Pull hook assembly for neck operation
By designing a neck surgical hook assembly that can flexibly adjust height, angle and position, the problems of manpower consumption, accumulated fatigue and inconvenience in the prior art are solved, and more efficient and stable surgical operations are achieved.
Patent Information
- Application Number
- CN202411989651.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-03-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing neck surgical hook components have labor consumption and accumulated fatigue in actual operation, causing the hook to loosen and displace, and cannot meet the pulling needs in the circumferential direction, which is inconvenient to adjust and unstable to fix.
A neck surgical hook assembly is designed, including a base, drive assembly, mounting arc rod and hook seat. Through the expansion and contraction of the support rod and the drive assembly, flexible adjustment of the height, angle and position of the hook is achieved, enhancing convenience and practicality.
It realizes the release of manpower, reduces operation fatigue, and can flexibly adjust the height, angle and position of the hook to meet different pulling needs, and improves the smoothness and success rate of the operation.
Smart Images
Figure CN119606452A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of medical devices, and in particular relates to a neck surgery retractor assembly. Background Art
[0002] Neck surgery is an important treatment for neck diseases. The neck contains many important structures, such as blood vessels, nerves, lymph nodes, thyroid, parathyroid, oropharynx, laryngopharynx and congenital diseases of the neck, so neck surgery requires high professional skills and precise operation. Neck surgery can be used to treat a variety of diseases, such as oropharyngeal tumors, thyroid and paraglandular tumors, lymphadenopathy, cervical spondylosis, etc. During the operation, the doctor will choose the appropriate surgical method according to the patient's specific situation, such as removing the diseased tissue and reconstructing the structure. Neck surgery usually requires general anesthesia and is performed in a professional operating room. After the operation, the patient needs to follow the doctor's advice for rehabilitation and care, including keeping the wound clean and avoiding strenuous exercise. At the same time, the patient also needs to have regular follow-up to ensure the effectiveness of the operation and prevent the occurrence of complications. In short, neck surgery is an important treatment method that can help patients recover their health and improve their quality of life. Before undergoing neck surgery, patients should fully understand the risks and precautions of the operation and make decisions under the guidance of the doctor.
[0003] Neck surgery covers a variety of types, mainly used to treat various diseases and pathological conditions in the neck. Including: oropharyngeal surgery, thyroid and parathyroid surgery, lymph node resection, cervical spondylosis surgery, tracheotomy, etc. In many neck surgeries, retractors are needed to pull neck tissues, such as muscles and vertebral plates, so that doctors can clearly see the surgical area during the operation and perform precise operations. This helps reduce surgical risks and improve the success rate of surgery.
[0004] However, in the prior art, simple surgical retractors are usually used by surgical assistants in actual operation, following the instructions of the surgeon. Such operation has problems: it is labor-intensive, and the assistants accumulate fatigue due to long-term operation, which causes the retractor to loosen and shift, affecting the smooth progress of the operation; the existing simple retractor components can usually only be pulled from both sides, which cannot meet the pulling requirements in the circumferential direction, and the height, distance, position, etc. are inconvenient to adjust, and the fixation is unstable; Therefore, it is necessary to provide a neck surgery retractor assembly that can flexibly adjust the angle and position of the retractor and can be quickly installed and stably used. Summary of the invention
[0005] In order to solve the above technical problems, the present invention provides a neck surgery hook assembly, which is designed on the overall position and angle adjustment structure of the hook, and can be opened as a whole after being fixed and installed; the height angle and position can be conveniently adjusted and positioned, thereby enhancing convenience and practicality; In order to achieve the above technical objectives, the present invention is implemented by the following technical solutions: A neck surgery retractor assembly, comprising: a base A, a base B, a driving assembly, two mounting arc rods, a mounting plate A, a mounting plate B, a retractor seat, and a retractor; The base A and the base B are slidably mounted with a support rod A and a support rod B, respectively, and the support rod A is driven by the driving assembly to slide linearly on the base A; a mounting plate A is rotatably mounted on the top of the support rod A, and a mounting arc rod is rotatably mounted on both sides of the mounting plate A, and the two mounting arc rods form a ring structure; the other ends of the two mounting arc rods are rotatably mounted on the mounting plate B, respectively; the mounting plate B is fastened to the top of the support rod B by studs; The arc rod is a rod with an arc track, and is slidably sleeved with a plurality of hook seats; a hook groove is rotatably mounted on the hook seat, and a hook rod is slidably inserted in the hook groove; the ends of the plurality of hook rods are respectively fixedly connected with a wide hook, a narrow hook and a torsion spring clip for hanging connection; Furthermore, the support rod A and the support rod B are both rods that can be extended in the vertical direction, and the length is fixed after extension, and the top ends are at the same height; the support rod A and the support rod B are one or more of a pin extension rod, a spring pin extension rod, a pneumatic push rod, an electric push rod, and a hydraulic push rod; the bottom end of the support rod A is fixedly connected to an internally threaded slider; the bottom end of the support rod B is fixedly connected to a slider B; the mounting seat A and the mounting seat B are respectively fixedly connected to a slide rail A and a slide rail B with collinear tracks, the internally threaded slider is adapted to the slide rail A, and the slider B is adapted to the slide rail B; Furthermore, the driving assembly includes a driving member and a threaded push rod; the driving member is fixed to one end of the slide rail A and outputs a rotary motion in a vertical plane, and the output end is fixedly connected to the spiral push rod; the spiral push rod is spirally connected to the internal thread slider and drives the internal thread slider to slide in the slide rail A by rotating; Furthermore, a damping shaft is rotatably mounted on the top of the support rod A, and the mounting plate A is rotatably mounted on the damping shaft; gear A is rotatably mounted on both sides above the mounting plate A, and gear B is fixedly connected to both ends of the mounting arc rod, and the gear A is meshed with the gear B, and the gear A is located below the gear B; Furthermore, toothed pins are installed on both sides of the top of the mounting plate A and the mounting plate B respectively; the toothed pin is a structure meshing with the gear B, and the top is fixedly connected to the limit plate A, a pull rod is fixedly connected to the top of the limit plate A, and a spring is sleeved on the pull rod; the top of the spring is cut at the limit plate B; the limit plate B is fixedly connected to the top of the mounting plate A and the mounting plate B; the pull rod passes through the limit plate B; Furthermore, the bottom end of the mounting plate B is fixedly connected to a support plate that overhangs outward, and the top end of the support rod B is fixedly connected to a pad; the pad and the support are provided with screw holes that penetrate up and down, and the support cover is fitted on the pad and is limited by screwing studs in the screw holes; Furthermore, the bottom of the hook seat is a sliding sleeve, which is sleeved on the installation arc rod and slides in a circle on the installation arc rod; a mounting groove is fixedly connected above the sliding sleeve; a gear C and a gear D that mesh with each other are installed in the installation groove, and the gear C drives the gear D to rotate; a hook groove is fixedly connected above the gear D; a hook rod is inserted into one side of the hook groove, and a gear E is rotatably installed on the other side, the gear E meshes with the teeth of the hook rod, and the rotation of the gear E drives the hook rod to slide in the hook groove; a size scale is provided on the upper surface of the hook rod, and the size scale is arranged along the extension direction of the hook rod and indicates the length of the hook rod extending into the installation arc rod; Furthermore, a fastening nut A and a fastening nut B are screwed on the lower part of the sliding sleeve and the plug-in slot respectively; after the hook rod slides, the fastening nut B is screwed to limit the position; after the hook seat slides and rotates on the mounting arc rod, the fastening nut A is screwed to tighten the hook seat; Furthermore, two angle scales are provided on the adjacent two side walls of the mounting plate A and the mounting plate B; the two angle scales are respectively located outside the circumference of the two gears B, and respectively indicate the rotation angles of the two mounting arc rods relative to the horizontal plane; Furthermore, the base A and the base B are both U-shaped plates, and a pressing plate that is slidably connected inside and can be lifted and lowered in the vertical direction is provided; the pressing plate is located in a horizontal plane and is fixedly connected with a screw rod; the screw rod spirally passes through the U-shaped plate from top to bottom, and the pressing plate is driven to be lifted and lowered by the spiral rotation of the screw rod; Furthermore, the wide hook and the narrow hook are both hook-shaped structures formed by bending downward toward the outside of the installation arc rod at one end of the hook rod extending into the installation arc rod; Furthermore, the end of the hook rod extending into the mounting arc rod is fixedly connected with a spring, and the spiral axis of the spring is parallel to the extension direction of the hook rod; the torsion spring clip is hung on the end of the spring away from the hook seat; The beneficial effects of the present invention are: The present invention provides a neck surgical retractor assembly. Compared with the traditional simple retractor, which is manually pulled by the surgical assistant, the present device finally achieves the liberation of manpower through structural design, and can flexibly adjust the height angle and position of the retractor. Specifically: In the present invention, the support rod A and the support rod B are equally telescopic, driving the two mounting arc rods to connect the plurality of retractors and retractor seats mounted thereon to rise and fall as a whole, which can conveniently meet the use requirements of different pulling heights; the support rod A, the support rod B together with the plurality of retractors and retractor seats are driven by the driving assembly, and the whole slide on the base A and the base B, and the position in the horizontal direction can be adjusted; it is convenient to adjust the horizontal position during the operation; The carrier plate and the pad are detachably fastened and installed, so that the two installation arc rods are flip-covered structures, which facilitates flipping open the two installation arc rods and the retractor and retractor seat, and the tissue pulling operation can be performed after the patient's surgical position is adjusted; The two arc-mounted rods can be rotated independently and then limited by the toothed pins, so that a single arc-mounted rod can be flexibly rotated to meet the use requirements of different angles; the hook seat can slide freely on the arc-mounted rod and then be tightened and limited, and the position of the hook on the arc-mounted rod can be flexibly adjusted; the hook slides and limits in the hook seat along with the rack, realizing the extension and retraction of the hook in the annular structure formed by the two arc-mounted rods, and realizing the effect of conveniently adjusting the position of the hook. At the same time, the plug-in slot can rotate on the hook seat, further realizing the swing of the hook in the arc-mounted rod. BRIEF DESCRIPTION OF THE DRAWINGS
[0006] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.
[0007] Figure 1 It is a schematic diagram of the overall structure of the present invention from one perspective; Figure 2 It is a schematic diagram of the overall structure of the present invention from another perspective; Figure 3 It is a schematic diagram of the installation structure of the driving mechanism, the support rod A and the installation plate A of the present invention; Figure 4 It is a schematic diagram of the installation structure of the base B and the support rod B and the pad and the mounting plate B of the present invention; Figure 5 It is a schematic diagram of the installation structure of the installation arc rod, the hook seat and the hook of the present invention; Figure 6 It is a schematic diagram of the installation structure of the torsion spring clip, the hook rod and the hook seat of the present invention; Figure 7 It is a schematic diagram of the enlarged local structure at A in the figure of the present invention; Figure 8 It is a schematic diagram of the enlarged local structure at B in the figure of the present invention; Fig. 9 The present invention Figure 2 A magnified schematic diagram of the local structure at C in the middle; Fig.10 The present invention Figure 2 A magnified schematic diagram of the local structure at D in the middle; In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1-base A, 101-slide rail A, 102-pressing plate, 103-screw, 104-support rod A, 1041-internal thread slider, 1042-damping shaft, 105-mounting plate A, 106-gear A, 107-angle scale, 2-base B, 201-slide rail B, 202-support rod B, 2021-slider B, 2022-pad, 3-driving assembly, 301-driving member, 302-threaded push rod, 4-Install the arc rod, 401-Gear B, 5-installation plate B, 501-supporting plate, 502-limiting plate B, 6-hook seat, 601-hook slot, 602-hook rod, 603-sliding sleeve, 604-installation slot, 605-gear C, 606-gear D, 607-gear E, 608-size scale, 609-fastening nut A, 6010-fastening nut B, 7-hook, 701-wide hook, 702-narrow hook, 703-torsion spring clip, 8-tooth pin, 801-limiting plate, 802-pull rod, 803-spring. DETAILED DESCRIPTION
[0008] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example
[0009] See also Figure 1-Figure 10 In this embodiment, a neck surgical retractor assembly includes: a base A1, a base B2, a driving assembly 3, two mounting arc rods 4, a mounting plate A105, a mounting plate B5, a retractor seat 6, and a retractor 7; in this assembly, the base A1 and the base B2 are supporting components of the device, and the device is installed on both sides of the patient's neck on the bed as a whole, and other components of the device are installed on the base A1 and the base B2, and the driving assembly 3 outputs a linear pushing motion to drive the support rod A104, the support rod B202 and the mounting arc rod 4 to slide as a whole; the device is fine-tuned so that even if the patient is not lying in the center of the bed, the device can still be adjusted to the top of the patient's neck incision by sliding adjustment; In this embodiment, the base A1 and the base B2 are respectively slidably mounted with a support rod A 104 and a support rod B 202, and the support rod A 104 is driven by the driving assembly 3 to slide linearly on the base A1; a mounting plate A 105 is rotatably mounted on the top of the support rod A 104, and a mounting arc rod 4 is rotatably mounted on both sides of the mounting plate A 105, and the two mounting arc rods 4 form a ring structure; the other ends of the two mounting arc rods 4 are respectively rotatably mounted on the mounting plate B 5; the mounting plate B 5 is fastened to the top of the support rod B 202 by studs; In this embodiment, the installation arc rod 4 is a rod with an arc trajectory, and is slidably sleeved with a plurality of hook seats 6; a hook groove 601 is rotatably installed on the hook seat 6, and a hook rod 602 is slidably inserted in the hook groove 601; the ends of the plurality of hook rods 602 are respectively fixedly connected with a wide hook 701, a narrow hook 702 and a torsion spring clamp 703 for hanging connection; the form of the hook in the present invention includes a wide hook with a wider width and a narrow hook with a narrower width and a torsion spring clamp for clamping with a torsion spring torsion force, and the purpose is to set a variety of hook forms to meet different needs in actual use. Those skilled in the art know that different forms of hooks and clips are conventional choices. On the basis of adopting the technical solution of the present device, only the specific form of the hook can be replaced without creative labor; In this embodiment, the support rod A 104 and the support rod B 202 are both rods that can be extended in the vertical direction, and the length is fixed after extension, and the top ends are at the same height; the support rod A 104 and the support rod B 202 are one or more of a latch telescopic rod, a spring pin telescopic rod, a pneumatic push rod, an electric push rod, and a hydraulic push rod; the bottom end of the support rod A 104 is fixedly connected with an internal thread slider 1041; the bottom end of the support rod B 202 is fixedly connected with a slider B 2021; the mounting seat A and the mounting seat B are respectively fixedly connected with a slide rail A 101 and a slide rail B 201 with collinear tracks, the internal thread slider 1041 is adapted to the slide rail A 101, and the slider B 2021 is adapted to the slide rail B 201; In this embodiment, the driving component 3 includes a driving member 301 and a threaded driving rod 302; the driving member 301 is fixed to one end of the slide rail A 101 and outputs a rotary motion in a vertical plane, and the output end is fixedly connected to the spiral driving rod; the spiral driving rod 302 is spirally connected to the internal thread slider 1041, and drives the internal thread slider 1041 to slide in the slide rail A 101 by rotating; that is, the driving component 3 of the present invention is a structure that drives the internal thread slider 1041 to slide linearly by spiral rotation; In this embodiment, a damping shaft 1042 is rotatably mounted on the top of the support rod A 104, and the mounting plate A 105 is rotatably mounted on the damping shaft 1042; gear A 106 is rotatably mounted on both sides above the mounting plate A 105, and gear B 401 is fixedly connected to both ends of the mounting arc rod 4, and the gear A 106 is meshed with the gear B 401, and the gear A 106 is located below the gear B 401; the function of the damping shaft 1042 is to provide a certain resistance to the flipping of the mounting arc rod 4, so as to prevent it from rotating rapidly after being released from fastening, thereby causing damage to the incision; In this embodiment, tooth pins 8 are respectively installed on both sides of the top of the mounting plate A 105 and the mounting plate B 5; the tooth pin 8 is a structure meshing with the gear B 401, and the top is fixedly connected to the limiting plate A 801, and a pull rod 802 is fixedly connected above the limiting plate A 801, and a spring is sleeved on the pull rod 802; the top of the spring cuts the limiting plate B 502; the limiting plate B 502 is fixedly connected to the top of the mounting plate A 105 and the mounting plate B 5; the pull rod 802 passes through the limiting plate B 502; when the tooth pin 8 is pulled up, the spring is compressed, and the spring generates a reaction force of squeezing downward, squeezing the limiting plate A 801 and the tooth pin 8 from top to bottom to be stuck in the teeth of the gear B 401, thereby limiting the rotation of the mounting arc rod 4 by limiting the rotation of the gear B 401; In this embodiment, the bottom end of the mounting plate B 5 is fixedly connected to a support plate 501 that overhangs outward, and the top end of the support rod B 202 is fixedly connected to a pad 2022; screw holes that penetrate up and down are opened on the pad 2022 and the support plate 501, and the support plate 501 covers the pad 2022 and is limited by screwing the studs in the screw holes; technicians in this field already know that the fastening connection method is a mature technology in the prior art, and can flexibly select forms including bolts, spring pins and latches, the purpose of which is that the mounting arc rod 4 can be quickly released and flipped, and quickly fastened after rotation; In this embodiment, the bottom of the hook seat 6 is a sliding sleeve 603, and the sliding sleeve 603 is sleeved on the mounting arc rod 4 and slides in a circle on the mounting arc rod 4; a mounting groove 604 is fixedly connected above the sliding sleeve 603; a gear C 605 and a gear D 606 that mesh with each other are installed in the mounting groove 604, and the gear C 605 drives the gear D 606 to rotate; a hook groove 601 is fixedly connected above the gear D 606; the hook groove A hook rod 602 is inserted into one side of 601, and a gear 607 is rotatably installed on the other side. The gear 607 is meshed with the teeth of the hook rod 602, and the rotation of the gear 607 drives the hook rod 602 to slide in the hook groove 601; a size scale 608 is provided on the upper surface of the hook rod 602, and the size scale 608 is arranged along the extension direction of the hook rod 602 and indicates the length of the hook rod 602 extending into the installation arc rod 4; In this embodiment, a fastening nut A 609 and a fastening nut B 6010 are screwed on the lower side of the sliding sleeve 603 and the plug-in slot respectively; after the hook rod 602 slides, the fastening nut B 6010 is screwed to limit the position; after the hook seat 6 slides and rotates on the mounting arc rod 4, the fastening nut A 609 is screwed to tighten the hook seat 6; In this embodiment, two angle scales 107 are provided on the adjacent two side walls of the mounting plate A 105 and the mounting plate B 5; the two angle scales 107 are respectively located outside the circumference of the two gears B 401, and respectively indicate the rotation angles of the two mounting arc rods 4 relative to the horizontal plane; the inventor found in clinical practice that there is a need to pull the surgical incision in an oblique direction, so in the design of the present invention, the two mounting arc rods 4 drive the hook seat to rotate by rotating, so that the hook rod can slide obliquely in the hook seat; In this embodiment, the base A1 and the base B2 are both U-shaped plates, and a pressing plate 102 that is lifted and lowered in the vertical direction is slidably connected inside; the pressing plate 102 is located in a horizontal plane and is fixedly connected with a screw rod 103; the screw rod 103 spirally passes through the U-shaped plate from top to bottom, and the pressing plate 102 is driven to lift and lower through the spiral rotation of the screw rod 103; In this embodiment, the wide retractor 701 and the narrow retractor 702 are both hook-shaped structures formed by bending downward toward the outside of the installation arc rod 4 from one end of the retractor rod 602 extending into the installation arc rod 4; the bending direction of the retractor in the present invention is designed based on clinical practice. In clinical practice, the end of the retractor needs to be extended into the surgical incision and the surgical incision needs to be opened outward, so the bending direction and the use direction of the retractor need to be restricted; In this embodiment, the end of the hook rod 602 extending into the mounting arc rod 4 is fixedly connected with a spring, and the spiral axis of the spring is parallel to the extension direction of the hook rod 602; the torsion spring clip 703 is hung on the end of the spring away from the hook seat 6; the function and purpose of the spring connected between the torsion spring clip 703 and the hook rod 602 is to provide a buffer to prevent the skin and muscles around the incision from being damaged due to excessive pulling force of the torsion spring clip 703.
[0010] In this embodiment, the specific use process of a neck surgical retractor assembly is as follows: After the components of the device are assembled and installed according to the diagram and the above text description, the two arc rods 4 are connected to each other by adjusting or controlling the equal-height extension of the support rod A 104 and the support rod B 202, and the two arc rods 4 are raised to a predetermined height; the base A 1 and the base B 2 are respectively plugged into the two sides of the bed body and fixed by rotating the two screw rods 103; the driving member 301 is started, the support rod A 104 and the support rod B 202 are slid, and the two arc rods 4 and The mounting plate A 105 and the mounting plate B 5 are integrally slid to a predetermined position on the bed; first, the stud is screwed out to contact the connection relationship between the support plate and the pad 2022, and the two mounting arc rods 4 are flipped upwards. The patient lies between the base A 1 and the base B 2 on the bed according to the required position for the operation, and the two mounting arc rods 4 are flipped downwards, and the connection relationship between the support plate 501 and the pad 2022 is tightened by the stud, so that the two mounting arc rods 4 are rotated to the upper side of the predetermined pulling position; By rotating the gear A 106, the two installation arc rods 4 are driven to rotate to a predetermined angle respectively, and finally by reading the reading on the angle scale 107, it is confirmed that the installation arc rod 4 has rotated to the predetermined angle, and then the gear B 401 is limited by the tooth pin to complete the rotation and limitation of the installation arc rod 4; Slide the hook seat 6 and tighten it by tightening nut B 6010; then rotate the gear and slide the rack to move the hook 7 to a predetermined position, read the position of the hook 7 in the mounting arc rod 4 according to the size scale 608 on the rack, and then limit it by screwing the tightening nut A 609.
[0011] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.
Claims
1. A neck surgery retractor assembly, characterized in that: include: Base A, base B, drive assembly, two mounting arc rods, mounting plate A, mounting plate B, hook seat, hook; The base A and the base B are slidably mounted with a support rod A and a support rod B, respectively, and the support rod A is driven by the driving assembly to slide linearly on the base A; a mounting plate A is rotatably mounted on the top of the support rod A, and a mounting arc rod is rotatably mounted on both sides of the mounting plate A, and the two mounting arc rods form a ring structure; the other ends of the two mounting arc rods are rotatably mounted on the mounting plate B, respectively; the mounting plate B is fastened to the top of the support rod B by studs; The mounting arc rod is a rod with an arc trajectory and is slidably sleeved with a plurality of hook seats; a hook groove is rotatably mounted on the hook seat, and a hook rod is slidably inserted in the hook groove; the ends of the plurality of hook rods are respectively fixedly connected with a wide hook, a narrow hook and a hanging connection with a torsion spring clip.
2. A cervical surgery retractor assembly according to claim 1, characterized in that: The support rod A and the support rod B are both rods that can be extended and retracted in the vertical direction. After extension and retraction, the length is fixed and the top ends are at the same height; the support rod A and the support rod B are one or more of the following: a latch telescopic rod, a spring pin telescopic rod, a pneumatic push rod, an electric push rod, and a hydraulic push rod; the bottom end of the support rod A is fixedly connected to an internally threaded slider; the bottom end of the support rod B is fixedly connected to a slider B; the mounting seat A and the mounting seat B are respectively fixedly connected with a slide rail A and a slide rail B with collinear tracks, the internally threaded slider is adapted to the slide rail A, and the slider B is adapted to the slide rail B.
3. A cervical surgery retractor assembly according to claim 1, characterized in that: The driving assembly includes a driving member and a threaded push rod; the driving member is fixed to one end of the slide rail A and outputs rotational motion in a vertical plane, and the output end is fixedly connected to the spiral push rod; the spiral push rod is spirally connected to the internal thread slider and pushes the internal thread slider to slide in the slide rail A by rotating.
4. A cervical surgery retractor assembly according to claim 1, characterized in that: A damping shaft is rotatably installed at the top of the support rod A, and the mounting plate A is rotatably installed on the damping shaft; gear A is rotatably installed on both sides above the mounting plate A, and gear B is fixedly connected to both ends of the mounting arc rod, and the gear A is meshed with the gear B, and the gear A is located below the gear B.
5. The cervical surgery retractor assembly according to claim 1, characterized in that: Tooth pins are installed on both sides of the top of the mounting plate A and the mounting plate B respectively; the tooth pin is a structure meshing with the gear B, and the top is fixedly connected to the limit plate A, and a pull rod is fixedly connected to the top of the limit plate A, and a spring is sleeved on the pull rod; the top of the spring cuts into the limit plate B; the limit plate B is fixedly connected to the top of the mounting plate A and the mounting plate B; the pull rod passes through the limit plate B.
6. The cervical surgery retractor assembly according to claim 1, characterized in that: The bottom end of the mounting plate B is fixedly connected to a supporting plate cantilevered outward, and the top end of the support rod B is fixedly connected to a pad; screw holes penetrating from top to bottom are provided on the pad and the supporting plate, and the supporting plate covers the pad and is limited by screwing studs in the screw holes.
7. The cervical surgery retractor assembly according to claim 1, characterized in that: The bottom of the hook seat is a sliding sleeve, which is sleeved on the mounting arc rod and slides in a circle on the mounting arc rod; a mounting groove is fixedly connected above the sliding sleeve; gear C and gear D that mesh with each other are installed in the mounting groove, and gear C drives gear D to rotate; a hook groove is fixedly connected above gear D; a hook rod is inserted into one side of the hook groove, and gear E is rotatably installed on the other side, the gear E meshes with the teeth of the hook rod, and the rotation of gear E drives the hook rod to slide in the hook groove; a size scale is provided on the upper surface of the hook rod, and the size scale is arranged along the extension direction of the hook rod and indicates the length of the hook rod extending into the mounting arc rod.
8. The cervical surgery retractor assembly according to claim 1, characterized in that: A fastening nut A and a fastening nut B are screwed on the lower part of the sliding sleeve and the plug-in slot respectively; after the draw hook rod slides, the fastening nut B is screwed to limit the position; after the draw hook seat slides and rotates on the mounting arc rod, the fastening nut A is screwed to tighten it.
9. The cervical surgery retractor assembly according to claim 1, characterized in that: Two angle scales are arranged on the adjacent two side walls of the mounting plate A and the mounting plate B; the two angle scales are respectively located outside the circumference of the two gears B, and respectively indicate the rotation angles of the two mounting arc rods relative to the horizontal plane.
10. The cervical surgery retractor assembly according to claim 1, characterized in that: The end of the hook rod extending into the installation arc rod is fixedly connected with a spring, and the spiral axis of the spring is parallel to the extension direction of the hook rod; the torsion spring clip is hung on the end of the spring away from the hook seat.