Abstract: A lancing device, including a main body and a head detachably connected to the main body. The main body includes a main sleeve, a guide sleeve fastened and inserted in the main sleeve, an inner core slidably installed in the guide sleeve, a tail cap component connected with the rear end of the inner core, a feeding pressure spring and a withdrawing pressure spring which are sleeved on the inner core, and a shoot key installed on the main sleeve. The guide sleeve is uniformly provided with several spring plates folding towards the inner core at positions close to the front end. The inner side of the front end of each spring plate contacts the outer profile of the inner core. The inner core is equipped with a stopper. The stopper is located at the rear end of the guide sleeve.

Abstract: The present invention concerns a blood withdrawal device comprising a one-piece cap and lancet and a painless impulse generator. The object of the present invention is to withdraw blood painlessly and to reduce a risk of a secondary infection. In order to achieve the object of the present invention, the blood withdrawal device of the present invention comprises a cap, a hollow body and a painless blood withdrawal device. The cap comprises a one-piece cap and lancet within which a lancet is movably combined and a hollow body for a detachable connection with a painless impulse generator or a main body of a blood withdrawal device. The hollow body comprises open ends on both side of the body thereby allowing the lancet to be detachable and the movable axis to be inserted within the body.

Abstract: A lancet device including a housing and a lancet structure having a puncturing element. The lancet structure disposed within the housing and adapted for movement between a retaining or pre-actuated position wherein the puncturing element is retained within the housing, and a puncturing position wherein the puncturing element extends through a forward end of the housing. The lancet device includes a drive spring disposed within the housing for biasing the lancet structure toward the puncturing position, and a retaining hub retaining the lancet structure in the retracted position against the bias of the drive spring. The retaining hub includes a pivotal lever in interference engagement with the lancet structure. An actuator within the housing pivots the lever, thereby moving the lancet structure toward the rearward end of the housing to at least partially compress the drive spring, and releasing the lever from interference engagement with the lancet structure.

Abstract: Lancet device including a first housing. A first guide wall is disposed within the first housing. The first guide wall includes an opening. A cap removably mounted to the first housing. A needle holding member for holding a lancet. At least a portion of the needle holding member being able to move within the opening. A first spring for biasing the needle holding member toward an extended position. The first spring surrounding a portion of the needle holding member and being disposed between the first guide wall and a shoulder of the needle holding member. A movable trigger having a first position and a second position. A movable second housing including a proximal end, a distal end and a second guide wall arranged at the proximal end. The second guide wall including an opening. A portion of the needle holding member being able to move within the opening of the second guide wall.

Abstract: Single-use blade lancet device includes a body having a rear end and a front end. A triggering mechanism has a blade tip opening and is mounted to the body. A blade member is movably mounted within the body and includes a front end and a rear end. The blade member is movable at least between a first retracted position, an extended position, and a second retracted position. A biasing arrangement biases the blade member from the first retracted position towards the extended position and then towards the second retracted position. A guiding arrangement guides the blade member while the blade member moves from the first retracted position towards the extended position and then towards the second retracted position. This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: An apparatus for penetrating a bone marrow of a bone is provided. The apparatus includes a housing comprising a handle and a trigger mechanism, a spring-loaded assembly comprising a rod and a shaft; and a connector comprising a first end operable to connect to the drive shaft and a second end operable to attach to a penetrator hub. The penetrator hub includes a penetrator operable to access the bone marrow.

Abstract: A lancing mechanism is adapted to move between a resting, cocking and a puncture position. The lancing mechanism comprises a lancet holder adapted to receive a lancet, a shaft attached to the lancet holder, at least one drive spring and at least one damping spring. The drive spring surrounds at least a portion of the shaft and drives the lancing mechanism from the cocking position to the puncture position. The damping spring moves the lancing mechanism from the puncture position to the resting position. The drive spring is located at least partially within the damping spring.

Abstract: A medical cutting device is disclosed in which a pivoted element (50) is actuated by a trigger (34) and a cutting blade (30) is attached to the pivoted element (50) by a flexible connector and cam elements (46, 49) cause the blade (30) to move in an essentially parabolic path when making an incision on a patient.

Abstract: Improved lancet configurations and protective lancet endcap configurations are disclosed. In example forms, one or more flexing cantilevers project from the lancet body for coupling with a cooperating receiver of a lancing device. A gripping handle extends from a sterility cap for ease of removal from and replacement over the lancet tip. A lancet body has a smoothly curved wave contour with at least one crest and at least one trough for engagement with a cooperating receiver of a lancing device.

Abstract: A cutting device includes an elongated shaft extending between a proximal end and a distal end. A lower portion extends from the distal end of the elongated shaft and includes an outer surface and an inner surface spaced apart from the outer surface which together form a blunt end configured as a stop so as to protect adjacent tissue. An upper portion extends from the distal end of the elongated shaft and including an inner surface. The upper portion is configured so as to be disposed opposite the lower portion. A cutting element is disposed between the lower portion and the upper portion and is configured for retractable extension beyond the distal end of the elongated shaft so as to contact tissue.

Abstract: Lancet device including a first housing. A first guide wall is disposed within the first housing. The first guide wall includes an opening. A cap removably mounted to the first housing. A needle holding member for holding a lancet. At least a portion of the needle holding member being able to move within the opening. A first spring for biasing the needle holding member toward an extended position. The first spring surrounding a portion of the needle holding member and being disposed between the first guide wall and a shoulder of the needle holding member. A movable trigger having a first position and a second position. A movable second housing including a proximal end, a distal end and a second guide wall arranged at the proximal end. The second guide wall including an opening. A portion of the needle holding member being able to move within the opening of the second guide wall.

Abstract: The invention relates to a lancet having a flat shaft (1) which has an upper side (1c) and a lower side (1b), the shaft (1) forming at a front end (2) a cutter (1a) which ends in a point (2), the cutter (1a) having on the underside (1b) two cutting edges (4), which run together at the point (2), and the shaft (1) having at least one depression (3) on its underside (1b) to receive a sample. The invention provides for the shaft, on its upper side (1c), to merge into the cutter (1a) at two edges (5) which run together at a vertex (6), and for the upper side (1c) of the cutter (1a) between the vertex (6) and the front end (2) to be curved convexly, as seen in cross section.

Abstract: The invention relates to a pricking device (1) for taking a blood sample, comprising a movable holding device (5) for pricking means (4), means (12) for driving the movable holding device and a release device (19) for releasing the pricking movement (13) of the pricking means. When the release device has been manually actuated, the movable holding device can be axially moved by a spring force of a drive spring (9) of the drive means (12), and a tensing device (22) for tensing the drive spring. Said tensing device comprises a tensing mechanism (23) comprising means (24) for axially stopping the movable holding device during the tensing of the drive spring and means (25) for working during the tensing of the drive spring enabling said pricking device to be comfortable to use even when being used several times.

Abstract: A lancing device formed from a main body and a cap. The main body is configured from a lower housing, an upper housing extending over a portion of the lower housing, and an actuator operatively engaged to the upper and lower housings with the actuator extending along the portion of the lower housing not covered by the upper housing. The upper housing further includes an actuator button, wherein a lancet may be placed within the body such that movement of the actuator from a first position to a second position away from said endcap cocks the lancet for firing, which is achieved by depressing the actuator button. Conveniently, the lancing device is configured for tactile recognition in the palm of a human hand and may preferably be operated one handed and without visual observation.

Abstract: The invention relates to a pricking device (1) for taking a blood sample, comprising a movable holding device (10) for pricking means (5), a linear guide element (11) for guiding the movable holding device, means (12) for driving the movable holding device and a release device (31) for releasing the pricking movement (6) of the pricking means. When the release device has been manually actuated, the movable holding device can be moved in a translatory manner by the drive means. Said drive means comprise a curved path (20) in which the movable holding means is directly engaged, enabling the pricking device to have a particularly simple structure.

Abstract: A lancing device comprising: a cover section, a part of which is provided with an opening; a main body held on the cover section and configured to be movable in a predetermined direction from the opening relative to the cover section; a lancing unit which is launched in the predetermined direction; and an operating section configured to launch the lancing unit when the operating section is pushed by applying a force in the predetermined direction, wherein the lancing unit is launched when the force is applied to the operating section in the predetermined direction with regulating a movement of the main body in the predetermined direction, and the main body moves, instead of pushing the operating section, by applying the force in the predetermined direction without regulating the movement of the main body in the predetermined direction is disclosed.

Abstract: A single use lancet device having a housing, with an open interior and an access opening defined therein, a lancet, with a body and a piercing tip, and disposed in the open interior of the housing so as to move between a cocked orientation and a piercing orientation, a driving assembly structured to move the lancet into the piercing orientation, and a restrictor assembly having a shoulder element and a restrictor panel operatively associated with the lancet and the housing and structured to pass over the restrictor panel upon the lancet moving from its cocked orientation to its piercing orientation, and to abut the restrictor panel upon attempted movement of the lancet back into its cocked orientation after movement into the piercing orientation, thereby preventing the lancet from moving back into the cocked orientation and preventing re-use of a contaminated piercing tip.

Abstract: A lancing device (A) includes a lancing adjustment mechanism for adjusting the lancing depth of a lancet (L) into a target portion (99) by operating an operation member (20c). The lancing adjustment mechanism is designed to provide a nonlinear relationship between the lancing depth of the lancet (L) into the target portion (99) and the operation amount of the operation member (20c). With this arrangement, it is possible to suitably adjust bleeding at the lanced portion, thereby improving the operationality of the lancing device (A).

Abstract: An arrangement for producing a sample of body fluid from a wound opening created in a skin surface at a sampling site includes at least one skin-penetration member having a first end configured to pierce the surface of the skin, and a inner lumen in communication with the first end; at least one actuator operatively associated with the at least one skin-penetration member; and at least one catalyst device configured to cause perfusion of body fluid at the sampling site; wherein the at least one actuator is configured to locate the at least one skin-penetration member so as to obstruct the wound opening while transporting body fluid through the inner lumen. Associated methods are also described.

Abstract: Disclosed is a blood lancet device including a shaft which is driven toward a lancet, a blood collection button for launching the shaft, a tensioning unit for tensioning the shaft, and a depth-adjusting unit for adjusting a puncturing depth of a needle of the lancet. The shaft is provided inside a body, tensioned by operation of the tensioning unit, and combined with the lancet at a front end thereof. The blood collection button is provided outside the shaft, elastically supported by an inside surface of the body, and arranged to protrude outward from an end of the body. The tensioning unit is arranged in line with the blood collection button. The depth-adjusting unit is combined with a front end of the body in a rotatable manner, has a hole provided in a center portion of a front surface thereof, and covers the lancet.

Abstract: A lancet device and a lancet device tip for a lancet device. The tip includes a first sleeve and a second sleeve at least partially contained within the first sleeve. The second sleeve includes a stop surface. Rotation of the first sleeve relative to the second sleeve causes the second sleeve to move at least axially without changing an overall length of the lancet device tip.

Abstract: A tissue repair device. The tissue repair device includes a tubular shaft having a longitudinal bore for delivering biological material to a soft tissue defect, and an awl having a distal end configured for microfracturing bone underlying the defect. The tubular shaft and the awl are movable relative to one another such that the awl is at least partially positioned within the longitudinal bore of the tubular shaft.

Abstract: A lancer device that enables a user to draw blood from a patient and discard the used lancet without touching it. The device also has an adjustable tip for selecting the depth of stylet penetration into the patient and a triggering mechanism that utilizes a yoke latch and a leaf spring to discharge the lancet. The lancer also has a dampening feature to reduce vibrations when the lancet is moving.

Abstract: A guarded surgical knife handle includes a handle portion with a blade holder, a chamber within the handle portion, and a slot. The guarded surgical knife handle also includes a guard having an open distal end slidably mounted within the handle portion that can slide longitudinally between an unguarded position and a guarded position. The guard is sized to surround the blade in the guarded position. The guarded surgical knife handle also includes a latch that latches the guard when the guard is slid into the guarded position and a first button that disengages the latch. The guarded surgical knife handle includes a bias member that forces the guard in a proximal direction to an unguarded position when the latch is disengaged along with a second button extending through the slot used to slide the guard in a distal direction into the guarded position.

Abstract: The invention relates to a lancing device (1) for collecting body fluid samples with a) a body (2), at the end (3) of which an endcap (4) is arranged, said endcap having a positioning surface (5) with an outlet opening (6), b) a socket (7) to receive at least one lancet (8), which is interchangeably clamped in the body (2), c) a clamping device (9) and a release mechanism (10), with which the lancet (8) is clamped inside the body (2) and the lancing procedure with the lancet (8) is initiated, the tip (8?) of said lancet emerging through the outlet opening (6) during the lancing procedure, d) an ejection device (12) to eject a used lancet (8), the endcap (4) being functionally coupled with the ejection device (12) in such a way that, when the ejection device (12) is actuated, said endcap is held pivotably on the body (2) so that it can swing out of the path of the lancet (8).

Abstract: The invention relates to a lancet magazine with a plurality of lancets for generating a puncture wound for collecting a sample of body fluid. According to the invention, the lancets in the lancet magazine are each coupled to a drive mechanism which, for each lancet, comprises at least one pretensioned drive element which, when the drive mechanism is triggered, releases mechanical energy to accelerate the lancet coupled thereto for a puncturing movement.

Abstract: A lancet carrier for an integrated lancet sensor assembly incorporating a lance cover includes an elongated body with a bottom, an open top, a body open end and a body closed end, a lancet-receiving recess with a recess bottom surface, the recess extending between the open end and the closed end, and a trough-forming member forming a trough with a trough open end in communication with the body open end, the trough-forming member longitudinally extending a predefined distance along the bottom from the body open end, the trough replacing a portion of the recess bottom surface at the body open end.

Abstract: A pricking system includes lancets for producing a prick wound, sampling devices for collecting a sample of a body fluid from the prick wound, a housing having an opening for application of a body part in which the prick wound is to be produced, a drive arranged in the housing for moving one of the lancets to produce the prick wound and to then move one of the sampling devices to the prick wound so produced, a coupling part for coupling to the drive one of the lancets for a pricking movement and then coupling to the drive one of the sampling devices for a sampling movement, the coupling part being moved, during the pricking movement and the sampling movement, respectively, from a starting position into an end position by an advancing movement, and from the end position back into the starting position by a reversing movement, respectively, and a motion control which, during the sampling movement, causes the coupling part to reach an end position that differs from the end position reached by the coupling part d

Abstract: The invention relates to a lancing device (1) for taking blood samples, comprising a housing (2), an axially displaceable lancet holder element (32) for holding a lancet (12), a lancing spring element for accelerating the axially displaceable lancet holder element (32) in a lancing direction (18), and a release element (13) for initiating a lancing procedure, in which the axially displaceable lancet holder element (32) is accelerated in a lancing direction (18) by means of the tensioned lancing spring element, wherein the lancing device (1) comprises a locking apparatus (20), which can be released by the release element (13), for locking a lancing spring element tensioning procedure.

Abstract: A puncture device is constituted such that a plunger (2) is provided with a lever (3) which is partially restricted in rotation, and a forward urging force is obtained by a contraction restorative force of a tension spring (4), and the tension spring (4) is again expanded with the lever (3) as a leverage when the plunger (2) further moves forward due to its inertia from a position where no urging force is not applied, and the plunger (2) is urged backward by a restorative force of the re-expansion. Further, a puncture needle cartridge is provided with a lancet body (203) having a puncture needle, and a puncture needle holder (201) in which the lancet body (203) is movably stored, and further, the lancet body (203) has an arm means (302) and the puncture needle holder (201) contains a to-be-latched means (303) that cooperates with the arm means (302).

Abstract: A safe simple disposable automatic blood lancet includes a casing, a lancet core, a spring and a protective bar. The ejection cavity is provided inside with a space that allows the push arm to move downwards; the protective bar is provided at the end inside the ejection cavity with a safety action portion; with the protective bar assembled, this safety action portion occupies the space in the X, Y or Z direction, so as to prevent the barb from being self-locked with the self-locking barb with the push arm moving downwards; with the protective bar disassembled, this safety action portion withdraws from the space, so as to allow the barb to be self-locked with the self-locking barb with the push arm moving downwards. The lancet core can be assembled into the locking state of ready for ejection; the blood lancet can be placed into the ejection state just by twisting off the protective bar during application, and into the locking state automatically after ejection so as to be unreusable.

Abstract: The invention relates to a piercing device for taking blood for medical analyses, comprising a base body, comprising at least one needle which is arranged therein and a tip which can be extended, comprising a needle holding element which encloses the needle at least in part and a drive unit for driving a movement of the needle together with the needle holding element with respect to the base body.

Abstract: The present invention relates to a device for performing an incision in a region of interest of a patient, said device including a blade portion for providing the incision, said blade attached to a biasing means to enact a vertical force on said blade so that the blade is biased in a retracted position, a triggering means for activating the blade to move from a previously retained pre-operating position, to an operating position where the blade contacts a region of interest of the patient thereby performing an incision, and to a post operating position, a guide means to guide a path of the blade as it moves in an operating position said blade portion adapted to engage said guide means when in an operating position, so that a path of the blade in an operating position is guided, the device further including a housing to house said device, said housing having an elongate slot at one end, where in an operating position, the blade extends therethrough said slot, and in a pre and post operating position, the blade

Abstract: A lancet device including a housing with an at least partially open interior, a cocking seat coupled with the housing and structured to define an open interior therewith, a lancet with a piercing tip moveably disposed within the open interior, and a biasing assembly engaging the lancet. The cocking seat is structured to engage the lancet and retain the lancet against a force of the biasing assembly so as to maintain a potential energy of the biasing assembly. A release element is provided to at least partially disengage the lancet from the cocking seat such that the potential energy of the biasing assembly moves the lancet relative to the cocking seat and drives the piercing tip of the lancet at least temporarily into a piercing orientation.

Abstract: A lancing device includes a housing (10, 12) for receiving in use a replaceable lancet (34) introduced into said housing, a drive (58, 59) actuable to drive the lancet momentarily to project its tip from the housing, and a nose portion (14) having an aperture through which said lancet projects when fired. The nose portion is threadedly engaged (78, 81) with the forward end (10) of the housing to allow the penetration depth of said lancet tip to be pre-set, and is resiliently deformable between a position in which it is locked against rotation and a position in which it is free to rotate.

Abstract: A lancing device includes a housing (10, 12) and a lancet holder movably mounted within the housing. The lancet holder has a forward portion defining a socket (30) for partially surrounding and retaining in use the rear portion of a lancet. A lancet release element (40, 42) can be moved forward to cooperate with lugs on the socket to expand it to allow insertion and/or removal of the lancet with minimal insertion or withdrawal force.

Abstract: A lancet device and a lancet device tip for a lancet device. The tip includes a first sleeve and a second sleeve at least partially contained within the first sleeve. The second sleeve includes a stop surface. Rotation of the first sleeve relative to the second sleeve causes the second sleeve to move at least axially without changing an overall length of the lancet device tip.

Abstract: A lancet device including a housing and a lancet structure having a puncturing tip maintained within an interior cavity of the housing. The device incorporates a bow spring which cooperates with the lancet structure within the housing, and a trigger which extends laterally through and into the housing. The bow spring is resistive to movement, and therefore maintains the puncturing tip in a retracted position within the housing. Lateral movement of the trigger into the housing, such as through a pivoting trigger operation, biases the bow spring against this resistive to deflect the bow spring and extend the puncturing tip through the forward end of the housing to achieve a puncturing position.

Abstract: A lancing mechanism is adapted to move between a resting, cocking and a puncture position. The lancing mechanism comprises a lancet holder adapted to receive a lancet, a shaft attached to the lancet holder, at least one drive spring and at least one damping spring. The drive spring surrounds at least a portion of the shaft and drives the lancing mechanism from the cocking position to the puncture position. The damping spring moves the lancing mechanism from the puncture position to the resting position. The drive spring is located at least partially within the damping spring.

Abstract: A sampling device for sampling body fluid includes a lancet for making an incision, a capillary tube for drawing-up body fluid from the incision, and a test strip affixed to an upper end of the capillary tube for receiving the fluid. An absorbent pad can be disposed between the test strip and capillary tube for spreading-out the fluid being transferred to the test strip. An on-site analyzer such as an optical analyzer and/or an electrochemical analyzer can be mounted in the device for analyzing the fluid. Alternatively, a test strip can be slid through a slot formed in the bottom end of the device so that by passing the device against the skin after an incision has been formed, the test strip will directly contact body fluid emanating from the incision.

Abstract: The invention concerns an analytical instrument for assaying body fluids, the instrument having the following features: a) a housing provided with a receiving element for engaging a body part, b) an abutment for the body part which can be moved between a release position and an operating position relative to the receiving element, c) a lancing unit having a lancing element that can pierce the body part resting against the abutment in a linear lancing stroke, d) a test tape unit having a test tape for receiving body fluid issuing from the body part, and e) a detection unit for examining the body fluid applied to a section of the test tape.

Abstract: A lancing device with a depth-adjustment mechanism including an adjustably-positioned stop surface, a movable control member operably coupled thereto, and a resiliently deflectable leg that engages the stop surface and a lancet carrier to provide a soft stop for the lancet carrier. The lancet carrier deflects the leg in a forward phase of the lancing stroke, and then the leg contacts the stop surface to stop the forward motion of the lancet carrier at an extended lancing position. The stop surface can be adjustably positioned so that different portions thereof are engaged to stop the lancet carrier at deeper or shallower positions. In example embodiments, the depth-adjustment mechanism includes a rotary dial and an extension arm of the leg, with the dial including a rotary wheel and a rotary shaft extending axially therefrom, the wheel forming the movable adjustment member, and the shaft forming the adjustably positioned stop surface.

Abstract: Lancet device includes a magnet member, a sleeve member capable of being affected by magnetic forces emanating from the magnet member, and a movable lancet holder. At least one of the following is also utilized; a lancet releaser movable at least between an initial position and a position that allows a lancet to be removed from the lancet holder and a lancet holder lock movable at least between a lock position that prevents axial movement of the lancet holder along an axial direction and an unlock position that allows the lancet holder to move along the axial direction.

Abstract: The present invention relates to a lancet device, by which a lancet can be displaced along a piercing path for generating a piercing wound in a skin surface, in particular to obtain bodily fluid for diagnostic purposes, comprising a lancet drive having drive means to generate a drive force for a piercing movement of the lancet along the piercing path in the direction toward the skin surface. According to the present invention, the lancet drive comprises a magnet, by which a magnetic retention force oriented opposite to the drive force may be generated, and the lancet drive also comprises triggering means, by which the retention force may be reduced enough that the lancet is accelerated in the direction toward the skin surface under the effect of the drive force generated by the drive means.

Abstract: A lancing mechanism is adapted to move between a resting, cocking and a puncture position. The lancing mechanism comprises a lancet holder adapted to receive a lancet, a shaft attached to the lancet holder, at least one drive spring and at least one damping spring. The drive spring surrounds at least a portion of the shaft and drives the lancing mechanism from the cocking position to the puncture position. The damping spring moves the lancing mechanism from the puncture position to the resting position. The drive spring is located at least partially within the damping spring.

Abstract: A lancing device has a charging mechanism that operates to convert an external push action by a user to an internal pull action that retracts and charges a lancet for use in a lancing stroke. In some embodiments, the charging mechanism includes a user-actuated charging push-button, a reverse charging member coupled to a lancet carrier, and a reverse-motion conversion member coupled therebetween. Depressing the user-actuated member in a first longitudinal direction causes transverse movement of the conversion member, which in turn causes longitudinal retraction of the reverse charging member and the lancet carrier coupled thereto in a second longitudinal direction opposite the first direction, thereby charging a drive mechanism of the lancing device. In other embodiments, a rack-and-pinion gear mechanism provides the same push-to-pull functionality.

Abstract: A system and method is provided for the capture of bodily fluid upon lancing of a patient. In one embodiment, the fluid sample capture aperture mesh (320) ring is placed in the pathway of a finger penetrating member (340). The aperture mesh ring has a center clearance area that allows the penetrating member to pierce the skin unobstructed. The aperture mesh ring may contain a series of fluid sampling meshes as to allow the release bodily fluid to “wick” into the fluid sampling meshes for transport to the respective sensor. The invention may also relate to a method of improving the fluidic flow through a membrane mesh structure for the transportation of bodily fluids from a point of sampling to a point of measurement.

Abstract: A lancing device includes a main body having a drive spring, hammer, trigger mechanism and a lancet holder 22. A lancet 34 may be pushed to engage in snap fit with forwardly extending arms 28 of the lancet holder. Whilst free to move axially, the lancet 36 is held against rotation and, following use, is released from the lancet holder by rotating the lancet holder to disengage the lancet from the forwardly extending arms 28 thus freeing the lancet.

Abstract: A lancing device includes a housing, a lancet carrier translational within the housing, a drive spring for propelling the lancet carrier through a translational lancing stroke, and a charging mechanism. The charging mechanism includes a first cam member that is rotatable relative to the housing, a second cam member that abuts the first cam member, is coupled to the lancet carrier, and is restricted from rotation relative to the housing, and a rotatable handle co-rotationally attached to the first cam member. Rotation of the handle rotates the first cam member with it, causing the first cam member to rotate against the second cam member, which in response traverses axially because it is restricted from rotation, thereby retracting the lancet carrier to a retracted or charged state.

Abstract: A vacuum assisted lancing system for blood extraction can include a tubular body having a vacuum chamber, a lancing mechanism configured to removably couple with a lance, a vacuum mechanism including a piston slideably coupled within the body, a release mechanism for selectively holding the vacuum mechanism in an energized state, and an opening for allowing fluid communication between the vacuum chamber and an atmosphere surrounding the vacuum chamber. The system can include structure for selectively commencing dissipation of the vacuum and a fixed or adjustable depth controller. A method of manipulating a surface for blood extraction can include coupling the lancing system to the surface, blocking the opening, creating a vacuum, moving the lance coupler from a first position distal from the surface to a second position proximal to the surface, maintaining the vacuum for a period of time, and commencing dissipation of the vacuum by unblocking the opening.