NO158778B - Roterende skjaereredskap for fjerning av intraarterielle avleiringer. - Google Patents
Roterende skjaereredskap for fjerning av intraarterielle avleiringer. Download PDFInfo
- Publication number
- NO158778B NO158778B NO830373A NO830373A NO158778B NO 158778 B NO158778 B NO 158778B NO 830373 A NO830373 A NO 830373A NO 830373 A NO830373 A NO 830373A NO 158778 B NO158778 B NO 158778B
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- Prior art keywords
- phosphates
- ppm
- content
- phosphate
- exhaust gas
- Prior art date
Links
- 238000001361 intraarterial administration Methods 0.000 title 1
- 229910019142 PO4 Inorganic materials 0.000 claims description 29
- 235000021317 phosphate Nutrition 0.000 claims description 29
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 18
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 15
- 239000010452 phosphate Substances 0.000 claims description 15
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 14
- 238000000889 atomisation Methods 0.000 claims description 12
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 11
- 239000011737 fluorine Substances 0.000 claims description 11
- 229910052731 fluorine Inorganic materials 0.000 claims description 11
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000000209 wet digestion Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 4
- 229910000272 alkali metal oxide Inorganic materials 0.000 claims description 3
- 239000007795 chemical reaction product Substances 0.000 claims description 3
- 229920000388 Polyphosphate Polymers 0.000 claims description 2
- 239000001205 polyphosphate Substances 0.000 claims description 2
- 235000011176 polyphosphates Nutrition 0.000 claims description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- 235000011007 phosphoric acid Nutrition 0.000 description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 239000000706 filtrate Substances 0.000 description 6
- 235000011121 sodium hydroxide Nutrition 0.000 description 6
- 239000012535 impurity Substances 0.000 description 4
- 239000002244 precipitate Substances 0.000 description 4
- 239000012467 final product Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 150000003016 phosphoric acids Chemical class 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- AYJRCSIUFZENHW-UHFFFAOYSA-L barium carbonate Chemical compound [Ba+2].[O-]C([O-])=O AYJRCSIUFZENHW-UHFFFAOYSA-L 0.000 description 2
- CJDPJFRMHVXWPT-UHFFFAOYSA-N barium sulfide Chemical compound [S-2].[Ba+2] CJDPJFRMHVXWPT-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001463 metal phosphate Inorganic materials 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 235000019832 sodium triphosphate Nutrition 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- BNIILDVGGAEEIG-UHFFFAOYSA-L disodium hydrogen phosphate Chemical compound [Na+].[Na+].OP([O-])([O-])=O BNIILDVGGAEEIG-UHFFFAOYSA-L 0.000 description 1
- 229910000397 disodium phosphate Inorganic materials 0.000 description 1
- 235000019800 disodium phosphate Nutrition 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- -1 iron are separated Chemical class 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 238000010915 one-step procedure Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- ABTOQLMXBSRXSM-UHFFFAOYSA-N silicon tetrafluoride Chemical compound F[Si](F)(F)F ABTOQLMXBSRXSM-UHFFFAOYSA-N 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/32—Surgical cutting instruments
- A61B17/3205—Excision instruments
- A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
- A61B17/320758—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with a rotating cutting instrument, e.g. motor driven
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
- A61B17/22031—Gripping instruments, e.g. forceps, for removing or smashing calculi
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/22—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for
- A61B2017/22072—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for with an instrument channel, e.g. for replacing one instrument by the other
- A61B2017/22074—Implements for squeezing-off ulcers or the like on inner organs of the body; Implements for scraping-out cavities of body organs, e.g. bones; for invasive removal or destruction of calculus using mechanical vibrations; for removing obstructions in blood vessels, not otherwise provided for with an instrument channel, e.g. for replacing one instrument by the other the instrument being only slidable in a channel, e.g. advancing optical fibre through a channel
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2217/00—General characteristics of surgical instruments
- A61B2217/002—Auxiliary appliance
- A61B2217/005—Auxiliary appliance with suction drainage system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2217/00—General characteristics of surgical instruments
- A61B2217/002—Auxiliary appliance
- A61B2217/007—Auxiliary appliance with irrigation system
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Veterinary Medicine (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgical Instruments (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Turning (AREA)
- Machine Tool Sensing Apparatuses (AREA)
Description
Fremgangsmåte til fremstilling .av kondenserte alkalifosfater.
Oppfinnelsen vedrører en fremgangsmåte til fremstilling av kondenserte alkalifosfater, spesielt av pyro- og tripolyfos-fater fra fosfatoppløsninger, som fremstilles på kjent måte av fosforsyre som er fremstilt ved våtoppslutning av råfosfater, renset og nøytralisert inntil det til sluttproduktene tilsvarende alkali-oksyd/P20^-forhold.
Det er allerede kjent fra de nevnte fosfatoppløs-ninger å fremstille kondenserte alkalifosfater, idet man først for-støver oppløsningen i et første trinn, og overfører det derved dannede kalsinerte produkt deretter ved lengere temperering ved forhøyet temperatur i et annet trinn til det ønskede produkt. Disse fremgangsmåter h»r den ulempe at de forløper i flere trinn og krever lange reaksjonstider, hvilket virker ugunstig på romtidsutbyttene.
Det er videre kjent å forstøve slike fosfatoppløs-ninger i ett eneste trinn i et forstøvningstårn, fosfatoppløsningen fåes ved nøytralisering av fosforsyrer som fremstilles av fosfor fremstilt på elektrotermisk måte. Slike fosforsyrer utmerker seg ved en meget stor renhet, spesielt også når det gjelder deres innhold av fluor.
I motsetning hertil har fosforsyrer som fåes i den såkalte "våtoppslutningsfremgangsmåte", dvs. ved oppslutning av råfosfater med sterke mineralsyrer, fortrinnsvis svovelsyre, et stort antall forurensninger.
Slike våtoppslutningsfremgangsmåter er f.eks. be-skrevet i U.S. patent nr. 2.95O.I7I, belgisk patent nr. 621.425» britisk patent nr. yij.& jl, de franske patenter nr.Ll8l.i5O og I.294.872 såvel som i tysk patent nr. I.O27.647.
Forurensningene må fjernes når syrene skal finne an-vendelse til fremstilling av rene fosfater. Dette foregår på kjent måte i flere trinn. Først blir, ved delvis nøytralisering av fosforsyren, det i form av silisiumfluorid foreliggende fluor, og deretter sulfatet og arsen enten utfelt ved tilsetning av BaS eller en blanding av BaS og BaCO^, derpå utskilles ved forutgående nøytralisering av fosforsyren, forurensningene av metallene som jern, aluminium, krom og vanadium. Rensningsfremgangsmåter av denne type er omtalt i for-skjellige patenter som f.eks. U.S. patenter nr. 2.044*940» 2.O8I.35I» 2.I74.I58, 2.883.266, i fransk patent nr.1.334.533 såvel som i tysk patent nr. 72I.4IO.
Fosfatoppløsninger dannet ved slike fremgangsmåter inneholder, på tross av den forutgående rensning, ennå betraktelige fluormengder. De ble, av denne grunn, tidligere ikke anvendt i en ettbunnsforstøvnings-tørkningsprosess, når det var ønskelig med stor renhet av sluttprodukter, f.eks. ved fremstilling av kondenserte alkalifosfater, som f.eks. natriumtripolyfosfat for vaskemiddelindu-strien. Det er riktignok allerede foreslått å danne ortofosfater fra nøytralisert, våt fosforsyre i et forstøvningstårn, imidlertid er det ikke sagt noe om reaksjonsbetingelsene og unngåelse av de for-styrrende fluorforbindelser. Det er heller for å unngå disse fluor-forurensninger fra fosfatoppløsningene av våt fosforsyre foreslått meget omstendeligere måter eksempelvis å føre varme forbrennings-gasser og samtidig vanndamp gjennom oppløsningene. Imidlertid er denne arbeidsmåte omstendelig, og tidsberøvende og fører bare til en helt utilstrekkelig og forholdsvis minimal avfluoriseringseffekt.
Kondenserte fosfater som fremstilles i ett-trinns-forstøvnings-tørkeprosesser fra de nevnte oppløsninger under over-holdelse av bestemte driftsbetingelser, f.eks. ifølge DAS 1.097*421, har et betraktelig lavere fluorinnhold enn utgangsoppløsningene. Den følgende tabell viser fluoridinnholdet i ppm og beregnet på PgOpj av fosfater, og hver gang like oppløsninger men med forskjellig fluorinnhold, idet oppløsningen i et tilfelle er inndampet og i et annet er forstøvet ifølge en ett-trinnsfremgangsmåte:
Oppfinnelsen vedrører altså en fremgangsmåte til fremstilling av kondenserte alkalifosfater, spesielt pyro- og polyfosfater fra fosfatoppløsninger som i en entrinns fremgangsmåte for-støves i et forstøvningstårn, idet temperaturene i forstøvnings-tårnet velges således at avgassens temperatur ligger over 300°C > fortrinnsvis mellom 340 og 420°C og videre opprettholdes i for-støvningstårnets avgass et fuktighetsinnhold fra 150 til 400 g vann pr. kg avgass, og fremgangsmåten er karakterisert ved at det anvendes fosfatoppløsninger som er fremstilt av ved våtoppslutning av råfosfater utvunnet, renset og inntil til sluttproduktene tilsvarende alkalioksyd/PgO^-forhold nøytralisert fosforsyre og har innhold av fluor på 100 - 5000 ppm, spesielt 300 - 45OO ppm, referert til
Fordelen ved den nye fremgangsmåte i forhold til de kjente arbeidsmåter består i at det fra fosfatoppløsninger som har et relativt høyt fluorinnhold i en ett-trinnsforstøvningsfremgangs-måte, kan fremstilles rene kondenserte fosfater med gunstige romtids-utbytter.
Oppfinnelsen skal i det følgende forklares nærmere ved hjelp av noen ikke begrensende eksempler.
Eksempel 1.
100 kg våt fosforsyre, fremstilt ved omsetning av kalsinert marokkofosfat med svovelsyre, ble blandet med 12 kg 50^-ig natronlut og 4i5 kS teknisk bariumsulfid, utfellingen adskilt ved hjelp av en filterpresse, og filtratet nøytralisert med 60 kg 50%-ig natronlut til trinnet for dinatriumfosfat. Det ble filtrert fra de
derved utfelte metallfosfater. Filtratet av følgende innhold av PpOc og forurensninger nemlig i form av deres ioner:
Av denne oppløsning med et faststoffinnhold på 45 vektprosent ble l80 1 forstøvet med 60 kg vanndamp pr. time i et forstøvningstårn, ifølge den fremgangsmåte som er angitt i tysk patent nr.1.018.394* Tårnet ble da oppvarmet med 40 m^ lysgass og 200 m<J> luft pr. time. Fra forstøvningstårnet ble det pr. time ført bort 65O m^ avgass med en temperatur på 385°C. Som sluttprodukt ble det pr. time dannet 91 kg Na5*>3^10 med et innn°ld av fluor på 10 ppm. Eksempel 2.
100 kg våt fosforsyre, fremstilt ved omsetning av ukalsinert floridafosfat med svovelsyre, ble blandet med 8 kg 50%-ig natronlut, 3 kg natriumsulfid og 313 kS bariumkarbonat. Etter å ha adskilt utfellingen, ble det til oppløsningen satt 60 kg 50%-ig natronlut. Det dannede filtrat har etter frafiltrering av fosfatutfellingen følgende sammensetning av PpOc og forurensninger:
Av dette filtrat med et faststoffinnhold på 57 vektprosent, ble l80 1 forstøvet med 60 kg vanndamp pr. time i et for-støvningstårn, ifølge den fremgangsmåte som er angitt i tysk patent nr. 1.018.394* Herved ble tårnet oppvarmet pr. time med j6 m^ lysgass og l80 m^ luft. Fra forstøvningstårnet ble det pr. time bortført 500 m avgass med en temperatur på 415°C Som sluttprodukt ble det pr. time dannet et 123 kg ^a5^3^10 mec* et innn°ld av fluor på 25 ppm.
Eksempel 3*
100 kg våt fosforsyre, fremstilt ved reaksjon av kolafosfat med svovelsyre, ble omsatt med 16 kg 50%-ig natronlut og
4 kg bariumsulfid, og utfellingen adskilt ved hjelp av en filterpresse. Filtratet Ile nøytralisert med 60 kg 50%-ig natronlut, og de derved utfelte metallfosfater fra-filtrert. Den derved dannede oppløsning har med hensyn til P20^°g forurensninger følgende sammensetning:
Av dette filtrat med et faststoffinnhold på 50 vektprosent, ble l80 1 forstøvet med 450 m^ pressluft pr. time, idet for-støvningstårnet ble oppvarmet med 40 m^ lysgass og 200 m^ luft. Fra tårnet ble det pr. time ført bort 85O m^ avgass, med en temperatur på 400°C. Som sluttprodukt ble det pr. time dannet 108 kg Na^PgO^ med et innhold av fluor på 18 ppm.
Claims (3)
1. Fremgangsmåte til fremstilling av kondenserte alkalifosfater, spesielt pyro- og polyfosfater fra fosfatoppløsninger som i en entrinns fremgangsmåte forstøves i et forstøvningstårn, idet temperaturene i forstøvningstårnet velges således at avgassens temperatur ligger over 300°C, fortrinnsvis mellom 340 og 420°C og videre opprettholdes i forstøvningstårnets avgass et fuktighetsinnhold fra 150 til 400 g vann pr. kg avgass, karakterisert ved at det anvendes fosfatoppløsninger som er fremstilt av ved våtoppslutning av råfosfater utvunnet, renset og inntil til sluttproduktene tilsvarende alkalioksyd/PgO^-forhold nøytralisert fosforsyre og har innhold av f^uor på 100 - 5000 ppm, spesielt 300 - 45OO ppm, referert til PgO^.
2. Fremgangsmåte ifølge krav 1,karakterisert ved at det i forstøvningstårnets avgass opprettholdes et fuktighetsinnhold fra 200 til 300 g vann pr. kg avgass.
3. Fremgangsmåte ifølge krav 1,karakterisert ved at utgangsoppløsningens faststoffinnhold utgjør mellom 40 og 70 vektprosent, fortrinnsvis ca. 50 vektprosent.
Anførte publikasjoner: Tysk utL. skrift nr. 1.097.421
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/345,656 US4445509A (en) | 1982-02-04 | 1982-02-04 | Method and apparatus for removal of enclosed abnormal deposits |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO830373L NO830373L (no) | 1983-08-05 |
| NO158778B true NO158778B (no) | 1988-07-25 |
| NO158778C NO158778C (no) | 1988-11-02 |
Family
ID=23355926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO830373A NO158778C (no) | 1982-02-04 | 1983-02-03 | Roterende skjaereredskap for fjerning av intraarterielle avleiringer. |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4445509A (no) |
| EP (1) | EP0086048B1 (no) |
| JP (1) | JPS58146342A (no) |
| AR (1) | AR230373A1 (no) |
| AT (1) | ATE35897T1 (no) |
| AU (1) | AU567287B2 (no) |
| BR (1) | BR8300499A (no) |
| CA (1) | CA1196829A (no) |
| DE (1) | DE3377460D1 (no) |
| DK (1) | DK44583A (no) |
| ES (3) | ES519506A0 (no) |
| MX (1) | MX152553A (no) |
| NO (1) | NO158778C (no) |
| ZA (1) | ZA83301B (no) |
Families Citing this family (509)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4631052A (en) * | 1984-01-03 | 1986-12-23 | Intravascular Surgical Instruments, Inc. | Method and apparatus for surgically removing remote deposits |
| US4589412A (en) * | 1984-01-03 | 1986-05-20 | Intravascular Surgical Instruments, Inc. | Method and apparatus for surgically removing remote deposits |
| US4819634A (en) * | 1984-05-14 | 1989-04-11 | Surgical Systems & Instruments | Rotary-catheter for atherectomy system |
| US4842579B1 (en) * | 1984-05-14 | 1995-10-31 | Surgical Systems & Instr Inc | Atherectomy device |
| US4754755A (en) * | 1984-05-14 | 1988-07-05 | Husted Royce Hill | Catheter with a rotary blade |
| US5041082A (en) * | 1986-06-16 | 1991-08-20 | Samuel Shiber | Mechanical atherectomy system and method |
| US4883458A (en) * | 1987-02-24 | 1989-11-28 | Surgical Systems & Instruments, Inc. | Atherectomy system and method of using the same |
| US4732154A (en) * | 1984-05-14 | 1988-03-22 | Surgical Systems & Instruments, Inc. | Rotary catheter system |
| US5443443A (en) * | 1984-05-14 | 1995-08-22 | Surgical Systems & Instruments, Inc. | Atherectomy system |
| US4886490A (en) * | 1984-05-14 | 1989-12-12 | Surgical Systems & Instruments, Inc. | Atherectomy catheter system and method of using the same |
| US5306244A (en) * | 1984-05-14 | 1994-04-26 | Surgical Systems & Instruments, Inc. | Method of guidewire insertion |
| US5007896A (en) * | 1988-12-19 | 1991-04-16 | Surgical Systems & Instruments, Inc. | Rotary-catheter for atherectomy |
| US4979951A (en) * | 1984-05-30 | 1990-12-25 | Simpson John B | Atherectomy device and method |
| EP0163502B1 (en) * | 1984-05-30 | 1990-07-18 | Devices For Vascular Intervention Inc. | Atherectomy device |
| US4591355A (en) * | 1984-06-27 | 1986-05-27 | Advanced Technology Laboratories, Inc. | Close clearance seal for rotatable therapeutic catheters |
| US4679557A (en) * | 1984-09-10 | 1987-07-14 | E. R. Squibb & Sons, Inc. | Electrodynamic transluminal angioplasty system |
| US4646736A (en) * | 1984-09-10 | 1987-03-03 | E. R. Squibb & Sons, Inc. | Transluminal thrombectomy apparatus |
| CA1266597C (en) * | 1984-09-10 | 1990-03-13 | TRANSLUMINAL THROMBECTOMY DEVICE | |
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1983
- 1983-01-13 CA CA000419399A patent/CA1196829A/en not_active Expired
- 1983-01-13 AU AU10339/83A patent/AU567287B2/en not_active Ceased
- 1983-01-17 ZA ZA83301A patent/ZA83301B/xx unknown
- 1983-01-20 AT AT83300293T patent/ATE35897T1/de not_active IP Right Cessation
- 1983-01-20 DE DE8383300293T patent/DE3377460D1/de not_active Expired
- 1983-01-20 EP EP83300293A patent/EP0086048B1/en not_active Expired
- 1983-02-02 BR BR8300499A patent/BR8300499A/pt unknown
- 1983-02-02 AR AR292014A patent/AR230373A1/es active
- 1983-02-03 NO NO830373A patent/NO158778C/no unknown
- 1983-02-03 MX MX196137A patent/MX152553A/es unknown
- 1983-02-03 DK DK44583A patent/DK44583A/da not_active Application Discontinuation
- 1983-02-03 ES ES519506A patent/ES519506A0/es active Granted
- 1983-02-04 JP JP58018019A patent/JPS58146342A/ja active Granted
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1984
- 1984-04-10 ES ES531455A patent/ES531455A0/es active Granted
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| AU567287B2 (en) | 1987-11-19 |
| ZA83301B (en) | 1983-10-26 |
| NO830373L (no) | 1983-08-05 |
| EP0086048B1 (en) | 1988-07-27 |
| DK44583A (da) | 1983-08-05 |
| EP0086048A3 (en) | 1985-04-10 |
| JPS58146342A (ja) | 1983-08-31 |
| ATE35897T1 (de) | 1988-08-15 |
| CA1196829A (en) | 1985-11-19 |
| ES8503497A1 (es) | 1985-03-16 |
| BR8300499A (pt) | 1983-11-01 |
| US4445509A (en) | 1984-05-01 |
| DK44583D0 (da) | 1983-02-03 |
| MX152553A (es) | 1985-08-23 |
| ES8406867A1 (es) | 1984-08-16 |
| EP0086048A2 (en) | 1983-08-17 |
| DE3377460D1 (en) | 1988-09-01 |
| ES531456A0 (es) | 1985-03-16 |
| AU1033983A (en) | 1983-08-11 |
| NO158778C (no) | 1988-11-02 |
| ES519506A0 (es) | 1984-08-16 |
| ES8503498A1 (es) | 1985-03-16 |
| JPH0364128B2 (no) | 1991-10-04 |
| ES531455A0 (es) | 1985-03-16 |
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