Echogenic needle aspiration device
First Claim
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1. An echogenic needle aspiration device comprising:
- (a) a first catheter, the first catheter having a proximal end, a distal end and a lumen, the lumen of the first flexible catheter being adapted to receive suction; and
(b) a needle, the needle comprising a proximal end, a distal end and a tubular sidewall, the tubular sidewall defining a lumen and having a length, the proximal end of the needle being fixedly coupled to the distal end of the first catheter, with the lumina of the first flexible catheter and the needle in fluid communication with one another, the tubular sidewall comprising a non-circular transverse cross-section over at least a portion of the length of the tubular sidewall.
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Abstract
An echogenic needle aspiration device. In one embodiment, the device includes an echogenic needle, the needle including a tubular sidewall having a non-circular transverse cross-section over at least a portion of its length. The non-circular cross-sectional shape of the needle may be provided, for example, by radially spacing one or more straight, longitudinally-extending fins, ribs or other projections about the periphery of the needle and/or by providing the needle with a polygonal cross-sectional shape.
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Citations
26 Claims
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1. An echogenic needle aspiration device comprising:
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(a) a first catheter, the first catheter having a proximal end, a distal end and a lumen, the lumen of the first flexible catheter being adapted to receive suction; and (b) a needle, the needle comprising a proximal end, a distal end and a tubular sidewall, the tubular sidewall defining a lumen and having a length, the proximal end of the needle being fixedly coupled to the distal end of the first catheter, with the lumina of the first flexible catheter and the needle in fluid communication with one another, the tubular sidewall comprising a non-circular transverse cross-section over at least a portion of the length of the tubular sidewall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An echogenic medical device comprising:
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(a) a needle, the needle comprising a proximal end, a distal end and a lumen; and (b) a stylet, the stylet being slidably received in the lumen of the needle, the stylet comprising an echogenic distal end. - View Dependent Claims (13, 14, 15, 16)
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- 17. A needle visible to ultrasound, the needle comprising a tubular sidewall, the tubular sidewall defining a lumen and having a length, the tubular sidewall comprising a non-circular transverse cross-section over at least a portion of the length of the tubular sidewall.
Specification