A medical uterine manipulator

Abstract

The present invention discloses a medical uterine manipulator, which includes a membrane expanding mechanism. A rubber membrane sleeve is fixedly sleeved on the upper part of the outer surface of the membrane expanding mechanism. An outer sleeve is sleeved on the middle part of the outer surface of the membrane expanding mechanism. A regulating mechanism is threadedly connected to the lower part of the inner cylindrical surface of the outer sleeve. The lower part of the outer cylindrical surface of the membrane expanding mechanism is movably connected to the lower part of the inner cylindrical surface of the regulating mechanism through a bearing. A rotating sleeve and a collar are sleeved on the lower part of the outer cylindrical surface of the regulating mechanism. A scale rod is fixedly installed at the upper end of the collar. A lifting mechanism is sleeved on the upper part of the outer cylindrical surface of the outer sleeve. An expanding mechanism is sleeved on the upper part of the outer cylindrical surface of the lifting mechanism. The expanding mechanism is in transmission connection with the lifting mechanism. A rubber sleeve is sleeved on the expanding mechanism. For the medical uterine manipulator of the present invention, when moving the position of the uterus, it is easier to move the uterus to an ideal position, improving the efficiency and effect of uterine position adjustment and having higher practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a medical uterine manipulator. Background Art

[0002] With the continuous development of medicine, gynecological laparoscopic surgery is divided into two types: pneumoperitoneum and gasless. In either case, it is often necessary to swing the uterus and adjust the uterine position to perform surgical treatment on patients. For this purpose, a professional medical device called a uterine manipulator is required. The uterine manipulator is often used as a surgical auxiliary tool to assist doctors in completing surgeries. The existing uterine manipulators have the following deficiencies when in use:

[0003] 1. Most of them have a simple structure, poor controllability, and great operation difficulty;

[0004] 2. When inserting into the uterine cavity or lifting the uterus, if the force is too large, it is easy to penetrate the uterine cavity, resulting in infections, bleeding, tumor metastasis, etc.;

[0005] 3. When adjusting the position of the uterus, relative displacement is likely to occur between the manipulator and the uterus, and it is not easy to move the uterus to the ideal position;

[0006] 4. For the used fornix cups, the sizes of the cup bodies are fixed in several models, and there are still deficiencies in the cooperation with the cervix. Summary of the Invention

[0007] The main purpose of the present invention is to provide a medical uterine manipulator, which can effectively solve the problems in the background art.

[0008] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0009] A medical uterine manipulator, comprising a membrane expanding mechanism, an upper portion of the outer surface of the membrane expanding mechanism is sleeved and fixed with a rubber membrane sleeve, a middle portion of the outer surface of the membrane expanding mechanism is sleeved with an outer sleeve, a lower portion of the inner cylindrical surface of the outer sleeve is threadedly connected with an adjusting mechanism, a lower portion of the outer cylindrical surface of the membrane expanding mechanism is movably connected with a lower portion of the inner cylindrical surface of the adjusting mechanism through a bearing, a lower portion of the outer cylindrical surface of the adjusting mechanism is sleeved with a rotating sleeve and a collar, the collar is movably connected with an upper end surface of the rotating sleeve, a scale rod is fixedly installed at an upper end of the collar, the scale rod is movably inserted and connected with a lower end of the outer sleeve, an upper portion of the outer cylindrical surface of the outer sleeve is sleeved with a lifting mechanism, an upper portion of the outer cylindrical surface of the lifting mechanism is sleeved with an expanding mechanism, the expanding mechanism is in transmission connection with the lifting mechanism, and a rubber sleeve is sleeved on the expanding mechanism; the membrane expanding mechanism comprises a bottom plate, the bottom plate is fixedly installed at an upper end of the outer sleeve, a pull rod is movably inserted and installed at an upper end of the bottom plate, a guide head is fixedly installed at an upper end of the pull rod, a lower end of the pull rod passes through an inner cavity of the outer sleeve and extends below the outer sleeve, a spoke is fixedly installed between a lower end of the guide head and an upper end of the bottom plate, a plurality of spokes are provided and are distributed in a circular array, and an outer side surface of the spoke is fixedly connected with an inner side surface of the rubber membrane sleeve; the adjusting mechanism comprises an external threaded pipe, the external threaded pipe is threadedly connected with a lower portion of the inner cylindrical surface of the outer sleeve, a first connecting pipe is fixedly installed at a lower end of the external threaded pipe, a second connecting pipe is fixedly connected to a lower end of the first connecting pipe, and a retaining ring is sleeved and fixed on a lower portion of the outer cylindrical surface of the first connecting pipe; the lower end of the pull rod sequentially passes through inner cavities of the external threaded pipe, the first connecting pipe and the second connecting pipe and extends below the second connecting pipe, and a lower portion of the outer cylindrical surface of the pull rod is movably connected with an inner cylindrical surface of the second connecting pipe through a bearing.

[0010] Preferably, the lifting mechanism comprises a sliding pipe, the sliding pipe is movably sleeved on an upper portion of the outer cylindrical surface of the outer sleeve, a support plate is sleeved and fixed on an upper portion of the outer cylindrical surface of the sliding pipe, a sliding frame is fixedly installed at an upper end of the support plate, a plurality of sliding frames are provided and are distributed in a circular array centered on the sliding pipe, an adjusting rod is movably inserted and installed at a lower end of the support plate, an upper end of the adjusting rod extends above the support plate and is fixedly installed with a driving gear, a locking knob is threadedly installed on the outer cylindrical surface of the sliding pipe, the locking knob is in contact with the outer cylindrical surface of the outer sleeve, a support is sleeved and fixed on a lower portion of the outer cylindrical surface of the adjusting rod, and a limiting screw is threadedly connected to an upper end of the support.

[0011] Preferably, the expansion mechanism includes a swivel ring, which is movably sleeved on the outer sleeve. A driving disk is fixedly installed at the lower end of the swivel ring, and the driving disk is movably sleeved on the sliding tube. Tooth grooves are formed on the circumferential side surface of the driving disk. The upper end of the swivel ring is movably connected to a push rod through a shaft. The upper end of the push rod is inserted and movably installed with a connecting shaft. The lower end of the connecting shaft extends below the push rod and is fixedly connected to a slider. A film holder is fixedly sleeved on the upper part of the outer cylindrical surface of the connecting shaft.

[0012] Preferably, the driving disk is in movable contact with the upper end of the support plate. A plurality of tooth grooves are provided and are distributed in an annular array. The driving gear is in transmission connection with the tooth grooves. The slider is movably installed in the sliding frame. The film holder is in an L-shaped structure. The outer side surface of the film holder is fixedly connected to the inner side surface of the rubber sleeve. The upper end of the limiting screw rod is movably connected to the lower end of the support plate. The lower end of the limiting screw rod extends below the support and is fixedly installed with a rotating plate.

[0013] Preferably, the collar is movably sleeved on the lower part of the outer cylindrical surface of the first connecting pipe, and the rotating sleeve is fixedly sleeved on the second connecting pipe. The upper end and the lower end of the collar are respectively in movable contact with the lower end of the retaining ring and the upper end of the rotating sleeve.

[0014] Preferably, slots are formed at the lower end of the outer sleeve. Two slots and two scale rods are provided. The two scale rods are respectively movably connected to the two slots. Scale lines are provided on the outer cylindrical surface of the scale rod.

[0015] Preferably, the upper end of the guide head is rounded.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. After the rubber membrane is placed in the uterine cavity, the shape of the cavity surrounded by the rubber membrane can be adjusted through the membrane expansion mechanism and the adjustment mechanism, which can better adapt to uterine cavities of different sizes, and is more convenient for adjusting the position of the uterus. Moreover, when adjusting the position of the uterus, since the rubber membrane can fit the inner wall of the uterine cavity, the uterine positioner is not likely to have relative displacement with the uterus. When moving the position of the uterus, it is easier to move the uterus to the ideal position, improving the efficiency and effect of uterine position adjustment.

[0018] 2. During the process of adjusting the shape of the cavity enclosed by the rubber membrane sleeve, the collar and the graduated rod will move downward synchronously. Through the graduation lines set on the graduated rod, the distance of the downward movement of the adjustment mechanism during rotation can be understood in real time. Furthermore, the distance of the downward movement of the pull rod during the downward pull can be known, and thus the deformation of the rubber membrane sleeve can be controlled, and the control accuracy is relatively high. Therefore, the deformation size of the rubber membrane sleeve can be controlled by controlling the number of rotation turns of the rotating sleeve. Moreover, through the threaded connection between the external threaded tube and the outer sleeve tube, thread self-locking can be formed. After the deformation size of the rubber membrane sleeve is adjusted, if the rotating sleeve is no longer rotated, the rubber membrane sleeve will no longer deform, which is convenient for operation and has stronger controllability.

[0019] 3. Through the lifting mechanism, the expansion mechanism, and the deformable rubber sleeve, the size of the cavity enclosed by the rubber sleeve can be changed, which can be suitable for cervices of different sizes and has higher practicability.

[0020] 4. Graduated lines are provided on the upper part of the outer cylindrical surface of the outer sleeve tube, which can determine the sliding distance of the lifting mechanism on the outer sleeve tube and improve the control accuracy of the lifting of the lifting mechanism.

[0021] 5. By providing a guide head with a rounded upper end, it can more easily enter the uterine cavity, reduce the damage to the uterine cavity, and avoid penetrating the uterine cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure of a medical uterine lifter according to the present invention;

[0023] Figure 2 is a schematic diagram of the structure of the lifting mechanism;

[0024] Figure 3 is a schematic diagram of the structure of the expansion mechanism;

[0025] Figure 4 is a schematic diagram of the connection between the membrane expansion mechanism and the adjustment mechanism.

[0026] In the figure: 1. Outer sleeve tube; 2. Lifting mechanism; 3. Expansion mechanism; 4. Rubber sleeve; 5. Rubber membrane sleeve; 6. Membrane expansion mechanism; 7. Adjustment mechanism; 8. Rotating sleeve; 9. Collar; 10. Graduated rod; 21. Slide tube; 22. Support plate; 23. Slide frame; 24. Adjustment rod; 25. Driving gear; 26. Set screw; 27. Support; 28. Limit screw; 29. Rotating plate; 31. Rotating ring; 32. Driving disk; 33. Tooth groove; 34. Push rod; 35. Connecting shaft; 36. Slide block; 37. Membrane frame; 61. Pull rod; 62. Bottom plate; 63. Guide head; 64. Spoke; 71. External threaded tube; 72. First connecting tube; 73. Second connecting tube; 74. Retaining ring; 101. Slot. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To make the technical means, creative features, achieved purposes and effects of the present invention easily understood, the present invention will be further described below in conjunction with specific embodiments.

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0030] Such as Figures 1-4As shown in the figure, a medical uterine manipulator includes a membrane expanding mechanism 6. A rubber membrane sleeve 5 is fixedly sleeved on the upper part of the outer surface of the membrane expanding mechanism 6. An outer sleeve 1 is sleeved on the middle part of the outer surface of the membrane expanding mechanism 6. A regulating mechanism 7 is threadedly connected to the lower part of the inner cylindrical surface of the outer sleeve 1. The lower part of the outer cylindrical surface of the membrane expanding mechanism 6 is movably connected to the lower part of the inner cylindrical surface of the regulating mechanism 7 through a bearing. A rotating sleeve 8 and a collar 9 are sleeved on the lower part of the outer cylindrical surface of the regulating mechanism 7. The collar 9 is movably connected to the upper end surface of the rotating sleeve 8. A scale rod 10 is fixedly installed at the upper end of the collar 9. The scale rod 10 is movably inserted through the lower end of the outer sleeve 1. A lifting mechanism 2 is sleeved on the upper part of the outer cylindrical surface of the outer sleeve 1. An expanding mechanism 3 is sleeved on the upper part of the outer cylindrical surface of the lifting mechanism 2. The expanding mechanism 3 is in transmission connection with the lifting mechanism 2. A rubber sleeve 4 is sleeved on the expanding mechanism 3; The membrane expanding mechanism 6 includes a bottom plate 62. The bottom plate 62 is fixedly installed at the upper end of the outer sleeve 1. A pull rod 61 is movably inserted through the upper end of the bottom plate 62. A guide head 63 is fixedly installed at the upper end of the pull rod 61. The upper end of the guide head 63 is rounded, which can make it easier to enter the uterine cavity and reduce the damage to the uterine cavity. The lower end of the pull rod 61 passes through the inner cavity of the outer sleeve 1 and extends below the outer sleeve 1. A spoke 64 is fixedly installed between the lower end of the guide head 63 and the upper end of the bottom plate 62. A plurality of spokes 64 are provided and are distributed in a circular array. The outer side surface of the spoke 64 is fixedly connected to the inner side surface of the rubber membrane sleeve 5. The spoke 64 can be bent and deformed to facilitate the adjustment of the shape of the rubber membrane sleeve 5; The regulating mechanism 7 includes an external threaded tube 71. The external threaded tube 71 is threadedly connected to the lower part of the inner cylindrical surface of the outer sleeve 1. A first connecting tube 72 is fixedly installed at the lower end of the external threaded tube 71. A second connecting tube 73 is fixedly connected to the lower end of the first connecting tube 72. A retaining ring 74 is fixedly sleeved on the lower part of the outer cylindrical surface of the first connecting tube 72; The lower end of the pull rod 61 sequentially passes through the inner cavities of the external threaded tube 71, the first connecting tube 72 and the second connecting tube 73 and extends below the second connecting tube 73. The lower part of the outer cylindrical surface of the pull rod 61 is movably connected to the inner cylindrical surface of the second connecting tube 73 through a bearing. The collar 9 is movably sleeved on the lower part of the outer cylindrical surface of the first connecting tube 72. The rotating sleeve 8 is fixedly sleeved on the second connecting tube 73. The upper end and the lower end of the collar 9 are respectively in movable contact with the lower end of the retaining ring 74 and the upper end of the rotating sleeve 8. A slot 101 is opened at the lower end of the outer sleeve 1. Two slots 101 and two scale rods 10 are provided. The two scale rods 10 are respectively movably connected to the two slots 101. Scale lines are provided on the outer cylindrical surface of the scale rod 10.

[0031] The implementation principle and beneficial effects of the above solution: When the rubber membrane sleeve 5 is expanded horizontally, the rotating sleeve 8 is rotated. The rotating sleeve 8 drives the adjusting mechanism 7 to rotate, causing the external thread tube 71 to rotate and move downward within the outer sleeve 1, so that the first connecting tube 72, the second connecting tube 73, and the retaining ring 74 move downward synchronously. The pull rod 61 is driven to move downward through the bearing, pulling the guide head 63 downward, shortening the distance between the guide head 63 and the bottom plate 62, compressing the bent spokes 64, thereby reducing the cavity enclosed by the rubber membrane sleeve 5 in the vertical direction and expanding it in the horizontal direction, changing the cavity enclosed by the rubber membrane sleeve 5 from a vertical ellipsoid to a flat ellipsoid; after the rubber membrane sleeve 5 is placed in the uterine cavity, the shape of the cavity enclosed by the rubber membrane sleeve 5 can be adjusted through the membrane expanding mechanism 6 and the adjusting mechanism 7, which can better adapt to uterine cavities of different sizes, making it more convenient to adjust the position of the uterus. Moreover, when adjusting the position of the uterus, since the rubber membrane sleeve 5 can fit the inner wall of the uterine cavity, this uterine positioner is not prone to relative displacement with the uterus. When moving the position of the uterus, it is easier to move the uterus to the ideal position, improving the efficiency and effect of uterine position adjustment; at the same time, during the process of adjusting the shape of the cavity enclosed by the rubber membrane sleeve 5, the collar 9 and the scale rod 10 will move downward synchronously. Through the scale lines provided on the scale rod 10, the distance of the downward rotation of the adjusting mechanism 7 can be understood in real time, and then the distance of the downward pull of the pull rod 61 during the downward pull can be known, and thus the deformation of the rubber membrane sleeve 5 can be controlled. Therefore, the deformation size of the rubber membrane sleeve 5 can be controlled by controlling the number of rotation turns of the rotating sleeve 8. Moreover, due to the threaded connection between the external thread tube 71 and the outer sleeve 1, thread self-locking can be formed. After adjusting the deformation size of the rubber membrane sleeve 5, when the rotating sleeve 8 is no longer rotated, the rubber membrane sleeve 5 will no longer deform, which is convenient for operation and has stronger controllability; during use, the height of the expanding mechanism 3 and the rubber sleeve 4 can also be adjusted by the up and down movement of the lifting mechanism 2 on the outer sleeve 1. The rubber sleeve 4 can be expanded through the expanding mechanism 3, causing the rubber sleeve 4 to expand and deform, increasing the cavity enclosed by the rubber sleeve 4.

[0032] To further illustrate the above solution, the lifting mechanism 2 and the expanding mechanism 3 described in the above solution will be described in detail next.

[0033] The lifting mechanism 2 includes a sliding tube 21. The sliding tube 21 is movably sleeved on the upper part of the outer cylindrical surface of the outer sleeve 1. A support plate 22 is fixedly sleeved on the upper part of the outer cylindrical surface of the sliding tube 21. A sliding frame 23 is fixedly installed at the upper end of the support plate 22. There are multiple sliding frames 23 and they are distributed in a circular array centered on the sliding tube 21. An adjusting rod 24 is movably installed through the lower end of the support plate 22. The upper end of the adjusting rod 24 extends above the support plate 22 and a driving gear 25 is fixedly installed. A set screw 26 is threadedly installed on the outer cylindrical surface of the sliding tube 21. The set screw 26 contacts the outer cylindrical surface of the outer sleeve 1. The sliding tube 21 can be fixed on the outer sleeve 1 through the set screw 26. A support 27 is fixedly sleeved on the lower part of the outer cylindrical surface of the adjusting rod 24. A limit screw 28 is threadedly connected to the upper end of the support 27. The upper end of the limit screw 28 is movably connected to the lower end of the support plate 22. The lower end of the limit screw 28 extends below the support 27 and a rotating plate 29 is fixedly installed. After the upper end surface of the limit screw 28 is in close contact with the lower end surface of the support plate 22, the frictional force at the contact between the limit screw 28 and the support plate 22 can keep the adjusting rod 24 stationary and the driving gear 25 stationary.

[0034] The expansion mechanism 3 includes a rotating ring 31. The rotating ring 31 is movably sleeved on the outer sleeve 1. A driving disk 32 is fixedly installed at the lower end of the rotating ring 31. The driving disk 32 is movably sleeved on the sliding tube 21. Tooth grooves 33 are formed on the circumferential side surface of the driving disk 32. The upper end of the rotating ring 31 is movably connected to a push rod 34 through a shaft. The upper end of the push rod 34 is movably installed through a connecting shaft 35. The lower end of the connecting shaft 35 extends below the push rod 34 and is fixedly connected to a slider 36. A film frame 37 is fixedly sleeved on the upper part of the outer cylindrical surface of the connecting shaft 35.

[0035] The driving disk 32 is in movable contact with the upper end of the support plate 22. There are multiple tooth grooves 33 and they are distributed in a circular array. The driving gear 25 is in transmission connection with the tooth grooves 33, which can play a role in transmission, so that the rotating driving gear 25 can drive the driving disk 32 to rotate. The slider 36 is movably installed in the sliding frame 23, which can make the slider 36 slide along a straight line. The number of the slider 36, the sliding frame 23, the connecting shaft 35 and the film frame 37 is the same and is eight, which can fully support and fix the fixing rubber sleeve 4. At the same time, during the process of expanding the rubber sleeve 4, the deformation of the rubber sleeve 4 can be made more uniform, improving the use effect. The film frame 37 is of an L-shaped structure. The outer side surface of the film frame 37 is fixedly connected to the inner side surface of the rubber sleeve 4. The contact surface between the film frame 37 and the rubber sleeve 4 is a long arc surface. The fixing part between the film frame 37 and the rubber sleeve 4 is in a thin strip shape, which can make the rubber sleeve 4 more likely to undergo tensile deformation while ensuring the fixation between the rubber sleeve 4 and the film frame 37.

[0036] The implementation principles and beneficial effects of the lifting mechanism 2 and the expansion mechanism 3: When adjusting the rubber sleeve 4, by rotating the adjusting rod 24, the driving gear 25 is driven to rotate. The driving gear 25 drives the driving disc 32 to rotate through the tooth groove 33. The rotation of the driving disc 32 pushes out the push rod 34. The push rod 34 pushes the slider 36 to move through the connecting shaft 35, causing the slider 36 to slide outwards within the carriage 23 and pushing the film holder 37 to slide outwards. There are a total of eight film holders 37, and the eight film holders 37 slide outwards simultaneously, causing the rubber sleeve 4 to undergo expansion deformation under the outward thrust, thereby realizing the expansion deformation of the rubber sleeve 4. When the deformation of the rubber sleeve 4 reaches the required value, rotate the rotating plate 29 to make the limit screw 28 rotate and rise on the support 27, so that the upper end surface of the limit screw 28 is in close contact with the lower end surface of the support plate 22. Utilizing the frictional force at the contact between the limit screw 28 and the support plate 22, the adjusting rod 24 is made stationary, thereby making the driving gear 25 stationary and keeping the expansion mechanism 3 in the expanded state, so that the deformation of the rubber sleeve 4 is consistent with the required deformation. Through the lifting mechanism 2, the expansion mechanism 3, and the deformable rubber sleeve 4, the size of the cavity enclosed by the rubber sleeve 4 can be changed to adapt to different usage requirements, and the practicality is high.

[0037] In addition, in order to better enable the lifting mechanism 2 to slide up and down on the outer casing 1, scale lines are provided on the upper part of the outer cylindrical surface of the outer casing 1 to determine the sliding distance of the lifting mechanism 2 on the outer casing 1.

[0038] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A medical uterine manipulator, comprising a membrane expanding mechanism (6), characterized in that: A rubber membrane sleeve (5) is sleeved and fixed on the upper part of the outer surface of the membrane expanding mechanism (6). An outer sleeve (1) is sleeved on the middle part of the outer surface of the membrane expanding mechanism (6). A regulating mechanism (7) is threadedly connected to the lower part of the inner cylindrical surface of the outer sleeve (1). The lower part of the outer cylindrical surface of the membrane expanding mechanism (6) is movably connected to the lower part of the inner cylindrical surface of the regulating mechanism (7) through a bearing. A rotating sleeve (8) and a collar (9) are sleeved on the lower part of the outer cylindrical surface of the regulating mechanism (7). The collar (9) is movably connected to the upper end surface of the rotating sleeve (8). A scale rod (10) is fixedly installed at the upper end of the collar (9). The scale rod (10) is inserted and movably connected to the lower end of the outer sleeve (1). A lifting mechanism (2) is sleeved on the upper part of the outer cylindrical surface of the outer sleeve (1). An expanding mechanism (3) is sleeved on the upper part of the outer cylindrical surface of the lifting mechanism (2). The expanding mechanism (3) is in transmission connection with the lifting mechanism (2). A rubber sleeve (4) is sleeved on the expanding mechanism (3); The lifting mechanism (2) includes a sliding tube (21). The sliding tube (21) is movably sleeved on the upper part of the outer cylindrical surface of the outer sleeve (1). A support plate (22) is sleeved and fixed on the upper part of the outer cylindrical surface of the sliding tube (21). A sliding frame (23) is fixedly installed at the upper end of the support plate (22). A plurality of sliding frames (23) are provided and are distributed in a circular array centered on the sliding tube (21). A regulating rod (24) is inserted and movably installed at the lower end of the support plate (22). The upper end of the regulating rod (24) extends above the support plate (22) and a driving gear (25) is fixedly installed. A fastening knob (26) is threadedly installed on the outer cylindrical surface of the sliding tube (21). The fastening knob (26) contacts the outer cylindrical surface of the outer sleeve (1). A support (27) is sleeved and fixed on the lower part of the outer cylindrical surface of the regulating rod (24). A limiting screw (28) is threadedly connected to the upper end of the support (27); The membrane expanding mechanism (6) includes a bottom plate (62). The bottom plate (62) is fixedly installed at the upper end of the outer sleeve (1). A pull rod (61) is inserted and movably installed at the upper end of the bottom plate (62). A guide head (63) is fixedly installed at the upper end of the pull rod (61). The upper end of the guide head (63) is rounded. The lower end of the pull rod (61) passes through the inner cavity of the outer sleeve (1) and extends below the outer sleeve (1). A spoke (64) is fixedly installed between the lower end of the guide head (63) and the upper end of the bottom plate (62). A plurality of spokes (64) are provided and are distributed in a circular array. The outer side surface of the spoke (64) is fixedly connected to the inner side surface of the rubber membrane sleeve (5).

2. The medical uterine manipulator according to claim 1, wherein: The adjusting mechanism (7) includes an externally threaded tube (71), the externally threaded tube (71) is threadedly connected to the lower part of the inner cylindrical surface of the outer sleeve (1), a first connecting tube (72) is fixedly installed at the lower end of the externally threaded tube (71), a second connecting tube (73) is fixedly connected to the lower end of the first connecting tube (72), a retaining ring (74) is fixedly sleeved on the lower part of the outer cylindrical surface of the first connecting tube (72), the collar (9) is movably sleeved on the lower part of the outer cylindrical surface of the first connecting tube (72), the rotating sleeve (8) is fixedly sleeved on the second connecting tube (73), and the upper end and the lower end of the collar (9) are respectively in movable contact with the lower end of the retaining ring (74) and the upper end of the rotating sleeve (8).

3. The medical uterus lifting device according to claim 2, wherein: The lower end of the pull rod (61) sequentially passes through the inner cavity of the externally threaded tube (71), the inner cavity of the first connecting tube (72), and the inner cavity of the second connecting tube (73) and extends below the second connecting tube (73), and the lower part of the outer cylindrical surface of the pull rod (61) is movably connected to the inner cylindrical surface of the second connecting tube (73) through a bearing.

4. A medical uterine manipulator according to claim 1, characterized in that: The expanding mechanism (3) includes a rotating ring (31), the rotating ring (31) is movably sleeved on the outer sleeve (1), a driving disk (32) is fixedly installed at the lower end of the rotating ring (31), the driving disk (32) is movably sleeved on the sliding tube (21), a tooth groove (33) is formed on the circumferential side surface of the driving disk (32), a push rod (34) is movably connected to the upper end of the rotating ring (31) through a shaft, a connecting shaft (35) is inserted and movably installed at the upper end of the push rod (34), the lower end of the connecting shaft (35) extends below the push rod (34) and is fixedly connected to a slider (36), and a film holder (37) is fixedly sleeved on the upper part of the outer cylindrical surface of the connecting shaft (35).

5. A medical uterine manipulator according to claim 4, characterized in that: The driving disk (32) is in movable contact with the upper end of the support plate (22), a plurality of tooth grooves (33) are provided and are distributed in an annular array, the driving gear (25) is in transmission connection with the tooth grooves (33), the slider (36) is movably installed in the sliding frame (23), the film holder (37) has an L-shaped structure, the outer side surface of the film holder (37) is fixedly connected to the inner side surface of the rubber sleeve (4), the upper end of the limit screw rod (28) is movably connected to the lower end of the support plate (22), and the lower end of the limit screw rod (28) extends below the support (27) and is fixedly installed with a rotating plate (29).

6. The medical uterine manipulator according to claim 1, characterized in that: A slot (101) is opened at the lower end of the outer sleeve (1), there are two slots (101) and two scale rods (10), the two scale rods (10) are respectively movably connected to the two slots (101), and scale lines are provided on the outer cylindrical surface of the scale rod (10).

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