Dab tsi yog lub raj hypodermic?

Ib lub koob txhaj tshuaj hypodermic, tseem hu ua "hypodermic koob raj" lossis "kev kho mob qib koob", yog lub raj me me uas siv rau hauv cov ntawv kho mob, tab sis kuj tuaj yeem siv rau hauv cov ntawv tsis siv tshuaj kho mob. Lo lus "hypodermic" nws tus kheej txhais tau tias yog "hauv qab ntawm daim tawv nqaij," thiab kev lig kev cai, cov hlab ntsha hypodermic yog tsim nrog cov koob ntse rau kev txhaj tshuaj lossis tshem tawm cov kua dej lossis cov ntaub so ntswg rau hauv tib neeg lossis tsiaj lub cev.

Cov khoom lag luam no muaj ntau yam los ntawm cov koob ntse ntse siv ib leeg siv rau cov tshuaj tiv thaiv thiab tshuaj, kom cov koob tshuaj biopsy tsis zoo lossis cov koob tshwj xeeb me me siv los kho cov kab mob tsawg. Cov koob siv cov hypotubes uas tsim los ntawm Kev Coj Tus Cwj Pwm muaj los ntawm luv luv, me me txoj kab uas hla koob siv hauv ophthalmology mus rau txoj kab uas hla loj uas txuas ob peb taw ntev los pab rau kev sib kis ntawm nyuj lossis nees.

Feem ntau ua los ntawm 304 lossis 316 stainless hlau, cov hlab ntsha hypodermic yog qhov loj me raws li Stubbs Iron Gauge vim nws cov txheeb ze tus nqi-zoo thiab kev lees txais dav hauv daim ntawv thov kev kho mob. Tus pin gauge system qhia cov txheej txheem txheej txheej diameters, puab diameters thiab lawv cov kev tolerances nyob rau hauv ib tug stepped hom, uas qis gauge tooj txhais mus rau loj dua nominal thib ob conduit sab nraud thiab sab hauv diameters. Qhov ntau dua qhov ntsuas tus lej, qhov me dua OD / ID.

Hypodermic tubes feem ntau yog muag nyob rau hauv nruj mob. Kev ua haujlwm txias thaum lub raj ncab ua rau cov hlab ntsha nruj thiab muaj zog uas tsis yooj yim khoov lossis khoov thaum quab yuam siv ntev-ib qho uas xav tau, piv txwv li, rau cov khoom siv ntse ntse kom nkag mus rau cov ntaub so ntswg. Txawm li cas los xij, nws tuaj yeem tsim tau ntawm qhov nruab nrab lossis qhov kub nyhiab (mos) yog tias daim ntawv thov xav tau.

Cov kev cai tswj hwm kev qhia tshwj xeeb rau cov hlab ntsha hypodermic yog ASTM A908 (kab koob) lossis ISO 9626 - ob qho tib si uas muab qhov ntev, tshuaj lom neeg muaj pes tsawg leeg, thiab cov khoom siv tshwj xeeb rau kev txiav txim siab los ntawm tus neeg yuav khoom. Cov kev qhia tshwj xeeb qhia txog cov txheej txheem tsim khoom raws li "welding thiab kos duab," uas yog cov txheej txheem rau kev ua cov hlab ntsha hypodermic vim tias nws yog tus nqi-zoo thiab muaj pov thawj zoo hauv daim teb. Thaum lub sij hawm vuam thiab kos cov txheej txheem, tiaj tus stainless hlau sawb yog dov mus rau hauv ib lub raj, tungsten inert gas yog welded raws lub weld, thiab ces kos hla lub floating plug / mandrel kom loj lub raj mus rau qhov kawg xav tau qhov ntev. Cov txheej txheem ntsaws kuj tseem ua ke nrog thaj tsam weld mus rau hauv seem ntawm lub raj, uas ua rau lub raj rub tau zoo nrog "seamless saib" nrog ib txoj kab nruab nrab du thiab txhim kho sab hauv txoj kab uas hla.

Haum rau ntau yam kev kho mob thiab tsis siv tshuaj kho mob, ntau yam stainless hlau hypodermic hlab muaj nyob rau hauv txhua qhov ntev los yog cov ntaub ntawv fabricated yog cov ntaub ntawv pov thawj xaiv rau cov khoom uas twb muaj lawm thiab pib taw tes rau cov haujlwm tshiab hauv kev txhim kho.