Anastomosis device and system
First Claim
1. An anastomosis device for associating two lumen-comprising body structures, having an un-deployed and a deployed state and switchable from the former to the latter, the device comprising:
- a body with an overall cylindrical shape defining a proximal-distal extending axis of and comprising an external essentially cylindrical body part with a lumen and an internal body part at least a portion thereof being deployed within the lumen of the external body part and axially displaceable with respect thereto in the switch between the un-deployed and the deployed states;
said internal body part having an internal duct extending axially therethrough whereby in the deployed state there is a fluid communication between the distal and the proximal ends of the body; and
two tissue-engaging units axially displaced from one another along said axis;
at least one of the two units can change its state from a closed state in the un-deployed state of the device to an opened, tissue-engaging state in the deployed state of the device in which said first unit extends in an overall radial direction and is adapted in this state for tight association with internal walls of one of the body structures, such that the combined tissue-engaging action of the two unit holds the two structures together.
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Accused Products
Abstract
An anastomosis device for forming two lumen-comprising body structures having an un-deployed and a deployed state and switchable from the former to the latter, comprising: a body with an overall cylindrical shape defining a proximal-distal extending axis of and comprising an external essentially cylindrical body part with a lumen and an internal body part at least a portion thereof being deployed within the lumen of the external body part and axially displacable with respect thereto in the switch between the un-deployed and the deployed states; said internal body part having an internal duct extending axially therethrough whereby in the deployed state there is a fluid communication between the distal and the proximal ends of the body; and two tissue-engaging units axially displaced from one another along said axis; at least one of the two units can change its state from a closed state in the un-deployed state of the device to an opened, tissue-engaging state in the deployed state of the device in which said first unit extends in an overall radial direction and is adapted in this state for tight association with internal walls of one of the body structures, such that the combined tissue-engaging action of the two unit holds the two structures together.
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Citations
45 Claims
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1. An anastomosis device for associating two lumen-comprising body structures, having an un-deployed and a deployed state and switchable from the former to the latter, the device comprising:
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a body with an overall cylindrical shape defining a proximal-distal extending axis of and comprising an external essentially cylindrical body part with a lumen and an internal body part at least a portion thereof being deployed within the lumen of the external body part and axially displaceable with respect thereto in the switch between the un-deployed and the deployed states;
said internal body part having an internal duct extending axially therethrough whereby in the deployed state there is a fluid communication between the distal and the proximal ends of the body; andtwo tissue-engaging units axially displaced from one another along said axis;
at least one of the two units can change its state from a closed state in the un-deployed state of the device to an opened, tissue-engaging state in the deployed state of the device in which said first unit extends in an overall radial direction and is adapted in this state for tight association with internal walls of one of the body structures, such that the combined tissue-engaging action of the two unit holds the two structures together. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 19, 22, 24, 25, 26, 27, 28, 29, 30, 31, 40, 41, 42, 43, 44, 45)
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18. An anastomosis device according to claim 18, wherein said membrane is non- or minimally stretchable and is attached to each one of the ribs and is stretched to maximum in the open state conferring axial and tangential stability and rigidity to the tissue engaging unit to which it is attached.
- 20. An anastomosis device according to claim 20, wherein the two units are essentially identical.
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23. An anastomosis device according to claim 23, where said one segment is the proximal segment, whereby in the open state said free end points in general distal direction.
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32. An anastomosis device having an un-deployed and a deployed state and switchable from the former to the latter, the device comprising:
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a body with an overall cylindrical shape defining a proximal-distal extending axis and two tissue-engaging units axially displaced from one another along said axis; at least one of the two units can change its state from a closed state in the un-deployed state of the device to an opened, tissue-engaging state in the deployed state of the device in which said first unit extends in an overall radial direction and is adapted in this state for tight association with internal walls of one of the body structures, such that the combined tissue-engaging action of the two unit holds the two structures together; said at least one unit having a membrane associated therewith such that in the tissue engaging state said membrane forms a fluid-tight contact with internal walls of the body structure. - View Dependent Claims (33, 34, 35)
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36. An anastomosis device having an undeployed and a deployed state and switchable from the former to the latter, the device comprising:
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an essentially cylindrical body defining a proximal-distal extending axis of and having an internal duct extending axially therethrough providing fluid communication between the distal and the proximal ends of the body; an actuation mechanism for switching between the un-deployed and the deployed state of the device; and two tissue-engaging units axially displaced from one another along said axis;
at least one of the engaging units has a plurality of members each comprising a segment having a free end with a pointed, tissue-penetrating tip, in the un-deployed state of the device said members blend into the cylindrical shape of the body, and in the deployed state, said free ends have an outwardly slanted orientation and can associate with internal walls of a body structure by penetrating inner layers thereof. - View Dependent Claims (37, 38, 39)
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Specification