A retractor for neurosurgery

Abstract

The present invention belongs to the technical field of medical devices, and in particular to a retractor for neurosurgery, comprising a base plate, the upper surface of which is fixedly connected with a slide rod and a motor respectively; the present invention, through the arrangement of the motor, the first threaded rod, the first threaded tube, the slide rod and the sliding sleeve, when the motor rotates, the first threaded rod is driven to rotate, and under the limiting action of the slide rod and the sliding sleeve, the first threaded tube is displaced on the first threaded rod, so that the distance from the crossbeam and the paddle to the patient's surgical site can be adjusted, which is convenient for use; through the arrangement of the second handle, movable parts, gears, teeth and paddles, etc., the second handle is turned, the second handle drives the gear to rotate, the gear and the teeth are meshed and connected, and the rotation of the gear adjusts the distance between the two movable parts, thereby expanding the incision, and the doctor does not need to hold the device until the end of the operation, thereby improving the stability of the device and reducing the doctor's fatigue.

Description

Technical Field

[0001] The invention belongs to the technical field of medical instruments, and in particular relates to a retractor for neurosurgery. Background Art

[0002] Neurosurgery is a branch of surgery. It is a high-level, sophisticated and cutting-edge discipline that uses unique neurosurgery research methods to study the human nervous system, such as the brain, spinal cord and peripheral nervous system, and its related ancillary structures, such as the skull, scalp, cerebral blood vessels and meninges, for damage, inflammation, tumors, malformations and certain genetic metabolic disorders or functional disorders, such as the etiology and pathogenesis of epilepsy, Parkinson's disease, neuralgia and other diseases, and explore new diagnosis, treatment and prevention technologies. When performing neurosurgery skull or spine surgery, it is often necessary to retract the skin and muscle tissue. At this time, a retractor is needed to assist the surgery. The retractor can be used to retract the tissue and expose the surgical field for easy exploration and operation. However, the expansion of the incision currently requires the assistance of other staff, which is very inconvenient. For this reason, we propose a retractor for neurosurgery. Summary of the invention

[0003] In order to solve the problems raised in the above background technology, the present invention provides a retractor for neurosurgery, which has the characteristic of simple operation.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a retractor for neurosurgery, comprising a base plate, the upper surface of the base plate is respectively fixedly connected to a slide rod and a motor, the output end of the motor is fixedly connected to a first threaded rod, the first threaded rod is threadedly connected to a first threaded tube, the slide rod is slidably connected to a sliding sleeve, the outer surface of the sliding sleeve is fixedly connected to the outer surface of the first threaded tube, one side of the first threaded tube is fixedly connected to a crossbeam, the crossbeam is provided with a first limiting groove and a slide groove, the slide groove is fixedly connected to a first bearing, and the first bearing is movable inside the first bearing. A first rotating shaft is passed through, and a second threaded rod is fixedly connected to the other end of the first rotating shaft. The right end of the second threaded rod passes through the slide groove and is located on the right side of the slide groove. A second threaded cylinder is threadedly connected to the second threaded rod, and a connecting cylinder is fixedly connected to the outer surface of the second threaded cylinder. A movable part is slidably connected in the connecting cylinder. There are two movable parts, and teeth are provided on the sides where the two movable parts are close to each other. A second bearing is fixedly connected in the connecting cylinder, and a second rotating shaft is movably passed through the second bearing. A gear is provided on the second rotating shaft, and the gear is meshed with the teeth.

[0005] Preferably, the first limiting groove is located above the slide groove, and the first limiting groove is connected to the slide groove, a first limiting block is slidably connected in the first limiting groove, and one side of the first limiting block is fixedly connected to the outer surface of the second threaded cylinder.

[0006] Preferably, a second limiting groove is provided in the connecting tube, a second limiting block is slidably connected in the second limiting groove, one side of the second limiting block is fixedly connected to one side of the movable member, and a paddle is fixedly connected to the bottom end of the movable member.

[0007] Preferably, the right end of the second threaded rod is fixedly connected to the first handle, the second rotating shaft passes through the connecting tube and is fixedly connected to the second handle, a controller is provided on one side of the sliding sleeve, the controller is electrically connected to the external power supply and the motor through wires, a threaded through hole is provided on the second handle, a second fixing bolt is threadedly connected in the threaded through hole, and one end of the second fixing bolt overlaps the surface of the connecting tube.

[0008] Preferably, fixing nuts are fixedly connected to both sides of the base plate, first fixing bolts are threadedly connected inside the two fixing nuts, and a stabilizing plate is fixedly connected to the bottom end of the first fixing bolts.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] The present invention, through the arrangement of a motor, a first threaded rod, a first threaded cylinder, a sliding rod and a sliding sleeve, when the motor rotates, it drives the rotation of the first threaded rod, and under the limiting action of the sliding rod and the sliding sleeve, the first threaded cylinder is displaced on the first threaded rod, so that the distance from the crossbeam and the paddle to the patient's surgical site can be adjusted, which is convenient for use. Through the arrangement of a second handle, a movable part, a gear, teeth and a paddle, the second handle is turned, the second handle drives the gear to rotate, the gear and the teeth are meshed and connected, and the rotation of the gear adjusts the distance between the two movable parts, thereby expanding the incision, and the doctor does not need to hold the device in his hand until the end of the operation, which improves the stability of the device and reduces the doctor's fatigue. Through the arrangement of the first handle, the second threaded rod, the second threaded cylinder, the second limiting groove and the second limiting block, etc., the horizontal position of the paddle can be adjusted, which is convenient for expanding the incisions at different positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 It is a structural schematic diagram of the present invention;

[0013] Figure 2 It is a schematic diagram of the structure enlarged at A in the present invention;

[0014] Figure 3 It is a schematic structural diagram of a front cross-section of the present invention;

[0015] Figure 4 It is a connection diagram of the circuit of the present invention;

[0016] In the figure: 1, base plate; 2, slide rod; 3, motor; 4, first threaded rod; 5, sleeve; 6, controller; 7, first threaded cylinder; 8, first limiting groove; 9, first limiting block; 10, second threaded cylinder; 11, second threaded rod; 12, slide groove; 13, cross beam; 14, paddle; 15, movable part; 16, connecting cylinder; 17, gear; 18, second limiting block; 19, teeth; 20, second limiting groove; 21, fixing nut; 22, first fixing bolt; 23, pin. DETAILED DESCRIPTION

[0017] 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

[0018] See also Figure 1-4The present invention provides the following technical solutions: A retractor for neurosurgery, comprising a base plate 1, wherein the upper surface of the base plate 1 is respectively fixedly connected with a slide bar 2 and a motor 3, wherein the motor 3 is arranged to drive the rotation of a first threaded rod 4 when the motor 3 rotates, and under the limiting action of the slide bar 2 and the sliding sleeve 5, a first threaded cylinder 7 is displaced on the first threaded rod 4, thereby adjusting the distance between the cross beam 13 and the paddle 14 and the surgical site of the patient, which is convenient for use, and the output end of the motor 3 is fixedly connected with the first threaded rod 4, wherein the first threaded rod 4 is threadedly connected with a first threaded cylinder 7, a sliding sleeve 5 is slidably connected to the sliding rod 2, the outer surface of the sliding sleeve 5 is fixedly connected to the outer surface of the first threaded cylinder 7, a crossbeam 13 is fixedly connected to one side of the first threaded cylinder 7, a first limiting groove 8 and a sliding groove 12 are opened on the crossbeam 13, a first bearing is fixedly connected in the sliding groove 12, a first rotating shaft is movably penetrated in the first bearing, a second threaded rod 11 is fixedly connected to the other end of the first rotating shaft, the right end of the second threaded rod 11 passes through the sliding groove 12 and is located on the right side of the sliding groove 12 On the side, the second threaded rod 11 is threadedly connected with a second threaded barrel 10. By setting the first handle, the second threaded rod 11, the second threaded barrel 10, the second limiting groove 20 and the second limiting block 18, the horizontal position of the paddle 14 can be adjusted to facilitate the expansion of the incisions at different positions. The outer surface of the second threaded barrel 10 is fixedly connected with a connecting barrel 16, and a movable part 15 is slidably connected in the connecting barrel 16. There are two movable parts 15, and the two movable parts 15 are each provided with teeth 19 on the side close to each other. A second bearing is fixedly connected in the connecting tube 16, and a second rotating shaft is movably provided in the second bearing. The second rotating shaft and the second bearing are not drawn in the figure. A gear 17 is provided on the second rotating shaft, and the gear 17 is meshed and connected with the teeth 19. Through the arrangement of the second handle, the movable part 15, the gear 17, the teeth 19 and the paddle 14, the second handle is turned, and the second handle drives the gear 17 to rotate, and the gear 17 is meshed and connected with the teeth 19. The rotation of the gear 17 adjusts the distance between the two movable parts 15, thereby expanding the incision.

[0019] Specifically, the first limiting groove 8 is located above the slide groove 12, and the first limiting groove 8 is connected to the slide groove 12, a first limiting block 9 is slidably connected in the first limiting groove 8, and one side of the first limiting block 9 is fixedly connected to the outer surface of the second threaded tube 10.

[0020] Specifically, a second limiting groove 20 is provided in the connecting tube 16, and a second limiting block 18 is slidably connected in the second limiting groove 20. One side of the second limiting block 18 is fixedly connected to one side of the movable part 15. A paddle 14 is fixedly connected to the bottom end of the movable part 15. The setting of the paddle 14 facilitates the support of the incision. The setting of the second limiting groove 20 and the second limiting block 18 can limit the movable part 15 under their joint action, thereby increasing the stability of the movable part 15 during movement.

[0021] Specifically, the right end of the second threaded rod 11 is fixedly connected to the first handle, the second rotating shaft passes through the connecting tube 16 and is fixedly connected to the second handle, a controller 6 is arranged on one side of the sliding sleeve 5, the controller 6 is electrically connected to the external power supply and the motor 3 through wires, a threaded through hole is opened on the second handle, a second fixing bolt 23 is threadedly connected in the threaded through hole, one end of the second fixing bolt overlaps with the surface of the connecting tube 16, the controller 6 can be a conventional known device such as a computer for control, the setting of the controller 6 facilitates the control of the working state of the motor 3, the setting of the second fixing bolt 23 makes one end of the second fixing bolt 23 overlap with the connecting tube 16, which can prevent the incision from driving the movement of the movable part 15 under the action of tension.

[0022] Specifically, fixing nuts 21 are fixedly connected on both sides of the base plate 1, and first fixing bolts 22 are threadedly connected in the two fixing nuts 21. The bottom end of the first fixing bolt 22 is fixedly connected to a stabilizing plate. Through the arrangement of the first fixing bolt 22, the fixing nut 21 and the stabilizing plate, the first fixing bolt 22 is screwed, and the first fixing bolt 22 moves in the fixing nut 21 toward the ground until the stabilizing plate and the ground overlap, thereby increasing the stability of the device during use.

[0023] Working principle and use process of the present invention: When using the present invention, the device is moved to a place where it is needed, and then the first fixing bolt 22 is screwed. The first fixing bolt 22 moves in the fixing nut 21 toward the ground until the stabilizing plate and the ground are overlapped, thereby increasing the stability of the device when in use. Then the first handle is screwed, and the first handle drives the second threaded rod 11 to rotate. The rotation of the second threaded rod 11 causes the second threaded cylinder 10 to displace on its surface. The movement of the second threaded cylinder 10 drives the movement of the connecting cylinder 16 and the paddle 14, thereby adjusting the horizontal position of the paddle 14, which is convenient for expanding the incisions at different positions. After the adjustment is completed, the operation of the motor 3 is controlled by the controller 6. When the motor 3 rotates, it drives the rotation of the first threaded rod 4. Under the limiting action of the rod 2 and the sliding sleeve 5, the first threaded tube 7 is displaced on the first threaded rod 4, so that the distance from the cross beam 13 and the paddle 14 to the patient's surgical site can be adjusted until the paddle 14 corresponds to the incision. After that, the second handle is turned, and the second handle drives the gear 17 to rotate. The gear 17 is meshed and connected with the teeth 19. The rotation of the gear 17 adjusts the distance between the two movable parts 15. The movement of the movable part 15 drives the movement of the paddle 14. The paddle 14 supports the incision, and then one end of the second fixing bolt 23 is overlapped with the connecting tube 16, which can avoid the incision driving the movement of the movable part 15 under the action of tension. In addition, the doctor does not need to hold the device in his hand until the end of the operation, which improves the stability of the device, reduces the doctor's fatigue, and is easy to use.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A retractor for neurosurgery, comprising a base plate (1), characterized in that: The upper surface of the bottom plate (1) is respectively fixedly connected with a slide rod (2) and a motor (3); an output end of the motor (3) is fixedly connected with a first threaded rod (4); a first threaded tube (7) is threadedly connected to the first threaded rod (4); a sliding sleeve (5) is slidably connected to the slide rod (2); an outer surface of the sliding sleeve (5) is fixedly connected to an outer surface of the first threaded tube (7); a cross beam (13) is fixedly connected to one side of the first threaded tube (7); a first limiting groove (8) and a slide groove (12) are provided on the cross beam (13); a first bearing is fixedly connected in the slide groove (12); a first rotating shaft is movably inserted in the first bearing; the other end of the first rotating shaft is fixedly connected to A second threaded rod (11) is connected, the right end of the second threaded rod (11) passes through the slide groove (12) and is located on the right side of the slide groove (12), the second threaded rod (11) is threadedly connected to a second threaded cylinder (10), the outer surface of the second threaded cylinder (10) is fixedly connected to a connecting cylinder (16), a movable part (15) is slidably connected in the connecting cylinder (16), the number of the movable parts (15) is two, and teeth (19) are provided on the sides of the two movable parts (15) that are close to each other, a second bearing is fixedly connected in the connecting cylinder (16), a second rotating shaft is movably passed through the second bearing, a gear (17) is provided on the second rotating shaft, and the gear (17) The first limiting groove (8) is meshed with the teeth (19), the first limiting groove (8) is located above the slide groove (12), and the first limiting groove (8) is connected to the slide groove (12), a first limiting block (9) is slidably connected in the first limiting groove (8), one side of the first limiting block (9) is fixedly connected with the outer surface of the second threaded tube (10), a second limiting groove (20) is provided in the connecting tube (16), a second limiting block (18) is slidably connected in the second limiting groove (20), one side of the second limiting block (18) is fixedly connected to one side of the movable member (15), the bottom end of the movable member (15) is fixedly connected with a paddle (14), and the second threaded rod (11) is fixedly connected to the second threaded rod (11). ) is fixedly connected to the right end of the first handle, the second rotating shaft passes through the connecting tube (16) and is fixedly connected to the second handle, a controller (6) is arranged on one side of the sliding sleeve (5), and the controller (6) is electrically connected to the external power supply and the motor (3) through wires, a threaded through hole is opened on the second handle, and a second fixing bolt (23) is threadedly connected in the threaded through hole, one end of the second fixing bolt overlaps the surface of the connecting tube (16), and fixing nuts (21) are fixedly connected to both sides of the bottom plate (1), and the first fixing bolts (22) are threadedly connected in the two fixing nuts (21), and the bottom end of the first fixing bolt (22) is fixedly connected to a stabilizing plate.

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