The utility model provides a sterile dosing device, including needle, needle sleeve, and the filter ventilation, a gap is arranged between the casing inner wall and the outer wall of the needle, the holes are arranged in the casing at the upper end of the side wall of the casing, the lower end is provided with a sleeve seat, and the upper end of the lower end of the casing seat is connected with the sleeve seat is arranged on the lower end of the vertical and the side wall of the casing casing seat seat flange, the needle seat is arranged in the middle of a flange matched with the casing seat flange the needle top circle is evenly distributed with a plurality of supporting ribs, and supports the lower seat flange perpendicular to the upper surface is connected with the needle seat support rib medial lateral wall vertically connected support rib the lateral and medial wall of the sleeve seat fit, filter ring is arranged between the hub flange and a flange sleeve seat. The beneficial effect of the utility model is that the outside air enters the gap between the two adjacent supporting ribs and the outer wall of the bushing seat through the side wall of the filter membrane, and enters the ventilation gap, which is discharged from the vent hole, and has good filtering effect and high safety.
【技术实现步骤摘要】
无菌加药器
本技术属于医疗器械领域,具体涉及一种无菌加药器。
技术介绍
输液是一种广泛应用的治疗方法,在进行输液之前,通常需要将粉剂或液剂药物先用液体药剂或待输液的溶液配制成药液,然后再将液态药物加注到待输液的溶液中。在加药、抽药时,需要保持瓶内外的气压平衡,才能够使加药、抽药操作轻松自如。在药液的配置过程中需要使用到无菌加药器,以保持瓶内外气压平衡,且防止空气中的尘埃粒子和病原体进入到待注射溶液中。申请号:201310612571.6公开了一种端面排气低阻尼加药针,包括中空针、针套管、针固定座和空气过滤膜,在针套管的护针管的侧面设有排气孔;在针固定座的对接孔的底设有与外界相通连的端面出气孔,在对接孔的底部设有空气过滤膜,针套管上端套装在中空针下端套装对接孔中,连接座管的下端面压住空气过滤膜,排气孔与端面出气孔相通连。其针套管和针固定座均为便于轴向抽芯的结构,压制模具结构简单,成型压制效率高,所得成品率高,产品的综合成本降低,更利于产业化。
技术实现思路
本技术的目的是提供一种结构简单,加药、抽药阻力小,使用轻松方便的无菌加药器。本技术的技术方案是:无菌加药器,包括钢针、 ...
【技术保护点】
无菌加药器,包括钢针、套管、针座和过滤膜,套管内侧壁与钢针外侧壁之间设有通气间隙,在套管上端的侧壁上设有通气孔,其特征在于:所述套管的下端设有套管座,套管座的上端与套管下端相连接,套管座的下端设有与套管座侧壁相垂直的套管座突缘,所述针座中部设有与套管座突缘相配合的针座突缘,针座上端圆周均布设有多个支撑肋,支撑肋的下端与针座突缘的上表面垂直相连,支撑肋的内侧与针座外侧壁垂直相连,支撑肋的外侧与套管座内侧壁过盈配合,环形的过滤膜设置在针座突缘与套管座突缘之间。
【技术特征摘要】
1.无菌加药器,包括钢针、套管、针座和过滤膜,套管内侧壁与钢针外侧壁之间设有通气间隙,在套管上端的侧壁上设有通气孔,其特征在于:所述套管的下端设有套管座,套管座的上端与套管下端相连接,套管座的下端设有与套管座侧壁相垂直的套管座突缘,所述针座中部设有与套管座突缘相配合的针座突缘,针座上端圆周均布设有多个支撑肋,支撑肋的下端与针座突缘的上表面垂直相连,支撑肋的内侧与针座外侧壁垂直相连,支撑肋的外侧与套管座内侧壁过盈配合,环形的过滤膜设置在针座突缘与套管座突缘之间。2.根据权利要求1所述的无...
【专利技术属性】
技术研发人员:谭学礼,于纪团,
申请(专利权)人:山东威高集团医用高分子制品股份有限公司,
类型:新型
国别省市:山东,37
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