Radiotherapy template assembly
Inventors
Magen, Ofer • Dana, Niv • Tal, Sagy • Gat, Amnon • Den, Robert
Assignees
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Publication Number
US-11872409-B2
Publication Date
2024-01-16
Expiration Date
Abstract
A template assembly including a first grid (22) for placement on a first side of a body organ, defining a plurality of apertures (329) adapted to receive elongate applicators (410), a second grid (24) for placement on a second side of a body organ, defining a plurality of apertures (34), adapted to receive applicators passing through apertures of the first grid and the body organ and at least one frame (26) defining a large hole (72), positioned between the first and second grids and configured to grasp the body organ.
Core Innovation
The invention relates to a template assembly for radiotherapy, including brachytherapy, that positions a first grid on a first side of a body organ and a second grid on a second side of the body organ. The first grid defines a first plurality of apertures adapted to receive elongate applicators, and the second grid defines a second plurality of apertures adapted to receive applicators passing through the first plurality of apertures of the first grid and the body organ. The apertures are aligned so that applicators pass through the organ in coordination with the grids.
Between the first and second grids, the template assembly includes at least one closed frame defining an internal large hole. The internal large hole is positioned such that applicators passing through the first plurality of apertures and the body organ also pass through the internal large hole. The at least one closed frame is configured to grasp the body organ, allowing the template assembly to maintain grasping while accommodating passage of applicators through the large hole.
The template assembly supports physician access while maintaining organ compression by defining a large central hole between the grids through the frame. In some configurations, the frame includes an open frame arrangement, a triangular shape, and is coupled to the grids using bridges, and the grids and frame may be mounted using a bar or other mounting structure. Optional variations include different frame plate arrangements and different positioning and mounting relationships of the frame relative to the bar and grids, while the large hole remains positioned between the first and second grids.
Claims Coverage
The document provides three independent claim sets, each centered on a template assembly with aligned first and second grids receiving elongate applicators on opposite sides of a body organ, and a frame defining a large hole positioned between the grids and configured to grasp the body organ. Across the independent claims, inventive features are introduced through a closed frame with an internal large hole through which applicators pass, a triangular shaped version, and an arrangement where a frame defining the large hole is positioned to grasp the body organ between the frame and one of the grids, with further options for open frames and physician access.
First and second grids for aligned applicator apertures on opposite organ sides
A template assembly comprising a first grid for placement on a first side of a body organ, defining a first plurality of apertures adapted to receive elongate applicators; and a second grid for placement on a second side of the body organ, defining a second plurality of apertures adapted to receive applicators passing through the first plurality of apertures of the first grid and the body organ.
Closed frame defining an internal large hole with applicator passage and organ grasping
At least one closed frame defining an internal large hole positioned between the first and second grids, such that applicators passing through the first plurality of apertures and the body organ also pass through the internal large hole, and wherein the at least one closed frame is configured to grasp the body organ.
Triangular first and second grids and frame
At least one frame defining a large hole, positioned between the first and second grids and configured to grasp the body organ, wherein the first and second grids and the at least one frame have a triangular shape.
Frame defining large hole positioned to grasp between the frame and one grid
A frame defining a large hole, positioned between the first and second grids and configured to grasp the body organ, between the frame and one of the first and second grids.
Open frame
At least one frame is an open frame.
Physician access via frame-defined large hole
The frame-defined large hole permits a physician access to a body organ.
Across the independent claims, the main inventive coverage is the combination of aligned first and second grids with apertures for elongate applicators on opposite sides of the body organ, and a frame between the grids defining a large hole while configured to grasp the body organ. Dependent claim variations further specify closed and open frame configurations, triangular geometry, coupling and mounting structure, and the large hole permitting physician access.
Stated Advantages
Allows physician access to a body organ.
Maintains a grasping configuration of the body organ while defining a large hole positioned between grids for applicator passage.
Documented Applications
Template assembly used for radiotherapy, including brachytherapy, with elongate applicators and brachytherapy seeds.
Using the template to insert seeds and applicators through apertures and through the frame-defined large hole while the frame grasps the body organ and the leading grid is removed for access.
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