Neurosurgery retractor fixator and operation method thereof

Abstract

The neurosurgery retractor fixator comprises a positioning circular ring, the positioning circular ring is in threaded connection with a screwing shaft, and the screwing shaft is arranged on the upper surface of the positioning circular ring in a central symmetry mode with respect to the circle center of the positioning circular ring; before operation, the retractor fixator can rotate the retractor through the stepping motor to adapt to the shape of a real-time operation opening, the horizontal control rod can be telescopically adjusted through the horizontal guide rail to meet the operation habit of an operation operator, the stability in the traction process is facilitated, tissue damage is prevented, and the adaptability of the retractor fixator is enhanced; the retractor fixator can be quickly positioned and placed, is stable in structure, convenient to operate and simple in step, avoids interference in an operation, ensures the operation safety and improves the operation quality.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and particularly relates to a neurosurgical retractor fixator and an operation method thereof. Background Art

[0002] When the existing neurosurgical retractor fixator is in use, the fixation of the traction assembly and the manipulation assembly will cause the retractor fixator to be difficult to adapt to surgical openings of different shapes and surgical operation habits, and the operation process is complex, and the stability of the structure is insufficient. The Chinese patent discloses an "intelligent neurosurgical retractor fixator" with the application number "CN202210275185.1". By starting and controlling the electric telescopic rod, the electric telescopic rod drives the fixed block to rise and fall, and then drives the retractor to rise and fall. When the distance between the two retractors is inappropriate, at this time, rotate the fixed column to ensure that the pressing block is away from the X-shaped block. At this time, adjust the positions of the U-shaped block and the inverted L-shaped block on the rectangular plate. When adjusted to the appropriate position, then rotate the fixed column in the reverse direction to ensure that the pressing block presses against the X-shaped block to fix the U-shaped block and the inverted L-shaped block, and then adjust the distance between the retractors. That is, this retractor fixator can not only adjust the height of the retractor fixator, but also adjust the distance between the retractors. However, this retractor fixator lacks the adaptation and adjustment function between the traction assembly and the manipulation assembly, the adaptability of the retractor fixator is insufficient, and the operation steps are complex and the structure is unstable, which will affect the surgical quality. Summary of the Invention

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art, and provide a neurosurgical retractor fixator. Before operation, the retractor fixator can rotate the traction hook through a stepping motor to adapt to the real-time shape of the surgical opening, and can telescopically adjust the horizontal control rod through a horizontal guide rail to meet the operation habits of surgical operators, which is beneficial to the stability of the traction process, prevents tissue damage, and enhances the adaptability of the retractor fixator; the retractor fixator can be quickly positioned and placed, and has a stable structure, convenient operation, simple steps, avoids intraoperative interference, ensures surgical safety, and improves surgical quality.

[0004] The present invention also provides a neurosurgical retractor fixator having the above-mentioned one, including a positioning ring, a tightening shaft is threadedly connected to the positioning ring, and the tightening shaft is symmetrically centered about the center of the positioning ring on the upper surface of the positioning ring; a first operating arm and a second operating arm, the first operating arm is rotatably connected to the second operating arm through the tightening shaft, the front ends of the first operating arm and the second operating arm are both fixedly connected with stepping motors, the output ends of the stepping motors are fixedly connected with retractor hooks, the retractor hooks are located below the stepping motors, the rear ends of the first operating arm and the second operating arm are both fixedly connected with horizontal guide rails, a bidirectional motor is fixedly connected inside the horizontal guide rails, the bidirectional motor is located at one end of the horizontal guide rails close to the first operating arm and the second operating arm, the output end of the bidirectional motor is fixedly connected with a horizontal screw rod, the horizontal screw rod is threadedly connected with a horizontal slider, the horizontal slider is located inside the horizontal guide rails, a fixed block is fixedly connected to the upper surface of the horizontal slider, and a horizontal operating rod is fixedly connected to the rear surface of the fixed block.

[0005] According to a neurosurgical retractor fixator provided by the present invention, a silicone ring pad is fixedly connected to the lower surface of the positioning ring, and the inner and outer walls of the silicone ring pad are flush with the inner and outer walls of the positioning ring. This avoids damage to tissues by the retractor fixator and is conducive to safe use.

[0006] According to a neurosurgical retractor fixator provided by the present invention, a limiting handle is fixedly connected to the tightening shaft, and the limiting handle is located at the upper end and the side surface of the tightening shaft. This facilitates the limiting installation of the tightening shaft.

[0007] According to a neurosurgical retractor fixator provided by the present invention, installation grooves are provided on both the upper and lower surfaces of the first operating arm, the central position of the installation grooves is sleeved with the tightening shaft, the second operating arm abuts against the limiting handle, a communication groove is provided inside the second operating arm, the central position of the communication groove is sleeved with the tightening shaft, and the communication groove abuts against the installation groove. This is conducive to the stable rotation of the operating arm.

[0008] According to a neurosurgical retractor fixator provided by the present invention, a bushing is fixedly connected to the lower end of the stepping motor, and the bushing is sleeved with the retractor hook. This is conducive to the limiting and protection of the retractor hook.

[0009] According to a neurosurgical retractor fixator provided by the present invention, horizontal sliding grooves are provided on both the left and right inner walls of the horizontal guide rail. This facilitates the limiting installation of the horizontal slider.

[0010] According to a neurosurgical retractor fixator provided by the present invention, horizontal sliding rods are fixedly connected to both the left and right side surfaces of the horizontal slider, and the horizontal sliding rods slide in the horizontal sliding grooves. This is conducive to the stable movement of the horizontal slider.

[0011] A neurosurgical retractor fixator provided by the present invention, a control handle is fixedly connected to the rear end of the horizontal control rod, and a silica gel sleeve is sleeved on the control handle. This makes the operation of the retractor fixator more convenient.

[0012] An operation method of a neurosurgical retractor fixator provided by the present invention includes the above-mentioned neurosurgical retractor fixator and further includes the following operation steps:

[0013] S1. Positioning and placing: At the opening of the operation, place the retractor fixator well. The positioning ring of the retractor fixator will be placed at the opening, so that the operation opening is at the central position inside the positioning ring;

[0014] S2. Adaptation adjustment: Adjust the retractor fixator according to the shape of the operation opening and the habits of the surgical operator. The traction hook can be driven by a stepping motor to rotate and adjust to adapt to the shape of the operation opening, and the horizontal control rod can be driven by a horizontal guide rail to expand and contract to meet the habits of the surgical operator;

[0015] S3. Tissue retraction: The traction hook will extend into the operation opening. Rotate the first control arm and the second control arm through the horizontal control rod, so that the traction hook retracts the edge of the operation opening, and the edge of the operation opening will change with the retraction;

[0016] S4. Precise fixation: When the edge of the operation opening is retracted to the appropriate position, tighten the tightening shaft to lock the first control arm and the second control arm, and the traction hook will be fixed at the final retraction position, which is convenient for subsequent surgical operations.

[0017] Compared with the prior art, the neurosurgical retractor fixator provided by the present invention has the following beneficial effects:

[0018] First, before the operation, the retractor fixator can rotate the traction hook through a stepping motor to adapt to the real-time shape of the operation opening, and can adjust the expansion and contraction of the horizontal control rod through a horizontal guide rail to meet the operating habits of the surgical operator, which is beneficial to the stability of the retraction process, prevents tissue damage, and enhances the adaptability of the retractor fixator;

[0019] Second, the retractor fixator can be quickly positioned and placed, and has a stable structure, convenient operation, simple steps, avoids intraoperative interference, ensures surgical safety, and improves surgical quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following further illustrates the present invention in conjunction with the drawings and embodiments;

[0021] Figure 1 It is a schematic diagram of the overall structure of a neurosurgical retractor fixator of the present invention;

[0022] Figure 2Schematic top view structure diagram of a neurosurgical retractor fixator of the present invention;

[0023] Figure 3 Schematic partial sectional structure diagram of a neurosurgical retractor fixator of the present invention;

[0024] Figure 4 Schematic partial three-dimensional sectional structure diagram of a neurosurgical retractor fixator of the present invention.

[0025] Legend description:

[0026] 1. Positioning ring; 2. Silicone ring pad; 3. Bush; 4. Stepper motor; 5. Limit handle; 6. Second operating arm; 7. Communication groove; 8. First operating arm; 9. Bidirectional motor; 10. Fixed block; 11. Silicone sleeve; 12. Operating handle; 13. Horizontal operating rod; 14. Horizontal screw; 15. Horizontal slider; 16. Horizontal guide rail; 17. Installation groove; 18. Tightening shaft; 19. Retraction hook; 20. Horizontal slide bar; 21. Horizontal chute. Detailed implementation manners

[0027] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The role of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be construed as a limitation on the protection scope of the present invention.

[0028] Refer to Figure 1 and Figure 2 In an embodiment of a neurosurgical retractor fixator of the present invention, it includes a positioning ring 1. A silicone ring pad 2 is fixedly connected to the lower surface of the positioning ring 1. The inner and outer walls of the silicone ring pad 2 are flush with the inner and outer walls of the positioning ring 1. A tightening shaft 18 is threadedly connected to the positioning ring 1. The tightening shaft 18 is centrally symmetric about the center of the positioning ring 1 on the upper surface of the positioning ring 1. The tightening shaft 18 is fixedly connected to a limit handle 5. The limit handle 5 is located at the upper end and the side surface of the tightening shaft 18;

[0029] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4, the first operating arm 8 and the second operating arm 6, the first operating arm 8 is rotationally connected to the second operating arm 6 through a tightening shaft 18. Installation grooves 17 are provided on both the upper and lower surfaces of the first operating arm 8. The central position of the installation groove 17 is sleeved with the tightening shaft 18. The second operating arm 6 abuts against the limiting handle 5. A communication groove 7 is provided inside the second operating arm 6. The central position of the communication groove 7 is sleeved with the tightening shaft 18. The communication groove 7 abuts against the installation groove 17. Stepping motors 4 are fixedly connected to the front ends of both the first operating arm 8 and the second operating arm 6. The output end of the stepping motor 4 is fixedly connected with a pulling hook 19. The pulling hook 19 is located below the stepping motor 4. The lower end of the stepping motor 4 is fixedly connected with a bushing 3, and the bushing 3 is sleeved with the pulling hook 19. Horizontal guide rails 16 are fixedly connected to the rear ends of both the first operating arm 8 and the second operating arm 6. Horizontal sliding grooves 21 are provided on the inner walls of the left and right sides of the horizontal guide rail 16. A bidirectional motor 9 is fixedly connected inside the horizontal guide rail 16. The bidirectional motor 9 is located at one end of the horizontal guide rail 16 close to the first operating arm 8 and the second operating arm 6. The output end of the bidirectional motor 9 is fixedly connected with a horizontal screw rod 14. The horizontal screw rod 14 is threadedly connected with a horizontal slider 15. The horizontal slider 15 is located inside the horizontal guide rail 16. Horizontal sliding rods 20 are fixedly connected to the left and right side surfaces of the horizontal slider 15. The horizontal sliding rods 20 slide in the horizontal sliding grooves 21. The upper surface of the horizontal slider 15 is fixedly connected with a fixed block 10. The rear surface of the fixed block 10 is fixedly connected with a horizontal operating rod 13. The rear end of the horizontal operating rod 13 is fixedly connected with an operating handle 12, and the operating handle 12 is sleeved with a silica gel sleeve 11.

[0030] An operation method of a neurosurgical retractor fixator according to an embodiment of the present invention includes the above-mentioned neurosurgical retractor fixator and further includes the following operation steps:

[0031] S1. Positioning and placing: At the opening of the operation, place the retractor fixator well. The positioning ring 1 of the retractor fixator will be placed at the opening so that the operation opening is at the central position inside the positioning ring 1;

[0032] S2. Adaptation and adjustment: Adjust the retractor fixator according to the shape of the operation opening and the habits of the operation operator. The stepping motor 4 can drive the pulling hook 19 to rotate and adjust to adapt to the shape of the operation opening, and the horizontal guide rail 16 can drive the horizontal operating rod 13 to expand and contract to meet the habits of the operation operator;

[0033] S3. Tissue retraction: The pulling hook 19 will extend into the operation opening. Rotate the first operating arm 8 and the second operating arm 6 through the horizontal operating rod 13 so that the pulling hook 19 retracts the edge of the operation opening, and the edge of the operation opening will change with the retraction;

[0034] S4. Precise fixation: After the edges of the surgical opening are pulled to the appropriate positions, the tightening shaft 18 is tightened to lock the first operating arm 8 and the second operating arm 6. The retractor hook 19 will be fixed at the final retraction position, facilitating subsequent surgical operations.

[0035] Working principle: The neurosurgical retractor fixator is used to pull and fix the neurosurgical opening. The retractor fixator is placed at the surgical opening to make the surgical opening located at the central position inside the positioning ring 1. The retractor hook 19 is rotationally adjusted, and the horizontal control rod 13 is telescopically adjusted. The retractor hook 19 is inserted into the inside of the surgical opening. After the edges of the surgical opening are pulled to the appropriate positions by rotating the first operating arm 8 and the second operating arm 6 driven by the retractor hook 19 through the horizontal control rod 13, the tightening shaft 18 is tightened to lock the first operating arm 8 and the second operating arm 6, so that the retractor hook 19 is fixed at the final retraction position.

[0036] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can also be made without departing from the gist of the present invention.

Claims

1. A neurosurgical retractor fixator, characterized in that: include: A positioning ring (1), wherein the threaded connection of the positioning ring (1) is provided with a tightening shaft (18), and the tightening shaft (18) is symmetrically arranged on the upper surface of the positioning ring (1) about the center of the positioning ring (1); A first operating arm (8) and a second operating arm (6), wherein the first operating arm (8) is rotatably connected to the second operating arm (6) via a tightening shaft (18), the front ends of the first operating arm (8) and the second operating arm (6) are fixedly connected to a stepping motor (4), the output end of the stepping motor (4) is fixedly connected to a pulling hook (19), and the pulling hook (19) is located below the stepping motor (4), and the rear ends of the first operating arm (8) and the second operating arm (6) are fixedly connected to a horizontal guide rail (16), the interior of the horizontal guide rail (16) A bidirectional motor (9) is fixedly connected, and the bidirectional motor (9) is located at one end of the horizontal guide rail (16) close to the first operating arm (8) and the second operating arm (6). The output end of the bidirectional motor (9) is fixedly connected to a horizontal screw rod (14), and the horizontal screw rod (14) is threadedly connected to a horizontal slider (15). The horizontal slider (15) is located inside the horizontal guide rail (16). The upper surface of the horizontal slider (15) is fixedly connected to a fixed block (10), and the rear surface of the fixed block (10) is fixedly connected to a horizontal operating rod (13).

2. A neurosurgical retractor fixator according to claim 1, characterized in that: A silicone ring pad (2) is fixedly connected to the lower surface of the positioning ring (1), and the inner and outer walls of the silicone ring pad (2) are flush with the inner and outer walls of the positioning ring (1).

3. A neurosurgical retractor fixator according to claim 1, characterized in that: The tightening shaft (18) is fixedly connected to a limiting handle (5), and the limiting handle (5) is located on the upper end and side surface of the tightening shaft (18).

4. A neurosurgical retractor fixator according to claim 1, characterized in that: The upper and lower surfaces of the first operating arm (8) are both provided with mounting grooves (17), the center position of the mounting groove (17) is sleeved with the tightening shaft (18), the second operating arm (6) is in contact with the limiting handle (5), a connecting groove (7) is provided inside the second operating arm (6), the center position of the connecting groove (7) is sleeved with the tightening shaft (18), and the connecting groove (7) is in contact with the mounting groove (17).

5. A neurosurgical retractor fixator according to claim 1, characterized in that: The lower end of the stepper motor (4) is fixedly connected to a shaft sleeve (3), and the shaft sleeve (3) is sleeved with a pulling hook (19).

6. A neurosurgical retractor fixator according to claim 1, characterized in that: The left and right inner walls of the horizontal guide rail (16) are both provided with horizontal sliding grooves (21).

7. A neurosurgical retractor fixator according to claim 1, characterized in that: The left and right side surfaces of the horizontal sliding block (15) are both fixedly connected with a horizontal sliding rod (20), and the horizontal sliding rod (20) slides in a horizontal sliding groove (21).

8. The neurosurgical retractor fixator according to claim 1, characterized in that: The rear end of the horizontal operating rod (13) is fixedly connected to a control handle (12), and the control handle (12) is sleeved with a silicone sleeve (11).

9. A method for operating a neurosurgical retractor fixator, characterized in that: A neurosurgical hook fixator according to any one of claims 1 to 8, further comprising the following operating steps: S1. Positioning and placement: The retractor is placed at the surgical opening, and the positioning ring (1) of the retractor is placed at the opening so that the surgical opening is at the center of the positioning ring (1); S2. Adaptive adjustment: the retractor fixer is adjusted according to the shape of the surgical opening and the habits of the surgical operator. The stepper motor (4) can drive the retractor hook (19) to rotate and adjust to adapt to the shape of the surgical opening. The horizontal guide rail (16) can drive the horizontal joystick (13) to extend and retract to meet the habits of the surgical operator. S3, tissue retraction: the retraction hook (19) will extend into the interior of the surgical opening, and the first operating arm (8) and the second operating arm (6) will be rotated by the horizontal operating rod (13), so that the retraction hook (19) will retract the edge of the surgical opening, and the edge of the surgical opening will change with the retraction; S4. Precise fixation: When the edge of the surgical opening is pulled to a suitable position, the tightening shaft (18) is tightened to lock the first operating arm (8) and the second operating arm (6), and the pulling hook (19) is fixed at the final pulling position to facilitate subsequent surgical operations.

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