Inflatable dental implant for receipt and support of a dental prosthesis

• US 6,042,380 A
• Filed: 11/25/1998
• Issued: 03/28/2000
• Est. Priority Date: 11/25/1997
• Status: Expired due to Term

• Current Assignee: Oren Globerman
• Original Assignee: Disc-O-Tech Medical Technologies Limited (Medtronic Plc)
• Inventors: De Rowe, Ari
• Primary Examiner(s): Wilson, John J.
• Application Number:
  US09/199,678
• Time in Patent Office: 489 Days
• Field of Search: 433/173, 433/175, 433/177, 433/172
• US Class Current: 433/173
• CPC Class Codes: A61C 8/0033 Expandable implants; Implants with extendable elements
• CPC Class Codes: A61C 8/004 inflatable

Abstract

An expandable dental implant which is less traumatically inserted and can immediately receive functional loading to support a dental prosthesis upon insertion into the patient'"'"'s mouth. The expandable implant is constructed as an inflatable balloon, which has a first, relatively smaller diameter prior to insertion into the patient'"'"'s mouth. The implant is provided with an insertion end, for insertion into a formed bore in the patient'"'"'s jaw bone. Upon insertion into the bone, the balloon can be inflated into a second, larger diameter profile by filling the hollow interior of the balloon using an appropriate hardening material, which applies pressure against the interior walls of the implant, allowing the implant to inflate within the bone and to fixate. Upon inflation of the implant, a dental crown can immediately be added to the implant'"'"'s attachment end.

Claims

1. A dental assembly, comprising:

a dental implant, said dental implant comprising an inflatable metal or metal alloy balloon having a hollow interior, said inflatable balloon having a first relative, smaller diameter, said implant being provided with an insertion end for insertion into a pre-formed bore in a patient'"'"'s jawbone and an attachment end for attachment of a dental prosthesis, said inflatable balloon having an opening into said hollow interior, said inflatable balloon comprising walls, said walls being expandable outwardly to form a second, relatively larger diameter upon inflation of said dental implant by filling of said hollow interior with a filler material.

2. A dental assembly as claimed in claim 1, wherein said walls comprise stainless steel.

3. A dental assembly as claimed in claim 1, wherein said walls are comprised of material selected from the group of titanium, tantalum, and platinum.

4. A dental assembly as claimed in claim 1, wherein said walls comprise shape memory metal.

5. A dental assembly as claimed in claim 4, wherein said walls comprise Nitinol.

6. A dental assembly as claimed in claim 1, wherein said walls comprise a biocompatable material.

7. A dental assembly as claimed in claim 1, wherein said filler material comprises a solidifying cement.

8. A dental assembly as claimed in claim 7, wherein said solidifying cement comprises MIRACLE MIX.

9. A dental assembly as claimed in claim 1, wherein said filler material comprises bone cement.

10. A dental assembly as claimed in claim 1, wherein said filler material comprises an incompressible fluid.

11. A dental assembly as claimed in claim 1, further comprising a valve for insertion of said filler material into said dental implant.

12. A dental assembly as claimed in claim 1, wherein said filler material can be caused to change its phase from fluid to solid using a source external to said implant.

13. A dental assembly as claimed in claim 12, wherein said source comprises a heat source.

14. A dental assembly as claimed in claim 1 further comprising a partially hollow inflator pin in fluid communication with said walls.

15. A dental assembly as claimed in claim 14 wherein said attachment end comprises an inflator pin having a connecting conduit between the interior of said inflator pin and said hollow interior.

16. A dental assembly as claimed in claim 15 wherein said inflatable balloon comprises a spiral tube wrapped around said inflator pin.