Ƙananan na'urori masu jujjuyawar kwarara, wanda kuma aka sani da FREDs, sune babban ci gaba na gaba a cikin jiyya na aneurysms.
FRED, gajere don na'urar juyar da kwararar endoluminal, mai Layer biyu nenickel-Titanium waya raga bututu da aka ƙera don jagorantar kwararar jini ta hanyar aneurysm na kwakwalwa.
Aneurysm na kwakwalwa yana faruwa ne lokacin da wani yanki mai rauni na bangon jijiya ya kumbura, yana haifar da kumburi mai cike da jini. Idan ba a kula da shi ba, zubar da jini ko fashewar aneurysm kamar bam ne na lokaci wanda zai iya haifar da bugun jini, lalacewar kwakwalwa, suma, da mutuwa.
Yawanci, likitocin tiyata suna kula da aneurysms tare da hanyar da ake kira coil endovascular. Likitocin fida sun saka microcatheter ta wani ɗan ƙaramin yanki a cikin jijiya na mata a cikin makwancinta, su wuce zuwa kwakwalwa, sannan su naɗe jakar aneurysm, suna hana jini shiga cikin aneurysm. Hanyar tana aiki da kyau ga ƙananan aneurysms, 10 mm ko ƙasa da haka, amma ba don mafi girma aneurysms ba.
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"Lokacin da muka sanya coil a cikin karamin aneurysm, yana aiki mai girma," in ji Orlando Diaz, MD, wani likitan neuroradiologist a asibitin Houston Methodist, inda ya jagoranci gwajin asibiti na FRED, wanda ya hada da marasa lafiya fiye da kowane asibiti. asibiti a Amurka. Amurka "Amma nada zai iya tattarawa zuwa babban, katuwar aneurysm. Zai iya sake farawa kuma ya kashe mara lafiya. "
Tsarin FRED, wanda kamfanin na'urar likitanci MicroVention ya ƙera, yana karkatar da kwararar jini a wurin aneurysm. Likitocin fida sun saka na'urar ta hanyar microcatheter sannan su sanya ta a gindin aneurysm ba tare da taba jakar aneurysmal kai tsaye ba. Yayin da aka fitar da na'urar daga cikin catheter, ta faɗaɗa don samar da bututu mai naɗe.
Maimakon rufe aneurysm, FRED nan da nan ya dakatar da kwararar jini a cikin jakar aneurysmal da kashi 35%.
"Wannan yana canza hemodynamics, wanda ke sa aneurysm ya bushe," in ji Diaz. “Bayan wata shida, a ƙarshe sai ta bushe ta mutu da kanta. Kashi casa'in na aneurysms sun tafi."
A tsawon lokaci, naman da ke kewaye da na'urar yana girma kuma ya rufe aneurysm, yadda ya kamata ya samar da sabon jigon jini da aka gyara.