Suture instrument

Abstract

A suture instrument that is inserted into a body and ejects an elongated anchor to which a suture thread that sutures a perforation is connected and which is placed on tissue, including a base that extends from a proximal end on a hand side to a remote end that is introduced to tissue and has flexibility; an anchor holding instrument that is disposed at the remote end of the base, is capable of housing a plurality of the anchors inside, and whose distal end that ejects the anchors is approximately pointed in the direction of the proximal end of the base; a tip position changing mechanism that is provided for changing the tip position of the anchor holding instrument and causes the anchor holding instrument to move in a direction that intersects with the axial line of the lengthwise direction of the base; and a position operation device that operates the tip position changing mechanism at the hand side and operates the tip position of the anchor holding instrument.

1 . A suture instrument that is inserted into a body and ejects an elongated anchor to which a suture thread that sutures a perforation is connected and which is placed on tissue, comprising:
 a base that extends from a proximal end on a hand side to a remote end that is introduced to tissue and has flexibility;   an anchor holding instrument that is disposed at the remote end of the base, is capable of housing a plurality of the anchors inside, and whose distal end that ejects the anchors is approximately pointed in the direction of the proximal end of the base;   a tip position changing mechanism that is provided for changing the tip position of the anchor holding instrument and causes the anchor holding instrument to move in a direction that intersects with the axial line of the lengthwise direction of the base; and   a position operation device that operates the tip position changing mechanism at the hand side and operates the tip position of the anchor holding instrument.   
   
   
       2 . The suture instrument according to  claim 1 , wherein the tip position changing mechanism changes the position by causing the anchor holding instrument to move to a position that is offset from the axial line in the lengthwise direction of the base. 
   
   
       3 . The suture instrument according to  claim 1 , wherein the tip position changing mechanism changes the position by inclining the anchor holding instrument with respect to the axial line in the lengthwise direction of the base. 
   
   
       4 . The suture instrument according to any one of  claims 1  to  3 , wherein the anchor holding instrument is a needle that has at the distal end a sharp tip. 
   
   
       5 . The suture instrument according to any one of  claims 1  to  3 , wherein the distal end of the anchor holding instrument consists of a hollow needle, and the anchors are disposed in the needle. 
   
   
       6 . The suture instrument according to any one of  claims 1  to  5 , further provided with an attraction instrument that attracts the anchors with a magnetic force, wherein the attraction instrument is disposed along the base so as to move freely forward and backward, and the anchors and the attraction instrument are both made from a magnetic body, and one of them is a magnet. 
   
   
       7 . A suture instrument that is inserted into a body and ejects an elongated anchor to which a suture thread that sutures a perforation is connected and which is placed on tissue, comprising:
 a base that extends from a proximal end on a hand side to a remote end that is introduced to tissue and has flexibility;   an anchor holding instrument that is disposed at the remote end of the base, is capable of housing a plurality of the anchors inside, and whose distal end that ejects the anchors is disposed at the remote end side of the base;   a deflection mechanism that is provided for deflecting the tip position of the anchor holding instrument and causes the tip of the anchor holding instrument to deflect from the remote end of the base toward the direction that faces the proximal end; and   a position operation device that operates the deflection mechanism at the hand side and operates the tip position of the anchor holding instrument.   
   
   
       8 . The suture instrument according to  claim 7 , wherein the tip position changing mechanism changes the position by inclining the anchor holding instrument with respect to the axial line in the lengthwise direction of the base. 
   
   
       9 . The suture instrument according to  claim 7  or  8 , wherein the anchor holding instrument is a needle that has at the distal end a sharp tip. 
   
   
       10 . The suture instrument according to  claim 7  or  8 , wherein the distal end of the anchor holding instrument consists of a hollow needle, and the anchors are disposed in the needle. 
   
   
       11 . The suture instrument according to any one of  claims 7  to  10 , further provided with an attraction instrument that attracts the anchors with a magnetic force, wherein the attraction instrument is disposed along the base so as to move freely forward and backward, and the anchors and the attraction instrument are both made from a magnetic body, and one of them is a magnet.