Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO1991008706) ULTRASONIC INSTRUMENT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/008706 International Application No.: PCT/GB1990/001977
Publication Date: 27.06.1991 International Filing Date: 18.12.1990
Chapter 2 Demand Filed: 18.07.1991
IPC:
A61B 8/08 (2006.01) ,A61B 17/00 (2006.01) ,A61B 17/34 (2006.01) ,A61B 19/00 (2006.01) ,B06B 1/06 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
8
Diagnosis using ultrasonic, sonic or infrasonic waves
08
Detecting organic movements or changes, e.g. tumours, cysts, swellings
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
17
Surgical instruments, devices or methods, e.g. tourniquets
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
17
Surgical instruments, devices or methods, e.g. tourniquets
34
Trocars; Puncturing needles
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
19
Instruments, implements or accessories for surgery or diagnosis not covered by any of the groups A61B1/-A61B18/149
B PERFORMING OPERATIONS; TRANSPORTING
06
GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
B
GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
1
Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency
02
making use of electrical energy
06
operating with piezo-electric effect or with electrostriction
Applicants:
LESNY, Jan [GB/GB]; GB
AINDOW, Joseph, Douglas [GB/GB]; GB
Inventors:
LESNY, Jan; GB
AINDOW, Joseph, Douglas; GB
Agent:
LUCKHURST, Anthony, Henry, William; Marks & Clerk 57-60 Lincoln's Inn Fields London WC2A 3LS, GB
Priority Data:
613,18614.11.1990US
8928533.218.12.1989GB
Title (EN) ULTRASONIC INSTRUMENT
(FR) INSTRUMENT ULTRASONIQUE
Abstract:
(EN) An ultrasonic invasive instrument such as a biopsy needle has an ultrasonic transducer (12) mounted at one end. The transducer is electrically coupled to two conductors, such as a stylet (10) and cannula (11), to transmit signals indicating its position in an ultrasonic field transmitted by an imaging scanner. The transducer (12) is coupled to at least one of the conductors (10, 11) by an ohmic or capacitive coupling. In particular, body fluids can provide an electrical coupling between the transducer (12) and the cannula (11).
(FR) Un instrument ultrasonique du type invasif, par exemple une aiguille de biopsie, est équipé à l'une de ses extrémités d'un capteur (12). Le capteur est relié électriquement à deux conducteurs, par exemple un stylet (10) et une canule (11), pour transmettre des signaux indiquant sa position dans un champ ultrasonique transmis par un dispositif d'imagerie à balayage. Le capteur (12) est couplé à au moins un des conducteurs (10, 11) par un couplage ohmique ou capacitatif. En particulier, les liquides corporels peuvent fournir un couplage entre le coupleur (12) et la canule (11).
Designated States: AU, CA, GB, JP, SE, US
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0486269EP0506733US5383465JPH05502392JP6043242 DE000069118823
AU1991069167