WO2024012119A1

WO2024012119A1 - Vaginal dilator

Info

Publication number: WO2024012119A1
Application number: PCT/CN2023/099575
Authority: WO
Inventors: 李波; 邹颖; 孔宝浪; 阳娟
Original assignee: 重庆融海超声医学工程研究中心有限公司
Priority date: 2022-07-15
Filing date: 2023-06-12
Publication date: 2024-01-18
Also published as: CN117426737A

Abstract

The present invention provides a vaginal dilator, comprising an upper blade, a pressing handle, a lower blade and a handle. The upper blade is fixedly connected to the pressing handle, the lower blade is fixedly connected to the handle, and the handle is hingedly connected to the pressing handle. When the end of the pressing handle facing away from the upper blade approaches the end of the handle facing away from the lower blade, the upper blade and the lower blade move away from each other. The vaginal dilator further comprises a pair of side blades. The two side blades are hingedly connected to the handle, and are respectively located on two sides of a path plane where the upper blade and the lower blade rotate with respect to each other. The upper blade is provided with two matching portions. When the upper blade rotates in a direction away from the lower blade, the matching portions can push the corresponding side blades to rotate in a direction away from the path plane, and when the upper blade and the lower blade are closed, the ends of the side blades distant from the handle can enter accommodating recesses of the upper blade and the lower blade. In the present invention, when operating the vaginal dilator, a doctor only needs to perform one-step operation on the pressing handle, and the side blades on the two sides can be automatically opened under the pushing of the matching portions of the upper blade, so that the transmission structure and operation steps of the vaginal dilator are simplified.

Description

vaginal dilator

Technical field

The present invention relates to the field of medical devices, and in particular, to a vaginal dilator.

Background technique

At present, in gynecological diagnosis and treatment, conventional two-leaf vaginal dilators are commonly used to expand the vagina. However, due to reasons such as loose vaginal wall in some patients, when using a conventional two-leaf vaginal dilator, the bulging vaginal wall will backfill into the vagina in the open area, blocking the doctor's view, which is not conducive to treatment operations.

In view of the above-mentioned shortcomings of conventional two-leaf vaginal dilators, a variety of four-leaf vaginal dilators have been developed in the industry. For example, patent CN200957079A discloses a four-leaf speculum for gynecology, which is based on the circular structure of the handle. Four blades are provided on the handle, and the simultaneous opening and closing of the four blades is achieved through a control structure provided near the circular structure of the handle; patent CN101869735A discloses a vaginal dilator with double side wings, and its solution is to open and close the vaginal dilator on both sides of the upper and lower wings. Set up one side wing respectively to form four wings. When closed, the two side wings can be hidden in the upper and lower wings. When opened, the two side wings can be swing to the horizontal position by adjusting the arc-shaped flexible sleeve at the rear end of the upper wing, and then open the two wings one by one. Patent CN113143191A discloses a four-wing vaginal dilator. The solution is to provide a side expansion linkage and two side expansion pieces between the upper expansion component and the lower expansion component. When closed, the two side expansion components are hidden in the upper part. In the expansion component and the lower expansion component, when they are opened, the upper expansion component drives the side expansion linkage, and the side expansion linkage drives the two side expansion components to contact and move relative to the structure on the lower expansion component. Through the structural shape of the lower expansion component The two side expansion pieces are opened to achieve the effect of linkage between the side expansion pieces, the upper expansion assembly and the lower expansion assembly.

The above-mentioned patents can solve the problem that conventional two-leaf vaginal dilators cannot support the bulging vaginal wall and affect the doctor's vision. However, in the solution of the first patent, the two side lobes cannot be recovered into the upper and lower lobes. Therefore, it will cause a strong sense of discomfort to the patient when placed into the vagina or taken out from the vagina. In the second patent In the patented solution, although both wings can Hidden in the upper and lower wings, when placed into or taken out of the vagina, it will not cause more discomfort to the patient than a conventional two-leaf vaginal dilator. However, its opening and closing require multi-step operations, which is more convenient for doctors. To eliminate the inconvenience in the operation of the expander; the solution of the third patent not only realizes that the side expansion component is hidden in the upper expansion component and the lower expansion component when closed, but also realizes the linkage between the side expansion component and the upper expansion component and the lower expansion component when opening. It is easy to operate, but the opening and closing of the side expansion parts requires a side expansion linkage for transmission. There are many structural parts and the reliability is poor. In addition, the opening angle of the side expansion parts is different from the upper expansion component and the lower expansion part. The status of the components are all related. When used, both the upper expansion component and the lower expansion component will be stressed, which will affect the opening angle of the side expansion components. Moreover, when the side expansion components are stressed, only the small structural members on the lower expansion component play a role. There is a risk of deformation due to insufficient support. At the same time, there is also the problem of a complex locking method used to maintain the open state.

Therefore, how to provide a vaginal dilator that can not only ensure the expansion of the vaginal wall, but also improve the patient's medical experience, and has a simple structure and is easy to use has become an urgent technical problem to be solved in this field.

Contents of the invention

The present invention aims to provide a vaginal dilator, which can not only ensure that the vaginal wall is stretched, but also improve the patient's medical experience. At the same time, the vaginal dilator has a simple structure and is easy to use.

In order to achieve the above object, the present invention provides a vaginal dilator, which includes an upper leaf, a pressing handle, a lower leaf and a handle. The upper leaf is fixedly connected to the pressing handle, and the lower leaf is fixedly connected to the handle. The handle is hingedly connected to the pressing handle. When the end of the pressing handle facing away from the upper leaf is close to the end of the handle facing away from the lower leaf, the upper leaf and the lower leaf move away from each other, and the vagina expands. The device also includes a pair of side leaves, both of which are hinged to the handle and are respectively located on both sides of the path plane of the relative rotation of the upper leaf and the lower leaf. The upper leaf has two There are two matching parts corresponding to the positions of the side leaves. When the upper blade rotates in a direction away from the lower blade, the matching part can push the corresponding side leaf to rotate in a direction away from the path plane. , and the upper leaf and the lower leaf each have a receiving groove on the side facing each other. When the upper leaf and the lower leaf are closed, the end of the side leaf away from the handle can enter the in the receiving groove of the upper leaf and the lower leaf.

Optionally, the vaginal dilator further includes a pair of first elastic members, the first elastic members The elastic member is arranged in one-to-one correspondence with the two side leaves, and is used to drive the corresponding side leaf to rotate in a direction close to the path plane through elastic force.

Optionally, the side leaf is provided with at least one first positioning platform, and the handle is provided with a second positioning platform corresponding to the first positioning platform, and the first positioning platform and the second positioning platform are A first positioning through hole is formed in the center of the table. The vaginal dilator also includes two first hinge shafts corresponding to the two side leaves. The first hinge shafts pass through the corresponding side leaves in turn. The first positioning platform and the corresponding first positioning through hole on the second positioning platform are used to hinge the side leaves and the handle.

Optionally, the side leaves are provided with a pair of first positioning platforms, and the handle is provided with a pair of second positioning platforms on one side corresponding to each side leaf, and the first hinge The shaft passes through the corresponding two first positioning stages and the two second positioning stages, and the two first positioning stages are located between the corresponding two second positioning stages or between the two corresponding second positioning stages. The second positioning platform is located between the two corresponding first positioning platforms. The first elastic member is a torsion spring. The torsion spring is sleeved on the first hinge shaft and is located between the two first positioning platforms. between positioning tables.

Optionally, both side leaves have reinforcing ribs on one side surface facing each other, and the reinforcing ribs extend in a direction away from the first positioning platform.

Optionally, the handle includes a gripping part and a pair of connecting seats fixedly provided on the gripping part, the lower blade includes a lower transition section and a lower extension section, the lower extension section extends away from the connection along the The extension direction of the lower extension section extends in the direction of the seat, and the extension direction of the lower extension section forms a preset angle with the holding portion. The width of the lower extension section is less than the distance between the two connecting seats. The lower transition section Transition connection between the lower extension section and the two connecting seats;

The push handle includes a pressing portion and a peep ring that are connected to each other. The upper leaf includes an upper transition section and an upper extension section. The upper extension section corresponds to the shape of the lower extension section, and the upper extension section and the upper extension section are connected to each other. The accommodation groove is formed in the lower extension section, the bottom end of the peek ring is connected to the pressing part, and the upper transition section is transitionally connected between the top end of the peek ring and the upper extension section, so Both sides of the peek ring are respectively hinged with the two connecting seats.

Optionally, hinge posts are provided on both sides of the peek ring, hinge holes are formed on the connecting base, and two hinge holes are respectively set on the hinge posts on corresponding sides to connect the peek ring. The ring is hinged with the two connecting seats.

Optionally, the side leaves include a mounting part, a connecting part and an extension part, an avoidance gap is formed on the upper transition section, the mounting part is hingedly connected to the connecting seat on the corresponding side, and the connecting part is connected to the corresponding side. Between the installation part and the extension part, the extension part extends in a direction away from the connection seat, and when the upper blade and the lower blade are closed, the connection part can enter the avoidance on the corresponding side in the notch, and the extension part can enter the receiving groove of the upper blade and the lower blade.

Optionally, one end of the fitting part is fixedly provided on the upper transition section, the other end of the fitting part extends in a direction away from the path plane, and the fitting part has a fitting curved surface that is away from the path plane. , and the matching curved surface is in contact with the connecting portion of the side leaves.

Optionally, the vaginal dilator further includes a latching rack and a second elastic member. The latching rack is hingedly connected to the holding part. The latching rack has a plurality of latching teeth. The pressing part has a plurality of latching teeth. A latch mouth is formed, the latch rack can pass through the latch mouth when the pressing part is close to the holding part, and the second elastic member is used to drive the latch rack to rotate through elastic force, To press the latching teeth on the latching tooth rack against the edge of the latching tooth opening.

In the vaginal dilator provided by the present invention, a pair of side leaves are hinged on both sides of the handle, and the two side leaves can be hidden in the space defined by the receiving grooves of the upper and lower leaves after the upper and lower leaves are closed. Therefore, when the vaginal dilator enters the patient's body, only the upper lobe and the lower lobe are in contact with the patient's body surface, which improves the patient's medical experience. Moreover, the matching part of the upper leaf can push the side leaves on both sides to open simultaneously when the upper leaf rotates away from the lower leaf, thereby opening up the vaginal walls on both sides, preventing the bulging vaginal wall from affecting the doctor's view, and more fully exposing the vagina. Examine the area, giving the doctor a wider field of view. At the same time, when the doctor operates the vaginal dilator, he only needs to operate the handle in one step, so that the side leaves on both sides can be automatically opened under the promotion of the matching parts of the upper leaves, simplifying the transmission structure and operating steps of the vaginal dilator. , improving the doctor’s experience and treatment efficiency.

Description of drawings

The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the following specific embodiments, but do not constitute a limitation of the present invention. In the attached picture:

Figure 1 is a schematic structural diagram of a vaginal dilator in a closed state according to an embodiment of the present invention;

Figure 2 is a schematic diagram of the structure in Figure 1 from another perspective;

Figure 3 is a schematic structural diagram of the vaginal dilator provided by the embodiment of the present invention in an open state;

Figure 4 is a schematic diagram of the structure in Figure 3 from another perspective;

Figure 5 is an exploded schematic structural diagram of a vaginal dilator provided by an embodiment of the present invention;

Figure 6 is a schematic structural diagram of the upper leaf and pressing handle of the vaginal dilator provided by the embodiment of the present invention;

Figure 7 is a schematic structural diagram of the lower leaf and handle of the vaginal dilator provided by an embodiment of the present invention;

Figure 8 is a schematic structural diagram of the lateral leaves in the vaginal dilator provided by an embodiment of the present invention.

Explanation of reference symbols:

100: Upper lobe 110: Upper extension section

120: Upper transition section 121: Avoidance gap

130: Coordination department 200: Press handle

210: Pressing part 211: Stuck tooth mouth

220: Peeping Ring 221: Hinged Column

300: Lower lobe 310: Lower extension

320: Lower transition section 400: Handle

410: Grip part 420: Connecting seat

421: Second positioning table 422: Hinge hole

430: Card rack 440: Limit seat

441: Side wall 442: Bottom wall

500: Side leaf 510: Installation department

511: First positioning table 520: Connection part

530: Extension part 531: Reinforcement rib

611: The first elastic member 612: The first hinge shaft

621: Second elastic member 622: Second hinge axis

10: Accommodation groove

Detailed ways

Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

In order to solve the above technical problems, the present invention provides a vaginal dilator, as shown in Figures 1 to 4. The vaginal dilator includes an upper leaf 100, a pressing handle 200, a lower leaf 300 and a handle 400. The upper leaf 100 The lower leaf 300 is fixedly connected to the handle 400 and the handle 400 is hingedly connected to the handle 200. When the end of the handle 200 facing away from the upper leaf 100 is close to the When the handle 400 is away from one end of the lower leaf 300 (that is, when the doctor holds the handle 400 and presses the handle 200), the upper leaf 100 and the lower leaf 300 move away from each other, thereby causing the vaginal dilator to open (that is, from The closed state shown in Figures 1 and 2 changes to the open state shown in Figures 3 and 4). The vaginal dilator further includes a pair of side leaves 500. Both side leaves 500 are hinged with the handle 400 and are respectively located on both sides of the path plane through which the upper leaf 100 and the lower leaf 300 rotate relative to each other. , the upper blade 100 has two matching parts 130 corresponding to the positions of the two side blades 500. The matching parts 130 can push when the upper blade 100 rotates away from the lower blade 300. The corresponding side blade 500 rotates in a direction away from the path plane, and the upper blade 100 and the lower blade 300 both have receiving grooves 10 on the side facing each other. When the upper blade 100 and the When the lower leaf 300 is closed, the end of the side leaf 500 away from the handle 400 can enter the receiving groove 10 of the upper leaf 100 and the lower leaf 300 .

In the vaginal dilator provided by the present invention, a pair of side leaves 500 are hinged on both sides of the handle 400. The two side leaves 500 can be hidden in the receiving recesses of the upper leaf 100 and the lower leaf 300 after the upper leaf 100 and the lower leaf 300 are closed. In the space defined by the groove 10, when the vaginal dilator enters the patient's body, only the upper lobe 100 and the lower lobe 300 are in contact with the patient's body surface, which improves the patient's medical experience. Moreover, when the upper leaf 100 rotates away from the lower leaf 300 (that is, when the upper leaf 100 and the lower leaf 300 open), the matching portion 130 of the upper leaf 100 can push the side leaves 500 on both sides to open simultaneously, thereby opening the vaginas on both sides. The vaginal wall prevents the bulging vaginal wall from affecting the doctor's sight, and more fully exposes the examination area, allowing the doctor to obtain a wider field of view. At the same time, the doctor is When operating the vaginal dilator, you only need to operate the handle 200 in one step, so that the side leaves 500 on both sides can be automatically opened under the promotion of the matching part 130 of the upper leaf 100, which simplifies the transmission structure and operating steps of the vaginal dilator. , improving the doctor’s experience and treatment efficiency.

In order to realize automatic closing of the vaginal dilator, as a preferred embodiment of the present invention, as shown in Figure 5, the vaginal dilator further includes a pair of first elastic members 611, and the first elastic member 611 and two The side leaves 500 are arranged in one-to-one correspondence, and are used to drive the corresponding side leaves 500 to rotate in a direction close to the path plane through elastic force.

In the embodiment of the present invention, the vaginal dilator further includes a pair of first elastic members 611. The first elastic members 611 can drive the side leaves 500 on both sides to approach each other through elastic force. At the same time, the side leaves 500 rotate from the open state to the open state. During the closed state, the fitting part 130 will be pushed in turn, so that the upper lobe 100 can be closed synchronously with the lower lobe 300, thereby achieving the automatic closing of the vaginal dilator as shown in Figures 1 and 2 after the handle 200 is released. state.

As an optional embodiment of the present invention, as shown in Figures 3 and 5, the side leaf 500 is provided with at least one first positioning platform 511, and the handle 400 is provided with at least one first positioning platform 511. A corresponding second positioning platform 421. A first positioning through hole is formed in both the first positioning platform 511 and the second positioning platform 421. The vaginal dilator also includes a pair of two side leaves 500. One corresponding two first hinge shafts 612, the first hinge shafts 612 pass through the corresponding first positioning platform 511 of the side leaf 500 and the corresponding second positioning platform 421 in turn. A first positioning through hole is used to hinge the side leaf 500 and the handle 400 .

Alternatively, as shown in Figure 5, the first hinge shaft 612 may be a pin.

In order to improve the stability of the movement trajectory of the side leaf 500, as a preferred embodiment of the present invention, as shown in Figures 5 and 7, the side leaf 500 is provided with a pair of first positioning stages 511, and the handle 400 is provided with a pair of second positioning platforms 421 on one side corresponding to each side leaf 500, and the first hinge shaft 612 passes through the corresponding two first positioning platforms 511 and the two first positioning platforms 511. The second positioning platforms 421 are located between the two first positioning platforms 421, or the two second positioning platforms 421 are located between the two corresponding first positioning platforms 421. Between the positioning tables 511 , the first elastic member 611 is a torsion spring. The torsion spring is sleeved on the first hinge shaft 612 and is located between the two first positioning tables 511 .

In the embodiment of the present invention, there is a pair of first positioning platforms 511 on the side leaves 500, a pair of second positioning platforms 421 on both sides of the handle 400, and the first hinge shaft 612 passes through the corresponding two first positioning platforms. The platform 511 and the two second positioning platforms 421 realize the hinge connection between the side leaf 500 and the handle 400. The two second positioning platforms 421 spaced apart from each other and the two first positioning platforms 511 spaced apart from each other ensure that the side leaves are 500 torsion direction stability. Moreover, the first elastic member 611 is a torsion spring, and the torsion spring is sleeved on the first hinge shaft 612 and is located between the two first positioning stages 511 (and also between the two second positioning stages 421), so that By locking the two sides of the torsion spring with a pair of positioning stages, the torsion spring can be effectively prevented from breaking away from the first hinge shaft 612 and collapsing.

In order to improve the structural strength of the side leaves 500, as a preferred embodiment of the present invention, as shown in Figures 3, 4, and 8, both side leaves 500 have reinforcing ribs on the side surfaces facing each other. 531, the reinforcing rib 531 extends in a direction away from the first positioning platform 511.

As an optional embodiment of the present invention, as shown in Figures 1 to 5 and 7, the handle 400 includes a gripping portion 410 and a pair of connecting seats 420 fixedly provided on the gripping portion 410. The lower blade 300 includes a lower transition section 320 and a lower extension section 310 . The lower extension section 310 extends in a direction away from the connecting seat 420 , and the extension direction of the lower extension section 310 is consistent with the direction between the holding portion 410 and the lower extension section 310 . At a preset angle, the width of the lower extension section 310 is less than the distance between the two connection seats 420, and the lower transition section 320 is transitionally connected between the lower extension section 310 and the two connection seats 420. between;

As shown in FIGS. 1 to 6 , the pressing handle 200 includes a pressing portion 210 and a peeking ring 220 that are connected to each other. The upper blade 100 includes an upper transition section 120 and an upper extension section 110 . The upper extension section 110 is connected with the upper extension section 110 . The lower extension section 310 has a corresponding shape, and the accommodation groove 10 is formed in the upper extension section 110 and the lower extension section 310. The bottom end of the peek ring 220 is connected to the pressing part 210. The upper transition section 120 is transitionally connected between the top end of the peek ring 220 and the upper extension section 110 . Both sides of the peek ring 220 are respectively hinged with the two connecting seats 420 .

In the embodiment of the present invention, the handle 400 includes a pair of connection seats 420 that avoids the extension path of the accommodation groove 10. The handle 200 includes a peek ring 220. Both sides of the peek ring 220 are hinged with the two connection seats 420, so that the doctor can Able to pass through the viewing ring 220 and the two connection sockets The space between 420 looks forward to ensure the range of vision.

As a preferred embodiment of the present invention, as shown in FIGS. 5 to 7 , hinge posts 221 are provided on both sides of the peep ring 220 , and hinge holes 422 are formed on the connection base 420 . The holes 422 are respectively set on the hinge posts 221 on the corresponding sides to hinge the viewing ring 220 with the two connecting seats 420 .

In the embodiment of the present invention, the hinge posts 221 on both sides of the peep ring 220 are respectively inserted into the hinge holes 422 on the two connecting seats 420 to realize hinge connection, which simplifies the hinge structure between the push handle 200 and the handle 400 and reduces the mechanical complexity. The space occupied by the transmission mechanism further ensures the range of vision.

As an optional embodiment of the present invention, as shown in Figures 3, 5 and 8, the side leaf 500 includes a mounting part 510, a connecting part 520 and an extension part 530, and the upper transition section 120 is formed with Avoiding the notch 121, the mounting part 510 is hinged with the connecting seat 420 on the corresponding side. The connecting part 520 is connected between the mounting part 510 and the extending part 530. The extending part 530 is away from the The connecting seat 420 extends in one direction, and when the upper blade 100 and the lower blade 300 are closed, the connecting part 520 can enter the avoidance gap 121 on the corresponding side, and the extension part 530 can enter the upper blade 100 and the lower blade 300 . The lobe 100 and the lower lobe 300 are in the receiving groove 10 .

In the embodiment of the present invention, the side leaf 500 is a curved structure composed of the mounting part 510, the connecting part 520 and the extension part 530 connected in sequence. This curved structure allows the extension part 530 for supporting the vaginal wall to enter the upper extension part 110 and the lower extension part. into the receiving groove 10 of the section 310 while maintaining the connection relationship between the mounting portion 510 and the handle 400 whose width is larger than that of the upper extension section 110 and the lower extension section 310 .

Optionally, as shown in Figures 3, 4, and 8, the reinforcing ribs 531 are formed on the extension portion 530.

As an optional embodiment of the present invention, as shown in Figures 3, 5, and 6, one end of the fitting portion 130 is fixedly provided on the upper transition section 120, and the other end of the fitting portion 130 faces toward Extending in a direction away from the path plane, the mating portion 130 has a mating curved surface A that is away from the path plane, and the mating curved surface A is in contact with the connecting portion 520 of the side leaf 500 .

Optionally, the fitting portion 130 is integrally formed with the upper blade 100, for example, when the upper blade 100 When the push handle 200 is made of metal, the matching portion 130, the upper transition section 120 and the upper extension section 110 can be integrally formed through metal processing technology. In the embodiment of the present invention, the fitting part 130 contacts the connecting part 520 through the fitting curved surface A, so that the fitting curved surface A of the fitting part 130 can be easily processed according to the required opening rate of the side leaf 500 to avoid the extension part. 530 collides with upper lobe 100.

In order to facilitate fixing the opening degree of the vaginal dilator, as an optional embodiment of the present invention, as shown in Figures 4 and 5, the vaginal dilator further includes a rack 430 and a second elastic member 621, so The latching rack 430 is hingedly connected to the holding part 410. The latching rack 430 has a plurality of latching teeth. A latching tooth opening 211 is formed on the pressing part 210. The latching rack 430 can be positioned on the When the pressing part 210 is close to the holding part 410, it passes through the latch mouth 211. The second elastic member 621 is used to drive the latch rack 430 to rotate through elastic force, so as to rotate the latch rack 430. The latch teeth press on the edge of the latch tooth opening 211 .

In the embodiment of the present invention, the gripping part 410 is hinged with a latch rack 430, and the second elastic member 621 can drive the latch rack 430 to rotate through elastic force, so that the pressing part 210 is pressed until the latch rack 430 is inserted into the latch rack. When in the mouth 211, the second elastic member 621 can force the latch rack 430 to press down through the elastic force, so that the latch teeth on the latch rack 430 block the latch tooth mouth 211, thereby fixing the pressing part 210 on each of the latch rack 430. The opening angle corresponding to the gear teeth realizes the automatic fixation of the vaginal dilator in multiple gears.

Moreover, since the latch rack 430 is hinged with the holding part 410, when the pressing part 210 is pressed, the latch rack 430 can rotate upward to escape. Compared with the method of only utilizing the elastic deformation of the latch rack 430 and other structures to achieve fixation. , the noise generated by the collision between the latching teeth of the latching rack 430 and the latching tooth opening 211 will be significantly reduced. In addition, when ending use, the doctor only needs to push the latch rack 430 upward to make its latch teeth leave the side of the latch tooth opening 211, so that the upper leaf 100 and the side leaf 500 can be acted upon by the elastic force of the first elastic member 611. It automatically folds up at the bottom, that is, the four leaves can be folded together at the same time through a push action to achieve four-leaf linkage.

As an optional embodiment of the present invention, as shown in Figures 5 and 7, the vaginal dilator further includes a limiting seat 440 and a second hinge shaft 622. The limiting seat 440 is fixedly provided on the holding portion 410. And located on the surface of the holding portion 410 on the side away from the lower extension section 310, the limiting seat 440 includes two opposite and vertical side walls 441 and a horizontal bottom wall 442. The bottom ends of the two side walls 441 are all fixedly connected to the bottom wall 442, the side walls 441 and One side of the bottom wall 442 along the horizontal direction is fixedly connected to the holding portion 410 . A second positioning through hole is formed on both side walls 441 of the limit seat 440, and a third positioning through hole is formed on the rack 430. One end of the rack 430 is disposed in the limit seat 440, and the second hinge shaft 622 Pass through the second positioning through hole and the third positioning through hole to hinge the rack 430 and the limiting seat 440 .

In the embodiment of the present invention, the bottom wall 442 of the limiting seat 440 is also used to limit the initial rotation angle of the rack 430. Specifically, the second elastic member 621 drives the rack 430 downward through elastic force. (in the up and down direction in the figure), thereby pressing the latch rack 430 against the bottom wall 442 of the limiting seat 440, so that the latch rack 430 is far away from the initial position of one end of the holding part 410 and the latch mouth on the pressing part 210. 211 rotates to this angle so that the clamping rack 430 can naturally fit into the clamping tooth opening 211 .

As an optional embodiment of the present invention, as shown in FIG. 5 , the second elastic member 621 is a torsion spring, which is sleeved on the second hinge shaft 622 and located on the two side walls 441 of the limiting seat 440 During this period, one end of the torsion spring is pressed against the holding portion 410 and the other end is pressed against the clamping rack 430 , thereby driving the clamping rack 430 away from the peek ring 220 and pressing down on the bottom wall 442 of the limiting seat 440 superior.

In the vaginal dilator provided by the present invention, a pair of side leaves 500 are hinged on both sides of the handle 400. The two side leaves 500 can be hidden in the receiving recesses of the upper leaf 100 and the lower leaf 300 after the upper leaf 100 and the lower leaf 300 are closed. In the space defined by the groove 10, when the vaginal dilator enters the patient's body, only the upper lobe 100 and the lower lobe 300 are in contact with the patient's body surface, which improves the patient's medical experience. Moreover, when the upper leaf 100 rotates away from the lower leaf 300, the mating portion 130 of the upper leaf 100 can push the side leaves 500 on both sides to open simultaneously, thereby stretching the vaginal walls on both sides and preventing the bulging vaginal wall from affecting the doctor's view. , more fully exposes the examination area, allowing the doctor to obtain a larger field of view. At the same time, when the doctor operates the vaginal dilator, he only needs to operate the handle 200 in one step, so that the side leaves 500 on both sides can be automatically opened under the promotion of the matching part 130 of the upper leaf 100, which simplifies the transmission of the vaginal dilator. The structure and operating steps improve the doctor's experience and treatment efficiency.

It can be understood that the above embodiments are only exemplary embodiments adopted to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims

A vaginal dilator, including an upper leaf, a pressing handle, a lower leaf and a handle. The upper leaf is fixedly connected to the pressing handle. The lower leaf is fixedly connected to the handle. The handle is hinged to the pressing handle. , when the end of the handle facing away from the upper leaf is close to the end of the handle facing away from the lower leaf, the upper leaf and the lower leaf are far away from each other, characterized in that the vaginal dilator also includes a For the side leaves, both side leaves are hinged with the handle and are respectively located on both sides of the path plane of the relative rotation of the upper leaf and the lower leaf. The upper leaf has two side leaves. There are two matching parts in one-to-one correspondence. When the upper blade rotates in a direction away from the lower blade, the matching part can push the corresponding side blade to rotate in a direction away from the path plane, and the The upper leaf and the lower leaf each have a receiving groove on the side facing each other. When the upper leaf and the lower leaf are closed, the end of the side leaf away from the handle can enter the upper leaf and the lower leaf. into the receiving groove of the lower leaf.
The vaginal dilator according to claim 1, characterized in that the vaginal dilator further includes a pair of first elastic members, the first elastic members are arranged in one-to-one correspondence with the two side leaves, and are used for The corresponding side leaves are driven by elastic force to rotate in a direction close to the path plane.
The vaginal dilator according to claim 2, wherein the side leaf is provided with at least one first positioning platform, and the handle is provided with a second positioning platform corresponding to the first positioning platform, so A first positioning through hole is formed in both the first positioning platform and the second positioning platform. The vaginal dilator also includes two first hinge axes corresponding to the two side leaves. The first The hinge shaft passes through the first positioning platform of the corresponding side leaf and the first positioning through hole of the corresponding second positioning platform in order to hinge the side leaf with the handle.
The vaginal dilator according to claim 3, wherein the side leaves are provided with a pair of first positioning tables, and the handle is provided with a pair of first positioning tables on one side corresponding to each side leaf. The second positioning platform, the first hinge axis passes through the corresponding two A first positioning stage and two second positioning stages, and the two first positioning stages are located between the corresponding two second positioning stages or the two second positioning stages are located between the corresponding two Between the first positioning tables, the first elastic member is a torsion spring. The torsion spring is sleeved on the first hinge shaft and is located between the two first positioning tables.
The vaginal dilator according to claim 4, wherein the two side leaves have reinforcing ribs on the side surfaces facing each other, and the reinforcing ribs extend in a direction away from the first positioning platform.
The vaginal dilator according to any one of claims 1 to 5, wherein the handle includes a holding part and a pair of connecting seats fixedly provided on the holding part, and the lower leaf includes a lower blade. a transition section and a lower extension section. The lower extension section extends in a direction away from the connecting seat, and the extension direction of the lower extension section forms a preset angle with the holding portion. The width of the lower extension section Less than the distance between the two connecting seats, the lower transition section is transitionally connected between the lower extension section and the two connecting seats;

The push handle includes a pressing portion and a peep ring that are connected to each other. The upper leaf includes an upper transition section and an upper extension section. The upper extension section corresponds to the shape of the lower extension section, and the upper extension section and the upper extension section are connected to each other. The accommodation groove is formed in the lower extension section, the bottom end of the peek ring is connected to the pressing part, and the upper transition section is transitionally connected between the top end of the peek ring and the upper extension section, so Both sides of the peek ring are respectively hinged with the two connecting seats.
The vaginal dilator according to claim 6, characterized in that hinge posts are provided on both sides of the peep ring, hinge holes are formed on the connecting seat, and the two hinge holes are respectively sleeved on the corresponding sides. on the hinged column to hinge the peek ring with the two connecting seats.
The vaginal dilator according to claim 6, wherein the side leaves include a mounting part, a connecting part and an extension part, an avoidance gap is formed on the upper transition section, and the mounting part is connected to the corresponding side of the vaginal dilator. The connecting base is hinged, the connecting part is connected between the mounting part and the extending part, the extending part extends in a direction away from the connecting base, and when the When the upper leaf and the lower leaf are closed, the connecting portion can enter the escape notch on the corresponding side, and the extension portion can enter the receiving groove of the upper leaf and the lower leaf.
The vaginal dilator according to claim 8, wherein one end of the fitting part is fixedly provided on the upper transition section, and the other end of the fitting part extends in a direction away from the path plane, and the The fitting portion has a fitting curved surface that is away from the path plane, and the fitting curved surface is in contact with the connecting portion of the side leaves.
The vaginal dilator according to claim 6, characterized in that the vaginal dilator further includes a rack and a second elastic member, the rack is hingedly connected to the holding portion, and the rack is It has a plurality of latching teeth, a latching tooth opening is formed on the pressing part, the latching tooth rack can pass through the latching tooth opening when the pressing part is close to the holding part, and the second elastic member is The elastic force drives the latch rack to rotate, so as to press the latch teeth on the latch rack against the edge of the latch tooth opening.