The invention discloses a detention type spinal cord cavity built-in device, which comprises a steel outer sleeve and needle core assembled into a whole for lumbar puncture, and a bio-silica gel inner sleeve. The inner sleeve head is surrounded by an air sac, and a side tube connected with an air sac is arranged on the inner sleeve wall. The opening of the side tube is located at the tail end of the inner sleeve and the tube of the inner sleeve. A bio-silica gel one-way valve is arranged in the lumbar cavity, and the one-way valve opens unilaterally to the end of the lumbar cavity; after the lumbar puncture is in place, the needle core is pulled out, the inner sleeve is inserted into the outer sleeve, and the air sac is penetrated into the head of the outer sleeve, and the medium which makes the air sac bulge is injected from the opening of the side tube, the outer sleeve is pulled out, and the end of the Follow-up work such as cerebrospinal fluid manometry, sample collection, intrathecal administration and cerebrospinal fluid replacement is carried out through three-way puncture, which realizes a number of treatment operations at a time, reduces the workload of doctors and alleviates the pain of patients.
【技术实现步骤摘要】
一种留滞型脊髓腔内置装置
本专利技术涉及医疗器械领域,具体涉及一种留滞型脊髓腔内置装置。
技术介绍
腰椎穿刺留取脑脊液检查和鞘内给药,是医院多个科室经常性的操作。腰椎穿刺对医师的技术水平、无菌要求较高,往往由高年资医师来完成,并且急性白血病以及蛛网膜下腔出血等患者需要反复穿刺进行鞘内给药或者脑脊液置,耗费了医师大量的时间。反复穿刺也给患者带来不良体验和机体损伤。
技术实现思路
本专利技术要解决的技术问题是提供一种留滞型脊髓腔内置装置,在腰椎穿刺后保留内套管连接三通管,以便后续取样、给药、脑脊液转换等操作,一次穿刺实现多项治疗操作,减少医师工作量,同时减轻患者痛苦。本专利技术通过以下技术方案实现:一种留滞型脊髓腔内置装置,包括腰椎穿刺用组装成整体的钢质外套管和针芯,还包括生物硅胶内套管,所述内套管头端周壁设有气囊,内套管壁上开设连通气囊的侧管,侧管开口位于内套管的尾端部,内套管的管腔内设有生物硅胶单向阀,单向阀向管腔尾端单向开启;腰椎穿刺到位后拔出针芯,内套管穿入外套管内,至气囊穿出外套管头端,从侧管开口注入使气囊隆起的介质,拔出外套管。本专利技术进一步改进方案是,所述内套管的外管壁上设有刻度标识。便于判断内套管插入外套管中的深度。本专利技术更进一步改进方案是,所述内套管尾端部外壁上设有气囊超过外套管内端口的警示标记。警示标记直截了当的提示内套管已插装到位,气囊到达设定位置。本专利技术更进一步改进方案是,外套管内开口尖端设有轻微弯曲弧度。能够引导内套管进去后按照指定的方向延伸。本专利技术与现有技术相比,具有以下明显优点:本专利技术在腰椎穿刺后内套管可留滞于患者体 ...
【技术保护点】
1.一种留滞型脊髓腔内置装置,包括腰椎穿刺用组装成整体的钢质外套管(1)和针芯(2),其特征在于:还包括生物硅胶内套管(3),所述内套管(3)头端周壁设有气囊(4),内套管(3)壁上开设连通气囊的侧管(5),侧管开口(51)位于内套管(3)的尾端部,内套管(3)的管腔内设有生物硅胶单向阀(6),单向阀(6)向管腔尾端单向开启;腰椎穿刺到位后拔出针芯(2),内套管(3)穿入外套管(2)内,至气囊(4)穿出外套管(2)头端,从侧管开口(51)注入使气囊隆起的介质,拔出外套管(2)。
【技术特征摘要】
1.一种留滞型脊髓腔内置装置,包括腰椎穿刺用组装成整体的钢质外套管(1)和针芯(2),其特征在于:还包括生物硅胶内套管(3),所述内套管(3)头端周壁设有气囊(4),内套管(3)壁上开设连通气囊的侧管(5),侧管开口(51)位于内套管(3)的尾端部,内套管(3)的管腔内设有生物硅胶单向阀(6),单向阀(6)向管腔尾端单向开启;腰椎穿刺到位后拔出针芯(2),内套管(3)穿入外套管(2)内,至气囊(4)穿出外套管(...
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