Abstract: A surgical retractor device has a housing with press arms coupled thereto, each arm having rotational movement in a plane, and a gripping member pivoting at right angle with the plane, at an outer end of the arm; an attachment means at an inner end of the arm; an opening and closing mechanism with rotatable press arm attachment structures attaching the attachment means of the press arms, symmetrically positioned from a centerline of the device; rotatable handle attachment structures, and; a transfer mechanism transferring rotation from handle attachment structures to press arm attachment structures. The device also has handles for operating the opening and closing mechanism. Each handle has a handle attachment means at an inner end of the handle for attachment to the handle attachment structures; and, a handle structure. The handles have a rotational movement in the plane and are symmetrically positioned from the centerline of the device.

Abstract: The present invention relates to a back-up battery for an electronic device with a rechargeable battery, which electronic device is provided with a contact for connecting a battery charger and which back-up battery consists of one or more battery cells. According to the invention the terminals on the back-up battery are connected to a contact adapted to the contact for the battery charger on the electronic device, with the result that when it is connected to the electronic device's battery charger contact the back-up battery will charge the electronic device's rechargeable battery, thereby providing increased service life for the electronic device.

Abstract: The present invention relates to a back-up battery for an electronic device with a rechargeable battery, which electronic device is provided with a contact for connecting a battery charger and which back-up battery consists of one or more battery cells. According to the invention the terminals on the back-up battery are connected to a contact adapted to the contact for the battery charger on the electronic device, with the result that when it is connected to the electronic device's battery charger contact the back-up battery will charge the electronic device's rechargeable battery, thereby providing increased service life for the electronic device.

Abstract: The invention relates to a device (1) for charging a starting battery in a vehicle. The device comprises a number of chargeable emergency battery units (3a, 3b), control circuits for controlling a first charging process for charging the starting battery (2) and for controlling a second charging process for charging the emergency battery units (3a, 3b), and connecting devices (5) for electrical connection to a circuit in which the starting battery (2) is included. The control circuits comprise a checking device (6), arranged for measuring the starting battery's voltage and a voltage for at least one of the emergency battery units, and arranged for controlling at least one of the first and the second charging processes as a function of at least these voltages.