US3594072A - Head-holding fixture for use with visual instruments - Google Patents

Head-holding fixture for use with visual instruments Download PDF

Info

Publication number
US3594072A
US3594072A US882233A US3594072DA US3594072A US 3594072 A US3594072 A US 3594072A US 882233 A US882233 A US 882233A US 3594072D A US3594072D A US 3594072DA US 3594072 A US3594072 A US 3594072A
Authority
US
United States
Prior art keywords
head
frame
holding fixture
engaging
discs
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 - Lifetime
Application number
US882233A
Inventor
James E Feather
Jens Duborg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
A S LABORATORIES Inc A CORP OF
Biometrics Inc
Original Assignee
Biometrics Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Biometrics Inc filed Critical Biometrics Inc
Application granted granted Critical
Publication of US3594072A publication Critical patent/US3594072A/en
Assigned to A. S. LABORATORIES, INC., A CORP OF DE reassignment A. S. LABORATORIES, INC., A CORP OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: GULF & WESTERN MANUFACTURING COMPANY A CORP OF MI.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • A61B3/0083—Apparatus for testing the eyes; Instruments for examining the eyes provided with means for patient positioning
    • 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
    • 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
    • A61B3/113—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining or recording eye movement

Definitions

  • a head-holding fixture for use with visual instruments including a frame with a laterally extending bar for engaging the forehead and a moveable chin support for pivoting the head about the laterally extending bar and/or changing the head elevation with respect to it so as to provide both height and tilt adjustment.
  • One object of this invention is to provide a head-holding fixture which provides a single adjustment for both head height and tilt.
  • Another object of this invention is to provide a headholding fixture with a tilt adjustment which holds the eyes in a relatively stable position.
  • Yet another object of this invention is to provide a headholding fixture which has simple means for restricting lateral head movement.
  • Yet another object of this invention is to provide a headholding fixture which is composed of few parts, all of which are relatively simple and inexpensive to fabricate.
  • the head-holding fixture of this invention includes a frame having a bar for engaging the forehead.
  • a chin rest is mounted on the frame and is moveable both up and down, and back and forth, so as to pivot, raise, and lower the head with respect to the bar at the forehead.
  • Restraining means are connected to the frame, which engage the sides of the head to resist lateral movement.
  • FIG. I is a perspective view of a head-holding fixture constructed in accordance with this invention and showing the way it may be associated with an eye movement monitor;
  • FIG. 2 is a side view of the head-holding fixture as it may be mounted on a table;
  • FIG. 3 is a front view of the fixture, both FIGS. 2 and 3 showing the way the head is positioned by it.
  • FIG. I the head-holding fixture of this invention is shown mounted on the end 12 of an eye movement monitor 14.
  • the eye movement monitor 14 is only exemplary of the type of visual instrument with which the headholding fixture of this invention may be used, and it is to be understood that in no way limits the scope of this invention.
  • Such head-holding fixtures are often required by scientists, ophthalmologists, optometrists, etc. in either the utilization or examination of a subject's eyes and while in FIG. 1, the fixture is shown secured to the monitor 34, it is to be understood that it may be supported independently of other instruments, and for example, be clamped to a table as shown in FIG. 2.
  • the head-holding fixture of this invention provides a comfortable, simple, reliable, and easily operable device.
  • the fixture 10 has a base 16 which includes a cylinder 18 having an extendable stem 20 depending from it, which in turn carries a foot 22.
  • the stem 20 may be drawn downwardly from the cylinder 18 so as effectively to raise the entire assembly.
  • a height adjustment knob 24 carrying a pin (not shown) may selectively be positioned in notches (not shown) provided in the stem so as to hold the stern in any selected extended position.
  • a friction arrangement may replace the pin and notches and serve the same purpose.
  • the cylinder I8 supports a generally triangular plate 28 at the top, which in turn carries a tubular frame member 30.
  • the tubular frame member 30 includes a pair of legs 32 and 34 whose lower ends are secured to the rear corners 36 and 38, respectively, of plate 28.
  • the lower portion of the legs 32 and 34 diverge in an upwardly direction so that the vertical sections 40 and 42 are far enough apart so that the head of the subject may fit between themf
  • Generally horizontal forwardly extending arms 44 and 46 are secured to the tops of the vertical sections 40 and 42 and they in turn are joined by a laterally extending horizontal bar 48, which is designed to engage the forehead of the subject about l inches above the eyes. This is suggested clearly in FIGS. 2 and 3.
  • a pair of generally vertical plates 50 and 52 are welded or otherwise secured to the bend in the frame member 30 where the vertical sections 40 and 42 join the horizontal forwardly extending arms 44 and 46. These plates serve as the base for clamps 54, which pivotally carry U-shaped bracket 56 which bears the chin rest 58.
  • the clamps 54 are controlled by locking knobs 60; and when the clamps are loosened, the U- shaped bracket 56 may be raised and lowered on the plates 50 and 52, as well as be pivoted on those plates about the axis of the locking knobs 60.
  • a handle 62 is provided adjacent the chin support 58, which may readily be grasped by an operator so as to lift and/or pivot the bracket.
  • a pair of camlike discs 64 are eccentrically mounted on the forwardly extending arms 44 and 46 of the frame member 30 forward of the plates 50 and 52.
  • the discs 64 rotate on the arms 44 and 46 and their peripheries move toward and away from one another depending on their particular angular posi' tions. Because they are eccentrically mounted, it is apparent that rotation does effect the distance between them.
  • the discs are intended lightly to contact the subjects temples to prevent lateral motion of the head when in position within the frame 30.
  • the operation of the head-holding fixture is as follows: The subject positions his head within the bracket 56 with his forehead resting against the lateral bar 48 so that the center point of the tubing rests about 1% inches above the eyes and is centered between them and establishes a tilt axis for the head just above the eyes. The subject is then asked to tilt his head until he is comfortable, and the chin rest is tilted and/or moved up or down to support his chin in that position. The locking knobs 60 are then tightened and the discs 64 are rotated so that they lightly contact the subjects temples and prevent lateral motion of the head. With these easy adjustments the examination or test of the subjects eyes may begin.
  • the fixture shown in the drawing is intimately associated with and connected to an eye movement monitor 14, it is to be understood that the fixture is wholly independent of the monitor and may be used with a variety of different devices. Moreover, the cylinder 18 may independently be clamped to a table or other support so that it is not in any way connected to the particular device with which the subject is to be examined or tested.
  • a head'holding fixture comprising,
  • a tubular frame including a laterally extending bar for engaging the forehead
  • an adjustable chin rest means for mounting and adjusting said chin. rest on the frame,
  • said adjusting means including means for providing a single adjustment for both the head height and tilt with respect to the frame,
  • a head-holding fixture in accordance with claim 1 further characterized by said mounting means including a bracket that carries the chin rest secured on each side of the frame,
  • said adjusting means including clamps, one on each side of the frame for engaging the bracket,
  • said adjusting means also including a fastener on each clamp to pivot, raise and lower the bracket on the frame.
  • a head-holding fixture in accordance with claim 1 further characterized by said restraining means comprising a pair of eccentrically mounted discs on each side of the frame for engaging the sides of the head by their edges,
  • said discs being rotatable to move their edges toward and away from each other.
  • a head-holding fixture in accordance with claim 2 further characterized by said bar for engaging the forehead extending laterally across the frame and establishes a tilt axis for the headjust above the eyes,
  • adjusting means enabling the chin rest to move up and down, and back and forth with respect to the laterally extending bar.
  • a head-holding fixture in accordance with claim 4 further characterized by said frame comprising a pair of substantially vertical side posts and a pair of forwardly extending arms attached to the tops of the side posts and joined together by the laterally extending bar,
  • said discs being mounted for rotation on the forwardly extending arms
  • said adjusting means being secured to the frame rearwardly of the discs.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Ophthalmology & Optometry (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Human Computer Interaction (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

A head-holding fixture for use with visual instruments including a frame with a laterally extending bar for engaging the forehead and a moveable chin support for pivoting the head about the laterally extending bar and/or changing the head elevation with respect to it so as to provide both height and tilt adjustment.

Description

United States Patent [:11 3,594,072
[72] lnvcnlOrS J s E- fl [50] Field of Search 351/38; Natick; 250/50; 297/391, 392, 397, 404; 248/1 l8 Jens Duborg, Pinehurst, both of, Mass.
[21 Appl. No. 882,233 [56] References Cited [22] Filed Dec. 261969 UNITED STATES PATENTS [45] Patented July 1971 2 06 0] l2 9 A J 51 Assignee Biometrics, inc. 3, 5 /l 36 mes, r 3 /l 3 Cambridge, Mass Primary Examiner-David Schonberg [54] HEAD-HOLDING FIXTURE FOR USE WITH VISUAL INSTRUMENTS 5 Claims, 3Drawing Figs.
[52] US. Cl. 351/38, 248/118, 250/50, 297/392 [5]] lnt.Cl A6lb 3/00 Assistant Examiner-Paul A. Sacher Attorney-Wolf, Greenfield, Hieken & Sacks ABSTRACT: A head-holding fixture for use with visual instruments including a frame with a laterally extending bar for engaging the forehead and a moveable chin support for pivoting the head about the laterally extending bar and/or changing the head elevation with respect to it so as to provide both height and tilt adjustment.
PATENTEUJULZOISYI 3. 594,072 sum 2 or 2 INVENTOR Times E. FEATHEQ B M Datama- ATTORNEYS HEAD-HOLDING FIXTURE FOR USE WITH VISUAL INSTRUMENTS This invention relates to head-holding fixtures and more particularly comprises a simple, relatively inexpensive fixture for supporting the head in a fixed position.
Most ophthalmic instruments such as slit lamps, keratometers, visual field plotters, etc. utilize head-holding fixtures of one sort or another. These fixtures have in the past had one or more of the following disadvantages:
A. They required at least two types of adjustment to position the head. Separate adjustments were provided to establish the chin height and the degree of forehead tilt.
B. They incorporated an adjustment system which tilts the head about a fixed chin rest. Because the chin remained relatively stable during such an adjustment, the eyes then moved over a considerable range in spite of the fact that when using instruments which focus on the eyes should remain relatively stable during adjustment.
C. They did not include suitable means for restricting lateral head movement.
D. They were relatively complex and expensive, and
required a substantial number of machined parts.
One object of this invention is to provide a head-holding fixture which provides a single adjustment for both head height and tilt.
Another object of this invention is to provide a headholding fixture with a tilt adjustment which holds the eyes in a relatively stable position.
Yet another object of this invention is to provide a headholding fixture which has simple means for restricting lateral head movement.
Yet another object of this invention is to provide a headholding fixture which is composed of few parts, all of which are relatively simple and inexpensive to fabricate.
To accomplish these and other objects, the head-holding fixture of this invention includes a frame having a bar for engaging the forehead. A chin rest is mounted on the frame and is moveable both up and down, and back and forth, so as to pivot, raise, and lower the head with respect to the bar at the forehead. Restraining means are connected to the frame, which engage the sides of the head to resist lateral movement.
In the drawings:
FIG. I is a perspective view of a head-holding fixture constructed in accordance with this invention and showing the way it may be associated with an eye movement monitor;
FIG. 2 is a side view of the head-holding fixture as it may be mounted on a table; and
FIG. 3 is a front view of the fixture, both FIGS. 2 and 3 showing the way the head is positioned by it.
In FIG. I the head-holding fixture of this invention is shown mounted on the end 12 of an eye movement monitor 14. The eye movement monitor 14 is only exemplary of the type of visual instrument with which the headholding fixture of this invention may be used, and it is to be understood that in no way limits the scope of this invention. Such head-holding fixtures are often required by scientists, ophthalmologists, optometrists, etc. in either the utilization or examination of a subject's eyes and while in FIG. 1, the fixture is shown secured to the monitor 34, it is to be understood that it may be supported independently of other instruments, and for example, be clamped to a table as shown in FIG. 2. The head-holding fixture of this invention provides a comfortable, simple, reliable, and easily operable device.
The fixture 10 has a base 16 which includes a cylinder 18 having an extendable stem 20 depending from it, which in turn carries a foot 22. The stem 20 may be drawn downwardly from the cylinder 18 so as effectively to raise the entire assembly. A height adjustment knob 24 carrying a pin (not shown) may selectively be positioned in notches (not shown) provided in the stem so as to hold the stern in any selected extended position. A friction arrangement may replace the pin and notches and serve the same purpose. When the fixture I0 is rigidly secured to an instrument, as is the case in the embodiment shown, it is apparent that when the stem 20 is extended the entire assembly is effectively tilted about the legs 25 on end 26 of the machine and end 12 is elevated.
The cylinder I8 supports a generally triangular plate 28 at the top, which in turn carries a tubular frame member 30. The tubular frame member 30 includes a pair of legs 32 and 34 whose lower ends are secured to the rear corners 36 and 38, respectively, of plate 28. The lower portion of the legs 32 and 34 diverge in an upwardly direction so that the vertical sections 40 and 42 are far enough apart so that the head of the subject may fit between themfGenerally horizontal forwardly extending arms 44 and 46 are secured to the tops of the vertical sections 40 and 42 and they in turn are joined by a laterally extending horizontal bar 48, which is designed to engage the forehead of the subject about l inches above the eyes. This is suggested clearly in FIGS. 2 and 3.
A pair of generally vertical plates 50 and 52 are welded or otherwise secured to the bend in the frame member 30 where the vertical sections 40 and 42 join the horizontal forwardly extending arms 44 and 46. These plates serve as the base for clamps 54, which pivotally carry U-shaped bracket 56 which bears the chin rest 58. The clamps 54 are controlled by locking knobs 60; and when the clamps are loosened, the U- shaped bracket 56 may be raised and lowered on the plates 50 and 52, as well as be pivoted on those plates about the axis of the locking knobs 60. To facilitate adjustment of the bracket 56, a handle 62 is provided adjacent the chin support 58, which may readily be grasped by an operator so as to lift and/or pivot the bracket.
A pair of camlike discs 64 are eccentrically mounted on the forwardly extending arms 44 and 46 of the frame member 30 forward of the plates 50 and 52. The discs 64 rotate on the arms 44 and 46 and their peripheries move toward and away from one another depending on their particular angular posi' tions. Because they are eccentrically mounted, it is apparent that rotation does effect the distance between them. The discs are intended lightly to contact the subjects temples to prevent lateral motion of the head when in position within the frame 30.
The operation of the head-holding fixture is as follows: The subject positions his head within the bracket 56 with his forehead resting against the lateral bar 48 so that the center point of the tubing rests about 1% inches above the eyes and is centered between them and establishes a tilt axis for the head just above the eyes. The subject is then asked to tilt his head until he is comfortable, and the chin rest is tilted and/or moved up or down to support his chin in that position. The locking knobs 60 are then tightened and the discs 64 are rotated so that they lightly contact the subjects temples and prevent lateral motion of the head. With these easy adjustments the examination or test of the subjects eyes may begin.
While the fixture shown in the drawing is intimately associated with and connected to an eye movement monitor 14, it is to be understood that the fixture is wholly independent of the monitor and may be used with a variety of different devices. Moreover, the cylinder 18 may independently be clamped to a table or other support so that it is not in any way connected to the particular device with which the subject is to be examined or tested.
What we claim is:
l. A head'holding fixture comprising,
a tubular frame including a laterally extending bar for engaging the forehead,
an adjustable chin rest, means for mounting and adjusting said chin. rest on the frame,
said adjusting means including means for providing a single adjustment for both the head height and tilt with respect to the frame,
and restraining means connected to the frame proximate the laterally extending bar for resisting lateral movement of the head in the frame.
2. A head-holding fixture in accordance with claim 1 further characterized by said mounting means including a bracket that carries the chin rest secured on each side of the frame,
said adjusting means including clamps, one on each side of the frame for engaging the bracket,
said adjusting means also including a fastener on each clamp to pivot, raise and lower the bracket on the frame.
3. A head-holding fixture in accordance with claim 1 further characterized by said restraining means comprising a pair of eccentrically mounted discs on each side of the frame for engaging the sides of the head by their edges,
said discs being rotatable to move their edges toward and away from each other.
4. A head-holding fixture in accordance with claim 2 further characterized by said bar for engaging the forehead extending laterally across the frame and establishes a tilt axis for the headjust above the eyes,
and said adjusting means enabling the chin rest to move up and down, and back and forth with respect to the laterally extending bar.
5. A head-holding fixture in accordance with claim 4 further characterized by said frame comprising a pair of substantially vertical side posts and a pair of forwardly extending arms attached to the tops of the side posts and joined together by the laterally extending bar,
said discs being mounted for rotation on the forwardly extending arms,
said adjusting means being secured to the frame rearwardly of the discs.

Claims (5)

1. A head-holding fixture comprising, a tubular frame including a laterally extending bar for engaging the forehead, an adjustable chin rest, means for mounting and adjusting said chin rest on the frame, said adjusting means including means for providing a single adjustment for both the head height and tilt with respect to the frame, and restraining means connected to the frame proximate the laterally extending bar for resisting lateral movement of the head in the frame.
2. A head-holding fixture in accordance with claim 1 further characterized by said mounting means including a bracket that carries the chin rest secured on each side of the frame, said adjusting means including clamps, one on each side of the frame for engaging the bracket, said adjusting means also including a fastener on each clamp to pivot, raise and lower the bracket on the frame.
3. A head-holding fixture in accordance with claim 1 further characterized by said restraining means comprising a pair of eccentrically mounted discs on each side of the frame for engaging the sides of the head by their edges, said discs being rotatable to move their edges toward and away from each other.
4. A head-holding fixture in accordance with claim 2 further characterized by said bar for engaging the forehead extending laterally across the frame and establishes a tilt axis for the head just above the eyes, and said adjusting means enabling the chin rest to move up and down, and back and forth with respect to the laterally extending bar.
5. A head-holding fixture in accordance with claim 4 further characterized by said frame comprising a pair of substantially vertical side posts and a pair of forwardly extending arms attached to the tops of the side posts and joined together by the laterally extending bar, said discs being mounted for rotation on the forwardly extending arms, said adjusting means being secured to the frame rearwardly of the discs.
US882233A 1969-12-04 1969-12-04 Head-holding fixture for use with visual instruments Expired - Lifetime US3594072A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88223369A 1969-12-04 1969-12-04

Publications (1)

Publication Number Publication Date
US3594072A true US3594072A (en) 1971-07-20

Family

ID=25380171

Family Applications (1)

Application Number Title Priority Date Filing Date
US882233A Expired - Lifetime US3594072A (en) 1969-12-04 1969-12-04 Head-holding fixture for use with visual instruments

Country Status (1)

Country Link
US (1) US3594072A (en)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3814942A (en) * 1972-11-10 1974-06-04 Acuity Syst Inc Human head restraint system
FR2307510A1 (en) * 1975-04-18 1976-11-12 Michael Henry Portable eye testing equipment - uses unmodulated infrared light from two transmitters, receivers and visible red light
US4102564A (en) * 1975-04-18 1978-07-25 Michael Henry L Portable device for the accurate measurement of eye movements both in light and obscurity
US4128317A (en) * 1977-06-01 1978-12-05 Lecover Maurice Positioning means for ophthalmic examinations
US4139280A (en) * 1975-09-03 1979-02-13 Carl Zeiss-Stiftung Head rest for ophthalmological examination
US4735498A (en) * 1984-11-19 1988-04-05 Per Udden Eye movement measuring apparatus
US4755045A (en) * 1986-04-04 1988-07-05 Applied Science Group, Inc. Method and system for generating a synchronous display of a visual presentation and the looking response of many viewers
US4790647A (en) * 1984-12-06 1988-12-13 Dieter Mann Gmbh Examination unit
US4838681A (en) * 1986-01-28 1989-06-13 George Pavlidis Method and means for detecting dyslexia
US4852988A (en) * 1988-09-12 1989-08-01 Applied Science Laboratories Visor and camera providing a parallax-free field-of-view image for a head-mounted eye movement measurement system
US20050254009A1 (en) * 2004-05-12 2005-11-17 Chris Baker Motorized patient support for eye examination or treatment
US20150201830A1 (en) * 2012-07-13 2015-07-23 Nestec Sa Devices and methods for measuring parameters associated with animal eye health
WO2018144804A1 (en) * 2017-02-02 2018-08-09 Morankar Anand Mandibular/head positioner for patients undergoing anesthesia
US10363169B2 (en) 2010-05-10 2019-07-30 Tel Hashomer Medical Research Infrastructure And Services Ltd. System and method for treating an eye
US10702416B2 (en) 2013-02-26 2020-07-07 Belkin Laser Ltd. System for glaucoma treatment
US11382794B2 (en) 2018-07-02 2022-07-12 Belkin Laser Ltd. Direct selective laser trabeculoplasty
WO2023220148A1 (en) * 2022-05-10 2023-11-16 Mayo Foundation For Medical Education And Research Adjustable chin rest apparatus for visual field system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2063015A (en) * 1932-06-20 1936-12-08 Dartmouth College Eye testing instrument

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2063015A (en) * 1932-06-20 1936-12-08 Dartmouth College Eye testing instrument

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3814942A (en) * 1972-11-10 1974-06-04 Acuity Syst Inc Human head restraint system
FR2307510A1 (en) * 1975-04-18 1976-11-12 Michael Henry Portable eye testing equipment - uses unmodulated infrared light from two transmitters, receivers and visible red light
US4102564A (en) * 1975-04-18 1978-07-25 Michael Henry L Portable device for the accurate measurement of eye movements both in light and obscurity
US4139280A (en) * 1975-09-03 1979-02-13 Carl Zeiss-Stiftung Head rest for ophthalmological examination
US4128317A (en) * 1977-06-01 1978-12-05 Lecover Maurice Positioning means for ophthalmic examinations
US4735498A (en) * 1984-11-19 1988-04-05 Per Udden Eye movement measuring apparatus
US4790647A (en) * 1984-12-06 1988-12-13 Dieter Mann Gmbh Examination unit
US4838681A (en) * 1986-01-28 1989-06-13 George Pavlidis Method and means for detecting dyslexia
US4755045A (en) * 1986-04-04 1988-07-05 Applied Science Group, Inc. Method and system for generating a synchronous display of a visual presentation and the looking response of many viewers
US4852988A (en) * 1988-09-12 1989-08-01 Applied Science Laboratories Visor and camera providing a parallax-free field-of-view image for a head-mounted eye movement measurement system
US20050254009A1 (en) * 2004-05-12 2005-11-17 Chris Baker Motorized patient support for eye examination or treatment
WO2005112738A2 (en) 2004-05-12 2005-12-01 Carl Zeiss Meditec, Inc. Motorized patient head support for eye examination or treatment
US7401921B2 (en) 2004-05-12 2008-07-22 Carl Zeiss Meditec, Inc. Motorized patient support for eye examination or treatment
US10363169B2 (en) 2010-05-10 2019-07-30 Tel Hashomer Medical Research Infrastructure And Services Ltd. System and method for treating an eye
US11564836B2 (en) 2010-05-10 2023-01-31 Ramot At Tel Aviv University Ltd. System and method for treating an eye
US20150201830A1 (en) * 2012-07-13 2015-07-23 Nestec Sa Devices and methods for measuring parameters associated with animal eye health
US9596984B2 (en) * 2012-07-13 2017-03-21 Nestec Sa Devices and methods for measuring parameters associated with animal eye health
US10702416B2 (en) 2013-02-26 2020-07-07 Belkin Laser Ltd. System for glaucoma treatment
WO2018144804A1 (en) * 2017-02-02 2018-08-09 Morankar Anand Mandibular/head positioner for patients undergoing anesthesia
US11382794B2 (en) 2018-07-02 2022-07-12 Belkin Laser Ltd. Direct selective laser trabeculoplasty
WO2023220148A1 (en) * 2022-05-10 2023-11-16 Mayo Foundation For Medical Education And Research Adjustable chin rest apparatus for visual field system

Similar Documents

Publication Publication Date Title
US3594072A (en) Head-holding fixture for use with visual instruments
US5661859A (en) Shoulder arthoscopy attachment
US4620697A (en) Surgical headrest
US6295671B1 (en) Medical surgical table including interchangeable orthopedic attachment and scanning table
US2560884A (en) Camera stand for medical photography
US3853372A (en) Wheelchair
US4643547A (en) Ophthalmic instrument support
US6138304A (en) Adjustable surgical support
US4542936A (en) Chiropractor's examination stool
CN112402032A (en) Head fixing device for ophthalmic therapy
US2612212A (en) Headrest for medical practice chairs
US4936836A (en) Drain bag support assembly
US10022043B2 (en) Shortened slit lamp microscope
JPS582321Y2 (en) headrest for ophthalmological examinations
US20180303335A1 (en) Shortened Slit Lamp Microscope
US4874236A (en) Ophthalmologic apparatus for fundus examination
US6712470B2 (en) System and method for measuring vision
KR100622200B1 (en) Chair for patients
US4076391A (en) Magnifying reading device and viewer
CN208838185U (en) A kind of fixation device of Multifunctional eye examination instrument
US4683582A (en) Portable roentgenographic cephalostat
CN111973146A (en) Strabismus detection device
US2337898A (en) Phorometer
CN221266140U (en) Multipurpose ophthalmic examination device for ophthalmology
CN219895702U (en) Auxiliary device for ophthalmic examination

Legal Events

Date Code Title Description
AS Assignment

Owner name: A. S. LABORATORIES, INC., 335 BEAR HILL ROAD, WALT

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:GULF & WESTERN MANUFACTURING COMPANY A CORP OF MI.;REEL/FRAME:004243/0415

Effective date: 19840404