Cartridge system

Abstract

This cartridge system comprises: a clip unit that can be loaded into an applicator; and a case that accommodates the clip unit. The case has: a case main part in which is formed an opening allowing insertion of the applicator; and a lid capable of opening up or closing off the opening. The lid can transition to a first state for covering the opening and a second state for leaving the opening open.

Description

Cartridge System

[0001] The present invention relates to a cartridge system that houses a clip unit for an endoscope.

[0002] In endoscopic treatment, a clip unit is used that can ligate the excision site after treatment to stop bleeding, etc. The clip unit includes a clip that clamps the excision site, etc., and a pressure tube that houses the clip and locks it in a closed state. The clip unit is introduced to the treatment site by an applicator (introduction device) that can be inserted through the channel of the endoscope.

[0003] A cartridge is used when attaching a clip unit to an applicator. The clip unit is housed in the cartridge beforehand. A support system for easily loading the clip unit into the applicator is called a cartridge system. The clip unit is maintained in a sterile state. For example, in Patent Document 1, a cartridge housing the clip unit is packaged in a sterilization pack. When attaching the clip unit to the applicator, it is necessary to use both hands to tear the sterilization pack and remove the cartridge from the sterilization pack.

[0004] US Patent Application Publication No. 2010-0217294

[0005] However, in endoscopic treatment, the clip unit must be attached to the applicator multiple times, requiring both hands to tear the sterilization pack and remove the cartridge from the pack each time, which can lengthen treatment time.

[0006] In view of the above circumstances, an object of the present invention is to provide a cartridge system that does not require much effort when attaching a clip unit to an applicator.

[0007] In order to solve the above problems, the present invention proposes the following means: A cartridge system according to a first aspect of the present invention includes a clip unit that can be loaded into an applicator, and a case that houses the clip unit, the case having a case main body portion formed with an opening through which the applicator can be inserted, and a lid that can open and close the opening, and the lid can transition between a first state that covers the opening and a second state that opens the opening.

[0008] The cartridge system of the present invention requires less effort when attaching a clip unit to an applicator, and allows the clip unit loaded in the applicator to be used as quickly as possible.

[0009] 1. A perspective view showing a cartridge system. A perspective view showing a clip introduction device. A perspective view showing a clip unit. A perspective view showing the clip unit, with the presser member shown in a see-through state. A longitudinal cross-sectional view of the presser member. A perspective view of a presser tube. A perspective view of the presser tube as seen from the base end side. A perspective view of a connecting member. A cross-sectional view along line F9-F9 of the cartridge shown in FIG. 1, with the clip unit stored therein. A front view of the cartridge, with the cartridge being held by a user. A front view of the cartridge, with the lid rotating. A front view of the cartridge, with the sterilized paper being peeled off. A front view of the cartridge, with the sterilized paper peeled off. A view showing an operation for loading the clip unit. A view explaining a method for loading the clip unit into the clip introduction device using the cartridge. A view explaining a method for loading the clip unit into the clip introduction device using the cartridge. A view explaining a method for loading the clip unit into the clip introduction device using the cartridge. 1 is a diagram illustrating a method for loading the clip unit into the clip introducer device using the cartridge. FIG. 2 is a diagram illustrating a method for loading the clip unit into the clip introducer device using the cartridge. FIG. 3 is a diagram illustrating a method for loading the clip unit into the clip introducer device using the cartridge. FIG. 4 is a diagram illustrating a method for loading the clip unit into the clip introducer device using the cartridge. FIG. 5 is a diagram illustrating the clip unit loaded into the clip introducer device. FIG. 6 is a diagram illustrating the clip unit introduced into a body. FIG. 7 is a diagram illustrating the clip unit with a pair of arms closed. FIG. 8 is a diagram illustrating the clip unit with the clip locked. FIG. 9 is a diagram illustrating the clip unit with the clip separated. FIG. 10 is a side view of a cartridge system according to a first modified example. FIG. 11 is a side view of the cartridge system, showing the cartridge system being held by a user. FIG. 12 is a side view of the cartridge system, showing the sterilized paper having been peeled off. FIG. 13 is a front view of a cartridge system according to a second modified example. FIG. 14 is a side view of the cartridge system, showing the cartridge system being held by a user.FIG. 41 is a side view of the cartridge system with the insertion port open. FIG. 42 is a front view of the cartridge system according to Variation 3. FIG. 43 is a side view of the cartridge system. FIG. 44 is a side view of the cartridge system, showing it being held by a user. FIG. 45 is a side view of the cartridge system, showing it being held by the insertion port. FIG. 46 is a front view of the cartridge system according to Variation 4. FIG. 47 is a front view of the cartridge system, showing it being held by a user. FIG. 48 is a front view of the cartridge, showing the sterilization paper being torn. FIG. 49 is a front view of the cartridge, showing the insertion port open. FIG. 49 is a front view of the cartridge system according to Variation 2, showing it packaged in a sterilization pack. FIG. 41 is a cross-sectional view taken along line F41-F41 of the sterilization pack shown in FIG. 40. FIG. 41 is a front view of the sterilization pack packaging the cartridge system, showing it being held by a user. FIG. 42 is a plan view of the sterilization pack, showing a state in which force is being applied from both ends in the width direction. FIG. 43 is a plan view of the sterilization pack, showing the pack lid being torn. FIG. 44 is a plan view of the sterilization pack, showing the insertion port open. FIG. 45 is a side view of the sterilization pack according to Variation 5. Figure 10 is a side view of a sterilization pack according to Modification 6. Figure 11 is a side view of the same sterilization pack, showing the pack lid in the second state. Figure 12 is a perspective view of a cartridge system according to a third embodiment, showing the cartridge system packaged in a sterilization pack. Figure 13 is a perspective view of a clip introduction device according to the third embodiment. Figure 14 shows the state in which the sterilization pack is being opened using a protrusion. Figure 15 is a perspective view of a clip introduction device according to Modification 7.

[0010] Hereinafter, a cartridge system according to an embodiment will be described with reference to the drawings. In the following description, components having the same or similar functions will be denoted by the same reference numerals. Duplicate descriptions of those components may be omitted.

[0011] First Embodiment A cartridge system 100 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 39. FIG.

[0012] Fig. 1 is a perspective view showing a cartridge system 100. As shown in Fig. 1, the cartridge system 100 has a clip unit 1 and a cartridge (case) 5 that can accommodate the clip unit 1. The cartridge system 100 is a support system for easily loading the clip unit 1 into a clip introduction device (applicator) 200.

[0013] [Clip Introducing Device 200] Fig. 2 is a perspective view showing the clip introducing device 200. As shown in Fig. 2, the clip introducing device (applicator) 200 includes a sheath 220, an operating wire 230, and an operating section 240. The clip introducing device 200 is inserted, for example, into a treatment tool insertion channel of an endoscope and used in combination with the endoscope (not shown). For this reason, the sheath 220 is formed to be sufficiently longer than the length of the treatment tool insertion channel of the endoscope. The sheath 220 is flexible and bends in accordance with the curvature of the insertion section of the endoscope.

[0014] 2, the sheath 220 is formed in an elongated tubular shape as a whole and includes a distal tip 221, a distal coil 222, and a proximal coil 224. The distal coil 222 is disposed on the distal end side of the sheath 220. The distal tip 221 is disposed at the distal end of the distal coil 222.

[0015] As shown in FIG. 2, the operating wire (power transmission unit) 230 includes an arrowhead hook (connection unit) 231 connected to the clip unit 1 and a wire 232 for operating the arrowhead hook 231 .

[0016] 2, the arrowhead hook 231 includes a substantially conical engaging portion 231a that engages with the clip unit 1, and a wire connecting portion 231b provided at the base end of the engaging portion 231a. The arrowhead hook 231 is formed of a metal material such as stainless steel.

[0017] The wire 232 is inserted so as to be able to move forward and backward relative to the sheath 220. The distal end of the wire 232 is fixed to the proximal end of the wire connecting portion 231b by, for example, welding.

[0018] 2, the operation unit 240 includes an operation unit main body 241, a slider 242, and a thumb ring 248. The operation unit main body 241, the slider 242, and the thumb ring 248 are injection molded from, for example, a resin material. The operation unit main body 241 includes a slit portion 241a and a rotating grip 241b on the tip side. The slit portion 241a supports the slider 242 so that it can move forward and backward.

[0019] The slider 242 is attached to the operation portion main body 241 so as to be movable forward and backward in the longitudinal axis direction, and has the base end of the wire 232 attached thereto. When the slider 242 moves forward and backward along the operation portion main body 241, the wire 232 moves forward and backward relative to the sheath 220, and the arrowhead hook 231 moves forward and backward.

[0020] The thumb ring 248 is attached to the base end of the operation portion body 241 so as to be rotatable around the longitudinal axis of the operation portion body 241 .

[0021] [Clip unit 1] Fig. 3 is a perspective view showing the clip unit 1. Fig. 4 is a perspective view showing the clip unit 1, with the pressing member 3 being transparently displayed. As shown in Fig. 3, the clip unit 1 includes a clip 2, the pressing member 3, and a connecting member 4.

[0022] In the following description, the clip 2 side in the longitudinal direction A of the clip unit 1 is referred to as the tip side (distal side) A1 of the clip unit 1, and the connecting member 4 side is referred to as the base side (proximal side) A2 of the clip unit 1. Furthermore, the direction perpendicular to the longitudinal direction A is referred to as the "second direction B" or "left-right direction B." Furthermore, the direction perpendicular to the longitudinal direction A and the second direction B is referred to as the "first direction C" or "up-down direction C."

[0023] The clip (clip arm) 2 is formed by bending a metal plate at its center. As shown in Figure 3, the clip 2 has a pair of arms 21 that can be opened and closed, and a base end 28 that connects the pair of arms 21. The base end side A2 of the clip 2 is inserted into the internal space 38 of the pressing member 3.

[0024] 3, the pair of arms 21 includes a first arm 211 and a second arm 212. The first arm 211 and the second arm 212 are disposed on either side of a central axis O1 in the longitudinal direction A of the clip unit 1. Note that the clip 2 may have three or more arms.

[0025] 4, the first arm 211 has, from the distal end side A1 to the proximal end side A2, a tissue gripping portion 22, a flat plate-shaped gripping portion 23, a sliding portion 24, and an engaging portion 25. The tissue gripping portion 22 is formed by bending the distal end of the first arm 211 inward. The sliding portion 24 is a portion that elastically deforms when the pair of arms 21 are retracted into the presser member 3.

[0026] As shown in FIG. 4, the second arm 212 has, from the distal end side A1 to the proximal end side A2, a tissue gripping portion 22, a flat plate-shaped gripping portion 23, a sliding portion 24, and an engaging portion 25.

[0027] The engaging portion 25 is a member that can engage with a clamping member 32 of the pressing member 3, which will be described later. The tip side A1 of the engaging portion 25 is formed as a slope that forms an obtuse angle with respect to the longitudinal direction A, and the base side A2 is formed as a slope that forms an acute angle with respect to the longitudinal direction A.

[0028] The base end 28 connects the first arm 211 and the second arm 212. The first arm 211 and the second arm 212 connected by the base end 28 are provided so as to be able to open and close toward the tip side A1. The base end 28 is bent into a U-shape and is connected to a hook 41f of the connecting member 4. The base end 28 is biased so that the pair of arms 21 are in an open state. Therefore, the pair of arms 21 of the clip 2 have a self-expanding force in the opening and closing direction P.

[0029] 4, the base end portion 28 and a hook 41f of the connecting member 4, which will be described later, are connected by inserting the hook 41f of the connecting member 4 into the U-shaped base end portion 28. When the base end portion 28 is connected to the connecting member 4, the opening / closing direction P of the pair of arms 21 substantially coincides with the left-right direction B.

[0030] 5 is a cross-sectional view of the pressing member 3 in the longitudinal direction A. The pressing member (tubular member) 3 is a cylindrical member capable of storing at least a portion of the clip 2. The pressing member 3 has an internal space 38 through which the clip 2 advances and retreats in the longitudinal direction A. The pressing member 3 can fix the clip 2 retracted into the internal space 38 in a closed state. As shown in FIG. 5, the pressing member 3 has a pressing tube 3A provided on the base end side A2 and a pressing pipe 3B provided on the tip end side A1.

[0031] 6 is a perspective view of the pressure tube 3A. As shown in FIG. 6, the pressure tube (second tubular member) 3A has a cylindrical pressure tube main body 30, protruding and retracting wings 31, and a tightening member 32.

[0032] The holding tube body 30 is formed by injection molding a material softer than the clip 2, such as a thermoplastic resin having appropriate elasticity, such as PPA (polyphthalamide), PA (polyamide), PEEK (polyether ether ketone), or LCP (liquid crystal polymer). The holding tube body 30 may also be formed from a metal instead of a thermoplastic resin.

[0033] 7 is a perspective view of the pressing tube 3A as seen from the base end side A2. An engaging recess 30r that engages with an engaging protrusion 43p of the connecting member 4 (described later) is formed in the base end opening 3d of the pressing tube main body 30. The engaging recess 30r is provided on both sides of the central axis O1.

[0034] The protruding and retracting wings 31 are a pair of protruding and retracting projections relative to the outer peripheral surface 30a of the retaining tube main body 30. The protruding and retracting wings 31 are provided on both sides of the central axis O1. The protruding and retracting wings 31 have a basic position in which they protrude outward in the radial direction R relative to the outer peripheral surface 30a. When the protruding and retracting wings 31 receive a force from the outside toward the inside in the radial direction R, they enter a retracted state in which they retract into the outer peripheral surface 30a. When the force is released, the protruding and retracting wings 31 return from the retracted state to the protruding state.

[0035] The clamping member 32 is a ring-shaped member provided in the internal space 38 of the presser tube 3A. The clamping member 32 is made of metal. Note that the clamping member 32 only needs to be formed to be harder than the presser tube main body 30, and may be formed of, for example, a thermoplastic resin instead of metal.

[0036] The pressure pipe (first tubular member) 3B is a cylindrical member made of metal. The pressure pipe 3B is press-fitted into the tip of the pressure pipe 3A. The pressure pipe 3A and the pressure pipe 3B may be connected by heat welding, adhesive bonding, or screw fastening.

[0037] 8 is a perspective view of the connecting member 4. The connecting member 4 is detachably connected to the base end 28 of the clip 2. The connecting member 4 is also detachably connected to the arrowhead hook 231 that passes through the sheath 220. In other words, the connecting member 4 connects the clip 2 and the arrowhead hook 231. As shown in FIG. 8 , the connecting member 4 includes a tip connecting portion 41 provided at the tip, a base end connecting portion 42 provided at the base end, and a rod-shaped portion 45 that connects the tip connecting portion 41 and the base end connecting portion 42.

[0038] 8, the tip connecting portion 41 has a hook 41f at its tip, a breaking portion 41b provided on the base end side A2 of the hook 41f, and a tip expanding portion 41e. The tip connecting portion 41 can be inserted through the internal space 38 of the pressing member 3 when connected to the clip 2.

[0039] The hook 41f is a hook that extends in the vertical direction C perpendicular to the central axis O1 and is formed in a generally cylindrical rod shape. The hook 41f extends from the "lower side" to the "upper side" in the vertical direction C. The base end 28 of the clip 2 is hooked from above onto the hook 41f.

[0040] The breaking portion 41b breaks when a breaking force is applied to the hook 41f by pulling the base end 28 toward the base end side A2. The breaking portion 41b may have a mechanism for releasing the connection between the base end 28 of the clip 2 and the hook 41f of the connecting member 4. For example, the breaking portion 41b may have a mechanism for releasing the connection between the base end 28 and the hook 41f by deforming (plastic deformation or elastic deformation) without breaking.

[0041] The proximal end connecting portion 42 is an engaging portion that is engaged (connected) with the arrowhead hook 231 of the clip introduction device 200. The proximal end connecting portion 42 has a connecting portion main body 43 and a connecting arm 44, as shown in FIG.

[0042] The connecting portion main body 43 is provided at the base end of the rod-shaped portion 45. An engaging protrusion 43p that protrudes in the vertical direction is formed on the connecting portion main body 43. The engaging protrusion 43p engages with an engaging recess 30r provided in the base end opening of the pressing member 3, thereby restricting relative rotation between the pressing member 3 and the connecting member 4 in the circumferential direction with respect to the longitudinal direction A.

[0043] The connecting arm (a pair of legs) 44 is provided at the base end of the connecting body 43 and is bifurcated. The connecting arm 44 is elastically deformable in the up-down direction C relative to the connecting body 43 and can open and close relative to the connecting body 43. The connecting arm 44 is formed with a notch 44m that grips and stores the engaging portion 231a of the arrowhead hook 231. The notch 44m is formed in a shape that fits closely to the outer peripheral surface of the engaging portion 231a of the arrowhead hook 231. The connecting arm 44 can be connected to the arrowhead hook 231 of the clip introduction device 200 when in the open state, and can maintain its connection to the arrowhead hook 231 of the clip introduction device 200 when in the closed state.

[0044] The rod-shaped portion 45 is a generally rod-shaped member extending in the longitudinal direction A. The rod-shaped portion 45 is provided between the distal end connecting portion 41 and the proximal end connecting portion 42, and connects the distal end connecting portion 41 and the proximal end connecting portion 42. The rod-shaped portion 45 can be inserted through the internal space 38 of the pressing member 3.

[0045] [Cartridge 5] Fig. 9 is a cross-sectional view of the cartridge 5 shown in Fig. 1 taken along line F9-F9, showing a state in which the clip unit 1 is stored inside. Note that the cartridge 5 shown in Fig. 1 is a view in which the configuration of the storage area 7S and the like is omitted.

[0046] 1, the cartridge 5 is a case that stores the clip unit 1. The cartridge 5 is about 40 mm wide, about 70 to 80 mm long, and about 5 mm thick, making it easy to hold in your hand.

[0047] The cartridge 5 is manufactured by injection molding from a transparent resin material that has an appropriate hardness, such as ABS, PC, PP, PS, acrylic, cycloolefin polymer, etc. The cartridge 5 is formed using a transparent resin material, making it easy for the user to determine whether or not the clip unit 1 is present inside.

[0048] As shown in Figure 1, of the two directions perpendicular to the longitudinal direction L of the cartridge 5 and perpendicular to each other, one is referred to as the "width direction W" and the other as the "height direction H." Furthermore, a plane parallel to the longitudinal direction L and the width direction W is referred to as the "horizontal plane HP." A plane parallel to the longitudinal direction L and the height direction H is referred to as the "vertical plane VP." Furthermore, in the cartridge 5 storing the clip unit 1, the side of the pair of arms 21 is referred to as the tip side L1 of the cartridge 5, and the side of the connecting member 4 is referred to as the base side L2 of the cartridge 5.

[0049] As shown in FIG. 1, the cartridge 5 has a cartridge body (case body portion) 70 formed in a roughly rectangular box shape, a storage area 7S formed inside the cartridge body 70, and a lid portion (lid) 51 that can open and close an insertion port (opening) 67 formed in the cartridge body 70.

[0050] The cartridge body 70 is formed with a storage area 7S in which the clip unit 1 is stored so as to be movable in the longitudinal direction (advance / retract direction) L. As shown in Fig. 9 , the storage area has a first area 71, a folding area 73, and a sheath insertion area 74. The first area 71, the folding area 73, and the sheath insertion area 74 are arranged from the distal end to the proximal end in the longitudinal direction L of the cartridge 5.

[0051] The cartridge body 70 is formed with an insertion port (opening) 67 through which the sheath 220 can be inserted. The insertion port 67 has an opening surface that is formed substantially perpendicular to the longitudinal direction L. The insertion port 67 is formed on the side surface of the base end side L2 of the cartridge body 70. The insertion port 67 communicates with the sheath insertion region 74.

[0052] The first region 71 is an internal space in which the clip unit 1 is stored so as to be movable in the longitudinal direction L. The first region 71 communicates with the folding region 73.

[0053] The folding region 73 is a region that holds the protruding / retracting wing 31 in a retracted state. A reduced diameter portion 73c is formed in the folding region 73. When the clip unit 1 is stored in the cartridge 5, the reduced diameter portion 73c can hold the connecting arm 44 of the connecting member 4 in a state that prevents the connecting arm 44 from spreading.

[0054] The sheath insertion region 74 is a region into which the distal end portion of the sheath 220 that has passed through the insertion port 67 is inserted. The sheath insertion region 74 is located on the proximal end side L2 of the folding region 73 and communicates with the folding region 73. At the portion of the sheath insertion region 74 where it connects to the folding region 73, the length of the sheath insertion region 74 in the width direction W is longer than the length of the folding region 73 in the width direction W. A sheath abutment portion 76 is formed in the sheath insertion region 74, against which the distal tip 221 of the advanced sheath 220 can abut.

[0055] The lid 51 is a member that can open and close the insertion opening 67. The lid 51 is provided so that it can be opened and closed by the thumb when the cartridge 5 is held in one hand.

[0056] The lid portion 51 can transition between a first state P1 and a second state P2. The first state P1 is a state in which the lid portion 51 covers the insertion opening 67. In the first state P1, the lid portion 51 is closed. In the second state P2, the insertion opening 67 is opened. In the second state P2, the lid portion 51 is open.

[0057] When the lid portion 51 is in the first position P1, the storage area 7S is maintained in a sterilized state. A sterilized state is a state in which the probability of microorganisms surviving is one in a million or less. By maintaining the storage area 7S in a sterilized state, the clip unit 1 can be maintained in a sterilized state without packaging the cartridge 5 in a sterilization pack. The storage area 7S is sterilized, for example, by filling it with a sterilizing gas. The sterilizing gas is a gas that has a sterilizing effect. Examples of sterilizing gases that are used include ethylene oxide gas and hydrogen peroxide gas. Note that if the storage area 7S is sterilized by gamma rays or the like, it does not need to be filled with a sterilizing gas.

[0058] The lid portion 51 is movably attached to the cartridge body 70. The lid portion 51 transitions from the first state P1 to the second state P2, for example, by moving in the insertion direction away from the first end face 70a of the cartridge body 70. Here, the insertion direction refers to the direction in which the clip introducer device 200 is inserted into the insertion opening 67, which is the longitudinal direction L. The first end face 70a refers to the end face of the cartridge body 70 where the insertion opening 67 is formed.

[0059] In this embodiment, the lid portion 51 is rotatably connected to the cartridge body 70. The lid portion 51 transitions from the first state P1 to the second state P2 as a result of the lid portion 51 rotating relative to the cartridge body 70. Note that the lid portion 51 may be configured to be slidable in the width direction W or the height direction H relative to the cartridge body 70.

[0060] In this embodiment, the lid portion 51 is rotatable about a rotation shaft 51a whose axial direction is the height direction H. The rotation shaft 51a is connected to an end of the first end surface 70a in the width direction W. The lid portion 51 is rotatable clockwise and counterclockwise when viewed from the height direction H.

[0061] In this embodiment, the size in the width direction W of the cartridge body 70 and the size in the width direction W of the lid portion 51 are approximately equal. The larger the size in the width direction W of the lid portion 51, the smaller the amount of force that needs to be applied when rotating the lid portion 51. In this embodiment, the size in the width direction W of the cartridge 5 is formed to be sufficiently larger than the size in the width direction W required to accommodate the clip unit 1. Therefore, a large force is not needed when rotating the lid portion 51.

[0062] When the lid 51 is in the first state P1, sterilization paper 51b is sandwiched between the cartridge body 70 and the lid 51. The sterilization paper 51b is sandwiched while blocking the insertion opening 67. The sterilization paper 51b is a material that is impermeable to viruses and bacteria. The sterilization paper 51b is a material that allows sterilization gas to pass through in one direction. The sterilization gas does not pass through the sterilization paper 51b in the direction opposite to the direction in which the sterilization gas can pass through. The shape and properties of the sterilization paper 51b are not limited. In the first state P1, it is sufficient that no gap is formed between the insertion opening 67 and the lid 51, and that the sterilization state of the storage area 7S can be maintained.

[0063] The sterilization paper 51b is provided so as to peel off as the lid portion 51 moves away from the cartridge body 70. The sterilization paper 51b is, for example, adhered to the lid portion 51 and the first end surface 70a. At this time, it is adhered so that no gap is formed between the sterilization paper 51b and the first end surface 70a. At this time, the adhesive surface between the sterilization paper 51b and the lid portion 51 is more firmly adhered than the adhesive surface between the sterilization paper 51b and the first end surface 70a. Therefore, when the lid portion 51 moves away from the cartridge body 70, the adhesive between the sterilization paper 51b and the first end surface 70a peels off while the sterilization paper 51b and the lid portion 51 remain connected. The arrangement of the sterilization paper is not limited.

[0064] When the cover 51 is in the first position P1, the sterilized paper 51b is adhered to the first end surface 70a with the sterilized paper 51b covering the insertion opening 67, thereby maintaining the sterilized state of the storage area 7S. When the adhesion between the sterilized paper 51b and the first end surface 70a is released, the insertion opening 67 is opened and the cover 51 enters the second position P2.

[0065] [Operation of Cartridge 5] Next, operation of the cartridge 5 will be described with reference to Figures 10 to 13. Figure 10 is a front view of the cartridge 5, showing the cartridge 5 being held by a user. As shown in Figure 10, the cartridge 5 is held in one hand. For example, the cartridge 5 is held in one hand by placing the thumb on the edge of the lid portion 51 and pinching the cartridge body 70 between the fingers other than the thumb and the palm. At this time, the lid portion 51 is in the first state P1.

[0066] FIG. 11 is a front view of the cartridge 5, showing the lid 51 being rotated. As shown in FIG. 11 , when a force is applied to the lid 51 by the thumb in the width direction W, the lid 51 rotates around the rotation axis 51a. At this time, the cartridge body 70 is supported by the fingers other than the thumb and the palm, so the lid 51 can be rotated while the cartridge 5 is held in one hand. In this embodiment, the sterilization paper 51b is folded in half with the fold aligned with the rotation axis 51a. Therefore, the sterilization paper 51b does not peel off until the lid 51 is rotated by more than a predetermined angle. Therefore, even if the lid 51 is accidentally rotated, the sterilization paper 51b will not peel off unless it is rotated by more than the predetermined angle, thereby maintaining the sterilized state of the storage area 7S.

[0067] Figure 12 is a front view of the cartridge 5, showing the sterilization paper 51b being peeled off. As the lid 51 is further rotated as shown in Figure 12, the sterilization paper 51b is peeled off. After the lid 51 has rotated by a predetermined angle or more, the sterilization paper 51b is peeled off from the first end surface 70a as the lid 51 continues to rotate. At this time, the cartridge 5 is being held in one hand, and the lid 51 is being moved by the thumb.

[0068] Figure 13 is a front view of the cartridge 5, showing the state in which the sterilization paper 51b has been peeled off. As the lid part 51 is further rotated as shown in Figure 13, the sterilization paper 51b moves away from the first end surface 70a, opening the insertion opening 67. In other words, the lid part 51 is in the second state P2. When the lid part 51 transitions from the first state P1 to the second state P2, the cartridge 5 is being held in one hand, and the lid part 51 is being moved by the thumb.

[0069] [Method of Loading Clip Unit 1] Next, the operation of the cartridge system 100 will be described with reference to Figures 14 to 20. Figure 14 is a diagram showing the operation of loading the clip unit 1. Figures 15 to 20 are diagrams explaining a method of loading the clip unit 1 into the clip introducer device 200 using the cartridge 5.

[0070] The user inserts the sheath 220 into the sheath insertion region 74 from the insertion port 67. The distal tip 221 of the sheath 220 illustrated in FIG.

[0071] 15 is a diagram showing the clip unit 1 connected to the clip introduction device 200. The user advances the slider 242 relative to the operation unit body 241 of the operation unit 240, and advances the operation wire 230 relative to the sheath 220, thereby pushing the connecting member 4 with the arrowhead hook 231 and advancing the clip unit 1 until it comes into contact with the cartridge 5.

[0072] 16 is a diagram showing the clip unit 1 connected to the clip introduction device 200. The user further advances the arrowhead hook 231 to connect the engaging portion 231 a of the arrowhead hook 231 with the connecting arm 44 of the connecting member 4.

[0073] 17, the user pulls the operating wire 230. The clip 2 of the clip unit 1 is pulled toward the base end side L2 by the connecting member 4 connected to the arrowhead hook 231.

[0074] The user pulls the clip unit 1 further toward the proximal end side L2. As shown in Figure 18, the pressure tube 3A passes through the folded region 73. The pressure tube 3A slides through the folded region 73 from the distal end side L1 toward the proximal end side L2, and the protruding / retracting wings 31 of the pressure tube 3A enter a retracted state where they can be housed in the sheath 220. The protruding / retracting wings 31 held in the retracted state are retracted into the sheath 220. The protruding / retracting wings 31 retracted into the sheath 220 are held in the retracted state.

[0075] 19 and 20 , the user further pulls the operating wire 230. The clip 2 pulled toward the proximal end L2 is pulled into the internal space of the pressure tube 3A and into the sheath 220. This completes the loading of the clip unit 1 into the clip introducer 200.

[0076] [Operation and Function of Clip Unit 1] Next, the operation and function of the clip unit 1 will be described with reference to FIGS. 21 to 25. FIG.

[0077] 21 is a diagram showing the clip unit 1 loaded into the clip introducer device 200. The clip unit 1 is loaded into the clip introducer device 200 using a cartridge 5. The connecting member 4 of the clip unit 1 loaded into the clip introducer device 200 is connected to an arrowhead hook 231 that passes through the inside of the sheath 220. The protruding and retracting wings 31 are pressed against the inner circumferential surface of the sheath 220 and are in a retracted state.

[0078] The pair of arms 21 of the loaded clip unit 1 are in a closed state, being pressed against the inner circumferential surface of the sheath 220. The engaging portion 25 is located on the distal side A1 of the fastening member 32, and the pair of arms 21 are not locked in the closed state.

[0079] 22 is a diagram showing the clip unit 1 introduced into the body. The user introduces the clip unit 1 loaded into the sheath 220 into the body via the channel of the endoscope. Next, the user advances the arrowhead hook 231 by advancing the slider 242 along the operation unit body 241. The user advances the clip unit 1 until the protruding / retracting wings 31 emerge from the sheath 220. By emerging from the sheath 220, the protruding / retracting wings 31 return from the retracted state to the protruding state, which is the basic position.

[0080] When the distal ends of the pair of arms 21 come out of the sheath 220, the self-expanding force of the pair of arms 21 serves as a restoring force, and the clip 2 returns to the open state while moving toward the distal end relative to the pressing member 3. Even when the pair of arms 21 return to the open state and protrude most from the pressing member 3, the engaging portion 25 is disposed in the internal space 38 of the pressing member 3.

[0081] 23 is a diagram showing the clip unit 1 with the pair of arms 21 closed. The user retracts the arrowhead hook 231 by retracting the slider 242 along the operating unit body 241. The connecting member 4 connected to the arrowhead hook 231 pulls the clip 2. The pair of arms 21, which have a self-expanding force, are pulled toward the base end side A2, thereby pushing the distal opening 3a of the holding member 3 toward the base end side A2. The protruding and retracting wings 31, which are in the protruding state, engage with the sheath 220 and are therefore not retracted into the sheath 220. Therefore, the clip 2 pulled by the connecting member 4 is retracted into the holding member 3.

[0082] When the connecting member 4 pulls the base end 28 of the clip 2 toward the base end side A2 of the presser member 3, the pair of arms 21 are pulled into the presser member 3 and gradually close. When the pulling force on the base end 28 is released in this state, the clip 2 returns to the open state while moving toward the tip end side A1, using the self-expanding force of the pair of arms 21 as a restoring force. The user can return the pair of arms 21 to the open state to re-grasp the tissue.

[0083] 24 is a diagram showing the clip unit 1 in which the clip 2 is locked. When the proximal end 28 is further pulled toward the proximal side A2 of the presser member 3, the engaging portion 25 is retracted toward the proximal side A2 from the fastening member 32. Because the proximal side A2 of the engaging portion 25 is formed as an obtuse-angled slope, the engaging portion 25 is easily retracted toward the proximal side from the fastening member 32. On the other hand, because the distal side A1 of the engaging portion 25 is formed as an acute-angled slope, when the engaging portion 25 is retracted toward the proximal side A2 from the fastening member 32, the engaging portion 25 engages with the fastening member 32. As a result, movement of the clip 2 toward the distal side A1 relative to the presser member 3 is restricted, and the pair of arms 21 are locked in the closed state. Once the pair of arms 21 are locked in the closed state, they cannot return to the open state.

[0084] 25 is a diagram showing the clip unit 1 from which the clip 2 has been separated. The user further pulls the clip 2. A breaking force is applied to the hook 41f by pulling, and the breaking portion 41b breaks. The breaking strength of the breaking portion 41b is lower than the breaking strength of the connecting portion main body 43. Therefore, the breaking portion 41b breaks, not the connecting portion main body 43.

[0085] The user uses the cartridge 5 to reload a new clip unit 1 into the clip introducer device 200 .

[0086] According to the cartridge system 100 of this embodiment, since it has the lid portion 51, the storage area 7S of the cartridge 5 is in a sterilized state in the first state P1. Therefore, the sterilized state of the clip unit 1 housed in the cartridge 5 can be maintained without packaging the cartridge 5 in a sterilization pack. This makes it possible to store the cartridge 5 without packaging it in a sterilization pack. When attaching the clip unit 1 to the clip introducer 200, the effort of using both hands to tear the sterilization pack and remove the cartridge 5 from the sterilization pack can be eliminated. Therefore, the clip unit 1 loaded in the clip introducer 200 can be used as soon as possible.

[0087] According to the cartridge system 100 of this embodiment, the lid portion 51 can be changed from the first position P1 to the second position P2 with the thumb while holding the cartridge 5 in one hand. Therefore, the lid portion 51 of the cartridge 5 can be opened while holding the clip introducer device 200 in the other hand. Therefore, attaching the clip unit 1 to the clip introducer device 200 is easy.

[0088] (Modification 1) [Cartridge System 100B] Next, a cartridge system 100B according to modification 1 will be described with reference to Figures 26 to 28 .

[0089] Figure 26 is a side view showing a cartridge system 100B. As shown in Figure 26, the cartridge system 100B has a clip unit 1 and a cartridge 5B. As shown in Figure 26, the cartridge 5B differs from the cartridge 5 in the arrangement of the rotation shaft 51a and the sterilization paper 51b.

[0090] The cover 51 is rotatable about a rotation shaft 51a. The rotation shaft 51a is disposed so that the width direction W is the axial direction. The rotation shaft 51a is connected to an end of the first end surface 70a in the height direction H. The cover 51 is rotatable clockwise and counterclockwise when viewed from the width direction W.

[0091] The sterilized paper 51b is folded in half and arranged so that the fold is aligned with the rotation axis 51a. That is, the fold of the sterilized paper 51b faces the width direction W.

[0092] Next, the operation of the cartridge 5B will be described with reference to Figures 27 and 28.

[0093] FIG. 27 is a side view of the cartridge system 100B, showing the cartridge 5B being held by a user. As shown in FIG. 27, the cartridge 5B is held in one hand. At this time, the lid portion 51 is in the first state P1, and the storage area 7S is in a sterile state. The cartridge 5B is held in one hand, for example, by placing the thumb on the edge of the lid portion 51 and sandwiching the cartridge body 70 between the fingers other than the thumb and the palm. At this time, the thumb is placed on the edge of the lid portion 51 in the height direction H. At this time, the fingers other than the thumb are facing in the width direction W. The size of the cartridge 5B in the width direction W is formed sufficiently larger than the size in the width direction W required to accommodate the clip unit 1. This ensures a sufficient area for the fingers to touch the cartridge 5B, making it easy to hold.

[0094] Figure 28 is a side view of cartridge system 100B, showing the state in which the sterilization paper 51b has been peeled off. As shown in Figure 28, when the lid part 51 is rotated beyond a predetermined angle, the sterilization paper 51b is peeled off. At this time, the insertion opening 67 is open. That is, the lid part 51 is in the second state P2. When the lid part 51 transitions from the first state P1 to the second state P2, the cartridge 5B is held in one hand, and the lid part 51 is moved by the thumb.

[0095] (Modification 2) [Cartridge System 100C] Next, a cartridge system 100C according to modification 2 will be described with reference to Figures 29 to 31 .

[0096] Figure 29 is a front view showing a cartridge system 100C. As shown in Figure 29, the cartridge system 100C has a clip unit 1 and a cartridge 5C. The cartridge 5C has a cartridge body 70, a storage region 7S, and a lid portion 51C. Comparing the cartridge system 100C with the cartridge system 100, the configuration of the lid portion 51C is different from the configuration of the lid portion 51.

[0097] Like the lid portion 51, the lid portion 51C is a member that can open and close the insertion opening 67. Like the lid portion 51, the lid portion 51C can transition between a first state P1 in which the insertion opening 67 is covered and a second state P2 in which the insertion opening 67 is open.

[0098] The lid portion 51C has a lid main body portion 51Cc, sterilization paper 51Cb, a first rotating shaft 51Ca, a biasing member 51Cd, a locking portion 51Ce, and a second rotating shaft 51Cf.

[0099] The lid main body 51Cc is a member that can open and close the insertion opening 67. The lid main body 51Cc is a plate-like member formed in a substantially rectangular shape. The lid main body 51Cc is made of a synthetic resin and is an elastically deformable member.

[0100] Sterilization paper 51Cb is adhered to the surface of the lid main body 51Cc facing the insertion opening 67. The sterilization paper 51Cb is a member that closes the gap between the lid main body 51Cc and the insertion opening 67. When the lid 51C is in the first position P1, the storage area 7S is in a sterilized state.

[0101] The lid main body 51Cc is attached so as to be movable relative to the cartridge body 70. For example, the lid main body 51Cc is connected so as to be rotatable relative to the cartridge body 70. When the lid main body 51Cc rotates relative to the cartridge body 70, the lid 51 transitions from the first state P1 to the second state P2. Note that the lid 51C may be configured to be slidable relative to the cartridge body 70 in the width direction W or the height direction H.

[0102] The lid main body 51Cc is rotatable about a first rotation shaft 51Ca whose axial direction is the height direction H. The first rotation shaft 51Ca is connected to an end of the first end surface 70a in the width direction W. The lid main body 51Cc is rotatable clockwise and counterclockwise when viewed from the height direction H.

[0103] The lid main body 51Cc is biased by a biasing member 51Cd in a direction away from the cartridge body 70. The biasing member 51Cd is provided between the lid main body 51Cc and the cartridge body 70 and biases the lid main body 51Cc in a direction away from the cartridge body 70. The biasing member 51Cd is, for example, a leaf spring (see FIG. 30).

[0104] The lid main body 51Cc is restricted from moving in a direction away from the cartridge body 70 by a locking portion 51Ce. The locking portion 51Ce is movably connected to the cartridge body 70 and is a member that can restrict the movement of the lid main body 51Cc. The locking portion 51Ce is, for example, rotatably connected to the cartridge body 70 and can transition between a state Pc1 in which the movement of the lid main body 51Cc is restricted and a state Pc2 in which the movement of the lid main body 51Cc is not restricted by rotation. The configuration of the locking portion 51Ce is not limited, and it may be provided so as to be slidable relative to the cartridge body 70 or the lid main body 51Cc in, for example, the width direction W or the height direction H.

[0105] The locking portion 51Ce is provided to be rotatable around a second rotation shaft 51Cf whose axial direction is the height direction H. The second rotation shaft 51Cf is provided on a side surface of the cartridge body 70 in the width direction W. The locking portion 51Ce is rotatable clockwise and counterclockwise when viewed from the height direction H.

[0106] Next, the operation of the cartridge 5C will be described with reference to Figures 30 and 31.

[0107] Figure 30 is a side view of the cartridge system 100C, showing how it is being held by a user. As shown in Figure 30, the cartridge 5C is held in one hand. At this time, the cover portion 51C is in the first state P1, and the storage area 7S is in a sterilized state. At this time, the locking portion 51Ce is in state Pc1. The cartridge 5C is held in one hand, for example, by placing the thumb on the locking portion 51Ce and sandwiching the cartridge body 70 between the fingers other than the thumb and the palm.

[0108] FIG. 31 is a side view of the cartridge system 100C, showing the state in which the insertion opening 67 is open. When the locking portion 51Ce is moved by the thumb, it transitions from state Pc1 to state Pc2. At this time, the locking portion 51Ce rotates in a direction away from the lid portion 51C. When the locking portion 51Ce reaches state Pc2, the restriction on the movement of the lid portion 51C is released. The lid portion 51C is then biased by the biasing member 51Cd in a direction away from the cartridge body 70, and rotates in a direction away from the cartridge body 70. When the lid portion 51C rotates beyond a predetermined angle, the insertion opening 67 is opened, as shown in FIG. 31. At this time, the lid portion 51C is in the second state P2. When the lid portion 51C transitions from the first state P1 to the second state P2, the cartridge 5C is being held in one hand, and the lid portion 51C is being biased by the biasing member 51Cd to move.

[0109] (Modification 3) [Cartridge System 100D] Next, a cartridge system 100D according to modification 3 will be described with reference to Figures 32 to 35 .

[0110] Figure 32 is a front view showing cartridge system 100D. Figure 33 is a side view showing cartridge system 100D. As shown in Figure 32, cartridge system 100D has a clip unit 1 and a cartridge 5D. Cartridge 5D has a cartridge body 70, a storage region 7S, and a lid portion 51D. Comparing cartridge system 100D with cartridge system 100, the configuration of lid portion 51D is different from the configuration of lid portion 51.

[0111] Like the lid portion 51, the lid portion 51D is a member that can open and close the insertion opening 67. Like the lid portion 51, the lid portion 51D can transition between a first state P1 in which the insertion opening 67 is covered and a second state P2 in which the insertion opening 67 is open.

[0112] In the first state P1, the lid portion 51D is formed integrally with the cartridge body 70. When the lid portion 51D is in the first state P1, there is no gap between the cartridge body 70 and the lid portion 51D, and the storage area 7S is in a sterile state.

[0113] The cartridge body 70 and the lid portion 51D are connected by a breaking portion 51Dg. When a force equal to or greater than a predetermined magnitude is applied to the breaking portion 51Dg, the breaking portion 51Dg breaks, and the lid portion 51D separates from the cartridge body 70. The breaking portion 51Dg is formed at the boundary between the cartridge body 70 and the lid portion 51D, which are formed integrally. The breaking portion 51Dg has a lower strength than the cartridge body 70 and the lid portion 51D. For example, the breaking portion 51Dg has a thinner thickness in the height direction H than the cartridge body 70D and the lid portion 51D. When a force in the height direction H is applied to the breaking portion 51Dg, if the magnitude of the force is equal to or greater than a predetermined magnitude, the lid portion 51D breaks in the height direction H and separates from the cartridge body 70.

[0114] Next, the operation of the cartridge 5D will be described with reference to Figures 34 and 35.

[0115] Figure 34 is a side view of the cartridge system 100D, showing how it is being held by a user. As shown in Figure 34, the cartridge 5D is held in one hand. At this time, the lid portion 51D is in the first state P1, and the storage area 7S is in a sterile state. The cartridge 5D is held in one hand, for example, with the thumb placed on the lid portion 51D and the cartridge body 70 sandwiched between the fingers other than the thumb and the palm of the hand.

[0116] Figure 35 is a side view showing the cartridge system 100D, showing the state in which the insertion opening 67 is open. A force is applied to the lid portion 51D by the thumb in the height direction H. When a force of a predetermined magnitude or greater is applied to the lid portion 51D, the breaking portion 51Dg breaks. When the breaking portion 51Dg breaks, the lid portion 51D separates from the cartridge body 70, and the insertion opening 67 is opened as shown in Figure 35. At this time, the lid portion 51D is in the second state P2. When the lid portion 51D transitions from the first state P1 to the second state P2, the cartridge 51D is being held in one hand, and the lid portion 51 is being moved by the thumb.

[0117] (Modification 4) [Cartridge System 100E] Next, a cartridge system 100E according to modification 4 will be described with reference to Figures 36 to 39 .

[0118] Figure 36 is a front view showing cartridge system 100E. As shown in Figure 36, cartridge system 100E has a clip unit 1 and a cartridge 5E. Cartridge 5E has a cartridge body 70, a storage region 7S, and a lid portion 51E. Comparing cartridge system 100E with cartridge system 100, the configuration of lid portion 51E is different from the configuration of lid portion 51.

[0119] Like the lid 51, the lid 51E is a member that can open and close the insertion opening 67. Like the lid 51, the lid 51E can transition between a first state P1 that covers the insertion opening 67 and a second state P2 that opens the insertion opening 67. When the lid 51E is in the first state P1, the storage area 7S is in a sterilized state.

[0120] The lid portion 51E has a lid main body portion 51Ec, sterilization paper 51Eb, and a knob portion 51Eh.

[0121] The lid main body 51Ec is a member that can open and close the insertion opening 67. The lid main body 51Ec is, for example, a columnar member. The lid main body 51Ec is made of a synthetic resin and is an elastically deformable member.

[0122] A sterilization paper 51Eb is provided between the lid main body 51Ec and the cartridge body 70. The sterilization paper 51Eb is a member that seals the gap between the lid main body 51Ec and the cartridge body 70. For example, the upper surface 51bs of the sterilization paper 51Eb is adhered to the lid main body 51Ec, and the lower surface 51bt is adhered to the first end surface 70a of the cartridge body 70. The sterilization paper 51Eb and the lid main body 51Ec are firmly adhered so that they will not separate even if pulled. The lid main body 51Ec is provided in a position that overlaps with the insertion opening 67 when viewed from the longitudinal direction L.

[0123] The knob 51Eh is a member that is held when moving the lid main body 51Ec. The knob 51Eh extends from the lid main body 51Ec in a direction away from the cartridge main body 70. The knob 51Eh is formed, for example, in a ring shape, and is a member that can be hooked with a finger. The shape of the knob 51Eh is not limited.

[0124] Next, the operation of the cartridge 5E will be described with reference to Figures 37 to 39.

[0125] Figure 37 is a front view of cartridge system 100E, showing the cartridge 5E being held by a user. As shown in Figure 37, the cartridge 5E is held in one hand. At this time, the lid portion 51E is in the first state P1, and the storage area 7S is in a sterile state. The cartridge 5E is held in one hand, for example, with the thumb hooked on the knob portion 51Eh and the cartridge body 70 sandwiched between the fingers other than the thumb and the palm of the hand.

[0126] Figure 38 is a front view of the cartridge system 100E, showing the sterilization paper 51Eb being torn. When force is applied to the tab 51Eh, the force is transmitted to the sterilization paper 51Eb via the lid body 51Ec, causing the sterilization paper 51Eb to tear, as shown in Figure 38. The sterilization paper 51Eb can be torn by pulling the tab 51Eh away from the cartridge body 70, or by pushing the tab 51Eh toward the cartridge body 70. The sterilization paper 51Eb being torn releases the sterilization state of the storage area 7S. At this time, the cartridge 5E is held in one hand, and the sterilization paper 51Eb is torn with the thumb.

[0127] Figure 39 is a front view of the cartridge system 100E, showing the state in which the insertion opening 67 is open. After the sterilization paper 51Eb is torn, the lid part 51E is further separated from the cartridge body 70, thereby opening the insertion opening 67, as shown in Figure 39. At this time, the lid part 51E is in the second state P2. When the lid part 51E transitions from the first state P1 to the second state P2, the cartridge 5E is being held in one hand, and the lid part 51E is being moved by the thumb.

[0128] Although the first embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment and includes design modifications within the scope of the present invention. Furthermore, the components shown in the above embodiment and the following modified examples can be appropriately combined to form a configuration.

[0129] Second Embodiment [Cartridge System 100F] A cartridge system 100F according to a second embodiment of the present invention will be described with reference to Figures 40 to 48. The cartridge system 100F according to the second embodiment differs from the cartridge system 100 of the first embodiment in the configuration of the cartridge, etc. In the following description, configurations that are common to those already described will be assigned the same reference numerals, and duplicated description will be omitted.

[0130] Figure 40 is a front view of cartridge system 100F, showing the cartridge system 100F packaged in a sterilization pack 400F. Note that the cartridge 5F shown in Figure 40 does not include components such as the storage area 7S.

[0131] 40 , the cartridge system 100F includes a clip unit 1 and a cartridge 5F that can accommodate the clip unit 1. Like the cartridge system 100, the cartridge system 100F is a support system for easily loading the clip unit 1 into the clip introduction device 200.

[0132] [Cartridge 5F] Like the cartridge 5, the cartridge 5F is a case that stores the clip unit 1. As shown in Figure 40, the cartridge 5F has a cartridge body 70 formed in a substantially rectangular box shape and a storage area 7S formed inside the cartridge body 70.

[0133] The configuration of the cartridge body 70 is the same as that of the first embodiment. For example, the cartridge body 70 has an insertion opening (opening) 67 that communicates with the storage region 7S, similar to the first embodiment. However, the configuration of the cartridge body 70 is not limited thereto and may be different from that of the first embodiment.

[0134] The configuration of the storage area 7S is the same as that of the first embodiment. However, the configuration of the storage area 7S is not limited and may be different from that of the first embodiment.

[0135] The cartridge 5 is provided with a lid 51, whereas the cartridge 5F is not provided with a lid. Therefore, in order to store the clip unit 1 in a sterile condition, the cartridge 5F needs to be packaged in a sterilization pack 400F.

[0136] [Sterilization pack 400F] Figure 41 is a cross-sectional view taken along line F41-F41 of sterilization pack 400F shown in Figure 40. As shown in Figures 40 and 41, sterilization pack 400F is a bag-shaped member capable of packaging cartridge system 100F. Sterilization pack 400F can package cartridge system 100F while maintaining the interior in a sterile state.

[0137] As shown in Figure 40, the sterilization pack 400F has a pack body 400Fa and a pack lid (lid) 400Fb.

[0138] The pack main body 400Fa is formed in a bag shape and can package the cartridge 5F. The pack main body 400Fa is formed from a material that is impermeable to viruses and bacteria. The pack main body 400Fa is formed, for example, to include a sterilization film. The pack main body 400Fa is formed, for example, to include a transparent member. When the pack main body 400Fa is formed to include a transparent member, it is easy to check the state inside the sterilization pack 400F, making work easier.

[0139] A pack opening 400Fo is formed at the end 400Fc of the pack body 400Fa. The pack opening 400Fo is formed to a size that allows the cartridge 5F to be inserted therethrough. The size of the pack opening 400Fo is not limited. For example, the pack opening 400Fo may be large enough to allow the sheath 220 or the operating wire 230 of the clip introduction device 200 to be inserted therethrough.

[0140] The end 400Fc of the pack body 400Fa is configured to be deformable when force is applied. For example, when force is applied from both ends in the width direction W, the end 400Fc bends and widens in the height direction H, widening the pack opening 400Fo (see FIGS. 43 to 45).

[0141] Specifically, the length of the end 400Fc of the pack body 400Fa in the width direction W is greater than the length in the height direction H. Therefore, the pack opening 400Fo has a shape that is long in the width direction W. Furthermore, a plate-shaped elastic member 400Fd is arranged along the width direction W at the end 400Fc. Therefore, when no force is applied to the end 400Fc, the pack opening 400Fo maintains its shape that is long in the width direction W.

[0142] When force is applied to the end portion 400Fc from both ends in the width direction W, the plate-shaped elastic member 400Fd elastically deforms and curves so as to expand in the height direction H. As a result, the pack opening 400Fo is deformed into a shape that is expanded in the height direction H compared to before the force was applied.

[0143] The end 400Fc of the pack body 400Fa can be deformed by applying force from both ends in the width direction W, so the shape of the pack opening 400Fo can be deformed with one hand. The configuration of the end 400Fc of the pack body 400Fa is not limited as long as it is configured to allow the shape of the pack opening 400Fo to be deformed with one hand. For example, a four-bar link may be disposed on the end 400Fc, and the shape of the pack opening 400Fo may be deformed in accordance with the movement of the link.

[0144] The pack opening 400Fo is closed by the pack lid 400Fb. The cartridge 5F is packaged in the sterilization pack 400F with the insertion opening 67 facing the pack opening 400Fo. Therefore, the pack lid 400Fb is positioned so as to overlap with the insertion opening 67 when viewed from the longitudinal direction L.

[0145] The pack lid part 400Fb can transition between a first state Pf1 and a second state Pf2. In the first state Pf1, the pack lid part 400Fb covers the insertion opening 67. In the second state Pf2, the pack lid part 400Fb does not cover the insertion opening 67, leaving the insertion opening 67 open.

[0146] The pack lid 400Fb is formed, for example, from sterile paper. As shown in Figure 41, the pack opening 400Fo is closed by adhering a piece of sterile paper curved in a mountain-like shape to the inside of the end 400Fc. The adhesive is applied so that no gap is formed between the end 400Fc and the sterile paper. At this time, the pack lid 400Fb covers the insertion opening 67 and is in the first state Pf1.

[0147] When the shape of the pack opening 400Fo is deformed, the sterilization paper breaks, causing the pack lid 400Fb to change from the first state Pf1 to the second state Pf2. That is, when both ends of the end 400Fc of the sterilization pack 400F are subjected to force in the width direction W, the pack lid 400Fb transitions from the first state Pf1 to the second state Pf2. At this time, because the shape of the pack opening 400Fo can be deformed with one hand, the pack lid 400Fb can transition from the first state Pf1 to the second state Pf2 with one hand.

[0148] [Operation of Sterilization Pack 400F] Next, the operation of the sterilization pack 400F will be described with reference to Figures 42 to 45.

[0149] Figure 42 is a front view of a sterilization pack 400F packaging a cartridge system 100F, showing the pack being held by a user. As shown in Figure 42, the sterilization pack 400F is held in one hand. For example, the sterilization pack 400F is held in one hand with the thumb and index finger placed on both ends of the end 400Fc in the width direction W. At this time, the pack lid 400Fb is in the first position Pf1, and the inside of the sterilization pack 400F is maintained in a sterile state.

[0150] Figure 43 is a plan view of sterilization pack 400F, showing the application of force from both ends in the width direction W. As shown in Figure 43, pack opening 400Fo of sterilization pack 400F is deformed when force is applied from both ends in the width direction W of end 400Fc. Pack opening 400Fo curves so as to widen in the height direction H. At this time, end 400Fc pulls pack lid 400Fb in the height direction H. A user can apply force to end 400Fc with their thumb and index finger while holding sterilization pack 400F in one hand.

[0151] Figure 44 is a plan view of a sterilization pack 400F, showing the pack lid 400Fb breaking. As shown in Figure 44, when a force greater than a predetermined magnitude is applied to the end 400Fc, the pack lid 400Fb breaks. Specifically, the pack lid 400Fb can no longer withstand the force pulling it in the height direction H, and a crack forms in the pack lid 400Fb along the width direction W. More specifically, the sterilization paper forming the pack lid 400Fb breaks. At this time, the sterilization state inside the sterilization pack is released. A user can apply force to the end 400Fc with their thumb and index finger while holding the sterilization pack 400F in one hand.

[0152] For example, if the pack lid 400Fb has a guide groove formed along the width direction W, the pack lid 400Fb can be easily torn. On the other hand, if a guide groove is formed in the pack lid 400Fb, it needs to be formed to an extent that the sterilization of the interior can be ensured.

[0153] Figure 45 is a plan view of sterilization pack 400F, showing the insertion opening 67 open. As shown in Figure 45, when further force is applied to end 400Fc, the shape of pack opening 400Fo is further deformed, opening insertion opening 67. That is, pack lid 400Fb is in the second state Pf2. When sterilization pack 400F is held in one hand, the hand holding sterilization pack 400F transitions pack lid 400Fb from the first state Pf1 to the second state Pf2. Sterilization pack 400F is characterized in that when both ends of end 400Fc in the width direction W are subjected to force, pack lid 400Fb transitions from the first state Pf1 to the second state Pf2.

[0154] (Modification 5) [Sterilization Pack 400G] Next, a sterilization pack 400G of modification 5 will be described with reference to Figure 46 .

[0155] Figure 46 is a side view showing a sterilization pack 400G which is a modification of sterilization pack 400F. As shown in Figure 46, sterilization pack 400G has a pack lid 400Gb which has a different configuration from pack lid 400Fb.

[0156] The pack lid 400Gb may be provided with sterilization paper covering the outside of the end 400Fc. The sterilization paper forming the pack lid 400Gb is adhered to the outside of the end 400Fc. In this case, the adhesion is such that no gap is formed between the pack body 400Fa and the pack lid 400Fb, and the inside of the sterilization pack 400F is kept sterile.

[0157] (Modification 6) [Sterilization Pack 400H] Next, a sterilization pack 400H according to modification 6 will be described with reference to Figures 47 and 48 .

[0158] Figure 47 is a side view showing a sterilization pack 400H which is a modification of sterilization pack 400F. As shown in Figure 47, sterilization pack 400H has a pack lid 400Hb which has a different configuration from pack lid 400Fb.

[0159] The pack lid part 400Hb may be formed to include a first sterilization paper 400Hm and a second sterilization paper 400Hn. When the pack lid part 400Hb is in the first state Pf1, the first sterilization paper 400Hm and the second sterilization paper 400Hn are adhered to each other.

[0160] The first sterilized paper 400Hm is adhered to the end 400Fc along the width direction W. The first sterilized paper 400Hm and the end 400Fc are adhered so that no gaps are formed between them. The second sterilized paper 400Hn is arranged alongside the first sterilized paper 400Hm in the height direction H. The second sterilized paper 400Hn is adhered to the end 400Fc along the width direction W. The second sterilized paper 400Hn and the end 400Fc are adhered so that no gaps are formed between them.

[0161] When the pack lid 400Hb is in the first position Pf1, as shown in Figure 47, the first sterilization paper 400Hm and the second sterilization paper 400Hn are bonded together in the width direction W. The first sterilization paper 400Hm and the second sterilization paper 400Hn are bonded together so that no gaps are formed. When the first sterilization paper 400Hm and the second sterilization paper 400Hn are bonded together at the end 400Fc, the pack opening 400Fo is closed without any gaps, so the inside of the sterilization pack 400GH is in a sterile state.

[0162] Figure 48 is a side view of a sterilization pack 400H, showing the pack lid 400Hb in the second state Pf2. The adhesive strength between the first sterilization paper 400Hm and the edge 400Fc is greater than the adhesive strength between the first sterilization paper 400Hm and the second sterilization paper 400Hn. Furthermore, the adhesive strength between the second sterilization paper 400Hn and the edge 400Fc is greater than the adhesive strength between the first sterilization paper 400Hm and the second sterilization paper 400Hn. Therefore, when the pack opening 400Fo is deformed, the adhesive between the first sterilization paper 400Hm and the second sterilization paper 400Hn is released, as shown in Figure 48. When the adhesive between the first sterilization paper 400Hm and the second sterilization paper 400Hn is released, the insertion opening 67 is opened, and the pack lid 400Hb is in the second state Pf2. When the adhesion between the first sterilization paper 400Hm and the second sterilization paper 400Hn is released, the pack lid portion 400Hb transitions from the first state Pf1 to the second state Pf2.

[0163] In the sterilization pack 400H shown in Figure 47, the pack opening 400Fo is closed by adhering the first sterilization paper 400Hm and the second sterilization paper 400Hn to the inside of the end 400Fc. The positions at which the first sterilization paper 400Hm and the second sterilization paper 400Hn are adhered are not limited. As in the sterilization pack 400G according to variant 5 shown in Figure 46, the sterilization paper may be arranged to cover the outside of the end 400Fc.

[0164] Specifically, the first sterilization paper 400Hm and the second sterilization paper 400Hn may be arranged to cover the outside of the edge 400Fc. In this case, the first sterilization paper 400Hm and the second sterilization paper 400Hn are arranged with the edge 400Fc sandwiched between them in the height direction H. The first sterilization paper 400Hm and the second sterilization paper 400Hn are adhered to the outside of the edge 400Fc along the width direction W. When the pack lid 400Hb is in the first state Pf1, the first sterilization paper 400Hm and the second sterilization paper 400Hn are adhered so that no gaps are formed, ensuring the sterilization of the inside of the sterilization pack 400H.

[0165] Although the second embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment and includes design modifications within the scope of the present invention. Furthermore, the components shown in the above embodiment and the modified examples shown below can be configured by appropriately combining them.

[0166] (Third Embodiment) [Cartridge System 100I] A cartridge system 100I of a third embodiment will be described with reference to Figures 49 to 52. The cartridge system 100I of the third embodiment differs from the cartridge system 100 of the first embodiment in the configuration of the cartridge, etc. In the following description, configurations that are common to those already described will be assigned the same reference numerals, and duplicate description will be omitted.

[0167] Figure 49 is a perspective view of cartridge system 100I, showing the cartridge system 100I packaged in a sterilization pack 400I. Note that the cartridge 5I shown in Figure 49 does not include components such as a storage area 7S.

[0168] 49 , the cartridge system 100I has a clip unit 1 and a cartridge 5I capable of accommodating the clip unit 1. The cartridge system 100I is a support system for easily loading the clip unit 1 into a clip introducer device 200I. The clip introducer device 200I is a device having a different configuration from the clip introducer device 200.

[0169] [Clip introducer device 200I] Figure 50 is a perspective view showing clip introducer device 200I. As shown in Figure 50, clip introducer device 200I includes a sheath 220, an operating wire 230, an operating section 240, and a protrusion 200Is used when opening a sterilization pack 400I.

[0170] Like the clip introducer device 200 of the first embodiment, the clip introducer device 200I is inserted into, for example, a treatment tool insertion channel of an endoscope and used in combination with the endoscope. The clip introducer device 200I differs from the clip introducer device 200 in that it has a protrusion 200Is. The configurations of the sheath 220, operating wire 230, and operating unit 240 are the same as those of the first embodiment. However, the configurations of the sheath 220, operating wire 230, and operating unit 240 are not limited and may be different from those of the first embodiment.

[0171] The protrusion 200Is is a member used when opening the sterilization pack 400I. The protrusion 200Is has a sharp shape and can be used, for example, to tear sterilized paper or sterilized film. The protrusion 200Is is provided in a position on the operating unit 240 where it does not interfere with the operation of the clip introduction device 200. The protrusion 200Is is provided, for example, so as to protrude from the rotating grip 241b. The configuration of the protrusion 200Is is not limited. The protrusion 200Is may be provided, for example, at the boundary between the slit portion 241a and the rotating grip 241b.

[0172] [Cartridge 5I] Like the cartridge 5, the cartridge 5I is a case that stores the clip unit 1. As shown in Figure 49, the cartridge 5I has a cartridge main body 70 formed in a substantially rectangular box shape and a storage area 7S formed inside the cartridge main body 70.

[0173] The configuration of the cartridge body 70 is the same as that of the first embodiment. For example, the cartridge body 70 has an insertion opening (opening) 67 that communicates with the storage region 7S, similar to the first embodiment. However, the configuration of the cartridge body 70 is not limited thereto and may be different from that of the first embodiment.

[0174] The configuration of the storage area 7S is the same as that of the first embodiment. However, the configuration of the storage area 7S is not limited and may be different from that of the first embodiment.

[0175] The cartridge 5 is provided with a lid 51, whereas the cartridge 5I is not provided with a lid. Therefore, in order to store the clip unit 1 in a sterile condition, the cartridge 5I needs to be packaged in a sterilization pack 400F.

[0176] [Sterilization pack 400I] The sterilization pack 400I is a bag-shaped member capable of packaging the cartridge system 100I, as shown in Figure 49. The sterilization pack 400I can package the cartridge system 100I while maintaining the interior in a sterile state.

[0177] As shown in Figure 49, the sterilization pack 400I has a pack body 400Ia and a pack lid 400Fb.

[0178] The pack main body 400Ia is formed in a bag shape and can package the cartridge 5I. The pack main body 400Ia is formed from a material that is impermeable to viruses and bacteria. The pack main body 400Ia is formed to include, for example, a sterilization film. The pack main body 400Ia is formed to include, for example, a transparent member. When the pack main body 400Ia is formed to include a transparent member, it is easy to check the state of the inside of the sterilization pack 400I, making work easier.

[0179] An opening formed at the end of the pack body 400Ia is closed by the pack lid 400Ib. The cartridge 5I is packaged in the sterilization pack 400I with the insertion opening 67 facing the pack lid 400Ib. Therefore, the pack lid 400Ib is located in a position that overlaps with the insertion opening 67 when viewed from the longitudinal direction L. Because the opening of the pack body 400Ia is closed by the pack lid 400Ib, the inside of the sterilization pack 400I is maintained in a sterilized state.

[0180] The pack lid part 400Fb can transition between a first state Pi1 and a second state Pi2. In the first state Pi1, as shown in Figure 49, the pack lid part 400Ib covers the insertion opening 67. In the second state Pi2, the pack lid part 400Ib does not cover the insertion opening 67, leaving the insertion opening 67 open.

[0181] The pack lid 400Ib includes a lid body 400Ie and sterilization paper 400If. The lid body 400Ie is, for example, a plate-shaped member. The pack body 400Ia and the lid body 400Ie are bonded together so that no gaps are formed.

[0182] The lid main body 400Ie has an opening (not shown) formed at a position overlapping the insertion opening 67 when viewed from the longitudinal direction L. The opening formed in the lid main body 400Ie is sized to allow the sheath 220 or the operating wire 230 of the clip introduction device 200I to be inserted therethrough. The opening may also be sized to allow, for example, the cartridge 5I to be inserted therethrough. The opening formed in the lid main body 400Ie is closed by sterilized paper 400If.

[0183] The sterilization paper 400If is larger than the opening formed in the lid body 400Ie. The sterilization paper 400If is adhered to the lid body 400Ie so that no gaps are formed. When the opening formed in the lid body 400Ie is closed by the sterilization paper, the inside of the sterilization pack 400I is maintained in a sterile state, and the pack lid 400Ib is in the first state Pi1.

[0184] The sterilization paper 400If is positioned so as to overlap the insertion opening 67 when viewed from the longitudinal direction L. When the sterilization paper 400If is torn, the sterilization state inside the sterilization pack 400I is released and the insertion opening 67 is opened. When the insertion opening 67 is opened, the pack lid 400Ib enters the second state Pi2.

[0185] [Operation of Clip Introducing Device 200I] Next, the operation of the clip introducing device 200I will be described with reference to FIG.

[0186] Figure 51 shows the protrusion 200Is being used to open the sterilization pack 400I. As shown in Figure 51, the protrusion 200Is can be used to open the sterilization pack 400I. The sharp structure of the protrusion 200Is tears the sterilization paper 400If, opening the insertion opening 67 and placing the pack lid 400Ib in the second position Pi2. At this time, the user can hold the sterilization pack 400I in one hand while grasping the clip introducer device 200 with the other hand to use the protrusion 200Is. Because the user can open the sterilization pack 400I while holding the clip introducer device 200, there is no need to reposition the clip introducer device 200. This eliminates the need to effortlessly attach the clip unit 1 to the clip introducer device 200.

[0187] (Modification 7) [Clip Introducing Device 200J] Next, a clip introducing device 200J according to Modification 7 will be described with reference to FIG.

[0188] Fig. 52 is a perspective view showing a clip introducer device 200J, which is a modification of the clip introducer device 200I. As shown in Fig. 52, the clip introducer device 200J has a protrusion 200Js having a different shape from the protrusion 200Is.

[0189] The protrusion 200Js has a generally V-shaped configuration, and a sharp member is arranged along the operating part 240. Therefore, by moving the clip introduction device 200J in the longitudinal direction of the operating part 240, the sterilized paper 400If can be broken.

[0190] Although the fifth embodiment of the present invention has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment and includes design modifications within the scope of the present invention. Furthermore, the components shown in the above embodiment and the modified examples shown below can be configured by appropriately combining them.

[0191] 100 Cartridge system 1 Clip unit 2 Clip 21 Arm 22 Tissue gripping portion 23 Grip portion 24 Sliding portion 25 Engagement portion 28 Base end portion 3 Holding member 3A Holding tube 3B Pipe 30 Holding tube main body 31 Protruding and recessed wing 32 Fastening member 38 Internal space 4 Connecting member 41 Distal end connecting portion 42 Base end connecting portion 43 Connecting portion main body 44 Connecting arm 45 Rod-shaped portion 5 Cartridge 51 Lid portion 51a Rotating shaft 51b Sterile paper 67 Insertion port 70 Cartridge main body 7S Storage region 71 First region 73 Folding region 74 Sheath insertion region 76 Sheath abutment portion 200 Clip introduction device (applicator) 220 Sheath 221 Distal tip 222 Distal end coil 224 Proximal coil 230 Operating wire 231 Arrowhead hook 232 Wire 240 Operating section 241 Operating section main body 242 Slider 248 Thumb ring 400F Sterilization pack (pack) P1 First state P2 Second state

Claims

1. A cartridge system comprising: a clip unit that can be loaded into an applicator; and a case that houses the clip unit, wherein the case has a case main body portion formed with an opening through which the applicator can be inserted; and a lid that can open and close the opening, and the lid can transition between a first state that covers the opening and a second state that opens the opening.

2. The cartridge system according to claim 1, wherein the case can be held with one hand, and the lid is positioned so that when the case is held with one hand, the lid can be changed from the first state to the second state with the thumb.

3. The cartridge system according to claim 1, wherein the case is formed with a storage area capable of accommodating the clip unit and communicating with the opening, and the storage area is maintained in a sterile state when the lid is in the first state.

4. The cartridge system according to claim 1, wherein the lid is formed to include sterile paper, and the lid is in the first state when the opening is covered with the sterile paper.

5. A cartridge system as described in claim 1, wherein the case main body has a first end face in which the opening is formed, and the lid transitions from the first state to the second state by moving the lid in a direction away from the first end face in an insertion direction in which the applicator is inserted into the opening.

6. A cartridge system as described in claim 1, wherein the case main body has a first end face in which the opening is formed, and the lid transitions from the first state to the second state by moving the lid in a direction away from the first end face in a width direction intersecting an insertion direction in which the applicator is inserted into the opening.

7. The cartridge system according to claim 1, wherein the lid is rotatably connected to the case main body, and the lid transitions from the first state to the second state by rotating the lid relative to the case main body.

8. The cartridge system according to claim 7, wherein the lid is rotatable about an axial direction of a rotation axis that is a height direction intersecting with an insertion direction in which the applicator is inserted into the opening and an opening / closing direction in which the clip unit can be opened and closed.

9. The cartridge system according to claim 7, wherein the cover is rotatable about an axial direction of a rotation axis that is the opening and closing direction in which the clip unit can be opened and closed.

10. A cartridge system as described in claim 1, wherein the lid has a lid main body portion capable of opening and closing the opening, a biasing member that biases the lid main body portion in a direction away from the case main body portion, and a locking portion that restricts movement of the lid main body portion in the direction away from the case main body portion, and the lid transitions from the first state to the second state when the restriction by the locking portion is released.

11. A cartridge system as described in claim 1, wherein in the first state, the case main body and the lid are connected by a breaking portion that can be broken when a force of a predetermined magnitude or greater is applied, and the lid transitions from the first state to the second state when the breaking portion is broken and the lid is separated from the case.

12. The cartridge system described in claim 1, wherein the lid has a lid main body portion capable of opening and closing the opening, and a knob portion that is a member to be held when moving the lid main body portion and extends from the lid main body portion in a direction away from the case main body portion, and the lid transitions from the first state to the second state when the lid main body portion and the knob portion become one unit and the lid separates from the case.

13. A cartridge system comprising: a clip unit connectable to an applicator; a case that houses the clip unit; and a pack that houses the case in a sterile state, wherein the case has an opening through which the applicator can be inserted; the pack has a lid at a position that overlaps the opening when viewed from the insertion direction of the applicator; the lid is capable of transitioning between a first state that covers the opening and a second state that opens the opening; and when the pack is held in one hand, the lid can be transitioned from the first state to the second state by the hand holding the pack.

14. A cartridge system comprising: a clip unit connectable to an applicator; a case accommodating the clip unit; and a pack accommodating the case in a sterile state, wherein the case has an opening through which the applicator can be inserted; the pack has a lid positioned to overlap the opening when viewed from the insertion direction of the applicator; the lid is capable of transitioning between a first state that covers the opening and a second state that opens the opening; and the lid transitions from the first state to the second state when both ends of the pack receive force in a width direction intersecting the insertion direction of inserting the applicator into the opening.

15. The cartridge system according to claim 14, wherein the pack is capable of applying force to both ends in the width direction with one hand.

16. The cartridge system according to claim 14, wherein the lid is formed to include sterilized paper, and when both ends of the pack are subjected to a force in the width direction, the sterilized paper is torn and the lid transitions from the first state to the second state.

17. The cartridge system according to claim 16, wherein the pack has an elastically deformable elastic member at the end where the opening is formed.

18. The cartridge system of claim 16, wherein the sterilization paper is glued to the inside of the end of the lid.

19. The cartridge system according to claim 16, wherein the sterilization paper is adhered to the lid so as to cover the outside of the end portion.

20. A cartridge system as described in claim 14, wherein the lid has a first sterilized paper and a second sterilized paper adhered to the first sterilized paper, and when both ends of the pack are subjected to a force in the width direction, the adhesion between the first sterilized paper and the second sterilized paper is released, and the lid transitions from the first state to the second state.

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