A neurosurgical clinical spreader

Abstract

This utility model discloses a retractor for neurosurgical clinical use, relating to the technical field of clinical instruments. The utility model includes a linkage block; two symmetrically arranged rotating cranks are located on the left and right sides of the linkage block, with abutting retractor plates fixed to the lower ends of the two cranks. A vertical rod is fixed to the upper surface of the linkage block, and a pull ring plate is sleeved on the vertical rod. Two symmetrically arranged pull ropes are fixed to the lower surface of the pull ring plate, with connecting blocks fixed to the other ends of each pull rope and fixed to the rotating cranks. A vertical plate is fixed to the lower part of the side wall of the linkage block, and arc columns are fixed to the left and right ends of the vertical plate. Arc rods are provided at positions opposite to the arc columns on the two rotating cranks. Springs sleeved on the arc rods are fixed to the sides of the limiting plate. This utility model achieves rapid and synchronous expansion of the two rotating cranks by moving the pull ring plate upwards, allowing for easy one-handed operation. Simultaneously, the springs allow for quick control of the retractor's reset, facilitating subsequent operations.

Description

Technical Field

[0001] This utility model belongs to the technical field of clinical instruments, and in particular relates to a retractor for neurosurgical clinical use. Background Technology

[0002] Neurosurgery studies the human nervous system, such as the brain, spinal cord, and peripheral nervous system, as well as related appendages such as the skull, scalp, cerebral blood vessels, and meninges, including injuries, inflammation, tumors, deformities, and certain genetic metabolic disorders or functional disorders. As one of the most challenging surgical procedures, neurosurgery requires the use of retractors to help open the incision during the operation in order to maintain a high degree of concentration.

[0003] However, most existing retractors use a scissor-type mechanism for operation, which cannot guarantee that the hand remains in the same position for an extended period, thus affecting the retraction effect. Furthermore, the retractor cannot automatically reset immediately after use, thus impacting subsequent operations. Therefore, we provide a neurosurgical clinical retractor to address these problems. Utility Model Content

[0004] The purpose of this invention is to provide a retractor for clinical neurosurgery. By moving the pull ring plate upward, it can quickly and synchronously drive two rotating cranks to expand the retractor, and can be easily operated with one hand. At the same time, the use of a spring can quickly control the retractor to return to its original position, which is convenient for subsequent operations.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a retractor for clinical use in neurosurgery, comprising a linkage block; two symmetrically arranged rotating cranks are located on the left and right sides of the linkage block, and the lower ends of the two rotating cranks are fixed with abutting retracting plates; a vertical rod is fixed to the upper end face of the linkage block, and a pull ring plate is sleeved on the vertical rod; two symmetrically arranged pull ropes are fixed to the lower end face of the pull ring plate, and the other end of each pull rope is fixed with a connecting block that is fixedly connected to the rotating crank; a vertical plate is fixed to the lower part of the side wall of the linkage block, and an arc column is fixed to the left and right end faces of the vertical plate; an arc rod is set at the position of the two rotating cranks relative to the arc column; a limit plate is fixed to the end face of each arc rod, and a spring sleeved on the arc rod is fixed to the side of each limit plate.

[0007] The present invention is further configured such that two annular openings are provided on the surface of the linkage block and arranged symmetrically in front and behind, and the opposite end faces above the two rotating cranks are each fixed with a collar fitted into the annular opening.

[0008] The present invention is further configured such that a positioning cylinder is fixed on the upper end face of the rotating crank, and a square bar is fixed on the vertical rod located below the pull ring plate.

[0009] The present invention is further configured such that each of the square bars has a through hole at the position corresponding to the pull rope, and the pull rope passes through the corresponding through hole and the inside of the positioning cylinder.

[0010] The present invention is further configured such that a baffle is fixed on the upper end face of the vertical rod, and the diameter of the baffle is larger than the inner diameter of the pull ring plate.

[0011] The present invention is further configured such that each arc column has an arc hole inside, and the end face of the arc column has a limiting hole that communicates with the inside of the arc hole, and the diameter of the arc hole is larger than the diameter of the limiting hole.

[0012] The present invention is further configured such that the arc rod slides through the corresponding limiting hole, the spring and the limiting plate are respectively slidably disposed in the arc hole, and an inclined plate is fixed between the arc rod and the rotating crank.

[0013] This utility model has the following beneficial effects:

[0014] 1. Control the pull ring plate to move upward, which will pull the pull rope, thereby driving the two rotating cranks to rotate in opposite directions. At this time, the spreading plate will slightly stretch the skin, thus achieving rapid and synchronous expansion of the two rotating cranks. It can be easily operated with one hand. At the same time, the hand is controlled by clenching the fist, which increases the duration of the hand position and avoids affecting the spreading effect.

[0015] 2. The two rotating cranks move in opposite directions, which in turn causes the limiting plate to compress the spring. Therefore, when the user loosens the pull ring plate, the spring will push the limiting plate to reset, ensuring that the spreader can be used directly afterward.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a retractor used in neurosurgery.

[0019] Figure 2 This is a structural diagram of the rotating crank in this utility model.

[0020] Figure 3 This is a structural diagram of the pull ring plate and pull rope in this utility model.

[0021] Figure 4 This is a structural diagram of the linkage block in this utility model.

[0022] Figure 5 This is a diagram of the internal structure of the arc column in this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1-Linkage block, 101-Vertical rod, 102-Square bar, 103-Baffle, 104-Through hole, 105-Ring opening, 106-Upright plate, 107-Arc column, 108-Limiting hole, 109-Arc hole, 2-Pull ring plate, 201-Pull rope, 202-Connecting block, 3-Rotating crank, 301-Spreading plate, 302-Loop ring, 303-Positioning cylinder, 304-Inclined plate, 305-Arc rod, 306-Spring, 307-Limiting plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] Please see Figures 1 to 5 This utility model is a retractor for clinical use in neurosurgery. By moving the pull ring plate 2 upward, it can quickly and synchronously drive the two rotating cranks 3 to expand, and can be easily operated with one hand. At the same time, the use of spring 306 can quickly control the retractor to return to its original position, which is convenient for subsequent operations.

[0028] Specifically, the linkage block 1 has two symmetrically arranged rotating cranks 3 on its left and right sides. The lower ends of the two rotating cranks 3 are fixed with abutting support plates 301. The upper surface of the linkage block 1 is fixed with a vertical rod 101. A pull ring plate 2 is sleeved on the vertical rod 101. The lower surface of the pull ring plate 2 is fixed with two symmetrically arranged pull ropes 201. The other end of each pull rope 201 is fixed with a connecting block 202 that is fixedly connected to the rotating cranks 3. The lower part of the side wall of the linkage block 1 is fixed with a vertical plate 106. The left and right ends of the vertical plate 106 are both fixed with arc columns 107. The two rotating cranks 3 are each positioned relative to the arc columns 107 with arc rods 305. The end face of each arc rod 305 is fixed with a limit plate 307. The side of each limit plate 307 is fixed with a spring 306 that is sleeved on the arc rod 305.

[0029] The operation process of this embodiment is as follows: With the above structure, when it is necessary to open the cut skin, the pull ring plate 2 is moved upward. The pull ring plate 2 will pull the pull rope 201, thereby driving the two rotating cranks 3 to rotate in opposite directions. At this time, the opening plate 301 will be driven to slightly open the skin. At the same time, the two rotating cranks 3 will be driven in opposite directions, which will then drive the limiting plate 307 to compress the spring 306. Therefore, when the user releases the pull ring plate 2, the spring 306 will push the limiting plate 307 to reset, ensuring that the opening device can be used directly in the future.

[0030] Example 2

[0031] Please see Figure 2 , Figure 4 and Figure 5 Based on embodiment 1, the limiting plate 307 is limited by the limiting hole 108, ensuring that the spring 306 and the limiting plate 307 can be stably positioned in the arc hole 109.

[0032] Specifically, the surface of the linkage block 1 has two symmetrically arranged annular openings 105. The opposite end faces of the two rotating cranks 3 are each fixed with a collar 302 that fits into the annular opening 105. The interior of the arc column 107 is provided with an arc hole 109. The end face of the arc column 107 is provided with a limiting hole 108 that communicates with the interior of the arc hole 109. The diameter of the arc hole 109 is larger than the diameter of the limiting hole 108. The arc rod 305 slides through the corresponding limiting hole 108. The spring 306 and the limiting plate 307 are respectively slidably arranged in the arc hole 109. An inclined plate 304 is fixed between the arc rod 305 and the rotating crank 3.

[0033] The operation process of this embodiment is as follows: When the rotating crank 3 is driven to rotate, the rotating crank 3 will drive the collar 302 to rotate inside the ring opening 105. At the same time, when the rotating crank 3 rotates, it will drive the arc rod 305 to rotate in the arc hole 109, thereby compressing the spring 306. At this time, the limiting hole 108 blocks the limiting plate 307, which can prevent the spring 306, the arc rod 305 and the arc column 107 from disengaging.

[0034] Example 3

[0035] Please see Figure 2 , Figure 3 and Figure 4 Based on Example 1, the positioning cylinder 303 and the through hole 104 are used to limit the pull rope 201 and prevent the pull rope 201 from shaking.

[0036] Specifically, a positioning cylinder 303 is fixed to the upper end face of the rotating crank 3, and a square bar 102 is fixed to the vertical rod 101 located below the pull ring plate 2. The square bar 102 is provided with through holes 104 at the positions corresponding to the pull rope 201. The pull rope 201 passes through the corresponding through holes 104 and the interior of the positioning cylinder 303. A baffle 103 is fixed to the upper end face of the vertical rod 101, and the diameter of the baffle 103 is larger than the inner diameter of the pull ring plate 2.

[0037] The operation process of this embodiment is as follows: when the pull ring plate 2 is controlled to move upward, the pull ring plate 2 will drive the pull rope 201 to slide in the through hole 104 and the positioning cylinder 303. The pull ring plate 2 is limited by the baffle 103 to ensure that the pull ring plate 2 will not come out from the position above the vertical rod 101. At the same time, the pull rope 201 is limited by the positioning cylinder 303 and the through hole 104 to prevent the pull rope 201 from shaking randomly.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A neurosurgical retractor for clinical use, comprising a linkage block (1); characterized in that: The linkage block (1) has two symmetrically arranged rotating cranks (3) on its left and right sides. The lower ends of the two rotating cranks (3) are fixed with abutting support plates (301). The upper end of the linkage block (1) is fixed with a vertical rod (101). A pull ring plate (2) is sleeved on the vertical rod (101). The lower end of the pull ring plate (2) is fixed with two symmetrically arranged pull ropes (201). The other end of each pull rope (201) is fixed with a rod that is fixed to the rotating crank (3). The connecting block (202) is fixed. The lower part of the side wall of the linkage block (1) is fixed with a vertical plate (106). The left and right end faces of the vertical plate (106) are both fixed with arc columns (107). The two rotating cranks (3) are both provided with arc rods (305) at the positions of the arc columns (107). The end faces of the arc rods (305) are all fixed with limit plates (307). The side of the limit plates (307) is fixed with springs (306) sleeved on the arc rods (305).

2. The neurosurgical retractor according to claim 1, characterized in that, The linkage block (1) has two ring openings (105) arranged symmetrically in front and behind. The opposite end faces above the two rotating cranks (3) are fixed with collars (302) respectively fitted into the ring openings (105).

3. The neurosurgical retractor according to claim 1, characterized in that, The upper end face of the rotating crank (3) is fixed with a positioning cylinder (303), and a square bar (102) is fixed on the vertical rod (101) located below the pull ring plate (2).

4. A neurosurgical retractor for clinical use according to claim 3, characterized in that, Each of the square bars (102) has a through hole (104) at the position corresponding to the pull rope (201), and the pull rope (201) passes through the corresponding through hole (104) and the inside of the positioning cylinder (303).

5. A neurosurgical retractor for clinical use according to claim 4, characterized in that, A baffle (103) is fixed to the upper end face of the vertical rod (101), and the diameter of the baffle (103) is larger than the inner diameter of the pull ring plate (2).

6. A neurosurgical retractor for clinical use according to claim 1, characterized in that, Each of the arc columns (107) has an arc hole (109) inside. The end face of the arc column (107) has a limiting hole (108) that communicates with the inside of the arc hole (109). The diameter of the arc hole (109) is larger than the diameter of the limiting hole (108).

7. A neurosurgical retractor for clinical use according to claim 6, characterized in that, The arc rod (305) slides through the corresponding limiting hole (108) and the spring (306) and the limiting plate (307) are respectively slidably arranged in the arc hole (109). An inclined plate (304) is fixed between the arc rod (305) and the rotating crank (3).

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