US4519389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoelectric cryoprobe
Assignee: Individual
•
Filing: 1981-03-23
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Granted: 1985-05-28
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Expires: 2001-03-23
Abstract
Abstract A thermoelectric cryoprobe comprising a handle composed of two electrically insulated halves made of a material possessing high heat conduction. One end of the handle is tapered, and a semiconductor cooling thermoelement is arranged at the butt of the tapered end. The height of the thermoelement does not exceed the radius thereof. The surface of a commutation plate of the thermoelement is the working surface of the thermoelectric cryoprobe.
Inventors
- 👤 Timofei S. Gudkin
- 👤 Evgeny K. Iordanishvili
- 👤 Nikolai S. Lidorenko
- 👤 Bella E. Malkovich
- 👤 Mikhail I. Razumovsky
- 👤 Igor B. Rubashov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:31
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/007; A61F9/00736; A61B; A61B18/00; A61B18/02; F; F02; F02C; F02C3/00; F02C3/04; F02C3/10; F02C6/00; F02C6/20; F02C9/00; F02C9/48; F02C9/56; F25; F25B; F25B21/00; F25B21/02; A61F7/00; A61F7/007; A61F2007/0075; F02B; F02B1/00; F02B1/02; F02B1/04; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
123 words
A thermoelectric cryoprobe, comprising: a handle comprising two electrically separated longitudinal half-cylinders made of a high heat conduction material; a semiconductor cooling thermoelement having a hot junction in contact with said two half-cylinders, said thermoelement including a commutation plate mounted on one end of said handle and in direct contact with the latter by said hot junction, the height of said thermoelement does not exceed its radius, and said commutation plate having a functional surface which is a working surface of said thermoelectric cryoprobe; a heat sink for removal of heat from said semiconductor cooling thermoelement, said heat sink comprising said two electrically separated longitudinal half-cylinders forming part of said handle; and means for feeding current to the longitudinal half-cylinders of said handle.
Claim 2
Dependent Claim
123 words
A thermoelectric cryoprobe, comprising: a handle comprising two electrically separated longitudinal half-cylinders made of a high heat conduction material; a semiconductor cooling thermoelement having a hot junction in contact with said two half-cylinders, said thermoelement including a commutation plate mounted on one end of said handle and in direct contact with the latter by said hot junction, the height of said thermoelement does not exceed its radius, and said commutation plate having a functional surface which is a working surface of said thermoelectric cryoprobe; a heat sink for removal of heat from said semiconductor cooling thermoelement, said heat sink comprising said two electrically separated longitudinal half-cylinders forming part of said handle; and means for feeding current to the longitudinal half-cylinders of said handle.
Claim 3
Dependent Claim
15 words
The probe of claim 1, wherein one of the ends of said handle is tapered.
Claim 4
Dependent Claim
16 words
The probe of claim 2, wherein said semiconductor cooling thermoelement is mounted on said tapered end.
Claim 5
Dependent Claim
25 words
The probe of claim 3, wherein said commutation plate has a thickness not exceeding 0.1 mm and forms the cold junction of said semiconductor thermoelement.
Claim 6
Dependent Claim
13 words
The probe of claim 1, including a dielectric gasket between said two half-cylinders.
Claim 7
Dependent Claim
24 words
The probe of claim 1, wherein said current feeding means includes an electrical connector connecting said two half-cylinders to a two core electrical cable.
Claim 8
Dependent Claim
19 words
The probe of claim 1, wherein said semiconductor thermoelement comprises two semi-washers connected to and by said commutation plate.
Claim 9
Dependent Claim
16 words
The probe of claim 7, wherein said commutation plate has a thickness not exceeding 0.1 mm.
Claim 10
Dependent Claim
34 words
The probe of claim 7, wherein said two electrically separated half-cylinders each have a butt end, and said semi-washers are soldered directly onto said butt ends to form hot junctions of said semiconductor thermoelement.
Claim 11
Dependent Claim
13 words
The probe of claim 9, wherein the surface of said handle is chrome-plated.
Claim 12
Dependent Claim
15 words
The probe of claim 1, wherein said thermoelement has a diameter not exceeding 2 mm.
Claim 13
Dependent Claim
16 words
The probe of claim 1, wherein the height of said thermoelement does not exceed 1 mm.
Claim 14
Dependent Claim
16 words
The probe of claim 1, wherein said commutation plate has a thickness not exceeding 0.1 mm.
Claim 15
Dependent Claim
137 words
A thermoelectric cryoprobe, comprising: a handle including two electrically separated longitudinal metal half-cylinders each made of a high heat conduction material; one end of said handle being tapered; a semiconductor cooling thermoelement having a hot junction and including a commutation plate mounted on said tapered end of said handle and in direct contact therewith by said hot junction, the height of said thermoelement does not exceed its radius, said hot junction being in contact with said two half-cylinders, and said commutation plate having a functional surface which is a working surface of said thermoelectric cryoprobe; a heat sink for removal of heat from said semiconductor cooling thermoelement, said heat sink including and being formed from said two electrically separated half-cylinders forming part of said handle; and means for feeding current to the longitudinal half-cylinders of said handle.
Claim 16
Dependent Claim
137 words
A thermoelectric cryoprobe, comprising: a handle including two electrically separated longitudinal metal half-cylinders each made of a high heat conduction material; one end of said handle being tapered; a semiconductor cooling thermoelement having a hot junction and including a commutation plate mounted on said tapered end of said handle and in direct contact therewith by said hot junction, the height of said thermoelement does not exceed its radius, said hot junction being in contact with said two half-cylinders, and said commutation plate having a functional surface which is a working surface of said thermoelectric cryoprobe; a heat sink for removal of heat from said semiconductor cooling thermoelement, said heat sink including and being formed from said two electrically separated half-cylinders forming part of said handle; and means for feeding current to the longitudinal half-cylinders of said handle.
Claim 17
Dependent Claim
14 words
The probe of claim 14, including a dielectric gasket between said two metal half-cylinders.
Claim 18
Dependent Claim
25 words
The probe of claim 15, wherein said current feeding means includes an electrical connector connecting said two metal half-cylinders to a two core electrical cable.
Claim 19
Dependent Claim
19 words
The probe of claim 16, wherein said semiconductor thermoelement comprises two semi-washers connected to and by said commutation plate.
Claim 20
Dependent Claim
28 words
The probe of claim 17, wherein said semi-washers are soldered directly onto butt ends of said two electrically separated half-cylinders to form hot junctions of said semi-conductor thermoelement.
Claim 21
Dependent Claim
25 words
The probe of claim 18, wherein said commutation plate has a thickness not exceeding 0.1 mm and forms the cold junction of said semiconductor thermoelement.
Claim 22
Dependent Claim
22 words
The probe of claim 19, wherein said thermoelement has a diameter not exceeding 2 mm and a height not exceeding 1 mm.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-27 | 1988-11-26 | 1989-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-27 | 1992-11-26 | 1993-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-27 | 1996-11-26 | 1997-05-28 | $7700.00 | Window Closed / Lapsed |