Patent US5681731A successfully refreshed from Google Patents.
Patent US1707836A successfully refreshed from Google Patents.
Patent US2624606A successfully refreshed from Google Patents.
EP0157593A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Laser instrument
Assignee: Codman and Shurtleff Inc
•
Filing: 1985-03-27
•
Granted: —
•
Expires: 2005-03-27
Abstract
Abstract A surgical tool for intercepting laser energy after it has energized a target site but before it energizes adjacent tissue.The instrument includes substrate of material having a high thermal conductivity for transmitting laser energy away from the surgical site and a highly absorbent surface material for absorbing radiant energy at the wavelength of the incident laser.
Inventors
- 👤 Rene Jopson Cabrera
- 👤 Thomas W. Eagar
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 21:08
CPC Classifications
A; A61; A61B; A61B90/00; A61B90/04
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
119 words
An instrument for intercepting electromagnetic energy of a specific wave length after it has energized a desired target site but before it energizes material adjacent to the target site comprising: a substrate of material having a high thermal conductivity for transmitting received energy away from the target site, said substrate having a peripheral surface; a coating material applied to substantially the entirety of said peripheral surface of said substrate, said coating material having a high absorptivity for energy at the wave length said instrument is intended to intercept and said surface material having a thickness which is large enough to provide high absorptivity but small enough to permit absorbed energy to be readily transferred to said high conductivity substrate.
Claim 2
Dependent Claim
119 words
An instrument for intercepting electromagnetic energy of a specific wave length after it has energized a desired target site but before it energizes material adjacent to the target site comprising: a substrate of material having a high thermal conductivity for transmitting received energy away from the target site, said substrate having a peripheral surface; a coating material applied to substantially the entirety of said peripheral surface of said substrate, said coating material having a high absorptivity for energy at the wave length said instrument is intended to intercept and said surface material having a thickness which is large enough to provide high absorptivity but small enough to permit absorbed energy to be readily transferred to said high conductivity substrate.
Claim 3
Dependent Claim
25 words
The instrument of Claim 1 wherein the thickness of said coating material is at least twenty-five percent of the wave length of the incident energy.
Claim 4
Dependent Claim
23 words
3 , The instrument of claim 1 or claim 2 wherein the thickness of said coating material is not greater than .001 inch.
Claim 5
Dependent Claim
25 words
4 . The instrument of any one of claims 1 to 3 wherein said substrate material is aluminum and said coating material is aluminum oxide.
Claim 6
Dependent Claim
23 words
The instrument of Claim 4 wherein said coating material is anodized aluminum oxide and the finish of said substrate is a satin finish.
Claim 7
Dependent Claim
24 words
The instrument of any one of claims 1 to 3 wherein said substrate is aluminium or copper and said coating material is stainless steel.
Claim 8
Dependent Claim
26 words
The instrument of any one of claims 1 to 3 wherein said substrate material is aluminium or copper and said coating material is a ceramic substance.
Claim 9
Dependent Claim
13 words
The instrument of claim 7 wherein said ceramic substance is applied by sputtering.
Claim 10
Dependent Claim
61 words
g. The instrument of any one of claims 1 to 3 wherein the electromagnetic energy is generated by a carbon dioxide laser, the target site is tissue at a surgical site, and said substrate material is aluminum and said coating material is anodized aluminum oxide, said surface material having a thickness substantially in the range of 4 microns to 12 microns.
Claim 11
Dependent Claim
46 words
The instrument of any one of claims 1 to 9 wherein said substrate includes a thin strip having an axial dimension much greater than its transverse dimension and having an axially extending opening extending throughout its entire length to permit cooling fluid to be introduced therethrough.
Claim 12
Dependent Claim
49 words
-The instrument of Claim 10 wherein said axially extending opening along said strip has at least one branch extending from said opening in the transverse direction and at least one second axially extending opening in fluid communication with said branch and extending to the distal end of said strip.
Claim 13
Dependent Claim
45 words
The instrument of Claim 10 or 11 wherein said substrate strip includes a plurality of channels extending axially completely along said strip from a single opening at the proximal/end of said strip to a plurality of openings at / the distal end of said strip.
Claim 14
Dependent Claim
45 words
13 . The apparatus of any one of claims 1 to 9 wherein said substrate material is an axially extending rod having an annular cross-section wherein the opening in said annulus forms a channel through said rod to permit irrigation fluid to be introduced therethrough.
Claim 15
Independent Claim
32 words
The apparatus of any one of claims 10 to 13 further including a handle connected to said substrate and adapted to provide fluid communication between said channel(s) and a source of fluid.
Claim 16
Dependent Claim
26 words
The instrument of any one of claims 1 to 14 further including a base material of an existing tool over which said substrate may be applied.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.