摘要:
A medical device for insertion and expansion within a bifurcated lumen is described. An expansion region of the device has regions thereon which, in some cases, enable the device to fold into a predetermined configuration upon deflation. The regions may be defined by differing modulus of the device material.
摘要:
Medical device balloons are formed from a tubular parison by a process or apparatus which establishes a controlled location (initiation zone) on the parison where radial expansion is initiated. Initiation within the initiation zone is achieved by heating the parison in that location to a higher temperature than the remainder of the parison for at least a portion of the blowing time. A variety of apparatus configurations are provided, some of which allow for the size and location of the initiation zone to be readily reconfigured. Balloons can also be modified, post-blowing, using heating apparatus and methods described.
摘要:
The present invention is directed to distal tip designs for catheter, wherein distal tip material is positioned about an inner shaft. The distal tip material may also be used as a tie layer for thermally bonding two incompatible materials together, such as a waist portion of a balloon to the inner shaft.
摘要:
There is provided a method of monitoring one or more specified reactions in a fluid medium sample using a thermal signature, comprising providing at least one micro-cantilever sensor, said micro-cantilever sensor comprising at least two materials having different coefficients of thermal expansion, and having a heater and piezo-resistive sensor integrated therein, calibrating the at least one micro-cantilever response to thermal changes to form a calibrated micro-cantilever response characteristic, starting the specified reaction in the fluid medium sample, pulsing the heater with one or more electrical pulses to induce heat generation in the micro-cantilever, sampling the output of the integrated piezo-resistive sensor to characterize a response of the micro-cantilever during the specified reaction in the fluid medium, and subtracting the calibrated micro-cantilever response characteristic from the sampled output to determine a characteristic of the one or more specified reactions in the fluid medium sample. There is also provided a method for measuring at least one thermal property of a fluid medium sample, and a fluid medium sample reaction detection apparatus.
摘要:
Loading apparatus 10 for loading material 20 into a container 22 includes a charging receptacle 12. The charging receptacle 12 defines a materials receiving space 14 in which material 20 is receivable in use. The apparatus 10 includes material moving means 24, 26 for moving the material 20 out of the material receiving space 14.
摘要:
Balloon systems for treating bifurcated lumens include desirable burst and folding characteristics. In some cases, the balloon systems can be formed by varying the wall thickness of a balloon parison.
摘要:
Medical device balloons are formed from a tubular parison by a process or apparatus which establishes a controlled location (initiation zone) on the parison where radial expansion is initiated. Initiation within the initiation zone is achieved by heating the parison in that location to a higher temperature than the remainder of the parison for at least a portion of the blowing time. A variety of apparatus configurations are provided, some of which allow for the size and location of the initiation zone to be readily reconfigured. Balloons can also be modified, post-blowing, using heating apparatus and methods described.
摘要:
An electronic component equipment rack utilizes vertically extending adjustable rails to support electronic components therein. The vertically extending rails are configured to allow a power distribution unit to be attached thereto. The dimensions of the vertically extending rails allow the power distribution unit to be disposed between the attached vertically extending rail and an associated adjacent opposed side of the rack. The vertically extending rails can be Z-shaped with front and rear flanges and a side panel extending therebetween. The power distribution unit can be attached to the rear flange and be adjacent the rear flange and the side panel. The power distribution unit can be flush with the front flange. The rack and the opening between opposing vertically extending rails can conform to the EIA3 10-D standard.
摘要:
The present invention is directed to distal tip designs for catheter, wherein distal tip material is positioned about an inner shaft. The distal tip material may also be used as a tie layer for thermally bonding two incompatible materials together, such as a waist portion of a balloon to the inner shaft.
摘要:
The present invention is directed to a flowable composition that is suitable for use as a controlled release implant. The flowable composition includes a biodegradable thermoplastic polyester that is at least substantially insoluble in aqueous medium or body fluid. The flowable composition also includes a biocompatible polar aprotic solvent. The biocompatible polar aprotic solvent is miscible to dispersible in aqueous medium or body fluid. The flowable composition also includes leuprolide acetate.