Multifunctional vaginal speculum for uterus ovum delivery radiography

Abstract

The invention relates to the technical field of medical instruments, in particular to a multifunctional vaginal speculum for uterus ovum delivery radiography, which comprises a grip, a mounting shell fixedly mounted on one side of the grip, a lower blade mounted at the top end of the grip, and an adjusting mechanism arranged on the mounting shell, the mounting shell is provided with a first upper blade and a second upper blade which are symmetrical through an adjusting mechanism, and the opposite sides of the first upper blade and the second upper blade are attached to each other. When vagina dilation is carried out on a patient suffering from vagina relaxation, the control precision of medical staff on the dilation amplitude can be effectively improved, so that the discomfort of the patient in the dilation process is reduced, and the situation that muscles in the vagina of the patient hinder the insertion operation of the double-lumen tube can be avoided; and meanwhile, the possibility that muscles in the vagina of the patient are injured by clamping can be effectively reduced, so that the accuracy and the efficiency of examination of the patient are guaranteed, and the injury risk and the discomfort of the patient during examination are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, and in particular to a multifunctional vaginal speculum for hysterosalpingography. Background Art

[0002] A speculum is a medical device used for gynecological examinations. It has the important functions of observing the internal conditions of the female reproductive system and assisting in cervical smear examinations, biopsies and other operations. When using it, attention should be paid to disinfection, disposable use, and avoiding use when there is inflammation or damage to the vagina. The speculum is usually made of metal or plastic (such as polyvinyl chloride) and is designed to be expandable so that the doctor can clearly see the vagina and cervix.

[0003] When performing hysterosalpingography on female patients, it is necessary to first perform routine disinfection on the patient's vulva and vagina and lay a perforated towel, then use a speculum to dilate the patient's vagina, then insert a double-lumen tube into the patient's uterine cavity and fix it with an airbag, and finally inject super liquid poppy ethiodized oil into the patient's uterus through the double-lumen tube for subsequent examination steps. The existing speculum usually dilates the patient's vagina by a fixed lower blade and an upward rotating upper blade. However, in actual use, since the vaginal muscles of some patients are relatively loose, the internal vaginal muscles of these patients are prone to bulge toward the gap between the upper and lower blades during expansion. This bulge may not only hinder the doctor from smoothly inserting the contrast tube (double-lumen tube), affecting the accuracy and efficiency of the examination, but also may cause the patient to be pinched when the speculum is closed, which not only increases the risk of injury during the examination, but also reduces the patient's comfort and is not practical. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that when the prior art speculum is used to expand patients with relatively loose vaginal muscles, the patient's internal vaginal muscles are easily protruded between the upper and lower blades during expansion, affecting the accuracy and efficiency of the doctor's examination and easily causing harm to the patient. A multifunctional speculum for hysterosalpingography is proposed to solve the problem that when the prior art speculum is used to expand patients with relatively loose vaginal muscles, the patient's internal vaginal muscles are easily protruded between the upper and lower blades during expansion, affecting the accuracy and efficiency of the doctor's examination and easily causing harm to the patient.

[0005] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: a multifunctional vaginal speculum for hysterosalpingography, comprising a handle, a mounting shell is fixedly mounted on one side of the handle, and a lower blade is mounted on the top of the handle, and further comprising: An adjustment mechanism, the adjustment mechanism is arranged on the mounting shell, and the mounting shell is provided with a mutually symmetrical upper blade 1 and an upper blade 2 through the adjustment mechanism, and the opposite sides of the upper blade and the upper blade are fitted to each other; The shielding mechanism and the closing mechanism, the shielding mechanism is arranged on the upper blade one, the upper blade two and the adjusting mechanism, and is used to shield the fitting part between the upper blade one and the upper blade two, and the closing mechanism is arranged on the lower blade, the upper blade one and the upper blade two, and is used to close the gap between the upper blade one and the side of the upper blade two and the lower blade.

[0006] Preferably, the adjustment mechanism includes an insertion cavity and two movable cavities opened at the top of the mounting shell, the insertion cavity is located between the two movable cavities, and rotating cavities are opened on both side walls of the insertion cavity, the insertion cavity is connected with the interior of the two movable cavities through the two rotating cavities, and lifting components are arranged in the two movable cavities, the lifting components include two connecting rods, the two connecting rods are respectively slidably connected in the two movable cavities, and second racks are installed on opposite sides of the two connecting rods, opening and closing components are arranged on the tops of the two connecting rods, and the two connecting rods are connected to the upper blade one and the upper blade two through the opening and closing components, the opening and closing components are used to expand or close the upper blade one and the upper blade two, and driving components are arranged in the insertion cavity and the two rotating cavities, and the driving components are used to drive the two second racks to move up and down.

[0007] Preferably, the opening and closing assembly includes two limit blocks, which are symmetrically installed on the top of the two connecting rods, and magnetic plates are installed near the edges of the top of the two limit blocks, and the magnetic plates are close to the fitting positions of the upper blade one and the upper blade two. A sliding groove is provided on the top of the limit block, and a ladder-shaped slider is slidably connected in the sliding groove. A sliding block is installed on the top of the ladder-shaped slider, and the two limit blocks are respectively connected to the upper blade one and the upper blade two through the two sliding blocks thereon, and a magnetic block is installed on the side of the sliding block facing the magnetic plate, and the sliding block is magnetically connected to the corresponding magnetic plate through the magnetic block.

[0008] Preferably, the driving assembly includes a first rack and two gears, the first rack is slidably connected in the insertion cavity, a pressure plate is fixedly connected to the top end of the first rack, a T-bar is installed at the bottom end of the pressure plate, the two gears are rotatably connected in the two rotating cavities, and the two gears are respectively meshed with the two second racks, the first rack is meshed with the two gears, and a fixing part is provided on the pressure plate and the mounting shell for fixing the position of the T-bar.

[0009] Preferably, two second side plates are installed on the opposite sides of the two second racks, the tooth blocks on the second rack are located between the two second side plates thereon, two first side plates are installed on both sides of the first rack, and the tooth blocks on both sides of the first rack are respectively located between the two first side plates on both sides thereon, and the first side plates are slidably connected in the insertion cavity.

[0010] Preferably, the fixing part includes a fixing block, which is mounted on the mounting shell, and a slot is provided through the top of the fixing block, the T-bar is slidably connected in the slot, and the top wall of the protrusion on the T-bar contacts the bottom wall of the fixing block, a threaded groove is provided on the side of the fixing block away from the first rack, a fixing bolt is threadedly connected in the threaded groove, and one end of the fixing bolt close to the first rack contacts the side wall of the T-bar, a spring is provided on the outer sleeve of the T-bar, and the top and bottom ends of the spring are fixedly connected to the bottom end of the pressure plate and the top end of the fixing block respectively.

[0011] Preferably, it also includes a guiding component, which includes two guiding grooves and two connecting blocks. The two guiding grooves are respectively opened through one side of the two connecting rods, and the two guide grooves are slidably connected with limit pins. The guide grooves are located above the second rack, and the two connecting blocks are respectively fixedly installed at both ends of the handle, and the ends of the two limit pins away from the first rack are respectively fixedly connected to the two connecting blocks.

[0012] Preferably, the shielding mechanism includes a shielding piece and two through grooves, the two through grooves are symmetrically opened at the top of upper blade one and upper blade two, and the two through grooves are connected to each other. The shielding piece is placed at the fitting position of the top of upper blade one and upper blade two, and the shielding piece passes through the two through grooves at one end of the handle and is fixedly connected to two fixing rods, and the shielding piece is respectively connected to the two connecting rods through the two fixing rods.

[0013] Preferably, the closing mechanism includes two sliding rods and two sliding shells, first slots are provided on both sides of the lower blade, second slots are provided on the downward sides of upper blade one and upper blade two, through openings are provided on the inner walls of the ends of the first slots and the second slots away from the handle, the ends of the lower blade, upper blade one and upper blade two away from the handle are all arranged in an arc shape, blocks and arc plates are installed on the outer walls of the two sliding rods and the two sliding shells, studs are arranged on the arc plates, the two sliding rods are clamped with the second slots through the blocks, and the arc plates on the two sliding rods can be detachably installed on upper blade one and upper blade two respectively through the studs, the two sliding shells are clamped in the two first slots through the blocks, and the arc plates on the two sliding shells can be detachably installed on the lower blade through the studs, and blocking components are provided on the sliding rods and sliding shells on the same side.

[0014] Preferably, the blocking assembly includes a rotating shaft, which is rotatably connected in the sliding shell, and a plurality of coil springs are installed on the rotating shaft, one of which is located close to the end of the rotating shaft away from the handle, and a transparent PU film is arranged between the coil spring and the plurality of coil springs, the rotating shaft is connected to the inner wall of the sliding shell through the coil spring, the transparent PU film is fixedly wrapped around the rotating shaft, and the end of the transparent PU film away from the rotating shaft passes through the inner wall of the sliding shell and is fixedly connected to the outer wall of the corresponding sliding rod.

[0015] Compared with the prior art, the advantages of the present invention are: 1. The present invention can effectively improve the control accuracy of the expansion amplitude of medical staff when performing vaginal expansion for patients with vaginal relaxation through the mutual cooperation of the adjustment mechanism and the closing mechanism, thereby reducing the discomfort of patients during the expansion process. The transparent PU film and the arc-shaped setting of the lower blade, the upper blade 1, and the upper blade 2 can prevent the muscles inside the patient's vagina from hindering the insertion operation of the double-lumen tube, and can effectively reduce the possibility of the muscles in the patient's vagina being pinched, thereby ensuring the accuracy and efficiency of the patient's examination while reducing the risk of injury and discomfort of the patient during the examination.

[0016] 2. Through the arrangement of the opening and closing assembly, the present invention can utilize the horizontal movement of upper blade one and upper blade two to expand the spatial range between upper blade one, upper blade two and lower blade (i.e., perform secondary expansion) when the double-lumen tube is inconvenient to insert due to insufficient space for vaginal expansion, thereby providing a larger operating space for the insertion of the double-lumen tube, thereby being more conducive to the operation of inserting the double-lumen tube into the cervix. Compared with the conventional method of continuing to expand the vertical distance between upper blade one and upper blade two and lower blade, the upper blade one and upper blade two moving to both sides cause less pressure on the patient's vagina, thereby helping to reduce the patient's discomfort or injury risk that may be caused by excessive vertical expansion.

[0017] 3. The present invention, through the setting of the shielding mechanism, can use the shielding sheet to shield the gap between the upper blade one and the upper blade two after the horizontal movement, thereby preventing the patient's vaginal muscles from protruding toward the gap between the upper blade one and the upper blade two, and then can prevent the patient from being pinched by the upper blade one and the upper blade two when the examination is completed and the upper blade one and the upper blade two are restored to a closed state, effectively avoiding the risk of injury and discomfort to the patient's vagina when the speculum is closed after the secondary expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a multifunctional vaginal speculum for hysterosalpingography proposed by the present invention; Figure 2 This is a schematic diagram of a multifunctional vaginal speculum for hysterosalpingography proposed by the present invention after expansion; Figure 3 This is a schematic diagram of the internal structure of the mounting shell of a multifunctional vaginal speculum for hysterosalpingography proposed by the present invention; Figure 4 A cross-sectional view of the mounting shell structure of a multifunctional vaginal speculum for hysterosalpingography proposed by the present invention; Figure 5 for Figure 3 A magnified view of the structure at center; Figure 6A cross-sectional view of a fixing block and fixing bolt structure of a multifunctional vaginal speculum for hysterosalpingography proposed by the present invention; Figure 7 This is a schematic diagram of the unfolded structure of the upper blade 1 and the upper blade 2 of a multifunctional vaginal speculum for hysterosalpingography proposed by the present invention; Figure 8 for Figure 3 A magnified view of the structure at B in the middle; Fig. 9 It is a structural plan view of an upper blade 1, an upper blade 2 and a shielding piece of a multifunctional vaginal speculum for hysterosalpingography proposed by the present invention; Fig.10 for Fig. 9 A magnified view of the structure at C in the middle; Fig.11 This is a schematic diagram of the disassembly of the sliding shell, rotating shaft and transparent PU film structure of a multifunctional vaginal speculum for hysterosalpingography proposed by the present invention.

[0019] In the figure: 1. handle; 2. lower blade; 3. mounting shell; 4. limit pin; 5. lifting assembly; 501. connecting rod; 502. second rack; 503. second side plate; 504. guide groove; 505. limit block; 506. magnetic plate; 507. sliding block; 508. ladder-shaped slider; 509. slide groove; 6. upper blade one; 7. upper blade two; 8. shielding sheet; 9. closing mechanism; 901. sliding rod; 902. sliding shell; 903. transparent PU film; 904. arc plate; 905. rotating shaft; 906. coil spring; 10. fixing block; 11. T-bar; 12. pressure plate; 13. spring; 14. fixing bolt; 15. gear; 16. first rack; 17. first side plate; 18. movable cavity; 19. fixing rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figures 1 to 5A multifunctional vaginal speculum for hysterosalpingography comprises a handle 1, a mounting shell 3 is fixedly mounted on one side of the handle 1, a lower blade 2 is mounted on the top of the handle 1, an adjustment mechanism is arranged on the mounting shell 3, and the mounting shell 3 is mounted with mutually symmetrical upper blades 1 6 and upper blades 2 7 through the adjustment mechanism, and the opposite sides of the two blades fit each other, the adjustment mechanism is used to adjust the distance between the upper blade 1 6 and the upper blade 2 7 and the distance between the upper blade 1 6 and the upper blade 2 7 and the lower blade 2, the adjustment mechanism comprises an insertion cavity and two movable cavities 18 opened at the top of the mounting shell 3, the insertion cavity is located between the two movable cavities 18, and rotating cavities are opened on both side walls of the insertion cavity, the insertion cavity is connected with the inside of the two movable cavities 18 through the two rotating cavities, and the two movable cavities 18 are connected. A lifting assembly 5 is provided in each movable cavity 18, and the lifting assembly 5 includes two connecting rods 501, and the two connecting rods 501 are slidably connected in the two movable cavities 18 respectively, and second racks 502 are installed on opposite sides of the two connecting rods 501, and two second side plates 503 are installed on opposite sides of the two second racks 502, and the tooth blocks on the second racks 502 are located between the two second side plates 503 thereon, and opening and closing assemblies are provided on the top ends of the two connecting rods 501, and the two connecting rods 501 are connected to the upper blade 1 6 and the upper blade 2 7 through the opening and closing assemblies, and the opening and closing assemblies are used to expand or close the upper blade 1 6 and the upper blade 2 7, and driving assemblies are provided in the insertion cavity and the two rotating cavities, and the driving assemblies are used to drive the two second racks 502 to move up and down.

[0022] Reference Figures 1 to 7 The opening and closing component includes two limit blocks 505, which are symmetrically mounted on the top of the two connecting rods 501, and magnetic plates 506 are installed near the edges of the tops of the two limit blocks 505. The magnetic plates 506 are close to the fitting position of the upper blade 1 6 and the upper blade 2 7. A slide groove 509 is opened on the top of the limit block 505, and a ladder-shaped slider 508 is slidably connected in the slide groove 509. A sliding block 507 is installed on the top of the ladder-shaped slider 508. The two limit blocks 505 are respectively connected to the upper blade 1 6 and the upper blade 2 7 through the two sliding blocks 507 thereon, and a magnetic block is installed on the side of the sliding block 507 facing the magnetic plate 506, and the sliding block 507 is magnetically connected to the corresponding magnetic plate 506 through the magnetic block. The two sliding blocks 507 are magnetically connected to the magnetic block through the magnetic plate 506, so that the upper blade 1 6 and the upper blade 2 7 can maintain a state of mutual fitting (that is, maintain a closed state) when there is no external force.

[0023] Reference Figures 1 to 6The driving assembly includes a first rack 16 and two gears 15. Two first side plates 17 are installed on both sides of the first rack 16, and the tooth blocks on both sides of the first rack 16 are respectively located between the two first side plates 17 on both sides thereof. The first rack 16 and the first side plates 17 are both slidably connected in the insertion cavity. A pressure plate 12 is fixedly connected to the top of the first rack 16, and a T-shaped bar 11 is installed at the bottom of the pressure plate 12. The two gears 15 are rotatably connected in the two rotating cavities, and the two gears 15 are respectively meshed with the two second racks 502. The first rack 16 is meshed with the two gears 15. A fixing portion is provided on the pressure plate 12 and the mounting shell 3 for fixing the T-shaped bar 11. The position is fixed, and the fixing part includes a fixing block 10, which is installed on the mounting shell 3, and a slot is penetrated through the top of the fixing block 10, a T-bar 11 is slidably connected in the slot, and the top wall of the protrusion on the T-bar 11 contacts the bottom wall of the fixing block 10, and a threaded groove is provided on the side of the fixing block 10 away from the first rack 16, and a fixing bolt 14 is threadedly connected in the threaded groove, and one end of the fixing bolt 14 close to the first rack 16 contacts the side wall of the T-bar 11, and a spring 13 is provided on the outer sleeve of the T-bar 11, and the top and bottom ends of the spring 13 are respectively fixedly connected to the bottom end of the pressure plate 12 and the top of the fixing block 10, and the spring 13 is used to provide an upward thrust for the pressure plate 12.

[0024] Reference Figures 1 to 7 , guide components are provided on the handle 1 and the two connecting rods 501, which are used to limit and guide the connecting rod 501. The guide components include two guide grooves 504 and two connecting blocks. The two guide grooves 504 are respectively opened on one side of the two connecting rods 501, and the two guide grooves 504 are slidably connected with the limit pins 4. The guide grooves 504 are located above the second rack 502. The two connecting blocks are respectively fixedly installed at both ends of the handle 1. The ends of the two limit pins 4 away from the first rack 16 are respectively fixedly connected to the two connecting blocks. The connecting rod 501 can be limited and guided by the limit pins 4, thereby ensuring that the connecting rod 501 can move up and down smoothly along a straight line, thereby ensuring that the upper blade 1 6 and the upper blade 2 7 can move up and down smoothly.

[0025] Reference Figures 1 to 11, a shielding mechanism is provided on the upper blade 1 6, the upper blade 2 7 and the two connecting rods 501, which is used to shield the joint between the upper blade 1 6 and the upper blade 2 7, the shielding mechanism includes a shielding sheet 8 and two through grooves, the two through grooves are symmetrically opened at the top of the upper blade 1 6 and the upper blade 2 7, and the two through grooves are connected to each other, the shielding sheet 8 is placed at the joint between the top of the upper blade 1 6 and the upper blade 2 7, and the shielding sheet 8 passes through the two through grooves at one end of the handle 1 and is fixedly connected to two fixing rods 19, the shielding sheet 8 is connected to the two connecting rods 501 respectively through the two fixing rods 19, and a closing mechanism 9 is provided on the lower blade 2, the upper blade 1 6 and the upper blade 2 7, which is used to close the gap between the upper blade 1 6 and the upper blade 2 7 and the lower blade 2 side, so as to prevent the patient's vaginal muscles from protruding toward the gap between the upper blade 1 6 and the upper blade 2 7 and the lower blade 2 side when the speculum is expanding. The closing mechanism 9 includes two The sliding rod 901 and the two sliding shells 902, the lower blade 2 is provided with a first card slot on both sides, the upper blade 1 6 and the upper blade 2 7 are provided with a second card slot on the downward side, the first card slot and the second card slot are provided with a through opening on the inner wall of the end away from the handle 1, the lower blade 2, the upper blade 1 6, and the upper blade 2 7 are arranged in an arc shape at the end away from the handle 1, the two sliding rods 901 and the two sliding shells 902 are installed with a card block and an arc plate 904 on the outer wall, and the arc plate 904 is provided with a stud, the two sliding rods 901 are connected to the second card slot through the card block, and the arc plates 904 on the two sliding rods 901 can be detachably installed on the upper blade 1 6 and the upper blade 2 7 through the studs, the two sliding shells 902 are connected to the two first card slots through the card block, and the arc plates 904 on the two sliding shells 902 can be detachably installed on the lower blade 2 through the studs, and the sliding rod 901 and the sliding shell 902 on the same side are provided with a blocking component.

[0026] Reference Figure 3 as well as Figures 8 to 11The blocking component includes a rotating shaft 905, which is rotatably connected in the sliding housing 902, and a plurality of coil springs 906 are installed on the rotating shaft 905, one of which is located close to the end of the rotating shaft 905 away from the handle 1, and a transparent PU film 903 is arranged between the coil spring 906 and the plurality of coil springs 906, the rotating shaft 905 is connected to the inner wall of the sliding housing 902 through the coil spring 906, the transparent PU film 903 is fixedly wound around the rotating shaft 905, and the end of the transparent PU film 903 away from the rotating shaft 905 penetrates the sliding housing 902. The inner wall of the movable shell 902 is fixedly connected with the corresponding outer wall of the sliding rod 901. The setting of the transparent PU film 903 can not only hinder the patient's vaginal muscles, but also facilitate medical staff to observe the internal situation of the patient's vagina, so as to be more conducive to the medical staff's examination of the patient. When the examination of the patient is completed and the closing mechanism 9 needs to be replaced, it is only necessary to remove the arc plate 904 from the lower blade 2, the upper blade 1 6, and the upper blade 2 7, and pull out the sliding rod 901 and the sliding shell 902. The operation is simple and quick, and it is easy to replace.

[0027] When the present invention is used, that is, when the vaginal muscles of patients are relatively relaxed, the lubricant is first applied to the lower blade 2, the upper blade 1 6, the upper blade 2 7, the shielding sheet 8 and the closing mechanism 9. Then the medical staff holds the handle 1 and the mounting shell 3, inserts the upper blade 1 6, the upper blade 2 7 and the lower blade 2 into the patient's vagina at a certain angle, and then manually presses the pressing plate 12 down for a distance. At this time, the spring 13 is in a compressed state. Since the two gears 15 are respectively meshed with the two second racks 502, and the first rack 502 is meshed with the second rack 502, the first rack 502 is meshed with the second rack 502. 16 is meshed with the two gears 15, so when the pressure plate 12 is pressed down and drives the first rack 16 to move downward, the two second racks 502 and the two connecting rods 501 can move upward, so that the upper blade 1 6 and the upper blade 2 7 move upward synchronously. When the upper blade 1 6 and the upper blade 2 7 move up to a suitable height, that is, when the patient's vagina is expanded to a suitable amplitude, the fixing bolt 14 is rotated to squeeze the side of the T-bar 11 until the position of the T-bar 11 is fixed, thereby fixing the expansion amplitude of the patient's vagina and completing the expansion operation.

[0028] Traditional rotational expansion is to rotate the upper blade upward by turning an adjusting component such as a knob. This mechanism has the problem of a small adjustment range but a large expansion range, making it difficult for medical staff to achieve fine control of the expansion range when performing expansion operations. Since upper blade 1 6 and upper blade 2 7 are both expanded by vertical movement, compared with traditional rotational expansion, this expansion method is more conducive to medical staff controlling the expansion range, that is, the distance that the medical staff presses down the pressure plate 12 is completely equal to the distance that upper blade 1 6 and upper blade 2 7 move upward, and there will be no phenomenon that pressing a smaller amplitude causes the upper blade 1 6 and upper blade 2 7 of the speculum to rotate a larger amplitude and cause discomfort to the patient, thereby reducing the discomfort of the patient during vaginal expansion. The second side plate 503 and the first side plate 17 are used to respectively cover the tooth blocks on the second rack 502 and the first rack 16, thereby ensuring that medical staff will not be scratched by accidental contact with these sharp tooth blocks during expansion operations.

[0029] When the upper blade 1 6 and the upper blade 2 7 move away from the lower blade 2, the two sliding rods 901 will be driven to move upward, thereby pulling the transparent PU film 903 and pulling the transparent PU film 903 out from the sliding shell 902. At this time, the rotating shaft 905 rotates with the pulling of the transparent PU film 903, and the rotating shaft 905 can be twisted by the setting of multiple coil springs 906, so that the pulled transparent PU film 903 remains in a taut state, thereby closing the gap between the upper blade 1 6 and the lower blade 2 and the gap between the upper blade 2 7 and the lower blade 2, thereby preventing the patient's vaginal muscles from protruding toward the gap between the upper blade 1 6 and the gap between the upper blade 2 7 and the lower blade 2. The ends of blade 2, upper blade 1 6 and upper blade 2 7 away from the handle 1 are all arranged in an arc shape. When the speculum is inserted into and expands the patient's vagina, the innermost vaginal muscle is not easy to bulge toward the gap between upper blade 1 6 and the end of upper blade 2 7 and lower blade 2, so that the operation of medical staff inserting the double-lumen tube into the patient's uterine cavity is not hindered by the vaginal muscles. At the same time, when the examination is completed and the speculum is closed (at this time, the transparent PU film 903 can be rewound on the rotating shaft 905 under the action of the coil spring 906 as the speculum is closed), the patient is prevented from being pinched by the blades, thereby ensuring the accuracy and efficiency of the patient examination while reducing the risk of injury and discomfort of the patient during the examination.

[0030] If the double-lumen tube is inconvenient to insert due to insufficient space for vaginal expansion, the medical staff can manually push the two sliding blocks 507 outward according to the needs, so that the upper blade 1 6 and the upper blade 2 7 are separated from each other, thereby expanding the space range between the upper blade 1 6, the upper blade 2 7 and the lower blade 2 (i.e., performing secondary expansion), providing a larger operating space for the insertion of the double-lumen tube, and thus being more conducive to the operation of inserting the double-lumen tube into the cervix. Compared with the ordinary method of continuing to expand the vertical distance between the upper blade 1 6 and the upper blade 2 7 and the lower blade 2, the upper blade 1 6 and the upper blade 2 7 can be further expanded. The movement of upper blade 1 6 and upper blade 2 7 to both sides exerts less pressure on the patient's vagina, which helps to reduce the patient's discomfort or injury risk caused by excessive vertical expansion. The slide groove 509 can limit the sliding range of the ladder-shaped slider 508 and the sliding block 507 on the ladder-shaped slider 508, so that when the upper blade 1 6 and the upper blade 2 7 are moved away from each other by toggling the two sliding blocks 507, the upper blade 1 6 and the upper blade 2 7 can be prevented from separating from the shielding sheet 8, so that the shielding sheet 8 can shield the gap between the unfolded upper blade 1 6 and the upper blade 2 7 (such as Figure 7 ), such shielding can prevent the patient's vaginal muscles from protruding toward the gap between upper blade 1 6 and upper blade 2 7, thereby preventing the patient from being pinched by upper blade 1 6 and upper blade 2 7 when the examination is completed and upper blade 1 6 and upper blade 2 7 are restored to a closed state.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional vaginal speculum for hysterosalpingography, comprising a handle (1), a mounting housing (3) fixedly mounted on one side of the handle (1), and a lower blade (2) mounted on the top of the handle (1), characterized in that include: An adjustment mechanism, the adjustment mechanism being arranged on the mounting shell (3), the mounting shell (3) being provided with a mutually symmetrical upper blade 1 (6) and an upper blade 2 (7) through the adjustment mechanism, the opposite sides of the upper blade 1 and the upper blade 2 being fitted to each other; A shielding mechanism and a closing mechanism (9), wherein the shielding mechanism is arranged on the upper blade 1 (6), the upper blade 2 (7) and the adjusting mechanism, and is used to shield the joint between the upper blade 1 (6) and the upper blade 2 (7); and the closing mechanism (9) is arranged on the lower blade (2), the upper blade 1 (6) and the upper blade 2 (7), and is used to close the gap between the upper blade 1 (6) and the upper blade 2 (7) and the side of the lower blade (2).

2. The multifunctional vaginal speculum for hysterosalpingography according to claim 1, characterized in that: The adjustment mechanism comprises an insertion cavity and two movable cavities (18) provided at the top of the mounting housing (3); the insertion cavity is located between the two movable cavities (18); and rotating cavities are provided on both side walls of the insertion cavity; the insertion cavity is connected to the inside of the two movable cavities (18) through the two rotating cavities; a lifting assembly (5) is provided in the two movable cavities (18); the lifting assembly (5) comprises two connecting rods (501); the two connecting rods (501) are respectively slidably connected in the two movable cavities (18); and second racks (502) are provided on opposite sides of the two connecting rods (501); an opening and closing assembly is provided at the top of the two connecting rods (501); and the two connecting rods (501) are connected to the upper blade 1 (6) and the upper blade 2 (7) through the opening and closing assembly; the opening and closing assembly is used to expand or close the upper blade 1 (6) and the upper blade 2 (7); and a driving assembly is provided in the insertion cavity and the two rotating cavities; the driving assembly is used to drive the two second racks (502) to move up and down.

3. The multifunctional vaginal speculum for hysterosalpingography according to claim 2, characterized in that: The opening and closing assembly comprises two limit blocks (505), the two limit blocks (505) are symmetrically mounted on the top ends of the two connecting rods (501), and magnetic plates (506) are mounted on the top ends of the two limit blocks (505) near the edges, the magnetic plates (506) are close to the positions where the upper blade 1 (6) and the upper blade 2 (7) are fitted, a slide groove (509) is opened on the top ends of the limit blocks (505), a ladder-shaped slider (508) is slidably connected in the slide groove (509), a sliding block (507) is mounted on the top ends of the ladder-shaped slider (508), the two limit blocks (505) are respectively connected to the upper blade 1 (6) and the upper blade 2 (7) through the two sliding blocks (507) thereon, a magnetic block is mounted on the side of the sliding block (507) facing the magnetic plate (506), and the sliding block (507) is magnetically connected to the corresponding magnetic plate (506) through the magnetic block.

4. The multifunctional vaginal speculum for hysterosalpingography according to claim 2, characterized in that: The driving assembly comprises a first rack (16) and two gears (15), wherein the first rack (16) is slidably connected in the insertion cavity, a pressure plate (12) is fixedly connected to the top end of the first rack (16), a T-shaped bar (11) is installed at the bottom end of the pressure plate (12), the two gears (15) are rotatably connected in the two rotating cavities respectively, and the two gears (15) are respectively meshed with the two second racks (502), the first rack (16) is meshed with the two gears (15), and a fixing portion is provided on the pressure plate (12) and the mounting housing (3) for fixing the position of the T-shaped bar (11).

5. The multifunctional vaginal speculum for hysterosalpingography according to claim 4, characterized in that: Two second side plates (503) are installed on opposite sides of the two second racks (502), and the tooth blocks on the second racks (502) are located between the two second side plates (503) thereon. Two first side plates (17) are installed on both sides of the first rack (16), and the tooth blocks on both sides of the first rack (16) are respectively located between the two first side plates (17) on both sides thereof, and the first side plates (17) are slidably connected in the insertion cavity.

6. The multifunctional vaginal speculum for hysterosalpingography according to claim 4, characterized in that: The fixing portion comprises a fixing block (10), the fixing block (10) being mounted on the mounting housing (3), and a slot being provided through the top of the fixing block (10), the T-shaped bar (11) being slidably connected in the slot, and the top wall of the protrusion on the T-shaped bar (11) being in contact with the bottom wall of the fixing block (10), a thread groove being provided on the side of the fixing block (10) away from the first rack (16), a fixing bolt (14) being threadedly connected in the thread groove, and one end of the fixing bolt (14) close to the first rack (16) being in contact with the side wall of the T-shaped bar (11), and a spring (13) being provided on the outer sleeve of the T-shaped bar (11), and the top and bottom ends of the spring (13) being fixedly connected to the bottom end of the pressure plate (12) and the top end of the fixing block (10) respectively.

7. The multifunctional vaginal speculum for hysterosalpingography according to claim 4, characterized in that: The guide component also includes two guide grooves (504) and two connecting blocks. The two guide grooves (504) are respectively opened through one side of the two connecting rods (501), and the two guide grooves (504) are slidably connected with limit pins (4). The guide grooves (504) are located above the second rack (502). The two connecting blocks are respectively fixedly mounted at both ends of the handle (1), and the ends of the two limit pins (4) away from the first rack (16) are respectively fixedly connected to the two connecting blocks.

8. The multifunctional vaginal speculum for hysterosalpingography according to claim 2, characterized in that: The shielding mechanism comprises a shielding sheet (8) and two through-grooves, wherein the two through-grooves are symmetrically arranged at the top ends of the upper blade 1 (6) and the upper blade 2 (7), and the two through-grooves are interconnected. The shielding sheet (8) is placed at the joint between the top ends of the upper blade 1 (6) and the upper blade 2 (7), and one end of the shielding sheet (8) facing the handle (1) passes through the two through-grooves and is fixedly connected to two fixing rods (19). The shielding sheet (8) is respectively connected to the two connecting rods (501) via the two fixing rods (19).

9. The multifunctional vaginal speculum for hysterosalpingography according to claim 1, characterized in that: The closing mechanism (9) comprises two sliding rods (901) and two sliding shells (902), the lower blade (2) is provided with a first card slot on both sides, the upper blade 1 (6) and the upper blade 2 (7) are provided with a second card slot on the downward side, the inner wall of the first card slot and the second card slot away from the handle (1) is provided with a through opening, the lower blade (2), the upper blade 1 (6), and the upper blade 2 (7) are arranged in an arc shape at their ends away from the handle (1), and the outer walls of the two sliding rods (901) and the two sliding shells (902) are provided with a card block and an arc plate (904). , a stud is provided on the arc plate (904), the two sliding rods (901) are clamped with the second clamping groove via a clamping block, and the arc plates (904) on the two sliding rods (901) are respectively detachably mounted on the upper blade 1 (6) and the upper blade 2 (7) via the stud, the two sliding housings (902) are clamped in the two first clamping grooves via the clamping block, and the arc plates (904) on the two sliding housings (902) are detachably mounted on the lower blade (2) via the stud, and blocking components are provided on the sliding rod (901) and the sliding housing (902) located on the same side.

10. The multifunctional vaginal speculum for hysterosalpingography according to claim 9, characterized in that: The blocking component comprises a rotating shaft (905), the rotating shaft (905) is rotatably connected in the sliding housing (902), and a plurality of coil springs (906) are installed on the rotating shaft (905), one of the coil springs (906) is located close to an end of the rotating shaft (905) away from the handle (1), and a transparent PU film (903) is arranged between the coil spring (906) and the plurality of coil springs (906), the rotating shaft (905) is connected to the inner wall of the sliding housing (902) through the coil spring (906), the transparent PU film (903) is fixedly arranged around the rotating shaft (905), and an end of the transparent PU film (903) away from the rotating shaft (905) passes through the inner wall of the sliding housing (902) and is fixedly connected to the outer wall of the corresponding sliding rod (901).

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