Multifunctional vagina operation dilator

Abstract

The invention relates to the field of medical instruments, in particular to a multifunctional vagina operation dilator. Comprising an upper opening and closing structure, a lower opening and closing structure, an upper expansion part and a lower expansion part, the lower expansion part is provided with a bearing cavity, and the lower expansion part further comprises a grabbing part; an auxiliary device is arranged in the grabbing part, and the bearing cavity communicates with the auxiliary device through the continuous channel. The dilator is used for solving the problems that a dilator is single in function and cannot be matched with other functions, and an existing dilator is poor in use feeling. The dilator is kept sanitary before entering a vagina operation; cut objects or sampled objects in the operation process are received, and the operation efficiency is improved; the dilator is flexibly adapted to vaginas of different patients, so that the lower dilating part is adjusted as the optimal operation position, and the use feeling of the dilator is improved; by means of the auxiliary device, labor-saving fixing of the grabbing part is achieved, and the dilator can be matched with multiple functions under the condition that the installation space of tools does not need to be additionally increased.

Description

Technical Field

[0001] The present invention relates to the field of medical instruments, and more particularly to a multifunctional vaginal surgical dilator. Background Art

[0002] The vaginal dilator used in clinical obstetrics and gynecology examinations is a common gynecological examination instrument used for tumor removal or correction of vaginal stenosis, muscle relaxation and other problems during vaginal surgery. During the examination, the vagina can be dilated by separating and pushing aside the vaginal wall, providing a more accurate and clear field of view and operating space for the operation. During childbirth, some women may have vaginal tears due to reasons such as the large fetus. The dilator can help doctors straighten the torn vaginal wall during the operation to facilitate repair. The fixed structure of the commonly used metal double-wing vaginal dilator consists of a screw and a nut. When using it, the doctor holds the dilator with one hand and turns the nut with the other hand and makes it turn down in circles to gradually expand. After the examination or operation is completed, the nut is withdrawn along the screw in circles to gradually retract the dilator.

[0003] However, the current expander has a single function and is only used to expand the field of view. It cannot match other functions. At the same time, the user experience of the existing expander is not good. How to expand the function of the existing expander and improve its user experience is a technical problem that needs to be solved at present. Summary of the invention

[0004] The present invention aims to overcome at least one defect (shortcoming) of the above-mentioned prior art and provide a multifunctional vaginal surgical dilator to solve the problem that the dilator has a single function and cannot match other functions, and the existing dilator has a poor user experience.

[0005] The technical solution adopted by the present invention is to provide a multifunctional vaginal surgical dilator, including: an upper opening and closing structure and a lower opening and closing structure that are movably connected, the upper opening and closing structure includes: an upper expansion part, the lower opening and closing structure includes: a lower expansion part, the upper expansion part and the lower expansion part cooperate to form an expansion opening; the upper expansion part and the lower expansion part are combined to form a tubular structure with one end closed; the lower expansion part is provided with a receiving cavity, and the lower expansion part also includes: a grasping part; wherein an auxiliary device is provided in the grasping part, the grasping part is connected to the lower expansion part to form a continuous channel connecting the lower expansion part and the auxiliary device, and the receiving cavity is connected with the auxiliary device through the continuous channel.

[0006] The closed pipeline channel formed by the upper expansion part and the lower expansion part is conducive to keeping the dilator hygienic before entering the vagina for surgery; the receiving cavity provided by the lower expansion part is used to receive the excised or sampled materials during the operation to improve the efficiency of the operation; the grasping part provided by the lower expansion part allows the doctor to directly operate the grasping part to flexibly adapt to the vagina of different patients to adjust the lower expansion part to the best surgical position; the auxiliary device in the grasping part is used to achieve labor-saving fixation of the grasping part, so that the dilator can be equipped with multiple functions without the need for additional installation space for tools, such as sampling and collection of surgical samples, vaginal lighting during surgery, absorption of waste gas and smoke, and spraying of drugs; the continuous channel formed by the connection between the grasping part and the lower expansion part allows the samples during surgery to flow out to a centralized collection point along the continuous channel after being collected by the lower expansion part.

[0007] Furthermore, a plug-in installation cavity is provided in the grasping portion, and the plug-in installation cavity passes through from top to bottom; the plug-in installation cavity includes: a guide bar, and a snap-fit ​​structure for fixing the auxiliary device; the auxiliary device is detachably arranged in the plug-in installation cavity, and the auxiliary device is provided with a positioning groove that cooperates with the guide bar.

[0008] It is beneficial to realize flexible switching of various supporting functions through the installation cavity to improve the use scenarios of the expander; the collection flow direction of the sample is guided by the upper penetration of the installation cavity, and the replacement of supporting functional components is convenient through the lower penetration of the installation cavity; the guide bar is used to provide precise positioning for the installation of the auxiliary device, the buckling structure is used to fix the auxiliary device in the installation cavity, and the positioning groove is used to achieve coordination with the guide bar and the force point for loading and unloading.

[0009] Furthermore, the upper opening and closing structure also includes: an upper operating part; the lower opening and closing structure also includes: a lower operating part; the upper operating part and the lower operating part are rotatably connected and cooperate to form an operating cavity; the side of the operating cavity close to the expansion opening is the surgical side, and the surgical side is closed when the expansion opening is closed; an operating opening is provided on the side of the operating cavity away from the surgical side, and the width of the operating opening is greater than the width of the expansion opening; the width of the operating cavity is greater than the widths of the upper expansion part and the lower expansion part; an epitaxial wafer is also provided on the side of the upper operating part away from the upper expansion part; a first avoidance opening for avoiding the operating opening is provided on the epitaxial wafer to maintain the complete exposure of the operating opening on the surgical side; the angle between the epitaxial wafer and the upper expansion part is a first angle, and the first angle is an obtuse angle, and the first angle is used to limit the maximum opening degree of the expansion opening.

[0010] The operation cavity formed by the upper operation part and the lower operation part is conducive to the doctor's preparatory actions before the operation on the closed tubular structure; one side of the operation cavity is the operation side, and the other side is the operation opening, so that the tools used in the operation and the preparation tools before the operation are kept isolated; the width of the operation opening is greater than the width of the expansion opening, so that the tools can pass through the operation opening and complete various coordination with the expander; the maximum opening angle of the expansion part is limited by the engagement between the epitaxial wafer arranged on the upper operation part and the grasping part, thereby improving the operation safety while avoiding excessive opening and causing pain to the patient during use; the operation opening is completely exposed through the first avoidance opening, thereby ensuring that the surgical tools can enter the expander unobstructed; the first angle is used as an obtuse angle, so that the doctor can save effort to support the maximum opening angle of the expander when holding the grasping part.

[0011] Furthermore, the upper operating part is provided with a suction clamp; the suction clamp comprises: a matching channel piece provided with a closed convex edge, a clamping end and a joint end; the suction clamp is fixed to the surface of the upper opening and closing structure through the clamping end; the closed convex edge matches the surface of the upper opening and closing structure and is respectively arranged on both sides of the matching channel piece, so that the suction clamp closes both sides of the matching channel piece to form a smoke guiding channel after cooperating with the upper opening and closing structure; one end of the smoke guiding channel extends to the upper expansion part and forms a smoke inlet, and the other end is connected to the joint end and is connected to an external device through the joint end.

[0012] It is beneficial to form a smoke guide channel closed on four sides by matching the matching channel piece with a closed convex edge with the upper opening and closing structure; the use of connecting materials for the smoke guide channel is reduced through the simple connection structure of the clamping end, and the loading and unloading of the adsorption clip is convenient; the equipment with other functions of the smoke guide channel is connected and matched through the joint end.

[0013] Furthermore, it also includes: an expansion locking component; the lower opening and closing structure also includes: an assembly backplate; the assembly backplate is respectively connected to the grabbing part and the lower operating part, and avoids the operating opening; a rotating shaft is provided on the assembly backplate; the lower operating part is rotatably connected to the upper operating part through the assembly backplate; the expansion locking component is respectively connected to the assembly backplate and the epitaxial wafer.

[0014] It is beneficial to meet the needs of various parts and various material combinations by assembling the back plate; by assembling the rotating shaft on the back plate, the rotation connection between the upper operating part and the lower operating part is realized, which is convenient for adjusting the opening angle; the opening angle is kept fixed by expanding the locking component to avoid angle changes during the operation.

[0015] Furthermore, the auxiliary device includes a sample collection box; a collection port is provided at the top of the sample collection box; the lower expansion portion includes: a receiving surface, the receiving surface is an arc surface and gradually concave from both sides to the middle; the lower opening and closing structure includes: a guiding curved surface, the width of the guiding curved surface is greater than the receiving surface, one end of the guiding curved surface is connected to the receiving surface, and the other end extends toward the auxiliary device to form a continuous channel and matches the collection port.

[0016] It is beneficial to realize sampling during surgery through the sample collection box. At the same time, the sample collection box can be replaced at any time to facilitate continuous multiple sampling without occupying the operating space; the sample is converged by the receiving surface to reduce the viscosity of the sample during the convergence flow process; the sample is quickly transferred by the guiding curved surface to form a channel for transmission to the collection port; the width of the guiding curved surface is greater than the receiving surface, so that the samples that are not converged on the receiving surface are also guided to flow out in a concentrated manner.

[0017] Furthermore, the sample collection box includes: a front shell and a rear shell, the front shell and the rear shell cooperate to form a hollow sample cavity and form a sample collection port connected to the sample cavity at the top; a front end arc surface is provided on the side of the front shell close to the lower expansion portion, and the vertical cross-section of the front end arc surface gradually increases from the side close to the lower expansion portion to the side away from the lower expansion portion; the gripping portion is provided with a removal port, the removal port is provided below the gripping portion and the front end arc surface is exposed; a partition is provided in the sample cavity, and the partition divides the sample cavity into a connected upper solid sample chamber and a lower liquid sample chamber.

[0018] It is beneficial to strengthen the stability of the connection structure between the lower expansion part and the grasping part through the front end arc surface; the deformation of the grasping part during force generation is avoided by gradually increasing the vertical cross-section; the removal port provided in the grasping part facilitates the extraction and replacement of the sample collection box; the sample chamber is divided into two areas in the vertical direction by the partition, which is convenient for separating solids and liquids in the sample.

[0019] Furthermore, the auxiliary device includes: a lighting device; the lighting device includes: a light-emitting component arranged at the top and close to the lower expansion portion, and a power supply component and an electronic control circuit arranged in the gripping portion; a light guide bar is provided in the continuous channel; one end of the light guide bar extends to a side of the lower expansion portion close to the gripping portion, and forms a light-emitting surface facing outside the expansion opening; the other end of the light guide bar extends toward the auxiliary device and close to the light-emitting component, and forms an incident surface.

[0020] It is beneficial to realize the lighting supporting function of the expander during surgery through the lighting device in the auxiliary device; by attaching the light guide strip to the inner wall of the lower expansion part, the space for additionally installing the lighting device in the limited expansion opening is reduced; by arranging the power supply component and the electric control circuit in the grasping part, the power supply line loss of the light guide strip is reduced, and at the same time, the expander can be flexibly moved to any position while maintaining sufficient lighting; the expansion opening maintains the lighting of the surgical space in the expansion opening through the light-emitting surface, and no light obstruction is formed; the operating opening is kept illuminated through the incident surface.

[0021] Furthermore, the auxiliary device includes: a sample collection box, a lighting device and an absorption matching device arranged in sequence; a collection port is provided on the top of the sample collection box, and the collection port is connected with the lower expansion part through a continuous channel; a light guide bar is provided in the middle of the continuous channel, one end of the light guide bar is close to the light-emitting end of the lighting device, and the other end extends to one side of the lower expansion part, so that the illumination light can be irradiated outside the expansion opening; the light guide bar divides the continuous channel into a sample channel and an absorption channel; the absorption tube of the absorption matching device extends into the expansion opening through the absorption channel.

[0022] It is beneficial to realize the sampling, lighting and smoking supporting functions during surgery through the sample collection box, lighting device and suction matching device in the auxiliary device; it meets various needs within the limited space of the grasping part; the continuous channel is separated by the light guide strip, so that sampling and smoke suction during surgery do not interfere with each other; the suction matching device is connected to an external negative pressure source, and the interface of the external negative pressure source is located at the bottom of the suction matching device, which can not only filter the smoke but also collect adsorbates in the smoke; the suction tube is extended to the expansion opening so that the smoke generated during the surgery outside the expansion opening can be timely sucked and discharged in a centralized manner, so as to maintain hygiene during the operation.

[0023] Furthermore, a hollow conductive structure is provided on one side of the light guide strip close to the absorption channel; the absorption tube is connected to the conductive structure; one end of the conductive structure extends along the absorption channel to the auxiliary device, and the other end extends toward the lower expansion portion and extends into the lower expansion portion, so that the conductive structure forms the absorption channel away from one end of the gripping portion and closes the absorption port of the conductive structure to the upper part of the lower expansion portion.

[0024] It is beneficial to reduce the length of the suction tube through the conductive structure connected to the suction tube, and at the same time the hollow structure also maintains the suction function; through the extension of the conductive structure in the auxiliary device, the suction channel closed by the outer wall guides the sampled sample to the collection port, avoiding the sample falling into the suction channel and causing sample leakage; through the extension of the conductive structure in the lower expansion part, the smoke generated by the operation at the expansion opening is quickly absorbed, ensuring that multiple functions do not interfere with each other.

[0025] Compared with the prior art, the beneficial effects of the present invention are as follows: the closed pipeline channel allows the dilator to remain hygienic before entering the vagina for surgery; the receiving cavity allows the excision or sampling during the operation to be received to improve the efficiency of the operation; the grabbing part allows the doctor to directly operate the grabbing part to flexibly adapt to the vagina of different patients, so as to adjust the lower expansion part to the best surgical position and improve the use experience of the dilator; the auxiliary device allows the labor-saving fixation of the grabbing part to meet the requirements of the dilator to have multiple functions without the need for additional installation space for tools; the continuous channel allows the samples in the operation to flow out along the continuous channel to a centralized collection point after collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the explosion of the expander of the present invention.

[0027] Figure 2 This is an overall structural diagram of the expander of the present invention.

[0028] Figure 3 It is a side view of the dilator of the present invention.

[0029] Figure 4 It is a schematic diagram of the upper opening and closing structural component of the present invention.

[0030] Figure 5 It is a schematic diagram of the lower opening and closing structural component of the present invention.

[0031] Figure 6 It is a schematic diagram of assembling the back panel components of the present invention.

[0032] Figure 7 It is a schematic diagram of the sample collection box of the present invention.

[0033] Figure 8 FIG. 2 is a schematic diagram of another preferred embodiment of the sample collection box of the present invention.

[0034] Description of the accompanying drawings: upper opening and closing structure 100, upper expansion part 110, upper operating part 120, epitaxial wafer 121, adsorption clamp 122, lower opening and closing structure 200, lower expansion part 210, lower operating part 220, grasping part 230, assembly back plate 240, guide bar 231, auxiliary device 300, sample collection box 310, positioning groove 311, light guide bar 320. DETAILED DESCRIPTION

[0035] The drawings of the present invention are only for illustrative purposes and should not be construed as limiting the present invention. In order to better illustrate the following embodiments, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; it is understandable to those skilled in the art that some well-known structures and their descriptions in the drawings may be omitted. Example

[0036] like Figure 1-8 As shown, the present embodiment provides a multifunctional vaginal surgical dilator, comprising: an upper opening and closing structure 100 and a lower opening and closing structure 200 which are movably connected, the upper opening and closing structure 100 comprising: an upper expansion part 110, the lower opening and closing structure 200 comprising: a lower expansion part 210, the upper expansion part 110 and the lower expansion part 210 cooperate to form an expansion opening; the upper expansion part 110 and the lower expansion part 210 are combined to form a tubular structure with one end closed; the lower expansion part 210 is provided with a receiving cavity, and the lower expansion part 210 further comprises: a grasping part 230; wherein, an auxiliary device 300 is provided in the grasping part 230, the grasping part 230 is connected to the lower expansion part 210, forming a continuous channel connecting the lower expansion part 210 and the auxiliary device 300, and the receiving cavity is connected with the auxiliary device 300 through the continuous channel.

[0037] In this embodiment, the upper opening and closing structure 100 and the lower opening and closing structure 200 are combined to form an angle-adjustable dilator to achieve spatial fixation during vaginal surgery of patients. The front end of the dilator is a long-mouthed closed tubular shape, and the rear end is a vertical plane shape. The upper expansion part 110 is the upper half of the long-mouthed closed tubular shape, and the lower expansion part 210 is the lower half of the long-mouthed closed tubular shape. The expansion opening is located at the front end of the dilator, and the maximum opening angle of the expansion opening is the maximum applicable angle of the dilator. The upper expansion part 110 and the lower expansion part 210 are used to support the opening angle to avoid displacement of the surgical space. The receiving cavity located in the lower expansion part 210 is used to temporarily gather and collect samples or resections produced by the operation. The auxiliary device 300 in the grasping part 230 is used to meet the needs of multiple supporting functions of the dilator. When a lighting device, a smoking device or a sample collection device is connected to the auxiliary device 300, the dilator can achieve switching of multiple functions.

[0038] The grabbing portion 230 is provided with a plug-in installation cavity, which runs through from top to bottom; the plug-in installation cavity includes: a guide bar 231, and a snap-fit ​​structure for fixing the auxiliary device 300; the auxiliary device 300 is detachably arranged in the plug-in installation cavity, and the auxiliary device 300 is provided with a positioning groove 311 that cooperates with the guide bar 231.

[0039] In this embodiment, when different auxiliary devices 300 need to be loaded and unloaded, they can be loaded and unloaded from the top or bottom surface of the plug-in installation cavity, and then the direction of the auxiliary device 300 in the cavity is limited by the guide bar 231, so as to quickly complete the loading and unloading. The side of the plug-in installation cavity remains closed, and the top and bottom surfaces are provided with openings, and the side of the plug-in installation cavity is a semicircular arc surface. The guide bar 231 includes two, and its cross-section is trapezoidal. The trapezoidal hypotenuse of the guide bar 231 contacts the inner wall of the plug-in installation cavity and extends vertically downward along the inner wall of the semicircular arc surface. The positioning groove 311 is provided on the outer side of the auxiliary device 300, so that the auxiliary device 300 maintains contact with the guide bar 231 during the loading and unloading process.

[0040] The upper opening and closing structure 100 also includes: an upper operating part 120; the lower opening and closing structure 200 also includes: a lower operating part 220; the upper operating part 120 and the lower operating part 220 are rotatably connected and cooperate to form an operating cavity; the side of the operating cavity close to the expansion opening is the surgical side, and the surgical side is closed when the expansion opening is closed; an operating opening is provided on the side of the operating cavity away from the surgical side, and the width of the operating opening is greater than the width of the expansion opening; the width of the operating cavity is greater than the widths of the upper expansion part 110 and the lower expansion part 210; an epitaxial wafer 121 is also provided on the side of the upper operating part 120 away from the upper expansion part 110; a first avoidance opening for avoiding the operating opening is provided on the epitaxial wafer 121 to maintain the complete exposure of the operating opening on the surgical side; the angle between the epitaxial wafer 121 and the upper expansion part 110 is a first angle, and the first angle is an obtuse angle, and the first angle is used to limit the maximum opening degree of the expansion opening.

[0041] In this embodiment, the connection between the upper operating part 120 and the lower operating part 220 is a rotating shaft connection, and the grasping part 230, the lower operating part 220 and the lower expansion part 210 are connected as a whole. The operating cavity formed by the upper operating part 120 and the lower operating part 220 is a divided area of ​​the dilator, the side close to the expansion opening is the surgical side, and the side away from the expansion opening is the operating opening. The width of the operating opening is greater than the width of the expansion opening to avoid pulling damage caused by the expansion opening in the vagina. The sample roughly removed or sampled by the doctor at the expansion opening can be moved to the operating opening for fine processing. The front end of the dilator at the expansion opening is in the shape of a long-mouthed closed tube, and the rear end is in the shape of a vertical plane. The upper operating part 120 is the rear half of the vertical plane, and the lower operating part 220 is the front half of the vertical plane. The upper expansion part 110 and the upper operating part 120 are connected as one body, and the upper operating part 120 forms an epitaxial wafer 121 which is vertically downward in a direction away from the upper expansion part 110. A first avoidance opening is provided at the connection between the upper operating part 120 and the epitaxial wafer 121, which is used to avoid the operating opening and make it completely exposed. The first angle between the epitaxial wafer 121 and the upper expansion part 110 is an obtuse angle of 125°. When the epitaxial wafer 121 is pulled outward horizontally, the upper operating part 120 also moves outward, and the upper expansion part 110 moves downward through the rotation connection of the shaft, thereby closing the expansion opening; conversely, when the epitaxial wafer 121 is pushed inward horizontally, the expansion opening opens.

[0042] The upper operating part 120 is provided with a suction clamp 122; the suction clamp 122 includes: a matching channel piece with a closed convex edge, a clamping end and a joint end; the suction clamp 122 is fixed to the surface of the upper opening and closing structure 100 through the clamping end; the closed convex edge matches the surface of the upper opening and closing structure 100 and is respectively arranged on both sides of the matching channel piece, so that the suction clamp 122 closes both sides of the matching channel piece to form a smoke guiding channel after matching with the upper opening and closing structure 100; one end of the smoke guiding channel extends to the upper expansion part 110 and forms a smoke inlet, and the other end is connected to the joint end and is connected to an external device through the joint end.

[0043] In this embodiment, the suction clip 122 of the upper operating part 120 is used to absorb the waste smoke generated by the operation, so that the operation side is kept hygienic. The matching channel sheet extends from the upper operating part 120 along the inner wall of the upper expansion part 110 to the upper side of the operation side to form a smoke inlet; the closed convex edge is arranged on both sides of the matching channel sheet and fits the upper expansion part 110, so that the matching channel sheet is arranged parallel to the lower inner wall of the upper expansion part 110 and forms a smoke guide channel closed on four sides; the clamping end is used to fix the suction clip 122 on the outer surface of the upper operating part 120; the joint end is used to connect the smoke guide channel to a negative pressure source, so that the waste smoke in the operation is discharged in time.

[0044] It also includes: an expansion locking component; the lower opening and closing structure 200 also includes: an assembly backplate 240; the assembly backplate 240 is respectively connected to the grabbing portion 230 and the lower operating portion 220, and avoids the operating opening; a rotating shaft is provided on the assembly backplate 240; the lower operating portion 220 is rotatably connected to the upper operating portion 120 through the assembly backplate 240; the expansion locking component is respectively connected to the assembly backplate 240 and the epitaxial wafer 121.

[0045] In this embodiment, the assembly back plate 240 is connected between the lower operating part 220 and the upper operating part 120. The assembly back plate 240 is U-shaped at the upper end and rectangular plate-shaped at the lower end. The U-shaped part is used to avoid the operating opening, and the rectangular plate-shaped part is used to fix the gripping part 230. The upper operating part 120 is provided with two protrusions at the connection, and the assembly back plate 240 is provided with two rotating shaft plates with holes at the connection, and the protrusions are matched with the holes for rotational connection. The expansion locking assembly is a screw nut assembly, which penetrates between the epitaxial wafer 121 of the upper operating part 120 and the assembly back plate 240. By rotating the nut on the screw, the distance between the upper operating part 120 and the assembly back plate 240 can be adjusted to achieve the fixation of the rotating shaft and prevent the expander from shifting when the expansion opening is opened for surgery.

[0046] The auxiliary device 300 includes a sample collection box 310; a collection port is provided at the top of the sample collection box 310; the lower expansion portion 210 includes: a receiving surface, which is an arc surface and gradually concave from both sides to the middle; the lower opening and closing structure 200 includes: a guiding curved surface, the width of the guiding curved surface is greater than the receiving surface, one end of the guiding curved surface is connected to the receiving surface, and the other end extends toward the auxiliary device 300 to form a continuous channel and match the collection port.

[0047] In this embodiment, the auxiliary device 300 is a sample collection box 310, which is a cavity with a constant cross-sectional area from top to bottom, and the top surface of the sample collection box 310 is a collection port; the lower operating portion 220 forms a smoothly connected guide curve at the connection with the lower expansion portion 210, and the guide curve allows the excised object or sample in the receiving surface to slide down under its own weight and enter the collection port. One side of the guide curve is connected to the lower expansion portion 210, and the other side is connected to the gripping portion 230, so that the guide curve extends on one side of the auxiliary device 300 to form a continuous channel that passes through the operating opening and the gripping portion 230, and the excised object or sample falls into the collection port through the continuous channel. Since the width of the operating opening is greater than the width of the expansion opening, the width of the guide curve is greater than the width of the receiving surface.

[0048] The sample collection box 310 includes: a front shell and a rear shell, the front shell and the rear shell cooperate to form a hollow sample cavity and form a sample collection port connected to the sample cavity at the top; the front shell is provided with a front end arc surface on the side close to the lower expansion part 210, and the vertical cross-section of the front end arc surface gradually increases from the side close to the lower expansion part 210 to the side away from the lower expansion part 210; the grasping part 230 is provided with a removal port, and the removal port is provided below the grasping part 230 and exposes the front end arc surface; a partition is provided in the sample cavity, and the partition divides the sample cavity into an upper solid sample chamber and a lower liquid sample chamber that are connected.

[0049] In this embodiment, the sample collection box 310 is composed of a front shell and a rear shell, and the two form a hollow sample chamber; the two sides of the front shell are provided with vertical downward positioning grooves 311, which are used to match the guide strips 231 in the plug-in installation cavity to achieve the fixation of the sample collection box 310 in the plug-in installation cavity. The vertical cross-section of the front end arc surface of the front shell gradually increases from the side close to the lower expansion part 210 to the side away from the lower expansion part 210, that is, the cross-section of the front shell is semicircular, and the width of its cross-section gradually increases from the expansion part to the operation part. The bottom of the grabbing part 230 is provided with a take-out port, so that the sample collection box 310 can be taken out from the bottom and replaced with a new sample collection box 310 to achieve continuous sampling. The sample chamber is divided into two in the vertical direction by a partition, and the partition is a horizontal plate with holes, which is arranged at the bottom of the solid sample chamber. The cutout or sample falling into the sample collection port is separated into solid and liquid on the partition, and the solid remains in the solid sample chamber, and the liquid flows into the liquid sample chamber through the hole.

[0050] like Figure 8 As shown, the bottom of the sample collection box 310 in this embodiment is provided with a perforation for solid-liquid separation after sample collection, and for removing impurities to ensure that the sample meets the analysis and detection requirements and prevent contamination of the analysis instrument.

[0051] The auxiliary device 300 includes: a lighting device; the lighting device includes: a light-emitting component arranged at the top and close to the lower expansion portion 210, and a power supply component and an electric control circuit arranged in the gripping portion 230; a light guide bar 320 is arranged in the continuous channel; one end of the light guide bar 320 extends to a side of the lower expansion portion 210 close to the gripping portion 230, and forms a light-emitting surface facing the outside of the expansion opening; the other end of the light guide bar 320 extends toward the auxiliary device 300 and close to the light-emitting component, and forms an incident surface.

[0052] In this embodiment, the lighting device is used for lighting during the expansion opening operation. A light guide strip 320 is provided on the guiding curved surface. The light guide strip 320 is a closed curved convex strip with openings on both end faces. The upper end of the closed curved convex strip extends to the tail of the lower expansion portion 210, and the lower end of the closed curved convex strip extends to the upper opening of the plug-in mounting cavity. The light-emitting component and the power cord can pass through the light guide strip 320 and form a light-emitting surface in the direction toward the expansion opening, and form an incident surface in the direction toward the plug-in mounting cavity.

[0053] The auxiliary device 300 includes: a sample collection box 310, a lighting device and an absorption matching device which are arranged in sequence; a collection port is provided on the top of the sample collection box 310, and the collection port is connected with the lower expansion part 210 through a continuous channel; a light guide bar 320 is provided in the middle of the continuous channel, one end of the light guide bar 320 is close to the light-emitting end of the lighting device, and the other end extends to one side of the lower expansion part 210, so that the illumination light can be irradiated outside the expansion opening; the light guide bar 320 divides the continuous channel into a sample channel and an absorption channel; the absorption tube of the absorption matching device extends into the expansion opening through the absorption channel.

[0054] In this embodiment, the auxiliary device 300 includes three devices that can be used simultaneously, which respectively meet the multiple functions of the expander during surgery, such as sampling, lighting, and smoking. The sample collection box 310 is located in the plug-in installation cavity, and the light bar and power cord of the lighting device are also located in the plug-in installation cavity. The suction matching device is placed outside the plug-in installation cavity and is a negative pressure source device. The suction tube is connected to the smoke guide channel so that the waste smoke generated during the operation enters the smoke guide channel from the smoke inlet and is sucked out along the suction tube. The light guide bar 320 is located in the middle of the continuous channel and is used for light guiding and lighting, and divides the plug-in installation cavity into left and right sides from the middle, so that the left side of the plug-in installation cavity is a sample channel for sample collection, and the right side is an suction channel for smoking and exhausting.

[0055] A hollow conductive structure is provided on one side of the light guide strip 320 close to the suction channel; the suction tube is connected to the conductive structure; one end of the conductive structure extends along the suction channel to the auxiliary device 300, and the other end extends toward the lower expansion portion 210 and extends into the lower expansion portion 210, so that the conductive structure forms the suction channel away from one end of the gripping portion 230 and closes the suction port of the conductive structure close to the upper part of the lower expansion portion 210.

[0056] In this embodiment, the conductive structure is a curved panel that is attached to the right side wall of the light guide strip 320 and extends to the inner wall of the lower expansion portion 210. The upper end of the conductive structure is located above the receiving surface, and the lower end is connected to the suction tube, which is used to absorb waste smoke generated during surgery in the lower expansion portion 210 and discharge it outside the expander.

[0057] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the technical solution of the present invention, and are not intended to limit the specific implementation methods of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the claims of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Multifunctional vaginal surgical dilator, including: An upper opening and closing structure and a lower opening and closing structure that are movably connected, the upper opening and closing structure includes: an upper expansion part, the lower opening and closing structure includes: a lower expansion part, the upper expansion part and the lower expansion part cooperate to form an expansion opening; the upper expansion part and the lower expansion part are combined to form a tubular structure with one end closed; the lower expansion part is provided with a receiving cavity, and the lower expansion part also includes: a grasping part; it is characterized in that an auxiliary device is provided in the grasping part, the grasping part is connected to the lower expansion part, forming a continuous channel connecting the lower expansion part and the auxiliary device, and the receiving cavity is connected with the auxiliary device through the continuous channel.

2. The multifunctional vaginal surgical dilator according to claim 1, characterized in that: A plug-in installation cavity is provided in the grasping portion, and the plug-in installation cavity passes through from top to bottom; the plug-in installation cavity includes: a guide bar, and a snap-fit ​​structure for fixing the auxiliary device; the auxiliary device is detachably arranged in the plug-in installation cavity, and a positioning groove cooperating with the guide bar is provided on the auxiliary device.

3. The multifunctional vaginal surgical dilator according to claim 1, characterized in that: The upper opening and closing structure also includes: an upper operating part; the lower opening and closing structure also includes: a lower operating part; the upper operating part and the lower operating part are rotatably connected and cooperate to form an operating cavity; the side of the operating cavity close to the expansion opening is the surgical side, and the surgical side is closed when the expansion opening is closed; an operating opening is provided on the side of the operating cavity away from the surgical side, and the width of the operating opening is greater than the width of the expansion opening; the width of the operating cavity is greater than the widths of the upper expansion part and the lower expansion part; an epitaxial wafer is also provided on the side of the upper operating part away from the upper expansion part; a first avoidance opening for avoiding the operating opening is provided on the epitaxial wafer to maintain the complete exposure of the operating opening on the surgical side; the angle between the epitaxial wafer and the upper expansion part is a first angle, and the first angle is an obtuse angle, and the first angle is used to limit the maximum opening degree of the expansion opening.

4. The multifunctional vaginal surgical dilator according to claim 3, characterized in that: The upper operating part is provided with a suction clamp; the suction clamp includes: a matching channel piece with a closed convex edge, a clamping end and a joint end; the suction clamp is fixed to the surface of the upper opening and closing structure through the clamping end; the closed convex edge matches the surface of the upper opening and closing structure and is respectively arranged on both sides of the matching channel piece, so that the suction clamp closes both sides of the matching channel piece to form a smoke guiding channel after matching with the upper opening and closing structure; one end of the smoke guiding channel extends to the upper expansion part and forms a smoke inlet, and the other end is connected to the joint end and is connected to an external device through the joint end.

5. The multifunctional vaginal surgical dilator according to claim 3, characterized in that: Also includes: expansion locking assembly; The lower opening and closing structure also includes: an assembly backplate; the assembly backplate is respectively connected to the grabbing portion and the lower operating portion, and avoids the operating opening; a rotating shaft is provided on the assembly backplate; the lower operating portion is rotatably connected to the upper operating portion through the assembly backplate; the expansion locking assembly is respectively connected to the assembly backplate and the epitaxial wafer.

6. The multifunctional vaginal surgical dilator according to any one of claims 1 to 5, characterized in that: The auxiliary device includes a sample collection box; a collection port is provided on the top of the sample collection box; the lower expansion portion includes: a receiving surface, which is an arc surface and gradually concave from both sides to the middle; the lower opening and closing structure includes: a guiding curved surface, the width of the guiding curved surface is greater than the receiving surface, one end of the guiding curved surface is connected to the receiving surface, and the other end extends toward the auxiliary device to form a continuous channel and matches the collection port.

7. The multifunctional vaginal surgical dilator according to claim 6, characterized in that: The sample collection box includes: a front shell and a rear shell, the front shell and the rear shell cooperate to form a hollow sample cavity and form a sample collection port connected to the sample cavity at the top; a front end arc surface is provided on the side of the front shell close to the lower expansion portion, and the vertical cross-section of the front end arc surface gradually increases from the side close to the lower expansion portion to the side away from the lower expansion portion; the gripping portion is provided with a removal port, the removal port is provided below the gripping portion and the front end arc surface is exposed; the sample cavity is provided with a partition, and the partition divides the sample cavity into an upper solid sample chamber and a lower liquid sample chamber that are connected.

8. The multifunctional vaginal surgical dilator according to any one of claims 1 to 5, characterized in that: The auxiliary device includes: a lighting device; the lighting device includes: a light-emitting component arranged at the top and close to the lower expansion part, and a power supply component and an electric control circuit arranged in the gripping part; a light guide bar is arranged in the continuous channel; one end of the light guide bar extends to a side of the lower expansion part close to the gripping part, and forms a light-emitting surface facing the outside of the expansion opening; the other end of the light guide bar extends toward the auxiliary device and close to the light-emitting component, and forms an incident surface.

9. The multifunctional vaginal surgical dilator according to any one of claims 1 to 5, characterized in that: The auxiliary device includes: a sample collection box, a lighting device and an absorption matching device which are arranged in sequence; a collection port is provided on the top of the sample collection box, and the collection port is connected with the lower expansion part through a continuous channel; a light guide bar is provided in the middle of the continuous channel, one end of the light guide bar is close to the light-emitting end of the lighting device, and the other end extends to one side of the lower expansion part, so that the illumination light can be irradiated outside the expansion opening; the light guide bar divides the continuous channel into a sample channel and an absorption channel; the absorption tube of the absorption matching device extends into the expansion opening through the absorption channel.

10. The multifunctional vaginal surgical dilator according to claim 9, characterized in that: A hollow conductive structure is provided on one side of the light guide strip close to the suction channel; the suction tube is connected to the conductive structure; one end of the conductive structure extends along the suction channel to the auxiliary device, and the other end extends toward the lower expansion portion and into the lower expansion portion, so that the conductive structure forms the suction channel away from one end of the gripping portion and closes the suction port of the conductive structure to the upper part of the lower expansion portion.

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