Phimosis dilator

Abstract

The utility model provides a phimosis dilator which comprises a base, an operating part and a plurality of elastic dilation arms, the operating part is movably arranged on the first side of the base, the elastic dilation arms are arranged on the base and extend towards the second side opposite to the base, the elastic dilation arms are configured to rotate relative to the base, and the phimosis dilator further comprises a limiting part arranged on the operating part, the limiting part is matched with the elastic expansion arm to restrain the elastic expansion arm to be in a closed state; when the operating piece is operated, the limiting parts and the elastic expansion arms are released from cooperation, and the multiple elastic expansion arms enter the first expansion state from the closed state; the pressing part is arranged on the first side of the base; when the operating piece is operated, the pressing part is controlled to abut against the elastic expansion arm, and the elastic expansion arm is driven to expand outwards to enter the second expansion state. The expansion degree can be further increased in the first expansion state, and different expansion degrees can be adjusted according to needs.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a prepuce dilator. BACKGROUND

[0002] The prepuce dilator is used for assisting the treatment of prepuce. The working principle of the prepuce dilator is to dilate the preputial orifice by a physical method, so as to improve the prepuce condition and avoid or reduce a series of problems that may be caused by the prepuce. The dilating structure of the prepuce dilator generally has two states of closing and dilating. During the operation, the doctor needs to hold the dilating structure with his hand to make it enter the closed state, and then releases the hand to make the dilating structure open to enter the dilating state and dilate the preputial orifice. However, the existing prepuce dilator relies on the restoring force of the elastic structure to dilate outward, and the dilating degree is limited. After the prepuce dilator enters the dilating state, there may be a case of insufficient dilatation. Moreover, the prepuce dilator is located in the human body and is difficult to further adjust, and cannot adaptively adjust the dilating degree according to different dilating requirements. CONTENT OF THE UTILITY MODEL

[0003] In view of the problems in the prior art, the purpose of the present application is to provide a prepuce dilator which can further increase the dilating degree in the first dilating state and can adjust different dilating degrees as required.

[0004] The prepuce dilator provided by the embodiments of the present application comprises a base, an operating member and a plurality of elastic dilating arms. The operating member is movably arranged on the first side of the base. The plurality of elastic dilating arms are arranged on the base and extend towards the second side opposite to the base. The plurality of elastic dilating arms are configured to rotate relative to the base. The prepuce dilator further comprises a limiting part arranged on the operating member. The limiting part cooperates with the elastic dilating arms to constrain the elastic dilating arms in the closed state. The operating member is operated to release the cooperation between the limiting part and the elastic dilating arms, and the plurality of elastic dilating arms enter the first dilating state from the closed state. A pressing part is arranged on the first side of the base. The operating member is operated to control the pressing part to press against the elastic dilating arms and drive the elastic dilating arms to dilate outward to enter the second dilating state.

[0005] In some embodiments, a plurality of bosses are extended on the outer wall of the operating member, and the plurality of bosses are arranged at intervals along the circumference of the operating member.

[0006] The first boss in the plurality of bosses is the limiting part, and the second boss in the plurality of bosses is the pressing part; or

[0007] The plurality of bosses and the plurality of elastic dilating arms correspond to each other. The top wall of each boss in the thickness direction is the limiting part, and the bottom wall of each boss in the thickness direction is the pressing part.

[0008] In some embodiments, a pressing member movably connected to the base is provided on the side of the operating member away from the elastic expansion arm, and the pressing member is moved towards the base to limit the linear displacement of the operating member so that the elastic expansion arm is maintained in the second expansion state.

[0009] In some embodiments, the base comprises a connecting plate and a fitting portion protruding from the first side of the connecting plate, and the elastic expansion arm is pivotally connected to the connecting plate, and the operating member and the pressing member are movably sleeved on the outer side of the fitting portion.

[0010] In some embodiments, the elastic expansion arm comprises an abutting portion;

[0011] In the closed state, the limiting portion is located between the connecting plate and the abutting portion, and in the second expansion state, the abutting portion is located between the pressing portion and the connecting plate.

[0012] In some embodiments, the fitting portion is provided with a plurality of first stop portions, and the operating member is provided with a plurality of second stop portions, and the first stop portion and the second stop portion are engaged to limit the rotational displacement of the operating member.

[0013] In some embodiments, the top end of the fitting portion is provided with an elastic limiting structure, and the elastic limiting structure has a clamping state with a larger outer diameter and an installation state with a smaller outer diameter.

[0014] In some embodiments, an elastic member is provided between the operating member and the base, and the elastic member is configured to provide a biasing force to the operating member away from the connecting plate.

[0015] In some embodiments, the pressing member is threadedly connected to the fitting portion.

[0016] In some embodiments, the elastic expansion arm is pivotally connected to the base through a rotating shaft, and a torsional spring is provided on the rotating shaft.

[0017] The phimosis expander provided by the present application has the following advantages:

[0018] By operating the operating member to move to adjust the different states of the phimosis expander, the limiting portion restricts the elastic expansion arm in the closed state when cooperating with the elastic expansion arm, and the operating member is operated to release the restriction of the limiting portion on the elastic expansion arm, so that the elastic expansion arm enters the first expansion state of outward expansion. When it is necessary to further increase the expansion degree of the elastic expansion arm to further expand the prepuce, the operating member is operated and the pressing portion is pressed against the elastic expansion arm, so that the elastic expansion arm is further expanded outwardly to enter the second expansion state, thereby further increasing the expansion degree of the elastic expansion arm in the first expansion state, and providing different expansion degrees in the first expansion state and the second expansion state, and the different expansion degrees can be adjusted as needed. BRIEF DESCRIPTION OF DRAWINGS

[0019] Other features, objects, and advantages of the application will become more apparent by reading the following detailed description along with the accompanying drawings, in which:

[0020] Figure 1 is a structural schematic diagram of a prepuce dilator in a closed state according to an embodiment of the present application;

[0021] Figure 2 is an exploded view of a prepuce dilator according to an embodiment of the present application;

[0022] Figure 3 is a bottom view of a prepuce dilator in a closed state according to an embodiment of the present application;

[0023] Figure 4 is a side view of a prepuce dilator in a closed state according to an embodiment of the present application;

[0024] Figure 5 is Figure 4 an enlarged view of A1 region in FIG. 1;

[0025] Figure 6 is a front view of a prepuce dilator in a closed state according to an embodiment of the present application;

[0026] Figure 7 is Figure 6 a sectional view of B1-B1 direction in FIG. 2;

[0027] Figure 8 is Figure 6 a sectional view of B2-B2 direction in FIG. 2;

[0028] Figure 9 is Figure 8 an enlarged view of A2 region in FIG. 1;

[0029] Figure 10 is a structural schematic diagram of a prepuce dilator when unlocked according to an embodiment of the present application;

[0030] Figure 11 is a top view of a prepuce dilator when unlocked according to an embodiment of the present application;

[0031] Figure 12 is a structural schematic diagram of a prepuce dilator in a first dilated state according to an embodiment of the present application;

[0032] Figure 13 is a bottom view of a prepuce dilator in a first dilated state according to an embodiment of the present application;

[0033] Figure 14 is a side view of a prepuce dilator in a first dilated state according to an embodiment of the present application;

[0034] Figure 15 is Figure 14Enlarged view of area A3;

[0035] Figure 16 is a front view of a prepuce dilator in a first dilated state according to an embodiment of the present application;

[0036] Figure 17 is a front view of a prepuce dilator in a second dilated state according to an embodiment of the present application; Figure 16 is a sectional view along direction B3-B3;

[0037] Figure 18 is a front view of a prepuce dilator in a third position according to an embodiment of the present application;

[0038] Figure 19 is a side view of a prepuce dilator in a third position according to an embodiment of the present application;

[0039] Figure 20 is a front view of a prepuce dilator in a second dilated state according to an embodiment of the present application;

[0040] Figure 21 is a side view of a prepuce dilator in a second dilated state according to an embodiment of the present application;

[0041] Figure 22 is a front view of a prepuce dilator in a second dilated state according to an embodiment of the present application; Figure 20 is an enlarged view of area A4;

[0042] Figure 23 is a bottom view of a prepuce dilator in a second dilated state according to an embodiment of the present application;

[0043] Figure 24 is a top view of a prepuce dilator in a second dilated state according to an embodiment of the present application;

[0044] Figure 25 is a front view of a prepuce dilator in a second dilated state according to an embodiment of the present application;

[0045] Figure 26 is a front view of a prepuce dilator in a second dilated state according to an embodiment of the present application; Figure 25 is a sectional view along direction B4-B4. DETAILED DESCRIPTION

[0046] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted. The words “or” and “or” in the specification may mean “and” or “or”. Although the terms “upper,” “lower,” “between,” etc., may be used in this specification to describe different exemplary features and elements of this application, these terms are used herein only for convenience, such as the orientation according to the examples described in the accompanying drawings. Nothing in this specification should be construed as requiring a specific three-dimensional orientation of the structure to fall within the scope of this application. Although “first” or “second,” etc., are used in this specification to denote certain features, they are merely indicative of function and not as a limitation on the number or importance of specific features.

[0047] like Figure 1 and Figure 2 As shown, this application embodiment provides a phimosis dilator, including a base 1, an operating member 3, and multiple elastic dilating arms 2. The operating member 3 is movably disposed on a first side of the base 1, and is provided with a limiting part 31 and a pressing part 32. Multiple elastic dilating arms 2 are disposed on the base 1 and extend towards a second side opposite to the base 1. Each elastic dilating arm 2 includes a first end, a pivot part 23, and a second end, with the pivot part 23 located between the first and second ends. The first end of the elastic dilating arm 2 is provided with a stop part 21, and the second end is an dilating end for dilating the foreskin opening. The second end may optionally be provided with a barb part 22 to improve the stability of the foreskin opening fixation. In this application, the outward expansion of the elastic dilating arm 2 refers to the outward expansion of the second end of the elastic dilating arm 2. In this embodiment, three elastic dilating arms 2 are provided to achieve three-pronged dilation of the foreskin opening, making the circumferential force on the foreskin opening more balanced, reducing damage to the foreskin opening, and avoiding uneven dilation force that could lead to scarring. The operating component 3 is a pressure cap structure. The user can hold the outer wall of the operating component 3 and rotate it clockwise or counterclockwise relative to the base 1. Operating the operating component 3 allows it to move relative to the base 1, switching between a first position, a second position, and a third position. During this switching, the relative positions of the limiting part 31, the pressing part 32, and the abutting part 21 are adjusted to switch the different states of the elastic expansion arm 2. In this embodiment, by operating the operating component 3, the elastic expansion arm 2 can switch between a closed state, a first expansion state, and a second expansion state. After unlocking, the closed state enters the first expansion state. In the first expansion state, it continues to expand outward to enter the second expansion state, so that the expansion angle of the elastic expansion arm 2 in the second expansion state is greater than that in the first expansion state, resulting in a wider angle adjustment range for the phimosis expander.

[0048] Figure 1 The state of the prepuce dilator is shown when the operating member 3 is in the first position, at this time, the limiting part 31 is located between the base 1 and the abutting part 21 of the elastic dilating arm 2, the limiting part 31 cooperates with the abutting part 21 to constrain the elastic dilating arm 2 in the closed state, the second end of the elastic dilating arm 2 is inwardly retracted, so that the prepuce dilator is easier to be placed into the prepuce cavity. Figure 10 The state of the prepuce dilator is shown when the operating member 3 is in the intermediate position between the first position and the second position, at this time, the limiting part 31 is out of cooperation with the abutting part 21 of the elastic dilating arm 2, the limiting part 31 no longer constrains the abutting part 21 of the elastic dilating arm 2, and the elastic dilating arm 2 is unlocked. Figure 12 The state of the prepuce dilator is shown when the operating member 3 is in the second position, the second position of the operating member 3 is located directly above the intermediate position of the operating member 3, at this time, the limiting part 31 is still in the state of out of cooperation with the abutting part 21 of the elastic dilating arm 2, and the elastic dilating arm 2 rotates relative to the base 1 to make the second end of the elastic dilating arm 2 outwardly expand into the first expansion state. Figure 10 The state of the prepuce dilator is shown when the operating member 3 is in the second position, the second position of the operating member 3 is located directly above the intermediate position of the operating member 3, at this time, the limiting part 31 is still in the state of out of cooperation with the abutting part 21 of the elastic dilating arm 2, and the elastic dilating arm 2 rotates relative to the base 1 to make the second end of the elastic dilating arm 2 outwardly expand into the first expansion state. Figure 18 The state of the prepuce dilator is shown when the operating member 3 is in the third position, at this time, the limiting part 31 is located directly above the abutting part 21, and the abutting part 21 is located between the pressing part 32 and the connecting plate 12. Figure 18 In the state, when the driving operating member 3 moves towards the elastic dilating arm 2, the pressing part 32 abuts against the abutting part 21 of the elastic dilating arm 2 to apply a force to drive the second end of the elastic dilating arm 2 to further outwardly expand into the second expansion state. Figure 20 The second expansion state is shown. Figure 20 The fourth position of the operating member 3 is shown, the fourth position is located directly below the third position, and the fourth position is an adjustable position, that is, when the operating member 3 is compressed to different degrees from the third position, different fourth positions are reached.

[0049] As shown in Figure 2 and Figure 3 , the base 1 includes the connecting plate 12 and the cooperating part 11, the cooperating part 11 is protruded on the first side of the connecting plate 12. The cooperating part 11 is a columnar structure, the operating member 3 is movably sleeved on the outside of the cooperating part 11, the operating member 3 can rotate relative to the cooperating part 11 around the axis of the cooperating part 11, and the operating member 3 can move along the axial direction of the cooperating part 11. In the embodiment, the outer wall of the operating member 3 is provided with a plurality of bosses, the opposite top wall and bottom wall of each boss in the thickness direction (up-down direction) form the limiting part 31 and the pressing part 32 respectively, and the relative positions of the limiting part 31 and the pressing part 32 to the abutting part 21 can be adjusted by rotating the operating member 3. Figure 2

[0050] ​It can be understood that in other embodiments of the present application, the limiting portion and the pressing portion can also be different protrusions provided on the outer wall of the operating member. For example, the plurality of protrusions include first protrusions and second protrusions. In the closed state, each first protrusion corresponds to the elastic expansion wall as the limiting portion, and each second protrusion is located in the gap between adjacent elastic expansion arms. In the first expansion state, each first protrusion and each second protrusion are simultaneously located in the gap between adjacent elastic expansion arms. Each second protrusion corresponds to the elastic expansion arm as the pressing portion, and each first protrusion is located in the gap between any adjacent elastic expansion arms. The second protrusion is different in height from the first protrusion, so that when the elastic expansion arm is unlocked by rotating the operating member, the second protrusion does not block the elastic expansion arm from opening outward. For example, the second protrusion can be provided directly below the first protrusion, or the second protrusion can be a pressing plate with small thickness extending outward from the bottom edge of the operating member, so as not to block the elastic expansion arm from expanding to the first expansion state after being unlocked.

[0051] The connecting plate 12 is provided with a mounting groove 121, and the pivot portion 23 of the elastic expansion arm 2 is partially located in the mounting groove 121. The pivot portion 23 is pivotally connected to the connecting plate 12 through the rotating shaft 5. The rotating shaft 5 is in one-sided interference fit with the shaft hole provided on the connecting plate 12. The rotating shaft 5 is provided with a torsion spring 62, which is configured to provide a biasing force to the elastic expansion arm 2 to make the second end of the elastic expansion arm 2 expand outward. When the elastic expansion arm 2 is unlocked, the elastic expansion arm 2 can be rotated relative to the connecting plate 12 to enter the first expansion state under the elastic deformation restoring force of the torsion spring 62. In this embodiment, the torsion spring 62 is provided to connect the elastic expansion arm 2 and the connecting plate 12, instead of using a spring sheet to provide an outward expansion force to the elastic expansion arm 2. This is beneficial to increase the expansion force and range of the elastic expansion arm 2. Compared with the recovery scheme relying on the deformation restoring force of the spring sheet itself, the scheme using the torsion spring 62 can increase the retraction force and range of the foreskin opening.

[0052] As Figure 6 and Figure 7As shown, an elastic member 61 is arranged between the operating member 3 and the base 1, and is configured to provide a biasing force to the operating member 3 away from the connecting plate 12. In this embodiment, the elastic member 61 is a spring arranged between the operating member 3 and the connecting plate 12. When the operating member 3 is in the first position, the limiting portion 31 is located between the abutting portion 21 and the connecting plate 12. Under the biasing force of the torsion spring 62, the elastic expansion arm 2 has a tendency to expand outwardly, and under the biasing force of the elastic member 61, the operating member 3 has a tendency to move upwardly. When the operating member 3 is in the first position, the limiting portion 31 is located between the abutting portion 21 and the connecting plate 12, and the limiting portion 31 and the abutting portion 21 abut against and interact with each other. The limiting portion 31 limits the tendency of the elastic expansion arm 2 to expand outwardly, and keeps the elastic expansion arm 2 in the closed state, while the abutting portion 21 limits the tendency of the operating member 3 to move upwardly, and keeps the operating member 3 in the first position close to the connecting plate 12. At this time, both the elastic member 61 and the torsion spring 62 are elastically deformed.

[0053] In this embodiment, a pressing member 4 is further arranged on the side of the operating member 3 away from the elastic expansion arm 2 (the upper side in the middle) Figure 1 . The pressing member 4 movably sheaths the outside of the fitting portion 11. After the operating member 3 moves to the third position, the pressing member 4 is used to drive the operating member 3 to move towards the abutting portion 21, so as to press the abutting portion 21 of the elastic expansion arm 2, and make the second end of the elastic expansion arm 2 further expand outwardly to enter the second expansion state. The pressing member 4 and the fitting portion 11 are in threaded cooperation. An internal thread is arranged on the inside of the pressing member 4, and an external thread is arranged on the outside of the fitting portion 11. The pressing member 4 and the fitting portion 11 are a nut and a stud that cooperate with each other. Through the threaded cooperation, the pressing member 4 can be stopped and kept at different positions relative to the fitting portion 11. Through the pressing member 4, the operating member 3 can be kept in the state of pressing the abutting portion 21, so as to keep the stability of the second expansion state of the elastic expansion arm 2. Moreover, by adjusting the different positions of the pressing member 4 on the fitting portion 11, the height of the fourth position reached by the operating member 3 is also different, the pressure applied by the pressing portion 32 to the abutting portion 21 is also different, and the degree of further expansion of the elastic expansion arm 2 is also different, so as to further improve the flexibility of the expansion degree adjustment of the elastic expansion arm 2, realize the stepless adjustment of the expansion degree of the prepuce orifice, and be able to adapt to various prepuce orifice size ranges, and have better compatibility.

[0054] As shown in the drawings, Figure 1 , Figure 6 and Figure 7As shown, the top end of the fitting part 11 is provided with an elastic limiting structure 111, which has a clamping position with a large outer diameter and an installation position with a small outer diameter. By providing the elastic limiting structure 111, the pressurizing part 4 can be prevented from being accidentally detached from the top end of the fitting part 11. The elastic limiting structure 111 includes a plurality of elastic portions arranged in a circumferential direction. When the elastic limiting structure 111 is not subjected to an external force, each elastic portion expands outwardly, and a gap is provided between adjacent elastic portions, so that the top end of the elastic limiting structure 111 forms a flared structure with a large outer diameter. When the pressurizing part 4 is installed on the fitting part 11, the elastic limiting structure 111 is first pressed, so that the gap between the elastic portions is reduced, the outer diameter of the top end of the elastic limiting structure 111 is reduced to the installation position, and the pressurizing part 4 can be installed on the fitting part 11 through the elastic limiting structure 111. When the elastic limiting structure 111 is released, the elastic limiting structure 111 returns to the clamping position, the upward movement of the pressurizing part 4 is limited, and the pressurizing part 4 can be prevented from being accidentally detached from the top end of the fitting part 11 due to excessive upward movement.

[0055] As shown in Figure 8 and Figure 9 , the inner wall of the operating part 3 and the outer wall of the fitting part 11 are in a clearance fit. The fitting part 11 is provided with a plurality of first stop portions 112, and the operating part 3 is provided with a plurality of second stop portions 33. The first stop portions 112 and the second stop portions 33 are engaged to limit the rotational displacement of the operating part 3, and the operating part 3 is operated, so that the first stop portions 112 can be separated from the second stop portions 33. In this embodiment, the first stop portions 112 are stop grooves, and the second stop portions 33 are interference strips. The first stop portions 112 are uniformly distributed on the inner wall of the operating part 3, and the second stop portions 33 are uniformly distributed on the outer wall of the fitting part 11. In an alternative embodiment, the first stop portions can be interference strips, and the second stop portions can be stop grooves. In this embodiment, there are six first stop portions 112 and six second stop portions 33, and the operating part 3 has six active positions relative to the fitting part 11. Through the engagement of the first stop portions 112 and the second stop portions 33, the operating part 3 can be relatively stably maintained at each position when the operating part 3 is not operated.

[0056] The switching process of the phimosis dilator in each state will be described in detail below with reference to the various drawings.

[0057] Figures 1 to 9This is a schematic diagram of the phimosis dilator in this embodiment with the elastic dilator arm 2 in the closed state. When the phimosis dilator is inserted into the foreskin cavity, the elastic dilator arm 2 needs to be kept in the closed state. If the elastic dilator arm 2 is in the first expanded state at this time, it needs to be switched from the first expanded state to the closed state. This switching process includes: overcoming the biasing force of the torsion spring 62, compressing and closing the second end of the elastic dilator arm 2 inward under the action of external force, and overcoming the biasing force of the elastic member 61, pressing down the operating member 3, and then adjusting the position of the operating member 3 relative to the mating part 11 so that the limiting part 31 enters between the abutting part 21 and the connecting plate 12, and the operating member 3 reaches the first position. Under the biasing force of the torsion spring 62, the elastic dilator arm 2 tends to expand outward. Under the biasing force of the elastic member 61, the operating member 3 tends to move upward and approach the pressure member 4. Under the mutual abutment and restriction of the abutting part 21 and the limiting part 31, the operating member 3 is held in the first position, and the elastic dilator arm 2 is held in the closed state. At this point, the phimosis dilator can be easily inserted into the foreskin cavity.

[0058] Figure 10 and Figure 11 This is a schematic diagram of the phimosis dilator in this embodiment when the elastic dilator arm 2 is unlocked. After adjusting the position of the phimosis dilator in the foreskin cavity, the position of the operating member 3 relative to the mating part 11 is adjusted so that the limiting part 31 separates from the abutting part 21, and the limiting part 31 is located between two adjacent abutting parts 21. Figure 11 As shown, at this time, the limiting part 31 and the abutting part 21 are staggered in the circumferential direction and no longer limit each other. At this time, the operating member 3 is in an unstable intermediate position, and the elastic expansion arm 2 is also in an unstable intermediate state.

[0059] Figures 12 to 17 This is a schematic diagram of the phimosis dilator in this embodiment with the elastic dilator arm 2 in the first expanded state. After the elastic dilator arm 2 is unlocked, under the elastic restoring force of the elastic member 61, the operating member 3 automatically springs upward and approaches the pressure member 4, reaching... Figure 12 The second position shown, the second position is in Figure 10 The foreskin opening is shown directly above the center position. Under the elastic restoring force of the torsion spring 62, the elastic expansion arm 2 rotates automatically, and its second end expands outward to enter the first expansion state, expanding the foreskin opening through the second end of the elastic expansion arm 2. When the operating member 3 is in the second position, the limiting part 31 and the abutting part 21 are still staggered in the circumferential direction, that is, the orthographic projections of the limiting part 31 and the abutting part 21 on the upper surface of the connecting plate 12 do not overlap. The elastic expansion arm 2 is unlocked by rotating the operating member 3, and the operating member 3 springs back upward after unlocking, making the unlocking feel more obvious. In the first expansion state, the foreskin opening is automatically adaptively adjusted and expanded by the elastic restoring force of the torsion spring 62 itself.

[0060] Figure 18 and Figure 19 is a structural schematic view of the phimosis dilator after adjusting the operation member 3 to the third position. Figures 20 to 26 is a structural schematic view of the phimosis dilator when the elastic expansion arm 2 is in the second expansion state. In use of the phimosis dilator, if the expansion of the elastic expansion arm 2 to the prepuce orifice in the first expansion state can meet the requirements, there is no need to adjust the operation member 3 to the third position, and there is no need to adjust the elastic expansion arm 2 to the second expansion state. If the expansion of the elastic expansion arm 2 to the prepuce orifice in the first expansion state cannot meet the requirements, the second end of the elastic expansion arm 2 is further expanded outward by operating the pressing member 4. The process of entering the second expansion state from the first expansion state is: adjusting the position of the operation member 3 relative to the fitting part 11, so that the pressing part 32 of the operation member 3 is located directly above the abutting part 21, that is, the orthographic projection of the pressing part 32 on the upper surface of the connecting plate 12 at least partially overlaps the orthographic projection of the abutting part 21 on the upper surface of the connecting plate 12, at this time the operation member 3 is in the third position. Figure 18 and Figure 19 the third position shown. Then rotate the pressing member 4 to move the pressing member 4 downward, the pressing member 4 drives the operation member 3 to move downward, the pressing part 32 contacts the abutting part 21 to give the abutting part 21 a downward driving force, which drives the elastic expansion arm 2 to further rotate, the second end of the elastic expansion arm 2 is further expanded outward, the expansion degree to the prepuce orifice is increased, and the elastic expansion arm 2 enters Figure 20 the second expansion state shown. Since the pressing member 4 and the fitting part 11 are in threaded cooperation, the pressing member 4 can be kept in the current position by the threaded structure, and the operation member 3 is kept in the current fourth position against the biasing force of the elastic member 61, the fourth position is directly below the third position. By adjusting the number of turns of the downward rotating movement of the pressing member 4, the height of the fourth position of the operation member 3 can be adjusted, and the expansion degree of the elastic expansion arm 2 in the second expansion state can be flexibly adjusted.

[0061] After the second expansion state ends, the phimosis dilator needs to be removed from the prepuce cavity, rotate the pressing member 4 back to the top of the fitting part 11, the operation member 3 will automatically pop up upward under the elastic restoring force of the elastic member 61 and no longer press the abutting part 21. After the second end of the elastic expansion arm 2 is compressed by an external force and the second end of the elastic expansion arm 2 is folded inward, the phimosis dilator can be removed from the prepuce cavity.

[0062] In summary, the phimosis dilator provided by the present application has the following advantages:

[0063] By using the application, the different states of the prepuce dilator are adjusted by operating the operating member 3 to move relative to the base 1, the operating member 3 can constrain the elastic expansion arm 2 in the closed state when in the first position, moving the operating member 3 to the second position can release the constraint on the elastic expansion arm 2, so that the elastic expansion arm 2 enters the first expansion state of outward expansion, when it is needed to further increase the expansion degree of the elastic expansion arm 2 to further expand the prepuce opening, moving the operating member 3 to the third position and pressing the elastic expansion arm 2, the elastic expansion arm 2 can further expand outward to enter the second expansion state, so that the expansion degree can be further increased in the first expansion state, different expansion degrees are provided in the first expansion state and the second expansion state, so that different expansion degrees can be adjusted as needed.

[0064] The above is a further detailed description of the application in combination with specific preferred embodiments, and the specific implementation of the application cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the application belongs, several simple deductions or substitutions can be made without departing from the concept of the application, and all of them should be regarded as falling within the protection scope of the application.

Claims

1. A phimosis dilator, comprising a base, an operating member, and a plurality of elastic dilating arms, wherein the operating member is movably disposed on a first side of the base, and the plurality of elastic dilating arms are disposed on the base and extend toward a second side opposite to the base, and the plurality of elastic dilating arms are configured to rotate relative to the base, characterized in that, Also includes: A limiting part is provided on the operating member, and the limiting part cooperates with the elastic expansion arm to constrain the elastic expansion arm to be in a closed state. When the operating component is operated, the limiting part is disengaged from the elastic expansion arm, and the plurality of elastic expansion arms move from the closed state to the first expansion state. A pressing part is provided on the first side of the base; Specifically, by operating the operating member, the pressing part is controlled to press against the elastic expansion arm, and the elastic expansion arm is driven to expand outward to enter the second expansion state. In the second expansion state, the expansion angle of the elastic expansion arm is greater than the expansion angle of the elastic expansion arm in the first expansion state.

2. The phimosis dilator according to claim 1, characterized in that, Multiple protrusions extend from the outer wall of the operating component, and the multiple protrusions are spaced apart along the circumference of the operating component. Wherein, the first boss among the plurality of bosses is the limiting part, and the second boss among the plurality of bosses is the pressing part; or The plurality of protrusions and the plurality of elastic expansion arms correspond one-to-one. The top wall of each protrusion in the thickness direction is the limiting part, and the bottom wall of each protrusion in the thickness direction is the pressing part.

3. The phimosis dilator according to claim 1, characterized in that, It also includes a pressure member movably connected to the base, the pressure member being located on the side of the operating member away from the elastic expansion arm. By operating the pressure member, the pressure member moves toward the base to limit the linear displacement of the operating member so that the elastic expansion arm is maintained in the second expansion state.

4. The phimosis dilator according to claim 3, characterized in that, The base includes a connecting plate and a mating part. The mating part protrudes from the first side of the connecting plate. The elastic expansion arm is pivotally connected to the connecting plate. The operating member and the pressure member are respectively movably sleeved on the outside of the mating part.

5. The phimosis dilator according to claim 4, characterized in that, The elastic expansion arm includes a stop portion; In the closed state, the limiting part is located between the connecting plate and the abutting part; in the second expanded state, the abutting part is located between the pressing part and the connecting plate.

6. The phimosis dilator according to claim 4, characterized in that, The mating part is provided with a plurality of first stop parts, and the operating member is provided with a plurality of second stop parts. The first stop parts and the second stop parts are engaged to limit the rotational displacement of the operating member.

7. The phimosis dilator according to claim 4, characterized in that, The top of the mating part is provided with an elastic limiting structure, which has a locking state with a large outer diameter and an installation state with a small outer diameter.

8. The phimosis dilator according to claim 4, characterized in that, An elastic element is provided between the operating member and the base, and the elastic element is configured to provide the operating member with a biasing force away from the connecting plate.

9. The phimosis dilator according to claim 4, characterized in that, The pressure-applying component and the mating part are threaded together.

10. The phimosis dilator according to claim 1, characterized in that, The elastic expansion arm is pivotally connected to the base via a rotating shaft, and a torsion spring is provided on the rotating shaft.

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