FI96824B - Magnetostriktiivinen muutin ja ultraääniresonanssivärähtelijä - Google Patents
Magnetostriktiivinen muutin ja ultraääniresonanssivärähtelijä Download PDFInfo
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- FI96824B FI96824B FI896088A FI896088A FI96824B FI 96824 B FI96824 B FI 96824B FI 896088 A FI896088 A FI 896088A FI 896088 A FI896088 A FI 896088A FI 96824 B FI96824 B FI 96824B
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- 239000000463 material Substances 0.000 claims abstract description 8
- 238000001816 cooling Methods 0.000 claims description 11
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- 238000005859 coupling reaction Methods 0.000 claims 1
- 229920001187 thermosetting polymer Polymers 0.000 claims 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 4
- 238000005219 brazing Methods 0.000 description 3
- 238000013021 overheating Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
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- 238000003475 lamination Methods 0.000 description 2
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- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/00736—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments
- A61F9/00745—Instruments for removal of intra-ocular material or intra-ocular injection, e.g. cataract instruments using mechanical vibrations, e.g. ultrasonic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/08—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with magnetostriction
- B06B1/085—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with magnetostriction using multiple elements, e.g. arrays
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N35/00—Magnetostrictive devices
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- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Public Health (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Electrophonic Musical Instruments (AREA)
- Paper (AREA)
- Non-Reversible Transmitting Devices (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Thermistors And Varistors (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
96824
Magnetostriktiivinen muutin ja ultraääniresonanssivärähtelijä Tämä keksintö kohdistuu magnetostriktiiviseen muut-5 timeen, jossa on magnetostriktiivista materiaalia oleva olennaisesti jäykkä pylväs, jossa on keskiakseli, ja joka muodostaa säteittäisesti mainitun akselin suhteen ulottuvia jäähdytysripoja, ja ultraääniresonanssivärähtelijään, joka käsittää ultraäänivärähtelijämuuttimen, liitososan, 10 jonka proksimaalinen pää on kiinnitetty muuttimen distaa-liseen päähän, ja kirurgin työkalun, jonka proksimaalinen pää on kiinnitetty liitososan distaaliseen päähän.
Ultraääniresonanssivärähteli jän sisältävät laitteet ovat tunnettuja kirurgisen käytön alueella, erityisesti 15 kirurgin käsityökaluja varten, jotka käsittävät työkaluja kudoksen rikkomiseksi. Tällaisessa laitteessa vaaditut ultraäänivärähtelyt voidaan tuottaa magnetostriktiokei-noin, jotka siirretään edelleen liitoselimen kautta sopivaan työkaluun.
20 Edustava esimerkki tällaisesta laitteesta on esi tetty US-patentissa 4 223 676, jonka selitys sisällytetään tähän viittaamalla. Patentissa 4 223 676 ehdotetussa laitteessa magnetostriktiivinen muutin on magnetostriktiole-vypaketti, joka muodostuu nikkeliseosta olevasta kerros-25 levystä, kuten on esitetty US-patentissa RE 25 033. Mai- • nittu levypaketti käsittää useita magnetostriktiomateriaa- lia olevia pitkänomaisia kaistaleita, so. nikkeliseosta, muodostaen kerrostetun rakenteen. Laminoinnit ovat välttämättömät haittavaikutusten esim. energiahäviön pienentämi-30 seksi pyörrevirroista.
Myöhemmässä parannetussa rakenteessa laminoitu levypaketti oli muodostettu matalaksi kaarevaksi profiiliksi jäykkyyden lisäämiseksi.
Oikeaa toimintaa varten laminoidun muuttimen edul-35 lisesti: 96824 2 1. tulisi olla mekaanisesti jäykkä; 2. tulisi omata minimaaliset akustiset häviöt; ja 3. tulisi olla suhteellisen helppo kuljettaa pois toimintaympäristöstään.
5 Edellä kuvattu muutin on osoittautunut olevan te hokas ja erittäin käyttökelpoinen sen käytössä kirurgisissa työnsuoritusmenetelmissä. Kuitenkin huolimatta sen hyvistä suorituksista siinä yhä on tiettyjä haittoja. Esimerkiksi litteä laminoitu rakenne pyrkii ylikuumenemaan, 10 jos jäähdytysaineen virta pienenee jostain syystä, ja tällainen ylikuumeneminen voi johtaa laitteen vakavaan vaurioitumiseen. Myös litteä rakenne antaa mekaanista jäykkyyttä vain yhdessä tasossa. Tämä yleisen jäykkyyden puute voi johtaa mekaaniseen vaurioitumiseen väärän käsittelyn 15 johdosta, ja jos laminoinnit joutuvat erilleen tai taipuvat, koko laite voi tulla käyttökelvottomaksi.
Nyt on huomattu, että edellä mainitut epäkohdat voitetaan, jos muutin tehdään olennaisesti jäykän pylvään muotoon, joka käsittää pitkänomaisia kaistaleita sovitet-20 tuina säteittäisesti ulottuvien jäähdytysripojen muotoon.
Keksinnön mukaan on muodostettu magnetostriktiivi-nen muutin, jolle on tunnusomaista, että magnetostriktio-materiaali on useiden pitkänomaisten kaistaleiden muodossa, jolloin jokaisessa kaistaleessa on proksimaalinen pää 25 ja distaalinen pää ja jokainen kaistale on kiinnitetty ‘ viereiseen kaistaleeseen molemmista päistä pylvään muo dostamiseksi, ja että pitkänomaisista kaistaleista jokaisella on olennaisesti V-muotoinen poikkileikkaus ja V:n kumpikin haara on muodostettu kaistaleen pituussuuntaisel-30 la osuudella.
Edullisesti jokaisen kaistaleen päiden kiinnitys jokaisen viereisen kaistaleen päihin on tehty kovajuottamalla tai hitsaamalla.
Keksinnön erittäin edullinen sovellutusmuoto on 35 edellä kuvatun tapainen muutin, jossa jokaisen V-muotoisen 3 96824 kaistaleen molemmat haarat ovat koskettavassa kytkennässä välittömästi viereisen kaistaleen haaran kanssa kaistaleen koko pituussuuntaista osuutta pitkin säteittäisesti ulottuvan jäähdytysrivan muodostamiseksi, ja tuloksena olevat 5 jäähdytysrivat muodostavat säteittäisen mallin keskireiän ympärillä ulottuen jäljellä olevan olennaisesti jäykän pylvään pituudelle.
Keksintö muodostaa myös ultraääniresonanssivärähte-lijän, joka käsittää ultraäänivärähtelijämuuttimen, kirur-10 gin työkalun ja liitososan, joka yhdistää mainitun muutti-men mainittuun työkaluun, jolloin mainittu muutin on edellä kuvatun mukainen magnetostriktiivinen muutin.
Edullisesti mainitussa magnetostriktiivisessa muut-timessa on keskireikä, joka ulottuu sen pituussuunnassa, 15 ja mainitulla reiällä on halkaisija, joka on riittävän suuri mahduttamaan sisäänsä kuljetusnestettä varten olevan tuubin.
Päinvastoin kuin aikaisemman lajin tavanomainen laminoitu levypaketti esillä olevan keksinnön muutin on 20 olennaisesti jäykän pylvään muodossa, edullisesti poikkileikkaukseltaan olennaisesti ympyrämäinen, jonka keskiak-seli ja jäähdytysrivat ulottuvat säteittäisesti mainitun akselin suhteen. Mainitut jäähdytysrivat on muodostettu magnetostriktiomateriaalin pitkänomaisilla kaistaleilla, 25 esimerkiksi nikkeliseoksesta, jossa on sopiva oksidipääl-lyste, kiinnitettynä toisiinsa distaalisista ja proksi-maalisista päistään, edullisesti kovajuottamalla tai hitsaamalla. Edullisessa sovellutuksessa jokainen pitkänomainen kaistale on olennaisesti V-muotoinen poikkileikkauk-30 seitaan ja mainittu pylväs on muodostettu suuntaamalla jokainen kaistale niin, että sen haaroista toinen on koskettavassa kytkennässä välittömästi viereisen kaistaleen haaran kanssa koko pituussuuntaiselta osaltaan, niin että koskettavat kaistaleet muodostavat jäähdytysripojen sä-35 teittäisen mallin keskireiän ympärille ulottuen pylvään 4 96824 koko pituudelle. Tuloksena oleva rakenne on olennaisesti jäykkä pylväs, joka on jäykempi kuin aikaisemman lajin laminoitu levypaketti ja lisäksi jäähdytysripajärjestely muodostaa useita vapaita pintoja, jotka helpottavat sätei-5 lemällä tapahtuvaa lämmön häviämistä ja sen vuoksi pienentävät ylikuumenemisen mahdollisuutta, jos normaalit jäähdytyslaitteet menisivät epäkuntoon.
Vaikka V-muotoinen poikkileikkaus on erityisen sopiva pituussuuntaisille kaistaleille, voidaan käyttää mitä 10 tahansa muutakin sopivaa poikkileikkausta. V-muoto on erityisen sopiva yksittäisten kaistaleiden valmistuksen helppouden takia ja useita tällaisia kaistaleita käyttävän pylväsmuodon rakenteen yksinkertaisuuden takia. Riippuen käytettyjen kaistaleiden määrästä ja pakkauksen tiiviy-15 destä muodostetulla pylväällä, kun kaistaleet on kiinnitetty toisiinsa päistään, on tavallisesti keskireikä ulottuen pylvään koko pituudelle, ja jos halutaan, mainitun reiän halkaisija voi olla tehty riittävän suureksi mahduttamaan tuubin imunesteen ja kastelunesteen kuljettamisek-20 si.
Keksinnön mukainen muutin on erityisen sopiva käy tettäväksi alussa mainitussa ultraääniresonanssivärähteli-jässä. Kirurgin työkalun muoto ja massa on sellainen, että saadaan lisää vahvistusta, mikä tekee työkalusta sopivan 25 esimerkiksi kudoksen rikkomiseen. Tyypillinen kirurgin käsityökalu on esitetty US-patentissa 4 223 676.
Keksintöä selostetaan tarkemmin viittaamalla aikaisemman lajin muuttimeen ja esillä olevan keksinnön edulliseen sovellutusmuotoon, jotka on kuvattu oheisissa pii-30 rustuksissa, joissa kuvio 1 on sivuleikkaus aikaisemman lajin laminoi-dusta levypaketista; kuvio 2 on poikkileikkaus kuvion 2 viivaa 2-2 pitkin; R RH I nti I i i s* 5 96824 kuvio 3 on suurennettu poikkileikkaus aikaisemman lajin levypaketin yhdestä kaistaleesta; kuvio 4 on sivuleikkaus jäähdytysrivoilla varustetusta esillä olevan keksinnön mukaisesta muuttimesta; 5 kuvio 5 on poikkileikkaus kuvion 4 viivaa 5-5 pitkin; kuvio 6 on suurennettu poikkileikkaus kuvion 4 muuttimessa käytetystä V-muotoisesta pitkänomaisesta kaistaleesta; ja 10 kuvio 7 on sivuleikkaus keksinnön muuttimen sisäl tävästä ultraääniresonanssivärähtelij ästä.
Nyt viitataan piirustusten kuvioihin 1-3, joissa tyypillinen aikaisemman lajin laminoitu levypaketti 10 käsittää useita olennaisesti litteitä kaistaleita 11 pi-15 nottuina rinnakkain ja kiinnitettyinä päistään liitoskap-paleisiin 12, 13. Kuten on esitetty kuviossa 2 matala kaareva profiili voidaan painaa muutoin litteisiin kaistaleisiin parantamaan levypaketin jäykkyyttä. Laminoitu muutin on sovitettu yhdistettäväksi sopivaan liitososaan so-20 pivalla kierteitetyllä liittimellä 14 tai muulla sopivalla kiinnityslaitteella.
Keksinnön edullinen sovellutusmuoto on esitetty kuvioissa 4-6. Tämä sovellutus käsittää pylvään 30, joka on muodostettu useista esimerkiksi 16:sta 30:een, edulli-25 sesti 18 pitkänomaisesta magnetostriktiomateriaalia olevasta kaistaleesta, joista jokaisella on olennaisesti V-muotoinen poikkileikkaus. Magnetostriktiomateriaali on edullisesti nikkeliseos varustettuna oksidipäällysteellä.
Jokaisen V:n kumpikin haara 31 on koskettavassa 30 kytkennässä V-muotoisen viereisen kaistaleen haaran kanssa. Tyypillisesti mainittujen haarojen välinen välitila 32 on määritelty kulmalla a, joka on edullisesti 11 - 21°. Jokaisen pitkänomaisen kaistaleen pituus on määrätty mag-netostriktiolähteessä käytetyn virran aallonpituudella. 35 Täten muuttimen pituuden tulee olla yhtä suuri kuin aal- 6 96824 lonpituuden puolikkaiden kokonaislukumäärä, niin että sen keskus sijaitsee keskuskohdassa. Resonanssi värähtelijälle, joka toimii noin 22 - 27 KHz taajuudella, muuttimen pituus ja täten jokaisen kaistaleen pituus, joista se koostuu, 5 tulee olemaan noin 10 cm. Jokaisen kaistaleen paksuus on noin 0,018 - 0,025 cm.
Pitkänomaiset kaistaleet on kiinnitetty toisiinsa niiden proksimaalisesta päästä 33 ja distaalisesta päästä 34. Kiinnitys on tehty edullisesti kovajuottamalla tai 10 hitsaamalla. Vaikka kiinnitys on kuvattu kaavamaisesti kiinteänä kappaleena jokaisessa päässä, kiinnitys voi olla joko kiinteä kappale, kuten on esitetty, tai avoin rakenne, joka on muodostettu jokaisen viereisen kaistaleen pään välissä olevalla sidoksella, edellyttäen että tuloksena 15 olevalla pylväällä on haluttu jäykkyys ja taipumattomuus.
Kiinnitettynä pylvään distaaliseen päähän on sopiva liitin 35 muuttimen liittämiseksi muihin käytettyihin elimiin, esimerkiksi liitososaan, johon lisäksi on kiinnitetty kirurgin työkalu kuten edellä on selostettu.
20 Kuvio 7 esittää kaavamaisesti ultraääniresonanssi- värähtelijää, joka käsittää keksinnön mukaisen muuttimen 30 yhdistettynä liitososaan 37 ja kirurgin työkaluun 38.
Kuten on esitetty kuviossa 5, edullinen sovellutus voi käsittää keskireiän 36. Tämän reiän halkaisijaa voi-25 daan muuttaa laitteen muiden toimintaelimien mahduttami-- seksi, esimerkiksi imunesteen ja kastelunesteen kuljetta mista varten olevan tuubin mahduttamiseksi.
Piirustusten kuvioissa 4-6 esitetyssä sovellutuksessa on suurempi lujuus ja jäykkyys kuin missään aikai-30 semman lajin tunnetussa laminoidussa muuttimessa, ja sillä on lisäksi muoto, joka pienentää aikaisemman lajin laitteisiin liittynyttä ylikuumennusongelmaa tai täydellisesti poistaa sen. Täten testissä, jossa keksinnön mukaisen muuttimen sisältävää kirurgin käsityökalua käytettiin 5 -35 7 minuuttia jäähdyttämättä, muuttimen poistamisen yhtey-
I IK i III» IliliH
7 96824 dessä sen todettiin olevan lämmin mutta ei yhtä kuuma kuin tavanomainen levypaketti ilman jäähdyttämistä.
Lisäksi havaittiin, että keksinnön mukaisen muut-timen sisältävä käsityökalu vaati vähemmän käyttövoimaa, 5 mikä ilmaisee sen, että keksinnön muutin on tehokkaampi kuin tavanomaiset aikaisemman lajin muuttimen levypake-tit.
Claims (5)
1. Magnetostriktiivinen muutin, jossa on magneto-striktiivista materiaalia oleva olennaisesti jäykkä pylväs 5 (30), jossa on keskiakseli, ja joka muodostaa säteittäi- sesti mainitun akselin suhteen ulottuvia jäähdytysripoja, tunnettu siitä, että magnetostriktiomateriaali on useiden pitkänomaisten kaistaleiden muodossa, jolloin jokaisessa kaistaleessa on proksimaalinen pää (33) ja dis-10 taalinen pää (34) ja jokainen kaistale on kiinnitetty viereiseen kaistaleeseen molemmista päistä pylvään (30) muodostamiseksi, ja että pitkänomaisista kaistaleista jokaisella on olennaisesti V-muotoinen poikkileikkaus ja V:n kumpikin haara (31) on muodostettu kaistaleen pituussuun-15 täisellä osuudella.
2. Patenttivaatimuksen 1 mukainen muutin, tunnettu siitä, että jokaisen kaistaleen päiden kiinnitys jokaisen viereisen kaistaleen päihin on tehty kova-juottamalla tai hitsaamalla.
3. Patenttivaatimuksen 1 tai 2 mukainen muutin, tunnettu siitä, että jokaisen V-muotoisen kaistaleen kumpikin haara (31) on koskettavassa kytkennässä välittömästi viereisen kaistaleen haaran kanssa kaistaleen koko pituussuuntaista osuutta pitkin säteittäisesti ulot-25 tuvan jäähdytysrivan muodostamiseksi, ja tuloksena olevat jäähdytysrivat muodostavat säteittäisen mallin keskireiän (36) ympärille, joka ulottuu tuloksena olevan olennaisesti jäykän pylvään pituudelle.
4. UItraääniresonanssivärähtelijä, joka käsittää 30 ultraäänivärähtelijämuuttimen (30), liitososan (37), jonka proksimaalinen pää on kiinnitetty muuttimen (30) distaali-seen päähän, ja kirurgin työkalun (38), jonka proksimaalinen pää on kiinnitetty liitososan (37) distaaliseen päähän, tunnettu siitä, että mainittu muutin on pa-35 tenttivaatimuksen 1, 2 tai 3 mukainen magnetostriktiivinen muutin. 9 96824
5. Patenttivaatimuksen 4 mukainen värähtelijä, tunnettu siitä, että magnetostriktiivisessa muut-timessa (30) on keskireikä (36), joka ulottuu sen pituussuunnassa ja jonka halkaisija on riittävän suuri mahdutta-5 maan sisäänsä kuljetusnestettä varten olevan tuubin. 96824
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US28774888 | 1988-12-20 | ||
| US07/287,748 US4986808A (en) | 1988-12-20 | 1988-12-20 | Magnetostrictive transducer |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI896088A0 FI896088A0 (fi) | 1989-12-19 |
| FI96824B true FI96824B (fi) | 1996-05-31 |
| FI96824C FI96824C (fi) | 1996-09-10 |
Family
ID=23104164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI896088A FI96824C (fi) | 1988-12-20 | 1989-12-19 | Magnetostriktiivinen muutin ja ultraääniresonanssivärähtelijä |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US4986808A (fi) |
| EP (1) | EP0375302B1 (fi) |
| JP (1) | JPH0632784B2 (fi) |
| AT (1) | ATE113458T1 (fi) |
| AU (1) | AU610030B2 (fi) |
| CA (1) | CA2005878C (fi) |
| DE (1) | DE68919197T2 (fi) |
| DK (1) | DK646689A (fi) |
| ES (1) | ES2062046T3 (fi) |
| FI (1) | FI96824C (fi) |
| NO (1) | NO178015C (fi) |
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| US4978333A (en) * | 1988-12-20 | 1990-12-18 | Valleylab, Inc. | Resonator for surgical handpiece |
| US5242385A (en) * | 1991-10-08 | 1993-09-07 | Surgical Design Corporation | Ultrasonic handpiece |
| US5188589A (en) * | 1991-10-10 | 1993-02-23 | Alcon Surgical, Inc. | Textured irrigating sleeve |
| US5396266A (en) * | 1993-06-08 | 1995-03-07 | Technical Research Associates, Inc. | Kinesthetic feedback apparatus and method |
| US5458120A (en) * | 1993-12-08 | 1995-10-17 | General Electric Company | Ultrasonic transducer with magnetostrictive lens for dynamically focussing and steering a beam of ultrasound energy |
| US5381068A (en) * | 1993-12-20 | 1995-01-10 | General Electric Company | Ultrasonic transducer with selectable center frequency |
| US5984904A (en) * | 1996-08-22 | 1999-11-16 | Bausch & Lomb Surgical, Inc. | Sleeve for a surgical instrument |
| US5941887A (en) * | 1996-09-03 | 1999-08-24 | Bausch & Lomb Surgical, Inc. | Sleeve for a surgical instrument |
| US5980251A (en) * | 1997-08-05 | 1999-11-09 | Coltene/Whaledent, Inc. | Laminated magnetostrictive transducer |
| US6214017B1 (en) * | 1998-09-25 | 2001-04-10 | Sherwood Services Ag | Ultrasonic surgical apparatus |
| WO2000064358A2 (en) * | 1999-04-21 | 2000-11-02 | Michael John Radley Young | Surgical waveguide output configurations |
| US6660013B2 (en) * | 1999-10-05 | 2003-12-09 | Omnisonics Medical Technologies, Inc. | Apparatus for removing plaque from blood vessels using ultrasonic energy |
| US20040097996A1 (en) | 1999-10-05 | 2004-05-20 | Omnisonics Medical Technologies, Inc. | Apparatus and method of removing occlusions using an ultrasonic medical device operating in a transverse mode |
| US20070084897A1 (en) | 2003-05-20 | 2007-04-19 | Shelton Frederick E Iv | Articulating surgical stapling instrument incorporating a two-piece e-beam firing mechanism |
| US9060770B2 (en) | 2003-05-20 | 2015-06-23 | Ethicon Endo-Surgery, Inc. | Robotically-driven surgical instrument with E-beam driver |
| US20050187514A1 (en) * | 2004-02-09 | 2005-08-25 | Omnisonics Medical Technologies, Inc. | Apparatus and method for an ultrasonic medical device operating in a torsional mode |
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| DE855917C (de) * | 1944-10-17 | 1952-11-17 | Siemens Ag | Einrichtung zur Erzeugung von Schall- bzw. Ultraschallschwingungen mittels eines Magnetostriktionsschwingers |
| US2826396A (en) * | 1955-02-01 | 1958-03-11 | Telephonics Corp | Vibration producing apparatus |
| US3370186A (en) * | 1965-02-05 | 1968-02-20 | Blackstone Corp | Ultrasonic transducers |
| US3311352A (en) * | 1965-03-25 | 1967-03-28 | Bulova Watch Co Inc | Magnetostrictive transducers |
| US3375583A (en) * | 1966-03-10 | 1968-04-02 | C & B Inc | Ultrasonic dental tool |
| US3636947A (en) * | 1970-12-03 | 1972-01-25 | Ultrasonic Systems | Ultrasonic home dental instrument and method |
| US4425115A (en) * | 1977-12-19 | 1984-01-10 | Wuchinich David G | Ultrasonic resonant vibrator |
| US4330278A (en) * | 1980-06-30 | 1982-05-18 | Howard Martin | Endodontic flow-through ultrasonic instrument holder device |
| JPS62100151A (ja) * | 1985-10-25 | 1987-05-09 | Mitsubishi Electric Corp | 電動機用フレ−ムの製造方法 |
| US4742499A (en) * | 1986-06-13 | 1988-05-03 | Image Acoustics, Inc. | Flextensional transducer |
| US4931047A (en) * | 1987-09-30 | 1990-06-05 | Cavitron, Inc. | Method and apparatus for providing enhanced tissue fragmentation and/or hemostasis |
| US4978333A (en) * | 1988-12-20 | 1990-12-18 | Valleylab, Inc. | Resonator for surgical handpiece |
-
1988
- 1988-12-20 US US07/287,748 patent/US4986808A/en not_active Expired - Lifetime
-
1989
- 1989-12-15 DE DE68919197T patent/DE68919197T2/de not_active Expired - Fee Related
- 1989-12-15 EP EP89313169A patent/EP0375302B1/en not_active Expired - Lifetime
- 1989-12-15 ES ES89313169T patent/ES2062046T3/es not_active Expired - Lifetime
- 1989-12-15 AT AT89313169T patent/ATE113458T1/de not_active IP Right Cessation
- 1989-12-18 CA CA002005878A patent/CA2005878C/en not_active Expired - Fee Related
- 1989-12-19 JP JP1329366A patent/JPH0632784B2/ja not_active Expired - Fee Related
- 1989-12-19 AU AU47018/89A patent/AU610030B2/en not_active Ceased
- 1989-12-19 NO NO895117A patent/NO178015C/no unknown
- 1989-12-19 FI FI896088A patent/FI96824C/fi not_active IP Right Cessation
- 1989-12-19 DK DK646689A patent/DK646689A/da not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| CA2005878A1 (en) | 1990-06-20 |
| FI96824C (fi) | 1996-09-10 |
| AU4701889A (en) | 1990-07-19 |
| EP0375302A1 (en) | 1990-06-27 |
| NO178015C (no) | 1996-01-10 |
| AU610030B2 (en) | 1991-05-09 |
| DK646689D0 (da) | 1989-12-19 |
| ATE113458T1 (de) | 1994-11-15 |
| DE68919197T2 (de) | 1995-03-23 |
| ES2062046T3 (es) | 1994-12-16 |
| NO178015B (no) | 1995-10-02 |
| NO895117L (no) | 1990-06-21 |
| DE68919197D1 (de) | 1994-12-08 |
| JPH02261576A (ja) | 1990-10-24 |
| FI896088A0 (fi) | 1989-12-19 |
| DK646689A (da) | 1990-06-21 |
| NO895117D0 (no) | 1989-12-19 |
| EP0375302B1 (en) | 1994-11-02 |
| CA2005878C (en) | 1993-08-17 |
| US4986808A (en) | 1991-01-22 |
| JPH0632784B2 (ja) | 1994-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BB | Publication of examined application | ||
| MM | Patent lapsed | ||
| MM | Patent lapsed |
Owner name: VALLEYLAB, INC. |