Patent US5895377A successfully refreshed from Google Patents.
US5895377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve system for cannula assembly
Assignee: Covidien LP
•
Filing: 1997-02-18
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Granted: 1999-04-20
•
Expires: 2017-02-18
Abstract
Abstract Valve assembly for sealed reception of an elongated object includes a valve body having at least one opening configured and dimensioned to permit entry of an elongated object and defining a central longitudinal axis, an elongated seal member formed of a resilient material and defining an aperture in general alignment with the opening of the valve body whereby the aperture is configured and dimensioned such that insertion of the object into the aperture causes the resilient material defining the aperture to resiliently engage the outer surface of the object in a substantially fluid flight manner, and at least one elongated guard member disposed within the seal member in supporting contact with the inner surface thereof. The guard member is positioned to engage the elongated object upon at least partial insertion of the elongated object into the valve body. The guard member includes at least a first substantially rigid portion adapted to be displaced relative to the longitudinal axis to facilitate expansion of the aperture of the seal member upon entry of the object therein and a second portion having less rigidity than the first portion of the guard member to enhance passage of the elongated object through the valve body.
Inventors
- 👤 Robert C. Smith
- 👤 Peter W. J. Hinchliffe
- 👤 James Correia
- 👤 Martin J. Nohilly
- 👤 Kurt Azarbarzin
- 👤 Richard D. Gresham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:29
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/06; A61M39/0693; A61B; A61B17/00; A61B17/34; A61B17/3462; A61B2017/3464
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
181 words
Valve assembly for sealed reception of an elongated object, which comprises: a) a valve body having at least one opening configured and dimensioned to permit entry of an elongated object, and defining a central longitudinal axis; b) an elongated seal member formed of a resilient material and defining an aperture in general alignment with the opening of the valve body adapted to resiliently engage the outer surface of the object in a substantially fluid tight manner; and c) at least one elongated guard member disposed within the seal member and positioned to engage the elongated object upon at least partial insertion of the elongated object into the valve body, the guard member including at least a first substantially rigid portion and a second portion having less rigidity than the first portion, the guard member adapted to be displaced relative to the longitudinal axis such that at least the first substantially rigid member engages inner surface portions of the seal member proximal of the aperture to thereby facilitate expansion of the aperture of the seal member upon entry of the object therein.
Claim 2
Dependent Claim
181 words
Valve assembly for sealed reception of an elongated object, which comprises: a) a valve body having at least one opening configured and dimensioned to permit entry of an elongated object, and defining a central longitudinal axis; b) an elongated seal member formed of a resilient material and defining an aperture in general alignment with the opening of the valve body adapted to resiliently engage the outer surface of the object in a substantially fluid tight manner; and c) at least one elongated guard member disposed within the seal member and positioned to engage the elongated object upon at least partial insertion of the elongated object into the valve body, the guard member including at least a first substantially rigid portion and a second portion having less rigidity than the first portion, the guard member adapted to be displaced relative to the longitudinal axis such that at least the first substantially rigid member engages inner surface portions of the seal member proximal of the aperture to thereby facilitate expansion of the aperture of the seal member upon entry of the object therein.
Claim 3
Dependent Claim
27 words
The valve assembly according to claim 1 wherein the at least one guard member includes a plurality of guard members coaxially arranged about the central longitudinal axis.
Claim 4
Dependent Claim
21 words
The valve assembly according to claim 2 wherein the second portion of adjacent guard members are disposed in partial overlapping relation.
Claim 5
Dependent Claim
16 words
The valve assembly according to claim 3 wherein the guard members are mounted for pivotal movement.
Claim 6
Dependent Claim
24 words
The valve assembly according to claim 1 wherein the at least one guard member is mounted for pivotal movement relative to the longitudinal axis.
Claim 7
Dependent Claim
194 words
A valve assembly for sealed reception of an elongated object, which comprises: (a) a valve housing having a longitudinal opening configured and dimensioned to permit entry of an elongate object; (b) an elongated resilient seal member at least partially positionable within the valve housing and defining an aperture to permit entry of the elongated object therein in at substantially fluid tight manner; and (c) a plurality of guard members disposed within the seal member and concentrically arranged about a central longitudinal axis defined by the valve housing and positioned to engage the elongated object upon insertion of the elongated object within the valve housing, the guard members arranged such that at least end portions of adjacent guard members are in overlapping relation, each guard member adapted to be radially displaced during introduction of the elongated object within the valve assembly to contact portions of the valve member adjacent, but proximal to, the aperture to facilitate passage of an elongated object therethrough, the end portions of the guard members being substantially flexible relative to the remaining portions of the guard members to effectively minimize force required to advance the elongated object through the guard members.
Claim 8
Dependent Claim
194 words
A valve assembly for sealed reception of an elongated object, which comprises: (a) a valve housing having a longitudinal opening configured and dimensioned to permit entry of an elongate object; (b) an elongated resilient seal member at least partially positionable within the valve housing and defining an aperture to permit entry of the elongated object therein in at substantially fluid tight manner; and (c) a plurality of guard members disposed within the seal member and concentrically arranged about a central longitudinal axis defined by the valve housing and positioned to engage the elongated object upon insertion of the elongated object within the valve housing, the guard members arranged such that at least end portions of adjacent guard members are in overlapping relation, each guard member adapted to be radially displaced during introduction of the elongated object within the valve assembly to contact portions of the valve member adjacent, but proximal to, the aperture to facilitate passage of an elongated object therethrough, the end portions of the guard members being substantially flexible relative to the remaining portions of the guard members to effectively minimize force required to advance the elongated object through the guard members.
Claim 9
Dependent Claim
23 words
The valve assembly according to claim 6, further including a guard mount, wherein each guard member is movably mounted to the guard mount.
Claim 10
Dependent Claim
155 words
A valve assembly for sealed reception of an elongated object, which comprises: (a) a valve housing having a longitudinal opening configured and dimensioned to permit entry of an elongated object; and (b) an elongated resilient seal member at least partially positionable within the valve housing, the seal member including an inner portion and a peripheral portion, and defining a central longitudinal axis, the inner portion defining a frusto conical configuration and having an aperture in general alignment with the central longitudinal axis to permit entry of the elongated object therein in a substantially fluid tight manner, the peripheral portion including a bellows structure characterized by extending in a longitudinal direction, the bellows structure in coaxial arrangement about at least a portion of the inner portion and being dimensioned to maintain a substantially fluid tight seal with the valve housing notwithstanding manipulation of the elongated object within the aperture in either a longitudinal or radial direction.
Claim 11
Dependent Claim
155 words
A valve assembly for sealed reception of an elongated object, which comprises: (a) a valve housing having a longitudinal opening configured and dimensioned to permit entry of an elongated object; and (b) an elongated resilient seal member at least partially positionable within the valve housing, the seal member including an inner portion and a peripheral portion, and defining a central longitudinal axis, the inner portion defining a frusto conical configuration and having an aperture in general alignment with the central longitudinal axis to permit entry of the elongated object therein in a substantially fluid tight manner, the peripheral portion including a bellows structure characterized by extending in a longitudinal direction, the bellows structure in coaxial arrangement about at least a portion of the inner portion and being dimensioned to maintain a substantially fluid tight seal with the valve housing notwithstanding manipulation of the elongated object within the aperture in either a longitudinal or radial direction.
Claim 12
Dependent Claim
214 words
A valve assembly for sealed reception of an elongated object, which comprises: (a) a valve housing having a longitudinal opening configured and dimensioned to permit entry of an elongated object; (b) an elongated resilient seal member at least partially positionable within the valve housing, the seal member including an inner portion and a peripheral portion, and defining a central longitudinal axis, the inner portion defining a frusto conical configuration and having an aperture in general alignment with the central longitudinal axis to permit entry of the elongated object therein in a substantially fluid tight manner, the peripheral portion including a bellows structure characterized by extending in a general longitudinal direction, the bellows structure in coaxial arrangement about at least a portion of the inner portion and being dimensioned to maintain a substantially fluid tight seal with the valve housing notwithstanding manipulation of the elongated object within the aperture; and (c) at least two guard members disposed within the seal member and positioned to engage the elongated object upon passage through the longitudinal opening of the valve housing, the guard members having rigid portions characterized by having sufficient rigidity to engage an inner surface portion of the seal member proximal of the aperture to facilitate expansion of the aperture upon passage of the elongated object.
Claim 13
Dependent Claim
214 words
A valve assembly for sealed reception of an elongated object, which comprises: (a) a valve housing having a longitudinal opening configured and dimensioned to permit entry of an elongated object; (b) an elongated resilient seal member at least partially positionable within the valve housing, the seal member including an inner portion and a peripheral portion, and defining a central longitudinal axis, the inner portion defining a frusto conical configuration and having an aperture in general alignment with the central longitudinal axis to permit entry of the elongated object therein in a substantially fluid tight manner, the peripheral portion including a bellows structure characterized by extending in a general longitudinal direction, the bellows structure in coaxial arrangement about at least a portion of the inner portion and being dimensioned to maintain a substantially fluid tight seal with the valve housing notwithstanding manipulation of the elongated object within the aperture; and (c) at least two guard members disposed within the seal member and positioned to engage the elongated object upon passage through the longitudinal opening of the valve housing, the guard members having rigid portions characterized by having sufficient rigidity to engage an inner surface portion of the seal member proximal of the aperture to facilitate expansion of the aperture upon passage of the elongated object.
Claim 14
Dependent Claim
23 words
The valve assembly according to claim 9 including a plurality of guard members wherein adjacent guard members are disposed in partial overlapping arrangement.
References Cited (Backward Citations)
US2797837A
Cited
US3197173A
Cited
US3473779A
Cited
GB1199498A
Cited
US3875938A
Cited
US3970089A
Cited
US3977400A
Cited
US4000739A
Cited
US4240411A
Cited
US4379458A
Cited
US4233982A
Cited
US4177814A
Cited
GB2019219A
Cited
US4243034A
Cited
DE2845643A1
Cited
GB2063679A
Cited
EP0029864A1
Cited
US4338934A
Cited
DE3042229A1
Cited
EP0054728A1
Cited
US4430081A
Cited
US4424833A
Cited
DE3242870A1
Cited
US4535773A
Cited
US4512766A
Cited
US4610665A
Cited
US4531937A
Cited
US4609300A
Cited
US4580573A
Cited
US4655752A
Cited
EP0150666A1
Cited
US4629450A
Cited
US4569502A
Cited
US4610674A
Cited
US4611785A
Cited
US4673393A
Cited
US4634432A
Cited
US4929235A
Cited
US4626245A
Cited
US4759751A
Cited
US4654030A
Cited
US4966588A
Cited
US4683916A
Cited
US4935010A
Cited
US4813938A
Cited
US4960259A
Cited
US4798594A
Cited
US4909798A
Cited
EP0323018B1
Cited
US4842591A
Cited
US4857062A
Cited
US4917668A
Cited
US4978341A
Cited
US4960412A
Cited
US4895346A
Cited
US5009391A
Cited
US4874377A
Cited
US5098393A
Cited
EP0344907A2
Cited
EP0350291A2
Cited
US5000745A
Cited
EP0370720A2
Cited
US5127626A
Cited
US5053014A
Cited
US5006114A
Cited
US5161773A
Cited
US5156596A
Cited
US5205831A
Cited
US5092857A
Cited
EP0517248A1
Cited
US5112321A
Cited
US5180373A
Cited
US5385553A
Cited
US5209737A
Cited
US5211634A
Cited
US5350364A
Cited
US5197955A
Cited
US5167636A
Cited
US5256150A
Cited
US5242412A
Cited
US5496280A
Cited
US5300033A
Cited
WO1994007552A1
Cited
US5312362A
Cited
US5342315A
Cited
EP0627233A2
Cited
US5492304A
Cited
US5312363A
Cited
US5460616A
Cited
US5603702A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-04-19 | 2002-10-19 | 2003-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-04-19 | 2006-10-19 | 2007-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-04-19 | 2010-10-19 | 2011-04-20 | $7700.00 | Window Closed / Lapsed |