US4823790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryogenic-and-ultrasonic scalpel
Assignee: Individual
•
Filing: 1987-05-28
•
Granted: 1989-04-25
•
Expires: 2007-05-28
Abstract
Abstract A cryogenic-and-ultrasonic scalpel includes a body, a source of ultrasonic vibrations positioned within the body, a hollow, frusto conical transformer connected to the source of ultrasonic vibrations, and a tubular heat exchanger for supplying refrigerant to the scalpel blade and draining the same therefrom the heat exchanger including inner and outer fluidly intercommunicating coaxial tubes, with the blade and the transformer connected to the outer tube, and ultrasonic vibrations being imparted to the outer tube and then to the blade through the transformer, and with refrigerant supplied through the inner tube, out from holes in the outer tube onto the inner side of the blade, and drained through the outer tube.
Inventors
- 👤 Boris I. Alperovich
- 👤 Ljutsia Paramonova
- 👤 Gennady Tjulkov
- 👤 Valery I. Soloviev
- 👤 Alexandr I. Paramonov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:26
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/32; A61B17/320068; A61B17/22; A61B17/22004; A61B17/22012; A61B18/00; A61B18/02; A61B18/0206; A61B2017/320082; A61B2017/320089; F; F25; F25B; F25B19/00; F25B19/005; Y; Y10; Y10S; Y10S128/00; Y10S128/27
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
129 words
A cryogenic-and-ultrasonic scalpel, comprising: blade means for dissecting biological tissues, said blade having a cutting edge; a body; a source of ultrasonic vibrations, said source being positioned within said body; a transformer positioned within said body and connected to said source of ultrasonic vibrations; a heat exchanger positioned within said body and including an outer tube and an inner tube arranged within said outer tube both of said tubes fluidly communicating with each other, said outer tube connected with and positioned within said transformer and said body and connected with said blade means to impart ultrasonic vibrations to said blade means through said outer tube; and said heat exchanger admitting a refrigerating agent to said blade means and withdrawing said agent from said blade means for cooling the latter.
Claim 2
Dependent Claim
129 words
A cryogenic-and-ultrasonic scalpel, comprising: blade means for dissecting biological tissues, said blade having a cutting edge; a body; a source of ultrasonic vibrations, said source being positioned within said body; a transformer positioned within said body and connected to said source of ultrasonic vibrations; a heat exchanger positioned within said body and including an outer tube and an inner tube arranged within said outer tube both of said tubes fluidly communicating with each other, said outer tube connected with and positioned within said transformer and said body and connected with said blade means to impart ultrasonic vibrations to said blade means through said outer tube; and said heat exchanger admitting a refrigerating agent to said blade means and withdrawing said agent from said blade means for cooling the latter.
Claim 3
Dependent Claim
48 words
A cryogenic and ultrasonic scalpel according to claim 1, wherein said transformer is made as a hollow annular body having a through bore coaxial with said outer tube of said tubular heat exchanger when said outer tube of said tubular heat exchanger is positioned within said through bore.
Claim 4
Dependent Claim
56 words
A cryogenic-and-ultrasonic scalpel according to claim 2, wherein said transformer has a hollow, frusto-conical configuration with a greater and a lesser base, said greater base being connected to said source of ultrasonic vibrations and said lesser base being connected to said outer tube of said heat exchanger so as to impart vibrations to said blade means.
Claim 5
Dependent Claim
38 words
A cryogenic-and-ultrasonic scalpel according to claim 2, wherein a longitudinal slit is made in said outer tube of said heat exchanger, and said blade means is tightly held in said longitudinal slit with said cutting edge extending outwardly.
Claim 6
Dependent Claim
38 words
A cryogenic-and-ultrasonic scalpel according to claim 1, wherein a longitudinal slit is made in said outer tube of said heat exchanger and said blade means is tightly held in said longitudinal slit with said cutting edge extending outwardly.
Claim 7
Dependent Claim
31 words
A cryogenic and ultrasonic scalpel according to claim 1, comprising an ultrasonic vibration pickup positioned inside said body for controlling the frequency of ultrasonic vibrations by said source of ultrasonic vibrations.
Claim 8
Dependent Claim
32 words
A cryogenic-and-ultrasonic scalpel according to claim 6, wherein said source of ultrasonic vibrations establishes an antinode zone of an ultrasonic wave, and said ultrasonic vibration pickup is located within said antinode zone.
Claim 9
Dependent Claim
41 words
A cryogenic-and-ultrasonic scalpel according to claim 1, wherein said blade means has an inner surface that faces into said outer tube of said heat exchanger, and at least a single-row comb is provided on said inner surface of said blade means.
Claim 10
Dependent Claim
30 words
A cryogenic and ultrasonic scalpel according to claim 8, wherein said inner tube of said heat exchanger has a plurality of holes which face toward said at least single-row comb.
Claim 11
Dependent Claim
92 words
A cryogenic-and-ultrasonic scalpel comprising: a blade having a cutting edge and an opposite rear side; a source of ultrasonic vibrations; a transformer for supplying said ultrasonic vibrations from said source to said blade; and a heat exchanger for cryogenically cooling said blade, said heat exchanger including a feed channel and a drain channel for a refrigerating agent, said drain channel including a cavity formed adjacent the rear side of said blade and said feed channel includes a feed pipe projecting into said drain channel and from which the refrigerating agent is supplied.
Claim 12
Dependent Claim
92 words
A cryogenic-and-ultrasonic scalpel comprising: a blade having a cutting edge and an opposite rear side; a source of ultrasonic vibrations; a transformer for supplying said ultrasonic vibrations from said source to said blade; and a heat exchanger for cryogenically cooling said blade, said heat exchanger including a feed channel and a drain channel for a refrigerating agent, said drain channel including a cavity formed adjacent the rear side of said blade and said feed channel includes a feed pipe projecting into said drain channel and from which the refrigerating agent is supplied.
Claim 13
Dependent Claim
37 words
A cryogenic-and-ultrasonic scalpel according to claim 10 wherein said feed pipe includes an axially extending slit opening distributed over the length of said blade, from which said refrigerating agent issues in the direction of said cutting edge.
Claim 14
Dependent Claim
32 words
A cryogenic-and-ultrasonic scalpel according to claim 10, wherein said drain cavity is formed by an outer pipe surrounding said feed pipe and having an axial slit in which said blade is held.
Claim 15
Dependent Claim
16 words
A cryogenic-and-ultrasonic scalpel according to claim 12, wherein said transformer is attached to said outer pipe.
Claim 16
Dependent Claim
35 words
A cryogenic-and ultrasonic scalpel according to claim 13, wherein said transformer is shaped as a hollow annular body into which coaxially extends said outer pipe and said feed pipe is inserted in said outer pipe.
Claim 17
Dependent Claim
37 words
A cryogenic-and-ultrasonic scalpel according to claim 14, wherein said transformer is shaped as a hollow cone frustum having its greater base attached to said source of vibrations and having its lesser base attached to said outer pipe.
Claim 18
Dependent Claim
20 words
A cryogenic-and ultrasonic scalpel according to claim 10, wherein surface-enlarging ribs are formed on the rear side of said blade.
Claim 19
Dependent Claim
18 words
A cryogenic-and-ultrasonic scalpel according to claim 16, wherein said ribs extend in an axial direction of said scalpel.
Claim 20
Dependent Claim
67 words
A cryogenic-and ultrasonic scalpel according to claim 17, wherein two ribs are provided symmetrically positioned with respect to a central plane of said scalpel and extend between said drain pipe and said slit opening, said ribs forming a groove therebetween and have side openings therein at the bottom of said groove through which the refrigerating agent issues from said groove to supply other ribs and said cavity
Claim 21
Dependent Claim
20 words
A cryogenic-and-ultrasonic scalpel according to claim 10 wherein said rear side of said blade has individually jutting surface enlarging columns.
Claim 22
Dependent Claim
199 words
A cryogenic-and-ultrasonic scalpel, comprising: a blade having a cutting edge used to dissect biological tissues; a body; a source of ultrasonic vibrations positioned within said body; a transformer positioned within said body and made as a hollow cone frustum having a greater base, a lesser base, and a through bore said greater base being connected to said source of ultrasonic vibrations; a heat exchanger positioned within said body and comprising an outer tube and an inner tube, both fluidly communicating with each other when said inner tube is coaxial with said outer tube said heat exchanger supplying a refrigerating agent to and withdrawing it from said blade for cooling the latter; said outer tube of said heat exchanger arranged coaxially in said through bore of said transformer and connected to said lesser base of said transformer so as to impart ultrasonic vibrations to said blade, a longitudinal slit formed in said outer tube and said blade held in said longitudinal slit with said cutting edge extending outwardly therefrom; and said blade having an inner surface that faces into said outer tube of said heat exchanger, and at least a single-row comb provided on said inner surface of said blade.
Claim 23
Dependent Claim
199 words
A cryogenic-and-ultrasonic scalpel, comprising: a blade having a cutting edge used to dissect biological tissues; a body; a source of ultrasonic vibrations positioned within said body; a transformer positioned within said body and made as a hollow cone frustum having a greater base, a lesser base, and a through bore said greater base being connected to said source of ultrasonic vibrations; a heat exchanger positioned within said body and comprising an outer tube and an inner tube, both fluidly communicating with each other when said inner tube is coaxial with said outer tube said heat exchanger supplying a refrigerating agent to and withdrawing it from said blade for cooling the latter; said outer tube of said heat exchanger arranged coaxially in said through bore of said transformer and connected to said lesser base of said transformer so as to impart ultrasonic vibrations to said blade, a longitudinal slit formed in said outer tube and said blade held in said longitudinal slit with said cutting edge extending outwardly therefrom; and said blade having an inner surface that faces into said outer tube of said heat exchanger, and at least a single-row comb provided on said inner surface of said blade.
References Cited (Backward Citations)
US3636943A
Cited
US3786814A
Cited
US3942519A
Cited
SU460869A1
Cited
US3918442A
Cited
SU556797A1
Cited
SU825056A1
Cited
US4528979A
Cited
SU1153901A1
Cited
US4609368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-24 | 1992-10-24 | 1993-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-24 | 1996-10-24 | 1997-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-24 | 2000-10-24 | 2001-04-25 | $7700.00 | Window Closed / Lapsed |