Gynecological four-claw speculum convenient to use

Abstract

The application relates to a gynecological four-claw vaginal dilator which is convenient to use, comprising a base ring, a plurality of expansion rods, a fitting ring and an adjusting slide plate, a pressing plate is rotationally connected in the adjusting slide plate through an elastic element, a locking clamping block is movably arranged on the pressing plate, a plurality of clamping grooves matched with the locking clamping block are arranged in the base ring, the locking clamping block passes through the clamping grooves and presses the fitting ring, the expansion rod position adjusting and locking operation is simple and fast, the fitting ring is pressed tightly on the patient's body surface after being locked, and the whole is prevented from being displaced, a rotating sleeve rotationally connected with the expansion rod is fixed at the end of the adjusting slide plate, a plurality of hinged plates are rotationally connected on the expansion rod, an angle adjusting assembly is rotationally connected on the adjusting slide plate through a control rod, the angle can be independently adjusted, and the anatomical forms of different patients can be adapted; the gynecological four-claw vaginal dilator further comprises a protective ring, a protective baffle is rotationally connected on the protective ring, the protective baffle is used for clamping the angle adjusting assembly and the rotating sleeve, and other instruments are prevented from touching the internal adjusting components by mistake, and the operation safety is improved.

Description

Technical Field

[0001] This invention relates to the field of obstetric and gynecological vaginal speculum technology, specifically to an easy-to-use four-claw vaginal speculum for obstetrics and gynecology. Background Technology

[0002] Vaginal speculums are commonly used instruments in obstetric and gynecological clinical examinations and treatments, used to dilate the vagina to expose the cervix and vaginal walls. Traditional vaginal speculums are mostly two-piece or three-piece structures, with the dilator rod opened by manually squeezing the handle. However, in the use of some existing vaginal speculums, the position and angle adjustments of the dilator rod are often independent and cumbersome to operate. Medical staff need to adjust multiple parts separately, making it difficult to achieve quick and accurate positioning. At the same time, once the dilator rod is fixed, it is easy to loosen due to changes in patient position or instrument contact, affecting the stability and safety of the examination or treatment process. In addition, some vaginal speculums lack effective protection for the internal adjustment mechanism. When using other medical instruments for in-depth operation, the adjustment parts may be accidentally touched, resulting in an unexpected change in the dilation angle, which poses certain clinical risks.

[0003] Therefore, a user-friendly four-claw vaginal speculum for obstetrics and gynecology is proposed to address the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide an easy-to-use four-claw vaginal speculum for obstetrics and gynecology.

[0005] The objective of this invention is achieved through the following technical solution: a user-friendly four-claw vaginal speculum for obstetrics and gynecology, comprising: a base ring and multiple dilating rods movable on the base ring; a fitting ring rotatably connected to the bottom of the base ring; an adjusting slide plate rotatably passing through the base ring; a pressing plate rotatably connected to the adjusting slide plate via an elastic element; a locking block rotatably provided on the pressing plate; multiple slots in the base ring engaging with the locking block; the locking block passing through the slots presses against the fitting ring; the dilating rod position adjustment and locking operations are simple and quick, and after locking, the fitting ring is simultaneously pressed tightly against the patient's body surface to prevent overall displacement; a rotating sleeve rotatably connected to the dilating rod is fixed at the end of the adjusting slide plate; multiple hinge plates are rotatably connected to the dilating rod; an angle adjustment component is rotatably connected to the adjusting slide plate via a control rod, the angle can be adjusted independently to adapt to different patients' anatomical shapes; and a protective ring is also included, on which a protective baffle is rotatably connected, the protective baffle being used to engage the angle adjustment component and the rotating sleeve.

[0006] Among them, the protective ring and protective baffle prevent other instruments from accidentally touching the internal adjustment components, thus improving operational safety.

[0007] As a further description of the above technical solution: The adjusting slide plate has an inclined groove for the pressing plate to rotate, and the end of the pressing plate is equipped with a pressing handle with an anti-slip effect. The inclined groove ensures that the pressing plate moves flexibly and avoids jamming. The anti-slip pressing handle improves the operating feel and reliability, and reduces adjustment failures caused by slippage.

[0008] As a further description of the above technical solution: The pressing plate has a movable groove for the locking blocks to move. The elastic element includes an elastic sheet that moves within the movable groove and is connected to the two locking blocks. A compression spring is connected between the elastic sheet and the adjusting slide plate. The two locking blocks move synchronously, increasing the locking contact area and making the locking more stable. The compression spring and the elastic sheet work together to provide a uniform and reliable reset force, preventing the locking blocks from getting stuck or not in place.

[0009] As a further description of the above technical solution: The hinge plate is hinged to a connecting post at one end, and a lead screw is rotatably connected to the end of the connecting post. A threaded sleeve that is threadedly connected to the lead screw is fixedly connected to the adjusting slide plate. The threaded transmission has self-locking properties, and the angle will not change due to slight external force after adjustment.

[0010] As a further description of the above technical solution: A T-shaped slider is fixedly connected to the connecting column, and a T-shaped groove is provided on the adjusting slide to slide with the T-shaped slider, so as to ensure the smooth movement of the connecting column, prevent the hinge plate from shifting laterally, and make the angle adjustment accurate and reliable.

[0011] As a further description of the above technical solution: The control rod has a convex cross-section in the middle, and anti-disengagement rods are fixedly connected to both ends of the control rod. The outer surface of the lead screw end is provided with a storage groove that engages with the anti-disengagement rod, avoiding the trouble of repeatedly adjusting the hand position in traditional operation and realizing continuous and labor-saving angle adjustment.

[0012] As a further description of the above technical solution: The protective baffle has a U-shaped structure. The end of the protective baffle is rotatably connected to the protective ring via a rotating shaft. A friction damping roller that frictionally engages with the rotating shaft is fixedly connected to the protective ring. The angle of the protective baffle is adjustable and self-locking, which makes it easy to adjust the protection range according to different operating requirements. In addition, the U-shaped structure can partially enclose the internal components, providing more comprehensive protection against contact.

[0013] As a further description of the above technical solution: The protective ring is connected to the base ring by a flexible connecting strip. The flexible connecting strip is located between two adjacent adjusting slides to prevent the protective ring from being easily lost when stored alone. The flexible connecting strip is located in the gap between the adjusting slides and does not affect the normal operating space.

[0014] As a further description of the above technical solution: The top of the threaded sleeve is fixedly connected to a push rod that presses against the protective baffle. The push rod is a metal push rod. A magnetic plate that magnetically engages with the push rod is provided on the inner side of the protective baffle. The magnetic adsorption ensures that the protective baffle can be stably maintained in the closed or open position, preventing accidental shaking during use.

[0015] As a further description of the above technical solution: The fitting ring has a groove that conforms to the shape of the human body, and a rubber protective layer is provided at the end of the fitting ring away from the base ring to improve the fit between the fitting ring and the patient's body, increase comfort, and prevent slippage.

[0016] Compared with the prior art, the advantages of the present invention are as follows: This invention, through the engagement of an adjusting slide plate, a pressing plate, an elastic element, and locking blocks with multiple slots on the base ring, allows medical personnel to adjust the position of the dilator rod by simply releasing the pressing plate, causing the locking blocks to automatically engage with the corresponding slots. Simultaneously, some locking blocks pass through the slots and press against the fitting ring, achieving a dual locking of the dilator rod position and the relative angle between the base ring and the fitting ring. This method is simple to operate, provides a stable fixation, effectively prevents accidental loosening during use, and improves the ease of operation and clinical safety of the vaginal speculum. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a bottom view of the structure of the present invention; Figure 3 This is a schematic diagram of the cooperation structure between the protective baffle and the protective ring of the present invention; Figure 4 This is a schematic diagram of the disassembled structure of the adjusting slide and the base ring of the present invention; Figure 5 This is a schematic diagram of the cooperation structure between the adjusting slide and the base ring of the present invention; Figure 6 This is a schematic diagram of the disassembled structure of the fitting ring and the base ring of the present invention; Figure 7 This is a cross-sectional structural diagram of the adjusting slide and the base ring of the present invention; Figure 8 This is a partial cross-sectional structural schematic diagram of the adjusting slide plate of the present invention; Figure 9 This is a partial cross-sectional structural diagram of the pressing plate of the present invention; Figure 10 This is a schematic diagram of the disassembled structure of the base ring, the fitting ring, and the adjusting slide plate of the present invention; Figure 11 This is a schematic diagram of the disassembled structure of the pressing plate and the adjusting slide plate of the present invention; Figure 12 This is a schematic diagram showing the disassembled structure of the rotating sleeve and expansion rod, the T-shaped slider and the T-shaped groove of the present invention; Figure 13 This is a schematic diagram of the disassembled structure of the control rod and the lead screw end of the present invention.

[0018] Labeling Explanation: 1. Base Ring; 2. Expansion Rod; 3. Fitting Ring; 4. Adjusting Slide Plate; 5. Pressing Plate; 6. Locking Block; 7. Slot; 8. Rotating Sleeve; 9. Hinge Plate; 10. Control Rod; 11. Protective Ring; 12. Protective Baffle; 13. Inclined Slot; 14. Pressing Handle; 15. Movable Slot; 16. Elastic Sheet; 17. Compression Spring; 18. Connecting Column; 19. Lead Screw; 20. Threaded Sleeve; 21. T-Slider; 22. Anti-detachment Rod; 23. Storage Slot; 24. Rotating Shaft; 25. Friction Damping Roller; 26. Flexible Connecting Belt; 27. Top Rod; 28. Mating Slot. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments: like Figures 1-13 The diagram shows an embodiment of a user-friendly four-claw vaginal speculum provided by the present invention, comprising: a base ring 1 and multiple dilating rods 2 movable on the base ring 1; a fitting ring 3 rotatably connected to the bottom of the base ring 1; four through slots on the base ring 1; four adjusting slide plates 4 movably passing through the four through slots; a pressing plate 5 rotatably connected to the adjusting slide plate 4 via an elastic element; a locking block 6 movably provided on the pressing plate 5; multiple slots 7 inside the base ring 1 that engage with the locking blocks 6; the slots 7 penetrate the bottom of the base ring 1; and two sets of locking blocks 6 passing through the slots 7 press against the fitting ring. 3. The remaining two sets of locking blocks 6 pass through the slots 7 to fix the position between the adjusting slide plate 4 and the base ring 1. The top of the fitting ring 3 is slidably connected to the base ring 1. The end of the adjusting slide plate 4 is fixed with a rotating sleeve 8 that is rotatably connected to the expansion rod 2. Multiple hinge plates 9 are rotatably connected to the expansion rod 2. An angle adjustment component is rotatably connected to the adjusting slide plate 4 through the control rod 10. The angle adjustment component allows the angle of the expansion rod 2 to rotate and change without affecting the adjustment of the position of the adjusting slide plate 4. It also includes a protective ring 11. A protective baffle 12 is rotatably connected to the protective ring 11. The protective baffle 12 is used to lock the angle adjustment component and the rotating sleeve 8. First, the bottom of the base ring 1 is rotatably connected to the fitting ring 3, which can fit the patient's lower body and rotate to adjust its position; Then, the adjustable slide plate 4 moves through the base ring 1, and the inside of the slide plate 4 is rotatably connected to the pressing plate 5 through an elastic element (such as a compression spring 17). The pressing plate 5 is movably equipped with a locking block 6. When the pressing plate 5 is pressed, the locking block 6 disengages from the slot 7 on the base ring 1. At this time, the adjustable slide plate 4 can be moved, thereby driving the expansion rod 2 to move (connected through the rotating sleeve 8), so as to realize the adjustment of the expansion diameter. Finally, after releasing the pressing plate 5, the elastic element causes the pressing plate 5 to reset, the locking block 6 is inserted into the corresponding slot 7, and part of the locking block 6 passes through the slot 7 to directly press against the fitting ring 3, thereby realizing the locking of the adjusting slide plate 4 and the base ring 1 and the relative fixation of the base ring 1 and the fitting ring 3.

[0020] The angle adjustment component can adjust the tilt angle of the expansion rod 2 by rotating the control rod 10.

[0021] Furthermore, the protective baffle 12 on the protective ring 11 is used to engage the angle adjustment component and the rotating sleeve 8, forming a protective structure.

[0022] It is worth noting that the width of the locking block 6 is smaller than the width of the slot 7, and the end of the locking block 6 has a chamfered structure, which facilitates the smooth insertion of the locking block 6 into the slot 7. Since the size of the locking block 6 is smaller than that of the slot 7, although the locking block 6 has some movement in the slot 7, the range of movement is small and does not affect the expansion effect of the expansion rod 2.

[0023] It is worth noting that: the adjusting slide plate 4 has an inclined groove 13 for the pressing plate 5 to rotate, and the pressing plate 5 has a pressing handle 14 with anti-dislodgement effect at the end. The inclined groove 13 provides rotation space for the pressing plate 5, so that the pressing plate 5 can swing smoothly within a certain angle. The anti-dislodgement effect on the pressing handle 14 can prevent the finger from slipping when pressing, and facilitate stable force application.

[0024] The pressing plate 5 in this application has a movable groove 15 for the locking blocks 6 to move. The elastic element includes an elastic sheet 16 that moves within the movable groove 15 and is connected to the two locking blocks 6. A compression spring 17 is connected between the elastic sheet 16 and the adjusting slide plate 4. In this application, the number of compression springs 17 and the magnitude of their elastic force can be increased or adjusted according to actual needs to ensure the elastic force. The movable groove 15 allows the locking blocks 6 to move within it. The elastic sheet 16 connects to both locking blocks 6. One end of the compression spring 17 is connected to the elastic sheet 16, and the other end is connected to the adjusting slide plate 4. When the pressing plate 5 is pressed, the compression spring 17 is compressed, and the elastic sheet 16 drives the locking blocks 6 to retract. After being released, the compression spring 17 pushes the elastic sheet 16, causing the locking blocks 6 to extend and engage with the groove 7.

[0025] The hinge plate 9 is hinged to a connecting post 18 at one end, and a lead screw 19 is rotatably connected to the end of the connecting post 18. A threaded sleeve 20 that is threadedly connected to the lead screw 19 is fixedly connected to the adjusting slide plate 4. When the lead screw 19 rotates in the threaded sleeve 20, it will move axially, driving the connecting post 18 and the hinge plate 9 to move, thereby changing the angle of the expansion rod 2.

[0026] The connecting column 18 is fixedly connected to a T-shaped slider 21, and the adjusting slide plate 4 is provided with a T-shaped groove that slides with the T-shaped slider 21. The T-shaped slider 21 is embedded in the T-shaped groove, which restricts the connecting column 18 to move linearly along the length direction of the adjusting slide plate 4 and prevents it from rotating or swaying.

[0027] It is worth noting that the control rod 10 has a convex cross-section in the middle, and anti-detachment rods 22 are fixedly connected to both ends of the control rod 10. The outer surface of the end of the lead screw 19 has a storage groove 23 that engages with the anti-detachment rod 22. The control rod 10 can slide axially: when one anti-detachment rod 22 is inserted into the storage groove 23 of the lead screw 19, rotating the control rod 10 will drive the lead screw 19 to rotate. The convex cross-section facilitates hand-held force application; when it is necessary to change direction, pull out the control rod 10 and insert the other anti-detachment rod 22 into the storage groove 23, and it can continue to rotate in the same direction without interference.

[0028] The protective baffle 12 in this application has a U-shaped structure. The end of the protective baffle 12 is rotatably connected to the protective ring 11 via a rotating shaft 24. A friction damping roller 25 that frictionally engages with the rotating shaft 24 is fixedly connected to the protective ring 11. The U-shaped protective baffle 12 can rotate around the rotating shaft 24. Friction is generated between the friction damping roller 25 and the rotating shaft 24, allowing the protective baffle 12 to stay at any angle without swinging freely.

[0029] The protective ring 11 is connected to the base ring 1 via a flexible connecting strip 26. The flexible connecting strip 26 is located between two adjacent adjusting slide plates 4. The flexible connecting strip 26 flexibly connects the protective ring 11 to the base ring 1 to prevent the protective ring 11 from being lost and does not hinder the movement of the adjusting slide plate 4.

[0030] The top of the threaded sleeve 20 is fixedly connected to a push rod 27 that presses against the protective baffle 12. The push rod 27 is a metal push rod. A magnetic plate that magnetically engages with the push rod 27 is provided on the inner side of the protective baffle 12. Through the action of the magnetic plate and the push rod 27, the positions of the protective baffle 12 and the protective ring 11 are ensured. When the protective baffle 12 is flipped to the working position, the push rod 27 contacts the inner side of the protective baffle 12, and the magnetic plate and the push rod 27 attract each other, providing auxiliary fixing force.

[0031] The fitting ring 3 in this application has a fitting groove 28 that matches the shape of the human body. The end of the fitting ring 3 away from the base ring 1 is provided with a rubber protective layer. The arc-shaped contour of the fitting groove 28 matches the shape of the human groin or the root of the thigh. The rubber protective layer is in direct contact with the skin.

[0032] Working principle: Adjustment of the position of the dilator 2: In the initial state, the four dilator 2 are close to each other. First, the four dilator 2 are slowly inserted into the patient's vagina so that the fitting ring 3 contacts the patient's lower body skin. During the process, the fitting ring 3 is rotated so that the mating groove 28 corresponds to the position of the two legs, so that the fitting ring 3 can fit tightly to the lower body. Alternatively, the base ring 1 can be rotated to adjust the position of the dilator 2, so that the dilator 2 can be used to dilate a certain position in the vagina. Then, use both hands to press the two handles 14 respectively (corresponding to the two locking blocks 6 which can pass through the slots 7 and press against the fitting ring 3), so that the pressing handles 14 rotate towards the adjusting slide plate 4, the compression spring 17 is compressed, the locking blocks 6 are disengaged from the slots 7, thereby releasing the restriction on the adjusting slide plate 4, and the adjusting slide plate 4 can move along the base ring 1. Adjust the slide plate 4 to move along the base ring 1, thereby driving the expansion rod 2 to move and achieve the purpose of vaginal expansion; when the expansion rod 2 reaches the set position, slowly release the pressing handle 14 (without retracting the pressing handle 14), so that the pressing plate 5 rotates under the action of the compression spring 17, driving the locking block 6 to engage in the slot 7, and causing the locking block 6 to pass through the slot 7 to press against the fitting ring 3. On the one hand, the expansion rods 2 corresponding to the two pressing handles 14 complete the vaginal expansion and fix the positions of the two expansion rods 2. On the other hand, the position between the fitting ring 3 and the base ring 1 is fixed. The fitting ring 3 is firmly locked on the lower body, and reacts to the base ring 1 to fix the position of the base ring 1, and further ensures that the positions of the two expansion rods 2 are fixed. Finally, use both hands to press the other two handles 14 respectively, so that the four dilators 2 can be used to dilate the vagina. Expansion rod 2 angle adjustment: When it is necessary to adjust the angle of a certain expansion rod 2: First, the circumferential rotation control rod 10 rotates 180 degrees, causing the lead screw 19 to rotate, thereby driving the connecting column 18 to move along the adjusting slide plate 4 (under the limiting action of the T-shaped slider 21 and the T-shaped groove), driving the hinge plate 9 to rotate, and causing the expansion rod 2 to rotate by an angle. Then slide the control lever 10 so that the anti-disengagement lever 22 at the other end of the control lever 10 is engaged in the storage groove 23, thereby continuing to rotate the control lever 10 in a circular motion (at the same time in the needle direction), avoiding the inconvenience of traditional self-rotation operation. The anti-disengagement lever 22 and storage groove 23 of this application avoid motion interference during the circular rotation process, and facilitate effortless rotation of the lead screw 19. Finally, after adjusting the angle of expansion rod 2, the stability of the angle of expansion rod 2 is ensured by the self-locking action of the thread.

[0033] After the position and angle of the expansion rod 2 are adjusted: the protective ring 11 is inserted into the middle of the base ring 1, so that the four protective baffles 12 correspond to the ends of the four expansion rods 2, and the protective baffles 12 cooperate with the top rod 27, so that the protective baffles 12 protect the hinge plate 9, screw 19, etc. on the adjusting slide plate 4; among them, due to the friction limit of the friction damping roller 25, the angle of the protective baffle 12 (relative to the angle of the protective ring 11) can be adjusted by medical staff using a certain force. When the protective baffle 12 is inserted into the top rod 27, it basically maintains this angle (without large external force intervention).

[0034] On the one hand, the protective ring 11 forms a channel, which facilitates the insertion of medical instruments between the protective ring 11 and the four dilation rods 2 after vaginal dilation to carry out related treatment work; On the other hand, the protective baffle 12 prevents medical devices from accidentally colliding with the hinge plate 9, lead rod 19, etc.

Claims

1. A user-friendly four-claw vaginal speculum for obstetrics and gynecology, comprising: The base ring (1) and multiple expansion rods (2) located on the base ring (1) are characterized in that: a fitting ring (3) is rotatably connected to the bottom of the base ring (1), an adjusting slide plate (4) is rotatably connected to the base ring (1), a pressing plate (5) is rotatably connected to the adjusting slide plate (4) through an elastic element, a locking block (6) is rotatably provided on the pressing plate (5), multiple slots (7) are opened in the base ring (1) to engage with the locking block (6), the locking block (6) passes through the slots (7) to press against the fitting ring (3), a rotating sleeve (8) is fixed at the end of the adjusting slide plate (4) and rotatably connected to the expansion rods (2), multiple hinge plates (9) are rotatably connected to the expansion rods (2), and an angle adjustment component is rotatably connected to the adjusting slide plate (4) through a control rod (10). It also includes a protective ring (11), on which a protective baffle (12) is rotatably connected. The protective baffle (12) is used to engage the angle adjustment component and the rotating sleeve (8).

2. The easy-to-use four-claw vaginal speculum for obstetrics and gynecology according to claim 1, characterized in that: The adjusting slide plate (4) is provided with an inclined groove (13) for the pressing plate (5) to rotate, and the end of the pressing plate (5) is provided with a pressing handle (14) with anti-dislodgement effect.

3. The easy-to-use four-claw vaginal speculum for obstetrics and gynecology according to claim 1, characterized in that: The pressing plate (5) has an active groove (15) for the locking block (6) to move. The elastic element includes an elastic sheet (16) that moves in the active groove (15) and is connected to the two locking blocks (6). A compression spring (17) is connected between the elastic sheet (16) and the adjusting slide plate (4).

4. The easy-to-use four-claw vaginal speculum for obstetrics and gynecology according to claim 1, characterized in that: The hinge plate (9) is hinged to a connecting column (18) at one end, and a lead screw (19) is rotatably connected to the end of the connecting column (18). A threaded sleeve (20) that is threadedly connected to the lead screw (19) is fixedly connected to the adjusting slide plate (4).

5. A user-friendly four-claw vaginal speculum for obstetrics and gynecology according to claim 4, characterized in that: A T-shaped slider (21) is fixedly connected to the connecting column (18), and a T-shaped groove is provided on the adjusting slide plate (4) to slide with the T-shaped slider (21).

6. The easy-to-use four-claw vaginal speculum for obstetrics and gynecology according to claim 4, characterized in that: The control rod (10) has a convex cross-section in the middle. Anti-detachment rods (22) are fixedly connected to both ends of the control rod (10). A storage groove (23) is opened on the outer surface of the end of the screw (19) to engage with the anti-detachment rod (22).

7. The easy-to-use four-claw vaginal speculum for obstetrics and gynecology according to claim 1, characterized in that: The protective baffle (12) has a U-shaped structure. The end of the protective baffle (12) is rotatably connected to the protective ring (11) through a rotating shaft (24). A friction damping roller (25) that is in frictional cooperation with the rotating shaft (24) is fixedly connected on the protective ring (11).

8. The easy-to-use four-claw vaginal speculum for obstetrics and gynecology according to claim 1, characterized in that: The protective ring (11) is connected to the base ring (1) via a flexible connecting strip (26), and the flexible connecting strip (26) is located between two adjacent adjusting slide plates (4).

9. A user-friendly four-claw vaginal speculum for obstetrics and gynecology according to claim 4, characterized in that: The top of the threaded sleeve (20) is fixedly connected to a push rod (27) that presses against the protective baffle (12). The push rod (27) is a metal push rod, and a magnetic plate that magnetically engages with the push rod (27) is provided on the inner side of the protective baffle (12).

10. A user-friendly four-claw vaginal speculum for obstetrics and gynecology according to claim 1, characterized in that: The fitting ring (3) is provided with a fitting groove (28) that matches the shape of the human body, and a rubber protective layer is provided at the end of the fitting ring (3) away from the base ring (1).

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