A cutlery blade having a longitudinal slot formed therein and having spaced longitudinal rails to receive one or more rotating blade assemblies. A handle is attached to the blade and a pair of tabs are integrally formed in the longitudinal slot in proximity to the handle and one of the rotating blade assemblies is in locking engagement with the tabs.

A tool for cutting a tie wrap bound about a wire bundle. The tool includes a body portion having a generally disc-shaped cutter and cutting edge. A shield covers one side of the cutter and defines first and second shield slots in communication with the cutting edge. A housing pivotally connected to the body portion covers the other side of the cutter and defines first and second housing slots that communicate with the cutting edge. The housing pivots between first, second, and third positions. In the first position, the first housing slot communicates with the first shield slot to expose the cutting edge for cutting purposes. In the second position, the first housing slot is out of communication with the first shield slot, thereby covering the cutting edge. And, in the third position, the second housing slot communicates with the second shield slot to expose the cutting edge.

The present disclosure relates to safety blades for use in utility knives, related assemblies and methods of manufacturing. More specifically, the present disclosure relates to safety blades for use in utility knives, related assemblies and methods of manufacture which limit user exposure to associated cutting edges.

A bearing type handle roller cutter is disclosed. The bearing type handle roller cutter comprises a handle body, and a movable bracket movably connected within the handle body. The handle body utilises a push block, a spring, a bearing, a protective disk and a cutter head, and exposes the cutter head for cutting. The push block is pushed through the use of the spring to automatically reset and protect the cutter head. The bearing type handle roller cutter can be used by different people and has the advantages of prolonging the service life and improving the cutting accuracy.

A hand-held cutting device having a main body (6) including a handle (62) and a cutting head (63). The cutting device having a cutting element (4) attached to the cutting head (63), a guiding and supporting element (2) extending from the cutting head (63). The guiding and supporting element (2) and cutting head (63) being arranged to form a protecting periphery such that any part of a cutting edge (4A) of the cutting element (4) does not protrude outside of the periphery. The guiding and supporting element (2) including a distal portion (20) arranged to form a feed channel (64) together with a portion (60) of the handle (62), and the cutting element (4) is arranged to be releasably, none rotatably, attached to the cutting head (63), by means of a locking device (42, 43) that provides for re-positioning and renewing of an active part of the cutting edge (4A).

The present disclosure provides devices, instruments, and kits for handling certain implantable substrates, for example, cell-seeded membranes. The devices, instruments, and kits may be used for washing, cutting, and preparing the substrates for implantation into a patient. The devices, instruments, and kits may be particularly useful for handling implantable substrates that were cryopreserved.

A tool includes an elongated handle with an end recess and a side notch for latching, and a plurality of different replaceable heads. Each replaceable head includes an elongated rectangular section shaped to fit stably into the recess for providing torsional and lateral support, an operative end, and a latch releasably engaging the side notch to retain the head in the recess. The different heads can include different operative ends with structure for providing different operative functions, such as a head with oppositely-positioned partially-shielded blade tips and/or with different blade throat sizes, a head with pizza-cutting wheel, a head with hammer or wrench feature, and the like.

A quick disassembly rotary cutter has a round blade, a casing, a fixed shaft, and a clamp part. The round blade is mounted on one surface of the casing, and selectively protrudes from the casing. The fixed shaft penetrates through the round blade and the casing, and the round blade is mounted on the fixed shaft. The clamp part is mounted in the casing and has a notch and at least one push rod. The notch is located on an end of the clamp part, and the fixed shaft can be clamped in the notch. The push rod is located on one surface of the clamp part, protrudes outward from the surfaces of the clamp part, and penetrates the casing. The clamp part moves away from the fixed shaft to disengage the fixed shaft from the notch when the push rod is pushed away from the fixed shaft.

A quick disassembly rotary cutter has a round blade, a casing, a fixed shaft, and a clamp part. The round blade is mounted on one surface of the casing, and selectively protrudes from the casing. The fixed shaft penetrates through the round blade and the casing, and the round blade is mounted on the fixed shaft. The clamp part is mounted in the casing and has a notch and at least one push rod. The notch is located on an end of the clamp part, and the fixed shaft can be clamped in the notch. The push rod is located on one surface of the clamp part, protrudes outward from the surfaces of the clamp part, and penetrates the casing. The clamp part moves away from the fixed shaft to disengage the fixed shaft from the notch when the push rod is pushed away from the fixed shaft.

An apparatus including a handle body, a bearing, a circular blade, and a screw assembly is disclosed. The handle body may include upper and lower covers that may be attached to each other. A proximal portion of the lower cover may include a first through-hole. The bearing may be disposed in the first through-hole. The bearing may include inner and outer walls that may rotate relative to each other. The outer wall may be connected to walls of the first through-hole. The circular blade may include a second through-hole. The screw assembly may include a screw and a nut. The screw may pass through the first and second through-holes, and attach to the nut. The screw's exterior surface connects to the inner wall, and the screw applies a tangential force on the inner wall causing it to rotate relative to the outer wall when the circular blade is rotated.