TR202021534A1 - SINGLE LUMEN VENOVENOUS ECMO (EXTRACORPOREAL MEMBRANE OXYGENATION) CANNULE - Google Patents

SINGLE LUMEN VENOVENOUS ECMO (EXTRACORPOREAL MEMBRANE OXYGENATION) CANNULE

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Publication number
TR202021534A1
TR202021534A1 TR2020/21534A TR202021534A TR202021534A1 TR 202021534 A1 TR202021534 A1 TR 202021534A1 TR 2020/21534 A TR2020/21534 A TR 2020/21534A TR 202021534 A TR202021534 A TR 202021534A TR 202021534 A1 TR202021534 A1 TR 202021534A1
Authority
TR
Turkey
Prior art keywords
cannula
ecmo
flow
single lumen
feature
Prior art date
Application number
TR2020/21534A
Other languages
Turkish (tr)
Inventor
Yildiz Yahya
Original Assignee
Istanbul Medipol Ueniversitesi
İstanbul Medi̇pol Üni̇versi̇tesi̇
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Istanbul Medipol Ueniversitesi, İstanbul Medi̇pol Üni̇versi̇tesi̇ filed Critical Istanbul Medipol Ueniversitesi
Priority to TR2020/21534A priority Critical patent/TR202021534A1/en
Priority to PCT/TR2021/051492 priority patent/WO2022139771A1/en
Publication of TR202021534A1 publication Critical patent/TR202021534A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621Extra-corporeal blood circuits
    • A61M1/3653Interfaces between patient blood circulation and extra-corporal blood circuit
    • A61M1/3659Cannulae pertaining to extracorporeal circulation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/36Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation ; Extra-corporeal blood circuits
    • A61M1/3621Extra-corporeal blood circuits
    • A61M1/3666Cardiac or cardiopulmonary bypass, e.g. heart-lung machines

Abstract

Bu bulus?, tek giris?li, tek lu?menli, c?ok c?ıkıs?lı bir venoveno?z EKMO (ExtraCorporeal Membrane Oxygenation - ekstrakorporeal membran oksijenasyonu) kanu?lu? ile ilgilidir.This invention is a single port, single lumen, multiple outlet venovenous ECMO (ExtraCorporeal Membrane Oxygenation) cannula. It is related to.

Description

TARIFNAME TEK LÜMENLI VENOVENÖZ EKMO (EKSTRAKORPOREAL MEMBRAN OKSIJENASYONU) KANÜL TEKNIK ALAN Bu bulus, tek girisli, tek lümenli, çok çikisli bir venovenöz EKMO (ExtraCorporeal Membrane Oxygenation - ekstrakorporeal membran oksijenasyonu) kanülü ile ilgilidir. ÖNCEKI TEKNIK Ekstrakorporeal membran oksijenasyonu (ExtraCorporeal Membrane Oxygenation-ECMO), geleneksel tedavi yöntemlerine yanit vermeyen tüm yas gruplarinda kalp, dolasim ve/veya solunum yetmezligi olan hastalarda kullanilan bir vücut disi yasam destek yöntemidir. EKMO sistemi ile kanül veya kanüller kullanilarak kirli (venöz, out-flow) kan alinmakta, kanin gaz degisiminin veya oksijenizasyonunun saglanmasinin ardindan temiz (arteryel, in- flow) kan yeniden hastaya verilmektedir. Özellikle çocuk yas gruplarinda venovenöz EKMO için kullanilan kanüllerde kan alma ve kan verme kapasitesinde yetersizlik kaynakli performans sikintisi olabilmektedir. Bu sorunu asmak için hasta boyutlarina göre daha büyük kanül kullanimi gerekir. Buna bagli olarak yerlestirme zorlugu yasanirken ayni zamanda uygulama esnasinda hastanin kalp, damar ve çevre organlarina zarar verebilme riski de olusmaktadir. Ayrica zorlukla yerlestirilen kanüllerin dogru pozisyonda oldugunu tespit etmek için ekokardiyografi Cihazi kullanilmakta ve bu cihazin bu amaçla kullanimi da özel deneyim gerektirmektedir. Kanülde uygun pozisyon elde edildigi durumlarda hastanin küçük bir hareketi ile kanül istenilen uygun pozisyondan çikabilmekte ve repoze edilmesi gerekmektedir. Ayrica uzun süre hastada kalan kanüller kateter enfeksiyonu açisindan risk olusturmaktadir. Bilinen teknikte EKMO kanülleri genellikle venovenöz (VV), venoarteriyal, venovenoarteryal (vva) sekilde uygulanabilir veya bu uygulamalar disinda degisik sekillerde ve degisik tiplerde de uygulanabilir. EKMO kanülleri periferik olarak veya santral olarak uygulanabilir. Periferik EKMO uygulamasinda Internal Juguler Ven (IJV) ve Femoral Ven/arter veya arterlerin kanülasyonu yapilarak uygulama yapilabilir. Periferik vv EKMO uygulamasinda IJV ve Femoral Ven kanülasyonu yapilarak uygulama yapilabilir. Periferik va/vva EKMO uygulamasinda IJV ve Femoral Ven/arter kanülasyonu yapilarak uygulama yapilabilir. Periferik vv EKMO uygulamasinda iki kanül ile iki damardan yani venden uygulama yapilabilecegi gibi, sadece IJV den çift lümenli tek kanül ile de uygulama yapilabilir. Santral EKMO uygulamasi ise kalbin sag kulakçigi ve aortadan yapilan EKMO uygulamasidir. Günümüzde vv EKMO için kullandigimiz ve IJV°den yerlestirdigimiz kanülün özelligi bir uç deligi ve bu deligin daha distalinde kanül etrafinda olacak sekilde daginik olarak yerlestirilen fazla sayida delik bulunmasidir. EKMO makinasinda temizlenen kan bu deliklerden geçerek hastanin sag atriumuna verilmektedir. Bu verme sirasinda kanülün ucundan çikan ve sag atriuma fiskirtilarak verilen kan inferior vena kavada bulunan ve kani alan kanüle dogru yönlenir ve bu nedenle resirkülasyon gerçeklesir. Resirkülasyon olmasi kanin makine içinde bosuna dönmesi, çalismasi ve sonuçta gereksiz kan hasarlanmasina neden olmaktadir. Mevcut kanülde proksimal uç ve diger deliklerinin yapisi akimin triküspid kapaga kanin yönlenmesi için uygun degildir. Bilinen teknikte kullanilan kanüller, özellikle kanülün üzerinde 4 tarafta bulunan ve 4"er tane olan deliklerden dolayi süperior vena kavadan ölçülen santral venöz basinç (SVB) yüksek olabilir. Özellikle EKMO akimindaki artisa paralel olarak SVB artisi gözlenebilir. Yüksek olan SVB°den dolayi ellerde (üst extremitede) sisme oldugu gözlenir, sonrasinda ise kafa içi basinç artisi veya beyin ödemi olabilir ve bu da beyin hasarlanmasi (serebral defisite) yapabilir. Yine bu dizaynda kisa devre, bir diger deyisle resirkülasyon, miktarini fazla olmasi kaçinilmazdir, bu da kanül performansini düsük olmasi demektir. Ayni dizaynda sabitleyici yapi elemani mevcut degildir. Bu nedenle kanülün pozisyonunu korumasi risk altindadir. Bu kanül dizayninda kanül pozisyonunu gösteren bir belirteç yapi elemani da bulunmamakta, dolayisi ile kanülün dogru yerlestiginden emin olmak için özel bir görüntüleme deneyimi (Ekokardiyografi /ultrason) gerekmektedir. Yukarida bahsi geçen güçlükler nedeni ile ihtiyaci olan uygun hastalarda EKMO kullanimini kisitlamakta, EKMO tedavisinden faydayi azaltmakta, böylece hastanede kalis süresi veya hastalik süresi uzamakta, hasta ölümleri artmakta ve sonuçta bunlarin hepsi saglik giderlerinde artmaya neden olmaktadir. Gerek teknigin bilinen durumu göz önüne alindiginda, gerekse bu alanda çalisan uzman doktorlarin klinik deneyimlerinden yola çikildiginda bilinen teknikte var olan resirkülasyon, enfeksiyon ve kanül yerlestirmedeki zorluklar gibi dezavantajlari ortadan kaldiracak yeni EKMO kanülüne ihtiyaç duyuldugu görülmektedir. BULUSUN KISA AÇIKLAMASI Mevcut bulus yukarida bahsedilen dezavantajlari ortadan kaldirmak ve ilgili teknik alana yeni avantajlar getirmek üzere tek lümenli venövenöz EKMO kanülüne (A) iliskindir. Bulusa uygun tek lümenli venövenöz EKMO kanülü (A); yatay kesik uçlu in-flow proksimal açikligi (101), en az bir in-Ilow akim yönlendirici delik (102), orta hat çizgisi bilesenlerini içerir. Bulusa uygun kanülde proksimal ucun (101) yatay kesik formda olmasi ve gövde (105) üzerinde yer alan akim yönlendirici delikler sayesinde EKMO kanülü kullanimindan kaynaklanan kan travmasi azalmakta ve kanülün uygulama alani genislemektedir. Ayrica, bulusa uygun kanül sayesinde kan akiminin yönlendirilmesiyle, triküspid kapaga yönlendirilmesiyle, bilinen teknikte var olan EKMO kanüllerinde görülen resirkülasyon (kisa devre) olusumu azaltilmakta veya engellenmektedir. SEKILIN KISA AÇIKLAMASI Sekil 17 de bulus konusu tek lümenli venovenöz EKMO kanülünün (A) önden görünüsü yer almaktadir. Sekil 27de bulus konusu tek lümenli venovenöz EKMO kanülünün (A) yandan görünüsü yer almaktadir. Sekillerde yer alan referans numaralari ve karsilik geldikleri bölümler asagida listelenmistir; 101: Yatay kesik uçlu in-flow proksimal açiklik 102: In-flow akim yönlendirici delik 103: Orta hat çizgisi 104: Mikro Tirtikli veya ters dubel bölüm 106: Iç-dis hat çizgisi 107: Ayarlanabilir kelepçe A: Tek lümenli venovenöz EKMO kanülü BULUSUN DETAYLI AÇIKLAMASI Mevcut bulus yatay kesik uçlu in-Ilow proksimal açikligi (101), en az bir in-Ilow akim yönlendirici delik (102), orta hat çizgisi (103), tirtikli bölüm (104), tek lümenli kanül gövdesi (105) ve iç-dis hat çizgisi (106) bilesenlerini içeren tek lümenli venövenöz EKMO kanülüne (A) iliskindir. Bulusa uygun EKMO kanülü üzerinde 1-5 adet in-flow akim yönlendirici delik (102) bulunmaktadir. Bulusun tercih edilen bir uygulamasinda bulusa uygun kanülün (A) proksimal ucunda (101) radyoopak isaretleyiei/isaret bulunur. Bulusa uygun kanül gövdesinin (105) elips/dairesel yapida olabilir. Bulusa uygun kanül gövdesinin (105) püskürtme kanalinin yapisi esnek özellikte degildir. Bu sayede kanülde (A) emme-püskürtme gücüne bagli olarak lumen çapinda degiskenlik göstermemekte ve akim stabil olmaktadir. Bulusa uygun kanülde ayrica enfeksiyona karsi direnç saglayan özel bir yapi olan ters dübel/mikrotirtik elemani (104) mevcuttur. Bulusa uygun kanülde kanülün kalp ve damar içindeki pozisyonunu gösteren bir belirteç (106) mevcuttur. Bu kanülün seviyesini ve kan verici açikligin yönünü göstermektedir. Bulusa uygun kanül (A) süperior vena kavaya yerlestirilerek temizlenen kanin hastaya verilmesi için yani inflow için kullanilir. Bulusa uygun kanülde (A) yer alan proksimal uç açikligi (101) düz kesik olmayip kani kapaga (triküspid kapaga) yönlendirmek için içe kesik sekilde dizayn edilmistir. Bulusa uygun kanülün (A) proksimal uç açikliginin (101) distalinde (yukarisinda) ayni hizada 1-2 cm uzaklikta 1-5 adet oval/elipsoid in-flow akim yönlendirici delik (102) bulunmaktadir. Bu delikler ( 102) akimi içe yani sag AV kapaga yani triküspid kapaga, sag ventriküle yönlendirmektedir. Bulusun tercih edilen bir uygulamasinda 2-5 adet in-Ilow akim yönlendirici delik (102) bulunur. Bulusun tercih edilen bir uygulamasinda kanülü dogru yerlestirmek için kanülün ön- ortasinda orta hat isareti bulunmaktadir. Kanülün distalinde kanülün iç ve disini gösteren iç/dis isaretleri bulunur. Bulusa uygun kanülün gövdesi (105) boydan boya yani tamamen spiral (etrafini saran) metal (reinforce) ile güçlendirilmis olabilecegi gibi sadece kanül üzerindeki bazi bölümlerde, örnegin kanülün ciltten giris yerinde bu yapi bulunabilir. Bulusa uygun EKMO kanülünde (A) yer alan mikrotirtik elemani (104), tirtiklardan (104) olusmaktadir. Bu tirtiklar (104) kanül gövdesinin (105) distal ucuna dogru, konumlandirilmistir. Bir diger açidan, bulusa uygun kanülde (A) yer alan mikrotirtik elemani (104) üzerinde bulunan tirtiklar kanül gövdesinde (105) kanül gövdesiyle 10 ile 1750 arasinda bir açi olusturacak sekilde konumlandirilir. Mikrotirtik elemaninda (104) o, 170 o olabilir. Bulusa uygun kanülün (A) üzerinde bulunan mikrotirtik elemani (104) ile cilt arasindan girebilecek bakteriye veya mikroorganizmaya karsi bariyer olusturmak amaçlanmistir. Bulusa uygun kanüller klor hekzidin, potasyum iyodür, alkol Vb. teknigin bilinen durumunda var olan dezenfektanlardan etkilenmeyen, bu dezenfektanlara karsi inert olan, bu dezenfektanlarla etkilesime geçmeyen metal veya polimerik materyallerden yapilabilir. Bulusa uygun kanül (A) her yas, boy, kilo için örnegin; yeni dogan, çocuk, yetiskin yani degisik ebatlardaki insanin anatomisine uygun olarak degisik tiplerde ve ebatlarda üretilebilir. Bu tarifname baglaminda içerir ifadesinin kapsar ifadesini belirtmesi amaçlanmistir. Teknik açidan uygun olan yerlerde, bulusun uygulamalari birlestirilebilir. Uygulamalar burada belirli özellikler/elemanlar içerecek sekilde açiklanmistir. Tarifname ayrica esas olarak bahsi geçen özellikleri/elemanlari içeren ya da bunlardan meydana gelen diger uygulamalari da kapsamaktadir. numarali patent basvurulari ve benzeri teknik referanslar referans yolu ile bu dokümana dahil edilmistir. Burada spesifik olarak ve açikça anlatilan uygulamalar tek basina ya da bir veya birkaç diger uygulama ile birlikte bir feragatnameye esas teskil edebilir. TR TR TR DESCRIPTION SINGLE LUMEN VENOVENUS ECMO (EXTRACORPOREAL MEMBRANE OXYGENATION) CANNULA TECHNICAL FIELD This invention relates to a single-input, single-lumen, multi-outlet venovenous ECMO (ExtraCorporeal Membrane Oxygenation) cannula. BACKGROUND ART Extracorporeal membrane oxygenation (ExtraCorporeal Membrane Oxygenation-ECMO) is an extracorporeal life support method used in patients with heart, circulatory and/or respiratory failure in all age groups who do not respond to traditional treatment methods. With the ECMO system, dirty (venous, out-flow) blood is taken using a cannula or cannulas, and after ensuring gas exchange or oxygenation of the blood, clean (arterial, in-flow) blood is given back to the patient. Cannulas used for venovenous ECMO, especially in pediatric age groups, may have performance problems due to insufficient blood collection and blood donation capacity. To overcome this problem, it is necessary to use a larger cannula according to the patient size. Accordingly, while placement is difficult, there is also a risk of damage to the patient's heart, blood vessels and surrounding organs during application. In addition, an echocardiography device is used to determine whether the cannulas placed with difficulty are in the correct position, and the use of this device for this purpose requires special experience. In cases where the appropriate position of the cannula is achieved, the cannula can be removed from the desired appropriate position with a small movement of the patient and must be repositioned. Additionally, cannulas that remain in the patient for a long time pose a risk of catheter infection. In the known technique, ECMO cannulas can generally be applied as venovenous (VV), venoarterial, venovenoarterial (vva), or they can be applied in different ways and different types apart from these applications. ECMO cannulas can be applied peripherally or centrally. In peripheral ECMO application, the application can be performed by cannulating the Internal Jugular Vein (IJV) and Femoral Vein/artery or arteries. In peripheral IV ECMO application, IJV and Femoral Vein cannulation can be performed. In peripheral va/vva ECMO application, IJV and Femoral Vein/artery cannulation can be performed. In peripheral vv ECMO application, the application can be made from two vessels, that is, the vein, with two cannulas, or the application can be made only from the IJV with a single double lumen cannula. Central ECMO application is the ECMO application performed through the right atrium and aorta of the heart. The feature of the cannula that we use today for vv ECMO and that we place through the IJV is that it has a tip hole and a large number of holes placed more distally around the cannula, more distal to this hole. The blood cleaned in the ECMO machine passes through these holes and is given to the patient's right atrium. During this administration, the blood coming out of the tip of the cannula and being squirted into the right atrium is directed towards the cannula in the inferior vena cava, which receives the blood, and therefore recirculation occurs. The lack of recirculation causes the blood to return and work in vain within the machine, resulting in unnecessary blood damage. The structure of the proximal tip and other holes in the current cannula is not suitable for directing blood to the tricuspid valve. The central venous pressure (CBP) measured from the superior vena cava may be high due to the cannulas used in the known technique, especially the holes on the 4 sides of the cannula, 4" each. In particular, an increase in CVP can be observed in parallel with the increase in ECMO flow. Due to the high CBP in the hands ( swelling is observed (in the upper extremity), then there may be an increase in intracranial pressure or brain edema, which may cause brain damage (cerebral deficit). Again, in this design, it is inevitable to have an excessive amount of short circuit, in other words recirculation, which results in poor cannula performance. This means. There is no stabilizing structural element in the same design. Therefore, maintaining the position of the cannula is at risk. In this cannula design, there is no indicator structural element that shows the cannula position, therefore a special imaging experience (Echocardiography / ultrasound) is required to ensure that the cannula is placed correctly. Due to the above-mentioned difficulties, it restricts the use of ECMO in appropriate patients who need it, reduces the benefit of ECMO treatment, thus prolongs hospital stay or duration of illness, increases patient deaths, and ultimately all of these lead to an increase in healthcare costs. Considering both the known state of the technique and the clinical experiences of specialist doctors working in this field, it is seen that a new ECMO cannula is needed to eliminate the disadvantages of the known technique such as difficulties in recirculation, infection and cannula placement. BRIEF DESCRIPTION OF THE INVENTION The present invention is related to the single lumen venovenous ECMO cannula (A) in order to eliminate the disadvantages mentioned above and bring new advantages to the relevant technical field. Single lumen venovenous ECMO cannula (A) according to the invention; It includes a horizontal cut-ended in-flow proximal opening (101), at least one in-flow directing hole (102), and midline line components. In the cannula according to the invention, the proximal tip (101) is in horizontal cut form and the flow directing holes on the body (105) reduce the blood trauma caused by the use of the ECMO cannula and the application area of the cannula expands. In addition, by directing the blood flow to the tricuspid valve thanks to the cannula according to the invention, the recirculation (short circuit) formation seen in the ECMO cannulas available in the known art is reduced or prevented. BRIEF DESCRIPTION OF THE FIGURE Figure 17 shows the front view of the single-lumen venovenous ECMO cannula (A) of the invention. Figure 27 shows the side view of the single-lumen venovenous ECMO cannula (A) that is the subject of the invention. The reference numbers in the figures and the sections they correspond to are listed below; 101: In-flow proximal opening with horizontal cut tip 102: In-flow flow directing hole 103: Midline line 104: Micro Serrated or reverse dowel section 106: Inner-outer line line 107: Adjustable clamp A: Single lumen venovenous ECMO cannula FIND DETAILED DESCRIPTION The present invention consists of a horizontally cut-ended in-Ilow proximal opening (101), at least one in-Ilow flow directing hole (102), midline line (103), serrated section (104), single lumen cannula body (105) and It relates to the single lumen venovenous ECMO cannula (A) containing the inner-outer line (106) components. There are 1-5 in-flow current directing holes (102) on the EKMO cannula according to the invention. In a preferred embodiment of the invention, there is a radiopaque marking at the proximal end (101) of the cannula (A) according to the invention. The cannula body (105) according to the invention may have an ellipse/circular structure. The structure of the spray channel of the cannula body (105) according to the invention is not flexible. In this way, the lumen diameter does not vary depending on the suction-spray power in the cannula (A) and the flow is stable. The cannula according to the invention also has a reverse dowel/microtread element (104), which is a special structure that provides resistance against infection. The cannula according to the invention contains an indicator (106) that indicates the position of the cannula within the heart and vessel. This shows the level of the cannula and the direction of the blood donor opening. The cannula (A) according to the invention is placed in the superior vena cava and used to deliver the cleaned blood to the patient, that is, for inflow. The proximal end opening (101) in the cannula (A) according to the invention is not a straight cut, but is designed with an inward cut to direct the blood to the valve (tricuspid valve). There are 1-5 oval/ellipsoid in-flow flow directing holes (102) at a distance of 1-2 cm in the same line at the distal (above) proximal end opening (101) of the cannula (A) according to the invention. These holes (102) direct the flow inward, that is, to the right AV valve, that is, the tricuspid valve, to the right ventricle. In a preferred embodiment of the invention, there are 2-5 in-Ilow current guiding holes (102). In a preferred embodiment of the invention, there is a midline mark in the front-middle of the cannula in order to place the cannula correctly. There are inside/outside markings on the distal part of the cannula that show the inside and outside of the cannula. The body (105) of the cannula according to the invention may be reinforced with metal (reinforce) throughout, that is, completely spiral (surrounding it), or this structure may be present only in some parts of the cannula, for example at the entrance of the cannula from the skin. The microtrace element (104) located in the ECMO cannula (A) according to the invention consists of notches (104). These notches (104) are positioned towards the distal end of the cannula body (105). From another perspective, the serrations on the microserration element (104) in the cannula (A) according to the invention are positioned on the cannula body (105) to form an angle between 10 and 175° with the cannula body. In the microtirtic element (104) o can be 170 o. It is aimed to create a barrier against bacteria or microorganisms that may enter through the skin with the microtire element (104) on the cannula (A) according to the invention. Cannulas according to the invention are made of chlorine hexidine, potassium iodide, alcohol etc. It can be made of metal or polymeric materials that are not affected by existing disinfectants in the state of the art, are inert towards these disinfectants, and do not interact with these disinfectants. The cannula (A) according to the invention can be used for all ages, heights and weights, for example; It can be produced in different types and sizes in accordance with the anatomy of newborns, children, adults, that is, people of different sizes. In the context of this specification, the term includes is intended to indicate includes. Where technically feasible, embodiments of the invention can be combined. Applications are described here with specific features/elements. The specification also covers other embodiments that substantially incorporate or consist of the features/elements mentioned. Patent applications no. and similar technical references are included in this document by reference. The practices specifically and clearly described herein may constitute the basis for a disclaimer, either alone or in combination with one or more other practices. TR TR TR

Claims (1)

1.ISTEMLER . Tek lümenli venövenöz EKMO kanülü (A). . Istem 1”e göre bir kanül (A) olup özelligi yatay kesik uçlu in-flow proksimal açikligi (101), en az bir in-Ilow akim yönlendirici delik (102), orta hat çizgisi (103)a tirtikli bölüm (104), tek lümenli kanül gövdesi (105) ve iç-dis hat çizgisi (106) bilesenlerini içermesidir. . Istem 1-2ye göre bir kanül (A) olup özelligi 1-5 adet in-flow akim yönlendirici delik (102) bulunmasidir. . Istem 1-3 ”e göre bir kanül (A) olup özelligi proksimal ucunda (101) radyoopak isaretleyici/isaret bulunmasidir. . Istem 1-4°e göre bir kanül (A) olup özelligi kanül gövdesinin (105) emme ve püskürtme kanallarini ayiran yapinin esnek özellikte olmamasidir. . Istem 1-5°e göre bir kanül (A) olup özelligi mikrotirtik elemaninin (104), tirtiklardan (104) olusmasi ve bu tirtiklarin kanül gövdesinin (105) distal ucuna ucuna dogru konumlandirilmasidir. TR TR TR1.CLAIMS. Single lumen venovenous ECMO cannula (A). . It is a cannula (A) according to claim 1, and its feature is an in-flow proximal opening (101) with a horizontal cut end, at least one in-flow directing hole (102), a serrated section (104) on the midline line (103), It contains single lumen cannula body (105) and inner-outer line (106) components. . It is a cannula (A) according to claims 1-2 and its feature is that it has 1-5 in-flow flow directing holes (102). . It is a cannula (A) according to claims 1-3, and its feature is that it has a radiopaque marker at its proximal end (101). . It is a cannula (A) according to claims 1-4 and its feature is that the structure separating the suction and spray channels of the cannula body (105) is not flexible. . It is a cannula (A) according to claims 1-5 and its feature is that the microserrated element (104) consists of serrations (104) and these serrations are positioned towards the distal end of the cannula body (105). TR TR TR
TR2020/21534A 2020-12-24 2020-12-24 SINGLE LUMEN VENOVENOUS ECMO (EXTRACORPOREAL MEMBRANE OXYGENATION) CANNULE TR202021534A1 (en)

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TR2020/21534A TR202021534A1 (en) 2020-12-24 2020-12-24 SINGLE LUMEN VENOVENOUS ECMO (EXTRACORPOREAL MEMBRANE OXYGENATION) CANNULE
PCT/TR2021/051492 WO2022139771A1 (en) 2020-12-24 2021-12-24 A single lumen veno venous ecmo (extracorporeal membrane oxygenation) cannula

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TR2020/21534A TR202021534A1 (en) 2020-12-24 2020-12-24 SINGLE LUMEN VENOVENOUS ECMO (EXTRACORPOREAL MEMBRANE OXYGENATION) CANNULE

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US5643215A (en) * 1995-02-24 1997-07-01 The Research Foundation Of State University Of New York Gas exchange apparatus and method
US7473239B2 (en) * 2003-08-25 2009-01-06 The University Of Texas System Single expandable double lumen cannula assembly for veno-venous ECMO
EP4218630A1 (en) * 2014-11-14 2023-08-02 University Of Maryland, Baltimore Self-sealing cannula
CN112791304A (en) * 2016-07-12 2021-05-14 怡忠科技股份有限公司 In vitro life support system

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