Constant force traction device for cervical spine surgery

Abstract

The utility model relates to a kind of cervical vertebra surgery constant force traction device, including square tube, transverse guide rod, sliding block, front and rear guide rod, height adjusting mechanism, surgical headstock connecting mechanism, pulley block, traction rope and counterweight;Two transverse guide rods are fixedly connected between two square tubes, two transverse guide rods are arranged in parallel;Two lateral sliding holes that cooperate with transverse guide rod are equipped in the lower end of sliding block, two transverse guide rods are slidably arranged in two lateral sliding holes, knob is connected in the bottom of sliding block;Two front and rear sliding holes that cooperate with front and rear guide rod are equipped in the upper end of sliding block, two front and rear guide rods are slidably arranged in two front and rear sliding holes, the other end of front and rear guide rod is fixedly connected on height adjusting mechanism;Pulley block is fixedly connected in the upper end edge of sliding block, one end of traction rope is connected on height adjusting mechanism, the other end of traction rope is connected on counterweight by pulley block;Surgical headstock connecting mechanism is connected in front of height adjusting mechanism.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a constant force traction device for cervical spine surgery. Background Technology

[0002] The cervical spine, generally referring to the cervical vertebrae, is located below the head and above the thoracic spine. It is the smallest segment of the spinal column, but also the most flexible, with the highest frequency of movement and the greatest load-bearing capacity, making its care and maintenance crucial. Groups with poor posture, those who spend long hours looking down while reading, and office workers are prone to mild cervical spine problems such as mental fatigue, upper limb weakness, and shoulder and back pain due to maintaining a single cervical spine position for extended periods.

[0003] Cervical spondylosis is a common orthopedic disease. Among them, cervical spondylotic myelopathy, cervical radiculopathy, and cervical radiculopathy can be treated with anterior cervical decompression or resection surgery. Before surgery, a traction device is used to pull the fascia, ligaments, periosteum, blood vessels, and neck muscles laterally.

[0004] Existing cervical traction devices are not convenient for adjusting the height, front-back, and left-right position of the head according to the patient's cervical flexion and extension, resulting in a limited range of applications and high costs.

[0005] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Utility Model Content

[0006] The purpose of this invention is to provide a constant force traction device for cervical spine surgery, which improves user comfort, is easy to operate, and facilitates surgery for medical staff.

[0007] This utility model provides a constant force traction device for cervical spine surgery, including a square tube, a transverse guide rod, a slider, front and rear guide rods, a height adjustment mechanism, a surgical head frame connection mechanism, a pulley system, a traction rope, and a counterweight. Two square tubes are arranged parallel and spaced apart. Two transverse guide rods are fixedly connected between the two square tubes, and the two transverse guide rods are arranged parallel to each other. Two transverse sliding holes that mate with the transverse guide rods are provided at the lower end of the slider, and the two transverse guide rods are slidably inserted into the two transverse sliding holes. A knob for locking the slider is connected to the bottom of the slider. Two front and rear sliding holes that mate with the front and rear guide rods are provided at the upper end of the slider, and the two front and rear guide rods are slidably inserted into the two front and rear sliding holes. The other end of the front and rear guide rods is fixedly connected to the height adjustment mechanism. The pulley system is fixedly connected to the upper edge of the slider. One end of the traction rope is connected to the height adjustment mechanism, and the other end of the traction rope passes around the pulley system and is connected to the counterweight. The surgical head frame connection mechanism is connected to the front of the height adjustment mechanism.

[0008] Using the above technical solution, during assembly, the surgical head frame is connected to the surgical head frame connecting mechanism; then, the cervical spine surgery constant force traction device is connected to the operating table; during use, the patient is first laid face down on the operating table, with their head fixed on the surgical head frame. The height is adjusted using the height adjustment mechanism, and the left and right positions are adjusted by sliding the slider on the horizontal guide rod, and locked by the knob. The front and rear guide rods will slide in the front and rear sliding holes; then, according to the patient's actual needs, corresponding counterweights are connected to the traction rope, so that the traction rope exerts a certain tension on the patient's head at all times. By pulling the patient's head, the patient's curved cervical spine can be corrected.

[0009] Furthermore, the height adjustment mechanism includes a longitudinal guide rod, an upper adjustment block, a lower adjustment block, a middle sliding block, a handle, and a screw; the surgical head frame connection mechanism is fixedly connected to the front of the middle sliding block, and a through threaded hole is provided on the middle sliding block, through which the screw is connected; the upper end of the screw is rotatably connected to the upper adjustment block, and the lower end of the screw passes through the lower adjustment block and is connected to the handle; through longitudinal sliding holes are provided on both the left and right sides of the middle sliding block, and the longitudinal guide rod is slidably inserted through the two longitudinal sliding holes; the upper ends of the two longitudinal guide rods are fixedly connected to the upper adjustment block, and the lower ends of the two longitudinal guide rods are fixedly connected to the lower adjustment block; the traction rope and the front and rear guide rods are connected to the upper adjustment block.

[0010] Furthermore, the surgical head frame connecting mechanism includes a T-shaped plate, connecting rods, locking bolts, connecting heads, and connecting bolts; the T-shaped plate is fixedly connected to the central sliding block, and two connecting rods are hinged to the front ends of the T-shaped plate through the locking bolts. The other ends of the two connecting rods are hinged to the connecting head through another locking bolt, and the connecting bolt is connected to the upper end of the connecting head.

[0011] Furthermore, the knob includes a locking block and a rotating bolt. The rotating bolt is threaded onto the slider, and the locking block is rotatably connected to the upper end of the rotating bolt. The locking block has two grooves that cooperate with the transverse guide rods. The locking block is located inside the slider, and the two transverse guide rods are located on the two grooves.

[0012] This utility model of a constant force traction device for cervical spine surgery can adjust the height and left and right position of the head according to the patient's cervical spine flexion and extension, improving the user's comfort. The traction force on the cervical spine can be adjusted by different counterweight masses. It is simple to operate and convenient for medical staff to perform surgery. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the cervical spine surgery constant force traction device provided in an embodiment of the present invention.

[0014] Figure 2 for Figure 1 A frontal view of a constant force traction device for middle cervical spine surgery.

[0015] Figure 3 for Figure 1 A schematic diagram of the structure combining the height adjustment mechanism and the surgical head frame connection mechanism of the constant force traction device for middle cervical spine surgery.

[0016] Figure 4 for Figure 1 A schematic diagram of the slider in a constant force traction device for middle cervical spine surgery.

[0017] Figure 5 for Figure 1 A schematic diagram of the height adjustment mechanism of the constant force traction device for middle cervical spine surgery.

[0018] Figure 6 for Figure 1 A schematic diagram of the surgical head frame connection mechanism of the constant force traction device for middle cervical spine surgery.

[0019] Figure 7 for Figure 1 A schematic diagram of the knob of the constant force traction device for middle cervical spine surgery.

[0020] The reference numerals and components involved in the accompanying drawings are shown below:

[0021] 1. Square tube 2. Horizontal guide rod 3. Slider

[0022] 31. Horizontal sliding hole; 32. Knob; 33. Front and rear sliding holes

[0023] 34. Locking block; 35. Rotary bolt; 36. Groove

[0024] 4. Front and rear guide rods; 5. Height adjustment mechanism; 51. Longitudinal guide rod

[0025] 52. Upper adjusting block; 53. Lower adjusting block; 54. Middle sliding block

[0026] 55. Handle 56. Screw 57. Threaded hole

[0027] 58. Longitudinal sliding hole; 6. Surgical head frame connecting mechanism; 61. T-shaped plate.

[0028] 62. Connecting rod; 63. Locking bolt; 64. Connector.

[0029] 65. Connecting bolts; 7. Pulley block; 8. Traction rope

[0030] 9. Counterweight Detailed Implementation

[0031] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0032] The terms "first," "second," "third," "fourth," etc., used in the specification and claims of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0033] Example 1

[0034] Figure 1 This is a schematic diagram of the constant force traction device for cervical spine surgery provided in an embodiment of the present invention. Figure 2 for Figure 1 A frontal view of a constant-force traction device for middle cervical spine surgery. Figure 3 for Figure 1 A schematic diagram of the combined height adjustment mechanism and surgical head frame connection mechanism of the constant force traction device for middle cervical spine surgery. Figure 4 for Figure 1 A schematic diagram of the slider in a constant-force traction device for middle cervical spine surgery. Please refer to... Figure 1 , Figure 2 , Figure 3 , Figure 4 The cervical spine surgery constant force traction device provided in this embodiment includes a square tube 1, a transverse guide rod 2, a slider 3, front and rear guide rods 4, a height adjustment mechanism 5, a surgical head frame connection mechanism 6, a pulley group 7, a traction rope 8, and a counterweight 9; two square tubes 1 are arranged parallel and spaced apart, and two transverse guide rods 2 are fixedly connected between the two square tubes 1, and the two transverse guide rods 2 are arranged parallel; two transverse sliding holes 31 that cooperate with the transverse guide rods 2 are provided at the lower end of the slider 3, and the two transverse guide rods 2 are slidably inserted into the two transverse sliding holes 31; a [missing information - likely a device or component] is connected to the bottom of the slider 3. A knob 32 for locking the slider 3; two front and rear sliding holes 33 are provided at the upper end of the slider 3 to cooperate with the front and rear guide rods 4, and the two front and rear guide rods 4 are slidably inserted into the two front and rear sliding holes 33. The other end of the front and rear guide rods 4 is fixedly connected to the height adjustment mechanism 5; the pulley group 7 is fixedly connected at the upper edge of the slider 3, one end of the traction rope 8 is connected to the height adjustment mechanism 5, and the other end of the traction rope 8 passes around the pulley group 7 and is connected to the counterweight 9; the surgical head frame connection mechanism 6 is connected to the front of the height adjustment mechanism 5.

[0035] It should be noted that, during assembly, the cervical spine surgery constant force traction device of this utility model is assembled by connecting the surgical head frame to the surgical head frame connecting mechanism 6; then, the cervical spine surgery constant force traction device is connected to the operating table; during use, the patient is first laid face down on the operating table, with the head fixed on the surgical head frame, and the height is adjusted by the height adjustment mechanism 5, and the left and right positions are adjusted by sliding the slider 3 on the horizontal guide rod 2, and locked by the knob 32, and the front and rear guide rods 4 will slide in the front and rear sliding holes 33; then, according to the patient's actual needs, the corresponding counterweight 9 is connected to the traction rope 8 so that the traction rope 8 always has a certain tension on the patient's head, and the patient's curved cervical spine can be corrected by pulling the patient's head;

[0036] This invention can adjust the height and left and right position of the head according to the patient's cervical spine flexion and extension, improving the user's comfort. The traction force on the cervical spine can be adjusted by using different counterweights 9. It is simple to operate and convenient for medical staff to perform surgery.

[0037] Figure 5 for Figure 1 A schematic diagram of the height adjustment mechanism of the constant force traction device for middle cervical spine surgery. Please refer to the diagram. Figure 5 The height adjustment mechanism 5 of this utility model includes a longitudinal guide rod 51, an upper adjustment block 52, a lower adjustment block 53, a middle sliding block 54, a handle 55, and a screw 56. The surgical head frame connecting mechanism 6 is fixedly connected to the front of the middle sliding block 54. A through threaded hole 57 is provided on the middle sliding block 54, and the screw 56 is connected in the threaded hole 57. The upper end of the screw 56 is rotatably connected to the upper adjustment block 52, and the lower end of the screw 56 passes through the lower adjustment block 53 and is connected to the handle 55. Through longitudinal sliding holes 58 are provided on both the left and right sides of the middle sliding block 54. The longitudinal guide rod 51 is slidably passed through the two longitudinal sliding holes 58. The upper ends of the two longitudinal guide rods 51 are fixedly connected to the upper adjustment block 52, and the lower ends of the two longitudinal guide rods 51 are fixedly connected to the lower adjustment block 53. The traction rope 8 and the front and rear guide rods 4 are connected to the upper adjustment block 52.

[0038] It should be noted that when the handle 55 is cranked, the screw 56 will rotate. The screw 56 drives the central sliding block 54 to slide up and down along the longitudinal guide rod 51 through the threaded hole 57, thereby controlling the up and down movement of the surgical head frame connecting mechanism 6.

[0039] Figure 6 for Figure 1 A schematic diagram of the surgical head frame connection mechanism of the constant force traction device for middle cervical spine surgery. Please refer to... Figure 6The surgical head frame connecting mechanism 6 of this utility model includes a T-shaped plate 61, connecting rods 62, locking bolts 63, connecting heads 64 and connecting bolts 65; the T-shaped plate 61 is fixedly connected to the middle sliding block 54, and two connecting rods 62 are hinged to the front ends of the T-shaped plate 61 by the locking bolts 63. The other ends of the two connecting rods 62 are hinged to the connecting heads 64 by another locking bolt 63, and the connecting bolts 65 are connected to the upper end of the connecting heads 64.

[0040] It should be noted that the surgical head frame is connected to the connecting bolt 65 during assembly.

[0041] Figure 7 for Figure 1 A schematic diagram of the knob of the constant force traction device for middle cervical spine surgery. Please refer to... Figure 6 The knob 32 of this utility model includes a locking block 34 and a rotating bolt 35. The rotating bolt 35 is threadedly connected to the slider 3. The locking block 34 is rotatably connected to the upper end of the rotating bolt 35. The locking block 34 is provided with two grooves 36 that cooperate with the transverse guide rods 2. The locking block 34 is located inside the slider 3, and the two transverse guide rods 2 are located on the two grooves 36.

[0042] It should be noted that when the rotating bolt 35 is rotated, the locking block 34 will move upward, thereby pressing the transverse guide rod 2 to achieve locking.

[0043] As can be seen from the above description, the advantages of this utility model are:

[0044] This utility model of a constant force traction device for cervical spine surgery can adjust the height and left and right position of the head according to the patient's cervical spine flexion and extension, improving the user's comfort. The traction force on the cervical spine can be adjusted by different counterweight masses. It is simple to operate and convenient for medical staff to perform surgery.

[0045] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A constant force traction device for cervical spine surgery, characterized in that, It includes a square tube (1), a transverse guide rod (2), a slider (3), front and rear guide rods (4), a height adjustment mechanism (5), a surgical head frame connection mechanism (6), a pulley system (7), a traction rope (8), and a counterweight (9); Two square tubes (1) are arranged in parallel and spaced apart, and two transverse guide rods (2) are fixedly connected between the two square tubes (1). The two transverse guide rods (2) are arranged in parallel. The lower end of the slider (3) is provided with two transverse sliding holes (31) that cooperate with the transverse guide rods (2). The two transverse guide rods (2) are slidably inserted into the two transverse sliding holes (31). A knob (32) for locking the slider (3) is connected to the bottom of the slider (3). The upper end of the slider (3) is provided with two front and rear sliding holes (33) that cooperate with the front and rear guide rods (4). The two front and rear guide rods (4) are slidably inserted into the two front and rear sliding holes (33). The other end of the front and rear guide rods (4) is fixedly connected to the height adjustment mechanism (5). The pulley assembly (7) is fixedly connected to the upper edge of the slider (3), one end of the traction rope (8) is connected to the height adjustment mechanism (5), and the other end of the traction rope (8) passes around the pulley assembly (7) and is connected to the counterweight (9). The surgical head frame connection mechanism (6) is connected to the front of the height adjustment mechanism (5).

2. The constant force traction device for cervical spine surgery according to claim 1, characterized in that, The height adjustment mechanism (5) includes a longitudinal guide rod (51), an upper adjustment block (52), a lower adjustment block (53), a middle sliding block (54), a handle (55), and a screw (56); The surgical head frame connecting mechanism (6) is fixedly connected to the front of the middle sliding block (54). The middle sliding block (54) has a through threaded hole (57), and the screw (56) is connected in the threaded hole (57). The upper end of the screw (56) is rotatably connected to the upper adjusting block (52), and the lower end of the screw (56) passes through the lower adjusting block (53) and is connected to the handle (55). The middle sliding block (54) has through longitudinal sliding holes (58) on both the left and right sides. The longitudinal guide rods (51) are slidably passed through the two longitudinal sliding holes (58). The upper ends of the two longitudinal guide rods (51) are fixedly connected to the upper adjusting block (52), and the lower ends of the two longitudinal guide rods (51) are fixedly connected to the lower adjusting block (53). The traction rope (8) and the front and rear guide rods (4) are connected to the upper adjusting block (52).

3. The constant force traction device for cervical spine surgery according to claim 2, characterized in that, The surgical head frame connecting mechanism (6) includes a T-plate (61), a connecting rod (62), a locking bolt (63), a connector (64), and a connecting bolt (65); The T-shaped plate (61) is fixedly connected to the middle sliding block (54). Two connecting rods (62) are hinged to the front ends of the T-shaped plate (61) by the locking bolts (63). The other ends of the two connecting rods (62) are hinged to the connector (64) by another locking bolt (63). The connecting bolt (65) is connected to the upper end of the connector (64).

4. The constant force traction device for cervical spine surgery according to claim 1, characterized in that, The knob (32) includes a locking block (34) and a rotating bolt (35). The rotating bolt (35) is threaded onto the slider (3). The locking block (34) is rotatably connected to the upper end of the rotating bolt (35). The locking block (34) has two grooves (36) that cooperate with the transverse guide rods (2). The locking block (34) is located inside the slider (3), and the two transverse guide rods (2) are located on the two grooves (36).

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