safe

Real time safety management system and method

A system and method assesses and manages risk of an operation of a user. A rules engine of computer executable instructions stored in the storage device determines at least one of a safety risk measurement based on key performance indicators, an operational safety risk measurement for the operation as a function of the operational safety risk measurement information stored in a storage device and/or a conditional safety risk measurement for the operation as a function of the conditional safety risk measurement information stored in the storage device. A processor connected to the storage device executes the rules engine. An output interface connected to the processor indicates the determined safety risk for the operation.




safe

Managing safe removal of a passthrough device in a virtualization system

Methods and systems for managing a removal of a passthrough device from a guest managed by a hypervisor in virtualized computing environment. A hypervisor receives a request from the guest for access to a passthrough device. The hypervisor sets, in a memory, a last accessed state associated with a virtual machine executing the guest. The hypervisor forwards the request to the passthrough device and configures the host CPU to send a subsequent access request directly to the passthrough device. In response to a virtual machine reset, the hypervisor clears the last accessed state and instructs the host CPU to send a post-reset access request to the hypervisor.




safe

Identification and management of unsafe optimizations

Techniques for implementing identification and management of unsafe optimizations are disclosed. A method of the disclosure includes receiving, by a managed runtime environment (MRE) executed by a processing device, a notice of misprediction of optimized code, the misprediction occurring during a runtime of the optimized code, determining, by the MRE, whether a local misprediction counter (LMC) associated with a code region of the optimized code causing the misprediction exceeds a local misprediction threshold (LMT) value, and when the LMC exceeds the LMT value, compiling, by the MRE, native code of the optimized code to generate a new version of the optimized code, wherein the code region in the new version of the optimized code is not optimized.




safe

Safening composition of 6-(trisubstituded phenyl)-4-amino-2-pyridinecarboxylate herbicides and cloquintocet-mexyl for cereal crops

Herbicidal injury caused by 6-trisubstituted phenyl)-4-amino-2-pyridinecarboxylates in wheat and barley is reduced with the use of low rates of cloquintocet.




safe

Safety system for electrostimulation device

A housing for an electrostimulation device comprising a charger plug and a stimulation plug, designed to receive respectively a connector linked to a charger and a connector linked to a stimulation electrode, characterized in that it comprises a mobile locking element designed to alternately lock the charger plug or the stimulation plug.




safe

Fire and water display with integrated safety features

A system for providing a combined water and fire display is provided. More specifically, a decorative display comprises a dynamic water and fire display device where fuel/air, water, and fire are integrated. The decorative display provides for unique aesthetic qualities and an appearance wherein flames are positioned at or near the surface of a volume of water. In various embodiments, the decorative display further comprises various safety features including the ability to detect and self-regulate conditions such as the existence and/or absence of a pilot flame, an adequate amount of water, and the temperature of various portions of the system. The decorative display further contemplates the ability to operate without one or more disclosed features, such as when only a water display or only a fire display is desired.




safe

Combustible fluid cutting safety system

Embodiments of the present invention provide components and a system for providing a safer environment for using a cutting torch. The system includes a cutting torch and a control box. There is communication from the user to the control box to allow fluids to flow to the torch. The control box includes closed biased valve(s) such that if there is a condition where there is no instruction from the torch to the control box and/or power is lost, the valves will shut, preventing fluid from flowing into the torch.




safe

Extendible tourniquet cuff with stabilizer for improved utility and safety

A surgical tourniquet cuff that includes a stabilizer component that facilitates application of an overlapping cuff around the limb of a patient. The stabilizer is fixed to the cuff, and requires no tying or similar user manipulation to secure the overlapping cuff in alignment with the underlying cuff. The stabilizer improves the stability of the inflated cuff to prevent sideways shifting motion of overlapping cuff portions as the cuff is applied to the limb. The stabilizer also provides a handle mechanism to enable the user to snugly apply the overlapping cuff around the patient's limb while the overlapping portions remain properly aligned along their long axes. The stabilizer is designed to also facilitate attaching together two tourniquet cuffs end-to-end, with respective bladders overlapping and in proper alignment so that those attached cuffs can be used as a single, extended surgical cuff applied around a patient's limb.




safe

Safety device for detecting electrode breakage

The invention relates to a safety device (1) for detecting electrode breakage in an electric arc furnace, wherein an electrode (6) is secured on an electrode support arm (4), and wherein a conduit is filled with a medium under a constant pressure and a pressure drop is produced at an electrode breakage, which is detected as an alarm signal. Here, the conduit (7a-d,3) is integrated in a protective component that is arranged beneath the electrode support arm (4) thereon, wherein in case of an electrode breakage, the conduit (7a-d,3) is damaged by a produce electric arc and the pressure drop takes place.




safe

Systems and methods for safe robot operation

In various embodiments, safe collaboration between a robot and humans is achieved by operating the robot continuously at or below a first threshold speed at which any collisions with a person's arms do not cause harm, and, upon detection of the person's torso or head within a danger zone around the robot, reducing the speed to or below a second threshold at which any collisions with the person's torso or head do not cause harm.




safe

System and method of controlling fail safe for hybrid vehicle

A system and method of controlling a fail-safe for a vehicle is provided. The method includes determining, by a controller, that remaining hydraulic pressure exists in the clutch when the clutch is not opened and a target value of oil pressure for opening the clutch is maintained for a predetermined time period. In addition, whether a vehicle is stopped is confirmed in response to determining that remaining hydraulic pressure exists in the engine clutch. The controller is further configured to transmit a signal to shift to the vehicle to a neutral (N) stage to a transmission controller and shift to the vehicle to the N-stage in response to determining that the vehicle is stopped. Then, the engine is driven by the controller in response to determining that the vehicle is shifted to the N-stage.




safe

Modular intrinsically-safe field device power module

A modular, intrinsically-safe power module assembly is provided. The assembly includes a rigid conduit adapter configured to mount to a conduit of a field device. A housing, having an interior, is operably coupled to the rigid conduit adapter and is physically supported by the rigid conduit adapter. At least one non-rechargeable battery is disposed within the housing. Intrinsic safety circuitry is coupled to the at least one non-rechargeable battery, and is coupled to a connector that mates with a cooperative connector in the rigid conduit adapter.




safe

Posts for road safety barrier

A road safety barrier having a plurality of ropes supported by posts rigidly mounted on or in the ground is described. Each rope is held in tension against the posts and supported in a notch or groove in a side of the posts. The ropes are released from a post and the post is not pulled from the ground when a vertical force is exerted on the rope. The ropes when weaved are tensioned against the posts and this gives use to a combined frictional resistance to displacement of the ropes relative to each post along the length of the safety barrier. The structure of at least some of the posts and/or their mounting with respect to the ground defines a minimum bending yield strength in a direction along the length of the barrier. This minimum bending yield strength is greater than the bending moment resulting from the combined frictional resistance forces acting on the post.




safe

Surgical forceps including blade safety mechanism

A forceps includes first and second jaw members and at least one handle movable between an open position and a closed position for moving the jaw members between a spaced-apart position and an approximated position. A ratchet mechanism includes first and second ratchet components configured to engage one another upon movement of the at least one handle to the closed position to retain the jaw members in the approximated position. A knife is selectively movable between a retracted position and an extended position, wherein the knife extends between the jaw members to cut tissue therebetween. A safety mechanism is configured to inhibit extension of the knife when the jaw members are disposed in the spaced-apart position. Movement of the ratchet components into engagement with one another to retain the jaw members in the approximated position disengages the safety mechanism, thereby permitting extension of the knife.




safe

Level-two encryption associated with individual privacy and public safety protection via double encrypted lock box

Computationally implemented methods and systems are described herein that are designed to, among other things, receiving a level-one encrypted output of a surveillance device; encrypting at least a part of the level-one encrypted output of the surveillance device with a level-two encryption key whose decryption key is inaccessible by a level-two encryption entity; and transmitting a level-two encrypted output of the surveillance device.




safe

Safety mechanism for a paper stack cart system

A safety feature prevents a two wheeled electric paper lift from raising a paper tray on uneven ground that includes a tilt switch positioned in parallel with an upper limit switch that controls the height in a vertical direction of the paper tray. When a tilt angle of the paper lift is greater than 5° the tilt switch will prevent the paper tray from being raised and thereby prevent the load on the paper tray from shifting or tipping over and causing injury to an operator.




safe

Universal and restrictive enclosures for safely repressurizing sparkling wines and other carbonated beverage

The present disclosure is related to illustrative embodiments of an apparatus and method for maintaining carbonation of sparkling beverages, such as sparkling wines, cocktails, and non-alcoholic beverages such as sodas and coffee. A transparent, shatter-resistant, height-adjustable carbonation enclosure is used to contain an opened bottle of a sparkling beverage. An air-tight carbonation cap with a built-in one-way valve is used to re-carbonate the beverage inside the bottle using a pressurized gas source. The base of the carbonation enclosure includes a platform that may be used to adjust the effective height of the enclosure to fit the height of the bottle and provide an air-tight interface between an opening of the bottle and the carbonation cap. The carbonation enclosure further includes a number of openings to open air to prevent pressurization of the carbonation enclosure. Another illustrative embodiment includes a safety enclosure for multiple bottles pressurized directly by conical nozzles.




safe

Sensing safety devices

Safety apparatuses for objects having at least one nut are disclosed. Contemplated apparatuses comprise a base, one or more nut caps, and one or more electronic sensors configured to acquire data related to a corresponding nut, wheel or tire. In some embodiments, a physical nut rotation indicator that can readily be observed by an operator is included, and a retention wall disposed on the base can operate in conjunction with the physical nut rotation indicator to block a rotation of a nut. Apparatuses are preferably configured to remain stable in harsher environments.




safe

Safety bow assembly and child seat including the same

A safety bow assembly for a child seat comprises: a bow body that has opposite first and second ends; first and second connecting parts that are connected to the child seat, the first connecting part defining an accommodating space and having a side wall; and an engaging lever that is connected movably to the side wall, that is formed with an engaging element facing the accommodating space, and that is movable relative to the side wall between a first position, in which the engaging element is adapted to engage releasably a coupling part of the child seat, and a second position, in which the engaging element is adapted to be disengaged from the coupling part.




safe

Clevis type hook with safety latch

A clevis type slip hook or grab hook includes a safety latch which is held in position by a biased pin that may be axially extended to move the latch between a latching and unlatching position to close or open the slot in the slip hook. The latch is comprised of a closure member in the form of a plate having an elongate edge that fits in the hook slot between the tip end and shank end of the hook.




safe

Short circuit safety audible monitor

An electrical short circuit protection device for an electric trailer brake controller includes a fuse connected between the controller and the trailer brakes and an acoustic piezoelectric transducer connected across the fuse. Upon a short circuit fault developing in the trailer brakes, the fuse opens and the transducer generates an audio warning signal.




safe

Safety arrangement for a vehicle

The present disclosure relates to a safety arrangement for a vehicle. The safety arrangement comprises a bonnet being displaceable between a closed position, an open position, permitting access to an engine compartment of the vehicle, and a deployed position, in which position there is a gap between the bonnet and the engine compartment. The bonnet is displaceable from the closed position to the deployed position, which is located upwards and rearwards as compared to the closed position. Further, the bonnet is directly openable to the open position both from the closed position and from the deployed position.




safe

Safety gate latch

Bonded or slide on sleeve and cover devices, and replacement gate latches and methods for preventing injury with oar, fork and U-shaped gate latches that are pivotally attached to fixed support post next to an opening in a fence. The sleeves and covers and replacement oar, fork and U-shaped gate latches have enlarged blunt tips that can include bulbous, dome and ball shapes that prevent injury from children or adults that come into contact with the gate latches.




safe

Handle for an openable body section of a vehicle, including a safety device

The invention relates to a handle (2) for an openable body section of a vehicle, including: an actuator (20) such as a lever, which is movably mounted between an inoperative position of the actuator and a position for unlocking the openable body section, and a locking member (36), such as a lock bolt, which is designed to occupy an inoperative position in which same locks the actuator (20) in the inoperative position of the actuator.




safe

Magnetic latch for safety applications with adjustable holding force

A magnetic latch for industrial environments includes fixed magnetic pole pieces that may be sealed within a housing to resist environmental contamination and which provide for perpendicular engagement faces for use with gates having a rolling or swinging configuration. An RFID tag reader may be incorporated into the magnet assembly of the latch for reading a specially encoded RFID tag in a keeper portion of the magnetic latch.




safe

High-speed safety heald shaft

Guard elements (31) are provided for the corner connectors (16 through 19) of a heald shaft (10) of a shedding unit, the guard elements covering the open space formed between the two legs (26, 27) and thus providing a grip protection.




safe

Safety lanyard and manufacturing method thereof

This lanyard, which is movable by elasticity between a rest position and a stretched position, comprises a tubular sheath made from non-stretchable material, and a set of elastic threads joined to the sheath. According to the invention, the elastic threads define at least one longitudinal weaving zone in which they are woven on one surface of the sheath only, each weaving zone being proper to form a bending zone of the lanyard, in the rest position, in which the elastic threads are folded onto themselves.




safe

Vehicle rotary electric machine capable of safely starting synchronous rectification

A rotary electric machine for a vehicle that is capable of starting synchronous rectification through switching elements after having ensured absence of a short circuit fault. The rotary electric machine includes a multi-phase armature winding, a switching element set that includes a plurality of pairs of upper-arm and lower-arm switching elements to form a bridge rectification circuit together with the armature winding, an on/off-timing setter that sets on/off-timing of each switching element, a switching element driver that drives each switching element at the on/off-timing set by the on/off-timing setter; and a synchronous control start determiner that determines timing when an energization period for the upper-arm switching element and an energization period for the lower-arm switching element occur alternately as start timing of the synchronous rectification.




safe

Power supply device, power acquisition device and safety system for electromagnetic induction-powered electric vehicle

It is provided a power supply device and a power acquisition device for an electromagnetic induction-powered electric vehicle that increase a power transfer efficiency by maximizing a lateral deviation tolerance and by minimizing a gap between the power acquisition device and the power supply device while preventing the power acquisition device from colliding with an obstacle present on a road and being damaged by the collision.




safe

Ice skate blade guard with safety feature

An ice skate blade guard comprises a device for limiting/preventing falls and injury on the ice when skate blade guards are inadvertently left on when the skater enters the ice. At least one longitudinally-extending bar, blade, or other member provided on the bottom of the guard is sufficiently narrow, sharp, and/or with sharp or biting side edge(s) to bite-into the ice, upon incipient sideways movement, due to the member(s) being biased against the ice and/or due to weight of the wearer. The member(s) prevent sideways slipping, but allow forward movement. The slip-prevention member(s) may be movable in/on the guard and biased downward relative to the main body. In some versions, the slip-prevention blade(s) are fixed to the guard, rigidly and non-movably protruding from the bottom of the guard.




safe

Telescoping vehicle safety guard

A safety guard for a vehicle, such as a school or transit bus, tractor trailer or the like-type vehicle, includes a front guard positioned at an angle in front of a wheel of the vehicle that will function to push individuals and other animate objects lying in the path of the vehicle out of the path of the wheels for safety purposes, while being mounted for telescoping movement to protect the safety guard from damage upon abutting an inanimate object during operation of the vehicle.




safe

Safety device for food cutting machine

The invention relates to a magnetic safety device especially designed for use with a combined food cutting and processing machine. An assembly of elements work together to move a magnet vertically and modify the relative position of said magnet with respect to a magnetic detector/sensor located in the interior of the motor block of the combined food cutting machine.




safe

Method and apparatus for safety-compliant emptying and filling of a reagent container

An apparatus for safety-compliant emptying and filling of a reagent container (24, 40) for a tissue processor (20) comprises a suction line (30, 42) for aspirating a reagent out of the reagent container (24, 40) and a delivery line (32, 44) for filling the reagent container (24, 40) with the reagent, a terminating opening (31, 43) of the suction line (30, 42) being spaced away from a terminating opening (33, 45) of the delivery line (32, 44).




safe

Safety seat and method for reducing stress on an occupant of a motor vehicle

In a method for reducing the impact of a force upon a person seated in a safety seat of a motor vehicle at least a seat unit of the safety seat is restrained at least in part by at least one support strap. The support strap is formed with an extension piece configured to lengthen when exposed to a load as a result of an accident or explosion. A winding unit holds the support strap to shorten an effective length of the support strap and to build up a force to maintain the support strap under tension after the support strap underwent a lengthening in an area of the extension piece as a result of a load caused by a force resulting from an accident or explosion so as to reestablish an effective length of the support strap for lengthening during a subsequent force impact.




safe

Safety aileron system

Individually operable ailerons pivotable to extend a forward end below a bottom wing surface and a rearward end above a top wing surface. The extended aileron forward end increases drag and subsumes the rudder function in the turn, while the aileron rear end produces drag and airflow redirection to reduce lift on the wing. The advantage of the safety ailerons is that habitual or instinctive pilot inputs to the yoke will recover from a dropped-wing stall at low speed and altitude, while conventional ailerons require counter-intuitive pilot actions to avoid crashing in such conditions.




safe

Mast safety restraint mechanism

Described herein is a safety restraint mechanism for a mast assembly. The safety restraint mechanism comprises a tension line attached to a lever and a winch mechanism such that operation of the winch mechanism translates a carriage assembly along the mast. A cam brake including an engagement profile at a first end thereon is pivotally attached to the lever at a second end. The cam brake is also pivotally attached to the carriage assembly such that the engagement profile pivots into a brake position or a free lift position relative to a tension force acting on the lever. The lever is pivotally attached to the second end and includes a kickstand. The engagement profile having a protruded portion to abut the tubes in a brake position and a relief portion to space the cam brake from the tubes in a free lift position.




safe

Manual marine winch with safety knockout override preventing release of winch tension without the handle in the stowed position

A manual marine winch includes a safety knockout override preventing release of winch tension without the handle in stowed position. The winch includes a housing; a rotating drum on the housing; a winch line on the drum; a control for spooling and un-spooling the winch line on the drum, wherein the control includes a handle for selectively tensioning the drum and moveable between a position engaged with the drum and a disengaged stowed position; a tension holding mechanism on the housing comprising a ratchet gear coupled to the drum, a pawl selectively engaged with the ratchet gear, and a knockout configures to selectively disengage the pawl from the gear to allow for release of winch tension; and a safety knockout override coupled to the housing and selectively engaged by the handle and configured to prevent release of winch tension when the handle is not in the stowed position.




safe

Medication safety enhancement for secondary infusion

A system and method determine when fluid is not flowing properly from a secondary infusion source during a secondary infusion. The system includes an upstream pressure sensor and a processor programmed to receive signals from the sensor and analyze the signals to determine if secondary fluid flow is proper. The processor samples the output signals from the upstream pressure sensor and analyzes the sampled signals to determine if a pressure rise in the infusion line has occurred when the secondary infusion is initiated. If a pressure rise, indicating that fluid from the secondary container has begun flowing into the infusion line, has not been detected, the processor is programmed to provide a signal indicating that attention should be given to the infusion set up.




safe

Apparatus and method for implementing safe visual information provision

The invention relates to an apparatus and method which allows information representing a state or condition or an action to be performed as part of a control system to be present to one or more users. The information is selected and generated in a manner which removes or at least reduces the risk of potentially catastrophic error occurring which would be possible if, for example, the information is corrupt or lost during subsequent transmission, remote processing and/or displaying. One such use of the apparatus and method of the invention is in relation to transport vehicles and the control of the movement of said vehicles along predefined geographical paths.




safe

Railroad signaling and communication system using a fail-safe voltage sensor to verify trackside conditions in safety-critical railroad applications

A method and system for verifying trackside conditions in safety critical railroad applications by reporting the status of trackside signals and switches to a remote train control system. The system comprises at least one sensor for providing trackside conditions electrically connected to a circuit for providing trackside conditions to a railroad, said sensor being powered by voltage applied to the circuit such that the sensor is energized only when said electrical component is engaged. The system and method further comprises a method and system which is failsafe and which enables the control system to independently verify signals from each sensor.




safe

Toy crossbow projectile launcher with extendable body and safety release

A toy projectile launcher assembly has the form of a crossbow. The crossbow only launches the safety projectiles that are provided. The launcher body has a handle at a first end and diverging support arms at an opposite second end. An adjustment mechanism is contained within the launcher body for selectively adjusting the length of the launcher body. The crossbow has diverging support arms. Bow arms are attached to the support arms. The bow arms pivot from retracted positions to extended positions when a projectile is loaded into the toy crossbow. The toy crossbow has elastic loops that can only engage specialized safety projectiles with side. Furthermore, the trigger mechanism can only engage the safety projectiles provided with the toy. Projectiles without a specific tab and keyhole cannot be loaded into the toy crossbow.




safe

Hinged arm safety mechanism for foam dart launcher

A dart launcher comprises a housing, a safety arm, and a trigger. The housing includes a launching section configured to receive a dart having a minimum threshold length. The safety arm is movably attached to the housing and extends at least partially across the launching section. The safety arm is positioned so that the dart having the minimum threshold length engages at least a portion of the safety arm upon insertion into the launching section. The trigger is movable with respect to the housing and is operable to cause the dart having the minimum threshold length to launch from the launching section.




safe

Train platform safety device

Disclosed herein is a train platform safety device. The train platform safety device is installed at a position corresponding to a safety line on a subway or railway platform and is configured such that wire ropes are moved upwards or downwards depending on conditions in which a train approaches or departs from the platform, thus preventing a passenger from intentionally or unintentionally falling onto the train track. Particularly, the distances that the wire ropes move upwards or downwards are determined by rotating a rotating unit including rotating members having different diameters, whereby the wire ropes overlap each other or spread from each other. In this way, the wire ropes allow or block access of passengers depending on conditions in which a train approaches or departs from the platform, thus fundamentally preventing a safety accident.




safe

Safe portable sprayer

A safe portable sprayer comprising a reservoir for storing clean water that can be carried on the back or attached the shoulders, including a large nozzle on the upper face thereof, a small nozzle with a water pump adapted thereto, and a small neck that is provided with a cap. The cap is screwed on the nozzle, and includes a recipient that fits into the nozzle. The cap is provided with vertical holes that pass through a channel. The holes are provided with inner threads for receiving corresponding valves having lower tapered ends. Inside the recipient, flexible containers of chemicals are attached to the holes; the containers are kept immersed and compressed by water inside the recipient from the pump, such that the pressure generated by the water impels the water and chemical toward the channel of the cap, and to the spraying gun through the pipe.




safe

Suction Pump with a Safety Valve

A suction pump, in particular a breast pump, comprises a bleed valve with a bleed opening, a bleed body which seals the bleed opening and an operating means for operating the bleed body. The bleed body may be operated such that upon opening the valve initially only a partial region of the bleed opening is released and subsequently a greater part thereof or the whole bleed opening is released. The suction pump provides a large functionality with the smallest size and, furthermore, is cheap to produce and easily assembled.




safe

Logic control for fast-acting safety system

Woodworking machines with cutting tools and motors to drive the cutting tools are disclosed. The machines may be equipped with a detection system that detects a dangerous condition between the cutting tool and a person, and with a reaction system that performs a specified action upon detection of the dangerous condition. The machines also may be equipped with a control system that tests the operability of at least a portion of the detection system and/or the reaction system. The control system may disable the motor if the tested portion is inoperable.




safe

Portable low cost firearm safe

A rapid-access gun safe includes a portable enclosing structure and a communication module. The portable enclosing structure encloses a firearm. The portable enclosing structure includes a fixed portion and a collapsing wall. The collapsing wall provides rapid access to the firearm. The communication module is coupled to the fixed portion of the enclosing structure. The communication module facilitates incoming and outgoing electronic communication of at least one access signal from a device external to the rapid-access gun safe.




safe

Gun safe

A gun safe is configured to be mounted underneath a portion of an item of furniture and to be deployable from a storage position underneath the portion of the item of furniture into a readily-accessible position adjacent the item of furniture. The gun safe includes a lockable container sized to receive a weapon therein and an articulating mount configured to secure the lockable container underneath the portion of the item of furniture in the storage position. The articulating mount includes a fixed element configured to be fixed underneath the portion of the item of furniture and an articulating element attached between the fixed element and the lockable container, the articulating element being configured to facilitate movement of the lockable container from the storage position outward and upward to a deployed position adjacent the item of furniture.




safe

Safety lockout hasp with cable

A safety lockout hasp for interaction with equipment, infrastructure, machinery, appliances, tools, implements and the like. The hasp comprising a body, a cable for engaging the plant and a movable member being movable relative to the body between an open condition and a closed condition. The movable member interacting with the cable such that in the closed condition an intermediate portion of the cable is secured in its position relative to the body. The movable member also interacts with the body such that in use in the closed condition the hasp can accommodate a plurality of locking elements so that the hasp is prevented from disengagement from the plant when accommodating at least one of the plurality of locking elements, and when the movable member is in the open condition the hasp is prevented from accommodating any of the locking elements.




safe

Safety scalpel with replaceable blade cartridge and safety brake

A safety scalpel that incorporates a reusable metal scalpel handle (500) similar in shape and feel to the conventional metal handle preferred by most surgeons, and a disposable blade cartridge (300) that covers the blade (100) before, during and after use, and is easily mounted and released from the scalpel handle. The blade cartridge includes a blade (100) with similar cutting profiles as standard surgical blades, a blade holder that is permanently fixed to the blade, and a blade guard (300) that covers the blade and within which the blade holder (200) is able to slide. The scalpel handle is reusable, while the blade cartridge is disposable. The blade cartridge is attachable and detachable from the scalpel handle and may include a mechanical brake (1301) to prevent movement of the blade except when the reusable handle is in place. A safety latch feature (2230) is provided.