EP0316096B1
Expired / Lapsed
EP
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Universal hemostasis cannula
Assignee: St Jude Medical LLC
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Filing: 1988-10-28
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Granted: 1995-02-15
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Expires: 2008-10-28
Abstract
No abstract record available.
Inventors
- 👤 John J. Fleischhacker
- 👤 Greg S. Sutton
- 👤 Mark D. Krueger
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 09:51
CPC Classifications
A; A61; A61M; A61M39/00; A61M39/02; A61M39/06; A61M39/0606; A61M2039/062; A61M2039/0633; A61M2039/064; A61M2039/0646; A61M2039/0653; A61M2039/0686; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/788; Y10T137/7882
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
223 words
A hemostasis cannula unit comprising: (a) a longitudinally extended valve housing (3) having a first opening (21) and a central longitudinal chamber (8) communicating with a second opening (22); (b) a cap means (2) enclosing a first opening of the valve housing and providing a hole (12) to permit the insertion of a catheter into the housing's first opening through the central chamber and out the opposite second opening; and (c) a one-piece seal means (6) located within said central chamber and having a sealing neck (14) and sealing exit lips (16, 17) such that a catheter may be inserted through the hole in the cap means, the sealing neck and the sealing exit lips and out the second opening of the longitudinally extended housing, wherein the sealing neck is readily expandable upon insertion of a catheter to a diameter of less than the internal diameter of the valve housing and said sealing exit lips are formed of at least a pair of opposing, normally closed lips, characterised in that the seal means is provided with a conical receiving area (13) which is tapered into the sealing neck and in that the sealing neck is provided with a waist (23) which mirrors the internal shape of the sealing neck so that a relatively constant wall thickness is maintained in the sealing neck area.
Claim 2
Dependent Claim
22 words
The hemostasis cannula unit of Claim 1 wherein the valve housing includes an exit port (9) providing access to the central chamber.
Claim 3
Dependent Claim
44 words
The hemostasis cannula unit of Claim 1 or 2 wherein the sealing lips are formed from a slit (20) in a flattened section of a semi-spherical valve sealing chamber (15), said slit being generally perpendicular to the axis of the longitudinally extended valve housing.
Claim 4
Dependent Claim
27 words
The hemostasis cannula unit of Claim 1, 2 or 3 wherein the sealing neck has an opening having a diameter slightly less than that of a guidewire.
Claim 5
Dependent Claim
20 words
The hemostasis cannula unit of any of Claims 1 to 4 wherein the sealing neck is adjacent the cap means.
Claim 6
Dependent Claim
18 words
The hemostasis cannula unit of any of Claims 1 to 5 in combination with a sheath means (7).
Claim 7
Dependent Claim
18 words
The hemostasis cannula unit of Claim 6 wherein the sheath means is tapered at the distal end (19).
Claim 8
Dependent Claim
123 words
A one-piece hemostasis valve seal means (6) for location within the central passage of a hemostasis valve housing (3) comprising a sealing neck (14) and sealing exit lips (16, 17) wherein the sealing neck is readily expandable upon insertion of a catheter and wherein the sealing exit lips are formed of at least a pair of opposing, normally closed lips through which a catheter may be inserted, characterised in that the seal means is provided with a conical receiving area (13) which is tapered into the sealing neck and in that the sealing neck is provided with a waist (23) which mirrors the internal shape of the sealing neck so that a relatively constant wall thickness is maintained in the sealing neck area.
References Cited (Backward Citations)
No citation records indexed.
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