KR101601911B1 - Treatment device for endoscope - Google Patents

Abstract

The present invention relates to an endoscope comprising: an insertion part inserted into a channel of an endoscope, the insertion tube having a length of wire having a connection port at a distal end thereof, A clip having a pair of clamp pieces bent at their tips facing each other and having their lengths crossing each other, a retaining ring inserted so as to be engaged with the clip at the center of the length thereof, and a first connector connected to the clip at one end And a second connection port connected to the connection port is provided at the other end to connect the clip and the connection port, and a clip connection member connected to the clip is inserted and the connection port is connected to the clip connection member, A clip portion including a clip stopper having an inner hole guided therein; And a second accommodating portion having a first accommodating portion in which the clip is disposed and a clip stopper in communication with the first accommodating portion and in which the clip connecting member is inserted is disposed, and a clip stopper disposed in the second accommodating portion, And a cartridge accommodated in the second receiving portion to receive the clip portion, wherein the cartridge is inserted through the inner hole, and the clip connecting body and the connection port are connected to each other The retaining ring contacting the second hook at the time of detaching the clip from the cartridge due to the backward movement of the connection port, So as to be located forward of the intersection where the pieces of the forceps are intersected with each other.

Description

{TREATMENT DEVICE FOR ENDOSCOPE}

More particularly, the present invention relates to a treatment instrument for use in endoscopic surgery, and more particularly, to a medical instrument which can simplify and simplify the overall structure to reduce the manufacturing cost, enable precise nipping of the body tissue as a minute force, And can reduce the time required for the endoscopic treatment instrument.

Recently, endoscopic treatment endoscopy has been recognized as an important field in the field of digestive medicine. Therapeutic endoscopy using endoscopes, that is, endoscopic treatment using an electron microscope, has been widely used for the miniaturization of electronic devices, It is evolving with various diagnoses through channel, development of treatment technology and skill of doctor's skill.

For example, in the past, gastric cancer or colorectal cancer was relied on surgical procedures. However, in recent years, endoscopic submucosal dissection (ESD) has been performed through a treatment instrument inserted into a working channel provided with an endoscope, ), The endoscopic treatment rate of early gastric cancer or early colorectal cancer is increasing clinically by performing diagnosis and treatment at the same time.

Various kinds of treatment tools are used for the treatment tools inserted through the working channel of the endoscope during endoscopic submucosal dissection or endoscopic mucosal resection (EMR).

In other words, the treatment tool is connected to the treatment body constituting the treatment tool and inserted into the working channel provided in the endoscope, and the treatment tool is used to enter the body. Usually, the knife used for the mucosal resection of the tissue , A core regulator (coagulator) used for hemostasis in the course of mucosal resection and the like, and a needle for injecting the drug necessary for injecting saline or the like as a means for inflating the tissue to provide ease of ablation. And injection of a washer fluid for ease of securing a visual field due to bleeding and the like.

Korean Patent Registration No. 10-1340661 (Feb. 13, 2013) discloses an insertion tube in which a wire having a connection port is disposed in the inner hole so as to be longitudinally displaceable in the longitudinal direction, and is inserted into the channel of the endoscope, A clip holder which is inserted into a rear end of a pair of clips which are crossed with each other to form a coupling hole to be connected to the connection port and a clip holder which is free from the outer surface of the clip holder, A clip portion having a guide tube assembled to the clip holder so as to correspond to the opened elastic piece, and a clip accommodating portion in which the pair of the clips are disposed, the pair of shrinkable clips communicating with the clip accommodating portion are guided And a cartridge having a clip stopper disposed at an exit of the guide path to receive the clip portion, Discloses an endoscopic instrument for a treatment tool to which a connection force of a connection port and a coupling section of a wire is given by an external force transmitted to a clip through an elastic piece of a clip holder in contact with an inner surface of an insertion tube to be inserted into a clip stopper have.

However, the clips and cartridges provided in such a conventional endoscopic instrument for treatment instrument have a complicated overall structure and a large number of constituent parts, which has a limitation in reducing the manufacturing cost.

Particularly, since the inside of the cartridge must have a rod member having an outer diameter smaller than the inner diameter of the guide path, and having a rod member having a predetermined length in which the guide pipe separated from the pair of clips is inserted in the guide path, There is a problem in that it is difficult to separate and remove the clip from the cart, and it is difficult for the unskilled person to separate the clip.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems and it is an object of the present invention to provide an apparatus and a method for manufacturing the same, which can simplify and simplify the overall structure to reduce manufacturing cost, And a clips can be attached by one-touch, thereby shortening the procedure time and providing an easy-to-use endoscope treatment instrument.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, unless further departing from the spirit and scope of the invention as defined by the appended claims. It will be possible.

In order to accomplish the above object, the present invention provides an endoscopic instrument comprising: an insertion part inserted into a channel of an endoscope, the insertion tube having a length of wire having a connection port at a distal end thereof arranged in the inner cavity so as to be longitudinally movable back and forth; A clip having a pair of clamp pieces bent at their tips facing each other and having their lengths crossing each other, a retaining ring inserted so as to be engaged with the clip at the center of the length thereof, and a first connector connected to the clip at one end And a second connection port connected to the connection port is provided at the other end to connect the clip and the connection port, and a clip connection member connected to the clip is inserted and the connection port is connected to the clip connection member, A clip portion including a clip stopper having an inner hole guided therein; And a second accommodating portion having a first accommodating portion in which the clip is disposed and a clip stopper in communication with the first accommodating portion and in which the clip connecting member is inserted is disposed, and a clip stopper disposed in the second accommodating portion, And a cartridge accommodated in the second receiving portion to receive the clip portion, wherein the cartridge is inserted through the inner hole, and the clip connecting body and the connection port are connected to each other The retaining ring contacting the second hook at the time of detaching the clip from the cartridge due to the backward movement of the connection port, Is moved forward so as to be located forward of the intersection point where the clamp pieces of the end effector cross each other. The.

Preferably, the retaining ring is pushed in such a way that the retaining ring abuts the first hook and remains in the pinched state so that the retaining ring is positioned forward of the intersection where the pair of clamp pieces cross each other.

Preferably, each of the pair of clamping pieces includes a clamping plate having a predetermined length bent at one end thereof, a crossing plate extending a predetermined length from the other end of the clamping plate at a predetermined angle, and a pair of crossing plates, And a connecting plate bent and deformed to generate an elastic force while being connected.

Preferably, the clamping plate and the crossing plate have a width that is relatively larger than an inner diameter of the clamping ring so as to restrict the jarring movement of the clamping ring toward the clamping plate, Respectively.

Further, preferably, the cross plate and the connecting plate are provided with a width that is relatively larger than the inner diameter of the stationary ring to prevent the stationary ring from separating away from the connection plate, Respectively.

Preferably, the first connector includes a first slit that is elastically opened when the connection plate is inserted at a rear end of the clamp, and a first latch hole that is engaged with the connection plate.

Preferably, the second connector includes a second slit that elastically flares up when the connection port enters, and a second engagement hole in which the connection port is engaged.

Preferably, the cartridge includes a first partitioning lid and a second partitioning lid to form the first accommodating portion and the second accommodating portion, and the first hook has a cut-away surface formed on the outer surface of the first and second partitioning lids, And a first protruding protrusion protruded from the free end of the first resilient piece and interfering with the retaining ring that elastically contacts the outer surface of the clip stopper or moves backward together with the clip do.

Preferably, the cartridge includes a first partitioning lid and a second partitioning lid to form the first accommodating portion and the second accommodating portion, and the second hook is provided on the outer surface of the first and second partitioning lids, And a second protrusion protruding from the free end of the second resilient piece and interfering with the retaining ring moving backward together with the clip.

Preferably, the inserting portion is provided with a pressing body that is press-fitted into the inner hole of the clip stopper when the clip connecting body is engaged with the connection section.

More preferably, the inserting portion includes a gripping member which is integrally connected to a rear end of the pressing body and is disposed on an outer surface of the wire, so that the user grips the pressing stopper when the pressing body is inserted into the inner hole of the clip stopper.

The present invention as described above has the following effects.

(1) The clip stopper is disposed in the second receiving portion of the cartridge together with the clip connector connected to the clip, and the connection port provided at the tip of the wire is inserted through the inner hole of the clip stopper, It is possible to naturally connect the clip connecting body to the connection port that enters through the fixed clip stopper. Therefore, the clip disposed in the first accommodating portion of the cartridge is switched to the pinch state and the pinch state is maintained by the retaining ring It is possible to perform the operation of separating and withdrawing the cartridge from the cartridge to the outside easily and quickly.

(2) a fixing ring located at an intersection where the cross plates of the clips intersect with each other, and a first and a second pair of the first and second fixing members, respectively, in the process of moving the clip connecting body connected to the clip through the second accommodating portion of the cartridge by the pulling force of the wire connected to the connecting port, 2 hooks are sequentially brought into contact with each other, the retaining ring is pushed toward the distal end side of the clip so as to keep the clipped state of the clipped clip as it enters the second accommodating portion. Therefore, And can be performed quickly.

(3) The overall construction of the clip portion and the cartridge can be simplified, and the number of components can be reduced, thereby reducing manufacturing cost.

(4) Since the clip portion inserted with the insertion portion into the endoscope channel during the procedure can more finely sandwich the human body with the clips of the clip, the endoscopic procedure can be performed accurately and stably.

FIGS. 1A and 1B are external views showing an endoscopic treatment instrument combined with a cartridge according to a preferred embodiment of the present invention.
2 is an exploded perspective view showing an endoscopic instrument 10 according to a preferred embodiment of the present invention.
3 is a perspective view showing a clip unit employed in an endoscopic instrument 10 according to a preferred embodiment of the present invention.
FIGS. 4A to 4D are operational states showing a state in which a clip unit coupled with a coupling member used in an endoscopic treatment instrument apparatus according to a preferred embodiment of the present invention is detached from a cartridge.
5A to 5E are operation states showing the use state of the clip portion separated from the cartridge used in the endoscopic treatment instrument according to the preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may obscure the subject matter of the present invention.

The same reference numerals are used for portions having similar functions and functions throughout the drawings.

In addition, in the entire specification, when a part is referred to as being 'connected' to another part, it may be referred to as 'indirectly connected' not only with 'directly connected' . Also, to include an element does not exclude other elements unless specifically stated otherwise, but may also include other elements.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

An endoscope treatment instrument device 100 according to a preferred embodiment of the present invention includes an insertion portion 110, a clip portion 120, and a cartridge 130.

The inserting unit 110 includes an insertion tube 111 having a predetermined length as a hollow tube, a wire 112 having a predetermined length, which is an operation wire inserted and retracted back and forth by an external force through an inner hole of the insertion tube, And is inserted into the channel of the endoscope during the procedure.

 The insertion tube 111 is made of a generally flexible material so as to naturally curve along a curved portion formed in the insertion portion of the endoscope and is advanced to an end portion of the insertion tube 111 corresponding to the clip portion 120 A wire 112 separated from the connection port by a predetermined distance is integrally formed with a clip stopper 127 (to be described later) which is formed in a substantially cylindrical shape. And an abutting member 114 which is press-fitted into the inside of the pressing member 114.

The insertion tube 111 is preferably longer than a length through which the treatment instrument insertion channel of the endoscope can be inserted. The compression body 114 is inserted into the clip stopper 127 through the inner end of the clip stopper 127 It is preferable to form an inclined surface having a small outer diameter at a tip portion thereof so as to facilitate entry.

The inserting portion 110 is provided at the rear end of the pressing body 114 so as to prevent the user from grasping while easily grasping the user's hand in handling the wire for pushing the pressing body into the inner hole of the clip stopper 127 And at least one gripping member (112a) integrally connected at its distal end and disposed on an outer surface of the wire.

The gripping member 112a is formed on the outer surface of the distal end of the wire, and the distal end of the gripping member 112a is made of metal It is preferable that the wire is welded to the rear end of the pressing body having an outer diameter larger than the outer diameter of the wire so as to prevent wire breakage or bending deformation which may occur in direct welding with the wire made of the material.

In this state, the user pushes the pressing member 114 together with the connection port 113 to the clip stopper (not shown) in a state in which the user grasps and securely holds the holding member 112a integrally connected to the rear end of the pressing member 114 with a finger 127 can be performed more easily and quickly.

The clip portion 120 is received in the cartridge 130 including the clip 121, the fixing ring 123, the clip connector 125 and the clip stopper 127, Is detached from the cartridge in the connected state, and then inserted into the endoscope channel so as to grasp and remove the procedure site.

The clip 121 includes a pair of clamping pieces 121a and 121b whose front ends are bent and which are substantially perpendicular to each other and are crossed with each other. The pair of clamping pieces 121a and 121b are bent A pair of intersecting plates 122b intersecting each other with a predetermined length extending from the other end of the catching plate 122a by a predetermined angle and having a predetermined length and having a toothed surface 122e; And a connecting plate 122c which is bent and deformed so as to have an elastic force while integrally connecting one end of the connecting plate 122c.

The clips 121 are engaged with each other at the time of the closing operation according to the proximity between the clips 121a and 121b which have been spread outwardly so as to generate gripping force for removing a part of the human body tissue through the endoscope, It is preferable to form serrations 122e facing each other at each end of the plate.

A fixing ring 123 (not shown) is provided at a boundary area between the catch plate 122a and the cross plate 122b, which is pivoted toward the catch plate 122a, which is opened when the clip of the clip, which has fanned outward by wire pulling operation, The first engaging protrusion 122e having a width larger than the inner diameter of the retaining ring 123 and interfering with the retaining ring 123 is protruded outwardly .

It is preferable that the catching plate 122a is formed in a substantially arcuate shape so as to prevent damage to the inner surface of the channel due to frictional resistance upon entry into the endoscope channel having a substantially circular hole cross section.

In addition, in the boundary region between the intersecting plate 122b and the connecting plate 122c, the fixing ring 123 located at the intersection where the intersecting plates 122b intersect with each other is prevented from being separated and separated toward the connecting plate And a second locking protrusion 122f protruding outwardly from the fixing ring 123, the width of which is relatively larger than the inner diameter of the fixing ring 123 and is interfered with by the fixing ring 123.

Here, the width of the cross plate 122b is set such that the pair of the clamp pieces 121a and 121b can be elastically opened and closed in a state in which the width of the clamp plate facing each other is minimized. It is preferable that it is provided with a size that is approximately one-half of the size of the catching plate 122a.

The fixing ring 123 is pivotally moved toward the tip of the clip so as to maintain the clip 121 of the pair of the clamp pieces 121a and 121a or is held in the center of the clip, Respectively.

The fixing ring 123 is located at the intersection of the intersecting plates intersecting with each other, and is moved forward of the clip which is closed when the connection port is retracted, thereby fixing the pair of clamps.

The clip connector 125 has a first connector 125a formed at one end thereof so that the rear end of the clip 121 is resiliently inserted to be difficult to separate and separate from the clip connector 125. The connector 113 is elastically inserted And a second connection port 125b connected to the second connection port 125b so as to be separated and released by an external force of a predetermined intensity.

The first connector 125a includes a first slit 124a which is elastically opened when the connecting plate 122c provided at the rear end of the first and second clamping pieces 121a and 121b is inserted and the connecting plate 122c The first slit 124a is pivoted when the connecting plate 122c is disposed in the first latching hole 124b so that the first slit 124a is separated from the first latching hole 124b, So that the connection state between the clip and the clip connecting body is maintained.

The second connection port 125b has a second slit 124c which is opened when the connection port 113 having a conical section is forcibly opened. The second connection hole 124d, into which the connection port 113 forcibly entered, And the second slit 124c is elastically restored when the connection port is disposed in the second locking hole 124d to prevent separation and release of the connection port, Thereby maintaining the connection state.

Here, the second latching hole 124d is formed in substantially the same cross-sectional shape as the cross-section of the connection port 113 which is engaged with the second latching hole 124d, and a part of the outer surface of the connection port is exposed to the outside, As shown in Fig.

The clip stopper 127 penetrates the inner hole 127a so that the clip connector 125 connected to the clip 120 is inserted into the tip of the wire when the wire is retracted, And a hollow tube member having a predetermined length.

An operator holding the gripping member of the wire is provided at the inner hole 127a of the clip stopper 127 so that the rear end of the clip connector 125 and the connection port 113 are connected to each other And the clip connector connected to the connection port is guided in a reverse direction when the wire is retracted.

Here, the inner hole 127a may form an inner step to interfere with the stopper 125c protruding from the outer surface of the clip connector 125 when the clip connector 125 is guided in the reverse direction.

The cartridge 130 includes a clip unit 120 including a clip unit 125 connected to the clip 121 and a clip stopper 127 having a rear end inserted into the clip unit 125, Receptive receptors

The cartridge 130 is provided with a first receiving portion 131 in which the clip 121 composed of the pair of the clamp pieces 121a and 121b is disposed in a state of being opened outward, And a second receiving portion 132 in which the clip connecting body 125 and the clip stopper 127 are continuously arranged in a straight line and accommodated therein.

The first receiving portion 131 is formed of a substantially rhombic receiving space having a contact guide surface 131a inclined so that the catching plate 122a constituting the pair of catching pieces 121a and 121b is in contact with each other in an open state .

The contact guide surface 131a formed in the first accommodating portion 131 is formed as an inclined surface in which the passage is gradually reduced toward the second accommodating portion 132. Accordingly, the pair of clamp pieces 121a, 121b can be smoothly switched from the open state to the closed state by moving into the second accommodating portion 132 and moving in contact with the contact guide surface when the connection port 113 connected to the clip connector is pulled.

At this time, the contact guide surface 131a may be formed with a protruding protrusion 131b having an arc-shaped cross section so as to reduce frictional resistance between the pair of clamp pieces which are switched from the open state to the closed state.

The second receiving portion 132 is provided with a clip connecting body 125 connected to the clip 121 which has been turned into the rimmed state and the inner disposition of the clip stopper 127 and the easy withdrawal of these members due to the pulling force of the wire. It is preferable to provide a circular hole having a predetermined length.

The cartridge 130 has a first hook 133 for temporarily fixing the clip stopper 127 by elastic contact with an outer surface of the clip stopper 127 disposed at the second receiving portion 132, The first hook 133 and the second hook 134 adjacent to the first hook 133 are provided on the outer surface corresponding to the second accommodating portion 132.

The connection port 113 that is inserted through the inner hole of the clip stopper 127 is connected to the clip connection member 125 disposed in the second accommodation portion 132, When the connection port is moved back to the right side in the drawing by the pulling force of the wire connected to the operation handle so that the entire clip portion 120 is pulled out from the inside of the cartridge 130, the cross plate 122b of the clip The stationary ring 123, which is located at the intersection with each other, is interfered with the second hook 134 of the cartridge.

Since there is no change in the position of the fixing ring 123 interfering with the second hook 134 with respect to the clip 121 which is moved backward with the connection port, the fixing ring is positioned at the intersection point where the pair of clamp pieces cross each other So that they are relatively moved forward.

As a result, the state of the clip, in which the tips of the clamping pieces 121a and 121b facing each other come into contact with each other by the fixing ring 123 moved in contact with the second hook 134 relative to the clip, 2 accommodating portion 132, it is possible to smoothly carry out the operation of separating and releasing the clip from the cartridge together with the clip stopper.

The cartridge 130 includes first and second partition covers 130a and 130b that are vertically and integrally formed by recessing the first accommodating portion 131 and the second accommodating portion 132 on the inner side facing each other A plurality of assembly pins 139 are formed to protrude or sink into the inner side surfaces of the first and second partitioning lids facing each other.

The first hook 133 and the second hook 134 are disposed adjacent to the outer surfaces of the first and second partition covers 130a and 130b, A first elastic piece 133a extending a predetermined length from the cut surface formed in the outer surface of the first and second split covers and a second elastic piece 133b protruding from the free end of the first elastic piece 133a, And a first protruding protrusion 133b interfering with the retaining ring 123, as well as a clip elastically contacting or moving backwardly with the formed locking protrusion 127b.

The second hook 134 includes a second elastic piece 134a extending a predetermined length from another cut surface formed in the outer surface of the first and second split covers and a second elastic piece 134b extending from the free end of the second elastic piece 134a And a second protruding protrusion 134b protruding from the second accommodating portion side and interfering with the fixing ring 123 moved backward together with the clip.

The first protruding protrusions 133b of the first hook 133 and the second protruding protrusions 134b of the second hook 134 are formed on the free ends of the first and second elastic pieces, And is sequentially interfered with the stationary ring moved backward together with the clip portion.

The first hook 133 and the second hook 134 are engaged with the first and second hooks 134 and 134 so as to generate a hooking force during sequential interference with the retaining ring during backward movement of the clip in the second accommodating portion, And the first hook 133 is formed on the outer surface of the clip stopper 127 disposed in the second receiving portion of the cartridge, The first protruding protrusion 133b comes into contact with the formed latching groove and stands by for fixing.

A clip portion including a clip 121 is connected and connected to a connection port provided at the tip of the wire 112 inside the cartridge 130 for endoscopic surgery using the endoscope treatment tool 100 having the above- As shown in Fig. 4A, a clip 121 having a pair of clamping pieces 121a and 121b is disposed in a first receiving portion 131 of the cartridge in a state of being opened, and a second receiving portion 132 The cartridge 130 in which the clip stopper 127 is disposed together with the clip connector 125 connected to the clip is prepared.

The insertion tube 111 in which the wire 112 is assembled so as to reciprocate forward and backward is connected to the cartridge 130 so that the connection port 113 provided at the tip of the wire 112 enters through the clip stopper 127 In the second receiving portion.

In this state, as shown in FIG. 4B, the connection port 113 is inserted through the inner hole of the clip stopper 127 by using the operation handle connected to the rear end of the insertion tube so that the wire can be moved forward and backward The second connecting hole 125b formed in the rear end of the clip connecting body 125 is elastically inserted into the second connecting hole 125b by the second slit 124c and the second connecting hole 123d, And the clip is connected to the clip and is connected to the clip through the clip.

The connection and connection operation between the connection port and the clip connection body is performed such that the clip stopper 127 elastically contacts and is fixed by the first hook 133 provided on the outer surface of the cartridge corresponding to the second accommodation portion 132 And the connection port is passed through the inner hole of the clip stopper 127 so as to be connected to and connected to the clip connection body, and at the same time, the pressing body 114 provided at the rear end thereof is press-fitted.

When the connection port 113 connected to the clip connector 125 is retracted to the right in the drawing by the pulling force of the wire connected to the operation handle as shown in FIG. 4C, The clip 121 formed of a pair of the clamp pieces 121a and 122a disposed in the first receiving portion 131 enters the second receiving portion communicating with the first receiving portion and smoothly switches from the open state to the closed state.

That is, since the contact guide surface 131a of the first accommodating portion 131 is formed as an inclined surface gradually becoming smaller toward the second accommodating portion 132 side, the clamping piece 131a, which is in contact with the contact guide surface, 121a, and 121b are moved along the contact guide surface and enter the second receiving portion 132 having a substantially circular hole shape, and are naturally closed.

At this time, the fixing ring 123 positioned at the middle of the length of the pair of clamping pieces 121a, 121b of the clip 121 intersects with the second receiving portion 132, 2 hook 134 and is stopped relative to the clip which is moved backward.

That is, when the retraction of the connection port due to the pulling force of the wire 122 is continued in the right direction in the figure while the fixing ring 123 is in contact with the end portion of the second hook, 125 are moved backwardly with the clip stopper through the second receiving portion while the end portions of the clamping members facing each other are held in contact with each other, The hook is maintained in the stopped state.

In this case, if the relative retraction of the clip relative to the stationary ring 123 is achieved by contact with the second projection 134 of the second hook 134, The pair of clamp pieces are moved to the clip front side more than the intersection where the pair of clamp pieces cross each other until the first pair of clamp pieces are caught by the first latching jaws formed in the boundary region of the cross yarn yarns, .

The clip portion 120 is moved in a direction in which the second hook 134 and the retaining ring 123 are moved in a state in which the retaining ring 123 is moved to the pair of clamping pieces so as to maintain the clip state of the clip 121 The second receiving portion is completely separated from the inside of the cartridge by being pulled backward by the pulling force of the wire relatively larger than the holding force generated between the first receiving portion and the second receiving portion.

At this time, before the clip portion 120 is completely separated from the inside of the cartridge, the fixing ring 123 passes through the first protruding jaw of the first hook portion, as shown in FIG. 4D, An external force for holding the clip 121 of the clip 121 is increased.

5A and 5B, the clipping operation for removing the procedure site after inserting the clip unit 120 separated from the cartridge through the endoscope channel is performed by moving the clip 121 When the wire is pulled to the right in the figure with the pressing body 114 disposed in the inner hole of the clip stopper 127, the rear end of the clip stopper and the tip of the insertion tube Respectively.

In this state, when a pulling force is further applied to the clip 121 connected via the clip 112 through the wire 112, the rear end of the clip, which is connected to the clip 112, 127, the boundary area between the cross plate of the clip and the connecting plate yarn is brought into contact with the inner peripheral surface of the leading end of the clip stopper.

At this time, due to the external force generated due to the contact between the boundary region and the clip stopper, the pair of clamp pieces are forcibly opened outward, and are switched to the open state, It is moved to the intersection position and the fixation force for maintaining the clip state is lost.

As shown in FIG. 5C, in the endoscopic procedure for gripping and removing the human tissue, in a state in which a pair of clamp pieces of the clip 121 are spread to both sides and the clip connector is inserted into the inner hole of the clip stopper, The operation is performed by an operator using a manipulating knob provided at the rear end of the insertion tube 111 to finely advance and retract the wire 112 in the insertion tube.

That is, when the connection port is moved backward (right side in the drawing) by the pulling force of the wire, the connecting plate enters the inner hole of the clip stopper, the gripper piece is pinched and the gripper of the pair of clip ends You can clamp the tissue.

5D, the clip connecting body 125, together with the clip, enters the inner hole of the clip stopper, and at the same time, since the holding ring is pushed forward in contact with the tip of the clip stopper, 121b can be easily taken out by clamping the living tissue while keeping the clamped state by the retaining ring which is moved to the left in the drawing.

Finally, the operation of separating the clip portion 120 pulled out from the endoscope channel from the connection port 113 of the wire together with the clip connector is performed as follows. As shown in FIG. 5E, The connection port 113 is forcibly separated and separated by a pulling force relatively larger than a hooking force at which the connection port is hooked to the second connection port of the clip connection member, Can be easily separated and removed from the outside of the endoscope channel, thereby collecting the living tissue.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be apparent to those of ordinary skill in the art.

110:
111: Insertion tube
112: wire
113:
114:
120: Clip section
121: Clip
121a and 121b:
122a:
122b: cross plate
122c: connection plate
123: Retaining ring
124a, 124c: first and second slits
124b, 124d: first and second fastening holes
125: Slit connector
125a and 125b:
127: clip stopper
130: Cartridge
130a, 130b:
131: First accommodating portion
132: second accommodating portion
133: first hook
134: second hook

Claims (11)

An insertion portion inserted into a channel of the endoscope, the insertion portion having a wire having a connection port at its distal end, the insertion tube being arranged to be longitudinally movable in the longitudinal direction on the inner hole;
A clip having a pair of clamp pieces bent at their tips facing each other and having their lengths crossing each other, a retaining ring inserted so as to be engaged with the clip at the center of the length thereof, and a first connector connected to the clip at one end And a second connection port connected to the connection port is provided at the other end to connect the clip and the connection port, and a clip connection member connected to the clip is inserted and the connection port is connected to the clip connection member, A clip portion including a clip stopper having an inner hole guided therein;
And a second accommodating portion having a first accommodating portion in which the clip is disposed and a clip stopper in communication with the first accommodating portion and in which the clip connecting member is inserted is disposed, and a clip stopper disposed in the second accommodating portion, And a cartridge having a first hook and a second hook adjacent to the first hook in the second receiving portion to receive the clip portion therein,
Wherein the first hook and the second hook are engaged with each other by a fixing ring which sequentially contacts the first hook and the second hook when the clip is detached from the cartridge due to the backward movement of the connection port in a state where the clip connecting body and the connection port are connected, The retaining ring is pivoted so as to be located forward of the intersection point where the pair of clamp pieces cross each other so as to maintain the clip state of the clip held in contact with the tip,
Wherein the cartridge includes a first partitioning lid and a second partitioning lid to form the first containing portion and the second containing portion,
The first hook includes a first elastic piece extending a predetermined length from a cut surface formed in the outer surface of the first and second split covers and a second elastic piece protruding from the free end of the first elastic piece, And a first protruding jaw interfering with a retaining ring which is abutted or moved back with the clip,
The second hook includes a second elastic piece extending a certain length from another cut surface formed in the outer surface of the first and second split covers and a second elastic piece protruding from the free end of the second elastic piece, And a second protruding jaw interfering with the second protruding jaw. The method according to claim 1,
Wherein the retaining ring is moved in such a manner that the retaining ring is positioned forward of an intersection point where the pair of clamp pieces cross each other so as to maintain the clip in contact with the first hook. The method according to claim 1,
The pair of clamping pieces may include a clamping plate having a predetermined length bent at one end thereof, a crossing plate extending a predetermined length from the other end of the clamping plate at a predetermined angle, and a pair of crossing plates crossing each other, And a connecting plate bent and deformed so as to generate the elastic force. The method of claim 3,
Wherein the clamping plate and the crossing plate have a first latching jaw which has a width that is relatively larger than the inner diameter of the retaining ring so as to limit the jarring movement of the retaining ring to the jaw plate side, Wherein the endoscopic treatment instrument is an endoscopic treatment instrument. The method of claim 3,
And the second engaging jaw is provided with a width that is relatively larger than the inner diameter of the retaining ring to prevent the retaining ring from separating away from the coupling plate, Wherein the endoscopic treatment instrument is an endoscopic treatment instrument. The method according to claim 1,
Wherein the first connector includes a first slit which is elastically opened when the connection plate is inserted into the rear end of the clamp, and a first latch hole which is engaged with the connection plate. The method according to claim 1,
And the second connection port includes a second slit that elastically opens when the connection port enters, and a second engagement hole in which the connection port is engaged. delete delete The method according to claim 1,
Wherein the inserting portion is provided on the wire with a pressing body which is press-fitted into the inner hole of the clip stopper when the clip connecting body and the connection section are engaged. 11. The method of claim 10,
Wherein the inserting portion includes a gripping member which is integrally connected to a rear end of the pressing body and is disposed on the outer surface of the wire so that the user is gripped when the pressing body is inserted into the inner hole of the clip stopper. Equipment for treatment.

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