1. A pressure and shear force measurement device, comprising:
a flexible substrate;
a plurality of signal outputting units disposed in the flexible substrate for outputting signals;
a plurality of signal detectors disposed at a periphery of the flexible substrate for receiving at least a signal outputted from the signal outputting units, wherein when the flexible substrate has a load applied thereon and each of the signal outputting units relative to the signal detectors has a displacement, each of the signal detectors detects a pressure and a shear force resulting from the load on the flexible substrate based on a strength or an orientation of the signal received from the signal outputting units, and the signal outputting units are radiators for absorbing a light from a light source to radiate a light signal to the signal detectors;
a filter disposed between the radiators and the signal detectors for reflecting the light to the radiators and transmitting the light signal radiated by the radiator to the signal detectors; and
a collimator disposed between the light source and the filter for correcting an optical path between the light source and the filter.
2. The pressure and shear force measurement device of claim 1, wherein the plurality of signal detectors detect a distribution of the pressure and the shear force resulting from the load on the flexible substrate.
3. A pressure and shear force measurement method, comprising steps of:
(1) disposing in a flexible substrate a plurality of signal outputting units for outputting signals, disposing a plurality of signal detectors at a periphery of the flexible substrate, disposing a filter between radiators and the signal detectors for reflecting a light to the radiators and transmitting a light signal radiated by the radiator to the signal detectors, and disposing a collimator between a light source and the filter for correcting an optical path between the light source and the filter, wherein the signal outputting units are the radiators for absorbing the light from the light source to radiate the light signal to the signal detectors;
(2) producing a displacement of each of the signal outputting units relative to the signal detectors when the flexible substrate has a load applied thereon; and
(3) receiving a strength or an orientation of signals outputted from the signal outputting units by the plurality of signal detectors, and detecting a pressure and a shear force resulting from the load on the flexible substrate based on the signal received by the signal outputting units.
4. The pressure and shear force measurement method of claim 3, wherein the step (3) further comprises detecting the pressure and the shear force resulting from the load on the flexible substrate based on the signal received from the radiators.
5. The pressure and shear force measurement method of claim 3, wherein the step (3) further comprises detecting a distribution of the pressure and the shear force resulting from the load on the flexible substrate based on the signal received by the signal outputting units.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A rapid-exchange catheter, comprising:
an inner tubular member, having a proximal end, a distal end, and a guide wire lumen extending from a proximal guide wire opening disposed distal of the proximal end at the inner tubular member to a distal guide wire opening disposed at the distal end of the inner tubular member;
an guide wire sleeve disposed about at least a portion of the inner tubular member, having a proximal end, a distal end, and a guide wire opening disposed within the guide wire sleeve the guide wire opening distal of the proximal end of the guide wire sleeve, wherein the guide wire opening within the guide wire sleeve further comprises a guide wire ramp extending into the proximal guide wire opening of the inner tubular member.
2. The rapid-exchange catheter of claim 1, wherein the guide wire ramp is an integral extension of the guide wire sleeve.
3. The rapid-exchange catheter of claim 1, wherein the guide wire sleeve is a unitary construction.
4. The rapid-exchange claim catheter of claim 1, wherein the guide wire sleeve and guide wire ramp is a unitary construction.
5. The rapid-exchange catheter of claim 1, wherein at least a portion of the inner tubular member is slidably disposed within at least a portion of the guide wire sleeve.
6. The rapid-exchange catheter of claim 5, wherein the proximal guide wire opening of the inner tabular member has a length, wherein the guide wire ramp is translated along the length of the proximal guide wire opening of the inner tubular member during translation of the guide wire sleeve relative to the inner tubular member from a first position to a second position.
7. The rapid-exchange catheter of claim 1, wherein the proximal guide wire opening of the inner tubular member is larger than the guide wire opening of the guide wire sleeve.