A medical device configured as a blood collection tube holder, the device having a body with two spaced-apart, oppositely facing, coaxially aligned needles including a forwardly facing venipuncture needle and a rearwardly facing fluid discharge needle, the two needles being held by first and second needle holders separated by a compressible fluid seal defining part of a fluid path between the two needles and the two needle holders. The body also includes a discharge needle displacement member that is manually repositioned following removal of the last blood tube holder so that the discharge needle displacement member contacts the second needle holder and displaces the second needle holder and the fluid discharge needle laterally inside the body to initiate retraction of the venipuncture needle into a rearwardly projecting needle retraction chamber.

A needle set includes a needle guard and a winged needle. The needle guard has upper and lower jaws, each of the upper and lower jaws defining a channel and coming together at a hinge. The upper and lower jaws are separated by slots in sides of the needle guard, which slots divide the sides into upper and lower side walls, respectively. The winged needle can be inserted between the upper and lower jaws, with wings of the winged needle passing through the slots. The hinge has an opening and a tube connected to the winged needle passes through the opening.

A method of making a needle guard includes providing a mold having a portion defining a volume, the volume being a hollow cylinder with non-uniform walls with a pair of slots therein, the slots being open at one end and closed at the other end, the pair of slots having a major portion of constant width. The walls are thicker at the other end than at the one end. The method includes filling the volume with polymer and releasing a molded part from said mold and cooling a molded part resulting from the filling and releasing such that temperature that the widths of the pair of slots is non-uniform after cooling. The needle guard has upper and lower jaws defining a channel and coming together at a hinge. A winged needle can be inserted between the jaws, with the wings of the winged needle passing through slots between the jaws.

A disposable lancing device contains: a first casing, a second casing, and a needle holder. The first casing includes a close segment, an open segment, a slideway, two tilted contact faces, a fixing portion, two recesses, and two push fringes. The second casing includes an accommodation chamber, two limitation extensions, and multiple drive protrusions. A forcing face is defined on the second casing opposite to the two limitation extensions, and a through hole is defined on a center of the forcing face. The through hole has a protruded rib. The needle holder includes a collection needle having a syringe needle, and the needle holder further includes a trigger spring, a return spring, and two symmetrical flexible wings. The two symmetrical flexible wings include two driving segments configured to abut against the two symmetrical flexible wings to flexibly retract inward by using the two tilted contact faces.

It is an object of this disclosure to facilitate a series of puncture-related operations in a puncture instrument. In a main case of a puncture instrument, a main rod is provided. An injector rod is mounted to a main rod and includes a lancet holder on one end side. An actuating rod is mounted to the injector rod and has an engagement component on the other end side. A first biasing member biases the injector rod toward the first end side. A manipulation component is provided so as to be slidable in and out through an opening on the other end side of the main case. A locking member is axially supported rotatably by a portion of the main rod between the manipulation component and the injector rod. The locking member includes a first engaged part, a second engaged part and a second biasing member.

An intravenous catheter introducer for medical use having a body, a frontal attachment that is disposed in transverse sliding engagement with a front part of the body, a hub tube assembly that is releasably supported by the frontal attachment, and a retractable catheter insertion needle and needle holder that are biased rearwardly by a spring offset laterally from the needle axis, whereby lateral repositioning of the body relative to the frontal attachment following vascular insertion moves a needle retraction cavity disposed inside the body into substantial coaxial alignment and causes the needle holder to be retracted into the needle retraction cavity.

A sample tube holder (40) includes an elongated body (42) with an open end (46) suitable for receiving sample vials. A lid (50) is pivotally attached to body and movable to a position over the open end. The lid includes an aperture (62) that is configured to allow a portion of a vascular access needle assembly to extend through the aperture while an access needle (20) and needle protector (34) portion of the assembly are captured and confined within the body to afford added protection against accidental needle sticks.

A medical device configured as a blood collection tube holder, the device having a body with two spaced-apart, oppositely facing, coaxially aligned needles including a forwardly facing venipuncture needle and a rearwardly facing fluid discharge needle, the two needles being held by first and second needle holders separated by a compressible fluid seal defining part of a fluid path between the two needles and the two needle holders. The body also includes a discharge needle displacement member that is manually repositioned following removal of the last blood tube holder so that the discharge needle displacement member contacts the second needle holder and displaces the second needle holder and the fluid discharge needle laterally inside the body to initiate retraction of the venipuncture needle into a rearwardly projecting needle retraction chamber.

A single use lancing device comprising: a housing (10) defining a cavity; a needle assembly (12) comprising a needle (50) and a needle holder (52) and located within the cavity; a release member (16); and a spring (14) arranged to bias the needle assembly in a forward direction relative to the release member; wherein the release member comprises retaining arms (38) and is movable relative to the housing between a primed position in which the retaining arms are arranged to cooperate with the housing to restrain the needle assembly in a primed position, and a deployed position in which the restraining arms are arranged to release the needle assembly to deploy the needle.

A blood sampling device (1) comprising a housing (10) and a lancet (50). The housing has a fixed abutment surface for holdingly engaging the lancet in a rearward primed position. The blood sampling device further comprises a trigger (22) moveable from a rest position to a fire position to release the lancet for forward movement, wherein the trigger deflects the lancet body in a direction generally transverse to the longitudinal axis of the housing such that the lancet body may move forwardly past the fixed abutment surface.