Patent US4372743A successfully refreshed from Google Patents.
US3817251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laparoscope cannula
Assignee: Individual
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Filing: 1972-10-04
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Granted: 1974-06-18
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Expires: 1992-10-04
Abstract
Abstract A cannula is provided for laparoscopy, which cannula includes an adjustable cone-shaped sleeve for blocking the incisional gap and maintaining the pneumoperitoneum. The cannula also includes a pair of hooks for receiving a suture to maintain the cannula in place with respect to the patient''s abdomen.
Inventors
- 👤 H Hasson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:23
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/34; A61B17/3417; A61B17/3421; A61B1/00; A61B1/12; A61B17/32; A61B2017/320044; A61B2017/348; A61B2017/3492
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
123 words
A laparoscope cannula for use with a peritoneal cavity which comprises: a proximal shaft portion forming the inlet to receive a blunt obturator and a laparoscope; a distal shaft portion for insertion into the abdominal cavity of a patient; gas valve means coupling said proximal shaft portion and said distal shaft portion; a generally truncated cone-shaped sleeve positioned on said distal shaft portion, with the base of the cone facing toward said proximal shaft portion; and means for providing adjustable positioning of said sleeve along said distal shaft portion whereby selectively variable length protrusion segments may be provided, and further including rigid means carried by said cannula for receiving a suture, to maintain the cannula in place with respect to the patient''s abdomen.
Claim 2
Dependent Claim
123 words
A laparoscope cannula for use with a peritoneal cavity which comprises: a proximal shaft portion forming the inlet to receive a blunt obturator and a laparoscope; a distal shaft portion for insertion into the abdominal cavity of a patient; gas valve means coupling said proximal shaft portion and said distal shaft portion; a generally truncated cone-shaped sleeve positioned on said distal shaft portion, with the base of the cone facing toward said proximal shaft portion; and means for providing adjustable positioning of said sleeve along said distal shaft portion whereby selectively variable length protrusion segments may be provided, and further including rigid means carried by said cannula for receiving a suture, to maintain the cannula in place with respect to the patient''s abdomen.
Claim 3
Dependent Claim
31 words
A laparoscope cannula as described in claim 7, wherein said adjustable positioning means comprises means for enabling a snug, manually adjustable frictional fit between said sleeve and said distal shaft portion.
Claim 4
Dependent Claim
45 words
A laparoscope cannula as described in claim 2, wherein said distal shaft portion defines a plurality of grooves about its circumference and said sleeve carries means which hug the surface of said distal shaft portion and which enter each of said grooves when aligned therewith.
Claim 5
Dependent Claim
23 words
A laparoscope cannula as described in claim 1, wherein said suture-receiving means comprises a pair of hooks located adjacent said gas valve means.
Claim 6
Dependent Claim
130 words
A laparoscope cannula for use with a peritoneal cavity which comprises: a proximal shaft portion forming the inlet to receive a blunt obturator and a laparoscope; a distal shaft portion for insertion into the abdominal cavity of a patient; gas valve means coupling said proximal shaft portion and said distal shaft portion; rigid suture-receiving means carried by said cannula to maintain the cannula in place with respect to the patient''s abdomen; a generally truncated cone-shaped sleeve positioned on said distal shaft portion, with the base of the cone facing toward said proximal shaft portion, said distal shaft portion defining a plurality of grooves about its circumference and said sleeve carrying means which hug the surface of said distal shaft portion and which enter each of said grooves when aligned therewith.
Claim 7
Dependent Claim
130 words
A laparoscope cannula for use with a peritoneal cavity which comprises: a proximal shaft portion forming the inlet to receive a blunt obturator and a laparoscope; a distal shaft portion for insertion into the abdominal cavity of a patient; gas valve means coupling said proximal shaft portion and said distal shaft portion; rigid suture-receiving means carried by said cannula to maintain the cannula in place with respect to the patient''s abdomen; a generally truncated cone-shaped sleeve positioned on said distal shaft portion, with the base of the cone facing toward said proximal shaft portion, said distal shaft portion defining a plurality of grooves about its circumference and said sleeve carrying means which hug the surface of said distal shaft portion and which enter each of said grooves when aligned therewith.
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) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |