Medical suture and ligature instrument and medical suture and ligature tool
AssigneeOlympus Corporation
InventorsSatoshi Miyamoto, Norio Onishi
Life of this patent
Estimating the term…
Abstract
A biological tissue is sutured or ligatured, a suture and ligature member such as a ligature wire is cut, and then a holding member is reliably recovered from the body. In a holding member of a medical ligature tool, a protrusion is disposed between distal lateral holes, and proximal lateral holes, so that it protrudes outward in a diameter direction thereof. On the other hand, a concave portion is formed in the inner periphery of a cutting member. When the cutting member is extended to cut a ligature wire, the concave portion is fitted to the protrusion to allow the holding member to engage the cutting member.
Claims13
A medical suture and ligature instrument comprising:
- an insertion section which is inserted into a body and which has a distal end, a proximal end, and an elongated axis;
- a cutting member which has a first engaging portion at an inner periphery surface, a cutting edge, and which is disposed to be movable relative to the insertion section;
- a handle operating section which is disposed on the proximal side of the insertion section and which an operator operates;
- an operation unit which includes the insertion section, the cutting member, and the handle operation section;
- and
- a medical suture and ligature tool which is disposed on the distal side of the operation unit and which is capable of suturing or ligaturing a biological tissue,
- the medical suture and ligature tool including:
- a flexible suture and ligature member;
- and
- a holding member which has a holding portion for holding the suture and ligature member in a path along which the cutting member moves so as to cut the suture and ligature member by the use of the cutting member,
- the holding member including a second engaging portion which engages with the cutting member so as to be capable of pulling the holding member out of the body with the operation unit after the cutting member cuts the suture and ligature member.
Dependencies are inferred from the claim text.