Surgical treatment device
First Claim
1. A biotissue excising instrument comprising:
- a tubular sheath inserted into a body;
a manipulator inserted into the sheath so as to advance and retreat freely through the sheath; and
a treatment portion provided at a leading end of the manipulator and having a loop portion that can be unfolded and contracted to accommodate biotissue to be excised, wherein a slit is formed in a side of a leading end of the sheath to project and sink the loop portion of the treatment portion.
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0 Petitions
Accused Products
Abstract
A biotissue excising instrument according to an embodiment of the present invention includes a tubular sheath inserted into a body, a manipulator inserted into the sheath so as to advance and retreat freely through the sheath, and a treatment portion provided at a leading end of the manipulator and having a loop portion that can be unfolded and contracted to accommodate biotissue to be excised. A slit is formed in a side of a leading end of the sheath to project and sink the loop portion of the treatment portion so that the manipulator is advanced or retreated to laterally project or sink the loop portion out of or into the sheath through the slit to unfold or contract the loop portion, thus excising the biotissue in the loop portion.
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Citations
17 Claims
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1. A biotissue excising instrument comprising:
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a tubular sheath inserted into a body;
a manipulator inserted into the sheath so as to advance and retreat freely through the sheath; and
a treatment portion provided at a leading end of the manipulator and having a loop portion that can be unfolded and contracted to accommodate biotissue to be excised, wherein a slit is formed in a side of a leading end of the sheath to project and sink the loop portion of the treatment portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification