Nyob rau hauv lub realm ntawm precision instruments rau lub regional tshuaj loog thiab kev tswj mob, lub22G (Gaug)Tus kab mob epiduraloccupies ib tug pivotal txoj hauj lwm. Situated li tus"golden txhais tau tias"​​ntawm qhov loj dua 18G thiab cov koob 25G zoo dua, 22G Tuohy muaj qhov sib npaug tshwj xeeb ntawm qhov kev raug mob tsawg thiab cov txheej txheem nruj, ua rau nws qhov kev xaiv zoo tshaj plaws rau nruab nrab - cov teeb meem nyuaj thiab cov neeg mob tshwj xeeb.

1. Dimensions thiab Physical Properties

CovKev ntsuas (G)system yog tus txheej txheem thoob ntiaj teb rau kev ntsuas rab koob sab nraud; tus lej siab dua qhia txog txoj kab uas hla zoo dua.

• Sab nraud txoj kab uas hla (OD):Kwv yees li0.7mm ib.
• Inner Diameter (ID):Kwv yees li0.5 hli​ (nws txawv me ntsis nyob ntawm seb nws puas yog nyias - phab ntsa lossis tus qauv - phab ntsa tsim).
• Qhov "Sweet Spot" Advantage:
• Piv rau 16G / 18G:​ Qhov tseem ceeb txo cov nqaij ntshiv, txo qhov tshwm sim ntawm CSF to, thiab txo qhov kev pheej hmoo ntawm Post-Dural Puncture Headache (PDPH).

Piv rau 25G / 27G:Tswj kom txauslub zog (rigidity)los tiv thaiv deflection thaum nkag mus rau lub ligamentum flavum resistant, kom ntseeg tau kev tswj tsis tau buckling.

2. "J-Tip" Geometry thiab Back-Qhov Muag Tsim

Lub ntsiab feature ntawm Tuohy koob yog nws15℃-30℃nkhaus "J-tip" (Huber point).

• Curvature Radius:​ Precision-engineered tso cai rau lub catheter tig mus rau hauv qhov chaw epidural yam tsis muaj kev ntxhov siab ntau dhau ntawm cov ntaub so ntswg.
• Deflecting Action:Qhov nkhaus nkhaus ua raws li ntuj tsimbaffle, zawv zawg raws dura mater ntau dua li tho nws, yog li txo qhov kev pheej hmoo ntawm kev sib tsoo dural.

Rov qab-Qhov muag:

• Qhov chaw:Ib qho chaw nres nkoj oval nyob ntawm qhov nkhaus sab hauv ntawm rab koob, kwv yees li1 cm ibproximal rau lub ntsis.
• Muaj nuj nqi:Ua haujlwm raws li kev tawm mus rau epidural catheter.
• Ua tiav:Cov ntug yuav tsum yogelectropolished rau daim iav tiav(deburred) los tiv thaiv shearing los yog scraping lub catheter nto, uas yuav ua rau catheter fragmentation los yog embolization.

3. Cov cim qhov tob thiab cov lus pom zoo

• Laser Etching:​ High-zoo 22G koob muaj meej meejcentimeter (cm) cov cimpib los ntawm qhov kawg, ua kom yooj yim tswj qhov tob.
• Loss of Resistance (LOR) Dynamics:22G lumen muab kev pom zoo tactile rhiab heev rau cov txheej txheem LOR.
• Ligamentum Flavum:Kev tiv thaiv siab yog xav tiv thaiv lub plunger ntawm iav koob txhaj tshuaj.
• Epidural Chaw:Thaum ua txhaum qhov chaw, qhov kev tawm tsam ploj mus tam sim vim qhov tsis zoo siab.
• Ergonomic Cov Lus Qhia:​ Qhov ntsuas 22G muab qhov sib txawv "pop" qhov xav tau- pom ntau dua li 18G koob tab sis muaj zog dua li 25G koob.

4. Kev sib raug zoo thiab kev siv tshuaj kho mob

Catheter haum:Sab hauv txoj kab uas hla yog tshwj xeeb calibrated kom haum raws li tus qauv19G lossis 20G epidural catheters. Qhov nruj nruj no tiv thaiv cov ntshav rov qab los / CSF ntws thiab txo qhov kev pheej hmoo ntawm cov kab mob catheter - muaj feem cuam tshuam.

Clinical Scenarios:

Labor analgesia (tshwj xeeb tshaj yog nyob rau hauv multiparous los yog slender cov neeg mob).

Postoperative mob mob tswj.

Xaiv qhov mob mob ntev uas xav tau qhov profile me dua.

Cov ntsiab lus

Cov22G Tuohy epidural koob​ tsis yog tsuas yog scaled -down version ntawm nws cov counterparts loj. Nws yog ib tug sophisticated cov cuab yeej kho mob engineered los ntawm cov hauv paus ntsiab lus ntawmCov dej dynamics, cov khoom siv mechanics, thiab tib neeg lub cev. Nws ua tiav qhov kev pom zoo sib npaug ntawmminimally invasive nkagthiabkev ua tau zoo.