Anorectal surgical dilation frame

Abstract

The utility model belongs to the technical field of medical apparatus and instruments, especially a kind of anorectal surgical operation dilating frame, to the process of existing use need to drive internal screw rod to drive the shell expansion outside, due to the setting of screw rod, make the internal space limited, it is inconvenient for the in-depth operation of surgical instrument;And after expansion, the tissue of anal inner wall is blocked by shell, influence the operation of the internal tissue of anus, present the following scheme, it includes mounting seat, the mounting seat is equipped with multiple expansion strips, multiple expansion strips are in pairs for a group, and carry out annular arrangement;Through the ingenious combination of annular arrangement expansion strip and elastic strip, the flexible reservation of operation space and the stable reset of expansion strip are realized, effectively improve surgical efficiency and safety, the innovative design of driving assembly makes the expansion process smooth controllable, the arc part design of expansion strip top end reduces tissue damage, and the anti-pinch space formed after retracting avoids accidental pinch injury.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a surgical dilation frame for anorectal surgery. Background Technology

[0002] Colorectal surgery is a clinical discipline that primarily treats tumors, injuries, and other diseases occurring in the anus and large intestine using surgery. Colorectal diseases most commonly occur in the anorectal segment. Surgical treatment of colorectal diseases often involves dilating the anus and rectum with dilators and performing surgery from the outside using surgical instruments. This provides ample exposure of the anal cavity and facilitates the surgical procedure for medical staff.

[0003] A search revealed that, for example, utility model CN217244557U discloses a surgical dilation frame for anorectal surgery. However, this dilation frame has the following drawbacks during use:

[0004] 1. During use, the internal screw needs to be driven to expand the outer shell. Due to the screw design, the internal space is limited, making it difficult to insert surgical instruments.

[0005] 2. Furthermore, after dilation, the tissues of the anal wall will be blocked by the outer shell, affecting the surgical operation of the internal anal tissues. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies, such as the need to drive an internal screw to expand the outer shell during use, which limits the internal space due to the screw and hinders the deep insertion of surgical instruments; and the fact that the anal wall tissue is blocked by the outer shell after expansion, affecting the surgical operation of the anal tissue. Therefore, this invention proposes a colorectal surgical dilation frame.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An anorectal surgical dilation frame includes a mounting base, wherein the mounting base is provided with a plurality of dilation strips, the plurality of dilation strips are arranged in pairs in a ring, and the plurality of dilation strips form an operating space between the plurality of groups of dilation strips;

[0009] The outer wall of the dilation bar is fixedly provided with the same elastic bar between the top of the mounting base, which is used to drive the dilation bar to move back to its original position and to prevent anal tissue from entering between the mounting base and the dilation bar;

[0010] The drive assembly, located on the outside of the mounting base, is used to drive multiple sets of expansion bars to expand outward simultaneously and to reserve operating space between the multiple expansion bars.

[0011] In one possible design, the drive assembly includes a threaded groove formed on the outer wall of the mounting base, a tapered sleeve threaded onto the threaded groove, a plurality of rectangular holes formed on the outer wall of the mounting base, a guide bar slidably disposed within the rectangular holes, one end of the guide bar being L-shaped and having an inclined surface that abuts against the tapered sleeve, and the other end of the guide bar being connected to a corresponding rectangular hole.

[0012] In one possible design, a common connecting block is fixed between each group of expansion bars, and the end of the guide bar away from the tapered sleeve is fixedly connected to the connecting block.

[0013] In one possible design, the top of the expansion bar has an arc-shaped portion.

[0014] In one possible design, an anti-pinch space is formed between two adjacent sets of expansion bars after retraction.

[0015] In one possible design, at least two second handles are fixedly provided at the bottom end of the mounting base, and multiple first handles are fixedly provided at the bottom end of the conical sleeve for driving the conical sleeve to rotate.

[0016] Beneficial effects:

[0017] In this utility model, the anorectal surgical dilatation frame is designed with multiple dilatation strips arranged in pairs in a ring, which can form an operating space between the multiple groups of dilatation strips, providing doctors with sufficient field of vision and operating range, making the surgical process more convenient and efficient. At the same time, an elastic strip is fixed between the outer wall of the dilatation strip and the top of the mounting base, which not only prevents anal tissue from entering the gap between the mounting base and the dilatation strip without dilation, causing unnecessary damage, but also provides a repositioning force for the dilatation strip to return to its original position using the elastic force of the elastic strip, ensuring the stability and reliability of the dilatation frame.

[0018] In this utility model, the anorectal surgical dilatation frame can achieve simultaneous outward expansion of multiple dilatation strips by rotating the conical sleeve. This not only simplifies the operation process and reduces the difficulty of the operation, but also improves the applicability and flexibility of the dilatation frame. At the same time, the design of the guide strip and connecting block makes the expansion process of the dilatation strip more stable and uniform, avoiding tissue damage caused by uneven expansion. In addition, the hollow interior provides doctors with a larger operating space.

[0019] In this invention, the ingenious combination of the annularly arranged expansion strips and elastic strips achieves flexible reservation of operating space and stable repositioning of the expansion strips, effectively improving surgical efficiency and safety. The innovative design of the drive component, especially the cooperation between the threaded groove and the conical sleeve, makes the expansion process smooth and controllable. At the same time, the setting of the guide strip and the connecting block further enhances the uniformity of expansion. The arc-shaped design at the top of the expansion strip reduces tissue damage, and the anti-pinch space formed after retraction avoids accidental pinching injury. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a surgical dilation frame for anorectal surgery proposed in this utility model;

[0021] Figure 2 This is a three-dimensional structural schematic diagram of a surgical dilation frame for anorectal surgery proposed in this utility model from another perspective;

[0022] Figure 3 This is an exploded structural diagram of a surgical dilation frame for anorectal surgery proposed in this utility model.

[0023] In the diagram: 1. Mounting base; 2. Expansion bar; 3. Connecting block; 4. Guide bar; 5. Threaded groove; 6. Tapered sleeve; 7. First handle; 8. Second handle; 9. Elastic bar; 10. Arc-shaped part; 11. Inclined surface; 12. Rectangular hole; 13. Anti-pinch space. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Reference Figures 1-3 An expansion frame includes: a mounting base 1, multiple expansion strips 2, elastic strips 9, and a drive assembly. The mounting base 1 serves as the basic support component of the entire expansion frame, and its interior is designed with multiple expansion strips 2. These expansion strips 2 are arranged in a ring in pairs, thereby creating an operating space between the multiple groups of expansion strips 2 for doctors to perform anorectal surgery operations. At the same time, the multiple groups of expansion strips 2 form a hollow shape, which facilitates the doctor's treatment of the tissues of the anal wall and effectively prevents the expansion strips 2 from obstructing the tissues being treated.

[0027] A single elastic strip 9 is fixedly installed between the outer wall of the dilator strip 2 and the top of the mounting base 1. The main function of the elastic strip 9 is to drive the dilator strip 2 to move back to its original position when the drive assembly is in repositioning mode, while preventing anal tissue from entering the gap between the mounting base 1 and the dilator strip 2 without dilation, thus avoiding unnecessary damage. At the same time, the elasticity of the elastic strip 9 also provides a repositioning force for the outward expansion of the dilator strip 2.

[0028] The drive assembly is designed to enable the simultaneous outward expansion of multiple sets of expansion bars 2. Specifically, the drive assembly includes a threaded groove 5 formed on the outer wall of the mounting base 1, and a tapered sleeve 6 threaded onto the threaded groove 5. The outer wall of the mounting base 1 also has multiple rectangular holes 12, each containing a guide bar 4. One end of the guide bar 4 is L-shaped and has an inclined surface 11 that abuts against the tapered sleeve 6. When the tapered sleeve 6 rotates on the threaded groove 5, its outer wall gradually abuts against and pushes the inclined surface 11 of the guide bar 4, causing the guide bar 4 to slide outward within the rectangular holes 12, thereby driving the multiple sets of expansion bars 2 to move outward.

[0029] To convert the sliding of the guide strip 4 into the outward expansion of the expansion strip 2, a connecting block 3 is fixedly provided between each group of expansion strips 2. The end of the guide strip 4 away from the conical sleeve 6 is fixedly connected to the corresponding connecting block 3. Therefore, when the guide strip 4 slides outward under the push of the conical sleeve 6, it will drive the connecting block 3 and the expansion strip 2 fixed to it to expand outward, thereby reserving the operating space between the multiple expansion strips 2 for the doctor to perform surgical operations.

[0030] This application can be used in the field of medical devices, or in other fields applicable to this application.

[0031] Example 2

[0032] refer to Figures 1-3 An improvement upon Example 1: A surgical dilatation frame for anorectal surgery, applied in the field of medical devices, features an arc-shaped portion 10 at the top of the dilatation bar 2. Through the combination of multiple sets of arc-shaped portions 10, it can form a spherical shape, allowing for smoother entry into the anal wall and reducing damage to anal tissues during dilation. Simultaneously, an anti-pinch space 13 is formed between adjacent sets of dilatation bars 2 after retraction, preventing pinching injury to the anal tissue due to elastic rebound during the repositioning process of the dilatation bar 2.

[0033] To facilitate operation by doctors, at least two second handles 8 are fixedly provided at the bottom of the mounting base 1, making it easy for doctors to hold and stabilize the expansion frame. The bottom of the conical sleeve 6 is fixedly provided with multiple first handles 7. Doctors can rotate the first handles 7 to drive the conical sleeve 6 to rotate on the threaded groove 5, thereby realizing the outward expansion and repositioning of the expansion bar 2. All components are made of 304 stainless steel.

[0034] In this application, during use, the outer wall of the dilator 2 is first disinfected and an appropriate amount of lubricant is applied. Then, it is inserted into the patient's anus until the elastic strip 9 contacts the anus. Then, the second handle 8 is held and the first handle 7 is moved by the fingers. The movement of the first handle 7 can drive the conical sleeve 6 to rotate. During the rotation of the conical sleeve 6, it can move upward on the mounting base 1. During the movement, the conical surface and the inclined surface 11 on the inner side of the guide strip 4 can drive the guide strip 4 to move outward. The movement of the guide strip 4 can drive the connecting block 3 to move. The movement of the connecting block 3 can drive the dilator 2 to move outward. During the outward expansion of the dilator 2, the elastic strip 9 can be deformed, which can block the skin tissue close to the mounting base 1 outward. This can effectively prevent the dilator 2 from being clamped by the skin tissue when it approaches the mounting base 1, thereby dilating the anus.

[0035] Because multiple dilation strips 2 form a hollow shape, the tissues of the anal wall can be exposed, allowing for treatment of the tissues inside the anus, such as hemorrhoids. At the same time, the colonoscope can be smoothly passed through the anus and entered the intestines.

[0036] After use, reverse the first handle 7 to move the conical sleeve 6 downward on the mounting base 1. At this time, the dilator 2 can be squeezed inward under the force of the elastic strip 9 until it is fully reset. After the dilator 2 is fully reset, an anti-pinch space 13 is formed between the multiple dilator 2, which can avoid pinching the tissue inside the anus. Finally, the dilator 2 is pulled out from the anus.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A surgical dilation frame for anorectal surgery, characterized in that, Includes a mounting base (1), wherein the mounting base (1) is provided with a plurality of expansion strips (2), the plurality of expansion strips (2) are arranged in pairs and in a ring, and the plurality of expansion strips (2) form an operating space between the plurality of groups of expansion strips (2); The same elastic strip (9) is fixed between the outer wall of the dilation strip (2) and the top of the mounting base (1) to drive the dilation strip (2) to reset and move, and to prevent anal tissue from entering between the mounting base (1) and the dilation strip (2); The drive assembly is located on the outside of the mounting base (1) and is used to drive multiple sets of expansion bars (2) to expand outward simultaneously and to reserve the operating space between the multiple expansion bars (2).

2. The anorectal surgical dilation frame according to claim 1, characterized in that, The drive assembly includes a threaded groove (5) on the outer wall of the mounting base (1), a tapered sleeve (6) is threaded onto the threaded groove (5), and a plurality of rectangular holes (12) are provided on the outer wall of the mounting base (1). A guide strip (4) is slidably provided in the rectangular hole (12). One end of the guide strip (4) is L-shaped and has an inclined surface (11) that abuts against the tapered sleeve (6). The other end of the guide strip (4) is connected to the corresponding rectangular hole (12).

3. The anorectal surgical dilation frame according to claim 2, characterized in that, Each set of expansion strips (2) is fixedly provided with the same connecting block (3), and the end of the guide strip (4) away from the conical sleeve (6) is fixedly connected to the connecting block (3).

4. The anorectal surgical dilation frame according to claim 1, characterized in that, The top end of the expansion bar (2) is provided with an arc-shaped part (10).

5. A surgical dilatation frame for anorectal surgery according to claim 4, characterized in that, After retraction, an anti-pinch space (13) is formed between the two adjacent sets of expansion strips (2).

6. The anorectal surgical dilation frame according to claim 2, characterized in that, At least two second handles (8) are fixedly provided at the bottom end of the mounting base (1), and multiple first handles (7) are fixedly provided at the bottom end of the conical sleeve (6) for driving the conical sleeve (6) to rotate.

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