9959results about How to "Avoid displacement" patented technology

A valve prosthesis for implantation in the body by use of a catheter includes a stent made from an expandable cylinder-shaped thread structure including several spaced apices. The elastically collapsible valve is mounted on the stent as the commissural points of the valve are secured to the projecting apices. The valve prosthesis can be compressed around balloons of the balloon catheter and inserted in a channel, for instance, in the aorta. When the valve prosthesis is placed correctly, the balloons are inflated to expand the stent and wedge it against the wall of the aorta. The balloons are provided with beads to ensure a steady fastening of the valve prosthesis on the balloons during insertion and expansion. The valve prosthesis and the balloon catheter make it possible to insert a cardiac valve prosthesis without a surgical operation involving opening the thoracic cavity.

Floor panels (1, 1′, 1″) are shown, which are provided with a mechanical locking system on long and short edges (5a, 5b, 4a, 4b) allowing installation with vertical folding and where the long edge (5a, 5b) locking system prevents separation of the short edges (4a, 4b) during the folding action.

A device for the location and catheterization of the surrounding area of a nerve of a human or animal body, including a catheter and an electrically conducting puncture needle with proximal and distal ends, which puncture needle forms a continuous lumen with its proximal and distal end open and having an inside diameter which at least corresponds to the outside diameter of the catheter and which, in the region of its proximal end, is equipped with an electrical connecting part for the connection of the puncture needle to an electrical voltage source. At the proximal end, a connecting element with a through-hole communicating with the lumen is provided, onto which an injection tube for the introduction of a liquid through the through-hole into the lumen of the puncture needle is connected, and through the through-hole of which the catheter can be pushed forward into the lumen of the puncture needle all the way to the distal end thereof. Also disclosed is a method for the location and catheterization of the surrounding area of a nerve using such a device.

A combined electrical and chemical stimulation lead is especially adapted for providing treatment to the spine and nervous system. The stimulation lead includes electrodes that may be selectively positioned along various portions of the stimulation lead in order to precisely direct electrical energy to ablate or electrically stimulate the target tissue. Embodiments of the stimulation lead include single or multiple lead elements. The multiple lead element embodiments can be selectively deployed to cover a targeted area. The lead may also includes central infusion passageway(s) or lumen(s) that communicates with various infusion ports spaced at selected locations along the lead to thereby direct the infusion of nutrients/chemicals to the target tissue. Some embodiments utilize a disposable sheath in combination with a reusable stimulation lead.

A lancing device and a removable and replaceable multi-lancet cartridge for use in connection therewith are disclosed. The multi-lancet cartridge is advanced through sequential lancets, and anti-reverse features prevent reverse advancement of the cartridge. Interlocks are provided to prevent double-cocking the device, to reduce the likelihood of jamming of the mechanism. Improved trigger mechanisms and depth control mechanisms are provided.

The present invention provides methods and devices for grasping, and optional repositioning and fixation of the valve leaflets to treat cardiac valve regurgitation, particularly mitral valve regurgitation. Such grasping will typically be atraumatic providing a number of benefits. For example, atraumatic grasping may allow repositioning of the devices relative to the leaflets and repositioning of the leaflets themselves without damage to the leaflets. However, in some cases it may be necessary or desired to include grasping which pierces or otherwise permanently affects the leaflets. In some of these cases, the grasping step includes fixation.

The present invention is a handle for controlling the deflection of a distal end of a catheter body. The catheter body includes first and second deflection wires that extend through the catheter body from the distal end of the catheter body. The handle comprises a slide base, an adjustment knob, a first slide and a second slide. The slide base includes a first end, a second end, and a slide compartment longitudinally extending through at least a portion of the slide base. The adjustment knob is rotateably connected to the first end of the slide base and includes a hole extending through the knob, wherein at least a portion of an inner diameter of the hole includes an internal right thread and an internal left thread. The first slide is located in the slide compartment, is adapted to be coupled to the first deflection wire, and includes an external right thread. The second slide is located in the slide compartment, is adapted to be coupled to the second deflection wire, and includes an external left thread. The internal threads of the knob engage the threads of the slides. Consequently, in operation, rotation of the adjustment knob causes the slides to displace in opposite directions within the slide compartment and the distal end of the catheter body to deflect accordingly.

A composition of enzyme, polymer, and crosslinker forms a network of covalently bound macromolecules. The covalently immobilized enzyme preparation has enzymatic activity, and retains stable activity when dried and stored at ambient conditions. Methods for preparing an immobilized enzyme and methods for using the enzyme are disclosed.

The invention is directed to a delivery system for delivering a medical device. The delivery system includes an inner member having a proximal end and a distal end. The inner member defines a longitudinal axis between the proximal end and the distal end. A tip is formed at the distal end of the inner member. A bumper is freely disposed on the inner member. The bumper has a proximal end and a distal end. A seat is defined between the tip and the distal end of the bumper. Additionally, a sheath is disposed about the inner member, the sheath having a proximal end and a distal end. The sheath is movable from a first sheath position substantially covering the seat, and a second sheath position axially offset to expose the seat. The invention also includes a handle in contact with the proximal end of the inner member.

An apparatus and method for a centrifugal fluid pump for pumping sensitive biological fluids, which includes (i) an integral impeller and rotor which is entirely supported by an integral combination of permanent magnets and electromagnetic bearings and rotated by an integral motor, (ii) a pump housing and arcuate passages for fluid flow and containment, (iii) a brushless driving motor embedded and integral with the pump housing, (iv) a power supply, and (v) specific electronic sensing of impeller position, velocity or acceleration using a self-sensing method and physiological control algorithm for motor speed and pump performance based upon input from the electromagnetic bearing currents and motor back emf-all fitly joined together to provide efficient, durable and low maintenance pump operation. A specially designed impeller and pump housing provide the mechanism for transport and delivery of fluid through the pump to a pump output port with reduced fluid turbulence.

A surgical clip includes a pair of opposed arms joined at one end by an integrally formed flexible hinge and a hinge lock. A male locking pin near the free end of one arm is configured to penetrate tissue when the male locking pin is urged towards a mating female aperture near the end of the opposite arm. The clamping side of an arm may include a protruding feature, such as a wedge shape elongated ridge, while the clamping side of the opposite arm includes a corresponding trough or aperture that receives the protruding feature. Clamping surfaces may include non-slip protrusions, such as ribs, ridges, cones or pins. An applicator holding feature, such as a boss, near the hinge prevents the clip from yawing and becoming askew during application.

A system for fixing accessories, such as shelf dividers, feed devices, holders for information carriers etc. to a shelf, to which self a number of accessories may be fixed detachably in various different positions along the length of the shelf. The system includes at least one accessory provided with a foot, and a clamping device, which includes a channel element, extending in parallel with the longitudinal direction of the shelf and presenting an open longitudinal side for forming an open channel, a actuable holding member, extending along the channel element for holding at least one foot in the channel and a control member for transferring the holding member between a holding position, in which the foot is held in a fixation position in the channel and a release position at which the foot is freed.

An endovascular graft which is configured to conform to the morphology of the vessel to be treated and which is made from an inflatable structure having a proximal end with a proximal inflatable cuff and a distal end with a distal inflatable cuff. At least one elongated inflatable channel is disposed between and in fluid communication with fluid tight chambers of the inflatable cuffs which may contain rupture discs therebetween which can be configured to rupture at different pressures. A thin flexible barrier disposed between the inflatable cuffs and the elongated inflatable channel of the frame so as to form a tubular structure defining a longitudinal channel to confine a flow of blood or other fluid therethrough. The graft may also have an expansion member attached to the proximal end of the graft which is preferably made of linked expandable rings of pseudoelastic shape memory alloy which is self expanding and prevents axial displacement of the graft once it is deployed.

Devices and methods for stabilizing a lead in a cardiac vein.

A display device including a camera is used by inserting it in the direction of a user's gaze. Alternatively, an image of the same area as that of a scene from a windshield of an automobile may be obtained and the image may be displayed by using an information providing apparatus installed in the automobile. A system provides information to the user by adding a two-dimensional or three-dimensional computer graphics object to an image taken by the camera. The information is directly added to a scene in the direction of the user's gaze and is displayed to the user. Thus the user can easily understand the relationship between the information and the position to which the information is added.

A vehicle front body structure includes a pair of front side frames each of which has, at a rear portion thereof, an easily deformable portion that is easily deformable during a collision, a support frame for mounting a unit box thereon, which has a pair of rear legs that are fixed to the easily deformable portions of the pair of front side frames, and a pair of front legs that are fixed to portions of the pair of front side frames, the portions being located in the front as viewed from the easily deformable portions. Displacement allowing spaces for allowing displacement of the unit box during a collision are provided near side portions of the unit box adjacent to the rear legs.

The invention provides a coiled tubing clamping device and an injection head using the same, belonging to the field of oil production and drilling equipment. The clamping device includes a saddle-type clamping block and a clamping block seat, wherein the saddle-type clamping block is connected to the clamping block seat. The clamping device is characterized in that two sides of the saddle-type clamping block are provided with tongue-like platforms, the tongue-like platform is provided with an opening hole, the back part of the saddle-type clamping block is provided with a recess, two sides of the clamping block seat are respectively provided with a pair of bosses, the recess of the saddle-type clamping block is inserted into a slot formed by the clamping block seat bosses, a running clearance is left between the recess and the slot, and the clamping block seat is provided with a positioning screw for limiting the position of the saddle-type clamping block. The injection head comprises an oil pipe clamping mechanism and a transmission chain, wherein the oil pipe clamping mechanism is mounted on the transmission chain through two hinge pin holes on the clamping block seat. The technical proposal has the advantages that the abrasion of the oil pipe can be effectively reduced, the clamping device has operational reliability, and the clamping blocks are convenient in replacement.

A switch device for assembly with a fastener securing an access cover to a high voltage storage device includes a switch connector device connectable to a shroud. The switch connector includes a flange with a bolt hole through which a fastener passes and a first connector having a shorting bar. The shroud includes a second connector with first and second wire cables, mateable to the first connector. The switch device has open and closed positions. In closed position, the shroud is mated to the switch connector device, and conducts electrical signals between the first and second wire cables. The shroud substantially completely obstructs operative access to the fastener. In open position, the shroud is sufficiently unmated from the switch connector device to permit operative tool access to the fastener. The first connector is disconnected from the second connector when in the open position.

A medical device is provided comprising a cannula (771, 861) having a distal end portion adapted to be arranged through the skin of the subject and having a distal opening, and a needle (761, 861) arranged coaxially with and being axially moveable relative to the cannula, the needle comprising a pointed distal end, wherein the device is adapted for advancing the cannula with the distal end of the needle projecting there from through the dermis of the subject, and further advancing the cannula into the subcutis of the subject with the distal end of the cannula projecting relative to the needle.

An organizer (100) for fiber cable management comprises a generally planar base (105) having a splitter holding section (110), a slack and unterminated fiber storage section (120), and a splice and splice tray holding section (150). The splitter holding section (110) is configured to optionally hold one or more fiber splitters. The slack and unterminated fiber storage section includes a slack storage region (130) having a plurality of fiber routing structures (146a, 146b) to support and retain slack fiber and an unterminated fiber storage region having one or more spool type structures (142) to support and retain unterminated fiber separate from the slack fiber. The splice and splice tray holding section is configured to optionally hold one of a first fiber splice insert (160) and a splice tray holder (170) configured to engage one or more splice trays. A distribution box (200) for distributing optical fibers for communications includes a base, a cover, and the organizer described above.