Optics In Medicine and Life Sciences

O le atinaʻeina ma le faʻaogaina o mea mataʻutia ua fesoasoani i vailaʻau faʻaonaponei ma suʻesuʻega o le olaga e ulu atu i se laasaga o le atinaʻeina vave, e pei o le faʻalavelave faʻafuaseʻi, togafitiga laser, faʻamaʻi faʻamaʻi, suʻesuʻega o meaola, suʻesuʻega DNA, ma isi.

Ta'otoga ma Pharmacokinetics

O le matafaioi a optics i taotoga ma pharmacokinetics e masani ona faʻaalia i itu e lua: laser ma i vivo faʻamalamalamaga ma ata.

1. Faʻaaogaina o le laser e avea ma puna o le malosi

O le manatu o le laser therapy na faʻaofiina i taotoga mata i le 1960s.Ina ua iloa ituaiga eseese o leisa ma o latou meatotino, na vave ona faalauteleina le togafitiga laser i isi vaega.

Eseese fa'apogai fa'amalama leisa (kesa, malo, ma isi) e mafai ona fa'auluina leisa fa'atosina (Pulsed Lasers) ma fa'aauau leisa (Galu fa'aauau), e eseese a'afiaga i auga eseese o le tino o le tagata.O nei puna malamalama e masani lava ona aofia ai: pulsed ruby ​​​​laser (Pulsed ruby ​​​​laser);fa'aauau leisa argon ion (CW argon ion laser);fa'aauau pea leisa carbon dioxide (CW CO2);yttrium alumini garnet (Nd:YAG) leisa.Ona o le faʻaauau pea o le carbon dioxide leisa ma le yttrium alumini garnet laser e iai le aʻafiaga o le toto pe a tipiina aano o le tagata, e sili ona faʻaaogaina i taotoga lautele.

Ole umi ole galu ole laser faʻaaogaina i togafitiga faafomaʻi e masani lava e sili atu nai lo le 100 nm.O le absorption o lasers o galu eseese i totonu o masini eseese o le tino o le tagata e faʻaaogaina e faʻalautele ai ana talosaga faafomaʻi.Mo se faʻataʻitaʻiga, pe a sili atu le umi o le galu o le laser nai lo le 1um, o le vai o le mea muamua e faʻafefe.Lasers e le gata e mafai ona maua ai aʻafiaga vevela i le faʻaogaina o le tino o le tagata mo le tipi tipitipi ma le coagulation, ae maua ai foi aafiaga faʻainisinia.

Aemaise lava ina ua maua e tagata le aʻafiaga faʻainisinia e le faʻaogaina o lasers, e pei o le faʻatupuina o le cavitation bubbles ma galu mamafa, na faʻaogaina le lasers i le faʻaogaina o ata, e pei o le taotoga o le cataract ma le fatugaʻo e tuʻimomomoina ai taotoga vailaʻau.E mafai fo'i e le laser ona maua ni a'afiaga fa'ata'ita'i e ta'ita'ia ai vaila'au o le kanesa fa'atasi ai ma mediators photosensitive e fa'amatu'u ai a'afiaga o vaila'au i vaega fa'apitoa o le tino, e pei ole togafitiga PDT.Leisa fa'atasi ma pharmacokinetics e taua tele le sao i le fanua o vaila'au sa'o.

2. Le faʻaaogaina o le malamalama e fai ma meafaigaluega mo le faʻamalamalamaina i vivo ma ata

Talu mai le 1990s, CCD (Charge-CoupledMasini) mea pu'eata na fa'afeiloa'i ile ta'otoga fa'alaiti (Minimally Invasive Therapy, MIT), ma optics na iai se suiga lelei ile fa'aogaina o taotoga.O a'afiaga fa'ata o le malamalama ile ta'otoga fa'alaiti'iititi ma fa'amatala e masani ona aofia ai endoscopes, faiga fa'ata'ita'i fa'ata'ita'i, ma fa'ata'ita'iga holographic ta'otoga.

FaigofieEndoscope, e aofia ai gastroenteroscope, duodenoscope, colonoscope, angioscope, ma isi.

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Le ala fa'apitoa o le endoscope

O le auala faʻapitoa o le endoscope e aofia ai faiga tutoʻatasi e lua ma faʻamaopoopoina o faʻamalamalamaga ma ata.

MalosiEndoscope, e aofia ai arthroscopy, laparoscopy, thoracoscopy, ventriculoscopy, hysteroscopy, cystoscopy, otolinoscopy, ma isi.

Ole endoscopes malosi e masani lava e naʻo le tele o auala faʻapitoa e filifili mai ai, pei ole 30 tikeri, 45 tikeri, 60 tikeri, ma isi.

O se mea pu'eata la'ititi o se masini fa'ata'ita'i e fa'avae i luga ole la'ititi la'ititi ole CMOS ma le CCD fa'atekonolosi.Mo se faʻataʻitaʻiga, o se capsule endoscope,PillCam.E mafai ona ulufale i totonu o le tino o le tagata e siaki ai manuʻa ma mataʻituina aʻafiaga o vailaʻau.

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Le capsule endoscope

Fa'ata'otoga holographic microscope, o se masini fa'ata'ita'i e fa'aaoga e mata'ituina ai ata 3D o a'ano lelei ile taotoga sa'o, e pei ole neurosurgery mo craniotomy.

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O le ta'otoga holographic microscope

Aotele:

1. Ona o le aʻafiaga o le vevela, aafiaga faʻainisinia, aafiaga photosensitivity ma isi aʻafiaga o meaola o le laser, e faʻaaogaina lautele e avea o se puna malosi i taotoga faʻalavelave faʻafuaseʻi, togafitiga e le faʻaleagaina ma togafitiga faʻasaina.

2. Ona o le atinaʻeina o tekinolosi faʻataʻitaʻiga, o mea faʻapitoa faʻataʻitaʻiga faʻafomaʻi ua faia le alualu i luma tele i le itu o le maualuga maualuga ma le faʻaitiitiga, faʻavaeina le faavae mo le faʻalavelave faʻafuaseʻi ma le taotoga saʻo i vivo.I le taimi nei, o masini faʻataʻitaʻi faʻafomaʻi e masani ona faʻaaogaina e aofia aiendoscopes, ata holographic ma faiga micro-imaging.


Taimi meli: Tes-13-2022