CA2660831A1 - Caged floating seal assembly - Google Patents

Caged floating seal assembly Download PDF

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Publication number
CA2660831A1
CA2660831A1 CA002660831A CA2660831A CA2660831A1 CA 2660831 A1 CA2660831 A1 CA 2660831A1 CA 002660831 A CA002660831 A CA 002660831A CA 2660831 A CA2660831 A CA 2660831A CA 2660831 A1 CA2660831 A1 CA 2660831A1
Authority
CA
Canada
Prior art keywords
seal assembly
recited
segments
seal
caged
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002660831A
Other languages
French (fr)
Other versions
CA2660831C (en
Inventor
Richard H. Mcfarlane
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Teleflex Medical Inc
Original Assignee
Teleflex Medical Incorporated
Richard H. Mcfarlane
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Teleflex Medical Incorporated, Richard H. Mcfarlane filed Critical Teleflex Medical Incorporated
Publication of CA2660831A1 publication Critical patent/CA2660831A1/en
Application granted granted Critical
Publication of CA2660831C publication Critical patent/CA2660831C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3462—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M39/0613—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof with means for adjusting the seal opening or pressure
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00831—Material properties
    • A61B2017/00876—Material properties magnetic
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/34—Trocars; Puncturing needles
    • A61B17/3462—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals
    • A61B2017/3464—Trocars; Puncturing needles with means for changing the diameter or the orientation of the entrance port of the cannula, e.g. for use with different-sized instruments, reduction ports, adapter seals with means acting on inner surface of valve or seal for expanding or protecting, e.g. inner pivoting fingers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/0626—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof used with other surgical instruments, e.g. endoscope, trocar
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/0633—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof the seal being a passive seal made of a resilient material with or without an opening
    • A61M2039/0653—Perforated disc
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M39/00—Tubes, tube connectors, tube couplings, valves, access sites or the like, specially adapted for medical use
    • A61M39/02—Access sites
    • A61M39/06—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof
    • A61M2039/0686—Haemostasis valves, i.e. gaskets sealing around a needle, catheter or the like, closing on removal thereof comprising more than one seal

Abstract

A seal assembly establishes sealing engagement with a plurality of differently dimensioned instruments passing through a trocar. The seal assembly is a caged seal assembly movably disposed within the trocar and includes at least two seal segments disposable into and out of a sealing orientation relative to the instrument. A cage structure of the seal assembly includes at least two cage segments each connected to a seal segment, a biasing assembly connected to the cage structure and disposed and structured to normally bias the seal segments into sealing orientation.

Claims (33)

1. A seal assembly structured to establish sealing engagement with differently dimensioned instruments passing through a trocar, comprising:

a caged seal assembly movably disposed within the trocar in receiving relation to an instrument passing therethrough, said caged seal assembly including at least two seal segments disposable into and out of a sealing orientation relative to the instrument, said caged seal assembly dimensioned and configured to establish sealing engagement with instruments within a predetermined dimensional range, a cage structure including at least two cage segments each connected to a different one of said seal segments, a biasing assembly connected to said cage structure and disposed and structured to normally bias said seal segments into said sealing orientation, and said cage structure and said biasing assembly cooperatively structured to dispose said seal segments out of said sealing orientation upon passage therethrough of an instrument sized greater than said predetermined dimensional range.
2. A seal assembly as recited in claim 1, wherein each of said cage segments is connected to an exterior of a different one of said seal segments and movable therewith.
3. A seal assembly as recited in claim 1, wherein said cage segments are movably connected to one another.
4. A seal assembly as recited in claim 3, further comprising:

a hinge structure integrally connected to each of said cage segments.
5. A seal assembly as recited in claim 3, wherein said cage segments are removably connected to one another.
6. A seal assembly as recited in claim 5, further comprising:

a hinge structure at least partially connected to each of said cage segments.
7. A seal assembly as recited in claim 1, wherein said biasing assembly comprises an elastic member interconnected to and between said cage segments, said elastic member expandable and at least partially movable with said cage segments as said seal segments are disposed from said sealing orientation into said non-sealing orientation.
8. A seal assembly as recited in claim 7, wherein said elastic member comprises an annular configuration disposed in surrounding relation to said cage structure.
9. A seal assembly as recited in claim 1, wherein said biasing assembly comprises a magnetic coupling connected to said cage segments and disposed and structured to normally bias said cage segments and said seal segments into said sealing orientation.
10. A seal assembly as recited in claim 9, wherein said sealing orientation comprises a closed configuration of said cage segments and seal segments.
11. A seal assembly as recited in claim 10, wherein said non-sealing orientation comprises an at least partially open/separated disposition of said seal segments and cage segments.
12. A seal assembly as recited in claim 1, further comprising a supplementary seal assembly disposed in spaced relation to said caged seal assembly and along a common instrument path of travel within the trocar.
13. A seal assembly as recited in claim 12, wherein said supplementary seal assembly is dimensioned and configured to sealingly engage instruments larger than said predetermined dimensional range.
14. A seal assembly as recited in claim 13, wherein said supplementary seal assembly is floatingly disposed within the trocar.
15. A seal assembly as recited in claim 14, wherein said caged seal assembly is floatingly disposed within the trocar.
16. A seal assembly as recited in claim 15, wherein said floating disposition of said supplementary seal assembly and said caged seal assembly are at least partially dependent on an orientation of an instrument passing therethrough and disposed in sealing engagement therewith.
17. A seal assembly as recited in claim 1, wherein said caged seal assembly further comprises a guide assembly formed of a material having a predetermined rigidity and disposed on an interior of said caged seal assembly in an exposed relation to an instrument passing through said caged seal assembly.
18. A seal assembly as recited in claim 17, wherein said guide assembly comprises two guide segments each connected to a different one of said caged segments.
19. A seal assembly as recited in claim 18, wherein each of said two seal segments comprises a sealing portion disposed adjacent an inner end of a corresponding one of said guide segments.
20. A seal assembly as recited in claim 19, wherein said sealing portions collectively define a substantially annular configuration disposed in surrounding, sealing engagement with an instrument sized within said predetermined dimensional range, when said seal portions are in said sealing orientation.
21. A seal assembly as recited in claim 19, wherein each of said cage segments comprise open entrance and exit ends communicating with an interior of said caged seal assembly; each of said guide sections including an outer end disposed adjacent said entrance end and an inner end disposed adjacent a corresponding one of said sealing portions.
22. A seal assembly as recited in claim 21, wherein each of said guide sections comprises a substantially converging configuration extending from said outer end to said inner end thereof.
23. A seal assembly as recited in claim 19, further comprising a supplementary seal assembly disposed in spaced relation to said caged seal assembly and along a common instrument path of travel within the trocar.
24. A seal assembly as recited in claim 23, wherein said supplementary seal assembly is dimensioned and configured to sealingly engage instruments having a predetermined larger size than said predetermined dimensional range.
25. A seal assembly as recited in claim 24, wherein said supplementary seal assembly is floatingly disposed within the trocar.
26. A seal assembly as recited in claim 25, wherein said caged seal assembly is floatingly disposed within the trocar.
27. A seal assembly for sealing engagement with differently dimensioned instruments passing through a trocar, comprising:

a caged seal assembly including a plurality of caged segments movably connected to one another, said caged seal assembly comprising a plurality of seal segments each connected to a different one of said cage segments and movable therewith between a sealing orientation and a non-sealing orientation relative to an instrument passing through said caged seal assembly, a biasing assembly connected to said cage segments and disposed and structured to normally bias said seal segments into said sealing orientation, at least some of said cage segments including a guide portion formed of a material having a predetermined rigidity and disposed in an exposed position relative to an instrument passing through said caged seal assembly, and said plurality of cage segments and said biasing assembly cooperatively structured to facilitate disposition of said seal segments out of said sealing orientation upon passage therethrough of an instrument having a predetermined greater size than said predetermined dimensional range.
28. A seal assembly as recited in claim 27, wherein said sealing orientation comprises a closed configuration of said cage segments and seal segments.
29. A seal assembly as recited in claim 28, wherein said non-sealing orientation comprises an at least partially open/separated disposition of said seal segments and cage segments.
30. A seal assembly as recited in claim 27, further comprising:

a supplementary seal assembly disposed in spaced relation to said caged seal assembly and along a common instrument path of travel within the trocar.
31. A seal assembly as recited in claim 30, wherein said supplementary seal assembly is dimensioned and configured to sealingly engage instruments larger than said predetermined dimensional range.
32. A seal assembly as recited in claim 31, wherein said supplementary seal assembly is floatingly disposed within the trocar.
33. A seal assembly as recited in claim 32, wherein said caged seal assembly is floatingly disposed within the trocar.
CA2660831A 2006-08-25 2007-08-27 Caged floating seal assembly Active CA2660831C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US84017406P 2006-08-25 2006-08-25
US60/840,174 2006-08-25
US85258306P 2006-10-18 2006-10-18
US60/852,583 2006-10-18
PCT/US2007/018807 WO2008024502A2 (en) 2006-08-25 2007-08-27 Caged floating seal assembly

Publications (2)

Publication Number Publication Date
CA2660831A1 true CA2660831A1 (en) 2008-02-28
CA2660831C CA2660831C (en) 2012-10-02

Family

ID=39107457

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2660831A Active CA2660831C (en) 2006-08-25 2007-08-27 Caged floating seal assembly

Country Status (6)

Country Link
US (4) US7731695B2 (en)
EP (1) EP2083903B1 (en)
JP (3) JP5235017B2 (en)
CN (1) CN101505665B (en)
CA (1) CA2660831C (en)
WO (1) WO2008024502A2 (en)

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EP2083903A4 (en) 2010-07-07
EP2083903B1 (en) 2017-06-21
JP2013056160A (en) 2013-03-28
JP5235017B2 (en) 2013-07-10
US20140336584A1 (en) 2014-11-13
JP5824021B2 (en) 2015-11-25
JP2010501316A (en) 2010-01-21
WO2008024502A3 (en) 2008-08-28
US10799267B2 (en) 2020-10-13
EP2083903A2 (en) 2009-08-05
US20100241080A1 (en) 2010-09-23
WO2008024502A2 (en) 2008-02-28
CA2660831C (en) 2012-10-02
JP5412565B2 (en) 2014-02-12
US20080051739A1 (en) 2008-02-28
JP2014111096A (en) 2014-06-19
US9901373B2 (en) 2018-02-27
US20180153581A1 (en) 2018-06-07
CN101505665B (en) 2012-07-04
CN101505665A (en) 2009-08-12
US8821445B2 (en) 2014-09-02
US7731695B2 (en) 2010-06-08
WO2008024502A9 (en) 2008-10-30

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