CA2002174A1 - Pedicle engaging means - Google Patents
Pedicle engaging meansInfo
- Publication number
- CA2002174A1 CA2002174A1 CA002002174A CA2002174A CA2002174A1 CA 2002174 A1 CA2002174 A1 CA 2002174A1 CA 002002174 A CA002002174 A CA 002002174A CA 2002174 A CA2002174 A CA 2002174A CA 2002174 A1 CA2002174 A1 CA 2002174A1
- Authority
- CA
- Canada
- Prior art keywords
- engaging means
- pedicle
- bridge member
- hole
- arched
- 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
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
- A61B17/68—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
- A61B17/7053—Spinal positioners or stabilisers ; Bone stabilisers comprising fluid filler in an implant with parts attached to bones or to each other by flexible wires, straps, sutures or cables
Abstract
ABSTRACT
PEDICLE ENGAGING MEANS
Pedicle engaging means comprises a bridge member (10) and two clip members (15); the bridge member having an arched middle portion (11) with concave edges (22) to afford clearance with respect to adjacent spinous processes (23), an aperture (12) in each side of the arch, and a pair of end portions (13) each with a hole for a pedicle screw (29); each clip member (15) having a tip (16) engageable in one of the apertures (12), and a fixing portion (17) with a hole (18) for receiving a pedicle screw (29); and each clip member being cranked (at 19) so as to form with the junction (20) between the arch (11) and respective end portion (13) of the bridge member (10) a pair of clamping parts for embracing a rod or rod-like portion (21') of a spinal fixation device (26).
PEDICLE ENGAGING MEANS
Pedicle engaging means comprises a bridge member (10) and two clip members (15); the bridge member having an arched middle portion (11) with concave edges (22) to afford clearance with respect to adjacent spinous processes (23), an aperture (12) in each side of the arch, and a pair of end portions (13) each with a hole for a pedicle screw (29); each clip member (15) having a tip (16) engageable in one of the apertures (12), and a fixing portion (17) with a hole (18) for receiving a pedicle screw (29); and each clip member being cranked (at 19) so as to form with the junction (20) between the arch (11) and respective end portion (13) of the bridge member (10) a pair of clamping parts for embracing a rod or rod-like portion (21') of a spinal fixation device (26).
Description
~ C3~
E t~U ~G I 1~ ~lE J1 N S
~rhi~ lnve~tlorl relato~ to p~dl~le en~glng ~e~n~ for ~:~e ln ~pln~l ~urgery.
Pedlcl~ ~crew~ a~e well kl~owl~ f~ u2e ~n sy~te~s for lllterne~l fi~at:lon of the splne. Hvwever, problemG ha~/e arl6en ln attempt:lng to use pedicle scr0wb ln ~ystem~ ~or :) C: `311~ C 11 1. C. 1 t~ ~1 1'1 Cl .1 r 1 i~ C~ 1.1 u 11. S V 11 I t~ t3 1. .:1 ~ b 1, L ': W O ~ ~ 1 L t: b ~ 'J
O C ~1.1 L C': 1.1 I ~:111 l. 1:/ L Cl li 6 V L V ~_11 t: L V. ~ V 1 ~, C: C~ U O C~ V C V L ~ ~ y 11~ ~ p ~
~iX~t~ 111 dlte~tl~e whi~ll 16 ~me~lmes ~sed ~ t~ e llse ~f plates ~lnstead ~f r~ds) ~r Cu6t~n~ t devl~es.
Pedlcle screw~ nlay t~e used ~Yhen t~lere 1~ no l~ml~a preSellt and lYhen ~n~eqUelltly ~et~l~d~ u~-lamlll~ wlring~e u~ ltable.
l~he ob~ect o~ the preOent lnventlon 1~ to provlde pedlcle engaglng nlean~ p~rtlcularly ~ulte~ to u~e with ox~ stln~ ~:or~ontal ~:~lns~l f~x2~10n d~vl~ rh ~ "t.~
r~ds" or, more partlcularly, "~art~hlll Rectangle~" or po~te~lor i3plnal ~urgery, According to the pse~ent lnve~ lon, pedlcle, e,ngaglns mean6 comprl8e6 a brldge member havlng an arched mlddle p~tiOIl Wltb ~ e~t~e In e~ch s~e Of t~e ar~ and a palr I
of generally copl~n3r end por~lan~ each wlt:h a hole ~or rotatably recelvln~ ~ pedlcle Rcraw; and ~ palr of cllp mem~er~3 ~a-:h ~l~vln~ ~ly ~llya~ Jlu 1~ C o.p~t~rc lr~ ~hs arche~ portlon of the brldge member, and each havlng a ~lxlng yortion ~lth a hole ~r-rotatably recelvlng ~ pedlal~ aarew;
the hole in a cllp member belng ir~ regl~ter wlth the ho~e ln the respective end portlon of the brldge Member when th~ tlp o~ the clip member 1~ engaged in the re~pectlve ~perturo ln th~ arched por~lon o~ the ~rld~e member, And the portlor~ o~
the a~ p ~em~er betwecn lt~ tlp ~nd 1~ ~lxlng por~lon being cranked 60 a~ to fo~m wlth the ~lnction be~ween the arche~
portlon and t~le re~pectl~/~ end ~or~lon of the brldge member ~
pair o~ clamping pzrts ~or embraclng a rod or rod-like portlon Of ~ na1 ~lxation ~evice, It is ant~clpa~ed ~tl: pres~nt ~hat there are three likely occa~ions whesl the pedicle engaglng mean~ o~ t~he inventioll w ill ~e u~ed:-1. W~en there haR ~een a p~evious extensiYe wiredlaminec'comy ln t~le lumbar region.
2. When it is nece~sary to brldge a number of levels arld to engag~ lntervenlng level6 particularly to re~uce ~lip ln ~pondylol16the~
E t~U ~G I 1~ ~lE J1 N S
~rhi~ lnve~tlorl relato~ to p~dl~le en~glng ~e~n~ for ~:~e ln ~pln~l ~urgery.
Pedlcl~ ~crew~ a~e well kl~owl~ f~ u2e ~n sy~te~s for lllterne~l fi~at:lon of the splne. Hvwever, problemG ha~/e arl6en ln attempt:lng to use pedicle scr0wb ln ~ystem~ ~or :) C: `311~ C 11 1. C. 1 t~ ~1 1'1 Cl .1 r 1 i~ C~ 1.1 u 11. S V 11 I t~ t3 1. .:1 ~ b 1, L ': W O ~ ~ 1 L t: b ~ 'J
O C ~1.1 L C': 1.1 I ~:111 l. 1:/ L Cl li 6 V L V ~_11 t: L V. ~ V 1 ~, C: C~ U O C~ V C V L ~ ~ y 11~ ~ p ~
~iX~t~ 111 dlte~tl~e whi~ll 16 ~me~lmes ~sed ~ t~ e llse ~f plates ~lnstead ~f r~ds) ~r Cu6t~n~ t devl~es.
Pedlcle screw~ nlay t~e used ~Yhen t~lere 1~ no l~ml~a preSellt and lYhen ~n~eqUelltly ~et~l~d~ u~-lamlll~ wlring~e u~ ltable.
l~he ob~ect o~ the preOent lnventlon 1~ to provlde pedlcle engaglng nlean~ p~rtlcularly ~ulte~ to u~e with ox~ stln~ ~:or~ontal ~:~lns~l f~x2~10n d~vl~ rh ~ "t.~
r~ds" or, more partlcularly, "~art~hlll Rectangle~" or po~te~lor i3plnal ~urgery, According to the pse~ent lnve~ lon, pedlcle, e,ngaglns mean6 comprl8e6 a brldge member havlng an arched mlddle p~tiOIl Wltb ~ e~t~e In e~ch s~e Of t~e ar~ and a palr I
of generally copl~n3r end por~lan~ each wlt:h a hole ~or rotatably recelvln~ ~ pedlcle Rcraw; and ~ palr of cllp mem~er~3 ~a-:h ~l~vln~ ~ly ~llya~ Jlu 1~ C o.p~t~rc lr~ ~hs arche~ portlon of the brldge member, and each havlng a ~lxlng yortion ~lth a hole ~r-rotatably recelvlng ~ pedlal~ aarew;
the hole in a cllp member belng ir~ regl~ter wlth the ho~e ln the respective end portlon of the brldge Member when th~ tlp o~ the clip member 1~ engaged in the re~pectlve ~perturo ln th~ arched por~lon o~ the ~rld~e member, And the portlor~ o~
the a~ p ~em~er betwecn lt~ tlp ~nd 1~ ~lxlng por~lon being cranked 60 a~ to fo~m wlth the ~lnction be~ween the arche~
portlon and t~le re~pectl~/~ end ~or~lon of the brldge member ~
pair o~ clamping pzrts ~or embraclng a rod or rod-like portlon Of ~ na1 ~lxation ~evice, It is ant~clpa~ed ~tl: pres~nt ~hat there are three likely occa~ions whesl the pedicle engaglng mean~ o~ t~he inventioll w ill ~e u~ed:-1. W~en there haR ~een a p~evious extensiYe wiredlaminec'comy ln t~le lumbar region.
2. When it is nece~sary to brldge a number of levels arld to engag~ lntervenlng level6 particularly to re~uce ~lip ln ~pondylol16the~
3. In pa1nful spondylo1y~i6 ln young patlents where at presellt with suL)lamlnar wlrit)g t~te 1evel above has to be lncluded ~ n order tc) gain f ixatlon, whereas wlth the pedlcle e n ga gi n g m ea n s o~ th e i nv e nti ~I n th e 1 nt e~ n ~1 1 l xa t:l ol~ can b e 1 lmited to one mot;ion ~egmenl .
The ~rlclge mem~e~ ~nd ~he tw~ c1ip meTnber~ may he f~rm~ r:~ ~n~r h;r~ m~ hl 1~ m~t-Pr~ hl~t ~ fl Rxl~r~1.h ma~:erlal-~uch a~ talnler~ ~te~l ~trlp, en~tble~ the ghape o~ the arched po~ion to be modlfied by the ~urgeons to vary the ~pa~ln~
~etween the ~crew hol ~s andJor the alignnlent of ~r ~ngularity botwoon thQ q~n~ portlon~ ont~lt-~n~J l-h~ r~w hnl.~ owever, more than on~ ~ize of brid~e nlem~r m~y be provlded, wl~ch arched portion of di~ferent ~;pan and/o~ height~ T}le widl;h of the arched portion m~y ~e r~duced between the apert~lre~ ~or _ 3 ~ t7~
eng~gernent ~ the tlp~ of the ol lp Inelnber~, e.g., ~he edge~ of the ~rched portion may be concavc ln pl~n vl~w to orm a nock h~ving lt~ leasl: widt~ at t~,e t~lddle, to af~ord clearance wlth res~ct to adjace~lt splnc)us proce~s.
The hole~ ln t~le end portlons of the brl~ge m~m~r and/oL l:tle hol~ in the f$xing portlons of the clip member~
may be elonyate~ ln ~he lengthwi~e dlrection o the bri~ge memb~r, to allvw adJu~tment of the spac~ny and/oL lnclinatlon ~f ru~ fl1 r~ o s~ r ~w ~: w l ~h r .e~r.e rt t ~ th ~ r ~ nf t~. ~ bnrportlons of the ~ridge mem~e~. ~ormatlon and elongat:lon of l;~e lloles may be e~ec~ed by mean~ of a ball cutter appl ied ~o the remote faces o~ ~he end portion~ o~ the bridye m~mb~r and the 1xlng portlons of ~he clip member~ re~pectively and move~
tow~rds the arched ~ortion of th~ brldge membeL and away from t~le tl~: o~ the cllp men-bers respec~lvely.
~ n embodiment of the lnventlGn, and the manner o1' lt6 u e, wlll now be descrlbed, by way o~ ex~mpl~ only, wlth ef erence to the accomp~nying drawings, ln whi~
E~igure 1 1~ ~ slde el~vatlc,n of l;he brldge member of pedicle enga~ing means ln accordanee wlth ~:h~ inventlonJ
Figure 2 is a plan of t}le brldge m~mb~ri Fi gllr e 3 1~ an end el evation o the brldge m embe~;
Flgure 4 18 a plan vlew lllusl;r~tlng a method o~
~!multaneously formlng two clip members;
Figur~ S is ~ ~ide elevatlon o~ one cllp member ~ter bending of it ~ tip~
~ igure 6 is an end ~levation ~r~n t~le right hand end of ~gu~ 51 _ 4 ~
~ lgure 7 corrc~ponds to Fi~Ure 1 bu'c l~;hOW~ the cllp r,len~ber~ eng~ged ~lth the bridge mernber ~nd rod~ in place for cl ~m pl ng th er etb;
Flgu~e ~ 1~ an e~ rged fr~mentary ~ectlon through tlle rlyht ~land encl pvrtlon of the brl~ge member ~nd th~ flxlng ~Ortioh cf 'che corre~ponding clip member, ~nd ln~lcatlng tl~e rnantlet o elonq~lng ~he hole~t and ~ igure 9 ls a per~l?ectlve vlew 6h~wing th~ as~embl~ o~
brldge member and clip member~ ~lanlped l;o ~ nHartsh~ll Rectangl er and 6ecur ed by pedi cl e scr ew s.
In Flgu~es l to 3 a brldge membex 10 ~or ped~ cle eng~glng me~ns in acc~r~arce with the invent~on ~a6 ~n arched ml~dle portlon ll wi~h an aperture 12 ln each slde of the Arrh, AnA A ~)A1 r r~ PnPr~l ly ~n~ n~r ~nd port:Lons 13 each wlth a hole 14 f~r rotata~ly re~eiving a predicle ~crew ~ee Flgure ~).
In Figur~ 4 a pair o cl lp member& 15 ~re ~ormed slmultaneou6ly, eac~l having a l;ip 16 eng~e~ble ln one aperture 12 in the arched portioh ll of the brld~e member 10 (~ee F~gures ~ a:nd 9) an~ each having ~ fixing portlon 17 with a hole 1~ ~or rotat~bly ~eceivlng a p~dicle 6cre~ (ag~ln aee ~gur e ~ .
Figu~e~ 7 and 9 ~how ~he tlp~ 1~ o~ the ~lip member~ 15 engaged ln the ~pertures 12 ln the arched portlon 11 of the bridge mernber 10, the hole 18 ln the ~ ixing portlon 17 of each clip member ~eing ln regis~er ~7ith t~le c~rl~pondlng hole l~L
1 n the re~pective end portlon 13 G;~ the brld~ member, ~nd the portion 19 of each clip membe~ 15 between ~t6 ~ip 1~ nnd its O~X~7~
~ixing port~on 17 is cr~nkcd ~o aa to form wi~:h ~he ~unc~ion 20 b~twe~n the arçho~ portion 11 and th~ re~p~ctlve end port~ion 13 o~ ~he brldge member 10 ~ p~lr o cl~mplng p~r'c for embracing a rod or rod-llke porti~n 21 of a 6pin~1 i xa tl on dev i ae .
~ le ed~es ~2 of the arched port;ion 11 ~le concave in plan v~ ew to ~oLm a neck h~vlng 1~ lea~t widt~l At the Mlddle, to ~f~ord cl.~arance with respect to adjacent sp~nous proce~se~
23 ~ ~ee Fi g~lr e 9) .
~ he hole~ 14l 18 in the end pvrtions 13 o~ the ~r~dge rnember 1~ and the flxlng por~ions 17 of the cllp memb~r~ 15 respectlvely are ~ormed and elong~ed by ~ t)all cu~l:er appl ied tO the remo~e ~aces 24, 25 re6pec~ively an~ moved l~oward~ 'che arched portlon 11 oP ~he bridge member and awsy from the ~ip~
1~ o~ the cllp por'clons re~pectively (as indicated by tl arrow~ Flgure 8).
~ lgure 9 sh~ws ~ "Hast6hlll ~ectAn~le" 26 ~e¢uled ln place on the lower lunnber splne by sub-lanllnar wlres ~7 at the ~unction~ ~etween the longer slde~ 21' and the ~en~ ~ho~ter side~ 2~ of th~ rec'cangle, and pedlcle screws 29 - securlng thc ~ ernbly o ~hc bfld~o mombor 1~ ~nd ollp m~ml:~r~ lr~ tc~
t~e rectangle ~n~ to the ~piner the ~crews 29 p~sing through the pedicle 30 and into the body o~ a verte~ra 31.
The ~rlclge mem~e~ ~nd ~he tw~ c1ip meTnber~ may he f~rm~ r:~ ~n~r h;r~ m~ hl 1~ m~t-Pr~ hl~t ~ fl Rxl~r~1.h ma~:erlal-~uch a~ talnler~ ~te~l ~trlp, en~tble~ the ghape o~ the arched po~ion to be modlfied by the ~urgeons to vary the ~pa~ln~
~etween the ~crew hol ~s andJor the alignnlent of ~r ~ngularity botwoon thQ q~n~ portlon~ ont~lt-~n~J l-h~ r~w hnl.~ owever, more than on~ ~ize of brid~e nlem~r m~y be provlded, wl~ch arched portion of di~ferent ~;pan and/o~ height~ T}le widl;h of the arched portion m~y ~e r~duced between the apert~lre~ ~or _ 3 ~ t7~
eng~gernent ~ the tlp~ of the ol lp Inelnber~, e.g., ~he edge~ of the ~rched portion may be concavc ln pl~n vl~w to orm a nock h~ving lt~ leasl: widt~ at t~,e t~lddle, to af~ord clearance wlth res~ct to adjace~lt splnc)us proce~s.
The hole~ ln t~le end portlons of the brl~ge m~m~r and/oL l:tle hol~ in the f$xing portlons of the clip member~
may be elonyate~ ln ~he lengthwi~e dlrection o the bri~ge memb~r, to allvw adJu~tment of the spac~ny and/oL lnclinatlon ~f ru~ fl1 r~ o s~ r ~w ~: w l ~h r .e~r.e rt t ~ th ~ r ~ nf t~. ~ bnrportlons of the ~ridge mem~e~. ~ormatlon and elongat:lon of l;~e lloles may be e~ec~ed by mean~ of a ball cutter appl ied ~o the remote faces o~ ~he end portion~ o~ the bridye m~mb~r and the 1xlng portlons of ~he clip member~ re~pectively and move~
tow~rds the arched ~ortion of th~ brldge membeL and away from t~le tl~: o~ the cllp men-bers respec~lvely.
~ n embodiment of the lnventlGn, and the manner o1' lt6 u e, wlll now be descrlbed, by way o~ ex~mpl~ only, wlth ef erence to the accomp~nying drawings, ln whi~
E~igure 1 1~ ~ slde el~vatlc,n of l;he brldge member of pedicle enga~ing means ln accordanee wlth ~:h~ inventlonJ
Figure 2 is a plan of t}le brldge m~mb~ri Fi gllr e 3 1~ an end el evation o the brldge m embe~;
Flgure 4 18 a plan vlew lllusl;r~tlng a method o~
~!multaneously formlng two clip members;
Figur~ S is ~ ~ide elevatlon o~ one cllp member ~ter bending of it ~ tip~
~ igure 6 is an end ~levation ~r~n t~le right hand end of ~gu~ 51 _ 4 ~
~ lgure 7 corrc~ponds to Fi~Ure 1 bu'c l~;hOW~ the cllp r,len~ber~ eng~ged ~lth the bridge mernber ~nd rod~ in place for cl ~m pl ng th er etb;
Flgu~e ~ 1~ an e~ rged fr~mentary ~ectlon through tlle rlyht ~land encl pvrtlon of the brl~ge member ~nd th~ flxlng ~Ortioh cf 'che corre~ponding clip member, ~nd ln~lcatlng tl~e rnantlet o elonq~lng ~he hole~t and ~ igure 9 ls a per~l?ectlve vlew 6h~wing th~ as~embl~ o~
brldge member and clip member~ ~lanlped l;o ~ nHartsh~ll Rectangl er and 6ecur ed by pedi cl e scr ew s.
In Flgu~es l to 3 a brldge membex 10 ~or ped~ cle eng~glng me~ns in acc~r~arce with the invent~on ~a6 ~n arched ml~dle portlon ll wi~h an aperture 12 ln each slde of the Arrh, AnA A ~)A1 r r~ PnPr~l ly ~n~ n~r ~nd port:Lons 13 each wlth a hole 14 f~r rotata~ly re~eiving a predicle ~crew ~ee Flgure ~).
In Figur~ 4 a pair o cl lp member& 15 ~re ~ormed slmultaneou6ly, eac~l having a l;ip 16 eng~e~ble ln one aperture 12 in the arched portioh ll of the brld~e member 10 (~ee F~gures ~ a:nd 9) an~ each having ~ fixing portlon 17 with a hole 1~ ~or rotat~bly ~eceivlng a p~dicle 6cre~ (ag~ln aee ~gur e ~ .
Figu~e~ 7 and 9 ~how ~he tlp~ 1~ o~ the ~lip member~ 15 engaged ln the ~pertures 12 ln the arched portlon 11 of the bridge mernber 10, the hole 18 ln the ~ ixing portlon 17 of each clip member ~eing ln regis~er ~7ith t~le c~rl~pondlng hole l~L
1 n the re~pective end portlon 13 G;~ the brld~ member, ~nd the portion 19 of each clip membe~ 15 between ~t6 ~ip 1~ nnd its O~X~7~
~ixing port~on 17 is cr~nkcd ~o aa to form wi~:h ~he ~unc~ion 20 b~twe~n the arçho~ portion 11 and th~ re~p~ctlve end port~ion 13 o~ ~he brldge member 10 ~ p~lr o cl~mplng p~r'c for embracing a rod or rod-llke porti~n 21 of a 6pin~1 i xa tl on dev i ae .
~ le ed~es ~2 of the arched port;ion 11 ~le concave in plan v~ ew to ~oLm a neck h~vlng 1~ lea~t widt~l At the Mlddle, to ~f~ord cl.~arance with respect to adjacent sp~nous proce~se~
23 ~ ~ee Fi g~lr e 9) .
~ he hole~ 14l 18 in the end pvrtions 13 o~ the ~r~dge rnember 1~ and the flxlng por~ions 17 of the cllp memb~r~ 15 respectlvely are ~ormed and elong~ed by ~ t)all cu~l:er appl ied tO the remo~e ~aces 24, 25 re6pec~ively an~ moved l~oward~ 'che arched portlon 11 oP ~he bridge member and awsy from the ~ip~
1~ o~ the cllp por'clons re~pectively (as indicated by tl arrow~ Flgure 8).
~ lgure 9 sh~ws ~ "Hast6hlll ~ectAn~le" 26 ~e¢uled ln place on the lower lunnber splne by sub-lanllnar wlres ~7 at the ~unction~ ~etween the longer slde~ 21' and the ~en~ ~ho~ter side~ 2~ of th~ rec'cangle, and pedlcle screws 29 - securlng thc ~ ernbly o ~hc bfld~o mombor 1~ ~nd ollp m~ml:~r~ lr~ tc~
t~e rectangle ~n~ to the ~piner the ~crews 29 p~sing through the pedicle 30 and into the body o~ a verte~ra 31.
Claims (8)
1. Pedicle engaging means comprising a bridge member having an arched middle portion with an aperture in each side of the arch, and a pair of generally coplanar end portions each with a hole for rotatably receiving a pedicle screw; and a pair of clip members each having a tip engageable in one aperture in the arched portion of the bridge member, and each having a fixed portion with a hole for rotatably receiving a pedicle screw; the hole in a clip member being in register with the hole in the respective end portion of the bridge member when the tip of the clip member is engaged in the its fixing portion being cranked so as to form with the junction between the arched portion and the respective end portion of the bridge member a pair of clamping parts for embracing a rod or rod-like portion of a spinal fixation device.
2. Pedicle engaging means as in Claim 1 formed of stainless steel strip.
3. Pedicle engaging means as Claim 1 or Claim 2, wherein the width of the arched portion of the bridge memger is reduced between the apertures for engagement by the tips of the clip members.
4. Pedicle engaging means as in Claims 3, wherein the edges of the arched portion are concave in plan view to form a neck having its least width at the middle.
5. Pedicle engaging means as in any one of Claims1 to 4, wherein the holes in the end portions of the bridge member are elongated in the lengthwise direction of the bridge member.
6. Pedicle engaging means as in any one of Claims 1 to 5, wherein the holes in the fixing portions of the clip members are elongated in the lengthwise direction of the bridge member.
7. Pedicle engaging means as in Claim 5 or Claim 6, wherein formation and elongation of the holes is effected by means of a ball cutter applied to the remote faces of the end portions of the bridge member and the fixing portionsof the clip members respectively and moved towards the arched portion of the bridge member and away from the tips of the clip members respectively.
8. Pedicle engaging means substantially as hereinbefore described with reference to the accompanying drawings.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8825909 | 1988-11-04 | ||
GB888825909A GB8825909D0 (en) | 1988-11-04 | 1988-11-04 | Pedicle engaging means |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2002174A1 true CA2002174A1 (en) | 1990-05-04 |
Family
ID=10646354
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002002174A Abandoned CA2002174A1 (en) | 1988-11-04 | 1989-11-03 | Pedicle engaging means |
Country Status (14)
Country | Link |
---|---|
US (1) | US5366455A (en) |
EP (1) | EP0399011B1 (en) |
JP (1) | JPH06128B2 (en) |
AR (1) | AR245585A1 (en) |
AT (1) | ATE106220T1 (en) |
AU (1) | AU625616B2 (en) |
BR (1) | BR8907151A (en) |
CA (1) | CA2002174A1 (en) |
DE (1) | DE68915747T2 (en) |
DK (1) | DK157690A (en) |
ES (1) | ES2017307A6 (en) |
GB (1) | GB8825909D0 (en) |
NO (1) | NO175732C (en) |
WO (1) | WO1990004948A1 (en) |
Families Citing this family (211)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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US9451987B2 (en) | 2011-11-16 | 2016-09-27 | K2M, Inc. | System and method for spinal correction |
US8920472B2 (en) | 2011-11-16 | 2014-12-30 | Kspine, Inc. | Spinal correction and secondary stabilization |
US9468468B2 (en) | 2011-11-16 | 2016-10-18 | K2M, Inc. | Transverse connector for spinal stabilization system |
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US9687277B2 (en) * | 2012-05-16 | 2017-06-27 | Stichting Voor De Technische Wetenschappen | Implantation system for treatment of a defective curvature of the spinal column |
US9198767B2 (en) | 2012-08-28 | 2015-12-01 | Samy Abdou | Devices and methods for spinal stabilization and instrumentation |
US9320617B2 (en) | 2012-10-22 | 2016-04-26 | Cogent Spine, LLC | Devices and methods for spinal stabilization and instrumentation |
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US10857003B1 (en) | 2015-10-14 | 2020-12-08 | Samy Abdou | Devices and methods for vertebral stabilization |
US10744000B1 (en) | 2016-10-25 | 2020-08-18 | Samy Abdou | Devices and methods for vertebral bone realignment |
US10973648B1 (en) | 2016-10-25 | 2021-04-13 | Samy Abdou | Devices and methods for vertebral bone realignment |
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US1798223A (en) * | 1930-07-03 | 1931-03-31 | Frank L Ray | Aerial grade clamp |
US2349648A (en) * | 1942-06-30 | 1944-05-23 | American Steel & Wire Co | Cable highway guard |
US2422332A (en) * | 1944-03-06 | 1947-06-17 | Stephen P Becker | Connector |
US2426857A (en) * | 1945-01-17 | 1947-09-02 | Matthews W N Corp | Electrical connector |
US3779240A (en) * | 1972-03-31 | 1973-12-18 | S Kondo | Compression plate for osteosynthesis |
CH613858A5 (en) * | 1977-04-22 | 1979-10-31 | Straumann Inst Ag | |
US4289123A (en) * | 1980-03-31 | 1981-09-15 | Dunn Harold K | Orthopedic appliance |
FR2545350B1 (en) * | 1983-05-04 | 1985-08-23 | Cotrel Yves | DEVICE FOR SHRINKAGE OF THE RACHIS |
GB8333442D0 (en) * | 1983-12-15 | 1984-01-25 | Showell A W Sugicraft Ltd | Devices for spinal fixation |
US4696290A (en) * | 1983-12-16 | 1987-09-29 | Acromed Corporation | Apparatus for straightening spinal columns |
DE8404981U1 (en) * | 1984-02-18 | 1984-05-10 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | BOW GRIPPERS FOR PRINTING MACHINES |
DK152718C (en) * | 1984-09-11 | 1988-11-07 | Psa Ind Aps | Fastening clamps, especially for fastening of brackets on automobiles |
US4648388B1 (en) * | 1985-11-01 | 1995-10-31 | Acromed Corp | Apparatus and method for maintaining vertebrae in a desired relationship |
US4738251A (en) * | 1987-02-20 | 1988-04-19 | Codespi, Corporation | Correcting device for spine pathology |
GB8718708D0 (en) * | 1987-08-07 | 1987-09-16 | Mehdian S M H | Apparatus for treatment of spinal disorders |
-
1988
- 1988-11-04 GB GB888825909A patent/GB8825909D0/en active Pending
-
1989
- 1989-11-01 AR AR89315332A patent/AR245585A1/en active
- 1989-11-02 JP JP1511519A patent/JPH06128B2/en not_active Expired - Lifetime
- 1989-11-02 DE DE68915747T patent/DE68915747T2/en not_active Expired - Fee Related
- 1989-11-02 WO PCT/GB1989/001310 patent/WO1990004948A1/en active IP Right Grant
- 1989-11-02 BR BR898907151A patent/BR8907151A/en not_active IP Right Cessation
- 1989-11-02 EP EP89912463A patent/EP0399011B1/en not_active Expired - Lifetime
- 1989-11-02 AT AT89912463T patent/ATE106220T1/en not_active IP Right Cessation
- 1989-11-02 US US07/536,589 patent/US5366455A/en not_active Expired - Fee Related
- 1989-11-02 AU AU45076/89A patent/AU625616B2/en not_active Ceased
- 1989-11-03 ES ES8903738A patent/ES2017307A6/en not_active Expired - Fee Related
- 1989-11-03 CA CA002002174A patent/CA2002174A1/en not_active Abandoned
-
1990
- 1990-06-29 DK DK157690A patent/DK157690A/en not_active Application Discontinuation
- 1990-07-03 NO NO902974A patent/NO175732C/en unknown
Also Published As
Publication number | Publication date |
---|---|
ATE106220T1 (en) | 1994-06-15 |
DE68915747D1 (en) | 1994-07-07 |
EP0399011B1 (en) | 1994-06-01 |
AR245585A1 (en) | 1994-02-28 |
AU625616B2 (en) | 1992-07-16 |
WO1990004948A1 (en) | 1990-05-17 |
DK157690D0 (en) | 1990-06-29 |
BR8907151A (en) | 1991-02-26 |
NO902974D0 (en) | 1990-07-03 |
NO175732B (en) | 1994-08-22 |
EP0399011A1 (en) | 1990-11-28 |
DK157690A (en) | 1990-09-04 |
JPH06128B2 (en) | 1994-01-05 |
ES2017307A6 (en) | 1991-01-16 |
NO175732C (en) | 1994-11-30 |
AU4507689A (en) | 1990-05-28 |
DE68915747T2 (en) | 1994-12-22 |
NO902974L (en) | 1990-08-30 |
JPH03503496A (en) | 1991-08-08 |
GB8825909D0 (en) | 1988-12-07 |
US5366455A (en) | 1994-11-22 |
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Legal Events
Date | Code | Title | Description |
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FZDE | Discontinued |