Endoscope tip cap and capsular cavity removal kit

Abstract

The utility model provides an endoscope tip cap and a capsular cavity removal kit, and relates to the technical field of medical instruments, the endoscope tip cap provided by the utility model comprises a mounting section and a tip cap body section; the tip cap body section comprises a first working section and a second working section, and the first working section, the second working section and the mounting section are sequentially connected from the far end to the near end; the first working section and the second working section jointly define an inner cavity, the radial size of the first working section is gradually increased from the far end to the near end, and the radial size of the second working section is gradually decreased from the far end to the near end. The tip cap body section forms a two-end type conical structure, the two ends are thin, the middle is thick, an inner cavity with a large space is formed in the tip cap body section, more necrotic tissue can be contained, and the tip cap can be easily inserted into a sac cavity support or a pancreas necrotic sac cavity and can penetrate through the sac cavity support to be placed into the sac cavity or be attached to the inner wall of the sac cavity support to achieve sealing. The endoscope is convenient to wash, necrotic tissues are convenient to suck, and the operation efficiency and success rate are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to an endoscope tip cap and a cyst cavity debridement kit. Background Art

[0002] Endoscopic technology is a minimally invasive medical technology, which is widely used in the examination and treatment of digestive tract, respiratory tract, urinary system, etc. In the treatment of pancreatic diseases, endoscopic technology is also widely used. Especially in the debridement of necrotic tissue in walled-off necrosis (WON) of the pancreas, clinically, endoscopes and surgical instruments are usually used to directly remove necrotic tissue under direct vision of the endoscope.

[0003] In the operation of removing necrotic tissue in the pancreatic cyst cavity, instruments such as snare, basket or grasping forceps are usually used to grasp necrotic tissue. The opening and closing of the grasping mechanism require a certain operating space. Due to the limited operating space and irregular shape of the cyst cavity of walled-off necrosis of the pancreas, the operation of the instrument is hindered, reducing the operation efficiency and success rate. In addition, when the necrotic tissue is grasped and dragged from the cyst cavity into the digestive tract, it may slip or separate from the instrument, which will also affect the operation efficiency. Moreover, limited by the cyst cavity space and the obstruction of the necrotic tissue to the visual field, it is difficult to see the distal end of the instrument under the endoscope vision, which is prone to incorrect deployment and even risks of cyst wall injury, bleeding and perforation. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an endoscope tip cap and a cyst cavity debridement kit to improve the efficiency and success rate of the operation for removing necrotic tissue in the cyst cavity.

[0005] In the first aspect, the endoscope tip cap provided by the utility model includes: an installation section and a tip cap body section;

[0006] The tip cap body section includes: a first working section and a second working section, and the first working section, the second working section and the installation section are connected in sequence from the distal end to the proximal end;

[0007] The first working section and the second working section jointly enclose to form an inner cavity, the first working section and / or the second working section has a radial convex part, the diameter of the distal end of the first working section is smaller than the diameter of the radial convex part, and the diameter of the proximal end of the second working section is smaller than the diameter of the radial convex part.

[0008] Combined with the first aspect, the utility model provides the first possible implementation manner of the first aspect, wherein the first working section, the second working section and the installation section are configured as an integral structure with elasticity.

[0009] In combination with the first aspect, the present utility model provides a second possible implementation manner of the first aspect, wherein the axial dimension of the first working section is smaller than the axial dimension of the second working section.

[0010] In combination with the first aspect, the present utility model provides a third possible implementation manner of the first aspect, wherein the axial dimension of the first working section is larger than the axial dimension of the second working section.

[0011] In combination with the first aspect, the present utility model provides a fourth possible implementation manner of the first aspect, wherein a slot hole is provided on the side wall of the first working section.

[0012] In combination with the first aspect, the present utility model provides a fifth possible implementation manner of the first aspect, wherein the second working section is provided with rib protrusions.

[0013] In combination with the first aspect, the present utility model provides a sixth possible implementation manner of the first aspect, wherein the tip cap body section further includes a circular tube section, and the first working section, the circular tube section and the second working section are connected in sequence from the distal end to the proximal end.

[0014] In combination with the first aspect, the present utility model provides a seventh possible implementation manner of the first aspect, wherein the axial dimension of the tip cap body section is 10 mm to 30 mm.

[0015] In combination with the first aspect, the present utility model provides an eighth possible implementation manner of the first aspect, wherein the inner diameter of the distal opening of the first working section is 5 mm to 18 mm.

[0016] In combination with the first aspect, the present utility model provides a ninth possible implementation manner of the first aspect, wherein the maximum outer diameter of the radial protrusion is 15 mm to 20 mm.

[0017] In combination with the first aspect, the present utility model provides a tenth possible implementation manner of the first aspect, wherein a prompt marking portion is provided inside the installation section and / or the second working section;

[0018] When the endoscope is inserted into the installation section, the distal end of the endoscope is flush with or abuts against the prompt marking portion.

[0019] In a second aspect, the cyst cavity clearance kit provided by the present utility model includes: an endoscope, a cyst cavity stent, and the endoscope tip cap described in the first aspect;

[0020] The endoscope is connected to the installation section;

[0021] The cyst cavity stent is used to establish a trans-wall sinus tract between organs;

[0022] The endoscopic tip cap is used to insert into and pass through the inner wall of the cyst stent to perform a trans-wall surgery.

[0023] In combination with the second aspect, the cyst ablation kit further includes an internal device that is operated or deployed through the inner cavity.

[0024] In combination with the second aspect, the internal device includes at least one of a grasping forceps, a three-claw forceps, a snare, and a basket.

[0025] The embodiments of the present utility model bring the following beneficial effects: The first working section, the second working section, and the installation section are sequentially connected from the distal end to the proximal end. The first working section and the second working section jointly enclose to form an inner cavity. The radial dimension of the first working section increases from the distal end to the proximal end, and the radial dimension of the second working section decreases from the distal end to the proximal end. The tip cap body section forms a two-ended conical structure, with thin ends and a thick middle, and a relatively large inner cavity is formed inside, which can accommodate more necrotic tissues. It can not only be easily inserted into the cyst stent or the pancreatic necrosis cyst cavity, but also pass through the cyst stent and be placed into the cyst cavity or fit against the inner wall of the cyst stent to achieve sealing, facilitating endoscopic irrigation and aspiration of necrotic tissues, and improving the efficiency and success rate of the surgery.

[0026] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following specific preferred embodiments are given below, and in conjunction with the accompanying drawings, the detailed description is as follows. Description of the Drawings

[0027] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the related art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the related art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0028] Figure 1 The front view of the first endoscopic tip cap provided by the embodiment of the present utility model;

[0029] Figure 2 The cross-sectional view of the endoscopic tip cap provided by the embodiment of the present utility model;

[0030] Figure 3 The front view of the second endoscopic tip cap provided by the embodiment of the present utility model;

[0031] Figure 4 The front view of the third endoscopic tip cap provided by the embodiment of the present utility model;

[0032] Figure 5 The front view of the fourth endoscopic tip cap provided by the embodiment of the present utility model;

[0033] Figure 6 The front view of the fifth endoscope tip cap provided by the embodiment of the present utility model;

[0034] Figure 7 The front view of the sixth endoscope tip cap provided by the embodiment of the present utility model;

[0035] Figure 8 The front view of the seventh endoscope tip cap provided by the embodiment of the present utility model;

[0036] Figure 9 The cross-sectional view of the endoscope tip cap and the endoscope provided by the embodiment of the present utility model;

[0037] Figure 10 The cross-sectional view of the cyst cavity stent of a cyst cavity clearance kit in a trans-wall state provided by the embodiment of the present utility model;

[0038] Figure 11 The schematic diagram of a cyst cavity clearance kit provided by the embodiment of the present utility model in a state where the cyst cavity stent is inserted into the tip cap body section;

[0039] Figure 12 The schematic diagram of the cyst cavity clearance kit provided by the embodiment of the present utility model in a state where the necrotic tissue is received in the tip cap body section;

[0040] Figure 13 The schematic diagram of another cyst cavity clearance kit provided by the embodiment of the present utility model in a state where the cyst cavity stent is inserted into the tip cap body section;

[0041] Figure 14 The schematic diagram of another cyst cavity clearance kit provided by the embodiment of the present utility model in a state where the necrotic tissue is received in the tip cap body section;

[0042] Figure 15 The schematic diagram of a cyst cavity clearance kit equipped with a grasping forceps provided by the embodiment of the present utility model in a state where the cyst cavity stent is inserted into the tip cap body section;

[0043] Figure 16 The schematic diagram of another cyst cavity clearance kit equipped with a grasping forceps provided by the embodiment of the present utility model in a state where the cyst cavity stent is inserted into the tip cap body section.

[0044] Icon: 100 - mounting section; 101 - prompt marking part; 200 - tip cap body section; 201 - inner cavity; 210 - first working section; 211 - slot hole; 220 - second working section; 221 - rib; 230 - round tube section; 300 - endoscope; 400 - cyst cavity stent; 500 - digestive tract wall; 600 - pancreatic tissue; 610 - outer wall of cyst cavity; 700 - necrotic tissue; 800 - grasping forceps. Detailed implementation mode

[0045] The technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work belong to the protection scope of the present utility model.

[0046] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "middle part", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model. "Proximal end" refers to the end closer to the device operating device or farther from the operator, and "distal end" refers to the end farther from the device operating device or farther from the operator. In addition, the terms "first", "second", "third" are only used to describe name differences and cannot be understood as indicating or implying relative importance. For the physical quantities in the formula, if not separately marked, they should be understood as the basic quantities of the basic units of the International System of Units, or the derived quantities derived from the basic quantities through mathematical operations such as multiplication, division, differentiation or integration.

[0047] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0048] As Figures 1 to 9 shown, the endoscope tip cap provided by the embodiment of the present utility model includes: an installation section 100 and a tip cap body section 200; the tip cap body section 200 includes: a first working section 210 and a second working section 220, and the first working section 210, the second working section 220 and the installation section 100 are connected in sequence from the distal end to the proximal end; the first working section 210 and the second working section 220 jointly enclose to form an inner cavity 201, and the first working section 210 and / or the second working section 220 has a radial convex portion, the diameter of the distal end of the first working section 210 is smaller than the diameter of the radial convex portion, and the diameter of the proximal end of the second working section 220 is smaller than the diameter of the radial convex portion.

[0049] Specifically, the radial protrusion can be provided on the first working section 210 or the second working section 220, or the radial protrusion can be provided between the first working section 210 and the second working section 220. The first working section 210 and the second working section 220 can form a two-stage conical structure with smaller radial dimensions at both ends and a larger radial dimension of the radial protrusion in the middle, which enables the endoscope tip cap to be easily inserted into the cyst stent 400 or the pancreatic necrosis cyst cavity. The relatively large radial dimension of the radial protrusion can closely fit the inner wall of the cyst stent 400 to form a seal, facilitating endoscopic irrigation and aspiration of the necrotic tissue 700, and improving the efficiency and success rate of the operation.

[0050] It should be noted that a relatively large internal cavity 201 is formed inside the two-stage conical structure composed of the first working section 210 and the second working section 220. The internal cavity 201 can accommodate more necrotic tissue 700, thus preventing the overflow and separation of the necrotic tissue 700 and improving the cleaning efficiency of the necrotic tissue 700.

[0051] In the embodiment of the present invention, the first working section 210, the second working section 220 and the installation section 100 are configured as an integral structure with elasticity. The endoscope tip cap is processed from elastic materials such as silica gel, rubber, and TPU. The endoscope tip cap is soft and elastic, can be compressed and deformed when subjected to external extrusion, and can return to its initial shape after the external extrusion force is removed. When inserted into the cavity or contacting the tissue, it can reduce irritation and damage and reduce the risk of bleeding of the cavity wall.

[0052] As Figure 1 shown, in the first embodiment, the axial dimension L1 of the first working section 210 is smaller than the axial dimension L2 of the second working section 220. In other words, the length of the first working section 210 is shorter and the length of the second working section 220 is longer, and the part with a larger diameter in the middle of the tip cap body section 200 is closer to the distal end. Although the distal opening diameter of the first working section 210 gradually decreases, its influence on the field of view of the endoscope 300 is relatively small, and the operation visibility is better.

[0053] As Figure 3 shown, in the second embodiment, the axial dimension L1 of the first working section 210 is larger than the axial dimension L2 of the second working section 220. In other words, the length of the first working section 210 is longer and the length of the second working section 220 is shorter, and the part with a larger diameter in the middle of the tip cap body section 200 is closer to the proximal end. The axial dimension of the first working section 210 with a gradually decreasing diameter from the proximal end to the distal end is longer, making it easier to pass through the narrow channel or stent, and the distal end of the first working section 210 can be closer to the target tissue.

[0054] As Figure 4As shown, in the third embodiment, the distal cap body section 200 further includes a circular tube section 230, and the first working section 210, the circular tube section 230, and the second working section 220 are connected in sequence from the distal end to the proximal end. Among them, the outer wall of the circular tube section 230 is configured as a straight cylindrical structure. The circular tube section 230, being the part with the largest diameter of the distal cap body section 200, not only increases the radial support strength of the distal cap body section 200, but also can increase the inner cavity space of the distal cap body section 200.

[0055] Furthermore, the side wall of the first working section 210 is provided with a slot hole 211.

[0056] As Figure 5 shown, in the fourth embodiment, the generatrix connections of the first working section 210 and the second working section 220 can be configured as outwardly convex arcs. At this time, the volume of the distal cap body section 200 is larger, and a larger inner cavity space can be obtained.

[0057] As Figure 6 shown, in the fifth embodiment, the side wall of the first working section 210 is provided with a through groove or a slit. The through groove or the slit can be provided in several numbers and extend along the axial direction, circumferential direction or helical direction around the axis of the distal cap body section 200, which can reduce the radial support strength of the first working section 210, making it easier to be radially compressed and deformed and easier to insert into a narrow channel.

[0058] As Figure 7 shown, in the sixth endoscope distal cap, the side wall of the first working section 210 is provided with several radially penetrating through holes, which can also reduce the radial support strength of the first working section 210, making it easy to be radially compressed and placed into the cyst cavity.

[0059] It should be noted that the slot hole 211 is provided in the first working section 210, and the slot hole 211 avoids the proximal end of the first working section 210, so as to prevent the slot hole 211 from affecting the radial support performance of the position with a larger diameter of the distal cap body section 200.

[0060] As Figure 8 shown, in the seventh endoscope distal cap, convex ribs 221 can be added on the surface of the second working section 220. The convex ribs 221 can be configured as structures such as convex rings or raised thread lines, thereby improving the hardness and support strength of the second working section 220 and preventing the second working section 220 from being radially extruded to cause the overflow of necrotic tissue.

[0061] As Figure 2 and Figure 12 shown, the axial dimension L of the distal cap body section 200 is 10 mm to 30 mm, preferably 15 mm to 25 mm. At this time, the inner cavity 201 of the distal cap body section 200 has a sufficiently large space to meet the use requirements for clearing the necrotic tissue 700 of most patients.

[0062] Furthermore, the inner diameter of the distal opening of the first working section 210 is 5 mm to 18 mm, preferably 12 mm to 15 mm. This can not only ensure that the endoscope 300 has a sufficiently large field of view, but also facilitate the entry of the endoscope 300 into the inner cavity 201 through the distal opening of the first working section 210.

[0063] As Figure 2 , Figure 11 and Figure 12 shown, the maximum outer diameter of the radial protrusion of the tip cap body section 200 is 15 mm to 20 mm. The radial dimension in the middle of the inner cavity 201 is relatively large, which can accommodate more necrotic tissues 700. Moreover, the middle part of the tip cap body section 200 can be closely attached to the inner wall of the cyst stent 400, with a better sealing effect, facilitating endoscopic irrigation and aspiration of the necrotic tissues 700.

[0064] As Figure 2 and Figure 9 shown, a prompt marking portion 101 is provided inside the installation section 100 or the second working section 220, or a prompt marking portion 101 is provided at the connection between the installation section 100 and the second working section 220. When the endoscope 300 is inserted into the installation section 100, the distal end of the endoscope 300 is flush with or abuts against the prompt marking portion 101. The prompt marking portion 101 can be configured as a protrusion or a limiting groove adapted to the distal end of the endoscope 300. When the endoscope 300 is installed in place relative to the installation section 100, a sense of jerk can be generated to prompt the operator that the assembly is in place.

[0065] As Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 11 and Figure 12 shown, the connections at the axial sections of the outer wall of the endoscope tip cap are all configured as smooth transition portions, and the distal end of the outer wall of the first working section 210 is configured as a rounded corner structure, so that the outer surface of the endoscope tip cap forms a smooth linear shape in the axial section, facilitating smooth entry and exit from the human body and the cyst stent 400, and reducing the irritation and damage to tissues caused by the endoscope tip cap.

[0066] As Figure 11 and Figure 12 shown, the cyst clearance kit provided by the embodiment of the present invention includes: an endoscope 300, a cyst stent 400, and the endoscope tip cap described in the above embodiments. The endoscope 300 is connected to the installation section 100. See Figure 10, first, use the cyst stent 400 to penetrate through the digestive tract wall 500 and the outer wall 610 of the cyst to establish a trans-wall sinus tract between organs; the endoscopic tip cap is used to insert and pass through the inner wall of the cyst stent 400 to achieve trans-wall surgery. See Figure 11 and Figure 12 , the part with a relatively large radial dimension in the middle of the tip cap body section 200 can fit against the inner wall of the cyst stent 400, so as to perform flushing and removal of necrotic tissue 700 when the cyst is blocked.

[0067] When the tip cap body section 200 removes the necrotic tissue 700, the endoscopic tip cap can be inserted further distally into the cyst stent 400, and even a part of the tip cap body section 200 can extend into the cyst inside the pancreatic tissue 600. The outer wall in the middle of the tip cap body section 200 fits against the inner wall of the cyst stent 400, so as to seal the cyst space. When the endoscopic tip cap reaches the expected placement position, it can meet the operating distance and endoscopic vision range required for the surgery. The necrotic tissue 700 in the cyst is flushed by injecting liquid through the water injection channel or working forceps channel of the endoscope 300. Then, the gas, liquid and necrotic tissue 700 in the cyst are aspirated through the forceps channel of the endoscope 300 under negative pressure. When the aspiration stops, the necrotic tissue 700 stays in the inner cavity 201. The necrotic tissue 700 that enters the inner cavity 201 is not easy to fall off. At this time, instruments operating or deployed in the inner cavity 201, such as grasping forceps, snares, baskets, etc., can grasp and fix the necrotic tissue 700 that enters the inner cavity 201, thereby reducing the probability of the slippage or separation of the necrotic tissue. Finally, the endoscopic tip cap is removed from the cyst stent, and the necrotic tissue 700 in the inner cavity 201 can be discharged in the stomach, and the necrotic tissue 700 can be excreted naturally through the human digestive tract. Repeat the above process until the necrotic tissue 700 in the cyst is completely removed.

[0068] Such as Figure 13 and Figure 14 shown, the tip cap body section 200 can also penetrate through the cyst stent 400 and enter the cyst inside the pancreatic tissue 600. When ensuring that the tip cap body section 200 has a relatively large inner cavity space, the necrotic tissue 700 inside the cyst can be directly aspirated, which is also beneficial to avoid the overflow and shedding of the necrotic tissue 700 that enters the inside of the tip cap body section 200.

[0069] Such as Figure 15 and Figure 16 shown, the cyst debridement kit further includes built-in instruments that operate or are deployed through the inner cavity 201, and the built-in instruments can be used for operations such as cleaning and suturing inside the cyst.

[0070] In an alternative embodiment, the built-in instrument may include at least one of instruments such as forceps 800, three-jaw forceps, snare, and basket, which can be used to grasp and fix the necrotic tissue 700 entering the lumen 201, thereby reducing the probability of slippage or separation of the necrotic tissue 700.

[0071] In summary, the cyst cavity clearance kit equipped with the endoscopic tip cap has better operation convenience, higher surgical efficiency, better safety, reduces the risk of damage to the cyst cavity tissue, increases the capacity for the necrotic tissue 700, improves the clearance efficiency of the necrotic tissue 700, and has significant advantages in endoscopic medicine.

[0072] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An endoscope tip cap, characterized in that: include: A mounting section (100) and a tip cap body section (200); The tip cap body section (200) comprises: a first working section (210) and a second working section (220), wherein the first working section (210), the second working section (220) and the installation section (100) are sequentially connected from the distal end to the proximal end; The first working section (210) and the second working section (220) are jointly arranged to form an inner cavity (201); the first working section (210) and / or the second working section (220) have a radial protrusion; the distal diameter of the first working section (210) is smaller than the diameter of the radial protrusion; and the proximal diameter of the second working section (220) is smaller than the diameter of the radial protrusion.

2. The endoscope tip cap according to claim 1, characterized in that: The first working section (210), the second working section (220) and the installation section (100) are configured as an elastic integrated structure.

3. The endoscope tip cap according to claim 1, characterized in that: The axial dimension of the first working section (210) is smaller than the axial dimension of the second working section (220).

4. The endoscope tip cap according to claim 1, characterized in that: The axial dimension of the first working section (210) is greater than the axial dimension of the second working section (220).

5. The endoscope tip cap according to claim 1, characterized in that: The side wall of the first working section (210) is provided with a slot hole (211).

6. The endoscope tip cap according to claim 1, characterized in that: The second working section (220) is provided with a convex rib (221).

7. The endoscope tip cap according to claim 1, characterized in that: The tip cap body section (200) further comprises a circular tube section (230), and the first working section (210), the circular tube section (230) and the second working section (220) are sequentially connected from the distal end to the proximal end.

8. The endoscope tip cap according to claim 1, characterized in that: The axial dimension of the tip cap body section (200) is 10 mm to 30 mm.

9. The endoscope tip cap according to claim 1, characterized in that: The inner diameter of the distal opening of the first working section (210) is 5 mm to 18 mm.

10. The endoscope tip cap according to claim 1, characterized in that: The maximum outer diameter of the radial protrusion is 15 mm to 20 mm.

11. The endoscope tip cap according to claim 1, characterized in that: A prompt marking portion (101) is provided inside the installation section (100) and / or the second working section (220); When the endoscope (300) is inserted into the installation section (100), the distal end of the endoscope (300) is flush with or abuts against the prompt marking portion (101).

12. A cystectomy kit, characterized in that: include: An endoscope (300), a cystic stent (400), and an endoscope tip cap as claimed in any one of claims 1 to 11; The endoscope (300) is connected to the mounting section (100); The cystic cavity stent (400) is used to establish a transmural sinus tract between organs; The endoscope tip cap is used to be inserted into and pass through the inner wall of the cystic cavity stent (400) to achieve cross-wall surgery.

13. The cystectomy kit according to claim 12, characterized in that: The cystectomy kit also includes internal instruments that are operated or deployed through the lumen (201).

14. The cystectomy kit according to claim 13, characterized in that: The internal instrument includes at least one of a grasping forceps (800), a three-claw forceps, a snare and a basket.

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