CN113456008B - Dilation structure and four-wing vaginal dilator - Google Patents
Dilation structure and four-wing vaginal dilator Download PDFInfo
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- CN113456008B CN113456008B CN202110914360.2A CN202110914360A CN113456008B CN 113456008 B CN113456008 B CN 113456008B CN 202110914360 A CN202110914360 A CN 202110914360A CN 113456008 B CN113456008 B CN 113456008B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/32—Devices for opening or enlarging the visual field, e.g. of a tube of the body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
- A61B1/303—Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor for the vagina, i.e. vaginoscopes
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Abstract
本发明揭示了一种扩张结构，其包括上扩件、下扩件、限位件及两个侧扩件，上扩件与下扩件相连且可相对转动，限位件设于上扩件或下扩件，两个侧扩件分别转动连接于下扩件相对的两侧，上扩件与下扩件相对张开过程中，两个侧扩件其中一端分别沿着限位件相向滑动，两个侧扩件另一端相对张开，当处于张开状态，上扩件、下扩件及两个侧扩件之间形成检查通道，上扩件与下扩件相对闭合过程中，两个侧扩件其中一端分别沿着限位件相背滑动，两个侧扩件另一端相对闭合；本发明还揭示了一种四翼阴道扩张器。本申请在上扩件与下扩件相对张开或闭合的过程中，通过限位件与两个侧扩件的滑动配合即可带动两个侧扩件同步张开或闭合，整体扩张结构简单，成本低。
The present invention discloses an expansion structure, which includes an upper expansion piece, a lower expansion piece, a stopper and two side expansion pieces. The upper expansion piece is connected to the lower expansion piece and can rotate relatively. The stopper is arranged on the upper expansion piece or the lower expansion piece. The two side expansion pieces are respectively rotatably connected to the opposite sides of the lower expansion piece. During the relative opening of the upper expansion piece and the lower expansion piece, one end of the two side expansion pieces slides toward each other along the stopper, and the other ends of the two side expansion pieces are relatively opened. When in the opened state, an inspection channel is formed between the upper expansion piece, the lower expansion piece and the two side expansion pieces. During the relative closing of the upper expansion piece and the lower expansion piece, one end of the two side expansion pieces slides back to back along the stopper, and the other ends of the two side expansion pieces are relatively closed. The present invention also discloses a four-wing vaginal dilator. In the process of relative opening or closing of the upper expansion piece and the lower expansion piece, the sliding cooperation between the stopper and the two side expansion pieces can drive the two side expansion pieces to open or close synchronously. The overall expansion structure is simple and low in cost.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to an expansion structure and a four-wing vaginal dilator.
Background
Vaginal dilators are a common medical device for examining gynecological diseases. The traditional duckbill vaginal dilator is of a two-wing structure, so that the dilating effect of the dilator is improved under the condition that the using habit of doctors is not changed, the dilator with the two-wing structure is improved into a dilator with a four-wing structure in the market at present, however, the dilating structure of the traditional four-wing vaginal dilator is complex, a plurality of linkage structures are required to be arranged to realize synchronous dilating of the four wings of the dilator, the operation is difficult, and the production cost is high.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an expansion structure and a four-wing vaginal dilator.
The invention discloses an expanding structure, which comprises:
An expandable structure, comprising:
An upper expanding piece;
The upper expanding piece is connected with the lower expanding piece and can rotate relatively, and the upper expanding piece and the lower expanding piece are switched between an open state and a basic closed state in the relative rotation process;
A limiting piece arranged on the upper or lower expansion piece, and
The two side expansion pieces are respectively connected to two opposite sides of the lower expansion piece in a rotating manner, one ends of the two side expansion pieces respectively slide along the limiting pieces in the opposite opening process of the upper expansion piece and the lower expansion piece, the other ends of the two side expansion pieces are relatively opened, when the two side expansion pieces are in an opened state, an inspection channel is formed among the upper expansion piece, the lower expansion piece and the two side expansion pieces, one ends of the two side expansion pieces respectively slide along the limiting pieces in the opposite closing process of the upper expansion piece and the lower expansion piece, the other ends of the two side expansion pieces are relatively closed, and the two side expansion pieces are folded in an accommodating space formed after the upper expansion piece and the lower expansion piece are closed.
According to one embodiment of the invention, the number of the limiting parts is two, the two limiting parts are oppositely arranged on the upper expanding part or the lower expanding part, and one ends of the two side expanding parts respectively slide opposite to or opposite to the two limiting parts.
According to one embodiment of the invention, the upper expansion member comprises an upper expansion section and a checking section, the checking section is connected with the upper expansion section, the checking section is connected with the lower expansion member and can rotate relatively, and the checking section is provided with a checking opening which faces the checking channel when in an open state.
According to one embodiment of the invention, the upper expanding piece further comprises a pressing part, the pressing part is arranged on the inspection section, a force is applied to the pressing part, the pressing part drives the upper expanding piece and the lower expanding piece to rotate relatively, and the two limiting pieces are arranged on the pressing part relatively.
According to one embodiment of the invention, the stop member is inclined from the outside of the inspection channel towards the inside of the inspection channel.
According to an embodiment of the present invention, there is a clearance between the two limiting members.
According to one embodiment of the invention, the limiting piece is provided with a first surface and a second surface, the first surface is intersected with the second surface, the second surface is provided with a first end and a second end, the second surface is gradually closed towards the first surface when the second surface extends from the first end towards the second end, and the second surface is in sliding connection with one end of the side expanding piece.
According to one embodiment of the invention, the side expanding piece comprises a side expanding section, a rotating part and a sliding part, wherein the side expanding section is connected with the sliding part, the sliding part is in sliding connection with the limiting piece, one end of the rotating part is connected to the connecting part of the side expanding section and the sliding part, the other end of the rotating part is in rotating connection with the lower expanding piece, in the process that the upper expanding piece and the lower expanding piece are opened relatively, the two sliding parts slide relatively along the limiting piece, the two side expanding sections are opened relatively, an inspection channel is formed between the upper expanding piece, the lower expanding piece and the two side expanding sections, in the process that the upper expanding piece and the lower expanding piece are closed relatively, the two sliding parts slide relatively along the limiting piece, the two side expanding sections are closed relatively, and the two side expanding sections are folded in a containing space formed after the upper expanding piece and the lower expanding piece are closed.
According to one embodiment of the invention, the sliding part is provided with a limiting arc end, and the limiting arc end is in sliding connection with the limiting piece.
A four-winged vaginal dilator comprising the above dilating structure.
The application has the advantages that in the process of relatively opening or closing the upper expanding piece and the lower expanding piece, the two side expanding pieces can be driven to synchronously open or close by the sliding fit of the limiting piece and the two side expanding pieces, the integral expanding structure is simple, the operation is convenient, and the production cost is low.
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 specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic illustration of an expanded configuration in an exemplary embodiment;
FIG. 2 is a schematic view of an embodiment in which the expanded configuration is closed;
FIG. 3 is a schematic structural view of an upper expansion member and a limiting member in the embodiment;
FIG. 4 is a schematic view of the structure of the lower diffuser in the embodiment;
FIG. 5 is a schematic diagram of a side diffuser and a bottom diffuser according to an embodiment;
Fig. 6 is an enlarged view of a portion a of fig. 3 in the embodiment.
Detailed Description
Various embodiments of the invention 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 invention. That is, in some embodiments of the invention, these practical details are unnecessary. Moreover, for the purpose of simplifying the drawings, some conventional structures and components are shown in the drawings in a simplified schematic manner.
It is to be noted that, all directional indicators in the embodiments of the present invention such as up, down, left, right, front the following..once. Is used only to explain the relative positional relationship between the components, the movement conditions and the like in a certain specific posture as shown in the drawings, if the particular gesture changes, the directional indication changes accordingly.
In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the invention solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. 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 invention.
As used herein, the term "substantially closed" and grammatically related terms refer to a relative structural arrangement of two objects in which one object is perfectly positioned to close with the other object or in which one object is positioned in a manner that, despite not being perfectly closed with the other object, is immediately identifiable as being closed with the other object. A relative structural arrangement between two objects that is not perfectly closed due to acceptable tolerances suitable for manufacturing devices of the type described herein, but that can be immediately identified as closed, is considered to be positioned substantially closed.
As used herein, the term "substantially circular" and grammatically related terms refer to a perfectly circular shape or a shape that is immediately identifiable as a circle, although not perfectly circular. The cross-sectional shape that is not perfectly circular but immediately identifiable as circular is considered to be substantially circular due to acceptable tolerances suitable for manufacturing devices of the type described herein.
For a further understanding of the invention, 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 to 3, fig. 1 is a schematic structural view of an expanded structure in an open state in an embodiment, and fig. 2 is a schematic structural view of an expanded structure in a closed state in an embodiment. The expanding structure in this embodiment comprises an upper expanding member 1, a lower expanding member 2, a limiting member 3 and two side expanding members 4. The upper and lower spreaders 1, 2 are connected and rotatable relative to each other, and are switched between open and substantially closed states during relative rotation. The limiting piece 3 is arranged on the upper expanding piece 1 or the lower expanding piece 2. The two side expansion pieces 4 are respectively connected to two opposite sides of the lower expansion piece 2 in a rotating manner, one ends of the two side expansion pieces 4 respectively slide along the limiting piece 3 in the opposite opening process of the upper expansion piece 1 and the lower expansion piece 2, the other ends of the two side expansion pieces 4 are relatively opened, when the two side expansion pieces are in an opened state, an inspection channel is formed among the upper expansion piece 1, the lower expansion piece 2 and the two side expansion pieces 4, in the opposite closing process of the upper expansion piece 1 and the lower expansion piece 2, one ends of the two side expansion pieces 4 respectively slide along the limiting piece 3 in a back-to-back manner, the other ends of the two side expansion pieces 4 are relatively closed, and the two side expansion pieces 4 are folded in a containing space formed after the upper expansion piece 1 and the lower expansion piece 2 are closed.
In the process of relatively opening or closing the upper expansion piece 1 and the lower expansion piece 2, the two side expansion pieces 4 can be driven to synchronously open or close through the sliding fit of the limiting piece 3 and the two side expansion pieces 4, the whole expansion structure is simple, the operation is convenient, and the production cost is low. In this embodiment, the number of the limiting members 3 is two, the two limiting members 3 are oppositely arranged on the upper expansion member 1, and one ends of the two side expansion members 4 slide opposite to or opposite to the two limiting members 3 respectively.
Referring to fig. 3 again, fig. 3 is a schematic structural diagram of the upper expansion member and the limiting member in the embodiment. Further, the upper expansion member 1 includes an upper expansion section 11 and an inspection section 12, the inspection section 12 is connected to the upper expansion section 11, the inspection section 12 is connected to the lower expansion member 2 and is rotatable relatively, the inspection section 12 is formed with an inspection port 121, and when in an open state, the inspection port 121 faces the inspection passage. The arrangement of the examination opening 121 towards the examination channel is convenient for the doctor to perform the examination operation in the examination channel directly or through other instruments through the examination opening 121.
Specifically, the cross section of the upper expansion section 11 is arc-shaped, and one surface of the upper expansion section 11 facing away from the lower expansion member 2 is arc-shaped. Preferably, the arc of the cross section of the upper expansion section 11 is semicircular, and the surface of the upper expansion section 11 facing away from the lower expansion member 2 is a semicircular arc surface. The arc or semicircle shape of the surface of the upper dilating segment 11 can avoid damage to the vagina during dilation. Preferably, the end of the upper expansion section 11 is provided with a first inlet part 111, the first inlet part 111 is of an arc structure, the upper expansion section 11 can conveniently enter the vagina through the arrangement of the first inlet part 111, and damage to the vagina during opening is avoided. The first inlet portion 111 in this embodiment is a quarter oval sphere or sphere-like smooth shell that fits over the upper expansion section 11 and is thus adapted to connect integrally with the upper expansion section 11.
The inspection section 12 is integrally connected with the upper expansion section 11. Specifically, the inspection section 12 includes a transition plate 123 and two side plates 124. One end of the transition plate 123 is integrally connected with the upper expansion section 11, two side plates 124 are respectively connected with the other end of the transition plate 123, and the transition plate 123 and the two side plates 124 are matched to form the inspection opening 121. The cross section of one end of the transition plate 123 connected with the upper expansion section 11 is arc-shaped, so that the transition plate 123 is connected with the upper expansion section 11 in an integrated manner in an adaptive manner to form a smooth transition structure, which is convenient for protecting the vaginal orifice, the cross section of the other end of the transition plate 123 far away from the upper expansion section 11 is U-shaped, and the two side plates 124 are respectively connected with the opening ends of the U-shaped transition plate 123 correspondingly, so that the inspection opening 121 formed by the cooperation of the transition plate 123 and the two side plates 124 is also U-shaped. Preferably, the side of the transition plate 123 facing away from the downward expansion member 2 has an arc bending position 1231, the arc bending position 1231 is located at one end of the transition plate 123 close to the upper expansion section 111, and the arc angle of the arc bending position 1231 is an obtuse angle. The arrangement of the arc bending position 1231 is convenient for the upper expansion section 11 and the lower expansion piece 2 to be folded and form a basic closed state, and when the upper expansion section 11 and the lower expansion piece 2 are opened to form an open state, the arc bending position 1231 can enable the upper expansion section 11 to be opened in place, so that the sufficient expansion space of the inspection channel is ensured to complete the inspection. In addition, when the upper expansion section 11 and the lower expansion member 2 are in a basically closed state and enter the vagina, the transition plate 123 with the curved arc position 1231 can limit the depth of the upper expansion section 11 entering the vagina, so as to avoid the excessive deep entering.
Preferably, the upper expansion piece 1 further comprises a pressing part 13, the pressing part 13 is arranged on the inspection section 12, a force is applied to the pressing part 13, the pressing part 13 drives the upper expansion piece 1 and the lower expansion piece 2 to rotate relatively, and the two limiting pieces 3 are arranged on the pressing part 13 relatively. When the pressing part 13 drives the upper expansion piece 1 and the lower expansion piece 2 to rotate relatively, the two limiting pieces 3 act on the two side expansion pieces 4 synchronously, so that one ends of the two side expansion pieces 4 slide along the two limiting pieces 3 oppositely or reversely. The expansion linkage is realized through the cooperation of the pressing part 13 and the two limiting pieces 3, and the two limiting pieces 3 respectively act on the two side expanding pieces 4, so that the side expanding pieces 4 are opened or closed, the expansion linkage between the upper expanding piece 1 and the side expanding pieces 4 is realized through a simple structure, and the structure is simple and the stability is high. In addition, the pressing part 13 further increases convenience when a doctor controls the upper expansion member 1 and the lower expansion member 2 to rotate relatively, thereby facilitating the formation of an inspection channel and improving the operation convenience of the expander. Specifically, the pressing portion 13 is located between the two side plates 124, one end of the pressing portion 13 is connected to the two side plates 124, and the other end thereof extends in a direction away from the transition plate 123. The pressing portion 13 in this embodiment is plate-shaped, and two opposite side edges thereof are integrally connected to the two side plates 124, respectively, so that the transition plate 123, the two side plates 124, and the pressing portion 13 cooperate to form the inspection opening 121. Preferably, the angle of intersection of the extension line of the pressing portion 13 and the reverse extension line of the upper expansion section 11 is an obtuse angle. Preferably, the pressing portion 13 has anti-slip patterns on the surface of the other end thereof remote from the transition plate 123, increasing friction force when a force is applied to the pressing portion 13, so as to avoid slipping when a doctor applies a force to the pressing portion 13. The two limiting members 3 are oppositely disposed on the surface of the pressing portion 13 facing the side expanding member 4, in this embodiment, the two limiting members 3 are disposed along the edge of the pressing portion 13, where the edge of the pressing portion 13 is the side edge when the pressing portion 13 cooperates with the transition plate 123 and the two side plates 124 to form the inspection opening 121, one end of the two limiting members 3 is close to the opposite inner walls of the two side plates 124, and the other ends of the two limiting members 3 extend in opposite directions. Preferably, one ends of the two limiting members 3 are integrally connected to opposite inner walls of the two side plates 124, respectively, and the other ends of the two limiting members 3 extend opposite to each other and are opposite to each other.
Preferably, the upper expansion section 11 is made of high-permeability plastic, so as to ensure the transparency of the upper expansion section 11 and avoid interference with inspection. Preferably, the upper expansion section 11, the inspection section 12, the pressing portion 13, and the stopper 3 are integrally formed in this embodiment.
Referring to fig. 4 again, fig. 4 is a schematic structural diagram of the lower expansion member in the embodiment. Further, the lower expansion member 2 includes a lower expansion section 21 and a holding portion 22, the holding portion 22 has a connecting end 23, the connecting end 23 of the holding portion 22 is connected to the lower expansion section 21, the inspection section 12 is connected to the connecting end 23 and is rotatable relatively, and when in an open state, an inspection channel is formed between the upper expansion section 11 and the lower expansion section 21. By the arrangement of the holding part 22, the doctor can conveniently hold the expansion module 1. Specifically, the cross section of the lower expansion section 21 is arc-shaped, and the surface of the lower expansion section 21 facing away from the upper expansion section 11 is arc-shaped. Preferably, the cross section of the lower expansion section 21 is semicircular, and the surface of the lower expansion section 21 facing away from the upper expansion section 11 is a semicircular cambered surface. The arcuate or semi-circular shape of the surface of the lower dilating segment 21 prevents damage to the vagina during dilation. Preferably, the end of the lower expansion section 21 is provided with a second inlet part 211, the second inlet part 211 is of an arc structure, the lower expansion section 21 can conveniently enter the vagina through the arrangement of the second inlet part 211, and the damage to the vagina operation during expansion is avoided. The second inlet portion 211 in this embodiment is a quarter oval or spherical shell which is adapted to the lower expansion section 21 and thus integrally connected to the upper expansion section 11. The lower expansion section 21 in this embodiment is adapted to the upper expansion section 11, and is in a substantially closed state after being folded, and an accommodating space is formed between the two in the substantially closed state, and the cross section of the two is substantially circular. The basic circle in this embodiment may be a circle, an ellipse of a basic circle, or other basic circular shapes. The second inlet 211 is synchronously folded with the first inlet 111, and the two parts are matched into a half elliptic sphere or sphere shell. It will be appreciated that the lower and upper expansion sections 21, 11 are in a substantially closed state and can only enter the vagina, and the first entering the vagina is the second and first entering heads 211, 111 in a closed state, and the second entering head 211 and the first entering head 111 are matched to form an oval spherical or spherical shell, so that the lower and upper expansion sections 21, 11 in the substantially closed state can smoothly enter the vagina, thereby avoiding vaginal injury and reducing discomfort of a patient when the patient is examined. The connecting end 23 is integrally connected with the lower expansion section 21. Specifically, the connecting end 23 includes a connecting plate 231 and two mounting plates 232, one end of the connecting plate 231 is integrally connected with the lower expansion section 21, the other end of the connecting plate 231 is integrally connected with the holding portion 22, an arc 2311 is arranged in the middle of the connecting plate 231, and the lower expansion piece 2 and the upper expansion piece 1 are conveniently matched in shape through the arrangement of the arc 2311. The two mounting plates 232 are integrally connected to opposite sides of the connecting plate 231, and the two mounting plates 232 are close to the holding portion 22. The two side plates 124 are respectively located at the outer sides of the two mounting plates 232, and the side plates 124 and the mounting plates 232 are matched through the rotating shafts and the shaft holes to realize a rotating fit relationship, so that the upper expansion piece 1 and the lower expansion piece 2 are connected and can rotate relatively.
Referring to fig. 5 again, fig. 5 is a schematic structural diagram of a side expansion member and a lower expansion member in the embodiment. Further, the side expanding member 4 includes a side expanding section 41, a rotating portion 42 and a sliding portion 43, the side expanding section 41 is connected with the sliding portion 43, the sliding portion 43 is slidingly connected with the limiting member 3, one end of the rotating portion 42 is connected to a connection portion between the side expanding section 41 and the sliding portion 43, the other end of the rotating portion 42 is rotatably connected to the lower expanding member 2, in a process that the upper expanding member 1 and the lower expanding member 2 are opened relatively, the two sliding portions 43 slide relatively along the limiting member 3, the two side expanding sections 41 are opened relatively, an inspection channel is formed between the upper expanding member 1, the lower expanding member 2 and the two side expanding sections 41, in a process that the upper expanding member 1 and the lower expanding member 2 are closed relatively, the two sliding portions 43 slide relatively along the limiting member 3, the two side expanding sections 43 are closed relatively, and the two side expanding sections 41 are gathered in a containing space formed after the upper expanding member 1 and the lower expanding member 2 are closed. In this embodiment, the upper expansion section 11, the lower expansion section 21, and the two side expansion sections 41 cooperate to form an inspection channel. Four-wing expansion is achieved through the upper expansion section 11, the lower expansion section 21 and the two side expansion sections 41, the formed inspection channel is more convenient to inspect, and the side expansion structure formed by the cooperation of the side expansion sections 41, the rotating parts 42 and the sliding parts 43 is simple. Specifically, the sliding portion 43 is integrally formed with the side expansion section 41. The opposite surfaces of the two side expansion sections 41 are smooth cambered surfaces, and the end, far away from the sliding part 43, of the side expansion sections 41 is of a cambered surface structure, so that the damage to the vagina caused by the expansion and matching of the side expansion sections 41 to form an inspection channel can be avoided.
The rotating portion 42 includes a rotating shaft 421 and an elastic clamping plate 422. One end of the rotation shaft 421 is connected to the connection part between the side expansion section 41 and the sliding part 43, the elastic clamping plate 422 is arranged at the other end of the rotation shaft 421, the two mounting plates 232 are respectively provided with a rotation through hole 2321, the two rotation through holes 2321 are oppositely arranged, and the elastic clamping plate 422 penetrates through the rotation through holes 2321, so that the rotation through holes 2321 are sleeved outside the rotation shaft 421 and are rotationally connected with the rotation shaft 421. Specifically, two rotation through holes 2321 are respectively formed in two mounting plates 232, the elastic clamping plate 422 is integrally connected with the rotation shaft 421 along the axis direction of the rotation shaft 421, a barb structure is arranged on the elastic clamping plate 422, during assembly, the rotation shaft 421 integrally connected with the elastic clamping plate 422 directly penetrates through the rotation through holes 2321, the elastic clamping plate 422 penetrates through the rotation through holes 2321, the inner wall of the rotation through holes 2321 acts on the barb structure, the elastic clamping plate 422 deforms towards the axis direction of the rotation shaft 421, after the elastic clamping plate 422 penetrates through the rotation through holes 2321, the elastic clamping plate 422 resets towards the outer side of the rotation shaft 421, at the moment, the barb structure is reversely buckled in the rotation through holes 2321, limiting is formed on the rotation shaft 421, and the rotation shaft 421 is enabled to be rotationally connected in the rotation through holes 2321. The end of the sliding portion 43 remote from the side expansion section 41 extends toward the inspection opening 121 and is in sliding contact with the stopper 3 provided at the pressing portion 13.
Preferably, the sliding portion 43 has a limiting arc end 431, and the limiting arc end 431 is slidably connected with the limiting member 3. The limiting arc end 431 is an end part of the sliding part 43 with an arc structure, and the sliding part 43 is more adaptive to form a sliding fit relation with the limiting part 3 through the arrangement of the limiting arc end 431, so that the smooth sliding fit is ensured. In a specific application, the limiting arc end 431 is formed by arc bending and extending the end of the sliding part 43 towards the inspection opening 121, and is in sliding connection with the limiting piece 3 in a terminal fit mode.
The limiting arc ends 431 of the two sliding parts 43 are respectively in sliding connection with the two limiting pieces 3. When a force is applied to the pressing portion 13, in the process of driving the upper expansion section 11 and the lower expansion section 21 to open relatively, the pressing portion 13 acts on the limiting arc ends 431 of the two sliding portions 43 synchronously through the two limiting members 3, so that the two sliding portions 43 slide on the two limiting members 3 in opposite directions, and the two side expansion sections 41 are driven to open relatively, otherwise, in the process of closing the upper expansion section 11 and the lower expansion section 21 relatively, the limiting arc ends 431 of the two sliding portions 43 slide on the two limiting members 3 in opposite directions, the two side expansion sections 131 are closed relatively, and the two side expansion sections 131 are closed relatively, so that after the basic closed state is formed, the closing action is completed after the upper expansion section 11 and the lower expansion section 21, and the basic closed state is formed, so that the two side expansion sections 131 can be folded in the accommodating space formed after the upper expansion section 11 and the lower expansion section 21 are closed. The limiting member 3 in this embodiment may be a slider.
Preferably, the side spreader 4 further comprises a reinforcement portion provided at the side spreading section 41 or/and the sliding portion 43. By the arrangement of the reinforcing part, the strength of the side expansion section 41 and the sliding part 43 is reinforced to ensure the strength when the side expansion section 41 performs the expansion action and the sliding part 43 performs the sliding action, and also ensure the strength of the side expansion section 131 and the sliding part 43 after forming the inspection channel, thereby improving the stability of the inspection channel. In specific applications, the reinforcing part may be a reinforcing rib or a reinforcing block, for example, an i-shaped reinforcing block, and when the reinforcing part is arranged, the reinforcing part may be separately arranged on the side expansion section 41 or the sliding part 43, or may be separately arranged on the side expansion section 41 and the sliding part 43. The reinforcing portion in the present embodiment is a reinforcing rib provided along the longitudinal direction of the sliding portion 43 and the side expansion section 41, and is preferably integrally formed with the sliding portion 43 and the side expansion section 41.
Referring again to fig. 6, fig. 6 is an enlarged view of a portion a of fig. 3 in the embodiment, and further, the stopper 3 is inclined from the outside of the inspection channel toward the inside of the inspection channel. In this embodiment, the stopper 3 is inclined from the outside of the inspection opening 121 toward the inside of the inspection opening 121. In this way, through the inclined arrangement of the limiting pieces 3 from outside to inside, when the pressing portion 13 applies force, the upper expansion section 11 and the lower expansion section 21 are driven to open relatively, so that the two limiting pieces 3 synchronously act on the limiting arc ends 431 of the two sliding portions 43 to perform sliding movement more smoothly. In specific application, the inclination angle of the specific limiting piece 3 can be set according to practical situations, and the inclination angle of the limiting piece 3 from the outer side of the inspection opening 121 to the inner side of the inspection opening 121 is within 5 degrees.
Preferably, the limiting member 3 has a first surface 31 and a second surface 32, the first surface 31 intersects the second surface 32, the second surface 32 has a first end 321 and a second end 322, and the second surface 32 gradually approaches the first surface 31 when the second surface 32 extends from the first end 321 to the second end 322, and the second surface 32 slides on one end of the side expanding member 4. The first surface 31 in this embodiment is a surface of the stopper 3 intersecting with a surface side of the pressing portion 13, wherein the surface of the pressing portion 13 is a surface of the pressing portion 13 facing away from the downward expansion member 2, and the second surface 32 is a surface of the stopper 3 intersecting with the first surface 31, and the second surface 32 extends approximately along a length direction of the stopper 3. The second surface 32 is slidably connected to the limiting arc end 431 of the sliding part 43. The first end 321 in this embodiment is an end portion of the second surface 32 near the integral connection between the limiting member 3 and the side plate 124, and the second end 322 is another end portion of the second surface 32 far from the integral connection between the limiting member 3 and the side plate 124. It will be appreciated that, when a force is applied to the pressing portion 13, during the opposite opening of the upper expansion section 11 and the lower expansion section 21, the second face 32 of the stopper 3 slides against the limiting arc end 431 of the sliding portion 43, and the second face 32 continuously acts on the limiting arc end 431 of the sliding portion 43, so that the two side expansion sections 131 are opened relatively to form an inspection channel, while during the formation of the inspection channel, the vagina is involuntarily contracted, and acts on the upper expansion section 11, the lower expansion section 21 and the two side expansion sections 131 in opposite directions, which causes the side expansion sections 131 to act on the two limiting arc ends 431 in opposite directions, so that the two limiting arc ends 431 have opposite sliding tendencies, which in practice are counteracted by applying a force to the pressing portion 13 against the hands of a doctor, in the process of limiting the second surface 32 to extend from the first end 321 to the second end 322, after the second surface 32 gradually approaches the first surface 31, the action degree of the second surface 32 on the limiting arc end 431 is gradually increased, so that the reverse sliding trend of the limiting arc end 431 is limited, and the limiting angle of the limiting arc end 431 is gradually increased along with the gradual approach of the second surface 32 to the first surface 31, so that the limit on the reverse sliding trend of the limiting arc end 431 is gradually increased, the opening process of the two side expansion sections 131 is smooth, the limiting degree of the limiting piece 3 on the limiting arc end 431 is gradually increased to resist the reverse action of vaginal contraction, the reverse sliding of the limiting arc end 431 is avoided, the opening process of the upper expansion section 11, the lower expansion section 21 and the two side expansion sections 131 is smooth, can smoothly open to form an inspection channel.
Preferably, there is a clearance gap 33 between the two stop members 3. The grip 22 in this embodiment further includes a carrying platform 221. The carrying platform 221 is located between the two mounting plates 232 and integrally connected to the end of the grip portion 22. In a specific examination, a doctor may use other medical instruments to pass through the examination opening 121 and then extend into the examination channel for examination, and the carrying table 221 may facilitate carrying of the other medical instruments. The avoidance of the bearing table 221 can be achieved by the avoidance of the avoidance bit 33, and the whole expansion structure can be more compact. When other medical instruments are arranged on the bearing table 221, the medical instruments are positioned above the limiting piece 3, so that interference between the other medical instruments and the limiting piece 3 at the cultivated land position is avoided. The avoidance bit 33 in this embodiment is specifically a space between the two stoppers 3.
The embodiment also discloses a four-wing vaginal dilator which comprises the dilating structure.
In summary, the expansion structure of the invention realizes the linkage fit of the upper expansion section, the lower expansion section and the two side expansion sections through the simple sliding fit between the pressing part and the limiting part, realizes the four-wing expansion, has simple integral structure, can reduce the cost of the four-wing vaginal dilator used as consumable, and has good market prospect.
The above are merely embodiments of the present invention, and are not intended to limit the present invention. Various modifications and variations of the present invention 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 invention, should be included in the scope of the claims of the present invention.
Claims (6)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110914360.2A CN113456008B (en) | 2021-08-10 | 2021-08-10 | Dilation structure and four-wing vaginal dilator |
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| CN202110914360.2A CN113456008B (en) | 2021-08-10 | 2021-08-10 | Dilation structure and four-wing vaginal dilator |
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| CN113456008A CN113456008A (en) | 2021-10-01 |
| CN113456008B true CN113456008B (en) | 2025-02-18 |
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| CN114145704B (en) * | 2021-12-06 | 2025-05-06 | 苏州桑田医疗科技有限公司 | A side expansion structure for expander |
| CN114145701A (en) * | 2021-12-06 | 2022-03-08 | 杭州微新医疗科技有限公司 | Side expanding mechanism and four-wing expander |
| CN117426737A (en) * | 2022-07-15 | 2024-01-23 | 重庆融海超声医学工程研究中心有限公司 | Vaginal dilator |
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| CN113456007A (en) * | 2021-08-10 | 2021-10-01 | 杭州微新医疗科技有限公司 | Vaginal dilator |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6379299B1 (en) * | 2000-05-04 | 2002-04-30 | German Borodulin | Vaginal speculum with adjustable blades |
| EP2586486B1 (en) * | 2010-07-14 | 2016-04-06 | Shanghai Linjing Medical Equipment Co. Ltd. | Vaginal dilator having two side blades and upper and lower blades |
| MX2016002536A (en) * | 2013-08-28 | 2016-06-17 | Alfred E Mann Inst Biomed Eng | Minimally obstructive retractor for vaginal repairs. |
| CA3209391A1 (en) * | 2015-12-29 | 2017-07-06 | Ceek Women's Health, Inc. | Speculum with secondary bills |
| CN110236477A (en) * | 2019-07-10 | 2019-09-17 | 武汉秋雨医疗器械有限公司 | LED wireless lighting source type disposable sterile vaginal dilator |
| CN212755603U (en) * | 2020-09-25 | 2021-03-23 | 江苏奥博金医药科技有限公司 | Instant-destroying four-wing speculum |
| CN113100701B (en) * | 2021-05-24 | 2022-08-09 | 苏州桑田医疗科技有限公司 | Visual expansion checker |
| CN113100688B (en) * | 2021-05-24 | 2022-05-27 | 苏州桑田医疗科技有限公司 | Vagina examination device |
| CN113100700B (en) * | 2021-05-24 | 2022-10-04 | 苏州桑田医疗科技有限公司 | Locking device for vaginal dilator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113456007A (en) * | 2021-08-10 | 2021-10-01 | 杭州微新医疗科技有限公司 | Vaginal dilator |
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