Mechanically active infusion catheter
First Claim
Patent Images
1. A pharmomechanical device, comprising:
- a catheter having a corkscrew configuration throughout its length that is substantially incapable of damaging an endothelium of a vascular structure, said catheter rotating between 30 rpm and 600 rpm once it is inserted inside a patient, said catheter increasing the surface area of a clot in said vascular structure such that said clot can be dissolved by a lytic agent; and
means for providing mechanical motion to said catheter throughout a length of a vessel for a prolonged period of time while said lytic agent is acting.
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Abstract
A device and method to dissolve or eliminate blood clots from a patient relies upon a non-rapid moving mechanism to physically dissolve clots without damaging endothelium of the arteries and veins of a patient. In one embodiment, in addition to mechanical agitation of a clot, a thrombolytic agent is administered simultaneously with such agitation. Preferably, intermittent agitation is utilized over a prolonged period of time to effectuate clot removal.
140 Citations
17 Claims
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1. A pharmomechanical device, comprising:
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a catheter having a corkscrew configuration throughout its length that is substantially incapable of damaging an endothelium of a vascular structure, said catheter rotating between 30 rpm and 600 rpm once it is inserted inside a patient, said catheter increasing the surface area of a clot in said vascular structure such that said clot can be dissolved by a lytic agent; and
means for providing mechanical motion to said catheter throughout a length of a vessel for a prolonged period of time while said lytic agent is acting. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A pharmomechanical device, comprising:
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a catheter having a length and having a corkscrew configuration throughout a substantial portion of said length, said catheter being substantially incapable of damaging an endothelium of a vascular structure, said catheter rotating between 30 rpm and 600 rpm once it is inserted inside a patient to increase the surface area of a clot in said vascular structure; and
a means for rotating said catheter. - View Dependent Claims (15, 16)
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17. A pharmomechanical device, comprising:
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a catheter having a corkscrew configuration throughout substantially its entire length that is substantially incapable of damaging an endothelium of a vascular structure, said catheter rotating less than about 55 rpm once it is inserted inside a patient, said catheter increasing the surface area of a clot in said vascular structure such that said clot can be dissolved by a lytic agent; and
a pump that delivers lytic agent in pulse waves, said pulse waves causing an intermittent mechanical motion of said catheter.
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Specification