Adjustable anal dilatation device

Abstract

The invention belongs to the technical field of gastrointestinal surgery medical instruments, and discloses an adjustable anal dilatation device which comprises a handheld handle, a hollow column is fixedly mounted at the bottom of the handheld handle, a rotating disc is rotatably mounted at the bottom of the hollow column, a limiting plate is rotatably mounted at the bottom of the rotating disc, and a curved ring block is fixedly mounted at the bottom of the limiting plate. A plurality of expansion blocks are arranged at the top of the rotating disc, and by arranging an adjusting structure, adjustment of anal dilatation is achieved. Through a power assembly and an adjusting assembly in the adjusting mechanism, a doctor can easily control movement of a rotating disc, a T-shaped column, a Z-shaped block and an expansion block, so that the angle and the position of anal dilation are adjusted, the stability and the accuracy of movement are ensured, the flexibility and the success rate of an operation are improved, and the operation efficiency is improved. Through cooperation of a spring bolt and a positioning groove, the second gear can be locked at a specific position after a doctor stops rotating the second gear, and therefore the expanding effect of the expanding block is kept.

Description

Technical Field

[0001] The present invention belongs to the technical field of gastrointestinal surgical medical devices, and specifically relates to an adjustable anal dilator device. Background Art

[0002] The existing anoscope is a precision medical device widely used in anorectal surgery. Its original design intention is to significantly improve the doctor's observation and operation efficiency of the lesions inside the anus and rectum during the operation, enabling the doctor to more accurately identify, evaluate, and handle various pathological conditions in the anorectal region, including but not limited to hemorrhoids, polyps, inflammation, and early cancers. With the assistance of the anoscope, the doctor can perform more delicate surgical operations while reducing the patient's trauma, thereby accelerating the recovery process, reducing the risk of complications, and improving the overall treatment effect.

[0003] In anorectal surgery, the obstruction of the hemorrhoid nucleus and the fixed size limitation of the anoscope become key factors affecting the surgical effect. When the anoscope is inserted into the anus, although a part of it can be withdrawn to expose some internal tissues, the near-anus part is often blocked by the hemorrhoid nucleus, which not only affects the clarity of the surgical field of view but also may interfere with the operation of surgical instruments, making the surgical process complex and difficult. At the same time, due to the differences in the size and shape of patients' anuses, the anoscope with a fixed size often cannot perfectly meet the needs of each patient, resulting in limited field of view, inconvenient operation, and even an increase in the surgical risk. In addition, due to the fixed design of the anoscope and the obstruction of the hemorrhoid nucleus, doctors often cannot obtain sufficient exposure during the operation, which not only affects the accuracy of the operation but also may prolong the operation time, increase the patient's pain and postoperative recovery time. Therefore, it is necessary to improve and optimize it. Summary of the Invention

[0004] To solve the problems in the above background art that in anorectal surgery, the obstruction of the hemorrhoid nucleus and the fixed size limitation of the anoscope lead to limited surgical field of view, difficult operation, affecting the accuracy of the operation and increasing the patient's pain and postoperative recovery time, the present invention provides an adjustable anal dilator device.

[0005] To achieve the above object, the present invention provides the following technical solution: An adjustable anal dilator device includes a hand-held handle. A hollow column is fixedly installed at the bottom of the hand-held handle. A turntable is rotatably installed at the bottom of the hollow column. A limiting plate is rotatably installed at the bottom of the turntable. A curved ring block is fixedly installed at the bottom of the limiting plate. The curved ring block is in a semi-spherical arc shape. A number of expansion blocks are arranged at the top of the turntable. An adjustment mechanism is arranged inside the hand-held handle. A number of installation mechanisms are arranged inside the expansion blocks; The installation mechanism includes a sliding groove opened at the top of the extension block. A pressing column is slidably installed on the inner wall of the sliding groove. A hollow ring is fixedly installed at the bottom of the extension block. The bottom end of the pressing column extends into the hollow ring and is slidably connected to the hollow ring. A plurality of rectangular grooves are opened on the outer wall of the hollow ring, and L-shaped rods are respectively hingedly installed on the inner walls of the plurality of rectangular grooves.

[0006] Preferably, an annular groove is opened on the bottom outer wall of the pressing column, and one ends of the plurality of L-shaped rods extend into the annular groove and are in contact with the inner wall of the annular groove.

[0007] Preferably, the bottom of the pressing column and the inner bottom wall of the hollow ring are elastically connected by a spring telescopic rod assembly, and the spring telescopic rod assembly is located at the center of the bottom of the pressing column.

[0008] Preferably, the column rod of the pressing column is composed of a cylinder plus a rectangular block, and a circular center pressing plate is arranged at the top of the pressing column. The pressing column is adapted to the sliding groove.

[0009] Preferably, the adjusting mechanism includes a power component and an adjusting component. The power component includes an installation groove opened inside the hand-held handle. A rotating rod is rotatably installed inside the hollow column. The top of the rotating rod extends into the installation groove and is rotatably connected to the installation groove. A first gear is fixedly sleeved on the outer wall of the top of the rotating rod. The bottom of the rotating rod is fixedly connected to the turntable.

[0010] Preferably, a second gear is rotatably installed on the inner wall of the hand-held handle. Half of the second gear is located inside the installation groove and meshes with the first gear, and the other half of the second gear is located outside the hand-held handle.

[0011] Preferably, a plurality of positioning grooves are opened at the top of the second gear, and the plurality of positioning grooves are distributed in a circumferential array.

[0012] Preferably, a spring bolt is fixedly installed on the outer wall of the hand-held handle close to the second gear, and the bottom end of the spring bolt is adapted to the corresponding positioning groove.

[0013] Preferably, the adjusting component includes a plurality of extension grooves opened on the outer wall of the turntable. The plurality of extension grooves are designed in a curve. A plurality of limiting grooves are opened at the top of the limiting plate. T-shaped columns are slidably installed on the inner walls of the corresponding two extension grooves and limiting grooves. A Z-shaped block is fixedly installed at the top of the T-shaped column. A fixing groove is opened at the top of the Z-shaped block. The diameter value of the fixing groove near the port is smaller than the diameter value of the bottom notch.

[0014] Preferably, the hollow ring is snap-fitted with the fixing groove. Two inclined columns are fixedly installed at the top of the Z-shaped block. A triangular block is fixedly installed on the outer wall of the expansion block. The triangular block is located between the two inclined columns and is slidably connected to the two inclined columns.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: By setting the adjustment structure, the present invention realizes the adjustment of anal dilation. Through the power component and the adjustment component in the adjustment mechanism, doctors can easily control the movement of the turntable, the T-shaped column, the Z-shaped block and the expansion block, so as to realize the adjustment of the anal dilation angle and position. This not only ensures the smoothness and accuracy of the movement, but also improves the flexibility and success rate of the operation. Through the cooperation of the spring bolt and the positioning groove, after the doctor stops rotating the second gear, the second gear can be locked in a specific position, so as to maintain the expanding effect of the expansion block and ensure the stability and safety of the operation.

[0016] By setting the installation mechanism, the present invention utilizes the synergistic effect of components such as the pressing column, the spring telescopic rod assembly and the L-shaped rod, enabling doctors to easily remove and install the expansion block during the operation. Doctors only need to perform simple pressing and releasing actions to control the expansion or retraction state of the L-shaped rod, thereby quickly adjusting the position and quantity of the expansion block, greatly improving the flexibility and efficiency of the operation, and enabling doctors to more quickly adapt to various changes during the operation. Since the installation mechanism allows doctors to quickly adjust the position and quantity of the expansion block, doctors can precisely control the degree and range of anal dilation according to the surgical needs. During the operation, doctors can ensure that the lesion area is completely exposed without any obstacles, providing a better surgical field of view and operating space for doctors, making the operation process smoother and safer. At the same time, it also reduces the operation time and the patient's pain. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic structural diagram of the power component of the present invention; Figure 3 is a schematic front sectional structural diagram of the present invention; Figure 4 is an exploded structural diagram of the hollow column, the turntable and the limit plate of the present invention; Figure 5 is a schematic structural diagram of the cooperation between the expansion block and the Z-shaped block of the present invention; Figure 6 is a schematic front sectional structural diagram of the turntable of the present invention; Figure 7 is a schematic structural diagram of the expansion block and the Z-shaped block being engaged together of the present invention; Figure 8Schematic diagram of the separation structure of the expansion block and the Z-shaped block of the present invention; Figure 9 Schematic diagram of the front cross-sectional structure of the expansion block of the present invention; Figure 10 Schematic diagram of the front cross-sectional structure of the Z-shaped block of the present invention; Figure 11 Schematic diagram of the combined structure of the hollow ring and the L-shaped rod of the present invention; Figure 12 Schematic diagram of the front cross-sectional structure of the hollow ring of the present invention.

[0018] In the figure: 1. Handheld handle; 101. Installation groove; 2. Hollow column; 201. Rotating rod; 202. First gear; 3. Second gear; 301. Positioning groove; 4. Spring bolt; 5. Turntable; 501. Expansion groove; 6. Limit plate; 601. Limit groove; 602. Curved ring block; 603. T-shaped column; 7. Z-shaped block; 701. Oblique column; 702. Fixed groove; 8. Expansion block; 801. Triangular block; 802. Sliding groove; 9. Pressing column; 901. Annular groove; 10. Hollow ring; 1001. Rectangular groove; 11. Spring telescopic rod assembly; 12. L-shaped rod. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] As Figures 1 to 12 shown, the present invention provides an adjustable anal dilator, which includes a handheld handle 1. A hollow column 2 is fixedly installed at the bottom of the handheld handle 1. A turntable 5 is rotatably installed at the bottom of the hollow column 2. A limit plate 6 is rotatably installed at the bottom of the turntable 5. A curved ring block 602 is fixedly installed at the bottom of the limit plate 6. The curved ring block 602 is in a semi-spherical arc shape. A plurality of expansion blocks 8 are arranged at the top of the turntable 5. An adjustment mechanism is arranged inside the handheld handle 1, and a plurality of installation mechanisms are arranged inside the expansion blocks 8; The installation mechanism includes a sliding groove 802 opened at the top of the expansion block 8. A pressing column 9 is slidably installed on the inner wall of the sliding groove 802. A hollow ring 10 is fixedly installed at the bottom of the expansion block 8. The bottom end of the pressing column 9 extends into the hollow ring 10 and is slidably connected with the hollow ring 10. A plurality of rectangular grooves 1001 are opened on the outer wall of the hollow ring 10. L-shaped rods 12 are respectively hinged and installed on the inner walls of the plurality of rectangular grooves 1001.

[0021] The above scheme is adopted: by setting a hand-held handle 1, it is convenient for the doctor to hold and operate, the hollow column 2 is fixedly installed at the bottom of the hand-held handle 1, serving as the installation basis of the turntable 5 and other components, the turntable 5 is rotatably installed at the bottom of the hollow column 2, and is used to adjust the deployment angle or position of the expansion block 8, the limit plate 6 is rotatably installed at the bottom of the turntable 5, and is used to expand the movement range of the block 8 and provide additional stability, the curved ring block 602 is fixedly installed at the bottom of the limit plate 6 and is in a semi-spherical arc shape, and is used to contact the external tissue of the patient's anus, so as to facilitate the device to enter the patient's anus to achieve a preliminary expansion effect.

[0022] The adjustment mechanism is arranged inside the handheld handle 1, and may be used to control the rotation of the turntable 5, thereby adjusting the expansion state of the expansion block 8. The doctor can control the rotation of the turntable 5 by holding the handheld handle 1 and operating the adjustment mechanism, thereby adjusting the expansion angle and position of the expansion block 8.

[0023] By pressing or releasing the pressing column 9, the expansion or retraction state of the L-shaped rod 12 can be controlled, so that the expansion block 8 can be removed according to surgical needs. The device can perform precise and adjustable expansion to meet surgical needs.

[0024] like Figures 11 to 12 As shown, an annular groove 901 is provided on the bottom outer wall of the pressing column 9, one end of a plurality of L-shaped rods 12 extends into the annular groove 901 and contacts the inner wall of the annular groove 901, the bottom of the pressing column 9 and the bottom inner wall of the hollow ring 10 are elastically connected through a spring telescopic rod assembly 11, and the spring telescopic rod assembly 11 is located at the bottom center of the pressing column 9, the column rod of the pressing column 9 is composed of a cylinder and a rectangular block, and a center pressing plate is provided on the top of the pressing column 9, and the pressing column 9 is adapted to the sliding groove 802.

[0025] The above scheme is adopted: an annular groove 901 is opened on the outer wall of the bottom of the pressing column 9, and the annular groove 901 is used to cooperate with the L-shaped rod 12; one end of a plurality of L-shaped rods 12 extends into the annular groove 901 and contacts the inner wall of the annular groove 901, and the L-shaped rods 12 are driven to rotate along the hinge axis through the pressing movement, so that when fixing is required, the plurality of L-shaped rods 12 are in an open state, and when removal is required, the plurality of L-shaped rods 12 are rotated into the rectangular groove 1001; The bottom of the pressing column 9 is elastically connected to the bottom inner wall of the hollow ring 10 through a spring telescopic rod assembly 11, so that the pressing column 9 can move up and down relative to the hollow ring 10 when force is applied. When the pressing column 9 is not under force, the spring telescopic rod assembly 11 rebounds and resets it. The column rod of the pressing column 9 is composed of a cylinder and a rectangular block, so that when the pressing column 9 slides in the sliding groove 802, its position is limited to keep the moving route stable. By providing a center pressing plate at the top of the pressing column 9, the contact area of ​​the top of the pressing column 9 is increased, which is convenient for medical staff to operate.

[0026] like Figures 1 to 6 As shown, the adjustment mechanism includes a power component and an adjustment component. The power component includes a mounting groove 101 opened inside the hand-held handle 1, and a rotating rod 201 is rotatably installed inside the hollow column 2. The top of the rotating rod 201 extends into the mounting groove 101 and is rotatably connected to the mounting groove 101. A gear 202 is fixedly sleeved on the top outer wall of the rotating rod 201, and the bottom of the rotating rod 201 is fixedly connected to the turntable 5.

[0027] The above solution is adopted: by setting a power component, the bottom of the rotating rod 201 is fixedly connected to the rotating disk 5. When the rotating rod 201 rotates, the rotating disk 5 will also rotate accordingly, thereby driving the expansion block 8 to move together through the rotating disk 5, thereby realizing the expansion or contraction of the anus.

[0028] like Figures 1 to 2 As shown, a gear 2 3 is rotatably mounted on the inner wall of the hand-held handle 1, half of the gear 2 3 is located in the mounting groove 101 and meshes with the gear 1 202, and the other half of the gear 2 3 is located on the outside of the hand-held handle 1, and a plurality of positioning grooves 301 are provided on the top of the gear 2 3, and the plurality of positioning grooves 301 are distributed in a circular array, and a spring latch 4 is fixedly mounted on the outer wall of the hand-held handle 1 close to the gear 2 3, and the bottom end of the spring latch 4 is adapted to the corresponding positioning groove 301.

[0029] The above scheme is adopted: gear 203 is rotatably installed on the inner wall of the hand-held handle 1, so that gear 203 can rotate freely in the hand-held handle 1, and is meshed with gear 1 202. When gear 203 rotates, it will drive gear 1 202 to rotate together. A plurality of positioning grooves 301 are opened on the top of gear 203, and these grooves are distributed in a circular array, so that when gear 203 rotates to a specific position, the spring pin 4 can bounce into the corresponding positioning groove 301, thereby locking gear 203 in this position.

[0030] like Figures 7 to 12As shown in the figure, the adjustable component includes a plurality of expansion slots 501 formed on the outer wall of the turntable 5. The plurality of expansion slots 501 are designed in a curve. A plurality of limiting slots 601 are formed on the top of the limiting plate 6. T-shaped columns 603 are slidably installed on the inner walls of the corresponding two expansion slots 501 and limiting slots 601. A Z-shaped block 7 is fixedly installed on the top of the T-shaped column 603. A fixing slot 702 is formed on the top of the Z-shaped block 7. The diameter value of the fixing slot 702 near the port is smaller than the diameter value of the bottom slot opening. The hollow ring 10 is clamped with the fixing slot 702. Two inclined columns 701 are fixedly installed on the top of the Z-shaped block 7. A triangular block 801 is fixedly installed on the outer wall of the expansion block 8. The triangular block 801 is located between the two inclined columns 701 and is slidably connected to the two inclined columns 701.

[0031] Adopting the above scheme: By designing a plurality of curved expansion slots 501 on the outer wall of the turntable 5, it forms a sliding track for the T-shaped column 603 together with the limiting slots 601 on the limiting plate 6. When the turntable 5 is driven to rotate, the curved shape of the expansion slot 501 will guide the T-shaped column 603 to slide in the slot and be converted into a linear outward expansion or inward contraction movement of the T-shaped column 603. A Z-shaped block 7 is fixedly installed on the top of the T-shaped column 603. Therefore, the linear movement of the T-shaped column 603 will directly drive the Z-shaped block 7 and the expansion block 8 connected thereto to move together, so as to realize the expansion or contraction of the anus. A fixing slot 702 is designed on the top of the Z-shaped block 7. The shape of the fixing slot 702 is special. The diameter value near the port is smaller than the diameter value of the bottom slot opening, so that the hollow ring 10 can be easily clamped into the fixing slot 702 and achieve a stable connection through shape locking. Two inclined columns 701 are also fixedly installed on the top of the Z-shaped block 7. The sliding connection between the two inclined columns 701 and the triangular block 801 on the outer wall of the expansion block 8 can limit it.

[0032] By setting the adjustable component, the expansion and contraction of the anus can be realized, which provides great convenience for medical staff. The coordinated action of the expansion slot 501 and the T-shaped column 603 ensures the smoothness and accuracy of the movement, and avoids the discomfort or injury caused to the patient due to unstable movement. The connection and adjustment method of the Z-shaped block 7 and the expansion block 8 are simple and reliable, and can be flexibly adjusted according to the surgical needs, improving the flexibility and success rate of the surgery.

[0033] The working principle and usage process of the present invention: In the initial state, multiple expansion blocks 8 are all clamped with the Z-shaped block 7 to form a whole; When used by medical staff, hold the handheld handle 1 to keep the operation stable, align the curved ring block 602 with the patient's anus and insert it, so that the expansion block 8 also enters the anus. The process needs to be slow and steady to reduce the discomfort of the patient; When the anus needs to be dilated, medical staff can turn gear two 3, causing gear two 3 to rotate. Through the meshing of gear two 3 with gear one 202, gear one 202 is driven to rotate. Gear one 202 drives the rotating rod 201 to rotate, and the rotating rod 201 drives the turntable 5 to rotate. Since the outer wall of the turntable 5 is provided with an expansion slot 501 and the expansion slot 501 is designed in a curve, the rotation of the turntable 5 can be converted into a linear outward expansion movement of the T-shaped column 603. The limiting slot 601 defined in the limiting plate 6 in a fixed ratio can further limit the movement route of the T-shaped column 603. The T-shaped column 603 drives the Z-shaped block 7 and the expansion block 8 to move together, so that multiple expansion blocks 8 all expand outward to dilate the anus; When it is expanded to an appropriate angle, stop rotating gear two 3. Since the spring bolt 4 is fixedly installed on the outer wall of the hand-held handle 1, the bottom end of the spring bolt 4 directly engages with the positioning groove 301 at the top of gear two 3 after stopping rotation, thereby limiting gear two 3 to prevent it from rotating and maintaining the dilating effect of the expansion block 8; When performing an operation on the inner wall of the patient's anus or inside the anus, one or more expansion blocks 8 may block the affected area and affect the operation. At this time, the medical staff can hold the expansion block 8 that needs to be removed and press the pressing column 9 forcefully with the thumb, so that the pressing column 9 slides inside the sliding slot 802, causing the pressing column 9 to squeeze the spring telescopic rod assembly 11. Through the design of the annular groove 901, when the pressing column 9 moves, multiple L-shaped rods 12 rotate, and finally multiple L-shaped rods 12 are inserted into the corresponding rectangular slots 1001, thereby releasing the connection of the L-shaped rods 12 to the Z-shaped block 7. At this time, the medical staff can pull out the expansion block 8 to perform the operation. When it needs to be reinstalled, press the pressing column 9 in the same way, so that the hollow ring 10 is inserted into the fixing groove 702 at the top of the Z-shaped block 7, and then release the pressing column 9, so that multiple L-shaped rods 12 open outward to fix the hollow ring 10 and the Z-shaped block 7.

[0034] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable anal dilation device, comprising a handheld handle (1), characterized in that: A hollow column (2) is fixedly mounted on the bottom of the hand-held handle (1), a turntable (5) is rotatably mounted on the bottom of the hollow column (2), a limit plate (6) is rotatably mounted on the bottom of the turntable (5), a curved ring block (602) is fixedly mounted on the bottom of the limit plate (6), the curved ring block (602) is in the shape of a semi-spherical arc, a plurality of expansion blocks (8) are arranged on the top of the turntable (5), an adjustment mechanism is arranged inside the hand-held handle (1), and a plurality of installation mechanisms are arranged inside the expansion block (8); The mounting mechanism comprises a sliding groove (802) formed on the top of the expansion block (8), a pressing column (9) being slidably mounted on the inner wall of the sliding groove (802), a hollow ring (10) being fixedly mounted on the bottom of the expansion block (8), the bottom end of the pressing column (9) extending into the hollow ring (10) and being slidably connected to the hollow ring (10), a plurality of rectangular grooves (1001) being formed on the outer wall of the hollow ring (10), and L-shaped rods (12) being hingedly mounted on the inner walls of the plurality of rectangular grooves (1001).

2. The adjustable anal dilation device according to claim 1, characterized in that: An annular groove (901) is provided on the outer wall of the bottom of the pressing column (9), and one end of a plurality of L-shaped rods (12) extends into the annular groove (901) and contacts the inner wall of the annular groove (901).

3. The adjustable anal dilation device according to claim 1, characterized in that: The bottom of the pressing column (9) and the bottom inner wall of the hollow ring (10) are elastically connected via a spring telescopic rod assembly (11), and the spring telescopic rod assembly (11) is located at the bottom center of the pressing column (9).

4. The adjustable anal dilation device according to claim 1, characterized in that: The column rod of the pressing column (9) is composed of a cylinder and a rectangular block, and a center pressing plate is provided on the top of the pressing column (9). The pressing column (9) is compatible with the sliding groove (802).

5. The adjustable anal dilation device according to claim 1, characterized in that: The adjustment mechanism comprises a power assembly and an adjustment assembly, wherein the power assembly comprises a mounting groove (101) provided inside the hand-held handle (1), a rotating rod (201) is rotatably mounted inside the hollow column (2), the top of the rotating rod (201) extends into the mounting groove (101) and is rotatably connected to the mounting groove (101), a gear 1 (202) is fixedly sleeved on the top outer wall of the rotating rod (201), and the bottom of the rotating rod (201) is fixedly connected to the rotating disk (5).

6. The adjustable anal dilation device according to claim 5, characterized in that: A second gear (3) is rotatably mounted on the inner wall of the hand-held handle (1); half of the second gear (3) is located in the mounting groove (101) and meshes with the first gear (202); the other half of the second gear (3) is located outside the hand-held handle (1).

7. The adjustable anal dilation device according to claim 6, characterized in that: A plurality of positioning grooves (301) are provided on the top of the gear 2 (3), and the plurality of positioning grooves (301) are distributed in a circular array.

8. The adjustable anal dilation device according to claim 7, characterized in that: A spring latch (4) is fixedly mounted on the outer wall of the handle (1) on one side close to the second gear (3), and the bottom end of the spring latch (4) is matched with the corresponding positioning groove (301).

9. The adjustable anal dilation device according to claim 5, characterized in that: The adjustment component comprises a plurality of expansion slots (501) formed on the outer wall of the rotating disk (5), wherein the plurality of expansion slots (501) are designed to be curved, a plurality of limiting slots (601) are formed on the top of the limiting plate (6), a T-shaped column (603) is slidably mounted on the inner walls of the two corresponding expansion slots (501) and the limiting slot (601), a Z-shaped block (7) is fixedly mounted on the top of the T-shaped column (603), a fixing slot (702) is formed on the top of the Z-shaped block (7), and a diameter value of the fixing slot (702) near the port is smaller than a diameter value of the bottom slot.

10. The adjustable anal dilation device according to claim 9, characterized in that: The hollow ring (10) is snap-fitted with the fixing groove (702); two inclined columns (701) are fixedly mounted on the top of the Z-shaped block (7); a triangular block (801) is fixedly mounted on the outer wall of the expansion block (8); the triangular block (801) is located between the two inclined columns (701) and is slidably connected to the two inclined columns (701).

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