The utility model relates to a finger tendon pulling device, which comprises a sleeve, an inner tube and a clamping device. The sleeve and the inner tube are both flexible hollow sleeves. The front end of the inner tube is provided with a sliding block, the sliding block is in the sleeve and slides with the sleeve, the sliding block is provided with a rotating shaft, and the clamping device comprises two relatively arranged clamping plates and wires, and two clamping plates One end of the plate is rotationally connected with the rotating shaft, a spring is arranged between the two splints, the front end of the drawing wire extends between the two splints through the rotating shaft, a connecting rod is connected between the middle part of the splint and the front end of the drawing wire, the connecting rod is rotationally connected with the splint and the front end of the drawing wire, and the rear end of the drawing wire is provided with a pull ring and connected with the front end of the drawing wire Extending out of the inner tube. The utility model is used for the traction operation of the tendon rupture of the finger, which can extend into the tendon sheath of the proximal segment of the finger, and is convenient to turn and align with the tendon rupture surface, with small trauma, and is conducive to the operation.
【技术实现步骤摘要】
一种指部肌腱牵拉装置
:本技术涉及医疗器械
,具体涉及一种指部肌腱牵拉装置。
技术介绍
:手外伤致手指屈肌腱损伤往往会出现肌腱断端回缩,特别是肌腱近端,手术中为吻合修复肌腱需将肌腱断端牵引至伤口处予以修复。目前一般采用常规的止血钳进行操作,术中常需要伤口近端再做一个切口,探查肌腱近端并牵引至原伤口。作第二切口会导致损伤加大,并且探查肌腱过程中钳头可能会损伤腱鞘组织,对后期功能恢复影响较大。专利申请号为CN201910827273.6的专利通过将牵拉钳的咬合部设计为两个半边结构相对咬合的结构形式,并且改变以往采用闭合钳头对肌腱进行刚性夹持咬合固定的方式,在咬合部的咬合端上开设圆形开口,利用圆形开口与肌腱断端进行咬合接触,形成对肌腱断端的环形抱箍固定,从而避免肌腱断端的劈散、腱周膜剥脱等医源性损伤,咬合过程中不会对肌腱造成二次损伤,并可以调整肌腱断端的纳入长度,以利于对肌腱断端进行稳定固定。但是这种结构需要牵引杆为直杆,伸入肌肉组织后不易转向,由于手指部位较为弯曲,特别是位于手指近节的腱鞘内容积有限,牵拉钳的咬合部不易伸入,不适用 ...
【技术保护点】
1.一种指部肌腱牵拉装置,其特征在于:包括套管、内管和夹持器,所述套管和所述内管均为柔性空心管,所述内管的前端设有滑块,所述滑块在所述套管内并与所述套管滑动配合,所述滑块内设有转轴,所述夹持器包括两块相对设置的夹板和拉丝,两块所述夹板的一端均与所述转轴转动连接,两块所述夹板之间还设有弹簧,所述拉丝的前端穿过所述转轴伸入两块所述夹板之间,所述夹板的中段和所述拉丝的前端之间连接有连接杆,所述连接杆与所述夹板和所述拉丝的前端之间均为转动连接,所述拉丝的后端设有拉环并伸出所述内管外。/n
【技术特征摘要】
1.一种指部肌腱牵拉装置,其特征在于:包括套管、内管和夹持器,所述套管和所述内管均为柔性空心管,所述内管的前端设有滑块,所述滑块在所述套管内并与所述套管滑动配合,所述滑块内设有转轴,所述夹持器包括两块相对设置的夹板和拉丝,两块所述夹板的一端均与所述转轴转动连接,两块所述夹板之间还设有弹簧,所述拉丝的前端穿过所述转轴伸入两块所述夹板之间,所述夹板的中段和所述拉丝的前端之间连接有连接杆,所述连接杆与所述夹板和所述拉丝的前端之间均为转动连接,所述拉丝的后端设有拉环并伸出所述内管外。<...
【专利技术属性】
技术研发人员:雷伟,
申请(专利权)人:华中科技大学同济医学院附属协和医院,
类型:新型
国别省市:湖北;42
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