Peb Lub Tswv Yim AVF koob: Vim li cas 17G Universal Tsis Muaj

Ib qho Arteriovenous Fistula(AVF) is "lifeline" rau cov neeg mob uremic - ib qho kev phais tsim kev sib txuas ntawm cov hlab ntsha radial thiab cephalic vein uas arterializes cov hlab ntsha, ua rau tuab -walled, siab - ntws hlab ntsha. Txawm li cas los xij, txhua tus neeg mob lub fistula sib txawv heev hauv kev loj hlob, phab ntsa thickness, thiab qhov tob. Raws li qhov tshwm sim, txawm hais tias AVF koob feem ntau tau teev nyob rau hauv cov ntawv qhia tshwj xeeb raws li tsuas yog "17G × 25-27 mm," lub koob taub geometry tiag tiag los ntawm peb hom: Rochester tip (ntse bevel), Tapered ncej (ntev bevel + txo - txoj kab uas hla), thiab Bullet / Round} cov ntsiab lus sib txawv rau txhua qhov sib txawv {{10}. Yog tias ib lub chaw tsim khoom siv tsuas yog "17G tus qauv ntse ntse," qhov kev tsis txaus siab ntawm kev kho mob yuav tsis txaus siab.

Rochester Tip: Thawj Kev Xaiv rau kev paub tab, Superficial Fistulas

Lub classic luv bevel (15℃-20 degree) concentrates puncture force, ua rau nws haum rau ib txwm radiocephalic fistulas uas yog superficial nrog matured, thickened venous phab ntsa. Lub zog nkag mus ntawm 50–100 g (0.5–1.0 N) raug suav rau Kev Coj Tus Cwj Pwm 'AVF koob yog benchmarked ntawm Rochester ntse taub - siab tshaj tus qauv 17G hypodermic koob (~ 30–50 g) vim AVF koob muaj cov phab ntsa tuab (OD 1.45 mm. 1 mm / ID, 3 phab ntsa) arterialized venous phab ntsa, tejzaum nws nrog nyias fibrous sheath. Tshaj 90% ntawm "tus qauv AVF koob" los ntawm Western hom (Terumo, JMS, Nipro) yog Rochester variants.

Tapered Ncej (Taper): Sib sib zog nqus Fistulas & Cov neeg mob rog rog

When the fistula runs deep (>6 mm subcutaneous) or the patient's BMI >30, tus qauv Rochester taub tau yooj yim nkag mus rau sab nraud ntawm phab ntsa (arterialized veins feem ntau yog 6-10 mm nyob rau hauv txoj kab uas hla; tag nrho nkag mus ua hematoma). Ib rab koob tapered muaj nyob rau hauv pem hauv ntej 5-8 hli ntawm cov ncej hauv av conically, nrog OD maj mam txo los ntawm 1.45 hli mus rau ~ 1.30 hli. Lub taub tseem yog ib qho ntse bevel, tab sis lub ncej "dilates txoj kev ces stabilizes nce qib." B. Braun's AvF series thiab siab -kawg kab los ntawm Tuam Tshoj's Baihe Medical suav nrog qhov kev xaiv no. Cov teeb meem tsim khoom yog nyob rau hauv "CNC sib tsoo lub taper + ua kom lub 5-axis laser sab- qhov tsis perforate lub thinned phab ntsa" - phab ntsa thickness ntawm lub thinnest ib feem ntawm lub taper yog 0.10 hli, thiab txawm me ntsis laser zog drift ua rau kub hnyiab tau.

Bullet / Rounded Tip (Ball Tip): Aneurysmal lossis Hnyav Punctured Fistulas

Long-term dialysis (>3 xyoos) feem ntau ua rau lub zos aneurysmal dilation lossis phab ntsa calcification. Rochester lub taub hau ntawm ntug ntse tuaj yeem txhuam cov plaques, ua rau cov ntshav khiav thiab tom qab -op hematoma. Cov mos txwv taub muaj nws cov hauv av bevel mus rau ib puag ncig profile (R0.3-0.5), tsa lub zog rau 80-120 g tab sis ua softer ntawm fistulas friable. JMS's "Soft Touch" series thiab Terumo's SV kab ua raws li tus qauv no. Hauv tsev, cov lus qhia pob SKUs tsuas yog 8-12% ntawm OEM xaj, tab sis ncav cuag 30%+ hauv kev ua lag luam Nyiv Pooj - a 刚需 (qhib thov) rau cov neeg laus dialysis nrog ntev - sawv fistulas.

Chaw tsim tshuaj paus xaiv Logic

Thaum Western hom tso AVF OEM xaj (piv txwv li, nrog Kev Coj Tus Cwj Pwm hauv Tuam Tshoj), rab koob taub geometry tau hais hauv peb theem: Rochester tus qauv raws li tus nqi pib; Taper +8–12%; Cov lus qhia ntawm cov mos txwv +15-20% (cov kauj ruam sib tsoo ntxiv + qis tawm). Lub Hoobkas hauv tsev hais txog tsuas yog "17G tus qauv ntse ntse" tau lees paub ~ 30% ntawm cov neeg Nyij Pooj thiab European siab - xaus kev lag luam lim ntshav.

Tswv yim rau kev muag khoom OEM:"17G" rau AVF koob tsuas yog qhov pib. Sib piv cov lus qhia geometry rau hom fistula yog qhov uas cov tswv lag luam yuav them tus nqi. Sau Rochester / Taper / Pob sib cais hauv koj cov lus hais - nws yog kev tshaj lij tshaj li "17G universal."