1.5 isikrufu sokuzibhora

1.5 self-drilling screw Umfanekiso ofakiweyo
  • 1.5 isikrufu sokuzibhora

Inkcazelo emfutshane:

Isicelo

Ukubuyiselwa kunye nokwakhiwa ngokutsha kwe-Neurosurgery, ukulungisa iziphene zecranial, ukunceda ukwakha kwakhona iimfuno zecranium eziphakathi okanye ezinkulu, ukulungisa isikrufu ngepleyiti yethambo.


Khuphela njengePDF

Iinkcukacha zeMveliso

Iithegi zeMveliso

Izinto:ingxubevange ye-titanium yonyango

Ukuchazwa kwemveliso

iinkcukacha (2)

Inombolo yomba.

Inkcazo

11.07.0115.004124

1.5*4mm

Non-anodized

11.07.0115.005124

1.5*5mm

11.07.0115.006124

1.5*6mm
iinkcukacha (1)

Inombolo yomba.

Inkcazo

11.07.0115.004114

1.5*4mm

Anodized

11.07.0115.005114

1.5*5mm

11.07.0115.006114

1.5*6mm

Iimbonakalo:

•I-alloy ye-titanium evela kumazwe angaphandle ukufikelela obona bunzima kunye nokuguquguquka okufanelekileyo

•Switzerland TONRNOS CNC ngokuzenzekelayo ukusika lathe

•Inkqubo ekhethekileyo ye-oxidation, ukuphucula ubulukhuni bomphezulu we-screw kunye nokumelana nokunxiba

12

Isixhobo esithelekisayo:

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

umqheba wokudibanisa okhawulezayo

Iipleyiti zeprofayili ephantsi kakhulu ezichamfered imiphetho kunye neprofayile yepleyiti ebanzi ayinikezeli ngokubonakalayo. Ifumaneka ngobude obulungiselelwe ngakumbi.

Izinto ezilungileyo ze-titanium alloy screws:

1. Amandla aphezulu. Uxinzelelo lwe-titanium yi-4.51g/cm³, lungaphezulu kunolwe-aluminiyam kwaye lungaphantsi kunentsimbi, ikopolo kunye nenikeli, kodwa amandla angaphezulu kakhulu kunezinye iintsimbi. I-Screw eyenziwe nge-titanium alloy ilula kwaye yomelele.
2. Ukumelana ne-corrosion efanelekileyo, i-titanium kunye ne-titanium alloy kumajelo amaninzi azinzile kakhulu, izikrufu ze-titanium alloy zingasetyenziselwa kwiindawo ezahlukeneyo ezilula ngokulula.
3. Ukumelana nobushushu obuhle kunye nokumelana nokushisa okuphantsi. Izikrufu ze-Titanium alloy zingasebenza kumaqondo okushisa ukuya kwi-600 ° C kunye ne-250 ° C, kwaye inokugcina imilo yazo ngaphandle kokutshintsha.
4. I-non-magnetic, non-toxic.Titanium sisinyithi esingenamagnetic kwaye ayizukwenziwa imagnethi kwiindawo eziphezulu kakhulu zemagnethi.Ayiyo-non-toxic kuphela, kwaye inokuhambelana kakuhle nomzimba womntu.
5. Ukusebenza okunamandla okuchasana nokumanzi.Xa kuthelekiswa nentsimbi kunye nobhedu, i-titanium inexesha elide lokunciphisa i-vibration emva kwe-vibration yomatshini kunye ne-vibration yombane.Le ntsebenzo ingasetyenziselwa iifolokhwe zokucoca, iinqununu ze-vibration ze-grinders zonyango ze-ultrasonic kunye neefilimu ze-vibration ze-audio zomsindo eziphambili.

Idizayini yomsonto yokuqalisa isikrufu ngokukhawuleza kunye netorque ephantsi yokufaka. Ukhetho olubanzi lweepleyiti kunye ne-mesh, kubandakanya i-mastoid kunye ne-meshes yesikhashana, kunye nezigqubuthelo zemingxuma ye-burr ye-shunts.

Okukhona isikrufu siqina, kokukhona kungcono?

Izikrini zisetyenziswa ngokuqhelekileyo kwi-orthopedic operation ukuxinzelela indawo yokuphuka, ukulungisa iplate kwithambo, kwaye ulungise ithambo kwisakhelo sokulungiswa kwangaphakathi okanye kwangaphandle.Uxinzelelo olusetyenziselwa ukukhama i-screw kwithambo lulingana ne-torque esetyenziswe ngugqirha.

Nangona kunjalo, njengoko amandla e-torque enyuka, i-screw ifumana amandla aphezulu e-torque (i-Tmax), ngelo xesha i-screw's hold force on the bone iyancipha kwaye ikhutshwe ngaphandle komgama omncinci. Ihlala isetyenziselwa iparameter ukulinganisa amandla okubamba i-screw. Okwangoku, ubudlelwane phakathi kwe-torque ephezulu kunye nokukhupha amandla ayaziwa.

Ngokonyango, oogqirha bamathambo badla ngokufaka isikrufu malunga ne-86% Tmax.Nangona kunjalo, uCleek et al. ifumanise ukuba i-70% ye-Tmax yokufakela isikrufu kwi-tibia yegusha inokufikelela obona buninzi be-POS, ebonisa ukuba amandla okuxhatshazwa ngokugqithisileyo anokusetyenziswa ekliniki, okuya kunciphisa uzinzo lokulungiswa.

Uphononongo lwakutsha nje lwe-humerus kwi-cadavers yabantu nguTankard et al. ifumene ukuba i-POS ephezulu ifunyenwe kwi-50% Tmax. Izizathu eziphambili zeeyantlukwano kwiziphumo ezingentla zingaba ukungahambelani kweempawu ezisetyenzisiweyo kunye nemigangatho eyahlukeneyo yokulinganisa.

Ngoko ke, uKyle M. Rose et al. ukusuka eUnited States yalinganisa ubudlelwane phakathi kwe-Tmax eyahlukeneyo kunye ne-POS ngezikrufu ezifakwe kwi-tibia ye-cadavers yabantu, kwaye yahlalutya kwakhona ubudlelwane phakathi kwe-Tmax kunye ne-BMD kunye ne-cortical bone thickness.Iphepha lisanda kupapashwa kwiiTechniques kwi-Orthopedics.Iziphumo zibonisa ukuba i-POS ephezulu kunye efanayo inokufumaneka kwi-70% kunye ne-90% ye-screw ye-screw ye-90% ye-Tmax ye-90% Tmax kunye ne-90% Tmax inkulu kakhulu kune-100% Tmax. Kwakungekho nantlukwano kwi-BMD kunye nobukhulu be-cortical phakathi kwamaqela e-tibia, kwaye kwakungekho nxu lumano phakathi kwe-Tmax kunye nezi zimbini zingasentla.Ngoko ke, ekusebenzeni kweklinikhi, ugqirha akufanele aqinise i-screw kunye nobukhulu be-torsion force, kodwa kunye ne-torque encinci ngaphantsi kwe-Tmax. Nangona i-70% kunye ne-90% ye-Tmax inokufezekisa i-POS efanayo, kusekho ezinye iingenelo zokuqinisa ngokugqithiseleyo i-screw, kodwa i-torque akufanele idlule i-90%, ngaphandle koko umphumo wokulungiswa uya kuchaphazeleka.

Umthombo: Ubudlelwane phakathi kweTorque yokuFakela kunye ne-Pullout Strength of Surgical Screws.Techniques in Orthopaedics: June 2016 - Volume 31 - Issue 2 - p 137-139.

  • Ngaphambili:
  • Okulandelayo:

    • IIMVELISO EZINXULUMENEYO