EP0075912A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Laser surgical equipment
Assignee: Hitachi Ltd
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Filing: 1982-09-27
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Granted: —
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Expires: 2002-09-27
Abstract
Abstract In a laser surgical equipment consisting of a laser oscillator oscillating a laser output, an optical waveguide connected to the laser oscillator and transmitting the laser output and a hand piece connected to the optical waveguide and radiating the laser output to a diseased part to be radiated, the improvement comprising detection means for detecting the laser output from the hand piece, comparison means for comparing the output of the detection means with a predetermined value and control means for controlling the laser oscillator by the output of the comparison means and for setting the laser output of the hand piece to the predetermined value.
Inventors
- 👤 Tamotsu Shimada
- 👤 Chiaki Shinbo
- 👤 Hideyuki Horiuchi
- 👤 Masamoto Takatsuji
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 19:31
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/0096; A; A61; A61B; A61B18/00; A61B18/18; A61B18/20; A61B17/00; A61B2017/00681; A61B2017/00725; A61B2018/00636
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
107 words
In a laser surgical equipment including a laser oscillator (2) oscillating a laser output, an optical waveguide (3) connected to said laser oscillator (2) and transmitting the laser output and a hand piece (4) connected to said optical waveguide (3) and radiating the laser output to a diseased part (5) to be radiated, the improvement comprising: first detection means (20) for detecting the laser output from said hand piece (4); comparison means (40) for comparing the output of said detection means (20) with a predetermined value; and control means (9) for controlling the laser output of said laser oscillator (2) by the output of said comparison means'(40).
Claim 2
Dependent Claim
107 words
In a laser surgical equipment including a laser oscillator (2) oscillating a laser output, an optical waveguide (3) connected to said laser oscillator (2) and transmitting the laser output and a hand piece (4) connected to said optical waveguide (3) and radiating the laser output to a diseased part (5) to be radiated, the improvement comprising: first detection means (20) for detecting the laser output from said hand piece (4); comparison means (40) for comparing the output of said detection means (20) with a predetermined value; and control means (9) for controlling the laser output of said laser oscillator (2) by the output of said comparison means'(40).
Claim 3
Dependent Claim
55 words
The laser surgical equipment as defined in claim 1 which further includes holding means (44) for holding the output of said comparison means (40), said holding means (44) controlling the laser output of said laser oscillator (2) during the period other than the period in which said first detection means (20) detect the laser output.
Claim 4
Dependent Claim
76 words
The laser surgical equipment as defined in claim 2 wherein said first detection means (20) consist of a case (22) having a holding member (24) for holding said hand piece (4) while said hand piece (4) is fitted to one end of said holding member (24), and a photoelectric conversion element (21) disposed so as to receive the laser light while said hand piece (4) is inserted into said holding member (24) inside said case (22).
Claim 5
Dependent Claim
52 words
The laser surgical equipment as defined in claim 3 wherein menas (16) for detecting the insertion of said hand piece (4) are disposed on said holding member (24), and the output of said means (16) is used for detecting the period in which said first detection means (20) detect the laser output.
Claim 6
Dependent Claim
22 words
The laser surgical equipment as defined in claim 3 or 4 wherein said case (22) is disposed on a control panel (61).
Claim 7
Dependent Claim
16 words
The laser surgical equipment as defined in claim 5 wherein said case (22) is disposed detachably.
Claim 8
Dependent Claim
29 words
The laser surgical equipment as defined in claim 1 wherein said first detection means (20) consist of a photoelectric conversion element (21) disposed detachably on said hand piece (4).
Claim 9
Dependent Claim
55 words
The laser surgical equipment as defined in claim 1 which further includes second detection means (11, 12, 13) for detecting the laser output of said laser oscillator (2) and display means (50) for displaying the laser output of said hand piece (4) by use of the output of said second detection means (11, 12, 13).
Claim 10
Dependent Claim
49 words
The laser surgical equipment as defined in claim 8 which further includes conversion means (51) for converting the output of said second detection means (11, 12, 13) into the output of said first detection means (20), and said display means (50) display the output of said conversion means (51).
Claim 11
Dependent Claim
50 words
The laser surgical equipment as defined in claim 9 which further includes change-over means (52) for receiving the output of said first detection means (20) and the output of said conversion means (51) and applying either of the outputs to said comparison means (40) and to said display means (50).
Claim 12
Dependent Claim
44 words
The laser surgical equipment as defined in claim 10 which further includes means (16) for detecting the period in which said first detection means (20) detect the laser output and the output of said means (20) is used for controlling said change-over means (52).
Claim 13
Dependent Claim
67 words
The laser surgical equipment as defined in claim 8 which further includes memory means (82) for storing the oscillation current of said laser oscillator (2), the output of said first detection means (20) and the output of said second detection means (11, 12,,13), and determination means (.86) for determining whether or not said laser surgical equipment operates normally, by analyzing the content of said memory means (82).
Claim 14
Dependent Claim
45 words
The laser surgical equipment as defined in claim 12 wherein said determination means (86) are means for determining the normality and abnormality of said laser oscillator (2) from the relation between said oscillation current and the output of said second detection means (11, 12, 13).
Claim 15
Dependent Claim
55 words
The laser surgical equipment as defined in claim 12 wherein said determination means (86) are means for determining the normality and abnormality of said optical waveguide (3) or said hand piece (4) from the relation between the output of said first detection means (20) and the output of said second detection means (11, 12, 13).
References Cited (Backward Citations)
No citation records indexed.
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