US3597582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode retaining chuck handle assembly with adapter unit
Assignee: MDT Corp
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Filing: 1969-01-08
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Granted: 1971-08-03
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Expires: 1989-01-08
Abstract
Abstract An electrosurgical chuck handle assembly with an adapter unit is disclosed. The chuck handle assembly is designed to provide a means for retaining the electrode used for cutting or coagulating and is held firmly with provisions for changing the electrode. The chuck handle assembly is constructed of materials having sufficient heat distorting properties to allow the handle to distort whenever the assembly is sterilized by heating, thereby rendering the handle ineffective for further reuse. The distortion feature helps eliminate open circuits in the assembly which occur from repeated heat sterilizing. Also disclosed is an adapter unit for receiving the terminal plug of the chuck handle assembly and electrically connecting the terminal plug to an existing electrosurgical unit. The adapter unit contains novel locking means whereby the terminal plug is retained within the adapter unit in an electrical contact position thereby preventing inadvertent disconnection from the electrosurgical unit.
Inventors
- 👤 John P Goode
- 👤 John J Saeli
- 👤 James P Sformo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:20
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1402; A61B90/00; A61B90/08; A61B2090/0814
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
224 words
An electrode retaining chuck handle assembly comprising: a. a first terminal plug; b. a flexible electrical conductor having one end electrically connected to said first terminal plug and a second end; c. an electrically insulating chuck handle having an axial bore therethrough and a ridge formed integral said bore adjacent one end thereof; d. an electrically insulating sleeve portion positioned within said chuck handle bore with one end of said sleeve engaging said ridge for retaining said sleeve within said chuck handle bore, said sleeve portion having an axial bore therethrough and a second ridge formed integral said sleeve portion bore adjacent one end thereof; e. a second terminal plug positioned within said sleeve portion bore with one end of said second terminal plug engaging said second ridge for retaining said plug within said sleeve bore, said plug being adapted to receive and retain therein one end of an electrode inserted into said chuck handle bore; f. said flexible electrical conductor having its second end passing into said chuck handle bore and sleeve portion bore and electrically connected to said second terminal plug; and g. said chuck handle and said sleeve portion constructed of a material having a heat distorting property sufficient to allow distortion of said handle whenever said handle is sterilized by heating thereby rendering said handle ineffective for retaining the electrode.
Claim 2
Dependent Claim
224 words
An electrode retaining chuck handle assembly comprising: a. a first terminal plug; b. a flexible electrical conductor having one end electrically connected to said first terminal plug and a second end; c. an electrically insulating chuck handle having an axial bore therethrough and a ridge formed integral said bore adjacent one end thereof; d. an electrically insulating sleeve portion positioned within said chuck handle bore with one end of said sleeve engaging said ridge for retaining said sleeve within said chuck handle bore, said sleeve portion having an axial bore therethrough and a second ridge formed integral said sleeve portion bore adjacent one end thereof; e. a second terminal plug positioned within said sleeve portion bore with one end of said second terminal plug engaging said second ridge for retaining said plug within said sleeve bore, said plug being adapted to receive and retain therein one end of an electrode inserted into said chuck handle bore; f. said flexible electrical conductor having its second end passing into said chuck handle bore and sleeve portion bore and electrically connected to said second terminal plug; and g. said chuck handle and said sleeve portion constructed of a material having a heat distorting property sufficient to allow distortion of said handle whenever said handle is sterilized by heating thereby rendering said handle ineffective for retaining the electrode.
Claim 3
Dependent Claim
19 words
The assembly as defined in claim 1 wherein said chuck handle and said elongated sleeve are constructed of polystyrene.
Claim 4
Dependent Claim
48 words
An electrode retaining chuck handle assembly as set forth in claim 1 wherein said sleeve portion includes a third ridge formed integral said sleeve portion bore adjacent another end thereof said third ridge engaging the second end of said electrical conductor for retaining said conductor within said bore.
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |