KR101793631B1 - Treatment device for endoscope - Google Patents

Abstract

An endoscopic treatment device is provided. The present invention comprises: an insertion part which is equipped with an insertion tube in which a wire of a pre-determined length having a connection port at a front end is arranged to longitudinally move forward and backward in the internal cavity, and is inserted into a channel of an endoscope; a clip provided with a pair of pincers whose front ends are bent to face each other and whose longitudinal centers are crossed with each other; a clip operating part including a clip connecting body having a first connector at one end to be engaged on the clip and a second connector at the other end to be elastically connected to the connection port so as to connect the clip and the connection port, a stopper having a guide hole formed by penetration to insert and arrange the clip connecting body so that the first and second connectors are exposed at respective ends, and an outer moving ring inserted and arranged on the outer surface of the stopper so as to move to the clip, such that the clip operating part can splay or close the clip; and a cartridge having a first receiving part in which the clip is arranged to be splayed, a second receiving part in which the clip operating part is arranged and a third receiving part in which a ring separating part extending a predetermined length is arranged such that the first receiving part and the end part thereof face each other, thereby accommodating the clip operating part together with the clip. The purpose of the present invention is to provide an endoscopic treatment device which has an easy and simple structure, can reduce manufacturing costs, can be easily used and handled, can pinch a body tissue with a fine force, and can install a clip with one touch, thereby reducing treatment time.

Description

{TREATMENT DEVICE FOR ENDOSCOPE}

More particularly, the present invention relates to a treatment instrument used for endoscopic surgery, and more particularly, it is possible to reduce manufacturing cost by simple and simple overall structure, to facilitate use and handling, and to precisely hold body tissues with minute force The present invention relates to a treatment instrument for an endoscope, which can be attached with a clip at one-touch, thereby reducing a procedure time and being easy to use.

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 provided in such a conventional endoscopic instrument for treating a patient may be configured such that a bending piece protruding outwardly to the second cross plate is formed so that the guide moving ring contacts and temporarily stops, or a conical connection port provided at the end of the wire is elastically inserted A bending plate having a groove formed at an outer periphery thereof and bent at a right angle from the end of the horizontal plate is formed to form a coupling hole, so that the overall structure of the clip portion is complicated and the manufacturing cost is excessively increased, Respectively.

In addition, since the clip portion is divided and assembled into a pair of clips, the clamping operation performance can not be completely ensured, and the connecting connection of the connection port of the wire and the coupling portion formed in the clip portion is unstable, Respectively.

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.

As a specific means for achieving the above object, a preferred embodiment of the present invention is characterized in that a wire having a predetermined length having a connection port at its tip end is provided on the inner hole so as to be longitudinally movable back and forth, ; A clip having a pair of pincers whose ends are bent to face each other and whose centers are crossed with each other; A clip connection body having a first connection port at one end which is engaged with the clip and having a second connection port at the other end which is elastically connected to and connected to the connection port to connect the clip and the connection port; And an outer moving ring inserted into the outer surface of the stopper such that the first and second connecting ports are exposed to the both ends of the stopper and the clip so as to be movable toward the clip, A clip operating portion to be operated; And a third receiving portion having a second receiving portion in which the clip operating portion is disposed and a ring separating portion extending in a predetermined length so as to face the end of the first receiving portion, A cartridge for internally accommodating a clip operating part; The outer moving ring including the outer tube being forcedly moved in contact with the insertion tube passes through the stopper and is positioned on the clip so as to convert the clip in the first housing section into a pinch state, The connection port is elastically connected to the second connector of the clip connector in a state where the tip of the clip is in contact with the ring separator and the outer moving ring located in the clip is moved to the ring separator and separated And an endoscopic treatment instrument.

Preferably, the connection port may include a pair of elastic latching pieces formed by bending a latching jaw inwardly at a distal end thereof so as to be elastically connected to a second connection port on a conical end surface formed at a rear end of the clip linking body.

Preferably, the first connector may include a latch for forming a groove for latching the connection plate provided on the clamp piece.

More preferably, the one side wall of the groove may include a protruding jaw which is in contact with the connecting plate arranged to be engaged with the groove.

Preferably, the second connector may include a hook having a conical end surface so that the elastic hook formed in the connection port is elastically opened, and a ring-shaped hooking groove having a tip end of the elastic hook passing through the hook, .

Preferably, the clip connector includes a connecting bar having a predetermined length connecting the first connector and the second connector, and the connecting bar may have an outer diameter smaller than an inner diameter of the guide hole of the stopper .

Preferably, a first outer diameter portion that is in contact with the inner surface of the guide hole is provided between the first connection port and one end of the connection bar, or between the second connection port and the other end of the connection bar, And a second outer diameter portion which is in contact with the outer diameter portion.

More preferably, the second outer diameter portion may include a protruding protrusion that contacts the end of the stopper to restrict movement to the connection port side.

More preferably, the stopper includes a first stopper tube disposed on the connecting bar and correspondingly coupled to the second outer diameter portion, the first stopper tube having a blade piece protruding from an outer surface thereof, and a second stopper tube coupled to the first outer diameter portion of the clip connection body And a second stopper tube that contacts the tip of the first stopper tube.

More preferably, the second stopper tube facing the clip may be made of a metal material so as to prevent deformation and abrasion due to direct contact with the clip.

Preferably, the ring separator may include a separating bar having a distal end extending a predetermined length toward the first accommodating portion, and a fixture connected to the other end of the separating bar and fixed to the third accommodating portion.

More preferably, the separating bar may include an elastic member for separating confirmation, which contacts the outer moving ring moved along the clip to generate an elastic restoring force to restrict forward movement of the insertion tube.

Preferably, the first accommodating portion is inclined toward the tip of the separating bar disposed in the third accommodating portion from the end of the second contact guiding surface for retracting the guided clip pieces upon contact with the clip pieces of the clip And a pair of third contact guide surfaces extending in length.

The present invention as described above has the following effects.

(1) A clip is disposed in a first receiving portion of the cartridge, a clip operating portion is disposed in a second receiving portion of the cartridge, and an outer portion The clip of the open state is switched to the pinch state by moving the movable ring to the clip and the connection port of the wire moved forward when the clip turned into the pinned state comes into contact with the ring detachment portion and the second connector of the clip- It is possible to more simply and quickly perform the coupling operation of connecting the clip connection body connected to the clip and the connection port of the wire to each other.

(2) The reliability of the product can be improved by ensuring more reliable connection between the second connection port of the clip connector and the connection section of the wire, and the reliability of the product can be improved by stably performing the clamping operation of the clip by moving the wire back and forth .

(3) After the operation, the clip connector is exposed to the outside of the insertion tube sequentially with the clip and the stopper, thereby separating the first connector and the clip of the clip connector and separating the second connector and the connector section of the clip connector Can be performed more easily, so that the usability can be improved.

(4) Since the clip inserted with the insertion portion into the endoscopic channel during the procedure, the human tissue can be sandwiched more delicately with the gripper, and the endoscopic procedure can be performed accurately and stably.

1 is an external view showing an endoscope treatment instrument according to a preferred embodiment of the present invention.
FIGS. 2A and 2B are external views of a state in which a cartridge is disassembled in an endoscopic treatment instrument according to a preferred embodiment of the present invention.
3 is an assembled view showing a state of engagement between a clip and a clip operating part used in an endoscopic treatment instrument according to a preferred embodiment of the present invention.
FIG. 4 is an exploded perspective view showing a state of engagement between a clip and a clip operating part employed in an endoscopic treatment instrument according to a preferred embodiment of the present invention.
5 is a cross-sectional perspective view showing a state of engagement between a clip and a clip operating part used in an endoscopic treatment instrument according to a preferred embodiment of the present invention.
6 is an exploded perspective view showing a state in which a clip, a clip operating portion, and a ring separating portion are disposed on a cartridge used in an endoscopic treatment instrument according to a preferred embodiment of the present invention.
Fig. 8 is a perspective view showing another embodiment of the cartridge used in the endoscopic treatment instrument according to the preferred embodiment of the present invention. Fig.
FIGS. 8A and 8B are perspective views illustrating a state in which a clip operating part and a connection section are engaged in an endoscope treatment instrument according to a preferred embodiment of the present invention. FIG.
Figs. 9A to 9E are operational state diagrams showing a state in which a clip operating portion and a connection port are coupled and separated from a cartridge in an endoscopic instrument 10 according to a preferred embodiment of the present invention.
FIGS. 10A and 10B are operational state diagrams showing the clip opening and closing movement by the clip operating unit in the endoscopic treatment instrument according to the preferred embodiment of the present invention.
11A and 11B are operation states showing a state in which a clip operating part is separated from a clip connecting body in an endoscopic treatment instrument according to a 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.

1 to 6, the endoscope treatment instrument device 100 according to the preferred embodiment of the present invention includes an insertion portion 110, a clip 120, a clip operation portion 130, and a cartridge 140, .

As shown in FIGS. 1 and 2B, the inserting unit 110 includes an insertion tube 111 having a predetermined length, which is a hollow tube, and an inserting unit 110, which is capable of reciprocating back and forth in the longitudinal direction And is inserted into the channel of the endoscope in the procedure.

 The insertion tube 111 may be made of a material having flexibility as a whole so as to naturally curve along a curved portion formed in the insertion portion of the endoscope.

The tip of the wire 112 which is advanced to the end of the insertion tube 111 corresponding to the clip 120 is provided with a connection port 113 which is elastically connected to the rear end of a clip connection member 131 .

At this time, the connection port 113 is formed by a cutout portion 113b that is cut outwardly to be connected to a second connection port 131b formed at the rear end of the clip connection body 131, And a pair of elastic catching pieces 113a which are bent inward.

The wire 112 separated from the connection port 113 by a predetermined distance may include an insert 114 which is formed in a substantially cylindrical shape and is press-fitted into the stopper 135 to be described later.

Here, the insertion tube 111 is formed to be sufficiently longer than a length through which the treatment instrument insertion channel of the endoscope can be inserted, and the insertion body 114 is inserted into a part of the distal end of the insertion tube 111, It is possible to form an inclined surface with a small outer diameter.

The inserting unit 110 may include at least one inserting unit 110 which is integrally connected to the rear end of the inserting unit 114 so as to be able to grip the practicing user while handling the wire, And a holding member for holding the holding member.

The gripping member may include a coil spring member having an outer diameter that is relatively smaller than an inner diameter of the insertion tube 111 and may be welded to the insert.

The rear end of the wire 112 having the connection port 113 at the front end is connected to the operation handle so that the wire 112 disposed in the insertion pipe can be moved forward and backward.

As shown in FIGS. 3 to 6, the clip 120 includes a pair of clamp pieces 121a and 121b whose ends are bent so as to face each other and whose centers are perpendicular to each other, And is inserted into the endoscope channel so as to be able to perform an endoscope operation in which the clip operation part is detached from the cartridge 140 in a state of being connected to the connection port 113 and then the operation part is gripped and removed.

The clip 120 includes a pair of clamping pieces 121a and 121b whose front ends are folded and opposed to each other and whose center portions are alternately staggered.

The pair of clamping pieces 121a and 121b includes a pair of clamping plates 123a and 123b having a toothed portion 122a and 122b at one end thereof and a pair of clamping plates 123a and 123b extending from the other clamping plate 123a and 123b And a connection plate 125 bent and deformed to have an elastic force while integrally connecting one end of a pair of intersecting plates 124a and 124b intersecting with each other.

The teeth 122a and 122b are engaged with each other at the time of the closing operation according to the proximity between the clamp pieces 121a and 121b which have been spread outward so as to generate gripping force for removing a part of the human body tissue through the endoscope. And are provided so as to face each other at the ends of a pair of clamping plates 123a and 123b.

The catching plates 123a and 123b are preferably formed in a substantially arc-shaped cross-sectional shape to prevent damage to the inner surface of the channel due to frictional resistance upon entry into the endoscope channel having a substantially circular cross section.

The intersecting plates 124a and 124b are formed of plate members having a width smaller than the plate widths of the catching plates 123a and 123b and intersect with each other. Sectional plate member bent from each end of the plate member and connecting the plate member and the plate member to each other.

At this time, the width of the cross plates 124a and 124b is set to be approximately 1/2 of the width of the catch plates 123a and 123b so that the pair of catch pieces 121a and 121b can be elastically opened and closed. As shown in FIG.

The stopper 135 (135) which is moved to the side of the grippers 123a and 123b which is worn out when the clip 120 of the clip 120, which has fanned outward, is shifted to the boundary area between the grippers 123a and 123b and the cross plates 124a and 124b, The first stopping protrusions 126a and 126b are formed so as to protrude outward so that the tips of the stoppers 135 are interfered with so as to maintain the pinching of the catching plates 123a and 123b in contact with the tip of the stopper 135 do.

The boundary regions between the intersecting plates 124a and 124b and the connecting plate 125 may be formed in the boundary area between the catch plates 123a and 123b when the stopper 135 is in contact with the tip of the stopper 135, And the second stopping jaws 127a and 127b, which are interfered with by the stopper 135, are formed to protrude outward so as to maintain the maximum open state.

3 to 6, the clip actuating part 130 includes a clip 120 formed of a pair of clamping pieces 121a and 121b interlocked with the forward and backward movement of the wire 112, A stopper 135 and an external moving ring 137 so as to be able to open or close inwardly.

The clip connection member 131 has a first connection port 131a to which the connection plate 125 which is the rear end of the clip 120 is hooked and connected at one end and the connection port 113 is elastically inserted And a second connection port 131b which is coupled to the connection port and can be separated and released by an external force of a predetermined strength in a rear end of the other end to connect the clip 120 and the connection port 113 to each other .

The first connector 131a includes a latching protrusion 132a which defines a groove 132b for latching the connection plate 125 provided at the rear end of the clamping pieces 121a and 121b, The protruding protrusion 132c may protrude from the wall surface to prevent the clip from separating away from the protruding protrusion 132c.

Accordingly, the clip 120 and the clip link 131 may be configured such that when the first link 131a is exposed from the front end of the stopper 135, the link plate 124 of the clip is inserted into the groove 132b And is fastened to the fastening protrusions 132a so as to be fastened and connected to each other easily and quickly.

On the other hand, the separation operation between the clip 120 and the clip connector 131 is performed by a simple operation of lifting the connection plate 125 of the clip from the groove and releasing the engagement with the engagement protrusion 132a will be.

The second connection port 131b includes a hook 133a having a conical cross section so that a pair of elastic catching pieces 113a formed by the cutout 113b when the connection port 113 is forcibly moved, And a ring-shaped catching groove 133b in which the tips of a pair of elastic catching pieces 113a passing through the catching hole 133a are engaged and disengaged.

When the connection port 113 is correspondingly inserted into the hook 133a formed in the second connection port 131b of the clip connector 131 connected to the clip in the cartridge 140, The pair of elastic engaging pieces 113a are moved in contact with the outer surface of the engaging hole so that the elastic engaging pieces 113a are engaged with the annular engaging groove 133b The resiliently engaging piece of the connection port is restored to its original state and is elastically connected and connected to the second connection port 131b.

The clip 120 and the connection port 113 are connected to each other through a clip connection member 131. The stopper is engaged with the insertion tube by the forward and backward movement of the wire, It becomes possible.

The clip connector 131 includes a connecting bar 131c having a predetermined length connecting the first and second connectors 131a and 131b and the connecting bar 131c is connected to the guide hole of the stopper Since the frictional resistance due to the contact between the outer surface of the connecting bar and the inner surface of the guide hole can be prevented by providing the outer diameter of the clip connecting body relatively smaller than the inner diameter of the stopper, It is possible to more smoothly perform forward and backward reciprocating movement.

Further, a gap is formed between the outer surface of the connection bar 131c and the inner surface of the guide hole, thereby forming a hollow space formed by protruding from the outer surface of the stopper when the outer moving ring 137 is moved 135c are inwardly shrunk, and the thickness of the blade can be made sufficiently thick so as to maintain the rigidity of the blade.

A stopper 135 is provided between the first connection port 131a and one end of the connection bar 131c and between the second connection port 131b and the other end of the connection bar 131c. The first and second outer diameter portions 131d and 131e are formed to have the same outer diameter as the inner diameter of the guide hole formed in the stopper 135 so as to be disposed at the center of the guide hole of the guide hole, .

 The second outer diameter portion 131e corresponding to the second connection port 131b preferably has a protruding protrusion 131f protruding from the end of the stopper 135 so as to restrict the movement toward the connection port.

 The stopper 135 includes a hollow tube member having a predetermined length formed through a guide hole having a predetermined size into which the clip connector 131 is inserted so as to expose the first and second connectors 131a and 131b to both ends, ≪ / RTI >

The stopper 135 may include a pair of blade pieces 135c formed of an elastic body having a free end portion extending a predetermined length from the pair of cutout portions 135d formed on the intermediate outer surface of the lengthwise outer side by a predetermined angle.

The free ends of the pair of blade pieces 135c are brought into contact with the outer moving ring 137 which is inserted and arranged on the outer surface of the stopper 135 so that the first forward advancing operation of the insertion tube in contact with the end of the outer moving ring Allowing movement of the clip and the clip operating portion disposed in the first and second receiving portions so that the clip can be switched in the first receiving portion of the cartridge.

At this time, the stopper 135 has the pair of blade pieces 135c on the outer surface thereof and is coupled to the second outer diameter portion 131e of the clip coupling body 131 to be connected to the first stopper tube body And a second stopper tube 135b that is coupled to the first outer diameter portion 131d of the clip connector 131 and contacts the distal end of the first stopper tube.

Here, the first stopper tube body 135a forming the blade piece is made of a resin material, is disposed in front of the first stopper tube body, has a rear end abutting on the front end thereof, and a second stopper tube body 135b Is made of a resin material or a metal material having relatively higher durability and strength than the first stopper tube body made of a resin material so as to prevent deformation and abrasion due to direct contact with the clip in the clamping operation of the clip drawn out from the outside .

In addition, the length of the first connector is formed to be longer than the length of the second stopper tube 135b disposed at the tip of the first stopper tube 135a, The first and second stopper tubes 135a and 135b form a series of tubular bodies by the first outer diameter portion 131d of the disposed first connection port.

The stopper 135 includes a first stopper tube 135a having a longer length and a second stopper tube 135b having a relatively shorter length than the first stopper tube 135a. And the first and second stopper tubes may be formed of a hollow tube integrally formed by a double injection method.

Accordingly, the clip connector 131 is exposed through the tip of the stopper, and the second connector 131b to which the connector 113 is connected is connected to the first connector 131a, which is engaged with the clip, The clip is inserted into the guide hole of the stopper 135 so as to be exposed through the rear end of the stopper, and the clip connection body, in which the clip and the first connection port are first coupled, (Not shown).

The outer moving ring 137 is formed on the outer surface of the stopper 135 so as to be movable toward the clip 120 while shrinking the blade piece 135c protruding from the outer surface of the stopper 135 to coincide with the outer surface of the stopper. And a hollow tube through which the other guide hole is inserted and arranged.

The outer moving ring 137 smoothly inflates the free end of the blade without causing the guiding hole to come into contact with the free end of the blade when the blade is in contact with the free end of the blade corresponding to the blade piece 135c, The inclined surface 137a is formed.

It is preferable that a step 137b is formed on the inner peripheral surface of the rear end of the outer moving ring 137 corresponding to the tip of the insertion tube so that the distal end of the insertion tube 111 is engaged.

Thus, the outer moving ring 137, which is in contact with the tip of the insertion tube 137b, moves toward the clip side while contracting the blade piece 135c of the stopper 135 during forward movement of the insertion tube held by the operation operator So that the clip 120, which has been waiting in the open state in the first receiving portion of the cartridge, is converted into the pinch state.

When the tip of the clip 120, which has been switched to the pinch state continuously, is continuously moved forward with the insertion tube 111 in contact with the ring separating portion disposed in the third accommodating portion of the cartridge, The outer moving ring 137 is moved to the ring separating part 144 and separated, and the clip and the clip connecting body are inserted into the insertion tube and received therein.

1 to 2B and 6, the cartridge 140 includes a first receiving portion 141 in which the clip pieces of the clip 120 are disposed in an open position, and a second receiving portion 141 in which the clip operating portion 130 is disposed And a third accommodating portion 143 having a ring accommodating portion 144 extending to a predetermined length so as to face the first accommodating portion and separating the outer moving ring 137, A clip 120 coupled to the clip connector 131, and a receiver for internally accommodating the clip connector 130

The first receiving portion 141 is a substantially rhombic receiving space in which the clip 120 composed of the pair of the clamp pieces 121a and 121b is arranged in a state of being opened outward.

Here, the first receiving portion 141 includes a first contact guide surface 141a formed to be inclined outward so as to come into contact with the clip pieces 121a and 121b in an open state in which the clip pieces open outward, And a second contact guide surface 141b which is inclined so as to be collected from the guide surface toward the third accommodating portion 143 and which is pinched and clamped by the clip piece when it contacts the clip piece.

 At this time, the first contact guide surface 141a is formed as an inclined surface gradually widening toward the third accommodating portion 143 side, and the second contact guide surface 141b is inclined toward the third accommodating portion 143 And the inclined surface gradually narrows the passage.

The second receiving portion 142 is provided with an outer moving ring 137 and a stopper 135 in which the clip connecting body 131 connected to the clip 120 is inserted into the guide hole, And is a straight receiving space communicating with the first receiving portion 141.

The stopper 135 inserted with the clip clip 131 coupled with the clip 120 in the initial state in which the clip piece is spread is placed in the second accommodating portion 142 and waits on the outer surface of the stopper 135 And an outer moving ring 137 is disposed in contact with the free end of the formed blade piece 135c to stand by with the stopper.

At an inlet end of the second accommodating portion 142 corresponding to the end of the insertion tube 111, a step 137b formed at the rear end of the outer moving ring 137 by the insertion of the insertion tube, It is preferable to form the tapered inlet surface 142a whose inner diameter becomes larger toward the outer side so that the insertion tube can be smoothly entered into contact with the tip of the tapered inlet tube 142a.

Accordingly, the tip end of the insertion tube 111, which is inserted through the tapered inlet end of the second accommodating portion, comes into contact with the step of the outer moving ring inserted into the outer surface of the stopper. In this state, When the movement is performed, the outer moving ring moves to the clip side along the stopper while shrinking and deforming the blade piece of the stopper, thereby changing the clip from the open state to the pinch state.

The third accommodating portion 143 includes a ring separating portion 144 having a distal end extending to the first accommodating portion so as to communicate with the first accommodating portion 141 to separate the outer moving ring 137 .

The ring separator 144 is provided with a separating bar 144a whose distal end is extended by a predetermined length so that the externally moving ring moved along the clip is correspondingly inserted. The separating bar 144a is positioned at a predetermined position And a fixing body 144b connected to one end of the separating bar 144a and fixed to the third receiving portion.

At this time, the outer diameter of the separating bar 144a is equal to or relatively smaller than the inner diameter of the insertion hole of the outer moving ring, and the fixing body 144b is fixed to the fixing boss As shown in Fig.

On the other hand, the separation bar 144a is provided with a separation-checking elastic member (for example, an elastic member) for restricting the forward movement of the insertion tube 111 while contracting the outer movement ring 137, The operator for moving the insertion tube forward is moved to the separation bar 144a so that the elastic confirmation force for elasticity generated due to the compression due to the contact of the separation confirmation elastic member 144c with the outer movement ring 137 It is sensed whether or not the outer moving ring 137 is detached in the third accommodating portion 143 sensibly so as to stop the further insertion tube movement and at the same time, The insertion tube is detached from the cartridge.

8, the first receiving portion 141 is provided with a guide portion 141b for guiding the guide member 141 from the end portion of the second contact guide surface 141b for switching the gripping piece to be guided when the clip is brought into contact with the gripper, And a pair of third contact guide surfaces 141c extending in an inclined manner with a predetermined length toward the tip of the separation bar 144a disposed in the third accommodating portion 143. [

As a result, the forceps that are guided along the second contact guide surface 141b, which is a sloped surface gradually becoming narrower toward the third accommodating portion 143 side, And is guided by the third contact guide surface 141c, which is extended from the second contact guide surface 141b by a predetermined length, to the distal end of the separation bar.

The cartridge 140 is formed by recessing the first receiving portion 141, the second receiving portion 142 and the third receiving portion 143 on the inner surface facing each other, 140a, 140b, and one of the inner surfaces of the first and second partition covers facing each other is provided with a plurality of assembly pins 149 that are assembled correspondingly to each other to generate a coupling force, And is assembled by joining between the assembly pins and the assembly grooves formed in the remaining divisional covers.

In order to perform the endoscopic surgery using the endoscopic treatment apparatus 100 having the above-described configuration, the clip connecting body 131 of the clip operating part 130 accommodated in the cartridge and the wire of the insertion part 110 The clip operation part connected to the connection port is detached from the cartridge together with the clip, and then drawn out to the outside.

9A, the clip operation part 130 and the ring separation part 144 connected to the clip 120 are disposed in the first, second and third storage parts 141, 142 and 143 of the image forming cartridge 140, While the insertion tube 111 of the insertion portion 110 is disposed corresponding to the inlet end of the second accommodating portion 142.

At this time, the clip operating portion 130 disposed in the second accommodating portion is held in contact with the edge of the outer moving ring 137 and the blade piece 135c protruding from the outer surface of the stopper 135, The clip 120 disposed in the first accommodating portion waits in the open state while the connection port 113 is placed in the insertion tube and waits.

9B and 9C, the insertion tube 111 gripped by the procedure user enters through the tapered inlet end 142a of the second receiving portion, so that the distal end of the insertion tube And contacts the step 137b formed at the rear end of the outer moving ring 137. [

At the same time, when the insertion tube 111 is moved forward, the outer moving ring 137 inserted into the outer surface of the stopper is moved to the clip side in the second accommodating portion, The free end of the blade piece 135c protruding from the surface enters into the guide hole of the outer moving ring and is elastically deformed inwardly to be released from the engagement, thereby allowing the movement to the clip side.

At this time, the connection port 113 disposed in the insertion tube is moved together with the insertion tube that moves forward in contact with the second connection port 131b, which is the rear end of the clip connection member 131, in the forwardly-moving insertion tube, And can be moved along with the insertion tube moved forward in a state of being spaced apart from the insertion tube.

Accordingly, the outer moving ring 137 is brought into contact with the clip which is disposed in the first accommodating portion 141 by the forward movement of the insertion tube, and the outer moving ring, which is in contact with the clipping piece of the clip, The clip pieces of the clip are gathered by the second contact guide surface formed in the first accommodating portion and the gathered clamp pieces enter the guide holes of the outer moving ring so that the clip pieces of the clip are moved in the first accommodating portion It is gradually shifted to the melted state.

9D, the clip piece of the clip 120, which has entered into the guide hole of the outer moving ring 137 and is turned into the pinch state, is inserted into the separating bar of the ring separating portion provided in the third accommodating portion 143, The external moving ring 137 is moved forward and backward by an external force while the forward movement of the clip 120 and the clip connecting body 131 connected to the clip 120 is restrained and stopped, And moved along the clip to the ring separating portion 144 to be separated from the clip.

At this time, whether or not the separated outer moving ring 137 is moved to the separating bar 144a so as to switch the clip to the cleavage state is detected by a separation confirmation elastic member 144c ) Is transmitted through the insertion tube to be gripped by the user who uses it, and can be sensed by the hand holding the cartridge.

When the clips 131 of the clips connected to the clips are stopped and restrained as the clips of the clips which are turned into the swinging state contact with the ends of the separation bars of the ring separating unit 144, The connection port 113 made of the resiliently retaining piece 113a is moved to the second connection port 131a made of the conical retaining port 133a while being moved forward to the second connection port 131b side of the clip connection member It is a flexible hooked connection.

At the same time, in order to separate the outer moving ring, a clip operated part connected to the clip is rotated and inserted into the inserted tube 111 moved to the separation bar.

The connection port 113 is resiliently connected and connected to the second connection port 131b of the clip connection member 131 when the clip connection member 131 connected to the separation bar is restrained, Is moved to the separating bar and separated from the clip, as shown in FIG. 9E, when the insertion tube 112 moved forward to the third accommodating portion is reversely moved back to the outside of the cartridge, And the clip moving part connected thereto is pulled out from the cartridge while the outer moving ring 137 is left in the cartridge.

On the other hand, an operation in which the clamping pieces 121a and 121b of the clip 120 are shifted and rotated while being moved along the second contact surface of the first accommodating portion and the tip of the clamping piece separating bar, But the present invention is not limited thereto and the connection port disposed in the insertion tube may be in contact with the second connection port of the clip connection member Or by operating a wire for moving the connection port in the insertion tube in a forward state.

When the tip of the clip which is switched to the pinch state is brought into contact with the tip end of the separation bar of the ring separating portion, the clip of the clip is brought into contact with the second contact guide surface of the first accommodating portion, The outer moving ring is moved to the ring separating part through the stopper and the clip while the stop piece of the stopper is contracted and deformed inward by the insertion tube moved forward, and is separated and collected from the separating bar.

10A and 10B, a clamping operation for inserting the clip 120 separated from the cartridge and the clip actuating part 120 connected thereto through the endoscope channel, When the wire is moved forward by an external force to the clip side in the insertion tube, the stopper 135 of the clip operation part together with the clip 120 is exposed to the outside from the tip of the insertion tube.

At this time, the clip pieces of the clip exposed to the outside from the tip of the insertion tube are switched to the open state, and the stopper 135 of the clip operation part 130 is exposed to the outside, 135a protrude outwardly by an elastic restoring force and are engaged and connected to the distal end of the insertion tube.

In this state, when the wire is pulled back to the right by the operation of the operation knob, the clip connector (131) connected to the connection port in a state where the stopper is fixed by the engagement between the blade piece and the insertion tube The rear end of the clip moves backward through the guide hole of the stopper 135 and enters the guide hole of the stopper.

When the stopper 135 is stopped in contact with the connecting plate of the clip and the second stopping protrusions 127a and 127b formed in the crossing plate, the clip 120 is in a closed state in which the pair of clamping members are opened to the maximum .

In addition, in clipping and removing the procedure site of the human tissue, a clip in a closed state in which a pair of clamp pieces are maximally opened is brought close to a procedure site, and then a procedure operator uses an operation handle provided at the rear end of the insertion tube 111 And the wire 112 is delicately moved back and forth in the insertion tube.

That is, when the clamping pieces 121a and 121b of the clip 120 are opened and folded, the connecting port connected to the clip connecting body is pulled back to the right side by the pulling force of the wire, The ends of the stopper come into contact with the first engaging shoulders 126a and 126b formed in the clamping plate and the crossed plate, and the pair of clamping pieces come in contact with each other and come into contact with each other, The biotissue can be clamped and removed by the tip of the forefinger.

Finally, the operation of separating the clip 120 drawn from the endoscope channel and the clip operating portion 130 connected thereto after the endoscopic operation is disconnected from the connection port 113 of the wire is performed as shown in FIG. 11A, The cross plate of the clip engaged with the groove of the first connector can be lifted and separated so that the clip can be separated from the stopper Can be easily separated and removed from the clip connector.

11B, when the wire in the insertion tube is once again advanced (left in the figure) and the connection port is exposed to the end of the insertion port, the engagement of the second connection port connected to the elastic engagement piece of the connection port The clip connecting body 131 can be easily separated from and removed from the connection port.

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:
120: Clip
121a and 121b:
122a, 122b:
123a, 123b: forceps plate
124a, 124b:
125: Connection plate
130: clip operation part
131: Clip connector
131a, 131b:
131c: Connection bar
132a:
132b: groove
133a:
133b:
135: Stopper
135a: Reform of the day
137: outer moving ring
140: Cartridge
140a, 140b:
141: First accommodating portion
132: second accommodating portion
143: Third storage section
144:
144a: separating bar

Claims (13)

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 pincers whose ends are bent to face each other and whose centers are crossed with each other;
A clip connection body having a first connection port at one end which is engaged with the clip and having a second connection port at the other end which is elastically connected to and connected to the connection port to connect the clip and the connection port; And an outer moving ring inserted into the outer surface of the stopper such that the first and second connecting ports are exposed to the both ends of the stopper and the clip so as to be movable toward the clip, A clip operating portion to be operated;
And a third receiving portion having a second receiving portion in which the clip operating portion is disposed and a ring separating portion extending in a predetermined length so as to face the end of the first receiving portion, A cartridge for internally accommodating a clip operating part; Lt; / RTI >
Wherein the first connector includes a latch jaw that forms a groove for latching the connection plate provided on the clamp piece,
An outer moving ring forcedly moved in contact with the insertion tube passes through the stopper and is positioned on the clip so as to turn the clip in the first accommodating portion into the rimmed state and the tip of the clip which is turned into the rimmed state in the first accommodating portion Wherein the connection port is elastically connected to and connected to a second connection port of the clip connection member in a state where the connection port is in contact with the ring separation unit and the external movement ring located in the clip is moved to the ring separation unit and separated. Treatment device. 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 pincers whose ends are bent to face each other and whose centers are crossed with each other;
A clip connection body having a first connection port at one end which is engaged with the clip and having a second connection port at the other end which is elastically connected to and connected to the connection port to connect the clip and the connection port; And an outer moving ring inserted into the outer surface of the stopper such that the first and second connecting ports are exposed to the both ends of the stopper and the clip so as to be movable toward the clip, A clip operating portion to be operated;
And a third receiving portion having a second receiving portion in which the clip operating portion is disposed and a ring separating portion extending in a predetermined length so as to face the end of the first receiving portion, A cartridge for internally accommodating a clip operating part; Lt; / RTI >
Wherein the second connection port includes a hook having a conical end face so that the elastic hook formed in the connection port can be elastically opened and a ring-shaped hooking groove having a tip end of the elastic hook passing through the hook,
An outer moving ring forcedly moved in contact with the insertion tube passes through the stopper and is positioned on the clip so as to turn the clip in the first accommodating portion into the rimmed state and the tip of the clip which is turned into the rimmed state in the first accommodating portion Wherein the connection port is elastically connected to and connected to a second connection port of the clip connection member in a state where the connection port is in contact with the ring separation unit and the external movement ring located in the clip is moved to the ring separation unit and separated. Treatment device. 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 pincers whose ends are bent to face each other and whose centers are crossed with each other;
A clip connection body having a first connection port at one end which is engaged with the clip and having a second connection port at the other end which is elastically connected to and connected to the connection port to connect the clip and the connection port; And an outer moving ring inserted into the outer surface of the stopper such that the first and second connecting ports are exposed to the both ends of the stopper and the clip so as to be movable toward the clip, A clip operating portion to be operated;
And a third receiving portion having a second receiving portion in which the clip operating portion is disposed and a ring separating portion extending in a predetermined length so as to face the end of the first receiving portion, A cartridge for internally accommodating a clip operating part; Lt; / RTI >
Wherein the clip connecting body includes a connecting bar having a predetermined length connecting the first connecting port and the second connecting port, the connecting bar having an outer diameter smaller than an inner diameter of the guide hole of the stopper,
An outer moving ring forcedly moved in contact with the insertion tube passes through the stopper and is positioned on the clip so as to turn the clip in the first accommodating portion into the rimmed state and the tip of the clip which is turned into the rimmed state in the first accommodating portion Wherein the connection port is elastically connected to and connected to a second connection port of the clip connection member in a state where the connection port is in contact with the ring separation unit and the external movement ring located in the clip is moved to the ring separation unit and separated. Treatment device. 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 pincers whose ends are bent to face each other and whose centers are crossed with each other;
A clip connection body having a first connection port at one end which is engaged with the clip and having a second connection port at the other end which is elastically connected to and connected to the connection port to connect the clip and the connection port; And an outer moving ring inserted into the outer surface of the stopper such that the first and second connecting ports are exposed to the both ends of the stopper and the clip so as to be movable toward the clip, A clip operating portion to be operated;
And a third receiving portion having a second receiving portion in which the clip operating portion is disposed and a ring separating portion extending in a predetermined length so as to face the end of the first receiving portion, A cartridge for internally accommodating a clip operating part; Lt; / RTI >
Wherein the ring separating portion includes a separating bar having a distal end extending a predetermined length toward the first accommodating portion and a fixture connected to the other end of the separating bar and fixed to the third accommodating portion,
An outer moving ring forcedly moved in contact with the insertion tube passes through the stopper and is positioned on the clip so as to turn the clip in the first accommodating portion into the rimmed state and the tip of the clip which is turned into the rimmed state in the first accommodating portion Wherein the connection port is elastically connected to and connected to a second connection port of the clip connection member in a state where the connection port is in contact with the ring separation unit and the external movement ring located in the clip is moved to the ring separation unit and separated. Treatment device. 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 pincers whose ends are bent to face each other and whose centers are crossed with each other;
A clip connection body having a first connection port at one end which is engaged with the clip and having a second connection port at the other end which is elastically connected to and connected to the connection port to connect the clip and the connection port; And an outer moving ring inserted into the outer surface of the stopper such that the first and second connecting ports are exposed to the both ends of the stopper and the clip so as to be movable toward the clip, A clip operating portion to be operated;
And a third receiving portion having a second receiving portion in which the clip operating portion is disposed and a ring separating portion extending in a predetermined length so as to face the end of the first receiving portion, A cartridge for internally accommodating a clip operating part; Lt; / RTI >
The first receiving portion is extended from the end of the second contact guide surface that slides the gripping piece that is guided when the clip is in contact with the gripping piece of the clip by a predetermined length so as to be inclined toward the tip of the separating bar disposed in the third receiving portion Including a pair of third contact guide surfaces,
An outer moving ring forcedly moved in contact with the insertion tube passes through the stopper and is positioned on the clip so as to turn the clip in the first accommodating portion into the rimmed state and the tip of the clip which is turned into the rimmed state in the first accommodating portion Wherein the connection port is elastically connected to and connected to a second connection port of the clip connection member in a state where the connection port is in contact with the ring separation unit and the external movement ring located in the clip is moved to the ring separation unit and separated. Treatment device. 6. The method according to any one of claims 1 to 5,
Wherein the connection port includes a pair of elastic retaining pieces bent inwardly at a distal end so as to be elastically connected to a second connection port on a conical end surface formed at a rear end of the clip connection member. . The method according to claim 1,
And a protrusion protruding from a side wall of the groove to be in contact with a connection plate disposed to be engaged with the groove. The method of claim 3,
And a first outer diameter portion that is in contact with an inner surface of the guide hole between the first connection port and one end of the connection bar or between the second connection port and the other end of the connection bar, And an outer diameter portion. 9. The method of claim 8,
And the second outer diameter portion includes a protruding jaw which contacts the end of the stopper and restricts the movement toward the connection port side. 9. The method of claim 8,
The stopper includes a first stopper tube disposed on the connecting bar and corresponding to the second outer diameter portion and having a blade piece protruding from an outer surface thereof, And a second stopper tube body contacting the distal end of the tubular body. 11. The method of claim 10,
Wherein the second stopper tube body facing the clip is made of a metal material so as to prevent deformation and abrasion due to direct contact with the clip. 5. The method of claim 4,
Wherein the separating bar comprises an elastic body for separating confirmation for restricting forward movement of the insertion tube by generating an elastic restoring force in contact with an outer moving ring which is moved along the clip and is separated. delete

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