US20140228889A1 - Methods for connecting a longitudinal member to a bone portion - Google Patents
Methods for connecting a longitudinal member to a bone portion Download PDFInfo
- Publication number
- US20140228889A1 US20140228889A1 US14/262,925 US201414262925A US2014228889A1 US 20140228889 A1 US20140228889 A1 US 20140228889A1 US 201414262925 A US201414262925 A US 201414262925A US 2014228889 A1 US2014228889 A1 US 2014228889A1
- Authority
- US
- United States
- Prior art keywords
- housing
- rod
- spacer
- retainer ring
- anchoring member
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7002—Longitudinal elements, e.g. rods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
- A61B17/7037—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other wherein pivoting is blocked when the rod is clamped
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7035—Screws or hooks, wherein a rod-clamping part and a bone-anchoring part can pivot relative to each other
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/84—Fasteners therefor or fasteners being internal fixation devices
- A61B17/86—Pins or screws or threaded wires; nuts therefor
- A61B17/8605—Heads, i.e. proximal ends projecting from bone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/68—Internal fixation devices, including fasteners and spinal fixators, even if a part thereof projects from the skin
- A61B17/70—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant
- A61B17/7001—Screws or hooks combined with longitudinal elements which do not contact vertebrae
- A61B17/7032—Screws or hooks with U-shaped head or back through which longitudinal rods pass
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00526—Methods of manufacturing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49828—Progressively advancing of work assembly station or assembled portion of work
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49947—Assembling or joining by applying separate fastener
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Neurology (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Abstract
An apparatus (10) includes a fastener (16) engageable with a bone portion to connect a longitudinal member (12) to the bone portion. A housing (40) has a first passage (42) configured to receive the longitudinal member (12) and a second passage (44) extending transverse to the first passage. The fastener (16) extends through an opening (50) in the housing (40) into the second passage (44). A longitudinal axis (18) of the fastener (16) is positionable in any one of a plurality of angular positions relative to a longitudinal axis (46) of the second passage (44). A spacer (60) received in the second passage (44) of the housing (40) is engageable with the fastener (16) and the longitudinal member (12). A member (70) applies a force to prevent relative movement between the fastener (16) and the housing (40) and permit manual movement of the fastener (16) relative to the housing (40) against the force when the longitudinal member (12) is disengaged from the spacer (60). A clamping mechanism (90) clamps the longitudinal member (12), the spacer (60), and the housing (40) to the fastener (16) to prevent movement of the fastener relative to the housing.
Description
- This application is a continuation of U.S. application Ser. No. 13/013,257, filed Jan. 25, 2011, which is a continuation of U.S. application Ser. No. 11/415,676, filed May 2, 2006, now U.S. Pat. No. 7,879,075, which is a continuation of U.S. application Ser. No. 10/075,668, filed Feb. 13, 2002, now U.S. Pat. No. 7,066,937, the disclosures of which are incorporated by reference herein in their entirety.
- The present invention relates to an apparatus which is used to retain bone portions, such as vertebrae of a spinal column, in a desired spatial relationship.
- A known apparatus for retaining vertebrae of a spinal column in a desired spatial relationship is disclosed in U.S. Pat. No. 6,280,442. U.S. Pat. No. 6,280,442 discloses an apparatus including a longitudinal member extendable along the spinal column. A fastener engageable with a vertebra of the spinal column connects the longitudinal member to the vertebra. A housing has a first passage through which the longitudinal member extends and a second passage with a longitudinal axis extending transverse to the first passage. The fastener extends through an opening in the housing into the second passage. The longitudinal axis of the fastener is positionable in any one of a plurality of angular positions relative to the longitudinal axis of the second passage.
- A spacer received in the housing is engageable with the fastener and the longitudinal member. A clamping member threadably engages the housing to clamp the longitudinal member, the spacer, and the housing to the fastener to prevent movement of the fastener relative to the housing. When the longitudinal member is disengaged from the spacer, the housing may not remain in position relative to the fastener until the longitudinal member is clamped to the spacer. Accordingly, the housing must be held in position relative to the fastener by a surgeon while the longitudinal member is clamped to the spacer.
- The present invention is an apparatus which is used to retain bone portions in a desired spatial relationship. The apparatus includes a longitudinal member connectable with a bone portion. A fastener having a longitudinal axis is engageable with the bone portion to connect the longitudinal member to the bone portion. A housing has a first passage configured to receive the longitudinal member. The housing has a second passage with a longitudinal axis extending transverse to the first passage. The fastener extends through an opening in the housing into the second passage and is movable relative to the housing. The longitudinal axis of the fastener is positionable in any one of a plurality of angular positions relative to the longitudinal axis of the second passage.
- A spacer received in the second passage of the housing is engageable with the fastener and the longitudinal member. A member applies a force to prevent relative movement between the fastener and the housing when the longitudinal member is disengaged from the spacer and the spacer engages the fastener. The fastener and the housing are manually movable relative to each other against the force when the longitudinal member is disengaged from the spacer and the member applies the force. A clamping mechanism clamps the longitudinal member, the spacer, and the housing to the fastener to prevent movement of the fastener relative to the housing. Accordingly, the housing and the fastener can be positioned relative to each other and the member will hold the fastener and the housing in the relative positions before the longitudinal member is connected to the housing.
- The foregoing and other features of the present invention will become apparent to one skilled in the art to which the present invention relates upon consideration of the following description of the invention with reference to the accompanying drawings, wherein:
-
FIG. 1 is a perspective view of an apparatus constructed in accordance with the present invention with portions removed for clarity; -
FIG. 2 is a sectional view of the apparatus ofFIG. 1 ; -
FIG. 3 is a part sectional view of the apparatus ofFIG. 1 ; -
FIG. 4 is an enlarged sectional view of a portion of the apparatus ofFIG. 1 ; -
FIG. 5 is a plan view of a spring member of the apparatus ofFIG. 1 ; and -
FIG. 6 is a side view of the spring member. - The present invention is directed to an apparatus for retaining bone portions, such as vertebrae of a spinal column, in a desired spatial relationship.
FIGS. 1-4 illustrate anapparatus 10 constructed according to the present invention. Theapparatus 10 includes a surgically implantable longitudinal member orrod 12 for maintaining bone portions, such as vertebrae of a spinal column, in a desired spatial relationship. Themember 12 is connected with vertebrae of the spinal column byfasteners 16. - The
rod 12 is made of a suitable biocompatible material and has a length which is at least sufficient to enable the rod to span at least two vertebrae. Of course, the length of therod 12 in any particular installation will depend upon the condition to be corrected and the number of vertebrae to be held in a desired spatial relationship relative to each other by the rod. - The rod 12 (
FIGS. 1-3 ) is connected to a respective vertebra by thefastener 16 made of a suitable biocompatible material. Thefastener 16 has alongitudinal axis 18 and a threadedend portion 22 having acourse thread convolution 24 which engages the vertebra. Asecond end portion 26 of thefastener 16 is provided with a first partspherical surface 28. Thesecond end portion 26 of thefastener 16 also includes a second partspherical surface 30 having a diameter less than a diameter of the first partspherical surface 28. A radially extendingshoulder 31 extends between the partspherical surfaces FIG. 2 ) is provided on theend portion 26 of thefastener 16. The recess 32 receives a tool (not shown) that applies torque to thefastener 16 to turn thethread convolution 24 into the vertebra. - The fastener 16 (
FIGS. 1-4 ) extends into ahousing 40 that interconnects therod 12 and thefastener 16. The housing 40 (FIG. 2 ) has afirst passage 42 through which therod 12 extends. Thehousing 40 has asecond passage 44 with alongitudinal axis 46 that extends transverse to thefirst passage 42. Thefastener 16 extends through an opening 50 in thehousing 40 and into thesecond passage 44. The first partspherical surface 28 of thefastener 16 engages a concave partspherical surface 52 of thehousing 40. Accordingly, thefastener 16 is universally pivotable relative to thehousing 40 so that thelongitudinal axis 18 of thefastener 16 is positionable in any one of a plurality of angular positions relative to thelongitudinal axis 46 of thepassage 44. - A
spacer 60 is housed in thesecond passage 44 of thehousing 40. The spacer 60 (FIGS. 2-4 ) has a concave partspherical surface 62 that engages the partspherical surface 30 of thefastener 16. Theshoulder 31 on thefastener 16 is engageable with thespacer 60 to limit the relative movement between the fastener and thehousing 40. Thespacer 60 also has a concave partcylindrical surface 64 that engages therod 12. Thespacer 60 has anopening 66 through which the tool (not shown) extends to engage the recess 32 in thefastener 16. The tool extends through theopening 66 to apply torque to thefastener 16 and connect the fastener to the vertebra. - The spacer 60 (
FIG. 4 ) has acircumferential groove 68 for receiving a compressible member such as aspring member 70. Thegroove 68 is defined by an axially extending cylindrical surface 71. An upper surface 72 extends radially outward from the cylindrical surface 71. A lower surface 74 extends radially outward from the cylindrical surface 71 and generally parallel to the upper surface 72. - The
housing 40 includes acircumferential groove 76 for receiving thespring member 70 so that the spring member extends from thegroove 68 in thespacer 60 to the groove in the housing. Thegroove 76 is defined by an axially extending cylindrical surface 78. An upper surface 80 extends radially inward from the cylindrical surface 78. Alower surface 82 extends radially inward from the cylindrical surface 78 and generally parallel to the upper surface 80. - The spring member 70 (
FIGS. 5 and 6 ) is a ring having agap 82. Thegap 82 permits thespring member 70 to radially contract and expand. Thespring member 70 has an arched shape, as viewed inFIG. 6 , when thespring member 70 is disengaged from thespacer 60 and thehousing 40. When thespring member 70 is received in thegrooves 68 and 76 (FIG. 4 ), the spring member engages the lower surface 74 on thespacer 60 and the upper surface 80 on thehousing 40. - The
spring member 70 applies an axial force to thespacer 60 to prevent relative movement between thefastener 16 and thehousing 40 when therod 12 is disengaged from the spacer and the spacer engages the fastener. Thespring member 70 urges thespacer 60 axially toward thefastener 16 and the partspherical surface 52 of thehousing 40 against the partspherical surface 28 of the fastener. The partspherical surface 62 of thespacer 60 frictionally engages the partspherical surface 30 of thefastener 16 and the partspherical surface 28 of the fastener frictionally engages the partspherical surface 52 of thehousing 40. Thefastener 16 and thehousing 40 are manually movable relative to each other by a surgeon when therod 12 is disengaged from thespacer 60 and thespring member 70 applies the axial force. The force applied by thespring member 70 may be overcome by the surgeon to move thehousing 40 relative to thefastener 16. Accordingly, thehousing 40 can be positioned relative to thefastener 16 and held in position relative to the fastener by thespring member 70 without therod 12 engaging thespacer 60. It is contemplated that any compressible member could be used to apply the force to thefastener 16 to prevent relative movement between the fastener and thehousing 40 when therod 12 is disengaged from thespacer 60. - The
spacer 60 has four axially extendingslots 86, one of which is shown inFIG. 1 . Theslots 86 intersect thegroove 68. A tool (not shown) has four prongs that extend through theslots 86 and into engagement with thespring member 70. The tool grasps thespacer 60 and thespring member 70 for inserting the spacer and the spring member into thehousing 40. The prongs of the tool engage thespring member 70 to radially contract the spring member into thegroove 68 in thespacer 60. The prongs hold thespring member 70 in the radially contracted condition in thegroove 68 while thespacer 60 and spring member are being inserted into thehousing 40. Once thespacer 60 engages thefastener 16, the prongs are removed from theslots 86 and thespring member 70 radially expands into the groove 71 in thehousing 40. Although thespacer 60 is described as having fourslots 86, the spacer could have any number of slots and the tool would have the same number of prongs as the spacer has slots. - A clamping mechanism or set screw 90 (
FIGS. 1-4 ) threadably engages thehousing 40. Theset screw 90 and thehousing 40 have a German standard DIN513 buttress thread. It is contemplated that theset screw 90 and thehousing 40 could have any desired thread formation. Theset screw 90 engages and applies a force to therod 12 to press the rod against thespacer 60 and the spacer against thefastener 16. Theset screw 90 clamps therod 12, thespacer 60, and thehousing 40 to thefastener 16 to prevent movement of the fastener relative to the housing. The force applied by theset screw 90 cannot be overcome by the surgeon to move thehousing 40 relative to thefastener 16. - The
apparatus 10 is assembled by inserting thefastener 16 through theopening 50 in thehousing 40 so that the partspherical surface 28 of the fastener engages the partspherical surface 52 of the housing. Thespacer 60 and thespring member 70 are inserted into thehousing 40 by radially compressing the spring member into thegroove 68 in the spacer. Thespacer 60 and thespring member 70 are inserted into thesecond passage 44 until the partspherical surface 62 of the spacer engages the partspherical surface 30 of thefastener 16. Thespring member 70 is released and expands radially into thegroove 76 in thehousing 40. - A tool is inserted through the
opening 66 in thespacer 60 and into the recess 32 in thefastener 16. Torque is applied to thefastener 16 to turn thethread convolution 24 into the vertebra. Once thefastener 16 is connected with the vertebra, thehousing 40 can be positioned relative to the fastener. Thespring member 70 maintains the position of thehousing 40 relative to thefastener 16 while therod 12 is disengaged from thespacer 60. Once thehousing 40 is positioned relative to thefastener 16, therod 12 is placed into thepassage 42 and in engagement with thespacer 60. Theset screw 90 is threaded into thehousing 40 and into engagement with therod 12. Theset screw 90 clamps therod 12, thespacer 60, and thehousing 40 to thefastener 16 to prevent movement of the fastener relative to the housing. Alternatively, thefastener 16 may be connected to the vertebra prior to thespacer 60 and thespring member 70 being inserted into thehousing 40. - From the above description of the invention, those skilled in the art will perceive improvements, changes and modifications. Such improvements, changes and modifications within the skill of the art are intended to be covered by the appended claims.
Claims (18)
1. An apparatus for connecting a rod with a bone portion, comprising:
an anchoring member having a threaded portion and a head;
a housing having a lower portion and an upper portion, the lower portion having an opening allowing only the threaded portion of the anchoring member to pass through and a socket for receipt of the head, the upper portion having an opening for receipt of the rod, the housing having a spring pocket formed therein;
a retainer ring disposed between the lower portion and the upper portion of the housing, the retainer ring having a lower spherical surface positionable along an upper surface of the head and a concave upper surface configured to engage the rod; and
a biasing element having a first proximally facing surface positionable in and contacting a surface the spring pocket of the housing and a second distally facing surface contacting a surface of the retainer ring, the biasing element applying a force upon the retainer ring which exerts a force upon the anchoring member head which exerts a force on an engagement surface of the socket of the housing; and
a fastener element securable to the upper portion of the housing for engaging the rod;
wherein the housing is configured to be moved into a predetermined position relative to said anchoring member head and maintain the predetermined position under the force exerted by the biasing element with the fastener element traversable between an unlocked position and a locked position for controlling movement of the housing relative to the anchoring member in any one of a plurality of angular positions.
2. The apparatus of claim 1 , wherein said biasing element is an axially compressible member.
3. The apparatus of claim 1 , wherein said biasing element is a spring member.
4. The apparatus of claim 1 , wherein the upper portion of the housing includes a substantially U-shaped opening sized to accept said rod, wherein said concave upper surface of said retainer ring extends into said U-shaped opening.
5. The apparatus of claim 1 , wherein said housing includes an internal thread, and said fastener element is a set screw engageable with said internal thread.
6. The apparatus of claim 1 , wherein the biasing element positioned within the spring pocket limits proximal movement of the retainer ring and anchoring member.
7. An apparatus for connecting a rod with a bone portion, comprising:
an anchoring member having a shank and a head;
a housing having a lower portion and an upper portion, the lower portion having an opening allowing only the shank to pass through and a socket for receipt of the head, the socket configured to receive the head in a variety of angular positions, the upper portion of the housing having a spring pocket formed therein;
a retainer ring received in said housing and having a lower surface positionable along an upper surface of the head of the anchoring member and a concave upper surface configured to engage the rod;
a spring member positionable in said spring pocket, the spring member having an upper surface in contact with an upper surface of said spring pocket and a lower surface in contact with a surface of the retainer ring; and
a fastener element securable to said upper portion of said housing for engaging the rod;
wherein the spring member is configured to apply a force onto the surface of the retainer ring, biasing the retainer ring towards the anchoring member, thereby holding a longitudinal axis of said anchoring member in any one of a plurality of desired angular positions relative to a longitudinal axis of said housing when said rod is disengaged from said retainer ring and said retainer ring engages said anchoring member head, said retainer ring and said housing being manually movable relative to each other against said force when said rod is disengaged from said retainer ring and said spring member applies said force.
8. The apparatus of claim 7 , wherein said spring member is axially compressible.
9. The apparatus of claim 7 , wherein the housing includes a substantially U-shaped opening sized to accept said rod, wherein the concave upper surface of said retainer ring extends into said U-shaped opening.
10. The apparatus of claim 7 , wherein said housing includes an internal thread, and said fastener element is a threaded compression element engageable with said internal thread.
11. The apparatus of claim 7 , wherein the spring member positioned within the housing pocket limits proximal movement of the retainer ring and anchoring member.
12. An apparatus for connecting a rod with a bone portion, comprising:
an anchoring member having a longitudinal axis and engageable with the bone portion to connect said rod to the bone portion, the anchoring member having a shaft and a connector;
a housing having a lower portion and an upper portion, said lower portion having an opening through which only the shaft is extendable and a seat surrounding the opening for receiving the connector, the housing having a pocket formed therein;
a spacer positionable in said housing and engageable with said anchoring member and said rod; and
a biasing member positionable within the pocket between the housing and spacer;
wherein when the biasing member is disposed within the pocket, a proximal surface of the biasing member contacts an upper surface of the pocket, thereby limiting proximal movement of the spacer and anchoring member, and a distal surface of the biasing member applies a force biasing the spacer towards the anchoring member, thereby holding a longitudinal axis of said anchoring member in any one of a plurality of desired angular positions relative to a longitudinal axis of said housing when said rod is disengaged from said spacer and said spacer engages said anchoring member, said anchoring member and said housing being manually movable relative to each other against said force when said rod is disengaged from said spacer and said biasing member applies said force.
13. The apparatus of claim 12 , wherein said biasing member is an axially compressible member.
14. The apparatus of claim 12 , wherein said biasing member is a spring.
15. The apparatus of claim 12 , wherein the housing includes a substantially U-shaped opening sized to accept said rod, wherein said spacer includes a concave upper surface configured to receive said rod, said concave upper surface extending into said U-shaped opening.
16. The apparatus of claim 12 , wherein said housing includes an internal thread, and said apparatus further includes a threaded compression element engageable with said internal thread.
17. The apparatus of claim 12 , wherein said shaft includes a helical thread.
18. The apparatus of claim 12 , wherein the connector includes a spherical surface and the spacer has a lower spherical surface configured to match the spherical surface of the connector.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/262,925 US20140228889A1 (en) | 2002-02-13 | 2014-04-28 | Methods for connecting a longitudinal member to a bone portion |
US14/445,552 US8936624B2 (en) | 2002-02-13 | 2014-07-29 | Methods for connecting a longitudinal member to a bone portion |
US14/812,862 US9848913B2 (en) | 2002-02-13 | 2015-07-29 | Methods for connecting a longitudinal member to a bone portion |
US15/821,309 US10219835B2 (en) | 2002-02-13 | 2017-11-22 | Systems and devices for connecting a longitudinal member to a bone portion |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/075,668 US7066937B2 (en) | 2002-02-13 | 2002-02-13 | Apparatus for connecting a longitudinal member to a bone portion |
US11/415,676 US7879075B2 (en) | 2002-02-13 | 2006-05-02 | Methods for connecting a longitudinal member to a bone portion |
US13/013,257 US8709050B2 (en) | 2002-02-13 | 2011-01-25 | Methods for connecting a longitudinal member to a bone portion |
US14/262,925 US20140228889A1 (en) | 2002-02-13 | 2014-04-28 | Methods for connecting a longitudinal member to a bone portion |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/013,257 Continuation US8709050B2 (en) | 2002-02-13 | 2011-01-25 | Methods for connecting a longitudinal member to a bone portion |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/445,552 Continuation US8936624B2 (en) | 2002-02-13 | 2014-07-29 | Methods for connecting a longitudinal member to a bone portion |
US14/812,862 Continuation US9848913B2 (en) | 2002-02-13 | 2015-07-29 | Methods for connecting a longitudinal member to a bone portion |
Publications (1)
Publication Number | Publication Date |
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US20140228889A1 true US20140228889A1 (en) | 2014-08-14 |
Family
ID=37495108
Family Applications (6)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/415,676 Expired - Fee Related US7879075B2 (en) | 2002-02-13 | 2006-05-02 | Methods for connecting a longitudinal member to a bone portion |
US13/013,257 Expired - Fee Related US8709050B2 (en) | 2002-02-13 | 2011-01-25 | Methods for connecting a longitudinal member to a bone portion |
US14/262,925 Abandoned US20140228889A1 (en) | 2002-02-13 | 2014-04-28 | Methods for connecting a longitudinal member to a bone portion |
US14/445,552 Expired - Fee Related US8936624B2 (en) | 2002-02-13 | 2014-07-29 | Methods for connecting a longitudinal member to a bone portion |
US14/812,862 Expired - Fee Related US9848913B2 (en) | 2002-02-13 | 2015-07-29 | Methods for connecting a longitudinal member to a bone portion |
US15/821,309 Expired - Fee Related US10219835B2 (en) | 2002-02-13 | 2017-11-22 | Systems and devices for connecting a longitudinal member to a bone portion |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/415,676 Expired - Fee Related US7879075B2 (en) | 2002-02-13 | 2006-05-02 | Methods for connecting a longitudinal member to a bone portion |
US13/013,257 Expired - Fee Related US8709050B2 (en) | 2002-02-13 | 2011-01-25 | Methods for connecting a longitudinal member to a bone portion |
Family Applications After (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/445,552 Expired - Fee Related US8936624B2 (en) | 2002-02-13 | 2014-07-29 | Methods for connecting a longitudinal member to a bone portion |
US14/812,862 Expired - Fee Related US9848913B2 (en) | 2002-02-13 | 2015-07-29 | Methods for connecting a longitudinal member to a bone portion |
US15/821,309 Expired - Fee Related US10219835B2 (en) | 2002-02-13 | 2017-11-22 | Systems and devices for connecting a longitudinal member to a bone portion |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9848913B2 (en) | 2002-02-13 | 2017-12-26 | Zimmer Spine, Inc. | Methods for connecting a longitudinal member to a bone portion |
US10219835B2 (en) | 2002-02-13 | 2019-03-05 | Zimmer Spine, Inc. | Systems and devices for connecting a longitudinal member to a bone portion |
US10610265B1 (en) | 2017-07-31 | 2020-04-07 | K2M, Inc. | Polyaxial bone screw with increased angulation |
US11229459B2 (en) | 2017-07-31 | 2022-01-25 | K2M, Inc. | Polyaxial bone screw with increased angulation |
Also Published As
Publication number | Publication date |
---|---|
US20140336714A1 (en) | 2014-11-13 |
US9848913B2 (en) | 2017-12-26 |
US20180092664A1 (en) | 2018-04-05 |
US20060276791A1 (en) | 2006-12-07 |
US8936624B2 (en) | 2015-01-20 |
US8709050B2 (en) | 2014-04-29 |
US7879075B2 (en) | 2011-02-01 |
US10219835B2 (en) | 2019-03-05 |
US20110118793A1 (en) | 2011-05-19 |
US20150327888A1 (en) | 2015-11-19 |
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Legal Events
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |