Patent US3688773A successfully refreshed from Google Patents.
US3688773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for performing a tracheostomy and other surgical procedures
Assignee: Individual
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Filing: 1970-04-16
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Granted: 1972-09-05
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Expires: 1990-04-16
Abstract
Abstract A device for aspiration, ventilation or visualization comprising: A. AN EXPANDABLE HOUSING HAVING AN END PORTION TAPERED SO AS TO FORM A MEANS FOR PUNCTURING, B. A PLUNGER CARRYING A HOLLOW TUBE, C. SAID TUBE AND SAID PLUNGER ADAPTED TO BE INSERTED IN SAID HOUSING AND MOVABLE WITH RESPECT TO SAID HOUSING SUCH THAT THE DEPRESSION OF THE PLUNGER CAUSES SAID TUBE TO PASS THROUGH AND EXPAND SAID TAPERED END PORTION OF SAID HOUSING.
Inventors
- 👤 Sol Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:51
CPC Classifications
A; A61; A61M; A61M16/00; A61M16/04; A61M16/0465; A61M16/0472
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
164 words
A device for a surgical procedure comprising, in combination: a. a housing having an enlarged main portion and an end portion of a substantially smaller normal diameter than the average diameter of said enlarged main portion, said end portion comprising at least two sections which, taken together, taper to a cutting edge so as to form a means for puncturing human skin, means for holding said sections of said end portion together to form said cutting edge and to enable said sections of said end portion to be separable from each other and expand from said smaller normal diameter; and b. a hollow tube of smaller diameter than said enlarged main portion of said housing, said hollow tube being movable through said enlarged main portion of said housing, said hollow tube being of larger diameter than said normal diameter of said end portion whereby to expand said end portion outwardly from its normal diameter as said hollow tube is moved through said end portion.
Claim 2
Independent Claim
164 words
A device for a surgical procedure comprising, in combination: a. a housing having an enlarged main portion and an end portion of a substantially smaller normal diameter than the average diameter of said enlarged main portion, said end portion comprising at least two sections which, taken together, taper to a cutting edge so as to form a means for puncturing human skin, means for holding said sections of said end portion together to form said cutting edge and to enable said sections of said end portion to be separable from each other and expand from said smaller normal diameter; and b. a hollow tube of smaller diameter than said enlarged main portion of said housing, said hollow tube being movable through said enlarged main portion of said housing, said hollow tube being of larger diameter than said normal diameter of said end portion whereby to expand said end portion outwardly from its normal diameter as said hollow tube is moved through said end portion.
Claim 3
Dependent Claim
42 words
A device as in claim 1 wherein the hollow tube is of a length such that when the plunger is in its full depressed position the lower end of said tube does not extend substantially below said end portion of said housing.
Claim 4
Dependent Claim
35 words
A device as in claim 1 wherein said hollow tube is carried on a plunger and said plunger has an air passage passing longitudinally through its center, and in air communication with said hollow tube.
Claim 5
Dependent Claim
15 words
A device as in claim 1 having means for introducing air into said air tube.
Claim 6
Dependent Claim
15 words
A device as in claim 1 wherein said end portion is an arcuate cutting edge.
Claim 7
Independent Claim
179 words
A device for performing a tracheostomy comprising: a. a two piece, generally conical, expandable housing having an arcuate cutting end portion suitable for puncturing, said cutting end portion being held in position by a circumferentially displaced expandable ring; b. a plunger carrying a hollow air tube, said plunger and said air tube positioned in said housing by guiding means and movable with respect to said housing such that, following the puncturing of the anterior wall of the trachea with said cutting end portion, the depression of said plunger will cause the lower terminal end portion of said air tube to move from a first position wherein the diameter of said housing is larger than the outside diameter of said terminal end portion of said air tube to a second position wherein the diameter of the housing is smaller than the outside diameter of said terminal end portion of said air tube to thereby cause said housing, at said second position, to expand by an amount equal to the outside diameter of said terminal end portion of said air tube.
Claim 8
Independent Claim
179 words
A device for performing a tracheostomy comprising: a. a two piece, generally conical, expandable housing having an arcuate cutting end portion suitable for puncturing, said cutting end portion being held in position by a circumferentially displaced expandable ring; b. a plunger carrying a hollow air tube, said plunger and said air tube positioned in said housing by guiding means and movable with respect to said housing such that, following the puncturing of the anterior wall of the trachea with said cutting end portion, the depression of said plunger will cause the lower terminal end portion of said air tube to move from a first position wherein the diameter of said housing is larger than the outside diameter of said terminal end portion of said air tube to a second position wherein the diameter of the housing is smaller than the outside diameter of said terminal end portion of said air tube to thereby cause said housing, at said second position, to expand by an amount equal to the outside diameter of said terminal end portion of said air tube.
Claim 9
Dependent Claim
19 words
A device as in claim 6 wherein said second position is at the terminal end portion of said housing.
Claim 10
Dependent Claim
16 words
The device of claim 1 wherein said enlarged main portion of said housing is generally conical.
Claim 11
Dependent Claim
19 words
The device of claim 1 wherein said end portion of said housing is split so as to be expandable.
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) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |