The utility model discloses a bone marrow puncture needle for hematology department, the technical scheme of which is that the fixer includes a positioning ring and a positioning arm, the inner ring wall of the positioning ring can be slidingly connected with a protective cover, the protective cover is arranged outside the puncture needle tube, the positioning arm is arranged on the ring wall of the positioning ring and connected with the adsorption body, the diameter of the end face of the connection between the needle and the puncture needle tube is larger than the diameter of the puncture needle tube, There are fixed tubes and several deformed strips. Fixed tubes are connected with puncture needle tubes through threads. Several deformed strips extend along the axial direction of puncture needle tubes and are connected with the end face of fixed tubes. The other end of several deformed strips contradicts the end face of needles. Several deformed strips incline towards the surface of puncture needle tubes. The diameter of the inner cavity of deformed tubes decreases gradually from the fixed tube to the extension direction of needles. A convex platform is also arranged on the outer wall of the puncture needle tube, and the convex platform conflicts with the inner wall of the deformed tube, thus solving the problem that the bone marrow collected by the puncture needle tube is mixed with other liquids.
【技术实现步骤摘要】
一种血液科骨髓穿刺针
本技术涉及一种穿刺针,更具体的说是涉及一种血液科骨髓穿刺针。
技术介绍
骨髓穿刺术是采集骨髓液的一种常用诊断技术,临床上骨髓穿刺也常用于血细胞形态学检查,也可用于造血干细胞采集,培养、细胞遗传学分析及病原生物学检查等。用于采集骨髓液的采集工具通常以骨髓穿刺穿针为主,常用的骨髓穿刺针在穿刺时定向不准确,骨髓穿刺针的针头可能滑入到髂骨一侧,不能进入骨髓腔,或穿入骨髓腔后又穿出骨髓腔;同时汲取的骨髓体积控制不精确,穿刺深度也无法精确控制,经检索并找到了一篇申请号为CN201610682531.2的专利,该专利一定程度上解决了前述的问题,但依旧存在着缺陷:该专利中的穿刺针管在扎入人体皮肤时,穿刺针管下部表面设有螺纹环会勾勒并划破皮肤组织,给患者带来更多的疼痛感;螺纹环上用于骨髓通过的针孔也会因为人体组织而堵塞,影响骨髓的采集;同时人体其他组织的液体通过针孔流入穿刺针管内,影响后面收集的骨髓成分,影响医生对患者病情的判断。
技术实现思路
针对现有技术存在的不足,本技术的目的在于提供一种对人体损伤小且能收集高纯度骨髓的血液科骨髓穿刺针。为实现上述目的,本技术提供 ...
【技术保护点】
1.一种血液科骨髓穿刺针,包括有穿刺针管(1),所述穿刺针管(1)的一端套设有手柄(2),穿刺针管(1)的另一端连接有针头(3),所述穿刺针管(1)靠近针头(3)的侧壁上设置有针孔(12),所述针孔(12)与穿刺针管(1)的内腔连通,所述穿刺针管(1)靠近手柄(2)的侧壁上设置有储液槽(5),所述储液槽(5)与穿刺针管(1)的内腔连通,所述储液槽(5)的顶部安装有负压气囊(6),所述负压气囊(6)与储液槽(5)连通,所述穿刺针管(1)的外壁上连接有固定器(7),所述固定器(7)的端部连接有吸附体(8),其特征在于:所述固定器(7)包括有定位环(71)和定位臂(72),所述定 ...
【技术特征摘要】
1.一种血液科骨髓穿刺针,包括有穿刺针管(1),所述穿刺针管(1)的一端套设有手柄(2),穿刺针管(1)的另一端连接有针头(3),所述穿刺针管(1)靠近针头(3)的侧壁上设置有针孔(12),所述针孔(12)与穿刺针管(1)的内腔连通,所述穿刺针管(1)靠近手柄(2)的侧壁上设置有储液槽(5),所述储液槽(5)与穿刺针管(1)的内腔连通,所述储液槽(5)的顶部安装有负压气囊(6),所述负压气囊(6)与储液槽(5)连通,所述穿刺针管(1)的外壁上连接有固定器(7),所述固定器(7)的端部连接有吸附体(8),其特征在于:所述固定器(7)包括有定位环(71)和定位臂(72),所述定位环(71)的内环壁可滑移连接有护罩(4),所述护罩(4)套设于穿刺针管(1)外,所述定位臂(72)设置于定位环(71)的环壁上且与吸附体(8)连接,所述护罩(4)包括有固定管(42)和若干根形变条(41),若干根所述形变条(41)沿穿刺针管(1)轴向延伸并与固定管(42)的端面相连,初始状态下,相邻的形变条(41)的侧边均贴合并沿固定管(42)的端面形成一根形变管(43),所述形变管(43)的直径小于等于针头(3)端面的直径,若干根形变条(41)的另一端与针头(3)的端面相抵触,若干根所述形变条(41)朝向穿刺针管(1)的面为倾斜面(44),所述形变管(43)的内腔直径由固定管(42)向针头(3)的延伸方向逐渐减小,所述穿刺针管(1)上的外壁上还设置有凸台(11),所述凸台(11)与倾斜面(44)相抵触,当穿刺针管(1)相对固定管(42)转动时,穿刺针管(1)沿固定管(42)轴向移动,凸台(11)与倾斜面(44)相抵触并相对倾斜面(44)滑动,使得若干根形变条(41)均发生形变,若干根形变条(41)与针头(3)相抵触的一端均与针头(3)的端面错位。2.根据权利要求1所述的一种血液科骨髓穿刺针,其特征在于:所述凸台(11)包括有凸条(13)和转盘(14),所述凸...
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