US4516190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical headlamp
Assignee: ARK CLO 2000-1 Ltd
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Filing: 1983-12-29
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Granted: 1985-05-07
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Expires: 2003-12-29
Abstract
Abstract A surgical headlamp is disclosed that is removably mounted to a headband and which utilizes a remote light source connected via a fiberoptic cable. The mounting arrangement includes frictional sliding members permitting adjustment of the lamp to an exact in between the eyes location.
Inventors
- 👤 Jacobus Kloots
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:45
CPC Classifications
F; F21; F21L; F21L14/00; F21V; F21V21/00; F21V21/08; F21V21/084; G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0005; G02B6/0008; F21V11/00; F21V11/08; F21V11/10; Y; Y10; Y10S; Y10S362/00; Y10S362/804
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
184 words
A surgical headlamp for use between the eyes comprising: (a) a headband; (b) an annular clamp supported from said headband; (c) a cylindrical upper housing slideably mounted in said clamp; (d) a condenser lens assembly in said upper housing; (e) a sleeve secured in said housing clamping said lens assembly in place; (f) a detent in said sleeve for securing a fiberoptic cable connector in position facing said lens assembly; (g) a lower housing secured to said upper housing; (h) a reflector mounted in said lower housing facing said lens assembly substantially at a 45° angle; and, (i) a field lens mounted in said lower housing facing said reflector substantially at a 45° angle, said lens assembly, said reflector and said field lens being selected and positioned so that light entering through a fiberoptic cable at said sleeve is focussed and then collimated into a beam which passes out through said field lens with a predetermined spot diameter substantially at an angle of 90° from the axis of entry, said upper housing being slideably movable in said clamp for positioning between a wearer's eyes.
Claim 2
Dependent Claim
184 words
A surgical headlamp for use between the eyes comprising: (a) a headband; (b) an annular clamp supported from said headband; (c) a cylindrical upper housing slideably mounted in said clamp; (d) a condenser lens assembly in said upper housing; (e) a sleeve secured in said housing clamping said lens assembly in place; (f) a detent in said sleeve for securing a fiberoptic cable connector in position facing said lens assembly; (g) a lower housing secured to said upper housing; (h) a reflector mounted in said lower housing facing said lens assembly substantially at a 45° angle; and, (i) a field lens mounted in said lower housing facing said reflector substantially at a 45° angle, said lens assembly, said reflector and said field lens being selected and positioned so that light entering through a fiberoptic cable at said sleeve is focussed and then collimated into a beam which passes out through said field lens with a predetermined spot diameter substantially at an angle of 90° from the axis of entry, said upper housing being slideably movable in said clamp for positioning between a wearer's eyes.
Claim 3
Dependent Claim
21 words
A surgical headlamp according to claim 1 wherein said annular clamp retains a plurality of O-rings acting as frictional slide bearings.
Claim 4
Dependent Claim
26 words
A surgical headlamp according to claim 2 wherein said cylindrical upper housing retains two O-rings serving as end limits for the slide movement of said clamp.
Claim 5
Dependent Claim
33 words
A surgical headlamp according to claim 1 wherein said lower housing is secured to said upper housing by an adapter ring containing an iris assembly for changing the diameter of the illuminating beam.
Claim 6
Dependent Claim
49 words
A surgical headlamp for use between the eyes comprising: (a) a headband; (b) a spring-detented coupling having a first part and a second part; (c) fastening means securing said first part to said headband; (d) a lamp assembly; (e) connecting means suspending said lamp assembly from said second part.
Claim 7
Dependent Claim
49 words
A surgical headlamp for use between the eyes comprising: (a) a headband; (b) a spring-detented coupling having a first part and a second part; (c) fastening means securing said first part to said headband; (d) a lamp assembly; (e) connecting means suspending said lamp assembly from said second part.
Claim 8
Dependent Claim
54 words
A surgical headlamp according to claim 5 wherein said first part contains two outwardly projecting pins, said second part contains two apertures matching said pins and spring-loaded detents located in said two apertures to mate with annular recesses in said pins so as to removably lock said first part and said second part together.
Claim 9
Dependent Claim
41 words
A surgical headlamp according to claim 5 wherein said connecting means is a linking assembly pivotally connected with friction pivots at one end to said second part and at a second end to an annular clamp slideably holding said lamp assembly.
Claim 10
Dependent Claim
41 words
A surgical headlamp according to claim 7 wherein said second part has a protruding tab to which said linking assembly is connected and said annular clamp has a protruding tab to which said linking assembly is connected at said second end.
Claim 11
Dependent Claim
22 words
A surgical headlamp according to claim 8 wherein said headlamp assembly comprises a cylindrical upper housing slideably mounted in said annular clamp.
Claim 12
Dependent Claim
27 words
A surgical headlamp according to claim 9 further comprising O-rings retained in said annular clamp and acting as frictional slide bearings riding against said cylindrical upper housing.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-06 | 1988-11-05 | 1989-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-06 | 1992-11-05 | 1993-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-06 | 1996-11-05 | 1997-05-07 | $7700.00 | Window Closed / Lapsed |