STEERABLE KINK-RESISTANT SHEATH
First Claim
1. A surgical access device comprising:
- a tube having a substantially rigid portion and a substantially flexible portion extending from the substantially rigid portion, the tube including a primary lumen and a secondary lumen both extending through the tube, the secondary lumen having a tensioning device extending through the secondary lumen and connected to the flexible portion;
a Y-connector having a distal end connected to the tube and a proximal end including a funnel-shaped portion, the tensioning device extending through the connector from the distal end toward the proximal end;
a flexible tubing connected to the Y-connector through which the tensioning device extends;
a handle connected to the flexible tubing and including an axle disposed within the handle and a knob connected to and outside the handle, the axle connected to the tensioning device and the knob;
a pawl connected to the handle;
a trigger connected to the handle and the pawl; and
a set of teeth connected to the axle and operatively engaging with the pawl;
wherein the trigger when actuated causes the pawl to move to disengage the pawl from the teeth.
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
21 Claims
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1. A surgical access device comprising:
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a tube having a substantially rigid portion and a substantially flexible portion extending from the substantially rigid portion, the tube including a primary lumen and a secondary lumen both extending through the tube, the secondary lumen having a tensioning device extending through the secondary lumen and connected to the flexible portion; a Y-connector having a distal end connected to the tube and a proximal end including a funnel-shaped portion, the tensioning device extending through the connector from the distal end toward the proximal end; a flexible tubing connected to the Y-connector through which the tensioning device extends; a handle connected to the flexible tubing and including an axle disposed within the handle and a knob connected to and outside the handle, the axle connected to the tensioning device and the knob; a pawl connected to the handle; a trigger connected to the handle and the pawl; and a set of teeth connected to the axle and operatively engaging with the pawl; wherein the trigger when actuated causes the pawl to move to disengage the pawl from the teeth. - View Dependent Claims (2, 3, 6, 7, 8, 10, 11)
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- 5. The surgical access device of claim 5, wherein the trigger, when disposed in the second position, causes the pawl to move to disengage the pawl from the teeth.
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12. A method of manufacturing a thin-walled tube, comprising:
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coating a wire with a plastic material; wrapping the coated wire around a mandrel forming a plurality of windings; and heating the wound coated wire until the plastic material melts and bonds the windings forming a wire-reinforced tube. - View Dependent Claims (9)
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- 16. The method of claim 16, wherein the tube has a wall thickness of about 0.015″
Specification