Universal catheter with interchangeable work element
First Claim
1. An intravascular catheter for use with an interchangeable work element,the catheter comprising:
- a catheter body having a distal end, a proximal end and a lumen extending therebetween; and
a housing having a hollow interior, an aperture on a lateral side thereof and an open proximal end connected to the distal end of the catheter body, the connection defining a junctional region; and
the lumen of the catheter body and the hollow interior of the housing combining to create a receiving space;
a coupling element connecting the distal end of the catheter body and the proximal end of the housing, the coupling element comprising a tubular adapter surrounding the distal end of the catheter body and the proximal end of the housing,whereby, a work element may be inserted into the receiving space from the proximal end of the catheter body.
2 Assignments
0 Petitions
Accused Products
Abstract
Disclosed herein is an intravascular universal catheter having interchangeable work elements and methods of use thereof. The catheter comprises a flexible catheter body having a distal end, a proximal end and a lumen extending between the ends. A housing having an open interior and an aperture on a lateral side is attached to the distal end of the catheter body by a coupling element. A work element is movably disposed within the housing and operative through the aperture. A work element connector is disposed in a lumen of the catheter body and has a distal end connected to the work element. At least the distal portion of the lumen defines a receiving space within the catheter body, and the coupling element is configured to allow retraction of the work element from the housing through the open proximal end into the receiving space. In a preferred embodiment, perfusion ports are disposed in the catheter body and the housing proximate to the junctional region of the catheter body with the housing. The perfusion ports are in communication with the lumen. The work element may be withdrawn from the housing proximal to the perfusion ports to allow blood to flow into the housing and bypass the work element for perfusion of tissue downstream. Preferably, the lumen is configured to allow the work element to be completely withdrawn from the catheter body, so as to permit interchange of various work elements.
322 Citations
26 Claims
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1. An intravascular catheter for use with an interchangeable work element,
the catheter comprising: -
a catheter body having a distal end, a proximal end and a lumen extending therebetween; and a housing having a hollow interior, an aperture on a lateral side thereof and an open proximal end connected to the distal end of the catheter body, the connection defining a junctional region; and the lumen of the catheter body and the hollow interior of the housing combining to create a receiving space; a coupling element connecting the distal end of the catheter body and the proximal end of the housing, the coupling element comprising a tubular adapter surrounding the distal end of the catheter body and the proximal end of the housing, whereby, a work element may be inserted into the receiving space from the proximal end of the catheter body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of surgically intervening within a blood vessel lumen, the method comprising the steps of:
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providing a universal catheter that includes; a catheter body having a distal end, a proximal end and a lumen extending therebetween, a housing having a hollow interior, an aperture on a lateral side thereof, and an open proximal end connected to the distal end of the catheter body, the connection defining a junctional region, a perfusion port proximate to the junctional region and the lumen of the catheter body and the hollow interior of the housing combining to create a receiving space for a work element; selecting a first work element; inserting the first work element into the receiving space from the proximal end of the catheter body; inserting the universal catheter from its distal end into and along the blood vessel lumen until the aperture of the housing is opposing a site of interest; and retracting the first work element proximal to the perfusion port whereby blood is able to flow past the catheter operating the first work element. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A method of surgically intervening within a blood vessel lumen, the method comprising the steps of:
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providing a universal catheter including a catheter body having a distal end, a proximal end and a lumen extending therebetween, a housing having a hollow interior, an aperture on a lateral side thereof, and an open proximal end connected to the distal end of the catheter body, the connection defining a junctional region, and a drive cable disposed through the catheter body lumen and extending beyond the distal end of the catheter body into the hollow interior of the housing, and a rotary atheroma cutter with a cutting edge, the cutter being disposed within the housing and attached to the drive cable, and the cutter oriented such that the cutting edge faces the drive cable; inserting the universal catheter from its distal end into and along the blood vessel lumen until the aperture of the housing is opposing a site with stenotic material on an interior wall of the blood vessel; axially translating the cutter past the housing aperture and toward the catheter body, severing the stenotic material thereby and; removing the cutter from the proximal end of the catheter body while the catheter body and housing remain in place within the blood lumen. - View Dependent Claims (17)
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18. A method of surgically intervening within a blood vessel lumen, the method comprising the steps of:
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providing a universal catheter including; a catheter body having a distal end, a proximal end and a lumen extending therebetween, a housing having a hollow interior, an aperture on a lateral side thereof, and an open proximal end connected to the distal end of the catheter body, the connection defining a junctional region, and the lumen of the catheter body and the hollow interior of the housing combining to create a receiving space for a work element; selecting a first work element; inserting the first work element into the receiving space from the proximal end of the catheter body; removing the first work element from the proximal end of the catheter body while the catheter body and housing remain in place within the blood vessel selecting a second work element inserting the universal catheter from its distal end into and along the blood vessel lumen until the aperture of the housing is opposing a site of interest; and operating either the first or the second work element as appropriate. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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Specification