摘要:
Apparatus and methods for delivering prosthetic segments to a body lumen, utilize a device having an elongated flexible member including proximal and distal ends, a plurality of prosthetic segments releasably arranged axially along the elongated flexible member near the distal end and an outer sheath slidably disposed over at least a portion of the prosthetic segments. The apparatus further includes a separator disposed on the outer sheath and adapted to engage the prosthetic segments. The separator is also adapted to be retracted proximally over the prosthetic segments and advanced distally to separate a proximal group of the prosthetic segments from a distal group of the prosthetic segments which are to be deployed in the body lumen.
摘要:
Apparatus and methods for delivering prosthetic segments to a body lumen, utilize a device having an elongated flexible member including proximal and distal ends, a plurality of prosthetic segments releasably arranged axially along the elongated flexible member near the distal end and an outer sheath slidably disposed over at least a portion of the prosthetic segments. The apparatus further includes a separator disposed on the outer sheath and adapted to engage the prosthetic segments. The separator is also adapted to be retracted proximally over the prosthetic segments and advanced distally to separate a proximal group of the prosthetic segments from a distal group of the prosthetic segments which are to be deployed in the body lumen.
摘要:
Apparatus and methods for delivering prosthetic segments to a body lumen, utilize a device having an elongated flexible member including proximal and distal ends, a plurality of prosthetic segments releasably arranged axially along the elongated flexible member near the distal end and an outer sheath slidably disposed over at least a portion of the prosthetic segments. The apparatus further includes a separator disposed on the outer sheath and adapted to engage the prosthetic segments. The separator is also adapted to be retracted proximally over the prosthetic segments and advanced distally to separate a proximal group of the prosthetic segments from a distal group of the prosthetic segments which are to be deployed in the body lumen.
摘要:
Apparatus and methods for delivering prosthetic segments to a body lumen, utilize a device having an elongated flexible member including proximal and distal ends, a plurality of prosthetic segments releasably arranged axially along the elongated flexible member near the distal end and an outer sheath slidably disposed over at least a portion of the prosthetic segments. The apparatus further includes a separator disposed on the outer sheath and adapted to engage the prosthetic segments. The separator is also adapted to be retracted proximally over the prosthetic segments and advanced distally to separate a proximal group of the prosthetic segments from a distal group of the prosthetic segments which are to be deployed in the body lumen.
摘要:
Apparatus and methods for delivering prosthetic segments to a body lumen include an elongated flexible member having both proximal and distal ends along with a plurality of prosthetic segments releasably arranged axially along the elongated flexible member near the distal end. Additionally, the apparatus has a sheath slidably disposed over at least a portion of the prosthetic segments and an outer shaft slidably disposed over at least a portion of the sheath. A separator is disposed on the outer shaft and is biased into engagement with at least one prosthetic segment so that the outer shaft may be retracted to separate a proximal group of prosthetic segments from a distal group of prosthetic segments which are to be deployed into the body lumen. The sheath is positionable between the separator and the prosthetic segments to selectively disengage the separator from the prosthetic segments.
摘要:
A therapeutic device to release a therapeutic agent comprises a porous structure coupled to a container comprising a reservoir. The reservoir comprises a volume sized to release therapeutic amounts of the therapeutic agent for an extended time when coupled to the porous structure and implanted in the patient. The porous structure may comprise a first side coupled to the reservoir and a second side to couple to the patient to release the therapeutic agent. A plurality of interconnecting channels can extend from the first side to the second side so as to connect a first a plurality of openings on the first side with a second plurality of openings on the second side. Each of the openings on the first side can be connected to each of the openings on the second side with the plurality of interconnecting channels, such that the rate of release of the therapeutic agent can be substantially maintained when one or more of the openings is blocked, for example with particles, cells, bacteria or tissue when the device is implanted for an extended time. The length of the channels extending from the first side to the second side may comprise an effective length greater than a distance across the porous structure from the first side to the second side. The therapeutic device many comprise an expandable retention structure and an expandable reservoir, such that the device can be delivered from a lumen of a delivery device and expand when positioned in the patient. The therapeutic device may comprises a penetrable barrier to inject therapeutic agent into the device when implanted in the patient.
摘要:
The present invention provides a waste for an item of sanitary ware generating grey water, the waste comprising: (i) an inlet for admitting grey water; (ii) first and second outlets configured to discharge grey water, the first outlet being arranged to connect to a drainage system, and the second outlet being arranged to connect to a recycling system; (iii) a valve configured to selectively direct water to the first outlet or the second outlet, the valve being located between the inlet and the first and the second outlets, wherein the valve is operable between the first and the second positions, the valve connecting the inlet to the first outlet in the first position and the valve connecting the inlet to the second outlet in the second position; and (iv) a plug dimensioned to fit the inlet and configured to operate the valve by manipulation of the plug.
摘要:
An apparatus and method for unilaterally loading a secure operating system within a multiprocessor environment are described. The method includes disregarding a received load secure region instruction when a currently active load secure region operation is detected. Otherwise, a memory protection element is directed, in response to the received load secure region instruction, to form a secure memory environment. Once directed, unauthorized read/write access to one or more protected memory regions are prohibited. Finally, a cryptographic hash value of the one or more protected memory regions is stored within a digest information repository as a secure software identification value. Once stored, outside agents may request access to a digitally signed software identification value to establish security verification of secure software within the secure memory environment.
摘要:
An apparatus for deploying a needle within a lumen is provided. The apparatus includes a housing having a threaded bushing radially disposed therein. The bushing rigidly couples with a nose cone having a guide tip disposed at an end opposite the bushing for penetrating an arterial wall of a lumen. During operation, a user incrementally advances the bushing within the housing, thereby incrementally advancing the guide tip into the lumen. The nose cone also includes a flex guide having a slot configuration which couples with the guide tip which deploys into the lumen along with the guide tip.
摘要:
The present invention provides methods for operating data loggers and in particular, software techniques useful for controlling the critical functions of a low-power-battery-operated data logger. One method initializes various memory locations upon a detection of new firmware. Another method allows a processor system belonging to a data logger to receive a high baud rate data stream while being operated in a sleep mode. Yet another method provides a highly efficient process for estimating the remaining battery capacity of a data logger's primary power source. Finally, a method is provided for protecting volatile variables during a disruption of primary power. The protected variables are written to non-volatile memory using parasitic power only.