Endoscope transparent cap and integrated resection device

Abstract

The utility model discloses an endoscope transparent cap and an integrated resection device, the endoscope transparent cap comprises a transparent cap body and a cutting ring, the transparent cap body is provided with a first end and a second end, the first end is provided with an endoscope joint used for connecting an endoscope, the transparent cap body is provided with a through hole penetrating along the direction from the first end to the second end, and the cutting ring is arranged on the transparent cap body. A longitudinal groove is formed in the inner wall of the through hole and is formed in the second end; the cutting ring is fixed in the longitudinal groove through the pipe fitting, the cutting ring can slide relative to the pipe fitting, the cutting ring is provided with a first ring part and a positioning part connected with the first ring part, and the positioning part is provided with a threaded connection part. Through the threaded connection between the threaded connection part and the second connection part, the threaded connection part forwards pushes the transparent cap and the cutting ring of the endoscope to move to a position near a lesion position and aims at the lesion to attract the lesion, so that the lesion enters the transparent cap body, and the threaded connection part is backwards pulled to tighten the cutting ring to cut off the lesion, so that the operation time is shortened.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of medical apparatus and instruments, more particularly, relate to a kind of endoscope transparent cap and integrated resection device. BACKGROUND

[0002] Endoscopic mucosal resection is an endoscopic technique developed from endoscopic polypectomy and endoscopic mucosal injection, which aims to remove part of the mucosa, with a depth of submucosal tissue, and is divided into injection mucosal resection, transparent cap assisted endoscopic mucosal resection and injection slice mucosal resection.

[0003] Transparent cap assisted mucosal resection can achieve high complete resection rate for submucosal lesions in the digestive tract. The specific operation is as follows: a transparent cap is placed in front of the endoscope lens, and after submucosal injection of the lesion, a specially designed crescent-shaped snare is placed in the groove at the top of the transparent cap. After suction, the lesion enters the transparent cap and is taken by the snare.

[0004] In clinical practice, the existing transparent cap assisted endoscopic resection requires the endoscopist to connect the hook part with the cutting ring, align the lesion for suction, and then power on and tighten the cutting ring to remove the lesion. However, the hook part can only pull the cutting ring, but cannot push the endoscope transparent cap and the cutting ring. SUMMARY

[0005] The main purpose of the utility model is to provide an endoscope transparent cap and integrated resection device. Through the threaded connection between the threaded connection part and the second connection part, the threaded connection part can push the endoscope transparent cap and the cutting ring forward, and the threaded connection part can pull the cutting ring backward to tighten and remove the lesion, thereby shortening the operation time.

[0006] According to the first aspect of the utility model, an endoscope transparent cap is provided, comprising:

[0007] The transparent cap body has a first end and a second end. The first end has an endoscope joint for connecting an endoscope. The transparent cap body has a through hole extending from the first end to the second end. The inner wall of the through hole is provided with a longitudinal groove, and the longitudinal groove is arranged at the second end.

[0008] The cutting ring is fixed in the longitudinal groove and can slide relative to the tube. The cutting ring has a first ring part and a positioning part connected to the first ring part. The positioning part is provided with a threaded connection part.

[0009] In a specific embodiment of the utility model, the positioning part is connected to the first ring part through two first connection parts. The first connection parts are arranged in the tube. The first ring part and the positioning part are located outside the two ends of the tube.

[0010] In a specific embodiment of the utility model, the threaded connection part is a threaded hole arranged on the positioning part, or the threaded connection part is an external thread arranged on the outer side of the positioning part.

[0011] In a specific embodiment of the utility model, the pipe is internally provided with first cavities that are not connected to each other, and one first connecting part corresponds to one first cavity.

[0012] In a specific embodiment of the utility model, the annular protrusion is internally provided with an annular groove for placing the first ring part.

[0013] In a specific embodiment of the utility model, the end face of the annular protrusion close to the longitudinal groove is a plane or is concave.

[0014] According to the second aspect of the utility model, the integrated resection device is provided, including snaring device and endoscope transparent cap, the snaring device includes handle and push-pull piece that moves relative to the handle, the handle is internally provided with conductive part, the conductive part is sheathed with outer sheath, one end of the conductive part is provided with the second connecting part that is connected with threaded connection part, the push-pull piece is connected with the conductive part, to make the second connecting part can be stretched out from the outer sheath.

[0015] In a specific embodiment of the utility model, the push-pull piece is provided with a power connection interface for connecting a high-frequency electrotome.

[0016] In a specific embodiment of the utility model, one end or both ends of the push-pull piece are provided with a driving ring.

[0017] The above technical solution of the utility model has at least one of the following advantages or beneficial effects: the utility model sets a longitudinal groove on the transparent cap body, the longitudinal groove is arranged at one end away from the endoscope joint, the cutting ring is fixed in the longitudinal groove through the pipe, the operator only needs to install the endoscope transparent cap after finding the lesion under the endoscope, uses the matched snaring device, and through the threaded connection between the threaded connection part and the second connecting part, the threaded connection part pushes the endoscope transparent cap and the cutting ring forward, moves to the vicinity of the lesion position, aligns the lesion suction, makes the lesion enter the transparent cap body, the threaded connection part tightens the cutting ring backward to resect the lesion, which shortens the operation time, makes the endoscope transparent cap assisted endoscopic mucosal resection widely applied. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further described in connection with the drawings and embodiments;

[0019] Figure 1is a structural schematic view of the endoscope transparent cap in an embodiment of the utility model;

[0020] Figure 2 is a sectional view of the endoscope transparent cap in an embodiment of the utility model;

[0021] Figure 3 is a structural schematic view of the cutting ring fixed through the pipe fitting in an embodiment of the utility model;

[0022] Figure 4 is a structural schematic view of the integrated cutting device in an embodiment of the utility model;

[0023] Figure 5 is a structural schematic view of the hook part and the cutting ring in an embodiment of the utility model. DETAILED DESCRIPTION

[0024] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as a limitation on the utility model.

[0025] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model.

[0026] In the description of the utility model, the meaning of several is one or more, and the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If the first and the second are described, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0027] In addition, the terms "first" and "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more features.

[0028] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term "connect" should do broad sense understanding, for example, can be fixed connection or movable connection, also can be detachable connection or non detachable connection, or integrally connect;Can be mechanical connection, also can be electric connection or can communicate with each other;It can be directly connected, also can be indirectly connected through intermediate medium, can be the communication of two elements internally, indirect communication or the interaction relationship of two elements.

[0029] The following disclosure provides many different implementations or examples to implement different aspects of the utility model.

[0030] Referring to Figures 1 to 5 As shown in the figure, the integral resection device includes a snare device 20 and an endoscope transparent cap, the snare device 20 includes a handle 21 and a push-pull piece 22 moving relative to the handle 21, the handle 21 is provided with a conductive part 26, the conductive part 26 is sleeved with an outer sheath 25, one end of the conductive part 26 is provided with a second connecting part 27, and the conductive part 26 and the second connecting part 27 are conductive metal pieces.The conductive part 26 and the second connecting part 27 are integrally replaceable articles.The push-pull piece 22 is connected with the conductive part 26, so that the second connecting part 27 can be stretched out of the outer sheath 25, the push-pull piece 22 is provided with a power supply interface 24 for connecting a high-frequency electrotome, the second connecting part 27 is electrically connected with the power supply interface 24, one end or both ends of the push-pull piece 22 is provided with a driving ring 23, and the driving ring 23 is used to drive the push-pull piece 22 to move relative to the handle.The outer sheath 25 is a plastic tubular article, mainly plays the protection second connecting part 27 and insulating effect.

[0031] The endoscope transparent cap includes a transparent cap body 10 and a cutting ring 16, the transparent cap body 10 has a first end 11 and a second end 12, the first end 11 has an endoscope connector 13 for connecting an endoscope, the transparent cap body 10 has a through hole penetrating in the direction from the first end 11 to the second end 12, the inner wall of the through hole is provided with a longitudinal groove 17, the longitudinal groove 17 is arranged at the second end 12, and the second end 12 is away from the first end 11;The cutting ring 16 is fixed in the longitudinal groove 17 through a pipe 19, the cutting ring 16 can slide relative to the pipe 19, the cutting ring 16 has a first ring part 161 and a positioning part 162 connected with the first ring part 161, and a threaded connecting part 164 is arranged on the positioning part 162.The outer diameter of the endoscope connector 13 is less than the outer diameter of the transparent cap body 10, so as to form a stepped shape.The second end 12 is provided with a guide surface, and the guide surface is a smooth transition arc surface or a plane.

[0032] The operator only needs to install the endoscope transparent cap after finding the lesion under the endoscope, uses the matched snare device 20, connects the second connecting part 27 with the threaded connecting part 164, pushes the endoscope transparent cap and the cutting ring forward through the threaded connecting part 164, moves to the position near the lesion, aligns the lesion and sucks, makes the lesion enter the endoscope transparent cap body, and the threaded connecting part 164 pulls back to tighten the cutting ring to remove the lesion, thereby shortening the operation time and making the endoscope transparent cap assisted endoscopic mucosal resection be widely applied.

[0033] It should be noted that the integral type in the integral type resection device refers to that the cutting ring 16 and the transparent cap body 10 are fixed as an integral whole. The endoscope transparent cap is detachably installed on the endoscope and is a disposable article. The snare device 20 is a disposable article.

[0034] In an embodiment of the utility model, the positioning part 162 is connected with the first ring part 161 through two first connecting parts 163, the first connecting part 163 is arranged in the pipe, and the first ring part and the positioning part 162 are located outside both ends of the pipe. Specifically, the first ring part 161 has a first notch, the first notch has two first connecting points, the positioning part 162 has two second connecting points, and the first connecting part 163 is arranged between the first connecting point and the second connecting point. The two first connecting parts 163 are arranged in the pipe 19. Further, the two first connecting parts 163 are arranged in parallel. The positioning part 162 is arranged outside the pipe 19, so that the second connecting part 27 and the positioning part 162 can be screw-connected.

[0035] In an embodiment of the utility model, the inside of the pipe 19 is provided with first cavities that are not communicated with each other through a partition block, one first connecting part 163 corresponds to one first cavity, and the contact of the two first connecting parts 163 is prevented to cause short circuit.

[0036] In an embodiment of the utility model, the threaded connecting part 164 is a threaded hole arranged on the positioning part 162, or the threaded connecting part 164 is an external thread arranged outside the positioning part 162. It should be noted that when the threaded connecting part 164 is a threaded hole, the second connecting part 27 is a threaded rod with an external thread. When the threaded connecting part 164 is an external thread arranged outside the positioning part 162, the second connecting part is a threaded hole with an internal thread.

[0037] In an embodiment of the utility model, the through hole is provided with a ring-shaped protrusion 18, and the end face of the ring-shaped protrusion 18 close to the longitudinal groove forms a ring-shaped groove 15 for placing the first ring part. When the pipe 19 pushes the cutting ring 16 to be installed in the through hole, the first ring part 161 can be placed in the ring-shaped groove 15, the ring-shaped groove 15 supports the first ring part 161, the positioning part 162 protrudes outward and is connected with the pipe 19, so that the second connecting part and the positioning part 162 can be screw-connected.

[0038] In one embodiment of the utility model, the end face of the annular protrusion 18 close to the longitudinal groove 17 is a plane or is concave. When it is concave, the first ring part 161 is fixed easily.

[0039] The following is a preferred embodiment of the utility model in use:

[0040] (1) When not in use: the second connecting part 27 of the snare device 20 is in the tube of the outer sheath 25; it is convenient to pass through the endoscope forceps channel;

[0041] (2) When a submucosal tumor of the digestive tract is encountered,

[0042] First, the endoscope transparent cap is connected to the front end of the endoscope through the endoscope joint 13;

[0043] Second step: the snare device 20 with the second connecting part 27 is placed into the endoscope forceps channel;

[0044] Third step: the second connecting part 27 is screwed with the threaded connecting part 164 by pushing the push-pull piece 22 forward through the driving ring 23, the second connecting part 27 is stretched out of the outer sheath 25, the endoscope transparent cap and the cutting ring are pushed forward and moved to the vicinity of the lesion position;

[0045] Fourth step: the lesion is sucked into the transparent cap body 10 of the built-in cutting ring 16 under the endoscope, at the same time, the high-frequency electric knife power connection joint is connected to the power connection joint of the cutting device, and the push-pull piece 22 is moved backward through the driving ring 23 to tighten the cutter, and the lesion is cut off.

[0046] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, the scope of the utility model is defined by the claims and its equivalents.

Claims

1. An endoscope transparent cap, characterized by, The utility model relates to a transparent cap for endoscope, comprising: a transparent cap body having a first end and a second end, the first end having an endoscope joint for connecting an endoscope, the transparent cap body having a through hole extending through from the first end to the second end, an inner wall of the through hole being provided with a longitudinal groove, the longitudinal groove being arranged at the second end; a cutting ring being fixed in the longitudinal groove through a pipe, the cutting ring being slidable relative to the pipe, the cutting ring having a first ring part and a positioning part connected with the first ring part, the positioning part being provided with a threaded connection part.

2. The endoscope transparent cap of claim 1, wherein, The positioning part is connected with the first ring part through two first connecting parts, the first connecting parts being arranged in the pipe, the first ring part and the positioning part being located outside both ends of the pipe.

3. The endoscope transparent cap of claim 2, wherein, The threaded connection part is a threaded hole arranged on the positioning part, or the threaded connection part is an external thread arranged outside the positioning part.

4. The endoscope transparent cap of claim 2, wherein, The pipe is provided with first cavities that are not communicated with each other, one first connecting part corresponding to one first cavity.

5. The endoscope transparent cap according to any one of claims 1 to 4, characterized in that, An annular protrusion is arranged inside the through hole, an end face of the annular protrusion close to the longitudinal groove forming an annular groove for placing the first ring part.

6. The endoscope transparent cap of claim 5, wherein, The end face of the annular protrusion close to the longitudinal groove is a plane or is concave.

7. An integrated resection device, characterized in that The utility model further relates to a snare device and an endoscope transparent cap as claimed in any one of claims 1 to 6, the snare device comprising a handle and a push-pull piece moving relative to the handle, a conductive part being arranged in the handle, the conductive part being sleeved with an outer sheath, one end of the conductive part being provided with a second connecting part connectable with the threaded connection part, the push-pull piece being connected with the conductive part so that the second connecting part can be extended out of the outer sheath.

8. The unitary resection device of claim 7, wherein, An electrically conductive interface for connecting a high-frequency electrotome is arranged on the push-pull piece.

9. The unitary resection device of claim 7, wherein, A driving ring is arranged at one end or both ends of the push-pull piece.

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