Core Structural Design Thiab Atraumatic Ua Haujlwm Txoj Cai Ntawm Atraumatic Pencil Point Spinal Needle
Aug 05, 2026
https://www.bmj.com/content/361/bmj.k1920
1. Taw qhia
The atraumatic mem hluav point spinal needleyog ib qho kev txhaj tshuaj tshwj xeeb thiab cov cuab yeej kho mob tshwj xeeb tshwj xeeb rau hauv kev kho mob txha caj qaum thiab kev kuaj mob lumbar puncture cov txheej txheem. Qhov sib txawv ntawm cov tsoos txiav- hom Quincke point spinal needles, cov cuab yeej kho mob no siv cov cwj mem tshiab tshiab - zoo li tus qauv blunt tip qauv, uas rov sau cov ntaub so ntswg nkag mus rau cov khoom siv lumbar puncture. Raws li ib qho tseem ceeb ntawm kev siv tshuaj tua kab mob tsawg kawg nkaus hauv ntiaj teb kev tshuaj loog thiab cov chaw kho mob paj hlwb, tus cwj mem atraumatic mem hluav taw tes txha caj qaum yog tsim los daws qhov ntev -kev kho mob cov ntsiab lus ntawm cov ntaub so ntswg ntau dhau, cov teeb meem tom qab mob siab, thiab cov neeg mob qeeb rov qab los ntawm cov tshuaj ntse ntse - cov koob tshuaj. Nrog rau cov qauv tsim qauv, kev ua haujlwm ruaj khov ntawm lub cev, thiab biocompatibility zoo heev, nws tau dhau los ua cov cuab yeej zoo tshaj plaws rau siab -tus qauv lumbar puncture kuaj mob thiab phais txha caj qaum thoob ntiaj teb.
2. Cim Pencil Point Atraumatic Structure Zoo
Qhov tseem ceeb ntawm kev sib tw ntawm atraumatic mem hluav point spinal needle lies nyob rau hauv nws tshwj xeeb atraumatic puncture qauv. Ib txwm Quincke point koob vam khom rau cov npoo ntse kom nkag mus rau ntawm daim tawv nqaij, cov ntaub so ntswg subcutaneous, thiab tus txha caj qaum dura mater, uas ncaj qha txiav tawm dural fibers thiab cov ntaub ntawv tsis xwm yeem, tsis yog - tus kheej - kho qhov txhab mob. Qhov kev puas tsuaj uas tsis tuaj yeem rov qab los no yog thawj qhov ua rau tom qab ua haujlwm cerebrospinal kua ntws tawm thiab ntau yam sib tsoo- ntsig txog sequelae. Nyob rau hauv sib piv, lub atraumatic mem hluav taw tes spinal koob tso tseg tag nrho cov qauv txiav thiab txais ib tug du, rounded blunt mem hluav taub. Thaum lub sij hawm tag nrho cov txheej txheem puncture, rab koob lub cev tsis txiav ib tug tib neeg cov ntaub so ntswg fibers tab sis maj mam sib cais thiab stretches dural thiab mos cov ntaub so ntswg fibers raws lub ntuj anatomical gaps.
Hom kev sib cais lub cev no tiv thaiv kev ncaj ncees ntawm tus txha caj qaum dural fibers. Tom qab lub koob tau muab tshem tawm thaum ua tiav cov tshuaj loog lossis cov kua dej cerebrospinal, cov elastic dural fibers tuaj yeem rov ua dua tshiab thiab kaw cov qhov txhab me me, zoo thaiv cov kua cerebrospinal exudation los ntawm qhov chaw. Lub optimized lateral kua qhia lub qhov tsim ntxiv txhim khu cov khoom cov kev soj ntsuam practicability, kom ntseeg tau tias du thiab sai outflow ntawm cerebrospinal kua rau cov kab mob kom raug thiab uniform, ruaj khov txhaj tshuaj loog rau cov leeg txha caj qaum. Ib qho kev sib koom ua ke -cov qauv molding tshem tawm qhov sib txawv ntawm qhov sib txawv thiab cov ntsiab lus tsis muaj zog ntawm cov qauv, tsis txhob ua kua dej, koob lub cev deformation, thiab tawg thaum lub sijhawm ua haujlwm kho mob.
3. Cov khoom sib xyaw ua ke thiab kev ua tau zoo ntawm lub cev
Cov cwj mem mem hluav taw tes txha caj qaum feem ntau yog ua los ntawm qib siab -kev kho mob purity- qib stainless hlau, kub- tus qauv raw khoom rau kev siv tshuaj tua kab mob. Cov khoom no muaj cov yam ntxwv ntawm ultra-cov tshuaj lom neeg ruaj khov, zoo heev corrosion kuj, thiab zoo biocompatibility, tsis muaj tshuaj lom los nag, tsis muaj cov ntaub so ntswg, thiab tsis muaj kev tiv thaiv kab mob thaum tiv tauj tib neeg tus txha caj qaum thiab cerebrospinal kua rau luv luv - lub sij hawm invasive siv. Sib txawv ntawm kev lag luam stainless hlau, kev kho mob - qib stainless hlau tau txais kev kho mob tshwj xeeb thiab kev kho mob passivation, ua kom haum rau tib neeg lub cev dej ib puag ncig thiab ua raws li thoob ntiaj teb cov khoom siv kho mob tsis muaj menyuam muaj kev nyab xeeb.
Nyob rau hauv cov nqe lus ntawm kev ua tau zoo ntawm lub cev, lub koob lub cev ua tiav qhov zoo tshaj plaws sib npaug ntawm hardness thiab yooj. Nws yog nruj txaus los pab txhawb kev nkag mus ntawm cov txheej txheem tib neeg cov ntaub so ntswg yam tsis muaj dabtsi yog khoov lossis deformation, thaum khaws cia nruab nrab yooj yim kom tsis txhob muaj extrusion ntau dhau thiab kev puas tsuaj rau cov nqaij mos ntawm cov leeg hlwb. Cov phab ntsa sab hauv thiab sab nrauv ntawm lub cev rab koob yog ua tiav los ntawm ntau- theem precision iav polishing, ua tiav qhov burr-dawb thiab ultra- du nto uas txo cov ntaub so ntswg kev sib txhuam thaum lub sij hawm puncture, ntxiv txo qis intraoperative trauma thiab postoperative inflammatory reactions. Tus txheej txheem koob ntev yog 90mm, npog cov txha caj qaum anatomical qhov tob ntawm cov neeg laus feem ntau, thiab cov kev xaiv ntev ntev raws li tus kheej xav tau kev kho mob tshwj xeeb rau cov neeg mob tshwj xeeb thiab cov xwm txheej phais nyuaj.
4. Qhov sib txawv ntawm cov cwj mem Point thiab Quincke Point Needles
Cov txheej txheem sib txawv ntawm hom atraumatic mem hluav taw tes thiab cov tsoos Quincke point hom ncaj qha txiav txim siab lawv qhov kev nyab xeeb kev nyab xeeb. Quincke point koob ua kom nrawm nrawm tab sis txi cov ntaub so ntswg ncaj ncees, ua rau muaj teeb meem loj. Lub atraumatic mem hluav point spinal needle prioritizes Clinical security and minimally invasive effects, with moderate puncture resistance uas pab cov neeg ua hauj lwm kho mob kom paub meej tias cov ntaub so ntswg nkag mus rau hauv, txhim kho puncture positioning raug thiab ib tug - sij hawm ua tau zoo npaum li cas. Qhov zoo ntawm cov qauv no ua rau nws siv tau rau thoob plaws lub ntiaj teb rau cov neeg mob uas muaj teeb meem nrog rau cov menyuam yaus, cov neeg laus, thiab cov poj niam cev xeeb tub, uas ib txwm ntse ntse - cov koob tshuaj tiv thaiv tsis tuaj yeem npog tau zoo.
5. Cov lus xaus
Lub tswv yim tshiab cwj mem taw tes atraumatic qauv thiab siab -cov khoom siv kho mob zoo stainless hlau tso cai rau tus cwj mem atraumatic tus txha caj qaum nrog qhov tsis zoo ntawm kev kho mob zoo dua li cov cuab yeej siv tshuaj. Nws cov qauv tsim tseem ceeb ntawm kev tiv thaiv dural fiber ntau kev ncaj ncees thiab tsis txhob txiav kev raug mob hauv paus yuav txo qis kev pheej hmoo ntawm kev ua haujlwm thiab cov teeb meem tom qab ua haujlwm. Raws li kev kho mob thoob ntiaj teb minimally invasive cov qauv kev kho mob txuas ntxiv txhim kho, qhov kev ua kom zoo ntawm tus txha caj qaum no yuav hloov tag nrho cov koob txiav thiab ua tus txheej txheem rau kev kho mob lumbar puncture thiab txha caj qaum.
