Dynamic colorectal PDT application
First Claim
1. A medical device for colorectal PDT treatment comprising;
- a) at least one radiation source;
b) a multichannel dosimetry device;
c) a long pass filter;
d) an applicator having a distal end and a proximal end, being sized and adapted for the distal end to be inserted intra-anally and comprising;
1) a center conduit extending along a longitudinal axis of the applicator,
2) at least one measurement conduit sloped with respect to the center conduit such that the distal end of a probe inserted into the proximal end of the measurement conduit would point away from the distal end of the center conduit, and
3) at least one measurement conduit at the surface of the applicator parallel to the center conduit;
e) at least one waveguide for insertion into the proximal end of the center conduit of the applicator;
f) at least one sloped measurement probe for insertion into the proximal end of the at least one sloped measurement conduit; and
g) at least one surface measurement probe for insertion into the proximal end of the at least one measurement conduit at the surface of the applicator.
3 Assignments
0 Petitions
Accused Products
Abstract
Dynamic colorectal PDT methods, devices and photosensitizer compositions to treat abnormal cell growth in anal tissue such as perianal and intra-anal intraepithelial neoplasia grade III are presented. Dynamic colorectal PDT method comprises the steps of administering topically, intravenously or orally a photosensitizer composition; irradiating; monitoring treatment parameters before, during and/or after irradiation. Photosensitizer composition comprises Temoporfin and excipients/carriers, appropriate for the application method. An applicator is provided for colorectal PDT treatments enhancing irradiation delivery and monitoring treatment parameters. Preferably, applicator is made of a material, used to monitor the fluence rate simultaneously while doing optical spectroscopy. Measurement probe devices are provided for monitoring PDT treatment parameters in-vivo. A device for colorectal PDT treatment is also provided, comprising laser radiation source operating at about 400 and 800 nm; excitation laser radiation source operating at about 650 nm for fluorescence measurements; multichannel dosimetry device; long pass filter; waveguides and measurement probes.
14 Citations
19 Claims
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1. A medical device for colorectal PDT treatment comprising;
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a) at least one radiation source; b) a multichannel dosimetry device; c) a long pass filter; d) an applicator having a distal end and a proximal end, being sized and adapted for the distal end to be inserted intra-anally and comprising;
1) a center conduit extending along a longitudinal axis of the applicator,
2) at least one measurement conduit sloped with respect to the center conduit such that the distal end of a probe inserted into the proximal end of the measurement conduit would point away from the distal end of the center conduit, and
3) at least one measurement conduit at the surface of the applicator parallel to the center conduit;e) at least one waveguide for insertion into the proximal end of the center conduit of the applicator; f) at least one sloped measurement probe for insertion into the proximal end of the at least one sloped measurement conduit; and g) at least one surface measurement probe for insertion into the proximal end of the at least one measurement conduit at the surface of the applicator. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification