Brachytherapy and buttress element co-delivery

• US 9,421,396 B2
• Filed: 09/05/2013
• Issued: 08/23/2016
• Est. Priority Date: 09/05/2012
• Status: Active Grant

• Current Assignee: Mayo Foundation For Medical Education And Research (Mayo Clinic)
• Original Assignee: Mayo Foundation For Medical Education And Research (Mayo Clinic)
• Inventors: Cassivi, Stephen D.
• Primary Examiner(s): Matthews, Christine H
• Assistant Examiner(s): LANNU, JOSHUA DARYL DEANON
• Application Number:
  US14/019,277
• Publication Number:
  US 20140066688A1
• Time in Patent Office: 1,083 Days
• US Class Current: 1/1
• CPC Class Codes: A61B 17/07292 Reinforcements for staple line, e.g. pledgets
• CPC Class Codes: A61B 2017/00893 pharmaceutically effective
• CPC Class Codes: A61N 5/1007 Arrangements or means for the introduction of sources into the body
• CPC Class Codes: Y10T 29/49826 Assembling or joining

Abstract

Brachytherapy delivery devices and buttress elements are described herein, along with methods of assembling the brachytherapy devices and the buttress elements for co-delivery of the brachytherapy delivery devices and buttress elements are described herein.

Claims

1. A method of assembling a buttress element with radioactive material, the method comprising:

inserting a brachytherapy delivery device into only one channel in a buttress element,

wherein the brachytherapy delivery device comprises a carrier line and a stylet, the carrier line comprising a length extending between a first end and a second end, wherein radioactive material is distributed along the carrier line, and the stylet extending from a base to a tip, wherein the first end of the carrier line is attached to the stylet proximate the base of the stylet,

and wherein the buttress element comprises a body in the form of a sheet comprising a thickness, wherein the thickness is measured between a first major surface and a second major surface, and wherein the body is constructed of one or more biocompatible materials, and wherein the channel is formed in the body, the channel extending from a first end to a second end, and wherein the channel is located between the first major surface and the second major surface of the buttress element;

advancing the tip of the stylet of the brachytherapy delivery device through the channel until at least a portion of the radioactive material is located in the channel; and

separating the carrier line from the stylet after advancing the tip of the stylet through the channel, such that the radioactive material in the channel is located between the first major surface and the second major surface of the body.

2. A method according to claim 1, wherein the buttress element comprises a width measured between a first side and a second side, and wherein the channel extends from the first side to the second side of the buttress element.

3. A method according to claim 1, wherein the buttress element comprises a width measured between a first side and a second side, and wherein the channel extends over a channel distance that is less than the entire width of the buttress element.

4. A method according to claim 1, wherein the channel comprises a first opening proximate the first end of the channel.

5. A method according to claim 4, wherein the channel comprises a second opening proximate the second end of the channel.

6. A method according to claim 1, wherein the channel is formed between two layers of buttress material attached together along opposing edges of the channel.

7. A method according to claim 1, wherein the buttress element comprises a plurality of channels formed in the body, wherein each channel of the plurality of channels extends from a first end to a second end and is located between the first major surface and the second major surface of the body.

8. A method according to claim 7, wherein the plurality of channels are aligned with each other.

9. A method according to claim 1, wherein the one or more biocompatible materials comprises bioresorbable material.

10. A method of assembling a buttress element with radioactive material, the method comprising:

inserting a brachytherapy delivery device into a channel in a buttress element,

wherein the brachytherapy delivery device comprises a carrier line and a stylet, the carrier line comprising a length extending between a first end and a second end, wherein radioactive material is distributed along the carrier line in a plurality of radioactive seeds, and the stylet extending from a base to a tip, wherein the first end of the carrier line is attached to the stylet proximate the base of the stylet,

and wherein the buttress element comprises a body in the form of a sheet comprising a thickness, wherein the thickness is measured between a first major surface and a second major surface, and wherein the body is constructed of one or more biocompatible materials, and wherein the channel is formed in the body, the channel extending from a first end to a second end, and wherein the channel is located between the first major surface and the second major surface of the buttress element;

advancing the tip of the stylet of the brachytherapy delivery device through the channel until at least some radioactive seeds of the plurality of radioactive seeds are located in the channel; and

separating the carrier line from the stylet after advancing the tip of the stylet through the channel such that the radioactive seeds located in the channel are retained in the channel between the first major surface and the second major surface of the body.

11. A method according to claim 10, wherein the buttress element comprises a width measured between a first side and a second side, and wherein the channel extends from the first side to the second side of the buttress element.

12. A method according to claim 10, wherein the buttress element comprises a width measured between a first side and a second side, and wherein the channel extends over a channel distance that is less than the entire width of the buttress element.

13. A method according to claim 10, wherein the channel comprises a first opening proximate the first end of the channel.

14. A method according to claim 10, wherein the channel is formed between two layers of buttress material attached together along opposing edges of the channel.

15. A method according to claim 10, wherein the buttress element comprises a plurality of channels formed in the body, wherein each channel of the plurality of channels extends from a first end to a second end and is located between the first major surface and the second major surface of the body.

16. A method of assembling a buttress element with radioactive material, the method comprising:

inserting a brachytherapy delivery device into a channel in a buttress element,

wherein the brachytherapy delivery device comprises a carrier line and a stylet, the carrier line comprising a length extending between a first end and a second end, wherein radioactive material is distributed along the carrier line, and the stylet extending from a base to a tip, wherein the first end of the carrier line is attached to the stylet proximate the base of the stylet,

and wherein the buttress element comprises a body in the form of a sheet comprising a thickness, wherein the thickness is measured between a first major surface and a second major surface, and wherein the body is constructed of one or more biocompatible materials, and wherein the channel is formed in the body, the channel extending from a first end to a second end, wherein the channel is located between the first major surface and the second major surface of the buttress element, and further wherein the channel is formed between two layers of buttress material attached together along opposing edges of the channel;

advancing the tip of the stylet of the brachytherapy delivery device through the channel until at least a portion of the radioactive material is located in the channel; and

separating the carrier line from the stylet after the radioactive material is located in the channel.

17. A method according to claim 16, wherein the buttress element comprises a width measured between a first side and a second side, and wherein the channel extends from the first side to the second side of the buttress element.

18. A method according to claim 16, wherein the buttress element comprises a width measured between a first side and a second side, and wherein the channel extends over a channel distance that is less than the entire width of the buttress element.

19. A method according to claim 16, wherein the channel comprises a first opening proximate the first end of the channel.

20. A method according to claim 16, wherein the buttress element comprises a plurality of channels formed in the body, wherein each channel of the plurality of channels extends from a first end to a second end and is located between the first major surface and the second major surface of the body.