CN113598852A - Cervical dilator for gynecological operation - Google Patents

Abstract

The invention discloses a cervical dilator for gynecological surgery, which comprises an installation cylinder, wherein the left side of the installation cylinder is provided with a dilating plate, the right side of the dilating plate is provided with an installation component, the dilating plate is installed on the left side of the installation cylinder through the installation component, the right side of the installation component is provided with a fixing component, the right end of the inner side of the installation cylinder is fixedly connected with an installation plate, and the inner side of the installation plate is provided with a screw rod hole. Thereby will expand the fagging and carry out quick dismantlement, be convenient for change and wash expanding the fagging.

Description

Cervical dilator for gynecological operation

Technical Field

The invention relates to the field of gynecological operations, in particular to a cervical dilator for gynecological operations.

Background

The gynecological operation is called as gynecological minimally invasive operation, and the gynecological minimally invasive operation is just as the name suggests to reduce the damage of the operation to normal tissues as much as possible and reduce the influence of the operation on the functions of all the systems of the whole body to the greatest extent. Minimally invasive gynecological surgery relies on the increasing popularity of laparoscopic techniques and the increasing growth of female gynecological surgical techniques. In most impressions, gynecological surgery is associated with the lower abdomen or with a transverse or longitudinal incision. With the continuous improvement of gynecological operation techniques and the application of new instruments in clinic, gynecological operations are developing towards minimally invasive surgery. In the treatment of cervical disease, the cervix must be dilated.

However, in the prior art, most of the expanding plates are fixedly arranged on the expanding device, so that the expanding plates are inconvenient to replace and clean, and the existing expanding plates cannot be used for multiple times; moreover, because the cervix uteri needs to be expanded for a plurality of times in the gynecological operation, most of the expanding devices in the prior art adopt hollow-out designs, and the skin of a patient is easily injured.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide the cervical dilator for gynecological operation, the scheme is that the expanding support plate can be rapidly disassembled and assembled by arranging the mounting component, the inserting plate in the mounting component can be stably fixed on the inner side of the slot by arranging the fixing component, the expanding support plate is prevented from shaking after being mounted, when the expanding support plate needs to be disassembled, the inserting plate can be drawn out from the inner side of the slot only by taking out the fixing screw from the inner parts of the thread slot and the thread hole, and then the mounting block is taken out from the inner part of the mounting slot, so that the expanding support plate is rapidly disassembled, and the expanding support plate is convenient to replace and clean.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A cervical dilator for gynecological operation comprises an installation cylinder, wherein a stretching support plate is arranged on the left side of the installation cylinder, an installation assembly is arranged on the right side of the stretching support plate, the stretching support plate is installed on the left side of the installation cylinder through the installation assembly, a fixing assembly is arranged on the right side of the installation assembly, a mounting plate is fixedly connected with the right end of the inner side of the installation cylinder, a screw rod hole is formed in the inner side of the mounting plate, an adjusting rod is arranged on the inner side of the screw rod hole and comprises a push-pull rod and a threaded rod, the push-pull rod is rotatably connected with the threaded rod, the threaded rod is in threaded connection with the inner side of the screw rod hole, a rotating assembly is arranged on the right side of the threaded rod, a guide assembly is arranged on the inner side, located on the inner side of the installation cylinder, of the left side surface of the push-pull rod is provided with a transmission assembly, one end of the transmission assembly is fixedly connected with the stretching support plate, the other end of transmission assembly is provided with the connecting block, the spread groove has been seted up on the surface of push-and-pull rod, the connecting block is pegged graft in the inboard of spread groove, the both sides of spread groove all are provided with spacing subassembly, the outside of installation section of thick bamboo is provided with the silica gel cover, the silica gel cover cup joints the outside at the installation section of thick bamboo.

Further, the installation component is including the installation piece, the right side that expands the fagging is provided with the installation piece, the inboard fixedly connected with fixed axle of installation piece side, the surface of fixed axle rotates and is connected with the swivel becket, swivel becket and expansion fagging fixed connection, the mounting groove has been seted up on the right side surface of an installation section of thick bamboo, installation piece fixed mounting is in the inboard of mounting groove, the slot has been seted up on the right side of mounting groove, the right side fixedly connected with picture peg of installation piece, the picture peg is pegged graft in the inboard of slot.

Further, fixed subassembly includes the screw groove, the screw groove has been seted up directly over the surface of installation section of thick bamboo is located the slot, the bottom set screw hole in screw groove, the round hole has been seted up on the surface of picture peg, the bottom of slot is located the screw hole and has seted up the thread groove directly under, the inboard in screw groove is provided with the fixed screw, the inboard in screw hole and round hole and threaded connection at the thread groove is passed to the bottom of fixed screw.

Further, the rotating assembly comprises a fixing ring, the right side of the threaded rod is fixedly connected with the fixing ring, and the surface of the fixing ring is fixedly connected with a rotating handle.

Furthermore, the guide assembly comprises a fixing column, the fixing column is fixedly connected to the left end of the inner side of the mounting cylinder, a guide hole is formed in the inner side of the fixing column, and the push-pull rod is connected to the inner side of the guide hole in a sliding mode.

Further, the transmission assembly includes first groove piece and second groove piece, the inboard of first groove piece is rotated and is connected with first pivot, the first fixed block of fixed surface of first pivot is connected with, the inboard of second groove piece is rotated and is connected with the second pivot, the fixed surface of second pivot is connected with the second fixed block, fixedly connected with transfer line between first fixed block and the second fixed block, first groove piece with expand fagging fixed connection, second groove piece and connecting block fixed connection.

Furthermore, the limiting assembly comprises a cylindrical groove, a spring is fixedly mounted on the inner side of the cylindrical groove, a cylindrical pin is fixedly connected to one end of the spring, the cylindrical pin is connected to the inner side of the cylindrical groove in a sliding mode, a limiting groove is formed in the surface of the connecting block, the cylindrical pin is connected to the inner side of the limiting groove in a clamping mode, a guide groove is formed in the outer side of the cylindrical groove, a guide ring is fixedly connected to the surface of the cylindrical pin, and the guide ring is connected to the inner side of the guide groove in a sliding mode.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) this scheme is through setting up the installation component, can be with expanding the quick dismouting that carries on of fagging, and through setting up fixed subassembly, can be with the stable inboard of fixing at the slot of picture peg in the installation component, prevent to expand and take place to rock after the fagging installation, when need pull down and expand the fagging, only need take out the inside of fixed screw from thread groove and screw hole, can take out the picture peg from the inboard of slot, then take out the installation piece from the inside of mounting groove, thereby will expand the fagging and carry out quick dismantlement, be convenient for change and wash expanding the fagging.

(2) Through setting up an installation section of thick bamboo, threaded rod threaded connection in the regulation pole is in the inside in screw hole, adjusts the inboard that the pole is located an installation section of thick bamboo for adjust the pole and can not hurt patient's skin when rotating, and still be provided with the silica gel cover in the outside of an installation section of thick bamboo, when making and patient's skin contact, can not produce great different sense, make the patient can not feel uncomfortable when carrying out the operation of expanding for a plurality of times.

(3) Through setting up transmission assembly, the threaded rod can drive the push-and-pull rod and remove about when the screw rod downthehole rotation, the push-and-pull rod cooperation spacing subassembly can carry out fixed connection with the connecting block in the spread groove, thereby fix the second recess piece in transmission assembly on the surface of push-and-pull rod, when the push-and-pull rod removes, can drive the second recess piece and remove, the first pivot of second recess piece cooperation, the second pivot, first fixed block, second fixed block and transfer line drive expand the fagging and carry out the operation that opens and shuts, and expand the fagging and can carry out certain angle's rotation in one side of installation piece through fixed axle and swivel becket in the installation component.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic structural view of the expansion plate and the mounting assembly of the present invention;

FIG. 4 is an enlarged view of the portion A of the present invention;

FIG. 5 is an enlarged view of the structure of part B of the present invention;

fig. 6 is a schematic structural diagram of the transmission assembly of the present invention.

The reference numbers in the figures illustrate:

1. mounting the cylinder; 2. expanding a supporting plate; 3. mounting the component; 31. mounting blocks; 32. a fixed shaft; 33. a rotating ring; 34. mounting grooves; 35. inserting plates; 36. a slot; 4. a fixing assembly; 41. a screw groove; 42. a threaded hole; 43. a circular hole; 44. a thread groove; 45. fixing screws; 5. mounting a plate; 6. a screw hole; 7. adjusting a rod; 8. a threaded rod; 9. a rotating assembly; 91. a fixing ring; 92. rotating the handle; 10. a guide assembly; 101. fixing a column; 102. a guide hole; 11. a transmission assembly; 111. a first groove block; 112. a first rotating shaft; 113. a first fixed block; 114. a transmission rod; 115. a second groove block; 116. a second rotating shaft; 117. a second fixed block; 12. connecting blocks; 13. connecting grooves; 14. a limiting component; 141. a cylindrical groove; 142. a spring; 143. a cylindrical pin; 144. a limiting groove; 145. a guide groove; 146. a guide ring; 15. a silica gel sleeve; 16. a push-pull rod.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1-6, a cervical dilator for gynecological surgery comprises an installation cylinder 1, wherein a support expanding plate 2 is arranged on the left side of the installation cylinder 1, an installation component 3 is arranged on the right side of the support expanding plate 2, the support expanding plate 2 is installed on the left side of the installation cylinder 1 through the installation component 3, a fixing component 4 is arranged on the right side of the installation component 3, an installation plate 5 is fixedly connected to the right end of the inner side of the installation cylinder 1, a screw rod hole 6 is formed in the inner side of the installation plate 5, an adjusting rod 7 is arranged on the inner side of the screw rod hole 6, the adjusting rod 7 comprises a push-pull rod 16 and a threaded rod 8, the push-pull rod 16 is rotatably connected with the threaded rod 8, the threaded rod 8 is in threaded connection with the inner side of the screw rod hole 6, a rotating component 9 is arranged on the right side of the threaded rod 8, a guide component 10 is arranged on the left end of the push-pull rod 16, which is positioned on the inner side of the installation cylinder 1, the left side surface of the push-pull rod 16 is provided with a transmission component 11, one end of the transmission component 11 is fixedly connected with the expansion supporting plate 2, the other end of the transmission component 11 is provided with a connecting block 12, the surface of the push-pull rod 16 is provided with a connecting groove 13, the connecting block 12 is inserted into the inner side of the connecting groove 13, both sides of the connecting groove 13 are provided with limiting components 14, the outer side of the installation cylinder 1 is provided with a silica gel sleeve 15, the silica gel sleeve 15 is sleeved on the outer side of the installation cylinder 1, the expansion supporting plate 2 can be rapidly disassembled and assembled by arranging the installation component 3, the inserting plate 35 in the installation component 3 can be stably fixed in the inner side of the inserting groove 36 by arranging the fixing component 4, the expansion supporting plate 2 is prevented from shaking after being installed, when the expansion supporting plate 2 needs to be disassembled, only the fixing screw 45 needs to be taken out from the insides of the thread groove 44 and the thread hole 42, can take picture peg 35 from the inboard of slot 36 out, then will install piece 31 and take out from the inside of mounting groove 34, thereby will expand fagging 2 and carry out quick dismantlement, be convenient for change and wash expanding fagging 2, through setting up installation section of thick bamboo 1, 8 threaded connection of threaded rod in the regulation pole 7 are in the inside in screw rod hole 6, it is located the inboard of installation section of thick bamboo 1 to adjust pole 7, make it can not injure patient's skin to adjust pole 7 when rotating, and still be provided with silica gel cover 15 in the outside of installation section of thick bamboo 1, make when contacting with patient's skin, can not produce great different feelings, make the patient can not feel uncomfortable when carrying out the operation of expanding many times.

Referring to fig. 2-4, the mounting assembly 3 includes a mounting block 31, a mounting block 31 is disposed on the right side of the expansion plate 2, a fixed shaft 32 is fixedly connected to the inner side of the mounting block 31, a rotating ring 33 is rotatably connected to the surface of the fixed shaft 32, the rotating ring 33 is fixedly connected to the expansion plate 2, a mounting groove 34 is formed in the right surface of the mounting barrel 1, the mounting block 31 is fixedly mounted on the inner side of the mounting groove 34, a slot 36 is formed in the right side of the mounting groove 34, a plug board 35 is fixedly connected to the right side of the mounting block 31, the plug board 35 is inserted into the inner side of the slot 36, the fixing assembly 4 includes a screw groove 41, a screw groove 41 is formed in the surface of the mounting barrel 1 directly above the slot 36, a threaded hole 42 is formed in the bottom of the screw groove 41, a circular hole 43 is formed in the surface of the plug board 35, a threaded groove 44 is formed in the bottom of the slot 36 directly below the screw hole, the inboard of screw groove 41 is provided with fixed screw 45, screw hole 42 and round hole 43 and threaded connection are passed to fixed screw 45's bottom in screw groove 44, through setting up installation component 3, can be with expanding the inboard of carrying out the dismouting that fagging 2 is quick, and through setting up fixed component 4, can be with the stable inboard of fixing at slot 36 of picture peg 35 in installation component 3, prevent to expand fagging 2 installation back and take place to rock, when needs pull down expand fagging 2, only need take out fixed screw 45 from the inside of screw groove 44 and screw hole 42, can take out picture peg 35 from the inboard of slot 36, then take out installation piece 31 from the inside of mounting groove 34, thereby will expand fagging 2 and carry out quick dismantlement, be convenient for change and wash expanding fagging 2.

Referring to fig. 1-2, the rotating assembly 9 includes a fixing ring 91, the right side of the threaded rod 8 is fixedly connected with the fixing ring 91, the surface of the fixing ring 91 is fixedly connected with a rotating handle 92, the guiding assembly 10 includes a fixing column 101, the left end of the inner side of the mounting cylinder 1 is fixedly connected with the fixing column 101, the inner side of the fixing column 101 is provided with a guiding hole 102, the push-pull rod 16 is slidably connected to the inner side of the guiding hole 102, the rotating assembly 9 is arranged, the rotating handle 92 is rotated to drive the threaded rod 8 to rotate in cooperation with the fixing ring 91, the opening and closing of the expansion plate 2 are conveniently adjusted by the adjusting rod 7, and the push-pull rod 16 slides on the inner side of the guiding hole 102 by arranging the guiding assembly 10, so that the push-pull rod 16 can move left and right stably.

Referring to fig. 5 to 6, the transmission assembly 11 includes a first groove block 111 and a second groove block 115, a first rotating shaft 112 is rotatably connected to an inner side of the first groove block 111, a first fixing block 113 is fixedly connected to a surface of the first rotating shaft 112, a second rotating shaft 116 is rotatably connected to an inner side of the second groove block 115, a second fixing block 117 is fixedly connected to a surface of the second rotating shaft 116, a transmission rod 114 is fixedly connected between the first fixing block 113 and the second fixing block 117, the first groove block 111 is fixedly connected to the expansion plate 2, the second groove block 115 is fixedly connected to the connection block 12, the limiting assembly 14 includes a cylindrical groove 141, a spring 142 is fixedly mounted to an inner side of the cylindrical groove 141, a cylindrical pin 143 is fixedly connected to one end of the spring 142, the cylindrical pin 143 is slidably connected to an inner side of the cylindrical groove 141, a limiting groove 144 is formed on a surface of the connection block 12, the cylindrical pin 143 is clamped inside the limit groove 144, the outer side of the cylindrical groove 141 is provided with a guide groove 145, the surface of the cylindrical pin 143 is fixedly connected with a guide ring 146, the guide ring 146 is slidably connected inside the guide groove 145, the limit component 14 is arranged, the spring 142 in the limit component 14 drives the cylindrical pin 143 to slide inside the cylindrical groove 141, so that the cylindrical pin 143 can be clamped inside the limit groove 144, the connecting block 12 is stably installed inside the connecting groove 13, the arranged guide ring 146 is driven by the cylindrical pin 143 to slide inside the guide groove 145, the cylindrical pin 143 can be prevented from falling off from the inner side of the cylindrical groove 141, the push-pull rod 16 is driven to move left and right by the transmission component 11 when the threaded rod 8 rotates in the threaded rod hole 6, the push-pull rod 16 cooperates with the limit component 14 to fixedly connect the connecting block 12 inside the connecting groove 13, therefore, the second groove block 115 in the transmission assembly 11 is fixed on the surface of the push-pull rod 16, when the push-pull rod 16 moves, the second groove block 115 is driven to move, the second groove block 115 cooperates with the first rotating shaft 112, the second rotating shaft 116, the first fixing block 113, the second fixing block 117 and the transmission rod 114 to drive the expansion plate 2 to open and close, and the expansion plate 2 can rotate at a certain angle on one side of the mounting block 31 through the fixed shaft 32 and the rotating ring 33 in the mounting assembly 3.

According to the invention, the expanding support plate 2 can be rapidly disassembled and assembled by arranging the mounting component 3, the inserting plate 35 in the mounting component 3 can be stably fixed on the inner side of the slot 36 by arranging the fixing component 4, the expanding support plate 2 is prevented from shaking after being mounted, when the expanding support plate 2 needs to be disassembled, the inserting plate 35 can be drawn out from the inner side of the slot 36 only by taking out the fixing screw 45 from the inner parts of the thread groove 44 and the thread hole 42, then the mounting block 31 is taken out from the inner part of the mounting groove 34, so that the expanding support plate 2 can be rapidly disassembled, the expanding support plate 2 is convenient to be replaced and cleaned, by arranging the mounting cylinder 1, the threaded rod 8 in the adjusting rod 7 is in threaded connection with the inner part of the threaded rod hole 6, the adjusting rod 7 is arranged on the inner side of the mounting cylinder 1, so that the adjusting rod 7 can not hurt the skin of a patient when rotating, and the outer side of the mounting cylinder 1 is also provided with the silica gel sleeve 15, when the connecting block is contacted with the skin of a patient, great abnormal feeling can not be generated, the patient can not feel uncomfortable when the expanding operation is carried out for a plurality of times, the rotating assembly 9 is arranged, the rotating handle 92 is rotated to be matched with the fixing ring 91 to drive the threaded rod 8 to rotate, the opening and closing of the expanding plate 2 can be conveniently adjusted through the adjusting rod 7, the push-pull rod 16 slides on the inner side of the guide hole 102 through the arrangement of the guide assembly 10, the push-pull rod 16 can stably move left and right, the spring 142 in the limit assembly 14 drives the cylindrical pin 143 to slide on the inner side of the cylindrical groove 141 through the arrangement of the limit assembly 14, the cylindrical pin 143 can be clamped on the inner side of the limit groove 144, the connecting block 12 is stably arranged in the connecting groove 13, the arranged guide ring 146 slides on the inner side of the guide groove 145 under the driving of the cylindrical pin 143, and the cylindrical pin 143 can be prevented from falling off from the inner side of the cylindrical groove 141, through the arrangement of the transmission assembly 11, when the threaded rod 8 rotates in the threaded rod hole 6, the push-pull rod 16 is driven to move left and right, the push-pull rod 16 is matched with the limiting assembly 14 to fixedly connect the connecting block 12 in the connecting groove 13, so that the second groove block 115 in the transmission assembly 11 is fixed on the surface of the push-pull rod 16, when the push-pull rod 16 moves, the second groove block 115 is driven to move, the second groove block 115 is matched with the first rotating shaft 112, the second rotating shaft 116, the first fixing block 113, the second fixing block 117 and the transmission rod 114 to drive the expansion plate 2 to open and close, and the expansion plate 2 can rotate at a certain angle on one side of the installation block 31 through the fixing shaft 32 and the rotating ring 33 in the installation assembly 3.

The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims (3)

1. The utility model provides a cervical dilator for gynecological operation, includes an installation section of thick bamboo (1), its characterized in that: the left side of the installation cylinder (1) is provided with an expansion supporting plate (2), the right side of the expansion supporting plate (2) is provided with an installation component (3), the expansion supporting plate (2) is installed on the left side of the installation cylinder (1) through the installation component (3), the right side of the installation component (3) is provided with a fixed component (4), the right end of the inner side of the installation cylinder (1) is fixedly connected with an installation plate (5), the inner side of the installation plate (5) is provided with a screw rod hole (6), the inner side of the screw rod hole (6) is provided with an adjusting rod (7), the adjusting rod (7) comprises a push-pull rod (16) and a threaded rod (8), the push-pull rod (16) is rotatably connected with the threaded rod (8), the threaded rod (8) is in threaded connection with the inner side of the screw rod hole (6), the right side of the threaded rod (8) is provided with a rotating component (9), the left end of the push-pull rod (16) is positioned on the inner side of the installation cylinder (1) and is provided with a guide component (10), the left side surface of the push-pull rod (16) is provided with a transmission assembly (11), one end of the transmission assembly (11) is fixedly connected with the expansion supporting plate (2), the other end of the transmission assembly (11) is provided with a connecting block (12), the surface of the push-pull rod (16) is provided with a connecting groove (13), the connecting block (12) is inserted into the inner side of the connecting groove (13), both sides of the connecting groove (13) are provided with limiting assemblies (14), the outer side of the installation cylinder (1) is provided with a silica gel sleeve (15), the silica gel sleeve (15) is sleeved on the outer side of the installation cylinder (1), the installation assembly (3) comprises an installation block (31), the right side of the expansion supporting plate (2) is provided with an installation block (31), the inner side of the installation block (31) is fixedly connected with a fixed shaft (32), the surface of the fixed shaft (32) is rotatably connected with a rotating ring (33), the utility model discloses a screw mounting structure of a mounting block, including a rotating ring (33), an installation piece (1), an installation piece (31), a slot (36), an installation piece (35), a screw hole (42), a round hole (43), a screw groove (44), the inboard of screw hole (41), the inboard of screw groove (41) is seted up, swivel becket (33) and expansion fagging (2) fixed connection, installation piece (31) fixed mounting has been seted up on the right side of installation piece (34), slot (36) has been seted up on the right side surface of installation piece (31), the inboard of installation piece (31) is pegged graft in slot (36), fixed subassembly (4) include screw groove (41), screw groove (41) has been seted up directly over slot (36) on the surface of installation piece (1), screw hole (42) has been seted up to the bottom of screw groove (41), round hole (43) has been seted up on the surface of picture peg (35), screw groove (36) has been located screw hole and screw groove (44) has been seted up directly under, the inboard of screw groove (41) is provided with fixed screw (45), the bottom of the fixing screw (45) penetrates through a threaded hole (42) and a round hole (43) and is in threaded connection with the inner side of a threaded groove (44), the transmission assembly (11) comprises a first groove block (111) and a second groove block (115), the inner side of the first groove block (111) is rotatably connected with a first rotating shaft (112), the surface of the first rotating shaft (112) is fixedly connected with a first fixing block (113), the inner side of the second groove block (115) is rotatably connected with a second rotating shaft (116), the surface of the second rotating shaft (116) is fixedly connected with a second fixing block (117), a transmission rod (114) is fixedly connected between the first fixing block (113) and the second fixing block (117), the first groove block (111) is fixedly connected with the expansion plate (2), the second groove block (115) is fixedly connected with a connecting block (12), and the limiting assembly (14) comprises a cylindrical groove (141), the spring (142) is fixedly mounted on the inner side of the cylindrical groove (141), one end of the spring (142) is fixedly connected with a cylindrical pin (143), the cylindrical pin (143) is connected to the inner side of the cylindrical groove (141) in a sliding mode, a limiting groove (144) is formed in the surface of the connecting block (12), the cylindrical pin (143) is connected to the inner side of the limiting groove (144) in a clamping mode, a guide groove (145) is formed in the outer side of the cylindrical groove (141), a guide ring (146) is fixedly connected to the surface of the cylindrical pin (143), and the guide ring (146) is connected to the inner side of the guide groove (145) in a sliding mode.

2. The cervical dilator for gynecological operation according to claim 1, wherein: the rotating assembly (9) comprises a fixing ring (91), the right side of the threaded rod (8) is fixedly connected with the fixing ring (91), and the surface of the fixing ring (91) is fixedly connected with a rotating handle (92).

3. The cervical dilator for gynecological operation according to claim 1, wherein: the guide assembly (10) comprises a fixing column (101), the fixing column (101) is fixedly connected to the left end of the inner side of the mounting cylinder (1), a guide hole (102) is formed in the inner side of the fixing column (101), and the push-pull rod (16) is connected to the inner side of the guide hole (102) in a sliding mode.

Images