Patent US3721243A successfully refreshed from Google Patents.
Patent US5827228A successfully refreshed from Google Patents.
US5827228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal members for surgical trocars
Assignee: Ethicon Inc
•
Filing: 1996-02-16
•
Granted: 1998-10-27
•
Expires: 2016-02-16
Abstract
Abstract Trocar assembly devices are disclosed that include an improved elastomeric seal member to maintain sealing engagement during off-centering or radial motion of instruments extending therethrough. The seal members include an inner section and an outer section. The inner section has an opening formed therein to permit an elongate instrument to pass therethrough in sealing engagement therewith. In accordance with certain embodiments, a corrugated portion is formed in the outer section. In accordance with certain embodiments an annular floating ring separates the inner section from the outer section.
Inventors
- 👤 C. Daniel Rowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:59
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/34; A61B17/3417; A61B17/3462; A61M; A61M39/00; A61M39/02; A61M39/06; A61B2017/3464; A61M2039/0626; A61M2039/0633; A61M2039/0653; A61M2039/0666; A61M2039/0686
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
244 words
A trocar assembly for providing communication into an anatomical cavity, comprising: (a) a trocar tube defining an interior lumen having an open distal end portion and an open proximal end portion for accommodating axial movement of an elongate instrument of lesser cross-sectional dimension therethrough; (b) a housing adjoining said proximal end portion of said trocar tube defining a chamber having open distal and proximal end portions that communicate with said lumen and permit axial movement of an elongate instrument therethrough; (c) an elastomeric seal member positioned in said chamber for sealing said proximal end portion of said chamber, said seal member having a distal surface and a proximal surface, said seal member having an inner section and an outer section, said inner section having an opening formed therein for permitting an elongate instrument to pass therethrough in sealing engagement therewith, said seal member having a corrugated portion formed in said outer section in surrounding relationship with said opening so as to maintain the sealing engagement with an elongate instrument during off-centering of an instrument with respect to said seal member; and (d) an annular floating ring located immediately adjacent and extending from at least one of said distal and proximal surfaces of said seal member to separate said inner section from said outer section so that off-center movement of an elongate instrument extending through said opening causes lateral movement of said outer section while maintaining said inner section in sealing engagement with the instrument.
Claim 2
Dependent Claim
244 words
A trocar assembly for providing communication into an anatomical cavity, comprising: (a) a trocar tube defining an interior lumen having an open distal end portion and an open proximal end portion for accommodating axial movement of an elongate instrument of lesser cross-sectional dimension therethrough; (b) a housing adjoining said proximal end portion of said trocar tube defining a chamber having open distal and proximal end portions that communicate with said lumen and permit axial movement of an elongate instrument therethrough; (c) an elastomeric seal member positioned in said chamber for sealing said proximal end portion of said chamber, said seal member having a distal surface and a proximal surface, said seal member having an inner section and an outer section, said inner section having an opening formed therein for permitting an elongate instrument to pass therethrough in sealing engagement therewith, said seal member having a corrugated portion formed in said outer section in surrounding relationship with said opening so as to maintain the sealing engagement with an elongate instrument during off-centering of an instrument with respect to said seal member; and (d) an annular floating ring located immediately adjacent and extending from at least one of said distal and proximal surfaces of said seal member to separate said inner section from said outer section so that off-center movement of an elongate instrument extending through said opening causes lateral movement of said outer section while maintaining said inner section in sealing engagement with the instrument.
Claim 3
Dependent Claim
15 words
The trocar assembly as defined in claim 1 herein said ring is a rigid material.
Claim 4
Dependent Claim
15 words
The trocar assembly as defined in claim 1 wherein said ring is a semi-rigid material.
Claim 5
Dependent Claim
26 words
The trocar assembly as defined in claim 1 wherein said ring is integrally formed as an annular area of said seal member having an increased thickness.
Claim 6
Dependent Claim
21 words
The trocar assembly as defined in claim 1 wherein said ring is an annular plastic member molded into said seal member.
Claim 7
Dependent Claim
204 words
A trocar assembly for providing communication into an anatomical cavity, comprising: (a) a trocar tube defining an interior lumen having an open distal end portion and an open proximal end portion for accommodating axial movement of an elongate instrument of lesser cross-sectional dimension therethrough; (b) a housing adjoining said proximal end portion of said trocar tube defining a chamber having open distal end proximal end portions that communicate with said lumen and permit axial movement of an elongate instrument therethrough; and (c) an elastomeric seal member positioned in said chamber for sealing said proximal end portion of said chamber, said seal member having a distal end surface and a proximal surface, said seal member having an inner section and an outer section, said inner section having an opening formed therein for permitting an elongate instrument to pass therethrough in sealing engagement therewith, an annular floating ring located immediately adjacent and extending from at least one of said distal and proximal surfaces of said seal member to separate said inner section from said outer section so that off-center movement of an elongate instrument extending through said opening causes lateral movement of said outer section while maintaining said inner section in sealing engagement with the instrument.
Claim 8
Dependent Claim
204 words
A trocar assembly for providing communication into an anatomical cavity, comprising: (a) a trocar tube defining an interior lumen having an open distal end portion and an open proximal end portion for accommodating axial movement of an elongate instrument of lesser cross-sectional dimension therethrough; (b) a housing adjoining said proximal end portion of said trocar tube defining a chamber having open distal end proximal end portions that communicate with said lumen and permit axial movement of an elongate instrument therethrough; and (c) an elastomeric seal member positioned in said chamber for sealing said proximal end portion of said chamber, said seal member having a distal end surface and a proximal surface, said seal member having an inner section and an outer section, said inner section having an opening formed therein for permitting an elongate instrument to pass therethrough in sealing engagement therewith, an annular floating ring located immediately adjacent and extending from at least one of said distal and proximal surfaces of said seal member to separate said inner section from said outer section so that off-center movement of an elongate instrument extending through said opening causes lateral movement of said outer section while maintaining said inner section in sealing engagement with the instrument.
Claim 9
Dependent Claim
15 words
The trocar assembly as defined in claim 6 wherein said ring is a rigid material.
Claim 10
Dependent Claim
15 words
The trocar assembly as defined in claim 6 wherein said ring is a semi-rigid material.
Claim 11
Dependent Claim
26 words
The trocar assembly as defined in claim 6 wherein said ring is integrally formed as an annular area of said seal member having an increased thickness.
Claim 12
Dependent Claim
213 words
A trocar assembly for providing communication into an anatomical cavity, comprising: (a) a trocar tube defining an interior lumen having an open distal end portion and an open proximal end portion for accommodating axial movement of an elongate instrument of lesser cross-sectional dimension therethrough; (b) a housing adjoining said proximal end portion of said trocar tube defining a chamber having open distal and proximal end portions that communicate with said lumen and permit axial movement of an elongate instrument therethrough; (c) an elastomeric seal member positioned in said chamber for sealing said proximal end portion of said chamber, said seal member having an inner section and an outer section, said inner section having an opening formed therein for permitting an elongate instrument to pass therethrough in sealing engagement therewith, said seal member having a corrugated portion formed in said outer section in surrounding relationship with said opening so as to maintain the sealing engagement with an elongate instrument during off-centering of an instrument with respect to said seal member; and (d) an annular floating ring secured in direct contact with said seal member so that off-center movement of an elongate instrument extending through said opening causes lateral movement of said outer section while maintaining said inner section in sealing engagement with the instrument.
Claim 13
Dependent Claim
213 words
A trocar assembly for providing communication into an anatomical cavity, comprising: (a) a trocar tube defining an interior lumen having an open distal end portion and an open proximal end portion for accommodating axial movement of an elongate instrument of lesser cross-sectional dimension therethrough; (b) a housing adjoining said proximal end portion of said trocar tube defining a chamber having open distal and proximal end portions that communicate with said lumen and permit axial movement of an elongate instrument therethrough; (c) an elastomeric seal member positioned in said chamber for sealing said proximal end portion of said chamber, said seal member having an inner section and an outer section, said inner section having an opening formed therein for permitting an elongate instrument to pass therethrough in sealing engagement therewith, said seal member having a corrugated portion formed in said outer section in surrounding relationship with said opening so as to maintain the sealing engagement with an elongate instrument during off-centering of an instrument with respect to said seal member; and (d) an annular floating ring secured in direct contact with said seal member so that off-center movement of an elongate instrument extending through said opening causes lateral movement of said outer section while maintaining said inner section in sealing engagement with the instrument.
Claim 14
Dependent Claim
15 words
The trocar assembly as defined in claim 10 herein said ring is a rigid material.
Claim 15
Dependent Claim
15 words
The trocar assembly as defined in claim 10 wherein said ring is a rigid material.
Claim 16
Dependent Claim
173 words
A trocar assembly for providing communication into an anatomical cavity, comprising: (a) a trocar tube defining an interior lumen having an open distal end portion and an open proximal end portion for accommodating axial movement of an elongate instrument of lesser cross-sectional dimension therethrough; (b) a housing adjoining said proximal end portion of said trocar tube defining a chamber having open distal and proximal end portions that communicate with said lumen and permit axial movement of an elongate instrument therethrough; (c) an elastomeric seal member positioned in said chamber for sealing said proximal end portion of said chamber, said seal member having an inner section and an outer section, said inner section having an opening formed therein for permitting an elongate instrument to pass therethrough in sealing engagement therewith and (d) an annular floating ring secured in direct contact with said seal member so that off-center movement of an elongate instrument extending through said opening causes lateral movement of said outer section while maintaining said inner section in sealing engagement with the instrument.
Claim 17
Dependent Claim
173 words
A trocar assembly for providing communication into an anatomical cavity, comprising: (a) a trocar tube defining an interior lumen having an open distal end portion and an open proximal end portion for accommodating axial movement of an elongate instrument of lesser cross-sectional dimension therethrough; (b) a housing adjoining said proximal end portion of said trocar tube defining a chamber having open distal and proximal end portions that communicate with said lumen and permit axial movement of an elongate instrument therethrough; (c) an elastomeric seal member positioned in said chamber for sealing said proximal end portion of said chamber, said seal member having an inner section and an outer section, said inner section having an opening formed therein for permitting an elongate instrument to pass therethrough in sealing engagement therewith and (d) an annular floating ring secured in direct contact with said seal member so that off-center movement of an elongate instrument extending through said opening causes lateral movement of said outer section while maintaining said inner section in sealing engagement with the instrument.
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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) | 2001-10-26 | 2002-04-27 | 2002-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-10-26 | 2006-04-27 | 2006-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-10-26 | 2010-04-27 | 2010-10-27 | $7700.00 | Window Closed / Lapsed |