A four-winged vaginal dilator

Abstract

The utility model relates to a four-wing vaginal dilator, including lower lobe spare, upper lobe spare and two side wings, the upper lobe spare is rotatably connected lower lobe spare through first pivot, and the upper lobe spare and lower lobe spare switch between the two states of opening and closing, two side wings are rotatably connected in the opposite sides of lower lobe spare through second pivot, the included angle of the axis of first pivot and the axis of second pivot is acute angle in projection plane, when the upper lobe spare and lower lobe spare are in closed state, two side wings are in the accommodating cavity formed by the upper lobe spare and lower lobe spare. In the closed state, the side wing contracts in the accommodating cavity of the upper lobe spare and lower lobe spare, reduces the knock of usual time, improves the service life, and this rotation mode can avoid the inside collision of side wing and lower lobe spare, and the final stop position of side wing is in the middle position of the opening formed by the upper lobe spare and lower lobe spare, makes the clearance between the upper lobe spare, lower lobe spare and side wing be approximately same, guarantees the uniformity of lateral shielding.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically to a four-winged vaginal dilator. Background Technology

[0002] Currently, in gynecological diagnosis and treatment, a two-bladed vaginal speculum that opens and closes is commonly used as an auxiliary examination instrument. The two-bladed vaginal speculum has two blades, one above the other. The doctor inserts the instrument into the patient's vagina after bringing the blades together, and then opens them to observe the affected area. However, in practice, traditional two-bladed speculum devices may not perfectly match the designer's intended vaginal conditions due to individual patient differences. This can lead to vaginal tissue from both sides getting into the gap left after the blades are opened, affecting the doctor's examination and operation.

[0003] Therefore, some doctors use four-winged vaginal speculum with lateral wings to open the patient's vaginal passage. Currently, the lateral wings of these four-winged speculum are generally located on the outside of the upper and lower lobes. After opening the upper and lower lobes, the doctor presses on the rear ends of the two lateral wings, causing them to open to the left and right, thus blocking the lateral vaginal tissue. For example, a four-wing vaginal dilator disclosed in patent 202011020141.1 includes an upper dilator, which includes an upper wing and a handle integral with the upper wing and extending rearward along one end of the upper wing; a lower dilator, which includes a lower wing and a handle integral with the lower wing and extending downward from the rear end of the lower wing; the two sides of the rear ends of the upper wing and the lower wing are connected by a pin; the handle and the handle are engaged by a dilator positioning device; and a positioning sleeve, which is rotatably connected to the rear end of the upper wing and the side dilator. The four-wing vaginal dilator also includes a first dilator positioning device consisting of a hook-and-loop dilator positioning self-destruct device, and a second dilator positioning device consisting of a second positioning hook with a second handle at the rear end of the side dilator and a second positioning buckle on the outside of the positioning sleeve.

[0004] The wings of this four-winged vaginal speculum are located on the outside, making them susceptible to impact. Furthermore, since the wings are located on the lower leaf, they unfold horizontally to the left and right sides, with the unfolded position biased towards the lower leaf. As a result, the gaps formed between the wings and the upper and lower leaves are uneven, with the upper gap being larger than the lower gap, leading to poor coverage in areas with larger gaps. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a four-wing vaginal speculum. In the closed state, the side wings retract into the receiving cavity of the upper and lower leaf pieces, reducing bumps and collisions and improving service life. Moreover, the side wings of the four-wing vaginal speculum finally stop at the middle position of the opening formed by the upper and lower leaf pieces, so that the gaps between the upper leaf piece, the lower leaf piece and the side wings are approximately the same, ensuring the uniformity of lateral shielding.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a four-winged vaginal speculum, comprising:

[0008] Lower leaf piece;

[0009] An upper leaf member is rotatably connected to a lower leaf member via a first rotating shaft, and the upper leaf member and the lower leaf member can switch between open and closed states.

[0010] Two side wings are rotatably connected to opposite sides of the lower leaf member via a second rotating shaft. The angle between the axis of the first rotating shaft and the axis of the second rotating shaft on the projection plane is an acute angle. When the upper leaf member and the lower leaf member are in a closed state, the two side wings are located within the receiving cavity formed by the upper leaf member and the lower leaf member.

[0011] Preferably, the lower leaf has two opposing mounting holes, and a spring-loaded component is provided in the mounting holes. The second rotating shaft is fitted into the mounting holes and connected to the spring-loaded component.

[0012] Preferably, the spring-loaded component is an elastic pin, and a pin hole is formed on the second rotating shaft. The two ends of the elastic pin are respectively fixed to the mounting hole and the pin hole.

[0013] Preferably, the mounting hole includes a rotating section and a fixed section. The rotating section is circular, and the fixed section and the pin hole are polygonal. The second rotating shaft is fitted inside the rotating section, and one end of the elastic pin is fixed inside the fixed section.

[0014] Preferably, each of the two side wings is provided with a first limiting member, and the lower leaf is provided with two second limiting members that cooperate with the first limiting members.

[0015] Preferably, the lower leaf is connected to a gripper.

[0016] Preferably, the gripping member has an observation cavity that communicates with the receiving cavity, and the observation cavity is used to place an observation instrument.

[0017] Preferably, the four-winged vaginal speculum further includes:

[0018] The pressing member is connected to the upper leaf member, and the two side wings are slidably connected to the pressing member.

[0019] Preferably, an observation port is formed between the pressing member and the upper leaf member.

[0020] Preferably, the two flanks are bent in opposite directions.

[0021] This utility model has at least the following beneficial effects:

[0022] The two side wings of this invention are disposed within the receiving cavities of the upper and lower blades, and the rotating shafts of the side wings are installed at an inward tilt. During the opening process, the two side wings can rotate obliquely upward. In the closed state, the side wings retract within the receiving cavities of the upper and lower blades, reducing normal bumps and impacts and improving service life.

[0023] This rotation method avoids collisions between the side wings and the inner side of the lower blade, and the side wings eventually stop at the middle of the opening formed by the upper and lower blades, making the gaps between the upper blade, lower blade, and side wings approximately the same, thus ensuring the uniformity of lateral shielding. Attached Figure Description

[0024] Figure 1 This is a front view of the four-winged vaginal dilator in its open state according to an embodiment of the present invention;

[0025] Figure 2 This is a side view of the four-winged vaginal dilator in its open state according to an embodiment of the present invention;

[0026] Figure 3 This is a front view of the four-winged vaginal speculum in the closed state according to an embodiment of the present invention;

[0027] Figure 4 This is a side view of the four-winged vaginal dilator in its closed state according to an embodiment of the present invention;

[0028] Figure 5 An exploded view of one side wing of the four-wing vaginal speculum according to an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the side wings of the four-winged vaginal speculum according to an embodiment of the present invention;

[0030] Figure 7 This is a schematic diagram of the upper leaf and pressing component of the four-wing vaginal dilator according to an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the lower leaf and holding part of the four-wing vaginal dilator according to an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the structure of the spring-loaded component of the four-wing vaginal dilator according to an embodiment of the present invention;

[0033] Figure 10 This is a schematic diagram of the structure of a single side wing of the four-wing vaginal speculum according to an embodiment of the present invention.

[0034] Figure 11This is a bottom view of the lower leaf and the holding part of the four-winged vaginal dilator according to an embodiment of the present utility model;

[0035] Reference numerals: a) included angle; 1) lower leaf; 2) upper leaf; 3) first rotating shaft; 4) side wing; 5) second rotating shaft; 6) receiving cavity; 7) mounting hole; 8) springback component; 9) pin hole; 10) rotating section; 11) fixed section; 12) first limiting component; 13) second limiting component; 14) holding component; 15) observation cavity; 16) pressing component; 17) observation port. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0037] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "connected" or "linked," etc., are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up," "down," "left," "right," etc., are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0038] The embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0039] like Figure 1-7 As shown, an embodiment of this utility model provides a four-winged vaginal speculum, including a lower leaf 1, an upper leaf 2, and two side wings 4. The upper leaf 2 is rotatably connected to the lower leaf 1 via a first rotating shaft 3, and the upper leaf 2 and the lower leaf 1 can switch between open and closed states. The two side wings 4 are rotatably connected to opposite sides of the lower leaf 1 via a second rotating shaft 5, and the angle α between the axis of the first rotating shaft 3 and the axis of the second rotating shaft 5 on the projection plane is an acute angle. When the upper leaf 2 and the lower leaf 1 are in the closed state, the two side wings 4 are located within the receiving cavity 6 formed by the upper leaf 2 and the lower leaf 1.

[0040] The upper leaf 2 and the lower leaf 1 are formed as arc surfaces. When they are closed, a receiving cavity 6 is formed between them, and the two side wings 4 are retracted into the receiving cavity 6. When they are opened, the ends of the two side wings 4 facing the doctor are subjected to pressure and begin to rotate. Figure 5 As shown, the angle α between the axis of the first rotating shaft 3 and the axis of the second rotating shaft 5 projected in the direction facing the patient is an acute angle. This means the distance between the upper ends of the two second rotating shafts 5 is greater than the distance between their lower ends. Therefore, when the doctor-facing ends of the two side wings 4 are subjected to downward pressure, the patient-facing ends will rotate diagonally upwards. The length of the side wings 4 and the angle α between the second rotating shaft 5 and the first rotating shaft 3 can be set according to the dimensions of the upper leaf 2 and the lower leaf 1, ensuring that the final opening position of the side wings 4 is in the middle of the gap between the upper leaf 2 and the lower leaf 1. The downward pressure on the side wings 4 can be applied by the doctor's hand or by the structure of the four-wing vaginal speculum itself.

[0041] In summary, the two side wings 4 of the four-wing vaginal speculum of this embodiment are disposed within the receiving cavity 6 of the upper leaf 2 and the lower leaf 1, and the rotation axis of the side wings 4 is inclined inward. During the opening process, the two side wings 4 can rotate obliquely upward. In the closed state, the side wings 4 retract into the receiving cavity 6 of the upper leaf 2 and the lower leaf 1, reducing bumps and collisions and improving service life. This rotation method can avoid collision between the side wings 4 and the inner side of the lower leaf 1, and the final stopping position of the side wings 4 is at the middle position of the opening formed by the upper leaf 2 and the lower leaf 1, so that the gaps between the upper leaf 2, the lower leaf 1 and the side wings 4 are approximately the same, ensuring uniform lateral obstruction.

[0042] like Figure 8-9 As shown, in the preferred embodiment, the lower leaf 1 is provided with two opposing mounting holes 7, and a spring-loaded component 8 is provided in the mounting holes 7. The second rotating shaft 5 is fitted into the mounting holes 7 and connected to the spring-loaded component 8.

[0043] The second rotating shaft 5 rotates against the inner wall within the mounting hole 7. In the retracted state, the spring-loaded component 8 is in its original state. When the side wing 4 is subjected to external pressure and unfolds outward, the spring-loaded component 8 deforms under the drive of the second rotating shaft 5. When the side wing 4 loses external pressure, the spring-loaded component 8 drives the side wing 4 back to the retracted state. The mounting hole 7 ensures that the second rotating shaft 5 can rotate stably against the inner wall during rotation, thereby ensuring the stability of the side wing 4. The spring-loaded component 8 not only ensures the stability of the side wing 4 in the retracted state but also improves the convenience of the retraction operation.

[0044] In a preferred embodiment, the spring-loaded component 8 is an elastic pin, and a pin hole 9 is formed on the second rotating shaft 5. The two ends of the elastic pin are respectively fixed to the mounting hole 7 and the pin hole 9.

[0045] During installation, simply insert both ends of the elastic pin into the mounting hole 7 and the pin hole 9, and further secure them using adhesive or heat fusion. The installation process is simple and convenient. The mounting hole 7 and the pin hole 9 can be designed as a through-hole.

[0046] In a preferred embodiment, the mounting hole 7 includes a rotating section 10 and a fixed section 11. The rotating section 10 is circular, while the fixed section and pin hole 9 are polygonal. The second rotating shaft 5 is fitted inside the rotating section 10, and one end of the elastic pin is fixed inside the fixed section.

[0047] The rotating section 10 is circular, while the pin hole 9 and the fixed section are polygonal, thus ensuring that the two ends of the elastic pin do not rotate relative to each other while the second rotating shaft 5 rotates. Of course, in addition to polygons, other non-circular structures can also be used, as long as relative rotation does not occur.

[0048] like Figure 10 As shown, in the preferred embodiment, the two side wings 4 are respectively provided with a first limiting member 12, and the lower leaf 1 is provided with two second limiting members 13 that cooperate with the first limiting member 12.

[0049] The first limiting member 12 and the second limiting member 13 can be configured as protrusions. The two second limiting members 13 are located on the inner side of the two side wings 4 to limit the position of the side wings 4 in the retracted state and prevent the two side wings 4 from colliding.

[0050] In a preferred embodiment, the lower leaf 1 is connected to a gripper 14.

[0051] The gripper 14 is connected to the end of the lower leaf 1 facing the doctor, facilitating the doctor's operation. The gripper 14 and the lower leaf 1 can be integrally formed.

[0052] like Figure 11 As shown, in a preferred embodiment, the gripper 14 has an observation cavity 15 that communicates with the receiving cavity 6, and the observation cavity 15 is used to place the observation instrument.

[0053] After the doctor inserts the four-winged vaginal speculum into the patient's vagina and opens it, the observation instrument can be placed into the observation cavity 15. The camera of the observation instrument is set towards the inside of the receiving cavity 6 to obtain internal images.

[0054] In a preferred embodiment, the four-winged vaginal dilator further includes a pressing member 16, which is connected to the upper leaf member 2, and the two side wings 4 are slidably connected to the pressing member 16.

[0055] The doctor-facing ends of the side wings 4 rest against the pressing element 16. When the doctor presses down on the pressing element 16, the upper leaf 2 and lower leaf 1 open simultaneously, and the pressure-receiving ends of the two side wings 4 slide along the pressing element 16 in opposite directions, opening the end facing the patient. When the doctor releases the pressing element 16, the pressure-receiving ends of the two side wings 4 slide along the pressing element 16 in opposite directions, closing the end facing the patient. This pressing structure ensures that all four wings open and close simultaneously, greatly improving the ease of operation for doctors.

[0056] In a preferred embodiment, an observation port 17 is formed between the pressing member 16 and the upper leaf member 2.

[0057] The observation port 17 is aligned with the receiving cavity 6, allowing doctors to observe the internal condition more directly through the observation port 17.

[0058] In a preferred embodiment, the two side wings are bent in opposite directions.

[0059] The patient-facing ends of the upper leaf 2 and lower leaf 1 are usually narrower, and the patient-facing ends of the two side wings 4 are bent inward to ensure that the side wings 4 do not collide with the inner walls of the upper leaf 2 and lower leaf 1.

[0060] The above embodiments are used to further illustrate the present invention, but do not limit the present invention to these specific embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be understood as being within the protection scope of the present invention.

Claims

1. A four-winged vaginal speculum, characterized in that, include: Lower leaf component (1); Upper leaf (2), which is rotatably connected to lower leaf (1) via a first rotating shaft (3), and the upper leaf (2) and lower leaf (1) switch between open and closed states; Two side wings (4) are rotatably connected to opposite sides of the lower blade (1) via a second rotating shaft (5). The angle (a) between the axis of the first rotating shaft (3) and the axis of the second rotating shaft (5) on the projection plane is an acute angle. When the upper blade (2) and the lower blade (1) are in a closed state, the two side wings (4) are located in the receiving cavity (6) formed by the upper blade (2) and the lower blade (1).

2. The four-winged vaginal speculum according to claim 1, characterized in that, The lower leaf (1) is provided with two opposite mounting holes (7), and a spring-loaded component (8) is provided in the mounting holes (7). The second rotating shaft (5) is fitted in the mounting holes (7) and connected to the spring-loaded component (8).

3. The four-winged vaginal speculum according to claim 2, characterized in that, The spring-loaded component (8) is an elastic pin, and a pin hole (9) is formed on the second rotating shaft (5). The two ends of the elastic pin are respectively fixed to the mounting hole (7) and the pin hole (9).

4. The four-winged vaginal speculum according to claim 3, characterized in that, The mounting hole (7) includes a rotating section (10) and a fixed section (11). The rotating section (10) is circular, and the fixed section and the pin hole (9) are polygonal. The second rotating shaft (5) is fitted inside the rotating section (10), and one end of the elastic pin is fixed inside the fixed section.

5. The four-winged vaginal speculum according to claim 1 or 2, characterized in that, The two side wings (4) are respectively provided with a first limiting member (12), and the lower leaf (1) is provided with two second limiting members (13) that cooperate with the first limiting member (12).

6. The four-winged vaginal speculum according to claim 1, characterized in that, The lower leaf (1) is connected to a gripper (14).

7. The four-winged vaginal speculum according to claim 6, characterized in that, The grip (14) has an observation cavity (15) that communicates with the receiving cavity (6), and the observation cavity (15) is used to place an observation instrument.

8. The four-winged vaginal speculum according to claim 1 or 6, characterized in that, Also includes: Pressing member (16), which is connected to the upper leaf member (2), and the two side wings (4) are slidably connected to the pressing member (16).

9. The four-winged vaginal speculum according to claim 8, characterized in that, An observation port (17) is formed between the pressing member (16) and the upper leaf member (2).

10. The four-winged vaginal speculum according to claim 1, characterized in that, The two flanks (4) bend in opposite directions.

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