1492results about How to "Sufficient force" patented technology

The invention, in various embodiments, is directed to a solid-state flow generator and related systems, methods and applications.

A coupling device for securing an elongate member to the spine is provided. The coupling device comprises a compressible inner member that secures an anchor member therein when the inner member is axially shifted within an outer member. Structures are provided to prevent disassembly of the anchor and coupling device prior to locking of the elongate member.

An apparatus and method for the self-administration of a plurality of doses of an intranasal liquid pharmaceutical composition, including opioid analgesics, that includes a drug delivery device containing a plurality of sealed vials, each vial containing a predetermined volume of the pharmaceutical composition, a pump assembly for conveying the liquid pharmaceutical composition from the interior of the vial and discharging it as a nasal spray in response to manual activation by the patient, and programmable means for sequentially advancing a vial to the ready position after passage of a prescribed time interval following the last activation of the delivery device.

A modular prosthetic valve device for implantation in a patient is disclosed. The valve device is designed as two or more modules to be delivered unassembled and combined into an assembled valve device in the body—e.g., in the body at or near the site where implantation occurs. The two or more modules may be a support structure and a valve assembly. The valve assembly may be formed from two or more valve sections. Because the valve device of the invention is deliverable as modules, it may have a smaller delivery diameter than pre-assembled percutaneous valves and permits use of a delivery device of reduced diameter. Delivering the valve device as modules increases the flexibility of the valve device during delivery, compared to percutaneous valve devices in the art. The invention further provides a system for and method of delivering such a modular valve device and assembling it in vivo. The modules of the valve device may be connected by pull wires for delivery sequentially to or near the implantation site in the body lumen, and then assembled by remote manipulation using the pull wires. The system may further include a temporary valve that may be deployed to maintain valvular function while the device modules are assembled. The temporary valve may be attached to the delivery device and deployed either before or after the support structure is expanded, or the temporary valve may be attached to the support structure and deployed when the support structure is expanded. Various locking mechanisms are provided for attaching the device modules together.

A net member is stretched over a frame for a seat and backrest of a chair. An engagement member attached to the end of the net member is inserted into an engagement groove on the lower surface of the basic frame. A binding frame is pressed onto the lower surface of the basic frame and the net member is fixed between the basic frame and the binding frame by the engagement piece.

Warps are woven or knitted in a mesh structure over the seat and backrest to wefts comprising elastic yarns and chenille yarns.

A compression connector for the end of a spiral corrugated coaxial cable is provided wherein one or more contact forces are provided between the connector and the cable by driving a coiled element of the connector into a groove within the corrugations of the cable and/or by causing an element of the compression connector to radially deform inward against the outer jacket of the cable.

A coupling device for securing an elongate member to the spine is provided. The coupling device comprises a compressible inner member that secures an anchor member therein when the inner member is axially shifted within an outer member. The elongate member is retained within the device by an axially inserted locking member, and may be secured independently of the anchor member. The coupling device and anchor may be configured to provide increased angulation of the anchor with respect to the coupling device. For instance, anchor member may have an offset head portion in order to provide normal pivoting of the coupling device when the anchor is attached to bone at an angle.

A linear surgical stapler adapted for applying a plurality of surgical fasteners to body tissue includes an anvil structure and a cartridge housing containing a plurality of surgical fasteners. The cartridge housing and anvil structure are relatively movable between a first spaced apart position and a second position in close approximation with one another. A firing mechanism is associated with the cartridge housing for ejecting the surgical fasteners from the cartridge housing to be driven against the anvil structure. A lockout mechanism interacts with the cartridge housing for selective activation and deactivation. The lockout mechanism includes a swing gate tab secured to the cartridge housing at a position adjacent a lockout lever, such that firing of the linear surgical stapler rotates the swing gate tab releasing the lockout lever for preventing further firing of the used cartridge housing.

Apparatuses and methods are disclosed for performing a procedure on a heart valve in which a loop of material (160) is configured to contact at least a portion of the annulus or the leaflets of a valve. A plurality of anchors (16) are distributed about the loop and configured for implantation into the annulus or the leaflets in a forward direction. The anchors are configured to resist extraction in a backwards direction. A plurality of linking members (150) are affixed to the loop of material and at least a portion of each linking member passes through a slot (17) in a respective anchor so that the linking members can slide with respect to the slots. The anchors are then implanted into the annulus or the leaflets. The loop can then be used to retain a replacement valve or to cinch the annulus. A number of particularly advantageous anchor configurations are also disclosed.

An endoluminal prosthesis includes a tubular graft, an expandable annular support structure and a restraining mechanism restraining the prosthesis in a collapsed configuration in which the annular support structure is compressed to a low profile. The restraining mechanism holds the annular support structures in the collapsed configuration until the prosthesis is positioned for deployment. The restraining mechanism is then released to allow the annular support structures to expand into conforming engagement with the inner wall of a lumen in which the prosthesis is to be deployed. A feature according to the invention provides a balloon catheter onto which the prosthesis is loaded for deployment where the balloon is expanded to provide a radial force to release the restraining mechanism. Another feature provides for a restraining member that breaks upon application of the radial force to release the annular support structure from its constrained configuration. Another feature of the invention provides for independent and/or sequential release of the annular support members. Various types of annular support members attached to tubular grafts in a variety of manners may be used in accordance with the invention. The invention may be used in tubular grafts for endoluminal placement within a body lumen, including blood vessels, and for the treatment of abdominal and other aneurysms.

A spinal fixation system includes a rod and anchor devices that include a bone engaging fastener having a head defining a spherical socket. A ball insert is placed within the socket and rotated so that the ball insert is juxtaposed with the socket. The anchor device further includes a yoke defining a yoke channel for receiving the rod and a stem engaged to the ball insert captured within the socket. A sleeve disposed between the yoke channel and the fastener head supports the rod. A set screw is operable to clamp the rod against the sleeve and draw the insert into engagement within the socket. A releasable detent defined between the yoke and the fastener head is configured to releasably retain the yoke in at least one discrete position relative to the fastener. Portions of the releasable detent may also exert a frictional retention force against the fastener head.

An improved mechanism for positioning loads of varying magnitudes, such as LCD displays, etc. The position of the load can be varied in height and angle according to the requirements of the user. The mechanism incorporates an adjustable sliding fulcrum, a support arm, a housing with four generally perpendicular channels, and a gas spring. The mechanism is initially manually adjusted for a particular load and then it automatically adjusts proportionally for the varying moments generated as the position of the load changes. The load is therefore evenly counterbalanced throughout its range of motion, and its position is maintained.

An endoluminal prosthesis is provided that includes a tubular graft and an expandable annular support structure. The annular support structure is coupled to the tubular graft so that the graft and support structure, in combination, provide columnar support while maintaining prosthesis flexibility. The prosthesis has sufficient strength and durability to withstand loads applied during deployment and sufficient flexibility to permit implant in a sealing arrangement within a tortuous body lumen. An embodiment according to the invention provides a plurality of annular structures with staggered, longitudinally overlapping apices of undulating structures. One embodiment relates to tubular grafts for endoluminal placement within a body lumen, including blood vessels, and for the treatment of abdominal and other aneurysms.

An implant is placed within Schlemm's canal of the eye and provides tension to the trabecular meshwork. The tension is continuous and increases the aqueous outflow without the necessity of administering cholinergic drugs to treat glaucoma.

An electric power tool includes a housing, a brushless motor, an output shaft, and a motor driver circuit. The housing defines an axial direction. The brushless motor is accommodated in the housing and having a drive shaft. The output shaft extends in a direction generally perpendicular to the drive shaft. The motor driver circuit is accommodated in the housing for driving the brushless motor. The housing has a cylindrical shape and has a part functioning as a grip portion.

A system for removing undesirable material from vessels and from chambers within the heart is provided. The system includes a suction cannula for removing the undesirable material from a site of interest within a patient. A filter device may be provided for capturing the undesirable material and removing it from the fluid flow. The system also includes pump for generating the necessary suction force through the suction cannula to dislodge the undesirable material from the site of interest and for generating a sufficient driving force to direct the fluid flow downstream within the system. The system further includes a reinfusion cannula for introducing fluid removed from the site of interest back into a patient. A method for removing undesirable material from vessels and from heart chambers is also provided.