338 results about "Blood lancet" patented technology

A compact single use lancet device wherein a lancet is movably disposed. A driving element is further provided and is structured to move the lancet into a piercing orientation wherein a piercing tip protrudes from the device and can pierce a patient's skin. A retention assembly maintains the lancet in a tensioned, ready to fire orientation and prevents both inward and outward movement of the lancet, until released by an actuator. The actuator is structured to engage a patient and be urged inwardly into the housing in order to bring about the release of the lancet from its tensioned, ready to fire orientation and result in driven movement of the lancet into the piercing orientation. A protective cover is also included to engage the lancet and shield a piercing tip thereof, as well as to shield the actuator and prevent inward movement of the actuator as a result of the protective covers engagement with the retained lancet.

This invention relates to a blood lancet device that is used to collect a small quantity of blood from a human body. More specifically, it relates to a blood lancet device that: can control the depth of the lancet needle's penetration of the skin; can push the lancet to eject; can accurately collect blood by ensuring linear motion; and can reduce the pain involved in blood collection.

A disposable incision safety lancet is provided, including a casing (2) and a trigger. It is characterized in that the casing (2) is provided inside with an incision blood-taking mechanism composed of a cam (3), a main swing arm (4), a secondary swing arm (5), a blade (1) and a spring (8). The present invention combines the two arc-shaped tracks obtained from the two swing mechanisms, the main swing arm and the secondary swing arm, via the cam and a toggle pin provided on the cam effectively and interlockingly, thus making the point of the blade incise along a V-formed path composed of two arcs of different shape connected with each other. Compared with the prior art single-swing-arm structure of the incision blood-taking mechanism, such a double-swing-arm structure can move with higher accuracy and controllability. An incision of different blood-taking depth and blood-taking width can be designed by means of changing the difference of change of the radius of curvature of the flange of cam (3) as well as changing the swing radius of the main swing arm (4) and the secondary swing arm (5), which is especially suitable for taking blood from infants' heel.

The invention discloses a disposable anti-pricking venous blood sampling needle which comprises needle sheath, a venous needle tube, a needle handle, a fine hose, a needle seat, a puncture needle seat, a blood sampling needle tube, a rubber sheath and an anti-pricking sheath. The venous needle tube, the needle handle, the fine hose and the needle seat are sequentially connected via adhesive, the puncture needle seat and the blood sampling needle tube are adhered via adhesive, the needle sheath is sleeved on the needle handle, the puncture needle seat is connected in the needle seat in a screwed manner, and the rubber sheath protects the blood sampling needle tube therein and is sleeved at the other end of the puncture needle seat in a clamped manner. The disposable anti-pricking venous blood sampling needle is characterized in that the anti-pricking sheath is sleeved on the fine hose in a clamped manner and can slide on the fine hose back and forth, two sides of the anti-pricking sheath are folded in a pressed manner and then are fastened, after fastening, the rear of the anti-pricking sheath forms a closed ring, and a tortuous slot is axially formed on the side wall of the front of a fastener. After the needle is withdrawn, only the needle handle is required to be pulled back into the anti-pricking sheath, and the problem that the needle with blood accidentally pricks others to cause infection can be avoided, so that protection to medical staff is strengthened.

The invention discloses a puncture device causing less pain. The puncture device comprises a blood taking needle, a rod head, a rod body and a tail rod, wherein the rod head is fixed to the front end of the rod body; the tail rod is arranged at the back end of the rod body; an ejection assembly is arranged in the rod body; a needle seat is movably connected in the rod head; a handle rod of the blood taking needle is connected in the needle seat; the front end of an ejection rod in the ejection assembly is over against a carrier rod communicated with the back end of the needle seat. In the puncture device causing less pain having the structure, the ejection device is separated from the needle seat of the blood taking needle, thereby interrupting deviation shake caused by ejection of the ejection device in the transmission process of the needle seat, preventing the phenomenon of shake or deviation of the blood taking needle in a skin contact process, and reducing pain of a patient. Moreover, by improving an indicating sleeve and the tail rod, the infection risk of an operator is further lowered, the operation efficiency is increased, and the manufacturing cost is reduced.

The embodiment of the invention discloses an automatic vein blood sampling device and a using method thereof. The automatic vein blood sampling device comprises: a rack; a first driving assembly provided with a first output end, wherein the first output end is configured to move in a plane, and the first output end can rotate around a rotating shaft perpendicular to the plane; a vein imager fixedly mounted at the first output end; a second driving assembly mounted at the first output end and provided with a second output end, wherein the second output end can ascend, descend and rotate relative to the first output end; a needle tube assembly comprising a blood taking needle and mounted at the second output end, wherein the blood taking needle can slide relative to the second output end; and a control assembly for controlling the first driving assembly, the vein imager, the second driving assembly and the needle tube assembly to work. The device makes the first driving assembly and thesecond driving assembly simply and conveniently adjust and control the blood taking needle, and avoids excessive coupling between front movement and rear movement.

The invention relates to the technical field of medical instruments, in particular to a blood collection pen and a blood collection component. The inside of a pen body of the blood collection pen is provided with an ejection rod and an elastic device. A bogging key and a key are arranged on the pen body. The bogging key is capable of moving backwardly along the axial direction of the pen body so that the ejection rod is driven by the elastic device to move backwardly along the axis direction of the pen body, is capable of contacting with the key or the pen body. The key is capable of moving downwardly along the axial direction perpendicular to the pen body so that the ejection rod contacting with the key or the pen body is driven by the elastic device to move forwardly along the axis direction of the pen body. The inside of the pen body is provided with a guide device extending along the axis direction of the pen body. The guide device is capable of limiting the movement of the ejection rod along the axis direction perpendicular to the pen body. The blood collection component comprises a blood collection needle and the blood collection pen. The invention is aimed at providing the blood collection pen and the blood collection component to solve the technical problems in the prior art that the structure is complicated, the single-hand operation of a user is not easy, and the positioning precision of the ejection rod is not high.

A safety blood lancet consists of a head and a body, and is characterized in that the head and the body are in plugging connection, a push rod is arranged at the connecting end of the head, a plugging slot is arranged at the connecting end of the body and consists of a slide slot, a transitional slot and a lock slot connected sequentially, a latch is arranged at the end of an elastic arm of an ejecting rod, a tongue is arranged in the front of the latch, and a hook is arranged at the back of the latch. The width of the latch is larger than that of the push rod, the width of the slide slot and the lock slot is larger than that of the latch, and the width of the transitional slot is larger than that of the push rod while smaller than that of the latch. A stop shoulder is formed at the joint of the slide slot and the transitional slot, a lock shoulder is formed at the joint of the transitional slot and the lock slot, and a push bevel is arranged at the end of the push rod or/and the tongue. Plugging connection of the head and the body and safety in use of the blood lancet are combined in the technical scheme, and possible problem about safety during use of the blood lancet is solved by the plugging structure between the head and the body of the safety blood lancet.

The invention provides a blood collection needle, comprising a needle tube base, a needle tube, a base, a sliding mechanism and a needle tube sheath, the first end of the needle tube base is connected to the needle tube, the second end of the needle tube base is connected to the base, and the needle tube sheath is fitted on The first end of the needle tube seat is in contact with the first end of the sliding mechanism, the second end of the sliding mechanism is movably connected with the base, the needle tube seat is sleeved in the cavity of the sliding mechanism, and the size of the second end of the sliding mechanism is smaller than the needle tube The size of the first end of the seat, the sliding mechanism can slide relative to the needle tube seat, the first end of the needle tube seat is provided with a card slot, and the second end of the sliding mechanism is provided with a card protrusion, when the sliding mechanism slides to the second end of the sliding mechanism When the position is in contact with the first end of the needle tube seat, the locking protrusion is locked into the locking groove, and the sliding mechanism completely wraps the needle tube. The lancet can effectively prevent acupuncture.

The invention discloses a safety type blood collection needle structure which comprises a shell, a needle bar fixing rod located in the shell and a blood collection needle fixed to the top end of the needle bar fixing rod. The top end of the shell is provided with a needle outlet. The needle bar fixing rod is disengaged from the shell and arranged inside the shell, or a connector with a gap prone to breakage is arranged between the needle bar fixing rod and the shell. According to the safety type blood collection needle structure, the blood collection needle is fixed into the shell, unreasonable exposure of the blood collection needle before being used can be avoided, when the blood collection needle is used, the tail of the needle bar fixing rod is triggered to push the blood collection needle, or the gap prone to breakage is broken, and the blood collection needle can be pushed to penetrate through the needle outlet to conduct blood collection. The safety type blood collection needle structure is simple in structure and low in cost, the purpose of single hand operation and/or being used with a matched lancing device can be achieved in match with different structures, the safe blood collection operation can be effectively guaranteed, and the safety type blood collection needle structure is applied to the field of medical instruments.

Disclosed is an adjustable tip for a blood lancet device that is adjustable between several distances for varying the depth of skin puncture by a lancet needle. The adjustable tip includes a sleeve having a helical groove with spaced depressions and an end cap placed over and attached to the sleeve. The end cap includes a lug that fits with the helical groove of the sleeve to secure the end cap to the sleeve.

The invention relates to a rapid retraction mechanism of a blood collection pen, which includes an auxiliary excitation member, a needle holder fixing member, a needle holder, an excitation member, an excitation spring and a return spring, and a return spring is arranged in the auxiliary excitation member; the needle holder firmware member is worn on the Inside the auxiliary excitation component; an excitation platform is provided on the auxiliary excitation part; the needle holder fixing member includes a needle holder connection section, a return guide section and a return guide section; a needle holder is installed on the needle holder connection section; a return guide arm is provided on the return guide section , the return guide section is inserted in the excitation member; the excitation element includes the excitation element body and the excitation rod; the return guide section is inserted in the return guide hole of the excitation element body; the excitation elastic arm and the excitation element supporting platform are arranged on the excitation element body ; Set the excitation spring on the excitation rod. Advantages: the time for the lancet to stay in the skin is reduced, and the patient's pain is reduced; the invention also has the advantages of simple structure, reasonable design, and convenient assembly.

A safety blood lancet sleeve comprises a sleeve member and a lancet holder. The sleeve member is provided with an inner guide channel and an outer guide channel penetrating the sleeve member. The lancet holder is disposed inside the sleeve member and comprises a base. The base is provided with a bottom protrusion corresponding to the inner guide channel and a bottom hole corresponding to the outer guide channel; a positioning member penetrating the outer guide channel is inserted into the bottom hole. the moving range of the bottom protrusion is limited through the inner guide channel; the moving range of the positioning member is limited through the outer guide channel; accordingly, the needle holder in the sleeve member is limited by the bottom protrusion and the positioning member inserted into the bottom hole and is able to move within the range of the inner and outer guide channels only.

The invention discloses a novel blood sampling patch, which is made of a PU (Poly Urethane) material and is designed and manufactured according to a sterile blood sampling rule. A PU film has the advantages of waterproofness, air permeability, no sensitization, high elasticity, transparency and antibiosis. The entire blood sampling patch is a rectangle of which the length is 7 centimeters, the width is 6 centimeters and the edges are circular beads. In a water absorbing pad of which the length is 3.5 centimeters and the width is 3 centimeters, V-shaped stripping bottom paper with the width of2-3 centimeters and the length of 7 centimeters is designed particularly, an open side is overlapped with a bottom edge, and a folded side is close to the long side of the water absorbing pad. After a blood sampling needle is inserted, the three sides of the blood sampling patch adhere to the skin and cover a needle eye, so that infection is prevented. During needle pulling, the blood sampling needle is prevented from adhering to the blood sampling patch since the V-shaped stripping bottom paper is used for partitioning. After the needle is pulled out, the V-shaped bottom paper is stripped off, and the four sides of the blood sampling patch adhere to the skin, so that the needle eye is prevented from being infected. The PU film is soft and comfortable, and is particularly suitable for protecting during elbow blood sampling. The PU film is transparent and perspective, so that the bleeding stopping situation on the needle eye, swelling, infection and the like can be observed conveniently. The novel blood sampling patch can be kept for over 24 hours.

The invention relates to the technical field of blood taking needle packaging, in particular to a blood taking needle taking and distance changing device. The blood taking needle taking and distance changing device comprises a rack, an operating platform arranged in the middle of the rack, a blood taking needle conveyor arranged on the operating platform, a blood taking needle taking mechanism arranged on the rack above the operating platform, a tube supporting mechanism and a distance changing mechanism, wherein the tube supporting mechanism and the distance changing mechanism are arranged onthe two sides of the operating platform in the width direction correspondingly; the blood taking needle conveyor is used for placing blood taking needles at intervals and conveying the blood taking needles to the position under the blood taking needle taking mechanism; the tube supporting mechanism is used for horizontally supporting needle handles of the multiple blood taking needles located under the blood taking needle taking mechanism; and the blood taking needle taking mechanism is used for clamping the multiple blood taking needles and moving the blood taking needles to the distance changing mechanism, and the distance changing mechanism is used for adjusting the distance between every two adjacent blood taking needles and transferring the blood taking needles to the next procedure.The blood taking needle taking and distance changing device is compact in structure, small in occupied space, high in operation efficiency and capable of preventing damage to the blood taking needles.

The invention provides a production process of disposable blood lancet and device thereof, the production process comprises needle-arranging, impact-bending formation, needle-transferring, and injection molding, the specific step is as follows: 1) piling up naked processed blood lancet in a needle arrangement, wherein a magnetic needle-arranging support module passes through the bottom of the needle arrangement, the naked blood lancets are arranged on the magnetic needle-arranging support module; 2) impact-bending formation, wherein the magnetic needle-arranging support module is sent into a punch press through a positioning chute, a male module punch head on the punch press executes the bending formation to the naked blood lancets arranged on the magnetic needle-arranging support module;3) needle-transferring, wherein the magnetic needle-arranging support module is removed from the punch press along the positioning chute, manual or mechanical hand can pick up the entire row of nakedblood lancets on the magnetic needle-arranging support module by using a magnetic needle transferring machine, then the entire row of naked blood lancets is arranged on the injection module; 4) injection molding, wherein the injection module is compounded to perform injection molding, then the module is opened to manufacture the semi-finished product of the blood lancet, the finished product can be obtained by shearing, deburring and packaging the semi-finished product.

The invention relates to the field of blood taking needle production, in particular to a blood taking needle and safety needle cap automatic assembling machine. The automatic assembling machine comprises a first workbench, a second workbench, a support frame, a conveying groove, a feeding mechanism, a reversing mechanism and a fixing die; the first workbench is provided with the second workbench;the support frame is obliquely arranged, the end, in the lower position, of the support frame is connected with the second workbench, and the support frame is provided with the conveying groove, the feeding mechanism and the reversing mechanism which are all obliquely arranged; the input end of the conveying groove is provided with the feeding mechanism, the output end of the conveying groove is provided with the reversing mechanism, and the output end of the reversing mechanism is provided with the fixing die; and the fixing die is provided with at least one placement hole for allowing a blood taking needle to be placed. According to the blood taking needle and safety needle cap automatic assembling machine, conveying is conducted on the conveying groove with a gentle slope, then, blood taking needles are fed into the reversing mechanism to be turned over, then, safety needle caps are made to slide into the fixing die, and safety needle cap automatic assembling is carried out.

The invention discloses a negative-pressure type blood collection needle, which is high in blood collection speed, light in pain feeling and high in blood flow rate. A sucking disc, which can implement negative-pressure adsorption, sleeves the front end of a pricking needle. At present, we are always seeking a blood collection technical scheme which is capable of relieving pain feeling relatively obviously in medical and technical fields, however no substantial progress has been made up to now. With the application of the negative-pressure type blood collection needle provided by the invention, pain in a patient can be obviously relieved in blood collection, and meanwhile, a blood collection success rate and test accuracy can be remarkably improved. The negative-pressure type blood collection needle, when used for collecting blood, is not deep in prickling, and a needle hole is small since the needle is small in diameter. The blood collection needle is high in blood outflow speed and high in flow leakage rate since skin around a blood collection point is under a negative-pressure expanded congestive state; and due to the design of a sealed cavity structure, collected blood is isolated from ambient air, so that a probability that a blood sample is polluted is reduced.

The invention discloses a multifunctional blood collection and transfusion machine, aiming at solving the technical problems of achieving integrated blood collection, sample storage and blood donor identification so as to realize the safe and efficient purpose. The multifunctional blood collection and transfusion machine comprises a blood collection needle, wherein an outlet of a blood collection bag is connected with a second catheter, the second catheter is connected with an inlet of a blood plasma storage bag and an outlet of storage liquid through a first three-way tube, a fourth catheter and a fifth catheter, a first switch clip is arranged on the fifth catheter, more than two separable blood sample collection tubes are connected between the blood collection needle and the blood collection bag through a shunt, a second switch clip is arranged on a sixth catheter between the shunt and the blood sample collection tube, a third switch clip is arranged on the first catheter between the shunt and an inlet of the blood collection bag, a sampling needle is arranged on the blood sample collection tube, and the sampling needle is connected with the sixth catheter. Compared with the prior art, the shunt is arranged between the blood collection needle and the blood collection bag to shunt a blood sample so as to achieve the functions of reserving the initially collected blood and the blood retained in the catheter after the blood collection is stopped.