Tus Tsim Secrets Tom Qab Siab -Quality Tissue Cores in Vacuum-Assisted Breast Biopsy Needles

VABB koob sib txawv los ntawm tus qauv core biopsy koob los ntawm "kev pab lub tshuab nqus tsev + rotational txiav." Ib sab -mounted qauv thais rau sab nrauv cannula siv lub siab tsis zoo los kos cov ntaub so ntswg rau hauv lub qhov rais; lub puab rotating cutter ces cais cov qauv, thauj nws mus rau lub collection chamber. Cov txheej txheem no hinges nkaus rau ntawm qhov ntsuas geometry thiab txiav ntug tsim.

Sample Notch Design Logic

Notch ntev dictates siab tshaj ib zaug -core ntev (feem ntau 15–23mm); dav thiab qhov tob tswj lub tshuab nqus tsev dynamics thiab cov ntaub so ntswg kom ntim. Cov ntug feem ntau muaj qhov micro-chamfer lossis lub vojvoog (R0.05–0.1mm) kom txo qis cov ntaub so ntswg. Ib qho kev sib tw ntse heev txhawb nqa shearing hla kev noj qab haus huv- feem ntau cov qauv tsim muaj kev hloov pauv me me ntawm tus ntiv tes xoo los coj cov ntaub so ntswg nkag. Loj-ntev 10G notches haum kom tau txais cov cores tsis zoo rau kev kuaj tshuaj hormone receptor/IHC; 14G notches yog qhov zoo tshaj plaws rau kev ua piv txwv ntawm microcalcifications, txo kev raug mob.

Txiav ntug-Inner Cutter Bevel & Hardening

Lub sab hauv cutter ntsis feem ntau nta ib tug 30℃-45℃helical los yog ncaj bevel, tsim ib tug shearing ntug uas interacts nrog lub notch lub trailing ntug. Qee lub chaw tsim khoom siv hauv cheeb tsam qis- qhov kub thiab txias los yog siv 17-4PH steel rau xaiv hardening (HRC 48–52) los tiv thaiv ntug yob- dhau. Ntug symmetry cuam tshuam cuam tshuam rau kev txiav quab yuam sib txawv -Swiss- hom tshuab dhos tho txawv ua ke nrog 200x qhov projection microscopy zoo tswj qhov no. Kev txiav quab yuam ntau "crushes" fibro-glandular cov ntaub so ntswg es tsis huv severing nws, fragmenting specimens; quab yuam tsis txaus yuav ua rau muaj kev cuam tshuam los ntshav.

Nto Roughness & Coating Considerations

Electropolishing ua tiav Ra ​​<0.2μm ntawm sab hauv / sab nraud lumens, tiv thaiv cov ntaub so ntswg los ntawm adhering thiab ua rau blockages. Qee cov kab premium siv micro-abrasive blasting (tswj Al₂O₃ grit) rau thaj tsam qhov chaw, ua kom zoo dua qhov sib piv ntawm ultrasound yam tsis muaj kev cuam tshuam smoothness. Polymer txheej yog nruj me ntsis zam vim muaj kev pheej hmoo ntawm flaking thiab txawv teb chaws lub cev residues.

Kev tsis zoo siab Flow Path Matching

Tus ntoo khaub lig- ntu ntu nruab nrab ntawm qhov chaw nres nkoj cannula thiab lub tshuab nqus tsev vacuum cuam tshuam qhov kev xav tau nrawm. Txoj kev nqaim ntau dhau qeeb cov ntaub so ntswg noj; Cov dav dav dav tuaj yeem cuam tshuam cannula txhav. Mature designs leverage CFD simulations rau optimization thiab calibrate pom zoo qib nqus tsev vacuum (feem ntau -60 txog -80 kPa) matched rau host twj tso kua mis tsis.

Thaum kawg, koob VABB zoo tshaj plaws ua ke:Optimal Notch Volume + Ntse, Symmetrical Shear Edge + Daim iav - Lumen Polishing + Matched Nqus Flow Path.​ Kev tsis saib xyuas txhua lub ntsiab lus ua rau muaj kev cuam tshuam rau kev ua tau zoo- qhov ntsuas tsis tau teeb tsa OEM cov chaw tsim khoom yuav tsum ua kom rov zoo dua nrog cov neeg siv tshuaj kho mob thaum lub sijhawm ua haujlwm ua haujlwm.