1.5 isikulufu sokuzibhoboza

1.5 isikulufu sokuzibhoboza Isithombe esifakiwe
  • 1.5 isikulufu sokuzibhoboza

Incazelo emfushane:

Isicelo

Ukubuyiselwa nokwakhiwa kabusha kwe-Neurosurgery, lungisa ukukhubazeka kwe-cranial, ukusiza ukwakha kabusha izidingo ze-cranium ezimaphakathi noma ezinkulu, ukulungisa isikulufu esinepuleti lethambo.


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Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Okubalulekile:ingxubevange ye-titanium yezokwelapha

Ukucaciswa komkhiqizo

imininingwane (2)

Into No.

Ukucaciswa

11.07.0115.004124

1.5*4mm

I-Non-anodized

11.07.0115.005124

1.5*5mm

11.07.0115.006124

1.5*6mm
imininingwane (1)

Into No.

Ukucaciswa

11.07.0115.004114

1.5*4mm

I-anodized

11.07.0115.005114

1.5*5mm

11.07.0115.006114

1.5*6mm

Izici:

•ingxubevange ye-titanium engenisiwe ukuze kuzuzwe ubulukhuni obuhle kakhulu nokuguquguquka okufanele

•I-Switzerland TONRNOS CNC i-lathe yokusika ezenzakalelayo

•inqubo eyingqayizivele ye-oxidation, ithuthukisa ubulukhuni bobuso be-screw kanye nokumelana nokugqoka

12

Ithuluzi elifanayo:

umshayeli we-screw head screw: SW0.5 * 2.8 * 75mm

isibambo sokuhlanganisa esisheshayo esiqondile

Amapuleti ephrofayili ephansi kakhulu asemaphethelweni ane-chamfered kanye nephrofayili yepuleti elibanzi akunikeza cishe ukutholakala kwesandla. Itholakala ngobude obungokwezifiso kakhulu.

Izinzuzo ze-titanium alloy screws:

1. Amandla aphezulu. Ukuminyana kwe-titanium ngu-4.51g/cm³, ephakeme kunaleyo ye-aluminium futhi iphansi kunaleyo yensimbi, ithusi ne-nickel, kodwa amandla aphezulu kakhulu kunawezinye izinsimbi. Isikulufu esenziwe nge-titanium alloy silula futhi siqinile.
2. Ukumelana nokugqwala okuhle, i-titanium ne-titanium alloy emithonjeni eminingi zizinzile, izikulufo ze-titanium alloy zingasetshenziswa endaweni ehlukahlukene egqwala kalula.
3. Ukumelana nokushisa okuhle nokumelana nokushisa okuphansi.Izikulufu ze-Titanium alloy zingasebenza emazingeni okushisa afinyelela ku-600 ° C futhi asuse 250 ° C, futhi angagcina umumo wawo ngaphandle kokushintsha.
4. I-Non-magnetic, non-toxic.I-Titanium iyinsimbi engenazibuthe futhi ngeke ize yenziwe uzibuthe ezindaweni eziphakeme kakhulu zikazibuthe.Hhayi nje kuphela ezingenabuthi, futhi inokuhambisana okuhle nomzimba womuntu.
5. Ukusebenza okuqinile kwe-anti-damping.Uma kuqhathaniswa nensimbi nethusi, i-titanium inesikhathi eside kunazo zonke sokunciphisa ukudlidliza ngemva kokudlidliza kwemishini kanye nokudlidliza kukagesi.Lokhu kusebenza kungasetshenziswa njengamafoloko okulungisa, izingxenye zokudlidliza zama-grinders ezokwelapha ze-ultrasonic namafilimu okudlidliza wezipikha zomsindo ezithuthukisiwe.

Idizayini yochungechunge yokuqalisa isikulufu esisheshayo kanye netorque ephansi yokufaka. Ukukhethwa okubanzi kwamapuleti nemeshi, kufaka phakathi ama-mastoid namameshe esikhashana, kanye nembobo ye-burr hole yama-shunts.

Uma isikulufu siqinile, kungcono?

Izikulufu zivame ukusetshenziswa ekuhlinzweni kwamathambo ukuze kucindezelwe indawo yokuphuka, ukulungisa ipuleti ethanjeni, nokulungisa ithambo kuhlaka lwangaphakathi noma lwangaphandle lokulungisa.Ingcindezi esetshenziswa ukuminyanisa isikulufu ethanjeni ilingana netorque esetshenziswa udokotela ohlinzayo.

Kodwa-ke, njengoba amandla e-torque akhula, isikulufu sithola amandla amakhulu e-torque (i-Tmax), ngaleso sikhathi amandla okubamba isikulufu ethanjeni ayancipha futhi akhishwe ibanga elincane.Amandla okudonsa ngaphandle (i-POS) ingcindezi yokusonta isikulufu siphume ethanjeni. Ivamise ukusetshenziswa njengepharamitha ukukala amandla okubamba isikulufu.Okwamanje, ubudlelwano phakathi kwetorque ephezulu namandla okudonsa akukaziwa.

Ngokomtholampilo, odokotela abahlinzayo bamathambo ngokuvamile bafaka isikulufu esino-86% Tmax. Nokho, u-Cleek et al. ithole ukuthi ukufakwa kwesikulufu esingu-70% Tmax ku-tibia yezimvu kungafinyelela i-POS ephezulu, okubonisa ukuthi amandla okuvivinya ngokweqile angasetshenziswa emtholampilo, okunganciphisa ukuzinza kokulungiswa.

Ucwaningo lwakamuva lwe-humerus emigodini yabantu nguTankard et al. ithole ukuthi i-POS ephezulu itholwe ku-50% Tmax. Izizathu eziyinhloko zomehluko emiphumeleni engenhla kungase kube ukungahambisani kwezibonelo ezisetshenzisiwe kanye namazinga okulinganisa ahlukene.

Ngakho-ke, uKyle M. Rose et al. kusukela e-United States kukala ubudlelwano phakathi kwe-Tmax ehlukene kanye ne-POS ngezikulufu ezifakwe ku-tibia ye-cadaver yomuntu, futhi kwahlaziya ubudlelwano phakathi kwe-Tmax ne-BMD nokuqina kwethambo le-cortical. Leli phepha lisanda kushicilelwa ku-Techniques in Orthopedics. Imiphumela ibonisa ukuthi i-POS ephezulu nefanayo ingatholakala ku-70% kanye no-90% we-torque ye-90% Tmax ne-screw% ye-90% Tmax inkulu kakhulu kunaleyo ka-100% Tmax. Kwakungekho umehluko ku-BMD nokuqina kwe-cortical phakathi kwamaqembu e-tibia, futhi kwakungekho ukuhlobana phakathi kwe-Tmax nalokhu okubili okungenhla.Ngakho-ke, ekusebenzeni komtholampilo, udokotela ohlinzayo akufanele aqinise isikulufu ngamandla amakhulu we-torsion, kodwa nge-torque kancane kancane kune-Tmax. Nakuba u-70% kanye no-90% Tmax bengafinyelela i-POS efanayo, kusenezinzuzo ezithile zokuqinisa isikulufu, kodwa i-torque akumele idlule u-90%, ngaphandle kwalokho umphumela wokulungisa uzothinteka.

Umthombo: Ubudlelwano Phakathi Kwetorque Efakwayo kanye Nokuqina Kokukhipha Izikulufu Zokuhlinza.Izindlela Ze-Orthopaedics: Juni 2016 - Umqulu 31 - Ukukhishwa 2 - p 137–139.

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