摘要:
Apparatus and methods are described including a trocar (40) that defines a lumen therethrough, configured to provide a passage through skin of a subject into a body of the subject. A cannula (60) is configured to be placed into the subject's body via the passage provided by the trocar, the cannula being configured to be slidable with respect to the trocar. The cannula includes an outer tube (64) having a first expandable element (77) disposed at a distal end thereof, and an inner tube (62) having a second expandable element (72) disposed at a distal end thereof, the inner tube being configured to be slidable with respect to the outer tube. A vacuum port (61) applies vacuum pressure to the first expandable element via a space (65) between the inner and outer tubes of the cannula. Other applications are also described.
摘要:
The present invention is a method and device, which is suitable for use in an operating theater just prior to implantation, for selectively applying a medical coating to an implantable medical device, for example a stent. Disclosed is a device for use with a stent deployed on a catheter balloon. The device is configured to apply a medical coating of a desired thickness to the surface of a stent only. This is done by use of a drop-on-demand inkjet printing system in association with an optical scanning device. The device is further configured so as to, if necessary, apply a plurality of layered coats, each layered coat being of a different coating material, and if appropriate, different thickness. The section of the housing in which the stent is held during the coating procedure is detachable from the housing base. The detachable housing section may be easily cleaned and re-sterilized or simply disposed or simply disposed of.
摘要:
A method for automated cell processing is provided, including receiving at least one tissue containing a multiplicity of cells belonging to multiple cell types, and automatically increasing both the proportion of cells of at least one of said multiple cell types as compared with at least another of said multiple cell types and the absolute number of cells of said at least one of said multiple cell types. Other embodiments are also described.
摘要:
A method and apparatus for controlling coating material deposition on to a medical device. Images of material drops in flight are captured and an average single drop volume value is calculated by conversion of the captured drop images to a volume measurement. The average single drop volume value is used to calculate a total number of drops necessary to apply a desired amount of coating. Alternately, material is applied and the amount of material deposited is accumulated and adjustments are made to deposit only a desired amount of coating material. A drop volume is determined for either every drop or a sampling of drops as the drops are being applied. Adjustments to the coating process include changing drop size and changing a number of drops to be deposited.
摘要:
The present invention is a method and device, which is suitable for use in an operating theater just prior to implantation, for selectively applying a medical coating to an implantable medical device, for example a stent. Disclosed is a device for use with a stent deployed on a catheter balloon. The device is configured to apply a medical coating of a desired thickness to the surface of a stent only. This is done by use of a drop-on-demand inkjet printing system in association with an optical scanning device. The device is further configured so as to, if necessary, apply a plurality of layered coats, each layered coat being of a different coating material, and if appropriate, different thickness. The section of the housing in which the stent is held during the coating procedure is detachable from the housing base. The detachable housing section may be easily cleaned and re-sterilized or simply disposed or simply disposed of.
摘要:
A method an apparatus for coating prostheses via contact patterning with an applicator. Applicators can include rollers, tampons, and ribbons. Coating materials include a variety of substances including polymers and therapeutic agents.
摘要:
A system for continuously processing successive workpieces along a production line having a loader for loading workpieces onto main conveyor for conveying through a workstation and an unloader for unloading a processed workpiece. The loading and unloading are achieved without disturbing the main conveyor during operation of the workstation so as not to vibrate the workpiece during operation of the workstation. According to one embodiment, the workpiece is a printed circuit board and the workstation is an optical inspecting system.
摘要:
A system for closure of a vascular access site and a device for closure are provided. The system includes a radially expandable device sized and configured for positioning within a blood vessel and a delivery catheter. The catheter is designed for delivering the radially expandable device through the vascular access site and expanding the radially expandable device in a position that spans the vascular access site, thereby at least partially closing the vascular access site.
摘要:
A tissue access site system is provided. In one embodiments, the system includes a tissue cutting element designed for generating a tissue access site through a tissue, the tissue access site being surrounded by tissue edge portions of a predetermined geometry; and a tissue closure device being for attaching at least one closure element to the tissue at a region corresponding to at least one of the tissue edge portions.
摘要:
A method and apparatus for controlling coating material deposition on to a medical device. Images of material drops in flight are captured and an average single drop volume value is calculated by conversion of the captured drop images to a volume measurement. The average single drop volume value is used to calculate a total number of drops necessary to apply a desired amount of coating. Alternately, material is applied and the amount of material deposited is accumulated and adjustments are made to deposit only a desired amount of coating material. A drop volume is determined for either every drop or a sampling of drops as the drops are being applied. Adjustments to the coating process include changing drop size and changing a number of drops to be deposited.