ATHERECTOMY DEVICES AND METHODS
First Claim
Patent Images
1. A vascular device for removing material from body lumens, the device comprising:
- a catheter body having a proximal end and a distal end;
a cutter assembly located at the distal end of the catheter body, the cutter assembly comprising a housing having at least one opening and a cutter having at least one cutting surface configured to rotate relative to the housing, where movement between the housing opening and the cutting surface removes material located therebetween;
a rotating shaft extending through the catheter body and coupled to the cutter, the shaft having a proximal end adapted to couple to a first rotating mechanism; and
a deflecting member extending along the catheter body, such that movement of the deflecting member causes deflection of the cutter assembly relative to an axis of the catheter.
3 Assignments
0 Petitions
Accused Products
Abstract
The devices and methods generally relate to treatment of occluded body lumens. In particular, the present devices and method relate to removal of the occluding material from the blood vessels as well as other body lumens.
312 Citations
106 Claims
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1. A vascular device for removing material from body lumens, the device comprising:
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a catheter body having a proximal end and a distal end; a cutter assembly located at the distal end of the catheter body, the cutter assembly comprising a housing having at least one opening and a cutter having at least one cutting surface configured to rotate relative to the housing, where movement between the housing opening and the cutting surface removes material located therebetween; a rotating shaft extending through the catheter body and coupled to the cutter, the shaft having a proximal end adapted to couple to a first rotating mechanism; and a deflecting member extending along the catheter body, such that movement of the deflecting member causes deflection of the cutter assembly relative to an axis of the catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. A vascular device for removing material from body lumens, the device comprising:
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a straightening tube, having a straight distal portion; a catheter body having a proximal end and a distal end, the catheter body having a flexible section located towards the distal end, such that when located in the straight distal portion of the straightening tube the flexible section is less curved a cutter assembly located at the distal end of the catheter body, the cutter assembly comprising a housing having at least one opening and a cutter having at least one cutting surface configured to rotate relative to the housing, where movement between the housing opening and the cutting surface removes material located therebetween; and a rotating shaft extending through the catheter body and coupled to the cutter, the torque shaft having a proximal end adapted to couple to a first rotating mechanism. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
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50. A vascular device for removing material from body lumens, the device comprising:
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a steering member; a catheter body having a stiffer proximal portion and a more flexible distal portion; a steering member located along the catheter body, the steering member having a curved section located towards the distal end, where the curved section is more flexible than the stiffer proximal portion of the catheter body such that when located along the flexible portion the flexible distal portion of the catheter body takes the shape of the curved section a cutter assembly located at the distal end of the catheter body, the cutter assembly comprising a housing having at least one opening and a cutter having at least one cutting surface configured to rotate relative to the housing, where movement between the housing opening and the cutting surface removes material located therebetween; a rotating shaft extending through the catheter body and coupled to the cutter, the torque shaft having a proximal end adapted to couple to a first rotating mechanism; and where on advancement of the curved section of the steering member out of the distal portion of the sheath, the curved section reshapes the catheter body. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62)
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63. A method for debulking material within a totally or partially occluded blood vessel, the method comprising:
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inserting a catheter body having a cutter assembly within the blood vessel; rotating the cutter assembly to remove the material and form a first opening in the body lumen; deflecting the first cutter assembly relative to an axis of the catheter body; rotating the catheter body while rotating the cutter assembly to form a second opening in the body lumen where the second is larger than the first opening. - View Dependent Claims (64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78)
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79. A vascular device for removing material from body lumens, the device comprising:
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a catheter body having a proximal portion and a distal portion; a steering tube having varying stiffness along its circumference at the distal portion; a cutter assembly located at the distal end of the catheter body, the cutter assembly comprising a housing having at least one opening and a cutter having at least one cutting surface configured to rotate relative to the housing, where movement between the housing opening and the cutting surface removes material located there between; and
the distal portion of the steering tube is attached to the cutter assembly. - View Dependent Claims (80, 81)
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82. A vascular device for circulation of fluid for contrast, the device comprising:
a support catheter body having a proximal end and a distal end, the distal end containing at least one port on the surface for injection or aspiration of fluid. - View Dependent Claims (83, 84, 85, 86, 87, 88, 89, 90, 91)
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92. A device for supporting a catheter within a lumen of the body comprising:
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a proximal and a distal end; a central lumen; an expandable member near a distal portion of the device, where the member is configured to expand to position the centerline of the device at its distal end at some angular rotation and position relative to the centerline of the body lumen.
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93. A device for debulking material in an occluded body lumen, the device comprising:
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a support catheter with a proximal and a distal end; a coring cutter with a mechanism that enables it to create a lumen through a fibrous or calcific cap. - View Dependent Claims (94, 95, 96, 97, 98, 99, 100)
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101. A method for circulating fluid for contrast, the method comprising:
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inserting the support catheter within the blood vessel, where the support catheter comprises a support catheter body having a proximal end and a distal end, the distal end containing at least one port on the surface for injection or aspiration of fluid; injecting the fluid for contrast through a lumen or port in the support catheter body; and aspirating the fluid for contrast into a lumen or port in the support catheter body.
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102. The method of claim Error! Reference source not found., where the support catheter is centered within the blood vessel using at least one basket or at least one balloon.
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103. The method of claim Error! Reference source not found., further comprising:
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inserting a catheter body having a coring cutter assembly within the blood vessel; driving the coring cutter assembly through the tough fibrous cap in the vessel to form a first body opening in the vessel; removing the coring cutter assembly from the body; inserting a second cutter assembly with a guidewire, where the guidewire is inserted through the first opening. - View Dependent Claims (104, 106)
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105. The method of 103, where the coring cutter assembly comprises a helical groove or cylinder to drive itself through the tough fibrous cap.
Specification