A surgical pedicle screw inserter

Abstract

The utility model discloses a kind of vertebral arch root screw implanters for operation, involve vertebral arch root screw implanter field.The utility model includes implanter, the implanter includes handle, the top of handle is provided with mounting seat, the utility model is set by setting functional component, first function mechanism etc., including first threaded seat, when conventional operation, rotating rod is attached handle, keep streamline, doctor holds naturally, need not adjust posture.When additional moment is needed, thumb can spin out rotating rod, form force point, enhance rotation efficiency.First threaded seat is screwed with screw groove, it is convenient to be quickly disassembled or replace first function mechanism in operation, such as switch different rotating rod module, adapt to various surgical scene.This design solves the problems that traditional implanter relies on palm holding force, insufficient friction, easy to slide, low rotation accuracy, difficult to accurately control screw implantation and cause doctor hand fatigue, improves the stability and persistence of surgical operation.

Description

Technical Field

[0001] This utility model relates to the field of pedicle screw implanters, specifically a surgical pedicle screw implanter. Background Technology

[0002] Surgical pedicle screw placement devices are precision instruments used in spinal surgery. Designed for minimally invasive or open surgery, they accurately place pedicle screws into the pedicles to achieve spinal stability, correction, or fusion. Through optimized handle structure, rotational drive mechanism, and integrated functional modules, these devices assist surgeons in precisely controlling the screw insertion angle, depth, and torque in complex anatomical environments, reducing surgical trauma and improving operational safety. They are widely used in the treatment of degenerative spinal diseases, trauma, tumors, and deformities.

[0003] In traditional pedicle screw placement surgery, the surgeon relies mainly on the gripping force of their hand to rotate the handle. However, this rotation method often results in insufficient friction between the hand and the handle, leading to relative slippage during continuous force application or fine-tuning. This slippage not only reduces rotational accuracy, making it difficult to control the angle and depth of screw insertion, but may also cause hand muscle fatigue as the surgeon compensates by increasing gripping force, thus affecting the stability and continuity of the surgical procedure. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a surgical pedicle screw inserter to solve the technical problems of traditional inserters that rely on the gripping force of the hand to drive rotation, resulting in insufficient friction, easy slippage, reduced rotational accuracy, difficulty in accurately controlling the screw insertion angle and depth, and causing muscle fatigue in the surgeon's hand, affecting the stability and continuity of the surgical operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a surgical pedicle screw inserter, comprising an inserter, the inserter including a handle, a mounting base provided on the top of the handle, a threaded groove provided on the top of the mounting base, and a functional component screwed into the threaded groove;

[0006] The functional component includes a first functional mechanism, which includes a first threaded seat and is screwed to a threaded groove. Two side grooves are formed on both sides of the first threaded seat, and a rotating rod is rotatably connected to the side grooves through a damping shaft.

[0007] By adopting the above technical solution, the screw connection between the threaded groove and the functional component enables rapid replacement and upgrading of the functional component, thereby enhancing the versatility and scalability of the instrument.

[0008] Furthermore, the shape of the rotating rod is adapted to the handle, and the rotating rod fits snugly against the handle.

[0009] By adopting the above technical solution, the matching design of the rotating rod and the handle ensures that the rotating rod is flush with the surface of the handle when idle, which does not affect the doctor's grip and routine operation, while maintaining the overall aesthetics and ergonomic characteristics of the instrument.

[0010] Furthermore, the rotating rods are configured as a pair, and the pair of rotating rods are mirror-symmetrically distributed along the central longitudinal axis of the handle, wherein each rotating rod is configured to provide an auxiliary torque by applying force with the thumb to enhance the circumferential rotation efficiency of the inserter.

[0011] By adopting the above technical solution, a pair of mirror-symmetrically distributed rotating rods allow doctors to easily rotate the rotating rods with their thumbs as needed for surgery, providing additional auxiliary torque, enhancing the circumferential rotation efficiency of the implant, and reducing the difficulty of surgical operation.

[0012] Furthermore, the functional component includes a second functional mechanism, which includes a battery holder. The bottom of the battery holder is provided with a second threaded seat, and the second threaded seat is screwed into a threaded groove.

[0013] By adopting the above technical solution, the implanter is provided with another possible functional expansion besides rotation assistance, such as field illumination. Through the screw connection between the second threaded seat and the threaded groove, it is possible to quickly switch with the first functional mechanism.

[0014] Furthermore, the top surface of the battery holder is provided with a mounting ring, and the bottom surface of the mounting ring is surrounded by supplementary lights, which are used to provide visual illumination.

[0015] By adopting the above technical solution, surgical field illumination is provided, which helps doctors to observe the surgical field more clearly in deep or poorly lit surgical environments, thereby improving surgical accuracy and safety.

[0016] Furthermore, the bottom of the handle is provided with a screw, and the outer circumferential surface of the screw is provided with a plurality of U-shaped grooves at equal intervals along the circumference, the U-shaped grooves forming a ring array structure.

[0017] By adopting the above technical solution, the U-shaped groove makes the outer circumference of the screw no longer a smooth cylindrical surface, thus enabling it to more effectively capture and retain cleaning fluid during cleaning, thereby enhancing the flushing and decontamination capabilities of the screw surface.

[0018] Furthermore, the bottom of the screw is detachably connected to an insertion screw head, which is used to engage the pedicle screw.

[0019] By adopting the above technical solutions, the clamping and replacement of pedicle screws become more convenient, improving surgical efficiency and reducing the risk of surgical interruption due to screw head damage or mismatched models.

[0020] In summary, the present invention has the following main advantages:

[0021] 1. This utility model, by setting up functional components, a first functional mechanism, a first threaded seat, a side groove, a damping shaft, and a rotating rod, ensures that in normal operation, the rotating rod fits against the handle surface, maintaining the overall streamlined structure of the instrument. This ensures that the doctor's hand naturally fits the handle during normal grip, without the need to adjust posture. When additional torque is required, the doctor can rotate the rotating rod outward around the damping shaft with their thumb, forming a force application point protruding from the handle surface, thereby providing auxiliary torque and enhancing rotational efficiency. Moreover, the threaded connection structure between the first threaded seat and the threaded groove allows the doctor to quickly disassemble or replace the first functional mechanism during surgery, such as switching to a module with rotating rods of different lengths or shapes to adapt to different surgical scenarios. Through this setting, the problem of insufficient friction and easy slippage caused by traditional implants relying on hand gripping force to drive rotation is solved, which reduces rotational accuracy, makes it difficult to accurately control the screw insertion angle and depth, and causes muscle fatigue in the doctor's hand, affecting the stability and continuity of surgical operations.

[0022] 2. This utility model incorporates a second functional mechanism, a second threaded seat, a battery holder, a mounting ring, and a supplementary light. The second functional mechanism is screwed into the threaded groove via the second threaded seat, allowing surgeons to quickly disassemble and replace functional components according to surgical needs, such as switching from rotation assist mode to lighting enhancement mode, without the need for additional tools or complex operations. During surgery, if insufficient lighting in the surgical field is encountered or it is necessary to observe the screw insertion depth, the second functional mechanism can be installed immediately to avoid interrupting the surgical process due to lighting issues, thus improving operational continuity and efficiency. The supplementary light, which is arranged around the bottom of the mounting ring, provides 360° ring lighting around the screw axis, ensuring no shadowed areas in the surgical field. In addition, the built-in power supply in the battery holder eliminates the need for external cables for the supplementary light, preventing cable entanglement or interference with the surgeon's operation during surgery. Furthermore, the modular design allows for quick replacement of spare batteries, ensuring continuous lighting during prolonged surgeries. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a side view cross-sectional three-dimensional structural schematic diagram of the present invention;

[0025] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0026] Figure 4 This is a partial three-dimensional structural diagram of the second functional mechanism of this utility model.

[0027] In the diagram: 1. Insertor; 101. Handle; 102. Screw; 103. U-shaped groove; 104. Insertion screw head; 105. Mounting base; 106. Threaded groove; 4. Functional component; 2. First functional mechanism; 201. First threaded seat; 202. Side groove; 203. Damping shaft; 204. Rotating rod; 3. Second functional mechanism; 301. Second threaded seat; 302. Battery holder; 303. Mounting ring; 304. Supplemental light. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] Example 1:

[0030] A surgical pedicle screw inserter, such as Figures 1-4 As shown, it includes an inserter 1, which includes a handle 101. A mounting base 105 is provided on the top of the handle 101. A threaded groove 106 is provided on the top of the mounting base 105. A functional component 4 is screwed into the threaded groove 106.

[0031] The functional component 4 includes a first functional mechanism 2, which includes a first threaded seat 201. The first threaded seat 201 is screwed to a threaded groove 106. Two side grooves 202 are opened on both sides of the first threaded seat 201. A rotating rod 204 is rotatably connected to the side groove 202 through a damping shaft 203. Through the screwed connection design between the threaded groove 106 and the functional component 4, the functional component can be quickly installed and disassembled, which greatly improves the flexibility and expandability of the implant 1. Doctors or operators can easily replace different functional components 4, such as the first functional mechanism 2 or the second functional mechanism 3, according to the surgical needs to adapt to different surgical scenarios and operational requirements.

[0032] See Figure 1 , Figure 3 The shape of the rotating rod 204 is adapted to the handle 101, and the rotating rod 204 fits snugly against the handle 101. This design ensures that the rotating rod 204 fits snugly against the handle 101 when not in use. This not only maintains the overall aesthetics of the instrument but also prevents the rotating rod 204 from rotating accidentally or interfering with the operation during surgery. At the same time, this design also makes it easy for doctors to quickly and accurately locate and operate the rotating rod 204 when needed.

[0033] See Figure 3, Figure 4 The rotating rods 204 are configured as a pair, and the pair of rotating rods 204 are mirror-symmetrically distributed along the central longitudinal axis of the handle 101. Each rotating rod 204 is configured to provide an auxiliary torque by applying force with the thumb to enhance the circumferential rotation efficiency of the inserter 1. The design of a pair of mirror-symmetrically distributed rotating rods 204 provides doctors with the possibility of two-handed operation, enhancing the flexibility and stability of the operation. By providing an auxiliary torque by applying force with the thumb, doctors can more easily control the circumferential rotation of the inserter 1. Especially when fine adjustments or large torques are required, this design can significantly reduce the doctor's workload and improve surgical efficiency.

[0034] The implementation principle of this embodiment is as follows: First, through the fitting design of the rotating rod 204 and the handle 101, it is ensured that the overall shape of the functional component 4 conforms to ergonomics in the normal grip state, so as to avoid interfering with the doctor's operation.

[0035] When it is necessary to increase the rotational torque, the doctor can use his thumb to rotate the rotating rod 204 outward around the damping shaft 203. The lever structure formed by the rotating rod 204 and the handle 101 provides an auxiliary torque for circumferential rotation, thereby overcoming the slippage problem caused by insufficient friction in the traditional handle 101.

[0036] In addition, due to the design of a pair of mirror-symmetrical rotating rods 204, doctors with both left and right hands or different rotation directions such as clockwise and counterclockwise can achieve efficient rotation by applying force with their thumbs, which improves the versatility and operational flexibility of the instrument.

[0037] Example 2:

[0038] See Figure 4 The functional component 4 includes a second functional mechanism 3, which includes a battery holder 302. The bottom of the battery holder 302 is provided with a second threaded seat 301, and the second threaded seat 301 is screwed into the threaded groove 106. The introduction of the second functional mechanism 3, through the screwing of the second threaded seat 301 into the threaded groove 106, enables quick switching with the first functional mechanism 2. This modular design allows the implanter 1 to be flexibly configured with different functional components, such as visual field illumination, according to different surgical needs, thereby improving the versatility and practicality of the instrument.

[0039] See Figure 4The top surface of the battery holder 302 is provided with a mounting ring 303, and the bottom surface of the mounting ring 303 is surrounded by supplementary lights 304. The supplementary lights 304 are used to provide visual illumination. The mounting ring 303 on the top surface of the battery holder 302 and the supplementary lights 304 on the bottom surface provide surgical field illumination. This design allows doctors to observe the surgical field more clearly during surgery, especially in deep or poorly lit surgical environments, where the illumination effect of the supplementary lights 304 is particularly important. At the same time, the ring array structure of the supplementary lights 304 can provide a more uniform and shadow-free illumination effect, further improving the accuracy and safety of the surgery.

[0040] See Figure 1 , Figure 4 The bottom of the handle 101 is provided with a screw 102. The outer circumferential surface of the screw 102 is provided with multiple U-shaped grooves 103 distributed at equal intervals along the circumference. The U-shaped grooves 103 form a ring array structure. The ring array structure formed by the multiple U-shaped grooves 103 distributed at equal intervals along the circumferential surface of the screw 102 not only enhances the connection stability between the screw 102 and the surrounding components, but also provides additional space for accommodating lubricant or cleaning fluid, which helps to reduce friction and wear and extend the service life of the instrument. At the same time, this structure also facilitates cleaning and disinfection during the operation, ensuring the hygiene and safety of the instrument.

[0041] See Figure 4 The bottom of the screw 102 is detachably connected to an insertion screw head 104, which is used to engage pedicle screws. The design of the insertion screw head 104 detachably connected to the bottom of the screw 102 makes the engagement and replacement of pedicle screws more convenient. Doctors can select the appropriate insertion screw head 104 according to the needs of the operation and quickly change it during the operation. This design not only improves the efficiency of the operation, but also reduces the risk of operation interruption due to screw head damage or model mismatch, thereby ensuring the smooth progress of the operation.

[0042] The implementation principle of this embodiment is as follows: First, by screwing the second threaded seat 301 to the threaded groove 106, the second functional mechanism 3 is quickly installed on the top of the inserter 1 to replace the first functional mechanism 2 and realize the function switching.

[0043] The built-in power supply of the battery holder 302 powers the supplementary light 304 on the bottom of the mounting ring 303. The light emitted by the supplementary light 304 is projected along the axis of the screw 102, providing uniform and shadow-free illumination for the field of vision, which is especially suitable for delicate operations in the deep pedicle area.

[0044] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A surgical pedicle screw inserter, characterized in that: Includes an inserter (1), the inserter (1) includes a handle (101), the top of the handle (101) is provided with a mounting base (105), the top of the mounting base (105) is provided with a threaded groove (106), and a functional component (4) is screwed into the threaded groove (106). The functional component (4) includes a first functional mechanism (2), which includes a first threaded seat (201) and is screwed to a threaded groove (106). Two side grooves (202) are opened on both sides of the first threaded seat (201), and a rotating rod (204) is rotatably connected in the side groove (202) through a damping shaft (203).

2. The surgical pedicle screw inserter according to claim 1, characterized in that: The shape of the rotating rod (204) is adapted to the handle (101), and the rotating rod (204) fits against the handle (101).

3. The surgical pedicle screw inserter according to claim 1, characterized in that: The rotating rods (204) are configured as a pair, and the pair of rotating rods (204) are distributed in a mirror symmetric manner along the central longitudinal axis of the handle (101). Each rotating rod (204) is configured to provide an auxiliary torque by applying force with the thumb to enhance the circumferential rotation efficiency of the inserter (1).

4. The surgical pedicle screw inserter according to claim 1, characterized in that: The functional component (4) includes a second functional mechanism (3), which includes a battery holder (302). The bottom of the battery holder (302) is provided with a second threaded seat (301), and the second threaded seat (301) is screwed into a threaded groove (106).

5. The surgical pedicle screw inserter according to claim 4, characterized in that: The top surface of the battery holder (302) is provided with a mounting ring (303), and the bottom surface of the mounting ring (303) is surrounded by supplementary lights (304), which are used to provide surgical field illumination.

6. The surgical pedicle screw inserter according to claim 1, characterized in that: The bottom of the handle (101) is provided with a screw (102), and the outer circumferential surface of the screw (102) is provided with a plurality of U-shaped grooves (103) distributed at equal intervals along the circumferential direction, and the U-shaped grooves (103) form a ring array structure.

7. The surgical pedicle screw inserter according to claim 6, characterized in that: The bottom of the screw (102) is detachably connected to an insert screw head (104), which is used to engage the pedicle screw.

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