US3918442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surgical instrument for ultrasonic joining of biological tissue
Assignee: Individual
•
Filing: 1974-10-03
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Granted: 1975-11-11
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Expires: 1994-10-03
Abstract
Abstract An ultrasonic instrument for use in welding and depositing biological osseous tissue. The instrument is essentially a source of ultrasonic oscillations, comprising an oscillator and a halfwave concentrator which passes gradually into a welding tip not placed in direct contact with both fragments of osseous tissue, which are being joined and which have biological material preliminarily placed therebetween. The welding tip is essentially a blade made from a titanium alloy and having flat faces made bevel at an angle of 90* + OR - 45* relative to the longitudinal axis from the free end of the tip to the point at which the latter starts gradually passing into the concentrator.
Inventors
- 👤 Georgy Alexandrovich Nikolaev
- 👤 Vladimir Ivanovich Loschilov
- 👤 Sergei Mikhailovich Volkov
- 👤 Viktor Grigorievich Vedenkov
- 👤 Valery Dmitrievich Leonichev
- 👤 Valentin Alexandrovic Polyakov
- 👤 Mstislav Vasilievich Volkov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:01
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/88; A61N; A61N7/00; A61B17/32; A61B17/320068; A61B2017/320069
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
93 words
A surgical instrument for ultrasonic welding and deposition of biological tissue, comprising an ultrasonic oscillations source; a concentrator connected to the ultrasonic oscillations source and gradually conjugating with a welding tip spaced from direct contact with both fragments of biological tissue being joined and a binder material preliminarily placed there between; said welding tip being defined as a metal blade having at least one flat face inclined at an angle of 90* + OR - 45* relative to the tip longitudinal axis and extending from the sector of smooth conjugation with the concentrator.
Claim 2
Dependent Claim
93 words
A surgical instrument for ultrasonic welding and deposition of biological tissue, comprising an ultrasonic oscillations source; a concentrator connected to the ultrasonic oscillations source and gradually conjugating with a welding tip spaced from direct contact with both fragments of biological tissue being joined and a binder material preliminarily placed there between; said welding tip being defined as a metal blade having at least one flat face inclined at an angle of 90* + OR - 45* relative to the tip longitudinal axis and extending from the sector of smooth conjugation with the concentrator.
Claim 3
Dependent Claim
31 words
The surgical instrument as claimed in claim 1, wherein the blade of the welding tip has two opposite flat faces made bevel along the sector of smooth conjugation with the concentrator.
Claim 4
Dependent Claim
56 words
The surgical instrument as claimed in claim 1, wherein the welding tip is defined as a blade expanding from the concentrator towards the free end and being symmetrical relative to the longitudinal axis for depositing binder material into the biological cavity, thereby ensuring a required increase in the area of the working edge of the tip.
Claim 5
Dependent Claim
34 words
The surgical instrument as claimed in claim 1, wherein the concentrator with said blade of the welding tip is a titanium alloy, and liquid monomer-cyacrine mixed with homogeneous bone shavings is the binder material.
References Cited (Backward Citations)
US3636943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |