Vim li cas Menghini 16G tseem yog Thawj Qhov Kev Xaiv Rau Coagulation - Cov Neeg Mob Ciam Teb

https://www.mannersmedical.com/CNCMachiningParts/5.html

Ntawm cov teeb meem ntawm daim siab biopsy, los ntshav qib #1-subcapsular hematoma, intraperitoneal hemorrhage, tsis tshua muaj kev tuag (kev tuag ~ 1/10,000–1/25,000). Tsim kom muaj kev pheej hmoo muaj xws li: platelets<50×10⁹, INR >1.5, traversing intercostal cov hlab ntsha ntawm daim siab saum npoo, thiab cov koob loj heev sab nraud. Menghini txoj hauj lwm hauv qhov kev pheej hmoo matrix no yog qhov zoo dua li Tru-Tau caij nplooj ntoos hlav- cov khoom siv thauj khoom- thiab cov laj thawj nyob hauv nws cov qauv tsim.

koob tshuaj -Kev sib raug zoo ntawm sab nraud thiab los ntshav

Cov ntaub ntawv qhia txog qhov sib txawv: daim siab biopsy los ntshav yog ~ 2-3% rau 14G, ~ 1-1.5% rau 16G, thiab ~ 0.5-1% rau 18G. Vim Tru-Txiav caij nplooj ntoos hlav{11}} cov khoom siv thauj khoom yuav tsum "txiav ib lub voj voog tag nrho," lawv feem ntau pib ntawm 14–16G ​​(hauv qab no, lub caij nplooj ntoos hlav quab yuam tsis txaus thiab cov cores tawg yooj yim). Menghini aspiration tuaj yeem ntseeg tau qauv ntawm 18G, ua 16G nws "loj caliber" kev xaiv.

Yog li, rau cov neeg mob uas muaj cov platelets 60–80 × 10⁹ thiab INR 1.4–1.6-"borderline permissible" cohort- cov kws kho mob tau xaiv Menghini 18G dhau Tru-Cut 16G. Ob qhov ntsuas qhov me me txhais tau hais tias qhov kev poob qis hauv kev pheej hmoo los ntshav.

Bevel Angle thiab Insertion Pathway

The 20°–25° bevel angle of Menghini serves another purpose: sufficient "sharpness" minimizes tissue tearing when penetrating the liver capsule. Compare this to >35℃ntev bevels (qee cov ntawv luam tawm hauv tsev txhob txwm ua kom "yooj yim ntxig")-thaum lawv nkag mus rau hauv cov tshuaj ntsiav zoo, lawv tsim cov qhov txhab loj dua, ua rau ntau "kho los ntshav" thaum tshem tawm. Ntawm Western OEM txiav txim, 22.5℃yog qhov feem ntau cuam tshuam tus nqi.

Stylet "Plugging" Action thiab taug qab los ntshav

Menghini qhov kev ua haujlwm SOP suav nrog: "Reset the stylet ua ntej thim koob tom qab kuaj"- txhais tau tias cov stylet raug thawb rov qab mus rau qhov qhib bevel, tshem tawm cov qauv ntaub so ntswg mus rau hauv cov tais ntim khoom thaum tib lub sijhawm ntsaws cov kab. Raws li rab koob raug rho tawm, cov ntshav los ntawm cov ntaub so ntswg subcutaneous / subsurface daim siab tsis tuaj yeem siphon rau hauv cov kab noj hniav hauv peritoneal los ntawm lumen. Tru-Txiav tsis muaj qhov tshwj xeeb no (nws siv rab koob sib cais; thaum tshem tawm, lub cannula sab nraud rov qab ua ntej thaum lub trocar sab hauv nyob, tawm hauv txoj kev qhib). Rau cov neeg ua haujlwm muaj kev txhawj xeeb txog "khiav los ntshav"-xws li hauv kev hloov lub siab lossis cov ntaub so ntswg cirrhotic-Menghini + stylet- rov pib SOP yog qhov zoo dua zais.

Negative Pressure Value Design Correlation

The original Menghini protocol uses a 20 mL syringe pulled to 10–15 mL (i.e., -10 to -5 mL vacuum)-more is not better. Excessive vacuum (>15 mL kos tawm) tuaj yeem "suck-rupture" cov hlab ntsha subcapsular, dej nyab cov qauv nrog cov ntshav thiab cov ntaub so ntswg. Lub tshuab nqus tsev tsis txaus tsis ua rau aspirate tawv cirrhotic ntaub so ntswg. Thaum cov tuam txhab tsim cov "luer-lock lub tshuab nqus tsev txuas" ntawm lub hub, lub puab txoj kab uas hla yuav tsum phim 20 mL syringe's taper tip (ISO 80369-7 Luer standard); txwv tsis pub, intraoperative disconnection thiab lub nqus tsev vacuum los ua cov txheej txheem kev tsis txaus siab tshaj plaws rau Menghini koob.

⚠️ OEM Cov Lus Qhia Rau Cov Neeg Siv Khoom:​ Cov kab lus hauv Menghini's IFU-"rov pib dua stylet ua ntej rho koob"- yuav tsum tau luam tawm ua bold. Ntau cov ntawv luam tawm hauv tsev tshem tawm qhov no los ntawm lawv cov lus qhia; Cov kws kho mob tau siv rau Tru-Txiav "tshem tawm tam sim tom qab aspiration" xaus nrog cov ntshav los ntshav ib nrab ntawm feem pua ​​​​ntawm cov ntsiab lus siab dua- thiab cov lus tsis txaus siab thaum kawg tsaws ntawm cov chaw tsim khoom.