Gynecological and obstetric surgery positioning aid

Abstract

The present invention discloses a gynecological surgery positioning operation assistant, which relates to the technical field of gynecological examination instruments, and includes an annular elastic plate, on which three fixed sleeves are slidably sleeved; an expansion mechanism, which includes a spreading component and a self-locking component, the inner side of which is fixedly connected with a first blade, and the three output ends of the spreading component are one-to-one against the inner sides of the three first blades, and a plurality of the self-locking components are connected to the elastic plate. The present invention sets an expansion mechanism, controls the inflation amount through an inflatable ball, and enables the spreading component to achieve moderate expansion or contraction of the vagina, without the need for complex mechanical adjustment, and can better adapt to the tightness and size of the vagina of different patients, thereby reducing the pain and tension of the patients; and the spreading component can be withdrawn, so that the doctor's observation field of view is significantly expanded, which enables the doctor to observe the conditions of the vagina and cervix more clearly.

Description

Technical Field

[0001] The invention relates to the technical field of gynecological examination instruments, and in particular to a gynecological and obstetric surgery positioning operation assistant. Background Art

[0002] Vaginal speculum is often used for gynecological examination in clinic. The existing vaginal speculum is duckbill-shaped, and the two blades are rotated to open the patient's vagina for medical staff to observe. However, the two blades easily block the patient's vagina. When examining the patient, the angle of the entire speculum needs to be adjusted to view the front and back walls of the vagina, which can easily cause pain to the patient during the rotation of the speculum, and the medical staff needs to control the speculum, which increases the workload during the examination.

[0003] In the conventional technology, sliding blades are used, so that the blades can be slid when checking the front and back walls of the patient's vagina, without adjusting the angle of the entire speculum, thus reducing the pain caused to the patient. The angles of the two blades can be locked by locking bolts and nuts, without the need for medical staff to hold and press the speculum all the time. However, the structure for opening the blades is integrated with the blades, which limits the degree of opening of the two blades and easily obstructs the field of view, which is not conducive to providing a good observation field of view for medical staff.

[0004] In the prior art, an airbag is used to inflate. After the airbag is inflated, it expands to separate the two cover plates connected by the tower-shaped fixing rod, thereby stretching the patient's vagina. The airbag can then be withdrawn to facilitate observation by medical personnel. However, the two cover plates cannot be gradually closed again. Directly withdrawing the patient's vagina after the two cover plates are stretched can easily cause damage to the patient's vagina, increasing the patient's pain. In addition, there is a lack of lubrication for the patient's vagina. During the process of adjusting the angle of the blades and moving the blades, a lubrication effect cannot be simultaneously formed, increasing the patient's discomfort. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that in the prior art, after the two cover plates connected by the tower-shaped fixing rod are separated by the air bag, the two cover plates cannot be gradually closed again, and directly withdrawing the two cover plates from the patient's vagina after they are opened can easily cause damage to the patient's vagina and increase the patient's pain.

[0006] In order to achieve the above-mentioned object, the present invention adopts the following technical solution: a positioning operation assistant for gynecological and obstetric surgery comprises an annular elastic plate, on which three fixed sleeves are slidably sleeved;

[0007] An expansion mechanism, the expansion mechanism includes an expansion component and a self-locking component, a first blade is fixedly connected to the inner side of the fixed sleeve, three output ends of the expansion component are respectively against the inner sides of the three first blades, and a plurality of the self-locking components are connected to the elastic plate. After the self-locking component extends out of the fixed sleeve as the elastic plate is extended, the working end of the self-locking component is against the end of the fixed sleeve;

[0008] A rotating assembly, wherein the first blade is connected to the rotating assembly, and the output ends of the two rotating assemblies are connected to the same second blade;

[0009] A lubrication mechanism, wherein the three lubrication mechanisms are connected to the three first blades one by one, the lubrication mechanism comprises a toggle assembly, a plurality of lubrication bags are fixedly connected inside the first blade, an output end of the lubrication bag is connected to a liquid outlet, the liquid outlet is arranged on the first blade, and an end away from the lubrication bag is connected to the outer side of the first blade, the output end of the toggle assembly is pressed against the plurality of lubrication bags, a clutch assembly is connected to the rotating assembly, a transmission assembly is rotatably connected to the first blade, and an input end of the toggle assembly is connected to the clutch assembly and the transmission assembly.

[0010] In the above-mentioned gynecological and obstetric surgery positioning operation aid, the expansion component includes an inflatable ball, the output end of the inflatable ball is connected to an air supply pipe, the air supply pipe is connected to an air cylinder at one end away from the inflatable ball, three connecting cylinders are connected to the surrounding side of the air cylinder, a push block is sealingly and slidingly connected inside the connecting cylinder, the push block seals and penetrates the connecting cylinder at one end away from the air cylinder, and is fixedly connected to an arc block, a rubber pad is fixedly connected to the side of the arc block away from the push block, and the three rubber pads are respectively pressed against the inner sides of the three first blades at one side away from the arc block.

[0011] In the above-mentioned obstetrics and gynecology surgery positioning operation assistant, the self-locking component includes a rotating frame, the rotating frame is fixedly connected to the side of the elastic plate, a rotating block is rotatably connected to the rotating frame, a spring is fixedly connected between the rotating block and the side of the elastic plate, a telescopic groove is opened on the side of the elastic plate, a telescopic plate is slidably connected in the telescopic groove, the telescopic plate is L-shaped, the rotating block is abutted against the inner corner of the telescopic plate at one end away from the rotating frame, the elastic plate is fixedly connected with a first electromagnet at the side, the spring is located between the rotating frame and the telescopic plate, the first electromagnet is located between the spring and the telescopic plate, the end of the telescopic plate away from the inside of the telescopic groove has ferromagnetism, the first electromagnet is magnetically adsorbed and cooperated with the ferromagnetic end of the telescopic plate, and after the telescopic plate extends out of the fixed sleeve as the elastic plate is extended, the side away from the rotating block abuts against the end of the fixed sleeve.

[0012] In the above-mentioned obstetrics and gynecology surgery positioning operation aid, the rotating assembly includes two handles, both of which are lockably connected to the first blade, the end of the handle away from the elastic plate is coaxially fixedly connected with the seventh bevel gear, the seventh bevel gear is meshed with the sixth bevel gear, the sixth bevel gear is coaxially fixedly connected with a rotating rod, the rotating rod is rotatably connected in the first blade, and the opposite ends of the two rotating rods are fixedly connected to the same second blade, and the second blade is made of rubber and is elastic.

[0013] In the above-mentioned gynecological and obstetric surgery positioning operation assistant, a water absorption plate is fixedly connected to the outer side of the second blade, and the water absorption plate is made of polyvinyl alcohol.

[0014] In the above-mentioned gynecological and obstetric surgery positioning operation assistant, the first blade is made of stainless steel, and the elastic plate and the three fixing sleeves are covered with an outer shell.

[0015] In the above-mentioned obstetrics and gynecology surgery positioning operation aid, the toggle assembly includes a toggle rod, which is rotatably connected to the first blade, and a plurality of cams are fixedly connected to the toggle rod, and the plurality of cams are in one-to-one contact with a plurality of lubrication bags, and a fourth bevel gear is coaxially fixedly connected to the toggle rod, and the fourth bevel gear is connected to the clutch assembly and the transmission assembly.

[0016] In the above-mentioned obstetrics and gynecology surgery positioning operation assistant, the clutch assembly includes a second bevel gear, which is coaxially fixedly connected to the handle, and the second bevel gear is meshed with the first bevel gear. Two first gears and one second gear are rotatably connected in the first blade, and a second electromagnet is installed on the first gear. The first bevel gear has ferromagnetism, and the second electromagnet is magnetically adsorbed and cooperated with the first bevel gear. The two first gears are meshed with the same second gear, and a third bevel gear is coaxially fixedly connected to the second gear, and the third bevel gear is meshed with one side of the fourth bevel gear.

[0017] In the above-mentioned obstetrics and gynecology surgery positioning operation assistant, the transmission assembly includes a first telescopic rod, which is rotatably connected to the first blade, and the middle part of the first telescopic rod passes through a fixed sleeve. The elastic plate is provided with a strip groove for the movement of the first telescopic rod. The first telescopic rod extends into the first blade and is coaxially fixedly connected to a fifth bevel gear at one end, and the fifth bevel gear is meshed with the other side of the fourth bevel gear.

[0018] The above-mentioned gynecological and obstetric surgery positioning operation assistant also includes a support assembly, and the three support assemblies are connected to the inner sides of the three first blades one by one. The support assembly includes a third blade, and a slide groove is coaxially opened on the inner side of the first blade. Two third blades are symmetrically slidably connected in the slide groove, and the two third blades are fixedly connected to a second telescopic rod at one end close to the elastic plate. A plurality of elastic bands are fixedly connected to the inner sides of the three first blades, and the plurality of elastic bands are located between the first blade and the third blade, and are in sliding contact with the adjacent side of the first blade and the third blade.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] 1. The present invention provides an expansion mechanism and controls the inflation amount through an inflatable ball, so that the expansion component can achieve moderate expansion or contraction of the vagina without complicated mechanical adjustment, and can better adapt to the tightness and size of the vagina of different patients, thereby reducing the pain and tension of the patients; and the expansion component can be withdrawn, so that the doctor's observation field of view is significantly expanded, which enables the doctor to observe the condition of the vagina and cervix more clearly, and to perform examinations without continuous pressure with both hands, which effectively reduces the burden on the doctor's hands, reduces hand fatigue, and improves the efficiency of the examination.

[0021] 2. The present invention sets a rotating component and a second blade. By turning the handle, the angle between the second blade and the first blade can be adjusted, so that the second blade can expand to a small extent in the vagina. A water absorption plate is provided on the second blade, which can absorb moisture in the vaginal secretions and expand itself. It can keep the surgical area clear and prevent the secretions from affecting the doctor's vision or operation, and can also have a certain expansion effect on the surrounding tissues, which helps the doctor to observe or operate better.

[0022] 3. The present invention provides a lubrication mechanism. When the handle is turned to adjust the angle of the second blade, the second electromagnet is energized to form a linkage with the clutch assembly, so that when the handle is turned, the clutch assembly drives the toggle assembly to squeeze the lubrication bag, so that the lubricating liquid in the lubrication bag flows out from the liquid outlet on the first blade to form a lubrication effect; at the same time, when the first telescopic rod is toggled to make the first blade slide, the first telescopic rod is rotated at the same time, and the toggle assembly is driven by the transmission assembly to squeeze the lubrication bag to form a lubrication effect, ensuring that the lubricating liquid is used for lubrication only when the corresponding blade is rotated or slid. Such precise control of the amount of lubricating liquid helps to reduce irritation and discomfort to sensitive areas of the patient.

[0023] 4. The present invention provides a support assembly and uses the second telescopic rod to move the third blade, so that the third blade can support the inward-facing vaginal wall, and the elastic belt is used for transition to prevent the third blade from scratching the vaginal wall when sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural schematic diagram of a gynecological and obstetric surgery positioning and operation assistant proposed by the present invention;

[0025] Figure 2 This is a structural schematic diagram of a gynecological and obstetric surgery positioning and operation assistant proposed by the present invention in an unfolded state;

[0026] Figure 3 This is a schematic diagram of the blade structure of a positioning operation assistant for gynecological and obstetric surgery proposed by the present invention;

[0027] Figure 4 This is a disassembled diagram of the first blade and the second blade of a positioning operation assistant for gynecological and obstetric surgery proposed by the present invention;

[0028] Figure 5 A bottom view of a first blade of a gynecological and obstetric surgery positioning operation assistant proposed by the present invention;

[0029] Figure 6 This is a schematic diagram of the internal structure of the first blade of a gynecological and obstetric surgery positioning operation assistant proposed by the present invention;

[0030] Figure 7 This is a schematic diagram of the structure of the expansion component of a positioning operation aid for gynecological and obstetric surgery proposed by the present invention;

[0031] Figure 8 This is a partial cross-sectional structural schematic diagram of a spreading component of a positioning and operating aid for gynecological and obstetric surgery proposed by the present invention;

[0032] Fig. 9 for Figure 2 A detailed enlarged picture of point A;

[0033] Fig.10 for Figure 5 A magnified view of the detail at B;

[0034] Fig.11 for Figure 5 A magnified view of the detail at C;

[0035] In the figure: 1 shell, 2 first blade, 3 water absorption plate, 4 second blade, 5 elastic belt, 6 first telescopic rod, 7 fixed sleeve, 8 elastic plate, 9 inflatable ball, 10 air pipe, 11 connecting tube, 12 arc block, 13 handle, 14 third blade, 15 rotating rod, 16 second telescopic rod, 17 rubber pad, 18 slide groove, 19 cam, 20 first gear, 21 second gear, 22 push block, 23 telescopic plate, 24 rotating block, 25 spring, 26 first electromagnet, 27 first bevel gear, 28 second bevel gear, 29 third bevel gear, 30 fourth bevel gear, 31 fifth bevel gear, 32 second electromagnet, 33 sixth bevel gear, 34 seventh bevel gear. DETAILED DESCRIPTION

[0036] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0037] Reference Figure 1 and Figure 2 A gynecological and obstetric surgery positioning operation assistant comprises an annular elastic plate 8, on which three fixed sleeves 7 are slidably sleeved.

[0038] Reference Figure 2 , Figure 7-Figure 9 , expansion mechanism, the expansion mechanism includes an expansion component and a self-locking component. The first blade 2 is fixedly connected to the inner side of the fixed sleeve 7. The three output ends of the expansion component are respectively against the inner sides of the three first blades 2. Multiple self-locking components are connected to the elastic plate 8. After the self-locking component extends out of the fixed sleeve 7 as the elastic plate 8 extends, its working end is against the end of the fixed sleeve 7.

[0039] The expansion component includes an inflatable ball 9, which adopts existing technology and is used for inflation and deflation. The output end of the inflatable ball 9 is connected to an air supply pipe 10, and the end of the air supply pipe 10 away from the inflatable ball 9 is connected to an air cylinder. Three connecting cylinders 11 are connected to the surrounding side of the air cylinder. A push block 22 is sealed and slidably connected inside the connecting cylinder 11. The push block 22 seals and penetrates the connecting cylinder away from the end of the air cylinder and is fixedly connected to an arc block 12. A rubber pad 17 is fixedly connected to the side of the arc block 12 away from the push block 22. The three rubber pads 17 are against the inner sides of the three first blades 2 on the side away from the arc block 12 in a one-to-one correspondence.

[0040] The self-locking component includes a rotating frame, which is fixedly connected to the side of the elastic plate 8. A rotating block 24 is rotatably connected to the rotating frame. A spring 25 is fixedly connected between the rotating block 24 and the side of the elastic plate 8. A telescopic groove is opened on the side of the elastic plate 8, and a telescopic plate 23 is slidably connected in the telescopic groove. The telescopic plate 23 is L-shaped, and the rotating block 24 abuts against the inner corner of the telescopic plate 23 at one end away from the rotating frame. A first electromagnet 26 is fixedly connected to the side of the elastic plate 8, and the spring 25 is located between the rotating frame and the telescopic plate 23. The first electromagnet 26 is located between the spring 25 and the telescopic plate 23. The end of the telescopic plate 23 away from the inside of the telescopic groove has ferromagnetism, and the first electromagnet 26 is magnetically adsorbed and matched with the ferromagnetic end of the telescopic plate 23. After the telescopic plate 23 extends out of the fixed sleeve 7 as the elastic plate 8 stretches, the side away from the rotating block 24 abuts against the end of the fixed sleeve 7.

[0041] Reference Figure 3 , Figure 4 , Figure 6 and Fig.11 , a rotating component, a first blade 2 is connected to a rotating component, and output ends of the two rotating components are connected to the same second blade 4.

[0042] The rotating assembly includes two handles 13, and both handles 13 are lockably connected to the first blade 2. The end of the handle 13 away from the elastic plate 8 is coaxially fixedly connected to the seventh bevel gear 34, the seventh bevel gear 34 is meshed with the sixth bevel gear 33, and the sixth bevel gear 33 is coaxially fixedly connected to the rotating rod 15, the rotating rod 15 is rotatably connected to the first blade 2, and the opposite ends of the two rotating rods 15 are fixedly connected to the same second blade 4, and the second blade 4 is made of rubber and is elastic.

[0043] A water absorbing plate 3 is fixedly connected to the outer side of the second blade 4, and the water absorbing plate 3 is made of polyvinyl alcohol.

[0044] The first blade 2 is made of stainless steel, and the outer side of the elastic plate 8 and the three fixing sleeves 7 is covered with the outer shell 1.

[0045] Reference Figure 2 , Figure 6 and Fig.10 , lubrication mechanism, three lubrication mechanisms are connected to the three first blades 2 one by one, the lubrication mechanism includes a toggle assembly, a plurality of lubrication bags are fixedly connected inside the first blade 2, the output end of the lubrication bag is connected with a liquid outlet, the liquid outlet is arranged on the first blade 2, and the end away from the lubrication bag is connected with the outer side of the first blade 2, the output end of the toggle assembly is pressed against the plurality of lubrication bags, the rotating assembly is connected with a clutch assembly, the first blade 2 is rotatably connected with a transmission assembly, and the input end of the toggle assembly is connected with the clutch assembly and the transmission assembly.

[0046] The toggle assembly includes a toggle rod, which is rotatably connected to the first blade 2. A plurality of cams 19 are fixedly connected to the toggle rod. The plurality of cams 19 are in contact with a plurality of lubrication bags in a one-to-one correspondence. A fourth bevel gear 30 is coaxially fixedly connected to the toggle rod. The fourth bevel gear 30 is connected to the clutch assembly and the transmission assembly.

[0047] The clutch assembly includes a second bevel gear 28, which is coaxially fixedly connected to the handle 13, and the second bevel gear 28 is meshed with a first bevel gear 27. Two first gears 20 and a second gear 21 are rotatably connected in the first blade 2. A second electromagnet 32 ​​is installed on the first gear 20. The first bevel gear 27 is ferromagnetic. The second electromagnet 32 ​​and the first bevel gear 27 are magnetically adsorbed and matched. The two first gears 20 are meshed with the same second gear 21. A third bevel gear 29 is coaxially fixedly connected to the second gear 21, and the third bevel gear 29 is meshed with one side of the fourth bevel gear 30.

[0048] The transmission assembly includes a first telescopic rod 6, which is rotatably connected to the first blade 2. The middle part of the first telescopic rod 6 passes through a fixed sleeve 7. The elastic plate 8 is provided with a strip groove for the first telescopic rod 6 to move. One end of the first telescopic rod 6 extending into the first blade 2 is coaxially fixedly connected to a fifth bevel gear 31, and the fifth bevel gear 31 is meshed with the other side of the fourth bevel gear 30.

[0049] Reference Figure 3 and Figure 5 , also includes a supporting assembly, three supporting assemblies are connected to the inner sides of the three first blades 2 in a one-to-one correspondence, the supporting assembly includes a third blade 14, a slide groove 18 is coaxially opened on the inner side of the first blade 2, two third blades 14 are symmetrically slidably connected in the slide groove 18, and the two third blades 14 are fixedly connected to the second telescopic rod 16 at one end close to the elastic plate 8, and a plurality of elastic bands 5 are fixedly connected to the inner sides of the three first blades 2, and the plurality of elastic bands 5 are all located between the first blade 2 and the third blade 14, and are in sliding contact with the adjacent side of the first blade 2 and the third blade 14.

[0050] In the present invention, the front housing 1 will cover the operating end of the speculum, block the entry of dust and other impurities, keep the interior clean and dry, and thus extend the service life;

[0051] When in use, first remove the housing 1, use the thumb and index finger of one hand to gently separate the patient's labia to expose the vaginal opening, then use the other hand to hold the speculum, avoid the sensitive area around the urethra, and slowly insert it into the vagina along the posterior wall of the vagina;

[0052] First, insert the second blade 4, and then stop for a while. During this process, the handle 13 can be turned to drive the seventh bevel gear 34 to rotate, and then the sixth bevel gear 33 drives the rotating rod 15 to rotate, and finally drives the second blade 4 to rotate, so that the second blade 4 is first slightly expanded in the vagina. Since the second blade 4 is elastic, when the second blade 4 is turned outward by the two handles 13, the second blade 4 is stretched accordingly to ensure the expansion effect;

[0053] The second blade 4 also has a water-absorbing plate 3, which is generally made of polyvinyl alcohol, a commonly used water-absorbing and swelling polymer material, which has good biocompatibility and water absorption, and can swell rapidly after absorbing water, and its texture will become soft and have a certain elasticity;

[0054] After the second blade 4 enters the vagina, the water absorption plate 3 can absorb the water in the vaginal secretions and expand itself, which can not only keep the surgical area clear and prevent the secretions from affecting the doctor's vision or operation, but also have a certain expansion effect on the surrounding tissues, which helps the doctor to observe or operate better;

[0055] After the patient has adapted a little, the speculum can be inserted further. When the specified depth is reached, the insertion stops. At this time, the handle 13 can be turned to slowly adjust the angle of the second blade 4 to dilate the vagina in a small range. This is because the structure of the upper part of the vagina is relatively complex and usually narrow. Therefore, during the dilation process, attention should be paid to the dilation of this area first, which helps to lay a good foundation for the subsequent overall dilation.

[0056] After the upper part of the vagina is properly expanded, the handle 13 is locked so that the second blade 4 stops rotating, and the inflation ball 9 is pressed again, and the gas enters the gas cylinder through the gas pipe 10, and the gas pushes the push block 22 in the connecting tube forward through the gas cylinder and the connecting tube, so that the connecting tube 11 drives the arc block 12 to push open the whole blade of the speculum to expose the cervix, vaginal wall and vault.

[0057] The doctor only needs to control the inflation volume through the inflation ball 9 to achieve appropriate expansion of the vagina without complicated mechanical adjustment. Moreover, since the inflation volume can be gradually adjusted, the vaginal speculum can better adapt to the tightness and size of the vagina of different patients, thereby reducing the pain and tension of the patients.

[0058] There is a rubber pad 17 between the arc block 12 and the first blade 2, which can accurately define the position of the arc block 12 relative to the first blade 2. The friction and damping effect of the rubber pad 17 also help to maintain the relative stability between the arc block 12 and the first blade 2.

[0059] During the expansion of the first blade 2, the elastic plate 8 in the fixed sleeve 7 is stretched and extended. There are several self-locking components on the elastic plate 8. When the self-locking components are stretched out of the fixed sleeve 7 along with the elastic plate 8, the spring 25 will push the rotating block 24 to rotate, so that the telescopic plate 23 is extended out of the telescopic groove and abuts against the end of the fixed sleeve 7, which is convenient for fixing the position of the elastic plate 8 after the subsequent withdrawal of the expansion component. At this time, the entire expansion component can be taken out of the speculum, and the doctor's observation field of view will be significantly expanded, so that the doctor can observe the vagina and cervix more clearly.

[0060] In addition, doctors can perform examinations without having to press with both hands continuously, which effectively reduces the burden on doctors' hands, reduces hand fatigue, and improves the efficiency of examinations.

[0061] When the blades need to be reduced, the expansion assembly is first fixed in position, and then the first electromagnet 26 is energized to magnetically attract the ferromagnetic end of the telescopic plate 23, so that the telescopic plate 23 is retracted back into the telescopic groove and no longer blocks the end of the fixed sleeve 7. Then the inflatable ball 9 is deflated. Without the obstruction of the self-locking assembly, the elastic plate 8 gradually contracts under the action of its own elastic force and drives the self-locking assembly to be retracted into the fixed sleeve 7, so that the three first blades 2 can be gradually retracted.

[0062] When the device, i.e., the speculum, is fixed, the doctor can continue to turn the handle 13 to observe a specific area deep in the vagina by adjusting the second blade 4;

[0063] In addition, during the examination, the doctor can also slide the first telescopic rod 6 left and right to drive the first blade 2 to slide within a small range relative to the fixed sleeve 7, so that the doctor does not need to frequently change the speculum or adjust the patient's position, and can observe different parts of the vagina and cervix by rotating the first blade 2, which helps to save examination time and improve examination efficiency;

[0064] In addition, the first blade 2 is made of stainless steel, which can provide a more stable surgical field of view, and the second blade 4 is made of rubber, which can more gently contact and expand sensitive areas such as the inside of the vagina, thereby reducing damage to the vaginal wall and discomfort;

[0065] Such a design of inner and outer segmented blades allows the speculum to better adapt to the vaginal shapes and sizes of different patients. The doctor can adjust the opening degree and angle of the first blade 2 and the second blade 4 as needed, so that the segmented blades can form a more complex geometric shape, thereby providing a larger observation window when the vagina is stretched open, which helps the doctor to observe various parts of the vagina and cervix more comprehensively and reduce the possibility of omission. Moreover, compared with a speculum with only two blades, the design of three blades can not only form a larger observation window, but also disperse the pressure on the vaginal wall, reducing the concentrated pressure on a single part;

[0066] Two groups of third blades 14 are slidably connected under the first blade 2 through a slide groove 18. The two groups of third blades 14 are symmetrically arranged. When the vaginal wall is inwardly sunken, the second telescopic rod 16 can be slid so that the third blades 14 support the inwardly sunken vaginal wall. An elastic belt 5 is also installed between the first blade 2 and the third blade 14. The elastic belt 5 can not only partially support the inwardly sunken vaginal wall, but also prevent the third blade 14 from scratching the vaginal wall when sliding;

[0067] When the second blade 4 needs to be rotated, only the second electromagnet 32 ​​corresponding to the position of the handle 13 is in the energized state to avoid interference. The first gear 20 will be adsorbed on the first bevel gear 27 through the second electromagnet 32. At this time, the handle 13 is turned to rotate the second bevel gear 28, and then the fourth bevel gear 30 is driven to rotate through the first bevel gear 27, the first gear 20, the second gear 21 and the third bevel gear 29, thereby driving the transmission rod and the multiple cams 19 thereon to rotate. When the cam 19 rotates, it squeezes the lubrication bag in the first blade 2, and finally makes the lubricating liquid in the lubrication bag flow out from the liquid outlet on the first blade 2. Since the speculum is tilted when in use, the lubricating liquid will flow along the first blade 2 to the second blade 4, a part of which is used for the rotation lubrication of the second blade 4, and the excess part is absorbed by the water absorption plate 3;

[0068] When the first blade 2 needs to be slid, the corresponding two second electromagnets 32 are both in an unpowered state. When the first telescopic rod 6 is slid, the first telescopic rod 6 is rotated at the same time, so that the fifth bevel gear 31 can be rotated, and then the cam 19 is finally driven to rotate through the fourth bevel gear 30 and the transmission rod. When the cam 19 rotates, it squeezes the lubrication bag in the first blade 2, and finally the lubricating liquid in the lubrication bag flows out from the liquid outlet hole on the first blade 2.

[0069] This ensures that lubricating fluid is applied only when the corresponding blade is rotated or slid, and precise control of the amount of lubricating fluid helps reduce irritation and discomfort to the patient's sensitive areas.

[0070] 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 positioning and operation assistant for gynecological and obstetric surgery, characterized in that: include: An annular elastic plate (8), wherein three fixing sleeves (7) are slidably sleeved on the elastic plate (8); An expansion mechanism, the expansion mechanism comprising an expansion component and a self-locking component, the inner side of the fixed sleeve (7) is fixedly connected to a first blade (2), the three output ends of the expansion component are respectively pressed against the inner sides of the three first blades (2), a plurality of the self-locking components are connected to an elastic plate (8), after the self-locking components extend out of the fixed sleeve (7) as the elastic plate (8) is extended, the working end of the self-locking components is pressed against the end of the fixed sleeve (7), the expansion component comprises an inflatable ball (9), the output end of the inflatable ball (9) is connected to an air delivery pipe (10), The end of the gas delivery pipe (10) away from the inflatable ball (9) is connected to an air cylinder, and the periphery of the air cylinder is connected to three connecting cylinders (11), and a push block (22) is sealingly and slidably connected inside the connecting cylinder (11), and the push block (22) seals and penetrates the connecting cylinder (11) at one end away from the air cylinder, and is fixedly connected to an arc block (12), and a rubber pad (17) is fixedly connected to the side of the arc block (12) away from the push block (22), and the three rubber pads (17) are respectively pressed against the inner sides of the three first blades (2) at one side away from the arc block (12). The self-locking assembly comprises a rotating frame, the rotating frame is fixedly connected to the side of the elastic plate (8), a rotating block (24) is rotatably connected to the rotating frame, a spring (25) is fixedly connected between the rotating block (24) and the side of the elastic plate (8), a telescopic groove is provided on the side of the elastic plate (8), a telescopic plate (23) is slidably connected in the telescopic groove, the telescopic plate (23) is L-shaped, one end of the rotating block (24) away from the rotating frame abuts against the inner corner of the telescopic plate (23), and the side of the elastic plate (8) is fixedly connected A first electromagnet (26) is provided, the spring (25) is located between the rotating frame and the telescopic plate (23), the first electromagnet (26) is located between the spring (25) and the telescopic plate (23), the end of the telescopic plate (23) away from the interior of the telescopic groove has ferromagnetism, the first electromagnet (26) and the end of the telescopic plate (23) with ferromagnetism are magnetically adsorbed and matched, and after the telescopic plate (23) extends out of the interior of the fixed sleeve (7) as the elastic plate (8) extends, the side of the telescopic plate (23) away from the rotating block (24) abuts against the end of the fixed sleeve (7); A rotating assembly, wherein the first blade (2) is connected to a rotating assembly, two output ends of the rotating assembly are connected to the same second blade (4), the rotating assembly comprises two handles (13), both handles (13) are lockably rotatably connected in the first blade (2), one end of the handle (13) away from the elastic plate (8) is coaxially fixedly connected to a seventh bevel gear (34), the seventh bevel gear (34) is meshed with a sixth bevel gear (33), the sixth bevel gear (33) is coaxially fixedly connected to a rotating rod (15), the rotating rod (15) is rotatably connected in the first blade (2), the two ends of the rotating rods (15) facing away from each other are fixedly connected to the same second blade (4), and the second blade (4) is made of rubber and has elasticity; A lubrication mechanism, wherein the three lubrication mechanisms are connected to the three first blades (2) in a one-to-one correspondence, the lubrication mechanism comprises a toggle assembly, a plurality of lubrication bags are fixedly connected inside the first blade (2), an output end of the lubrication bag is connected to a liquid outlet, the liquid outlet is arranged on the first blade (2), and an end away from the lubrication bag is connected to the outside of the first blade (2), the output end of the toggle assembly is pressed against the plurality of lubrication bags, the rotating assembly is connected to a clutch assembly, the first blade (2) is rotatably connected to a transmission assembly, and the input end of the toggle assembly is connected to The clutch assembly is connected to the transmission assembly, the toggle assembly comprises a toggle rod, the toggle rod is rotatably connected to the inside of the first blade (2), a plurality of cams (19) are fixedly connected to the toggle rod, the plurality of cams (19) are in one-to-one contact with a plurality of lubrication bags, a fourth bevel gear (30) is coaxially fixedly connected to the toggle rod, the fourth bevel gear (30) is connected to the clutch assembly and the transmission assembly, the clutch assembly comprises a second bevel gear (28), the second bevel gear (28) is coaxially fixedly connected to the handle (13), the second bevel gear (28) is coaxially fixedly connected to the handle (13), The bevel gear (28) is meshed with a first bevel gear (27); two first gears (20) and a second gear (21) are rotatably connected inside the first blade (2); a second electromagnet (32) is mounted on the first gear (20); the first bevel gear (27) has ferromagnetism; the second electromagnet (32) and the first bevel gear (27) are magnetically adsorbed and matched; the two first gears (20) are meshed with the same second gear (21); the second gear (21) is coaxially fixedly connected with a third bevel gear (29); the first gear (20) is provided with a plurality of second bevel gears (29) and a plurality of second bevel gears (29) are provided on the second gear (21); The third bevel gear (29) is meshed with one side of the fourth bevel gear (30), the transmission assembly comprises a first telescopic rod (6), the first telescopic rod (6) is rotatably connected to the first blade (2), the middle of the first telescopic rod (6) passes through the fixed sleeve (7), the elastic plate (8) is provided with a strip groove for the first telescopic rod (6) to move, one end of the first telescopic rod (6) extending into the first blade (2) is coaxially fixedly connected with a fifth bevel gear (31), and the fifth bevel gear (31) is meshed with the other side of the fourth bevel gear (30).

2. The gynecological and obstetric surgery positioning and operation assistant according to claim 1, characterized in that: A water absorption plate (3) is fixedly connected to the outer side of the second blade (4), and the water absorption plate (3) is made of polyvinyl alcohol.

3. The gynecological and obstetric surgery positioning and operation assistant according to claim 1, characterized in that: The first blade (2) is made of stainless steel, and the outer sides of the elastic plate (8) and the three fixing sleeves (7) are covered with an outer shell (1).

4. The gynecological and obstetric surgery positioning and operation assistant according to claim 1, characterized in that: The invention also comprises a support assembly, wherein three of the support assemblies are connected to the inner sides of the three first blades (2) in a one-to-one correspondence, the support assembly comprises a third blade (14), a slide groove (18) is coaxially provided on the inner side of the first blade (2), two third blades (14) are symmetrically slidably connected in the slide groove (18), the two third blades (14) are fixedly connected to a second telescopic rod (16) at one end close to the elastic plate (8), a plurality of elastic bands (5) are fixedly connected to the inner sides of the three first blades (2), the plurality of elastic bands (5) are all located between the first blade (2) and the third blade (14), and are in sliding contact with the adjacent side of the first blade (2) and the third blade (14).

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