US20060155297A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Driver assembly for simultaneous axial delivery of spinal implants
Assignee: Mis IP Holdings LLC
•
Filing: 2005-10-25
•
Granted: —
•
Expires: 2025-10-25
Abstract
Abstract Tools for use in the deployment of spinal implant assemblies such as spinal motion preservation assemblies adapted for use in a spinal motion segment are disclosed including the process for delivering and assembling the spinal motion preservation assemblies in the spinal motion segment via an axial channel created with a trans-sacral approach. The tools allow the deployment of a pair of spinal implant components that are not rigidly connected to one another to be driven into adjacent vertebral bodies. The tools further allow for distraction via either dissimilar thread pitch or by axially advancing a distraction tool based on a threaded engagement with a proximal component in a proximal vertebral body to impose an distraction between that vertebral body and an adjacent distal vertebral body. The tools also allow for the provision of flowable biomaterials such as prosthetic nucleus material. Delivery of flowable biomaterials can be performed while the vertebrae are being held apart by a distraction tool.
Inventors
- 👤 Stephen Ainsworth
- 👤 Robert Assell
- 👤 Bradley Wessman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:10
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/70; A61B17/7055; A61B17/02; A61B17/025; A61B17/88; A61B17/8875; A61B17/8886; A61B17/8888; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/442; A61F2/4425; A61F2/46; A61F2/4603; A61F2/4611; A61B17/34; A61B17/3417; A61B17/3421; A61B17/8897; A61B17/00234; A61B2017/00238; A61B2017/00261; A61B2017/0256; A61B2017/3445; A61F2/30721; A61F2/30742; A61F2/441; A61F2/4455; A61F2/4637; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30075; A61F2002/30108; A61F2002/30199; A61F2002/30224; A61F2002/30235; A61F2002/30316; A61F2002/30317; A61F2002/30327; A61F2002/30329; A61F2002/30405; A61F2002/30476; A61F2002/30495; A61F2002/30507; A61F2002/30535; A61F2002/30537; A61F2002/3055; A61F2002/30563; A61F2002/30565; A61F2002/30566; A61F2002/30581; A61F2002/30588; A61F2002/30601; A61F2002/30621; A61F2002/30649; A61F2002/30665; A61F2/30767; A61F2/30771; A61F2002/3085; A61F2002/30859; A61F2002/30863; A61F2002/443; A61F2002/444; A61F2002/4625; A61F2002/4627; A61F2002/4629; A61F2210/00; A61F2210/0061; A61F2220/00; A61F2220/0025; A61F2230/00; A61F2230/0063; A61F2230/0069; A61F2250/00; A61F2250/0014; A61F2250/0039
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
58 words
1 . An apparatus to deliver a spinal implant assembly to a motion segment, the implant assembly comprising a distal component and a proximal component; the apparatus configured to simultaneously rotatably drive the distal component and the proximal component into the motion segment and to maintain a relative axial spacing between the distal component and the proximal component.
Claim 2
Dependent Claim
58 words
1 . An apparatus to deliver a spinal implant assembly to a motion segment, the implant assembly comprising a distal component and a proximal component; the apparatus configured to simultaneously rotatably drive the distal component and the proximal component into the motion segment and to maintain a relative axial spacing between the distal component and the proximal component.
Claim 3
Dependent Claim
38 words
2 . The apparatus of claim 1 wherein a set of interchangeable driver heads of different lengths can be used to select a particular relative axial spacing to be maintained between the distal component and the proximal component.
Claim 4
Dependent Claim
26 words
3 . The apparatus of claim 1 wherein the apparatus is adapted for use in an axial channel in the spine accessed through a trans-sacral approach.
Claim 5
Dependent Claim
33 words
4 . The apparatus of claim 1 wherein the apparatus is adapted to allow delivery of a flowable biomaterial to an intervertebral disc space located between the distal component and the proximal component.
Claim 6
Dependent Claim
17 words
5 . The apparatus of claim 4 wherein the flowable biomaterial is an in situ curing elastomer.
Claim 7
Dependent Claim
14 words
6 . The apparatus of claim 5 wherein the elastomer is comprised of silicone.
Claim 8
Dependent Claim
14 words
7 . The apparatus of claim 1 wherein the flowable biomaterial is a hydrogel.
Claim 9
Dependent Claim
18 words
8 . The apparatus of claim 1 wherein the flowable biomaterial is a blend of hydrogel and elastomer.
Claim 10
Dependent Claim
16 words
9 . The apparatus of claim 1 wherein the apparatus has an elongated polygonal driver component.
Claim 11
Dependent Claim
20 words
10 . The apparatus of claim 9 wherein at least a portion of the elongated polygonal driver is hexagonal shaped.
Claim 12
Dependent Claim
16 words
11 . The apparatus of claim 1 wherein the apparatus has a dual hex head driver.
Claim 13
Dependent Claim
20 words
12 . The apparatus of claim 1 wherein the apparatus has a shoulder section for engagement with the proximal component.
Claim 14
Dependent Claim
26 words
13 . The apparatus of claim 1 wherein the apparatus has a key which engages with corresponding slots on the distal component and the proximal component.
Claim 15
Dependent Claim
53 words
14 . The apparatus of claim 1 wherein the relative axial spacing between the distal component and the proximal component is maintained by engagement of the distal component with a distal end of a driver component within the apparatus and the engagement of the proximal component with a shoulder on the driver component.
Claim 16
Dependent Claim
63 words
15 . The apparatus of claim 1 wherein the apparatus is adapted to rotatably drive the distal component through a proximal vertebral body and then subsequently drive the proximal component into the proximal vertebral body through timed delivery of a set of external threads on the proximal component to a helical thread path cut in the proximal vertebral body by the distal component.
Claim 17
Dependent Claim
57 words
16 . The apparatus of claim 15 where the adaptation of the apparatus comprises selecting the relative axial spacing between the distal component and the proximal component based in part on the thread pitch used in a set of external threads on the distal component and used in the set of external threads on the proximal component.
Claim 18
Dependent Claim
46 words
17 . The apparatus of claim 15 where the adaptation of the apparatus comprises selecting the relative axial spacing between the distal component and the proximal component based in part on the anatomy of the motion segment for the intended recipient of the spinal implant assembly.
Claim 19
Dependent Claim
41 words
18 . The apparatus of claim 9 further comprising a threaded retainer rod to engage the distal component by rotating relative to the driver component and a threaded coupler to engage the proximal component while rotating relative to the driver component.
Claim 20
Dependent Claim
39 words
19 . The apparatus of claim 1 further adapted to simultaneously drive a proximal component with a first cross section and a distal component with a second smaller cross section through use of a dual headed polygonal torque driver.
Claim 21
Dependent Claim
15 words
20 . The apparatus of claim 1 further adapted for deployment over a guide wire.
Claim 22
Dependent Claim
124 words
21 . An apparatus to engage a previously implanted pair of components, the pair of components implanted in adjacent vertebral bodies accessed through an axial channel in a spine created through a trans sacral approach, the previously implanted pair of components comprising a distal component and a proximal component, the apparatus adapted for threaded engagement with the proximal component so that rotation of the apparatus causes axial advancement such that the apparatus contacts the distal component but does not become threadedly engaged with the distal component, the apparatus adapted to allow delivery of a flowable biomaterial to a space located between the distal component and the proximal component while the apparatus remains engaged with the proximal component and in contact with the distal component.
Claim 23
Dependent Claim
124 words
21 . An apparatus to engage a previously implanted pair of components, the pair of components implanted in adjacent vertebral bodies accessed through an axial channel in a spine created through a trans sacral approach, the previously implanted pair of components comprising a distal component and a proximal component, the apparatus adapted for threaded engagement with the proximal component so that rotation of the apparatus causes axial advancement such that the apparatus contacts the distal component but does not become threadedly engaged with the distal component, the apparatus adapted to allow delivery of a flowable biomaterial to a space located between the distal component and the proximal component while the apparatus remains engaged with the proximal component and in contact with the distal component.
Claim 24
Dependent Claim
37 words
22 . The apparatus of claim 21 wherein a set of interchangeable sub-components of different lengths can be used based on the desired relative axial spacing to be maintained between the distal component and the proximal component.
Claim 25
Dependent Claim
17 words
23 . The apparatus of claim 21 wherein the flowable biomaterial is an in situ curing elastomer.
Claim 26
Dependent Claim
14 words
24 . The apparatus of claim 23 wherein the elastomer is comprised of silicone.
Claim 27
Dependent Claim
14 words
25 . The apparatus of claim 21 wherein the flowable biomaterial is a hydrogel.
Claim 28
Dependent Claim
18 words
26 . The apparatus of claim 21 wherein the flowable biomaterial is a blend of hydrogel and elastomer.
Claim 29
Dependent Claim
28 words
27 . The apparatus of claim 21 wherein the apparatus further comprises an atraumatic tip which is the point of contact between the apparatus and the distal component.
Claim 30
Dependent Claim
54 words
28 . The apparatus of claim 21 wherein the apparatus has a set of external threads with a sufficient number of threads to axially advance the apparatus towards the distal component, make contact with the distal component, and push the distal component to increase the distance between the distal component and the proximal component.
References Cited (Backward Citations)
US640661A
Cited
US1029104A
Cited
US1079224A
Cited
US1086144A
Cited
US1111691A
Cited
US2243717A
Cited
US2550866A
Cited
US2586556A
Cited
US3272541A
Cited
US3367326A
Cited
US3837347A
Cited
US4175555A
Cited
US4276874A
Cited
US4297047A
Cited
US4309777A
Cited
US4636217A
Cited
US5108430A
Cited
US4875794A
Cited
US4932925A
Cited
US4858601A
Cited
US5002576A
Cited
US4854797A
Cited
US4932975A
Cited
US5059193A
Cited
US5078718A
Cited
US5102276A
Cited
US5498265A
Cited
US5061137A
Cited
US5246458A
Cited
US5480401A
Cited
US5338297A
Cited
US5360430A
Cited
US5733284A
Cited
US5433739A
Cited
US5562737A
Cited
US6899719B2
Cited
US6235043B1
Cited
US7077865B2
Cited
US5702453A
Cited
US5743912A
Cited
US5827285A
Cited
US6093205A
Cited
US6125726A
Cited
US6190413B1
Cited
US6440168B1
Cited
US6682561B2
Cited
US6063121A
Cited
US6582468B1
Cited
US6733532B1
Cited
US6582466B1
Cited
US6030162A
Cited
US6086589A
Cited
US6056749A
Cited
US6428576B1
Cited
US7048717B1
Cited
US6692495B1
Cited
US20030055427A1
Cited
US7291150B2
Cited
US7547324B2
Cited
US6899716B2
Cited
US6558390B2
Cited
US20050113929A1
Cited
US20050113919A1
Cited
US20050149191A1
Cited
US7491236B2
Cited
US20010021852A1
Cited
US6258090B1
Cited
US6506194B1
Cited
US6821277B2
Cited
US20020068975A1
Cited
US20020035400A1
Cited
US6964665B2
Cited
US6764489B2
Cited
US20040083002A1
Cited
US20050177167A1
Cited
US20020198527A1
Cited
US7156877B2
Cited
US20030028193A1
Cited
US6626943B2
Cited
US6730088B2
Cited
US20030114930A1
Cited
US6656184B1
Cited
US20030204261A1
Cited
US20040210227A1
Cited
US20040230309A1
Cited
US7419505B2
Cited
US20050043796A1
Cited
US20050277940A1
Cited
US7175626B2
Cited
US20060085073A1
Cited
US7140281B1
Cited
US20060229609A1
Cited
US7361192B2
Cited
US20070168042A1
Cited
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.