59 results about "Butterfly needles" patented technology

A device for drawing fluid from a lumen, and particularly blood from a blood vessel, is disclosed. The device may provide indication of the entry of an intravenous cannula into the lumen. The device may include a central body having an outer wall and an inner fluid passage. The device may include a luer-type adapter to permit the attachment of an I.V. infusion set of various lengths (“butterfly needle”) and or any luer-type fitting attached to an existing device. The outer wall of the central body may be transparent or translucent to permit the detection of fluid within the inner fluid passage. A front cannula may extend from one end of the central body and a rear cannula may extend from the other end of the central body. Both the front and rear cannulae may communicate with the inner fluid passage. A transparent or translucent flexible sleeve may surround at least a tip portion of the rear cannula. A venting member may be provided near a base portion of the rear cannula between the flexible sleeve and the ambient. The venting member may permit the passage of air through it, but be substantially impermeable to liquids, such as blood.

A device for drawing fluid from a lumen, and particularly blood from a blood vessel, is disclosed. The device may provide indication of the entry of an intravenous cannula into the lumen. The device may include a central body having an outer wall and an inner fluid passage. The device may include a luer-type adapter to permit the attachment of sample vial guide tube, or an I.V. infusion set of various lengths (“butterfly needle”) and or any luer-type fitting attached to an existing device. The outer wall of the central body of the flexible sleeve may be transparent or translucent to permit the detection of fluid within the inner passage. A front cannula may extend from one end of the central body and a rear cannula may extend from the other end of the central body. Both the front and rear cannulae may communicate with the inner fluid passage. An air-permeable blood-impermeable flexible sleeve may surround at least a tip portion of the rear cannula. The air-permeable blood-impermeable flexible sleeve acts as a venting member. The venting member permits the passage of air through it, and is substantially impermeable to liquids, such as blood. The flexible sleeve may be comprised of two types of material, a first material which is air-impermeable and a second material which is air-permeable blood-impermeable.

An aspiration and delivery safety system that includes a blood restriction unit, an inflating unit, a needle unit, and a puncture site press unit. The blood restriction unit is constituted by a plurality of air bands. The needle unit is a syringe or butterfly needle or blood collector or intravenous catheter or arteriovenous fistula needle. The inflating unit has a controller that monitors a patient's blood pressure and heart rate, and records these data by means of a recording device into which a medical person can also input other medical data. The puncture site press unit has disposed at the bottom thereof a haemostatic element. When applying an intravenous therapy, a needle and a soft catheter are inserted into a patient's body together. The puncture site press device holds the soft catheter during the withdrawal of the needle.

A device for drawing fluid from a lumen, and particularly blood from a blood vessel, is disclosed. The device may provide indication of the entry of an intravenous cannula into the lumen. The device may include a central body having an outer wall and an inner fluid passage. The device may include a luer-type adapter to permit the attachment of an I.V. infusion set of various lengths (“butterfly needle”) and or any luer-type fitting attached to an existing device. The outer wall of the central body may be transparent or translucent to permit the detection of fluid within the inner fluid passage. A front cannula may extend from one end of the central body and a rear cannula may extend from the other end of the central body. Both the front and rear cannulae may communicate with the inner fluid passage. An air-permeable flexible sleeve may surround at least a tip portion of the rear cannula. The air-permeable flexible sleeve may act as a venting member positioned between the rear cannula and the ambient. The venting member may permit the passage of air through it, but be substantially impermeable to liquids, such as blood.

A device for drawing fluid from a lumen, and particularly blood from a blood vessel, is disclosed. The device may provide indication of the entry of an intravenous cannula into the lumen. The device may include a central body having an outer wall and an inner fluid passage. The device may include a luer-type adapter to permit the attachment of an I.V. infusion set of various lengths (“butterfly needle”) and or any luer-type fitting attached to an existing device. The outer wall of the central body may be transparent or translucent to permit the detection of fluid within the inner fluid passage. A front cannula may extend from one end of the central body and a rear cannula may extend from the other end of the central body. Both the front and rear cannulae may communicate with the inner fluid passage. A flexible sleeve may surround at least a tip portion of the rear cannula. A venting member may be provided near a base portion of the rear cannula between the flexible sleeve and the ambient. The venting member may permit the passage of air through it, but be substantially impermeable to liquids, such as blood.

A butterfly needle assembly has a needle and a shield with wings integral to either the needle or the shield. The wings have aesthetically pleasing patterns to distract the patient during treatment. The mechanical design of the needle and shield juncture improves the stability of the assembly when inserted into a patient, as well as allowing the assembly to be disengaged with a single hand to help the caregiver avoid a needle “stick” and prevent the spread of diseases.

A device for drawing fluid from a lumen, and particularly blood from a blood vessel, is disclosed. The device may provide indication of the entry of an intravenous cannula into the lumen. The device may include a central body having an outer wall and an inner fluid passage. The device may include a luer-type adapter to permit the attachment of an I.V. infusion set of various lengths (“butterfly needle”) and or any luer-type fitting attached to an existing device. The outer wall of the central body may be transparent or translucent to permit the detection of fluid within the inner fluid passage. A front cannula may extend from one end of the central body and a rear cannula may extend from the other end of the central body. Both the front and rear cannulae may communicate with the inner fluid passage. An air-permeable flexible sleeve may surround at least a tip portion of the rear cannula. The air-permeable flexible sleeve may act as a venting member positioned between the rear cannula and the ambient. The venting member may permit the passage of air through it, but be substantially impermeable to liquids, such as blood.

A safety butterfly needle for tumor puncture is provided with a needle assembly including a needle at a distal end of a needle housing, and a connector extending out of a proximal end of the needle housing; a wing having at least one winged element and a raised tunnel member for receiving the needle housing; a needle protection device including a hollow member, a slot on the hollow member and having a cavity at one end, a needle receiving cavity at an other end, and a restricting projection on the slot; and an interconnection interconnecting the hollow member and the needle housing and including a bend. The needle protection device can be pivoted toward the needle by pivoting about the bend to pass the needle through a gap between the restricting projection and the slot until being stopped by an inner surface of the hollow member.

A butterfly needle device having a passive needle protection system includes a needle that has a proximal end, a distal tip and defines a needle axis. A cylindrical base member having an axially aligned groove is disposed over the needle with a first wing extending radially from the base member. A second wing is provided for rotation about the needle axis relative to the first wing between a closed configuration in which the wings are juxtaposed and an open configuration in which the wings are displaced from each other. A cylindrical needle guard having a plug is disposed over the needle. A spring biases the needle guard distally relative to the base member. A wing-activated mechanism is provided to align the plug with the groove after a closed-open-closed wing cycle allowing the needle guard to distally advance to cover the needle tip at the end of the cycle.

A high-safety sleeve device for butterfly needle is composed of a cover unit, a high-safety needle sleeve unit and a needle holder unit. Said needle sleeve unit is a hollow tubular body with butterfly wing part and T-shaped slide slot. Said needle holder unit with needle is a hollow tubular body with front boss, a backened for connecting traditional injector, and a step part for fixing needle unit. After the needle has has been used, the needle holder unit can be withdrawn back into needle sleeve unit.

A blood collection apparatus is provided with a blood collection assembly including blood collection tubes, adapter assemblies each including a first tube extending out of one end and a second tube extending out of the end to insert into one of the blood collection tubes, and a casing tube including a forward nose, connectors each connected to the first tube of each adapter assembly, and a rear flange having a flexible projection; a butterfly needle assembly mounted to the nose of the casing tube; and a plunger slidably disposed in the casing tube and including a forward plug and an elongated arm having cavities. A pulling of the plunger moves the plug rearward and pivots the projection to engage in one cavity so as to flow blood from the tube casing to one blood collection tube via one connector and one adapter assembly.

The present invention generally provides a device for inserting needles and alleviating the discomfort associated with needle insertion. In certain embodiments, the device is suited for injecting butterfly needles and particularly butterfly needles that are attached to infusion tubing. The patient or caregiver loads a butterfly needle with tubing attached into the base of the drive plunger. The needle with tubing attached is retracted into the housing of the device by retracting the inner plunger. Once retracted, the device is activated and ready to administer a needle into the tissue of a patient. The device is then placed on the location of the skin where injection is desired. The surface that contacts the skin may be textured and may include a contact switch that causes the device to vibrate when slight pressure is applied through contact with the skin. Two trigger buttons in the housing of the device may be depressed to eject the needle at an angle essentially perpendicular to the surface of the skin into the tissue of the patient concurrently with the textured pads contacting the skin and vibrating, distracting the patient from the needle insertion. The inner plunger of the device is then depressed toward the surface of the skin to release the needle from the device. The wings and body of the butterfly may be secured to the skin, for example, with an adhesive such as tape.

A safety protective needle cover for butterfly needle assembly is disclosed. After the covering member is pivoted toward the base, the base may be covered by an accommodating space defined by the backs of the two pivoting walls and the concave cover such that the covering member and the base are parallel with each other. The needle will not be shifted due to the shake of the patient or being hooked by dress. After the covering member is pivoted toward the vertical portion of the L-shaped needle, the vertical portion of the L-shaped needle may be covered by the concave cover to prevent nursing staff or users from being stuck.

The invention provides a butterfly needle protective sleeve and a butterfly needle assembly; the butterfly needle protective sleeve comprises a protective sleeve body used for placing a butterfly needle; a needle withdraw channel is arranged in an axial direction in the protective sleeve body; the periphery of the protective sleeve body is provided with a slide way allowing wings of the butterfly needle to slide; the slide way comprises a pair of first slots arranged close to the far end of the protective sleeve body and keeping the wings to be in a usage state, a pair of second slots arranged close to the near end of the protective sleeve body and keeping the wings in a needle withdraw state, and a pair of stereo guiding connecting slots connected between the first slots and the second slots; the two opposite first slots are arranged on a first plane; the two opposite second slots are arranged on a second plane; the first plane intersects with the second plane; the stereo guiding connecting slots guide the wings to screw into the second slots from the first slots. The butterfly needle protective sleeve and butterfly needle assembly can effectively prevent needle heads of the butterfly needle from exposing under the needle withdraw state, so subsequent medical waste processing personnel cannot be accidentally secondarily injured by the needles.

The invention discloses a disposable passive intravenous infusion apparatus with a multi-bag continuous injection pause function. The disposable passive intravenous infusion apparatus comprises a plurality of infusion bags, bottle stopper puncture devices, air filter tubes, a four-way connector, infusion pause devices, a Murphy drip kettle, a liquid filter, an infusion tube, a wheel clamping flow regulator, a scalp needle and a multi-bag liquid suspension bracket. A top hole, upper / lower side holes and a bottom hole are formed in the four-way connector which is of a cuboid structure, the upper / lower side holes are provided with check valves, and the infusion bags which are suspended at different altitudes are connected with the different holes of the four-way connector by the respective bottle stopper puncture devices. The disposable passive intravenous infusion apparatus has the advantages that intravenous infusion liquid in the multiple bags can be automatically, passively and continuously injected into a patient by the aid of static pressures of different liquid levels; a passive multi-bag continuous injection solution follows the structure and a service method of a mainstream disposable intravenous infusion apparatus to the greatest extent, and the disposable passive intravenous infusion apparatus is safe and reliable, and is low in cost and convenient to use and popularize; requirements of the patient on infusion pause and physical activities for settling physiological needs can be met by the PVC (polyvinyl chloride) infusion pause devices which are of butt nut and screw structures.

A hypodermic type needle cover assembly for covering a hypodermic type needle attached to a butterfly needle holding assembly as soon as the tip of the hypodermic type needle is withdrawn form the patient. To ensure the cover remains over the tip of the hypodermic type needle, the cover assembly includes a needle retaining mechanism that allows the needle to easily enter a needle receiving cavity of the cover assembly but provides resistance to the needle moving out of the cover assembly where it could prick and possibly contaminate a health care worker.

The invention provides a high elastic scalp needle connecting duct material, which is characterized in that the connecting duct material comprises the following components in part by weight: 80-100 parts of high polymerization degree PVC resin powder with polymerization degree of 2500, 0-20 parts of PVC resin powder with polymerization degree of 1000, 50-60 parts of plasticizer, 0.6-1.3 parts of stabilizing agent, 0.3-1.2 parts of anti-oxidant, 1-6 parts of auxiliary stabilizing agent and 0.2-1 part of lubricant. The invention has the advantages that the material has low cost and is suitable for producing a connecting duct of a scalp needle of an infusion apparatus; the material has the excellent elasticity without containing DOP.

The invention discloses a safe needle guard for a butterfly needle group. The safe needle guard for the butterfly needle group is used for sheathing one butterfly needle group, and in addition, the butterfly needle group is connected with a transfusion adapter tube. The safe needle guard comprises a connection block, wherein the connection block is provided with a through hole through which the transfusion adapter tube connected with the butterfly needle group can pass; two sides of the through hole of the connection block respectively outwards extend to form a first clamping piece and a second clamping piece; the connection block, the first clamping piece and the second clamping piece are integrally formed; the first clamping piece outwards extends on the tail end to form a first warping end part; two sides of the bottom surface of the first clamping piece are respectively provided with a notch groove; the second clamping piece and the first clamping piece are jointly and correspondingly connected to the connection block; the tail end of the second clamping piece corresponds to the first warping part to extend to the other side to form a second warping part; an open elastic needle guard opening is formed between the two warping parts on the tail end of the safe needle guard; the positions on the second clamping piece, which correspond to the notch grooves, are respectively provided with a stop valve; and a guideway which is separated into a front section and a rear section by a stop valve area is formed between the two clamping pieces.

The present invention generally provides a device for inserting needles and alleviating the discomfort associated with needle insertion. In certain embodiments, the device is suited for injecting butterfly needles and particularly butterfly needles that are attached to infusion tubing. The patient or caregiver loads a butterfly needle with tubing attached into the base of the drive plunger. The needle with tubing attached is retracted into the housing of the device by retracting the inner plunger. Once retracted, the device is activated and ready to administer a needle into the tissue of a patient. The device is then placed on the location of the skin where injection is desired. The surface that contacts the skin may be textured and may include a contact switch that causes the device to vibrate when slight pressure is applied through contact with the skin. Two trigger buttons in the housing of the device may be depressed to eject the needle at an angle essentially perpendicular to the surface of the skin into the tissue of the patient concurrently with the textured pads contacting the skin and vibrating, distracting the patient from the needle insertion. The inner plunger of the device is then depressed toward the surface of the skin to release the needle from the device. The wings and body of the butterfly may be secured to the skin, for example, with an adhesive such as tape.

The invention relates to the technical field of butterfly needles, in particular to a safe butterfly needle. The safe butterfly needle comprises a fixed cover (2), a needle body (1), and a protection cover (3), wherein the fixed cover (2) is internally provided with a cavity (21), the needle body (1) comprises a syringe needle (11) and a fin component (13), wherein the syringe needle (11) and the fin component (13) are fixedly arranged inside the cavity and are connected in the axial direction, and the syringe needle extends out of the opening of the front end of the cavity; the protection cover (3) is in a cylindrical shape, is movably arranged in the fixed cover and is arranged outside the needle body in a sleeving mode, the protection cover has a retracting position and a protecting position, the retracting position is arranged in the cavity of the fixed cover and has no influence on the work of the syringe needle, and the protecting position is moved to the front end of the syringe needle, the portion, corresponding to the fin component, of the cylinder wall of the protection cover is provided with axial slots (31), and the axial slots (31) allow the fin component to penetrate through when the protection cover moves from the retracting position to the protection position. The safe butterfly needle avoids the situation to the largest extent that liquid in the syringe needle leaks due to vibration caused by retracting and pulling operation of the syringe needle and the protection cover, and then the liquid is directly dripped on the skin of nursing personnel or the ground.

A butterfly needle assembly and method of use having a compressible member for uses such as drawing blood and infusing intravenous fluids or medication. The butterfly needle assembly also includes an intravenous needle, a body to which the compressible member is attached, a fastener for maintaining a desired position of the needle during use, an attachment mechanism and a fluid conduit in fluid communication with the intravenous needle and attachment mechanism. In use, the needle is inserted into a patient's vein. The compressible member is compressed to position the needle as desired, and the fastener is employed to secure the butterfly needle assembly to the patient in a way that maintains compression on the compressible member. The butterfly needle assembly may be further secured to the patient by an adhesive disposed on the bottom surface of the compressible member. The attachment mechanism may be attached to a container for blood collection.