Capsule suction punch instrument and method of use
First Claim
1. A surgical instrument comprising:
- a tubular body having a distal portion and a proximal portion;
an elongated tubular cutting member having a cutting edge, said cutting member being constructed and arranged with respect to said tubular body so as to be longitudinally received within said tubular body for guided longitudinal reciprocal movement therein between a cutting position wherein said cutting edge projects from said distal portion and a non-cutting position wherein said cutting edge is retracted within the tubular body;
means for selectively urging said cutting member and thus said cutting edge toward said cutting position; and
a vacuum source coupled to at least one of said tubular body and said cutting member for generating a vacuum therein, said vacuum source being constructed and arranged with respect to one of said tubular body and said cutting member so as to hold tissue to be cut.
1 Assignment
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Accused Products
Abstract
A surgical instrument is provided having a tubular body including a distal portion, a proximal portion and a mid portion. A cutting member having a cutting edge is longitudinally received within the tubular body for guided reciprocal movement therein between a cutting position wherein the cutting edge extends from the distal portion and a non-cutting position wherein the cutting edge is retracted within the tubular body. A urging mechanism is also provided within the mid portion of the tubular body for urging the cutting member to the cutting position. A vacuum source is coupled to the cutting member at a proximal end thereof and provides a vacuum directed to the distal portion to hold tissue to be cut. A method of cutting the tissue is also provided.
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Citations
23 Claims
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1. A surgical instrument comprising:
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a tubular body having a distal portion and a proximal portion; an elongated tubular cutting member having a cutting edge, said cutting member being constructed and arranged with respect to said tubular body so as to be longitudinally received within said tubular body for guided longitudinal reciprocal movement therein between a cutting position wherein said cutting edge projects from said distal portion and a non-cutting position wherein said cutting edge is retracted within the tubular body; means for selectively urging said cutting member and thus said cutting edge toward said cutting position; and a vacuum source coupled to at least one of said tubular body and said cutting member for generating a vacuum therein, said vacuum source being constructed and arranged with respect to one of said tubular body and said cutting member so as to hold tissue to be cut. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A surgical instrument comprising
a tubular body having a distal portion and a proximal portion; -
a cutting member having a cutting edge, said cutting member being longitudinally received within said tubular body and being constructed and arranged with respect to said tubular body for guided reciprocal movement therein between a cutting position wherein said cutting edge projects from said distal portion and a non-cutting position wherein said cutting edge is retracted within the tubular body; means for selectively urging said cutting member and thus said cutting edge toward said cutting position; and a vacuum source coupled to at least one of said tubular body and said cutting member for generating a vacuum therein, said vacuum source being constructed and arranged with respect to one of said tubular body and said cutting member so as to hold tissue to be cut, said means for selectively urging comprising; means defining a shoulder in a surface of said cutting member; a spring member; an actuating element constructed and arranged with respect to said tubular body so as to be slidably disposed within said tubular body and movable from a first position wherein said cutting member is in said non-cutting position to a second position wherein said cutting member is in said cutting position, said spring member being coupled to said actuating element so as to urge said actuating element toward the second position; and means for holding said actuating element against the urging force of said spring member, whereby release of said actuating element from said holding means permits said actuating element to move due to urging by said spring forcing said actuating element into contact with said shoulder means, thereby moving said cutting member to said cutting position, said actuating element including a slide member having a spring arm, said tubular body having surfaces defining a notch portion, said spring arm being in a first, relaxed position when disposed in said notch portion to retain said cutting member in said first, non-cutting position, movement of said spring arm from said first position to a second, biased position permits said spring member to force said slide member to contact said plate element and move said cutting member from said first, non-cutting position to said second, cutting position. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A method for creating an incision in tissue comprising the steps of:
providing a surgical instrument including; a tubular body having a distal portion and a proximal portion; an elongated tubular cutting member having a cutting edge, said cutting member being constructed and arranged with respect to said tubular body so as to be longitudinally received within said tubular body for guided longitudinal reciprocal movement therein between a cutting position wherein said cutting edge projects from said distal portion and a non-cutting position wherein said cutting edge is retracted within the tubular body; means for selectively urging said cutting member and thus said cutting edge from the non-cutting position to the cutting position; and a vacuum source coupled to at least one of said tubular body and said cutting member, said vacuum source being constructed and arranged with respect to one of said tubular body and said cutting member so as to generate a vacuum therein; directing the distal portion of the instrument to the tissue so that a blunt end of the distal portion is in contact with a portion of the tissue to be cut; activating said vacuum source so that a vacuum is created at the distal portion of the instrument so as to hold the portion of the tissue to be cut; actuating said urging member so as to move said cutting member from the non-cutting position to the cutting position, thereby causing said cutting edge to project from said blunt end and cut the tissue; and removing the distal portion of the instrument and the cut portion of the targeted tissue from remaining tissue.
Specification