Non-expandable transluminal access sheath
First Claim
Patent Images
1. A transluminal sheath adapted for insertion into a mammalian body vessel or cavity comprising:
- an axially elongate composite sheath tube with a proximal and a distal end and a central through lumen, said composite sheath tube comprising an outer layer, an inner layer, and a reinforcing layer, wherein the outer layer and the inner layer are fabricated from polymeric materials;
a hub coupled to the proximal end of the sheath tube, a central obturator that is configured to occlude the central lumen of the sheath during insertion; and
a guidewire lumen within the obturator.
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Abstract
A transluminal sheath is disclosed that permits instrumentation to be passed therethrough. The transluminal sheath comprises a composite structure with an inner layer, an outer layer, and a reinforcing layer. The materials comprising the inner and outer layer are plastically deformable and maintain their shape, once bent into a specific configuration. The reinforcing layer further has radiopacity enhancing coatings to improve visibility under fluoroscopy and a system of flutes running longitudinally, to enhance fluid transport and reduce friction.
220 Citations
42 Claims
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1. A transluminal sheath adapted for insertion into a mammalian body vessel or cavity comprising:
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an axially elongate composite sheath tube with a proximal and a distal end and a central through lumen, said composite sheath tube comprising an outer layer, an inner layer, and a reinforcing layer, wherein the outer layer and the inner layer are fabricated from polymeric materials;
a hub coupled to the proximal end of the sheath tube, a central obturator that is configured to occlude the central lumen of the sheath during insertion; and
a guidewire lumen within the obturator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification