US20040102774A1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Systems and techniques for intravertebral spinal stabilization with expandable devices
Assignee: Warsaw Orthopedic Inc
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Filing: 2003-11-20
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Granted: —
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Expires: 2023-11-20
Abstract
Abstract Expandable devices include a body defining a hollow interior for receiving distal portion of a delivery instrument. The expandable devices are collapsed on the distal portion of the delivery instrument for delivery to the operative site within a vertebral body. Upon delivery of the collapsed expandable devices to the operative site, the distal portion of the delivery instrument is enlargeable to expand the expandable device in situ for implantation at the operative site.
Inventors
- 👤 Hai Trieu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:44
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/56; A61B17/58; A61B17/68; A61B17/70; A61B17/7097; A61B17/88; A61B17/885; A61B17/8852; A61B17/8858; A61F; A61F2/00; A61F2/02; A61F2/30; A61F2/44; A61F2/46; A61F2/4603; A61F2/4611; A61B2017/00535; A61B2017/00557; A61B17/02; A61B17/025; A61B2017/0256; A61F2/28; A61F2002/2817; A61F2002/2835; A61F2002/30001; A61F2002/30003; A61F2002/3006; A61F2002/30062; A61F2002/30092; A61F2002/30108; A61F2002/3011; A61F2002/30112; A61F2002/30133; A61F2002/30199; A61F2002/30224; A61F2002/30235; A61F2002/30261; A61F2002/30316; A61F2002/30317; A61F2002/30324; A61F2002/30329; A61F2002/30405; A61F2002/30411; A61F2002/30428; A61F2002/30518; A61F2002/3052; A61F2002/30535; A61F2002/30537; A61F2002/3055; A61F2002/30556; A61F2002/30561; A61F2002/30581; A61F2002/30583; A61F2002/30584; A61F2002/30593; A61F2002/30621; A61F2002/30624; A61F2002/30667; A61F2002/30677; A61F2/30767; A61F2/30771; A61F2002/30772; A61F2002/30841; A61F2002/30878; A61F2002/448; A61F2002/4625; A61F2002/4627; A61F2002/4628; A61F2210/00; A61F2210/0004; A61F2210/0014; A61F2210/0085; A61F2220/00; A61F2220/0025; A61F2230/00; A61F2230/0002; A61F2230/0004; A61F2230/0015; A61F2230/0063; A61F2230/0069; A61F2230/0082; A61F2250/00; A61F2250/0004; A61F2250/0009; A61F2250/0014; A61F2250/0036; A61F2310/00; A61F2310/00005; A61F2310/00011; A61F2310/00179; A61F2310/00329; A61F2310/00353; A61F2310/00365
Claims Analysis
Total Claims: 71
Claim 1
Independent Claim
61 words
1 . A method for intravertebral reduction, comprising: accessing a vertebral body; forming an access passage into the vertebral body; delivering an expandable device through the passage into the vertebral body in an unexpanded condition; expanding the expandable device in the vertebral body with an expandable element; removing the expandable element; and placing bone filler material within the expanded expandable device.
Claim 2
Dependent Claim
61 words
1 . A method for intravertebral reduction, comprising: accessing a vertebral body; forming an access passage into the vertebral body; delivering an expandable device through the passage into the vertebral body in an unexpanded condition; expanding the expandable device in the vertebral body with an expandable element; removing the expandable element; and placing bone filler material within the expanded expandable device.
Claim 3
Dependent Claim
26 words
2 . The method of claim 1 , wherein accessing the vertebral body includes accessing the vertebral body through at least one pedicle of the vertebra.
Claim 4
Dependent Claim
22 words
3 . The method of claim 1 , wherein accessing the vertebral body includes accessing the vertebral body from a lateral approach.
Claim 5
Dependent Claim
34 words
4 . The method of claim 1 , wherein forming the access passage includes forming the access passage into the vertebral body from a location anterior of posterior vertebral elements of the vertebral body.
Claim 6
Dependent Claim
26 words
5 . The method of claim 1 , wherein forming the access passage includes drilling a hole into the cancellous bony tissue of the vertebral body.
Claim 7
Dependent Claim
22 words
6 . The method of claim 1 , further comprising mounting the expandable device on a distal portion of a delivery instrument.
Claim 8
Dependent Claim
38 words
7 . The method of claim 6 , wherein the distal portion includes the expandable member, and mounting the expandable device includes mounting the expandable device on the expandable element before delivering the expandable device through the passage.
Claim 9
Dependent Claim
18 words
8 . The method of claim 1 , wherein expanding the expandable device includes inflating the expandable element.
Claim 10
Dependent Claim
19 words
9 . The method of claim 8 , further comprising deflating the expandable element before removing the expandable element.
Claim 11
Dependent Claim
30 words
10 . The method of claim 1 , wherein expanding the expandable device includes moving a first portion and a second portion of the expandable device away from one another.
Claim 12
Dependent Claim
18 words
11 . The method of claim 10 , wherein the first portion and second portion are substantially rigid.
Claim 13
Dependent Claim
24 words
12 . The method of claim 11 , wherein the first portion and the second portion include bone engaging features along outer surfaces thereof.
Claim 14
Dependent Claim
70 words
13 . The method of claim 10 , wherein first portion and second portion extend between a proximal end and a distal end of the expandable device, and when expanded the first portion and second portion provide a first height adjacent the distal end and a second height adjacent the proximal end, one of the first and second heights being greater than the other of the first and second heights.
Claim 15
Dependent Claim
19 words
14 . The method of claim 13 , further comprising orienting the greater height anteriorly in the vertebral body.
Claim 16
Dependent Claim
22 words
15 . The method of claim 13 , wherein the first and second portions are tapered between the first and second heights.
Claim 17
Dependent Claim
24 words
16 . The method of claim 13 , wherein the first and second portions include a stepped configuration between the first and second heights.
Claim 18
Dependent Claim
33 words
17 . The method of claim 10 , wherein the first portion and the second portion define a cavity therebetween, and placing bone filler material includes placing bone filler material in the cavity.
Claim 19
Dependent Claim
67 words
18 . The method of claim 1 , wherein the vertebral body includes an anterior portion having a collapsed height between opposite endplates thereof, and expanding the expandable device moves at least one of the opposite endplates away from the other to provide the anterior portion of the vertebral body with a restored height between the opposite endplates, the restored height being greater than the collapsed height.
Claim 20
Dependent Claim
69 words
19 . A method for intravertebral reduction, comprising: accessing a vertebral body; forming an access passage into the vertebral body; delivering an expandable device through the passage into the vertebral body in an unexpanded condition; expanding the expandable device with an expandable element in the expandable device to restore a vertebral body height; removing the expandable element; and maintaining the restored vertebral height device with the expanded expandable device.
Claim 21
Dependent Claim
69 words
19 . A method for intravertebral reduction, comprising: accessing a vertebral body; forming an access passage into the vertebral body; delivering an expandable device through the passage into the vertebral body in an unexpanded condition; expanding the expandable device with an expandable element in the expandable device to restore a vertebral body height; removing the expandable element; and maintaining the restored vertebral height device with the expanded expandable device.
Claim 22
Dependent Claim
19 words
20 . The method of claim 19 , further comprising placing bone filler material in the expanded expandable device.
Claim 23
Dependent Claim
33 words
21 . The method of claim 19 , wherein expanding the expandable device includes positioning the expanding element in a cavity of the expandable device and expanding the expandable element in the cavity.
Claim 24
Dependent Claim
24 words
22 . The method of claim 21 , wherein the expandable element comprises a distal portion of an instrument to deliver the expandable device.
Claim 25
Dependent Claim
18 words
23 . The method of claim 22 , wherein the expandable element includes an interior inflatable with fluid.
Claim 26
Dependent Claim
19 words
24 . The method of claim 19 , wherein expanding the expandable device includes expanding the expandable device uni-directionally.
Claim 27
Dependent Claim
19 words
25 . The method of claim 19 , wherein expanding the expandable device includes expanding the expandable device radially.
Claim 28
Dependent Claim
26 words
26 . The method of claim 19 , wherein accessing the vertebral body includes accessing the vertebral body through at least one pedicle of the vertebra.
Claim 29
Dependent Claim
22 words
27 . The method of claim 19 , wherein accessing the vertebral body includes accessing the vertebral body from a lateral approach.
Claim 30
Dependent Claim
30 words
28 . The method of claim 19 , wherein expanding the expandable device includes moving a first portion and a second portion of the expandable device away from one another.
Claim 31
Dependent Claim
18 words
29 . The method of claim 28 , wherein the first portion and second portion are substantially rigid.
Claim 32
Dependent Claim
73 words
30 . The method of claim 28 , wherein first portion and second portion each extend between a proximal end and a distal end of the expandable device, and when expanded the first portion and second portion are separated by a first height adjacent the distal end and a second height adjacent the proximal end, one of the first and second heights being greater than the other of the first and second heights.
Claim 33
Dependent Claim
21 words
31 . The method of claim 30 , further comprising orienting the end with the greater height anteriorly in the vertebra.
Claim 34
Dependent Claim
67 words
32 . The method of claim 19 , wherein the vertebral body includes an anterior portion having a collapsed height between opposite endplates thereof, and expanding the expandable device moves at least one of the opposite endplates away from the other to provide the anterior portion of the vertebral body with a restored height between the opposite endplates, the restored height being greater than the collapsed height.
Claim 35
Dependent Claim
25 words
33 . The method of claim 19 , wherein forming the access passage includes forming the access passage through a pedicle of the vertebral body.
Claim 36
Dependent Claim
49 words
34 . The method of claim 33 , wherein in the unexpanded condition the expandable device includes a banana shape, and delivering the expandable device includes positioning the expandable device through the access passage and orienting a convexly curved anterior wall of the expandable device anteriorly in the vertebra.
Claim 37
Dependent Claim
64 words
35 . The method of claim 33 , further comprising: forming a second access passage into the vertebral body through a second pedicle; delivering a second expandable device through the passage into the vertebral body in an unexpanded condition and adjacent the expandable device; and expanding the second expandable device with an expandable element in the expandable device to restore a vertebral body height.
Claim 38
Dependent Claim
25 words
36 . The method of claim 19 , wherein the expandable device includes a width which remains substantially constant in the unexpanded and expanded conditions.
Claim 39
Dependent Claim
89 words
37 . A system for intravertebral reduction, comprising: a delivery instrument including an expandable element along a distal portion thereof; and an expandable device including a cavity, the expandable device being removably mountable to the expandable element with the expandable element in the cavity and each of the expandable device and the expandable element in an unexpanded condition, wherein the expandable device is deliverable to an intravertebral space in the unexpanded condition and thereafter expandable with expansion of the expandable element to compress cancellous bone in the intravertebral space.
Claim 40
Dependent Claim
89 words
37 . A system for intravertebral reduction, comprising: a delivery instrument including an expandable element along a distal portion thereof; and an expandable device including a cavity, the expandable device being removably mountable to the expandable element with the expandable element in the cavity and each of the expandable device and the expandable element in an unexpanded condition, wherein the expandable device is deliverable to an intravertebral space in the unexpanded condition and thereafter expandable with expansion of the expandable element to compress cancellous bone in the intravertebral space.
Claim 41
Dependent Claim
24 words
38 . The system of claim 37 , wherein the expandable element includes a balloon structure with an interior for receiving an expansion fluid.
Claim 42
Dependent Claim
26 words
39 . The system of claim 38 , wherein the expansion fluid is selectable from the group consisting of: saline solution, compressed air, and radio-contrast fluid.
Claim 43
Dependent Claim
28 words
40 . The system of claim 38 , wherein the delivery instrument includes a shaft defining a lumen in fluid communication with the interior of the expandable element.
Claim 44
Dependent Claim
39 words
41 . The system of claim 37 , wherein the expandable device includes a first portion and a second portion extending therealong, the first and second portions being movable away from one another upon expansion of the expandable element.
Claim 45
Dependent Claim
24 words
42 . The system of claim 41 , wherein the first and second portions each define an outer surface with bone engagement members therealong.
Claim 46
Dependent Claim
27 words
43 . The system of claim 41 , wherein the first and second portions are uni-directionally movable away from one another upon expansion of the expandable element.
Claim 47
Dependent Claim
60 words
44 . The system of claim 41 , wherein in an expanded configuration the first and second portions include outer surfaces adjacent distal ends thereof separated by a first height and outer surfaces adjacent proximal ends thereof separated by a second height, one of the first and second heights being greater than the other of the first and second heights.
Claim 48
Dependent Claim
20 words
45 . The system of claim 44 , wherein the expandable device is tapered between the first and second heights.
Claim 49
Dependent Claim
22 words
46 . The system of claim 44 , wherein the expandable device includes a stepped configuration between the first and second heights.
Claim 50
Dependent Claim
19 words
47 . The system of claim 41 , wherein the first and second portions include bone growth openings therethrough.
Claim 51
Dependent Claim
23 words
48 . The system of claim 41 , wherein the first and second portions are substantially rigid and the expandable element is non-rigid.
Claim 52
Dependent Claim
31 words
49 . The system of claim 41 , wherein the first and second portions are structured to maintain an expanded configuration after removal of the expandable element from the cavity therebetween.
Claim 53
Dependent Claim
23 words
50 . The system of claim 41 , further comprising bone filler material positionable in the cavity between the first and second portions.
Claim 54
Dependent Claim
18 words
51 . The system of claim 50 , wherein the bone filler material includes bone growth promoting material.
Claim 55
Dependent Claim
24 words
52 . The system of claim 37 , wherein the cavity opens at a distal and at a proximal end of the expandable device.
Claim 56
Dependent Claim
32 words
53 . The system of claim 37 , wherein in the unexpanded condition the expandable device includes a banana shape with a convexly curved anterior wall and a concavely curved posterior wall.
Claim 57
Dependent Claim
29 words
54 . The system of claim 53 , wherein when expanded the expandable device includes a D shape with the anterior wall convexly curved and the posterior wall linear.
Claim 58
Dependent Claim
74 words
55 . A system for intravertebral reduction, comprising: a delivery instrument including a non-rigid expandable element along a distal portion thereof; and an expandable device including a cavity between substantially rigid first and second portions, the expandable device being structure for positioning in an intravertebral space, wherein the expandable element is expandable in the cavity to move the first and second portions away from one another and compress cancellous bone in the intravertebral space.
Claim 59
Dependent Claim
74 words
55 . A system for intravertebral reduction, comprising: a delivery instrument including a non-rigid expandable element along a distal portion thereof; and an expandable device including a cavity between substantially rigid first and second portions, the expandable device being structure for positioning in an intravertebral space, wherein the expandable element is expandable in the cavity to move the first and second portions away from one another and compress cancellous bone in the intravertebral space.
Claim 60
Dependent Claim
24 words
56 . The system of claim 55 , wherein the first and second portions each define an outer surface with bone engagement members therealong.
Claim 61
Dependent Claim
26 words
57 . The system of claim 55 , wherein the first and second portions remain movably engaged with one another during expansion of the expandable element.
Claim 62
Dependent Claim
60 words
58 . The system of claim 55 , wherein in an expanded configuration the first and second portions include outer surfaces adjacent distal ends thereof separated by a first height and outer surfaces adjacent proximal ends thereof separated by a second height, one of the first and second heights being greater than the other of the first and second heights.
Claim 63
Dependent Claim
20 words
59 . The system of claim 58 , wherein the expandable device is tapered between the first and second heights.
Claim 64
Dependent Claim
22 words
60 . The system of claim 58 , wherein the expandable device includes a stepped configuration between the first and second heights.
Claim 65
Dependent Claim
19 words
61 . The system of claim 55 , wherein the first and second portions include bone growth openings therethrough.
Claim 66
Dependent Claim
31 words
62 . The system of claim 55 , wherein the first and second portions are structured to maintain an expanded configuration after removal of the expandable element from the cavity therebetween.
Claim 67
Dependent Claim
23 words
63 . The system of claim 55 , further comprising bone filler material positionable in the cavity between the first and second portions.
Claim 68
Dependent Claim
15 words
64 . The system of claim 55 , wherein the expandable device is radially expandable.
Claim 69
Dependent Claim
30 words
65 . The system of claim 55 , wherein the expandable device includes a width between opposite sides thereof, the width remaining substantially constant in the unexpanded and expanded conditions.
Claim 70
Dependent Claim
32 words
66 . The system of claim 65 , wherein in the unexpanded condition the expandable device includes a banana shape with a convexly curved anterior wall and a concavely curved posterior wall.
Claim 71
Dependent Claim
29 words
67 . The system of claim 66 , wherein when expanded the expandable device includes a D shape with the anterior wall convexly curved and the posterior wall linear.
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