JP2007054249A - Needle-holding tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To suture a suture section even when the suture section is inside of the body and it is inevitable that a needle-holding tool is positioned obliquely with respect to the line of the suture section. <P>SOLUTION: The needle-holding tool 1 is provided with a pair of scissor-like needle-holding pieces 2 crossing with each other at crossing parts 2c, and needle-holding parts 3 of a needle are provided at the distal ends 2a of the needle-holding pieces. At the crossing part 2c of one needle-holding piece, a long hole 5 along a center axis between the pair of needle-holding pieces is formed, and a shaft 6 put through the long hole is fixed to the crossing part 2c of the other needle-holding piece to connect the needle-holding pieces 2 in the state of being movable in a longitudinal direction along the center axis with respect to each other and being openable and closable with a point on the center axis as a fulcrum. On the lower surfaces of the distal ends 2a of the needle-holding pieces, the needle-holding parts 3 having needle-holding surfaces 3a perpendicular to the lower surfaces are turnably fixed to shafts 8. By turning the needle-holding parts 3 by moving the needle-holding pieces 2 in a longitudinal direction, the directions of the needle-holding surfaces 3a are changed, so that the direction of the needle projecting sideways from the distal ends 2a is changed. Even when the needle-holding tool is positioned obliquely relative to a line of the suture section, the needle can be put into the suture section at a right angle for suturing. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a needle holder used in a surgical operation.

  A needle holder used in a surgical operation crosses a pair of hook-like needle pieces provided with a needle holding portion at a distal end portion, and connects the needle piece pieces so that they can be opened and closed at the crossing portion. An inner side surface perpendicular to the flat surface portion of the tip portion of the needle holding piece is formed on the gripping surface of the needle holding portion, and is subjected to roughening such as knurling.

  To sew an incision on the suture site, for example, the surface of the body, hold the proximal end of the arched suture needle with the gripping surface of the needle holder, and the needle will lie below the gripping surface from the tip of the needle piece. Hold the needle so that it protrudes at a substantially right angle in the lateral direction and the needle tip is slightly upward, and the needle is positioned at a right angle with the tip of the needle holder positioned parallel to the incision line. Then, turn the wrist with the needle holder inward and turn the needle point down, put the needle point vertically on one side of the wound wound edge, and circle it in a direction perpendicular to the wound line. Advance the needle while pulling back the wrist so that it draws, and put out the needle tip from the opposite side of the wound edge. Next, hold the needle tip with forceps, remove the needle holder from the needle, twist the wrist inward, change it to the needle tip with the needle holder, rotate the needle while returning the wrist, remove it from the tissue, and insert the needle at the wound edge Pull out the yarn, leaving about a few centimeters of yarn end on the side. Next, the thread that has been pulled out and the remaining thread end are entangled using a needle holder and forceps or a hand, and the thread in which the incision is sewn at a right angle is cut at the end of the knot. This is repeated several times along the incision line to complete the incision suture.

  However, in the case of an incision opened at a suture site in the body, for example, the rectum, the needle holder is inserted into the anus, so the needle holder must be positioned obliquely with respect to the line of the incision. For this reason, a needle protruding at a right angle from the tip of the needle holder is positioned obliquely with respect to the incision line, and this needle is moved to the far side from the anus of the horizontal incision wound edge by movement of the wrist. The current situation is that the incision can only be sewn diagonally by putting it out from the opposite side of the front of the wound.

  Therefore, the object of the present invention is to facilitate the orientation of the grasped needle even when the suture site is in the body and the needle holder must be positioned obliquely with respect to the line of the suture site in the surgical operation. By adjusting, the needle is positioned at a right angle with respect to the line of the suture site, and a needle holder capable of sewing the suture site at a right angle is provided.

  In order to achieve the above object, the present invention is a needle holder for use in a surgical operation, which crosses a pair of scissors-like needle pieces, and a pair of holding needles at the intersection of the one needle piece. A long hole is formed along the central axis between the needle pieces, the shaft inserted through the long hole is fixed to the intersection of the other needle holding pieces, and the pair of needle holding pieces are elongated along the central axis. The needle holding portion having a gripping surface perpendicular to the lower surface is vertically connected to the lower surface of the tip portion of the pair of needle holding pieces. Attached so as to be rotatable around an axis.

  According to the present invention, the hand grasping the proximal end portion of the pair of needle holding pieces of the needle holder is closed, and the proximal end portion of the suture needle is held by the gripping surface of the needle holding portion provided at the distal end portion of the needle holding piece. The needle is held in such a manner that it protrudes laterally, for example, at a right angle from the tip of the needle holder below the holding surface. While holding the needle, if one of the needle holding pieces is shifted in the longitudinal direction with respect to the other by the operation of the hand holding the proximal end, the needle holding portion is rotated and held by the holding surface. The direction of the can be changed, and the angle protruding laterally from the tip of the needle holder can be changed. Therefore, even when the needle holder is oblique to the incision line with respect to the suture site in the body, for example, the rectal incision, the needle is positioned at right angles to the incision line, The incision can be sewn at a right angle by operating the wrist.

  According to the needle holder of the present invention, even when the suture site is in the body and the needle holder must be positioned obliquely with respect to the line of the suture site, the orientation of the grasped needle is easily adjusted. Thus, the needle can be positioned at a right angle with respect to the line of the suture site, and the suture site can be sewn at a right angle.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of the needle holder of the present invention, and FIG. 2 is a cross-sectional view of an intersecting portion of the needle holder.

  As shown in FIG. 1, the needle holder 1 of the present invention includes a pair of scissors-like needle holder pieces 2 connected at an intersection 2c. The distal end portion 2a of the needle holding piece 2 extends shortly from the intersecting portion 2c, and a needle holding portion 3 is provided on the lower surface of the distal end portion 2a to hold the suture needle. The rear end portion 2b of the needle holding piece 2 is formed as a handle that extends long from the intersecting portion 2c and is grasped by a hand. A finger hooking loop 4 is provided at the rear end of the handle 2b.

  A long hole 5 is formed at the intersecting portion 2c of one of the pair of needle pieces 2 along the central axis between the pair of needle pieces 2. As shown in FIG. A shaft 6 having a retaining member 6a is inserted from above, the shaft 6 is passed through a through hole 7 formed in the intersecting portion 2c of the other needle holding piece 2, and exposed to the lower surface side of the lower intersecting portion 2c. The tip 6b of the shaft 6 is crimped to fix the shaft 6 to the lower intersection 2c. As a result, the pair of needle-holding pieces 2 can move in the longitudinal direction along the central axis using the elongated hole 5 inserted through the shaft 6 as a guide, and can be opened and closed with the point where the shaft 6 is located on the central axis as a fulcrum. It is connected to.

  The intersecting portion 2c of the needle piece 2 is thin and is half the thickness of the other portions 2a and 2b, and the pair of needle pieces 2 connecting the intersecting portions 2c has the tip 2a and the handle 2b on the same surface. When the handle 2b is closed, the tip 2a comes into contact with the tip on the inner surface perpendicular to the tip.

  As shown in FIG. 3, the needle holding portion 3 is a short column with a semicircular cross section perpendicular to the flat portion of the tip 2 a of the needle holding piece 2, and the flat portion extending in the longitudinal direction of the needle holding portion 3 is The gripping surface 3a for gripping the suture needle is formed on a rough surface such as knurl. The needle holding portions 3 of the two needle holding pieces are arranged on the lower surface of the distal end portion 2a in a manner in which the gripping surfaces 3a are opposed to each other, It is rotatably attached within the surface of the lower surface. Thereby, the orientation of the gripping surface 3 a can be changed by the rotation of the needle holding unit 3.

  A method for grasping a suture needle by the needle holder of the present invention will be described with reference to FIGS. 4 and 5, (a) is a perspective view showing a tip portion of the needle holder piece, (b) is a back view, and (c) is a front view. In the perspective view showing the tip of the needle holder piece, one needle holder piece is omitted. In order to hold the suture needle 9 with the needle holder 1, the handle 2b of the pair of needle pieces 2 is grasped by hand, the handle 6b is closed with the shaft 6 of the intersecting portion 2c as a fulcrum, and the distal end portion 2a is closed. The gripping surface 3a of the needle holding portion 3 is pressed against the proximal end portion 9a of the needle 9, and the proximal end portion 9a is gripped between the gripping surfaces 3a with an appropriate force.

  In FIG. 4, the needle 9 gripped in this manner protrudes, for example, at a right angle from the distal end portion 2 a of the needle holding piece 2 below the gripping surface 3 a. The needle holding portions 3 of the pair of needle holding pieces 2 are aligned without displacement in the longitudinal direction, and the gripping surface 3 a is positioned substantially parallel to the longitudinal direction of the needle holding piece 2.

  Next, as shown in FIG. 5, the needle-holding piece 2 is moved in the longitudinal direction with the long hole 5 inserted through the shaft 6 of the intersecting portion 2c by the operation by the hand holding the handle 2a while holding the needle 9. When the needle 9 is shifted, the needle 9 protrudes in a posture inclined laterally from the tip 2 a of the needle piece 2. Referring to FIG. 5 (b) showing a back view, the two needle pieces 2 are relatively moved in such a manner that the upper needle piece 2 protrudes and the lower needle piece 2 recedes in FIG. 5 (b). When shifted in the longitudinal direction, the needle holding part 3 is rotated counterclockwise so as to draw a circular arc by a half of the amount of displacement, and the gripping surface 3a is tilted to the left side by the rotated angle, so that the gripping surface 3a The grasped needle 9 protrudes in a posture inclined by the same angle obliquely forward and rightward from the distal end portion 2a.

  The length of the long hole 5 in the intersecting portion 2c of the needle piece 2 is set by adding a margin to the amount of movement of the needle piece 2 necessary for one rotation of the needle 9. Therefore, the needle 9 gripped by the gripping surface 3a can be in any posture from the left and right directions of the distal end portion 2a to the posture in both the front and rear directions.

  In order to sew an incision formed in the rectum, for example, in the rectum, with the needle holder 1 of the present invention, the needle 9 is held with the needle holder 1 facing back and held in that posture. The needle device 1 is inserted into the anus, and the needle 9 is protruded laterally from the distal end portion 2a by the longitudinal movement of the needle holding piece 2 in the anus. The needle holder 1 must be positioned obliquely with respect to the horizontal incision line established in the rectum, but by adjusting the lateral projection angle of the needle 9 from the tip 2a, the needle 9 Can be positioned perpendicular to the line of the incision. Thereby, the needle 9 can be put at a right angle with respect to the line of the incision, and the incision can be sutured at a right angle by the action of the wrist.

It is a perspective view which shows one Example of the needle holder of this invention. It is sectional drawing of the cross | intersection part of the needle holder of FIG. It is a figure which shows the needle holding part of the needle holder of FIG. 1, and is the sectional drawing (a) and back view (b). It is the perspective view (a), back view (b), and front view (c) which show the holding method of the suture needle by the needle holder of FIG. It is the perspective view (a), back view (b), and front view (c) which show the holding method of the suture needle by the needle holder of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Needle holder 2 Needle piece 2a Handle (rear end part) 2b Tip part 2c Crossing part 3 Needle part 3a Gripping surface 5 Long hole 6 Axis 8 Axis 9 Suture needle 9a Base end part

Claims (1)

A needle holder for use in surgery, which intersects a pair of scissors-like needle pieces, and forms a long hole along the central axis between the pair of needle pieces at the intersection of one of the needle pieces The shaft inserted through the elongated hole is fixed to the crossing portion of the other needle holding piece, and the pair of needle holding pieces can be moved in the longitudinal direction along the central axis, and the point on the central axis can be As a fulcrum, the needle holding portion having a needle holding surface perpendicular to the lower surface is attached to the lower surface of the distal end portion of the pair of needle holding pieces so as to be rotatable about a vertical axis. Features a needle holder.

Images