Patent EP0495263B1 successfully refreshed from Google Patents.
EP0495263B1
Expired / Lapsed
EP
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Multilumen catheter
Assignee: Kendall Co
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Filing: 1991-12-24
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Granted: 1995-03-15
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Expires: 2011-12-24
Abstract
No abstract record available.
Inventors
- 👤 David C. Beattie
- 👤 Troy Nichols
- 👤 James P. Cianci
- 👤 James R. Gross
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-28 20:53
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/0021; A61M25/0023; A61M25/0026; A61M25/0067; A61M25/008; A61M2025/0081; A61M25/0032; A61M25/0043; A61M25/0054; A61M25/0068
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
237 words
A multilumen catheter (10), characterised in that it comprises: a first elongate flexible catheter tube (18) having a proximal end, a distal end and an outer wall and an inner wall; an elongated flexible dual-lumen catheter tube (20) having a proximal end, a distal end, an outer wall and a cross-section which is smaller than the cross-section of said first catheter tube, said dual-lumen catheter tube disposed within said first catheter tube and defining a single, independent lumen (24) in the space between the inner wall (26) of said first catheter tube and the outer wall of said dual-lumen catheter tube, said single lumen extending throughout the length of the first catheter tube and terminating with at least one distal terminus (50) defining at least one opening in said first catheter tube; said dual-lumen catheter tube extending beyond said distal end of said first catheter tube and including first (30) and second (32) independent lumens integrally formed and extending throughout said dual-lumen catheter tube and each having a distal terminus defining an opening in said dual-lumen tube, the distal terminus (44) of said first lumen (30) being coextensive with the distal end (46) of said dual-lumen catheter tube, the distal terminus (60) of said second lumen being upstream from the distal terminus of said first lumen, and the distal terminus of each of the first and second lumens being below said distal terminus of said single lumen.
Claim 2
Dependent Claim
84 words
The catheter of claim 1 further comprising: extension tubing (36, 38) separately coupled to each of said first and second lumens at the proximal end of said dual-lumen catheter tube; extension tubing (34) separately coupled to said single lumen at said proximal end of said first catheter tube; a protective hub (40) encapsulating and securing the proximal end of said first catheter tube, the proximal end of said dual-lumen catheter tube, and extension tubing coupling said single lumen and said first and second lumens.
Claim 3
Dependent Claim
21 words
The catheter of claim 2 wherein said extension tubing (34, 36, 38) is further configured for coupling to fluid transfer devices.
Claim 4
Dependent Claim
21 words
The catheter of claim 2 wherein said dual-lumen catheter tube (20) extends beyond the proximal end of first catheter tube (18).
Claim 5
Dependent Claim
27 words
The catheter of claim 1 wherein said distal end of said first catheter tube (18) is tapered below said distal terminus (50) of said single lumen (24).
Claim 6
Dependent Claim
28 words
The catheter of claim 1 wherein said second lumen (32) of said dual-lumen catheter tube (20) is eliminated below said distal terminus (60) of said second lumen (32).
Claim 7
Dependent Claim
38 words
The catheter of claim 1 wherein said distal terminus (50) of said single lumen (24) defines at least one side opening in said first catheter tube (18) slightly upstream from said distal end of said first catheter tube.
Claim 8
Dependent Claim
27 words
The catheter of claim 1 wherein said distal terminus (50) of said single lumen (24) terminates coextensively with the distal end of said first catheter tube (18).
Claim 9
Dependent Claim
54 words
The catheter of claim 1 wherein said distal terminus (60) of said second lumen (32) defines a side opening upstream from the distal terminus (44) of the first lumen (30) of the dual-lumen catheter tube (20) and downstream from the distal terminus (50) of the single lumen (24) of the first catheter tube (18).
Claim 10
Dependent Claim
34 words
The catheter of claim 1 wherein said first catheter tube (18) and said dual-lumen catheter tube (20) are made from materials selected from the group consisting of polyurethane, silicone polyvinyl chloride (PVC), and nylon.
Claim 11
Dependent Claim
21 words
The catheter of claim 1 wherein said first catheter tube (18) and said dual-lumen catheter tube (20) are made from polyurethane.
Claim 12
Dependent Claim
32 words
The catheter of claim 10 wherein said dual-lumen catheter tube (20) is made from a material which is less rigid than the material from which the first catheter tube (18) is made.
Claim 13
Dependent Claim
25 words
The catheter of claim 11 wherein said dual-lumen catheter tube (20) is made from a less rigid polyurethane than is the first catheter tube (18).
References Cited (Backward Citations)
No citation records indexed.
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