EXPANDABLE BRACHYTHERAPY DEVICE
First Claim
1. A method for treating tissue surrounding a body cavity of a patient, comprising:
- a) providing a device having a distal portion, a treatment location at the distal portion of a shaft of the device and a first lumen extending into the treatment location configured to receive a radiation source;
b) inserting the device into the patient until the treatment location is deployed within the body cavity;
c) positioning the treatment location within the body cavity so that the first lumen is closer to a first portion of tissue surrounding the body cavity than a second portion of tissue surrounding the body cavity; and
d) irradiating tissue surrounding the body cavity by a radiation source in the first lumen within the treatment location to asymmetrically irradiate tissue at the body site.
6 Assignments
0 Petitions
Accused Products
Abstract
A method for brachytherapy in a lumpectomy cavity of a breast including, positioning a distal end of a brachytherapy device within the cavity, expanding an expandable surface portion located between proximal and distal ends of the device within the cavity, the source lumen tubes defining a curved configuration within the cavity; and positioning a source of radiation sequentially within one or more source lumens of the source lumen tubes according to a brachytherapy treatment plan. The device includes an inner tube, and a plurality of source lumen tubes located around the inner tube and including distal ends secured together with the inner tube at the distal end disposed within the body cavity, the source lumen tubes comprising proximal portions sufficiently long to extend outside the breast.
-
Citations
27 Claims
-
1. A method for treating tissue surrounding a body cavity of a patient, comprising:
-
a) providing a device having a distal portion, a treatment location at the distal portion of a shaft of the device and a first lumen extending into the treatment location configured to receive a radiation source; b) inserting the device into the patient until the treatment location is deployed within the body cavity; c) positioning the treatment location within the body cavity so that the first lumen is closer to a first portion of tissue surrounding the body cavity than a second portion of tissue surrounding the body cavity; and d) irradiating tissue surrounding the body cavity by a radiation source in the first lumen within the treatment location to asymmetrically irradiate tissue at the body site.
-
-
2. A brachytherapy device for treating tissue surrounding a body cavity within a patient, comprising:
-
a) an elongated shaft having proximal and distal portions and a plurality of lumens extending within the shaft from the proximal portion to the distal portion; b) a plurality of tubular members on the distal shaft portion which have inner lumens in fluid communication with lumens extended within the elongated shaft and are configured to receive a radiation source therein; c) an expandable member on the distal shaft portion surrounding the plurality of tubular members, having contracted and expanded configurations and being spaced from the plurality of tubular members in the expanded configuration; d) a device on the proximal shaft portion having a plurality of tubular members with inner lumens, each of which are aligned with an inner lumen extending within the elongated shaft and which are configured to direct a radiation source to one of the inner lumens extending within the elongated shaft that are aligned therewith. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 19)
-
-
13. A brachytherapy device for treating tissue surrounding a body cavity within a patient, comprising:
-
a) an elongated shaft having a distal shaft portion with a longitudinal axis, a proximal shaft portion and a plurality of lumens extending within the shaft from the proximal portion to the distal portion; and b) a plurality of guides along the distal shaft portion which are in fluid communication with lumens extending within the elongated shaft and which are configured to receive a radiation source therein, with at least one of the guides having an arcuate shape in a longitudinal direction and having an intermediate portion thereof extending away from a longitudinal axis a greater distance than portions of the arcuate shaped guide proximal and distal to the intermediate portion to allow asymmetric radiation. - View Dependent Claims (14, 15, 16, 17, 18, 20, 21, 22, 23, 24, 25, 26, 27)
-
Specification