摘要:
A method for performing transmyocardial revascularization (TMR) comprises the steps of creating an incision in an outer portion of heart tissue of a patient and creating a channel in the patient's myocardium through the incision by advancing a channel creating device into the myocardium beyond the depth of the incision to remove myocardial tissue without removing all outer portion heart tissue coinciding with the channel. As a result, the remaining outer portion tissue acts as a cap to reduce bleeding from the channel subsequent to removal of the channel creating device. The cap may be in the form of an annular flap of myocardial/epicardial tissue. The channel creating device used to create the channel with the method can be either a mechanical coring device or an advancing lasing device.
摘要:
A suture anchor installation system includes a suture anchor, a loading unit, and a suture anchor installation tool. The suture anchor includes an elongated setting pin at least partially mounted within a longitudinal bore of a socket and slidably movable between a distal first position wherein at least a portion of the setting pin is distal to the socket and a proximal second position, the socket having at least two proximally pointing legs which are radially expandable in response to movement of the setting pin to the proximal second position. The loading unit includes a housing and a collet movably mounted within an axial bore in the housing, the collet having arms for releasably gripping the suture anchor. The suture anchor inserter has a first tubular member for engaging the collet, and a second tubular member for releasably engaging the socket of the suture anchor.
摘要:
Security devices which are difficult to reproduce include a grid screen metallization pattern. The grid screen metallization pattern may be laid down over a hologram or diffraction grating formed as a surface relief pattern on a substrate, to form a visually identifiable, semi-transparent security device. Additionally, the metallization pattern may include resonant structures in which information about the security device is encoded. In some embodiments of these security devices, the metallization pattern is disposed in accurate registration with the underlying hologram or diffraction grating. These security devices are made by methods which include printing an oil pattern on the substrate. Areas on which oil is deposited do not receive metal during a metallization step. Since these methods do not use caustics, metallization patterns including features which would otherwise trap and hold caustics are possible.
摘要:
A system for suture anchor placement includes an apparatus having a handle portion and an operating portion. The handle portion includes a spring, a needle park, and a member for releasably holding a length of the suture. The operating portion includes a sheath tube and a plunger rod slidably disposed within the bore of the sheath tube. The plunger rod is fixedly mounted at its proximal end to the handle. The suture anchor is releasably engaged to the distal end portion of the plunger rod. The sheath tube is mounted to the handle and movable with respect to the handle between a distal position and a proximal position, the sheath tube being resiliently biased to the distal position by the spring and movable to the proximal position in response to proximally directed force of sufficient magnitude applied to the distal end of the sheath tube. The sheath tube has a portion with an outer diameter greater than the diameter of the hole in the bone such that when the installation tool is pressed toward the bone, the sheath tube retracts into the handle and the suture anchor is advanced into a hole previously made in the bone. The suture, initially held in a taut configuration, is released in response to movement of the sheath tube to its proximal position.
摘要:
A cassette chamber according to the present invention comprises a housing defining a space stored with a cassette for holding a plurality of objects of treatment, a lift base having a rotatable shaft and located in the housing for up-and-down motion, an auxiliary base fixed to the shaft and inclined at a predetermined angle to the longitudinal direction of the shaf, a cassette support having a bottom support portion set on the lift base and bearing the bottom face of the cassette and a back support portion rotatably supported by the auxiliary base and bearing the back face of the cassette, a rotation mechanism for rotating the shaft as the lift base ascends or descends, thereby rotating the auxiliary base and the cassette support between a first position inside the housing and a second position outside the housing, and a support section for keeping the back support portion of the cassette support parallel to the shaft by engaging the back support portion being rotated to the second position by the rotation mechanism and causing the back support portion to rotate relatively to the auxiliary base.
摘要:
A dispenser box (10) for suture packages (50) includes an outer casing (100) and drawer portion (200) slidably disposed within the outer casing. The dispenser preferably includes at least two access portals for withdrawal of the suture packages. A first access portal (14) allows the suture packages to be withdrawn in accordance with the U.S. preferred mode, wherein the dispenser box disposed so that the suture packages are stacked in a vertical array and withdrawn horizontally. A second access portal (15) allows the suture packages to be withdrawn in accordance with the European preferred mode, wherein the suture packages are stacked in a horizontal array and are withdrawn vertically.
摘要:
A surgical instrument for anastomosis of first and second blood vessels is provided having a handle and a body portion extending distally from the handle. A collet is mounted adjacent a distal end portion of the body portion and defines a passage therethrough for the reception of an end of a first blood vessel. A plurality of surgical fasteners are releasably supported by the collet and radially oriented about the distal end thereof. An anvil is mounted adjacent of the collet. The anvil and collet are relatively slidable in response to actuation of the handle to simultaneously deform then release the surgical fasteners.