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Clutches instruments
The couplings of this invention are designed to hold the two instruments shafts together. The simplest type of coupling is the gib head sunk key, which consists of a hollow pipe that has the same inner diameter as the shafts and is fitted over the proximal end of two or more shafts by a taper sunk key. This coupling transfers power from one shaft to another and allows for slight misalignment between the axes of rotation of the two shafts.
The couplings of this invention are manual. A manipulating actuator connects to an instrument shaft via a length modification component. The movable shaft section is connected to the actuator handle through a length modification means. The length of the shaft can be altered before or after insertion of the laparoscopic instrument into the patient. The length adjustment can be carried out prior to or after the insertion of the laparoscopic instrument.
The couplings of this invention are removably attached. The removably attachable handles are designed to be interchangeable. The couplings of the invention are usually locked to the shafts with a spring-loaded latched or detents. Orientation of the replaceable handles is adjustable prior to laparoscopic surgery. This type of coupling may also include an adapter that allows the user to change the operating characteristics of the instrument.
The couplings used for instrument shafts are made of different materials. Some of these materials are made from ceramics, which makes them more durable than stainless steel. In addition, they are more expensive than the couplings used in other equipment. In some instances, the shafts are made of steel, which means that they can withstand extreme temperature and pressure levels. Moreover, the couplings can be easily removed, which is a major benefit in terms of maintenance.
Surgical clamping devices 182 are used in laparoscopic procedures. They provide greater maneuverability and are made of stainless steel. They also come with a slidable actuator at the distal end. This is used to control the opening and closing of the jaws of the instrument. The couplings are flexible, and surgeons can customize the instruments according to their preferences. This helps them fit their hands in the optimal position for each operation.
The sleeve coupling is made of a pipe that is bored to the required tolerance according to the size of the shaft. In addition, the coupling is secured in position using two threaded holes. The ASK slit style coupling, also called a sliced coupling, is a single-piece device with machined intermittent slits for torque transmission and torsional stiffness.