Multidirectional vaginal speculum
By designing the transmission mechanism and diversion structure of the multi-directional vaginal dilator, the problems of vaginal dilators blocking the field of vision and causing friction damage are solved, all-round and safe expansion of the vagina is achieved, and the user experience and operational convenience are improved.
Patent Information
- Application Number
- CN202511113749.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-11
- Publication Date
- 2025-10-10
AI Technical Summary
Existing vaginal dilators may cause discomfort to patients during use, the bulging of the vaginal wall may block the field of vision, and may cause harm to patients when penetrating into the vagina.
A multi-directional vaginal dilator was designed, which uses a transmission mechanism to control the opening and closing of the upper and lower blades and the side support blades. Combined with the diversion structure and guide parts, it can achieve all-round expansion of the vagina, avoid obstruction of the inner wall and reduce friction damage.
It effectively avoids the bulging of the vaginal wall from blocking the field of vision, reduces discomfort during use, reduces friction damage to the vagina, and improves the convenience and safety of operation.
Smart Images

Figure CN120753579A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of vaginal dilators, and in particular to a multi-directional vaginal dilator. Background Art
[0002] Vaginal dilator is a commonly used medical device in gynecology. Its main function is to stretch the vagina during gynecological examination, treatment or surgery, fully exposing the vagina and cervix, and providing sufficient space and field of view for doctors to observe the health of the vaginal wall and cervix and perform related operations, so as to facilitate doctors to accurately assess the condition and perform operations, reducing damage to surrounding tissues.
[0003] It typically consists of two metal or plastic blades and a handle that controls their opening and closing. The blades are typically duckbill-shaped, narrow at the front and wider at the back, adapting to the vaginal anatomy. The handle controls the opening and closing of the blades, allowing the physician to adjust the size of the dilator to suit the patient's vaginal size and the examination and procedure requirements.
[0004] The use of a vaginal dilator is very effective. It can effectively dilate the vagina, allowing it to fully open, allowing the doctor to clearly see the entire vagina and cervix, and helping to accurately diagnose various diseases of the vagina and cervix, such as inflammation, injury, and tumors. At the same time, it also facilitates various gynecological operations, improves the accuracy and safety of operations, helps to timely detect and treat gynecological diseases, and protects women's reproductive health. However, the use process may cause some discomfort to the patient, and during the actual examination process, some patients may have excessively thickened and bulging vaginal walls, resulting in obstruction of the operating field. Summary of the Invention
[0005] The purpose of the present invention is to solve the above technical problems and provide a multi-directional vaginal dilator that can dilate both sides of the vagina through the side support blades on both sides, avoiding the two sides of the vaginal wall blocking the operating field of view. The main concept is:
[0006] A multi-directional vaginal dilator includes an expansion mechanism, an adjustment assembly, and a mounting bracket. The adjustment assembly includes a transmission mechanism and a trigger mechanism. The expansion mechanism and the mounting bracket are movably connected via the transmission mechanism. The trigger mechanism drives the transmission mechanism to move. The expansion portion includes a first expansion portion for longitudinal adjustment and a second expansion portion for lateral adjustment. The transmission mechanism includes a first transmission assembly and a second transmission assembly.
[0007] The mounting bracket is an annular structure, the first expansion portion is provided at both longitudinal ends of the mounting bracket, and the second expansion portion is provided at both transverse ends of the mounting bracket, and the transmission mechanism is used to realize the opening and closing of the first expansion portion and the second expansion portion along the mounting bracket;
[0008] The first expansion portion includes an upper blade and a lower blade, and the upper blade and the lower blade are movably connected by a first transmission assembly. The second expansion portion includes two side support blades, which are installed on both sides of the first expansion portion and are movably connected by a second transmission assembly.
[0009] The first expansion portion and the second expansion portion form a columnar cylindrical structure in a closed state.
[0010] This solution uses a transmission mechanism to expand the upper blades and the lower blades, so that the transmission mechanism that controls the opening and closing of the first expansion part and the second expansion part is adjusted within the annular bracket. By adjusting the first transmission component, the upper and lower ends of the vagina are expanded, and then the two sides of the vagina are expanded through the second expansion part, thereby achieving expansion of both sides of the vagina and avoiding obstruction of the field of vision by both sides of the vagina.
[0011] Preferably, the expansion mechanism further comprises a transition portion, which is disposed on a side of the expansion mechanism away from the mounting bracket. The transition portion comprises an upper transition plate and two side transition plates, the upper transition plate being connected to the upper blade, and the side transition plates being respectively connected to the side support blades. In this solution, by disposing a three-piece transition portion at the end of the expansion mechanism, the end of the expansion mechanism in the closed state can make an arc transition. When the expansion mechanism enters the vagina, the transition portion disposed at the front end of the expansion mechanism can gradually penetrate deeper into the vagina. Combined with the cylindrical structure of the expansion mechanism in the closed state, this can reduce the sensation of a foreign body entering the vagina.
[0012] The second aspect of the present invention aims to address the technical problem of blood and other bodily fluids in the vagina flowing out and contaminating the examination environment when the dilator is used to dilate the vagina. Furthermore, the lower blade is provided with a diversion structure, which includes a diversion groove extending along the lower blade. This solution, by providing a diversion device on the lower blade, allows bodily fluids in the patient's vagina to flow along the diversion groove provided on the lower blade after the dilator is opened, thereby preventing the bodily fluids from being retained in the body and unable to be discharged, which affects the visual field.
[0013] Preferably, the output end of the diversion structure is connected to a hose, a drainage hole is defined at the bottom of the lower blade, an annular countersunk hole is provided on the outer wall of the drainage hole, a first annular magnet is disposed within the countersunk hole, and a second annular magnet is disposed at one end of the connecting hose, with the connecting hose and the drainage hole being magnetically connected. The magnetic connection allows for quick docking and disassembly of the connecting hose and the drainage hole, reducing operational difficulty. Furthermore, after the dilator has completed draining body fluids, the connecting hose can also be quickly removed. Furthermore, as the dilator continues to penetrate deeper into the vagina, the first annular magnet disposed within the countersunk hole will not cause scratches to the vaginal opening.
[0014] Preferably, a hand-held part is provided at the lower end of the mounting bracket, and the hand-held part is provided with a trigger mechanism, the trigger mechanism includes a trigger module and a control module, the control module is electrically connected to the first transmission component and the second transmission component, and the trigger module is used to start the control module; the hand-held part is also provided with a power supply module.
[0015] Preferably, a guide hole is formed in the outer wall of the mounting bracket, and the transmission mechanism includes a telescopic member and a telescopic cylinder. The telescopic cylinder is mounted on the outer wall of the mounting bracket, one end of the telescopic member is mounted on the telescopic cylinder, and the other end of the telescopic member extends through the guide hole and is connected to the expansion mechanism. During use, the telescopic member is retracted and extended by the telescopic cylinder. When the telescopic member is retracted, the expansion mechanism moves outward along the radial direction of the mounting bracket to expand the expansion mechanism. When the telescopic member is extended, the expansion mechanism moves inward along the radial direction of the mounting bracket to close the expansion mechanism.
[0016] The third aspect of the present invention aims to solve the technical problem of prior art dilators causing excessive harm to patients when inserted deep into the vagina. Furthermore, the invention further comprises a guide member, which is a semicircular structure, the inner diameter of which matches the outer diameter of the lower blade of the expansion portion; the guide member comprises an insertion end and a stopper end, the insertion end being provided with an inwardly rounded transition, the stopper end being provided with a baffle, and an outwardly rounded transition being provided between the stopper end and the baffle. Prior art duckbill-type dilators must be inserted vertically along the contour of the vagina, and then rotated 90 degrees after entering the vagina so that the dilator stretches the vagina up and down. This rotation of the prior art dilators within the body is the root cause of pain for patients; in this solution, before inserting the dilator, the circular guide member is first inserted along the vagina. After the guide member is inserted, the dilator of this solution enters the vagina along the inner wall of the guide member, so that the dilator does not rub against the vaginal vulva when entering the body. Furthermore, the provision of the guide member also allows the dilator to enter the vagina in a straight direction, allowing the dilator to be quickly installed in place.
[0017] Preferably, the guide member has an axially defined positioning groove at its bottom, and the guide structure of the lower blade protrudes toward the outer wall, with the positioning groove accommodating the protrusion on the outer wall of the guide structure. A guide hole is defined at the bottom of the guide member's limiting end, and a second annular magnet is mounted in the guide hole. The positioning groove and the protrusion on the outer wall cooperate to constrain the rotational movement of the dilator as it enters the guide member. Once the dilator enters the vagina, the lower blade automatically positions itself with the guide member's limiting end. Precise design ensures that the first annular magnet in the drainage hole of the lower blade is coaxially aligned with the second annular magnet in the guide member, completing the quick connection between the connecting hose and the guide structure.
[0018] The beneficial effects of the present invention are:
[0019] The upper blade and the lower blade are expanded through the transmission mechanism, so that the transmission mechanism that controls the opening and closing of the first expansion part and the second expansion part is adjusted in the annular bracket. By adjusting the first transmission component, the upper and lower ends of the vagina are expanded, and then the two sides of the vagina are expanded through the second expansion part, thereby achieving expansion of both sides of the inner wall of the vagina and avoiding obstruction of the field of vision due to bulging of the inner wall. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a structural schematic diagram of the present invention.
[0021] Figure 2 It is a structural cross-sectional view of the present invention.
[0022] Figure 3 It is a structural side view of the present invention.
[0023] Figure 4 It is a structural cross-sectional view of the guide member of the present invention.
[0024] Figure 5 It is a structural schematic diagram of the lower blade of the present invention.
[0025] The reference numerals include: 1. mounting bracket; 11. guide hole; 2. upper blade; 21. upper transition plate; 3. lower blade; 31. guide groove; 32. drainage hole; 33. first ring magnet; 4. side support blade; 41. side transition plate; 5. transmission mechanism; 51. telescopic rod; 52. telescopic motor; 6. trigger mechanism; 7. guide member; 71. insertion end; 72. limit end; 73. positioning groove; 74. guide hole; 75. second ring magnet; 76. connecting hose. DETAILED DESCRIPTION
[0026] In order to make the objectives, technical solutions and advantages of the embodiments more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with certain aspects of the present disclosure as detailed in the appended claims.
[0027] In this disclosure, unless otherwise stated, directional terms such as "inner" and "outer" are defined based on the contours of the corresponding components. Terms such as "first" and "second" used in this disclosure are intended to distinguish one element from another and do not have a sequential or important meaning.
[0028] like Figure 1-Figure 5As shown, this embodiment provides a multi-directional vaginal dilator, including an expansion mechanism, an adjustment assembly, and a mounting bracket 1. The adjustment assembly includes a transmission mechanism 5 and a trigger mechanism 6. The expansion mechanism and the mounting bracket 1 are movably connected via the transmission mechanism 5. The trigger mechanism 6 drives the transmission mechanism 5 to move. The expansion portion includes a first expansion portion for longitudinal adjustment and a second expansion portion for lateral adjustment. The transmission mechanism 5 includes a first transmission assembly and a second transmission assembly.
[0029] The mounting bracket 1 is an annular structure, with first expansion portions provided at both longitudinal ends of the mounting bracket 1 and second expansion portions provided at both transverse ends of the mounting bracket 1. The transmission mechanism 5 is used to realize the opening and closing of the first expansion portion and the second expansion portion along the mounting bracket 1.
[0030] The first expansion portion includes an upper blade 2 and a lower blade 3, which are movably connected via a first transmission assembly. The second expansion portion includes two side support blades 4, which are mounted on both sides of the first expansion portion and are movably connected via a second transmission assembly.
[0031] like Figure 1 and Figure 3 As shown, the first expansion portion and the second expansion portion form a columnar cylindrical structure in the closed state.
[0032] In this embodiment, the upper blade 2 and the lower blade 3 are expanded through the transmission mechanism 5, so that the transmission mechanism 5 that controls the opening and closing of the first expansion part and the second expansion part is adjusted in the annular bracket. By adjusting the first transmission component, the upper and lower ends of the vagina are expanded, and then the two sides of the vagina are expanded through the second expansion part, thereby expanding both sides of the vagina and avoiding obstruction of the field of vision on both sides.
[0033] The expansion mechanism also includes a transition portion, which is arranged on the side of the expansion mechanism away from the mounting bracket. The transition portion includes an upper transition plate 21 and two side transition plates 41. The upper transition plate 21 is connected to the upper blade 2, and the side transition plates 41 are respectively connected to the side support blades 4.
[0034] This embodiment utilizes a three-piece transition section at the end of the dilator mechanism, allowing the end of the dilator mechanism to form an arc-shaped transition when closed. This allows the transition section at the front end of the dilator mechanism to gradually penetrate deeper into the vagina when the dilator mechanism enters the vagina. Combined with the dilator mechanism's cylindrical structure when closed, this reduces the sensation of the dilator entering the vagina. Furthermore, the connection between the three transition sections is not sealed, allowing the dilator mechanism to maintain internal vaginal pressure and expel it when entering the vagina.
[0035] like Figure 5As shown, the lower blade 3 of this embodiment is provided with a guide structure, which includes a guide groove 31, which extends along the lower blade 3. By providing a guide device on the lower blade 3, the body fluid in the patient's vagina can be drained along the guide groove 31 provided on the lower blade 3 after the vaginal dilator is opened, thereby preventing the body fluid from being retained in the body and unable to be discharged, which affects the visual effect.
[0036] like Figure 3 As shown, the output end of the guide structure is connected to the hose 76, the bottom of the lower blade 3 is provided with a drainage hole 32, the outer wall of the drainage hole 32 is provided with an annular countersunk hole, and a first annular magnet 33 is provided in the countersunk hole. A second annular magnet 75 is provided at one end of the connecting hose 76, and the connecting hose 76 and the drainage hole 32 are connected magnetically.
[0037] The magnetic connection allows the connecting hose 76 and the drainage hole 32 to be quickly docked and disassembled, reducing the difficulty of operation. After the dilator has completed discharging the body fluid, the connecting hose 76 can also be quickly removed; and when the dilator continues to penetrate deeper into the vagina, the first annular magnet 33 set in the countersunk hole will not cause scratches to the vaginal opening.
[0038] In this embodiment, a handheld portion is provided at the lower end of the mounting bracket 1, and a trigger mechanism 6 is provided on the handheld portion. The trigger mechanism 6 includes a trigger module and a control module. The control module is electrically connected to the first transmission component and the second transmission component. The trigger module is used to start the control module; the handheld portion is also provided with a power supply module.
[0039] The trigger module can be a toggle switch or a rotary switch. In this embodiment, two trigger modules are provided to control the first and second transmission assemblies, respectively. In actual use, one toggle switch triggers the first transmission assembly, causing the upper and lower blades 2 and 3 to expand. The other toggle switch triggers the second transmission assembly, causing the side support blades 4 to expand. It's worth noting that the handle is oriented downward during use, and the provision of a toggle switch or rotary switch prevents accidental activation when pressure is applied to the handle.
[0040] In addition, the power supply module includes a battery and a power interface for charging the battery, so that when the vagina is dilated by the vaginal dilator, there is no need to connect additional wires.
[0041] like Figure 1 and Figure 2 As shown, a guide hole 11 is opened on the outer wall of the mounting bracket 1, and the transmission mechanism 5 includes a telescopic member 51 and a telescopic cylinder 52. The telescopic cylinder 52 is installed on the outer wall of the mounting bracket 1, one side of the telescopic member 51 is installed on the telescopic cylinder 52, and the other end of the telescopic member 51 passes through the guide hole 11 and is connected to the expansion mechanism.
[0042] During use, the retraction and extension of the telescopic part 51 is controlled by the telescopic cylinder 52. When the telescopic part 51 is retracted, the expansion mechanism moves outward along the radial direction of the mounting bracket 1 to achieve the expansion of the expansion mechanism. When the telescopic part 51 is extended, the expansion mechanism moves inward along the radial direction of the mounting bracket 1 to close the expansion mechanism.
[0043] This embodiment also includes a guide member 7, which is a semicircular structure. The inner diameter of the guide member 7 matches the outer diameter of the lower blade 3 of the expansion portion; the guide member 7 includes an insertion end 71 and a limiting end 72, the insertion end 71 is provided with an inward chamfered transition, the limiting end 72 is provided with a baffle, and an outward chamfered transition is provided between the limiting end 72 and the baffle.
[0044] The duckbill-shaped dilator of the prior art needs to be inserted vertically along the contour of the vagina, and then the duckbill-shaped dilator is rotated ninety degrees after entering the vagina so that the dilator can stretch the vagina up and down. The rotation of the prior art dilator in the body is the source of pain for the patient; before inserting the dilator, the arc-shaped guide member 7 is first inserted along the vagina. After the guide member 7 is inserted, the dilator of this solution enters the vagina along the inner wall of the guide member 7, so that the dilator will not generate friction with the vulva when entering the body, and the setting of the guide member 7 can also make the direction of the dilator entering the vagina go straight, so the dilator can be quickly installed in place.
[0045] like Figure 4 As shown, the bottom of the guide member 7 is provided with an axial positioning groove 73. The flow guide structure of the lower blade 3 protrudes toward the outer wall, and the positioning groove 73 accommodates the outer wall protrusion of the flow guide structure. The bottom of the limiting end 72 of the guide member 7 is provided with a flow guide hole 74, and the flow guide hole 74 is mounted with a second annular magnet 75. The positioning groove 73 cooperates with the outer wall protrusion to constrain the rotational movement of the dilator as it enters the vagina along the guide member 7. Once the dilator enters the vagina, the lower blade 3 is automatically positioned with the limiting end 72 of the guide member 7. Through precise design, the first annular magnet 33 of the drainage hole 32 of the lower blade 3 is coaxially aligned with the second annular magnet 75 of the guide member 7, completing the quick connection between the connecting hose 76 and the flow guide structure.
[0046] It is worth noting that Figure 4 As shown, the arc length of the guide member 7 of this embodiment is greater than the arc length of the lower blade 3, so that when the guide member 7 is in contact with the lower blade, the extensions at both ends can also constrain and position the side support blades 4 on both sides, thereby preventing the four blades of the expansion mechanism from being misaligned due to skin compression when inserted into the vagina, affecting the insertion effect.
[0047] The above is only an embodiment of the present invention, and the common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. A multi-directional vaginal dilator, characterized by: The invention comprises an expansion mechanism, an adjustment component and a mounting bracket (1), the adjustment component comprises a transmission mechanism (5) and a trigger mechanism (6), the expansion mechanism and the mounting bracket (1) are movably connected via the transmission mechanism (5), the trigger mechanism (6) drives the transmission mechanism (5) to move, the expansion portion comprises a first expansion portion for longitudinal adjustment and a second expansion portion for lateral adjustment, and the transmission mechanism (5) comprises a first transmission component and a second transmission component; The mounting bracket (1) is an annular structure, the first expansion portion is provided at both longitudinal ends of the mounting bracket (1), the second expansion portion is provided at both transverse ends of the mounting bracket (1), and the transmission mechanism (5) is used to realize the opening and closing of the first expansion portion and the second expansion portion along the mounting bracket (1); The first expansion portion comprises an upper blade (2) and a lower blade (3), the upper blade (2) and the lower blade (3) being movably connected via a first transmission assembly; the second expansion portion comprises two side support blades (4), the side support blades (4) being mounted on both sides of the first expansion portion, the side support blades (4) being movably connected via a second transmission assembly; The first expansion portion and the second expansion portion form a columnar cylindrical structure in a closed state.
2. The multi-directional vaginal dilator according to claim 1, characterized in that: The expansion mechanism further comprises a transition portion, which is arranged on a side of the expansion mechanism away from the mounting bracket (1), and comprises an upper transition plate (21) and two side transition plates (41), wherein the upper transition plate (21) is connected to the upper blade (2), and the side transition plates (41) are respectively connected to the side support blades (4).
3. The multi-directional vaginal dilator according to claim 1, characterized in that: The lower blade (3) is provided with a flow guide structure, which includes a flow guide groove (31), and the flow guide groove (31) extends along the lower blade (3).
4. The multi-directional vaginal dilator according to claim 3, characterized in that: The output end of the guide structure is connected to a hose (76); a drainage hole (32) is provided at the bottom of the lower blade (3); an annular countersunk hole is provided on the outer wall of the drainage hole (32); a first annular magnet (33) is provided in the countersunk hole; a second annular magnet (75) is provided at one end of the connecting hose (76); and the connecting hose (76) and the drainage hole (32) are connected magnetically.
5. The multi-directional vaginal dilator according to claim 1, characterized in that: The lower end of the mounting bracket (1) is provided with a handheld portion, the handheld portion is provided with a control module and a trigger module, the control module is electrically connected to the first transmission assembly and the second transmission assembly; the trigger module is used to start the control module.
6. The multi-directional vaginal dilator according to claim 5, characterized in that: The outer wall of the mounting bracket (1) is provided with a guide hole (11), and the transmission mechanism (5) comprises a telescopic member (51) and a telescopic cylinder (52). The telescopic cylinder (52) is mounted on the outer wall of the mounting bracket (1), one side of the telescopic member (51) is mounted on the telescopic cylinder (52), and the other end of the telescopic member (51) passes through the guide hole (11) and is connected to the expansion mechanism.
7. The multi-directional vaginal dilator according to claim 1, characterized in that: The invention also includes a guide member (7), which is a semicircular structure, and the inner diameter of the guide member (7) matches the outer diameter of the lower blade (3) of the expansion portion; the guide member (7) includes an insertion end (71) and a limiting end (72), the insertion end (71) is provided with an inward chamfered transition, the limiting end (72) is provided with a baffle, and an outward chamfered transition is provided between the limiting end (72) and the baffle.
8. The multi-directional vaginal dilator according to claim 7, characterized in that: The bottom of the guide member (7) is provided with a positioning groove (73) along the axial direction, the guide structure of the lower blade (3) protrudes toward the outer wall, and the positioning groove (73) accommodates the protrusion of the outer wall of the guide structure; the bottom of the limiting end (72) of the guide member (7) is provided with a guide hole (74), and the guide hole (74) is installed with a second annular magnet (75).
Citation Information
Patent Citations
Comfortable vaginal dilator for gynecological outpatient service
CN118948199A
Vaginal dilator
CN203303490U
Vaginal dilator for cervical surgery
CN209107303U
Multi-blade vaginal dilator capable of being adjusted in rotating mode
CN209220238U
Vaginal dilator capable of conveniently adjusting distance between openings
CN219782506U