CN219070261U

CN219070261U - Expansion structure of vaginal dilator

Info

Publication number: CN219070261U
Application number: CN202222948919.6U
Authority: CN
Inventors: 魏信鑫; 熊斌; 张洋; 戴佳红; 张换梅; 陈杰
Original assignee: Hangzhou Weixin Medical Technology Co ltd
Current assignee: Hangzhou Weixin Medical Technology Co ltd
Priority date: 2022-11-01
Filing date: 2022-11-01
Publication date: 2023-05-26
Anticipated expiration: 2032-11-01

Abstract

The utility model discloses an expansion structure of a vaginal dilator, which comprises the following components: a main body; the main body comprises a holding part and a lower expansion wing; the upper expansion piece is rotationally connected with the main body, and a rotating shaft of the upper expansion piece on the main body is a first rotating shaft; the side expansion piece is rotationally connected with the main body, the side expansion piece comprises a left expansion piece and a right expansion piece, the rotation shaft of the left expansion piece on the main body is a second rotation shaft, and the rotation shaft of the right expansion piece on the main body is a third rotation shaft; the second rotation axis is not parallel to and does not intersect with the first rotation axis, the third rotation axis is not parallel to and does not intersect with the first rotation axis, and the second rotation axis intersects with the third rotation axis. The expansion assemblies of the gynecological disease diagnosis and treatment device can not interfere with each other and expand larger space, so that a larger visual field can be provided for doctors, and the gynecological disease diagnosis and treatment efficiency is greatly improved.

Description

Expansion structure of vaginal dilator

Technical Field

The utility model relates to the technical field of medical instruments, in particular to an expansion structure of a vaginal dilator.

Background

The vaginal dilator is also called as vaginal dilator, is a common medical instrument for gynecological disease examination, and is used for expanding the vagina by a certain space so as to facilitate doctors to observe and diagnose the affected part.

Most of the existing vaginal dilators are of a two-wing structure, and can not dilate in multiple directions when in use, so that the expanded space is narrow, the visual field is poor, and the diagnosis and treatment efficiency of diseases are affected; for some multi-wing vaginal dilators, the technology is not mature enough, the structural design is unreasonable, mutual interference is easy to occur among a plurality of expansion wings, and the expansion wings cannot be well matched with each other when in use, so that the expansion angle and the expansion space range are limited, and the diagnosis and treatment efficiency of diseases are greatly influenced.

In view of this, there is a need for improvements in the expansion structures of existing vaginal dilators.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides an expansion structure of a vaginal dilator.

The utility model discloses an expansion structure of a vaginal dilator, which comprises the following components: a main body; the main body comprises a holding part and a lower expansion wing; the upper expansion piece is rotationally connected with the main body, and a rotating shaft of the upper expansion piece on the main body is a first rotating shaft; the side expansion piece is rotationally connected with the main body, the side expansion piece comprises a left expansion piece and a right expansion piece, the rotation shaft of the left expansion piece on the main body is a second rotation shaft, and the rotation shaft of the right expansion piece on the main body is a third rotation shaft; the second rotation axis is not parallel to and does not intersect with the first rotation axis, the third rotation axis is not parallel to and does not intersect with the first rotation axis, and the second rotation axis intersects with the third rotation axis.

Preferably, the plane of the second rotation axis and the plane of the third rotation axis are side base planes, and the first rotation axis is parallel to the side base planes.

Preferably, the left expansion element and the right expansion element are mirror images, and an angular bisector of the second rotation axis and the third rotation axis is perpendicular to the first rotation axis.

Preferably, the projection of the first rotation axis on the side reference plane is a first projection line, the projection of the main body on the side reference plane is a main projection, the first projection line passes through the main projection and divides the main projection into a first projection and a second projection, and the area of the first projection is larger than that of the second projection; an intersection of the second rotation axis and the third rotation axis on the side reference plane is on one side of the second projection with respect to the first projection line.

Preferably, the distance d1 between the first rotation axis and the side reference surface is 3.0mm.

Preferably, the body comprises a grip portion and a lower expansion wing, the distance d2 between the furthest end of the lower expansion wing facing away from the lateral surface and the lateral surface being between 90mm and 128.6 mm.

Preferably, the distance d2 between the most distal end of the lower expansion wing facing away from the side base surface and the side base surface is 108.6mm.

Preferably, an angular bisector of the second rotation axis and the third rotation axis perpendicular to the first rotation axis is a main angular bisector, an included angle α between the second rotation axis and the main angular bisector ranges from 33.0 ° to 53.0 °, and an included angle β between the third rotation axis and the main angular bisector ranges from 33.0 ° to 53.0 °.

Preferably, the angle α between the second rotation axis and the principal angular bisector is 43.0 °.

Preferably, the angle β between the third rotation axis and the principal angular bisector is 43.0 °.

The beneficial effects of this application lie in:

because the second rotating shaft and the third rotating shaft of the two side expansion pieces are intersected and are not parallel and are not intersected with the first rotating shaft, a certain included angle can be formed between the two side expansion pieces and the lower expansion wings of the main body after the two side expansion pieces are opened, a conical expansion space can be formed between the two side expansion pieces and the lower expansion wings, so that the expansion space is larger, and a doctor can obtain a larger visual field during diagnosis and treatment;

in addition, because the first rotation axis of the upper expansion piece is parallel to the side reference surface formed by the second rotation axis and the third rotation axis, and the intersection point of the second rotation axis and the third rotation axis on the side reference surface is positioned at one side of the second projection relative to the first projection line, when the expansion structure is used, the upper expansion piece and the side expansion piece can not interfere with each other, a larger expansion space similar to a quadrangular pyramid structure is formed, a larger visual field is provided for doctors, and the diagnosis and treatment efficiency of gynecological diseases is greatly improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the positional relationship of the first, second and third rotational axes;

FIG. 3 is a schematic view of the positional relationship between the first rotational axis and the lateral reference surface;

FIG. 4 is a schematic diagram of a first projection line dividing a main projection into a first projection and a second projection;

FIG. 5 is a schematic view of an exploded construction of the main body, the plug block, the side expansion member and the connector;

fig. 6 is a schematic view of a partial structure at a in fig. 5.

Reference numerals illustrate: 1. a main body; 10. a main projection; 10a, first projection; 10b, second projection; 100. a plug-in position; 11. a grip portion; 111. rotating the column; 12. a lower expansion wing; 13. a limiting plate; 131. a guide projection; 14. a plug block; 141. a mounting hole; 142. a guide groove; 143. limiting notch; 15. a limit bump; 2. an upper expansion member; 20. a first rotation shaft; 201. a first projection line; 21. a connection hole; 3. a side expansion member; 3a, left expansion piece; 3a1, a second rotating shaft; 3b, right expansion piece; 3b1, a third rotation shaft; 31. a mating hole; 4. a connecting piece; 5. a side reference surface; 6. a principal angular bisector.

Detailed Description

Various embodiments of the utility model are disclosed in the following drawings, in which details of the practice are set forth in the following description for the purpose of clarity. However, it should be understood that these practical details are not to be taken as limiting the utility model. That is, in some embodiments of the utility model, these practical details are unnecessary. Moreover, for the sake of simplicity of the drawing, some well-known and conventional structures and elements are shown in the drawings in a simplified schematic manner.

It should be noted that all directional indications such as up, down, left, right, front, and rear … … in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture such as that shown in the drawings, and if the particular posture is changed, the directional indication is changed accordingly.

In addition, the descriptions of the "first", "second", etc. in this application are for descriptive purposes only and are not intended to specifically indicate a sequential or a cis-position, nor are they intended to limit the utility model, but are merely intended to distinguish between components or operations described in the same technical term, and are not to be construed as indicating or implying a relative importance or implying that the number of technical features indicated is not necessarily limited. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

For a further understanding of the utility model, its features and advantages, reference is now made to the following examples, which are illustrated in the accompanying drawings in which:

referring to fig. 1, 2 and 5, an expansion structure of a vaginal dilator according to an embodiment of the present utility model includes a main body 1, an upper expansion member 2 and a side expansion member 3, wherein the upper expansion member 2 and the side expansion member 3 are rotatably connected to the main body 1, a rotation axis of the upper expansion member 2 on the main body 1 is a first rotation axis 20, the side expansion member 3 includes a left expansion member 3a and a right expansion member 3b, the left expansion member 3a and the right expansion member 3b are mirror images of each other, the rotation axis of the left expansion member 3a on the main body 1 is a second rotation axis 3a1, and the rotation axis of the right expansion member 3b on the main body 1 is a third rotation axis 3b1.

Referring to fig. 1, 2 and 5, the main body 1 includes a grip portion 11 and a lower expansion wing 12, the grip portion 11 is of a shell structure having a cavity, the grip portion 11 is integrally of a long strip shape, the lower expansion wing 12 is of an arc-shaped sheet structure, the lower expansion wing 12 is of a long strip shape, the lower expansion wing 12 is integrally connected to one end of the grip portion 11, the grip portion 11 is provided with rotating columns 111 on two outer side walls close to the lower expansion wing 12, the rotating columns 111 are of a cylindrical structure and are integrally connected with the grip portion 11, the central lines of the two rotating columns 111 are positioned on the same straight line, and the axis of the rotating columns 111 coincides with the first rotating shaft 20; the upper expansion piece 2 is of a shell-shaped structure, the upper expansion piece 2 is provided with connecting holes 21, the connecting holes 21 are circular through holes, the diameters of the connecting holes 21 are the same as those of the rotating columns 111, the connecting holes 21 are provided with two connecting holes, the central lines of the two connecting holes 21 are positioned on the same straight line, the two connecting holes 21 are positioned on two sides of the upper expansion piece 2, and the two rotating columns 111 are respectively connected in the two connecting holes 21 in a rotating mode, so that the upper expansion piece 2 can rotate relative to the main body 1.

Referring to fig. 5 and 6, two plugging positions 100 are provided on the holding portion 11, and the two plugging positions 100 are respectively provided at two sides of the inner cavity of the holding portion 11; each plug-in position 100 comprises two limiting plates 13, the limiting plates 13 and the holding part 11 are integrally arranged, the two limiting plates 13 at each plug-in position 100 are parallel to each other and are provided with a gap, and the two parallel limiting plates 13 form the plug-in position 100; each limiting plate 13 is provided with a plurality of guide convex blocks 131, the guide convex blocks 131 are in strip shapes, the guide convex blocks 131 are located in the inserting positions 100, each inserting position 100 is internally provided with one inserting block 14, the inserting blocks 14 are provided with guide grooves 142 matched with the guide convex blocks 131 in shape, the number of the guide grooves 142 is the same as that of the guide convex blocks 131 and corresponds to that of the guide convex blocks 131, the inserting blocks 14 are inserted in the inserting positions 100, and each guide convex block 131 is inserted into one guide groove 142, so that the inserting blocks 14 are firmly connected in the inserting positions 100.

Referring to fig. 5 and 6, the plug block 14 is provided with a limit notch 143, the holding part 11 is provided with a limit bump 15 corresponding to the limit notch 143 at each plug position 100, and the limit bump 15 is clamped in the limit notch 143, so that the plug block 14 can be stably connected with the plug position 100; the plug-in block 14 is provided with mounting holes 141, the mounting holes 141 are threaded holes, and each mounting hole 141 is internally provided with a connecting piece 4, in the embodiment, the connecting piece 4 adopts a screw, and the connecting piece 4 is in threaded connection with the mounting hole 141.

Referring to fig. 5 and 6, the two side expanders 3 are both of a strip structure, the side expanders 3 are provided with the matching holes 31, the matching holes 31 are round holes, the center line of each matching hole 31 is located on the same straight line corresponding to the center line of one mounting hole 141, one connecting piece 4 passes through the matching hole 31 of the left expander 3a, the other connecting piece 4 passes through the matching hole 31 of the right expander 3b, and the matching holes 31 and the connecting pieces 4 are in clearance fit, so that the two side expanders 3 can rotate relative to the main body 1.

Referring to fig. 2 and 3, the first rotation shaft 20, the second rotation shaft 3a1, and the third rotation shaft 3b1 have the following spatial positional relationship: the first rotation axis 20 is not parallel to and does not intersect with the second rotation axis 3a1, the first rotation axis 20 is not parallel to and does not intersect with the third rotation axis 3b1, the second rotation axis 3a1 intersects with the third rotation axis 3b1, so that the second rotation axis 3a1 and the third rotation axis 3b1 have a common plane, the common plane of the second rotation axis 3a1 and the third rotation axis 3b1 is the side reference plane 5, and the first rotation axis 20 is parallel to the side reference plane 5.

Referring to fig. 2 to 4, one angular bisector of the second rotation axis 3a1 and the third rotation axis 3b1 is perpendicular to the first rotation axis 20, which is the principal angular bisector 6, and the other angular bisector is parallel to the first rotation axis 20, the projection of the first rotation axis 20 on the side reference plane 5 is a first projection line 201, the projection of the main body 1 on the side reference plane 5 is a main projection 10, the main projection 10 is a closed area, the first projection line 201 passes through the main projection 10, and divides the main projection 10 into a first projection 10a and a second projection 10b, wherein the area of the first projection 10a is larger than the area of the second projection 10b, and the intersection point of the second rotation axis 3a1 and the third rotation axis 3b1 on the side reference plane 5 is on one side of the second projection 10b with respect to the first projection line 201.

Referring to fig. 2 and 3, more specifically, in the present embodiment, the distance d1 between the first rotation axis 20 and the side reference surface 5 is 3.0mm, and the distance d2 between the most distal end of the lower expansion wing 12 facing away from the side reference surface 5 and the side reference surface 5 is between 90mm and 128.6mm, preferably d2 is taken to be 108.6mm; the angle α between the second rotation axis 3a1 and the main bisector 6 ranges between 33.0 ° and 53.0 °, preferably α is taken to be 43 °; the angle beta between the third rotation axis 3b1 and the main bisector 6 ranges between 33.0 deg. and 53.0 deg., preferably beta is taken to be 43 deg..

The implementation principle and the beneficial effects of the utility model are that as the second rotating shaft 3a1 and the third rotating shaft 3b1 of the two side expansion pieces 3 are intersected and are not parallel and are not intersected with the first rotating shaft 20, a certain included angle can be formed between the two side expansion pieces 3 and the lower expansion wings 12 of the main body 1 after the two side expansion pieces 3 are opened, a conical expansion space can be formed between the two side expansion pieces 3 and the lower expansion wings 12, so that the expansion space is larger, and a doctor can obtain a larger visual field during diagnosis and treatment;

in addition, since the first rotation axis 20 of the upper expansion member 2 is parallel to the side reference surface 5 formed by the second rotation axis 3a1 and the third rotation axis 3b1, and the intersection point of the second rotation axis 3a1 and the third rotation axis 3b1 on the side reference surface 5 is located at one side of the second projection 10b relative to the first projection line 201, when the expansion structure is in use, the upper expansion member 2 and the side expansion member 3 can not interfere with each other, a larger expansion space similar to a quadrangular pyramid structure is formed, a larger field of vision is provided for doctors, and diagnosis and treatment efficiency of gynecological diseases are greatly improved.

The above are merely embodiments of the present utility model, and are not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principles of the present utility model, should be included in the scope of the claims of the present utility model.

Claims

1. An expandable structure of a vaginal dilator, comprising:

a main body (1); the main body (1) comprises a holding part (11) and a lower expansion wing (12);

the upper expansion piece (2), the upper expansion piece (2) is rotationally connected with the main body (1), and a rotating shaft of the upper expansion piece (2) on the main body (1) is a first rotating shaft (20);

a side expansion piece (3), wherein the side expansion piece (3) is rotationally connected with the main body (1), the side expansion piece (3) comprises a left expansion piece (3 a) and a right expansion piece (3 b), the rotation axis of the left expansion piece (3 a) on the main body (1) is a second rotation axis (3 a 1), and the rotation axis of the right expansion piece (3 b) on the main body (1) is a third rotation axis (3 b 1);

the second rotation axis (3 a 1) is not parallel to and does not intersect with the first rotation axis (20), the third rotation axis (3 b 1) is not parallel to and does not intersect with the first rotation axis (20), and the second rotation axis (3 a 1) intersects with the third rotation axis (3 b 1).

2. The vaginal dilator's dilating arrangement according to claim 1, characterized in that the plane of the second rotation axis (3 a 1) and the third rotation axis (3 b 1) is a lateral reference plane (5), the first rotation axis (20) being parallel to the lateral reference plane (5).

3. The vaginal dilator's dilating arrangement according to claim 2, characterized in that the left dilating element (3 a) and the right dilating element (3 b) are mirror images of each other, and an angular bisector of the second rotation axis (3 a 1) and the third rotation axis (3 b 1) is perpendicular to the first rotation axis (20).

4. A vaginal dilator's dilating structure according to claim 3, characterized in that the projection of the first rotation axis (20) onto the lateral reference surface (5) is a first projection line (201), the projection of the main body (1) onto the lateral reference surface (5) is a main projection (10), the first projection line (201) passes through the main projection (10) and divides the main projection (10) into a first projection (10 a) and a second projection (10 b), the area of the first projection (10 a) being larger than the area of the second projection (10 b);

an intersection point of the second rotation axis (3 a 1) and the third rotation axis (3 b 1) on the side reference surface (5) is located on one side of the second projection (10 b) with respect to the first projection line (201).

5. The vaginal dilator's dilating arrangement according to claim 2, characterized in that the distance d1 between the first rotation axis (20) and the lateral surface (5) is 3.0mm.

6. The expansion structure of a vaginal dilator according to any one of claims 2-4, characterized in that the distance d2 between the most distal end of the lower expansion wings (12) facing away from the lateral reference surface (5) and the lateral reference surface (5) is between 90mm and 128.6 mm.

7. The expansion structure of a vaginal dilator according to claim 6, characterized in that the distance d2 between the most distal end of the lower expansion wings (12) facing away from the lateral base surface (5) and the lateral base surface (5) is 108.6mm.

8. A vaginal dilator's dilating arrangement according to claim 3, characterized in that the angular bisector of the second rotation axis (3 a 1) and the third rotation axis (3 b 1) perpendicular to the first rotation axis (20) is the main angular bisector (6), the angle α between the second rotation axis (3 a 1) and the main angular bisector (6) being in the range 33.0 ° -53.0 °, and the angle β between the third rotation axis (3 b 1) and the main angular bisector (6) being in the range 33.0 ° -53.0 °.

9. The vaginal dilator's dilating arrangement according to claim 8, characterized in that the angle α between the second rotation axis (3 a 1) and the main angular bisector (6) is 43.0 °.

10. The vaginal dilator's dilating arrangement according to claim 8, characterized in that the angle β between the third rotation axis (3 b 1) and the main angular bisector (6) is 43.0 °.