The utility model relates to an axillary vein puncture positioning ruler, which comprises a fixed ruler and a movable ruler, wherein the movable ruler is clamped in the sliding groove of the fixed ruler and can slide along the sliding groove of the fixed ruler, and the movable ruler is fixed on the fixed ruler through a locking device; the angle part of the fixed ruler is provided with a connected sliding groove along the direction of the horizontal ruler and the vertical ruler, and the inner edge of the upper slice of the horizontal ruler and the upper slice of the vertical ruler is provided with a positioning scale, and the positioning scale is provided with the upper slice of the horizontal ruler and the vertical ruler The intersection point of the inner side of the upper plate is \0\, and the moving ruler is embedded in the slide; the locking device includes the locking bolt and the fastening screw cap, and the locking bolt is composed of the sinking cap and the rod body, the front end of the rod body is provided with the locking thread, and the sinking cap of the locking bolt is sunk into the sinking groove of the fixed ruler. The positioning ruler is easy to operate, can quickly locate the axillary vein puncture point of the patient, provide the puncture efficiency, and save the operation time; at the same time, the device can be sterilized for reuse.
【技术实现步骤摘要】
一种腋静脉穿刺定位尺
本技术涉及医疗辅助工具领域,具体涉及一种腋静脉穿刺定位尺。
技术介绍
腋静脉穿刺技术从应用到临床以来,已经在静脉输液、麻醉及介入治疗中得到应用。腋静脉是锁骨下静脉向外的延续,在锁骨内侧称为锁骨下静脉,出锁骨称为腋静脉,腋静脉全程均在锁骨下方的胸廓外经过,通常在大圆肌下缘处,由肱静脉内侧支延续而成,经腋腔至第一肋外侧缘处移行于锁骨下静脉。根据其走行,以胸小肌上、下缘为标志将其分为三段:大圆肌腱下缘至胸小肌下缘为第一段,其内侧为正中神经内侧根,外侧为正中神经外侧根,前方为胸肌筋膜深层,后方为腋动脉,第一段腋静脉的长度为39.3±3.2mm,外径为7.8±1.6mm;胸小肌上、下缘之间为第二段,其内侧为第二肋及第二肋间隙,外侧为臂丛外侧束,前方为胸小肌,后方为臂丛内侧束,第二段腋静脉的长度为31.9±2.9mm,外径为9.5±2.5mm;胸小肌上缘及第一肋外侧缘为第三段,其内侧为第一肋间隙,外侧为腋动脉,前方为锁胸筋膜,后方为第一肋间隙外侧部,腋动脉和腋静脉在第三段被前斜角肌隔开,第三段腋静脉的长度为19.5±4.2mm,外径为12.5±2.7mm。临床实习护士在实习过程中因缺少相应的腋静脉穿刺辅助工具,其在盲穿的过程中极难寻找到患者的腋静脉穿刺点而造成误穿,给患者带来痛苦。现有的做法是,医护实习生借助常规的直尺并将其分别放置于患者的身上进行定位以寻找穿刺点,该操作方式比较繁琐,造成工作效率低下为问题,尤其在急救时,延误病人的宝贵的抢救时间。
技术实现思路
本技术为了解决上述问 ...
【技术保护点】
1.一种腋静脉穿刺定位尺,其特征在于,包括定尺和动尺,动尺卡入定尺的滑槽中并可沿定尺的滑槽滑动,动尺通过锁定装置固定于定尺上;/n所述的定尺由水平尺和竖直尺垂直固定连接,定尺的角部沿水平尺和竖直尺的方向开有连通的滑槽,滑槽将水平尺分隔为水平尺上片和水平尺下片,滑槽将竖直尺分隔为竖直尺上片和竖直尺下片,水平尺上片和水平尺下片上开有贯通的锁定滑槽,竖直尺上片和竖直尺下片上开有贯通的锁定滑槽,水平尺上片和竖直尺上片的内侧边缘设有定位刻度,定位刻度以水平尺上片和竖直尺上片的内侧边交点处为“0”点,水平尺下片和竖直尺下片上开有沉入槽,水平尺下片和竖直尺下片的锁定滑槽开设于沉入槽的槽底;/n所述的动尺上开有贯通的锁定滑槽,动尺上设有定位刻度,定位刻度以动尺的中心处为“0”点并向两端逐渐增大,动尺嵌入滑槽中;/n所述的锁定装置包括锁定螺栓和紧固旋帽,锁定螺栓由沉入帽和杆体组成,杆体的前端设有锁定螺纹,锁定螺栓的沉入帽沉入定尺的沉入槽中,一只锁定螺栓依次穿过水平尺下片的锁定滑槽和动尺的锁定滑槽并从水平尺上片的锁定滑槽中穿出,紧固旋帽与锁定螺栓螺纹连接并将动尺的一端固定于定尺上,一只锁定螺栓依次穿过竖直 ...
【技术特征摘要】
1.一种腋静脉穿刺定位尺,其特征在于,包括定尺和动尺,动尺卡入定尺的滑槽中并可沿定尺的滑槽滑动,动尺通过锁定装置固定于定尺上;
所述的定尺由水平尺和竖直尺垂直固定连接,定尺的角部沿水平尺和竖直尺的方向开有连通的滑槽,滑槽将水平尺分隔为水平尺上片和水平尺下片,滑槽将竖直尺分隔为竖直尺上片和竖直尺下片,水平尺上片和水平尺下片上开有贯通的锁定滑槽,竖直尺上片和竖直尺下片上开有贯通的锁定滑槽,水平尺上片和竖直尺上片的内侧边缘设有定位刻度,定位刻度以水平尺上片和竖直尺上片的内侧边交点处为“0”点,水平尺下片和竖直尺下片上开有沉入槽,水平尺下片和竖直尺下片的锁定滑槽开设于沉入槽的槽底;
所述的动尺上开有贯通的锁定滑槽,动尺上设有定位刻度,定位刻度以动尺的中心处为“0”点并向两端逐渐增大,动尺嵌入滑槽中;
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