Taw qhia txog hom ntshav txhaws
Ua ntej qhia lub thrombus aspiration catheter, cia peb ua ntej qhia lub hom phiaj ntawm thrombus aspiration catheter - thrombus. Thrombus tuaj yeem raug faib ua plaub pawg hauv qab no:
1. Dawb thrombus: Nyob rau theem pib ntawm thrombosis, nws yog tsim los ntawm platelets. Nyob rau hauv lub tshuab kuaj kab mob, lub thrombus uas yuav luag tag nrho cov platelets yog hu ua cov ntshav dawb thrombus.
Yam ntxwv: Nws zoo li me me grey-dawb nodules lossis zaub thaum pom ntawm qhov muag liab qab. Qhov saum npoo yog ntxhib, kev ntxhib los mos yog ruaj, thiab nws adheres ze rau ntawm cov hlab ntsha phab ntsa thiab tsis yooj yim rau poob.
2. Mixed thrombus: Cov platelets sib txuas ua ke qee cov qe ntshav liab thaum cov ntshav dawb txuas mus rau sab saud, tom qab ntawd ua kom sib xyaw thrombus.
Cov yam ntxwv: Cov tsos yog ntxhib, qhuav, cylindrical, adherent rau cov hlab ntsha phab ntsa, thiab qee zaum grey-dawb thiab xim av strip zoo li cov qauv tuaj yeem txheeb xyuas.
3. Liab thrombus: Cov thrombus tsim yog hu ua liab thrombus thaum muaj ntau cov qe ntshav liab coagulates.
Yam ntxwv: Nws tshwm liab tsaus rau qhov muag liab qab. Nws yog moist thaum tshiab. Nws muaj qee yam elasticity, thiab tsis muaj adhesion rau phab ntsa hlab ntsha;
4. Fibrous thrombus: Nws yog tsim los ntawm fibrin-nplua nuj thrombus;
Cov yam ntxwv: Hyaline thrombus tshwm sim nyob rau hauv cov hlab ntsha ntawm microcirculation thiab feem ntau yog nyob rau hauv capillaries, yog li nws tsuas yog pom nyob rau hauv lub tshuab tsom. Nws tseem hu ua microthrombus.
Yuav Ua Li Cas Aspiration Catheter Ua Haujlwm
Txoj cai ntawm aspiration flow rate:
Thaum lub aspiration catheter ua rau aspiration, cov ntshav txaus tus nqi nyob rau hauv lub catheter yog proportional rau lub aspiration siab, thiab yog proportional rau plaub lub hwj chim ntawm lub puab txoj kab uas hla ntawm lub catheter. Yog li ntawd, thaum lub aspiration catheter ua hauj lwm, lub kaw lus yuav tsum xub muab nrog nruam thiab ruaj khov aspiration siab, thiab yuav tsis ua rau poob lub sij hawm. Tsis tas li ntawd, nyob rau hauv cov xwm txheej tsim nyog, xaiv lub aspiration catheter nrog qhov loj tshaj plaws sab hauv kab rau cov neeg mob.
Lub hauv paus ntsiab lus ntawm Aspiration Force:
Thaum lub aspiration catheter tab tom ua cov txheej txheem aspiration, muaj qhov ntsuas ntau ntawm lub zog aspiration. Aspiration force=Thrombus Removal Force (TRF). Nws tuaj yeem kwv yees los ntawm cov qauv: TRF ∝ Catheter puab txoj kab uas hla × lub tshuab nqus tsev degree. Lub aspiration quab yuam thiab qhov chaw hla ntawm lub lumen ntawm lub aspiration catheter yog ncaj qha proportional rau lub siab sib txawv, uas zoo ib yam li lub hauv paus ntsiab lus ntawm suction flow rate.
Thrombus Aspiration txheej txheem
Raws li ntau hom thrombus, nws tuaj yeem muab faib ua ob qhov tshwj xeeb hauv qab no:
1. Thaum lub thrombus yog ib tug tshiab liab thrombus los yog ib tug sib tov thrombus, thiab qhov luaj li cas ntawm lub thrombus yog Less tshaj los yog sib npaug rau ID (aspiration catheter), lub siab tsis zoo siab aspiration yog pib thaum lub hau ntawm lub catheter pib mus cuag lub thrombus, thiab lub thrombus yuav tag nrho nqus mus rau hauv lub lumen ntawm lub catheter. Yog li cov pearls tau nqus tawm ntawm lub cev zoo li nqus pearls vim yog lub zog ua kom lub cev tsis tu ncua thaum haus pearl mis nyuj tshuaj yej, yog li rov ua kom cov ntshav ntws hauv cov hlab ntsha distal;
2. Thaum lub thrombus yog ib tug tawv dawb thrombus los yog fibrous thrombus, thiab qhov luaj li cas ntawm lub thrombus yog> ID (aspiration catheter), lub siab tsis zoo siab aspiration pib thaum lub taub hau ntawm lub catheter pib hu rau lub thrombus, thiab lub thrombus yuav tsum. nqus mus rau hauv lub hau ntawm lub catheter. Thaum kawg, nws yog rub tawm ntawm lub cev ua ke nrog lub catheter nyob rau hauv tas li tsis zoo siab, li no restoration cov ntshav distal. Nyob rau hauv tus txheej txheem ntawm aspiration lub thrombus, lub zog ntawm "tso" thiab "suction" ob leeg muaj, thiab ob leeg ua hauj lwm ua ke. Nws yog qhov kev sib xyaw ua ke ntawm cov twj tso kua mis thiab nqus dej uas tau tsim cov xwm txheej ntawm ADAPT thev naus laus zis hauv kev lag luam.
Aspiration Catheter Research thiab Development Direction
Raws li cov lus qhia saum toj no rau cov hom thrombus thiab kev tsom xam ntawm lub hauv paus ntsiab lus ntawm aspiration catheter rau thrombus aspiration, peb tuaj yeem paub ob qho kev qhia dav dav rau kev tsim thrombus aspiration catheter. Thawj qhov yog siv lub tshuab nqus tsev ruaj khov los tsim kom muaj lub siab tsis zoo thaum lub sij hawm aspiration. Tam sim no, cov kws kho mob siv cov twj tso kua mis tsis zoo thaum ua haujlwm rau kev ua haujlwm, uas tuaj yeem tsim lub tshuab nqus tsev txuas ntxiv thiab ruaj khov, uas yog qhov tsim nyog rau kev noj thiab kev ntshaw ntawm thrombus. Qee tus kws kho mob kuj siv ob qho tib si 60ml snap syringes. Qhov yooj yim tsis zoo lub tshuab hluav taws xob tsim los ntawm cov koob txhaj tshuaj tuaj yeem tswj tau lub tshuab nqus tsev rau lub sijhawm luv luv, uas tsis yog qhov zoo rau lub catheter nqus lub zog thiab loj thrombus.
Qhov thib ob yog kom nce lub taub sab hauv ntawm cov hliav ntawm cov catheter tsis hloov mus rau qhov ntxeev ntawm tus catheter thiab ua rau thrombus kev quab yuam. Txij li thaum xibfwb Turk thiab lwm tus thawj zaug tau thov ADAPT (A Direct Aspiration First-Pass Technology) hauv xyoo 2013, intracranial thrombus aspiration catheter cov khoom tau tsim kho sai heev. Raws li lub hauv paus theoretical ntawm lub aspiration hauv paus ntsiab lus, loj manufacturers tam sim no muab lub tshuab nqus tsev twj tso kua mis nrog ruaj tsis zoo siab thiab ua rau lub puab txoj kab uas hla ntawm lub aspiration catheter. Kev tshawb nrhiav khoom thiab kev tsim kho yog ua nyob rau hauv ob qho kev qhia.