Steerable kink-resistant sheath
First Claim
1. A method of manufacturing a thin-walled tube having a distal steerable portion, comprising:
- coating a wire with a plastic material;
wrapping the coated wire around a mandrel forming a plurality of windings;
forming a primary lumen within the first wire windings;
the primary lumen having a longitudinal axis;
placing a first tube having a secondary lumen and a longitudinal axis on the first wire windings so that the longitudinal axis of the secondary lumen is spaced apart from the longitudinal axis of the primary lumen and the first tube and secondary lumen extend further in length than the first wire windings and primary lumen along the mandrel to form a distal steerable portion;
heating the wound coated wire and first tube until the plastic material melts and bonds the windings forming a wire-reinforced tube having a primary lumen and a secondary lumen;
inserting a pull-wire into the secondary lumen;
removing the mandrel;
forming an outer layer of plastic around the windings and the first tube; and
winding a second wire to encompass the windings, first tube and outer layer;
wherein the step of heating the wound coated wire and first tube includes heating the outer layer to bond the first tube, coated wire and outer layer together.
5 Assignments
0 Petitions
Accused Products
Abstract
A steerable kink resistant access device is provided having an elongated body and a steerable portion; methods for manufacturing the kink resistant device are also provided. The access sheath has an outside diameter sufficiently small so that it may be inserted into a body cavity or conduit. The access sheath typically has two internal lumen, a first lumen sized and configured as an access to a surgical site and a second lumen sized and configured to contain a tensioning device that, when acted upon, will deflect the steerable portion. The tensioning device may be directly or remotely attached to an actuation device that operates to control the tensioning and loosening of the tensioning device.
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Citations
20 Claims
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1. A method of manufacturing a thin-walled tube having a distal steerable portion, comprising:
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coating a wire with a plastic material; wrapping the coated wire around a mandrel forming a plurality of windings; forming a primary lumen within the first wire windings;
the primary lumen having a longitudinal axis;placing a first tube having a secondary lumen and a longitudinal axis on the first wire windings so that the longitudinal axis of the secondary lumen is spaced apart from the longitudinal axis of the primary lumen and the first tube and secondary lumen extend further in length than the first wire windings and primary lumen along the mandrel to form a distal steerable portion; heating the wound coated wire and first tube until the plastic material melts and bonds the windings forming a wire-reinforced tube having a primary lumen and a secondary lumen; inserting a pull-wire into the secondary lumen; removing the mandrel; forming an outer layer of plastic around the windings and the first tube; and winding a second wire to encompass the windings, first tube and outer layer; wherein the step of heating the wound coated wire and first tube includes heating the outer layer to bond the first tube, coated wire and outer layer together. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of manufacturing a thin-walled tube having a distal steerable portion, comprising:
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coating a wire with a plastic material; wrapping the coated wire around a mandrel forming a plurality of windings; forming a primary lumen within the first wire windings;
the primary lumen having a longitudinal axis;placing a first tube having a secondary lumen and a longitudinal axis on the first wire windings so that the longitudinal axis of the secondary lumen is spaced apart from the longitudinal axis of the primary lumen and the first tube and secondary lumen extend further in length than the first wire windings and primary lumen along the mandrel to form a distal steerable portion; heating the wound coated wire and first tube until the plastic material melts and bonds the windings forming a wire-reinforced tube having a primary lumen and a secondary lumen; inserting a pull-wire into the secondary lumen; removing the mandrel; and winding a second wire to encompass the windings and first tube. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification