Patent US4043328A successfully refreshed from Google Patents.
US4043328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Urological drape
Assignee: Baxter International Inc
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Filing: 1976-06-01
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Granted: 1977-08-23
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Expires: 1996-06-01
Abstract
Abstract A disposable unitary drape particularly suited for use in performing transurethral surgery of the bladder and prostate, and similar operations. A thin flexible finger cot projects from the body of the drape, the cot having a bulbous distal end portion and an elongated neck portion of reversed taper and reduced wall thickness. An annular retention rib projects outwardly from the cot at the juncture of the neck and end portions and, in one embodiment, the wall thickness of the neck portion is even further reduced in an arcuate intermediate section to increase tactile sensitivity in that zone for the surgeon. The cot may be supplied in longitudinally collapsed form. Because of its configuration and construction, the cot tends to be self-retaining in use.
Inventors
- 👤 Charles D. Cawood, Jr.
- 👤 John S. Ziegler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:19
CPC Classifications
A; A61; A61B; A61B46/00; A61B46/30; A61B42/00
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
66 words
A urological drape for use in transurethral resections and similar operations, comprising a sheet of flexible material having a generally centrally-disposed opening therethrough, and a finger cot of flexible stretchable material extending from said sheet about said opening, said cot having an elongated neck portion and terminating in an enlarged closed free end portion, said neck portion gradually increasing in diameter towards said enlarged end portion.
Claim 2
Dependent Claim
66 words
A urological drape for use in transurethral resections and similar operations, comprising a sheet of flexible material having a generally centrally-disposed opening therethrough, and a finger cot of flexible stretchable material extending from said sheet about said opening, said cot having an elongated neck portion and terminating in an enlarged closed free end portion, said neck portion gradually increasing in diameter towards said enlarged end portion.
Claim 3
Dependent Claim
23 words
The drape of claim 1 in which said enlarged end portion has a wall thickness substantially greater than that of said neck portion.
Claim 4
Dependent Claim
44 words
The drape of claim 2 in which said end portion has a wall thickness within the range of about 0.030 to 0.080 of an inch, and said neck portion has a wall thickness within the range of about 0.010 to 0.050 of an inch.
Claim 5
Dependent Claim
43 words
The drape of claim 3 in which said neck portion includes an arcuate section having a wall thickness substantially less than the remainder of said neck portion, said arcuate section providing a readily deformable zone for palpation of the prostate during transurethral resection.
Claim 6
Dependent Claim
21 words
The drape of claim 4 in which said arcuate section has a wall thickness no greater than 0.02 of an inch.
Claim 7
Dependent Claim
36 words
The drape of claim 5 in which said arcuate section extends longitudinally along a major portion of the length of said neck portion and has an angular dimension within the range of 90° to 180° .
Claim 8
Dependent Claim
38 words
The drape of claim 1 in which said neck portion is foldable upon itself into a collapsed condition wherein said enlarged head portion is retracted to a position adjacent said sheet and extends about said folded neck portion.
Claim 9
Dependent Claim
81 words
A urological drape for use in transurethral resections and similar operations, comprising a sheet of flexible material having a generally centrally-disposed opening therethrough, and a finger cot of flexible stretchable material extending from said sheet about said opening, said cot having an elongated neck portion and terminating in an enlarged closed free end portion, said neck portion gradually increasing in diameter towards said enlarged end portion, and an outwardly-projecting annular rib disposed at the boundary of said neck and head portions.
Claim 10
Dependent Claim
81 words
A urological drape for use in transurethral resections and similar operations, comprising a sheet of flexible material having a generally centrally-disposed opening therethrough, and a finger cot of flexible stretchable material extending from said sheet about said opening, said cot having an elongated neck portion and terminating in an enlarged closed free end portion, said neck portion gradually increasing in diameter towards said enlarged end portion, and an outwardly-projecting annular rib disposed at the boundary of said neck and head portions.
Claim 11
Dependent Claim
23 words
The drape of claim 8 in which said enlarged end portion has a wall thickness substantially greater than that of said neck portion.
Claim 12
Dependent Claim
44 words
The drape of claim 9 in which said end portion has a wall thickness within the range of about 0.030 to 0.080 of an inch, and said neck portion has a wall thickness within the range of about 0.010 to 0.050 of an inch.
Claim 13
Dependent Claim
43 words
The drape of claim 10 in which said neck portion includes an arcuate section having a wall thickness substantially less than the remainder of said neck portion, said arcuate section providing a readily deformable zone for palpation of the prostate during transurethral resection.
Claim 14
Dependent Claim
21 words
The drape of claim 11 in which said arcuate section has a wall thickness no greater than 0.02 of an inch.
Claim 15
Dependent Claim
36 words
The drape of claim 12 in which said arcuate section extends longitudinally along a major portion of the length of said neck portion and has an angular dimension within the range of 90° to 180° .
Claim 16
Dependent Claim
38 words
The drape of claim 8 in which said neck portion is foldable upon itself into a collapsed condition wherein said enlarged head portion is retracted to a position adjacent said sheet and extends about said folded neck portion.
Claim 17
Dependent Claim
96 words
A urological drape for use in transurethral resections and similar operations, comprising a sheet of flexible material having a generally centrally-disposed opening therethrough, and a finger cot of flexible stretchable material extending from said sheet about said opening, said cot having an elongated neck portion and terminating in an enlarged free end portion, said neck portion gradually increasing in diameter towards said enlarged end portion, said enlarged end portion having a wall thickness substantially greater than that of said neck portion, said cot having a total length within the range of about 3 to 5 inches.
Claim 18
Dependent Claim
96 words
A urological drape for use in transurethral resections and similar operations, comprising a sheet of flexible material having a generally centrally-disposed opening therethrough, and a finger cot of flexible stretchable material extending from said sheet about said opening, said cot having an elongated neck portion and terminating in an enlarged free end portion, said neck portion gradually increasing in diameter towards said enlarged end portion, said enlarged end portion having a wall thickness substantially greater than that of said neck portion, said cot having a total length within the range of about 3 to 5 inches.
Claim 19
Dependent Claim
26 words
The drape of claim 15 in which the neck portion of said cot has a minimum inside diameter adjacent said sheet of 0.80 of an inch.
Claim 20
Dependent Claim
22 words
The drape of claim 15 in which said neck portion has a minimum inside diameter adjacent said end portion of 1.10 inches.
Claim 21
Dependent Claim
44 words
The drape of claim 15 in which said end portion has a wall thickness within the range of about 0.030 to 0.080 of an inch, and said neck portion has a wall thickness within the range of about 0.010 to 0.050 of an inch.
Claim 22
Dependent Claim
43 words
The drape of claim 15 in which said neck portion includes an arcuate section having a wall thickness substantially less than the remainder of said neck portion, said arcuate section providing a readily deformable zone for palpation of the prostate during transurethral resection.
Claim 23
Dependent Claim
21 words
The drape of claim 19 in which said arcuate section has a wall thickness no greater than 0.02 of an inch.
Claim 24
Dependent Claim
36 words
The drape of claim 20 in which said arcuate section extends longitudinally along a major portion of the length of said neck portion and has an angular dimension within the range of 90° to 180° .
Claim 25
Dependent Claim
38 words
The drape of claim 15 in which said neck portion is foldable upon itself into a collapsed condition wherein said enlarged head portion is retracted to a position adjacent said sheet and extends about said folded neck portion.
Claim 26
Dependent Claim
22 words
The drape of claim 15 in which said cot has a total length within the range of about 4 to 5 inches.
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) | 1980-08-22 | 1981-02-21 | 1981-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-22 | 1985-02-21 | 1985-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-22 | 1989-02-21 | 1989-08-23 | $7700.00 | Window Closed / Lapsed |