WO2006007736A1 - Dispositif pour fixer des appareils chirurgicaux - Google Patents

Dispositif pour fixer des appareils chirurgicaux Download PDF

Info

Publication number
WO2006007736A1
WO2006007736A1 PCT/CH2004/000464 CH2004000464W WO2006007736A1 WO 2006007736 A1 WO2006007736 A1 WO 2006007736A1 CH 2004000464 W CH2004000464 W CH 2004000464W WO 2006007736 A1 WO2006007736 A1 WO 2006007736A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
frame member
frame members
relative
axis
Prior art date
Application number
PCT/CH2004/000464
Other languages
German (de)
English (en)
Inventor
Kaj Klaue
Original Assignee
Synthes Ag Chur
Synthes (U.S.A.)
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
Application filed by Synthes Ag Chur, Synthes (U.S.A.) filed Critical Synthes Ag Chur
Priority to PCT/CH2004/000464 priority Critical patent/WO2006007736A1/fr
Publication of WO2006007736A1 publication Critical patent/WO2006007736A1/fr

Links

Classifications

    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
    • A61B17/17—Guides or aligning means for drills, mills, pins or wires
    • 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

Definitions

  • the invention relates to a device for attaching surgical instruments and / or devices relative to a patient according to claim 1.
  • C-arm frame members or carriers are used in surgery, for example, in target devices, reduction devices, compression devices or even in surgical image intensifiers (X-ray devices).
  • Such C-shaped frame members having a longitudinal beam member and two cross beam members are subject to deformations, in particular because of their shape where the cross beams may act as lever arms, which may limit the use of such arcuate frame members.
  • the forces on the free ends of such a C-shaped frame member may be generated, for example, by the weight of the instruments attached to the ends (image intensifiers) or by forces generated by repositioning or compression of bone by means of repositioning or compression screws attached to the frame member ,
  • a target device is known with a longitudinal beam adjustable in its length and two cross beams fixed at the end on the longitudinal beam and likewise adjustable in length.
  • One of the cross members is fixed with its free end to the bone, while the second cross member comprises a drill sleeve with the longitudinal member parallel central axis.
  • a pelvic forceps for repositioning pelvic bone fragments which has a longitudinal splint and two arms arranged perpendicular thereto.
  • This known Beckenzwinge is designed C-shaped.
  • a disadvantage of these known devices that C-curved frame elements with respect to bending, in particular against spreading of the bow and torsion, ie, distortion of the device have low stability. Such deformations can significantly reduce the accuracy in the application of the device.
  • the invention aims to remedy this situation.
  • the invention has for its object to provide a device for attachment of surgical instruments relative to a patient whose frame has a maximum stability with respect to bending and torsion.
  • the invention achieves the stated object with a device having the features of claim 1.
  • the device in its open for manipulating the device position, for example, simple and a bone is feasible.
  • the apparatus comprises two frame members, each of the two C-arm frame members having first and second ends to which mutually engageable connecting means are disposed. These first and second connecting means are engageable with each other such that the first end of the first frame member is joined to the first end of the second frame member and, analogously, the second ends of the two frame members are joined together.
  • the connecting means at the ends of the frame members are releasably engageable with each other. This achieves the advantage that, for example, the first frame element is first positioned on the patient, i. in particular can be guided around a bone, while the second frame member is subsequently connected to the first frame member.
  • the connecting means comprise complementary, releasably fixable plug-in connections, so that thus the advantage can be achieved that the device is easy to assemble.
  • the connecting means comprise joints.
  • the apparatus is in one piece and the frame members can be adjusted at a suitable angle relative to each other so that disabilities for the surgeon can be reduced.
  • the device each includes a releasably lockable hinge between the first ends and between the second ends of the frame members, such that the frame members are pivotable relative to each other about a rotation axis intersecting the first and second ends of the first frame member so as to open into one another.
  • a C-shaped arc forming position A or in a closed, a rigid frame forming position B can be brought.
  • the joints may be formed, for example, as hinge joints, each having an axis coaxial with the axis of rotation.
  • hinge joints are pivotable only about a single axis of rotation, the forces transversely to the axis of rotation, as they occur for example when expanding parallel to the axis or twisting of the frame, form-fitting record.
  • a plurality, preferably three frame members are provided.
  • the merged frame elements form a cage-like structure with a further increased stability of the device.
  • the connecting means comprise releasably lockable locking means for blocking or unblocking the frame members relative to one another.
  • the locking means comprise releasably engageable snap closures to allow easy blocking or deblocking of the connection means.
  • such snaps include at least one resilient pin and at least one complementary bore on the connecting means, the frame members being locked relative to each other when the pins are snapped into the holes and movable relative to each other when the pins are disengaged from the holes.
  • the locking means may also comprise releasably engageable gears.
  • the device comprises first and second means for repositioning bones, which are preferably connectable to the frame members.
  • the first and second bone repositioning means are disposed opposite one another on a connecting line on the frame members.
  • Figure 1 is a perspective view of an embodiment of the inventive device with relatively pivotable frame members in their open, forming a C-shaped arc position A.
  • FIG. 2 shows the embodiment of the device according to the invention according to FIG. 1 in its closed position B forming a rigid frame
  • FIGS. 1 and 2 shows an embodiment of the connecting means using the example of the embodiment of the device according to the invention shown in FIGS. 1 and 2;
  • FIG. 4 shows a view of an embodiment of the device according to the invention using the example of an X-ray machine with plug-in frame elements in its closed position B;
  • FIG. 5 is a perspective view of an embodiment of the device according to the invention with three free frame elements in their closed position B.
  • first mechanical connecting means 17 are arranged at the two ends 3, 4 of the first frame element 2, which each have a joint 9 in pairs with the second connecting means 18 arranged at the first and second ends 6, 7 of the second frame element 5, so that the two frame elements 2, 5 about a first and the second ends 3, 4 of the first frame member 2 and the first and second ends 6, 7 of the second frame member 5 intersecting axis of rotation 12 are pivotally connected relative to each other.
  • the joints 9 are here designed as hinge joints, so that they are pivotable only about the axis of rotation 12 and with respect to an axis transverse to the axis of rotation 12 a form-fitting Form a connection.
  • the two frame members 2; 5 are pivotable relative to each other so that they in an open, a C-shaped arc-forming position A (Fig. 1) or in a closed, a rigid frame 11 forming position B (Fig. 2) can be brought.
  • the joints 9 formed as first and second connecting means 17; 18 are preferably provided with locking means 25 ( Figure 3) so that the two frame members 2, 5 are releasably lockable relative to each other at least in the position B ( Figure 2).
  • Such locking means 25 (FIG. 3) can be designed, for example, as screwable clamping elements, as intermeshable toothings on the adjacent surfaces of the joints 9, or as resilient snap closures (FIG. 3).
  • the device 1 comprises first and second means 13; 15 for the reduction of bone or bone fragments, which are arranged here on a coincident with the axis of rotation 12 connecting line 10 and coaxial with the axis of rotation 12 in the axes of the joints 9 screwed bolts.
  • the connecting means 17 comprise a slotted sleeve 30 whose slot 32 extends substantially parallel to the axis of rotation 12, so that the sleeve 30 is slidable transversely to the axis of rotation 12 about the axis 8 coaxial to the axis of rotation 8 of the joint 9.
  • the connecting means 17 comprise a screw 33 which can be screwed into a bore 37 having an internal thread running transversely to the axis of rotation 12 at the first end 3 of the first frame element 2.
  • the sleeve 30 is by means of the screw 33, which viewed the slot 32 - orthogonal to the rotation axis 12 - bridged like a chord outside the sleeve bore 38, clamped on the sleeve 31.
  • the screw 33 is removable from the sleeve 30 prior to assembly and comprises a relative to the screw axis 34 angled, preferably removable handle 35.
  • the locking means 14 for releasably blocking the joint 9 can by other non-positively or positively acting means (not drawn) be formed.
  • Coaxially attached to the axles 8 are the first bone reduction means 13.
  • second means 15 for repositioning bones may be inserted or screwed in on a further axis 8 (not shown) on the second end 4 of the first frame element 2.
  • first sleeve 31 at the first ends 3, 6, 20 and a second sleeve 31 at the second ends 4, 7, 21 of the frame members 2, 5, 19 in the sleeve bores of all three connecting means 17, 18, 24 ( Figures 1 and 5) is inserted, so that all the frame elements 2, 5, 19 are pivotally connected to the two bushings 31 about the axis of rotation 12.
  • the sleeves 30 of the frame elements 2, 5, 19 mounted on a sleeve 31 are arranged axially one behind the other and are detachably fixable by means of the screws 33, which serve as locking means 14 in this embodiment.
  • FIG. 4 an embodiment is shown, which is mounted on a mobile C-arc type X-ray device, wherein the X-ray source 26 is disposed at the first end 3 of the first frame member 2 and the connecting line 10 on the opposite side disposed receiver 27 at the second end 4 of the first Frame element 2 is attached.
  • the embodiment of the device 1 only differs from the embodiment illustrated in FIGS. 1 and 2 in that the first and second connecting means 17; 18 are not designed as a hinge 9 (FIGS. 1 and 2) but as a plug connection.
  • the first frame element 2 with the X-ray source 26 and the receiver 27 can thus be positioned without the second frame element 5 in the open position A (not shown) relative to a patient lying on the operating table 28 and then the second frame element 5 transversely to the connecting line 10 at first frame member 2 are attached.
  • locking means 25 are provided on the first connection means 17 on the first frame element 2 and on the second connection means 18 on the second frame element 5 as snap-in closures which can be brought into engagement with one another.
  • These snap locks comprise per locking means 25 a resilient pin 22 on the second connecting means 18 and a complementary bore 23 on the first connecting means 17, the two frame members 2, 5 being locked relative to each other when the pins 22 are engaged in assembled holes in the holes 23 are.
  • the second frame member 5 for the purpose of removing the X-ray device again transversely to the connecting line 10 from the first frame member 2 are removed.
  • FIG. 5 differs from the embodiment shown in FIGS. 1 and 2 in that
  • the device 1 comprises a third frame element 19 having a first and a second end 20, 21, as well as third mechanical connection means 24 arranged at the two ends 20, 21,
  • the three frame elements 2; 5; 19 enclose substantially the same angles ⁇ , ⁇ , ⁇ of approximately 120 ° with respect to each other in a cross-section perpendicular to the connecting line 10; and that

Landscapes

  • Health & Medical Sciences (AREA)
  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Pathology (AREA)
  • Oral & Maxillofacial 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

L'invention concerne un dispositif (1) permettant de fixer des instruments chirurgicaux par rapport à un patient, comportant n = 2 éléments de cadre (2; 5; 19), qui peuvent être réunis par assemblage, par leurs extrémités (4; 4; 5; 7; 20; 21), de sorte à former un cadre (11) ou une cage rigide.
PCT/CH2004/000464 2004-07-22 2004-07-22 Dispositif pour fixer des appareils chirurgicaux WO2006007736A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CH2004/000464 WO2006007736A1 (fr) 2004-07-22 2004-07-22 Dispositif pour fixer des appareils chirurgicaux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2004/000464 WO2006007736A1 (fr) 2004-07-22 2004-07-22 Dispositif pour fixer des appareils chirurgicaux

Publications (1)

Publication Number Publication Date
WO2006007736A1 true WO2006007736A1 (fr) 2006-01-26

Family

ID=34958031

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2004/000464 WO2006007736A1 (fr) 2004-07-22 2004-07-22 Dispositif pour fixer des appareils chirurgicaux

Country Status (1)

Country Link
WO (1) WO2006007736A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069427A2 (fr) * 1981-07-08 1983-01-12 FABRIQUE NATIONALE HERSTAL en abrégé FN Société Anonyme Dispositif stéréotaxique pour l'électro-coagulation des ganglions de Gasser
CH680561A5 (en) 1989-07-13 1992-09-30 Synthes Ag Pelvic clamp assembly - has arms sliding along rail, with pointed tips at free ends bearing against bone
DE4133403A1 (de) * 1991-10-09 1993-04-15 Heidmueller Harald Instrumentenhalter
US5300071A (en) * 1992-11-17 1994-04-05 Ace Medical Company Pelvic stabilizer
US5649930A (en) 1996-01-26 1997-07-22 Kertzner; Richard I. Orthopedic centering tool
DE19711964A1 (de) 1997-03-21 1998-10-08 Siemens Ag Röntgenuntersuchungsgerät mit einem C-Bogen
US6413263B1 (en) * 2000-04-24 2002-07-02 Axon Instruments, Inc. Stereotactic probe holder and method of use

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069427A2 (fr) * 1981-07-08 1983-01-12 FABRIQUE NATIONALE HERSTAL en abrégé FN Société Anonyme Dispositif stéréotaxique pour l'électro-coagulation des ganglions de Gasser
CH680561A5 (en) 1989-07-13 1992-09-30 Synthes Ag Pelvic clamp assembly - has arms sliding along rail, with pointed tips at free ends bearing against bone
DE4133403A1 (de) * 1991-10-09 1993-04-15 Heidmueller Harald Instrumentenhalter
US5300071A (en) * 1992-11-17 1994-04-05 Ace Medical Company Pelvic stabilizer
US5649930A (en) 1996-01-26 1997-07-22 Kertzner; Richard I. Orthopedic centering tool
DE19711964A1 (de) 1997-03-21 1998-10-08 Siemens Ag Röntgenuntersuchungsgerät mit einem C-Bogen
US6413263B1 (en) * 2000-04-24 2002-07-02 Axon Instruments, Inc. Stereotactic probe holder and method of use

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