US 2019/0314643 A1Published application

Delivery system for intensity modulated high dose rate brachytherapy with intermediate energy brachytherapy isotopes

AssigneeThe Royal Institution for the Advancement of Learning/Mcgill University

InventorsShirin Abbasi Nejad ENGER, Gabriel FAMULARI

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Abstract

A delivery system and method for radiation shielded brachytherapy comprises a drive assembly, and a plurality of shield assemblies, pivotally mounted to the drive assembly, each having a tubular body defining an outer surface and a bore longitudinally extending between opposite ends of the tubular body. Each of the shield assemblies comprises radiation shielding material extending about a circumferential portion of the tubular body and disposed between the outer surface and the cavity. An interlocking system is operatively mounted to the rotating assembly, and engages a group of the plurality of shield assemblies. The interlocking system is configured for transmitting a rotational input received from a driving mechanism to the group of shield assemblies, for synchronously rotating each shield assembly of the group about their respective longitudinal axis.

Claims21

Dependent claims

A delivery system for radiation shielded brachytherapy, the delivery system being adapted to receive an input of radionuclide from an afterloader, the delivery system comprising:

a drive assembly having a drive mechanism and connectors rotatable by the drive mechanism, each of the connectors having one of two or more shield assemblies detachably coupled thereto for rotation about a longitudinal axis of the respective shield assembly, each of the shield assemblies including a needle having a tubular body defining an outer surface and a bore longitudinally extending between opposite ends of the tubular body, the bore being adapted to receive therethrough the input of radionuclide for delivery to a target site, a radiation shielding material extending about a circumferential portion of the tubular body of the needle and disposed radially outwardly of the bore;
and
an interlocking system operatively mounted to the drive assembly, the interlocking system engaging a group of the two or more shield assemblies via their respective connectors, wherein the interlocking system transmits a rotational input received from the driving mechanism to the group of shield assemblies and synchronously rotates each of the shield assemblies of the group about its respective longitudinal axis.

Dependencies are inferred from the claim text.

Facts

Application: 16/471,703Filed 20 Dec 2017
Priority: 21 Dec 2016
Published: 17 Oct 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

A61N 5/1007
Using radiation sources introduced into or applied onto the body; brachytherapy: arrangements or means for the introduction of sources into the body
A61N 5/1027
Using radiation sources introduced into or applied onto the body; brachytherapy: interstitial radiation therapy
A61N 2005/1008
Arrangements or means for the introduction of sources into the body: apparatus for temporary insertion of sources, e.g. afterloaders
A61N 2005/1012
Arrangements or means for the introduction of sources into the body: templates or grids for guiding the introduction of sources

Family

Application62/437,295Us provisional application · filed 21 Dec 2016
US 11,324,966 B2Related patent
US 2019/0314643 A1This patent

From the US filing history. Foreign family members aren’t listed.

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