US2007225749A1PendingUtilityA1

Methods and devices for restoring blood flow within blocked vasculature

54
Individually held — no corporate assignee on recordPriority: Feb 3, 2006Filed: Feb 5, 2007Published: Sep 27, 2007
Est. expiryFeb 3, 2026(expired)· nominal 20-yr term from priority
Inventors:Brian B. MartinMartin Dieck
A61B 2017/22034A61B 2017/00867A61B 2017/22051A61B 2017/22094A61B 17/22012A61B 17/221A61B 2017/2212A61B 2017/00862A61B 2017/2215A61B 17/320725A61B 17/32056A61B 2017/00778A61B 2017/00853
54
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

The devices and methods described herein to clearing of blockages within body lumens, such as the vasculature, by addressing the frictional resistance on the obstruction prior to attempting to translate and/or mobilize the obstruction within the body lumen.

Claims

exact text as granted — not AI-modified
1 . An intravascular apparatus for removing an obstruction from a vessel of a patient, the device comprising: 
 a microcatheter having a size and flexibility to navigate within a neurovascular region of the patient;    a near connector having a first expanded profile when unconstrained, such that on deployment in the vessel the near connector expands towards the first expanded profile;    a far connector being collapsible to fit within the microcatheter and having a second expanded profile when unconstrained, such that on deployment in the vessel the second connector expands towards the second expanded profile;    at least one lead filament coupling the near connector to the microcatheter; and    a plurality of traversing filaments extending between the near and far connectors, and spaced apart on each connector such that spacing the traversing filaments causes the filaments to move towards a wall of the vessel.    
     
     
         2 . The intravascular apparatus of  claim 1 , further comprising a blood permeable member affixed to the far connector, the blood permeable member being collapsible to fit within the microcatheter.  
     
     
         3 . The intravascular apparatus of  claim 2 , where the blood permeable member comprises a structure selected from the group consisting of a basket, a filter, a bag, a coil, a helical wire structure, a mesh, a corrugated sheet, a braided wires, a single wound wire, a plurality of crossing wires, a tube, a membrane, and a film.  
     
     
         4 . The intravascular apparatus of  claim 2 , further comprising a plurality of hook shaped members located on the blood permeable member.  
     
     
         5 . The intravascular apparatus of  claim 1 , further comprising a third connector located adjacent to the near connector, and a plurality of non-rotating filaments extending between the far connector and the third connector, where the first connector is rotatable relative to the far and third connectors to cause the plurality of traversing filaments to form a mesh pattern.  
     
     
         6 . The intravascular apparatus of  claim 1 , where the near and far connectors are rotatable relative to each other to cause at least a section of the plurality of filaments to cross one another.  
     
     
         7 . The intravascular apparatus of  claim 6 , where the near connector is stationary and the far connector is rotatable.  
     
     
         8 . The intravascular apparatus of  claim 6 , where the far connector is stationary and the near connector is rotatable.  
     
     
         9 . The intravascular apparatus of  claim 6 , where the far connector and the near connector are rotatable in opposite directions.  
     
     
         10 . The intravascular apparatus of  claim 1 , where the near connector comprises a shape selected from a circle, an arcuate shape, a partial circular shape, a loop, an oval, a square, a rectangle, a polygon, an overlapping loop, a pair of semi-circles, a flower shape, and a figure 8.  
     
     
         11 . The intravascular apparatus of  claim 1 , where the far connector comprises a shape selected from an arcuate shape, a partial circular shape, a loop, an oval, a square, a rectangle, a polygon, an overlapping loop, a pair of semi-circles, a flower shape, and a figure 8.  
     
     
         12 . The intravascular apparatus of  claim 1 , further comprising a plurality of hook shaped members located on at least one filament.  
     
     
         13 . The intravascular apparatus of  claim 1 , where the near connector is collapsible to fit within the microcatheter.  
     
     
         14 . The intravascular apparatus of  claim 1 , where the near connector is affixed to an exterior of the microcatheter.  
     
     
         15 . The intravascular apparatus of  claim 1 , where the near connector comprises a plurality of near connector portions.  
     
     
         16 . The intravascular apparatus of  claim 15 , where at least one of the near connector portions is axially spaced from another near connector portion.  
     
     
         17 . The intravascular apparatus of  claim 1 , where the far connector comprises a plurality of far connector portions.  
     
     
         18 . The intravascular apparatus of  claim 17 , where at least one of the far connector portions is axially spaced from another far connector portion.  
     
     
         19 . The intravascular apparatus of  claim 1 , further comprising at least one support ring within the filament.  
     
     
         20 . The intravascular apparatus of  claim 1 , where the near connector, the lead filament, and the plurality of traversing filaments, are collapsible to fit within the microcatheter and are self-expanding upon deployment from the microcatheter.  
     
     
         21 . The intravascular apparatus of  claim 1 , where the near connector, the lead filament, and the plurality of traversing filaments, are collapsible to fit within the microcatheter and are actuated to expand upon deployment from the microcatheter.  
     
     
         22 . The intravascular apparatus of  claim 1 , further comprising a balloon located on the microcatheter, where on expansion the balloon expands the vessel allowing for removal of the obstruction.  
     
     
         23 . The intravascular apparatus of  claim 1 , further comprising an expandable coil located on the microcatheter and having an expanded profile, where deployment of the coil causes expansion of the vessel allowing for removal of the obstruction.  
     
     
         24 . The intravascular apparatus of  claim 1 , where at least one of the traversing filaments is moveable relative to the near connector so that tension may be applied to the respective filament to spread the filaments.  
     
     
         25 . The intravascular apparatus of  claim 1 , where at least one of the traversing filaments is moveable relative to the far connector so that tension may be applied to the respective filament to spread the filaments.  
     
     
         26 . The intravascular apparatus of  claim 1 , where at least one of the traversing filaments is moveable relative to the near and far connectors so that tension may be applied to the respective filament to spread the filaments.  
     
     
         27 . The intravascular apparatus of  claim 1 , where the filaments are fixed relative to the near and far connectors such that axial movement of the lead wire causes axial movement of the near and far connectors and filaments.  
     
     
         28 .- 167 . (canceled)

Join the waitlist — get patent alerts

Track US2007225749A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.