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RS65875B1 - Sredstvo za isporučivanje tečnosti sa alatom za transkutani pristup, mehanizmom za inserciju i praćenje nivoa glukoze u krvi za istovremenu upotrebu - Google Patents

Sredstvo za isporučivanje tečnosti sa alatom za transkutani pristup, mehanizmom za inserciju i praćenje nivoa glukoze u krvi za istovremenu upotrebu

Info

Publication number
RS65875B1
RS65875B1 RS20240947A RSP20240947A RS65875B1 RS 65875 B1 RS65875 B1 RS 65875B1 RS 20240947 A RS20240947 A RS 20240947A RS P20240947 A RSP20240947 A RS P20240947A RS 65875 B1 RS65875 B1 RS 65875B1
Authority
RS
Serbia
Prior art keywords
fluid delivery
cannula
trocar
fluid
reservoir
Prior art date
Application number
RS20240947A
Other languages
English (en)
Inventor
Steven Diianni
Ian Mclaughlin
Jason B O'connor
Robert Campbell
Kevin Schmid
Original Assignee
Insulet Corp
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=49261308&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=RS65875(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Insulet Corp filed Critical Insulet Corp
Publication of RS65875B1 publication Critical patent/RS65875B1/sr

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    • 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/145Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • A61M5/14566Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons with a replaceable reservoir for receiving a piston rod of the pump
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/145Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
    • A61B5/14532Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue for measuring glucose, e.g. by tissue impedance measurement
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/145Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue
    • A61B5/1468Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means
    • A61B5/1486Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means using enzyme electrodes, e.g. with immobilised oxidase
    • A61B5/14865Measuring characteristics of blood in vivo, e.g. gas concentration or pH-value ; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid or cerebral tissue using chemical or electrochemical methods, e.g. by polarographic means using enzyme electrodes, e.g. with immobilised oxidase invasive, e.g. introduced into the body by a catheter or needle or using implanted sensors
    • 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/14244Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body
    • 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/14244Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body
    • A61M5/14248Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body of the skin patch type
    • 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/145Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M5/1452Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons pressurised by means of pistons
    • 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/168Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body
    • A61M5/172Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body electrical or electronic
    • A61M5/1723Means for controlling media flow to the body or for metering media to the body, e.g. drip meters, counters ; Monitoring media flow to the body electrical or electronic using feedback of body parameters, e.g. blood-sugar, pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00Containers or packages with special means for dispensing contents
    • B65D83/76Containers or packages with special means for dispensing contents for dispensing fluent contents by means of a piston
    • B65D83/761Containers or packages with special means for dispensing contents for dispensing fluent contents by means of a piston the piston being actuated by a screw-shaft
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04BPOSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M2005/1401Functional features
    • A61M2005/1403Flushing or purging
    • 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/14244Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body
    • A61M5/14248Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body of the skin patch type
    • A61M2005/14252Pressure infusion, e.g. using pumps adapted to be carried by the patient, e.g. portable on the body of the skin patch type with needle insertion means
    • 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/142Pressure infusion, e.g. using pumps
    • A61M5/145Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons
    • A61M2005/14506Pressure infusion, e.g. using pumps using pressurised reservoirs, e.g. pressurised by means of pistons mechanically driven, e.g. spring or clockwork
    • 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
    • A61M2230/00Measuring parameters of the user
    • A61M2230/20Blood composition characteristics
    • A61M2230/201Glucose concentration
    • 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
    • A61M5/00Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178Syringes
    • A61M5/31Details
    • A61M5/32Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/329Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles characterised by features of the needle shaft
    • A61M5/3291Shafts with additional lateral openings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2270/00Control; Monitoring or safety arrangements
    • F04C2270/04Force
    • F04C2270/041Controlled or regulated

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Hematology (AREA)
  • Vascular Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Molecular Biology (AREA)
  • Optics & Photonics (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Medical Informatics (AREA)
  • Mechanical Engineering (AREA)
  • Diabetes (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Dermatology (AREA)
  • Emergency Medicine (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Engineering & Computer Science (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Media Introduction/Drainage Providing Device (AREA)

Description

Opis
TEHNIČKA OBLAST
[0001] Predmetni pronalazak se odnosi na sredstva za isporučivanje tečnosti namenjena za isporučivanje terapeutskih tečnosti pacijentu, konkretnije na infuzionu pumpu za isporučivanje terapeutskih tečnosti pacijentu.
OSNOVNE INFORMACIJE
[0002] Sredstva za isporučivanje tečnosti imaju brojne primene, kao što je supkutano isporučivanje tečnog leka ili druge terapeutske tečnosti pacijentu. Na primer, ambulantne infuzione pumpe su kod pacijenata sa dijabetesom melitusom korišćene za isporučivanje insulina pacijentu. Ove ambulantne infuzione pumpe mogu da obezbede prefinjene profile isporučivanja tečnosti, uključujući promenljivu bazalnu brzinu i bolusne potrebe. Sposobnost pažljivog kontrolisanja isporučivanja leka može dovesti do poboljšane delotvornosti leka i terapije i manje toksičnosti za pacijenta.
[0003] Neke postojeće ambulantne infuzione pumpe uključuju rezervoar koji sadrži tečni lek i koriste elektomehaničke tehnologije za pumpanje ili doziranje kako bi se tečni lek putem cevčice isporučio u iglu i/ili mekanu kanilu koja je supkutanu umetnuta u pacijenta. Ova postojeća sredstva omogućavaju upravljanje i programiranje putem elektromehaničkih dugmića ili prekidača koji se nalaze na kućištu sredstva. Uređaji obuhvataju vizuelne povratne informacije putem teksta ili grafičkih ekrana i mogu da sadrže svetla za uzbunu ili upozorenje i zvučne ili vibracione signale i alarme. Takva sredstva se obično nose u futroli ili džepu ili pričvršćena na telo pacijenta.
[0004] Neke infuzione pumpe su konstruisane da budu relativno male, jeftine, lake i jednostavne za korišćenje. Jedan primer za takvu pumpu je insulinska infuziona pumpa OMNIPOD<®>koju proizvodi kompanija Insulet Corporation. Primeri za infuzione pumpe su takođe detaljnije opisani, na primer, u WO 2006/104806, U.S. patentima br.
7,128,727; 7,018,360; i 7,144,384 i U.S. publikacijama patentnih prijava br. 2007/0118405, 2006/0282290, 2005/0238507, i 2004/0010207. Ove pumpe imaju određene insercione mehanizme za postizanje umetanja alata za transkutani pristup, kao što je igla i/ili mekana kanila, u pacijenta. Iako su takve pumpe delotvorne i pružaju značajne prednosti u odnosu na druge insulinske infuzione pumpe, dizajn mehanizma za inserciju može biti poboljšan, na primer, kako bi se pumpa smanjila, kako bi se povećala udobnost korisnika i/ili kako bi se uključilo kontinuirano merenje glukoze (CGM). Ove pumpe takođe imaju mehanizme za pogon tečnost koji pokreću tečnosti iz rezervoara kroz alat za transkutani pristup. Mehanizmi za pogon tečnost takođe mogu biti poboljšani kako bi se olakšalo sklapanje i korišćenje pumpe.
[0005] Dalje infuzione pumpe su poznate iz GB 2224 444 A, US 2006/178633 A1, US 4424 720 A, US 5101 679 A i US 2005/020980 A1.
SAŽETAK
[0006] Predmetni pronalazak se odnosi na sredstvo za isporučivanje tečnosti kao što je definisano u zahtevu 1. Povezani zahtevi opisuju korisne karakteristike predmetnog pronalaska.
KRATAK OPIS SLIKA
[0007] Ove i druge karakteristike i prednosti će se bolje razumeti čitanjem sledećeg detaljnog opisa, zajedno sa slikama, pri čemu:
SL. 1
je prikaz iz gornje perspektive sredstva za isporučivanje tečnosti sa mehanizmom za inserciju alata za transkutani pristup u položaju pre primene, u skladu sa predmetnim otkrićem;
SL. 2
je prikaz iz donje perspektive igle i kanile uvučene u sredstvo za isporučivanje tečnosti u položaju pre primene kao što je prikazano na SL.1;
SL. 3
je prikaz iz gornje perspektive sredstva za isporučivanje tečnosti prikazanog na SL.1 sa mehanizmom za inserciju u srednjem položaju;
SL. 4
je prikaz iz donje perspektive igle i kanile koje se pružaju iz sredstva za isporučivanje tečnosti u srednjem položaju kao što je prikazano na SL.3;
SL. 5
je prikaz iz gornje perspektive sredstva za isporučivanje tečnosti prikazanog na SL.1 sa mehanizmom za inserciju u položaju nakon primene;
SL. 6
je prikaz iz donje perspektive kanile koja se pruža iz sredstva za isporučivanje tečnosti u položaju nakon primene kao što je prikazano na SL.5;
SL. 7
je prikaz iz bočne perspektive drugog otelotvorenja mehanizma za inserciju, prema predmetnom otkriću, u položaju pre primene;
SL. 8
je prikaz iz bočne perspektive mehanizma za inserciju prikazanog na SL.7 u srednjem položaju;
SL. 9
je prikaz iz bočne perspektive mehanizma za inserciju prikazanog na SL.7 u položaju nakon primene;
SL. 10
je prikaz iz gornje perspektive drugog kliznog elementa mehanizma za inserciju prikazanog na SL.7 koji je zaključan u položaju pre primene i posle primene;
SL. 11
je prikaz iz gornje perspektive mehanizma za pogon tečnosti sredstva za isporučivanje tečnosti prikazanog na SL.1 sa mehanizmom kvačila u neaktivnom položaju pre punjenja;
SL. 12
je bočni prikaz poprečnog preseka mehanizma za pogon tečnosti koji je prikazan na SL. 11;
SL. 13
je prikaz iz gornje perspektive mehanizma za pogon tečnosti prikazanog na SL.11 sa mehanizmom kvačila u neaktivnom položaju nakon punjenja;
SL. 14
je prikaz iz gornje perspektive mehanizma za pogon tečnosti prikazanog na SL.11 sa mehanizmom kvačila koji je otpušten u aktivni položaj; i
i 16 su prikazi iz gornje perspektive mehanizma za pogon tečnosti prikazanog na SL.
11 sa mehanizmom kvačila u aktivnom položaju.
SL. 17-23
su prikazi dvolumenske kanile koja se koristi u sredstvu za isporučivanje tečnosti koje je prikazano na SL.1-6 za transkutanu inserciju test trake za praćenje;
SL. 24-29
su prikazi drugog otelotvorenja sredstva za isporučivanje tečnosti koje ima kanilu sa lumenom u obliku slova „D“ za transkutanu inserciju test trake za praćenje;
SL. 30-32
su prikazi kanile sa lumenom u obliku slova „D“ koja se koristi u sredstvu za isporučivanje tečnosti sa SL.24-29;
SL. 33 i 34
su prikazi polukružnog trokara koji se koristi sa kanilom koja ima lumen u obliku slova „D“ u sredstvu za isporučivanje tečnosti sa SL.18-23;
SL. 35-41
su prikazi drugog otelotvorenja sredstva za isporučivanje tečnosti koje ima ovalni trokar za transkutanu inserciju test trake za praćenje;
SL. 42
je bočni prikaz ovalnog trokara za upotrebu kod sredstva za isporučivanje tečnosti koje je prikazano na SL.35-41;
SL. 43
je prikaz iz gornje perspektive drugog kliznog elementa za upotrebu kod sredstva za isporučivanje tečnosti koje je prikazano na SL.35-41.
DETALJAN OPIS
[0008] Sredstvo za isporučivanje tečnosti, prema otelotvorenjima predmetnog otkrića, može da se koristi za isporučivanje terapeutske tečnosti (npr. tečnog leka) pacijentu putem alata za transkutani pristup, kao što je igla/trokar i/ili kanila. Mehanizam za inserciju alata za transkutani pristup može da se koristi za primenu alata za transkutani pristup, na primer, umetanjem i povlačenjem igle/trokara jednim neprekidnim pokretom. Mehanizam za inserciju takođe može da obezbedi rastuću silu za inserciju prilikom pomeranja igle/trokara u smeru insercije. Prema predmetnom pronalasku, sredstvo za isporučivanje tečnosti takođe uključuje mehanizam kvačila koji olakšava punjenje rezervoara i aktivaciju pogonskog mehanizma za pokretanje tečnosti iz rezervoara. U određenim otelotvorenjima, sredstvo za isporučivanje tečnosti može da obuhvata ambulantno sredstvo za infuziju insulina.
[0009] U drugim otelotvorenjima, sredstvo za isporučivanje tečnosti može da se koristi za isporučivanje terapeutske tečnosti pacijentu uz integrisano praćenje, kao što je kontinualno merenje glukoze (CGM). U ovim otelotvorenjima, sredstvo za isporučivanje tečnosti može da obuhvata alat za transkutani pristup konfigurisan za uvođenje test trake za praćenje u pacijentovu kožu, na primer, koristeći jednu ili više igala, kanila i/ili trokara.
[0010] Uz upućivanje na SL.1-6 prikazano je i opisano jedno otelotvorenje sredstva za isporučivanje tečnosti 100. U jednom reprezentativnom otelotvorenju, sredstvo za isporučivanje tečnosti 100 se koristi za supkutano isporučivanje tečnosti, kao što je tečni lek (npr. insulin), nekoj osobi ili životinji. Stručnjacima za ovu oblast će biti jasno da sredstvo za isporučivanje tečnosti 100 može da se koristi za isporučivanje drugih vrsta tečnosti. Sredstvo za isporučivanje tečnosti 100 može da se koristi za isporučivanje tečnosti na kontrolisani način, na primer, u skladu sa profilima isporučivanja tečnosti koji zadovoljavaju bolusne potrebe, kontinuiranu infuziju i varijabilnu brzinu isporučivanja.
[0011] Prema jednom otelotvorenju, sredstvo za isporučivanje tečnosti 100 može da uključuje jednu ili više baterija 110 koje obezbeđuju izvor napajanja, rezervoar za tečnost 130 u kome se tečnost nalazi, pogonski mehanizam za tečnost 150 za pokretanje tečnosti van rezervoara 130, mehanizam za sprovođenje tečnosti 170 koji prima tečnost iz rezervoara 130 i sprovodi tečnost do odredišta putem alata za transkutani pristup 172, i mehanizam za inserciju alata za transkutani pristup 180 za primenu alata za transkutani pristup 172. Sredstvo za isporučivanje tečnosti 100 može da obuhvata štampanu ploču 101 sa kontrolnim kolima za upravljanje sredstvom i postolje 102 koje obezbeđuje mehaničku i/ili električnu vezu između komponenata sredstva za isporučivanje tečnosti 100. Sredstvo za isporučivanje tečnosti 100 takođe može da uključuje kućište 104 koje prima štampanu ploču 101, postolje 102 i komponente 110, 130, 150, 170, 180.
[0012] Sredstvo za isporučivanje tečnosti 100 takođe može da uključuje integrisano praćenje, kao što je kontinuirano merenje glukoze (CGM). Test traka za praćenje 120 spojena sa monitorom (nije prikazano) u sredstvu 100 može supkutano da se uvede putem alata za transkutani pristup 172. Jedan primer za test traku za praćenje je CGM test traka (kao što je ona dostupna od kompanije Nova Biomedical) koja se može shvatiti kao senzor glukoze konfigurisan da testira nivo koncentracije glukoze u krvi pacijenta. Sredstvo za isporučivanje tečnosti 100 može biti konfigurisano da prima podatke od test trake za praćenje vezane za nivo glukoze kod pacijenta, i da odredi izlaz insulina iz rezervoara na osnovu nivoa glukoze.
[0013] Alat za transkutani pristup 172 uključuje trokar ili iglu za uvođenje 174 koji se barem delimično nalaze u lumenu 175 kanile 176 (npr. mekane savitljive kanile), koja može da sprovede tečnost u pacijenta. Konkretno, igla/trokar za uvođenje 174 može prvobitno da probije kožu tako da igla/trokar za uvođenje 174 kao i kanila 176 budu uvedeni (umetnuti) u pacijenta, a zatim se igla/trokar za uvođenje 174 mogu povući u kanilu 176 tako da kanila 176 ostane umetnuta. Put fluida, kao što je cevčica 178, fluidno spaja rezervoar 130 sa lumenom 175 kanile 176 alata za transkutani pristup 172. Alat za transkutani pristup 172 takođe može da se koristi za supkutano uvođenje test trake za praćenje u pacijenta u svrhe praćenja, kao što je detaljnije opisano u nastavku.
[0014] Mehanizam za inserciju alata za transkutani pristup 180 spojen je sa alatom za transkutani pristup 172 radi korišćenja alata za transkutani pristup 172, na primer, umetanjem igle/trokara 174 i kanile 176 kroz kožu pacijenta i izvlačenjem igle/trokara 174. U ilustrovanom otelotvorenju, mehanizam za inserciju 180 obuhvata povezujući mehanizam sa kosom oprugom 182 i klizne elemente 184, 186 spojene sa iglom/trokarom 174, odnosno kanilom 176, za pomeranje igle/trokara 174 i kanile 176 u smeru umetanja i za pomeranje igle/trokara 174 u smeru izvlačenja. U jednom, neprekidnom pokretu, povezujući mehanizam sa kosom oprugom 182 pomera se iz položaja pre primene (SL.1) u kome su igla/trokar 174 kao i kanila 176 uvučeni (SL.2) u srednji položaj (SL.3) u kome su igla/trokar 174 kao i kanila 176 umetnuti (SL.4) u položaj nakon primene (SL.5) u kome su igla/trokar 174 uvučeni, a kanila 176 umetnuta (SL.6).
[0015] Jedno otelotvorenje povezujućeg mehanizma sa kosom oprugom 182 uključuje spiralnu torzionu oprugu 181 i prvu i drugu spojnicu 183a, 183b spojene između torzione opruge 181 i prvog kliznog elementa 184. Energija koja je uskladištena u torzionoj opruzi 181 primenjuje silu na spojnice 183 a, 183b, koje primenjuju silu na prvi klizni element 184 radi pomeranja prvog kliznog elementa 184 u smeru umetanja kao i u smeru izvlačenja. U položaju pre primene (SL.1), torziona opruga 181 je napregnuta, a klizni elementi 184, 186 su zaključani i njihovo pomeranje je sprečeno. Kada se klizni elementi 184, 186 oslobode, energija uskladištena u torzionoj opruzi 181 dovodi do rotacije prve spojnice 183a (npr. u smeru kazaljke na satu, kao što je prikazano), koja primenjuje silu na prvi klizni element 184 preko druge spojnice 183b, što dovodi do pomeranja prvog kliznog elementa 184 sa iglom/tokarom 174 (sa drugim kliznim elementom 186) u smeru umetanja. U srednjem položaju (SL.3), spojnice 183 a, 183b su u potpunosti ispružene, pri čemu su igla/trokar 174 i kanila 176 umetnuti, drugi klizni element 186 je zaključan, a preostala energija uskladištena u torzionoj opruzi 181 dovodi do nastavka rotiranja prve spojnice 183 a, koja primenjuje suprotnu silu na prvi klizni element 184 putem druge spojnice 183b, što dovodi do toga da se prvi klizni element 184 sa iglom/trokarom 174 pomeri u smeru izvlačenja na položaj nakon aktivacije (SL.5). U ilustrovanom otelotvorenju, povlačenje drugog kliznog elementa 186 je sprečeno pomoću jednog ili više zasuna 187. Tako, kao što je prethodno opisano, kontinualna neprekidna rotacija prve spojnice 183a u smeru kazaljke na satu putem energije torzione opruge 181 omogućava mehanizmu za inserciju alata za transkutani pristup 180 da umetne i izvuče iglu/trokar 174 u jednom neprekidnom pokretu.
[0016] Povezujući mehanizam sa kosom oprugom 182 omogućava da jedna opruga i pokret ostvare umetanje kao i izvlačenje, i relativno je malih dimenzija. Povezujući mehanizam sa kosom oprugom 182 takođe smanjuje statičko naprezanje izazvano zaključavanjem i zadržavanjem kliznih elemenata 184, 186 i obezbeđuje glatkije i ugodnije umetanje igle/trokara zbog načina na koji spojnice 183a, 183b vektorišu sile primenjene na klizne elemente 184, 186. Statičke sile na kliznim elementima 184, 186 su relativno male u položaju pre primene, kada su spojnice 183a, 183b u potpunosti povučene. Kada se započne primena i spojnice 183a, 183b počnu da se produžavaju, sila umetanja raste jer se vektori sile povećavaju u smeru umetanja sa produžavanjem spojnica 183 a, 183b sve dok se ne ostvari maksimalna sila umetanja kada su potpuno ispružene, u srednjem položaju. Zahvaljujući postepenom povećavanju sile umetanja, umetanje i izvlačenje igle/trokara je glatkije, mirnije i bezbolnije.
[0017] Još jedno otelovorenje mehanizma za inserciju 280 je detaljnije prikazano na SL.7-10. Klizni elementi 284, 286 se klizno prihvataju u okvir 290 i pokreće ih povezujući mehanizam sa kosom oprugom 282 koji obuhvata torzionu oprugu 281 i spojnice 283a, 283b. U ovom otelotvorenju, krak brega 292 (npr. koji se proteže sa okvira 290) pomera se na poziciju ispod jednog ili oba klizna elementa 284, 286 kako bi zaključao klizne elemente u povučenom položaju ili položaju pre primene (SL.7). U ovom položaju pre primene, krak brega 292 zadržava se na kliznim elementima 284, 286 pomoću graničnika 296 koji može da se pomera (rotira) kako bi se omogućilo da se krak brega 292 pomeri i oslobodi klizne elemente 284, 286 (SL.8). Krak brega 292 može biti okrenut nadole i/ili drugi klizni element 286 može da ima površinu brega 287 koja olakšava kretanje duž kraka brega 292 preko mehanizma za zaključavanje 293 prilikom aktivacije.
[0018] Graničnik 296 uključuje polugu 297 za okretanje graničnika 296 između aktivnog položaja na kraku brega 292 (SL.7) i neaktivnog položaja kojim se oslobađa krak brega 292 (SL. 8). Graničnik 296 može biti nagnut ka neaktivnom položaju i držan na kraku brega 292 u aktivnom položaju sve dok poluga 297 ne bude oslobođena, što omogućava da se graničnik 296 pomeri u neaktivni položaj. U prikazanom otelotvorenju, poluga 297 stupa u interakciju sa rotacionom površinom 257 pogonskog točka 256 pogonskog mehanizma za tečnost 150 tako da poluga 297 bude zadržana u aktivnom položaju tokom dela rotacije i oslobađa se u određenom trenutku tokom rotacije (npr. kada ravni deo rotacione površine 257 dopusti da se poluga 297 pomeri).
[0019] Kao što je prikazano na SL.9 i 10, krak brega 292 takođe može da se koristi da zaključa drugi klizni element 286 u položaju za inserciju. Deo za zaključavanje 288 drugog kliznog elementa 286 aktivira deo za zaključavanje 293 kraka brega 292 kada je povezujući mehanizam 282 u potpunosti ispružen u srednjem položaju i sprečava da se drugi klizni element 286 povuče tako da kanila ostaje umetnuta. Kao što je prethodno razmotreno, drugi klizni element 286 takođe može biti zaključan sa jednim ili više zasuna (nije prikazano) koji se protežu sa vrha okvira 290.
[0020] Uz upućivanje na SL.11-16, pogonski mehanizam za tečnost 150 prema predmetnom pronalasku koristi mehanizam kvačila 160 da omogući punjenje rezervoara 130 i aktivaciju pogonskog mehanizma za tečnost 150 za izbacivanje tečnosti van rezervoara 130. Pogonski mehanizam za tečnost 150 uključuje prvi element sa navojem u obliku izdužene osovine kao što je pogonski klip sa navojem ili vodeći vijak 152, sa spoljašnjim navojima koji se protežu od klipa 136 koji se nalazi u rezervoaru 130 i zaptiven je zaptivkom 137 na unutrašnjoj površini rezervoara 130. Vodeći vijak 152 i klip 136 mogu biti neodvojiv sklop oblikovan brizganjem plastike. Drugi element sa navojem u obliku izdužene osovine, kao što je cevasta navrtka 154 sa unutrašnjim navojima, putem navoja zahvata vodeći vijak 152 i može da se pokreće pogonskim točkom 156 preko mehanizma kvačila 160.
[0021] Kada je rezervoar 130 prazan (SL.11 i 12), klip 136 je pozicioniran na jednom kraju rezervoara 130 tako da je klip 136 ispružen, a mehanizam kvačila 160 je neaktivan. U nekim otelotvorenjima, rezervoar 130 može biti napunjen tečnošću, naročito insulinom, putem otvaranja ulaznog priključka za rezervoar 130 i pumpanjem insulina pod dovoljnim hidrauličnim pritiskom za povlačenje klipa 136 u rezervoar 130. Nakon toga, ulazni priključak može biti zatvoren. Kada je rezervoar 130 napunjen i klip 136 se pomera na suprotni (uvučeni) kraj rezervoara 130 (SL.13), mehanizam kvačila 160 ostaje neaktivan kako bi omogućio da cevasta navrtka 154 pređe u izduženi cilindrični otvor (duž pogonske ose) glavčine pogonskog točka 156. Mehanizam kvačila 160 zatim može da se aktivira (SL.
14-16) tako da rotacija pogonskog točka 156 dovodi do toga da mehanizam kvačila 160 okreće cevastu navrtku 154, usled čega vodeći vijak 152 gura klip u rezervoar 130 kako bi se isporučila tečnost iz rezervoara 130. U alternativnim otelotvorenjima, rezervoar 130 može biti napunjen kada je klip 136 već povučen.
[0022] U ilustrovanom otelotvorenju, mehanizam kvačila 160 uključuje oprugu kvačila 162 (npr. spiralnu torzionu oprugu) koja se nalazi u provrtu na jednom kraju pogonskog točka 156, pored rezervoara 130. Unutrašnji prečnik opruge kvačila 162 je veći od spoljašnjeg prečnika cevaste navrtke 154 kada je opruga kvačila 162 napregnuta, čime se opruga kvačila 162 izvlači iz cevaste navrtke 154 i omogućava da cevasta navrtka 154 prođe kroz centralni otvor opruge 162 i u izduženi otvor pogonskog točka 156. Alternativno, unutrašnji prečnik opruge kvačila 162 je manji od spoljašnjeg prečnika cevaste navrtke 154 kada je opruga kvačila 162 nenapregnuta, te tako aktivira ili steže cevastu navrtku 154 i omogućava da pogonski točak 156 okreće cevastu navrtku 154. U ilustrovanom otelotvorenju, pre punjenja rezervoara 130, opruga kvačila 162 zadržana je u napregnutom, neaktivnom položaju putem zasuna opruge 164 koji je u interakciji sa pogonskim točkom 156 (SL.11-13). Nakon što je rezervoar 130 napunjen, opruga kvačila 162 na taj način može da se aktivira rotacijom pogonskog točka 156 sve dok zasun opruge 164 ne oslobodi oprugu kvačila 162 (SL.14) što omogućava da se opruga kvačila 162 oslobodi i stegne cevastu navrtku 154 (SL.15 i 16), nakon čega tečnost može da se dozira iz rezervoara 130 uz kontinualno okretanje pogonskog točka 156.
[0023] Kao što je prikazano, zasun opruge 164 može biti usmeren putem zasuna opruge 162 tako da, dok se pogonski točak 156 rotira, zasun opruge 164 se rotaciono kreće oko površine zatvarača rezervoara 132 sve dok opruga kvačila 162 ne skrene zasun opruge 164 u prorez 133 u zatvaraču rezervoara 132. Kada se zasun opruge 164 pomeri u prorez 133, oslobađa se kraj opruge kvačila 162 koji je držan putem zasuna opruge 164, čime se aktivira mehanizam kvačila 160. Kada je mehanizam kvačila 162 aktiviran, pogonski točak 156 dolazi u kontakt sa krajem 163 opruge kvačila 162 kako bi nastao pritisak na oprugu kvačila 162 usled čega opruga kvačila 162 okreće cevastu navrtku 154. U pogonskom mehanizmu za tečnost 150 takođe mogu da se koriste drugi mehanizmi kvačila koji mogu da obezbede da cevasta navrtka 154 ili neki drugi tip navrtke ili elementa sa navojem prođe kroz mehanizam kvačila i zatim bude aktiviran da zahvata navrtku ili element sa navojem.
[0024] U ilustrovanom otelotvorenju, pogonski točak 156 uključuje ozubljenja 157 koja aktiviraju aktuator 158 da postepeno pokreće točak 156 i gura klip 136 u rezervoar 130.
Primeri ovog aktivacionog mehanizma su detaljnije opisani u U.S. publikaciji patentne prijave br.2005/0238507.
[0025] Kada se koristi mehanizam kvačila, interakcija između vodećeg vijka i navrtke se vrši pri sklapanju, te tako nije potrebna rotacija da bi navrtka stupala u interakciju sa vodećim vijkom tokom rada sredstva. Ovo smanjuje broj primarnih impulsa putanje tečnosti za pripremu pumpe i osigurava kompletnu i odgovarajuću pripremu putanje tečnosti pre postavljanja na telo. Mehanizam kvačila takođe omogućava promenu koraka navoja za primenu drugih lekova bez potrebe da se menja dizajn navrtke s nagibom koja se koristi u mehanizmima za pogon tečnosti u drugim postojećim pumpama. Komponente mehanizma kvačila se takođe lakše pregledaju od sklopa navrtke s nagibom.
[0026] Prema jednom otelotvorenju, kao što je prikazano na SL.17-23, kanila 176 koja obezbeđuje transkutani pristup za isporučivanje tečnosti takođe može da se koristi za uvođenje test trake za praćenje 120. U ovom otelotvorenju, kanila 176 ima prvi lumen 175 u koji staje igla/trokar 174 i drugi lumen 177 u koji staje test traka 120. Kao što je prikazano, prvi lumen 175 ima kružni (cilindrični) profil, a drugi lumen 177 ima pravougaoni profil. Kanila 176 takođe može da obuhvata jedan ili više prozora 179a, 179b koji omogućavaju pristup do jednog ili više senzora 122a, 122b na test traci 120. Kao što je prikazano, više prozora 179a, 179b kanile 176 može biti postavljeno na istoj strani bočnog zida kanile 176, gde se prvi prozor 179a nalazi na rastojanju od distalnog kraja vrha kanile 176 koje je manje od rastojanja drugog prozora 179b od distalnog kraja vrha kanile 176.
[0027] Radi umetanja test trake 120 u drugi lumen 177, test traka 120 ulazi u drugi lumen 177 na glavi 178 kanile 176 i proteže se do prozora 179a, 179b. Tako, najmanje jedan prozor 179a, 179b otkriva senzor 122a, 122b test trake za praćenje 120. U primeru otelotvorenja, obezbeđena su dva prozora 179a, 179b, pri čemu prozor 179a koji je najbliži vrhu kanile 176 omogućava pristup glavnoj senzorskoj oblasti, a prozor 179b koji je najdalji od vrha obezbeđuje referencu. Iako je prikazan određeni oblik i konfiguracija dvolumenske kanile, druge konfiguracije kanile sa prvim i drugim lumenom takođe mogu da se koriste za isporučivanje terapeutske tečnosti kao i za supkutano uvođenje test trake.
[0028] Prema još jednom otelotvorenju, kao što je prikazano na SL.24-34, sredstvo za isporučivanje tečnosti 300 može da obuhvata alat za transkutani pristup 372 sa prvom kanilom 376 za isporučivanje tečnosti i drugom kanilom 377 za uvođenje test trake 320. Prva kanila 376 obuhvata prvu iglu/trokar 374 (prikazano kao kružna igla) kako bi se omogućilo umetanje prve kanile 376, a druga kanila 377 obuhvata drugu iglu/trokar 375 (prikazano kao polukružni trokar) kako bi se omogućilo umetanje druge kanile 377. Sredstvo za isporučivanje tečnosti 300 uključuje mehanizam za inserciju 380, slično prvom otelotvorenju koje je prethodno opisano, ali kod koga su klizni elementi 384, 386 spojeni sa iglom 374 kao i sa trokarom 375 i sa obe kanile 376, 377. Mehanizam za inserciju 380 ubacuje drugu kanilu 377 i trokar 375, a zatim izvlači trokar 375 na isti način kao što je prethodno opisano. Test traka 320 ostaje umetnuta nakon izvlačenja trokara 375. Tako, prva igla/trokar 374 kao i druga igla/trokar 375 mogu istovremeno da se uvedu u pacijenta, naročito kako bi se smanjio bol od uzastopnog umetanja.
[0029] Slično prethodno opisanom otelotvorenju, prva kanila 376 ima kružni (cilindrični) lumen 376a. Kao što je detaljnije prikazano na SL.30-32, druga kanila 377 ima polukružni (u obliku slova „D“) lumen 377a koji omogućava da traka za praćenje bude postavljena relativno ravno u kanili 377. Druga kanila 377 takođe obuhvata jedan ili više prozora 379a, 379b koji omogućavaju pristup do jednog ili više senzora 320a, 320b na test traci 320 (videti SL. 27 i 29). Kao što je prikazano, slično prethodnom otelotvorenju, više prozora 379a, 379b kanile 377 može biti postavljeno na istoj strani bočnog zida kanile 377, pri čemu se prvi prozor 379a nalazi na rastojanju od distalnog kraja vrha kanile 377 koje je manje od rastojanja drugog prozora 379b od distalnog kraja vrha kanile 377. Tako, najmanje jedan prozor 379a, 379b otkriva senzor 320a, 320b test trake za praćenje 320. U primeru otelotvorenja, obezbeđena su dva prozora 379a, 379b, pri čemu prozor 379a koji je najbliži vrhu kanile 377 omogućava pristup glavnoj senzorskoj oblasti, a prozor 379b koji je najdalji od vrha obezbeđuje referencu. Kao što je detaljnije prikazano na SL.33 i 34, trokar 375 ima oblik koji odgovara lumenu 377a u obliku slova „D“, što omogućava da se trokar 375 izvuče pri čemu test traka 320 ostaje umetnuta (videti SL. 29). Kao što je prikazano, trokar ima planarnu bočnu površinu 373 koja odgovara planarnoj test traci 320 tako da, kada je sklopljena, planarna test traka 320 može da se nalazi pored planarne bočne površine 373 trokara 375 u drugoj kanili 377.
[0030] Prema još jednom otelotvorenju, kao što je prikazano na SL. 35-43, sredstvo za isporučivanje tečnosti 400 može da obuhvata alat za transkutani pristup 472 sa kanilom 476 za isporučivanje tečnosti i iglu ili trokar 475 (prikazano kao polukružni trokar) za uvođenje test trake 420. Kanila 476 obuhvata iglu/trokar 474 (prikazano kao kružna igla) kako bi se olakšalo umetanje kanile 476 i trokar 475 se umeće sa test trakom 420. Sredstvo za isporučivanje tečnosti 400 uključuje mehanizam za inserciju 480, slično prvom otelotvorenju koje je prethodno opisano, ali gde su klizni elementi 484, 486 spojeni sa iglom 474 kao i trokarom 475. Mehanizam za inserciju 480 umeće trokar 475 (SL.37 i 38) i zatim izvlači trokar 475 (SL.39 i 40) na isti način kao iglu/trokar koji su prethodno opisani. Test traka 420 ostaje umetnuta nakon izvlačenja trokara 475 (SL.41). Nasuprot prethodnom otelotvorenju, igla/trokar 475 supkutano samostalno uvodi test traku za praćenje 420 (tj. bez uvođenja test trake za praćenje 420 sa kanilom).
[0031] Trokar 475 je detaljnije prikazan na SL.42. Drugi klizni element 486 je detaljnije prikazan na SL.43. U ovom otelotvorenju, drugi klizni element 486 je konstruisan da uhvati kanilu 476 i da obuhvati trokar 475 i omogući mu prolaz.
[0032] Shodno tome, u različitim otelotvorenjima sredstva za isporučivanje tečnosti, alat za transkutani pristup može da se koristi za isporučivanje tečnosti kao i za supkutano uvođenje test trake kako bi se obezbedilo integrisano praćenje.
[0033] Iako su principi pronalaska opisani u ovom tekstu, stručnjacima za ovu oblast će biti jasno da ovaj opis predstavlja samo primer, a ne ograničenje opsega pronalaska. Pored reprezentativnih otelotvorenja koja su ovde prikazana i opisana, u opsegu predmetnog pronalaska su razmatrana i druga otelotvorenja. Smatra se da su izmene i zamene koje vrši stručnjak obuhvaćene predmetnim pronalaskom, koji je ograničen samo putem sledećih zahteva.

Claims (5)

Patentni zahtevi
1. Sredstvo za isporučivanje tečnosti koje obuhvata:
rezervoar za tečnost (130);
alat za transkutani pristup (172) fluidno spojen sa rezervoarom za tečnost (130); i pogonski mehanizam (150) za pokretanje tečnosti iz rezervoara (130), pri čemu pogonski mehanizam sadrži:
pogonski točak (156; 256);
klip (136) koji se nalazi u rezervoaru (130); i
vodeći vijak (152) koji se proteže sa klipa (136);
naznačeno time što pogonski mehanizam (150) dalje sadrži:
navrtku (154) koja je preko navoja zahvaćena vodećim vijkom (152); i mehanizam kvačila (160) spojen sa pogonskim točkom (156; 256), pri čemu je mehanizam kvačila (160) konfigurisan tako da omogući da navrtka (154) prođe kroz mehanizam kvačila (160) kada je neaktivan i konfigurisan je da stegne navrtku (156) kada je aktivan tako da pogonski točak (156; 256) rotira navrtku (156) radi uvođenja vodećeg vijka (152) i klipa (136) u rezervoar (130).
2. Sredstvo za isporučivanje tečnosti iz zahteva 1, pri čemu, navrtka (156) je cevasta navrtka.
3. Sredstvo za isporučivanje tečnosti iz zahteva 2, pri čemu mehanizam kvačila (160) uključuje oprugu kvačila (162) koja steže cevastu navrtku kada se oslobodi.
4. Sredstvo za isporučivanje tečnosti iz zahteva 3, pri čemu mehanizam kvačila (160) dalje uključuje zasun reze (164) konfigurisan tako da drži oprugu kvačila (162) u neaktivnom položaju i konfigurisan da oslobodi oprugu kvačila (162) tako da se opruga kvačila (162) pomeri u aktivirani položaj.
5. Sredstvo za isporučivanje tečnosti iz zahteva 4, pri čemu, zasun opruge (164) konfigurisan je da oslobodi oprugu kvačila (162) usled pomeranja pogonskog točka (156; 256).
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