NO168087B - Hjelpeinnretning for hoeyre hjertekammer - Google Patents
Hjelpeinnretning for hoeyre hjertekammer Download PDFInfo
- Publication number
- NO168087B NO168087B NO851073A NO851073A NO168087B NO 168087 B NO168087 B NO 168087B NO 851073 A NO851073 A NO 851073A NO 851073 A NO851073 A NO 851073A NO 168087 B NO168087 B NO 168087B
- Authority
- NO
- Norway
- Prior art keywords
- bis
- imide
- acid
- radical
- imid
- Prior art date
Links
- 210000005242 cardiac chamber Anatomy 0.000 title 1
- 239000002253 acid Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 125000004432 carbon atom Chemical group C* 0.000 claims description 6
- 229920001721 polyimide Polymers 0.000 claims description 6
- 125000000732 arylene group Chemical group 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 5
- 239000004642 Polyimide Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 125000003118 aryl group Chemical group 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 101710125089 Bindin Proteins 0.000 claims 1
- 150000001990 dicarboxylic acid derivatives Chemical class 0.000 claims 1
- 125000001475 halogen functional group Chemical group 0.000 claims 1
- 239000008280 blood Substances 0.000 abstract 1
- 210000004369 blood Anatomy 0.000 abstract 1
- 229920002635 polyurethane Polymers 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
- 230000002861 ventricular Effects 0.000 abstract 1
- 239000011976 maleic acid Substances 0.000 description 16
- 150000003254 radicals Chemical class 0.000 description 13
- 239000007787 solid Substances 0.000 description 10
- 239000002904 solvent Substances 0.000 description 10
- 239000004305 biphenyl Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 5
- 150000001991 dicarboxylic acids Chemical class 0.000 description 4
- 150000008064 anhydrides Chemical class 0.000 description 3
- -1 at least one N Inorganic materials 0.000 description 3
- 150000004985 diamines Chemical class 0.000 description 3
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 2
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 2
- 239000009719 polyimide resin Substances 0.000 description 2
- DJKGDNKYTKCJKD-BPOCMEKLSA-N (1s,4r,5s,6r)-1,2,3,4,7,7-hexachlorobicyclo[2.2.1]hept-2-ene-5,6-dicarboxylic acid Chemical compound ClC1=C(Cl)[C@]2(Cl)[C@H](C(=O)O)[C@H](C(O)=O)[C@@]1(Cl)C2(Cl)Cl DJKGDNKYTKCJKD-BPOCMEKLSA-N 0.000 description 1
- PNNFEYPWPCDLOC-UPHRSURJSA-N (z)-2,3-dichlorobut-2-enedioic acid Chemical compound OC(=O)C(\Cl)=C(\Cl)C(O)=O PNNFEYPWPCDLOC-UPHRSURJSA-N 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000005840 aryl radicals Chemical class 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- LBVWYGNGGJURHQ-UHFFFAOYSA-N dicarbon Chemical class [C-]#[C+] LBVWYGNGGJURHQ-UHFFFAOYSA-N 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/10—Location thereof with respect to the patient's body
- A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
- A61M60/126—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel
- A61M60/148—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/10—Location thereof with respect to the patient's body
- A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
- A61M60/126—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel
- A61M60/152—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel branching on and drawing blood from a blood vessel
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/20—Type thereof
- A61M60/247—Positive displacement blood pumps
- A61M60/253—Positive displacement blood pumps including a displacement member directly acting on the blood
- A61M60/268—Positive displacement blood pumps including a displacement member directly acting on the blood the displacement member being flexible, e.g. membranes, diaphragms or bladders
- A61M60/274—Positive displacement blood pumps including a displacement member directly acting on the blood the displacement member being flexible, e.g. membranes, diaphragms or bladders the inlet and outlet being the same, e.g. para-aortic counter-pulsation blood pumps
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/40—Details relating to driving
- A61M60/424—Details relating to driving for positive displacement blood pumps
- A61M60/427—Details relating to driving for positive displacement blood pumps the force acting on the blood contacting member being hydraulic or pneumatic
- A61M60/432—Details relating to driving for positive displacement blood pumps the force acting on the blood contacting member being hydraulic or pneumatic with diastole or systole switching by stopping or reversing the blood pump operating at a much higher cyclical speed than the heart beat
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/50—Details relating to control
- A61M60/508—Electronic control means, e.g. for feedback regulation
- A61M60/515—Regulation using real-time patient data
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/835—Constructional details other than related to driving of positive displacement blood pumps
- A61M60/837—Aspects of flexible displacement members, e.g. shapes or materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES 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
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/855—Constructional details other than related to driving of implantable pumps or pumping devices
- A61M60/869—Compliance chambers containing a gas or liquid other than blood to compensate volume variations of a blood chamber
Landscapes
- Health & Medical Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Engineering & Computer Science (AREA)
- Cardiology (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Vascular Medicine (AREA)
- Medical Informatics (AREA)
- External Artificial Organs (AREA)
- Prostheses (AREA)
- Massaging Devices (AREA)
- Eye Examination Apparatus (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Electrotherapy Devices (AREA)
Description
Fremgangsmåte til fremstilling av
en nett-dannet polyimidplast.
Foreliggende oppfinnelse angår en fremgangsmåte
til fremstilling av en nett-dannet polyimidplast, hvilken består i å oppvarme til en temperatur mellom 8o° og 4-00°C, fortrinnsvis mellom 100° og 300°C, minst et N,N'-bis-imid av en umettet dikarbon-
syre svarende til den generelle formel
hvori R-^ betyr et toverdig radikal omfattende flere karbonatomer,
Ro betyr et toverdig radikal som omfatter minst en dobbelt-binding.
I den fremgangsmåte som er angitt i patent nr. 110.465} kan radikalet R-^ være en alkyl-rest som kan være substituert eller usubstituert, eller en substituert eller usubstituert•arylrest som kan være hydrert eller ikke, eller substituert eller usubstituert, hydrert eller ikke hydrert arylen-rest bundet med minst ett av fSi-gende radikaler: -CH^-, - SOr,- og -0-. Radikalet R^ omfatter minst en dobbelt-binding og fortrinnsvis svarende til en av folgende to formler:
hvori R^ til Rg or hydrogenatomer, substituerte eller usubstituerte alkyl-rester eller substituerte eller usubstituerte eller hydrerte eller ikke-hydrerte arylen-rester, idet disse rester omfatter ett eller flere karbonatomer.
De nett-dannede polyimid-harpikser som oppnås ved hjelp av denne fremgangsmåte, er usmeltelige, uoppløselige i orga-niske opplSsningsmidler og har forhSyet mekanisk motstandsevne og termisk stabilitet. De er allikevel brennbare, hvilket gjSr dem uskikket for utnyttelse på visse områder.
Foreliggende oppfinnelse angår således en fremgangsmåte til fremstilling av en nettdannet polyimidplast, hvilken består i at minst ett N,N<*->bis-imid av en umettet dikarbonsyre svarende til den generelle formel: ;hvori betyr et to-verdig radikal' omfattende flere karbonatomer, R2 betyr et to-verdig radikal som omfatter minst en dobbelt-binding, oppvarmes til en temperatur mellom 80° og 400°C, fortrinnsvis mellom 100° og 300°C, eventuelt i nærvær av en katalysator som kan gi frie radikaler, og den er karakterisert ved at det anvendes en for- ;bindelse hvor R-^ er en arylenrest eller en halogenert arylenrest, eller hvor flere av disse rester er bundet direkte eller ved minst ett av følgende radikaler hvor R er en arylrest og ved at Rr, i den anvendte forbindelse er et radikal som har en av <r>ølgende formler ;hvor R^ og R^ er hydrogen eller halogen, R^ er et fireverdig radikal som inneholder minst fire karbonatomer, idet minst et av radikalene R-j og Rj3 inneholder minst et halogenatom. ;Fremgangsmåten består således i å polymerisere minst ett halogenert N,N'-bis-imid. Et slikt bis-imid kan fås enten ved å gå ut fra et halogenert diamin eller fra et anhydrid av en umettet dikarbonsyre, eller ved å gå ut fra et diamin og fra et anhydrid av en umettet og halogenert dikarbonsyre, eller ved å gå ut fra et halogenert diamin og et anhydrid av en umettet og halogenert dikarbonsyre. ;Man anvender fortrinnsvis N,N'-bis-imider av følgende syrer: maleinsyre, diklormaleinsyre og klorendiksyre (heksaklorendometylentetrahydroftalsyre) og særlig: ;- N,N'-4-klor-m-fenylen-bis-imid-maleinsyre ;- N,N'- 2,5-diklor-m-fenylen-bis-imid-maleinsyre ;- N,N'-p,p'-3,3<*->diklordifenyleter-bis-imid-maleinsyre
- N,N'-p,p'-3,3'-diklorbenzidin-bis-imid-maleinsyre
- N,N'-p,p'-3,5> 3'> 5'-tetraklorbenzidin-bis-imid-maleinsyre
- N,N'-p,p,-3,3'-dibrombenzidin-bis-imid-maleinsyre
- N,N'-p,p'-313'-diklordifenylmetan-bis-imid-maleinsyre
- N,N'-p,p'-trifenyl-oksyd av fosfin-bis-imid-diklor-maleinsyre
- N,N'-p,p'-difenyleter-bis-imid-diklormaleinsyre
- N,N'-p,p'-3,3'-diklorbenzidin-bis-imid-diklormaleinsyre
- N,N' -p,p' - 3,3' -dibromdif enylmetan-bis-imid-rdiklor-maleinsyre
- N,N'-p,p'-difenyleter-bis-imid-heksaklorendometylen-tetrahydroftal-syre - N,N'-p,p'-2,2'-diklor-3> 3'-dimetylbenzidin-bis-imid-heksaklorendo-metylen-tetrahydroftalsyre - N,N'-p,p'-difenylmetan-bis-imid-heksaklorendometylen-okta-hydro-naftalensyre.
Polymerisasjonsreaksjorten kan utføres i nærvær
av en katalysator som kan gi frie radikaler, slik som f.eks. et peroksyd, særlig dikumylperoksyd og dibenzoylperoksyd. Man kan likeledes anvende et azoderivat, slik som f.eks.■azo-bis-isobutyro-nitril.
Med hensyn til den mengde katalysator som skal anvendes, kan den velges slik at molar-forholdet mellom bis-imidet og katalysatoren skal være mellom 1:0,001 og 1:0,05»
Utførelsen av den ovenfor beskrevne fremgangsmåte kan f.eks. gjøres på følgende måte:
EKSEMPEL 1
Man oppvarmer 10 g N,N'-p,p'-3,3'-diklor-benzidin-bis-imid-maleinsyre til 350°C. Det smeltede produkt størkner. Man oppvarmer deretter i løpet av 3^ timer til 220°C. Det faste stoff som fås på denne måte er ubrennbart, uoppløselig i alle oppløsnings-midler og spaltes henimot ^ rJ0°C.
EKSEMPEL 2
10 g N,N'-p,p'-difenyleter-bis-imid-diklormaleinsyre oppvarmes til 270°C. Det smeltede produkt størkner. Deretter oppvarmes igjen i 38 timer til 220°C. Det erholdte faste stoff er ubrennbart, uoppløselig i alle oppløsningsmidler, og det spaltes over 500°C.
EKSEMPEL
10 g NjftM-p^-difenyleter-bis-imid-heksaklor-endometylen-tetrahydroftalsyre oppvarmes,til 360°C. Det smeltede produkt størkner. Man oppvarmer påny i 38 timer til 220°C. Det faste erholdte■stoff er ubrennbart, uoppløselig i alle oppløsnings-midler, og det spaltes over ^ >QQ°G.
EKSEMPEL 4
3 g N,N'-3)3'-diklorbenzidin-bis-imid-maleinsyre og 7 g N,N'-p,p'-difenyleter-bis-imid-maleinsyre oppvarmes til 250°C. Det smeltede produkt størkner. Deretter oppvarmes igjen i 38 timer til 220°C. Det erholdte faste stoff er uoppløselig i alle oppLøs-ningsmidler, og det spaltes henimot ^. rJ0°G.
EKSEMPEL 5
5 g N,N'-p,p'-difenyleter-bis-imid-diklor-maleinsyre og 5 £ N,N'-p,p'-difenyleter-bis-imid-maleinsyre oppvarmes til 240°C. Det smeltede stoff størkner. Deretter oppvarmes på ny i 38 timer til 220°C. Det erholdte faste stoff er uoppløselig i alle oppløsningsmidler, og det spaltes henimot 470°C.
EKSEMPEL 6
3 g N,N'-p,p'-difcnyleter-bis-imid-heksaklorendo-metylen-tetrahydroftalsyre og 7 £ N,N'-p,p'-difen leter-bis-imid-maleinsyre oppvarmes til 250°C. Det smeltede produkt størkner. Deretter oppvarmes igjen i 38 timer til 220°C. Det erholdte faste stoff er uoppløselig i alle oppløsningsmidler og det spaltes henimot 470°C.
EKSEMPEL 7
Man oppvarmer 10 g N,N'-p,p'-3,3'-diklorbenzidin-bis-imid-diklormaleinsyre til 350°C Det smeltede produkt størkner. Deretter oppvarmes igjen i 38 timer til 220°C. Det erholdte faste stoff er ubrennbart, uoppløselig i alle oppløsningsmidler, og det spaltes henimot /\. rJ0°C.
EKSEMPEL 8
10 g N,N'-2,5-diklor-m-fenylen-bis-imid-maleinsyre blandes med 0,02 g dikumylperoksyd, og blandingen oppvarmes til 270°C. Det smeltede produkt størkner. Deretter oppvarmes i 38 timer til 220°C. Det faste stoff er ubrennbart, uoppløselig i alle oppløsnings-midler, og det spaltes henimot 470°C.
EKSEMPEL 9
10 g N,N'-p,p'-3>3'-dibrombenzidin-bis-imid-maleinsyre oppvarmes til 360°C. Det smeltede produkt størkner. Deretter oppvarmes igjen i 38 timer til 220°C. Det erholdte faste stoff er ubrennbart, uoppløselig i alle oppløsningsmidler, og det spaltes henimot 470°C.
EKSEMPEL 10
10 g N,N'-p,p'-trifenyl-oksyd av fosfin-bis-imid-diklor-maleinsyre oppvarmes til 360°C. Det smeltede produkt størkner. Deretter oppvarmes på ny i 38 timer til 220°C. Det erholdte faste stoff er ubrennbart, uoppløselig i alle oppløsningsmidler, og det spaltes henimot 460°C.
Som man ser av disse eksempler, tillater fremgangsmåten som utgjør gjenstanden for foreliggende oppfinnelse, at det oppnås ubrennbare polyimid-harpikser hvilke har en forhøyet mekanisk motstandsevne og en forhøyet termisk stabilitet. Disse harpikser finner anvendelse over alt hvor slike egenskaper kreves,
Oiurlij; ved konstruksjon of, å termiske iuoJasjoner of, elektriske
anlegg.
Claims (1)
1. Fremgangsmåte tii fremstilling av en ncttdannet
polyimidplast, hvilken består i at minst ett N,N<f->bis-imid av en
umettet dikarbonsyre svarende tii den generelle formel:
hvori R-^ betyr et to-verdig radikal omfattende flere karbonatomer,
IL, betyr et to-verdig radikal som omfatter minst en dobbolt-bindin/',,
oppvarmes til en temperatur mellom 80° o<r. /|00°C, fortrinnsvis mellom
100° otf 300°C, eventuelt i na;rva;r at en katalysator som kan p,i fri
radikaler, i henhold til patent nr. 110.4£>5» karakteri
sert ved at det anvendes on forbindelse hvor or en arylen-
rest eller on halo/r,eriert arylenrest, eller hvor flore av .disse res
ter er bundet direkte eller ved minst ett av Joikende radikaler
hvor R er en arylrest o\ r, ved at Ry i den anvendte forbindelse er ot
radikal som har en av lolgorulo formler
hvor R^ o/.', R^ er hydrof.en eller halogen, R^ er et firovcrdij; radikal
som inneholder minst fire karbonatomer, idet minst ett av radikalene
Ilj^ or, Ry inneholder minst ett halof.onatom.
' d. Fr omfari/', småte iffllr.e krav i, karakteri
sert ved at det som N,N'-bis-imid anvendes ett a<y> foldende
bis-imider: - N ,N'-p,pf -3>3' -diklorbcjiiuidin-liis-imid-maloinoyro - N ,N' -p ,p* -3,3' -dibroinbfjrizidiii-bia-imid-muloiiisyrf) - N,N'-p,p'-trifonyl-okuyd uv fosfin-bis-imid-diklormaloinsyro - N ,N* -p,p*-dif enyloter-bis-imid-diklorinaloirisyr<2 - N ,N' -p,p' -3>3' -diklorbunzidiii-bis-imid-diklomialuinsyro - N ,N* -p ,pf -dif enyletor-bis-imid-heksaklorendometylen-totrahydroftal-syre.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/590,813 US4573997A (en) | 1984-03-19 | 1984-03-19 | Right ventricular assist device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO851073L NO851073L (no) | 1985-09-20 |
| NO168087B true NO168087B (no) | 1991-10-07 |
| NO168087C NO168087C (no) | 1992-01-15 |
Family
ID=24363829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO851073A NO168087C (no) | 1984-03-19 | 1985-03-18 | Hjelpeinnretning for hoeyre hjertekammer |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4573997A (no) |
| EP (1) | EP0156289B1 (no) |
| JP (1) | JPS60212159A (no) |
| AT (1) | ATE56621T1 (no) |
| AU (1) | AU574142B2 (no) |
| CA (1) | CA1234953A (no) |
| DE (1) | DE3579718D1 (no) |
| DK (1) | DK168517B1 (no) |
| GR (1) | GR850678B (no) |
| IE (1) | IE56530B1 (no) |
| NO (1) | NO168087C (no) |
Families Citing this family (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4666443A (en) * | 1986-04-18 | 1987-05-19 | Novacor Medical Corporation | Biventricular circulatory assist system and method |
| FR2609886B1 (fr) * | 1987-01-27 | 1989-07-28 | Didier Lapeyre | Prothese cardiaque totale perfectionnee |
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| DK1715902T3 (en) * | 2004-01-08 | 2016-09-05 | Sullivan Paul Joseph | Non-destructive fluid transfer device |
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| US20060184199A1 (en) * | 2005-02-14 | 2006-08-17 | O'leary Shawn | Apparatus and methods for reducing bleeding from a cannulation site |
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| US8550973B2 (en) * | 2006-01-09 | 2013-10-08 | Cardiacassist, Inc. | Percutaneous right ventricular assist apparatus and method |
| CN101472627B (zh) * | 2006-01-30 | 2013-05-08 | 国立成功大学 | 双元脉动双心室辅助装置 |
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| US8376927B2 (en) | 2008-03-28 | 2013-02-19 | Vitalmex Internacional S.A. De S.V. | Fluid pumping ventricular assist device and components with static seal |
| US7811318B2 (en) * | 2008-04-23 | 2010-10-12 | Syncardia Systems, Inc. | Apparatus and method for pneumatically driving an implantable medical device |
| US8523756B2 (en) * | 2008-12-31 | 2013-09-03 | National Cheng Kung University | Cardiac compression system |
| US8562519B2 (en) | 2009-12-31 | 2013-10-22 | Cardiacassist, Inc. | Pumping system and method for assisting a patient's heart |
| WO2012166980A2 (en) | 2011-05-31 | 2012-12-06 | Nxstage Medical, Inc. | Pressure measurement devices, methods, and systems |
| WO2020160526A2 (en) * | 2019-02-01 | 2020-08-06 | Kardiatec SA | Pressure unloading left ventricular assist device and methods for assisting a human heart |
| EP3862036A1 (en) * | 2020-02-07 | 2021-08-11 | HTC-Assistance | Implantable device for long-term assist of the right ventricle of a heart |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1503906A (fr) * | 1966-10-18 | 1967-12-01 | Nouveau ventricule cardiaque artificiel | |
| US4034742A (en) * | 1973-01-31 | 1977-07-12 | Thoma Dipl Ing Dr Techn Herwig | Apparatus for mechanically assisting circulation of the blood in the human body |
| US4080958A (en) * | 1976-02-27 | 1978-03-28 | Datascope Corporation | Apparatus for aiding and improving the blood flow in patients |
| US4222127A (en) * | 1978-06-02 | 1980-09-16 | Donachy And Pierce | Blood pump and method of pumping blood |
| US4240409A (en) * | 1979-02-21 | 1980-12-23 | Thermo Electron Corporation | Apparatus for assisting circulation of blood |
-
1984
- 1984-03-19 US US06/590,813 patent/US4573997A/en not_active Expired - Fee Related
-
1985
- 1985-03-14 CA CA000476570A patent/CA1234953A/en not_active Expired
- 1985-03-18 NO NO851073A patent/NO168087C/no unknown
- 1985-03-18 AU AU40049/85A patent/AU574142B2/en not_active Ceased
- 1985-03-18 GR GR850678A patent/GR850678B/el unknown
- 1985-03-19 DK DK123885A patent/DK168517B1/da not_active IP Right Cessation
- 1985-03-19 IE IE691/85A patent/IE56530B1/en not_active IP Right Cessation
- 1985-03-19 DE DE8585103172T patent/DE3579718D1/de not_active Expired - Fee Related
- 1985-03-19 EP EP85103172A patent/EP0156289B1/en not_active Expired - Lifetime
- 1985-03-19 AT AT85103172T patent/ATE56621T1/de not_active IP Right Cessation
- 1985-03-19 JP JP60055602A patent/JPS60212159A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| CA1234953A (en) | 1988-04-12 |
| AU4004985A (en) | 1985-09-26 |
| IE56530B1 (en) | 1991-08-28 |
| IE850691L (en) | 1985-09-19 |
| EP0156289B1 (en) | 1990-09-19 |
| ATE56621T1 (de) | 1990-10-15 |
| DK168517B1 (da) | 1994-04-11 |
| DK123885A (da) | 1985-09-20 |
| GR850678B (no) | 1985-07-19 |
| NO851073L (no) | 1985-09-20 |
| EP0156289A3 (en) | 1986-10-08 |
| EP0156289A2 (en) | 1985-10-02 |
| NO168087C (no) | 1992-01-15 |
| JPS60212159A (ja) | 1985-10-24 |
| US4573997A (en) | 1986-03-04 |
| DK123885D0 (da) | 1985-03-19 |
| JPH0552227B2 (no) | 1993-08-04 |
| DE3579718D1 (de) | 1990-10-25 |
| AU574142B2 (en) | 1988-06-30 |
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