Adjustable vaginal speculum

Abstract

The invention discloses an adjustable vaginal dilator which comprises a control handle and a plurality of dilation blades for the inner wall of the vagina, and the dilation blades for the inner wall of the vagina are connected with an annular automatic reducing telescopic adjusting device used for controlling the dilation blades for the inner wall of the vagina to be opened or closed. The annular automatic reducing telescopic adjusting device comprises an outer shell and a plurality of blade telescopic adjusting devices, the blade telescopic adjusting devices are distributed in the outer shell in a circumferential array mode, and each group of expansion blades for the inner wall of the vagina is correspondingly connected with one group of blade telescopic adjusting devices. The blade telescopic adjusting devices are distributed and installed on the outer shell in a circular array mode. Compared with a duckbilled vaginal dilator in the prior art, the vaginal dilator capable of being automatically adjusted in a telescopic mode is more comfortable in the using process, the sense of fear of a patient in the using process is reduced, convenience is provided for medical staff in the vaginal wall suture operation process and the cervix operation process, and the operation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of auxiliary tools for vaginal dilation, and in particular to an adjustable vaginal dilator. Background Art

[0002] The vaginoplasty device, also known as the vaginal dilator, consists of two pages and a handle. It is mainly used for routine gynecological examinations and surgeries. The vaginoplasty device used for surgery is usually made of metal materials, and the vaginoplasty device used for general gynecological examinations is usually made of polystyrene, polypropylene and other materials.

[0003] The most common vaginal dilator in the prior art is a duckbill-type dilator. Before inserting the dilator into the vagina, a medical-grade lubricant should be applied to the surface of the vagina and inside the vagina. Then, the dilator should be placed vertically in a closed state, with the dilator handle horizontally, and gently inserted into the vagina. After the woman feels comfortable, the dilator should be slowly pushed into the vagina until the entire vagina is inserted. Then, the handle should be gently turned downward, and the duckbill should be slowly opened and fixed. The above-mentioned duckbill-type dilator is used roughly for gynecological examinations, causing discomfort to the patient during the examination, and even increasing the patient's fear of examination during use.

[0004] The Chinese invention patent with patent number CN202323327181.2 discloses a vaginal dilator, which belongs to the field of medical device technology. The present invention solves the problem that the particle points on the surface of the vaginal dilator in the prior art still cause discomfort to the patient after being inflated, and the fixing effect brought by the inflated particles is very limited. The invention comprises a dilator body, and also comprises a first belt body detachably connected to the patient, one end of the first belt body is detachably connected to the other end, a second belt body is detachably connected to the first belt body, a transparent part is provided on the second belt body, a connecting hole is provided on the transparent part, an elastic rope is provided at the connecting hole, and a clamping groove matching the elastic rope is provided at one end of the dilator body close to the inspection port.

[0005] Although the above-mentioned vaginal dilator forms a connection relationship with the human body when in use, thereby improving the fixing effect, the structure it adopts is a relatively common duckbill structure. Using the above-mentioned vaginal dilator in vaginal wall suturing surgery and cervical surgery can block the field of vision of medical staff, affect the surgical visual field, and make it inconvenient to suture the cervical area.

[0006] Therefore, an adjustable vaginal dilator becomes an urgent problem to be solved by the whole society. Summary of the invention

[0007] In order to solve the above technical problems, the technical solution provided by the present invention is as follows: an adjustable vaginal dilator, comprising a control handle and a plurality of expansion blades, the expansion blades are connected with an annular automatic variable diameter telescopic adjustment device for controlling the expansion blades to open or close, the annular automatic variable diameter telescopic adjustment device comprises an external shell and a plurality of blade telescopic adjustment devices, the plurality of blade telescopic adjustment devices are distributed in a circular array in the external shell, each group of expansion blades is correspondingly connected with a group of blade telescopic adjustment devices, and the blade telescopic adjustment devices are distributed in a circular array and installed on the external shell;

[0008] The blade telescopic adjustment device includes a plurality of movable adjustment tooth plates, gears and a driving motor, wherein the inner end of the movable adjustment tooth plate is connected to the outer side wall of the expansion blade, wherein the inner end of the movable adjustment tooth plate and the outer side wall of the expansion blade are integrally formed, and the movable adjustment tooth plate and the expansion blade are distributed in a vertical structure, the outer end of the movable adjustment tooth plate extends out of the external shell, the surface of the movable adjustment tooth plate is meshed with the gear, the central axis of the gear is connected to the driving motor, the gear is driven to rotate by the driving motor, the rotation of the gear drives the movable adjustment tooth plate to move up and down, and the movable adjustment tooth plate drives the expansion blade to achieve telescopic adjustment;

[0009] An observation hole is arranged at the center of the outer shell.

[0010] Furthermore, the expansion blades are arranged in an arc-shaped thin-sheet structure, and when the movable adjustment tooth plate moves to the lowermost end, the multiple expansion blades contact each other end to end to form a circular ring-shaped support tube.

[0011] Furthermore, the expansion blades are made of plastic material.

[0012] Furthermore, a fixing plate is arranged inside the outer shell, a guide groove body cooperating with the movable adjustment tooth plate is arranged on the fixing plate, and both ends of the rotating shaft of the gear are fixed on the fixing plate.

[0013] Furthermore, the fixed plates are provided with fixing frames on both sides, the external shell is fixedly mounted on the outside of the fixing frames, the external shell comprises a front side plate, a rear side plate and a plurality of partitions, the plurality of partitions are mounted between the front side plate and the rear side plate, and a rectangular hole is opened on the partition for the movable adjustment tooth plate to pass through.

[0014] The advantages of the invention compared with the prior art are:

[0015] The present invention adopts structures such as a control handle, multiple expansion blades and an annular automatic variable diameter telescopic adjustment device, eliminates the duckbill type vaginal dilator structure in the prior art, and provides a vaginal dilator that can be automatically telescopically adjusted. Compared with the duckbill type vaginal dilator in the prior art, the use process of the vaginal dilator is more comfortable and reduces the patient's fear during use.

[0016] The present invention adopts an annular automatic variable diameter telescopic adjustment device, which includes an external shell, multiple movable adjustment tooth plates, gears and drive motor and other structures. The drive motor drives the gears to rotate, and the rotation of the gears drives the movable adjustment tooth plates to move up and down, and the movable adjustment tooth plates drive the expansion blades to achieve telescopic adjustment; the above-mentioned multiple expansion blades can be opened and the support diameter can be adjusted as needed during the vaginal support process, which can reduce damage to the vagina during the vaginal support process. An observation hole is provided at the center of the external shell, and medical personnel can observe the surgical suturing situation through the observation hole, which solves the problem of blocking the surgical field of view by using a duckbill dilator in the prior art, provides convenience for medical personnel during vaginal wall suturing surgery and cervical surgery, and improves surgical efficiency.

[0017] The present invention adds a first control button and a second control button on the control handle for automatically telescoping and adjusting the supporting diameter of the vaginal dilator. Medical personnel only need to operate one button to control the expansion blades to open or close during the use of the above-mentioned vaginal dilator, and the operation is simple and practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional structure of the adjustable vaginal dilator embodiment 1 of the present invention is shown in FIG. Figure 1 ;

[0019] Figure 2 The three-dimensional structure of the adjustable vaginal dilator embodiment 1 of the present invention is shown in FIG. Figure 2 ;

[0020] Figure 3 A side view of an adjustable vaginal dilator embodiment 1 of the present invention Figure 1 ;

[0021] Figure 4 A side view of an adjustable vaginal dilator embodiment 1 of the present invention Figure 2 ;

[0022] Figure 5 It is a structural schematic diagram of a ring-shaped automatic variable diameter telescopic adjustment device;

[0023] Figure 6 It is a partial schematic diagram of the annular automatic variable diameter telescopic adjustment device;

[0024] Figure 7 for Figure 6A partial enlarged view of the middle A;

[0025] Figure 8 It is a schematic diagram of the coordination between the movable adjustment tooth plate and the gear;

[0026] Fig. 9 This is a schematic structural diagram of a second embodiment of an adjustable vaginal dilator of the present invention.

[0027] Among them, 1. control handle, 2. expansion blades, 3. external shell, 3-1. front side plate, 3-2. rear side plate, 3-3. partition, 3-31. rectangular hole, 4. movable adjustment tooth plate, 5. gear, 6. drive motor, 7. observation hole, 8. fixed plate, 9. guide groove body, 10. fixed frame, 11. first control button, 12. second control button, 13. grip part, 14. limit plate, 15. support sheet. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0029] The present invention is described in detail with reference to the accompanying drawings.

[0030] The present invention provides an adjustable vaginal dilator in a specific implementation, including a control handle 1 and a plurality of expansion blades 2, the expansion blades 2 are connected to an annular automatic variable diameter telescopic adjustment device for controlling the expansion blades 2 to open or close, the annular automatic variable diameter telescopic adjustment device includes an external shell 3 and a plurality of blade telescopic adjustment devices, the plurality of blade telescopic adjustment devices are distributed in a circular array in the external shell 3, each group of expansion blades 2 is correspondingly connected to a group of blade telescopic adjustment devices, and the blade telescopic adjustment devices are distributed in a circular array and installed on the external shell 3;

[0031] The blade telescopic adjustment device includes a plurality of movable adjustment tooth plates 4, gears 5 and a driving motor 6, the inner side end of the movable adjustment tooth plate 4 is connected to the outer side wall of the expansion blade 2, and the movable adjustment tooth plate 4 and the expansion blade 2 are distributed in a vertical structure, the outer side end of the movable adjustment tooth plate 4 extends out of the external shell 3, the surface of the movable adjustment tooth plate 4 is meshed and connected with the gear 5, the central axis of the gear 5 is connected to the driving motor 6, the driving motor 6 drives the gear 5 to rotate, the rotation of the gear 5 drives the movable adjustment tooth plate 4 to move up and down, and the movable adjustment tooth plate 4 drives the expansion blade 2 to achieve telescopic adjustment;

[0032] An observation hole 7 is provided at the center of the outer shell 3 .

[0033] Embodiment 1:

[0034] The expansion blades 2 are provided in four groups, and the expansion blades 2 are distributed in a circular array with the center of the outer shell 3 as the center. The expansion blades 2 are provided in a rectangular strip structure.

[0035] When the present embodiment is in use, the control handle 1 is held by hand, and when the diameter of the expansion blade 2 needs to be reduced, the second control button 9 on the control handle 1 is used, and the second control button 9 controls the corresponding drive motor 6 to rotate in the opposite direction, and the drive motor 6 rotates in the opposite direction to drive the gear 5 to rotate counterclockwise. Since the surface of the movable adjustment tooth plate 4 is meshed and connected with the gear 5, the gear 5 rotates counterclockwise to drive the corresponding movable adjustment tooth plate 4 to move downward, and multiple movable adjustment tooth plates 4 move downward to drive the expansion blades 2 connected to their bottom ends to gather toward the center. Through the above structure, the expansion blades 2 can be gathered into a circular tubular structure, and the drive motor can be turned off.

[0036] Holding the control handle 1 by hand, the front end of the expansion blades 2 distributed with a circular tubular structure is inserted into the patient's vagina. Since the circular tubular structure formed by the expansion blades 2 has a small diameter, the comfort of the vaginal speculum during insertion into the patient's vagina can be increased.

[0037] After the above-mentioned vaginal dilator is inserted into the vagina, the first control button 11 on the control handle 1 can be pressed by hand. The first control button 11 controls the corresponding driving motor 6 to rotate forward. After the driving motor 6 rotates forward, it drives the gear 5 to rotate clockwise. Since the surface of the movable adjustment tooth plate 4 is meshed with the gear 5, the gear 5 rotates clockwise and drives the corresponding movable adjustment tooth plate 4 to move upward. The multiple movable adjustment tooth plates 4 move upward and drive the expansion blades 2 connected to their bottom ends to expand outward, thereby automatically increasing the support diameter of the above-mentioned vaginal dilator and supporting the patient's vagina.

[0038] Since an observation hole 7 is provided at the center of the outer shell 3, during vaginal wall suture surgery and cervical surgery, medical staff can observe the internal surgical conditions through the corresponding observation hole 7 while supporting the patient's vagina. The observation hole 7 in the present invention is observed when the expansion blades are open and in a supporting state, and at this time, the movable adjustment tooth plate 4 moves upward (such as Figure 4 As shown), it is obvious that the movable rack plate will not block the observation hole; when the medical staff performs cervical suture surgery on the patient, the medical staff can observe the suture status of the patient's cervix through the observation hole 7, which solves the problem of the duckbill dilator in the prior art blocking the surgical field of view. The above structure is convenient for medical staff to observe the cervical suture status during the operation, provides convenience for medical staff during the cervical suture surgery, and improves the efficiency of the operation.

[0039] Since the present embodiment uses four groups of expansion blades 2, when the diameters of the four groups of expansion blades 2 are adjusted to the minimum, the four groups of expansion blades 2 are in contact end to end to form a circular tubular vaginal dilator support structure.

[0040] In the present invention, a first control button and a second control button are added to the control handle, and the diameter of the vaginal dilator can be controlled by one button, so that automatic telescopic adjustment can be performed according to the vaginal conditions of different patients, and the one-button operation is convenient.

[0041] Embodiment 2:

[0042] The expansion blades 2 are provided in six groups, and the expansion blades 2 are distributed in a circular array with the center of the outer shell 3 as the center.

[0043] Since the present embodiment uses 6 groups, when the diameters of the 6 groups of expansion blades 2 are adjusted to the minimum, the 6 groups of expansion blades 2 are in contact end to end to form a circular tubular vaginal dilator support structure.

[0044] The specific adjustment of the supporting diameter of the expansion blades is the same as that in the first embodiment, and the applicant will not elaborate on it.

[0045] No matter the present invention adopts 4 groups of expansion blades or 6 groups of expansion blades, there are operating gaps between the expansion blades, which is convenient for operating the suture needle in the above-mentioned space gap.

[0046] The expansion blades 2 are arranged in an arc thin sheet structure, and when the movable adjustment tooth plate 4 moves to the lowest end, the multiple expansion blades 2 contact each other end to form a circular support tube. The circular tube structure can increase the comfort of inserting the vaginal speculum into the patient's vagina.

[0047] As a further elaboration of the present invention, the expansion blades 2 are made of plastic material. The use of hard plastic can stabilize the vagina and avoid the occurrence of unstable support at the front end of the expansion blades.

[0048] As a further elaboration of the present invention, a fixing plate 8 is provided inside the outer housing 3, a guide groove 9 is provided on the fixing plate 8 to cooperate with the movable adjustment tooth plate 4, and both ends of the rotating shaft of the gear 5 are fixed on the fixing plate 8. The guide groove plays a guiding role in the process of moving the movable adjustment tooth plate 4, thereby increasing the stability of the movable adjustment tooth plate during the movement.

[0049] As a further elaboration of the present invention, the fixing frame 10 is fixed on both sides of the fixing plate 8, and the external shell 3 is fixedly installed on the outside of the fixing frame 10. The external shell 3 includes a front side plate 3-1, a rear side plate 3-2 and a plurality of partitions 3-3, and the plurality of partitions 3-3 are installed between the front side plate 3-1 and the rear side plate 3-2. A rectangular hole 3-31 is provided on the partition 3-3 for the movable adjustment tooth plate 4 to pass through. The front side plate 3-1 and the rear side plate 3-2 are uniformly arranged in a circular plate-like structure, and the partitions 3-3 are all arranged in a rectangular plate-like structure of the same size, and the partitions 3-3 are arranged in a circular array structure between the plastic front side plate 3-1 and the rear side plate 3-2 with the center of the circle of the front side plate 3-1 and the rear side plate 3-2 as the center; the above-mentioned external shell 3 is used to support and fix the movable adjustment tooth plate 4, the gear 5 and the driving motor 6; the above-mentioned external shell can protect the gear and the movable adjustment tooth plate to prevent medical personnel from contacting the gear and the movable adjustment tooth plate, which provides convenience for medical personnel. Among them, the structure of the rectangular hole 3-31 is set to facilitate the movement and extension of the adjustment tooth plate 4.

[0050] As a further elaboration of the present invention, a limit plate 14 is provided at the top of the movable adjustment tooth plate 4, the limit plate 14 is integrally formed with the movable adjustment tooth plate 4, and the length of the limit plate 14 is greater than the length of the rectangular hole 3-31. The structural setting of the limit plate prevents the movable adjustment tooth plate from falling off from the external housing during movement.

[0051] As a further elaboration of the present invention, the top end of the control handle 1 is fixedly connected to the rear side plate 3-2, and a first control button 11 and a second control button 9 for controlling the drive motor 6 are arranged on the control handle 1. The first control button 11 is used to control the expansion blades 2 to open, and the second control button 9 is used to control the expansion blades 2 to close. In order to facilitate the control of the forward and reverse rotation of the drive motor, the first control button 11 and the second control button 9 are arranged on the control handle. Figure 1 It can be seen that in order to facilitate identification of the functions of the first control button 11 and the second control button 9, the first control button 11 is set to a + shape, and the support diameter of the vaginal dilator is increased by pressing the first control button in the + shape, and the second control button 9 is set to a - shape, and the support diameter of the vaginal dilator is reduced by pressing the second control button in the - shape. Obviously, the above structure is more convenient for medical personnel to operate to realize the automatic telescopic adjustment of the vaginal dilator.

[0052] As a further explanation of the present invention, gripping parts 13 are provided on both sides of the control handle 1, and the gripping parts 13 are provided in an inwardly concave arc-shaped structure. The structural setting of the gripping parts facilitates the medical staff to hold the control handle, providing convenience for the medical staff.

[0053] As a further elaboration of the present invention, a plurality of expansion blades 2 are distributed in a circular array with the center of the outer shell 3 as the center, and a support sheet 15 is connected to the outer peripheral surface of the insertion end of the expansion blade 2. The structural setting of the support sheet can expand or contract according to the expansion blade, so that the structure can more easily lift the inner wall when in use, and the use of a rounded ring structure can prevent trauma to the patient.

[0054] As a further elaboration of the present invention, the insertion end of the expansion blade 2 is provided with an inwardly bent arc-shaped structure. The inwardly bent arc-shaped structure can increase the comfort of the vaginal speculum during the insertion into the vagina, reduce the pain during the gynecological outpatient examination, facilitate the gynecological outpatient examination, and facilitate the vaginal wall suture surgery and cervical surgery.

[0055] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. An adjustable vaginal dilator, comprising a control handle (1) and a plurality of dilating blades (2), characterized in that: The expansion blades (2) are connected to an annular automatic variable diameter telescopic adjustment device for controlling the expansion blades (2) to open or close. The annular automatic variable diameter telescopic adjustment device comprises an external shell (3) and a plurality of blade telescopic adjustment devices. The plurality of blade telescopic adjustment devices are distributed in a circular array in the external shell (3). Each group of expansion blades (2) is correspondingly connected to a group of blade telescopic adjustment devices. The blade telescopic adjustment devices are distributed in a circular array and are installed on the external shell (3). The blade telescopic adjustment device comprises a plurality of movable adjustment tooth plates (4), a gear (5) and a driving component (6); the inner end of the movable adjustment tooth plate (4) is connected to the outer side wall of the expansion blade (2), and the movable adjustment tooth plate (4) and the expansion blade (2) are distributed in a vertical structure; the outer side end of the movable adjustment tooth plate (4) extends out of the external shell (3); the surface of the movable adjustment tooth plate (4) is meshed with the gear (5); the central axis of the gear (5) is connected to the driving component (6); the gear (5) is driven to rotate by the operation of the driving component (6); the rotation of the gear (5) drives the movable adjustment tooth plate (4) to move up and down; the movable adjustment tooth plate (4) drives the expansion blade (2) to achieve telescopic adjustment; An observation hole (7) is provided at the center of the outer shell (3).

2. The adjustable vaginal dilator according to claim 1, characterized in that: The expansion blades (2) are arranged in the form of circular arc thin sheets. When the movable adjustment tooth plate (4) moves to the lowermost end, the plurality of expansion blades (2) contact each other end to end to form a circular ring-shaped support tube.

3. The adjustable vaginal dilator according to claim 2, characterized in that: The expansion blades (2) are made of plastic material.

4. The adjustable vaginal dilator according to claim 1, characterized in that: A fixing plate (8) is arranged inside the outer shell (3), a guide groove (9) cooperating with the movable adjustment tooth plate (4) is arranged on the fixing plate (8), and both ends of the rotating shaft of the gear (5) are fixed on the fixing plate (8).

5. The adjustable vaginal dilator according to claim 4, characterized in that: The fixing plates (8) are provided with fixing frames (10) on both sides, the outer shell (3) is fixedly mounted on the outer sides of the fixing frames (10), the outer shell (3) comprises a front side plate (3-1), a rear side plate (3-2) and a plurality of partition plates (3-3), the plurality of partition plates (3-3) being mounted between the front side plate (3-1) and the rear side plate (3-2), and a rectangular hole (3-31) for the movable adjusting tooth plate (4) to pass through is opened on the partition plates (3-3).

6. The adjustable vaginal dilator according to claim 5, characterized in that: A limit plate (14) is provided at the top end of the movable adjustment tooth plate (4); the limit plate (14) and the movable adjustment tooth plate (4) are integrally formed; and the length of the limit plate (14) is greater than the length of the rectangular hole (3-31).

7. The adjustable vaginal dilator according to claim 1, characterized in that: The top end of the adjustment handle (1) is fixedly connected to the rear side plate (3-2), and a first control button (11) and a second control button (12) for controlling the drive component (6) are arranged on the adjustment handle (1), wherein the first control button (11) is used to control the expansion blades (2) to open, and the second control button (12) is used to control the expansion blades (2) to close.

8. The adjustable vaginal dilator according to claim 7, characterized in that: Grip portions (12) are provided on both sides of the adjustment handle (1), and the grip portions (12) are provided in an inwardly concave arc-shaped structure.

9. An adjustable vaginal dilator according to any one of claims 1 to 8, characterized in that: The expansion blades (2) are provided in 6 to 9 groups, and the plurality of expansion blades (2) are distributed in a circular array with the center of the outer shell (3) as the center, and a support sheet (15) is connected to the outer peripheral surface of the insertion end of the expansion blade (2).

10. The adjustable vaginal dilator according to claim 9, characterized in that: The insertion end of the expansion blade (2) is arranged in an inwardly bent arc-shaped structure.

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