EP0288751B1 - Verfahren zur Herstellung einer Elektrode für die berührungsfreie Lithotripsie - Google Patents

Verfahren zur Herstellung einer Elektrode für die berührungsfreie Lithotripsie Download PDF

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Publication number
EP0288751B1
EP0288751B1 EP88104804A EP88104804A EP0288751B1 EP 0288751 B1 EP0288751 B1 EP 0288751B1 EP 88104804 A EP88104804 A EP 88104804A EP 88104804 A EP88104804 A EP 88104804A EP 0288751 B1 EP0288751 B1 EP 0288751B1
Authority
EP
European Patent Office
Prior art keywords
electrode
plastic
lithotripsy
contact
conductor
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP88104804A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0288751A3 (en
EP0288751A2 (de
Inventor
Klaus Dipl.-Ing. Pimiskern
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dornier Medizintechnik GmbH
Original Assignee
Dornier GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dornier GmbH filed Critical Dornier GmbH
Publication of EP0288751A2 publication Critical patent/EP0288751A2/de
Publication of EP0288751A3 publication Critical patent/EP0288751A3/de
Application granted granted Critical
Publication of EP0288751B1 publication Critical patent/EP0288751B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/04—Sound-producing devices
    • G10K15/06—Sound-producing devices using electric discharge
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49117—Conductor or circuit manufacturing

Definitions

  • the invention relates to a method for producing a positive connection between an inner conductor and a sleeve-shaped outer conductor of an electrode for non-contact lithotripsy.
  • the object of the invention is to connect the inner and outer conductors of an electrode for non-contact lithotripsy permanently and safely.
  • Fig. 1 shows a sectional view of an electrode, as it is used for the contact-free crushing of concrements and is described in more detail, for example, in German patents P 26 35 635 and 35 43 881.
  • the view shows a metallic (preferably made of brass) inner conductor 2, a sleeve 6 located on the jacket 4 of the inner conductor 2 made of thermoplastic material (for example polycarbonate available under the trademark "Pocan 1505 nature") and a sleeve-shaped outer conductor 8, which like the inner conductor 2 consists of conductive material, for example brass.
  • the bore 10 of the outer conductor 8 has a circumferential annular groove 12 in the exemplary embodiment. If the metal sleeve of the outer conductor 8 is heated inductively, for example by means of the induction coil 14 (at 18 to 30 kV), the plastic of the sleeve 6 expands. Due to the greater thermal expansion of the plastic compared to the metal sleeve, the gap between the inner conductor 2 and outer conductor 8 sealed and the plastic pressed into the annular groove 12. After cooling, the plastic remains in the ring groove since the expansion has gone beyond the plastic area. After cooling (and removal of the induction coil 14), the groove 12 results in a secure, form-fit connection free of axial play, between the inner conductor 2 and the outer conductor 8.
  • the inner conductor 2 forms a tip 20.
  • the metallic outer conductor 8 is connected to a second electrode tip 24 via a cage 22 formed from wires.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP88104804A 1987-04-25 1988-03-25 Verfahren zur Herstellung einer Elektrode für die berührungsfreie Lithotripsie Expired - Lifetime EP0288751B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873713884 DE3713884A1 (de) 1987-04-25 1987-04-25 Verbindung einer metallhuelse mit einer in ihrer bohrung befindlichen kunststoffhuelse
DE3713884 1987-04-25

Publications (3)

Publication Number Publication Date
EP0288751A2 EP0288751A2 (de) 1988-11-02
EP0288751A3 EP0288751A3 (en) 1989-09-27
EP0288751B1 true EP0288751B1 (de) 1994-01-05

Family

ID=6326294

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88104804A Expired - Lifetime EP0288751B1 (de) 1987-04-25 1988-03-25 Verfahren zur Herstellung einer Elektrode für die berührungsfreie Lithotripsie

Country Status (3)

Country Link
US (1) US4938781A (enrdf_load_stackoverflow)
EP (1) EP0288751B1 (enrdf_load_stackoverflow)
DE (2) DE3713884A1 (enrdf_load_stackoverflow)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3713884A1 (de) * 1987-04-25 1988-11-03 Dornier System Gmbh Verbindung einer metallhuelse mit einer in ihrer bohrung befindlichen kunststoffhuelse
DE4016054A1 (de) * 1990-05-18 1991-11-21 Dornier Medizintechnik Funkenstrecke fuer die lithotripsie
ES2097848T3 (es) * 1992-09-28 1997-04-16 Hmt Ag Aparato para la generacion de ondas de choque para la destruccion sin contacto de concreciones en cuerpos de organismos.
US5420473A (en) * 1993-10-12 1995-05-30 Thomas; Howard C. Spark gap electrode assembly for lithotripters
DE19718512C1 (de) * 1997-05-02 1998-06-25 Hmt Ag Verfahren und Vorrichtung zum Erzeugen von Stoßwellen für medizinische Anwendungen
ATE362163T1 (de) 1997-10-24 2007-06-15 Mts Europ Gmbh Methode zur automatischen einstellung des elektrodenabstandes einer funkenstrecke bei elektrohydraulischen stosswellensystemen
DE19755985A1 (de) * 1997-12-17 1999-07-01 Rohwedder Gmbh U Co Kg Praezis Einbetten von Metallelementen in Kunststoff

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1140247B (de) * 1960-07-08 1962-11-29 Siemens Ag Abschlusskopf fuer Isolierrohre fuer Hochspannungsgeraete, z. B. Kabelendverschluesse
DE1291109B (de) * 1964-07-14 1969-03-20 Tecalemit Gmbh Deutsche Verfahren zum Verschweissen von Kunststoffrohren und nach dem Verfahren ausgebildete Schweissverbindung
US3798094A (en) * 1972-01-27 1974-03-19 A Costa Method of securing a closure member to a plastic container
FR2268614A1 (en) * 1974-04-25 1975-11-21 Coflexip Metal armoured plastic pipes - for use as hoses under external hydrostatic pressure e.g. underwater oil prodn pipes
DE2635635C3 (de) * 1976-08-07 1979-05-31 Dornier System Gmbh, 7990 Friedrichshafen Funkenstrecke zur Erzeugung von Stoßwellen für die berührungsfreie Zerstörung von Konkrementen in Körpern von Lebewesen
GB2093139A (en) * 1981-02-18 1982-08-25 Jenkins Robert & Co Ltd Electrically insulating pipe joint
DE3543881C1 (de) * 1985-12-12 1987-03-26 Dornier Medizintechnik Unterwasser-Elektrode fuer die beruehrungsfreie Lithotripsie
DE8619055U1 (de) * 1986-07-16 1986-11-20 Richard Wolf Gmbh, 7134 Knittlingen Lithotripsie-Sonde
DE3713884A1 (de) * 1987-04-25 1988-11-03 Dornier System Gmbh Verbindung einer metallhuelse mit einer in ihrer bohrung befindlichen kunststoffhuelse

Also Published As

Publication number Publication date
EP0288751A3 (en) 1989-09-27
US4938781A (en) 1990-07-03
DE3713884A1 (de) 1988-11-03
DE3886806D1 (de) 1994-02-17
DE3713884C2 (enrdf_load_stackoverflow) 1989-07-13
EP0288751A2 (de) 1988-11-02

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