US20030004539A1 — Methods, systems, and devices for providing embol…

Claim 1

Independent Claim 146 words

1 . A system for deploying and retracting a filter during a procedure, the system comprising: (a) a filter device adapted to capture material within a fluid, said filter device comprising: (i) a guide member adapted to act as an exchange guidewire; (ii) a filter connected to said guide member, said filter being adapted to capture the material within the fluid; (iii) a restraining member coupled to said guide member and adapted to prevent said filter from being deployed; (iv) an actuating assembly cooperating with said restraining member, said actuating assembly being configured to deploy said filter and maintain said filter in a selected position upon activation of said actuating assembly; and (b) a capture catheter selectively coupled to said filter device, said capture catheter being adapted to at least partially surround said filter when material has been capture by said filter following deploying said filter.

Claim 2

Dependent Claim 146 words

1 . A system for deploying and retracting a filter during a procedure, the system comprising: (a) a filter device adapted to capture material within a fluid, said filter device comprising: (i) a guide member adapted to act as an exchange guidewire; (ii) a filter connected to said guide member, said filter being adapted to capture the material within the fluid; (iii) a restraining member coupled to said guide member and adapted to prevent said filter from being deployed; (iv) an actuating assembly cooperating with said restraining member, said actuating assembly being configured to deploy said filter and maintain said filter in a selected position upon activation of said actuating assembly; and (b) a capture catheter selectively coupled to said filter device, said capture catheter being adapted to at least partially surround said filter when material has been capture by said filter following deploying said filter.

Claim 3

Dependent Claim 31 words

2 . A system as recited in claim 1 , wherein said guide member further comprises a distal end and a proximal end, said distal end comprising a plurality of struts.

Claim 4

Dependent Claim 32 words

3 . A system as recited in claim 1 , further comprising a strut assembly coupled to a distal end of said guide member, said strut assembly comprising a plurality of struts.

Claim 5

Dependent Claim 25 words

4 . A system as recited in claim 1 , wherein said restraining member comprises at least one of a sleeve and a securing member.

Claim 6

Dependent Claim 37 words

5 . A system as recited in claim 1 , wherein said filter device comprises a plurality of struts, wherein said restraining member comprises at least a part of said plurality of struts and a securing member.

Claim 7

Dependent Claim 38 words

6 . A system as recited in claim 1 , wherein said restraining member comprises at least part of said filter, wherein said at least part of said filter substantially surrounds a distal end of said guide member.

Claim 8

Dependent Claim 30 words

7 . A system as recited in claim 1 , wherein said actuating assembly comprises an actuating member coupled to at least one of said filter and said restraining member.

Claim 9

Dependent Claim 30 words

8 . A system as recited in claim 1 , wherein said restraining member comprises a sleeve, the sleeve being configured to surround a distal end of said guide member.

Claim 10

Dependent Claim 49 words

9 . A system as recited in claim 1 , wherein said actuating assembly comprises: (a) an actuating member disposed between said restraining member and said guide member; and (b) an actuating mechanism coupled to said restraining member and configured to move said restraining member in a proximal direction.

Claim 11

Dependent Claim 22 words

10 . A system as recited in claim 1 , wherein said capture catheter is adapted to lock to said filter device.

Claim 12

Dependent Claim 23 words

11 . A system as recited in claim 1 , wherein said capture catheter receives at least a portion of said filter device.

Claim 13

Dependent Claim 19 words

12 . A system as recited in claim 1 , wherein said capture catheter is an over-the-wire capture catheter.

Claim 14

Dependent Claim 20 words

13 . A system as recited in claim 1 , wherein said capture catheter is a rapid exchange capture catheter.

Claim 15

Dependent Claim 30 words

14 . A system as recited in claim 1 , further comprising at least one radiopaque marker coupled to at least one of said filter device and said capture catheter.

Claim 16

Dependent Claim 186 words

15 . A system for deploying and retracting a filter device for use during a procedure, the filter system comprising: (a) a filter device adapted to capture material within a fluid, said filter device comprising: (i) a guide member adapted to act as an exchange guidewire; (ii) a filter assembly coupled to said guide member, said filter assembly comprising a filter adapted to capture material within the fluid and a plurality of struts coupled to said filter, said plurality of struts being adapted to extend outwardly to open said filter; (iii) a restraining member coupled to at least one of said guide member and said filter assembly, said restraining member being adapted to prevent said plurality of struts extending outwardly to deploy said filter; (iv) an actuating assembly cooperating with said restraining member, said actuating assembly being configured to release said restraining member to enable said plurality of struts to extend outwardly; and (b) a capture catheter coupled to said filter device, said capture catheter being adapted to at least partially surround said filter when material has been capture by said filter following deploying said filter.

Claim 17

Dependent Claim 186 words

15 . A system for deploying and retracting a filter device for use during a procedure, the filter system comprising: (a) a filter device adapted to capture material within a fluid, said filter device comprising: (i) a guide member adapted to act as an exchange guidewire; (ii) a filter assembly coupled to said guide member, said filter assembly comprising a filter adapted to capture material within the fluid and a plurality of struts coupled to said filter, said plurality of struts being adapted to extend outwardly to open said filter; (iii) a restraining member coupled to at least one of said guide member and said filter assembly, said restraining member being adapted to prevent said plurality of struts extending outwardly to deploy said filter; (iv) an actuating assembly cooperating with said restraining member, said actuating assembly being configured to release said restraining member to enable said plurality of struts to extend outwardly; and (b) a capture catheter coupled to said filter device, said capture catheter being adapted to at least partially surround said filter when material has been capture by said filter following deploying said filter.

Claim 18

Dependent Claim 25 words

16 . A system as recited in claim 15 , wherein said restraining member comprises a sleeve adapted to slidably cooperate with said guide member.

Claim 19

Dependent Claim 49 words

17 . A system as recited in claim 16 , wherein said actuating assembly comprises an actuating member coupled to said sleeve and an actuating element coupled to said actuating member, wherein moving said actuating element moves said actuating member to enable said plurality of struts to extend outwardly.

Claim 20

Dependent Claim 55 words

18 . A system as recited in claim 15 , wherein said restraining member comprises a sleeve surrounding at least a portion of said filter device and a securing member cooperating with said sleeve, wherein the cooperation between said sleeve and said securing member prevents said plurality of struts extending outwardly to deploy said filter.

Claim 21

Dependent Claim 75 words

19 . A system as recited in claim 15 , wherein said restraining member comprises a sleeve having a first portion, a second portion, and a plurality of apertures formed at said first portion and said second portion, said plurality of apertures being adapted to receive and cooperate with a securing member, wherein the cooperation between said plurality of apertures and said securing member prevents said plurality of struts extending outwardly to deploy said filter.

Claim 22

Dependent Claim 75 words

20 . A system as recited in claim 15 , wherein said restraining member comprises a sleeve having a first end, a second end, and a plurality of channels formed at said first end and said second end, said plurality of channels being adapted to receive and cooperate with a securing member, wherein the cooperation between said plurality of channels and said securing member prevents said plurality of struts extending outwardly to deploy said filter.

Claim 23

Dependent Claim 59 words

21 . A system as recited in claim 15 , wherein said restraining member comprises a sleeve having a plurality of hoops, said plurality of hoops being adapted to receive and cooperate with a securing member, wherein the cooperation between said plurality of hoops and said securing member prevents said plurality of struts extending outwardly to deploy said filter.

Claim 24

Dependent Claim 73 words

22 . A system as recited in claim 15 , wherein said restraining member comprises a plurality of tubular member, each of which is coupled to a respective one of said plurality of struts, said plurality of tubular members being adapted to receive and cooperate with a securing member, wherein the cooperation between said plurality of tubular members and said securing member prevents said plurality of struts extending outwardly to deploy said filter.

Claim 25

Dependent Claim 41 words

23 . A system as recited in claim 15 , wherein said filter comprises at least one flap, said flap being adapted to substantially surround said plurality of struts and prevent said plurality of struts extending outwardly to deploy said filter.

Claim 26

Dependent Claim 33 words

24 . A system as recited in claim 15 , wherein said actuating assembly further comprises an actuating member coupled to said restraining member and an actuating element coupled to said actuating member.

Claim 27

Dependent Claim 36 words

25 . A system as recited in claim 24 , wherein said actuating assembly further comprises a fixed clamp set coupled to a moveable clamp set, said moveable clamp set being coupled to an actuating member.

Claim 28

Dependent Claim 21 words

26 . A system as recited in claim 15 , wherein said plurality of struts are biased to open said filter.

Claim 29

Dependent Claim 24 words

27 . A system as recited in claim 15 , wherein at least one of said plurality of struts comprises a coil disposed thereon.

Claim 30

Dependent Claim 36 words

28 . A system as recited in claim 15 , wherein said filter assembly further comprises an aperture at a proximal end of said plurality of struts, said aperture being adapted to receive an atraumatic tip.

Claim 31

Dependent Claim 59 words

29 . A system as recited in claim 15 , wherein said capture catheter comprises a proximal end and a distal end, said proximal end being configured to couple to said actuating assembly and said distal end being configured to force said plurality of struts to close said filter as said distal end is advanced along said guide member.

Claim 32

Dependent Claim 23 words

30 . A system as recited in claim 29 , wherein said capture catheter comprises a locking mechanism disposed at said proximal end.

Claim 33

Dependent Claim 26 words

31 . A system as recited in claim 29 , wherein said capture catheter comprises a lumen extending from said proximal end to said distal end.

Claim 34

Dependent Claim 42 words

32 . A system as recited in claim 29 , wherein said capture catheter comprises a lumen extending from a distal end toward said proximal end, a proximal end of said lumen being distal to said proximal end of said capture catheter.

Claim 35

Dependent Claim 31 words

33 . A system as recited in claim 29 , wherein said capture catheter further comprises a positioning member adapted to enable said capture catheter to be positioned during a procedure.

Claim 36

Dependent Claim 51 words

34 . A system as recited in claim 29 , wherein said capture catheter further comprises: (a) a lumen extending from said distal end toward said proximal end; and (b) an output aperture communicating with said lumen, said output aperture being disposed intermediate of said proximal end and said distal end.

Claim 37

Dependent Claim 26 words

35 . A system as recited in claim 15 , wherein at least one of said filter device and said capture catheter comprises means for radiopacity.

Claim 38

Dependent Claim 21 words

36 . A system as recited in claim 35 , wherein said means for radiopacity comprises at least one radiopaque marker.

Claim 39

Dependent Claim 35 words

37 . A system as recited in claim 35 , wherein said means for radiopacity comprises at least one radiopaque coating applied to at least one part of said filter device and said capture catheter.

Claim 40

Dependent Claim 170 words

38 . A method for deploying and retracting a filter during a procedure, the method comprising: (a) inserting a filter device into a vasculature of a patient distal of a portion of a blood vessel to be accessed during a procedure, said filter device being adapted to act as an exchange guidewire, said filter device comprising: (i) a guide member comprising a proximal end and a distal end; (ii) a filter assembly comprising a filter and a plurality of struts cooperating with said guide member and said filter; and (iii) a restraining member coupled to at least a portion of said plurality of struts, said restraining member being adapted to apply a restraining force to prevent said filter from being deployed; (b) deploying said filter into the blood stream to capture material dislodged during the procedure; and (c) upon positioning a capture catheter to enclose at least a portion of said filter and said guide member, removing said filter device and said capture catheter from the vasculature of the patient.

Claim 41

Dependent Claim 170 words

38 . A method for deploying and retracting a filter during a procedure, the method comprising: (a) inserting a filter device into a vasculature of a patient distal of a portion of a blood vessel to be accessed during a procedure, said filter device being adapted to act as an exchange guidewire, said filter device comprising: (i) a guide member comprising a proximal end and a distal end; (ii) a filter assembly comprising a filter and a plurality of struts cooperating with said guide member and said filter; and (iii) a restraining member coupled to at least a portion of said plurality of struts, said restraining member being adapted to apply a restraining force to prevent said filter from being deployed; (b) deploying said filter into the blood stream to capture material dislodged during the procedure; and (c) upon positioning a capture catheter to enclose at least a portion of said filter and said guide member, removing said filter device and said capture catheter from the vasculature of the patient.

Claim 42

Dependent Claim 23 words

39 . The methods as recited in claim 38 , deploying said filter comprises releasing said restraining member to release said restraining force.

Claim 43

Dependent Claim 26 words

40 . The method as recited in claim 39 , wherein releasing said restraining force further comprises actuating an actuating assembly coupled to said restraining member.

Claim 44

Dependent Claim 30 words

41 . The method as recited in claim 40 , further comprising actuating an actuating element of said actuating assembly to move an actuating member coupled to said restraining member.

Claim 45

Dependent Claim 26 words

42 . The method as recited in claim 40 , further comprising moving said actuating element relative to said guide member to release said restraining force.

Claim 46

Dependent Claim 29 words

43 . The method as recited in claim 40 , further comprising preferentially separating said restraining member about one or more preferential separation regions formed in said restraining member.

Claim 47

Dependent Claim 65 words

44 . The method as recited in claim 39 , wherein releasing said restraining force further comprises moving a securing member in a proximal direction relative to a sleeve that substantially surrounds said plurality of struts, wherein moving said securing member relative to said sleeve releases said restraining force applied to said plurality of struts by the cooperation of said sleeve and said securing member.

Claim 48

Dependent Claim 75 words

45 . The method as recited in claim 39 , wherein releasing said restraining force further comprises moving a securing member in a proximal direction relative to one or more tubular members form on said plurality of struts, wherein moving said securing member relative to said one or more tubular members releases said restraining force applied to said plurality of struts by the cooperation of said one or more tubular members and said securing member.

Claim 49

Dependent Claim 36 words

46 . The method as recited in claim 38 , further comprising retracting said filter until an open end is positioned adjacent to said guide member to prevent the captured material from escaping from said filter.

Claim 50

Dependent Claim 39 words

47 . The method as recited in claim 46 , further comprising moving a distal end of each of said plurality of struts toward a longitudinal axis of a lumen of said guide member to close said open end.

Claim 51

Dependent Claim 20 words

48 . The method as recited in claim 38 , further comprising locking said capture catheter to said guide member.

Claim 52

Dependent Claim 184 words

49 . A method for deploying a vascular filter device during a procedure, comprising: (a) positioning a vascular filter device in a vasculature of a patient distal of a portion of a blood vessel to be accessed during a procedure, the filter device comprising; (i) a guide member comprising a proximal end and a distal end; (ii) means for filtering coupled to said distal end of said guide member; (iii) means for deploying said means for filtering, said means for deploying being coupled to said guide member; and (iv) a restraining mechanism coupled to said guide member and said means for filtering, said restraining mechanism being adapted to prevent said means for filtering being deployed, said restraining mechanism comprising: (1) a sleeve surrounding said distal end of said guide member, said sleeve having a closed state and an open state; and (2) a securing member coupled to said sleeve and retaining said sleeve in a closed position; and (b) removing said securing member to release said sleeve to allow said sleeve to move to said open state where said means for filtering is deployed.

Claim 53

Dependent Claim 184 words

49 . A method for deploying a vascular filter device during a procedure, comprising: (a) positioning a vascular filter device in a vasculature of a patient distal of a portion of a blood vessel to be accessed during a procedure, the filter device comprising; (i) a guide member comprising a proximal end and a distal end; (ii) means for filtering coupled to said distal end of said guide member; (iii) means for deploying said means for filtering, said means for deploying being coupled to said guide member; and (iv) a restraining mechanism coupled to said guide member and said means for filtering, said restraining mechanism being adapted to prevent said means for filtering being deployed, said restraining mechanism comprising: (1) a sleeve surrounding said distal end of said guide member, said sleeve having a closed state and an open state; and (2) a securing member coupled to said sleeve and retaining said sleeve in a closed position; and (b) removing said securing member to release said sleeve to allow said sleeve to move to said open state where said means for filtering is deployed.

Claim 54

Dependent Claim 18 words

50 . A method as recited in claim 49 , wherein said means for filtering comprises a filter.

Claim 55

Dependent Claim 46 words

51 . A method as recited in claim 50 , wherein said means for deploying comprises a plurality of struts coupled to said distal end of said guide member, at least one of said plurality of struts being biased to extend outwardly to deploy said filter.

Claim 56

Dependent Claim 35 words

52 . A method as recited in claim 51 , further comprising releasing said plurality of struts to said at least one of said plurality of said struts to extend outwardly to deploy said filter.

Claim 57

Dependent Claim 25 words

53 . A method as recited in claim 49 , further comprising positioning a capture catheter on at least a portion of said guide member.

Methods, systems, and devices for providing embolic protection and removing embolic material

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