Puncturing device for blood vessels
First Claim
1. A puncturing device for blood vessels comprising:
- an ultrasound probe having means for emitting an ultrasound beam;
a guide duct adapted to receive a puncturing needle, the puncturing needle having a needle axis when positioned in the guide duct; and
a sterile coupling member coupled to the probe and having a means for deflecting the ultrasound beam emitted by the probe, the deflecting means for deflecting the ultrasound beam emitted by the probe in a direction substantially coaxial to the needle axis when the puncturing needle is positioned in the guide duct.
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Accused Products
Abstract
The puncturing device for blood vessels has an ultrasound probe (20) which permits location, based on the Doppler effect, of the blood vessel (50). By means of a guide duct (13) the puncturing needle (30) can be directed at least approximately coaxially relative to the beam transmitted by the probe (20). Puncturing must be performed in a sterile manner. To this end, according to the invention, the probe is enveloped in a sterile covering, this covering having a sterile coupling member (1) in which a reflector (12) for the ultrasound beam and a needle guide duct (13) are situated. The coupling member (1) may be part of the covering; alternatively, however, it may be designed as an attachment to be placed on the covering. The sterile covering with the coupling member (1), which is intended to be used once only, eliminates the need for time-consuming, repeated gas sterilization of the puncturing device.
136 Citations
12 Claims
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1. A puncturing device for blood vessels comprising:
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an ultrasound probe having means for emitting an ultrasound beam; a guide duct adapted to receive a puncturing needle, the puncturing needle having a needle axis when positioned in the guide duct; and a sterile coupling member coupled to the probe and having a means for deflecting the ultrasound beam emitted by the probe, the deflecting means for deflecting the ultrasound beam emitted by the probe in a direction substantially coaxial to the needle axis when the puncturing needle is positioned in the guide duct. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A puncturing device for blood vessels comprising:
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an ultrasound probe having means for emitting an ultrasound beam; a guide duct adapted to receive a puncturing needle, the puncturing needle having a needle axis when positioned in the guide duct; a sterile coupling member coupled to the probe and having a reflector, the reflector being configured and positioned to receive and reflect the ultrasound beam emitted by the probe in a direction substantially coaxial to the needle axis when the puncturing needle is positioned in the guide duct, the sterile coupling member further comprising a housing including a wall having the reflector, the housing further comprising a coupling gel filling the housing, and the needle guide duct being disposed in a central area of the reflector; and a diaphragm positioned between the needle guide duct and the coupling gel.
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Specification