Small joint fixation

• US 10,058,431 B2
• Filed: 07/19/2016
• Issued: 08/28/2018
• Est. Priority Date: 10/19/2012
• Status: Active Grant

• Current Assignee: Tyber Medical, LLC
• Original Assignee: Tyber Medical, LLC
• Inventors: Tyber, Jeffrey, Ferreira, Rui, Faresich, Christopher, Buss, Donald
• Primary Examiner(s): Ku, Si Ming
• Application Number:
  US15/213,935
• Publication Number:
  US 20170000618A1
• Time in Patent Office: 770 Days
• CPC Class Codes: A61B 17/1615 Drill bits, i.e. rotating tools extending from a handpiece to contact the worked material
• CPC Class Codes: A61B 17/164 intramedullary
• CPC Class Codes: A61B 17/1659 Surgical rasps, files, planes, or scrapers
• CPC Class Codes: A61B 17/1682 for the foot or ankle
• CPC Class Codes: A61B 17/70 Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
• CPC Class Codes: A61B 17/7059 Cortical plates A61B17/7007, A61B17/7058 take precedence
• CPC Class Codes: A61B 17/7233 with special means of locking the nail to the bone
• CPC Class Codes: A61B 17/7283 with special cross-section of the nail
• CPC Class Codes: A61B 17/7291 for small bones, e.g. in the foot, ankle, hand or wrist
• CPC Class Codes: A61B 17/8095 Wedge osteotomy devices
• CPC Class Codes: A61B 17/8645 Headless screws, e.g. ligament interference screws
• CPC Class Codes: A61B 17/8852 capable of being assembled or enlarged, or changing shape, inside the bone or disc
• CPC Class Codes: A61B 17/8875 Screwdrivers, spanners or wrenches
• CPC Class Codes: A61B 2017/00889 antimicrobial, disinfectant
• CPC Class Codes: A61B 2017/565 for surgical correction of axial deviation, e.g. hallux valgus or genu valgus
• CPC Class Codes: A61B 2090/037 with a frangible part, e.g. by reduced diameter
• CPC Class Codes: A61B 90/94 coded with symbols, e.g. text
• CPC Class Codes: A61F 2/28 Bones joints A61F2/30
• CPC Class Codes: A61F 2/30771 applied in original prostheses, e.g. holes or grooves
• CPC Class Codes: A61F 2/4225 for feet, e.g. toes
• CPC Class Codes: A61F 2/44 : for the spine, e.g. vertebrae, spinal discs
• CPC Class Codes: A61F 2/4455 : for the fusion of spinal bodies, e.g. intervertebral fusion of adjacent spinal bodies, e.g. fusion cages intervertebral discs A61F2/442
• CPC Class Codes: A61F 2/4465 : having a circular or kidney shaped cross-section substantially perpendicular to the axis of the spine
• CPC Class Codes: A61F 2/447 : substantially parallelepipedal, e.g. having a rectangular or trapezoidal cross-section
• CPC Class Codes: A61F 2/4603 : for insertion or extraction of endoprosthetic joints or of accessories thereof
• CPC Class Codes: A61F 2/4606 : of wrists or ankles; of hands, e.g. fingers; of feet, e.g. toes
• CPC Class Codes: A61F 2/4611 : of spinal prostheses
• CPC Class Codes: A61F 2002/2817 : Bone stimulation by chemical reactions or by osteogenic or biological products for enhancing ossification, e.g. by bone morphogenetic or morphogenic proteins [BMP] or by transforming growth factors [TGF]
• CPC Class Codes: A61F 2002/2835 : Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
• CPC Class Codes: A61F 2002/30011 : differing in porosity
• CPC Class Codes: A61F 2002/30028 : differing in tissue ingrowth capacity, e.g. made from both ingrowth-promoting and ingrowth-preventing parts
• CPC Class Codes: A61F 2002/3008 : radio-opaque, e.g. radio-opaque markers
• CPC Class Codes: A61F 2002/30266 : wedge-shaped parallelepipeds
• CPC Class Codes: A61F 2002/30281 : wedge-shaped
• CPC Class Codes: A61F 2002/30321 : differing in roughness
• CPC Class Codes: A61F 2002/30326 : differing in height or in length
• CPC Class Codes: A61F 2002/30355 : Cylinder of elliptical or oval basis
• CPC Class Codes: A61F 2002/30507 : using a threaded locking member, e.g. a locking screw or a set screw
• CPC Class Codes: A61F 2002/30515 : using a locking wedge or block
• CPC Class Codes: A61F 2002/30523 : by means of meshing gear teeth
• CPC Class Codes: A61F 2002/30538 : for adjusting angular orientation
• CPC Class Codes: A61F 2002/30556 : for adjusting thickness
• CPC Class Codes: A61F 2002/30578 : having apertures, e.g. for receiving fixation screws
• CPC Class Codes: A61F 2002/30579 : with mechanically expandable devices, e.g. fixation devices
• CPC Class Codes: A61F 2002/30593 : hollow
• CPC Class Codes: A61F 2002/30622 : Implant for fusing a joint or bone material
• CPC Class Codes: A61F 2002/3071 : Identification means; Administration of patients
• CPC Class Codes: A61F 2002/30774 : internally-threaded
• CPC Class Codes: A61F 2002/30808 : parallel
• CPC Class Codes: A61F 2002/3082 : Grooves
• CPC Class Codes: A61F 2002/30836 : knurled
• CPC Class Codes: A61F 2002/3084 : Nanostructures
• CPC Class Codes: A61F 2002/30843 : Pyramidally-shaped
• CPC Class Codes: A61F 2002/30904 : serrated profile, i.e. saw-toothed
• CPC Class Codes: A61F 2002/3092 : having an open-celled or open-pored structure
• CPC Class Codes: A61F 2002/3093 : for promoting ingrowth of bone tissue
• CPC Class Codes: A61F 2002/30985 : using three dimensional printing [3DP]
• CPC Class Codes: A61F 2002/4228 : for interphalangeal joints, i.e. IP joints
• 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 2220/0016 : with sharp anchoring protrusions, e.g. barbs, pins, spikes
• CPC Class Codes: A61F 2310/00407 : Coating made of titanium or of Ti-based alloys
• CPC Class Codes: A61F 2310/00461 : Coating made of nickel or Ni-based alloys
• CPC Class Codes: A61F 2310/0052 : Coating made of silver or Ag-based alloys
• CPC Class Codes: A61F 2310/00796 : Coating or prosthesis-covering structure made of a phosphorus-containing compound, e.g. hydroxy(l)apatite
• CPC Class Codes: A61L 2400/18 : Modification of implant surfaces in order to improve biocompatibility, cell growth, fixation of biomolecules, e.g. plasma treatment
• CPC Class Codes: A61L 27/025 : Other specific inorganic materials not covered by A61L27/04 - A61L27/12
• CPC Class Codes: A61L 27/04 : Metals or alloys
• CPC Class Codes: A61L 27/306 : Other specific inorganic materials not covered by A61L27/303 - A61L27/32

Abstract

Disclosed is a medical device having a first implant portion having a proximal end, a second implant portion connected to the first implant portion, the second implant portion having a distal end, and a driver assembly removably connected to the distal end, the driver assembly comprising a drill connected to the distal end at a connection.

Claims

1. A method of joining adjacent bone structures comprising the steps of:

(a) providing a medical device having;

a first implant portion;

a second implant portion attached to the first implant portion; and

a driver assembly having an instrument adapted to form an opening in bone, the driver assembly being integrally connected to and removably attached to the second implant portion at a connection, distal from the first implant portion;

(b) placing the first implant portion against a first bone structure;

(c) inserting the first implant portion into the first bone structure;

(d) snapping the second implant portion from the driver assembly;

(e) using the driver assembly to form an opening in a second bone structure, adjacent to the first bone structure; and

(f) inserting the second implant portion into the opening.

2. The method according to claim 1, wherein step (c) is performed in the absence of pre-drilling the first bone structure.

3. The method according to claim 1, wherein the driver assembly comprises a drill at a proximal end thereof, and wherein step (e) comprises using the drill to drill the opening into the second bone structure.

4. The method according to claim 3, wherein, after step (e) and before step (f), a second opening, adjacent to the opening, is formed in the second bone structure.

5. The method according to claim 4, wherein the driver assembly further comprises a broach, and wherein the method further comprises, after step (e), the step of using the broach to widen the opening and the second opening.

6. The method according to claim 1, wherein the second implant portion comprises a void adjacent to the connection, and wherein step (d) comprises separating the second implant portion from the driver assembly at the void.

7. The method according to claim 1, wherein the driver assembly comprises a through-opening extending therethrough, and wherein step (c) further comprises inserting the second implant portion through the through-opening and rotating the driver assembly.

8. The method according to claim 1, wherein the driver assembly comprises a face cutter, and wherein the face cutter is used to smooth the second bone structure prior to step (f).

9. The method according to claim 1, wherein the second implant portion comprises a first prong, a second prong, and a gap between the first prong and the second prong, and wherein, after step (d), the first prong biases away from the second prong.

10. A method of joining adjacent bone structures comprising the steps of:

(a) separating a first bone segment from a second bone segment;

(b) using an assembly comprising a fixation device integrally connected to but separable from a driver assembly at a connection, the fixation device having a first implant portion at a proximal end and a second implant portion at a distal end and the second implant portion being connected to the driver assembly, the driver assembly including a drill adapted to form an opening in bone;

(c) inserting the first implant portion into the second first bone segment;

(d) breaking the driver assembly away from the second implant portion at the connection;

(e) using the drill to drill a first passage into the second bone segment; and

(f) inserting the second implant portion into the first passage.

11. The method according to claim 10, wherein the second implant portion comprises a plurality of barbs, and wherein step (f) comprises forcing the barbs into the first passage.

12. The method according to claim 10, further comprising, prior to step (c), drilling a second passage into the first bone segment and wherein step (c) comprises inserting the first implant portion into the second passage.

13. The method according to claim 10, further comprising the step of, prior to step (f), widening the first passage.

14. The method according to claim 10, wherein step (a) is performed in the absence of pre-drilling the first bone segment.

15. The method according to claim 10, wherein the first bone segment and the second bone segment are different bones, and wherein step (f) results in joining the different bones together.

16. A method of joining adjacent bone structures comprising the steps of:

(a) providing a monolithic medical device having;

a first implant portion;

a second implant portion attached to the first implant portion; and

a driver assembly removably attached to the second implant portion at a connection, distal from the first implant portion;

(b) placing the first implant portion against a first bone structure;

(c) using a driver device attached to the driver assembly, inserting the first implant portion into the first bone structure;

(d) separating the second implant portion from the driver assembly;

(e) with the driver device still attached to the driver assembly, using the driver assembly to form an opening in a second bone structure, adjacent to the first bone structure; and

(f) inserting the second implant portion into the opening.

17. The method according to claim 16, wherein the driver assembly comprises a through-opening formed there in and wherein step (f) comprises inserting the second implant portion through the through-opening and rotating the driver assembly, the second implant portion engaging the through-opening and rotating with the driver assembly.

18. The method according to claim 16, wherein step (d) comprises the driver assembly being non-reattachable.