WO2017069012A1 - Porte-aiguille - Google Patents

Porte-aiguille Download PDF

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Publication number
WO2017069012A1
WO2017069012A1 PCT/JP2016/080075 JP2016080075W WO2017069012A1 WO 2017069012 A1 WO2017069012 A1 WO 2017069012A1 JP 2016080075 W JP2016080075 W JP 2016080075W WO 2017069012 A1 WO2017069012 A1 WO 2017069012A1
Authority
WO
WIPO (PCT)
Prior art keywords
needle holder
tip
needle
slit
driving piece
Prior art date
Application number
PCT/JP2016/080075
Other languages
English (en)
Japanese (ja)
Inventor
龍 中楯
伸孝 迎
誠 橋爪
Original Assignee
国立大学法人九州大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 国立大学法人九州大学 filed Critical 国立大学法人九州大学
Priority to JP2017546504A priority Critical patent/JP6850411B2/ja
Publication of WO2017069012A1 publication Critical patent/WO2017069012A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/04—Surgical instruments, devices or methods, e.g. tourniquets for suturing wounds; Holders or packages for needles or suture materials
    • A61B17/06—Needles ; Sutures; Needle-suture combinations; Holders or packages for needles or suture materials
    • A61B17/062—Needle manipulators

Definitions

  • the present invention relates to a needle holder for sewing with an axis perpendicular to the insertion direction of the needle holder.
  • a needle holder having a gripping portion that can be opened and closed at the tip of an elongated shaft is generally used (see FIG. 14). ).
  • a needle holder as shown in FIG. 14A, an arcuate suture needle is grasped so as to be perpendicular to the longitudinal direction of the shaft, and the shaft is rotated about the longitudinal direction, thereby sewing the needle.
  • the needle can be inserted into the body tissue along the arc.
  • Such a needle movement is easy when the target stitching surface is in a direction approximately parallel to the longitudinal direction of the shaft as shown in FIG. 14A, but as shown in FIG. 14B.
  • the stitching surface is in a direction substantially perpendicular to the longitudinal direction of the shaft, the operation is extremely difficult.
  • the needle holder 10 has an operating portion that is grasped by an operator, an elongated hole 64 that is connected to the operating portion at one end and is formed at least along the longitudinal direction at the other end.
  • the needle holding portion 16 is provided so as to be rotatable along the elongated hole 64 with the inner side of the one end portion as a fulcrum, and has an openable / closable holding portion 44c for holding and holding an object (anastomosis needle).
  • an object anastomosis needle
  • Patent Document 2 is a needle holder 1, which includes a first arm turning member 111 having a first holding arm portion 12A and capable of turning around a turning shaft 15, and a second holding arm.
  • a second arm pivoting member 112 having a portion 12B and pivotable about the pivot shaft 15, a first clamping arm driving member 201 for pivoting the first arm pivoting member 111, and the first A second holding arm driving member 202 that rotates the two-arm rotating member 112; a first driving unit 30 that opens and closes the first holding arm portion 12A and the second holding arm portion 12B;
  • a second drive unit 50 for rotating the pair of sandwiching arm units 12.
  • a technique disclosed in Patent Document 3 is disclosed as a technique that enables the suture needle to be rotated about a direction perpendicular to the longitudinal direction of the shaft.
  • the handle portion B of the needle holder is formed in a pistol shape so that the handle portion is positioned below the eye in the line-of-sight direction with respect to the tip holding portion A.
  • a pulley 3 attached to the distal end of the vessel, a needle holder 4 fixed on the pulley, and a slide plate attached to the needle holder and slid back and forth to press and hold the suture needle against the needle holder
  • the handle portion B is provided with handles 16 and 20 for operating the wires 7 1 , 7 2 , and 10 for operating the pulley and the slide plate.
  • Patent Documents 1 and 2 have a high degree of freedom at the tip part, the structure is very complicated, and therefore, there is a problem that much labor and manpower are required for manufacturing.
  • the structure is complicated, the size of the device is inevitably increased, and it is necessary to enlarge the opening in the case of laparoscopic surgery or the like, resulting in a burden on the patient.
  • Patent Document 3 has a simpler configuration with fewer parts compared to the techniques shown in Patent Documents 1 and 2, but a plurality of parts such as a spring plate, a pulley, and a needle holder are included. It is necessary and cannot be said to be sufficiently simplified. Moreover, there exists a subject that a front-end
  • the present invention provides a needle holder capable of rotating a suturing needle about a direction perpendicular to the longitudinal direction of an insertion tube as well as having an extremely simple configuration and improved usability.
  • the needle holder grips the suture needle at the insertion tube and the distal end portion of the insertion tube, and is disposed at the distal end portion so as to be rotatable about a direction perpendicular to the insertion direction.
  • the tip driving piece has a diametrical slit around which a wire is wound and grips the suture needle. The distal end driving piece is fastened with the wire in a state where the suture needle is inserted, and the suture needle is held between the distal end driving piece.
  • the suture needle is grasped at the insertion tube and the distal end portion of the insertion tube, and the distal end portion is arranged so as to be rotatable about a direction perpendicular to the insertion direction.
  • a distal end driving piece provided, and an operation unit for operating the distal end driving piece.
  • the distal end driving piece has a diametrical slit around which a wire is wound and which holds the suture needle.
  • the distal end driving piece is fastened with the wire, and the suture needle is held by the distal end driving piece, so that the direction perpendicular to the insertion direction of the distal end portion of the insertion tube is set.
  • the suture needle can be turned as an axis, that is, the suture surface at a position perpendicular to the insertion direction of the insertion tube tip can be easily sutured.
  • the needle holder according to the present invention includes a rotating pulley disposed in the operation portion so as to be rotatable in the same direction as the tip driving piece, and the wire is disposed between the rotating pulley and the tip driving piece.
  • the tip driving piece slides through the wire according to the turning operation of the turning pulley.
  • the operation portion includes a rotating pulley disposed to be rotatable in the same direction as the tip driving piece, and the wire is connected to the rotating pulley and the tip. Since the tip drive piece slides through the wire in response to the turning operation of the rotating pulley, the tip driving piece is slid through the wire according to the rotation of the rotation pulley.
  • the suture needle can be tightened and rotated simultaneously, and the suture surface at a position perpendicular to the insertion direction of the distal end of the insertion tube can be easily sutured with a simple structure. There is an effect that can be.
  • the needle holder according to the present invention includes a lever that pivotally supports the rotating pulley in the operation portion, and the wire moves the direction opposite to the insertion direction so that the wire tightens the tip driving piece. To do.
  • the operating portion includes a lever that is pivotally supported by the rotating pulley, and the lever moves in a direction opposite to the insertion direction, whereby the wire is Since the tip drive piece is tightened, the suture needle can be fixed to the tip drive piece with a simple lever operation, and the suture needle can be turned with a simple operation by the pivot pulley supported by the shaft. There is an effect.
  • the insertion tube is disposed so as to be rotatable about the insertion direction.
  • the insertion tube is disposed so as to be rotatable about the insertion direction, a suture that is approximately parallel to the longitudinal direction of the distal end portion of the insertion tube. It is possible to easily sew the surface, and it is possible to realize a needle holder having a high degree of freedom with a simple configuration.
  • the slit formed in the tip driving piece is formed in an arc shape along the curve of the suture needle with respect to the diameter direction.
  • the slit formed in the tip driving piece is formed in an arc shape along the curve of the suture needle with respect to the diameter direction.
  • the suture needle can be easily grasped and the burden on the doctor during the operation can be reduced.
  • the slit formed in the tip driving piece is formed at a plurality of different angles in the diameter direction.
  • the tip driving piece is separated from the suture needle during the operation. Even in the case of changing the position, there is an effect that the suture needle can be easily grasped and grasped without being conscious of the rotation angle of the tip driving piece.
  • a slit formed in the tip driving piece is formed from a root portion of the slit to an opening for inserting the suture needle, and the root portion of the slit is the tip driving portion.
  • a spatial region along the end face of the frame is formed.
  • the slit formed in the tip drive top is formed from the root portion of the slit to the opening portion for inserting the suture needle, and the root portion of the slit is Since the space region along the end surface of the tip driving piece is formed, the slit opening / closing operation is smoothed, and the stress of the root portion is diffused to the end surface region of the tip driving piece by the opening / closing operation, resulting in stress concentration. There exists an effect that damage etc. can be prevented.
  • At least the end surface of the tip driving piece to the space region is formed of an elastic body.
  • the slit opening and closing operation can be smoothly performed, There is an effect that the suture needle can be securely held.
  • the tip driving piece is divided by the slit into a first holding part that holds one side of the suture needle and a second holding part that holds the other side of the suture needle, In the first clamping part and / or the second clamping part, the width in the direction perpendicular to the clamping direction of the suturing needle is narrower than other parts.
  • the distal end drive piece has the slit formed between the first holding portion that holds one side of the suture needle and the second holding portion that holds the other side of the suture needle. Since the width in the direction perpendicular to the clamping direction of the suture needle is narrower in the first clamping part and / or the second clamping part than in other parts, the suture needle is grasped. It becomes easy, and there exists an effect that the operativity during operation can be improved.
  • a groove into which the suture needle is fitted is formed in the slit of the tip driving piece.
  • the groove for fitting the suturing needle is formed in the slit of the tip driving piece, it is possible to stably hold the suturing needle, and during the operation. The operability can be improved.
  • the needle holder grips the suture needle at the insertion tube and the distal end portion of the insertion tube, and is disposed at the distal end portion so as to be rotatable about a direction perpendicular to the insertion direction.
  • a tip and a control section for operating the tip drive top wherein the tip drive top has a diametrical slit around which a wire is wound and grips the suture needle. When the slit is closed, the tip driving piece is fastened with the wire to open the slit.
  • the suture needle is grasped at the insertion tube and the distal end portion of the insertion tube, and the distal end portion is arranged so as to be rotatable about a direction perpendicular to the insertion direction.
  • a distal end driving piece provided, and an operation unit for operating the distal end driving piece.
  • the distal end driving piece has a diametrical slit around which a wire is wound and which holds the suture needle. In order to open the slit by tightening the tip driving piece with the wire from the state where the slit of the tip driving piece is closed, the suture needle is rotated about the direction perpendicular to the insertion direction of the insertion tube tip.
  • the stitching surface at a position perpendicular to the insertion direction of the distal end of the insertion tube can be easily sewn, and the slit is closed when not being operated, and the slit is opened only during operation.
  • clamping the needle may be performed only operation (including when Mochikaeru), an effect that usability is very well.
  • a needle holder according to the present embodiment will be described with reference to FIGS.
  • the suture needle is rotated about the vertical direction with respect to the insertion direction. It can be easily sutured.
  • Examples of the operation in which the suture surface is perpendicular to the insertion direction of the needle holder include, for example, the case where the back of the pelvis is sutured, the case where the prostate and uterus are sutured, the case where the esophagus and the intestine are joined, and the nasal cavity
  • the diameter of the insertion tube is preferably 3 mm or less because there are many cases where the operation of the brain is performed via the, and is often used in a very narrow region.
  • the needle holder that satisfies such a condition is realized by miniaturizing by minimizing the number of parts.
  • FIG. 1 is an overall perspective view showing the appearance of the needle holder according to the present embodiment
  • FIG. 2 is an overall perspective view showing the inside of the needle holder according to the present embodiment
  • FIG. It is a sectional side view of a needle device.
  • the needle holder 1 includes an operation part 2 for an operator to operate, a distal end part 3 for grasping a suture needle and performing a suturing operation, and an insertion tube 4 connecting the operation part 2 and the distal end part 3.
  • the operation unit 2 is provided with a lever 5 and a rotation pulley 6 for the operator to control the operation of the distal end portion 3.
  • the operator operates the lever 5 with the index finger and the rotation pulley 6 with the thumb. By performing the operation, the operation of each component of the tip 3 is controlled.
  • the distal end portion 3 has a distal end drive piece 7 that rotates while holding the suture needle 30 to move the suture needle 30 and insert it into the living tissue.
  • a wire 8 to be wound is wound around the rotating pulley 6 through the insertion tube 4.
  • the wire 8 circulates and is connected via the tip drive piece 7, the insertion tube 4, and the rotating pulley 6.
  • the inside of the insertion tube 4 is hollow, and the wire 8 circulates and connects the tip driving piece 7 and the rotating pulley 6 through this internal space. Then, the operation of the rotating pulley 6 is transmitted to the tip driving piece 7 via the wire 8.
  • the tip drive piece 7 When the lever 5 is pulled in the direction opposite to the insertion direction, that is, in the direction of the operator, the tip drive piece 7 is tightened from the periphery by the wire 8 while the tip drive piece 7 is drawn into the insertion tube 4 together with the wire 8. .
  • the suture needle 30 can be fixed to the distal end drive piece 7.
  • the suture needle 30 is moved by rotating the tip drive piece 7 about the direction perpendicular to the insertion direction of the insertion tube 4 while holding and fixing the suture needle 30 with the tip drive piece 7. It becomes possible to do.
  • FIG. 4 is an enlarged view showing the structure of the distal end portion 3 in the needle holder according to the present embodiment.
  • the tip drive piece 7 is formed in a substantially cylindrical shape, and a groove portion 9 for winding the wire 8 is formed along the circumferential edge thereof.
  • a slit 10 is formed so as to divide the cylinder in the diameter direction of the cylinder of the tip drive piece 7.
  • the slit 10 is a space for holding the suture needle 30 and is formed with a width larger than the diameter of the suture needle 30.
  • the distal end portion of the insertion tube 4 is formed with an arc-shaped recess 11, and the arc portion of the recess 11 and the arc portion of the cylindrical side surface of the tip drive piece 7 have the same curvature (or “the curvature of the arc portion of the recess 11. " ⁇ " Curvature of the arc portion of the cylindrical side surface of the tip driving piece 7 "), the arc portions can be in close contact with each other. That is, the tip drive piece 7 is easily slid in a state where the tip drive piece 7 and the tip portion of the insertion tube 4 are in close contact with each other. Further, one wire 8 extending from the distal end portion through the insertion tube 4 from the operation portion 2 is wound along the groove portion 9 of the distal end drive piece 7 and again passes through the insertion tube 4 to the operation portion 2. It is fixed with.
  • wire 8 may be wound around the periphery of the tip drive piece 7 without forming the groove 9 in the tip drive piece 7.
  • FIG. 5 is a diagram showing an operation when the suture needle is gripped.
  • both the wire 8a extending in the insertion direction and the wire 8b wound around the tip drive piece 7 and returned to the insertion tube 4 are drawn simultaneously by operating the operation unit 2 (arrows).
  • the wire 8 wound around the distal end driving piece 7 tightens the distal end driving piece 7 from the peripheral portion thereof, and the width of the slit 10 is reduced (slit 10). Tightening force acts in the direction of closing.
  • the suture needle 30 is gripped by the slit 10 by tightening the wire 8.
  • FIG. 6 is a diagram showing an operation when the suture needle is moved.
  • one wire 8 a extending in the insertion direction and the other wire 8 b drawn from the distal end portion of the insertion tube 4 to the operation portion 2 side with the distal end driving piece 7 tightened by the wire 8.
  • the tip drive piece 7 can be slid to move the suture needle 30.
  • one wire 8a is sent out in the insertion direction (feeds out in the direction of arrow a), and at the same time, the other wire 8b is drawn into the surgeon side (drawn in the direction of arrow b).
  • the frictional force between the wire 8 and the tip drive piece 7 acts, and the tip drive piece 7 rotates.
  • the suture needle 30 is moved by rotating the tip drive piece 7 while securely holding the suture needle 30 with the tip drive piece 7, so that the suture surface is positioned perpendicular to the insertion direction. Can be easily sutured.
  • FIG. 7 is a view showing the structure of the operation unit 2 in the needle holder according to the present embodiment
  • FIG. 8 is a side view of the lever and the rotating pulley in the needle holder according to the present embodiment
  • FIG. 9 is the embodiment. It is a rear view of the lever and rotation pulley in the needle holder which concerns on a form.
  • the operation unit 2 includes a lever 5 that is pivotally supported by a cover 11 that is a casing in the operation unit 2 of the needle holder 1, and a rotating pulley 6 that is pivotally supported by the lever 5.
  • the cover 11 and the lever 5 are pivotally supported by fitting an internal recess 12 formed inside the cover 11 in the vicinity of the upper end portion of the lever 5 and a convex portion 13 formed at the upper end portion of the lever 5.
  • the lever 5 is disposed so as to be driven in the insertion direction and the operator side direction opposite to the insertion direction with the portion 13 as an axis.
  • a notch 14 for fitting the rotating pulley 6 is formed in the upper part of the lever 5, and the center of the rotating pulley 6 is pivotally supported by the shaft 15 of the lever 5 by the notch 14. Yes.
  • the rotating pulley 6 is fixed only to the lever 5 and is not fixed to the cover 11. That is, the rotation pulley 6 is operated to follow the lever 5 while being supported by the shaft portion 15 corresponding to the operation of the lever 5.
  • the wire 8 is wound around the wire slit 16 of the rotating pulley 6.
  • One wire 8 wound around the distal end drive piece 7 and drawn into the insertion tube 4 passes through the insertion tube 4 to the wire slit 16, is wound around the wire slit 16, and is introduced into the insertion tube 4 again.
  • the tip drive piece 7 is connected to the wire 8 wound around the tip drive piece 7 and circulates.
  • the rotation pulley 6 follows the operation of the lever 5 while being supported by the shaft portion 15 in accordance with the operation. Move in the direction of the surgeon.
  • the wire 8 is also pulled in the operator side direction.
  • the wire 8 wound around the tip driving piece 7 is drawn into the insertion tube 4 and tightens the tip driving piece 7 from the peripheral edge.
  • the wire 8 tightens the distal end drive piece 7 from the peripheral edge, so that the width of the slit 10 acts in the closing direction, and the suture needle 30 can be gripped by the slit 10.
  • the wire 8a and the wire 8b are opposite to each other with the rotation of the rotation pulley 6.
  • the wire 8a moves to the insertion direction side and the wire 8b Operates in the direction of the operator opposite to the insertion direction.
  • the wire 8b operates in the direction of insertion and the wire 8a operates in the direction of the operator opposite to the insertion direction.
  • the suture needle 30 can be rotated about the direction perpendicular to the insertion direction of the distal end portion of the insertion tube 4, that is, the insertion tube 4. It is possible to easily sew the stitching surface at a position perpendicular to the insertion direction of the distal end portion.
  • miniaturizing the parts with a very small number of parts it is possible to simplify the structure of the entire device, achieve miniaturization, and minimize the burden on the patient.
  • the suture needle 30 can be tightened and rotated simultaneously, and is perpendicular to the insertion direction of the distal end portion of the insertion tube 4 with a simple structure.
  • the stitching surface at the position can be easily stitched.
  • the suture needle 30 can be fixed to the tip drive piece 7 by a simple lever operation, and the suture needle 30 can be rotated and moved by a simple operation by the pivot pulley 6 supported by the shaft. it can.
  • the needle holder according to the present embodiment will be described with reference to FIG.
  • the needle holder according to the present embodiment is a modification of the tip driving piece in the needle holder according to the first embodiment, and improves the degree of grasping of the suture needle.
  • the description which overlaps the said 1st Embodiment is abbreviate
  • FIG. 10 is a view showing the slit shape of the tip driving piece in the needle holder according to the present embodiment.
  • the shape of the slit 10 of the tip drive piece 7 shown in this embodiment is an arc.
  • the suturing needle 30 for inserting a living tissue is usually arcuate and moves while rotating. Therefore, when the shape of the slit 10 of the tip driving piece 7 is linear when viewed from the cylindrical axis direction of the tip driving piece 7, the arc surface of the suture needle 30 (formed by an arc when the slit is tightened).
  • the surface may be gripped so as to be perpendicular to the insertion direction (in a direction in which the needle moves by rotating the insertion direction as an axis).
  • the slit 10 of the tip drive piece 7 is formed into an arc shape when viewed from the cylindrical axis direction of the tip drive piece 7 as shown in FIG.
  • the suture needle 30 can be firmly held in a fixed direction along the arc of 30.
  • the shape of the slit 10 of the tip driving piece 7 is formed in a cross shape when viewed from the cylindrical axis direction of the tip driving piece 7, so that the suture needle 30 is formed on the tip driving piece 7.
  • the angle that can be grasped by the slit 10 is two, and it becomes possible to grasp the state of the rotational angle of the tip drive piece 7 without much awareness when grasping the suture needle 30 during the operation.
  • each slit may be formed in an arc shape as shown in FIG. 10 (B).
  • FIG. 11A is an overall side view of the needle holder according to the present embodiment
  • FIG. 11B is an arrow view when viewed from the arrow a in FIG. ) Is an arrow view when viewed from the arrow b in FIG.
  • the entire side view of FIG. 11A is the same as the side view shown in FIG.
  • the slit shape of the tip drive piece 7 is intentionally formed in a straight line when viewed from the columnar axis direction of the tip drive piece 7. Then, the suture needle 30 is gripped so that the arc surface is perpendicular to the insertion direction. In this state, when the distal end portion of the insertion tube 4 is rotated about the insertion direction, the stitching surface that is approximately parallel to the insertion direction can be stitched.
  • the distal end portion of the insertion tube 4 may be rotated by the operator by rotating the needle holder 1 itself with the insertion direction as an axis, or a pulley that rotates with the insertion direction as the axis in the operation unit 5 is provided.
  • a mechanism that rotates the distal end portion of the insertion tube 4 about the insertion direction in conjunction with the rotation of the pulley may be provided.
  • a stopper may be provided so that the rotation of the distal end portion of the insertion tube 4 stops at less than 360 degrees, preferably 180 degrees or less, so that the wires 8a and 8b do not get entangled.
  • the needle holder according to the present embodiment it is possible to easily sew a suture surface that is approximately parallel to the insertion direction of the insertion tube (longitudinal direction of the distal end portion of the insertion tube).
  • a needle holder with a high degree of freedom can be realized with a simple configuration.
  • the insertion tube 4 may be made of a material that can be flexibly bent, and is preferably a metal coil tube that is flexible in the bending direction and has high rigidity with respect to expansion and contraction in the axial direction. It may be formed by.
  • a surgical thread may be used for the wire 8 for the wire 8.
  • FIG. 12 (A) is an overall perspective view of the tip drive top of the needle holder according to the present embodiment
  • FIG. 12 (B) is an arrow view when viewed from the arrow a in FIG.
  • FIG. 12C is an arrow view when viewed from the arrow b in FIG.
  • the slit 10 is formed in the distal end drive piece 7, and this slit 10 is formed from the root portion 122 in the vicinity of the end surface 121 of the distal end drive piece 7 to the opening 123 that sandwiches the suture needle 30. .
  • a space region 124 is formed in the root portion 122 along the end surface 121.
  • a thin plate-like flat portion 125 is formed on the end surface 121 by the space region 124.
  • the flat portion 125 is formed of an elastic body and smoothly opens and closes the slit 10 with an elastic force (the operation of closing the slit 10 by tightening the elastic force acting in the opening direction of the slit 10 with the wire 8). ) And the stress on the root portion 122 that accompanies the opening / closing operation of the slit 10 is dispersed by the flat surface portion 125, and durability can be increased.
  • the distal end drive piece 7 is divided into a first clamping part 126 and a second clamping part 127 by the slit 10, and the first clamping part 126 and / or the second clamping part 127 are suture needles.
  • the width for pinching is narrower than other places. That is, by narrowing the width of the first sandwiching portion 126 and / or the second sandwiching portion 127, a fine operation can be performed and the suture needle can be easily grasped.
  • one or more grooves 128 for fitting the suture needle are formed in the slit 10 in a direction perpendicular to the rotation axis of the tip drive piece 7. Yes.
  • the needle holder according to the present embodiment will be described with reference to FIG.
  • the needle holder according to the present embodiment has a structure in which the slit of the tip driving piece is closed without any operation, and the slit is opened only when tightened with a wire. That is, during the operation, the operation is performed only when the suture needle is grasped, and the state in which the suture needle is held is not operated, so that the operability is improved and the operation is facilitated.
  • FIG. 13 is a view showing the structure of the tip driving piece of the needle holder according to the present embodiment.
  • 13A is an overall perspective view of the tip drive top
  • FIG. 13B is an arrow view when viewed from an arrow a in FIG. 13A
  • FIG. 13C is FIG. It is an arrow view at the time of seeing from the arrow b of (A).
  • the slit 10 is closed as shown in FIG. That is, if the suture needle is grasped, it can be stably held. And when tightening with a wire, the 1st clamping part 126 and the 2nd clamping part 127 are separated by the clamping force, and a suturing needle is inserted between them.
  • the suture needle When the suture needle is inserted, the wire is released from the tightening state, and the operation state is changed. In the non-operation state, the suture needle can be stably held by the elastic force of the flat portion 125, and the operability of the operation can be improved.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Surgery (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Surgical Instruments (AREA)

Abstract

L'invention concerne un porte-aiguille qui permet à une aiguille de suture de tourner autour de l'axe qui est perpendiculaire à la direction longitudinale d'un tube d'introduction, qui a une configuration extrêmement simple, et qui améliore la facilité d'utilisation. Le porte-aiguille est pourvu : d'un tube d'introduction 4; d'une couronne d'entraînement de pointe 7 qui maintient une aiguille de suture 30 au niveau de la pointe du tube d'introduction 4 et est disposée de façon à pouvoir tourner autour de l'axe qui est perpendiculaire à la direction d'introduction au niveau de la pointe; et d'une partie de manipulation 2 pour manipuler le déplacement de la couronne d'entraînement de pointe 7. La couronne d'entraînement de pointe 7 présente une fente 10 dans la direction diamétrale qui maintient l'aiguille de suture 30, et un fil est enroulé autour de la périphérie de la couronne d'entraînement de pointe 7. Avec l'aiguille de suture 30 introduite dans la fente 10, la couronne d'entraînement de pointe 7 est fixée par le fil 8, et l'aiguille de suture 30 est maintenue par la couronne d'entraînement de pointe 7.
PCT/JP2016/080075 2015-10-21 2016-10-11 Porte-aiguille WO2017069012A1 (fr)

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JP2017546504A JP6850411B2 (ja) 2015-10-21 2016-10-11 持針器

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JP2015-207187 2015-10-21
JP2015207187 2015-10-21

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Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN110720960A (zh) * 2019-11-17 2020-01-24 江琴 用于空间受限手术的翻转式持针器

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JPH0488917U (fr) * 1990-10-23 1992-08-03
US5628757A (en) * 1992-02-04 1997-05-13 Hasson; Harrith M. Surgical instrument for holding a needle
JP2005237397A (ja) * 2004-01-27 2005-09-08 Olympus Corp 外科用処置具

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JPH0642155Y2 (ja) * 1990-05-11 1994-11-02 三笠技研工業株式会社 ダクト用たわみ継ぎ手

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