Patent GB2020557B successfully refreshed from Google Patents.
US20070173939A1
Active / In Force
US
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Systems and methods for fixation of bone with an expandable device
Assignee: Leland Stanford Junior University
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Filing: 2006-12-11
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Granted: —
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Expires: 2026-12-11
Abstract
Abstract Apparatus, systems and methods for providing fixation to an interior body region of a patient are provided. The apparatus includes an expandable cage which is inserted into a body region, such as cancellous bone of a vertebra, in a first geometry, and transitioned to a second geometry. Delivery devices and other tools are included including a material delivery device used to inject an agent into a body region without requiring or creating a void in that region. Methods are also provided for providing fixation to an internal body region.
Inventors
- 👤 Daniel Kim
- 👤 J. Flaherty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:41
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/16; A61B17/1613; A61B17/1633; A61B17/1662; A61B17/1671; A61B17/56; A61B17/58; A61B17/88; A61B17/885; A61B17/8852; A61B17/8858; A61B10/00; A61B10/02; A61B10/0233; A61B10/025; A61B10/0283; A61B17/1644; A61B17/1646; A61B17/68; A61B17/70; A61B17/7097; A61B17/7098; A61B2217/00; A61B2217/002; A61B2217/005
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
127 words
1 . An apparatus for providing fixation of an interior body region of a patient, said apparatus comprising: an expandable cage comprising: a proximal ring; a distal ring; and a plurality of elongate members, each elongate member including a proximal end, a distal end and a middle portion therebetween, wherein each proximal end is fixedly attached to the proximal ring of the expandable cage and each distal end is fixedly attached to the distal ring of the expandable cage; wherein the plurality of elongate members are transitionable from a first geometry with the plurality of the middle portions defining a first area to a second geometry with the plurality of middle portions defining a second area; and wherein the second area is larger than the first area.
Claim 2
Dependent Claim
127 words
1 . An apparatus for providing fixation of an interior body region of a patient, said apparatus comprising: an expandable cage comprising: a proximal ring; a distal ring; and a plurality of elongate members, each elongate member including a proximal end, a distal end and a middle portion therebetween, wherein each proximal end is fixedly attached to the proximal ring of the expandable cage and each distal end is fixedly attached to the distal ring of the expandable cage; wherein the plurality of elongate members are transitionable from a first geometry with the plurality of the middle portions defining a first area to a second geometry with the plurality of middle portions defining a second area; and wherein the second area is larger than the first area.
Claim 3
Dependent Claim
18 words
2 . The apparatus of claim 1 wherein the first area or the second area approximate a circle.
Claim 4
Dependent Claim
18 words
3 . The apparatus of claim 1 wherein the first area or the second area approximate a rectangle.
Claim 5
Dependent Claim
18 words
4 . The apparatus of claim 1 wherein the first area or the second area approximate an oval.
Claim 6
Dependent Claim
27 words
5 . The apparatus of claim 1 wherein the expandable cage is configured to provide structural reinforcement of an interior body region when in the second geometry.
Claim 7
Dependent Claim
5 words
6 .- 132 . (canceled)
Claim 8
Dependent Claim
5 words
6 .- 132 . (canceled)
Claim 9
Dependent Claim
95 words
133 . A method of manufacturing an expandable cage for placement into an interior body region of a patient comprising: creating a hollow tube with a proximal end and a distal end; and creating multiple slots that extend from a point distal said tube proximal end and proximal to said tube distal end, said slots creating a plurality of elongate members each with a middle portion; wherein the plurality of middle portions are expandable from a first geometry defining a first area to a second geometry defining a second area greater than the first area.
Claim 10
Dependent Claim
95 words
133 . A method of manufacturing an expandable cage for placement into an interior body region of a patient comprising: creating a hollow tube with a proximal end and a distal end; and creating multiple slots that extend from a point distal said tube proximal end and proximal to said tube distal end, said slots creating a plurality of elongate members each with a middle portion; wherein the plurality of middle portions are expandable from a first geometry defining a first area to a second geometry defining a second area greater than the first area.
Claim 11
Dependent Claim
18 words
134 . The method of claim 133 wherein the first area or the second area approximates a circle.
Claim 12
Dependent Claim
18 words
135 . The method of claim 133 wherein the first area or the second area approximates a rectangle.
Claim 13
Dependent Claim
18 words
136 . The method of claim 133 wherein the first area or the second area approximates a oval.
Claim 14
Dependent Claim
16 words
137 . The method of claim 133 wherein the tube is created with an extrusion operation.
Claim 15
Dependent Claim
5 words
138 .- 174 . (canceled)
Claim 16
Dependent Claim
5 words
138 .- 174 . (canceled)
Claim 17
Dependent Claim
54 words
175 . A method of providing fixation to an interior body region of a patient, said method comprising: providing the apparatus of claim 1; inserting the apparatus into the interior body region of the patient; and causing the elongate members of the expandable cage to transition from the first geometry to the second geometry.
Claim 18
Dependent Claim
20 words
176 . The method of claim 175 wherein the interior body region is a fractured or impending fracture bone segment.
Claim 19
Dependent Claim
18 words
177 . The method of claim 175 wherein the interior body region is a segment of osteoporotic bone.
Claim 20
Dependent Claim
24 words
178 . The method of claim 175 wherein the interior body region is a portion of a bone in a limb of the patient.
Claim 21
Dependent Claim
23 words
179 . The method of claim 175 wherein the interior body region is a cancellous bone portion of a vertebra of the patient.
Claim 22
Dependent Claim
5 words
180 .- 189 . (canceled)
Claim 23
Dependent Claim
5 words
180 .- 189 . (canceled)
Claim 24
Dependent Claim
112 words
190 . A device for placing material into an interior body region of a patient comprising: an elongate tube with a proximal end and a distal end; a body material pulverizing assembly deployable from the distal end of the elongate tube and configured to contact and pulverize material proximate said distal end; a vacuum assembly configured to remove the pulverized body material from the interior body region; and an agent delivery assembly configured to deliver an agent to the interior body region in the space previously occupied by the pulverized material; wherein the agent is placed into the interior body region prior to a void being created in said interior body region.
Claim 25
Dependent Claim
112 words
190 . A device for placing material into an interior body region of a patient comprising: an elongate tube with a proximal end and a distal end; a body material pulverizing assembly deployable from the distal end of the elongate tube and configured to contact and pulverize material proximate said distal end; a vacuum assembly configured to remove the pulverized body material from the interior body region; and an agent delivery assembly configured to deliver an agent to the interior body region in the space previously occupied by the pulverized material; wherein the agent is placed into the interior body region prior to a void being created in said interior body region.
Claim 26
Dependent Claim
19 words
191 . The device of claim 190 wherein the elongate tube is rigid along a majority of its length.
Claim 27
Dependent Claim
19 words
192 . The device of claim 190 wherein the elongate tube is flexible along a majority of its length.
Claim 28
Dependent Claim
20 words
193 . The device of claim 190 wherein the elongate tube includes at least one hinged portion along its length.
Claim 29
Dependent Claim
21 words
194 . The device of claim 190 wherein the elongate tube distal end is configured to be deflected by an operator.
Claim 30
Dependent Claim
5 words
195 .- 212 . (canceled)
Claim 31
Dependent Claim
5 words
195 .- 212 . (canceled)
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