B29C55/22

A METHOD AND PREFORM FOR FORMING A DEVICE COMPRISING A SHAPE MEMORY POLYMER

There is provided herein a method of manufacturing a device comprising at least a first fibre using a draw apparatus, the method comprising: providing a first preform comprising a shape memory polymer to the draw apparatus; heating a first portion of the first preform; and drawing, using the draw apparatus, the heated first portion in order to form the first fibre.

TAPERED IMPLANTABLE DEVICE AND METHODS FOR MAKING SUCH DEVICES

A tapered implantable device includes an ePTFE tubular member having a tapered length portion. The tapered length portion provides rapid recovery properties. The tapered length portion can feature a microstructure that includes a multiplicity of bent fibrils.

TAPERED IMPLANTABLE DEVICE AND METHODS FOR MAKING SUCH DEVICES

A tapered implantable device includes an ePTFE tubular member having a tapered length portion. The tapered length portion provides rapid recovery properties. The tapered length portion can feature a microstructure that includes a multiplicity of bent fibrils.

Method and system for stretching a tubular material, over a mandrel
11724438 · 2023-08-15 · ·

A method and system for stretching a length of Teflon (PTFE) tubing where a mandrel is fully inserted therein requires firmly supporting and tensioning the PTFE tubing at ends thereof and grabbing the supported tubing at two adjacent locations at the center thereof and sliding and gripping with grippers from the center towards the two ends thereby stretching and pulling the length of PTFE tubing.

Method and system for stretching a tubular material, over a mandrel
11724438 · 2023-08-15 · ·

A method and system for stretching a length of Teflon (PTFE) tubing where a mandrel is fully inserted therein requires firmly supporting and tensioning the PTFE tubing at ends thereof and grabbing the supported tubing at two adjacent locations at the center thereof and sliding and gripping with grippers from the center towards the two ends thereby stretching and pulling the length of PTFE tubing.

Methods and apparatus for fabricating porous three-dimensional tubular scaffolds

Disclosed herein are three-dimensional porous tubular scaffolds for cardiovascular, periphery vascular, nerve conduit, intestines, bile conduct, urinary tract, and bone repair/reconstruction applications, and methods and apparatus for making the same.

Methods and apparatus for fabricating porous three-dimensional tubular scaffolds

Disclosed herein are three-dimensional porous tubular scaffolds for cardiovascular, periphery vascular, nerve conduit, intestines, bile conduct, urinary tract, and bone repair/reconstruction applications, and methods and apparatus for making the same.

Continuous polymeric liner production methods for conformable pressure vessels

A method and apparatus for forming a pressure vessel liner are disclosed. One method includes forming an extruded tube by extruding a parison through a die and a mandrel and forming main body sections and return line sections in the extruded tube according to a first pattern. A cross-sectional area of the return line sections is smaller than a cross-sectional area of the main body sections. The method further includes changing the pattern according to which the main body sections and the return line sections are formed from the first pattern to a second pattern without stopping the forming of the extruded tube and forming the main body sections and the return line sections in the extruded tube according to the second pattern.

Continuous polymeric liner production methods for conformable pressure vessels

A method and apparatus for forming a pressure vessel liner are disclosed. One method includes forming an extruded tube by extruding a parison through a die and a mandrel and forming main body sections and return line sections in the extruded tube according to a first pattern. A cross-sectional area of the return line sections is smaller than a cross-sectional area of the main body sections. The method further includes changing the pattern according to which the main body sections and the return line sections are formed from the first pattern to a second pattern without stopping the forming of the extruded tube and forming the main body sections and the return line sections in the extruded tube according to the second pattern.

TAPERED HYDRAULIC HOSE, METHODS OF MAKING, AND APPLICATIONS THEREOF IN ROBOT SYSTEMS

A robot has a body, a hydraulic control system physically coupled to the body, and a hydraulically-actuated component physically coupled to the body. The hydraulically-actuated component is hydraulically coupled to the hydraulic control system by a hydraulic hose. The hydraulic hose has a length, at least a portion of which extends from a first end to a second end, and a diameter, wherein the diameter of the hydraulic hose at both the first end and the second end is a first diameter, and wherein the at least a portion of the length includes a tapered section in which the diameter of the hydraulic hose decreases, continuously and monotonically, to a second diameter, the second diameter being less than the first diameter. The body includes a restricted region through which the hydraulic hose passes in traversing a path between the hydraulic control system and the hydraulically-actuated component.