IMPLANTS FOR USE IN BRACHYTHERAPY AND OTHER RADIATION THERAPY THAT RESIST MIGRATION AND ROTATION

• US 20090149692A1
• Filed: 02/18/2009
• Published: 06/11/2009
• Est. Priority Date: 07/22/2005
• Status: Abandoned Application

• Current Assignee: Eckert & Ziegler BEBIG S.A (Eckert & Ziegler AG)
• Original Assignee: Biocompatibles UK Limited (Boston Scientific Corporation)
• Inventors: Lamoureux, Gary A., Matons, James, Rice, Warren, Johnston, Warren, Bouffard, Matthew
• Application Number:
  US12/388,436
• Publication Number:
  US 20090149692A1
• Time in Patent Office: Days
• US Class Current: 600/8
• CPC Class Codes: A61N 2005/1023 Means for creating a row of seeds, e.g. spacers
• CPC Class Codes: A61N 2005/1024 Seeds
• CPC Class Codes: A61N 5/1027 Interstitial radiation therapy

Abstract

In an embodiment a therapeutic member includes a single radioactive seed and is adapted to be implanted into patient tissue using a hollow needle. The seed includes a metallic housing with radioactive material contained within the metallic housing. A polymeric bio-adherent and/or bio-adhesive material surrounds at least a portion the housing of the single radioactive seed. The polymeric bio-adherent and/or bio-adhesive material reduces a tendency of the member to migrate and rotate within a patient'"'"'s body after implantation of the member.

Claims

1. An implantable therapeutic member configured to be implanted in a similar manner as loose radioactive seeds are implanted, for use in brachytherapy, comprising:

a single radioactive seed including a metallic housing with radioactive material contained within the metallic housing; and

a polymeric bio-adherent material surrounding at least a portion the housing of the single radioactive seed;

wherein the implantable therapeutic member is adapted to be implanted into patient tissue using a hollow needle; and

wherein the polymeric bio-adherent material, which surrounds at least a portion the housing of the single radioactive seed, reduces a tendency of the member to migrate and rotate within a patient'"'"'s body after implantation of the member.

2. The implantable therapeutic member of claim 1, wherein the polymeric bio-adherent material completely encapsulates the housing of the single radioactive seed.

3. The implantable therapeutic member of claim 2, wherein the polymeric bio-adherent material is molded to completely encapsulate the housing of the single radioactive seed.

4. The implantable therapeutic member of claim 2, wherein:

the single radioactive seed has a first length; and

the encapsulating polymeric bio-adherent material causes the implantable therapeutic member to have a second length that is greater than the first length.

5. The therapeutic member of claim 1, wherein the metallic housing of the single radioactive seed has a substantially smooth outer surface.

6. The implantable therapeutic member of claim 1, wherein the polymeric bio-adherent material does not completely encapsulate the housing of the single radioactive seed.

7. An implantable therapeutic member configured to be implanted in a similar manner as loose radioactive seeds are implanted, for use in brachytherapy, comprising:

a single radioactive seed including a metallic housing with radioactive material contained within the metallic housing; and

a polymeric bio-adhesive material surrounding at least a portion the housing of the single radioactive seed;

wherein the implantable therapeutic member is adapted to be implanted into patient tissue using a hollow needle; and

wherein the polymeric bio-adherent material, which surrounds at least a portion the housing of the single radioactive seed, reduces a tendency of the member to migrate and rotate within a patient'"'"'s body after implantation of the member.

8. The implantable therapeutic member of claim 7, wherein the polymeric bio-adhesive material completely encapsulates the housing of the single radioactive seed.

9. The implantable therapeutic member of claim 8, wherein the polymeric bio-adhesive material is molded to completely encapsulate the housing of the single radioactive seed.

10. The implantable therapeutic member of claim 8, wherein:

the single radioactive seed has a first length; and

the encapsulating polymeric bio-adhesive material causes the implantable therapeutic member to have a second length that is greater than the first length.

11. The therapeutic member of claim 7, wherein the metallic housing of the single radioactive seed has a substantially smooth outer surface.

12. The implantable therapeutic member of claim 7, wherein the polymeric bio-adhesive material does not completely encapsulate the housing of the single radioactive seed.