US4517973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laser scalpel
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1982-07-06
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Granted: 1985-05-21
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Expires: 2002-07-06
Abstract
Abstract A laser scalpel in which optical fiber is used as the optical wave guide and the optical fiber is guided from a laser main body housing a laser source therein to the areas to be irradiated along a shore means provided on the laser main body is disclosed. The optical fiber is provided with a hand piece on the exterior of the forward end portion. The hand piece is so constructed that it facilitates the directing of the forward end of the fiber toward the areas to be irradiated. A supporting wire means is provided along the shore means so as to be axially movable. The forward end of the wire means is connected to the hand piece and the rear end of the wire means is connected to a balancing means for counter-balancing at least the weight of said hand piece.
Inventors
- 👤 Katsuyoshi Sunago
- 👤 Shinya Takenaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:13
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B18/22; A61B2018/225; A61B90/00; A61B90/50; A61B2090/5025; A61B2090/504
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
145 words
A laser scalpel using an optical fiber for an optical wave guide said optical fiber being guided from a laser main body, housing a laser source therein, to areas to be irradiated by said laser scalpel, wherein: shore means provided on the laser main body for guiding said optical fiber, said optical fiber being provided with a hand piece on the exterior of one end thereof, said hand piece facilitating directing of the one end of said fiber toward the areas to be irradiated, and a supporting wire means, provided along said shore means, for permitting axial movement of itself along the lengthwise axis of said shore means, a forward end of said wire means being connected to said hand piece and a rear end of said wire means being connected to a balancing means for counter-balancing at least the weight of said hand piece.
Claim 2
Dependent Claim
145 words
A laser scalpel using an optical fiber for an optical wave guide said optical fiber being guided from a laser main body, housing a laser source therein, to areas to be irradiated by said laser scalpel, wherein: shore means provided on the laser main body for guiding said optical fiber, said optical fiber being provided with a hand piece on the exterior of one end thereof, said hand piece facilitating directing of the one end of said fiber toward the areas to be irradiated, and a supporting wire means, provided along said shore means, for permitting axial movement of itself along the lengthwise axis of said shore means, a forward end of said wire means being connected to said hand piece and a rear end of said wire means being connected to a balancing means for counter-balancing at least the weight of said hand piece.
Claim 3
Dependent Claim
14 words
The laser scalpel of claim 1, wherein said balancing means comprises a counter-balance weight.
Claim 4
Dependent Claim
16 words
The laser scalpel of claim 1, wherein said balancing means comprises a spring loaded wire drum.
Claim 5
Dependent Claim
54 words
The laser scalpel of claim 1, wherein: said shore means comprises an upright post standing on said laser main body and a horizontal arm fixed to said post at one end thereof, the one end of said fiber being hung down from another end of said arm which is not fixed to said post.
Claim 6
Dependent Claim
34 words
The laser scalpel of claim 4, wherein: said balancing means counter-balances the combined weight of said hand piece and the portion of said fiber which hangs down from said another end of said arm.
Claim 7
Dependent Claim
12 words
The laser scalpel of claim 1, wherein said hand piece is L-shaped.
Claim 8
Dependent Claim
159 words
A laser scalpel, comprising: a main laser body housing; a laser source mounted in said laser body housing; an optical fiber connected at one end, defined as its rear end, to said laser source; shore means, fixedly supported on said main body, for guiding said optical fiber so that its other end, defined as its forward end, is positioned for irradiating areas to be treated by said laser scalpel; a hand piece attached to said forward end of said optical fiber for facilitating the directing of said forward end; wire means, connected at one of its ends to said hand piece and supported along the length of said shore means for fully supporting said hand piece and for providing axial movement of wire included in said wire means along the axial length of said shore means; and balancing means connected to the other end of said wire means for fully counterbalancing at least the weight of said hand piece.
Claim 9
Dependent Claim
159 words
A laser scalpel, comprising: a main laser body housing; a laser source mounted in said laser body housing; an optical fiber connected at one end, defined as its rear end, to said laser source; shore means, fixedly supported on said main body, for guiding said optical fiber so that its other end, defined as its forward end, is positioned for irradiating areas to be treated by said laser scalpel; a hand piece attached to said forward end of said optical fiber for facilitating the directing of said forward end; wire means, connected at one of its ends to said hand piece and supported along the length of said shore means for fully supporting said hand piece and for providing axial movement of wire included in said wire means along the axial length of said shore means; and balancing means connected to the other end of said wire means for fully counterbalancing at least the weight of said hand piece.
Claim 10
Dependent Claim
14 words
The laser scalpel of claim 7, wherein said balancing means comprises a counterbalance weight.
Claim 11
Dependent Claim
16 words
The laser scalpel of claim 7, wherein said balancing means comprises a spring loaded wire drum.
Claim 12
Dependent Claim
56 words
The laser scalpel of claim 7, wherein said shore means comprises an upright post standing at its lower end on said laser main body housing and a horizontal arm fixed at its one end to the upper end of said post, the forward portion of said fiber depending from the other end of said horizontal arm.
Claim 13
Dependent Claim
24 words
The laser scalpel of claim 10, wherein said balancing means counterbalances the combined weight of said hand piece and depending portion of said fiber.
Claim 14
Dependent Claim
12 words
The laser scalpel of claim 7, wherein said hand piece is L-shaped.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-20 | 1988-11-19 | 1989-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-20 | 1992-11-19 | 1993-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-20 | 1996-11-19 | 1997-05-21 | $7700.00 | Window Closed / Lapsed |