CA2474388A1 - External fixation system - Google Patents

External fixation system Download PDF

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Publication number
CA2474388A1
CA2474388A1 CA002474388A CA2474388A CA2474388A1 CA 2474388 A1 CA2474388 A1 CA 2474388A1 CA 002474388 A CA002474388 A CA 002474388A CA 2474388 A CA2474388 A CA 2474388A CA 2474388 A1 CA2474388 A1 CA 2474388A1
Authority
CA
Canada
Prior art keywords
capture
component according
fixation
capture member
connector
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.)
Granted
Application number
CA002474388A
Other languages
French (fr)
Other versions
CA2474388C (en
Inventor
Joseph Ferrante
Anthony James
David Castleman
Ed Austin
Kenneth Nelson
Kelley Grusin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Smith and Nephew Inc
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US10/067,052 external-priority patent/US7048735B2/en
Application filed by Individual filed Critical Individual
Publication of CA2474388A1 publication Critical patent/CA2474388A1/en
Application granted granted Critical
Publication of CA2474388C publication Critical patent/CA2474388C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
    • A61B17/64—Devices extending alongside the bones to be positioned
    • A61B17/645—Devices extending alongside the bones to be positioned comprising a framework
    • 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
    • A61B17/60—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 for external osteosynthesis, e.g. distractors, contractors
    • A61B17/64—Devices extending alongside the bones to be positioned
    • A61B17/6466—Devices extending alongside the bones to be positioned with pin-clamps movable along a solid connecting rod
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/50—Supports for surgical instruments, e.g. articulated arms
    • A61B90/57—Accessory clamps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/36—Image-producing devices or illumination devices not otherwise provided for
    • A61B2090/364—Correlation of different images or relation of image positions in respect to the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/39—Markers, e.g. radio-opaque or breast lesions markers
    • A61B2090/3983—Reference marker arrangements for use with image guided surgery
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • A61B90/10—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges for stereotaxic surgery, e.g. frame-based stereotaxis
    • A61B90/14—Fixators for body parts, e.g. skull clamps; Constructional details of fixators, e.g. pins
    • 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
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/44—Clasp, clip, support-clamp, or required component thereof
    • Y10T24/44291—Clasp, clip, support-clamp, or required component thereof including pivoted gripping member
    • Y10T24/44299—Pivoted member also slides
    • 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
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/44—Clasp, clip, support-clamp, or required component thereof
    • Y10T24/44291—Clasp, clip, support-clamp, or required component thereof including pivoted gripping member
    • Y10T24/44333—Clasp, clip, support-clamp, or required component thereof including pivoted gripping member having toggle operator for moving
    • 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
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/44—Clasp, clip, support-clamp, or required component thereof
    • Y10T24/44291—Clasp, clip, support-clamp, or required component thereof including pivoted gripping member
    • Y10T24/44496—Clasp, clip, support-clamp, or required component thereof including pivoted gripping member with operator means for moving pivoted member
    • Y10T24/44513—Camming or wedging element

Abstract

An external fixation system having a fixation component (20) comprising: a) a first capture member (24) adapted to capture a second element (26) of an orthopedic fixation system; and (b) a second capture member (22) adapted to capture a second element (28) of an orthopedic fixation system and coupled t o the first capture member such that the coupling (86,94,110) allows the first capture member and the second capture member to rotate about three axes relative to each other element and move along that axis; wherein the couplin g is adapted to secure the first and the second capture members from rotation with an activation (100); and wherein the second capture member is adapted t o capture the second element by snapping onto the second element from substantially perpendicular to longitudinal axis of the second element.</SDO AB>

Claims (30)

1. ~An external fixation component comprising:
(a) a first capture member adapted to capture a first element of an orthopedic fixation system; and (b) a second capture member adapted to capture a second element of an orthopedic fixation system and coupled to the first capture member such that the coupling allows the first capture member and the second capture member to rotate about three axes relative to each other and the second capture member to rotate about one axis of the second element and move along that axis;
wherein the coupling is adapted to secure the first and second capture members from rotation with an activation; and wherein the second capture member is adapted to capture the second element by snapping onto the second element from substantially perpendicular to the longitudinal axis of the second element.
2. ~A component according to claim 1, wherein the activation also secures the second member from rotating about and moving along the axis of the second element.
3. ~A component according to claims 1 or 2, wherein the first capture member is adapted to capture the first fixation element by snapping onto the first fixation element from substantially perpendicular to the longitudinal axis of the first fixation element.
4. ~A component according to any of claims 1-3, wherein the coupling comprises at least one ball and socket joint and the activation applies tension to a connector that links the first and second capture members.
5. ~A component according to claim 4, wherein the coupling is adapted to apply tension to the connector in an adjustable fashion.
6. ~A component according to claim 4, wherein the ball and socket joints share substantially the same center of rotation.
7. ~A component according to any of claims 1-3, wherein one capture member may be locked while the other capture member is capable of rotation.
8. ~A component according to any of claims 1-3, wherein each capture member further comprises a base and a head movably coupled to the base, wherein the movement of the head occurs substantially in a plane such that when the head is moved to a first position a fixation element may be placed in a location to be captured between the base and the head, and when the head is moved to a second position the fixation element is captured between the base and the head.
9. ~A component according to claim 8, wherein at least a portion of the movement between the head and the base is sliding movement.
10. ~A component according to claim 8, wherein the head is biased toward the second position.
11. ~A component according to claim 8, wherein the head of each of the capture members further comprises a wedge and the base of each of the capture members further comprises a groove.
12. ~A component according to claim 11, wherein the wedge and groove of each capture member form a channel adapted to receive a fixation element.
13. ~A component according to claim 8, further comprising:
a connector;
internal threads in an aperture of the base of the first capture member, wherein the aperture is adapted to receive a first fastener;
a first fastener comprising a threaded end adapted to mate with the internal threads of the base;
a biasing member adjacent an end of the connector and wherein the threaded end of the first fastener is adjacent the biasing member; and threads on a second portion of the connector adapted to mate with threads on a second fastener.
14. A component according to claim 13, wherein tightening the first fastener locks the first capture member and tightening the second fastener locks the second capture member.
15. A component according to any of claims 1-3, wherein each capture member is adapted to receive a bar, a pin, a wire, or at least a partial ring.
16. A component according to any of claim 1-3, wherein one capture member is adapted to receive a bar and the other capture member is adapted to receive a wire, a pin, or at least a partial ring.
17. A component according to any of claims 1-3, wherein:
the first capture member comprises a planetary member having inner and outer surfaces and includes an aperture adapted to receive a connector;
and the second capture member comprises a cooperating surface adapted to receive and correspond generally in shape with the outer surface of the planetary member and includes an aperture adapted to receive a connector.
18. A component according to claim 17, further comprising a connector including a first portion that corresponds generally in shape to and is adapted to be received in the inner surface of the planetary member, and a second portion adapted to extend through the aperture in the cooperating surface of the second capture member;
wherein when the first portion of the connector is urged against the inner surface of the planetary member and locked, and the outer surface of the planetary member is urged against the cooperating surface and locked, the fixation components are oriented and locked in position relative to each other, and wherein when unlocked, each capture member is able to rotate about more than one axis relative to the other capture member.
19. A component according to claim 18, wherein the first portion of the connector comprises a generally spherical end and the second portion of the connector comprises a shaft.
20. A component according to claim 18, wherein the connector further comprises a key adapted to be received in a slot in the second capture member.
21. A component according to claim 18, further comprising a biasing member adjacent the first portion of the connector.
22. A component according to claim 18, wherein the planetary member and cooperating surface are generally spherical.
23. A component according to claim 18, wherein the inner surface of the planetary member and the cooperating surface are tapered.
24. A component according to claim 18, wherein the planetary member and the cooperating surface are textured.
25. An external fixation system comprising a component according to any of claims 1-3 and a plurality of fixation elements.
26. A system according to claim 25, wherein the fixation elements comprise at least one bar, at least one pin, at least one wire, or at least one at least partial ring.
27. An external fixation device comprising a component according to any of claims 1-3.
28. A method of treating a skeletal condition or injury using an external fixation system, the method comprising:
(a) inserting a first fixation element into a bone;

(b) capturing the first fixation element in a first fixation component by snapping onto the first fixation element from substantially perpendicular to the longitudinal axis of the first fixation element, the first fixation component comprising:
(i) a first capture member adapted to capture an element of an orthopedic fixation system; and (ii) a second capture member adapted to capture an element of an orthopedic fixation system and coupled to the first capture member such that the coupling allows the first capture member and the second capture member to rotate about three axes relative to each other;
wherein the coupling is adapted to secure the first and second capture members from rotation with a single activation;
(c) capturing a second fixation element in the first fixation component by snapping onto the second fixation element from substantially perpendicular to the longitudinal axis of the second fixation element; and (d) engaging the single activation to secure the first and second capture members from rotation.
29. The method of claim 28, further comprising joining one of the first fixation element or the second fixation element to a second component, forming a frame.
30. The method of claim 29, further comprising adjusting the frame by loosening one capture member of any fixation component and moving the frame.
CA2474388A 2002-02-04 2003-01-30 External fixation system Expired - Fee Related CA2474388C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US10/067,052 2002-02-04
US10/067,052 US7048735B2 (en) 2002-02-04 2002-02-04 External fixation system
US10/172,654 2002-06-14
US10/172,654 US7004943B2 (en) 2002-02-04 2002-06-14 Devices, systems, and methods for placing and positioning fixation elements in external fixation systems
PCT/US2003/002712 WO2003065911A1 (en) 2002-02-04 2003-01-30 External fixation system

Publications (2)

Publication Number Publication Date
CA2474388A1 true CA2474388A1 (en) 2003-08-14
CA2474388C CA2474388C (en) 2011-08-09

Family

ID=27736787

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2474388A Expired - Fee Related CA2474388C (en) 2002-02-04 2003-01-30 External fixation system

Country Status (9)

Country Link
US (2) US7004943B2 (en)
EP (1) EP1471842B1 (en)
JP (1) JP4323959B2 (en)
AT (1) ATE391459T1 (en)
AU (1) AU2003207741B2 (en)
CA (1) CA2474388C (en)
DE (1) DE60320217T2 (en)
ES (1) ES2302914T3 (en)
WO (1) WO2003065911A1 (en)

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US7887537B2 (en) 2011-02-15
AU2003207741B2 (en) 2008-05-08

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