Images in Gynecologic Surgery
The AiMu MCu Intrauterine Device Evelyn Wong, MBBS, and Vincent Y. T. Cheung, MBBS, FRCOG, FRCSC* From the Department of Obstetrics and Gynaecology, Queen Mary Hospital, The University of Hong Kong, Hong Kong (both authors).
DISCUSS
Use your Smartphone to scan this QR code and connect to the discussion forum for this article now*
You can discuss this article with its authors and with other AAGL members at http://www.AAGL.org/jmig-22-3-JMIG-D-14-00569
* Download a free QR Code scanner by searching for ‘‘QR scanner’’ in your smartphone’s app store or app marketplace.
A 33-year-old woman requested removal of an intrauterine device (IUD) that had been inserted 11 years earlier in China. An AiMu MCu IUD (Liaoning AiMu Medical Science and Technology Co., Ltd.) (Fig. 1) was removed under hysteroscopic guidance (Fig. 2).
Fig. 1 The AiMu MCu IUD.
To our knowledge, no information is available on the prevalence of the various types of IUDs used in China. However, this AiMu MCu IUD has become popular since its introduction in 2003, with up to 14 million users according to the manufacturer (AiMu). ‘‘M’’ indicates ‘‘memory function,’’ emphasizing the prolonged capability of the device to maintain the designed shape [1–3]. The IUD has an open arcuate shape with springlike action to comply with the shape of the uterine cavity, thereby reducing the risk of migration or expulsion. The copper beads at the ends create a high copper density
Fig. 2 The IUD as seen on hysteroscopy.
The authors declare no conflicts of interest. Corresponding author: Dr. Vincent Y. T. Cheung, Department of Obstetrics and Gynaecology, Queen Mary Hospital, University of Hong Kong, 102 Pokfulam Road, Hong Kong. E-mail: [email protected] Submitted November 13, 2014. Accepted for publication December 30, 2014. Available at www.sciencedirect.com and www.jmig.org 1553-4650/$ - see front matter Ó 2015 AAGL. All rights reserved. http://dx.doi.org/10.1016/j.jmig.2014.12.166
Wong and Cheung.
The AiMu MCu Intrauterine Device
Fig. 3 The IUD as seen sonographically. (Reprinted with permission from the Society of Obstetricians and Gynaecologists of Canada [3].)
711
at the tubal ostia, preventing sperm entry and embryo implantation [1–3]. It is effective for 10 years after insertion [4], can be readily located sonographically [2,3] (Fig. 3), and can be retrieved using an IUD removal hook [1,3]. References 1. Cheung VY. A 10-year experience in removing Chinese intrauterine devices. Int J Gynaecol Obstet. 2010;109:219–222. 2. Cheung VY. Sonographic appearance of Chinese intrauterine devices. J Ultrasound Med. 2010;29:1093–1101. 3. Cheung VY. AiMu MCu: a new Chinese intrauterine device. J Obstet Gynaecol Can. 2009;31:911. 4. Anshan AiMu Medical. Clinical application of a new shape memory IUD. Forum on China family planning and reproductive health industry 2003. Available at: http://www.aimu.com.cn. Accessed December 8, 2014.
The AiMu MCu Intrauterine Device Evelyn Wong, MBBS, and Vincent Y. T. Cheung, MBBS, FRCOG, FRCSC* From the Department of Obstetrics and Gynaecology, Queen Mary Hospital, The University of Hong Kong, Hong Kong (both authors).
DISCUSS
Use your Smartphone to scan this QR code and connect to the discussion forum for this article now*
You can discuss this article with its authors and with other AAGL members at http://www.AAGL.org/jmig-22-3-JMIG-D-14-00569
* Download a free QR Code scanner by searching for ‘‘QR scanner’’ in your smartphone’s app store or app marketplace.
A 33-year-old woman requested removal of an intrauterine device (IUD) that had been inserted 11 years earlier in China. An AiMu MCu IUD (Liaoning AiMu Medical Science and Technology Co., Ltd.) (Fig. 1) was removed under hysteroscopic guidance (Fig. 2).
Fig. 1 The AiMu MCu IUD.
To our knowledge, no information is available on the prevalence of the various types of IUDs used in China. However, this AiMu MCu IUD has become popular since its introduction in 2003, with up to 14 million users according to the manufacturer (AiMu). ‘‘M’’ indicates ‘‘memory function,’’ emphasizing the prolonged capability of the device to maintain the designed shape [1–3]. The IUD has an open arcuate shape with springlike action to comply with the shape of the uterine cavity, thereby reducing the risk of migration or expulsion. The copper beads at the ends create a high copper density
Fig. 2 The IUD as seen on hysteroscopy.
The authors declare no conflicts of interest. Corresponding author: Dr. Vincent Y. T. Cheung, Department of Obstetrics and Gynaecology, Queen Mary Hospital, University of Hong Kong, 102 Pokfulam Road, Hong Kong. E-mail: [email protected] Submitted November 13, 2014. Accepted for publication December 30, 2014. Available at www.sciencedirect.com and www.jmig.org 1553-4650/$ - see front matter Ó 2015 AAGL. All rights reserved. http://dx.doi.org/10.1016/j.jmig.2014.12.166
Wong and Cheung.
The AiMu MCu Intrauterine Device
Fig. 3 The IUD as seen sonographically. (Reprinted with permission from the Society of Obstetricians and Gynaecologists of Canada [3].)
711
at the tubal ostia, preventing sperm entry and embryo implantation [1–3]. It is effective for 10 years after insertion [4], can be readily located sonographically [2,3] (Fig. 3), and can be retrieved using an IUD removal hook [1,3]. References 1. Cheung VY. A 10-year experience in removing Chinese intrauterine devices. Int J Gynaecol Obstet. 2010;109:219–222. 2. Cheung VY. Sonographic appearance of Chinese intrauterine devices. J Ultrasound Med. 2010;29:1093–1101. 3. Cheung VY. AiMu MCu: a new Chinese intrauterine device. J Obstet Gynaecol Can. 2009;31:911. 4. Anshan AiMu Medical. Clinical application of a new shape memory IUD. Forum on China family planning and reproductive health industry 2003. Available at: http://www.aimu.com.cn. Accessed December 8, 2014.
