The devices of
Jianzhong Shang
The Chinese inventor Jianzhong Shang has patented two entirely different circumcision devices. The first is commonly called the Shang Ring, the second (to date, less well known) is the Shang Anastomat.
The Shang Ring
Originally known by the name “Shenghuan”, this circumcision device first appeared at the Hong Kong International Fair of Technology in 2003. Since then it has frequently been confused with the Zhenxi Ring, which is remarkably similar in appearance but functions somewhat differently.
Manufacturer's photograph illustrating the outer component only |
The Shangring’s inner component is fitted over the glans and the foreskin is drawn forward over it. The outer component is then applied to the external surface of the penis. The knife-edge shape of the outer ring crushes both the outer and inner foreskin; this process is facilitated by the soft inset embedded into the structure of the inner component. A certain degree of skill appears to be required in order to align the two components correctly. Nevertheless, the manufacturers claim a fitting time of around five minutes.
At the outset the device serves to prevent bleeding; there is no need for sutures. It is worn for about seven days, during which time necrosis will occur in a manner similar to all fit-and-wear clamps. The final scar line develops at the crushing point of the ring, not at the position of the cut.
It is important to note that the Shangring device provides no protection whatsoever for the glans. Thus, in the interests of patient safety, the use of surgical scissors rather than a scalpel should be considered.
The resulting style will be moderately low and totally loose; there is no opportunity with this device to tension the shaft skin and thus create a tight style. The frenulum is not removed; if that is required then it should be done as a separate, prior procedure.
Accurate choice of the appropriate size device is important when using the Shangring. The device comes in 22 different sizes ranging from 11mm to 38mm inside diameter of the outer component.
It is sterilised by gamma radiation (Cobalt-60 exposure) and has a shelf life of 3 years.
Data:
Inventor: Jian-Zhong Shang
Manufacturer: Wuhu SNNDA Medical Treatment Appliance Technology Co., Ltd., The Hi-tech. & Pioneering Service Center, North Yinhu Road, Wuhu Economic & Technological Development Zone, Wuhu 241001, China.
Manufacturer's website: http://www.snnda.com/enindex.asp
USFDA approved: No.
Primary patent: A copy of the patent certificate (in Chinese) is available here. There is some doubt about the “Priority Date” in respect of this patent. The Chinese document gives it as 12.Dec.2003 whereas the WIPO record suggests 27.Oct.2003. |
Known use of the Shang Ring
The Shang Anastomat
Here are some preliminary details of Shang’s second device:
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The following abstract in English appears in the patent document. The main text is only in Chinese.
“An anastomat for circumcision comprises an inner cutting ring (I), an elevating tubular cutting knife (II), an outer cutting ring (III), a connecting ring (IV), a detachable anti-erection plate (V) mounted at an inner side of a connecting plate (3) of the inner cutting ring (I), the inner cutting ring (I) is sleeved in the outer cutting ring (III), the elevated tubular cutting knife (II) is sleeved between the inner cutting ring (I) and the outer cutting ring (III), the canal feet (25) of the tubular cutting knife (II) pass through the arc grooves (16) on the lower annular block plate (10) of the connecting ring (III) and is connected to the turn button (26) on the tubular cutting knife (II), the outer cutting ring (III) and the connecting ring (IV) are formed a detachable connection.”
Clear, everybody, or has this perhaps suffered a little in translation? |
We have no evidence of this device going into production; more detail is wanted.
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