Auxiliary anal dilatation device for medical nursing

Abstract

The invention relates to a medical nursing auxiliary anal dilatation device which comprises an insertion rod used for being inserted into the anus of a patient, a supporting part is arranged on the insertion rod, the insertion rod is hollow, a sliding part is slidably connected into the insertion rod, the insertion rod internally comprises a first cavity and a second cavity which are located on the two sides of the sliding part, a liquid inlet and a liquid outlet are formed in one end of the insertion rod, and an insertion head is arranged at the other end of the insertion rod. The outer wall of the plug is provided with an output port communicated with the interior of the plug, and the two ends of the connecting pipe are communicated with the interior of the plug and the liquid outlet respectively. The insertion rod is inserted into the anus of a patient, and meanwhile in the continuous insertion process, the movable part synchronously and reversely moves in the inner cavity of the insertion rod, the lubricating liquid in the second cavity is output into the anus of the patient through the liquid outlet, the connecting pipe and the output port, and in the insertion process of the insertion rod, the outer wall of the insertion rod and the supporting part on the outer wall are driven to rotate under the action of the lubricating liquid. The friction between the anal catheter and the interior of the anus of a patient can be reduced, and the injury to the patient can be reduced while smooth insertion is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary devices, and in particular to a medical nursing auxiliary anal dilator. Background Art

[0002] Anal dilation, also known as anal canal dilation, refers to the expansion of the anal sphincter and rectal spasm segment through fingers or instruments, and is often used in the examination and treatment of anorectal diseases.

[0003] During the common anal dilator process, the operator will select a suitable anal dilator and apply lubricating oil on the dilator to reduce irritation to the anus and facilitate the insertion of the dilator into the anus. The operator will then slowly insert the dilator into the patient's anus. When it is inserted to a certain depth, it will be rotated appropriately to expand the anus.

[0004] However, when the anal dilator is inserted into the patient's anus, the anus is in a closed state and is stretched open by the anal dilator, causing the inner wall of the anus to fit against the outer wall of the anal dilator. As the anus is inserted, most of the lubricating oil applied on the anal dilator is easily blocked outside the anus, causing the anal dilator to be poorly affected by the lubricating oil, increasing the resistance to continued insertion, and easily causing damage to the patient's anus. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a medical care auxiliary anal dilator to solve the problem that when the existing anal dilator is inserted into the patient's anus, the lubricant applied on the surface of the anal dilator is easily blocked outside the anus by the anus, and as the anal dilator continues to be inserted, the resistance encountered by the anal dilator increases, which is easy to cause damage to the patient's anus.

[0006] The present invention is achieved through the following technical solutions:

[0007] A medical care auxiliary anal dilator comprises an insertion rod for inserting into a patient's anus, the insertion rod being provided with a support portion capable of dilating the patient's anus, the insertion rod being hollow and slidably connected with a sliding portion inside the insertion rod, the side surface of the sliding portion being sealed and connected to the inside of the insertion rod, the inside of the insertion rod comprising a first chamber and a second chamber located on both sides of the sliding portion, the outer wall of one end of the insertion rod being provided with a liquid inlet and a liquid outlet communicating with the second chamber, and the other end being provided with a plug, the plug being hollow and the outer wall being provided with an output port communicating with the inside thereof, a connecting pipe being provided between the plug and the liquid outlet, the two ends of the connecting pipe being respectively communicated with the inside of the plug and the liquid outlet.

[0008] It is further defined that the sliding portion includes a movable plate, a sealing ring and a connecting rod which are slidably connected to the insertion rod, the movable plate is located between the first chamber and the second chamber, the sealing ring is sleeved on the arc surface of the movable plate, and the outer wall of the sealing ring is abutted against the inner wall of the insertion rod, the connecting rod is connected to a surface of the movable plate close to the second chamber, and an end of the connecting rod away from the movable rod passes through an end of the insertion rod away from the plug.

[0009] It is further defined that one end of the connecting rod away from the movable plate is connected to a connecting seat, and the connecting seat is connected to a fixing portion for fixing the entire device.

[0010] It is further defined that the fixing portion includes a base and a backing plate, the connecting seat is connected to one end of the backing plate, a support column is arranged between the bottom surface of the backing plate and the top surface of the base, and the upper and lower ends of the support column are respectively connected to the backing plate and the base.

[0011] It is further defined that the support column includes a fixed column and a telescopic column, both lower ends of which are fixedly connected to the base, the upper end of the fixed column is hinged to an end of the back plate away from the connecting seat, and the upper end of the telescopic column is hinged to an end of the back plate close to the connecting seat.

[0012] It is further defined that the support portion includes a plurality of expansion pieces and an adjustment component for adjusting the expansion range of the expansion pieces, the plurality of expansion pieces are evenly distributed in a ring shape with the insertion rod as the axis, and one end of the expansion piece is hinged to the plug.

[0013] It is further defined that the adjustment assembly includes a sliding ring slidably connected to the insertion rod and a locking member fixing the sliding ring, the sliding ring is located between the insertion rod and the expansion piece, and the sliding ring is sleeved on the insertion rod;

[0014] A sliding groove is provided on one side of the expansion piece close to the sliding ring, the horizontal position of the sliding groove at one end close to the plug is higher than that of the end away from the plug, and the sliding groove is an inclined surface facing the sliding ring.

[0015] It is further defined that the locking member includes a transmission rod, a ratchet and a clamping block, the ratchet and the clamping block are both rotatably connected to the connecting seat, the clamping block is connected to the connecting seat through a torsion spring, the clamping block is located on one side of the ratchet, and one end of the clamping block is plugged into one side of the ratchet;

[0016] One end of the transmission rod is coaxial with the ratchet and threadedly connected, and the other end is connected to the sliding ring.

[0017] It is further defined that a heating wire is provided in the expansion piece, and a power supply unit electrically connected to the heating wire is provided in the plug.

[0018] It is further defined that two sides of the backrest are relatively bent into an arc shape, and a flexible pad is provided on the top surface of the backrest.

[0019] The beneficial effects of the present invention are:

[0020] The insertion rod is inserted into the patient's anus. During the continuous insertion process, the movable part moves in the opposite direction synchronously with the inner cavity of the insertion rod, and the lubricating liquid in the second chamber is output to the patient's anus through the liquid outlet, the connecting tube and the output port. During the insertion process of the insertion rod, the outer wall of the insertion rod and the supporting part on the outer wall can reduce the friction between the inner part of the patient's anus through the effect of the lubricating liquid, so that the insertion can be smooth while reducing the harm to the patient.

[0021] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the overall structure of the plug rod of the present invention;

[0024] Figure 3 It is a schematic diagram of the internal structure of the plug rod of the present invention;

[0025] Figure 4 is a cross-sectional view of the expansion sheet of the present invention;

[0026] Figure 5 It is a schematic structural diagram of the locking member of the present invention.

[0027] In the figure:

[0028] 1. Insertion rod; 101. Liquid inlet; 102. Liquid outlet; 103. Plug; 1031. Output port; 2. Connecting pipe; 3. Movable plate; 301. Connecting rod; 4. Connecting seat; 401. Base; 402. Back plate; 5. Expansion sheet; 501. Slide groove; 6. Sliding ring; 7. Transmission rod; 701. Ratchet; 702. Block. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition and explanation in the subsequent drawings.

[0032] In the above description of the present invention, 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 in which the product of the invention is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0034] See also Figure 1-5 The present invention provides a technical solution: a medical nursing auxiliary anal dilator, comprising an insertion rod 1 for inserting into a patient's anus, the insertion rod 1 being provided with a supporting portion capable of dilating the patient's anus, the insertion rod 1 being hollow and slidably connected with a sliding portion inside thereof, the side of the sliding portion being sealed and connected to the inside of the insertion rod 1, the inside of the insertion rod 1 comprising a first chamber and a second chamber located on both sides of the sliding portion, the outer wall of one end of the insertion rod 1 being provided with a liquid inlet 101 and a liquid outlet 102 communicating with the second chamber, and the other end being provided with a plug 103, the plug 103 being hollow and the outer wall being provided with an output port 1031 communicating with the inside thereof, a connecting pipe 2 being provided between the plug 103 and the liquid outlet 102, the two ends of the connecting pipe 2 being respectively communicated with the inside of the plug 103 and the liquid outlet 102.

[0035] In this solution, a plurality of elastic valves can be installed at the connection between the liquid outlet 102 and the connecting tube 2. When the plurality of elastic valves are in a natural state, they are in a closed state. In this state, the liquid outlet 102 and the connecting tube 2 are not connected. When a certain pressure difference is generated on both sides of the elastic valve, the plurality of elastic valves are opened to connect the liquid outlet 102 and the connecting tube 2.

[0036] Specific working principle and usage:

[0037] Step 1: The operator injects lubricating liquid into the second chamber through the liquid inlet 101, and then blocks the liquid inlet 101 with a sealing plug to seal it.

[0038] Step 2: gradually insert the end of the insertion rod 1 equipped with the plug 103 into the patient's anus.

[0039] Step three: As the insertion rod 1 is inserted, the sliding portion is controlled to gradually move toward the direction of the second chamber, so that the lubricating liquid in the second chamber is squeezed by the sliding portion. As the volume of the second chamber decreases, the internal pressure increases, so that the lubricating liquid is squeezed into the plug 103 through the liquid outlet 102 and the connecting tube 2, and is output to the patient's anus through the output port 1031 on the plug 103.

[0040] Step 4: After the insertion rod 1 is inserted to a specified depth, the patient's anus is expanded through the support portion to complete anal dilation of the patient, so that subsequent medical staff can examine or treat the patient.

[0041] That is, when using the medical care auxiliary anal dilator of the present invention to dilate the patient's anus, the insertion rod 1 is inserted into the patient's anus. At the same time, during the continuous insertion process, the movable part moves in the opposite direction synchronously with the inner cavity of the insertion rod 1, and the lubricating liquid in the second chamber is output to the patient's anus through the liquid outlet 102, the connecting tube 2 and the output port 1031. During the insertion process of the insertion rod 1, the outer wall of the insertion rod 1 and the supporting part on the outer wall can reduce the friction between it and the inside of the patient's anus through the action of the lubricating liquid, which can ensure smooth insertion while reducing the harm to the patient.

[0042] In this embodiment, the sliding part includes a movable plate 3, a sealing ring and a connecting rod 301 which are slidably connected to the insertion rod 1. The movable plate 3 is located between the first chamber and the second chamber. The sealing ring is sleeved on the arc surface of the movable plate 3, and the outer wall of the sealing ring is against the inner wall of the insertion rod 1. The connecting rod 301 is connected to a surface of the movable plate 3 close to the second chamber, and the end of the connecting rod 301 away from the movable rod passes through the end of the insertion rod 1 away from the plug 103.

[0043] In this solution, the movable plate 3 and the connecting rod 301 are connected as one piece, and the connecting rod 301 and the movable plate 3 can be fixed by connecting the connecting rod 301 to the fixing seat or by holding the connecting rod 301 by an operator;

[0044] During specific use, the operator pushes the insertion rod 1 to move toward the patient's anus. At this time, since the positions of the movable plate 3 and the connecting plate are fixed, as the insertion rod 1 moves, the movable plate 3 gradually moves in the inner cavity of the insertion rod 1 toward the direction of the second chamber, thereby squeezing the second chamber through the movable plate 3 to achieve the effect of squeezing out the lubricating liquid in the second chamber.

[0045] In the above process, when the insertion rod 1 moves, the movable plate 3 moves synchronously in the opposite direction, so that when the insertion rod 1 is inserted into the patient's anus, the movable plate 3 squeezes out the lubricating liquid. The two are in a synchronous state, which can better reduce the resistance encountered by the insertion of the insertion rod 1.

[0046] In this embodiment, one end of the connecting rod 301 away from the movable plate 3 is connected to a connecting seat 4, and the connecting seat 4 is connected to a fixing portion for fixing the entire device.

[0047] In this solution, the entire device can be fixed by the fixing part, and the connecting rod 301 is also fixed at the same time, which reduces the operation of the connecting rod 301 by the operator.

[0048] In this embodiment, the fixing part includes a base 401 and a support plate 402, the connecting seat 4 is connected to one end of the support plate 402, a support column is arranged between the bottom surface of the support plate 402 and the top surface of the base 401, and the upper and lower ends of the support column are respectively connected to the support plate 402 and the base 401.

[0049] In this solution, the base 401 can be placed on the bed, and the patient lies flat on the bed with the buttocks placed on the backrest 402;

[0050] The support plate 402 is tilted to facilitate the patient's lower body to be lifted upwards, so as to facilitate observation of the patient's anus.

[0051] In this embodiment, the support column includes a fixed column and a telescopic column, both of which are fixedly connected to the base 401 at their lower ends. The upper end of the fixed column is hinged to the end of the back plate away from the connecting seat 4, and the upper end of the telescopic column is hinged to the end of the back plate close to the connecting seat 4.

[0052] In this solution, the following effects can be achieved through the telescopic adjustment of the telescopic column and the coordination of the fixed column:

[0053] First, by contracting the telescopic column, the length of the telescopic column is shortened, resulting in a reduction in the distance between the back plate 402 and the base 401 at one end, causing the back plate 402 to tilt downward near the end of the telescopic column, and in this way the base 401 and the back plate 402 are installed. The specific method of use is: bring the end of the base 401 and the back plate 402 where the distance can be reduced close to the fixed platform (such as the edge of a table), and then use the telescopic column to reduce the distance between the back plate 402 and the base 401, causing the two to clamp and install on the fixed platform, thereby completing the installation.

[0054] Second, by extending the telescopic column, the length of the telescopic column increases, resulting in an increase in the distance between the back plate 402 and the base 401 at one end, causing the back plate 402 to tilt upward near one end of the telescopic column. At this time, the patient's buttocks placed on the back plate 402 are also raised, so that the extended length of the telescopic column is adjusted according to the operator's observation needs.

[0055] In this embodiment, the support portion includes a plurality of expansion pieces 5 and an adjustment component for adjusting the expansion range of the expansion pieces 5 . The plurality of expansion pieces 5 are evenly distributed in a ring shape with the insertion rod 1 as the axis. One end of the expansion piece 5 is hinged to the plug 103 .

[0056] During specific use, the operator unfolds the multiple expansion pieces 5 by adjusting the components. After unfolding, the multiple expansion pieces 5 are all against the inner wall of the patient's anus to achieve the anal expansion effect.

[0057] In this embodiment, the adjustment assembly includes a sliding ring 6 slidably connected to the insertion rod 1 and a locking member for fixing the sliding ring 6. The sliding ring 6 is located between the insertion rod 1 and the expansion piece 5, and the sliding ring 6 is sleeved on the insertion rod 1.

[0058] A slide groove 501 is formed on one side of the expansion piece 5 close to the sliding ring 6 . The horizontal position of the slide groove 501 close to the plug 103 is higher than that of the end away from the plug 103 . The slide groove 501 is inclined on one side facing the sliding ring 6 .

[0059] In this solution, when not in use, the expansion piece 5 is in an unexpanded state, and the side wall of the sliding ring 6 abuts against the end of the slide groove 501 close to the plug 103, and the slide groove 501 can completely accommodate the side wall of the ring.

[0060] When in use, the sliding ring 6 is moved in a direction away from the plug 103, so that the outer wall of the sliding ring 6 abuts against different positions of the sliding groove 501. In this process, since the surface of the sliding groove 501 abutting against the sliding ring 6 is an inclined surface, and as the sliding ring 6 moves in the above direction, the thickness of the sliding groove 501 abutting against the sliding ring 6 becomes thinner and thinner, so that the sliding ring 6 pushes up the expansion piece 5, and then the expansion piece 5 is expanded;

[0061] That is, by controlling the sliding ring 6 to abut against the sliding groove 501 at different positions, the expansion piece 5 is lifted and unfolded.

[0062] In this embodiment, the locking member includes a transmission rod 7, a ratchet 701 and a clamping block 702. The ratchet 701 and the clamping block 702 are both rotatably connected to the connecting seat 4. The clamping block 702 is connected to the connecting seat 4 through a torsion spring. The clamping block 702 is located on one side of the ratchet 701, and one end of the clamping block 702 is plugged into one side of the ratchet 701.

[0063] One end of the transmission rod 7 is coaxial with the ratchet 701 and threadedly connected, and the other end is connected to the sliding ring 6 .

[0064] In this solution, the block 702 is against the right side of the ratchet 701. In this state, the ratchet 701 can only rotate in the counterclockwise direction. When the ratchet 701 rotates counterclockwise, since the ratchet 701 is threadedly connected to the transmission rod 7, the transmission rod 7 can drive the slider to move in the direction away from the plug 103. Similarly, when the ratchet 701 rotates clockwise, the transmission rod 7 drives the slider to move in the direction close to the plug 103.

[0065] When used specifically, the following effects can be achieved through the cooperation of the transmission rod 7, the ratchet 701 and the clamping block 702:

[0066] First, the transmission rod 7, the ratchet 701 and the block 702 are not operated. The transmission rod 7 is set to connect the sliding ring 6 with the connecting seat 4. Since the connecting seat 4 is fixed, the sliding ring 6 is also fixed. When the operator pushes the insertion rod 1 toward the patient's anus, the insertion rod 1 and the plug 103 drive the expansion piece 5 to move because the sliding ring 6 is fixed. That is, the position where the slide groove 501 on the expansion piece 5 abuts against the sliding ring 6 changes, and the end of the slide groove 501 away from the plug 103 moves toward the direction of the sliding ring 6. That is, when the operator pushes the insertion rod 1 to insert into the patient's anus, the expansion piece 5 gradually expands with the push.

[0067] Secondly, the operator pulls the block 702 to make the ratchet 701 resume the state of being able to rotate in the clockwise direction. At this time, when the insertion rod 1 is pushed toward the patient's anus, the transmission rod 7 moves synchronously. Since the ratchet 701 is threadedly connected to the transmission rod 7, the ratchet 701 is forced to rotate clockwise. During this process, the expansion piece 5 is not deployed. When the insertion rod 1 is inserted to a certain depth, the operator releases the pull of the block 702, and the block 702 is reset to the right side of the ratchet 701 under the elastic force of the torsion spring. In this state, continuing to push the insertion rod 1 or rotating it in the counterclockwise direction will cause the slider to move in the direction away from the plug 103, thereby causing the expansion piece 5 to deploy.

[0068] In the above two effects, after the insertion rod 1 is inserted into the patient's anus, the unfolded expansion piece 5 is easily squeezed and contracted by the anus. At this time, since the fixing ring is connected to the ratchet 701 through the transmission rod 7, and the ratchet 701 is fixed by the clamping block 702, it can only rotate counterclockwise. Then, the expansion piece 5 is not easy to contract naturally under the cooperation of the sliding ring 6, the transmission rod 7, the ratchet 701 and the clamping block 702, so as to stably support the patient's anus.

[0069] In this embodiment, a heating wire is disposed in the expansion piece 5 , and a power supply unit electrically connected to the heating wire is disposed in the plug 103 .

[0070] During specific use, the power supply unit can be used to supply power to the heating wire, causing the heating wire to generate heat, so as to heat the expansion sheet 5 to a certain temperature, thereby reducing the patient's discomfort.

[0071] In this embodiment, two sides of the backing plate 402 are relatively bent into arcs, and a flexible pad is provided on the top surface of the backing plate 402 .

[0072] When used specifically, the patient can be better supported by the flexible pad on the backboard 402, giving the patient a certain sense of comfort. The flexible pad can be a sponge pad. When the patient maintains a posture of raising the buttocks for a long time, some patients are prone to sweating, and the sponge pad can absorb the sweat.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A medical nursing auxiliary anal dilator, comprising an insertion rod (1) for inserting into a patient's anus, wherein the insertion rod (1) is provided with a support portion capable of dilating the patient's anus, and characterized in that: The insertion rod (1) is hollow and has a sliding portion slidably connected therein; the side surface of the sliding portion is sealedly connected to the interior of the insertion rod (1); the interior of the insertion rod (1) comprises a first chamber and a second chamber located on both sides of the sliding portion; the outer wall of one end of the insertion rod (1) is provided with a liquid inlet (101) and a liquid outlet (102) communicating with the second chamber; the other end is provided with a plug (103); the plug (103) is hollow and has an outer wall provided with an output port (1031) communicating with the interior thereof; a connecting pipe (2) is provided between the plug (103) and the liquid outlet (102); the two ends of the connecting pipe (2) are respectively connected to the interior of the plug (103) and the liquid outlet (102).

2. The medical nursing auxiliary anal dilator according to claim 1, characterized in that: The sliding portion comprises a movable plate (3) slidably connected to the insertion rod (1), a sealing ring and a connecting rod (301); the movable plate (3) is located between the first chamber and the second chamber; the sealing ring is sleeved on the arc surface of the movable plate (3), and the outer wall of the sealing ring abuts against the inner wall of the insertion rod (1); the connecting rod (301) is connected to a surface of the movable plate (3) close to the second chamber; an end of the connecting rod (301) away from the movable rod passes through an end of the insertion rod (1) away from the plug (103).

3. The medical nursing auxiliary anal dilator according to claim 2, characterized in that: One end of the connecting rod (301) away from the movable plate (3) is connected to a connecting seat (4), and the connecting seat (4) is connected to a fixing portion for fixing the entire device.

4. The medical nursing auxiliary anal dilator according to claim 3, characterized in that: The fixing portion comprises a base (401) and a backing plate (402), the connecting seat (4) is connected to one end of the backing plate (402), a support column is arranged between the bottom surface of the backing plate (402) and the top surface of the base (401), and the upper and lower ends of the support column are respectively connected to the backing plate (402) and the base (401).

5. The medical nursing auxiliary anal dilator according to claim 4, characterized in that: The support column comprises a fixed column and a telescopic column, both of which have lower ends fixedly connected to the base (401); the upper end of the fixed column is hinged to an end of the back plate away from the connecting seat (4); and the upper end of the telescopic column is hinged to an end of the back plate close to the connecting seat (4).

6. The medical nursing auxiliary anal dilator according to claim 1, characterized in that: The support portion comprises a plurality of expansion pieces (5) and an adjustment component for adjusting the expansion range of the expansion pieces (5); the plurality of expansion pieces (5) are evenly distributed in a ring shape with the insertion rod (1) as an axis; one end of the expansion piece (5) is hinged to the plug (103).

7. The medical nursing auxiliary anal dilator according to claim 6, characterized in that: The adjustment assembly comprises a sliding ring (6) slidably connected to the insertion rod (1) and a locking member for fixing the sliding ring (6); the sliding ring (6) is located between the insertion rod (1) and the expansion piece (5), and the sliding ring (6) is sleeved on the insertion rod (1); A sliding groove (501) is provided on one side of the expansion piece (5) close to the sliding ring (6); the horizontal position of the end of the sliding groove (501) close to the plug (103) is higher than that of the end away from the plug (103); and the side of the sliding groove (501) facing the sliding ring (6) is an inclined surface.

8. The medical nursing auxiliary anal dilator according to claim 7, characterized in that: The locking member comprises a transmission rod (7), a ratchet (701) and a clamping block (702); the ratchet (701) and the clamping block (702) are both rotatably connected to the connecting seat (4); the clamping block (702) is connected to the connecting seat (4) via a torsion spring; the clamping block (702) is located on one side of the ratchet (701), and one end of the clamping block (702) is plugged into one side of the ratchet (701); One end of the transmission rod (7) is coaxial with the ratchet wheel (701) and threadedly connected, and the other end is connected to the sliding ring (6).

9. The medical nursing auxiliary anal dilator according to claim 6, characterized in that: A heating wire is arranged in the expansion piece (5), and a power supply unit electrically connected to the heating wire is arranged in the plug (103).

10. The medical nursing auxiliary anal dilator according to claim 4, characterized in that: The two sides of the backing plate (402) are relatively bent into an arc shape, and a flexible pad is provided on the top surface of the backing plate (402).

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