Cartridge system

Abstract

This cartridge system comprises: a treatment tool that can be loaded into an applicator; a cartridge that has formed therein an insertion port into which the applicator can be inserted in an insertion direction, and that accommodates the treatment tool; and a pack in which is formed a storage region in which the cartridge can be accommodated. The cartridge can transition to a first mode in which the cartridge is accommodated in the storage region of the pack and a second mode in which at least a portion of the cartridge sticks out from the storage region. The pack is opened by the cartridge transitioning from the first mode to the second mode.

Description

Cartridge System

[0001] The present invention relates to a cartridge system containing an endoscopic treatment tool. This application claims priority to U.S. Provisional Patent Application No. 63 / 632,731, filed April 11, 2024, and U.S. Provisional Patent Application No. 63 / 649,465, filed May 20, 2024, the contents of which are incorporated herein by reference.

[0002] In endoscopic treatment, treatment tools such as clip units and forceps are used. The treatment tools are introduced into the treatment site by an applicator (introduction device) that can be inserted through a channel of the endoscope.

[0003] A cartridge is used when attaching a treatment tool to an applicator. The cartridge contains the treatment tool in advance, and the treatment tool is kept in a sterile state. For example, in Patent Document 1, the cartridge containing the treatment tool is packaged in a sterilization pack. When attaching the treatment tool to the applicator, it is necessary to tear the sterilization pack using both hands and remove the cartridge from the sterilization pack.

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

[0005] However, in endoscopic treatment, the procedure of attaching a treatment tool to an applicator is performed multiple times, and it is necessary to use both hands to tear the sterilization pack and remove the cartridge from the pack each time, which can lengthen the 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 treatment tool 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 treatment tool loadable into an applicator, a cartridge having an insertion opening through which the applicator can be inserted in an insertion direction and containing the treatment tool, and a pack having a storage area capable of containing the cartridge, the cartridge being capable of transitioning between a first form in which it is contained in the storage area of ​​the pack and a second form in which at least a portion of the cartridge protrudes from the storage area, and the pack is opened by transitioning the cartridge from the first form to the second form.

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

[0009] 17. A perspective view showing a cartridge system according to a first embodiment. A perspective view showing a clip introduction device. A perspective view showing a clip unit. A plan view showing a cartridge. A side view showing the cartridge. A plan view showing a sterilization pack. A side view showing the sterilization pack. A side view showing the cartridge system, showing the cartridge transitioning from a first configuration to a second configuration. A side view of the cartridge system, showing the cartridge transitioned to the second configuration. A perspective view showing the cartridge being unsealed. A perspective view showing the cartridge being unsealed. A perspective view showing the cartridge being unsealed. A view showing the clip unit connected to the clip introduction device. A view showing the clip unit connected to the clip introduction device. A view showing the clip unit being pulled out from the cartridge. A plan view showing a cartridge system according to a first modification. A cross-sectional view of the cartridge system shown in FIG. 16 taken along line F17-F17. A view showing the cartridge transitioning from the first configuration to the second configuration. A view showing the cartridge transitioned to the second configuration. A plan view showing a cartridge system according to a second modification. A side view showing the cartridge system. A view showing the cartridge transitioning from the first configuration to the second configuration. A view showing the cartridge transitioned to the second configuration. 10 is a plan view showing a cartridge system according to Modification 3. FIG. 11 is a side view showing the cartridge system. FIG. 12 is a view showing a state in which the cartridge has transitioned to the second form. FIG. 13 is a side view showing a cartridge system according to Modification 4. FIG. 14 is a view showing a state in which the cartridge has transitioned to the second form. FIG. 15 is a plan view showing a cartridge system according to a second embodiment. FIG. 16 is a side view showing the cartridge system. FIG. 17 is a front view showing the cartridge system. FIG. 18 is a side view showing a state in which the cartridge has transitioned to the second form. FIG. 19 is a front view showing the cartridge system according to a third embodiment.47. A side view showing the cartridge in a state where it has transitioned to the second form. A front view showing the cartridge in a state where it has transitioned to the second form. A view showing the cartridge being opened by a user. A view showing the cartridge being opened by a user. A view showing the cartridge being opened by a user. A view showing the cartridge being opened by a user. A plan view showing a cartridge system according to Modification 6. A side view showing the cartridge system. A detailed view of the area surrounded by dashed line D45 of the cartridge shown in FIG. 43. A side view showing the sterilization pack of the cartridge in a state where it has transitioned to the second form. A perspective view showing the cartridge in a state where it has transitioned to the second form. A detailed view of the area indicated by dashed line D48 of the cartridge shown in FIG. 47. A plan view showing a cartridge system according to Modification 7. A perspective view showing the cartridge system in use. A plan view showing a cartridge system according to Modification 8. A side view showing the cartridge system. A side view showing the cartridge system. A side view showing the cartridge in a state where it has transitioned to the second form. A front view showing the cartridge in a state where it has transitioned to the second form. A side view showing a modification of the cartridge. A plan view showing a cartridge system according to Modification 9. A plan view showing the cartridge system. 64. A side view showing the sterilization pack being opened. A cross-sectional view showing a modified version of the sterilization pack. A cross-sectional view showing a modified version of the sterilization pack. A cross-sectional view showing a modified version of the sterilization pack, showing the sterilization pack being opened. A plan view of a cartridge system according to a fourth embodiment. A cross-sectional view showing a cross-section along line F63-F63 of the cartridge system shown in Figure 62. A plan view of the cartridge system, showing the sterilization pack having been opened. A cross-sectional view of the cartridge system, shown along line F65-F65 of the cartridge system shown in Figure 64, showing the sterilization pack having been opened. A plan view of a cartridge system according to a fifth embodiment. A perspective view showing the sterilization pack being opened. A plan view of a modified version of the sterilization pack.

[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 [Cartridge System 700] A cartridge system 700 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 28. FIG.

[0012] Fig. 1 is a perspective view showing a cartridge system 700. As shown in Fig. 1, the cartridge system 700 includes a cartridge unit 100 and a sterilization pack (pack) 400. The cartridge system 700 is a support system for easily loading a clip unit 1 into a clip introduction device (applicator) 200.

[0013] As shown in Fig. 1, the cartridge unit 100 is packaged in a sterilization pack 400. As shown in Fig. 1, the cartridge unit 100 has a clip unit 1 and a cartridge 5 that can accommodate the clip unit 1. By using the cartridge unit 100, the clip unit 1 can be easily loaded into the clip introduction device 200.

[0014] In this embodiment, the clip unit 1 is housed in the cartridge 5, but what is housed in the cartridge 5 is not limited to the clip unit 1. The cartridge 5 houses a treatment tool that can be loaded into the applicator. For example, the cartridge 5 houses forceps, a knife, etc.

[0015] [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.

[0016] 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.

[0017] 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 .

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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 .

[0023] [Clip Unit 1] Fig. 3 is a perspective view showing the clip unit 1. As shown in Fig. 3, the clip unit 1 includes a clip 2, a pressing member 3, and a connecting member 4.

[0024] 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."

[0025] The clip (clip arm) 2 is formed by bending a metal plate at the center. As shown in Figure 3, the clip 2 has a pair of openable and closable arms 21. The base end A2 of the clip 2 is inserted into the internal space of the pressing member 3.

[0026] 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.

[0027] 3, tissue gripping portions 22 are formed at the ends of the tip side A1 of the first arm 211 and the second arm 212. The tissue gripping portions 22 are formed by bending the tips of the first arm 211 and the second arm 212 inward.

[0028] The holding member (tubular member) 3 is a cylindrical member capable of storing at least a portion of the clip 2. The holding member 3 has an internal space through which the clip 2 advances and retreats in the longitudinal direction A. The holding member 3 can fix the clip 2 in a closed state after it has been retracted into the internal space. As shown in Figure 3, the holding member 3 has a holding tube 3A provided on the base end side A2 and a holding pipe 3B provided on the tip end side A1.

[0029] The pressure tube (second tubular member) 3A is formed in a cylindrical shape by injection molding a thermoplastic resin having a suitable elasticity, such as PPA (polyphthalamide), PA (polyamide), PEEK (polyether ether ketone), or LCP (liquid crystal polymer), which is softer than the clip 2. Note that the pressure tube 3A may be formed from a metal instead of a thermoplastic resin.

[0030] 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.

[0031] The connecting member 4 is detachably connected to the base end 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 together.

[0032] [Cartridge 5] Fig. 4 is a plan view showing the cartridge 5. Fig. 5 is a side view showing the cartridge 5.

[0033] 4 and 5, 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.

[0034] The cartridge 5 is manufactured by injection molding from a transparent resin material with 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 the clip unit 1 is present inside.

[0035] 4 and 5 , of two mutually perpendicular directions perpendicular to the longitudinal direction (insertion direction) L of the cartridge 5, one is referred to as the "width direction W" and the other as the "height direction H." 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." In addition, in the cartridge 5 storing the clip unit 1, the pair of arms 21 side is referred to as the distal end side L1 of the cartridge 5, and the connecting member 4 side is referred to as the proximal end side L2 of the cartridge 5.

[0036] As shown in Figures 4 and 5, the cartridge 5 has a cartridge body (case main body) 70 formed in an approximately rectangular box shape, a treatment tool storage area 7S formed inside the cartridge body 70, an insertion port (opening) 67 formed in the cartridge body 70, and a support member 8 capable of supporting the cartridge body 70.

[0037] The cartridge body 70 is formed with a treatment tool 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. 4, the treatment tool storage area 7S has a first area 71 and a sheath insertion area 74. The first area 71 and the sheath insertion area 74 are arranged from the distal end side L1 to the proximal end side L2 in the longitudinal direction L of the cartridge 5.

[0038] 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.

[0039] 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 sheath insertion region 74.

[0040] The sheath insertion region 74 is a region into which the distal end portion of the sheath 220 is inserted after passing through the insertion port 67. The sheath insertion region 74 is located on the proximal end side L2 of the first region 71 and communicates with the first region 71.

[0041] A protrusion 51 is formed on the cartridge body 70. The protrusion 51 is a member that can break the sterilization pack 400. The protrusion 51 is a member that can break the sterilization paper 400b (described below) of the sterilization pack 400. The protrusion 51 protrudes from the cartridge body 70 towards the sterilization paper 400b. Specifically, the protrusion 51 protrudes in the height direction H from the cartridge body 70.

[0042] The protrusions 51 are formed at the end of the base end side L2 of the cartridge body 70. Two protrusions 51 are provided spaced apart in the width direction W. The protrusions 51 become sharper as they approach the tip. When viewed in the width direction W, the protrusions 51 are formed in a substantially triangular shape.

[0043] The tips of the protrusions 51 are rounded. The tips of the protrusions 51 are formed to be appropriately sharp. When the cartridge 5 moves relative to the sterilization pack 400 during transportation or when the pack is dropped and the protrusions 51 hit the sterilization pack 400, the sterilization pack 400 is not broken by the protrusions 51.

[0044] The support member 8 is a member capable of supporting the cartridge body 70. The support member 8 is formed to be movable relative to the cartridge body 70. In this embodiment, the support member 8 is rotatably connected to the cartridge body 70. The support member 8 is a member that extends from a connection portion with the cartridge body 70 toward the base end side L2 in the longitudinal direction L. As shown in FIGS. 4 and 5 , the support member 8 has a support member main body 81 (frame) and a rotation shaft 82.

[0045] The support member main body 81 has a plate-like shape extending in the longitudinal direction L. The support member main body 81 is rotatably connected to the cartridge body 70. The support member main body 81 has two plate-like members extending in the longitudinal direction L, spaced apart in the width direction W. The support member main body 81 is connected to the cartridge body 70 with the cartridge body 70 sandwiched between them in the width direction W. The pair of plate-like members extending in the longitudinal direction L formed on the support member main body 81 have their ends on the base end side L2 connected to each other by a plate-like member extending in the width direction W. The support member main body 81 is formed in a substantially U-shape when viewed from the height direction H. The shape of the support member main body 81 is not limited.

[0046] The support member body 81 has rigidity. However, the support member body 81 may be made of an elastically deformable material. The support member body 81 is formed of, for example, a synthetic resin or a metal. However, the material of the support member body 81 is not limited.

[0047] The support member main body 81 is rotatably connected to the cartridge main body 70 via a rotation shaft 82. The support member main body 81 is connected to be rotatable with the width direction W as the axial direction. The support member main body 81 and the rotation shaft 82 are, for example, fitted together and rotatably connected.

[0048] Two rotation shafts 82 are formed on the side surface of the cartridge body 70 in the width direction W, spaced apart in the width direction W. The rotation shafts 82 are formed at positions spaced apart from the protrusions 51 in the longitudinal direction L.

[0049] The cartridge 5 can transition between a first configuration f1 and a second configuration f2. In the first configuration f1, the cartridge 5 is contained in a storage area 400k (described below) of the sterilization pack 400. In the second configuration f2, at least a portion of the cartridge 5 protrudes from the storage area 400k. The sterilization pack 400 is opened when the cartridge 5 transitions from the first configuration f1 to the second configuration f2.

[0050] The cartridge 5 is a deformable member. The cartridge 5 transitions from a first configuration f1 to a second configuration f2 by deformation. The cartridge 5 can be deformed into a straight state and a bent state. The straight state is a state in which the cartridge 5 extends in the longitudinal direction L when viewed from the width direction W. When the cartridge 5 is in the straight state, as shown in FIG. 7, the cartridge body 70 and the support member 8 extend in the longitudinal direction L. The bent state is a state in which the cartridge 5 is bent when viewed from the width direction. When the cartridge 5 is in the bent state, as shown in FIG. 9, the cartridge body 70 and the support member 8 extend in intersecting directions.

[0051] [Sterilization pack 400] Figure 6 is a plan view of sterilization pack 400. Figure 7 is a side view of sterilization pack 400. As shown in Figures 6 and 7, sterilization pack 400 is a bag-shaped member that can package cartridge 5. Sterilization pack 400 can package cartridge 5 while maintaining the interior in a sterile state. A sterile state is a state in which the probability of microorganisms surviving is one in a million or less.

[0052] Sterilization pack 400 can transition between a sterilized state in which the interior of sterilization pack 400 is maintained in a sterilized state, and an open state in which sterilization pack 400 is opened. When sterilization pack 400 is in a sterilized state, it is in a state in which viruses and bacteria cannot enter the interior. When sterilization pack 400 is in a sterilized state, for example, the interior is filled with sterilization gas. Sterilization gas is a gas that has a sterilizing effect, and a space filled with sterilization gas is in a sterilized state. For example, ethylene oxide gas or hydrogen peroxide gas is used as the sterilization gas. Note that if the interior of sterilization pack 400 has been sterilized by gamma rays or the like, it is not necessary for the interior to be filled with sterilization gas. When sterilization pack 400 is in an open state, the sterilization state of the interior is released.

[0053] The sterilization pack 400 is formed with a storage area 400k capable of accommodating the cartridge 5. The storage area 400k is an internal space extending in the longitudinal direction D. The storage area 400k is formed to have approximately the same size as the cartridge 5. The storage area 400k is formed to have approximately the same shape as the cartridge 5.

[0054] The sterilization pack 400 is formed to be breakable. The sterilization pack 400 has a first packaging member and a second packaging member that is easier to break than the first packaging member. In this embodiment, the sterilization pack 400 has a sterilization film 400a and a sterilization paper 400b. The sterilization film 400a is an example of the first packaging member. The sterilization paper 400b is an example of the second packaging member. The sterilization pack 400 may be made of only one type of member. In that case, specifically, the sterilization pack 400 is made of a sterilization film.

[0055] The sterilization film 400a is a material that does not allow viruses or bacteria to pass through. The sterilization film 400a is a material that does not allow sterilization gas to pass through. The sterilization film 400a is made of a transparent material. Because the sterilization film 400a is made of a transparent material, it is easy to recognize the cartridge 5 stored inside.

[0056] The sterilization film 400a has a shape that covers the cartridge 5 along its outer shell. The sterilization film 400a has a box-like shape, and an opening is formed on one of the sides in the height direction H. The opening formed in the sterilization film 400a is closed by sterilization paper 400b.

[0057] Of the sides of the sterilization film 400a in the height direction H, the side 400s facing the opening has a plate-like shape with its thickness direction being the height direction H. The sterilization film 400a has a groove 400v and a depression 400w on the side 400s.

[0058] The groove 400v extends along the width direction W on the surface of the side surface 400s of the sterilization film 400a. The groove 400v is recessed in the height direction H from the surface of the side surface 400s of the sterilization film 400a. The groove 400v is formed in a substantially V-shape when viewed from the width direction W. The groove 400v is formed at a position that overlaps with the pivot shaft 82 when viewed from the height direction H when the cartridge 5 is packaged in the sterilization film 400a.

[0059] The recess 400w is recessed in the height direction H from the surface of the side surface 400s of the sterilization film 400a. The recess 400w is formed on the base end side L2 from the groove 400v. The recess 400w is formed between the pivot shaft 82 and the protrusion 51 when viewed from the height direction H when the cartridge 5 is packaged in the sterilization film 400a. The recess 400w is a member that indicates the position to be pressed by the user when the sterilization pack 400 is opened.

[0060] The sterilization paper 400b is a material that is impermeable to viruses and bacteria. The sterilization paper 400b is a material that allows sterilization gas to pass through in one direction. The sterilization paper 400b does not allow sterilization gas to pass through in the opposite direction to the direction in which the sterilization gas can pass through. The sterilization paper 400b is a paper material formed in a substantially rectangular shape. The shape and material of the sterilization paper 400b are not limited.

[0061] [Operation of Cartridge System 700] Next, the operation of the cartridge system 700 will be described with reference to Figures 7 to 12. Figure 8 is a side view showing the cartridge system 700, illustrating the transition of the cartridge 5 from the first configuration f1 to the second configuration f2. Figure 9 is a side view showing the cartridge system 700, illustrating the state in which the cartridge 5 has transitioned to the second configuration f2. Figures 10 to 12 are perspective views showing the unsealing of the cartridge 5.

[0062] As shown in Figure 10, the user applies force to the recess 400w of the sterilization pack 400. To do this, the user grasps the sterilization pack 400, for example, by pinching it between the thumb, index finger, and middle finger. The user can apply force to the recess 400w of the sterilization pack 400 by placing their thumb along the recess 400w. Because the recess 400w is formed in the sterilization pack 400, the user can intuitively recognize the position where force should be applied to the sterilization pack 400. The recess 400w serves as a marker for the user to place their finger. The recess 400w guides the user to place their finger in a position where the amount of force required to deform the cartridge 5 is small. Because the recess 400w is formed in the sterilization pack 400, the user can easily apply force to the sterilization pack 400.

[0063] Before a force is applied to the sterilization pack 400, as shown in Figure 7, the cartridge 5 is contained in the storage area 400k of the sterilization pack 400. The cartridge 5 does not protrude from the storage area 400k of the sterilization pack 400. Furthermore, the longitudinal direction D of the storage area 400k substantially coincides with the longitudinal direction L of the cartridge 5. In other words, the cartridge 5 is in the first form f1.

[0064] Before a force is applied to the sterilization pack 400, the cartridge 5 extends in the longitudinal direction L, as shown in Figure 7. In the cartridge 5, the cartridge body 70 and the support member 8 extend in the longitudinal direction L. In other words, the cartridge 5 is in a straight state.

[0065] Before a force is applied to the sterilization pack 400, the cartridge 5 has a first height H1 in the height direction H, as shown in Figure 7. The first height H1 is the size of the cartridge 5 in the height direction H, including the cartridge body 70 and the support member 8. In the height direction, the first height H1 of the cartridge 5 is smaller than a third height H3 of the sterilization pack 400. Here, the third height H3 of the sterilization pack 400 is the size in the height direction H of the storage area 400k of the sterilization pack 400.

[0066] Before any force is applied to the sterilization pack 400, the inside of the sterilization pack 400 is maintained in a sterile state. That is, the cartridge 5 packaged in the sterilization pack 400 is maintained in a sterile state.

[0067] The user applies further force to the sterilization pack 400, as shown in Figure 11. When force is applied to the sterilization pack 400, force is applied to the cartridge 5 via the sterilization pack 400. At this time, force is applied to the cartridge 5 in the height direction H. When the user applies force to the recess 400w of the sterilization pack 400, force is applied between the rotation shaft 82 of the cartridge body 70 and the protrusion 51, causing the cartridge body 70 to rotate relative to the support member 8. The cartridge body 70 rotates around the rotation shaft 82, with the width direction W as the rotation axis. The cartridge body 70 rotates in the direction in which the protrusion 51 faces the sterilization paper 400b of the sterilization pack 400.

[0068] Since the rotation shaft 82 and the protrusion 51 are spaced apart in the longitudinal direction L, the protrusion 51 can be brought into contact with the sterilization paper 400b without the cartridge 5 being rotated significantly relative to the support member 8.

[0069] As the cartridge body 70 rotates further, the protrusions 51 come into contact with the sterilization paper 400b of the sterilization pack 400, causing the sterilization paper 400b to break. At this point, as shown in Figure 8, the end of the base end L2 of the cartridge 5 protrudes in the height direction H from the storage area 400k of the sterilization pack 400. Furthermore, the longitudinal direction D of the storage area 400k and the longitudinal direction D of the cartridge 5 intersect. In other words, the cartridge 5 has transitioned from the first configuration f1 to the second configuration f2.

[0070] If the user applies force to the cartridge body 70 in the wrong position, the cartridge body 70 may rotate in a direction that causes the end of the tip side L1 of the cartridge body 70 to approach the sterilized paper 400b. In this case, since the tip side L1 of the cartridge body 70 does not have a protrusion 51 formed thereon, the tip side L1 of the sterilized paper 400b is less likely to break.

[0071] When the sterilization paper 400b is torn, the cartridge 5 is bent when viewed from the width direction W, as shown in Figure 8. In the cartridge 5, the cartridge body 70 and the support member 8 extend in intersecting directions. In other words, the cartridge 5 is in a bent state.

[0072] When the sterilization paper 400b is torn, the cartridge 5 has a second height H2 in the height direction H, as shown in Figure 8. The second height H2 is the size of the cartridge 5 in the height direction H, including the cartridge body 70 and the support member 8. In other words, the second height H2 is the size in the height direction H between the end of the cartridge body 70 and the support member 8, as shown in Figure 8. The second height H2 is greater than the third height H3 of the sterilization pack 400. Here, the third height H3 of the sterilization pack is the size in the height direction H of the storage area 400k of the sterilization pack 400.

[0073] When the sterilization paper 400b is torn, the sterilization state of the inside of the sterilization pack 400 is released. That is, when the sterilization paper 400b is torn, the sterilization state of the cartridges 5 packaged in the sterilization pack 400 is released.

[0074] When cartridge 5 is bent, sterilization pack 400 is also bent. At this time, sterilization pack 400 is bent around groove 400v. Groove 400v assists sterilization pack 400 in bending. Forming groove 400v in sterilization pack 400 makes it easier for the user to bend sterilization pack 400. Furthermore, forming groove 400v in sterilization pack 400 allows the user to intuitively understand how to bend sterilization pack 400.

[0075] The user applies further force to the sterilization pack 400, as shown in Figure 12. The cartridge 5 receives further force through the sterilization pack 400, and rotates further about the rotation axis 82. As the cartridge 5 rotates further, the insertion port 67 becomes exposed, as shown in Figure 9, and the sheath 220 of the clip introduction device 200 can be inserted into the cartridge 5.

[0076] 13 to 15, a method for loading the clip unit 1 will be described. Figures 13 to 15 are views for explaining a method for loading the clip unit 1 into the clip introducer 200 using the cartridge 5.

[0077] 13 is a diagram showing the clip unit 1 connected to the clip introduction device 200. The user advances the sheath 220 toward the distal end of the cartridge 5. At this time, the user, for example, holds the cartridge 5 with one hand while moving the sheath 220 with the other hand. The user further advances the sheath 220, bringing the arrowhead hook 231 into contact with the connecting member 4.

[0078] 14 is a diagram showing the clip unit 1 connected to the clip introduction device 200. The user further advances the sheath 220 to connect the engaging portion 231a of the arrowhead hook 231 with the connecting member 4.

[0079] 15 is a diagram showing how the clip unit 1 is being pulled out of the cartridge 5. The user retracts the sheath 220 toward the proximal end side L2 of the cartridge 5. At this time, the user, for example, holds the cartridge 5 with one hand while moving the sheath 220 with the other hand. The sheath 220 pulls the clip unit 1 toward the proximal end side L2. By retracting the sheath 220 toward the proximal end side L2 of the cartridge 5, the user can pull out the clip unit 1 loaded in the clip introduction device 200 from the cartridge 5.

[0080] The clip unit 1 pulled out from the cartridge 5 can be inserted into a treatment tool insertion channel of an endoscope and used. Note that, although the method for loading the clip unit 1 into the clip introducer 200 has been described in this embodiment, the treatment tool loaded by the cartridge 5 is not limited to the clip unit 1. Similar to the method for loading the clip unit 1, treatment tools such as forceps and a knife can be loaded into the applicator.

[0081] According to the cartridge system 700 of this embodiment, the sterilization pack 400 can be opened with one hand, which reduces the effort required to attach the clip unit (treatment tool) 1 to the clip introduction device (applicator) 200, and allows the clip unit (treatment tool) 1 loaded into the clip introduction device (applicator) 200 to be used as soon as possible.

[0082] (Modification 1) [Cartridge System 700B] Next, a cartridge system 700B according to modification 1 will be described with reference to FIGS. 16 to 19. FIG.

[0083] Fig. 16 is a plan view showing a cartridge system 700B according to Modification 1. Fig. 17 is a cross-sectional view taken along line F17-F17 of cartridge system 700B shown in Fig. 16.

[0084] The cartridge system 700B is a modified version of the cartridge system 700. The cartridge system 700B has a support member 8B that is a modified version of the support member 8. The cartridge having the support member 8B is referred to as cartridge 5B.

[0085] As shown in Figure 16, the support member 8B is not connected to the cartridge body 70. The support member 8B has a plate-like shape extending in the longitudinal direction L. The support member 8B is formed to be larger than the cartridge body 70. The support member 8B is formed to be larger than the cartridge body 70, particularly in the longitudinal direction L. In this embodiment, the support member 8B has a frame-like shape that is formed into a substantially rectangular shape.

[0086] Cartridge 5B is packaged in a sterilization pack 400B. Sterilization pack 400B is a modified version of sterilization pack 400. Sterilization pack 400B differs from sterilization pack 400 in that it is provided with a step 400d. Like sterilization pack 400, sterilization pack 400B has a sterilization film 400a and sterilization paper 400b. It should be noted that sterilization pack 400B may be made of only one type of material. In that case, specifically, sterilization pack 400B is made of sterilization film. Like sterilization pack 400, a storage area 400k is formed in the internal space of sterilization pack 400B.

[0087] As shown in Figure 17, the step 400d is formed on the side surface of the sterilization film 400a of the sterilization pack 400B on the height direction H side. The step 400d is formed along the width direction W. The base end side L2 of the step 400d is higher in the height direction H than the tip end side L1.

[0088] As shown in Figure 17, the size in the height direction H at the proximal end L2 of step 400d of sterilization pack 400B is greater than the height of cartridge body 70. As shown in Figure 17, the size in the height direction H at the distal end L1 of step 400d of sterilization pack 400B is smaller than the height of cartridge body 70. Cartridge body 70 is contained in sterilization pack 400B at the proximal end L2 of step 400d. When cartridge body 70 is contained in sterilization pack 400B, movement of cartridge body 70 in the longitudinal direction L is restricted by the formation of step 400d in sterilization pack 400B. When cartridge body 70 is contained in sterilization pack 400B, cartridge body 70 is positioned closer to the proximal end L2 with respect to support member 8.

[0089] [Operation of Cartridge System 700B] Next, the operation of the cartridge system 700B will be described with reference to Figures 17 to 19. Figure 18 is a diagram showing the state in which the cartridge 5B transitions from the first configuration f1 to the second configuration f2. Figure 19 is a diagram showing the state in which the cartridge 5B has transitioned to the second configuration f2.

[0090] Before a force is applied to sterilization pack 400B, cartridge 5B is contained in storage region 400k of sterilization pack 400B, as shown in Figure 17. Cartridge 5B does not protrude from storage region 400k of sterilization pack 400B. In other words, cartridge 5B is in first configuration f1.

[0091] Before a force is applied to the sterilization pack 400B, the cartridge 5B extends in the longitudinal direction L, as shown in Figure 17. In the cartridge 5B, the cartridge body 70 and the support member 8B extend in the longitudinal direction L. In other words, the cartridge 5B is in a straight state.

[0092] Before a force is applied to the sterilization pack 400B, as shown in Figure 17, the cartridge 5B has a first height H1 in the height direction H. The first height H1 is the size of the cartridge 5B in the height direction H, including the cartridge body 70 and the support member 8B. In the height direction H, the first height H1 of the cartridge 5B is smaller than a third height H3 of the sterilization pack 400B. Here, the third height H3 of the sterilization pack 400B is the size in the height direction H of the storage area 400k of the sterilization pack 400B.

[0093] Before any force is applied to the sterilization pack 400B, the interior of the sterilization pack 400B is maintained in a sterile state, i.e. the cartridge 5B packaged in the sterilization pack 400B is maintained in a sterile state.

[0094] The user applies force to the sterilization pack 400B in the height direction H. When force is applied to the sterilization pack 400B, the force is applied to the cartridge 5B via the sterilization pack 400B. The user applies force to the base end L2 of the cartridge 5B. At this time, force is applied to the cartridge 5B in the height direction H. The cartridge 5B moves in the height direction relative to the support member 8B, as shown in Figure 18. The cartridge 5B moves in a direction such that the base end L2 approaches the sterilization paper 400b.

[0095] As the base end L2 of cartridge 5B moves closer to the sterilization paper 400b, the protrusion 51 comes into contact with the sterilization paper 400b of the sterilization pack 400B, causing the sterilization paper 400b to break. At this time, as shown in Figure 18, the end of the base end L2 of cartridge 5B protrudes in the height direction H from the storage area 400k of the sterilization pack 400B. In other words, cartridge 5B has transitioned from the first configuration f1 to the second configuration f2.

[0096] When the sterilization paper 400b is torn, the cartridge 5B is bent when viewed from the width direction W, as shown in Figure 18. In the cartridge 5B, the cartridge body 70 and the support member 8B extend in intersecting directions. In other words, the cartridge 5B is in a bent state.

[0097] When the sterilization paper 400b is torn, the cartridge 5B has a second height H2 in the height direction H, as shown in Figure 18. The second height H2 is greater than the third height H3 of the sterilization pack 400B.

[0098] When the sterilization paper 400b is torn, the sterilization state inside the sterilization pack 400B is released, i.e., when the sterilization paper 400b is torn, the sterilization state of the cartridge 5B packaged in the sterilization pack 400B is released.

[0099] The user applies further force to sterilization pack 400B. Cartridge 5B receives the further force through sterilization pack 400B, and further protrudes from storage area 400k in height direction H. As cartridge 5B further protrudes from storage area 400k, insertion opening 67 becomes exposed, as shown in Figure 19, and sheath 220 of clip introduction device 200 can be inserted into cartridge 5B.

[0100] (Modification 2) [Cartridge System 700C] Next, a cartridge system 700C according to modification 2 will be described with reference to FIGS. 20 to 23. FIG.

[0101] Figure 20 is a plan view showing a cartridge system 700C according to Modification 2. Figure 21 is a side view showing the cartridge system 700C.

[0102] Cartridge system 700C is a modified version of cartridge system 700. Cartridge system 700C has a support member 8C that is a modified version of support member 8. A cartridge having support member 8C is referred to as cartridge 5C. Cartridge 5C is packaged in a sterilization pack 400, similar to cartridge 5.

[0103] As shown in Figure 20, the support member 8C is a plate-like member connected to the end of the base end side L2 of the cartridge body 70. The support member 8C has a plate-like shape with the height direction H as the plate thickness direction. The connection portion between the support member 8C and the cartridge body 70 is formed to be breakable. Note that the configuration of the connection portion between the support member 8C and the cartridge body 70 is not limited. The connection portion between the support member 8C and the cartridge body 70 may be formed from a material that is more easily deformed than the main body portion of the support member 8C.

[0104] [Operation of Cartridge System 700C] Next, the operation of the cartridge system 700C will be described with reference to Figures 21 to 23. Figure 22 is a diagram showing the state in which the cartridge 5C transitions from the first configuration f1 to the second configuration f2. Figure 23 is a diagram showing the state in which the cartridge 5C has transitioned to the second configuration f2.

[0105] Before a force is applied to the sterilization pack 400, as shown in Figure 21, the cartridge 5C is contained in the storage region 400k of the sterilization pack 400. The cartridge 5C does not protrude from the storage region 400k of the sterilization pack 400. In other words, the cartridge 5C is in the first form f1.

[0106] Before a force is applied to the sterilization pack 400, the cartridge 5C extends in the longitudinal direction L, as shown in Figure 21. In the cartridge 5C, the cartridge body 70 and the support member 8C extend in the longitudinal direction L. In other words, the cartridge 5C is in a straight state.

[0107] Before a force is applied to the sterilization pack 400, the cartridge 5C has a first height H1 in the height direction H, as shown in Figure 21. The first height H1 is the size of the cartridge 5C in the height direction H, including the cartridge body 70 and the support member 8C. In the height direction H, the first height H1 of the cartridge 5C is smaller than the third height H3 of the sterilization pack 400.

[0108] Before any force is applied to the sterilization pack 400, the inside of the sterilization pack 400 is maintained in a sterile state. That is, the cartridge 5C packaged in the sterilization pack 400 is maintained in a sterile state.

[0109] The user applies force to the sterilization pack 400 in the height direction H. When force is applied to the sterilization pack 400, the force is applied to the cartridge 5C via the sterilization pack 400. The user applies force to the base end L2 of the cartridge 5C. At this time, force is applied to the cartridge 5C in the height direction H. As shown in Figure 22, the cartridge 5C moves in the height direction H relative to the support member 8C. The cartridge 5C moves in a direction such that the base end L2 approaches the sterilization paper 400b.

[0110] As the base end L2 of cartridge 5C moves closer to the sterilization paper 400b, the protrusion 51 comes into contact with the sterilization paper 400b of the sterilization pack 400, causing the sterilization paper 400b to break. At this time, as shown in Figure 22, the end of the base end L2 of cartridge 5C protrudes in the height direction H from the storage area 400k of the sterilization pack 400. In other words, cartridge 5C has transitioned from the first configuration f1 to the second configuration f2.

[0111] When the sterilization paper 400b is torn, the cartridge 5C is bent when viewed from the width direction W, as shown in Figure 22. In the cartridge 5C, the cartridge body 70 and the support member 8C extend in intersecting directions. That is, the cartridge 5C is in a bent state.

[0112] When the sterilization paper 400b is torn, the cartridge 5C has a second height H2 in the height direction H, as shown in Figure 22. The second height H2 is greater than the third height H3 of the sterilization pack 400.

[0113] When the sterilization paper 400b is torn, the sterilized state of the inside of the sterilization pack 400 is released. That is, when the sterilization paper 400b is torn, the sterilized state of the cartridge 5C packaged in the sterilization pack 400 is released.

[0114] The user applies further force to sterilization pack 400. Cartridge 5C receives further force through sterilization pack 400, and further protrudes from storage area 400k in height direction H. As cartridge 5C further protrudes from storage area 400k, insertion port 67 becomes exposed, as shown in Figure 23, and sheath 220 of clip introduction device 200 can be inserted into cartridge 5C.

[0115] (Modification 3) [Cartridge System 700D] Next, a cartridge system 700D according to modification 3 will be described with reference to FIGS. 24 to 26. FIG.

[0116] Figure 24 is a plan view showing a cartridge system 700D according to Modification 3. Figure 25 is a side view showing the cartridge system 700D.

[0117] The cartridge system 700D is a modification of the cartridge system 700. The cartridge system 700D includes a cartridge 5D, which is a modification of the cartridge 5. The cartridge 5D is packaged in a sterilization pack 400.

[0118] As shown in FIG. 24, the cartridge 5D has a cartridge body 70D which is a modified version of the cartridge body 70, and a support member 8D which is a modified version of the support member 8.

[0119] The cartridge body 70D is connected to the rotation shaft 82 at a point L1 distal to the position where the treatment tool storage area 7S is formed in the longitudinal direction L. The cartridge body 70D extends toward the sterilized paper 400b as it advances toward the distal end L1 at a point distal to the connection with the rotation shaft 82. The cartridge body 70D has a plate-like shape that extends toward the sterilized paper 400b as it advances toward the distal end L1, and then extends toward the distal end L1.

[0120] The support member 8D has a plate-like shape with its thickness direction aligned with the height direction H. The support member 8D is formed to have approximately the same size as the cartridge main body 70D when viewed from the height direction H. The rotation shaft 82 is formed in approximately the center of the support member 8D in the longitudinal direction L.

[0121] [Operation of Cartridge System 700D] Next, the operation of the cartridge system 700D will be described with reference to Figures 25 and 26. Figure 26 is a diagram showing the state in which the cartridge 5D has transitioned to the second configuration f2.

[0122] Before a force is applied to the sterilization pack 400, as shown in Figure 25, the cartridge 5D is contained in the storage region 400k of the sterilization pack 400. The cartridge 5D does not protrude from the storage region 400k of the sterilization pack 400. In other words, the cartridge 5D is in the first form f1.

[0123] Before a force is applied to the sterilization pack 400, the cartridge 5D extends in the longitudinal direction L, as shown in Figure 21. In the cartridge 5D, the cartridge body 70D and the support member 8D extend in the longitudinal direction L. In other words, the cartridge 5D is in a straight state.

[0124] Before a force is applied to the sterilization pack 400, the cartridge 5D has a first height H1 in the height direction H, as shown in Figure 21. The first height H1 is the size of the cartridge 5D in the height direction H, including the cartridge body 70D and the support member 8D. In the height direction, the first height H1 of the cartridge 5D is smaller than the third height H3 of the sterilization pack 400.

[0125] Before any force is applied to the sterilization pack 400, the inside of the sterilization pack 400 is maintained in a sterile state. That is, the cartridge 5D packaged in the sterilization pack 400 is maintained in a sterile state.

[0126] The user applies force to the sterilization pack 400 in the height direction H. The user applies force to the sterilization paper 400b of the sterilization pack 400. When force is applied to the sterilization pack 400, the force is applied to the cartridge 5D via the sterilization pack 400. The user applies force to the tip side L1 of the cartridge body 70D. At this time, force is applied to the cartridge 5D in the height direction H. The cartridge 5D moves in the height direction relative to the support member 8D, as shown in Figure 26. The cartridge 5D moves in a direction such that the base end side L2 approaches the sterilization paper 400b.

[0127] As the base end L2 of cartridge 5D moves closer to the sterilization paper 400b, the protrusions 51 come into contact with the sterilization paper 400b of the sterilization pack 400, causing the sterilization paper 400b to break. At this time, as shown in Figure 26, the end of the base end L2 of cartridge 5D protrudes in the height direction H from the storage area 400k of the sterilization pack 400. In other words, cartridge 5D has transitioned from the first configuration f1 to the second configuration f2.

[0128] When the sterilization paper 400b is torn, the cartridge 5D is bent when viewed from the width direction W, as shown in Figure 26. In the cartridge 5D, the cartridge body 70D and the support member 8D extend in intersecting directions. That is, the cartridge 5D is in a bent state.

[0129] When the sterilization paper 400b is torn, the cartridge 5D has a second height H2 in the height direction H, as shown in Figure 26. The second height H2 is greater than the third height H3 of the sterilization pack 400.

[0130] When the sterilization paper 400b is torn, the sterilization state of the inside of the sterilization pack 400 is released. That is, when the sterilization paper 400b is torn, the sterilization state of the cartridge 5D packaged in the sterilization pack 400 is released.

[0131] When the cartridge 5D pops out of the storage area 400k, the insertion opening 67 is exposed as shown in FIG. 26, and the sheath 220 of the clip introducer 200 can be inserted into the cartridge 5D.

[0132] (Modification 4) [Cartridge System 700E] Next, a cartridge system 700E according to modification 4 will be described with reference to Figures 27 and 28 .

[0133] 27 is a side view showing cartridge system 700E. Cartridge system 700E is a modified version of cartridge system 700. Cartridge system 700E includes cartridge 5E, which is a modified version of cartridge 5. Cartridge 5E is packaged in a sterilization pack 400.

[0134] As shown in FIG. 24, the cartridge 5E has a support member 8E which is a modified example of the support member 8.

[0135] The support member 8E has a plate-like shape with its thickness direction in the height direction H. From the distal end L1 of the connection with the pivot shaft 82, the support member 8E extends in the height direction H toward the sterilization film 400a as it moves toward the distal end L1. The support member 8E has a plate-like shape that extends toward the distal end L1, then toward the distal end L1. The pivot shaft 82 is formed in approximately the center of the support member 8E in the longitudinal direction L.

[0136] [Operation of Cartridge System 700E] Next, the operation of the cartridge system 700E will be described with reference to Figures 27 and 28. Figure 28 is a diagram showing the state in which the cartridge 5E has transitioned to the second form f2.

[0137] Before a force is applied to the sterilization pack 400, as shown in Figure 25, the cartridge 5E is contained in the storage region 400k of the sterilization pack 400. The cartridge 5E does not protrude from the storage region 400k of the sterilization pack 400. In other words, the cartridge 5E is in the first form f1.

[0138] Before a force is applied to the sterilization pack 400, the cartridge 5E extends in the longitudinal direction L, as shown in Figure 21. In the cartridge 5E, the cartridge body 70 and the support member 8E extend in the longitudinal direction L. In other words, the cartridge 5E is in a straight state.

[0139] Before a force is applied to the sterilization pack 400, as shown in Figure 21, the cartridge 5E has a first height H1 in the height direction H. The first height H1 is the size of the cartridge 5E in the height direction H, including the cartridge body 70 and the support member 8E. In the height direction H, the first height H1 of the cartridge 5D is smaller than the third height H3 of the sterilization pack 400.

[0140] Before any force is applied to the sterilization pack 400, the inside of the sterilization pack 400 is maintained in a sterile state. That is, the cartridge 5E packaged in the sterilization pack 400 is maintained in a sterile state.

[0141] The user applies force to the sterilization pack 400 in the height direction H. The user applies force to the sterilization paper 400b of the sterilization pack 400. When force is applied to the sterilization pack 400, the force is applied to the cartridge 5E via the sterilization pack 400. The user applies force to the tip side L1 of the cartridge body 70. At this time, force is applied to the cartridge 5E in the height direction H. The cartridge 5E moves in the height direction relative to the support member 8E, as shown in Figure 28. The cartridge 5E moves in a direction such that the base end side L2 approaches the sterilization paper 400b.

[0142] As the base end L2 of the cartridge 5E moves closer to the sterilization paper 400b, the protrusions 51 come into contact with the sterilization paper 400b of the sterilization pack 400, causing the sterilization paper 400b to break. At this time, as shown in Figure 26, the end of the base end L2 of the cartridge 5E protrudes in the height direction H from the storage area 400k of the sterilization pack 400. In other words, the cartridge 5E has transitioned from the first configuration f1 to the second configuration f2.

[0143] When the sterilization paper 400b is torn, the cartridge 5E is bent when viewed from the width direction W, as shown in Figure 26. In the cartridge 5E, the cartridge body 70 and the support member 8E extend in intersecting directions. In other words, the cartridge 5E is in a bent state.

[0144] When the sterilization paper 400b is torn, the cartridge 5E has a second height H2 in the height direction H, as shown in Figure 26. The second height H2 is greater than the third height H3 of the sterilization pack 400.

[0145] When the sterilization paper 400b is torn, the sterilized state inside the sterilization pack 400 is released. That is, when the sterilization paper 400b is torn, the sterilized state of the cartridge 5E packaged in the sterilization pack 400 is released.

[0146] When the cartridge 5E pops out of the storage area 400k, the insertion opening 67 is exposed as shown in FIG. 26, and the sheath 220 of the clip introducer 200 can be inserted into the cartridge 5E.

[0147] 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 modifications can be configured in any suitable combination.

[0148] Second Embodiment [Cartridge System 700F] A cartridge system 700F according to a second embodiment of the present invention will be described with reference to Figures 29 to 35. The cartridge system 700F according to the second embodiment differs from the cartridge system 700 of the first embodiment in the configuration of the cartridge, etc. In the following description, components that are common to those already described will be assigned the same reference numerals, and duplicate description will be omitted.

[0149] Figure 29 is a plan view showing cartridge system 700F, Figure 30 is a side view showing cartridge system 700F, and Figure 31 is a front view showing cartridge system 700F.

[0150] Similar to the cartridge system 700, the cartridge system 700F is a support system for easily loading the clip unit 1 into the clip introduction device (applicator) 200.

[0151] The cartridge system 700F includes a cartridge 5F, which is a modification of the cartridge 5. The cartridge 5F is packaged in a sterilization pack 400F, which is a modification of the sterilization pack 400.

[0152] As shown in FIG. 24, the cartridge 5F has a support member 8F which is a modified example of the support member 8.

[0153] The support member 8F has a plate-like shape with its thickness direction being the height direction H. From the distal end side L1 of the connection with the pivot shaft 82, the support member 8F extends in the height direction H toward the sterilization film 400a as it moves toward the distal end side L1. The support member 8F has a plate-like shape that extends toward the sterilization film 400a as it moves toward the distal end side L1, and then extends toward the distal end side L1. The pivot shaft 82 is formed in approximately the center of the support member 8F in the longitudinal direction L.

[0154] The sterilization pack 400F is formed so that the adhesive surfaces between the sterilization film 400a and the sterilization paper 400b can be peeled off. This allows the sterilization pack 400F to be opened without tearing the sterilization paper 400b. Because the sterilization pack 400F is not torn, there is no need for protrusions 51 to be formed on the cartridge 5F. The sterilization pack 400F may be made of only one type of material. In this case, specifically, the sterilization pack 400F is made of a sterilization film.

[0155] [Operation of Cartridge System 700F] Next, operation of the cartridge system 700F will be described with reference to Figures 32 and 33. Figure 32 is a side view showing a state in which the cartridge 5F has transitioned to the second configuration f2. Figure 33 is a front view showing a state in which the cartridge 5F has transitioned to the second configuration f2.

[0156] Before a force is applied to the sterilization pack 400F, the cartridge 5F is contained in the storage region 400k of the sterilization pack 400F, as shown in Figure 30. The cartridge 5F does not protrude from the storage region 400k of the sterilization pack 400F. In other words, the cartridge 5F is in the first form f1.

[0157] Before a force is applied to the sterilization pack 400F, the cartridge 5F extends in the longitudinal direction L, as shown in Figure 30. In the cartridge 5F, the cartridge body 70 and the support member 8F extend in the longitudinal direction L. In other words, the cartridge 5F is in a straight state.

[0158] Before a force is applied to the sterilization pack 400F, as shown in Figure 30, the base end portion of the cartridge 5F has a first height H1 in the height direction H. The first height H1 is the size of the base end portion of the cartridge 5F in the height direction H, including the cartridge body 70 and the support member 8F. In the height direction H, the first height H1 of the cartridge 5F is smaller than a third height H3 of the tip end portion of the sterilization pack 400F. The third height H3 is the size in the height direction H of the base end portion of the sterilization pack 400F.

[0159] Before any force is applied to the sterilization pack 400F, the interior of the sterilization pack 400F is maintained in a sterile state, i.e. the cartridge 5F packaged in the sterilization pack 400F is maintained in a sterile state.

[0160] The user applies force to the sterilization pack 400F in the height direction H. The user applies force to the sterilization film 400a of the sterilization pack 400F. When force is applied to the sterilization pack 400F, the force is applied to the cartridge 5F via the sterilization pack 400F. The user applies force to the tip side L1 of the support member 8F. At this time, force is applied to the cartridge 5F in the height direction H. The cartridge 5F moves in the height direction H relative to the support member 8F, as shown in Figure 30. The support member 8F moves in a direction in which the base side L2 moves away from the sterilization paper 400b.

[0161] As the base end L2 of the support member 8F moves away from the sterilization paper 400b, the base end L2 of the support member 8F applies a force to the base end L2 of the sterilization film 400a in a direction away from the sterilization paper 400b. As a result, the sterilization film 400a is peeled off from the sterilization paper 400b. At this time, as shown in Figure 32, the end of the base end L2 of the cartridge 5F protrudes in the height direction H from the storage area 400k of the sterilization pack 400F. In other words, the cartridge 5F has transitioned from the first configuration f1 to the second configuration f2.

[0162] When the sterilization film 400a is peeled off, the cartridge 5F is bent when viewed from the width direction W, as shown in Figure 32. In the cartridge 5F, the cartridge body 70 and the support member 8F extend in intersecting directions. That is, the cartridge 5F is in a bent state.

[0163] When the sterilization film 400a is peeled off, the cartridge 5F has a second height H2 in the height direction H, as shown in Figure 32. The first height H1 is the size of the base end portion of the cartridge 5F in the height direction H, including the cartridge body 70 and the support member 8F. In other words, the second height H2 is the size between the end of the base end side L2 of the cartridge body 70 and the end of the base end side L2 of the support member 8F. The second height H2 is greater than the third height H3 of the sterilization pack 400F.

[0164] When the sterilization film 400a is peeled off, the sterilization state of the inside of the sterilization pack 400F is released, i.e., when the sterilization film 400a is peeled off, the sterilization state of the cartridge 5E packaged in the sterilization pack 400F is released.

[0165] When the cartridge 5F pops out of the storage area 400k, the insertion opening 67 is exposed as shown in FIGS. 32 and 33, and the sheath 220 of the clip introducer 200 can be inserted into the cartridge 5E.

[0166] (Modification 5) [Supporting Member 8G] Next, a supporting member 8G according to Modification 5 will be described with reference to FIGS. 34 and 35. FIG.

[0167] Figure 34 is a side view showing a cartridge system 700F provided with a support member 8G. Figure 32 is a side view showing a state in which a cartridge 5F provided with a support member 8G has transitioned to the second form f2.

[0168] The support member provided in the cartridge system 700F may be a support member 8G. The support member 8G is a modified example of the support member 8F. The support member 8F has a clip shape. The support member 8G is formed by two arms aligned in the height direction H, and the two arms are provided rotatable around a rotation shaft 82. The support member 8G has a configuration in which, by applying a force to the tip side L1 in the height direction H, the base side L2 moves away from the tip side L1 in the height direction H. The shapes of the support members 8G and 8F are not limited.

[0169] 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 modifications can be configured by appropriately combining them.

[0170] (Third Embodiment) [Cartridge System 700H] A cartridge system 700H according to a third embodiment of the present invention will be described with reference to Figures 36 to 61. The cartridge system 700H according to the third embodiment differs from the cartridge system 700 of the first embodiment in the configuration of the cartridge, etc. In the following description, components that are common to those already described will be assigned the same reference numerals, and duplicate description will be omitted.

[0171] 36 is a plan view showing a cartridge system 700 H. Like the cartridge system 700, the cartridge system 700 H is a support system for easily loading the clip unit 1 into the clip introduction device (applicator) 200.

[0172] The cartridge system 700H includes a cartridge 5H, which is a modification of the cartridge 5. The cartridge 5H is packaged in a sterilization pack 400H, which is a modification of the sterilization pack 400.

[0173] The cartridge 5H has a cartridge body 70H which is a modified version of the cartridge body 70. Unlike the cartridge 5, the cartridge 5H does not include a support member. Furthermore, the cartridge 5H differs from the cartridge 5 in the configuration of the protrusions.

[0174] The cartridge body 70H has a different shape from the cartridge body 70 on the distal end side L1 from the position where the treatment tool storage area 7S is formed. The cartridge body 70H has a longer length from the distal end side L1 from the position where the treatment tool storage area 7S is formed to the distal end than the cartridge body 70. In this embodiment, the size of the cartridge body 70H in the longitudinal direction L from the position where the treatment tool storage area 7S is formed to the distal end is larger than the size of the longitudinal direction L from the base end to the position where the treatment tool storage area 7S is formed.

[0175] The cartridge body 70H is formed with a protrusion 51H, which is a modified version of the protrusion 51. The protrusion 51H is formed at a different position compared to the protrusion 51. The protrusion 51H protrudes from the base end of the cartridge body 70H toward the base end side L2.

[0176] Cartridge 5H is packaged in a sterilization pack 400H, which is a variation of sterilization pack 400. Sterilization pack 400H has a different configuration of sterilization film. Sterilization pack 400H has sterilization film 400Ha, which is a variation of sterilization film 400a. Sterilization pack 400H may be made of only one type of material. Sterilization pack 400H may be formed without including sterilization paper. In that case, specifically, sterilization pack 400H is formed of sterilization film. Like sterilization pack 400, sterilization pack 400H has a storage area 400k formed in its internal space.

[0177] The orientation of cartridge 5H relative to sterilization pack 400H is different from that of cartridge 5. Cartridge 5H is placed relative to sterilization pack 400H with the base end L2 in the longitudinal direction L facing the sterilization paper 400b. When cartridge 5H is placed in sterilization pack 400H, protrusion 51H formed on cartridge 5H protrudes toward the sterilization paper 400b.

[0178] The sterilization film 400Ha has a hard film portion 400Hm and a soft film portion 400Hn that is softer than the hard film portion 400Hm.

[0179] The hard film portion 400Hm is formed in a cylindrical shape. The proximal end side L2 of the hard film portion 400Hm is adhered to the sterilization paper 400b. The size of the hard film portion 400Hm in the longitudinal direction L is formed to be large enough for a user to pinch it with their fingers.

[0180] The flexible film portion 400Hn is formed in a bag shape. Because the flexible film portion 400Hn is formed in a bag shape, it has an opening. The opening of the flexible film portion 400Hn is connected to the edge of the distal end side L1 of the hard film portion 400Hm. Therefore, the internal space of the hard film portion 400Hm and the internal space of the flexible film portion 400Hn are in communication with each other.

[0181] [Operation of Cartridge System 700H] Next, the operation of the cartridge system 700H will be described with reference to Figures 36 to 42. Figure 37 is a side view showing a state in which the cartridge 5H has transitioned to the second configuration f2. Figure 38 is a front view showing a state in which the cartridge 5H has transitioned to the second configuration f2. Figures 39 to 42 are views showing how the cartridge 5H is opened by a user.

[0182] When opening the sterilization pack 400H, the user places their thumb on the tip of the sterilization pack 400H and holds the pack with the other fingers so that they wrap around the cartridge 5H via the sterilization pack 400H, as shown in Figure 39. At this time, the user holds the sterilization pack 400H so that at least one finger wraps around the hard film portion 400Hm of the sterilization pack 400H.

[0183] Before a force is applied to the sterilization pack 400H, the cartridge 5H is contained in the storage region 400k of the sterilization pack 400H, as shown in Figure 36. The cartridge 5H does not protrude from the storage region 400k of the sterilization pack 400H. In other words, the cartridge 5H is in the first form f1.

[0184] Before a force is applied to sterilization pack 400H, as shown in Figure 36, sterilization pack 400H has a first length D1 in the longitudinal direction L. First length D1 is the size of sterilization pack 400H in the longitudinal direction L. Before a force is applied to sterilization pack 400H, as shown in Figure 36, soft film portion 400Hn has a third length D3 in the longitudinal direction L. Third length D3 is the size of soft film portion 400Hn in the longitudinal direction L.

[0185] Before a force is applied to the sterilization pack 400H, the inside of the sterilization pack 400H is maintained in a sterile state, i.e., the cartridge 5H packaged in the sterilization pack 400H is maintained in a sterile state.

[0186] The user applies force to the sterilization pack 400H in the longitudinal direction L. The user applies force to the soft film portion 400Hn of the sterilization pack 400H. When force is applied to the sterilization pack 400H, the force is applied to the cartridge 5H via the sterilization pack 400H. At this time, force is applied to the cartridge 5H in the longitudinal direction L. As shown in Figure 37, the cartridge 5H moves in the longitudinal direction L relative to the hard film portion 400Hm. The cartridge 5H moves in the longitudinal direction L in a direction approaching the sterilization paper 400b.

[0187] As the cartridge 5H moves closer to the sterilization paper 400b, the protrusions 51H come into contact with the sterilization paper 400b, causing the sterilization paper 400b to break. At this time, as shown in Figure 37, the end of the base end L2 of the cartridge 5H protrudes in the longitudinal direction L from the storage area 400k of the sterilization pack 400H. In other words, the cartridge 5H has transitioned from the first configuration f1 to the second configuration f2.

[0188] When the sterilization paper 400b is torn, the cartridge 5H has a second length D2 in the longitudinal direction L, as shown in Figure 37. The second length D2 is the size of the sterilization pack 400H in the longitudinal direction L. The second length D2 is shorter than the first length D1. When the sterilization paper 400b is torn, the soft film portion 400Hn has a fourth length D4 in the longitudinal direction L, as shown in Figure 37. The fourth length D4 is the size of the soft film portion 400Hn in the longitudinal direction L. The fourth length D4 is shorter than the third length D3.

[0189] When the sterilization paper 400b is torn, the sterilization state of the inside of the sterilization pack 400H is released, i.e., when the sterilization paper 400b is torn, the sterilization state of the cartridge 5H packaged in the sterilization pack 400H is released.

[0190] When the cartridge 5H pops out of the storage area 400k, the insertion opening 67 is exposed as shown in FIGS. 37 and 38, allowing the sheath 220 of the clip introducer 200 to be inserted into the cartridge 5H.

[0191] The method for opening the sterilization pack 400H is not limited to this. The sterilization pack 400H may be opened by pressing the tip side L1 of the sterilization pack 400H against a desk or the like, as shown in Figures 41 and 42 .

[0192] (Modification 6) [Cartridge System 700I] Next, a cartridge system 700I according to Modification 6 will be described with reference to Figures 43 to 48 .

[0193] Figure 43 is a plan view showing a cartridge system 700I according to Modification 6. Figure 44 is a side view showing the cartridge system 700I. Figure 45 is a detailed view of the area surrounded by dashed line D45 of the cartridge 5I shown in Figure 43.

[0194] Cartridge system 700I is a variation of cartridge system 700H. Cartridge system 700I includes cartridge 5I, which is a variation of cartridge 5H. Cartridge 5I is packaged in sterilization pack 400I, which is a variation of sterilization pack 400H.

[0195] The cartridge 5I has a cartridge body 70I which is a modified version of the cartridge body 70H. Furthermore, the cartridge 5I has an outer cylinder member (outer cylinder) 52, unlike the cartridge 5H.

[0196] The outer tube member 52 is a member having a cylindrical shape. When viewed from the longitudinal direction L, the outer tube member 52 is formed to surround the outer periphery of the cartridge 5I. The cartridge 5I is provided so as to be movable in the longitudinal direction L within the internal space of the outer tube member 52. The outer tube member 52 is formed, for example, from a synthetic resin and is an elastically deformable member. The shape and material of the outer tube member 52 are not limited. The protrusion 51H can transition between a housed state in which it is housed inside the outer tube member 52 and a protruding state in which it protrudes from the outer tube member 52.

[0197] The outer barrel member 52 has a first opening 52a engageable with the engaging protrusion 70Ia formed on the cartridge body 70I, and a second opening 52b engageable with the engaging protrusion 70Ia formed on the cartridge body 70I. The first opening 52a and the second opening 52b are formed on the surface of the side surface of the outer barrel member 52 in the height direction H. The first opening 52a is formed closer to the base end side L2 than the second opening 52b. The shapes of the first opening 52a and the second opening 52b are not limited. If the engaging protrusion 70Ia formed on the cartridge body 70I is a concave member, convex members may be provided instead of the first opening 52a and the second opening 52b.

[0198] The outer tube member 52 is formed with a first convex portion 52c and a second convex portion 52d. The first convex portion 52c and the second convex portion 52d are formed on the surface of the side surface of the outer tube member 52 in the height direction H. The first convex portion 52c and the second convex portion 52d are members that protrude from the surface of the outer tube member 52. The first convex portion 52c and the second convex portion 52d act as anti-slip portions, making it easy for the user to grasp the outer tube member 52 via the sterilization pack 400I.

[0199] Unlike cartridge body 70H, cartridge body 70I has an engaging projection 70Ia, a dish member 70Ib, a protruding portion 70Ic, and a storage portion 70Id. In first configuration f1, in which cartridge 5I is stored in sterilization pack 400I, storage portion 70Id is covered by outer tube member 52. Protruding portion 70Ic is located on the opposite side of protrusion 51H in the applicator insertion direction, and in first configuration f1, protrudes from outer tube member 52 into sterilization pack 400I. Specifically, when engaging projection 70Ia (described below) engages with first opening 52a, protruding portion 70Ic protrudes from outer tube member 52 into sterilization pack 400I. Therefore, a user can easily apply force to cartridge 5I in the longitudinal direction L via protruding portion 70Ic. Protrusion 51H is part of storage portion 70Id.

[0200] The engaging protrusion 70Ia is a member that can engage with the first opening 52a and the second opening 52b formed in the outer tube member 52. The engaging protrusion 70Ia is formed on the surface of the side surface of the cartridge body 70I in the height direction H. The engaging protrusion 70Ia is a member that protrudes from the surface of the cartridge body 70I. When the engaging protrusion 70Ia is engaged with the first opening 52a, the protrusion 51H formed at the base end of the cartridge body 70I is housed inside the outer tube member 52. When the engaging protrusion 70Ia is engaged with the second opening 52b, the protrusion 51H formed at the base end of the cartridge body 70I protrudes from the base end side L2 of the outer tube member 52.

[0201] The engaging protrusion 70Ia is inclined toward the base end side L2 when viewed from the width direction W. Therefore, even if the engaging protrusion 70Ia is engaged with the first opening 52a, the cartridge body 70I can be moved toward the base end side L2 relative to the outer tube member 52.

[0202] When viewed in the width direction, the engaging projection 70Ia has a locking surface formed on the tip side L1 that extends in a direction perpendicular to the longitudinal direction L. Therefore, when the engaging projection 70Ia is engaged with the first opening 52a and the second opening 52b, the cartridge body 70I cannot be moved toward the tip side L1 relative to the outer barrel member 52. The shape of the engaging projection 70Ia is not limited.

[0203] The dish member 70Ib is formed at the tip of the cartridge body 70I. In other words, the dish member 70Ib is formed at the end of the protrusion 70Ic. The dish member 70Ib has a plate-like shape with its thickness direction aligned with the longitudinal direction L. The dish member 70Ib is a member on which the user places, for example, their thumb when applying force to the tip of the cartridge body 70I. The surface of the dish member 70Ib is, for example, concave. The provision of the dish member 70Ib makes it easier for the user to apply force to the cartridge body 70I.

[0204] Unlike sterilization pack 400H, sterilization pack 400I does not include hard film portion 400Hm. Sterilization pack 400I is formed to include soft film portion 400Hn and sterilization paper 400b. Because cartridge system 700I is provided with outer tube member 52, there is no need to provide hard film portion 400Hm, making it easier to manufacture. Sterilization pack 400I may also be composed of only one type of material. Sterilization pack 400I may be formed without including sterilization paper. In that case, specifically, sterilization pack 400I is formed from soft film.

[0205] [Operation of Cartridge System 700I] Next, the operation of cartridge system 700I will be described with reference to Figures 46 to 48. Figure 46 is a side view showing sterilization pack 400I in a state in which cartridge 5I has transitioned to second configuration f2. Figure 47 is a perspective view showing cartridge 5I in a state in which cartridge 5I has transitioned to second configuration f2. Figure 48 is a detailed view of the area indicated by dashed line D48 of cartridge 5I shown in Figure 47.

[0206] When opening the sterilization pack 400I, the user places their thumb on the tip of the sterilization pack 400I and holds the cartridge 5I with their other fingers, wrapping the sterilization pack 400I around it. At this time, the user's thumb is placed on the plate member 70Ib.

[0207] Before a force is applied to the sterilization pack 400I, the engagement projection 70Ia is engaged with the first opening 52a, as shown in FIG.

[0208] Before a force is applied to sterilization pack 400I, cartridge 5I is contained in storage region 400k of sterilization pack 400I, as shown in Figure 43. Cartridge 5I does not protrude from storage region 400k of sterilization pack 400I. Furthermore, protrusion 51H is contained within outer cylinder member 52. In other words, cartridge 5I is in first form f1.

[0209] Before a force is applied to sterilization pack 400I, as shown in Figure 43, sterilization pack 400I has a first length D1 in the longitudinal direction L. First length D1 is the size of sterilization pack 400I in the longitudinal direction L. Before a force is applied to sterilization pack 400I, as shown in Figure 43, soft film portion 400Hn has a third length D3 in the longitudinal direction L. Third length D3 is the size of soft film portion 400Hn in the longitudinal direction L.

[0210] Before any force is applied to the sterilization pack 400I, the inside of the sterilization pack 400I is maintained in a sterile state, i.e., the cartridge 5I packaged in the sterilization pack 400I is maintained in a sterile state.

[0211] The user applies force to the sterilization pack 400I in the longitudinal direction L. The user applies force to the flexible film portion 400Hn of the sterilization pack 400I. When force is applied to the sterilization pack 400I, the force is applied to the cartridge 5I via the sterilization pack 400I. At this time, force is applied to the cartridge 5I in the longitudinal direction L. As shown in Figure 46, the cartridge 5I moves in the longitudinal direction L relative to the flexible film portion 400Hn. The cartridge 5I moves in the longitudinal direction L in a direction approaching the sterilization paper 400b.

[0212] As the cartridge 5I moves toward the sterilization paper 400b, the protrusion 51H comes into contact with the sterilization paper 400b, causing the sterilization paper 400b to break. At this time, as shown in Figure 47, the end of the base end L2 of the cartridge 5I protrudes in the longitudinal direction L from the storage area 400k of the sterilization pack 400I. The protrusion 51H also protrudes from the outer tube member 52. In other words, the cartridge 5I has transitioned from the first configuration f1 to the second configuration f2.

[0213] When the sterilization paper 400b is torn, the cartridge 5I has a second length D2 in the longitudinal direction L, as shown in Figure 46. The second length D2 is the size of the sterilization pack 400I in the longitudinal direction L. The second length D2 is shorter than the first length D1. When the sterilization paper 400b is torn, the soft film portion 400Hn has a fourth length D4 in the longitudinal direction L, as shown in Figure 47. The fourth length D4 is the size of the soft film portion 400Hn in the longitudinal direction L. The fourth length D4 is shorter than the third length D3.

[0214] When the sterilization paper 400b is torn, the sterilization state of the inside of the sterilization pack 400I is released, i.e., when the sterilization paper 400b is torn, the sterilization state of the cartridge 5I packaged in the sterilization pack 400I is released.

[0215] When the cartridge 5I pops out of the storage region 400k, the insertion opening 67 is exposed, as shown in Figures 46 and 47, allowing the sheath 220 of the clip introducer device 200 to be inserted into the cartridge 5I. At this time, the user moves the cartridge 5I until the engaging protrusion 70Ia engages with the second opening 52b. The engagement between the engaging protrusion 70Ia and the second opening 52b prevents the cartridge body 70I from moving toward the distal end side L1 relative to the outer tube member 52. Since the cartridge body 70I does not move even when the user inserts the sheath 220 into the insertion opening 67 while holding down the outer tube member 52, the user can easily load the cartridge.

[0216] (Seventh Modification) [Cartridge System 700J] Next, a cartridge system 700J according to a seventh modification will be described with reference to Figures 49 and 50 .

[0217] Figure 49 is a plan view showing a cartridge system 700J according to Modification 7. Figure 50 is a perspective view showing how the cartridge system 700J is used.

[0218] Cartridge system 700J is a modification of cartridge system 700H. In cartridge system 700J, cartridge 5H is packaged in sterilization pack 400J, which is a modification of sterilization pack 400H.

[0219] As shown in Figure 49, sterilization pack 400J differs from sterilization pack 400H in that it has an opening 400Ja. The opening 400Ja is a member that a user can place their finger on when opening sterilization pack 400J. Two openings 400Ja are provided, spaced apart in the width direction W. The pair of openings 400Ja are formed with storage area 400k sandwiched between them in the width direction W. Sterilization pack 400J may be made of only one type of member. Sterilization pack 400J may be formed without including sterilization paper. In that case, specifically, sterilization pack 400J is formed from sterilization film.

[0220] When opening the sterilization pack 400J, the user can use it by, for example, placing their index finger and middle finger over the opening 400Ja, as shown in Figure 50. By placing their fingers over the opening 400Ja, the user can hold the sterilization pack 400J stably. This makes the sterilization pack 400J easy to open.

[0221] (Modification 8) [Cartridge System 700K] Next, a cartridge system 700K according to Modification 8 will be described with reference to Figures 51 to 55.

[0222] Figure 51 is a plan view showing a cartridge system 700K according to Modification 8. Figure 52 is a side view showing the cartridge system 700K.

[0223] The cartridge system 700K is a modified version of the cartridge system 700H. The cartridge system 700K includes a cartridge 5K, which is a modified version of the cartridge 5H. Unlike the cartridge 5H, the cartridge 5K includes a movable member 53.

[0224] The movable member 53 is a member that extends to the base end side L2 in the longitudinal direction L when a force is applied in the height direction H. The movable member 53 is configured to move to the base end side L2 when a force is applied in the height direction H due to a link structure. The movable member 53 is rotatably connected to the cartridge main body 70H.

[0225] The movable member 53 has a push-in portion 53a, a link 53b, and a protruding portion 53c. The push-in portion 53a has a plate-like shape with the height direction H as its plate thickness direction. The push-in portion 53a is connected to the link 53b. The link 53b is formed to be movable in the height direction H and the longitudinal direction L. By pushing the push-in portion 53a in the height direction H, the link 53b moves in the longitudinal direction L while moving in the height direction H. The protruding portion 53c is provided at the base end of the link 53b. As the link 53b moves in the height direction H, the tip of the link 53b moves in the longitudinal direction L, and the protruding portion 53c moves in the longitudinal direction L. As a result, the protruding portion 53c moves toward the base end side L2 in the longitudinal direction L.

[0226] A protrusion 51H is formed at the end of the protruding portion 53c on the base end side L2. The protrusion 51H protrudes toward the base end side L2 in the longitudinal direction L.

[0227] Figure 55 is a side view showing a modified example of the cartridge 5K. The shape of the movable member 53 is not limited. For example, as shown in Figure 55, the movable member 53 may not have a link structure and may be made of an elastically deformable member. In the modified example shown in Figure 55, the movable member 53 is formed to be elastically deformable and has a leaf spring structure.

[0228] The cartridge 5K is packaged in a sterilization pack 400K. Unlike the sterilization pack 400H, the sterilization pack 400K does not include a hard film portion 400Hm. The sterilization pack 400K is formed to include a soft film portion 400Hn and sterilization paper 400b. The sterilization pack 400K may be made of only one type of material. The sterilization pack 400K may be formed without including sterilization paper. In that case, specifically, the sterilization pack 400K is formed from a sterilization film. Because the cartridge system 700K is provided with a movable member 53, there is no need to provide a hard film portion 400Hm, making it easier to manufacture.

[0229] [Operation of Cartridge System 700K] Next, operation of the cartridge system 700K will be described with reference to Figures 53 and 54. Figure 53 is a side view showing the cartridge 5K in a state where it has transitioned to the second configuration f2. Figure 54 is a front view showing the cartridge 5K in a state where it has transitioned to the second configuration f2.

[0230] When opening the sterilization pack 400K, the user places, for example, their thumb on the pushing portion 53a through the sterilization pack 400K.

[0231] Before a force is applied to the sterilization pack 400K, the cartridge 5K is contained in the storage area 400k of the sterilization pack 400K, as shown in Figure 52. The cartridge 5K does not protrude from the storage area 400k of the sterilization pack 400K. In other words, the cartridge 5K is in the first form f1.

[0232] Before a force is applied to the sterilization pack 400K, as shown in Figure 52, the cartridge 5K has a first length D1 in the longitudinal direction L. The first length D1 is the size of the cartridge 5K in the longitudinal direction L.

[0233] Before a force is applied to the sterilization pack 400K, the inside of the sterilization pack 400K is maintained in a sterile state, i.e., the cartridge 5K packaged in the sterilization pack 400K is maintained in a sterile state.

[0234] The user applies force to the sterilization pack 400K in the height direction H. The user applies force to the soft film portion 400Hn of the sterilization pack 400K. When force is applied to the sterilization pack 400K, the force is applied to the cartridge 5K via the sterilization pack 400K. At this time, force is applied to the movable member 53 in the height direction H. The movable member 53 moves in the longitudinal direction L relative to the sterilization pack 400K, as shown in Figure 53. The movable member 53 moves in the longitudinal direction L in a direction approaching the sterilization paper 400b.

[0235] As the movable member 53 moves toward the sterilization paper 400b, the protrusion 51H comes into contact with the sterilization paper 400b, causing the sterilization paper 400b to break. At this time, as shown in Figure 53, the end of the base end L2 of the cartridge 5K protrudes in the longitudinal direction L from the storage area 400k of the sterilization pack 400K. In other words, the cartridge 5K has transitioned from the first configuration f1 to the second configuration f2.

[0236] When the sterilization paper 400b is torn, the cartridge 5K has a second length D2 in the longitudinal direction L, as shown in Figure 53. The second length D2 is the size of the cartridge 5K in the longitudinal direction L. The size of the cartridge 5K includes the size of the movable member 53 in the longitudinal direction L. The second length D2 is longer than the first length D1.

[0237] When the sterilization paper 400b is torn, the sterilization state of the inside of the sterilization pack 400K is released, i.e., when the sterilization paper 400b is torn, the sterilization state of the cartridge 5K packaged in the sterilization pack 400K is released.

[0238] When the cartridge 5K pops out of the storage area 400k, the insertion opening 67 is exposed as shown in Figures 46 and 47, and the sheath 220 of the clip introducer device 200 can be inserted into the cartridge 5K.

[0239] (Modification 9) [Cartridge System 700L] Next, a cartridge system 700L according to modification 9 will be described with reference to Figures 56 to 61 .

[0240] Figure 56 is a plan view showing a cartridge system 700L according to Modification 9. Figure 57 is a plan view showing a cartridge system 700L according to Modification 9.

[0241] Cartridge system 700L is a modification of cartridge system 700H. In cartridge system 700L, cartridge 5H is packaged in sterilization pack 400L, which is a modification of sterilization pack 400H.

[0242] As shown in Figure 56, sterilization pack 400L differs from sterilization pack 400H in that it has a button 400La. Button 400La is provided on the tip side L1 of sterilization pack 400L. Button 400La is provided on the surface of the side of sterilization pack 400L in the height direction H. Button 400La may also be provided on the inside of sterilization pack 400L. Specifically, button 400La is provided on the inner surface of sterilization pack 400L. Button 400La is a member that has a sufficient length in the longitudinal direction L. Sterilization pack 400L may also be made of only one type of member. Sterilization pack 400L may be formed without including sterilization paper. In that case, specifically, sterilization pack 400L is formed of sterilization film.

[0243] Figure 58 is a side view showing the opening of the sterilization pack 400L. When the button 400La is pressed in the height direction H, the cartridge 5H packaged in the sterilization pack 400L is pushed towards the base end L2. When the cartridge 5H is pushed towards the base end L2, the sterilization paper 400b is broken by the protrusion 51H provided on the base end L2 of the cartridge 5H, exposing the insertion opening 67 of the cartridge 5H.

[0244] Figure 59 is a cross-sectional view showing a modified example of a sterilization pack 400L. The configuration of the sterilization pack 400L is not limited. As shown in Figure 59, the sterilization pack 400L may have sterilization paper 400b provided along the longitudinal direction L. In the modified example shown in Figure 59, the sterilization film 400a and the sterilization paper 400b are releasably connected. When the cartridge 5H moves to the base end side L2, the sterilization film 400a and the sterilization paper 400b are peeled off by a protrusion 51H provided on the cartridge 5H, and the sterilization pack 400L is opened.

[0245] Figure 60 is a cross-sectional view of a modified sterilization pack 400L. Figure 61 is a cross-sectional view of a modified sterilization pack 400L, showing the sterilization pack 400L opened. The sterilization pack 400L does not have to have a button 400La formed on it. As shown in Figures 60 and 61, by pushing the distal end L1 of the sterilization pack 400L in the height direction H, the cartridge 5H moves to the proximal end L2 in the longitudinal direction L, and the sterilization paper 400b is broken.

[0246] Although the third 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 modifications can be configured by appropriately combining them.

[0247] (Fourth Embodiment) [Cartridge System 700M] A cartridge system 700M according to a fourth embodiment of the present invention will be described with reference to Figures 62 to 65. The cartridge system 700M according to the fourth embodiment differs from the cartridge system 700 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.

[0248] Figure 62 is a plan view showing cartridge system 700M. Figure 63 is a cross-sectional view showing a cross section of cartridge system 700M shown in Figure 62 taken along line F63-F63. Like cartridge system 700, cartridge system 700M is a support system for easily loading a clip unit 1 into a clip introduction device (applicator) 200.

[0249] The cartridge system 700M is provided with a cartridge 5M. As shown in Figure 62, the cartridge 5M is formed with a protruding portion 54 that protrudes in the height direction H from the end of the base end side L2.

[0250] The cartridge system 700M is packaged in a sterilization pack 400M. The sterilization pack 400M has a notch 400Ma formed on the proximal end side L2, making it easy to open.

[0251] Figure 64 is a plan view of cartridge system 700M with sterilization pack 400M opened, and Figure 65 is a cross-sectional view taken along line F65-F65 of cartridge system 700M shown in Figure 64 with sterilization pack 400M opened.

[0252] When the sterilization pack 400M is opened, the opening of the sterilization pack 400M is widened in the height direction H by the protrusion 54 formed on the cartridge 5M. Therefore, as shown in Figure 65, the opening of the sterilization pack 400M is formed large in the height direction H. Therefore, even if the sheath 220 of the clip introduction device 200 is inserted into the insertion opening 67 of the cartridge 5M while the cartridge 5M is packaged in the sterilization pack 400M, the sheath 220 is unlikely to come into contact with the sterilization pack 400M. There is a risk that the sheath 220 will become contaminated if it comes into contact with the sterilization pack 400M, but because the opening of the sterilization pack 400M is formed large in the height direction H, the sheath 220 is unlikely to come into contact with the sterilization pack 400M and is therefore unlikely to become contaminated.

[0253] Although the fourth 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-described embodiment and modifications can be configured by appropriately combining them.

[0254] Fifth Embodiment [Cartridge System 700N] A cartridge system 700N according to a fifth embodiment of the present invention will be described with reference to Figures 66 to 68. The cartridge system 700N according to the fifth embodiment differs from the cartridge system 700 of the first embodiment in the configuration of the sterilization pack, etc. In the following description, components that are common to those already described will be assigned the same reference numerals, and duplicate description will be omitted.

[0255] Figure 66 is a plan view showing cartridge system 700N. Figure 67 is a perspective view showing the state in which sterilization pack 400N is being opened. Like cartridge system 700, cartridge system 700N is a support system for easily loading clip unit 1 into clip introduction device (applicator) 200.

[0256] The cartridge system 700N is provided with a sterilization pack 400N. The sterilization pack 400N contains a cartridge 5. It should be noted that the cartridge 5 does not necessarily have to have the protrusion 51 formed thereon.

[0257] As shown in Figure 66, the sterilization pack 400N is formed from a pair of films 400Na. The pair of films 400Na has a tear-open portion 400Nb and a seal portion 400Nc. The tear-open portion 400Nb is formed on the proximal end side L2 of the film 400Na. The seal portion 400Nc is formed on the outer peripheral edge of the film 400Na. The pair of seal portions 400Nc are adhered together to close the film 400Na.

[0258] As shown in Figure 67, the user can open the sterilization pack 400N by peeling off the pair of films 400Na starting from the tearing portion 400Nb.

[0259] Figure 68 is a plan view showing a modified example of a sterilization pack 400N. The seal 400Nc formed on the sterilization pack 400N may be divided into a first seal 400Nd and a second seal 400Ne, as shown in Figure 68. The first seal 400Nd is formed on the proximal end L2. The second seal 400Ne is formed further distally L1 than the first seal 400Nd and is more firmly adhered than the first seal 400Nd. This allows the user to peel off only the first seal 400Nd without peeling off the second seal 400Ne, preventing used materials from scattering.

[0260] 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-described embodiment can be configured by appropriately combining them.

[0261] 700 Cartridge system 100 Cartridge unit 1 Clip unit 2 Clip 21 Arm 211 First arm 212 Second arm 22 Tissue gripping portion 3 Pressing member (holder) 3A Pressing tube 3B Pipe 4 Connecting member 5 Cartridge 70 Cartridge body (case) 67 Insertion port (opening) 7S Treatment tool storage area 71 First area 74 Sheath insertion area 51 Projection 52 Outer tube member 52a First opening 52b Second opening 52c First convex portion 52d Second convex portion 53 Movable member 53a Push-in portion 53b Link 53c Protruding portion 54 Protruding portion 8 Support member 81 Support member body 82 Rotating shaft 400 Sterilization pack 400k Storage area 400a Sterilization film 400b Sterilization paper 400w: recessed portion 400v: groove 400d: stepped portion 200: clip introduction device (applicator) 220: sheath 221: distal tip 222: distal coil 224: proximal coil 230: operation wire 231: arrowhead hook 231a: engagement portion 231b: wire connection portion 232: wire 240: operation portion 241: operation portion main body 241a: slit portion 241b: rotating grip 242: slider 248: thumb ring f1: first form f2: second form L: longitudinal direction (insertion direction) H: height direction W: width direction

Claims

1. A cartridge system comprising: a treatment tool that can be loaded into an applicator; a cartridge that has an insertion opening through which the applicator can be inserted in an insertion direction and that houses the treatment tool; and a pack that has a storage area that can house the cartridge, wherein the cartridge can be transitioned between a first form in which it is housed in the storage area of ​​the pack and a second form in which at least a portion of the cartridge protrudes from the storage area, and wherein the pack is opened by transitioning the cartridge from the first form to the second form.

2. The cartridge system according to claim 1, wherein the cartridge is a deformable member and is capable of transitioning from the first configuration to the second configuration by deformation.

3. The cartridge system according to claim 1, wherein the cartridge, in the second configuration, protrudes from the storage area in a height direction perpendicular to the insertion direction.

4. A cartridge system as described in claim 3, wherein the storage area of ​​the pack is a space extending in the longitudinal direction, and when the cartridge is in the first form, the longitudinal direction and the insertion direction are substantially the same, and when the cartridge is in the second form, the longitudinal direction and the insertion direction intersect.

5. A cartridge system as described in claim 3, wherein the cartridge has a cartridge body and a support member capable of supporting the cartridge body, the support member extending in the insertion direction when the cartridge is in the first form, and extending intersecting the insertion direction when the cartridge is in the second form.

6. The cartridge system according to claim 3, wherein the cartridge is capable of transitioning from the first configuration to the second configuration in the height direction by receiving an external force via the pack.

7. A cartridge system as described in claim 3, wherein, in the height direction, when the cartridge is in the first configuration, the cartridge has a first height, and when the cartridge is in the second configuration, the cartridge has a second height greater than the first height, and the storage area of ​​the pack, when the cartridge is in the first configuration, is greater than the first height and less than the second height.

8. The cartridge system according to claim 7, wherein the cartridge has a cartridge body and a support member capable of supporting the cartridge body, and the second height is the dimension between an end of the cartridge body and an end of the support member in the height direction.

9. The cartridge system according to claim 1, wherein the cartridge protrudes from the storage area in the insertion direction when in the second configuration.

10. A cartridge system as described in claim 9, wherein, in the insertion direction, when the cartridge is in a first configuration, the pack has a first length, and when the cartridge is in a second configuration, the pack has a second length that is shorter than the first length.

11. The cartridge system described in claim 9, wherein the cartridge has a cartridge body and a support member capable of supporting the cartridge body, and in the insertion direction, when the cartridge is in a first form, the cartridge has a third length, and when the cartridge is in a second form, the cartridge has a fourth length greater than the third length.

12. The cartridge system according to claim 9, wherein the cartridge is capable of transitioning from the first configuration to the second configuration by receiving an external force in the insertion direction via the pack.

13. The cartridge system according to claim 9, wherein the cartridge is capable of transitioning from the first configuration to the second configuration by receiving a force via the pack in a height direction perpendicular to the insertion direction.

14. The cartridge system according to claim 1, wherein the cartridge has a cartridge body and a support member capable of supporting the cartridge body, and the cartridge can transition from the first configuration to the second configuration by the support member moving relative to the cartridge body.

15. The cartridge system according to claim 1, wherein the cartridge has a protrusion capable of breaking the pack.

16. A cartridge system according to claim 15, wherein the pack has a first packaging member and a second packaging member that is more easily broken than the first packaging member, and the protrusion projects toward the second packaging member.

17. The cartridge system according to claim 15, wherein the protrusion protrudes in a height direction perpendicular to the insertion direction.

18. The cartridge system according to claim 15, wherein the protrusion protrudes in the insertion direction.

19. The cartridge system described in claim 18, wherein the cartridge has a cartridge body and an outer tube within which the cartridge body can slide, and the protrusion is capable of transitioning between a housed state in which it is housed within the outer tube and a protruding state in which it protrudes from the outer tube.

20. The cartridge system according to claim 19, wherein the protrusion is in the housed state when the cartridge is in the first configuration, and the protrusion is in the protruding state when the cartridge is in the second configuration.

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