Blood clot cutting tool under digestive endoscopy

Abstract

The utility model relates to a blood clot cutting tool under a digestive endoscopy, which comprises an intubation tube, one end of the intubation tube is provided with a connecting rod, the connecting rod extends along the radial direction of the intubation tube, the connecting rod is rotatably connected with a first cutter body and a second cutter body, the cutting edge of the first cutter body is opposite to the cutting edge of the second cutter body, and the cutting edge of the second cutter body is opposite to the cutting edge of the first cutter body. A cutting edge of the first cutter body is tooth-shaped, and a cutter point of the second cutter body is bent towards the direction of the first cutter body; a traction assembly is installed in the insertion pipe and used for driving the first cutter body and the second cutter body to rotate and close in the opposite directions to form a straight line shape. The utility model discloses a blood clot cutting tool under a digestive endoscopy, and aims to provide the blood clot cutting tool under the digestive endoscopy in order to solve the problem that in the prior art, when a blood clot cutting tool under the digestive endoscopy is used for cutting the blood clot, the blood clot has a certain moving space in a digestive tract, so that the blood clot and a cutting edge of a cutter body possibly slide relative to each other during cutting; and the blood clot cutting efficiency is relatively low.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field, concretely relates to a digestive endoscope under blood clot cutting tool. BACKGROUND

[0002] Blood clot cutting tool is used for cutting blood clot under digestive endoscope.

[0003] In the prior art, when the blood clot cutting tool under the digestive endoscope cuts the blood clot, because the blood clot has a certain moving space in the digestive tract, it leads to the relative sliding between the blood clot and the blade of the knife body when cutting, which makes the cutting efficiency of the blood clot lower. UTILITY MODEL CONTENT

[0004] Therefore, the utility model aims at providing a blood clot cutting tool under digestive endoscope to solve the problem that the blood clot cutting tool under the digestive endoscope cuts the blood clot in the prior art, because the blood clot has a certain moving space in the digestive tract, it leads to the relative sliding between the blood clot and the blade of the knife body when cutting, which makes the cutting efficiency of the blood clot lower.

[0005] The utility model realizes the following technical scheme:

[0006] A blood clot cutting tool under digestive endoscope, including the pipe of inserting, the one end of pipe of inserting is installed with the connecting rod, the connecting rod extends along the radial of pipe of inserting, the first knife body and the second knife body are rotationally connected on the connecting rod, the blade of first knife body and the blade of second knife body are opposite, the blade of first knife body is dentate, the blade of second knife body is curved to the first knife body direction;

[0007] The traction assembly is installed in the pipe of inserting, and the traction assembly is used to drive the first knife body and the second knife body to rotate in opposite directions to close to a straight line.

[0008] Further, the traction assembly includes a connecting rope, both ends of the connecting rope are fixedly connected to one end of the first knife body and the second knife body in the pipe of inserting, a midpoint of the connecting rope is fixedly connected with a pull rope, the pull rope is located in the pipe of inserting and extends along the length direction of the pipe of inserting to the pipe opening of the pipe of inserting away from the first knife body and the second knife body.

[0009] Further, the first knife body and the second knife body are installed with the elastic support assembly at one end in the pipe of inserting, the first knife body and the second knife body are opened to X shape in the natural extension state of the elastic support assembly.

[0010] Further, the elastic supporting assembly comprises a spring, two ends of the spring are fixedly connected with the first cutter body and the second cutter body at one end of the cannula, and the first cutter body and the second cutter body are opened to be X-shaped in the natural extension state of the spring.

[0011] Further, the cannula is provided with an air suction pipe extending along the length direction of the cannula, and the air suction assembly is communicated with one end of the air suction pipe away from the first cutter body and the second cutter body.

[0012] Further, the air suction assembly comprises a first syringe, and the taper head of the first syringe is communicated with the air suction pipe.

[0013] Further, the cannula is provided with a water conveying pipe extending along the length direction of the cannula, and the water conveying assembly is communicated with one end of the water conveying pipe away from the first cutter body and the second cutter body.

[0014] Further, the water conveying assembly comprises a second syringe, water is contained in the empty barrel of the second syringe, and the taper head of the second syringe is communicated with the water conveying pipe.

[0015] Further, the cannula is provided with a mounting rod at one end close to the first cutter body and the second cutter body, the mounting rod is vertically arranged with the connecting rod, an arc-shaped plate is rotationally connected to the mounting rod, and an elastic connecting assembly is arranged between the arc-shaped plate and the mounting rod, and the arc-shaped plate is close to the first cutter body and the second cutter body in the natural extension state of the elastic connecting assembly.

[0016] Further, the elastic connecting assembly comprises a torsion spring, the torsion spring is sleeved on the mounting rod, and two ends of the torsion spring are fixedly connected with the arc-shaped plate and the mounting rod.

[0017] The utility model discloses the beneficial effect lies in:

[0018] The digestive endoscope under blood clot cutting tool, through the first cutter body and the second cutter body open into X shape, and the one end of cannula installation first cutter body and second cutter body is moved to the place of forming blood clot. Again through traction assembly drive first cutter body and second cutter body relative rotation close to a character shape, make blood clot be cut off. The first cutter body's blade is dentate, and when cutting, the friction between the first cutter body and the blood clot is increased. The second cutter body's blade tip bends to the first cutter body direction, and when cutting, the second cutter body's blade tip hooks the blood clot. When the first cutter body and the second cutter body are used in combination, the probability of the blood clot sliding between the blade of the first cutter body and the blade of the second cutter body is reduced, and the efficiency of blood clot cutting is improved.

[0019] The other advantages, objects, and features of the present utility model will be in part apparent and in part pointed out hereinafter in the specification, and in part will be observed by persons skilled in the art upon examination of the specification, or can be learned by practice of the present utility model. The objects and other advantages of the present utility model can be realized and obtained by means of the following description. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a perspective view of the present utility model;

[0021] Figure 2 It is a partial structure schematic of the present utility model Figure One ;

[0022] Figure 3 It is a partial structure schematic of the present utility model Figure Two ;

[0023] In the drawings:

[0024] 1, cannula;2, connecting rod;3, first cutter body;4, second cutter body;5, connecting rope;6, pull rope;7, spring;8, inhalation tube;9, first syringe;10, water delivery pipe;11, second syringe;12, mounting rod;13, arc plate;14, torsional spring. DETAILED DESCRIPTION

[0025] In order to make the objects, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. The components of the embodiments of the present utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the claimed present utility model, but only represents selected embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by persons skilled in the art without creative labor fall within the scope of protection of the present utility model.

[0027] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0028] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0030] Please see Figures 1-3 This utility model provides a technical solution: a blood clot cutting tool under digestive endoscopy, including a cannula 1, a connecting rod 2 installed at one end of the cannula 1, the connecting rod 2 extending radially along the cannula 1, a first blade 3 and a second blade 4 rotatably connected to the connecting rod 2, the blades of the first blade 3 and the second blade 4 facing each other, the blade of the first blade 3 being toothed, and the tip of the second blade 4 being bent toward the first blade 3;

[0031] The insertion tube 1 is equipped with a traction component, which is used to drive the first cutter body 3 and the second cutter body 4 to rotate in opposite directions and close into a straight line.

[0032] In this design: the blade of the first blade 3 is toothed, which increases the friction between the first blade 3 and the blood clot during cutting; the tip of the second blade 4 is bent towards the first blade 3, and hooks the blood clot during cutting; when the first blade 3 and the second blade 4 are used together, the probability of the blood clot sliding between the blades of the first blade 3 and the second blade 4 is reduced, thus improving the efficiency of cutting the blood clot.

[0033] Working principle and usage:

[0034] Step 1: First, open the first blade 3 and the second blade 4 into an X shape, and move the end of the cannula 1 with the first blade 3 and the second blade 4 installed to the location where the blood clot is formed.

[0035] Step 2: The traction assembly drives the first blade 3 and the second blade 4 to rotate relative to each other and close into a straight line, so that the blood clot is cut off.

[0036] In this embodiment, the traction assembly includes a connecting rope 5, both ends of the connecting rope 5 are fixedly connected to one end of the first cutter body 3 and the second cutter body 4 located in the cannula 1, and the midpoint of the connecting rope 5 is fixedly connected with a pull rope 6, the pull rope 6 is located in the cannula 1 and extends along the length direction of the cannula 1 to the pipe opening of the cannula 1 away from the first cutter body 3 and the second cutter body 4.

[0037] In this embodiment, the traction assembly includes a connecting rope 5, both ends of the connecting rope 5 are fixedly connected to one end of the first cutter body 3 and the second cutter body 4 located in the cannula 1, and the midpoint of the connecting rope 5 is fixedly connected with a pull rope 6, the pull rope 6 is located in the cannula 1 and extends along the length direction of the cannula 1 to the pipe opening of the cannula 1 away from the first cutter body 3 and the second cutter body 4. When cutting the blood clot, pull the pull rope 6 away from one end of the first cutter body 3 and the second cutter body 4, the connecting rope 5 moves towards the pull rope 6, the first cutter body 3 and the second cutter body 4 are closed in a straight line under the action of the pulling force of the connecting rope 5, and the blood clot is cut off.

[0038] In this embodiment, the first cutter body 3 and the second cutter body 4 located in one end of the cannula 1 are provided with an elastic support assembly, and the first cutter body 3 and the second cutter body 4 are opened in X shape in the natural extension state of the elastic support assembly.

[0039] In this embodiment, the first cutter body 3 and the second cutter body 4 located in one end of the cannula 1 are provided with an elastic support assembly, and the first cutter body 3 and the second cutter body 4 are opened in X shape in the natural extension state of the elastic support assembly. When the first cutter body 3 and the second cutter body 4 are not subjected to the pulling force of the connecting rope 5, the elastic support assembly is in a natural extension state, and the first cutter body 3 and the second cutter body 4 are opened in X shape. When the first cutter body 3 and the second cutter body 4 are subjected to the pulling force of the connecting rope 5, the elastic support assembly is in a compressed state, and the first cutter body 3 and the second cutter body 4 are closed in a straight line. It is convenient to cut the blood clot multiple times.

[0040] In this embodiment, the elastic support assembly includes a spring 7, the spring 7 is located between the first cutter body 3 and the second cutter body 4, both ends of the spring 7 are fixedly connected to one end of the first cutter body 3 and the second cutter body 4 located in the cannula 1, and the first cutter body 3 and the second cutter body 4 are opened in X shape in the natural extension state of the spring 7.

[0041] In this design, the elastic support component includes a spring 7, located between the first blade 3 and the second blade 4. Both ends of the spring 7 are fixedly connected to the ends of the first blade 3 and the second blade 4 located inside the insertion tube 1. In its naturally extended state, the first blade 3 and the second blade 4 are open in an X-shape. When the first blade 3 and the second blade 4 are not under tension from the connecting rope 5, the spring 7 is in its naturally extended state, and the first blade 3 and the second blade 4 are open in an X-shape. When the first blade 3 and the second blade 4 are under tension from the connecting rope 5, the spring 7 is in a compressed state, and the first blade 3 and the second blade 4 are closed in a straight line. This facilitates repeated cutting of blood clots.

[0042] In this embodiment: an air suction tube 8 is installed inside the insertion tube 1. The air suction tube 8 extends along the length of the insertion tube 1, and the end of the air suction tube 8 away from the first blade 3 and the second blade 4 is connected to an air suction component.

[0043] In this scheme: an suction tube 8 is installed inside the intubation cannula 1, extending along the length of the intubation cannula 1. The end of the suction tube 8 away from the first blade 3 and the second blade 4 is connected to the suction assembly. The suction assembly removes some air from the suction tube 8, creating a negative pressure environment within it. Under the suction force of the suction tube 8, the blood clot moves away from the stomach wall, exposing a gap between the blood clot and the stomach wall. Then, the traction assembly closes the first blade 3 and the second blade 4 into a straight line, thereby cutting the blood clot. The cut blood clot adheres to the opening of the suction tube 8, and is removed along with the intubation cannula 1.

[0044] In this embodiment: the suction assembly includes a first syringe 9, and the cone of the first syringe 9 is connected to the suction tube 8.

[0045] In this design, the suction assembly includes a first syringe 9, the conical tip of which is connected to the suction tube 8. Initially, the piston of the first syringe 9 is close to the conical tip. When aspirating the blood clot, the piston is moved away from the conical tip, drawing away some air from the suction tube 8, creating a negative pressure environment. Under the suction force of the suction tube 8, the blood clot moves away from the stomach wall, exposing a gap between the blood clot and the stomach wall. Then, the traction assembly closes the first blade 3 and the second blade 4 into a straight line, thus cutting the blood clot. The cut blood clot is then adhered to the opening of the suction tube 8 under the suction force. When the cannula 1 is removed, the blood clot is also removed.

[0046] In this embodiment: a water supply pipe 10 is installed inside the insertion tube 1. The water supply pipe 10 extends along the length of the insertion tube 1. The end of the water supply pipe 10 away from the first blade 3 and the second blade 4 is connected to a water supply component.

[0047] In the scheme, the water delivery pipe 10 is installed in the cannula 1 and extends along the length direction of the cannula 1, and the water delivery pipe 10 is communicated with the water delivery assembly at the end away from the first cutter body 3 and the second cutter body 4. The water delivery assembly sprays water on the first cutter body 3 and the second cutter body 4 through the water delivery pipe 10, the blood clot is separated from the stomach wall to a certain extent under the impact of the water, and a part of the gap between the blood clot and the stomach wall is exposed. Then the first cutter body 3 and the second cutter body 4 are closed in a straight line by the traction assembly, so as to realize shearing of the blood clot.

[0048] In the embodiment, the water delivery assembly includes the second syringe 11, the empty barrel of the second syringe 11 is filled with water, and the tapered head of the second syringe 11 is communicated with the water delivery pipe 10.

[0049] In the scheme, the water delivery assembly includes the second syringe 11, the empty barrel of the second syringe 11 is filled with water, and the tapered head of the second syringe 11 is communicated with the water delivery pipe 10. The water delivery assembly sprays water on the first cutter body 3 and the second cutter body 4 through the water delivery pipe 10, the blood clot is separated from the stomach wall to a certain extent under the impact of the water, and a part of the gap between the blood clot and the stomach wall is exposed. Then the first cutter body 3 and the second cutter body 4 are closed in a straight line by the traction assembly, so as to realize shearing of the blood clot.

[0050] In the embodiment, the mounting rod 12 is installed at the end of the cannula 1 close to the first cutter body 3 and the second cutter body 4, the mounting rod 12 is arranged perpendicularly to the connecting rod 2, the arc-shaped plate 13 is rotatably connected to the mounting rod 12, and the elastic connection assembly is installed between the arc-shaped plate 13 and the mounting rod 12. In the natural extension state of the elastic connection assembly, the arc-shaped plate 13 is close to the first cutter body 3 and the second cutter body 4.

[0051] In the scheme, the mounting rod 12 is fixedly connected to the end of the cannula 1 close to the first cutter body 3 and the second cutter body 4, the mounting rod 12 is arranged perpendicularly to the connecting rod 2, the arc-shaped plate 13 is rotatably connected to the mounting rod 12, and the elastic connection assembly is installed between the arc-shaped plate 13 and the mounting rod 12. In the natural extension state of the elastic connection assembly, the arc-shaped plate 13 is close to the first cutter body 3 and the second cutter body 4. In use, the first cutter body 3 and the second cutter body 4 are close to the blood clot, the arc-shaped plate 13 is attached to the top of the blood clot under the action of the elastic connection assembly, and after the first cutter body 3 and the second cutter body 4 shear off the blood clot, the blood clot is located between the first cutter body 3, the second cutter body 4 and the arc-shaped plate 13, so that the sheared blood clot is convenient to take out.

[0052] In the embodiment, the elastic connection assembly includes the torsion spring 14, the torsion spring 14 is sleeved on the mounting rod 12, and the two ends of the torsion spring 14 are fixedly connected with the arc-shaped plate 13 and the mounting rod 12 respectively.

[0053] In the scheme: the elastic connecting assembly includes a torsion spring 14, the torsion spring 14 is sleeved on the mounting rod 12, and the two ends of the torsion spring 14 are fixedly connected with the arc-shaped plate 13 and the mounting rod 12 respectively. When in use, the first cutter body 3 and the second cutter body 4 are close to the blood clot, the arc-shaped plate 13 is in close contact with the top of the blood clot under the action of the torsion spring 14, after the first cutter body 3 and the second cutter body 4 cut off the blood clot, the blood clot is located between the first cutter body 3, the second cutter body 4 and the arc-shaped plate 13, and the arc-shaped plate 13 exerts pressure on the blood clot under the action of the torsion spring 14, so that the cut blood clot is conveniently taken out.

[0054] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A blood clot cutting tool for digestive endoscopy, comprising a cannula (1), characterized in that: A connecting rod (2) is installed at one end of the insertion tube (1). The connecting rod (2) extends radially along the insertion tube (1). A first blade (3) and a second blade (4) are rotatably connected to the connecting rod (2). The blades of the first blade (3) and the second blade (4) are opposite to each other. The blade of the first blade (3) is toothed, and the tip of the second blade (4) is bent toward the first blade (3). The insertion tube (1) is equipped with a traction component, which is used to drive the first cutter body (3) and the second cutter body (4) to rotate in opposite directions and close into a straight line.

2. The endoscopic blood clot cutting tool according to claim 1, characterized in that: The traction assembly includes a connecting rope (5), the two ends of which are fixedly connected to the first cutter body (3) and the second cutter body (4) located inside the insertion tube (1), and a pull rope (6) is fixedly connected to the midpoint of the connecting rope (5). The pull rope (6) is located inside the insertion tube (1) and extends along the length of the insertion tube (1) to the opening of the insertion tube (1) away from the first cutter body (3) and the second cutter body (4).

3. The endoscopic blood clot cutting tool according to claim 2, characterized in that: The first blade (3) and the second blade (4) are equipped with an elastic support component at one end inside the insertion tube (1). When the elastic support component is in a naturally extended state, the first blade (3) and the second blade (4) are opened into an X shape.

4. The endoscopic blood clot cutting tool according to claim 3, characterized in that: The elastic support assembly includes a spring (7), which is located between the first blade (3) and the second blade (4). The two ends of the spring (7) are fixedly connected to the ends of the first blade (3) and the second blade (4) located inside the insertion tube (1). When the spring (7) is in its naturally extended state, the first blade (3) and the second blade (4) are opened into an X shape.

5. The endoscopic blood clot cutting tool according to claim 1, characterized in that: An air suction tube (8) is installed inside the insertion tube (1). The air suction tube (8) extends along the length of the insertion tube (1). The end of the air suction tube (8) away from the first blade (3) and the second blade (4) is connected to an air suction component.

6. The endoscopic blood clot cutting tool according to claim 5, characterized in that: The suction assembly includes a first syringe (9), the tip of which is connected to the suction tube (8).

7. The endoscopic blood clot cutting tool according to claim 1, characterized in that: A water supply pipe (10) is installed inside the insertion tube (1). The water supply pipe (10) extends along the length of the insertion tube (1). The end of the water supply pipe (10) away from the first blade (3) and the second blade (4) is connected to a water supply component.

8. The endoscopic blood clot cutting tool according to claim 7, characterized in that: The water delivery assembly includes a second syringe (11), the empty barrel of which is filled with water, and the cone of the second syringe (11) is connected to the water delivery pipe (10).

9. The endoscopic blood clot cutting tool according to claim 1, characterized in that: An installation rod (12) is installed at one end of the insertion tube (1) near the first cutter body (3) and the second cutter body (4). The installation rod (12) is perpendicular to the connecting rod (2). An arc plate (13) is rotatably connected to the installation rod (12). An elastic connecting component is installed between the arc plate (13) and the installation rod (12). When the elastic connecting component is naturally extended, the arc plate (13) approaches the first cutter body (3) and the second cutter body (4).

10. The endoscopic blood clot cutting tool according to claim 9, characterized in that: The elastic connection assembly includes a torsion spring (14), which is sleeved on the mounting rod (12). The two ends of the torsion spring (14) are fixedly connected to the arc plate (13) and the mounting rod (12) respectively.

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