Phimosis dilator

Abstract

The utility model provides a phimosis dilator which comprises a base, an operating part, a plurality of elastic dilating arms and a limiting assembly, the operating part is movably arranged on the first side of the base, and the elastic dilating arms are arranged on the base and stretch out towards the second side opposite to the base; the elastic expansion arms are configured to rotate relative to the base so as to be switched between an opening state and a closing state, the limiting assembly comprises a first limiting part and a second limiting part, the first limiting part is arranged on the base, and the second limiting part is arranged on the elastic expansion arms or the operation piece; the first limiting part and the second limiting part are matched with each other to restrain the plurality of elastic expansion arms to be in a closed state; and when the operating piece is operated, the first limiting part and the second limiting part are released from cooperation, and the multiple elastic expansion arms enter the opening state from the closing state. The stability of the closed state can be kept, the closed state can be conveniently switched to the open state, use is convenient, and the use safety and the treatment effect are improved.

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 opening. During the operation, the doctor needs to hold the dilating structure by hand to make it enter the closed state, and then releases the hand to make the dilating structure open and dilate the preputial orifice after being placed in the prepuce. However, the existing prepuce dilator is difficult to balance the stability of the closed state and the convenience of the opening operation. In the process of placing the prepuce dilator into the preputial cavity, the dilating structure may be opened in advance due to the instability of the closed state, and the tissue may be damaged. After the prepuce dilator is placed in place, the opening operation of the dilating structure in the closed state may not be convenient and smooth, which affects the treatment effect. 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 maintain the stability of the closed state and conveniently switch from the closed state to the open state, is convenient to use, and improves the use safety and treatment effect.

[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 to switch between the open state and the closed state. The prepuce dilator further comprises a limiting assembly comprising a first limiting part and a second limiting part. The first limiting part is arranged on the base, and the second limiting part is arranged on the plurality of elastic dilating arms or the operating member. The first limiting part and the second limiting part cooperate with each other to constrain the plurality of elastic dilating arms in the closed state. The operating member is operated, the first limiting part and the second limiting part are disengaged, and the plurality of elastic dilating arms switch from the closed state to the open state.

[0005] In some embodiments, the second limiting part is arranged on the operating member. The first limiting part and the second limiting part cooperate with each other to keep the operating member close to the base. When the operating member is operated to move away from the base, the first limiting part and the second limiting part are disengaged.

[0006] In some embodiments, the base comprises a connecting plate, the elastic dilating arms are pivotally connected with the connecting plate, and the operating member comprises a button part.

[0007] The elastic expansion arm comprises an abutting portion, when the elastic expansion arm is in the closed state, the abutting portion of the elastic expansion arm abuts against the button portion of the operating member; after the operating member is operated to separate the button portion from the abutting portion, the abutting portion of the elastic expansion arm is close to the connecting plate and the elastic expansion arm enters the open state.

[0008] In some embodiments, the base is further provided with a matching portion, the first limiting portion is arranged on the outer wall of the matching portion; the button portion is provided with a first accommodating cavity, and the second limiting portion is arranged on the inner wall of the first accommodating cavity.

[0009] When the operating member is located close to the base, the portion of the matching portion provided with the first limiting portion is located inside the first accommodating cavity, and the first limiting portion and the second limiting portion form an interference fit.

[0010] In some embodiments, the second limiting portion is arranged on the elastic expansion arm; the first limiting portion and the second limiting portion cooperate with each other to constrain the plurality of elastic expansion arms in the closed state; when the operating member is operated to move close to the base, the operating member presses the elastic expansion arm to rotate the elastic expansion arm relative to the base, and the first limiting portion and the second limiting portion are disengaged.

[0011] In some embodiments, the base comprises a plurality of mounting grooves, the elastic expansion arm is pivotally mounted in the mounting groove, and the two sides of the elastic expansion arm are respectively provided with a second limiting portion, and the inner wall of the mounting groove is provided with a first limiting portion at a position opposite to the second limiting portion.

[0012] In some embodiments, the operating member comprises a first accommodating cavity, the base comprises a matching portion, and the matching portion is at least partially located in the first accommodating cavity.

[0013] In some embodiments, the sliding structure is further included, the sliding structure is fixedly connected with the operating member, the base is provided with a second accommodating cavity for accommodating the sliding structure, and the sliding structure can drive the operating member to move away from or close to the base.

[0014] In some embodiments, the elastic expansion arm comprises a first elastic member and an expansion arm, the first elastic member is configured to provide an elastic force to the expansion arm to expand the expansion arm outward.

[0015] In some embodiments, a second elastic member is further included, the second elastic member is configured to provide an elastic force to the operating member to move away from the base.

[0016] The phimosis expander provided in the present application has the following advantages:

[0017] By adopting the application, the elastic expansion arm has a closed state and an open state, when the elastic expansion arm is in the closed state, the stability of the closed state can be maintained through cooperation of the second limiting part and the first limiting part, and through operation of the operating member, the elastic expansion arm can be conveniently switched from the closed state to the open state, convenient to use, convenient to unlock, and the use safety and treatment effect are improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Other features, objects, and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments, read in conjunction with the accompanying drawings.

[0019] Figure 1 is a structural schematic view of the phimosis expander of the embodiment 1 of the application in the contracted state;

[0020] Figure 2 is an expanded schematic view of the phimosis expander of the embodiment 1 of the application;

[0021] Figure 3 is a bottom view of the phimosis expander of the embodiment 1 of the application in the contracted state;

[0022] Figure 4 is a sectional view along A1-A1 direction in Figure 3

[0023] Figure 5 is a partial enlarged view at B in Figure 4

[0024] Figure 6 is a structural schematic view of the phimosis expander of the embodiment 1 of the application in the open state;

[0025] Figure 7 is an expanded schematic view of the phimosis expander of the embodiment 1 of the application;

[0026] Figure 8 is a bottom view of the phimosis expander of the embodiment 1 of the application in the expanded state;

[0027] Figure 9 is a sectional view along A2-A2 direction in Figure 8

[0028] Figure 10 is a partial enlarged view at C in Figure 9

[0029] Figure 11 is a structural schematic view of the phimosis expander of the embodiment 2 of the application in the contracted state;

[0030] Figure 12 is a partial enlarged view at D in Figure 11 ​​​​​

[0031] Figure 13 This is a bottom view of the phimosis dilator of Embodiment 2 of this application in the contracted state;

[0032] Figure 14 yes Figure 13 A sectional view along the A3-A3 direction;

[0033] Figure 15 This is a schematic diagram of the phimosis dilator in the open state according to Embodiment 2 of this application;

[0034] Figure 16 This is a schematic diagram of the phimosis dilator of Embodiment 2 of this application in the open state from another perspective. Detailed Implementation

[0035] 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.

[0036] Figures 1-10 This is a schematic diagram of the phimosis dilator according to Embodiment 1 of this application. Figure 1 As shown, in Embodiment 1, the phimosis dilator includes 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 the multiple elastic dilating arms 2 are disposed on the base 1 and extend toward a second side opposite to the base 1. Figure 1 From the perspective of [the image], the first side of the base 1 is the upper side of the base 1, and the second side of the base 1 is the lower side of the base 1. In this embodiment, four elastic expansion arms 2 are shown as an example, but this application is not limited to this. The number of elastic expansion arms 2 can be selected as needed, and may be greater than or equal to four, in order to balance the circumferential force on the foreskin opening and reduce damage to the foreskin opening during use.

[0037] The elastic expansion arm 2 is configured to rotate relative to the base 1 in the open state. Figure 6 The shown states) and closed states (Figure 1 Switching between the shown states. For example... Figures 1-4 As shown, the base 1 includes a connecting plate 14 and a mating portion 11. The mating portion 11 is located above the connecting plate 14 and protrudes towards the operating member 3 relative to the connecting plate 14. The connecting plate 14 is provided with a plurality of mounting grooves 15, and the pivot portion 213 of each elastic expansion arm 2 is pivotally connected to the inner wall of the mounting groove 15 via a rotating shaft 5. The elastic expansion arm 2 includes a first elastic element 22 and an expansion arm 21. The first elastic element 22 is configured to provide an elastic force to the expansion arm 21, causing its second end to expand outward. The first end (upper end) of the expansion arm 21 is provided with a stop portion 211, and the second end (lower end) is a portion for opening the foreskin opening. In this embodiment, the first elastic element 22 is a spring sheet extending downward from the connecting plate 14, and the first elastic element 22 may be integrally formed with the connecting plate 14. However, this application is not limited to this. In other alternative embodiments, the first elastic element 22 may also be replaced with a torsion spring, a spring, or a spring sheet not integrally formed with the connecting plate 14, which is also within the protection scope of this application. The surface of the expansion arm 21 is provided with multiple protrusions 214, which helps to increase the friction between the expansion arm 21 and the foreskin tissue and prevent slippage.

[0038] like Figure 3 and Figure 4 As shown, the operating member 3 includes a button portion 31, and the button portion 31 has a first receiving cavity 34 inside. The top end of the mating portion 11 enters at least partially into the first receiving cavity 34. The phimosis dilator also includes a sliding structure 4, which is a pin located in the first receiving cavity 34, and the top end of the sliding structure 4 is fixedly connected to the operating member 3. The base 1 has a second receiving cavity 13 for accommodating the sliding structure 4. The mating portion 11, the button portion 31, and the sliding structure 4 are coaxially arranged, and the sliding structure 4 and the button portion 31 can move relative to the mating portion 11 along the axial direction of the mating portion 11, so that the operating member 3 moves closer to or away from the base 1. The bottom end of the sliding structure 4 passes through the central opening of the connecting plate 14 and protrudes below the connecting plate 14. The bottom of the sliding structure 4 has a stop portion 41 to prevent the sliding structure 4 from separating from the base 1 when it moves upward. The first receiving cavity 34 also has a second elastic member 6, which is configured to provide the operating member 3 with an elastic force that moves it away from the base 1. The second elastic element 6 is, for example, a compression spring, but can also be selected as other types of elastic elements as needed.

[0039] like Figure 4 and Figure 5As shown, the prepuce dilator further comprises a limiting assembly for limiting the closing state of the elastic dilator arm 2. The limiting assembly comprises a first limiting part 12 arranged on the outer wall of the fitting part 11 of the base 1 and a second limiting part 32 arranged on the inner wall of the first accommodating cavity 34 of the button part 31. The first limiting part 12 and the second limiting part 32 can be annular convex rings. However, the application is not limited thereto, and the first limiting part 12 and / or the second limiting part 32 can be arranged as a convex column, a convex strip or the like.

[0040] The switching of the elastic dilator arm 2 between the closing state and the open state will be described in detail below with reference to the drawings.

[0041] As shown in Figure 4 and Figure 5 , when the elastic dilator arm 2 is in the closing state, the operating member 3 is located close to the base 1, the part of the fitting part 11 provided with the first limiting part 12 is located inside the first accommodating cavity 34, and the first limiting part 12 and the second limiting part 32 form an interference fit to keep the operating member 3 close to the base 1. The abutting part 211 of the dilator arm 21 abuts against the button part 31 of the operating member 3. Since the button part 31 has a large outer diameter, under the abutting action of the button part 31, the second end of the dilator arm 21 is folded inward, so that the elastic dilator arm 2 is kept in the closing state, and the first elastic member 22 is in an elastic deformation state. In the closing state, the prepuce dilator can be put into the prepuce cavity. In the closing state, the second elastic member 6 is compressed and is in an elastic deformation state, but the upward elastic force exerted by the second elastic member 6 on the operating member 3 is insufficient to overcome the action force of the interference fit between the first limiting part 12 and the second limiting part 32.

[0042] When the elastic dilator arm 2 is in the closing state, the operating member 3 is manually lifted upward, the operating member 3 moves away from the base 1, and the second limiting part 32 moves upward beyond the first limiting part 12, so that the first limiting part 12 and the second limiting part 32 are disengaged. The operating member 3 is kept away from the base 1 under the elastic force of the second elastic member 6. The abutting part 211 of the dilator arm 21 loses the abutting action of the button part 31 and is folded inward, and the elastic dilator arm 2 rotates relative to the base 1 under the elastic force of the first elastic member 22, the second end of the dilator arm 21 expands outward, and the elastic dilator arm 2 enters the open state as shown in Figures 6-10 , so as to expand the narrow prepuce orifice outward. The first elastic member 22 has high elasticity, so that the elastic dilator arm 2 has large expansion force, thereby improving the expansion capacity of the dilator on the prepuce orifice, and the smaller the prepuce orifice is, the greater the expansion force it receives, showing a layer-by-layer adjustment effect. When the abutting part 211 of the dilator arm 21 abuts against the connecting plate 14, the elastic dilator arm 2 is in the limit position of outward opening. As shown in Figure 9As shown, the second end of the expansion arm 21 is provided with a outwardly protruding barb 212. Through the barb 212, it is beneficial to prevent the elastic expansion arm 2 from slipping off the prepuce orifice when expanding the prepuce orifice.

[0043] In Figures 11-16 the state, the operation of re-entering the elastic expansion arm 2 into the closed state includes: first, apply an external force to overcome the elastic force of the first elastic member 22, and then fold the second end of the plurality of expansion arms 21 inward, and the plurality of elastic expansion arms 2 rotate relative to the base 1 to move the abutting portion 211 outward. Then press the operating member 3 to compress the second elastic member 6 to deform, and the operating member 3 moves towards the base 1, the second limiting portion 32 cooperates with the first limiting portion 12 to keep the operating member 3 in the position close to the base 1, and the button portion 31 enters the cavity surrounded by the plurality of abutting portions 211, and the abutting portion 211 abuts against the button portion 31, and the elastic expansion arm 2 is kept in the closed state.

[0044] Through the prepuce expander, the elastic expansion arm 2 has a closed state and an open state, and when the elastic expansion arm 2 is in the closed state, the stability of the closed state can be maintained through the cooperation of the second limiting portion 32 on the operating member 3 and the first limiting portion 12 on the base 1, and the abutting action of the operating member 3 and the abutting portion 211 of the elastic expansion arm 2. And through the simple lifting operation of the operating member 3, the constraint of the first limiting portion 12 on the second limiting portion 32 is released and the abutting action of the operating member 3 on the abutting portion 211 is released, the elastic expansion arm 2 can be conveniently switched from the closed state to the open state, and the first elastic member 22 further increases the expansion ability of the elastic expansion arm 2, convenient to use, convenient to unlock, and improve the use safety and treatment effect.

[0045] Figures 11-16 It is a structural schematic diagram of the prepuce expander of the embodiment 2 of the present application. Referring to Figure 11 , the same reference numerals in embodiment 2 and embodiment 1 represent the same elements, which have similar functions, and can be understood by referring to the above explanation and description in embodiment 1.

[0046] The difference between embodiment 2 and embodiment 1 is that the structure of the limiting assembly is different. As Figure 12 and Figures 11-14As shown, in Embodiment 2, the limiting component includes a first limiting part 17 and a second limiting part 217. The first limiting part 17 is disposed on the inner wall of the mounting groove 15 of the base 1, and the second limiting part 217 is disposed on the pivot part 213 of the elastic expansion arm 2. Optionally, a second limiting part 217 is provided on each side of the pivot part 213 of the elastic expansion arm 2, and a first limiting part 17 is correspondingly provided on each side of the inner wall of the mounting groove 15. Therefore, for each elastic expansion arm 2, when it is held in a closed state by the action of the second limiting part 217 and the first limiting part 17, the forces on both sides of the elastic expansion arm 2 are symmetrically balanced, which is beneficial to improving the stability of the closed state. The first limiting part 17 and the second limiting part 217 can be selected as a boss, a protrusion, etc.

[0047] The following description, in conjunction with the accompanying drawings, details the switching between the closed and open states of the elastic expansion arm 2.

[0048] like Figures 13-16 As shown, when the elastic expansion arm 2 is in the closed state, the operating member 3 is held away from the base 1 by the elastic force of the second elastic member 6. The second ends of each expansion arm 21 are drawn inward, and the second limiting part 217 and the first limiting part 17 form an interference fit, holding the elastic expansion arm 2 in the closed state. The button part 31 of the operating member 3 is located above the abutting part 211 of the expansion arm 21 but does not act on the abutting part 211. In the closed state, the foreskin dilator can be inserted into the foreskin cavity. In the closed state, the first elastic member 22 is in an elastic deformation state, but the elastic force applied by the first elastic member 22 to the expansion arm 21 is insufficient to overcome the force of the fit between the first limiting part 17 and the second limiting part 217.

[0049] When the elastic expansion arm 2 is in the closed state, manually pressing down the operating member 3 moves the operating member 3 closer to the base 1. The button part 31 of the operating member 3 presses against the abutment part 211 of the expansion arm 21, causing the elastic expansion arm 2 to rotate relative to the connecting plate 14 until the second limiting part 217 disengages from the first limiting part 17. Under the elastic force of the first elastic member 22, the elastic expansion arm 2 continues to rotate relative to the connecting plate 14, and the second end of the expansion arm 21 expands outward, allowing the elastic expansion arm 2 to enter the... Figure 15 The shown open state expands the narrow foreskin opening outwards. When the abutment portion 211 of the expansion arm 21 abuts against the connecting plate 14, the elastic expansion arm 2 is at its extreme outward opening position. At this time, releasing the operating member 3 causes it to spring back upwards under the elastic force of the second elastic member 6, returning to a position away from the base 1, but this does not affect the open state of the elastic expansion arm 2.

[0050] exist ​In the closed state, the operation of returning the elastic expansion arm 2 to the closed state includes: applying an external force to overcome the elastic force of the first elastic member 22, folding the second end of the expansion arm 21 inward, and rotating the elastic expansion arm 2 relative to the base 1 to form a cooperation between the second limiting portion 217 and the first limiting portion 17, so as to keep the elastic expansion arm 2 in the closed state. In the process of folding the elastic expansion arm 2, only one elastic expansion arm 2 can be operated each time, so that each elastic expansion arm 2 enters the closed state in turn, or multiple elastic expansion arms 2 can be operated each time, so that multiple elastic expansion arms 2 enter the closed state at the same time.

[0051] Through the phimosis expander, the elastic expansion arm 2 has a closed state and an open state. When the elastic expansion arm 2 is in the closed state, the stability of the closed state can be maintained through the cooperation between the second limiting portion 217 on the elastic expansion arm 2 and the first limiting portion 17 on the base 1. And through the simple pressing operation of the operating member 3, the operating member 3 drives the elastic expansion arm 2 to move through the cooperation with the abutting portion 211, the constraint of the first limiting portion 17 on the second limiting portion 217 is released, the elastic expansion arm 2 can be conveniently switched from the closed state to the open state, the first elastic member 22 further increases the expansion capacity of the elastic expansion arm 2, the use is convenient, the unlocking is convenient, and the use safety and the treatment effect are improved.

[0052] In summary, the phimosis expander provided by the utility model can be stably maintained in the closed state through the interference limiting cooperation between the elastic expansion arm and the base or the operating member and the base. And through the movement of the control operating member relative to the base, the elastic expansion arm can be conveniently switched from the closed state to the open state, the use is convenient, the unlocking is convenient, and the use safety and the treatment effect are improved.

[0053] The above is a further detailed description of the present application in combination with a specific preferred embodiment, and the specific implementation of the present application cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the present application belongs, some simple deductions or replacements can be made without departing from the concept of the present application, and all of them should be regarded as falling within the protection scope of the present application.

Claims

1. A prepuce dilator, comprising a base, an operating member movably arranged on a first side of the base, and a plurality of elastic dilating arms arranged on the base and extending towards a second side opposite to the base, the plurality of elastic dilating arms being configured to rotate relative to the base to switch between an open state and a closed state, characterized in that, Also comprising: a limiting assembly, comprising a first limiting part and a second limiting part, the first limiting part is arranged on the base, and the second limiting part is arranged on the plurality of elastic expansion arms or the operating member; wherein the first limiting part and the second limiting part cooperate to constrain the plurality of elastic expansion arms to be in the closed state; operating the operating member, the first limiting part and the second limiting part are disengaged, and the plurality of elastic expansion arms enter the open state from the closed state.

2. The prepuce dilator according to claim 1, wherein The second limiting part is arranged on the operating member; the first limiting part and the second limiting part cooperate to keep the operating member close to the base; when the operating member is operated to move away from the base, the first limiting part and the second limiting part are disengaged.

3. The prepuce dilator according to claim 2, wherein The base comprises a connecting plate, the elastic expansion arm is pivotally connected with the connecting plate, and the operating member comprises a button part; The elastic expansion arm comprises an abutting part, and when the elastic expansion arm is in the closed state, the abutting part of the elastic expansion arm abuts against the button part of the operating member; After the operating member is operated to separate the button part from the abutting part, the abutting part of the elastic expansion arm is close to the connecting plate, and the elastic expansion arm enters the open state.

4. The prepuce dilator according to claim 3, wherein The base is also provided with a matching part, and the first limiting part is arranged on the outer wall of the matching part; the button part is provided with a first accommodating cavity, and the second limiting part is arranged on the inner wall of the first accommodating cavity; When the operating member is close to the base, the part of the matching part provided with the first limiting part is located inside the first accommodating cavity, and the first limiting part and the second limiting part form an interference fit.

5. The prepuce dilator according to claim 1, wherein The second limiting part is arranged on the elastic expansion arm, and the first limiting part and the second limiting part cooperate to constrain the plurality of elastic expansion arms to be in the closed state; When the operating member is operated to move close to the base, the operating member presses the elastic expansion arm to rotate the elastic expansion arm relative to the base, and the first limiting part and the second limiting part are disengaged.

6. The prepuce dilator of claim 5, wherein, The base comprises a plurality of mounting grooves, the elastic expansion arm is pivotally mounted in the mounting groove, and the two sides of the elastic expansion arm are respectively provided with a second limiting part; the inner wall of the mounting groove is provided with a first limiting part at a position opposite to the second limiting part.

7. The prepuce dilator of claim 5, wherein The operating member comprises a first accommodating cavity, the base comprises a matching part, and the matching part is at least partially located in the first accommodating cavity.

8. The prepuce dilator of claim 1, wherein, Also comprising a sliding structure, the sliding structure is fixedly connected with the operating member, the base is provided with a second accommodating cavity for accommodating the sliding structure, and the sliding structure can drive the operating member to move away from or close to the base.

9. The prepuce dilator of claim 1, wherein, The elastic expansion arm comprises a first elastic member and an expansion arm, and the first elastic member is configured to provide an elastic force to the expansion arm to make it expand outward.

10. The prepuce dilator of claim 1, wherein, Also comprising a second elastic member, the second elastic member is configured to provide an elastic force to the operating member to make it move away from the base.

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