Non-compliant system for delivery of implant material

• US 6,348,055 B1
• Filed: 10/16/2000
• Issued: 02/19/2002
• Est. Priority Date: 03/24/1999
• Status: Expired due to Term

• Current Assignee: NeuroTherm, Inc. (Abbott Laboratories Incorporated)
• Original Assignee: Parallax Medical, Inc. (Abbott Laboratories Incorporated)
• Inventors: Preissman, Howard
• Primary Examiner(s): REIP, DAVID OWEN
• Application Number:
  US09/688,721
• Time in Patent Office: 491 Days
• Field of Search: 606/92, 606/93, 606/94, 604/207, 604/208, 604/211, 604/218, 604/224, 604/264
• US Class Current: 606/94
• CPC Class Codes: A61B 17/00491 Surgical glue applicators surgical adhesives A61L24/00; two-component delivery syringes A61M5/19
• CPC Class Codes: A61B 17/3468 for implanting or removing devices, e.g. prostheses, implants, seeds, wires devices for implanting seeds A61M37/0069
• CPC Class Codes: A61B 17/8816 characterised by the conduit, e.g. tube, along which fluid flows into the body or by conduit connections
• CPC Class Codes: A61B 2017/00261 Discectomy
• CPC Class Codes: A61F 2/44 for the spine, e.g. vertebrae, spinal discs
• CPC Class Codes: A61F 2/441 made of inflatable pockets or chambers filled with fluid, e.g. with hydrogel
• CPC Class Codes: A61F 2/4601 for introducing bone substitute, for implanting bone graft implants or for compacting them in the bone cavity
• CPC Class Codes: A61F 2/4603 for insertion or extraction of endoprosthetic joints or of accessories thereof
• CPC Class Codes: A61F 2/4611 of spinal prostheses
• CPC Class Codes: A61F 2002/4627 with linear motion along or rotating motion about the instrument axis or the implantation direction, e.g. telescopic, along a guiding rod, screwing inside the instrument
• CPC Class Codes: A61F 2002/4635 using minimally invasive surgery
• CPC Class Codes: A61F 2002/4677 using a guide wire

Abstract

A substantially non-compliant conduit for delivery an implant material from a high pressure applicator to an implant delivery device. Also, a high pressure, substantially non-compliant system for delivery of accurate volumes of implant material to the desired site.

Claims

1. A method of delivering implant material, comprising:

inserting a substantially non-compliant delivery device into a tissue site where implantation of an implant material is desired;

connecting an end of a flexible, substantially non-compliant, high pressure conduit to an input port of the delivery device;

connecting an opposite end of said conduit to a high pressure applicator containing a predetermined volume of tissue implant material; and

applying a high pressure to the implant material with said high pressure applicator, to drive the implant material through said conduit and said device and into the site.

2. The method of claim 1, wherein said applying a high pressure comprises applying a pressure of at least about 1000 psi.

3. The method of claim 2, wherein said applying a high pressure comprises applying a pressure of about 1000 to 2000 psi.

4. The method of claim 2, wherein said applying a high pressure comprises applying a pressure of up to about 3000 psi.

5. The method of claim 1, wherein a combined inside volume of said delivery device, conduit and high pressure applicator increases by less than about 25% during said applying a high pressure.

6. The method of claim 5, wherein said combined inside volume increases by less than about 20% during said applying a high pressure.

7. The method of claim 6, wherein said combined inside volume increases by less than about 10% during said applying a high pressure.

8. The method of claim 7, wherein said combined inside volume increases by less than about 5% during said applying a high pressure.

9. The method of claim 1, wherein said inserting a substantially non-compliant delivery device comprises placing a substantially non-compliant cannula into a hard tissue implant site.

10. The method of claim 1, wherein said delivery device comprises a substantially non-compliant cannula, and said inserting a substantially non-compliant device further comprises:

inserting a stylet into the site where implantation of the implant material is desired; and

guiding said cannula over said stylet into the site where implantation of a hard tissue implant material is desired.

11. The method of claim 10, further comprising:

removing said stylet from within said cannula prior to said connecting an end of said substantially non-compliant, high pressure conduit to said cannula.

12. The method of any of claims 1 wherein the implant site is a vertebral implant site.