EP0384672A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Ultrasonic surgical scalpel
Assignee: Individual
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Filing: 1990-02-16
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Granted: —
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Expires: 2010-02-16
Abstract
Abstract An ultrasonic surgical scalpel comprising a suction nozzle (4) having a suction mouth (4b, 14b, 24b, 34b) which is open aside toward the direction different from that of the axis (X) of the nozzle (4), and a suction regulating mouth (7) formed in a suction pipe extending from the suction nozzle (4) so as to communicate with a suction passage (4a) inside the suction nozzle. The suction mouth (4b, 14b, 24b, 34b) being open aside allows the leading end of the nozzle (4) to be made acute or round, thereby to enable the suction nozzle to be readily inserted and moved in subcutaneous or organic tissues while shattering the tissues with ultrasonic vibrations. When sucking out the tissues shattered with the vibrations, by selectively opening and closing the suction regulating mouth (7) with a finger tip, sucking force for sucking out the tissues can be freely controlled with ease.
Inventors
- 👤 Haruo Takase
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 02:42
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320068; A61B2017/32007; A61B2017/320084; A61B2217/00; A61B2217/002; A61B2217/005; A61B2217/007; A61M; A61M1/00; A61M1/71; A61M1/74; A61M1/741; A61M1/7411; A61M2202/00; A61M2202/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
129 words
An ultrasonic surgical scalpel comprising a handpiece (1); an ultrasonic vibrator (2) contained within said handpiece (1), which generates ultrasonic vibrations by being applied with an alternating current; and a horn (3) formed with a suction nozzle (4), characterised in that said horn (3) is connected to said vibrator (2) and adapted to transmit the vibrations to its leading end, said suction nozzle (4) is provided at its leading end with a suction mouth (4b, 14b, 24b, 34b) open in the direction different from the axial direction (X) of the horn (3) and a suction passage (4a) thereinside, and said handpiece (1) is provided with a suction regulating mouth (7) which communicates with said suction passage (4a) inside said horn (3) and is operatable directly with a finger tip.
Claim 2
Dependent Claim
129 words
An ultrasonic surgical scalpel comprising a handpiece (1); an ultrasonic vibrator (2) contained within said handpiece (1), which generates ultrasonic vibrations by being applied with an alternating current; and a horn (3) formed with a suction nozzle (4), characterised in that said horn (3) is connected to said vibrator (2) and adapted to transmit the vibrations to its leading end, said suction nozzle (4) is provided at its leading end with a suction mouth (4b, 14b, 24b, 34b) open in the direction different from the axial direction (X) of the horn (3) and a suction passage (4a) thereinside, and said handpiece (1) is provided with a suction regulating mouth (7) which communicates with said suction passage (4a) inside said horn (3) and is operatable directly with a finger tip.
Claim 3
Dependent Claim
53 words
An ultrasonic surgical scalpel according to claim 1, characterised in that said horn (3) is supported by a supporting member (5) at a point (Ps) substantially one-fourth wavelength (λ) of the vibration generated by the vibrator (2) away from a connection point (Pa) at which said horn (3) and vibrator (2) are connected.
Claim 4
Dependent Claim
37 words
An ultrasonic surgical scalpel according to claim 1 or claim 2, characterised in that said suction mouth (4b) is formed by cutting aslant said suction nozzle (4) to form said leading end of the suction nozzle (4).
Claim 5
Dependent Claim
51 words
An ultrasonic surgical scalpel according to claim 1 or claim 2, characterised in that said leading end of the suction nozzle (4) is covered with a slant ellipse plate in a blind state, and said suction nozzle (4) has a circumferential side surface in which said suction mouth (14b) is formed.
Claim 6
Dependent Claim
51 words
An ultrasonic surgical scalpel according to claim 1 or claim 2, characterised in that said leading end of the suction nozzle (4) is formed perpendicularly to its axis (X) in a blind state, and said suction nozzle (4) has a circumferential side surface in which said suction mouth (24b) is formed.
Claim 7
Dependent Claim
45 words
An ultrasonic surgical scalpel according to claim 1 or claim 2, characterised in that the leading end of said suction nozzle (4) is in a round shape, and said suction nozzle (4) has a circumferential side surface in which said suction mouth (34b) is formed.
Claim 8
Dependent Claim
35 words
An ultrasonic surgical scalpel according to any of claims 1 to 6, characterised in that said suction nozzle (4) has a length substantially three-fourth the wavelength (λ) of the vibration generated by said vibrator (2).
Claim 9
Dependent Claim
44 words
An ultrasonic surgical scalpel according to any of claims 1 to 7, characterised by further comprising a flushing pipe (12) provided along said suction nozzle (4) so as to supply cleaning fluid or the like to around said suction mouth (4b, 14b, 24b, 34b).
Claim 10
Dependent Claim
31 words
An ultrasonic surgical scalpel according to any of claims 1 to 8, characterised by further comprising a lid member (7a) capable of being detachably fitted in said suction regulating mouth (7).
References Cited (Backward Citations)
No citation records indexed.
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