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US5807338A
Expired / Lapsed
US
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Modular trocar system and methods of assembly
Assignee: United States Surgical Corp
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Filing: 1995-10-20
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Granted: 1998-09-15
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Expires: 2015-10-20
Abstract
Abstract A modular trocar system is provided which includes an obturator assembly, and a cannula assembly defining a longitudinal passageway therethrough configured and dimensioned to slidably receive the obturator assembly, the cannula assembly including a housing which includes a valve assembly and a first mating portion, and a cannula defining a passageway of a predetermined dimension therethrough, the cannula including a second mating portion disposed thereon, the cannula and housing movable alternately between a spaced apart relative orientation and an attached orientation wherein the first and second mating portions are engaged. A method of assembly is also provided and includes the steps of connecting a shield member of a first predetermined configuration and dimension to a first housing section, attaching a knife blade assembly of a second predetermined configuration and dimension to the first housing section with a single motion wherein the attachment permits rotation of the knife blade relative to the first housing section, and attaching the first housing section to a second housing section with a quick connect mechanism which includes first and second mating portions such that the first and second housing sections are movable from a spaced apart position to a connected position in a single motion.
Inventors
- 👤 Robert C. Smith
- 👤 Martin J. Nohilly
- 👤 Marc J. Theroux
- 👤 Richard D. Gresham
- 👤 Timothy O. VanLeeuwen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:19
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/34; A61B17/3494; A61B17/3496; A61B17/3417; A61B17/3498; A61B2017/0042; A61B2017/0046; A61B90/00; A61B90/06; A61B2090/062
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
115 words
A method of assembling an obturator assembly for use in a trocar system comprising the steps of: connecting a shield member of a first predetermined configuration and dimension to a first housing section; attaching a knife blade assembly of a second predetermined configuration and dimension to the first housing section with a single motion wherein the attachment permits rotation of the knife blade relative to the first housing section; and attaching the first housing section to a second housing section with a quick connect mechanism which includes first and second mating portions such that the first and second housing sections are movable from a spaced apart position to a connected position in a single motion.
Claim 2
Independent Claim
115 words
A method of assembling an obturator assembly for use in a trocar system comprising the steps of: connecting a shield member of a first predetermined configuration and dimension to a first housing section; attaching a knife blade assembly of a second predetermined configuration and dimension to the first housing section with a single motion wherein the attachment permits rotation of the knife blade relative to the first housing section; and attaching the first housing section to a second housing section with a quick connect mechanism which includes first and second mating portions such that the first and second housing sections are movable from a spaced apart position to a connected position in a single motion.
Claim 3
Independent Claim
176 words
A method of assembling a trocar system, comprising the steps of: connecting a first housing which includes a valve assembly disposed in a passageway formed between an open proximal end and an open distal end, with a cannula which defines a passageway of a predetermined size therethrough; connecting a shield member of a first predetermined configuration and dimension to a second housing section; attaching a knife blade assembly of a second predetermined configuration and dimension to the second housing section with a single motion wherein the attachment permits rotation of the knife blade relative to the second housing section; attaching the second housing section to a third housing section with a quick connect mechanism which includes first and second mating portions such that the second and third housing sections are movable from a spaced apart position to a connected position in a single motion; and inserting the shield member and knife blade assembly into the open proximal end of the first housing such that at least a portion of the shield member extends through the cannula.
Claim 4
Independent Claim
176 words
A method of assembling a trocar system, comprising the steps of: connecting a first housing which includes a valve assembly disposed in a passageway formed between an open proximal end and an open distal end, with a cannula which defines a passageway of a predetermined size therethrough; connecting a shield member of a first predetermined configuration and dimension to a second housing section; attaching a knife blade assembly of a second predetermined configuration and dimension to the second housing section with a single motion wherein the attachment permits rotation of the knife blade relative to the second housing section; attaching the second housing section to a third housing section with a quick connect mechanism which includes first and second mating portions such that the second and third housing sections are movable from a spaced apart position to a connected position in a single motion; and inserting the shield member and knife blade assembly into the open proximal end of the first housing such that at least a portion of the shield member extends through the cannula.
Claim 5
Dependent Claim
64 words
The method according to claim 2, wherein the step of connecting the first housing to the cannula includes aligning a third mating portion, formed on the first housing, with a fourth mating portion, formed on the cannula, and moving the first housing and the cannula from a spaced apart relative orientation to an attached orientation, wherein the third and fourth mating portions are engaged.
Claim 6
Dependent Claim
23 words
The method according to claim 3, which further comprises the step of forming a fluid-tight seal between the first housing and the cannula.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-09-14 | 2002-03-16 | 2002-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-09-14 | 2006-03-16 | 2006-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-09-14 | 2010-03-16 | 2010-09-15 | $7700.00 | Window Closed / Lapsed |