US3868171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical microscope
Assignee: J K Hoppl Corp
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Filing: 1973-03-09
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Granted: 1975-02-25
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Expires: 1993-03-09
Abstract
Abstract A surgical microscope includes a mount which tiltably connects the objective and eyepiece lens package to the microscope''s cantilever arm. The mount permits the objective lens to be moved through a specified arc, at all times maintaining a fixed distance from the focused field of view, thus permitting viewing the operative field through an angular range without the necessity for refocusing. A track member is rotatably connected to the cantilever arm and includes provision to accommodate a follower, at the lower end of which the lens systems are suitably connected. A motor is mounted in the follower and includes a gear which is received in a slot in the track member and which gear meshes with an arcuate shaped rack. The motor drives the gear, which in turn, drives the follower along the track member. The motor is controlled by means of a foot pedal.
Inventors
- 👤 Josef K Hoppl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:22
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/18; G02B21/20
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
113 words
In a surgical microscope of the type comprising a base member, a cantilever arm mounted on said base member, and objective and eyepiece lens means, a mount to tiltably connect said objective and eyepiece lens means to said cantilever arm which comprises, track means connected to said cantilever arm, follower means slidably received in said track means, said objective and eyepiece lens means connected to said follower means, and means to move said follower means with respect to said track means, said track means and said follower means cooperating such that a field of view of the objective lens means remains in focus throughout the entire range of movement of the follower means.
Claim 2
Dependent Claim
113 words
In a surgical microscope of the type comprising a base member, a cantilever arm mounted on said base member, and objective and eyepiece lens means, a mount to tiltably connect said objective and eyepiece lens means to said cantilever arm which comprises, track means connected to said cantilever arm, follower means slidably received in said track means, said objective and eyepiece lens means connected to said follower means, and means to move said follower means with respect to said track means, said track means and said follower means cooperating such that a field of view of the objective lens means remains in focus throughout the entire range of movement of the follower means.
Claim 3
Dependent Claim
57 words
The microscope of claim 1 wherein said track means is arcuate, all circumferential points thereof being the same distance from the field of view, whereby as the follower means is moved relative to said track means, said field of view remains in focus permitting the viewing thereof through an angular range without refocusing the objective lens means.
Claim 4
Dependent Claim
26 words
The microscope of claim 2 wherein the follower means angularly depends from said track means generally radially with respect to the arc of said track means.
Claim 5
Dependent Claim
86 words
The microscope of claim 2 wherein said follower means comprises a beam slidably connected to said track means at one end and supporting said objective and eyepiece lens means at its other end, said objective and eyepiece lens means being movable through an arc corresponding to the arc of said track means and also rotatable about an axis perpendicular to the cantilever arm, whereby said objective and eyepiece lens means remain a generally fixed distance from the field of view during any combination of aforesaid movements.
Claim 6
Dependent Claim
78 words
In the microscope of claim 2 said means to move said follower means with respect to said track means includes motor means mounted in said follower means, a gear driven by said motor, said gear being received in a slot in said track means, a rack in said track means received in said slot and said gear being driven along said rack, said rack being arcuate and having the same general arc as that of said follower means.
Claim 7
Dependent Claim
17 words
The microscope according to claim 1 wherein said track means is rotatably connected to said cantilever arm.
Claim 8
Dependent Claim
74 words
The microscope recited in claim 1 wherein said track means is arcuate, all circumferential points thereof being the same distance from the field of view, said track means is rotatable about an axis perpendicular to the cantilever arm, whereby said follower means can be moved relative to said track means and said track means can be rotated about said axis, in any combination of the aforesaid movements, said field of view remaining in focus.
Claim 9
Dependent Claim
26 words
The microscope of claim 7 wherein the follower means angularly depends from said track means generally radially with respect to the arc of said track means.
Claim 10
Dependent Claim
15 words
The microscope recited in claim 1 wherein said follower means depends from said track means.
Claim 11
Dependent Claim
30 words
The microscope of claim 1 wherein said track means includes slotted slide rails, said follower means includes bearings rotatably journaled therein, and said bearings are received between said slide rails.
Claim 12
Dependent Claim
25 words
The microscope of claim 1 including stop means at the respective ends of said track means to limit the movemEnt of said follower means therealong.
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) | 1978-02-24 | 1978-08-26 | 1979-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-24 | 1982-08-26 | 1983-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-24 | 1986-08-26 | 1987-02-25 | $7700.00 | Window Closed / Lapsed |