US6702787B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trocar seal system
Assignee: Covidien LP
•
Filing: 2002-06-06
•
Granted: 2004-03-09
•
Expires: 2022-06-06
Abstract
Abstract A seal assembly for reception of an elongated surgical instrument is provided which includes a body having at least one opening configured and dimensioned to permit entry of an elongated surgical instrument and defining a central longitudinal axis; a seal member formed of a resilient material and defining an aperture therein, the aperture being configured and dimensioned such that insertion of the surgical instrument into the aperture causes the resilient material defining the aperture to resiliently contact the outer surface of the surgical instrument in a substantially fluid tight manner; and a fabric layer juxtaposed relative to the resilient material. A coating may be applied to the seal member to reduce friction between the seal member and surgical instrumentation inserted therein. The coating is preferably a hydrocyclosiloxane membrane prepared by plasma polymerization process.
Inventors
- 👤 David C. Racenet
- 👤 Gene A. Stellon
- 👤 William J. Vumback
- 👤 Joseph Pasqualucci
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:57
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/34; A61B17/02; A61B17/0293; A61B17/0218; A61B17/3417; A61B17/3421; A61B17/3423; A61B17/3462; A61B17/3498; A61M; A61M39/00; A61M39/02; A61M39/06; A61M2039/0626; A61M2039/0673; A61M2039/0686; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/877; Y10T137/87788; Y10T137/87804; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1056; Y10T156/1057; Y10T156/1062; Y10T156/1074; Y10T156/1075
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
98 words
A seal assembly for reception of an elongated surgical instrument, which comprises: a body having at least one opening configured and dimensioned to permit entry of an elongated surgical instrument and defining a central longitudinal axis; a seal member formed of a resilient material and defining an aperture therein, the aperture being configured and dimensioned such that insertion of the surgical instrument into the aperture causes the resilient material defining the aperture to resiliently contact the outer surface of the surgical instrument in a substantially fluid tight manner; and a fabric layer juxtaposed relative to the resilient material.
Claim 2
Dependent Claim
98 words
A seal assembly for reception of an elongated surgical instrument, which comprises: a body having at least one opening configured and dimensioned to permit entry of an elongated surgical instrument and defining a central longitudinal axis; a seal member formed of a resilient material and defining an aperture therein, the aperture being configured and dimensioned such that insertion of the surgical instrument into the aperture causes the resilient material defining the aperture to resiliently contact the outer surface of the surgical instrument in a substantially fluid tight manner; and a fabric layer juxtaposed relative to the resilient material.
Claim 3
Dependent Claim
37 words
A seal assembly for reception of an elongated surgical instrument according to claim 1 , which further comprises a coating applied to the seal member to reduce friction between the seal member and surgical instrumentation inserted therein.
Claim 4
Dependent Claim
27 words
A seal assembly for reception of an elongated surgical instrument according to claim 2 , wherein the coating is a hydrocyclosiloxane membrane prepared by plasma polymerization process.
Claim 5
Dependent Claim
45 words
A seal assembly for reception of an elongated surgical instrument according to claim 1 , which further comprises a ring member secured to the seal member and having a dampening element disposed between a surface of the ring member and a surface of the body.
Claim 6
Dependent Claim
61 words
A seal assembly comprising: a housing having a throughbore; and a seal member supported within the housing, the seal member being formed of a resilient material, the resilient material having a top surface and a bottom surface, the seal member having fabric material positioned adjacent the resilient material and having an opening formed therein aligned with the throughbore in the housing.
Claim 7
Dependent Claim
61 words
A seal assembly comprising: a housing having a throughbore; and a seal member supported within the housing, the seal member being formed of a resilient material, the resilient material having a top surface and a bottom surface, the seal member having fabric material positioned adjacent the resilient material and having an opening formed therein aligned with the throughbore in the housing.
Claim 8
Dependent Claim
27 words
A seal assembly according to claim 5 , wherein the seal member has fabric material positioned on both the top and bottom surfaces of the resilient material.
Claim 9
Dependent Claim
14 words
A seal assembly according to claim 5 , wherein the resilient material is polyisoprene.
Claim 10
Dependent Claim
32 words
A seal assembly according to claim 5 , wherein the seal member includes a coating of material for reducing friction between the seal member and an instrument inserted through the seal member.
Claim 11
Dependent Claim
15 words
A seal assembly according to claim 8 , wherein the coating is a hydrocyclosiloxane membrane.
Claim 12
Dependent Claim
41 words
A seal assembly according to claim 5 , further including a ring assembly including a first ring member supported on the top surface of the seal member and a second ring member supported on the bottom surface of the seal member.
Claim 13
Dependent Claim
21 words
A seal assembly according to claim 10 , wherein the first and second ring members are adapted to be snap-fitted together.
Claim 14
Dependent Claim
36 words
A seal assembly according to claim 5 , wherein the housing includes an upper housing component and a lower housing component, the upper and lower housing components being positioned on opposite sides of the seal member.
Claim 15
Dependent Claim
19 words
A seal assembly according to claim 5 , wherein the fabric material is positioned between layers of resilient material.
Claim 16
Dependent Claim
20 words
A seal assembly according to claim 5 , wherein the seal assembly is adapted to releasably engage a cannula assembly.
Claim 17
Dependent Claim
16 words
A seal assembly according to claim 5 , wherein the seal member has an hourglass configuration.
Claim 18
Dependent Claim
16 words
A seal assembly according to claim 5 , wherein the seal member has a conical configuration.
Claim 19
Dependent Claim
37 words
A seal assembly according to claim 5 , further including a second seal member, the second seal member having an opening formed therein having a diameter which is larger than the opening in the first seal member.
Claim 20
Dependent Claim
21 words
A seal assembly according to claim 10 , further including a clamping element positioned between the ring assembly and the housing.
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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) | 2007-03-09 | 2007-09-08 | 2008-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2011-03-09 | 2011-09-08 | 2012-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2015-03-09 | 2015-09-08 | 2016-03-09 | $7700.00 | Window Closed / Lapsed |