Methods and Devices for Occlusion of an Atrial Appendage
First Claim
1. A system for occluding a left atrial appendage of a patient, the system comprising:
- a ring occluder that can be positioned around the left atrial appendage; and
a ring applicator to position the ring occluder with respect to the left atrial appendage,the ring applicator including a ring spreader with a spreader hinge coupled to an upper spreader jaw and a lower spreader jaw,the ring occluder coupled between the lower spreader jaw and the upper spreader jaw,the spreader hinge moving between an open position in which the ring occluder has a first diameter and a closed position in which the ring occluder has a second diameter, the first diameter being larger than the second diameter.
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Abstract
A novel occluder application and clip device for treatment of embolic stroke caused by atrial fibrillation uses multiple sutures in a non directional handle to affix the occlusion device to the applicator and manipulate the occluder from an open and receiving position to a closed and occluding position. The occluder is retained in place by a clamping means related to locks retainers, resilient material or otherwise. An actuator mechanism is used to manipulate the occluder to a locked or occluding position. The applicator with the occluder attached has a low profile and remote manipulations to allow the occluder to be delivered to the clamping location within a patient through a small incision or delivery port such as a trocar cannula or the like.
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Citations
37 Claims
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1. A system for occluding a left atrial appendage of a patient, the system comprising:
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a ring occluder that can be positioned around the left atrial appendage; and a ring applicator to position the ring occluder with respect to the left atrial appendage, the ring applicator including a ring spreader with a spreader hinge coupled to an upper spreader jaw and a lower spreader jaw, the ring occluder coupled between the lower spreader jaw and the upper spreader jaw, the spreader hinge moving between an open position in which the ring occluder has a first diameter and a closed position in which the ring occluder has a second diameter, the first diameter being larger than the second diameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A system for occluding a left atrial appendage of a patient, the system comprising:
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a clip occluder that can be positioned around the left atrial appendage, the clip occluder including a clip hinge coupled to an upper clip jaw and a lower clip jaw, the clip occluder including a clip lock; and a clip applicator to position the clip occluder with respect to the left atrial appendage, the clip applicator including a clip actuator coupled to the clip occluder by an actuator suture, the actuator suture controlling a distance between the upper clip jaw and the lower clip jaw, the clip applicator removably coupled to the clip occluder with a retention suture. - View Dependent Claims (14, 15, 16)
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17. A clamp for occluding a left atrial appendage of a patient, the system comprising:
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an upper pressure plate; a lower pressure plate; at least one connector rod coupled to the upper pressure plate and the lower pressure plate, the at least one connector rod include a plurality of teeth; and at least one receiver coupled the at least one connector rod in order to engage the plurality of teeth, the at least one receiver being moveable to reduce a distance between the upper pressure plate and the lower pressure plate. - View Dependent Claims (18, 19)
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20. A clamp for occluding a left atrial appendage of a patient, the system comprising:
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an upper pressure plate having a first tie channel; a lower pressure plate having a second tie channel; and a tie positioned through the first tie channel and the second tie channel, the tie being moveable to reduce a distance between the upper pressure plate and the lower pressure plate.
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21. A system for occluding a left atrial appendage of a patient, the system comprising:
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a loop clip occluder that can be positioned around the left atrial appendage, the loop clip occluder including a clip jaw, a loop, and a clip lock; and a loop clip applicator to position the loop clip occluder with respect to the left atrial appendage, the loop clip applicator including a loop clip actuator coupled to the loop clip occluder by an actuator suture, the actuator suture controlling movement of the loop with respect to the clip jaw and the clip lock, the loop clip applicator removably coupled to the loop clip occluder with a retention suture. - View Dependent Claims (22, 23, 24, 25)
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26. A system for occluding a left atrial appendage of a patient, the system comprising:
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a ring applicator including a shaft having a handle on a proximal end and a distal end, and a lumen extending from the handle to the distal end of the shaft, an actuator coupled to the handle, and a ring spreader assembly on the distal end of the shaft, the ring spreader assembly having a plurality of ring expanding members; and a ring occluder releasably attached to the plurality of ring expanding members, the ring occluder being stretched to an open position by the actuator to allow the ring occluder to be manipulated over tissue to be occluded. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification