Expander

Abstract

The utility model belongs to the technical field of medical instruments, and discloses a dilator which comprises an upper blade and a lower blade, the upper blade comprises a body and a pressing arm which are connected, the body is rotatably connected to the lower blade through a rotating shaft, the pressing arm is arranged on one side of the body in the radial direction of the rotating shaft, and an upper duckbill is arranged on the other side of the body in the radial direction of the rotating shaft. The pressing arm can bear external force and drive the body to rotate around the axis of the rotating shaft relative to the lower blade, the upper blade is provided with a first reinforcing rib, the first reinforcing rib is divided into two continuous sections, one section extends to one side of the rotating shaft in the arrangement direction of the body and the pressing arm and extends to the pressing arm, and the other section extends to the lower blade. And the other section extends towards the rotating shaft along the other side of the arrangement direction of the body and the pressing arm and is close to the upper duckbill. According to the medical dilator, the structural strength of the lever structure can be improved through the first reinforcing rib, so that the lever structure is prevented from deforming, the operation hand feeling of medical staff is prevented from being affected, and the reliability of the dilator is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field especially, relate to a dilator. BACKGROUND

[0002] The vaginal dilator is a kind of medical instrument for diagnosing and screening gynecological diseases in clinic, which plays an important role in marriage examination, pregnancy examination and prenatal examination.

[0003] The existing vaginal dilator generally includes upper lobe and lower lobe, and the upper lobe and the lower lobe are rotationally connected to form a dilating structure.In use, medical staff sends the dilator into the vagina, and controls the upper lobe to rotate relative to the lower lobe, so as to open the vagina to a certain space, and then observes the inside of the vagina through the window provided on the upper lobe to make a diagnosis.

[0004] Specifically, in the prior art, the upper lobe generally includes two parts of a body and a pressing arm, wherein the body is rotationally connected to the lower lobe through a rotating shaft, and an upper duckbill is formed on the body, and the pressing arm is arranged on the side of the rotating shaft away from the upper duckbill in the radial direction, so as to form a lever structure.In use, medical staff can press the pressing arm to make the body rotate relative to the lower lobe around the axis of the rotating shaft, and then make the upper duckbill and a lower duckbill arranged on the lower lobe open, so as to open the vagina to a certain space.

[0005] However, for the lever structure described above, since the pressing arm needs to bear force and then drive the body to rotate, the overall lever structure is prone to deformation, which affects the operation feeling of medical staff and the reliability of the dilator. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a dilator to solve the problem that the overall lever structure is prone to deformation, which affects the operation feeling of medical staff and the reliability of the dilator.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] A dilator includes an upper lobe and a lower lobe, the upper lobe includes a body and a pressing arm connected together, the body is rotationally connected to the lower lobe through a rotating shaft, the pressing arm is arranged on one side of the body in the radial direction of the rotating shaft, and an upper duckbill is arranged on the other side of the body in the radial direction of the rotating shaft, the pressing arm can bear external force and drive the body to rotate relative to the lower lobe around the axis of the rotating shaft, the upper lobe is provided with a first reinforcing rib, the first reinforcing rib is divided into two continuous sections, one section extends to the pressing arm on one side of the body and the pressing arm in the arrangement direction and the other section extends on the other side of the body and the pressing arm in the arrangement direction and is close to the upper duckbill.

[0009] As preferred, the end face of the body away from the lower leaf side is provided with an opening, the opening forms a window, the upper leaf is further provided with a second reinforcing rib, the second reinforcing rib is around the outer periphery of the window.

[0010] As preferred, the first reinforcing rib and the second reinforcing rib are both arranged on the outer side of the upper leaf.

[0011] As preferred, the first reinforcing rib and the second reinforcing rib are integrally formed.

[0012] As preferred, the end face is convex to the side away from the opening to form the second reinforcing rib, and / or the end face is convex to the inside of the opening to form the second reinforcing rib.

[0013] As preferred, the body is provided with the pressing arm along the axial side of the rotating shaft, the pressing arm and the body are integrally formed.

[0014] As preferred, the second reinforcing rib is around the outer periphery of the window and away from the side of the pressing arm of the rotating shaft.

[0015] As preferred, the body comprises a first connecting plate and a second connecting plate, the first connecting plate and the second connecting plate are arranged to form the opening;

[0016] The rotating shaft comprises a first shaft part and a second shaft part, the first shaft part is arranged on the side of the first connecting plate towards the second connecting plate, the second shaft part is arranged on the side of the second connecting plate towards the first connecting plate, the lower leaf is provided with a third connecting plate and a fourth connecting plate, the third connecting plate and the fourth connecting plate are respectively provided with a first shaft hole and a second shaft hole, the first shaft part is installed in the first shaft hole, and the second shaft part is installed in the second shaft hole.

[0017] As preferred, the third connecting plate is provided with a third reinforcing rib, the third reinforcing rib is formed between the third connecting plate and the lower leaf;

[0018] The fourth connecting plate is provided with a fourth reinforcing rib, the fourth reinforcing rib is formed between the fourth connecting plate and the lower leaf.

[0019] As preferred, the first connecting plate and the second connecting plate are integrally formed.

[0020] The beneficial effects of the utility model are as follows:

[0021] In the utility model, the first reinforcing rib can improve the structural strength of the lever structure, thereby preventing deformation and avoiding affecting the operation feeling of medical staff and improving the reliability of the dilator. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is the structural schematic view of the dilator in the embodiment one of the utility model;

[0023] Figure 2 is the structural schematic view of the dilator in the embodiment one of the utility model;

[0024] Figure 3 is the structural schematic view of the upper leaf in the embodiment one of the utility model;

[0025] Figure 4 is the structural schematic view of the upper leaf in the embodiment one of the utility model;

[0026] Figure 5 is the structural schematic view of the lower leaf in the embodiment one of the utility model;

[0027] Figure 6 is the structural schematic view of the dilator in the embodiment two of the utility model;

[0028] Figure 7 is the structural schematic view of the dilator in the embodiment two of the utility model;

[0029] Figure 8 is the structural schematic view of the upper leaf in the embodiment two of the utility model;

[0030] Figure 9 is the structural schematic view of the lower leaf in the embodiment two of the utility model.

[0031] In the drawing:

[0032] 1, upper leaf;11, body;111, opening;112, first connecting plate;113, second connecting plate;114, upper duckbill;115, end face;12, pressing arm;121, lock catch structure;13, first reinforcing rib;14, second reinforcing rib;15, hanging and clamping groove;

[0033] 2, lower leaf;21, third connecting plate;211, first shaft hole;212, third reinforcing rib;22, fourth connecting plate;221, second shaft hole;222, fourth reinforcing rib;23, lower duckbill;

[0034] 3, rotating shaft;31, first shaft part;32, second shaft part. DETAILED DESCRIPTION

[0035] The utility model will be further explained in detail in connection with the drawings and embodiments. It can be understood that the specific embodiments described here are only for explaining the utility model, and not for limiting the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawing, not all structures.

[0036] In the description of the utility model, unless another explicit provision and limitation, the term "connected", "connection", "fixed" should be broad sense understanding, for example, can be fixed connection, can also be detachable connection, or into an organic whole;Can be mechanical connection, can also be electrical connection;Can be directly connected, can also be indirectly connected through the intermediate medium, can be two elements inside the communication or the interaction relationship of two elements.For the ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0037] In the utility model, unless another explicit provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, can also include the first and second features are not direct contact but contact through another feature between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.

[0038] In the description of the embodiment, the terms "on", "under", "right", "left" and other orientation or position relationship are based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification operation, and not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0039] Embodiment one

[0040] Please refer to Figures 1 to 5 The embodiment provides a dilator, which comprises upper leaf 1 and lower leaf 2, the upper leaf 1 comprises the body 11 and the pressing arm 12 connected, the body 11 is rotationally connected to the lower leaf 2 through the pivot 3, the pressing arm 12 is arranged on the side of the body 11 along the radial direction of the pivot 3, so as to form a lever structure, in use, the pressing arm 12 can bear external force, based on the lever structure, the pressing arm 12 drives the body 11 to rotate relative to the lower leaf 2 around the axis of the pivot 3.

[0041] Specifically, the other side of the body 11 along the radial direction of the rotation shaft 3 is provided with an upper duckbill 114, and the body 11 is also formed with a window, and the lower leaf 2 is formed with a lower duckbill 23, the upper duckbill 114 and the lower duckbill 23 are oppositely arranged, in use, medical staff can press the pressure arm 12 to press the pressure arm 12, and then drive the body 11 to rotate around the axis of the rotation shaft 3 relative to the lower leaf 2, after the pressure arm 12 drives the body 11 to rotate around the axis of the rotation shaft 3 relative to the lower leaf 2, the upper duckbill 114 and the lower duckbill 23 can be opened, so as to open the vagina to a certain space, so as to facilitate the medical staff to observe the internal condition of the vagina through the window.

[0042] In addition, in the embodiment, the upper leaf 1 is provided with a first reinforcing rib 13, the first reinforcing rib 13 is divided into two continuous sections, one section extends to the side of the body 11 and the pressure arm 12 along the arrangement direction of the rotation shaft 3 and extends to the pressure arm 12, and the other section extends to the other side of the body 11 and the pressure arm 12 along the arrangement direction of the rotation shaft 3 and is close to the upper duckbill 114.

[0043] From the above, in the embodiment, the first reinforcing rib 13 can improve the structural strength of the lever structure, so as to prevent deformation, avoid affecting the operation feeling of medical staff, and improve the reliability of the dilator.

[0044] It is worth noting that in the embodiment, the body 11 is provided with a pressure arm 12 on one side along the axial direction of the rotation shaft 3, that is, in the embodiment, the dilator is provided with a pressure arm 12 on one side, so as to facilitate the operation of medical staff and avoid affecting the observation of the internal condition of the vagina through the window by medical staff.

[0045] From the above, the first reinforcing rib 13 is arranged on one side of the rotation shaft 3 along the axial direction, and the first reinforcing rib 13 is arranged on the same side as the pressure arm 12, so as to prevent the lever structure from deforming when the upper leaf 1 is subjected to unilateral force, thereby avoiding affecting the operation feeling of medical staff and improving the reliability of the dilator.

[0046] Moreover, in the embodiment, the pressure arm 12 and the body 11 are integrally formed, so as to further improve the structural strength of the lever structure, and further prevent the lever structure from deforming.

[0047] It is worth noting that the pressure arm 12 is provided with a lock structure 121, which is used to lock the relative position of the upper leaf 1 and the lower leaf 2 after the pressure arm 12 is pressed and drives the body 11 to rotate around the axis of the rotation shaft 3 relative to the lower leaf 2 to a predetermined position to open the vagina to a required space, so as to avoid the upper leaf 1 and the lower leaf 2 from closing due to the contraction of the vagina, thereby facilitating the medical staff to observe the internal condition of the vagina through the window.

[0048] Exemplarily, the embodiment adopts a buckle structure as the locking structure 121. Since the specific structure of the buckle structure is prior art, and the embodiment does not improve the prior art, the embodiment will not be described here.

[0049] Based on the foregoing, the end surface 115 of the body 11 away from the lower leaf 2 is provided with an opening 111 forming a window. The opening 111 reduces the structural strength of the body 11. In order to facilitate the operation of medical staff, the area of the upper leaf 1 provided with the opening 111 is also provided with a hanging slot 15 for hanging other auxiliary instruments, thereby further reducing the structural strength of the body 11.

[0050] In order to improve the structural strength of the body 11, in addition to the first reinforcing rib 13, the upper leaf 1 is also provided with a second reinforcing rib 14. The second reinforcing rib 14 surrounds the outer periphery of the window, thereby improving the structural strength of the area of the upper leaf 1 provided with the opening 111. The first reinforcing rib 13 and the second reinforcing rib 14 cooperate, thereby improving the overall structural strength of the dilator, and further improving the reliability of the dilator.

[0051] It is worth noting that in the embodiment, the second reinforcing rib 14 is formed on the end surface 115 of the body 11 away from the lower leaf 2. Specifically, the end surface 115 protrudes to the side away from the opening 111 to form the second reinforcing rib 14. Thus, the second reinforcing rib 14 is integrally formed with the end surface 115 of the body 11 away from the lower leaf 2, forming a continuous structure, thereby further improving the structural strength of the area of the upper leaf 1 provided with the opening 111.

[0052] It is also worth noting that based on the foregoing, the hanging slot 15 is also provided on the end surface 115 of the upper leaf 1 away from the lower leaf 2. The hanging slot 15 divides the second reinforcing rib 14 into two segments, which are located on both sides of the opening 111 along the circumferential direction of the opening 111.

[0053] It is worth noting that based on the foregoing, in the embodiment, the dilator is provided with the pressure arm 12 on only one side. Correspondingly, the dilator is provided with the first reinforcing rib 13 on only one side. Based on this, in the embodiment, the second reinforcing rib 14 surrounds the outer periphery of the window and extends beyond the pivot 3 away from the pressure arm 12, thereby improving the structural strength of the part of the body 11 located on the side of the pivot 3 away from the pressure arm 12.

[0054] In addition, in addition to the second reinforcing rib 14, the first reinforcing rib 13 is also provided on the outer side of the upper leaf 1. That is, in the embodiment, the first reinforcing rib 13 and the second reinforcing rib 14 are both provided on the outer side of the upper leaf 1, thereby avoiding affecting the field of view of the window, and further facilitating medical staff to observe the internal situation of the vagina through the window.

[0055] Moreover, the first reinforcing rib 13 and the second reinforcing rib 14 are integrally formed to form a continuous structure, so that the overall structural strength of the dilator can be further improved, and the reliability of the dilator can be further improved.

[0056] Further, in the present embodiment, the body 11 comprises a first connecting plate 112 and a second connecting plate 113, the first connecting plate 112 and the second connecting plate 113 are configured to form the opening 111, and the rotating shaft 3 comprises a first shaft portion 31 and a second shaft portion 32, the first shaft portion 31 is arranged on the side of the first connecting plate 112 facing the second connecting plate 113, and the second shaft portion 32 is arranged on the side of the second connecting plate 113 facing the first connecting plate 112, the lower leaf 2 is provided with a third connecting plate 21 and a fourth connecting plate 22, the third connecting plate 21 and the fourth connecting plate 22 are respectively provided with a first shaft hole 211 and a second shaft hole 221, the first shaft portion 31 is installed in the first shaft hole 211, and the second shaft portion 32 is installed in the second shaft hole 221, so that the view of the window is further avoided to be affected, and the medical staff can more conveniently observe the inside of the vagina through the window.

[0057] Moreover, the first connecting plate 112 and the second connecting plate 113 are integrally formed, so that the structural strength of the body 11 can be further improved.

[0058] In addition, the upper duckbill 114 is also integrally formed with the first connecting plate 112 and the second connecting plate 113, so that the structural strength of the body 11 can be further improved.

[0059] Embodiment Two

[0060] As shown in Figures 6 to 9 Compared with Embodiment One, the difference of the present embodiment is that the end face 115 of the body 11 away from the lower leaf 2 is protruded inwardly of the opening 111 to form a second reinforcing rib 14, and the second reinforcing rib 14 extends along the circumference of the opening 111, so that the structural strength of the region of the upper leaf 1 where the opening 111 is arranged can be improved, and the first reinforcing rib 13 and the second reinforcing rib 14 cooperate to improve the overall structural strength of the dilator, and the reliability of the dilator can be further improved.

[0061] In addition, in other optional embodiments, the end face 115 can be both protruded outwardly to form a second reinforcing rib 14 away from the opening 111 and protruded inwardly to form a second reinforcing rib 14 into the opening 111, and the present embodiment does not make specific limitation on this.

[0062] Moreover, in the embodiment, the third connecting plate 21 is provided with a third reinforcing rib 212, the third reinforcing rib 212 is formed between the third connecting plate 21 and the lower blade 2, the fourth connecting plate 22 is provided with a fourth reinforcing rib 222, the fourth reinforcing rib 222 is formed between the fourth connecting plate 22 and the lower blade 2, so that the structural strength of the lever structure can be further improved, and the deformation problem of the lever structure can be further prevented.

[0063] In addition, compared with the first embodiment, the difference of the embodiment is that the rotating plug structure is used as the lock catch structure 121, the specific structure of the rotating plug structure is the prior art, and the rotating plug structure is not improved by the utility model, therefore, the embodiment will not be described.

[0064] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation of the embodiments of the utility model. For the ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, all the embodiments need not and cannot be exhausted. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A dilator comprising an upper blade (1) and a lower blade (2), the upper blade (1) comprising a body (11) and a pressing arm (12) connected to each other, the body (11) being pivotally connected to the lower blade (2) through a pivot shaft (3), the pressing arm (12) being arranged on one side of the body (11) along a radial direction of the pivot shaft (3), the other side of the body (11) along the radial direction of the pivot shaft (3) being provided with an upper duckbill (114), the pressing arm (12) being capable of bearing an external force and driving the body (11) to rotate about an axis of the pivot shaft (3) relative to the lower blade (2), characterized in that, The upper leaf (1) is provided with a first reinforcing rib (13) which is divided into two continuous sections, one of which extends to the side of the rotation shaft (3) along the arrangement direction of the body (11) and the pressing arm (12) and extends to the pressing arm (12), and the other of which extends to the other side of the rotation shaft (3) along the arrangement direction of the body (11) and the pressing arm (12) and is close to the upper duckbill (114).

2. A dilator according to claim 1, wherein, The end face (115) of the side of the body (11) away from the lower leaf (2) is provided with an opening (111) which forms a window, and the upper leaf (1) is further provided with a second reinforcing rib (14) which surrounds the outer periphery of the window.

3. A dilator according to Claim 2, wherein, The first reinforcing rib (13) and the second reinforcing rib (14) are both arranged on the outer side of the upper leaf (1).

4. A dilator according to Claim 3, wherein, The first reinforcing rib (13) and the second reinforcing rib (14) are integrally formed.

5. The dilator of claim 2, wherein, The end face (115) is convex to the side away from the opening (111) to form the second reinforcing rib (14), and / or the end face (115) is convex to the inside of the opening (111) to form the second reinforcing rib (14).

6. A dilator according to Claim 2, wherein, The body (11) is provided with the pressing arm (12) on one side along the axial direction of the rotation shaft (3), and the pressing arm (12) and the body (11) are integrally formed.

7. A dilator according to Claim 6 wherein, The second reinforcing rib (14) surrounds the outer periphery of the window and is away from the side of the pressing arm (12) away from the rotation shaft (3).

8. The dilator of claim 2, wherein, The body (11) comprises a first connecting plate (112) and a second connecting plate (113), and the first connecting plate (112) and the second connecting plate (113) form the opening (111); The rotation shaft (3) comprises a first shaft portion (31) and a second shaft portion (32), the first shaft portion (31) is arranged on the side of the first connecting plate (112) facing the second connecting plate (113), the second shaft portion (32) is arranged on the side of the second connecting plate (113) facing the first connecting plate (112), the lower leaf (2) is provided with a third connecting plate (21) and a fourth connecting plate (22), the third connecting plate (21) and the fourth connecting plate (22) are respectively provided with a first shaft hole (211) and a second shaft hole (221), the first shaft portion (31) is installed in the first shaft hole (211), and the second shaft portion (32) is installed in the second shaft hole (221).

9. A dilator according to Claim 8, wherein, The third connecting plate (21) is provided with a third reinforcing rib (212) which is formed between the third connecting plate (21) and the lower leaf (2); The fourth connecting plate (22) is provided with a fourth reinforcing rib (222) which is formed between the fourth connecting plate (22) and the lower leaf (2).

10. The dilator of claim 8, wherein, The first connecting plate (112) and the second connecting plate (113) are integrally formed.

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