Device to permit offpump beating heart coronary bypass surgery
First Claim
1. A system for use during coronary surgery on a beating heart, comprising:
- a suction head adapted to positively engage the beating heart;
an arm which is flexible in an unlocked condition and rigid in a locked condition;
a spring suspension connecting said suction head to said arm; and
a surgery target immobilizing element adapted to contact a portion of the heart to immobilize the location of the heart on which the surgery is being performed.
7 Assignments
0 Petitions
Accused Products
Abstract
A system for use in conducting coronary surgery permits coronary surgery on a beating heart while maintaining cardiac output unabated and uninterrupted. Circumflex coronary artery surgery can be performed using the system. The system includes a first device for engaging and repositioning the beating heart to a displaced position, and is capable of maintaining the heart in the displaced position to perform a surgical procedures. The system includes a second device adapted to engage a portion of the heart to immobilize that portion for conducting a surgical procedure in the immobilized location, while the remainder of the heart continues to beat. Both first and second devices may be adapted to be fixed to a relatively stationary object, such as a frame, which may be a sternal retractor.
253 Citations
47 Claims
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1. A system for use during coronary surgery on a beating heart, comprising:
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a suction head adapted to positively engage the beating heart; an arm which is flexible in an unlocked condition and rigid in a locked condition; a spring suspension connecting said suction head to said arm; and a surgery target immobilizing element adapted to contact a portion of the heart to immobilize the location of the heart on which the surgery is being performed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A system for use during coronary surgery on a beating heart, comprising:
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a suction head adapted to engage a region of the heart; an arm which is flexible in an unlocked condition and rigid in a locked condition; a suspension mechanism connecting said suction head to said arm; an attachment mechanism adapted to fix said arm to a relatively stationary object, wherein said suction head is free to move, relative to said arm via said suspension mechanism, even when said arm is in said locked condition; and a surgery target immobilizing device adapted to contact a portion of the heart to immobilize the location of the heart during performance of the surgery. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. A system for use during coronary surgery on a beating heart, comprising:
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a first device configured to engage and reposition the beating heart to a displaced position and maintain the heart in the displaced position while allowing cardiac output to be maintained substantially unabated and uninterrupted, said first device having an engaging portion adapted to engage the heart and a proximal portion configured to be fixed relative to a relatively stationary object, wherein said engaging portion moves with movements of the beating heart, while maintaining the beating heart in the displaced position, when said proximal portion is fixed; and a second device adapted to engage a portion of the heart to immobilize the portion, while a remainder of the heart continues to beat, to facilitate surgery in the location of the portion of the heart. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47)
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Specification