Radiation spacer devices, delivery systems, and methods for the prevention of collateral radiation
AssigneeBard Peripheral Vascular, Inc.
InventorsJordan ADDISON, Hiep DO, Chad VAN LIERE
Life of this patent
Estimating the term…
Abstract
A radiation spacer device includes an implantable balloon and a plurality of duckbill valves. The implantable balloon defines a cavity for holding a fluid therein. The implantable balloon has a flexible body and a neck. The neck defines an aperture into the cavity. The plurality of duckbill valves are disposed within the aperture and are serially nested within one another and arranged relative to one another to restrict movement of the fluid out of the cavity.
Claims25
A radiation spacer device comprising:
- an implantable balloon defining a cavity for holding a fluid therein, the implantable balloon having a flexible body and a neck, said neck defining an aperture into the cavity;
- and
- a plurality of duckbill valves disposed within the aperture, wherein the plurality of duckbill valves are serially nested within one another and arranged relative to one another to restrict movement of the fluid out of the cavity.
A radiation spacer delivery system, comprising:
- a radiation spacer device comprising:
- an implantable balloon defining a cavity for holding a fluid therein, the implantable balloon having a flexible body and a neck, said neck defining an opening into the cavity, and
- a plurality of duckbill valves disposed within the opening into the cavity, wherein the plurality of duckbill valves are serially nested within one another and arranged relative to one another to restrict movement of the fluid out of the cavity;
- an injection assembly comprising:
- an elongate member, and
- a syringe comprising a chamber and a plunger, wherein the chamber is fluidically coupled to the elongate member;
- and
- a fluid delivery apparatus comprising:
- a housing, comprising a cannula, a support member, and an actuator, and a detachment mechanism.
A method of protecting a non-targeted tissue from collateral radiation, the method comprising:
- inserting a radiation spacer device between a targeted tissue, wherein the targeted tissue is intended to receive radiation therapy, and the non-targeted tissue, the radiation spacer device comprising:
- an implantable balloon defining a cavity for holding a fluid therein, the implantable balloon having a flexible body and a neck, said neck defining an opening into the cavity, and
- a plurality of duckbill valves disposed within the opening into the cavity, wherein the plurality of duckbill valves are serially nested within one another and arranged relative to one another to restrict movement of the fluid out of the cavity;
- expanding the implantable balloon to create a separation between the targeted tissue and the non-targeted tissue, thereby protecting the non-targeted tissue from collateral radiation.
Dependencies are inferred from the claim text.