39results about How to "Avoid radial expansion" patented technology

An occlusion device suitable for endovascular treatment of an aneurysm in a blood vessel in a patient, including a substantially tubular structure having a proximal end region and a distal end region, having a first, expanded condition and a second, collapsed condition. The device has dimensions in the second, collapsed condition suitable for insertion through vasculature of the patient and through a neck of the aneurysm. The device further includes a control ring having a substantially annular body disposed on the proximal end region of the structure and at least substantially circumscribing the proximal end region to prevent radial expansion of the proximal end region and to provide an engagement feature during manipulation of the occlusion device.

An occlusion device suitable for endovasculature treatment of an aneurysm in a blood vessel in a patient, including a substantially tubular structure having a proximal end region and a distal end region, having a first, expanded condition and a second, collapsed condition. The device has dimensions in the second, collapsed condition suitable for insertion through vasculature of the patient and through a neck of the aneurysm. The device further includes a control ring having a substantially annular body disposed on the proximal end region of the structure and at least substantially circumscribing the proximal end region to prevent radial expansion of the proximal end region and to provide an engagement feature during manipulation of the occlusion device.

A radially expandable stent-graft endoprosthesis includes a knitted tubular structure circumferentially disposed and securably attached to the stent. The knitted tubular structure has a warp knit pattern of interlacing yarns with at least a two-needle underlap to provide greater than 50 percent longitudinal stretchability while substantially inhibiting dilation. A knitted tubular graft is combined with an ePTFE liner to form a composite with greater than 50 percent longitudinal stretchability is also provided. The knitted tubular graft also has a warp knit pattern of interlacing yarns with at least a two-needle underlap to provide the longitudinal stretchability while also substantially inhibiting dilation.

A radially expandable stent-graft endoprosthesis includes a knitted tubular structure circumferentially disposed and securably attached to the stent. The knitted tubular structure has a warp knit pattern of interlacing yarns with at least a two-needle underlap to provide greater than 50 percent longitudinal stretchability while substantially inhibiting dilation. A knitted tubular graft is combined with an ePTFE liner to form a composite with greater than 50 percent longitudinal stretchability is also provided. The knitted tubular graft also has a warp knit pattern of interlacing yarns with at least a two-needle underlap to provide the longitudinal stretchability while also substantially inhibiting dilation.

A process and plant for laying a pipe in a trench comprising placing a flattened tubular preform in the trench, the perform having a reinforcement surrounding an inner seal, the reinforcement being impregnated with a resin, and inflating the perform in the trench.

A radially expandable stent-graft endoprosthesis is provided. The graft included in the stent-graft is a knitted tubular structure circumferentially disposed and securably attached to the stent. The knitted tubular structure has a warp knit pattern of interlacing yarns with at least a two-needle underlap to provide greater than 150 percent longitudinal stretchability while substantially inhibiting dilation. A knitted tubular graft and a knitted medical fabric with greater than 150 percent longitudinal stretchability are also provided.

A golf car having a hydraulic disk brake system responsive to hydraulic fluid pressure generated from a master cylinder. A brake pedal and associated linkage provides input to a master cylinder to generate a hydraulic fluid pressure to control a brake caliper assembly. A flexible brake line is fluidly coupled between the brake pedal and the disk brake system for carrying the hydraulic fluid. The brake line is comprised of a flexible inner member and a braided outer member. The brake pedal has a range of travel, where a first portion of the range defines a service mode of operation and a second portion of the range defines a parking mode of operation. In the parking mode of operation, the brake pedal and linkage engages a detent to maintain application of the brake to provide a parking mode of operation.

A cartridge (120) secured to either a nozzle (110) and / or adaptor unit wherein the nozzle or adaptor unit comprises a substantially annular portion (135) adapted to fit snugly around an end of the cartridge (120) wherein the substantially annular portion (135) acts as a seal against any leakage from the cartridge (120).

A subsea flexible pipe, including an internal sealing sheath (18), at least one tensile pressure armor layer (14, 16) wound around the internal sealing sheath, a retaining layer (12) having at least one reinforcing strip (34), the reinforcing strip having filamentary strands (36) directed substantially longitudinally. The filamentary strands (36) having polymer fibers (38). The polymer fibers have, at room temperature, an elastic modulus in excess of 55 GPa so that the reinforcing strip is able to prevent radial expansion of the armor layer, when the armor layer experiences radial force; and the polymer fibers furthermore have an elongation at break in excess of 4% such that the reinforcing strip is able to undergo deformation without breaking.

An occlusion device suitable for endovasculature treatment of an aneurysm in a blood vessel in a patient, including a substantially tubular structure having a proximal end region and a distal end region, having a first, expanded condition and a second, collapsed condition. The device has dimensions in the second, collapsed condition suitable for insertion through vasculature of the patient and through a neck of the aneurysm. The device further includes a control ring having a substantially annular body disposed on the proximal end region of the structure and at least substantially circumscribing the proximal end region to prevent radial expansion of the proximal end region and to provide an engagement feature during manipulation of the occlusion device.

An injection device for delivering a dose of medicament from a syringe includes: a housing including a forward body and rearward body and wherein the forward and rearward body are axially moveably interconnected; a drive mechanism arranged, in use, to be released from an energized position to deliver a dose from the syringe; a latch arranged to hold the drive mechanism in the energized position; and a trigger for releasing the latch; wherein the injection device further includes an interlock arrangement moveable between a locked position in which release of the drive mechanism is prevented and an unlocked position in which the drive mechanism may be released, the interlock arrangement including: an internal blocking formation associated with the rearward body and positioned between the latch and trigger, and wherein in use, forward movement of the rearward body relative to the forward body moves the blocking formation into the unlocked position.

The invention relates to the technical field of bionics, in particular to an inchworm imitated soft robot. The inchworm imitated soft robot can be driven through combination of a pneumatic manner anda shape memory alloy and comprises a head component, a trunk component and a tail component. The head component and the tail component are arranged at the two ends of the trunk component. The trunk component comprises a trunk body, a head installation module and a tail installation module, and the head installation module and the tail installation module are arranged at the two ends of the trunk body. The trunk body is in a regular long strip shape, the cross section of the trunk body is in a semi-circular shape, and the periphery of the semi-circle of the trunk body is provided with a spiralgroove. The head installation module is connected with the head component, the tail installation module is connected with the tail component, and the rectangular bottom of the trunk body is provided with an installation groove used for installing memory metal.

A cartridge (120) secured to either a nozzle (110) and / or adaptor unit wherein the nozzle or adaptor unit comprises a substantially annular portion (135) adapted to fit snugly around an end of the cartridge (120) wherein the substantially annular portion (135) acts as a seal against any leakage from the cartridge (120).

One aspect of the present invention provides a poke-through assembly for installation in a hole in a floor structure. The floor structure defines a floor in a first working environment and a ceiling in a second working environment. The poke-through assembly includes at least one intumescent member, a base plate and an intumescent enclosure. The intumescent member is disposed at least partially between the floor of the first working environment and the ceiling of the second working environment. The base plate supports and is disposed below the intumescent member for limiting the expansion of the intumescent member toward or into the second working environment. Another aspect of the present invention provides a poke-through assembly including an upper frame, at least one intumescent member and an intumescent cover. The intumescent member is disposed below the upper frame. The intumescent cover supports the intumescent member and circumferentially surrounds at least a portion of the intumescent member, wherein expansion of the intumescent member is impeded by the cover.

One aspect of the present invention provides a poke-through assembly for installation in a hole in a floor structure. The floor structure defines a floor in a first working environment and a ceiling in a second working environment. The poke-through assembly includes at least one intumescent member, a base plate and an intumescent enclosure. The intumescent member is disposed at least partially between the floor of the first working environment and the ceiling of the second working environment. The base plate supports and is disposed below the intumescent member for limiting the expansion of the intumescent member toward or into the second working environment. Another aspect of the present invention provides a poke-through assembly including an upper frame, at least one intumescent member and an intumescent cover. The intumescent member is disposed below the upper frame. The intumescent cover supports the intumescent member and circumferentially surrounds at least a portion of the intumescent member, wherein expansion of the intumescent member is impeded by the cover.

Articulation devices, systems, methods for articulation, and methods for fabricating articulation structures make use of balloon arrays, with inflation of the balloons locally altering articulation. Inflation fluid may be directed toward the balloons from an inflation fluid source via a series of channels, the balloons and channels included in a helical multi-balloon assembly. The balloons may be supported by encasing the helical balloon assembly in a polymer matrix, such as by winding the balloon assembly onto a mandrel and dip-coating some or all of the assembly in an elastomer such as a silicone, a urethane, or the like. The balloons may be supported by one or more spring, with loops of the spring(s) optionally being inward of the balloons, outward of the balloons, or interspersed between the balloons, and / or a mesh tube, braid, or other compliant materials may be included. Articulation balloon arrays may be disposed in an annular space bordered by inner and outer tubular sheaths, with a portion of one or both sheaths being axially slidable relative to the balloons so as to facilitate elongation and bending.

Wheel hub and method for forming a wheel hub. Wheel hub includes a rim having a circumferential surface with axial ends, and one rim flange being arranged at each axial end of the circumferential surface. The rim includes a fiber-reinforced plastic as a main component and each of the rim flanges is releasably connectable to the rim.

An occlusion device suitable for endovascular treatment of an aneurysm in a blood vessel in a patient, including a substantially tubular structure having a proximal end region and a distal end region, having a first, expanded condition and a second, collapsed condition. The device has dimensions in the second, collapsed condition suitable for insertion through vasculature of the patient and through a neck of the aneurysm. The device further includes a control ring having a substantially annular body disposed on the proximal end region of the structure and at least substantially circumscribing the proximal end region to prevent radial expansion of the proximal end region and to provide an engagement feature during manipulation of the occlusion device.

The invention relates to a zigzag push head for tube hydroforming. The zigzag push head comprises a push head body, a zigzag seal head is arranged at the front end of the push head body and comprises a guide head and a zigzag seal segment located behind the guide head, the guide head is a cylinder with the diameter smaller than the inner diameter of a tube blank, and the front end of the guide head is chamfered; the zigzag seal segment comprises N round bosses equal in length, the diameters of the N round bosses are gradually increased in a equal difference mode, the diameter of the first round boss is larger than that of the guide head cylinder, the diameter of the last round boss is smaller than that of the push head body, and the slope of 15-20 degrees is formed between the outer diameter of the first round boss and the last round boss; N is any integer ranging from three to five. The push head is high in airtightness with the end of the tube and can prevent the guide segment from being stuck, and it is avoided that radial force is generated under the action of thrust to cause radial expansion of the tube end, and consequently the tube is stuck in a mold cavity; material feed and supplementary are smoother and more uniform, which is beneficial for tube blank forming.

Aspects of the present invention relate to a method for locating an expandable implant for treating BPH within the prostatic urethra of a patient. The delivery device comprises an inner tube and an outer sleeve moveable relative to the inner tube between a stored position and a deployed position. The outer sleeve surrounds the inner tube to define an annulus therebetween and the expandable implant is retained within the annulus when the outer sleeve is in the stored position.

Articulation devices, systems, methods for articulation, and methods for fabricating articulation structures make use of balloon arrays, with inflation of the balloons locally altering articulation. Inflation fluid may be directed toward the balloons from an inflation fluid source via a series of channels, the balloons and channels included in a helical multi-balloon assembly. The balloons may be supported by encasing the helical balloon assembly in a polymer matrix, such as by winding the balloon assembly onto a mandrel and dip-coating some or all of the assembly in an elastomer such as a silicone, a urethane, or the like. The balloons may be supported by one or more spring, with loops of the spring(s) optionally being inward of the balloons, outward of the balloons, or interspersed between the balloons, and / or a mesh tube, braid, or other compliant materials may be included. Articulation balloon arrays may be disposed in an annular space bordered by inner and outer tubular sheaths, with a portion of one or both sheaths being axially slidable relative to the balloons so as to facilitate elongation and bending.

Aspects of the present invention relate to a method for locating an expandable implant for treating BPH within the prostatic urethra of a patient. The delivery device comprises an inner tube and an outer sleeve moveable relative to the inner tube between a stored position and a deployed position. The outer sleeve surrounds the inner tube to define an annulus therebetween and the expandable implant is retained within the annulus when the outer sleeve is in the stored position.

A dilatation device 10 includes a support 14 and at least one inflatable tube 16. The inflatable tube is wound helically around the support and also defines a series of inflatable zones 26 along its length, with successive inflatable zones spaced by an intermediate zone 28 that is more resistive to radial expansion than the inflatable zones. The inflatable tube further defines a fluid inlet 22, 24 for: introducing fluid to inflate the inflatable zones; and extracting fluid from the inflatable tube to deflate it, with each inflatable zone being in fluid communication with its successive inflatable zones via the intermediate zones. The axial critical buckling load of the inflatable zones is less than the radial critical buckling load of the inflatable zones, to cause the inflatable zones to concertina axially when the inflatable tube is depressurized, thereby causing the intermediate zones to displace towards each other.

The invention discloses a self-pressing type film antenna unfolding mechanism, and belongs to the technical field of unfolding mechanisms. The self-pressing type film antenna unfolding mechanism comprises a box body and a winding cylinder, wherein the winding cylinder is fixed in the box body and is in a hollow cylinder shape; the self-pressing type film antenna unfolding mechanism further comprises a motor connected in the box body and extension arms; the output end of the motor is fixedly connected with a winding shaft, and the winding shaft is located in the winding cylinder and is collinear with the axis of the winding cylinder; and one end of each extension arm is fixed on the winding cylinder and is wound on the side wall of the winding shaft, and a film antenna body is fixed on a framework formed by the extension arms. When the self-pressing type film antenna unfolding mechanism works, pressing parts and the extension arms are uniquely corresponding to each other at each unfolding or winding moment, so that the motion states of the extension arms are relatively constant when the extension arms are unfolded and wound, the extension arms are prevented from expanding in the radial direction in the winding cylinder and even bending and becoming unstable is prevented, and the phenomenon that the film antenna body cannot be unfolded occurs.

A cover for a clutch system with a hydraulic piston is axially retained by a retaining ring. The cover has a retaining feature to radially retain this retaining ring against centrifugal forces.

An axial load bearing assembly that may be for a steering gear box apparatus includes a first member, a second member, a jacket, and an elastomeric ring. The first member includes a first surface facing axially with respect to a centerline. The second member is constructed and arranged to move axially with respect to the first member between an extended state and a compressed state. The second member includes a second surface that axially opposes the first surface. The jacket is engaged to one of the first and second members, and includes a face facing radially inward. The elastomeric ring is disposed axially between the first and second members for axial compression, and is in biased contact with the face at least when in the compressed state preventing radial expansion of the elastomeric ring during axial compression.

The invention relates to a zigzag push head for tube hydroforming. The zigzag push head comprises a push head body, a zigzag seal head is arranged at the front end of the push head body and comprises a guide head and a zigzag seal segment located behind the guide head, the guide head is a cylinder with the diameter smaller than the inner diameter of a tube blank, and the front end of the guide head is chamfered; the zigzag seal segment comprises N round bosses equal in length, the diameters of the N round bosses are gradually increased in a equal difference mode, the diameter of the first round boss is larger than that of the guide head cylinder, the diameter of the last round boss is smaller than that of the push head body, and the slope of 15-20 degrees is formed between the outer diameter of the first round boss and the last round boss; N is any integer ranging from three to five. The push head is high in airtightness with the end of the tube and can prevent the guide segment from being stuck, and it is avoided that radial force is generated under the action of thrust to cause radial expansion of the tube end, and consequently the tube is stuck in a mold cavity; material feed and supplementary are smoother and more uniform, which is beneficial for tube blank forming.

An architectural covering arrangement having two side rails for mounting in parallel either side of a window pane and at least one movable end rail for mounting perpendicular to the side rails and extending from one side rail to the other side rail, the side rails having on respective faces to be mounted on a window pane, a two-layer fastening structure with one of the layers adhered to the respective side rail and the other of the two layers to be adhered to the window pane, the two layers being freely attachable and detachable from one another.

The present invention relates to an umbrella, especially to a bumbershoot, having an umbrella bar (2) and an umbrella stand (3) disposed on the umbrella bar (2). The umbrella stand includes an umbrella net and a strutting spoke, wherein the umbrella net is composed of an umbrella spoke (4) and supporting an umbrella fabric (5), while the strutting spoke can be hinged with the slider (6) longitudinally moving to be supported on the umbrella bar (2) and the umbrella spoke (4), wherein the umbrella stand (3) has the width larger than 0.9 m in the opening state, characterized in that, the umbrella bar (2) includes a hollow standpipe (7) made of fiberous glass reinforced plastic (GFK) and a sliding tube (8) made of GFK, wherein the wall thickness of the standpipe (7) is less than / equal to 2 mm, preferably 1 mm. The sliding tube (8) can make longitudinal shift in the standpipe (7) and be fixed in any axial joint relative to the standpipe (7).