US5360427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable electro-suction device
Assignee: Arthur D Little Enterprises Inc
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Filing: 1992-12-18
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Granted: 1994-11-01
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Expires: 2012-12-18
Abstract
Abstract An electro cautery device for attachment to a suction pump and to a source of electric current includes a tubular member one end of which is connectable to the suction pump and the other end is insertable into the cavity of a human torso. A retractable cautery element is mounted on the end insertable into the torso and connectable to a source of electric current. The cautery element is movable between a retracted position which prevents it from being exposed to tissue and an extended position used during cauterization. A button on the tubular member moves the cautery element from the retracted to the extended positions when depressed, simultaneously connecting the cautery element to the source of the electric current.
Inventors
- 👤 Heshmat Majlessi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:38
CPC Classifications
A; A61; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1482; A61B2018/0091; A61B2018/00916; A61B2018/00922
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
242 words
An electrocautery device for attachment to a suction pump and to a source of electric current, comprising an elongate tubular member having first and second free ends and being connectable to the suction pump at said first free end and having said second free end dimensioned and configured to be insertable into a cavity of a human torso into proximity with bleeding vessels or tissue to suction blood in a region of the bleeding vessels or tissue thereby improving visibility of the bleeding vessels or tissue requiring cauterization; a cautery element at said second free end and connectable to the source of electric current for cauterizing the bleeding vessels or tissue, said cautery element being movable between a retracted position within said tubular member, wherein the bleeding vessels or tissue are not exposed to said cautery element, and an extended position used during cauterization; actuatable means on said elongate tubular member for selectively moving said cautery element from said retracted to said extended positions; and biassing means on said elongate tubular member and coupled to said cautery element for automatically biassing said actuatable means to normally move said cautery element to said retracted position whereby cauterization can be selectively performed when said cautery element is connected to the source of electric current upon actuation of said actuatable means to move said cautery element to said extended position while said cautery element is normally and automatically retracted when said actuatable means is released.
Claim 2
Dependent Claim
242 words
An electrocautery device for attachment to a suction pump and to a source of electric current, comprising an elongate tubular member having first and second free ends and being connectable to the suction pump at said first free end and having said second free end dimensioned and configured to be insertable into a cavity of a human torso into proximity with bleeding vessels or tissue to suction blood in a region of the bleeding vessels or tissue thereby improving visibility of the bleeding vessels or tissue requiring cauterization; a cautery element at said second free end and connectable to the source of electric current for cauterizing the bleeding vessels or tissue, said cautery element being movable between a retracted position within said tubular member, wherein the bleeding vessels or tissue are not exposed to said cautery element, and an extended position used during cauterization; actuatable means on said elongate tubular member for selectively moving said cautery element from said retracted to said extended positions; and biassing means on said elongate tubular member and coupled to said cautery element for automatically biassing said actuatable means to normally move said cautery element to said retracted position whereby cauterization can be selectively performed when said cautery element is connected to the source of electric current upon actuation of said actuatable means to move said cautery element to said extended position while said cautery element is normally and automatically retracted when said actuatable means is released.
Claim 3
Dependent Claim
26 words
An electrocautery device as defined in claim 1, wherein an elongate channel extends along said tubular member and is dimensioned to slidably receive said cautery element.
Claim 4
Dependent Claim
41 words
An electrocautery device as defined in claim 2, wherein said tubular member has a predetermined length between said first and second free ends and said elongate channel extends substantially said entire predetermined length of said tubular member between said free ends.
Claim 5
Dependent Claim
61 words
An electrocautery device as defined in claim 2, wherein said tubular member has an interior space and said elongate channel is formed by a partition wall extending longitudinally within said tubular member to partition said interior space of said tubular member into said elongate channel and a suction channel that can be placed in fluid flow communication with the suction pump.
Claim 6
Dependent Claim
30 words
An electrocautery device as defined in claim 1, wherein said tubular member has a longitudinal axis and said cautery element has a dimension along said axis of approximately 5-6 mm.
Claim 7
Dependent Claim
50 words
An electrocautery device as defined in claim 1, wherein said actuatable means comprises an actuator at said one of said free ends, and linking means for linking said actuator with said cautery element, manual actuation of said actuator causing said cautery element to move between said retracted and extended positions.
Claim 8
Dependent Claim
16 words
An electrocautery device as defined in claim 1, wherein said biassing means comprises a leaf spring.
Claim 9
Dependent Claim
23 words
An electrocautery device as defined in claim 1, further comprising switch means for selectively connecting said cautery element to the source of current.
Claim 10
Dependent Claim
15 words
An electrocautery device as defined in claim 8, wherein said switch means is normally open.
Claim 11
Dependent Claim
35 words
An electrocautery device as defined in claim 9, wherein said switch means includes a movable contact that is mechanically coupled to said actuatable means to cause said cautery element to move to the extended position.
Claim 12
Dependent Claim
30 words
An electrocautery device as defined in claim 1, wherein said tubular member has an axis and said cautery element has a dimension transverse to said axis of approximately 3 mm.
Claim 13
Dependent Claim
16 words
An electrocautery device as defined in claim 1, wherein said tubular member is circular in cross-section.
Claim 14
Dependent Claim
21 words
An electrocautery device as defined in claim 1, wherein said tubular member has a diameter which does not exceed 5 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) | 1997-10-31 | 1998-05-02 | 1998-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-31 | 2002-05-02 | 2002-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-31 | 2006-05-02 | 2006-11-01 | $7700.00 | Window Closed / Lapsed |