腰椎间盘切除环锯 Lumbar Discectomy trephine
本实用新型涉及一种骨科手术医疗器械，特别是一种腰椎间盘切除环锯。 The present invention relates to an orthopedic medical device, in particular a lumbar discectomy trepan.
现在腰椎间盘切除手术是采用小手术刀做环形切除，存在暴露困难，易损伤神经根、硬脊膜和脊前静脉丛的危险。 Now lumbar discectomy surgery is the use of a scalpel to make a small loop excision, there is exposed the difficulties, easy to damage the nerve root and spinal epidural venous plexus before danger.
本实用新型的目的在于针对上述现有技术的不足之处，提供一种腰椎间盘切除环锯，可有效保护神经根、硬脊膜和脊前静脉丛，减少出血，缩短手术时间。 Object of the present invention for the above-described shortcomings of the prior art, there is provided a trephine lumbar discectomy, can effectively protect the nerve roots, and spinal epidural venous plexus before, reduce bleeding, shorten the operation time.
本实用新型的目的是通过下述技术方案实现的：一种腰椎间盘切除环锯，由T形环锯、套筒组成，T形环锯由互相垂直的环锯柄、环锯体组成，环锯体为一圆柱体，分粗部、细部两部分，其细部上套有套筒，细部前端为空心圆柱体，内部有内螺纹，顶端为锯齿状。 The object of the present invention is achieved by the following technical solutions: A trephine lumbar discectomy, a T-shaped trephine, the composition of the sleeve, a T-shaped trephine mutually perpendicular handle trephine, a trephine body, the rings a saw body is a cylindrical, thick sub-section, detail of two parts, a sleeve sleeved on the details, details of the front end of a hollow cylinder, with an internal thread inside, top serrated. 临床应用时，行常规腰椎手术入路，椎板间开窗，应用神经拉钩和脑膜剥离子剥离牵拉硬膜囊和神经根，显露突出的腰椎间盘。 Clinical applications, with routine surgical approach to the lumbar spine, between the fenestration, neural and meningeal retractor peel peeling pull the sub dural sac and nerve roots, revealed prominent lumbar intervertebral disc. 对准突出的腰椎间盘放置套筒，拿掉神经拉钩和脑膜剥离子，将环锯放入套筒，旋转环锯逐渐钻入腰椎间盘。 The alignment sleeve disposed lumbar disc protrusion, and the meninges removed nerve retractor release sub, the trephine into the sleeve, the rotation gradually trephine drill lumbar intervertebral disc. 取出环锯时，由于环踞的内螺纹，可将切下的间盘组织带出。 When removing the trephine, since the inner threaded ring squat, the discs may be cut out of the tissue.
本实用新型与现有技术相比具有如下优点：该腰椎间盘切除环锯可有效保护神经根、硬脊膜和脊前静脉丛。 The present invention as compared with the prior art has the following advantages: The trephine lumbar discectomy can protect nerve roots, and spinal epidural venous plexus before. 通过限制其深度，可防止环锯过深，损伤椎前大血管，并将切下的间盘组织自动取出。 By limiting the depth to prevent too deep a trephine, vertebral large vessels prior to the injury, and the takeout of disc tissue excised.
附图1是本实用新型的示意图；附图2是其T形环锯的示意图；附图3是其T形环锯的剖视图。 1 is a schematic view of the present novel utility; Figure 2 is a schematic view of a T-shaped ring which saw; Figure 3 is a sectional view of a T-shaped trephine.
下面结合附图详述本实用新型的实施例：一种腰椎间盘切除环锯，由T形环锯1、套筒2组成，T形环锯1由互相垂直的环锯柄3、环锯体4组成，环锯体4为一圆柱体，分粗部5、细部6两部分，其细部6上套有套筒2，细部6的前端为空心圆柱体且内壁有内螺纹9，顶端为锯齿状。 Detailed description of the embodiments of the present invention in conjunction with the following: one cashew discectomy trephine, a trephine T-1, the composition of the sleeve 2, a T-shaped trephine to each other by a vertical lever 3 trephine, a trephine member 4, the rings 4 of a saw cylinder, the crude sub-unit 5, 6 detail in two parts, on which a sleeve 2 sets of detail 6, the distal end 6 of detail as a hollow cylinder and an inner wall with an internal thread 9, the top of the sawtooth shape. 在环踞体4的细部6上靠近粗部一端，有一0-15mm的刻度7。 The crude near the end portion on the ring body standing at detail 4 6, 7 has a 0-15mm scale. 在环锯体4细部6上靠近顶端处有一纵形侧孔8。 Near the top side has a longitudinal hole saw 8 in the ring member 4 6 detail. 该腰椎间盘切除环锯在制作时，环锯柄3的长度为5cm、直径8mm，环锯体4长度为20cm，其粗部长度为8.5cm、直径8mm；细部长度为11.5cm、外径6mm、内径4、5mm。 The lumbar discectomy in the production of a trephine, a trephine 3 stem length of 5cm, diameter of 8mm, a length of 4 trephine 20cm, which is 8.5cm thick portion length, a diameter of 8mm; detail 11.5cm length, 6mm diameter inside diameter 4,5mm. 纵形侧孔8的长为2cm、宽为3mm。 Long longitudinal side hole 8 is 2cm, width of 3mm. 套筒2长10cm，外径8mm、内径6mm。 2 sleeve length 10cm, outside diameter 8mm, inside diameter 6mm. 临床应用时，行常规腰椎手术入路，椎板间开窗，应用神经拉钩和脑膜剥离子剥离牵拉硬膜囊和神经根，显露突出的腰椎间盘。 Clinical applications, with routine surgical approach to the lumbar spine, between the fenestration, neural and meningeal retractor peel peeling pull the sub dural sac and nerve roots, revealed prominent lumbar intervertebral disc. 对准突出的腰椎间盘放置套筒2，拿掉神经拉钩和脑膜剥离子，将T形环锯1放入套筒2，旋转环锯柄3逐渐钻入腰椎间盘。 The alignment sleeve disposed protruding lumbar disc 2, and the meninges removed nerve retractor peeling promoter, a T-shaped trephine into the sleeve 2, the rotation handle trephine drill lumbar disc 3 gradually. 钻入深约15mm时，T形环锯1卡在套筒2上不再加深，此时，取出T形环锯1，由于环踞的内螺纹9，可将切下的间盘组织带出。 When drilling into a depth of about 15mm, a T-shaped card 1 trephine on the sleeve 2 from exacerbating this time, remove the T-shaped trephine 1, since the inner threaded ring squat 9 discs may be cut out of the tissue . 然后，通过T形环锯上的纵形侧孔8将切下的间盘组织推出。 Then, the inter-disc tissue excised by the introduction of the longitudinal side of the hole saw T-ring 8.