The biological test kit is a device for drawing and, optionally, testing biological samples. The biological test kit is an array of lancets set in wells in a rigid base. Each lancet well is covered by a protective cover which when deformed permits the lancet to puncture a user or other patient. In one embodiment the biological test kit employs distinct covers for each lancet and in another the covers are formed from sheet material formed into blisters which cover the lancet.

A self-locking retractable surgical knife including a sheath member having front and rear ends, and a retractable member including a support member and a blade supported by the support member. The support member has a front end, a rear end and an elongated interior space. The retractable member is partially disposed in the sheath member and telescopically received in the sheath member for movement between a guarded position wherein the blade is guarded in the sheath member, and an exposed position wherein the blade extends out of the sheath member. The self-locking retractable further includes a biasing member disposed in the interior space of the support member and a latch member disposed in the interior space of the support member.

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.

A safety cutting device includes a slidable insert that moves longitudinally within a cavity of a housing. The slidable insert has a cutting blade attached and moves within the housing from a safe position in which the blade is covered to an exposed position for cutting. The safety device has a release button positioned near an anterior end of the housing. A biasing member automatically retracts the blade when the release button is activated.

A scalpel handle includes an outer body defining a first end and a cavity therein and an insert defining a blade holder disposed at a first end thereof and positionable within the cavity of the outer body with the blade holder extending outwardly away from the first end of the outer portion. A shield is coupled with the body and positionable around the blade holder, and a removal wedge fixed with respect to the shield and disposed in a substantially fixed lateral position at least partially aligned with a portion of the blade holder.

An ergonomically balanced safety scalpel that includes a pair of matched handle halves slidingly cooperative into a closed position and an open position. When in use, the handle halves are slidingly positioned in the closed position to expose the blade. The handle halves are slidingly repositioned relative to each other into the open position, when the safety scalpel is not in use, to extend one handle half relative to the other handle half whereby the blade is shielded therebetween.

A scalpel handle for holding a blade includes a handle member and a blade shield for covering the cutting edge of the blade. The blade shield is connected to the handle member for movement relative thereto between a blade-covering position and an out-of-the-way position, and a finger-operable actuator is mounted upon the handle member for movement relative thereto and is connected to the shield so that by moving the actuator between first and second conditions, the shield is moved between its blade-covering and its out-of-the-way positions. An over center spring is interposed between the actuator and the handle member so that upon movement of the actuator into its second condition, the shield is biased into the out-of-the-way position and so that upon movement of the actuator into its first condition, the shield is biased into the blade-covering position.

A tonsillectomy suction dissector apparatus (100) having a proximal handle (101) and a distal curved tip (102) which has a suction channel (103) within and along the tip connecting at least one suction inlet port (105) to a vacuum port. The apparatus has a flexible cutting blade member (106) slidably retained and orientated widthwise within a corresponding slot (107) and configurable by hand operable locking mechanism (108) between an extended position wherein a distal cutting end (109) of the cutting blade member extends from the end of the tip and a retracted position. The shape and orientation of the blade allows the blade to bend within the slot when being extended for cutting.

Sheathed cutting device. An exemplary device for discreetly piercing a skin of a patient can comprise a body having a proximal end and a distal end, a cutting member attached to a plunger, the cutting member and the plunger positioned at least partially within the body, and a biasing member configured to bias the cutting member to an initial position whereby the cutting member is positioned fully within the body, wherein the plunger is slidable into the proximal end of the body, causing the cutting member to extend from the distal end of the body.

A robotic surgical tool includes a handle providing a first drive input and a second drive input, an elongate shaft extendable through the handle and having an end effector arranged at a distal end thereof, and a rack extending along a portion of the shaft and operatively coupled to a knife located at the end effector. Actuation of the first drive input transitions the rack between a locked configuration, where the rack is locked to the shaft, and a released configuration, where the rack is released from the shaft. Actuation of the second drive input with the rack in the locked configuration drives the rack and causes z-axis translation of the shaft through the handle. Actuation of the second drive input with the rack in the released configuration drives the rack relative to the shaft and thereby advances or retracts the knife at the end effector.