for Johnson & Johnson
Circular staplers allow surgeons to quickly join two lumens (tube-shaped organs), a common step in many GI procedures. Current circular staplers on the market have 30-40 components in the handle. The patented stapler design was conceived as an attempt to simplify the product and move into new markets. Components are limited to only ones that move relative to another component, require a unique material, or are necessary for assembly.
The resulting handle design consists of only 9 all metal components joined into only 5 user facing parts and sub-assemblies. The 5 part concept can be disassembled and reassembled by one person with no tools in about 1 minute. This makes sterilizing the device in a standard autoclave practical. Though greatly simplified, the device incorporates multiple safety lockouts that only allow the device to be actuated in the proper order, retains an important adjustment for tissue thickness, and adds tactile feedback to the staple height adjustment mechanism.View project Next project