Semi-automatic uterus lifting device for gynecological operation
The semi-automatic uterine lifting device's fixing and adjustment mechanism solves the problem of poor stability of existing uterine lifting devices, achieving stable installation and fine adjustment of the uterine lifting device, thus improving the operational stability and visual clarity of gynecological surgery.
Patent Information
- Application Number
- CN202511380517.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-25
- Publication Date
- 2025-11-21
AI Technical Summary
Existing uterine manipulators require medical staff to hold them for extended periods, resulting in poor stability, easy shaking or displacement, and affecting the surgical field of vision and the continuity of the operation.
The device employs a semi-automatic uterine lifting mechanism, which includes a fixing mechanism, a multi-segment adjustment mechanism, a lifting and fine-tuning mechanism, and an angle adjustment mechanism. It utilizes a stepper motor drive to achieve stable installation, fine adjustment, and semi-automatic fine-tuning of the uterine lifting device. Combined with a damping hinge structure and a conical nut, it achieves stable lifting and angle adjustment of the uterus.
It improves the stability and precision of the uterine manipulator, reduces the burden on medical staff, and provides more reliable operational support and a clearer surgical field of vision.
Smart Images
Figure CN120983126A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of medical auxiliary, in particular to a semi-automatic uterine lifting device for gynecological surgery. BACKGROUND
[0002] In gynecological clinical surgery (such as hysteroscopy surgery, myomectomy, cesarean section exploration and other uterine operations), it is often necessary to use a uterine lifting device to properly lift, fix and adjust the angle of the uterus to obtain a good surgical field and facilitate the operation of the operator. The existing uterine lifting device is usually a simple manual structure, which is usually held by an assistant or fixed by a simple support; The existing uterine lifting device usually needs to be held and operated by medical staff during the operation, and the angle and position of the uterine lifting device need to be adjusted constantly according to the progress of the operation. Since the operator needs to maintain the stability of the uterine lifting device for a long time, the operator is prone to fatigue, which leads to unstable control of the uterine lifting angle, and the uterine lifting device has the risk of shaking or deviating during use, thereby affecting the clarity of the surgical field and the continuity of the operation; Therefore, a semi-automatic uterine lifting device for gynecological surgery is provided. SUMMARY
[0003] Therefore, the present application provides a semi-automatic uterine lifting device for gynecological surgery to solve or alleviate the technical problems in the prior art, at least to provide a beneficial choice.
[0004] The technical scheme of the present application is as follows: a semi-automatic uterine lifting device for gynecological surgery, comprising A fixing mechanism, the fixing mechanism comprises a U-shaped fixing base, the bottom of the U-shaped fixing base is provided with a plurality of threaded holes, and two of the threaded holes are threadedly connected with threaded knob rods; A multi-section adjusting mechanism is fixedly installed on the top of the fixing mechanism, and the multi-section adjusting mechanism comprises a lower hinge base; The top of the U-shaped fixing base is fixedly connected to the bottom of the lower hinge base, the inner side of the lower hinge base is connected with an arm rod one in a damping hinged manner, the other end of the arm rod one is hingedly connected with a middle hinge base, the upper end of the middle hinge base is hingedly connected with an arm rod two, the other end of the arm rod two is hingedly connected with an upper hinge base, one side of the upper hinge base is provided with a fixed rod and a knob screw rod, the fixed rod is threadedly fixed with the upper hinge base through the knob screw rod, and the other end of the fixed rod is fixed on the outer wall of the support rod through a screw; The other end of the multi-section adjusting mechanism is fixedly connected with a lifting fine adjustment mechanism, and the lifting fine adjustment mechanism comprises a support rod; The outer side of the supporting rod is provided with a fixed sliding sleeve, both ends of the supporting rod are fixedly connected with limiting plates, one side of the fixed sliding sleeve is connected with a fixed plate through bolts, the bottom end of the fixed sliding sleeve is internally conical and is connected with a conical nut through thread cooperation, and the fixed plate is fixed to the shell of the stepping motor one through screws; The side of the lifting fine adjustment mechanism is fixedly connected with an angle adjustment mechanism. The angle adjustment mechanism comprises a stepping motor one, an L-shaped plate one, a stepping motor two, an L-shaped plate two and a stepping motor three. The output shaft of the stepping motor one is fixedly connected to the outer side of the L-shaped plate one, the shell of the stepping motor two is fixedly installed on the inner side of the L-shaped plate one, the output shaft of the stepping motor two is fixedly connected to the outer side of the L-shaped plate two, the shell of the stepping motor three is fixedly installed on the inner side of the L-shaped plate two, the output shaft of the stepping motor three is fixedly connected with a fixed seat, the bottom sides of the fixed seat are respectively provided with housings, the inner walls of the housings are provided with clamps, and the inner sides of the two clamps are clamped with a uterine elevator.
[0005] Further preferably, one side of the U-shaped fixed base is provided with a controller for controlling the start-stop and operation of the stepping motor one, the stepping motor two and the stepping motor three.
[0006] The embodiment of the present application has the following advantages due to the adoption of the above technical solutions. The present application can realize stable installation of the uterine elevator on the operating bed through the fixed mechanism, the multi-section adjustment mechanism, the lifting fine adjustment mechanism and the angle adjustment mechanism, complete wide-range spatial positioning through the multi-section hinged structure, realize fine adjustment of the uterine lifting height through the cooperation of the supporting rod, the fixed sliding sleeve and the conical nut, and realize semi-automatic fine adjustment of the uterine elevator in the front-back inclination, left-right swing and axial rotation directions through the angle adjustment mechanism driven by the three stepping motors, so as to solve the problems of long-time manual holding, poor stability and non-fine adjustment of the existing uterine elevator, reduce the burden of medical staff, improve the stability and accuracy of the uterine lifting process, and provide more reliable operation support and clear operation view in gynecological surgery.
[0007] The above summary is only for the purpose of the description and is not intended to limit in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features will be readily apparent to those skilled in the art by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS
[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative effort.
[0009] Figure 1 is a main structure diagram of the present application; Figure 2 is a structure diagram of the lifting fine adjustment mechanism and the angle adjustment mechanism of the present application; Figure 3 is a structure diagram of the present application Figure 3 is a structure diagram from another perspective; Figure 4 is a structure diagram of the clamp and the uterine manipulator of the present application; Figure 5 is a structure diagram of the U-shaped fixed base of the present application.
[0010] The accompanying drawings are as follows: 10, fixing mechanism; 11, U-shaped fixed base; 12, threaded hole; 13, threaded knob rod; 14, controller; 20, multi-section adjustment mechanism; 21, lower hinge base; 22, arm rod one; 23, middle hinge base; 24, arm rod two; 25, upper hinge base; 26, fixed rod; 27, knob screw rod; 30, lifting fine adjustment mechanism; 31, support rod; 32, taper nut; 33, fixed sliding sleeve; 34, fixed plate; 35, limiting plate; 40, angle adjustment mechanism; 41, step motor one; 42, L-shaped plate one; 43, step motor two; 44, L-shaped plate two; 45, step motor three; 46, fixed seat; 51, shell; 52, clamp; 60, uterine manipulator. DETAILED DESCRIPTION
[0011] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the accompanying drawings and description are considered to be exemplary in nature rather than limiting.
[0012] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.
[0013] As Figures 1-5 shown, the embodiment of the present application provides a semi-automatic uterine lifting device for gynecological surgery, which comprises a fixing mechanism 10, a multi-section adjustment mechanism 20, a lifting fine adjustment mechanism 30 and an angle adjustment mechanism 40. The angle adjustment mechanism 40 is connected with a shell 51 and a clamp 52 through a fixed seat 46 at the end, so as to clamp a uterine manipulator 60; The multi-section adjusting mechanism 20 realizes the rough positioning outside the surgical field and the spatial positioning, the lifting fine adjusting mechanism 30 realizes the height fine adjustment, the angle adjusting mechanism 40 realizes the semi-automatic angle fine adjustment and the pose keeping in the three degrees of freedom of the front and rear inclination adjustment, the left and right swing adjustment and the axial rotation adjustment through the stepper motor one 41, the stepper motor two 43 and the stepper motor three 45, and the connection and cooperation of the functional units are as follows; The fixing mechanism 10 comprises a U-shaped fixing base 11 which is preferably made of 304 or 316L stainless steel and is integrally bent and formed, and the inner side of the U-shaped fixing base 11 is provided with a notch matched with the operating bed. The bottom of the U-shaped fixing base 11 is processed with a plurality of threaded holes 12, and two threaded holes 12 are threadedly connected with threaded knob rods 13. In use, the U-shaped fixing base 11 is straddled on the operating bed guide rail or the edge of the bed plate, and the threaded knob rods 13 are tightened to press and clamp, thereby completing the reference fixing of the device. In order to avoid leaving marks on the surface of the operating bed, soft gaskets can be arranged at the ends of the threaded knob rods 13, and anti-loosening washers can be arranged between the threaded knob rods 13 and the U-shaped fixing base 11 to improve the vibration resistance. The multi-section adjusting mechanism 20 is fixedly installed on the top of the U-shaped fixing base 11 and comprises a lower hinge base 21, an arm rod one 22, a middle hinge base 23, an arm rod two 24 and an upper hinge base 25 from bottom to top, and each hinge point is a damping hinge. The lower hinge base 21 is fixedly connected to the top of the U-shaped fixing base 11 as the bottom reference for rotation and elevation angle adjustment. One end of the arm rod one 22 is connected to the lower hinge base 21 in a damping hinge manner, and the other end is connected to the middle hinge base 23 in a damping hinge manner. One end of the arm rod two 24 is connected to the upper end of the middle hinge base 23 in a damping hinge manner, and the other end is connected to the upper hinge base 25 in a damping hinge manner. Each damping hinge is formed by an adjustable pre-tightening friction plate or a wave spring assembly to provide stable damping, so that the arm rod can be kept at any angle without rebounding after manual adjustment, and the surgeon can complete the rough positioning with one hand. The upper hinge base 25 is provided with a fixed rod 26 and a knob screw 27 on the side, the fixed rod 26 is threadedly fixed with the upper hinge base 25 through the knob screw 27, and the other end of the fixed rod 26 is reliably connected with a support rod 31 of the lifting fine adjusting mechanism 30 through a screw, thereby transmitting the spatial pose of the multi-section adjusting mechanism 20 to the lifting fine adjusting mechanism 30. Through the multi-section adjusting mechanism 20, the surgeon can quickly guide the uterine manipulator 60 to the appropriate position outside the vaginal entrance to realize the rough adjustment and stable support in the horizontal and vertical directions. The lifting fine adjusting mechanism 30 comprises a support rod 31, a fixed sleeve 33, a taper nut 32, a fixed plate 34 and a limiting plate 35. The support rod 31 is preferably a stainless steel round rod, and the two ends of the support rod 31 are respectively fixed with limit plates 35 for limiting the stroke of the fixed sleeve 33 in the axial direction of the support rod, preventing accidental slipping; The fixed sleeve 33 is sleeved on the outside of the support rod 31 in a sliding fit manner, and the bottom end of the fixed sleeve 33 is processed into an inner tapered surface. The inner tapered surface and the outer tapered surface of the tapered nut 32 are connected through thread cooperation. When the tapered nut 32 is tightened, the inner and outer tapered surfaces generate an axial clamping force, so that the fixed sleeve 33 generates a radial clamping force on the support rod 31, thereby achieving self-locking fixation at any height position. When the tapered nut 32 is loosened, the fixed sleeve 33 can freely slide along the support rod 31 to make fine height adjustment; The fixed plate 34 is connected to one side of the fixed sleeve 33 through screws for reliable fixation with the machine shell of the stepping motor 41 in the angle adjustment mechanism 40; The effective adjustable stroke of the fixed sleeve 33 on the support rod 31 is determined according to the distance between the limit plates 35; The above structure enables the operator to achieve fine height setting and locking in the lifting direction through a small amount of rotation of the tapered nut 32 after the completion of coarse positioning, ensuring that the height relationship of the working end of the uterus lifting device 60 to the uterine fundus is controllable and stable; The angle adjustment mechanism 40 is fixedly connected to the side of the lifting and fine adjustment mechanism 30, and includes a stepping motor 41, an L-shaped plate 42, a stepping motor 43, an L-shaped plate 44, a stepping motor 45, and a fixed seat 46. The three stepping motors are arranged in a series connection structure and realize front-back inclination adjustment, left-right swing adjustment, and axial rotation adjustment in sequence: The stepping motor 41 is used for front-back inclination adjustment. The machine shell of the stepping motor 41 is fixed to the fixed sleeve 33 through the fixed plate 34, and the output shaft is fixedly connected to the outside of the L-shaped plate 42 to drive the L-shaped plate 42 to adjust the pitch angle relative to the machine shell about a horizontal axis; The stepping motor 43 is used for left-right swing adjustment. The machine shell of the stepping motor 43 is fixed to the inside of the L-shaped plate 42, and the output shaft is fixedly connected to the outside of the L-shaped plate 44 to drive the L-shaped plate 44 to adjust the yaw angle relative to the L-shaped plate 42 about a vertical axis; The stepping motor 45 is used for axial rotation adjustment. The machine shell of the stepping motor 45 is fixed to the inside of the L-shaped plate 44, and the output shaft is fixedly connected to the fixed seat 46 to drive the fixed seat 46 to adjust the roll angle about an axis; The fixed seat 46 is installed on the bottom of the two sides of the shell 51, and the inner wall of the shell 51 is installed with a clamp 52. The two clamps 52 together form a radial clamping of the handle of the uterus lifting device 60. A soft gasket can be provided on the inside of the clamp 52 to increase friction and prevent damage to the surface of the instrument. The shell 51 is quickly assembled and disassembled and the force is adjusted through a knob or an internal hexagonal fastening method; The stepper motor is preferably a two-phase hybrid stepper motor with 1.8° / step, and the subdivision driving is used to achieve an angle resolution of 0.225° / step or smaller, and the available angle range of the single shaft is designed as ±20° to ±45° according to the structure limiting, and the controller 14 can independently start, stop, set the speed and control the step number of the three shafts, so as to realize the semi-automatic angle alignment, micro-step correction and position keeping; The uterine manipulator 60 is used as a commonly used clinical instrument, the handle is arranged between the two clamps 52, and stable clamping is realized after being fastened through the clamps 52; in order to improve the adaptability, the clamps 52 can provide different diameter gears or realize fine adjustment of the clamping range through adjustable eccentric blocks, and the clamps 52 and the gasket can be combined with 316L+medical silica gel to meet the corrosion resistance and sensory control requirements; In the gynecological surgery process, the uterine manipulator mainly bears the functions of supporting, lifting and angle correction of the uterus, so as to provide a clear surgical field and a convenient operation channel for the operator; the use process and working principle of the embodiment are as follows: After the device is installed on the operating bed guide rail, the operator first realizes large-range movement of the end assembly by adjusting the multi-section adjusting mechanism 20; the damping hinged structure between the arm rod one 22, the arm rod two 24 and the middle hinge base 23 enables the multi-section adjusting mechanism 20 to smoothly swing when being pushed, and to be kept at the current position by relying on damping after the operator releases the hand, and rebound or free droop is not generated; through the process, the end uterine manipulator 60 can be quickly guided to the appropriate position outside the vaginal entrance, providing a preliminary position basis for subsequent fine adjustment; After the coarse positioning is completed, the operator finely adjusts the height of the uterine manipulator 60 according to the position of the uterus of the patient and the surgical requirements; at this time, the taper nut 32 is loosened, the fixed sleeve 33 can be axially slid on the outer wall of the support rod 31, so as to drive the angle adjusting mechanism 40 and the uterine manipulator 60 to rise or fall as a whole; after the operator moves the fixed sleeve 33 to the ideal height, the taper nut 32 is tightened again, so that the clamping force is generated between the inner and outer tapered surfaces of the fixed sleeve 33 and the support rod 31, reliable locking is realized; the limiting plate 35 is installed at both ends of the support rod 31, effectively preventing the fixed sleeve 33 from sliding out of the support rod 31 due to excessive operation, and ensuring the safety and controllability in the height adjustment process; After the height is determined, the operator further finely operates the angle adjusting mechanism 40 through the controller 14; the angle adjusting mechanism 40 is driven by three stepper motors, and free adjustment of the tip of the uterine manipulator 60 in three directions is realized: The stepper motor one 41 drives the uterine manipulator 60 to perform forward and backward inclination adjustment, so as to adapt to different forward or backward inclination angles of the uterus; The stepper motor two 43 drives the uterine manipulator 60 to perform left and right swing adjustment, and compensates for the left and right deviation of the position of the uterus of the patient; The three stepper motors drive the uterus holder 60 to rotate axially to correct the direction of the holder tip to be consistent with the uterine cavity; The three stepper motors can be set with micro-step angle and running speed by the controller 14, and operated in a semi-automatic mode of "short stroke - pause observation - correction again". After each input instruction from the operator, the uterus holder 60 performs the corresponding angle correction, and then remains in the new position until the operator confirms and adjusts again. When the angle adjustment is completed and no new instruction is issued, the three stepper motors remain in the excited state to maintain the current angle. At the same time, the self-holding feature of the damping hinge and the conical clamping structure of the lifting fine adjustment mechanism 30 work together to ensure that the uterus holder 60 can be stably maintained at the target position during the entire operation, avoiding displacement due to slight changes in the patient's position or interference from surgical instruments. After the operation, the operator gradually removes the device in reverse order. First, turn off the output of the three stepper motors on the controller 14 to make the angle adjustment mechanism 40 enter the inactive state. Then loosen the clamp 52 and easily remove the uterus holder 60. Loosen the conical nut 32 to make the fixed sleeve 33 return to the middle position of the support rod 31. Fold the arm rod one 22 and the arm rod two 24 back to recover to the compact state. Finally, loosen the threaded knob rod 13 to release the clamping of the U-shaped fixed base 11 and the operating bed, remove the whole machine, and complete the removal and storage.
[0014] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can easily think of various changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A semi-automatic uterine manipulator for gynecological surgery, characterized in that: The utility model relates to a fixing mechanism (10), the top of fixing mechanism (10) is fixedly installed with multistage adjusting mechanism (20), the other end of multistage adjusting mechanism (20) is fixedly connected with lifting fine adjustment mechanism (30), the side of lifting fine adjustment mechanism (30) is fixedly connected with angle adjusting mechanism (40). The angle adjusting mechanism (40) comprises a step motor one (41), an L-shaped plate one (42), a step motor two (43), an L-shaped plate two (44) and a step motor three (45). The output shaft of the step motor one (41) is fixedly connected to the outside of the L-shaped plate one (42), the shell of the step motor two (43) is fixedly installed on the inside of the L-shaped plate one (42), the output shaft of the step motor two (43) is fixedly connected to the outside of the L-shaped plate two (44), the shell of the step motor three (45) is fixedly installed on the inside of the L-shaped plate two (44), the output shaft of the step motor three (45) is fixedly connected with a fixing seat (46), the bottom of the fixing seat (46) is provided with two housings (51), the inner wall of the housing (51) is provided with a clamp (52), and the inside of the two clamps (52) is clamped with a uterine manipulator (60). The lifting fine adjustment mechanism (30) comprises a support rod (31).
2. The semi-automatic uterine manipulation device for gynecological surgery according to claim 1, characterized in that: The outside of the support rod (31) is slidably sleeved with a fixed sliding sleeve (33), one side of the fixed sliding sleeve (33) is connected with a fixed plate (34) through bolts, the bottom end of the fixed sliding sleeve (33) is internally conical, and is connected with a conical nut (32) through thread cooperation, and the fixed plate (34) is fixed to the shell of the step motor one (41) through screws. The multistage adjusting mechanism (20) comprises a lower hinge base (21).
3. The semi-automatic uterine manipulator for gynecological surgery according to claim 2, characterized in that: The inside of the lower hinge base (21) is connected with an arm rod one (22) in a damping hinged mode, the other end of the arm rod one (22) is hingedly connected with a middle hinge base (23) in a damping mode, the upper end of the middle hinge base (23) is hingedly connected with an arm rod two (24) in a damping mode, and the other end of the arm rod two (24) is hingedly connected with an upper hinge base (25) in a damping mode. One side of the upper hinge base (25) is provided with a fixed rod (26) and a knob screw rod (27), the fixed rod (26) is fixedly screwed with the upper hinge base (25) through the knob screw rod (27).
4. The semi-automatic uterine manipulation device for gynecological surgery according to claim 3, characterized in that: The other end of the fixed rod (26) is fixed to the outer wall of the support rod (31) through screws.
5. The semi-automatic uterine manipulator for gynecological surgery according to claim 4, characterized in that: The fixing mechanism (10) comprises a U-shaped fixing base (11), the bottom of the U-shaped fixing base (11) is provided with a plurality of threaded holes (12), two threaded holes (12) are threadedly connected with threaded knob rods (13).
6. The semi-automatic uterine manipulation device for gynecological surgery according to claim 5, characterized in that: The top of the U-shaped fixing base (11) is fixedly connected to the bottom of the lower hinge base (21).
7. A semi-automatic uterine manipulator for gynecological surgery according to claim 6, characterized in that: One side of the U-shaped fixing base (11) is provided with a controller (14), and the controller (14) is used for controlling the start-stop and operation of the step motor one (41), the step motor two (43) and the step motor three (45).
8. The semi-automatic uterine manipulation device for gynecological surgery according to claim 1, characterized in that: Both ends of the support rod (31) are fixedly connected with limit plates (35).
9. The semi-automatic uterine manipulation device for gynecological surgery according to claim 2, characterized in that: