Method and apparatus for clamping tissue layers and occluding tubular body lumens
First Claim
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1. An apparatus for securing tissue layers together comprising:
- a distal implant comprising a distal body, a first locking element, and a plurality of legs which may assume (i) a diametrically-reduced delivery configuration in which it can be passed through at least two tissue layers and (ii) a diametrically-expanded deployed configuration in which the legs are extended radially of the distal body; and
a proximal implant, separate from the distal implant, the proximal implant comprising a proximal body, a second locking element, and a plurality of legs configured to assume (i) a diametrically-reduced delivery configuration and (ii) a diametrically-expanded deployed configuration in which the legs are extended radially of the proximal body;
wherein the implants are connectible together to connect the first locking element and the second locking element, thereby locking the distal implant and the proximal implant together, the radially extended configuration of the legs and the locking elements being constructed and arranged so that when the implants are locked together legs of the proximal and distal implants are interdigitated in the absence of tissue between the implants;
the proximal and distal implants being deployable separately and independently of each other.
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Abstract
Apparatus for occluding a space between a first structure and a second structure, said apparatus comprising:
- an occluder, said occluder comprising a distal implant and a proximal implant, wherein:
- said distal implant comprises a body and a locking shaft mounted to said body, wherein said body of said distal implant comprises a plurality of legs which may assume (i) a diametrically-reduced configuration for disposition within the lumen of a tube, and (ii) a diametrically-expanded configuration for disposition against the first structure, and further wherein said locking shaft comprises a first locking element for selective connection to said proximal implant and a second locking element for selective connection to an inserter for deploying said occluder; and
- said proximal implant comprises a body having an opening, wherein said body of said proximal implant comprises a plurality of legs which may assume (i) a diametrically-reduced configuration for disposition within the lumen of a tube, and (ii) a diametrically-expanded configuration for disposition against the second structure, and further wherein said body of said proximal implant comprises a third locking element for selective connection to said first locking element of said distal implant;
- wherein said locking shaft of said distal implant is slidably receivable within said opening in said body of said proximal implant, and further wherein said first locking element of said distal implant and said third locking element of said proximal implant are selectively engagable with one another so as to hold said distal implant and said proximal implant in fixed position relative to one another.
- an occluder, said occluder comprising a distal implant and a proximal implant, wherein:
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Citations
28 Claims
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1. An apparatus for securing tissue layers together comprising:
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a distal implant comprising a distal body, a first locking element, and a plurality of legs which may assume (i) a diametrically-reduced delivery configuration in which it can be passed through at least two tissue layers and (ii) a diametrically-expanded deployed configuration in which the legs are extended radially of the distal body; and a proximal implant, separate from the distal implant, the proximal implant comprising a proximal body, a second locking element, and a plurality of legs configured to assume (i) a diametrically-reduced delivery configuration and (ii) a diametrically-expanded deployed configuration in which the legs are extended radially of the proximal body; wherein the implants are connectible together to connect the first locking element and the second locking element, thereby locking the distal implant and the proximal implant together, the radially extended configuration of the legs and the locking elements being constructed and arranged so that when the implants are locked together legs of the proximal and distal implants are interdigitated in the absence of tissue between the implants; the proximal and distal implants being deployable separately and independently of each other. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification