Minimally invasive gynecological surgical instrument with real-time image guidance and variable-angle operating head

Abstract

The invention provides a minimally invasive gynecological surgical instrument with real-time image guidance and a variable-angle operating head, and belongs to the technical field of medical instruments. Comprising an operating handle, a movable hole is formed in the operating handle, and a movable inner pipe controlled by a telescopic mechanism to move is installed in the movable hole in a sliding mode; the clamping assembly is installed on the movable inner pipe through the connecting assembly, the clamping assembly is used for clamping an affected part and cutting the affected part in cooperation with the cutting assembly, according to the scheme, the clamping assembly and the cutting assembly are designed together to achieve linkage control, precise cutting can be integrally achieved after clamping, and the cutting efficiency is improved. The posture of the instrument does not need to be additionally adjusted, so that the operation steps are reduced, and the occurrence of cutting errors possibly caused by focus displacement in the adjusting process is also avoided.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to minimally invasive gynecological surgical instruments with real-time image guidance and variable-angle operating heads. Background Technology

[0002] In the field of modern medicine, minimally invasive surgery has become the mainstream development direction in the diagnosis and treatment of gynecological diseases due to its significant advantages such as small trauma, fast postoperative recovery, and low incidence of complications. It is widely used in the treatment of common diseases such as uterine fibroids, ovarian cysts, and endometrial polyps. This type of surgery relies on specialized minimally invasive instruments, which are inserted into the body through natural cavities or tiny puncture holes. The core operation, such as clamping and cutting of diseased tissue, is completed within a limited operating space. Its core design concept is to achieve precise surgical intervention while minimizing damage to the patient's normal tissues, which is in line with the core concept of modern medicine of "precision treatment and minimally invasive rehabilitation".

[0003] The clamping and cutting mechanisms of existing instruments are mostly controlled independently, lacking an integrated linkage design. After clamping and fixing, the instrument posture needs to be adjusted separately before the cutting operation can be performed. This not only increases the number of surgical steps, but may also cause cutting errors due to lesion displacement during the adjustment process, making it difficult to meet the actual needs of complex minimally invasive surgery in clinical practice. Summary of the Invention

[0004] This invention provides a minimally invasive gynecological surgical instrument with real-time image guidance and a variable-angle operating head. It addresses the technical problem that existing instruments often have independently controlled clamping and cutting mechanisms, lacking an integrated linkage design. After clamping and fixing, the instrument posture needs to be adjusted before cutting can be performed, which not only increases the number of surgical steps but may also cause cutting errors due to lesion displacement during the adjustment process, making it difficult to meet the actual needs of complex minimally invasive surgery in clinical practice.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A minimally invasive gynecological surgical instrument with real-time image guidance and a variable-angle operating head includes an operating handle with a movable hole. A movable inner tube, whose displacement is controlled by a telescopic mechanism, is slidably installed in the movable hole. The telescopic mechanism is located inside the operating handle.

[0007] A clamping assembly is mounted on one end of a movable inner tube via a connecting assembly. The clamping assembly is equipped with a cutting assembly. The clamping assembly is used to clamp the affected area, and the cutting assembly cuts the affected area.

[0008] Optionally, the telescopic mechanism includes an adjustment cavity formed in the operating handle, the adjustment cavity being provided with a threaded groove, a first motor being fixedly installed on the movable inner tube, and a threaded adjustment block being fixedly installed on the output shaft of the first motor, the threaded adjustment block being threadedly connected to the threaded groove.

[0009] Optionally, the clamping assembly includes a mounting cover, an annular first clamping piece fixedly mounted on one end of the mounting cover, a movable block slidably mounted inside the mounting cover, a second clamping piece cooperating with the first clamping piece fixedly mounted on one end of the movable block, a positioning block fixedly mounted inside the mounting cover, and a transmission rod rotatably mounted on the other end of the movable block. The transmission rod is threadedly connected to the positioning block, and the transmission rod has toothed grooves.

[0010] Optionally, the clamping assembly further includes a second motor fixedly mounted on the positioning block, and a toothed block that meshes with the toothed groove is fixedly mounted on the output shaft of the second motor.

[0011] Optionally, the connecting assembly includes a fixing ring fixedly installed on the inner wall of the movable inner tube, a movable ball movably installed inside the fixing ring, and a mounting cover fixedly installed on the movable ball.

[0012] Optionally, the operating handle has a mounting cavity, a slider is slidably mounted in the mounting cavity, a pair of protrusions are fixedly mounted on the top wall of the mounting cavity, a spring is fixedly mounted on each of the protrusions, the end of the spring away from the protrusion abuts against the slider, an extension rod is fixedly mounted on the movable ball, a fixing rod is fixedly mounted on the slider, an adjusting ring is fixedly mounted on the fixing rod, the adjusting ring is sleeved on the extension rod and supports the movement of the movable ball in cooperation with the extension rod, and a rubber pad is fixedly mounted on the inner wall of the adjusting ring.

[0013] Optionally, a locking bolt is threaded onto the operating handle, one end of which is located inside the mounting cavity and abuts against the slider.

[0014] Optionally, the upper and lower ends of the second clamping piece are provided with sliding grooves, and the upper and lower ends of the mounting block are respectively slidably connected in the two sliding grooves. An annular cutting block is fixedly installed on the mounting block, and a pull rope is fixedly installed on the mounting block. The pull rope passes through the second clamping piece, the movable block, the transmission rod, the movable ball, and the extension rod and extends to the outside of the operating handle.

[0015] Optionally, a camera is fixedly installed on one side of the second clamping piece for observing the inside of the patient's body.

[0016] Optionally, an illumination lamp bead is fixedly installed on the mounting block to illuminate the field of vision of the affected area.

[0017] The beneficial effects of the above-described technical solution of the present invention are as follows:

[0018] In the above scheme, the adjustment cavity inside the operating handle provides a closed and stable space for the installation and operation of the telescopic mechanism. The threaded groove inside the adjustment cavity and the threaded adjustment block form a threaded engagement structure. When it is necessary to adjust the telescopic position of the movable inner tube, the first motor is started. The output shaft of the first motor drives the threaded adjustment block to rotate. Since the threaded adjustment block is threadedly connected to the threaded groove of the adjustment cavity, the rotational motion is converted into linear motion along the axial direction of the threaded groove, thereby driving the movable inner tube fixed on the threaded adjustment block to slide smoothly along the movable hole. The threaded transmission has the characteristics of high transmission accuracy and good self-locking, which can realize precise control of the displacement of the movable inner tube, ensuring that the clamping component can accurately reach the target affected area and avoid affecting the surgical effect due to displacement deviation. At the same time, the self-locking property allows the movable inner tube to stay stably at any telescopic position without the need for an additional locking structure to maintain a fixed position, improving the convenience and stability of operation during the operation.

[0019] The first clamping piece is fixed to the mounting cover as a fixed clamping component. The sliding engagement between the movable block and the mounting cover allows the second clamping piece to move closer to or further away from the first clamping piece. The positioning block provides mounting support and a threaded engagement base for the transmission rod. The transmission rod is rotatably connected to the movable block and threadedly connected to the positioning block. When the transmission rod rotates, the axial driving force generated by the threaded engagement drives the movable block to slide along the inside of the mounting cover. The first and second clamping pieces can form a clamping surface with a higher degree of fit with the affected tissue, avoiding excessive local pressure that could cause tissue damage. This facilitates clamping of affected areas in different locations. The toothed grooves on the transmission rod provide an interface for power input. The rotational power is transmitted through the toothed grooves, making the rotational movement of the transmission rod smoother and the power transmission more efficient. This enables precise opening and closing between the second and first clamping pieces, ensuring moderate clamping force and reliable fixation of the affected tissue, laying a stable foundation for subsequent cutting operations.

[0020] The clamping and cutting components of this solution are designed together for coordinated control. After clamping, precise cutting can be achieved in one integrated manner without the need for additional adjustment of the instrument posture. This not only reduces surgical steps but also avoids cutting errors that may occur due to lesion displacement during the adjustment process. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the minimally invasive gynecological surgical instrument with real-time image guidance and a variable-angle operating head of the present invention.

[0022] Figure 2 This is a cross-sectional view of the operating handle of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the clamping assembly of the present invention;

[0024] Figure 4 This is a cross-sectional view of the cutting component of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the annular cutting block of the present invention;

[0026] Figure 6 This is a schematic diagram of the slider of the present invention;

[0027] Figure 7 This is a cross-sectional view of the mounting cavity of the present invention;

[0028] Figure 8 This is a cross-sectional three-dimensional structural diagram of the cutting component of the present invention.

[0029] [Figure Labels]

[0030] 10. Operating handle; 11. Movable hole; 12. Movable inner tube; 13. Illumination lamp; 14. Camera;

[0031] 20. Telescopic mechanism; 21. Adjustment chamber; 22. First motor; 23. Threaded adjustment block;

[0032] 30. Clamping assembly; 31. Mounting cover; 32. First clamping piece; 33. Movable block; 34. Second clamping piece; 35. Transmission rod; 36. Positioning block; 37. Tooth groove; 38. Second motor; 39. Tooth block;

[0033] 40. Connecting assembly; 41. Retaining ring; 42. Moving ball; 43. Mounting cavity; 44. Slider; 45. Fixing rod; 46. Adjusting ring; 47. Rubber pad; 48. Protrusion; 49. Spring; 410. Locking bolt; 411. Extension rod;

[0034] 50. Cutting component; 51. Slide; 52. Mounting block; 53. Circular cutting block; 54. Pull rope. Detailed Implementation

[0035] To make the technical problems, technical solutions and advantages of the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0036] like Figures 1 to 7 As shown, an embodiment of the present invention provides a minimally invasive gynecological surgical instrument with real-time image guidance and a variable angle operating head, including an operating handle 10, on which an active hole 11 is provided, and an active inner tube 12 whose displacement is controlled by a telescopic mechanism 20 is slidably installed in the active hole 11.

[0037] The clamping assembly 30 is mounted on the movable inner tube 12 via the connecting assembly 40. The clamping assembly 30 is used to clamp the affected area and cooperate with the cutting assembly 50 to cut the affected area.

[0038] The core working principle of this minimally invasive gynecological surgical instrument is that the operating handle 10 provides grip support, and the movable hole 11 provides a stable sliding guide channel for the movable inner tube 12. The movable inner tube 12 can achieve axial displacement under the drive of the telescopic mechanism 20, thereby driving the clamping component 30 connected to it to move closer to or away from the affected area, so as to meet the adjustment needs of the operating distance during the operation.

[0039] The clamping component 30, as a functional component that directly acts on the affected area, has the core function of first stably clamping and fixing the target tissue to prevent the tissue from shifting during subsequent operations, and then working with the cutting component 50 to precisely cut the tissue.

[0040] No additional auxiliary instruments are needed to fix the tissue, reducing the number of surgical instruments used and simplifying the surgical procedure. At the same time, clamping and fixing ensures the stability of the cutting process, reducing surgical errors caused by tissue displacement and improving the precision and safety of minimally invasive surgery.

[0041] like Figures 1 to 3 As shown, the telescopic mechanism 20 includes an adjustment cavity 21 opened in the operating handle 10, the adjustment cavity 21 is provided with a threaded groove, a first motor 22 is fixedly installed on the movable inner tube 12, and a threaded adjustment block 23 is fixedly installed on the output shaft of the first motor 22, the threaded adjustment block 23 is threadedly connected to the threaded groove.

[0042] The adjustment cavity 21 inside the operating handle 10 provides a closed and stable space for the installation and operation of the telescopic mechanism 20. The threaded groove inside the adjustment cavity 21 and the threaded adjustment block 23 form a threaded engagement structure. When it is necessary to adjust the telescopic position of the movable inner tube 12, the first motor 22 is started. The output shaft of the first motor 22 drives the threaded adjustment block 23 to rotate. Since the threaded adjustment block 23 is threadedly connected to the threaded groove of the adjustment cavity 21, the rotational motion is converted into linear motion along the axial direction of the threaded groove, thereby driving the movable inner tube 12 fixed on the threaded adjustment block 23 to slide smoothly along the movable hole 11. The threaded transmission has the characteristics of high transmission accuracy and good self-locking, which can realize the precise control of the displacement of the movable inner tube 12, ensuring that the clamping assembly 30 can accurately reach the target affected area and avoid the impact of displacement deviation on the surgical effect. At the same time, the self-locking property allows the movable inner tube 12 to stay stably at any telescopic position without the need for an additional locking structure, which can maintain the fixed position and improve the operation convenience and stability during the operation.

[0043] like Figures 1 to 4As shown, the clamping assembly 30 includes a mounting cover 31, on which a first clamping piece 32 is fixedly mounted. A movable block 33 is slidably mounted inside the mounting cover 31. A second clamping piece 34, which mates with the first clamping piece 32, is fixedly mounted at the end of the movable block 33. The first clamping piece 32 and the second clamping piece 34 are positioned opposite and correspond to each other. Both the first clamping piece 32 and the second clamping piece 34 have mutually matching grooves, and the grooves on the first clamping piece 32 and the second clamping piece 34 are opposite and symmetrical. The first clamping piece 32 is arranged in a ring around the movable block 33 and is slidably connected to the movable block 33. The second clamping piece 34 is circular, and the centers of the first clamping piece 32 and the second clamping piece 34 are on the same straight line. A positioning block 36 is fixedly mounted inside the mounting cover 31. A transmission rod 35 is rotatably mounted on the movable block 33. The transmission rod 35 is threadedly connected to the positioning block 36, and a toothed groove 37 is formed on the transmission rod 35.

[0044] The first clamping piece 32 is fixed to the mounting cover 31 as a fixed clamping component. The sliding engagement between the movable block 33 and the mounting cover 31 allows the second clamping piece 34 to move closer to or further away from the first clamping piece 32. The positioning block 36 provides mounting support and a threaded engagement base for the transmission rod 35. The transmission rod 35 is rotatably connected to the movable block 33 and threadedly connected to the positioning block 36. When the transmission rod 35 rotates, the axial driving force generated by the threaded engagement drives the movable block 33 to slide along the inside of the mounting cover 31. The first clamping piece 32 and the second clamping piece 34... The shape allows for a more closely fitted clamping surface to the affected tissue, preventing excessive local pressure that could damage the tissue. The circular design also facilitates clamping of affected areas in different locations. The toothed groove 37 on the transmission rod 35 provides an interface for power input, transmitting rotational power through the groove 37. This makes the rotation of the transmission rod 35 smoother and the power transmission more efficient, thereby achieving precise opening and closing between the second clamping plate 34 and the first clamping plate 32. This ensures moderate clamping force and reliable fixation of the affected tissue, laying a stable foundation for subsequent cutting operations.

[0045] The clamping assembly 30 also includes a second motor 38 fixedly mounted on the positioning block 36, and a toothed block 39 that meshes with the toothed groove 37 is fixedly mounted on the output shaft of the second motor 38.

[0046] This structure achieves precise transmission of clamping power through motor drive and gear meshing. When the clamping component 30 needs to be driven, the second motor 38 starts, and its output shaft drives the toothed block 39 to rotate. The toothed block 39 meshes with the tooth groove 37 on the transmission rod 35, transmitting the rotational power of the motor to the transmission rod 35 through tooth surface contact, causing the transmission rod 35 to rotate. By reversing the motor, the transmission rod 35 can rotate in both directions, thereby controlling the movable block 33 to drive the second clamping plate 34 to open and close. This avoids the problem of uneven force in manual drive, enabling precise control of clamping force. At the same time, the motor drive has a higher degree of automation, reducing the operational intensity of medical staff, improving the consistency and stability of clamping actions, and reducing human error.

[0047] like Figure 3 As shown, the connecting assembly 40 includes a fixing ring 41 fixedly installed on the inner wall of the movable inner tube 12, a movable ball 42 movably installed inside the fixing ring 41, and a mounting cover 31 fixedly installed on the movable ball 42.

[0048] The core function of the connecting component 40 is to adjust the angle of the clamping component 30. Its operation is based on the rotational characteristics of the movable ball 42. The fixing ring 41 is fixed on the movable inner tube 12, providing rotational support and limiting structure for the movable ball 42. The movable ball 42 can rotate within the fixing ring 41, while the mounting cover 31 is fixed on the movable ball 42. This allows the mounting cover 31 and its clamping components to adjust their angles as the movable ball 42 rotates. The orientation of the clamping component 30 can be flexibly adjusted according to the location and angle of the affected area, so that the clamping plate and the cutting component 50 can fit the affected tissue at the optimal angle. This is especially suitable for scenarios where the affected area is hidden and the angle is complex in gynecological minimally invasive surgery. It effectively expands the coverage of the surgical operation, improves the flexibility and adaptability of the surgery, and avoids surgical blind spots caused by instrument angle limitations.

[0049] like Figure 3 , Figure 6 and Figure 7 As shown, the operating handle 10 has an installation cavity 43, in which a slider 44 is slidably installed. A pair of protrusions 48 are fixedly installed in the installation cavity 43, and a spring 49 is fixedly installed on each of the protrusions 48. The end of the spring 49 away from the protrusion 48 abuts against the slider 44. A horizontal extension rod 411 is fixedly installed on the movable ball 42. A vertically set fixing rod 45 is fixedly installed on the slider 44. An adjusting ring 46 is fixedly installed on the fixing rod 45. The adjusting ring 46 cooperates with the extension rod 411 to drive the movable ball 42 to rotate. A rubber pad 47 is fixedly installed on the inner wall of the adjusting ring 46.

[0050] Angle adjustment is controlled through mechanical linkage and elastic reset structure. The mounting cavity 43 provides mounting space and motion guidance for components such as the slider 44, spring 49, and protrusions 48. Springs 49 on a pair of protrusions 48 abut against both sides of the slider 44. The two protrusions 48 are symmetrical with respect to the axis of the slider 44 and are located on both sides of the slider 44 surface, forming a symmetrical elastic support structure that provides reset force to the slider 44. The extension rod 411 on the movable ball 42 is inserted into the adjusting ring 46. The rubber pad 47 inside the adjusting ring 46 increases the friction between the extension rod 411 and the adjustment ring 46, ensuring the stability of their engagement. When the angle of the clamping assembly 30 needs to be adjusted, the slider 44 is pushed to slide along the mounting cavity 43. The slider 44 is fixed... The lever 45 drives the adjusting ring 46 to move. The adjusting ring 46 drives the extension rod 411 to swing through the friction between the extension rod 411 and the adjusting ring 46, which in turn drives the movable ball 42 to rotate within the fixed ring 41, thereby realizing the angle adjustment of the clamping component 30. The elasticity of the spring 49 allows the slider 44 to automatically reset when there is no external force, which facilitates the reset operation after angle adjustment. The rubber pad 47 not only enhances the friction and prevents slippage between the extension rod 411 and the adjusting ring 46 during the adjustment process, but also plays a buffering role, reducing the impact force during angle adjustment, protecting the components, and making the angle adjustment action more stable and precise. This allows medical staff to easily control the angle change of the clamping component 30 and improves the convenience of surgical operations.

[0051] like Figure 7 As shown, a locking bolt 410 is threaded onto the operating handle 10. One end of the locking bolt 410 is located inside the mounting cavity 43 and abuts against the slider 44. The bottom of the mounting cavity 43 is connected to the outside, so the bottom end of the slider 44, which is slidably mounted in the mounting cavity 43, is exposed outside the operating handle 10. The slider 44 can be slid in the mounting cavity 43 by pushing the bottom of the slider 44 by hand.

[0052] Once the clamping assembly 30 is adjusted to the desired angle, the locking bolt 410 is rotated clockwise. One end of the bolt gradually extends into the mounting cavity 43 and abuts against the slider 44. The pressure of the bolt on the slider 44 generates friction, restricting the slider 44 from sliding along the mounting cavity 43. This fixes the position of the adjusting ring 46, preventing the extension rod 411 from driving the movable ball 42 to rotate. Ultimately, the angle of the clamping assembly 30 is locked, preventing angle deviation due to external force collisions or instrument vibrations during surgery, thus ensuring the stability and safety of the surgical operation. At the same time, rotating the locking bolt 410 counterclockwise releases the lock, allowing for easy adjustment of the angle according to surgical needs. The operation is flexible and convenient, and does not affect the continuity of the surgical procedure.

[0053] like Figure 4 , Figure 5 and Figure 8As shown, the second clamping piece 34 includes a circular portion and an annular portion. One side of the circular portion is connected to one end of the movable block 33, and the other side of the circular portion has an annular portion whose center coincides with that of the circular portion. The upper and lower ends of the annular portion have grooves 51. The upper and lower ends of the rod-shaped mounting block 52 slide in the two grooves 51 respectively. The length of the grooves 51 is the sliding distance of the mounting block 52. The mounting block 52 slides along the grooves 51 towards the circular portion. An annular cutting block 53 is fixedly installed on the mounting block 52. The mounting block 52 is arranged radially along the annular cutting block 53. The annular cutting block 53 is on the same straight line as the center of the annular portion. The annular cutting block 53 surrounds and wraps around the annular portion, that is, the outer wall of the annular portion is in close contact with the inner wall of the annular cutting block 53. When the mounting block 53 slides to abut against one side of the circular portion, the side wall of the annular cutting block 53 seals the gap between the circular portions of the first clamping piece 32 and the second clamping piece 34, forming an annular closed cavity between the first clamping piece 32 and the second clamping piece 34.

[0054] A pull rope 54 is fixedly installed at the center of the mounting block 52. The pull rope 54 passes through the second clamping piece 34, the movable block 33, the transmission rod 35, the movable ball 42, and the extension rod 411, and extends to the outside of the operating handle 10. The movable ball 43 and the extension rod 411 are both located inside the movable inner tube 12. The movable hole 11 is located above the mounting cavity 43. The top of the mounting cavity 43, the bottom of the movable hole 11, and the bottom of the movable inner tube 12 are provided with openings to connect the movable inner tube 12 and the mounting cavity 43 for the fixed rod 45 to extend into. The top of the fixed rod 45 and the adjusting ring 46 are located inside the movable inner tube 12. Two protrusions 48 are installed on the top wall of the mounting cavity 43.

[0055] The groove 51 provides precise sliding guidance for the mounting block 52, ensuring that the mounting block 52 drives the annular cutting block 53 to move in a straight line. The annular cutting block 53 adopts an annular structure design, which can realize annular cutting of the affected tissue. It is suitable for surgical scenarios that require the removal of local tissue blocks. The pull rope 54 serves as a power transmission component. Medical staff can control the sliding of the mounting block 52 by pulling or releasing the pull rope 54. When cutting is required, after the clamping component 30 fixes the affected tissue, the pull rope 54 is pulled. The pull rope 54 drives the mounting block 52 to slide along the groove 51 towards the affected area. The annular cutting block 53 moves accordingly and contacts the affected tissue to complete the annular cutting. After cutting, the annular cutting block 53 can cooperate with the first clamping piece 32 and the second clamping piece 34 to form a placement cavity, bringing the cut tissue out of the patient's body, avoiding secondary contamination, and improving the minimally invasive effect of the surgery. After the operation, the annular cutting block 53 of the mounting block 52 can be manually reset.

[0056] like Figure 1 and Figure 2 As shown, a camera 14 is fixedly mounted on the circular part of the second clamping piece 34 for observing the inside of the patient's body.

[0057] The camera 14 is fixedly mounted on the circular portion of the second clamping plate 34 and moves together with the movable block 33 and the clamping assembly 30, enabling close-up alignment with the affected tissue. During the surgery, the camera 14 is activated to collect real-time images of the inside of the affected area and transmits the image signals to an external display device, providing medical staff with a clear and intuitive internal view. This is existing technology and will not be described in detail here.

[0058] like Figure 1 and Figure 2 As shown, an illumination lamp bead 13 is fixedly installed on the mounting block 52 to illuminate the field of vision of the affected area;

[0059] The lighting bulb 13 is fixed on the mounting block 52, and is located close to the annular cutting block 53 and the camera 14, enabling direct directional lighting of the affected area. Because the internal environment of the human body is dark and lacks natural light, insufficient light can easily cause blurry images and unclear details when the camera 14 captures images, affecting the judgment of medical personnel.

[0060] The working process of the minimally invasive gynecological surgical instrument with real-time image guidance and a variable-angle operating head provided by this invention is as follows:

[0061] Medical staff hold the operating handle 10 and start the first motor 22. The first motor 22 drives the threaded adjustment block 23 to rotate in the threaded groove of the adjustment cavity 21. The rotational motion is converted into linear motion through the threaded transmission, which drives the movable inner tube 12 to slide along the movable hole 11 of the operating handle 10 until the clamping assembly 30 reaches the appropriate initial position close to the patient's body. The first motor 22 is then turned off, and the self-locking property of the threaded transmission keeps the movable inner tube 12 in a fixed position.

[0062] Based on the location and angle of the affected area determined by preoperative imaging examination, medical staff push the slider 44 in the mounting cavity 43. The slider 44 compresses one side spring 49 and stretches the other side spring 49, which drives the adjusting ring 46 to move through the fixing rod 45. The adjusting ring 46 drives the extension rod 411 to swing through the friction between the internal rubber pad 47 and the extension rod 411, which in turn drives the movable ball 42 in the fixing ring 41 to rotate. The movable ball 42 drives the mounting cover 31 and the entire clamping assembly 30, cutting assembly 50, camera 14 and lighting lamp 13 to rotate synchronously, adjusting to the best angle that can accurately align with the affected area. After the angle adjustment is completed, the locking bolt 410 on the operating handle 10 is rotated so that the end of the bolt abuts against the slider 44, fixing the position of the slider 44 through friction, thereby locking the rotation angle of the movable ball 42 and ensuring the stability of the angle of the clamping assembly 30 during the operation.

[0063] The camera 14 and the illumination bulb 13 on the mounting block 52 are activated. The illumination bulb 13 emits directional light to illuminate the internal area of ​​the affected area, eliminating the impact of darkness. The camera 14 captures clear images of the affected tissue in real time and transmits the image signal to an external display device. Medical staff can observe the specific condition of the affected area, including tissue morphology and boundary range, through the display screen, providing precise guidance for subsequent operations.

[0064] The second motor 38 is started by an external control device. The output shaft of the second motor 38 drives the toothed block 39 to rotate. The toothed block 39 meshes with the toothed groove 37 on the transmission rod 35, transmitting power to the transmission rod 35. This causes the transmission rod 35 to rotate in the threaded hole of the positioning block 36. Since the transmission rod 35 is rotatably connected to the movable block 33, the axial force generated by the threaded transmission pushes the movable block 33 to slide along the inside of the mounting cover 31, causing the second clamping piece 34 to move closer to the fixed first clamping piece 32 until the two clamp the target tissue stably and firmly. The clamping force is precisely controlled by the output power of the second motor 38 to avoid damaging the tissue.

[0065] After the clamping component 30 fixes the affected tissue, the medical staff pulls the pull rope 54 that extends to the operating handle 10. The pull rope 54 drives the mounting block 52 to slide along the slide groove 51 toward the affected area. The annular cutting block 53 on the mounting block 52 moves accordingly, contacts the affected tissue and performs annular cutting. The medical staff senses the pulling force feedback of the pull rope 54 through their hands and controls the cutting depth and speed to ensure accurate removal of the diseased tissue.

[0066] After the cutting operation is completed, the first motor 22 is started to rotate in the opposite direction, driving the movable inner tube 12 to contract, thus removing the entire functional component from the patient's body. The camera 14, the lighting lamp 13, and all motors are then turned off, completing the surgical operation.

[0067] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A minimally invasive gynecological surgical instrument with real-time image guidance and a variable-angle operating head, including an operating handle, characterized in that, The operating handle has a movable hole, and a movable inner tube whose displacement is controlled by a telescopic mechanism is slidably installed in the movable hole; the telescopic mechanism is located inside the operating handle. A clamping assembly is mounted on one end of a movable inner tube via a connecting assembly. The clamping assembly is equipped with a cutting assembly. The clamping assembly is used to clamp the affected area, and the cutting assembly cuts the affected area.

2. The minimally invasive gynecological surgical instrument with real-time image guidance and a variable-angle operating head according to claim 1, characterized in that, The telescopic mechanism includes an adjustment cavity formed inside the operating handle, a threaded groove provided inside the adjustment cavity, a first motor fixedly mounted on the movable inner tube, a threaded adjustment block fixedly mounted on the output shaft of the first motor, and the threaded adjustment block being threadedly connected to the threaded groove.

3. The minimally invasive gynecological surgical instrument with real-time image guidance and a variable-angle operating head according to claim 2, characterized in that, The clamping assembly includes a mounting cover, an annular first clamping piece fixedly mounted on one end of the mounting cover, a movable block slidably mounted inside the mounting cover, a second clamping piece cooperating with the first clamping piece fixedly mounted on one end of the movable block, a positioning block fixedly mounted inside the mounting cover, and a transmission rod rotatably mounted on the other end of the movable block. The transmission rod is threadedly connected to the positioning block, and a toothed groove is formed on the transmission rod.

4. The minimally invasive gynecological surgical instrument with real-time image guidance and a variable-angle operating head according to claim 3, characterized in that, The clamping assembly also includes a second motor fixedly mounted on the positioning block, and a toothed block that meshes with the toothed groove is fixedly mounted on the output shaft of the second motor.

5. The minimally invasive gynecological surgical instrument with real-time image guidance and a variable-angle operating head according to claim 4, characterized in that, The connecting assembly includes a fixed ring fixedly installed on the inner wall of the movable inner tube, a movable ball movably installed inside the fixed ring, and a mounting cover fixedly installed on the movable ball.

6. The minimally invasive gynecological surgical instrument with real-time image guidance and a variable-angle operating head according to claim 5, characterized in that, The operating handle has an installation cavity, in which a slider is slidably installed. A pair of protrusions are fixedly installed on the top wall of the installation cavity, and a spring is fixedly installed on each of the protrusions. The end of the spring away from the protrusion abuts against the slider. An extension rod is fixedly installed on the movable ball, and a fixing rod is fixedly installed on the slider. An adjusting ring is fixedly installed on the fixing rod. The adjusting ring is sleeved on the extension rod and supports the movement of the movable ball in conjunction with the extension rod. A rubber pad is fixedly installed on the inner wall of the adjusting ring.

7. The minimally invasive gynecological surgical instrument with real-time image guidance and a variable-angle operating head according to claim 6, characterized in that, A locking bolt is threaded onto the operating handle, and one end of the locking bolt is located inside the mounting cavity and abuts against the slider.

8. The minimally invasive gynecological surgical instrument with real-time image guidance and a variable-angle operating head according to claim 7, characterized in that, The second clamping piece has grooves at both its upper and lower ends. The upper and lower ends of the mounting block are slidably connected in the two grooves. An annular cutting block is fixedly installed on the mounting block. A pull rope is fixedly installed on the mounting block. The pull rope passes through the second clamping piece, the movable block, the transmission rod, the movable ball, and the extension rod and extends to the outside of the operating handle.

9. The minimally invasive gynecological surgical instrument with real-time image guidance and a variable-angle operating head according to claim 8, characterized in that, A camera is fixedly installed on one side of the second clamping plate for observing the inside of the patient's body.

10. The minimally invasive gynecological surgical instrument with real-time image guidance and a variable-angle operating head according to claim 8, characterized in that, The mounting block is fixedly equipped with lighting bulbs to illuminate the field of vision of the affected area.

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