Urteil Nr. X ZR 77/19 des X. Zivilsenat des Bundesgerichtshofs, 07-09-2021
| ECLI | ECLI:DE:BGH:2021:070921UXZR77.19.0 |
| Date | 07 Septiembre 2021 |
| Docket Number | X ZR 77/19 |
| Court | X. Zivilsenat |
ECLI:DE:BGH:2021:070921UXZR77.19.0
BUNDESGERICHTSHOF
IM NAMEN DES VOLKES
URTEIL
X ZR 77/19 Verkündet am:
7. September 2021
Schönthal
Justizangestellte
als Urkundsbeamtin
der Geschäftsstelle
in der Patentnichtigkeitssache
- 2 -
Der X. Zivilsenat des Bundesgerichtshofs hat auf die mündliche Verhandlung
vom 7. September 2021 durch den Vorsitzenden Richter Dr. Bacher, die Richter
Dr. Grabinski und Hoffmann sowie die Richterinnen Dr. Kober-Dehm und
Dr. Marx
für Recht erkannt:
Auf die Berufung der Beklagten wird das Urteil des 4. Senats (Nich-
tigkeitssenats) des Bundespatentgerichts vom 12. März 2019 unter
Zurückweisung des weitergehenden Rechtsmittels abgeändert.
Das europäische Patent 2 620 119 wird mit Wirkung für die Bun-
desrepublik Deutschland für nichtig erklärt, soweit sein Gegenstand
über die folgende Fassung der Patentansprüche hinausgeht:
1. A device for endoluminal treatment of venous insufficiencies by
applying radiation to the vein wall for occluding the vein during
a pull-back-motion of the device comprising: a flexible wave-
guide (100, 200, 500, 600, 800, 900) defining an elongated axis,
a proximal end optically connectable to a source of radiation
(424), and a rounded distal end receivable within the blood ves-
sel and including a radiation emitting surface (110, 210, 510,
610) that emits radiation from the radiation source (424) later-
ally with respect to the elongated axis of the waveguide (100,
200, 500, 600, 800, 900) and annularly from the waveguide
(100, 200, 500, 600, 800, 900) onto an angularly extending por-
tion of the surrounding vessel wall, wherein the emitting surface
(110, 210, 510, 610) is oriented at an acute angle with respect
to the elongated axis of the waveguide (100, 200, 500, 600, 800,
900) and wherein the emitting surface (110, 210, 510, 610) is
substantially conical shaped, the device further comprising
- a cover (106, 206, 506, 606, 906) that is fixedly secured to
the waveguide (100, 200, 500, 600, 800, 900) and sealed
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with respect thereto, substantially transparent with respect
to the emitted radiation, that encloses the emitting surface
(110, 210, 510, 610) therein, and that defines a gas-wave-
guide interface that refracts emitted radiation laterally with
respect to the elongated axis of the waveguide (100, 200,
500, 600, 800, 900) onto the surrounding vessel wall
- at least one laser source (424) that provides laser radiation
of 1470 nm +/-30 nm or 1950 nm +/- 30 nm, wherein the
proximal end of the waveguide (100, 200, 500, 600, 800,
900) is optically coupled to the at least one laser source
(424).
2. The device according to claim 1, further comprising a reflecting
surface (112, 212, 512, 612) distally spaced relative to and fac-
ing the emitting surface (110, 210, 510, 610) for reflecting for-
wardly directed radiation laterally with respect to the elongated
axis of the waveguide (100, 200, 500, 600, 900).
3. The device according to claim 2, wherein the reflecting surface
(112, 212, 512, 612) defines an arcuate surface contour ori-
ented at an acute angle with respect to the elongated axis of
the waveguide (100, 200, 500, 600, 900).
4. The device according to claim 3, wherein the reflecting surface
(112, 212, 512, 612) is substantially conical shaped.
5. The device according to any one of claims 1 to 4, wherein the
spread of the annular beam is defined by an angle within the
range of about 30° to about 40° and/or wherein the approximate
center of the beam is preferably oriented at an angle within the
range of about 70° to about 90° relative to the elongated axis of
the waveguide (100, 200, 500, 600, 800, 900).
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