Patent US5283808A successfully refreshed from Google Patents.
US5283808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray device having a co-axial laser aiming system in an opposed configuration
Assignee: Diasonics Inc
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Filing: 1992-07-01
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Granted: 1994-02-01
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Expires: 2012-07-01
Abstract
Abstract An improved x-ray laser aiming system providing coaxial laser aiming in a configuration opposed to the x-ray emitter is disclosed. The present invention comprises two basic components: 1) a laser sight coupled to an x-ray emitter, and 2) a laser housing coupled to an x-ray collector. The laser sight provides a means for aligning the x-ray emitter with a laser beam during surgical or diagnostic procedures. The laser housing is removably coupled to the image intensifier or x-ray collector. The laser housing contains a point laser source and a fixed reflective surface or mirror for directing a laser beam coaxially with the center ray of the x-rays emitted by the x-ray emitter, but in the opposite direction. The laser source is, therefore, in a configuration opposed or opposite to the x-ray emitter. The laser aiming system of the present invention may be used to provide a reference point during orthopedic alignment procedures such as pinning and for vascular procedures such as balloon angioplasty, and correction of conditions involving embolisms, aneurysms, or arterial venous malformations (AVM's).
Inventors
- 👤 Steven L. Cramer
- 👤 Li Yuan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:02
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/17; A61B17/1725; A61B17/1703; A61B6/00; A61B6/08; A61B90/00; A61B90/10; A61B90/11; A61B90/13
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
143 words
A laser aiming system for use with an x-ray machine having an x-ray emitter for emitting x-rays and an x-ray collector for receiving said x-rays, said laser aiming system comprising: a) a laser housing removably coupled to said x-ray collector, said laser housing including: i) a laser light source adjustably coupled to an outer perimeter of said laser device assembly, said laser light source producing a visible point laser beam, ii) a power source coupled to said laser device assembly and said laser light source, and iii) a laser light reflector immovably coupled to the center of said laser housing for redirecting said laser beam into coaxial alignment with said x-rays emitted by said x-ray emitter; and b) a laser sight removably coupled to said x-ray emitter, said laser sight having a radio-opaque reference mark disposed at the center of said laser sight.
Claim 2
Dependent Claim
143 words
A laser aiming system for use with an x-ray machine having an x-ray emitter for emitting x-rays and an x-ray collector for receiving said x-rays, said laser aiming system comprising: a) a laser housing removably coupled to said x-ray collector, said laser housing including: i) a laser light source adjustably coupled to an outer perimeter of said laser device assembly, said laser light source producing a visible point laser beam, ii) a power source coupled to said laser device assembly and said laser light source, and iii) a laser light reflector immovably coupled to the center of said laser housing for redirecting said laser beam into coaxial alignment with said x-rays emitted by said x-ray emitter; and b) a laser sight removably coupled to said x-ray emitter, said laser sight having a radio-opaque reference mark disposed at the center of said laser sight.
Claim 3
Dependent Claim
29 words
The laser aiming system as claimed in claim 1 wherein said laser housing further includes spring clips coupled thereto for removably coupling said laser housing to said x-ray collector.
Claim 4
Dependent Claim
22 words
The laser aiming system as claimed in claim 1 wherein said power source is a battery disposed within said laser device assembly.
Claim 5
Dependent Claim
50 words
The laser aiming system as claimed in claim 1 wherein said laser housing further includes a switch coupled to said laser housing and electrically coupled to said power source and said laser light source, said switch for selectively electrically connecting or disconnecting said laser light source with said power source.
Claim 6
Dependent Claim
36 words
The laser aiming system as claimed in claim 1 wherein said laser housing further includes orthogonal adjustment screws for adjusting the orientation of said laser light source and the direction of said laser beam emitted therefrom.
Claim 7
Dependent Claim
19 words
The laser aiming system as claimed in claim 1 wherein said laser light source is a semiconductor laser device.
Claim 8
Dependent Claim
23 words
The laser aiming system as claimed in claim 6 wherein said semiconductor laser device has a power rating of at least 3-5 milliwatts.
Claim 9
Dependent Claim
18 words
The laser aiming system as claimed in claim 1 wherein said power source is a nine volt battery.
Claim 10
Dependent Claim
27 words
The laser aiming system as claimed in claim 1 wherein said x-ray emitter is positioned below the level of a patient being radiated by said x-ray emitter.
Claim 11
Dependent Claim
19 words
The laser aiming system as claimed in claim 1 wherein said laser light reflector is a radio-lucent plastic mirror.
Claim 12
Dependent Claim
141 words
With a laser aiming system and an x-ray machine having an x-ray emitter for emitting x-rays and an x-ray collector for receiving said x-rays, said laser aiming system having a laser device assembly including an adjustably mounted laser light source emitting a visible point laser beam and a laser sight including radio-opaque reference mark disposed at the center of said laser sight, a process for positioning said x-ray machine comprising the steps of: a) removably attaching said laser housing to said x-ray collector and energizing said laser light source; b) removably attaching said laser sight to said x-ray emitter and energizing said x-ray emitter; c) moving said x-ray emitter until said radio-opaque reference mark is positioned at a desired point on a subject; and d) operating upon a point of said subject identified by a location illuminated by said laser beam.
Claim 13
Dependent Claim
141 words
With a laser aiming system and an x-ray machine having an x-ray emitter for emitting x-rays and an x-ray collector for receiving said x-rays, said laser aiming system having a laser device assembly including an adjustably mounted laser light source emitting a visible point laser beam and a laser sight including radio-opaque reference mark disposed at the center of said laser sight, a process for positioning said x-ray machine comprising the steps of: a) removably attaching said laser housing to said x-ray collector and energizing said laser light source; b) removably attaching said laser sight to said x-ray emitter and energizing said x-ray emitter; c) moving said x-ray emitter until said radio-opaque reference mark is positioned at a desired point on a subject; and d) operating upon a point of said subject identified by a location illuminated by said laser beam.
Claim 14
Dependent Claim
31 words
The process as claimed in claim 11 wherein said x-ray emitter is positioned below the level of said subject and said x-ray collector is positioned above the level of said subject.
Claim 15
Dependent Claim
30 words
The process as claimed in claim 11 further including a step of adjusting the orientation of said laser light source by aligning said laser beam with said radio-opaque reference mark.
Claim 16
Dependent Claim
31 words
The process as claimed in claim 11 further including the steps of: a) removing said laser housing from said x-ray collector; and b) removing said laser sight from said x-ray emitter.
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) | 1997-01-31 | 1997-08-02 | 1998-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-31 | 2001-08-02 | 2002-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-31 | 2005-08-02 | 2006-02-01 | $7700.00 | Window Closed / Lapsed |