一种适配于外科头架的牵引柄

Abstract

本实用新型公开了一种适配于外科头架的牵引柄，包括支撑杆、转动杆、活动杆和锁定杆，所述支撑杆的两端固定连接有固定机构，所述固定机构包括固定套环，所述固定套环的内部固定连接有设备外壳，所述设备外壳的内部活动连接有固定隼，且所述固定隼和设备外壳之间通过弹簧一固定连接，所述固定隼的另一端固定连接有转钮，所述固定隼的嵌合连接有自锁组件；通过上述设备使得卡卯内移时弹簧板带动小球滚入活动槽底部形成自锁，避免传统旋钮仅靠摩擦力固定的缺陷，在手术振动或触碰时仍能保持固定套环与支撑套管的连接稳固，防止头架牵引角度偏移，并且确保长时间手术中患者头部稳定，提升牵引精度与手术安全性。

Claims

1. A traction handle adapted to a surgical headrest, comprising a support rod (1), a rotating rod (2), a mobile rod (3) and a locking rod (4), characterized in that: The support rod (1) is fixedly connected to both ends by a fixing mechanism (7). The fixing mechanism (7) includes a fixing collar (71). The inside of the fixing collar (71) is fixedly connected to a device housing (72). The inside of the device housing (72) is movably connected to a fixing tenon (75). The fixing tenon (75) and the device housing (72) are fixedly connected by a spring (76). The other end of the fixing tenon (75) is fixedly connected to a knob (77). The fixing tenon (75) is fitted with a self-locking component (8). The self-locking assembly (8) includes a self-locking housing (81), a self-locking plate (82) is fixedly connected to the outside of the self-locking housing (81), and a retaining bracket (83) is movably connected to the inside of the self-locking housing (81) via a spring (84). A straight groove (85) is provided on the retaining bracket (83), and a spring plate (86) is fixedly connected inside the straight groove (85). A small ball (87) is movably connected to the spring plate (86), and a movable groove (88) matching the small ball (87) is provided on the side of the self-locking plate (82).

2. A traction handle adapted to a surgical headrest according to claim 1, characterized in that: A fixed round rod (78) is fixedly connected to the side of the knob (77), and a long groove (73) and a limiting groove (74) matching the fixed round rod (78) are provided on the side of the equipment housing (72).

3. A traction handle adapted to be coupled to a surgical headrest according to claim 1, wherein: The other end of the movable rod (3) is rotatably connected to a rotation limiting structure (5). The rotation limiting structure (5) includes a rotating seat (51). A rotating rod (57) is movably connected inside the rotating seat (51). A universal joint (56) is engaged at the end of the rotating rod (57). Multiple balls (55) are movably connected around the universal joint (56). A compression frame (53) matching the balls (55) is sleeved on the outside of the universal joint (56). A ball groove (54) matching the balls (55) is opened inside the rotating seat (51). A fitting round plate (58) is fixedly connected to the end of the rotating rod (57). A fixed knob (59) is rotatably connected to the fitting round plate (58).

4. A traction handle adapted to be coupled to a surgical headrest according to claim 3, wherein: The bottom of the rotating seat (51) is rotatably connected to a tightening knob (52), and a piston plate is fixedly connected to the tightening knob (52), which matches the extrusion frame (53).

5. A traction handle adapted to be coupled to a surgical headrest according to claim 3, wherein: A head support (6) is movably connected to the fitting round plate (58). The head support (6) includes a telescopic arm (61). One end of the telescopic arm (61) is movably connected to a telescopic rod (62). The other end of the telescopic arm (61) is rotatably connected to a fixing component (65), and the other end of the telescopic rod (62) is also rotatably connected to a fixing pin (64).

6. A traction handle adapted to a surgical headrest according to claim 5, characterised in that: The telescopic arm (61) is also fixedly connected to a fitting plate (63) on its side, and the fitting plate (63) is fitted and matched with the fitting round plate (58).

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