| 摘要 |
The conventional technique is to wrap the limb in question tight with rubber strips called Esmarch bandage whereby ischaemia is achieved. This is maintained by means of a conventional tourniquet which is fastened around a thigh or upper arm respectively. During surgery on a ischaemic area it sometimes happens that the surgeon needs to reach the area under the cuff. With a device according to this invention, a so-called roll-on cuff, this disadvantage amongst others is eliminated as the roll-on cuff can be moved during the operation without jeopardizing the ischaemic area. The roll-on cuff consists of an elastic tube (1; 3, 4), preferably of rubber, where the inner cavity is filled with a gas, preferably air, or a liquid. Furthermore the walls of the inner cavity of the tubes are filled with a lubricant (2), preferably silicone oil, to facilitate rolling on and off. The roll-on cuff is locked on a cone-shaped part of a limb by means of another cuff (4) on which the cuff (3) placed on the bigger diameter of the limb is allowed to roll onto until a state of equilibrium is reached. The friction between the two cuffs is, due to the nature of the material enough to keep the cuffs (3, 4) in place. |
