Me me li laparoscopic cannula yog, nws ua haujlwm raws li lub pob zeb rau kev ntsuas qhov tseeb tsim peev txheej ntawm cov cuab yeej siv kho mob. Rau cov neeg tsim khoom, nws qhov ntau lawm yog ntau tshaj qhov sib dhos ntawm cov raj hlau lossis cov khoom yas; nws sawv cev rau kev sib tw nruj me ntsis nyob rau hauv cov khoom purity, kev kho cua sov txheej txheem thiab nto engineering. Nyob rau hauv lub ntiaj teb no minimally invasive kev lag luam, ua manufacturers tau tsim insurmountable kev sib tw moats los ntawm leveraging lawv dominance nyob rau hauv cov ntaub ntawv science.

Coj Karl Storz los ntawm lub teb chaws Yelemees ua piv txwv. Cov tsev neeg no - muaj kev lag luam txais yuavaerospace- qib 316L stainless hlauRaws li cov khoom tseem ceeb rau nws cov khoom tseem ceeb ntawm nws lub hauv paus Hoobkas hauv Tuttlingen, Lub teb chaws Yelemees. Nws cov engineers paub zoo tias rov ua kom tsis muaj menyuam thiab ntsuas kev sib txhuam thaum cov txheej txheem laparoscopic yuam kom nruj rau cov khoom siv corrosion thiab hardness. Raws li, Karl Storz tau tsim ib txoj kab ntau lawm uas npog smelting thiab txias forging. Cov txheej txheem txias forging txheej txheem rov kho cov qauv hlau lattice, ua kom muaj zog tiv thaiv ntawm cannula vaj tse. Cov chaw raug kho nrog tshwj xeeb electrolytic polishing, nrog rau qhov chaw roughness tswj ntawm qib micrometer los tiv thaiv cov ntaub so ntswg adhesion - ib qho kev ntsuas tsis ncav cuag rau ntau lub tuam txhab zoo tib yam.

Lub caij no, Ethicon, ib feem ntawm Johnson & Johnson, tau tsom mus rau daim ntawv thov ntawm titanium alloy. Titanium alloy features low density, high specific strength and excellent biocompatibility, yet it poses great processing challenges and is prone to tool sticking during machining. Txhawm rau hais txog qhov teeb meem ntawm titanium alloy, Ethicon tau txais Swiss-tso tawm qhov tsawg kawg nkaus Lubrication (MQL) machining chaw, thiab ua tiav titanium laparoscopic cannulas uas txo qhov hnyav tag nrho los ntawm ntau dua 30%. Cov khoom no tsis tsuas yog txo qhov qaug zog ntawm tes rau cov kws phais mob, tab sis kuj tau txais txiaj ntsig los ntawm titanium tsis yog - cov khoom sib nqus, ua rau lawv muaj peev xwm ua tau zoo nrog kev ua haujlwm sib nqus sib nqus Resonance Imaging (MRI) thiab nthuav dav heev siv cov xwm txheej phais.

Hauv thaj tsam ntawm cov pov tseg laparoscopic cannulas, cov tuam txhab suav nrog Medtronic thiab Kangji Kev Kho Mob tau ua ib qho kev hloov pauv hauv cov khoom tshwj xeeb polymers. Hloov cov pa polypropylene (PP) txhaj tshuaj molding, lawv txais siab -kev ua tau zoo Polyether Ether Ketone (PEEK). PEEK boasts hlau-zoo li rigidity thiab superior X-ray penetrability, tshem tawm cov duab artifacts tshwm sim los ntawm tsoos hlau cannulas thaum lub sij hawm kev phais. Cov neeg tsim khoom siv qhov tseeb ob- xim txhaj tshuaj molding rau seamlessly ua ke nruj PEEK cov raj sab nrauv nrog cov mos silicone sealing li qub, uas lav qhov nruj txaus rau kev sib tsoo thiab txhim khu kev qha airtightness kom tswj pneumoperitoneum.

Tsis tas li ntawd, kev kho mob antibacterial nto tau tshwm sim los ua ib qho kev sib tw tshiab. B. Braun tau tsim ib lub sijhawm ntev - ua haujlwm nyiaj - ion antibacterial txheej uas ua raws li cov khoom siv cannula. Cov txheej tsis tu ncua tso nyiaj ions thoob plaws hauv cov xuab moos- cov txheej txheem phais ntev los tiv thaiv kev tsim cov kab mob biofilms. Cov ntaub ntawv no-raws li kev tsim kho tshiab ncaj qha ua tau raws li tsev kho mob cov qauv nruj rau kev tiv thaiv qhov chaw phais mob (SSI).

Hauv kev xaus, kev sib tw ntawm cov tuam txhab laparoscopic cannula tau txav mus dhau qhov kev sib dhos yooj yim thiab kev ua haujlwm, thiab nkag mus rau theem siab ntawm kev tsom mus rau metallurgy ntawm cov khoom siv hlau, kev hloov kho cov ntaub ntawv polymer thiab cov thev naus laus zis kho mob. Nyob rau hauv lub neej yav tom ntej, raws li biodegradable magnesium alloys ua lag luam paub tab, kev lag luam yuav zoo li pom ib puag ncig tshiab ntawm cov khoom siv kho dua tshiab. Cov neeg tsim khoom lag luam uas ua tus thawj coj hauv kev tsim cov thev naus laus zis ntau lawm rau cov ntaub ntawv tshiab yuav tau txais txoj haujlwm tseem ceeb hauv - tiam tom ntej kev ua lag luam uas cuam tshuam tsawg kawg nkaus.