Roberts D K, Horbelt D V, Walker N J
Contraception. 1984 Mar;29(3):215-28. doi: 10.1016/s0010-7824(84)80002-5.
Fifteen multifilament strings on Dalkon Shield IUDs removed from patients were evaluated with scanning electron microscopy. All fifteen showed deterioration of the sheath which encloses the smaller inner filaments. The greatest area of deterioration was at the attachment knot which is usually intrauterine. Deterioration of the sheath also occurs when the device is within the uterine wall or intraperitoneal. The risk of pelvic infection may be attributed to this deterioration of the sheath and contamination from that site.
对从患者体内取出的15根Dalkon Shield宫内节育器上的复丝进行了扫描电子显微镜评估。所有15根节育器均显示包裹较细内部细丝的护套出现了劣化。劣化最严重的区域是通常位于子宫内的连接结处。当该装置位于子宫壁内或腹腔内时，护套也会发生劣化。盆腔感染的风险可能归因于护套的这种劣化以及该部位的污染。
