Multidirectional endoscope auxiliary traction device

Abstract

The utility model relates to a multidirectional auxiliary traction device for an endoscope, belongs to the technical field of medical instruments, and solves the problem that a traction ring in the prior art is simple in structure and single in traction direction. The multidirectional endoscope auxiliary traction device comprises a positioning ring and a plurality of traction rings, the number of the positioning ring is one, and the number of the traction rings is multiple. The positioning ring and the traction rings are elastic rings, and the positioning ring and the traction rings are connected into a whole; the plurality of traction rings are connected to the lower end of the positioning ring and are arranged at intervals relative to the circumferential direction of the positioning ring; and the lengths of the plurality of traction rings are different. The multidirectional auxiliary traction device for the endoscope can realize multi-point traction, can adjust the traction direction, and can realize different degrees of traction effects by selecting traction rings with different lengths for traction.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a multi-directional endoscope-assisted traction device. Background Art

[0002] Minimally invasive digestive endoscopic surgery, with the goal of "curing the disease and restoring normal function," is gaining increasing popularity in clinical practice. To address the technical challenge of adequately exposing the operative field of view, assisted traction technology has emerged. Considered the "third hand" of endoscopic therapy, assisted traction provides a good visual field and operating space for minimally invasive digestive endoscopic surgery, improving both efficiency and safety.

[0003] Most existing traction devices are double traction rings formed by a rubber ring in an 8-shape. Although they are simple and convenient to use, they have the defects of relatively single traction direction, relatively fixed traction force and angle, and cannot provide multi-angle and multi-directional traction.

[0004] Therefore, it is necessary to provide a new traction device to achieve the adjustment of multi-point traction direction and the change of traction force. Utility Model Content

[0005] In view of the above analysis, the present invention aims to provide a multi-directional endoscope-assisted traction device to solve the problems of the existing traction device having a single traction direction and being unable to adjust the traction force and traction angle.

[0006] The purpose of this utility model is mainly achieved through the following technical solutions:

[0007] A multi-directional endoscope auxiliary traction device comprises: a positioning ring and a plurality of traction rings;

[0008] There is one positioning ring and a plurality of traction rings;

[0009] The positioning ring and the traction ring are both elastic rings, and the positioning ring and the plurality of traction rings are connected as one body;

[0010] A plurality of traction rings are connected to the lower end of the positioning ring and are spaced apart relative to the circumferential direction of the positioning ring;

[0011] The lengths of the plurality of traction rings are different.

[0012] Furthermore, there are four traction rings, namely a first traction ring, a second traction ring, a third traction ring and a fourth traction ring; the first traction ring, the second traction ring, the third traction ring and the fourth traction ring are distributed at equal intervals along the circumferential direction of the positioning ring.

[0013] Furthermore, the first traction ring, the second traction ring, the third traction ring and the fourth traction ring are arranged at an obtuse angle to the positioning ring.

[0014] Furthermore, the positioning ring and the plurality of traction rings are fixed by bonding or integrally formed.

[0015] Alternatively, the positioning ring and the plurality of traction rings are connected via an intermediate connecting piece with a hard structure.

[0016] Furthermore, the intermediate connecting member includes: a first connecting column, a second connecting column, a third connecting column, a fourth connecting column and a fifth connecting column; the second connecting column, the third connecting column, the fourth connecting column and the fifth connecting column are fixedly arranged at the lower end of the first connecting column and are evenly distributed in an array in the circumferential direction of the first connecting column; the second connecting column, the third connecting column, the fourth connecting column and the fifth connecting column are all arranged at an obtuse angle to the first connecting column and are fixed as a whole.

[0017] Furthermore, the positioning ring and the first connecting column of the intermediate connecting member are fixedly connected by bonding.

[0018] Furthermore, the second connecting column, the third connecting column, the fourth connecting column and the fifth connecting column are respectively fixed to the first traction ring, the second traction ring, the third traction ring and the fourth traction ring by bonding.

[0019] Alternatively, spherical grooves are provided at the ends of the second connecting column, the third connecting column, the fourth connecting column and the fifth connecting column; spherical protrusions are provided at the ends of the four traction rings, and the spherical protrusions can be stuck into the spherical grooves, so that the four traction rings are respectively connected to the second connecting column, the third connecting column, the fourth connecting column and the fifth connecting column to achieve spherical joint connections.

[0020] Furthermore, the first traction ring, the second traction ring, the third traction ring and the fourth traction ring are all of different colors.

[0021] The technical solution of this utility model can achieve at least one of the following effects:

[0022] 1. The utility model is a multi-directional endoscopic-assisted traction device, which is provided with a positioning ring and multiple traction rings in the circumferential direction of the positioning ring. The positioning ring and the multiple traction rings are clamped and fixed to the tissue surface by metal clips. It can perform multi-point traction (2, 3 or 4 points) on the tissue surface inside the gastric cavity (can also be used for surgical traction of other organs), thereby realizing the adjustment of the traction direction, and can provide "multi-angle, multi-directional, real-time and full-range" traction.

[0023] 2. The utility model is a multi-directional endoscope-assisted traction device, which is provided with multiple traction rings of different lengths. When traction is performed through the traction device, by selecting traction rings of different lengths for traction, the magnitude of the traction force can be changed, thereby achieving different degrees of traction effects (different degrees of surface lifting).

[0024] 3. The multi-directional endoscope-assisted traction device of the present invention realizes the adjustable and repeatable traction state by setting multiple traction rings, which is simple and convenient. It can be used for traction of the surface of the internal tissue of organs such as the esophagus, stomach, and colon during surgical operations, thereby fully exposing the field of view and facilitating surgical operations.

[0025] In the present invention, the above-mentioned technical solutions can be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the subsequent description, and some advantages will become apparent from the description or be understood through practice of the present invention. The objectives and other advantages of the present invention can be achieved and obtained through the contents particularly pointed out in the description and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. Throughout the accompanying drawings, the same reference symbols denote the same components.

[0027] Figure 1 The multi-directional endoscope-assisted traction device of embodiment 1 of the present utility model;

[0028] Figure 2 The multi-directional endoscope-assisted traction device of embodiment 2 of the present utility model;

[0029] Figure 3 This is a front view of the intermediate connecting member of the multi-directional endoscope-assisted traction device according to Example 2 of the present utility model;

[0030] Figure 4 This is a bottom view of the intermediate connecting member of the multi-directional endoscope-assisted traction device according to Example 2 of the present utility model;

[0031] Figure 5 This is a schematic diagram of the hinged state of the intermediate connecting member and the traction ring of the multi-directional endoscope-assisted traction device of Example 3 of the present utility model;

[0032] Figure 6 This is a structural schematic diagram of the intermediate connecting member of the multi-directional endoscope-assisted traction device of Example 3 of the present utility model;

[0033] Figure 7 This is a structural schematic diagram of a traction ring of a multi-directional endoscope-assisted traction device according to Example 3 of the present utility model;

[0034] Figure 8 This is a structural schematic diagram of the multi-directional endoscope-assisted traction device of Example 4 of the present utility model.

[0035] Reference numerals:

[0036] 1-positioning ring; 2-first traction ring; 3-second traction ring; 4-third traction ring; 5-fourth traction ring; 6-intermediate connecting piece; 21-spherical protrusion; 61-first connecting column; 62-second connecting column; 63-third connecting column; 64-fourth connecting column; 65-fifth connecting column; 66-spherical groove. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, and are not used to limit the scope of the present invention.

[0038] Example 1

[0039] A specific embodiment of the present utility model discloses a multi-directional endoscope-assisted traction device, such as Figure 1 As shown, it includes: a positioning ring 1 and multiple traction rings; wherein, there is one positioning ring 1 and multiple traction rings; the positioning ring 1 and the traction ring are both elastic rings, and the positioning ring 1 and the multiple traction rings are connected as a whole; the multiple traction rings are connected to the lower end of the positioning ring 1 and are spaced apart in the circumferential direction relative to the positioning ring 1.

[0040] Preferably, if Figure 1 As shown, there are four traction rings, namely the first traction ring 2, the second traction ring 3, the third traction ring 4 and the fourth traction ring 5; the first traction ring 2, the second traction ring 3, the third traction ring 4 and the fourth traction ring 5 are distributed at equal intervals along the circumferential direction of the positioning ring 1, and the first traction ring 2, the second traction ring 3, the third traction ring 4 and the fourth traction ring 5 are set at an obtuse angle to the positioning ring 1.

[0041] Furthermore, the lengths of the plurality of traction rings are different.

[0042] In a preferred embodiment of this invention, the first traction ring 2 and the third traction ring 4 are of equal length, the second traction ring 3 and the fourth traction ring 5 are of equal length, and the second traction ring 3 is longer than the first traction ring 2. In other words, when traction rings of different lengths are used in conjunction with the positioning ring 1 for traction, the different lengths of the traction rings result in different amounts of deformation, thereby providing different traction forces.

[0043] In another preferred embodiment of the present invention, the lengths of the first traction ring 2, the second traction ring 3, the third traction ring 4 and the fourth traction ring 5 are increased in sequence; when in use, the surgeon can select traction rings of different lengths for traction as needed, and then adjust the magnitude of the traction force, ultimately achieving different degrees of traction on organ tissues and achieving an appropriate degree of exposure.

[0044] Furthermore, in this embodiment, the positioning ring 1 and the plurality of traction rings are fixed as one body by bonding or integrally forming.

[0045] Preferably, the positioning ring 1 and the traction ring are made of elastic rubber or elastic fiber bundles.

[0046] During implementation, taking into account the force requirements of traction, the sizes of traction rings in multiple directions are slightly different. According to the size of the wound and the requirements of traction force, different numbers and positions of traction rings can be adjusted for traction, thereby achieving the adjustment of the traction direction and traction force for resecting the lesion.

[0047] The positioning ring 1 is clamped and fixed to the fundus of the stomach by a metal clamp to form a hanging point; further, the traction ring and the tissue that needs to be pulled are also clamped and fixed by a metal clamp, and the deformation of the traction ring provides traction to the tissue structure, thereby lifting the tissue structure (surface) upward, thereby exposing the surgical site to facilitate surgical operations.

[0048] Since the traction device of this embodiment is provided with multiple traction rings, when performing surgery inside the gastric cavity, one or more traction rings can be selected as needed to cooperate with the positioning ring 1 for traction, thereby realizing multi-point traction; during multi-point traction, the third traction point is located on the side of the top suspension point and the bottom traction point, which can provide lateral traction. On the one hand, the direction of the traction force (the combined direction of the longitudinal force and the lateral force) can be adjusted; on the other hand, the magnitude of the traction force can be adjusted to a certain extent, thereby realizing multi-directional traction and adjustment of the traction force.

[0049] It is worth noting that the functions of the positioning ring 1 and the traction ring of the present invention are interchangeable. In actual use, the surgeon can use them as needed. The names of the structural components and the purpose of the product do not limit the scope of protection of the traction device of the present invention. The length of the traction ring in this embodiment refers to the distance between the two end points of the traction ring.

[0050] The traction device of the present invention has a simple structure and is easy to use. It can be easily inserted into the human organ to be operated on (stomach, intestine, etc.) through an endoscope channel or other auxiliary channels to achieve multi-directional traction and adjustment of traction strength.

[0051] Example 2

[0052] A specific embodiment of the present invention is improved on the basis of embodiment 1:

[0053] In this embodiment, the positioning ring 1 and the traction ring are connected via an intermediate connecting piece 6 .

[0054] Specifically, if Figure 3 、 Figure 4 As shown, the intermediate connecting member 6 includes: a first connecting column 61, a second connecting column 62, a third connecting column 63, a fourth connecting column 64 and a fifth connecting column 65; the second connecting column 62, the third connecting column 63, the fourth connecting column 64 and the fifth connecting column 65 are fixedly arranged at the lower end of the first connecting column 61, and are evenly distributed in an array in the circumferential direction of the first connecting column 61; the second connecting column 62, the third connecting column 63, the fourth connecting column 64 and the fifth connecting column 65 are all arranged at an obtuse angle to the first connecting column 61, and are fixed as an integrated structure.

[0055] Preferably, the angle between the first connecting column 61 and the second connecting column 62 is 120°.

[0056] Preferably, the intermediate connecting member 6 is a hard structure; illustratively, the intermediate connecting member 6 is made of hard plastic or metal.

[0057] Further, if Figure 2 As shown, the first connecting column 61 is fixedly connected to the positioning ring 1; the second connecting column 62, the third connecting column 63, the fourth connecting column 64 and the fifth connecting column 65 are fixedly connected to the first traction ring 2, the second traction ring 3, the third traction ring 4 and the fourth traction ring 5 respectively.

[0058] In this embodiment, the intermediate connecting member 6 and the positioning ring 1 or the traction ring are fixed by bonding.

[0059] Preferably, the overall size of the intermediate connecting member 6 does not exceed 2 mm.

[0060] In this embodiment, the positioning ring 1 and the multiple traction rings are connected as one by providing an intermediate connector 6 with a hard structure. The provision of the intermediate connector 6 with a hard structure is conducive to maintaining the shape positioning between the positioning ring 1 and the multiple traction rings. When the traction device is sent into the gastric cavity through the endoscope channel or other auxiliary channels, the multiple traction rings can automatically unfold to a dispersed state, which is conducive to ensuring that the traction device as a whole maintains a certain shape, and can effectively prevent the traction device from being entangled or adhered inside the gastric cavity, making it convenient to freely select the traction ring for traction, thereby improving the convenience of use.

[0061] Example 3

[0062] A specific embodiment of the present invention is improved on the basis of embodiment 2:

[0063] In this embodiment, the traction ring and the intermediate connecting member 6 are connected via a ball joint.

[0064] Specifically, spherical grooves 66 are provided at the ends of the second connecting column 62, the third connecting column 63, the fourth connecting column 64 and the fifth connecting column 65 of the intermediate connecting member 6; Figure 5 、 Figure 6 shown.

[0065] For example, Figure 7 As shown, a spherical protrusion 21 is provided at one end of the first traction ring 2, and the spherical protrusion 21 can be stuck in the spherical groove 66, thereby realizing a spherical hinge connection between the first traction ring 2 and the second connecting column 62; similarly, the connection method of the second traction ring 3, the third traction ring 4, the fourth traction ring 5 and the intermediate connecting piece 6 is the same as the connection method of the first traction ring 2 and the intermediate connecting piece 6.

[0066] Specifically, the positioning ring 1 and the first connecting column 61 of the intermediate connecting member 6 are fixedly connected by bonding.

[0067] When in use, the first traction ring 2 / the second traction ring 3 / the third traction ring 4 / the fourth traction ring 5 can undergo deflection movements at multiple angles relative to the intermediate connecting piece 6, making it convenient to adjust the traction rings at multiple angles, and then to use metal clips (existing products) to clamp and fix them to the stomach tissue.

[0068] In this embodiment, the traction ring can not only undergo torsional motion by relying on its own elastic deformation, but can also achieve deflection motion relative to the intermediate connector 6 / positioning ring 1 through the ball hinge structure formed by the cooperation of the spherical protrusion 21 and the spherical groove 66, thereby facilitating real-time adjustment of the direction of the traction ring when traction is performed on the gastric tissue, so that the traction ring is subjected to as little torsional torque as possible, and the elastic deformation of the traction ring is mainly tensile deformation, which can effectively prevent the traction device from being affected by the torsional torque and detaching from the tissue epidermis in the traction state.

[0069] Example 4

[0070] A specific embodiment of the present invention is improved on the basis of embodiment 1, embodiment 2 or embodiment 3:

[0071] In this embodiment, the lengths of the first traction ring 2 , the second traction ring 3 , the third traction ring 4 , and the fourth traction ring 5 are different. At the same time, the colors of the first traction ring 2 , the second traction ring 3 , the third traction ring 4 , and the fourth traction ring 5 are different.

[0072] Preferably, if Figure 8As shown, the first traction ring 2 is red in appearance; the second traction ring 3 is yellow in appearance; the third traction ring 4 is green in appearance; and the fourth traction ring 5 is blue in appearance.

[0073] The traction device of this embodiment sets different colors for traction rings of different lengths, so that when the traction device is located inside a human organ, the doctor can quickly distinguish the length of the traction ring according to the color of the traction ring, which facilitates surgical operations, saves surgical time, reduces the labor intensity of medical staff and improves the surgical effect.

[0074] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the protection scope of the present invention.

Claims

1. A multi-directional endoscope-assisted traction device, characterized in that: include: A positioning ring (1) and a plurality of traction rings; The positioning ring (1) is provided with one, and the traction ring is provided with multiple; The positioning ring (1) and the traction ring are both elastic rings, and the positioning ring (1) and the plurality of traction rings are connected as one body; A plurality of traction rings are connected to the lower end of the positioning ring (1) and are arranged at intervals in the circumferential direction relative to the positioning ring (1); The lengths of the plurality of traction rings are different.

2. The multi-directional endoscope-assisted traction device according to claim 1, characterized in that: The number of the traction rings is four, namely a first traction ring (2), a second traction ring (3), a third traction ring (4) and a fourth traction ring (5); the first traction ring (2), the second traction ring (3), the third traction ring (4) and the fourth traction ring (5) are distributed at equal intervals along the circumferential direction of the positioning ring (1).

3. The multi-directional endoscope-assisted traction device according to claim 2, characterized in that: The first traction ring (2), the second traction ring (3), the third traction ring (4) and the fourth traction ring (5) are arranged at an obtuse angle to the positioning ring (1).

4. The multi-directional endoscope-assisted traction device according to any one of claims 1 to 3, characterized in that: The positioning ring (1) and the plurality of traction rings are fixed by bonding or integrally formed.

5. The multi-directional endoscope-assisted traction device according to claim 2 or 3, characterized in that: The positioning ring (1) and the plurality of traction rings are connected via an intermediate connecting piece (6) with a hard structure.

6. The multi-directional endoscope-assisted traction device according to claim 5, characterized in that: The intermediate connecting member (6) comprises: a first connecting column (61), a second connecting column (62), a third connecting column (63), a fourth connecting column (64) and a fifth connecting column (65); the second connecting column (62), the third connecting column (63), the fourth connecting column (64) and the fifth connecting column (65) are fixedly arranged at the lower end of the first connecting column (61) and are evenly distributed in an array in the circumferential direction of the first connecting column (61); the second connecting column (62), the third connecting column (63), the fourth connecting column (64) and the fifth connecting column (65) are all arranged at an obtuse angle to the first connecting column (61) and are fixed as a whole.

7. The multi-directional endoscope-assisted traction device according to claim 6, characterized in that: The positioning ring (1) and the first connecting column (61) of the intermediate connecting member (6) are fixedly connected by bonding.

8. The multi-directional endoscope-assisted traction device according to claim 7, characterized in that: The second connecting column (62), the third connecting column (63), the fourth connecting column (64) and the fifth connecting column (65) are respectively fixed to the first traction ring (2), the second traction ring (3), the third traction ring (4) and the fourth traction ring (5) by bonding.

9. The multi-directional endoscope-assisted traction device according to claim 7, characterized in that: The ends of the second connecting column (62), the third connecting column (63), the fourth connecting column (64) and the fifth connecting column (65) are all provided with spherical grooves (66); the ends of the four traction rings are all provided with spherical protrusions (21), and the spherical protrusions (21) can be stuck in the spherical grooves (66), so that the four traction rings are respectively connected to the second connecting column (62), the third connecting column (63), the fourth connecting column (64) and the fifth connecting column (65) to achieve spherical joint connection.

10. The multi-directional endoscope-assisted traction device according to claim 2, characterized in that: The first traction ring (2), the second traction ring (3), the third traction ring (4) and the fourth traction ring (5) are all of different colors.

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