714A (en) * | 1953-05-11 | 1958-07-01 | Westinghouse Electric Corp | X-ray apparatus |
BE542615A (en) * | 1954-11-06 | |||
FR1417819A (en) * | 1964-12-18 | 1965-11-12 | English Electric Co Ltd | Pulse width control systems |
DE1936915B2 (en) * | 1969-07-19 | 1971-09-02 | ROENTGEN STRATEGY RECORDER | |
DE2104509B2 (en) * | 1971-02-01 | 1973-07-12 | X-RAY EXAMINATION DEVICE WITH A MOTORIZED DEVICE PART |
-
1972
- 1972-07-13 DE DE2234398A patent/DE2234398C2/en not_active Expired
-
1973
- 1973-06-28 US US374513A patent/US3866048A/en not_active Expired - Lifetime
- 1973-07-09 NL NL7309535A patent/NL7309535A/xx unknown
- 1973-07-10 SE SE7309655A patent/SE415225B/en unknown
- 1973-07-10 GB GB3279573A patent/GB1433340A/en not_active Expired
- 1973-07-10 JP JP7716273A patent/JPS5735449B2/ja not_active Expired
- 1973-07-10 IT IT69060/73A patent/IT991710B/en active
- 1973-07-10 CA CA176,122A patent/CA992223A/en not_active Expired
- 1973-07-12 FR FR7325544A patent/FR2192792B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3866048A (en) | 1975-02-11 |
DE2234398C2 (en) | 1984-01-26 |
SE415225B (en) | 1980-09-22 |
FR2192792A1 (en) | 1974-02-15 |
NL7309535A (en) | 1974-01-15 |
FR2192792B1 (en) | 1977-09-09 |
DE2234398A1 (en) | 1974-01-31 |
JPS5735449B2 (en) | 1982-07-29 |
CA992223A (en) | 1976-06-29 |
JPS4946693A (en) | 1974-05-04 |
IT991710B (en) | 1975-08-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |