Abstract: In an embodiment, there is a safety scalpel having a handle, and a replaceable blade cartridge assembly that is releasably attached to the handle. The handle comprises a first end and a second end. The blade cartridge assembly comprises a housing that can be slideably mounted onto the second end of the handle, a blade holder that can be disposed within the housing, and a blade that can be attached to the blade holder. The safety scalpel has a resilient lock member that prevents the cartridge assembly from being detached from the handle during use.

Abstract: The invention describes a sinus balloon catheter and methods of use. Specifically a sinus balloon catheter for dilating a sinus cavity lumen is provided with a tip that can be extended. The catheter comprises a guide tube with a proximal and distal end, a sleeve member, a balloon disposed upon the sleeve member and a rounded tip arranged at the distal end and extendable along with the extension of the sleeve member.

Abstract: A tool includes a housing and a slidable blade assembly configured to move between a first, second and third positions. The blade assembly is configured to receive a removable blade, such that the blade is stored within the housing when the blade assembly is in the first position, a portion of the blade extends outwardly from the housing when the blade assembly is in the second position, and the blade is completely outside of the housing when the blade assembly is in the third position, facilitating removal from the blade assembly. The housing comprises a guide path associated with movement of the blade assembly. The guide path includes a first path portion associated with the blade assembly being in the first position or the second position, and a second path portion associated with the blade assembly being in the third position, the first and second path portions being noncontiguous.

Abstract: A key assembly includes a key: defining a retaining recess, being slideably received in a key rail, and having a key pin; a slider: with extensions, defining a pin void receiving the key pin, and being configured to both pivot and translate with respect to the key pin; the extensions slideably received in a curved slider rail.

Abstract: A cartilage trimmer according to an exemplary aspect of the present disclosure includes, inter alia, a guide pin connected to a cutter with a blade projecting from only one side of the guide pin.

Abstract: A cutting tool and method of operating cutting tool. The tool includes a support having a first side and a second side. The tool further includes a handle coupled to at least one of the first side and the second side. The handle includes a blade, wherein the handle is configured to move the blade between a first position and a second position. An alignment guide is coupled to the support. The alignment guide includes a channel configured to receive the blade positioned in the second position.

Abstract: An ocular implantation device comprises a housing having a longitudinal axis, a needle configured to receive an implant, and a plunger and a rod operatively coupled together. The plunger and the rod are disposed in the housing and are collectively, translationally moveable along the longitudinal axis of the housing. The rod is configured to be receivable within at least a portion of the needle to enable the rod to move the implant therethrough. An actuator is operatively engaged with the plunger such that movement of the actuator in a direction aligned with the longitudinal axis of the housing results in the translational movement of the plunger and the rod along the longitudinal axis of the housing in order to deliver the implant through the needle to a target site. An alternative embodiment of an ocular implantation device uses a retractable needle to deliver an implant.

Abstract: The present disclosure relates to a safety utility knife including a blade carrier that is repositionable between a safety orientation, an intermediate orientation and a cutting orientation via an actuator that is interconnected with the blade carrier via a hingable link. Once the blade carrier is repositioned to the cutting orientation, the blade carrier is automatically returned to the safety orientation anytime a cutting action is discontinued.

Abstract: The present invention publishes a knife with a replaceable blade, comprising a housing, a cover arranged on the housing and a blade carrier arranged between the housing and the cover, characterized in that, a blade which can move between an extended position and a retracted position is installed on the blade carrier, and a blade cartridge carrier is arrange around the periphery of a position adjacent to the retracted position of the blade, the blade cartridge carrier is provided with an internal space of a blade shape to place spare blades. Wherein, the cover can be connected with the housing in an open type to fix the blade carrier between the cover and the housing.

Abstract: A special automatic out the front knife device transformed as a bayonet for rifles, shotguns and pistols. Particularly this knife product is related to rifle, pistol and shotgun applications where having a knife or bayonet readily available is desired. The device is to be used with a weapon such as a rifle, shotgun or pistol and is comprised of an out-the front, encased spring activated blade component and at least one manner or way for connecting the blade component to the weapon wherein the out-the front, encased spring activated blade component which can be removably secured to the rifle, shotgun or pistol for use as a bayonet.

Abstract: The invention relates to a knife including a housing (11) inside which a blade holder (15) is movably mounted. The blade holder (15) comprises a main part (17) and least one holding part (18) which is movable between a holding position and a in replacement position. In the holding position, a blade (16) can be tightly retained in a replaceable manner in a blade seat between a first holding surface (46) of the main part (17) and a second holding surface (45) of the holding part (18), while in the replacement position, the blade (16) can be removed from the blade seat or a new blade can be mounted in the blade seat. The invention is characterized in that in at least one relative position of the blade holder (15) to the housing (11), the blade holder (15) is biased against a stop (21) by a restoring force, and in that the holding part (18) can be moved into the blade replacement position by having an abutment surface (24) on the stop (21) cooperate with a mating surface (25) on the blade holder (15).

Abstract: A heated utility knife is disclosed for heating a material to be cut in order to soften the material before cutting the material. The heated utility knife is made of a knife portion that has a blade with a distal cutting edge, and a heat source configured to direct heat to a region adjacent the cutting edge. The heat source has a head portion which sits below the cutting blade. Pulling the cutting edge across a material to be cut allows heat from said heat source to be directed to the material to be cut to soften the material prior to cutting.

Abstract: A knife is provided that includes a replaceable blade element. The knife employs a blade carrier that is fixedly interconnected to or foldable with respect to a handle. The blade carrier selectively receives the replaceable blade element that is locked into the blade carrier by way of a hook and movable pin combination. The replaceable blade element is designed to be inserted within the blade carrier quickly, easily, and safely.

Abstract: Certain exemplary embodiments can provide a retractable blade knife, which can comprise a handle and a blade. The handle can comprise a top handle scale operatively coupled to a bottom handle scale via a plurality of fasteners. The retractable blade knife can comprise a large coil spring adapted to cause the blade to thrust out from a first partially extended position to a second partially extended position.

Abstract: A utility knife including a housing (19), two parallel knife holders slidingly disposed substantially parallel to each other inside the front section of the housing; different blades (5) are positioned on the two knife holders; each push button (6) is movably disposed on top of one knife holder (3); a strip-shaped aperture (17) is provided on top of the inner wall of the housing (19); the strip-shaped aperture has two grooves (1e), parallel to each other, for receiving the two push buttons and for allowing the two push buttons (6) to slide along the two parallel grooves; and a plurality of recesses (1a) are distributed inside each groove; each push button further comprises a snap block (61), when the snap block (61) is inserted into the corresponding recess (1a), the corresponding knife holder (3) and the blade (5) are locked in position.

Abstract: A tool, such as a saw or a knife, includes a hollow handle and a blade member that is movable alternatively into a storage position or a position of use. In the storage position the blade member is surrounded by and protected within the handle. In the position of use the blade member protrudes from the handle as an extension of the handle, with the blade member being lockable in relation to the handle either into the storage position or the position of use. The end of the blade member in the direction of the handle includes a hanger for suspending the tool, the hanger protruding from the handle when the blade member is in the storage position.

Abstract: Disposable scalpel blade assembly and supporting reusable handle. The blade assembly includes a blade, blade holder and blade shield. The blade holder has a flexible arm at the rear-end, which has a protrusion-block at the arm end. The blade shield inner wall has clearance opening for the protrusion-block. When the handle is inserted, the protrusion-block extends into the clearance opening with sideward movement, so the blade and blade holder are connected. After the handle is pulled-out, the protrusion-block misaligns with the clearance opening and cannot make sideward movement so the handle cannot connect again. The blade holder first sliding channel is provided with a first front locking channel at its front-end and a deadlock channel is set in front of the first front locking channel. When the handle is pulled-out after use, the first protrusion of the blade shield shall fall into the deadlock channel to enter the deadlocking state.

Abstract: A cutter assembly has a blade holder, a blade, a slider and a screw-locking device. The blade is moveably mounted in the blade holder and has a moving direction. The blade holder has a bottom and multiple engaging segments disposed on the bottom along the moving direction of the blade. The slider is mounted slidably on the blade holder and connected to the blade. The screw-locking device is mounted on the slider and has a locking bolt and a locking sleeve screwed with each other. The locking bolt has an end selectively engaging at least one of the engaging segments.

Abstract: A surgical scalpel handle assembly system and method that requires a surgeon to actively perform a verification process known as a “time out” verification process but specifically requires sequentially moving a series of actuator knobs on a scalpel handle upon affirming each criterion embedded in the scalpel handle. The required sequential confirmation of each criterion unlocks and ejects a blade holder from a scalpel handle to a position fully engaged and ready for blade attachment, surgery and in cutting position. The assembly system and method includes exposed visual indicia on the handle that indicates red color in stand by pre-operative position and indicates green exposed visual indices upon affirming verification of “time out” criteria and thus triggering the deployment of a fully exposed, engaged, and in a ready for surgery for blade attachment in handle.

Abstract: A skinning knife includes a handle, a blade carrier coupled to the handle, the blade carrier including a mount having a mounting surface, a boss extending outward from the mounting surface, and a spring including a front portion, a middle portion, and a rear portion, the front portion secured to the mount, the middle portion bent outward from the front portion and the rear portion, and the rear portion including a free end of the spring movable relative to the mount, and a blade including a sharpened edge, a body, a slot formed through the body, and the slot includes a narrow portion and a wide portion, The blade is releasably secured to the blade carrier by interaction between the boss and the spring of the blade carrier and the slot of the blade.

Abstract: A cutter apparatus includes a housing, multiple tools mechanically coupled to the housing, at least one of the tools including a cutting device, and a slider and lock wheel mechanically coupled to the housing and configured to selectively release only one of the tools at a time from being secured within the housing.

Abstract: Pocket safety cutter devices include ergonomic blade housing and handle portions adapted to be safely folded together into compact closed configurations.

Abstract: An interconnect within an integrated circuit provides arbitration to select one of a plurality of signal inputs for connection to a signal output. The arbitration applied uses a first arbitration parameter value, in the form of a time stamp value, and, if two or more signal inputs share such a time stamp value, then uses a second arbitration parameter, in the form of a least recently granted value. The time increment applied to the time stamp value associated with each signal input when it is granted access to the signal output is selected to reflect the quality of service to be associated with that signal input. When a comparison is made between time stamp values, the lowest time stamp value is given priority. A large time increment value corresponds to a low priority (quality of service).

Abstract: A knife include a handle, button, blade with an integral tang, locking mechanism within the tang, and thrust mechanism. The blade moves between closed and open positions. The button axially slides along the handle. When the blade is in the closed position and locked, movement of the button towards the first handle end releases the locking mechanism and the thrust mechanism moves the blade to the open position. When the blade is in the open position and locked, movement of the button towards the second handle end releases the locking mechanism and the thrust mechanism moves the blade to the closed position. A knife includes a stop pin connected to a tang of a blade and a stop plate positioned within a knife handle. The stop plate has two angled surfaces. The stop pin mates with both angled surfaces and the blade is constrained from movement in two planes.

Abstract: Sensing technology methods related thereto for determining cut through of bone and a depth of penetration of a working portion of a surgical instrument (e.g., an oscillating saw blade in a cut). A first sensor outputs a first signal representative of a displacement of the cutting edge of the saw blade in the cut. A second sensor outputs a second signal representative of a force applied to the cutting edge of the saw blade. As such, monitoring the first and/or second sensor may allow for the saw to be stopped upon completion of a cut (e.g., when the saw passes completely through a medium to be cut or upon reaching a predetermined depth for the cut).

Abstract: A cutter assembly has a blade holder, a slider, an automatic locking device, a screw locking device and a blade. The blade holder has a guiding channel defined in the blade holder and having two inner edges. Multiple engaging teeth are arranged in a line along at least one of the inner edges. The slider is mounted slidably on the blade holder relative to the guiding channel. The automatic locking device is mounted on the slider and has a resilient member selectively engaging at least one of the engaging teeth. The screw locking device is mounted on the slider and has a relative travel distance between the screw locking device and the slider. The blade is mounted slidably in the blade holder and connected to the slider.

Abstract: The invention relates to a knife comprising a housing (11) and an actuator (14) that can shift a blade holder (13) carrying a blade (47) in the housing (11) between at least one safety position and at least one cutting position, the blade holder (13) being tensioned by a spring (35). The characterizing feature consists in the fact that the spring (35) is attached to the housing (11) and to a first entrainment formation (25), and that a second entrainment formation (46) is associated with the blade holder (13), which second entrainment formation can be releasably engaged with the first entrainment formation (25) such that the first entrainment formation (25) can be moved by the second entrainment formation (46) from the safety position to the cutting position by movement of the blade holder.

Abstract: A device is convertible between a knife and a fore grip of a firearm. The device has a grip body operatively connected to a blade, and an attachment member connecting the grip body to a longitudinally extending rail of a firearm. The blade converts between an extended position when the device is disconnected from the firearm to a stored position when the device is connected the rail. The blade remains oriented along the longitudinal axis of the grip body when it is in both the stored position and the extended position. The grip body remains operatively connected to the blade when the device is disconnected from the firearm and the blade is in the extended position.

Abstract: An out the front assisted knife has a casing, a blade and a secondary pusher. The casing has a secondary channel hole formed through the casing, extending axially, and disposed away from an axial inner end of the casing. The secondary pusher is axially movably mounted in the casing, protrudes out of the secondary channel hole of the casing, and axially abuts against the inner end of the blade. The secondary pusher is disposed away from the axial inner end of the casing, such that the user's hand holds at least half of the casing when pressing the thumb on the secondary pusher to extend the blade. Therefore, the user can hold the knife by the center of gravity of the knife, and thus can stably and conveniently operate the knife, thereby preventing the knife from dropping accidentally.

Abstract: A utility knife has a handle and a blade holder that holds a utility blade for selective removal and replacement of the utility blade. The blade holder is pivotally carried by the handle for pivotal movement in an arcuate path relative to the handle between a retracted position and an extended position.

Abstract: The present invention generally relates to pen cutters. Specifically, embodiments of the present invention relate to a pen cutter apparatus with an auto-retractable blade. Embodiments of the pen cutter apparatus are further comprised of a tether-hole and a blade slider button.

Abstract: A knife (1) and a knife housing (2, 4). The knife comprises the housing (2, 4), which includes a blade slider (20) which is mounted to the housing (2, 4) and is reciprocable by means of an actuating device (6) between a safety position and a cutting position, and a return element (30) for applying a return force to the blade slider (20) in the direction of the safety position. The knife further comprises a blade (10) arranged on the blade slider (20). In this arrangement the blade (10) is mounted rotatably to the blade slider (20).

Abstract: A utility knife has a handle and a blade holder that holds a utility blade for selective removal and replacement of the utility blade. The blade holder is pivotally carried by the handle for pivotal movement in an arcuate path relative to the handle between a retracted position and an extended position.

Abstract: The present invention relates to an improved blade-switchable utility knife. The utility knife comprises a housing, a blade slider, a slide actuator, a switch actuator, and a pair of blades. By switching the switch actuator, a corresponding blade is pushed and pressed by either a first auxiliary reacting portion or a second auxiliary reacting portion to remain in an operative position thereof, and is moved together with the blade slider. Accordingly, the present invention has advantages and effects of quick switch of blades for use and convenient carrying, etc.

Abstract: A slim type ballpoint pen includes, a refill, a knock part, a spring and a spring stopper disposed in a shaft tube, a front hole or front slit and a rear slit 12 continuously provided in the shaft tube, and an insertion hole into which a button is inserted in the knock part, so that writing state is maintained by moving a rear end of the knock part or a projection on the knock part forward and projecting a middle body of the button upward at a rear end of the front hole or front slit, the button including an upper body part having the smallest diameter, a middle body part having a middle diameter and a lower body part having the largest diameter, and a not-writing state is maintained by projecting the upper body part upward at a rear end of the rear slit.

Abstract: A knife includes a handle and a blade coupled to the handle so as to be movable between an open position in which the blade extends from the handle, and a closed position, in which the blade is received within the handle. An assisted opening mechanism is operatively coupled between the blade and the handle, and is configured to provide an opening-assist to the blade. An engagement mechanism is also provided, which is switchable between an engaged condition, in which the assisted opening mechanism is enabled, and a disengaged condition, in which the assisted opening mechanism is disabled such that it does not provide an opening assist to the blade.

Abstract: A sheath for use with a scalpel cutting device including a sheath body configured to cover a scalpel blade at a distal end of a scalpel cutting device. The sheath advantageously includes a slot formed therein that extends from a first end at an edge of the sheath body to a second end adjacent the scalpel blade so that the slot intersects the blade and the blade is exposed only within the second end of the slot. The slot is configured such that an angle between a guiding side wall of the slot and the scalpel blade at the point of intersection is greater than 105° and less than 180°. In another embodiment, the ratio of the length of the shortest side wall to slot width is at least 2.

Abstract: An application tip (100) for a viscous or pasty composition having a body (101) including a proximal end (102) that can be fastened onto a device for dispensing the composition and a distal end (103) that is provided with an outlet orifice (104), an internal duct (110) extending between the proximal and distal ends of the body. The internal duct (110) comprises at least one portion (112) of flat shape opening out at the outlet orifice (104) and includes adjacent grooves (113) in at least one of its sides.

Abstract: The present invention is to provide a knife including a blade and a handle, wherein the blade has a first end provided with a projection and two resilient elements, each resilient element has one end protrudingly provided with an engaging portion, and the handle has a receiving space for receiving the blade and has a first track and two second tracks provided longitudinally thereon. The projection can be movably inserted in the first track. The distance between each pair of the corresponding ends of the second tracks corresponds to the distance between the engaging portions. Thus, when the engaging portions are respectively engaged in a pair of the corresponding ends of the second tracks, the engaging portions cannot move along the second tacks, such that either the blade is completely received and positioned in the handle, or a second end of blade is extended and positioned outside the handle.

Abstract: A box cutter includes a housing with a blade slide slidably received therein. A pivotal member is pivotably connected to of the blade slide. An inclined face is defined in one of surfaces of the pivotal member and is gradually raised. The inclined face is connected to a pressing area which has two respective rounded guide portions. A spring is connected between the pivotal member and the housing to maintain the blade slide at the initial position. A button is slidably connected to outside of the cover and a spring is connected between the button and the cover. The button is moved to move the blade slide from the initial position thereof to an extended position. When the blade is cutting a workpiece, the blade is tilt and the pivotal member is pivoted by the cover so that blade slide is retracted into the housing.

Abstract: A utility tool comprising a body having a first end and a second end positioned on opposite ends of the body; a removable device; as well as a first tool and a second tool configured to be selectively coupled to each other or one of either the first end and second end of the body.

Abstract: A retractable knife includes a handle and a utility blade having a first side and a second side. The retractable knife further includes a blade holder comprising a first plate and a second plate configured to cover at least a portion of said first and second sides of said utility blade, and for supporting said utility blade. The blade holder may be telescopically movable relative to said handle between an extended position and a retracted position, and wherein the blade holder extends out from the handle in said extended position. A blade release member may be mounted on the blade holder.

Abstract: An out of front knife with an assisted opening mechanism has a handle, a blade mounted in the handle, a thumb stud that drives the blade, and an extending assembly that assists with extending the blade out of the handle. With two sliders and two springs of the extending assembly, only when the blade is intentionally pushed to move a preset distance and overcome a preset resistance, one of the springs pulls and assists the blade of the out of front knife to extend out of the handle. Therefore, the out of front knife with the assisted opening mechanism is used safely.

Abstract: A slider has an upper sliding element, a lower sliding element and a resilient tab. The upper sliding element has two first engaging segments disposed on an inner side of the upper sliding element. The lower sliding element has two second engaging segments disposed on an outer side facing the inner side of the upper sliding element and engaging the first engaging segments. A tab holding base is formed on and protrudes from the outer side of the lower sliding element and has a chamber defined in the tab holding base. The resilient tab is held in the chamber in the lower sliding element and has two legs. Accordingly, a slider having a structure in a closed condition is provided to prevent objects from entering into the chamber to interfere the operation of the resilient tab and the operation of the slider is smooth.

Abstract: A scalpel (10) having a handle assembly (16) and one of a plurality of modular blade assemblies (18). Each blade assembly includes a casing (46) within which is a retractable rod (48) having a distal end to which is permanently affixed a blade (12), and also includes a spring (56) having an unstressed state wherein the retractable rod and its blade are retracted within the casing. The handle assembly (16) includes a handle casing (20) within which is slidably disposed a handle rod (32) that is manipulatable between a retracted position and an active position with respect to the handle casing. In the active position, the handle rod's distal end engages and pushes the proximal end (66) of the retractable rod (48) to urge the blade (12) distally for performance of a procedure, while in the retracted position, the handle rod (32) permits the retractable rod (48) to self-retract within its casing (46).

Abstract: A multi-function utility knife has a housing, a blade seat forward slidably received in the housing, a blade fixed to the blade seat, a driving unit having an actuator protruding out from the housing and an actuator seat reciprocally slidable along the housing, a blade seat return spring linking the blade seat and the housing, a blade change means, and a function switch. The blade of the multi-function utility knife is also able to be either multi-levelly locked when extended or automatically retractable.

Abstract: A scalpel blade accessory and cartridge are provided wherein a tubular guard is slidable over the scalpel blade carrier between a retracted position in which the blade carrier is positioned to expose any scalpel blade associated with it for use and an extended position in which the guard covers the blade carrier and any blade thereon. The scalpel blade has a mounting slot for attachment to a lug on a standard scalpel handle for use. The blade carrier has a bridge spanning an alignment face so as to provide space for a scalpel blade between the alignment face and bridge. A blade catch cooperates with a rear end of the mounting slot to hold a relevant scalpel blade captive. The blade catch is disengagable by assembling it onto a standard handle, in use.

Abstract: A knife according to the present disclosure includes a housing and a blade. The blade includes a blade edge adapted to engage a material, and the blade is coupled to a blade shuttle. The blade and blade shuttle are substantially enclosed within the housing when the blade shuttle is in a retracted position, and the blade is extended from the housing when the blade shuttle is in an extended position. The blade shuttle is adapted to be conveyed to the retracted position based on the blade receiving a force directed substantially perpendicular to the blade edge.

Abstract: The invention relates to a knife having a blade carrier (18) on which a blade (13) is mounted, wherein the blade carrier (18) is mounted by a handle (12) so as to be movable between a safety position in which the blade (13) is arranged in the housing (11) and a cutting position in which the blade (13) protrudes from the housing (11). A blade change is possible if the housing (11) is arranged in an open position relative to the handle (12). The knife (10) comprises at least one safety device (S) by means of which a movement into the cutting position and/or the open position can be prevented. The invention is characterized in that the safety device (S) comprises an actuation element (15) that can be moved into at least one first position in which movement into the open position is locked and into a second position in which movement into the cutting position is locked.

Abstract: A utility knife includes a handle, a blade carrier, and a blade depth adjustment assembly. The blade carrier is mechanically coupled to the handle and configured to support a blade. The blade depth adjustment assembly is mechanically coupled to the handle and configured to permit a user of the utility knife to reposition components of the blade depth adjustment assembly to select one of a plurality of blade depth positions which causes the blade carrier to be repositioned along the handle depending upon which of the blade depth positions is selected.