US3100489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cautery device
Assignee: Medtronic Inc
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Filing: 1957-09-30
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Granted: 1963-08-13
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Expires: 1977-09-30
Abstract
No abstract record available.
Inventors
- 👤 Russell W Bagley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:22
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1442; A61B2018/0091; A61B2018/00916; A61B2018/00928
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
A CONTROL UNIT FOR A RADIO FREQUENCY CAUTERY INSTRUMENT, SAID CONTROL UNIT COMPRISING A FORCEPS COMPRISING A PAIR OF OPPOSED ELONGATED FORCEPS ARMS SECURED TOGETHER AT ONE END AND ADAPTED TO BE BROUGHT TOGETHER AT THEIR FREE ENDS BY SLIGHT PRESSURE ON THE OPPOSITE ARMS, A PAIR OF ELECTRICAL SWITCH CONTACT ELEMENTS POSITIONED ON THE RESPECTIVE INSIDE SURFACES OF SAID FORCEPS ARMS INTERMEDIATE OF THEIR FREE AND SECURED ENDS, SAID SWITCH ELEMENTS BEING POSITIONED TO COME INTO CONTACT WITH EACH OTHER UPON APPLICATION OF PRESSURE TO THE OUTSIDE SURFACES OF SAID FORCEPS ARMS, ONE OF SAID SWITCH CONTACT ELEMENTS BEING IN DIRECT ELECTRICAL CONTACT WITH THE BODY OF SAID FORCEPS, THE SECOND OF SAID SWITCH CONTACTS BEING ELECTRICALLY INSULATED FROM SAID FORCEPS BODY, A FIRST ELECTRICAL CONDUCTOR SECURED IN ELECTRICAL CONTACT WITH SAID FORCEPS BODY AND FIRST SWITCH CONTACT ELEMENT, A SECOND ELECTRICAL CONDUCTOR SECURED IN ELECTRICAL CONTACT WITH SAID SECOND SWITCH CONTACT ELEMENT BUT ELECTRICALLY INSULATED FROM SAID FORCEPS BODY AND AN INSULATING COATING COVERING ALL OF SAID FORCEPS EXCEPT THE FREE END TIPS AND SAID SWITCH CONTACT ELEMENTS, MEANS FOR CONNECTING THE FIRST CONDUCTOR SECURED IN ELECTRICAL CONTACT WITH SAID FORCEPS
Claim 2
Dependent Claim
193 words
A CONTROL UNIT FOR A RADIO FREQUENCY CAUTERY INSTRUMENT, SAID CONTROL UNIT COMPRISING A FORCEPS COMPRISING A PAIR OF OPPOSED ELONGATED FORCEPS ARMS SECURED TOGETHER AT ONE END AND ADAPTED TO BE BROUGHT TOGETHER AT THEIR FREE ENDS BY SLIGHT PRESSURE ON THE OPPOSITE ARMS, A PAIR OF ELECTRICAL SWITCH CONTACT ELEMENTS POSITIONED ON THE RESPECTIVE INSIDE SURFACES OF SAID FORCEPS ARMS INTERMEDIATE OF THEIR FREE AND SECURED ENDS, SAID SWITCH ELEMENTS BEING POSITIONED TO COME INTO CONTACT WITH EACH OTHER UPON APPLICATION OF PRESSURE TO THE OUTSIDE SURFACES OF SAID FORCEPS ARMS, ONE OF SAID SWITCH CONTACT ELEMENTS BEING IN DIRECT ELECTRICAL CONTACT WITH THE BODY OF SAID FORCEPS, THE SECOND OF SAID SWITCH CONTACTS BEING ELECTRICALLY INSULATED FROM SAID FORCEPS BODY, A FIRST ELECTRICAL CONDUCTOR SECURED IN ELECTRICAL CONTACT WITH SAID FORCEPS BODY AND FIRST SWITCH CONTACT ELEMENT, A SECOND ELECTRICAL CONDUCTOR SECURED IN ELECTRICAL CONTACT WITH SAID SECOND SWITCH CONTACT ELEMENT BUT ELECTRICALLY INSULATED FROM SAID FORCEPS BODY AND AN INSULATING COATING COVERING ALL OF SAID FORCEPS EXCEPT THE FREE END TIPS AND SAID SWITCH CONTACT ELEMENTS, MEANS FOR CONNECTING THE FIRST CONDUCTOR SECURED IN ELECTRICAL CONTACT WITH SAID FORCEPS
References Cited (Backward Citations)
US1071978A
Cited
US2012937A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |