81 results about "Punctures skin" patented technology

A region of skin, other than the fingertips, is stimulated. After stimulation, an opening is created in the skin (e.g., by lancing the skin) to cause a flow of body fluid from the region. At least a portion of this body fluid is transported to a testing device where the concentration of analyte (e.g., glucose) in the body fluid is then determined. It is found that the stimulation of the skin provides results that are generally closer to the results of measurements from the fingertips, the traditional site for obtaining body fluid for analyte testing.

A method for lancing a dermal tissue target site includes providing a dermal tissue lancing device with a housing, a lancet that is moveable with respect to the housing, and a cap. The cap has an opening therethrough for a portion of a lancet to pass through and a continuous saddle-contoured compression surface. The continuous saddle-contoured compression surface is configured for engaging a dermal tissue target site such that, when the cap contacts and is urged towards the dermal tissue target site, the continuous saddle-contoured compression surface applies substantially uniform pressure against the dermal tissue target site. The method also includes contacting the cap with the dermal tissue target site such that the continuous saddle-contoured compression surface completely engages the target site, urging the cap towards the dermal tissue such that the continuous saddle-contoured compression surface applies essentially uniform pressure against the dermal tissue, thereby creating a target site bulge, and lancing the target site bulge.

To provide a puncture device in which a puncture needle is stuck into a predetermined region certainly and an indwelling device can be indwelled, the puncture device is provided for puncturing skin (dermis) by a puncture needle. This puncture device is provided with a puncture needle, an indwelling device indwelled in the skin by the puncture needle, a skin deforming mechanism for deforming the skin which is provided with a fixing portion having a space in an inside constituted by a bottom face portion and a peripheral wall portion 5b. In addition, an insertion portion for inserting the puncture needle is formed at the peripheral wall portion, the puncture needle is inserted from the insertion portion, and the skin deformed into the space by the skin deforming mechanism is adapted to be punctured.

The present invention relates to a biological component measurement apparatus set, in which a puncture mechanism for puncturing skin of a subject to collect a sample blood is integrated with a biosensor measurement apparatus, wherein the puncture mechanism comprises at least: a puncture needle; and a cap which is detachably engaged with a body of the apparatus, wherein the cap has a skin contact surface which is brought into contact with the skin for puncturing, the skin contact surface having an opening through which the puncture needle moves to puncture the skin, and being shaped so as to fit a surface shape of the skin to be punctured, and the set comprises a plurality of different such caps each corresponding to a different sample collection site so that a plurality of different sample collection sites can be selected.

The single use medical device includes a lancet piston slidingly and sealingly located in a bore of a lancet housing. The lancet piston operates as a positive displacement piston within the bore, allowing dispensing and/or aspiration of liquid into the bore. The lancet piston includes a sharp tip for pricking skin, and is particular applicability for allergen testing and blood or ISF sampling. The actuator device has an actuator member for releasable engagement with the lancet piston at a before-use position of the lancet piston via a clutch mechanism. The engagement of the actuator member with the lancet piston allows the actuator member to push/pull the lancet piston forwardly/rearwardly along the bore. At positions forward of the before-use position of the lancet piston, the engagement of the actuator member with the lancet piston is interlocked, assisting in the prevention of accidental needlestick injuries.

The invention provides a quasi-dry electrode used for the electroencephalogram measurement and a preparation method thereof. The electrode comprises a porous metal electrode, a liquid storage tank and an electrode cable, wherein the porous metal electrode serves as a sensor for acquiring an electroencephalogram signal; the liquid storage tank is adhered to the porous metal electrode by glue and used for storing the conducting liquid, and the conducting liquid can slowly penetrate through the porous metal electrode to keep the moist between the skin and the electrode; the porous metal electrode is connected to the metal cable. Compared with the traditional wet electrode, the quasi-dry electrode provided by the invention is convenient to use and can be used for long-time electroencephalogram measurement, besides, after being used, the electrode is washed and the skin is not needed to be cleaned; compared with the general dry electrode, the low impedance between the electrode and the skin can be kept without irritating the skin, and the electroencephalogram signal can be recorded with high quality.

The invention provides a vein puncture device and system and a vein puncture control method. The system comprises a control device and a vein puncture device; the vein puncture device and an ultrasonic probe are connected to the control device respectively; the vein puncture device is used for collecting data information of a preselected target vessel through the ultrasonic probe, and sending the data information to the control device; the control device is used for calculating position information of the target vessel according to the data information, and generating a control signal according to the position information; the vein puncture device is further used for controlling a needle body to be punctured and a hosepipe to be embedded which are fixed on the vein puncture device itself to puncture skin according to the control signal. The vein puncture device and system are low in overall manufacturing cost compared with a robot medical system, can automatically control the vein puncture device to conduct motions of needle inserting, hosepipe embedding and needle withdrawing, reduce the labor intensity of an operator, are high in locating precision coordinated with the ultrasonic probe and under the guidance of the ultrasonic probe, can achieve one-hand operation, are low in experience requirement of the operator, and can adapt to the dynamic environment.

The invention discloses a preparation method and application of a 3D print microacupuncture needle paster, and belongs to the field of biomaterials and biological manufacturing. A dual-spray-head melting deposition shaping FDM 3D printer is used, a spray head is used for printing a base of the microacupuncture needle paster, and the other spray head is used for printing a columnar array of the microacupuncture needle paster, wherein the columnar array contains insulin medicines which can intelligently respond to and adjust blood sugar. After the base and the columnar array are obtained, a slide is in contact with the top end of the columnar array, then the top end is stretched to a preset distance to produce a needle point of the microacupuncture needle, cross-linking shaping is performed,and after dewatering and drying are completed under natural state, a microacupuncture needle array paster having certain mechanical properties and containing responsiveness medicines is formed. The microacupuncture needle paster can puncture skin, can intelligently respond according to blood sugar concentration in vivo, can intelligently release loaded medicines, and can intelligently adjust thelevel of the blood sugar. In a 3D print microacupuncture needle manner, painless intelligent response type blood sugar adjustment capable of realizing skin puncture can be realized, and the 3D print microacupuncture needle paster hopefully guides diagnosis and treatment integration of diabetes.

A method is provided for the analyte measurement by a user using an analyte measurement device. A penetrating member and unused analyte detecting member of the analyte measurement device are presented into an active position. The penetrating member is fired to prick the skin and bring a fluid sample to the analyte detecting member. The analyte level is measured. These three steps occur in less than 10 seconds.

The invention belongs to the field of medical instruments and particularly relates to a percutaneous transhepatic puncture choledochoscope which comprises a puncture choledochoscope body and a sheath. The puncture choledochoscope body comprises a needle-like rigid operating end, an operating part, a light source connector, an image output end, and a drainage passage, wherein the needle-like rigid operating end, the operating part, the light source connector and the image output end are mutually communicated, and the drainage passage is used for drainage. The sheath comprises a rigid sheath end, a water inlet passage and a water outlet passage. The rigid sheath end is disposed outside the needle-like rigid operating end. The front end of the needle-like rigid operating end is provided with an optical lens and a fiber-optic output end. The percutaneous transhepatic puncture choledochoscope has the advantage of the puncture needle that the puncture needle can puncture skin and tissue to enter a human body and the advantage that the endoscope provides doctors with inside images, a doctor directly watches a monitor to operate with no need of aimless operation relying on experiences and judgments when puncturing with the percutaneous transhepatic puncture choledochoscope, and surgical safety is improved.

A needle tube having a needle tip for puncturing skin; a needle hub; and a fluid-draining portion for enabling draining of a medicine. The needle hub includes: a retention part (first member) for retaining the needle tube; an insertion part into which the output portion of a syringe is inserted; and a flange-like skin contact portion that is disposed in a manner so as to cover an area surrounding the needle tube and makes contact with and/or faces the skin when a living body is punctured with the needle tube. The fluid-draining portion is disposed in the skin contact portion of the needle hub and enables a user to drain the medicine that has spilled when removing air and is held in the skin contact portion.

The invention relates to a retraction type blood sampling device. The retraction type blood sampling device comprises a needle tube shell and a pressing cap, a cylindrical cam, a unilateral bearing, a first spring, an upper end face cam, a lower end face cam, a central shaft, a guide sleeve, a second spring and a blood sampling needle which are arranged in the needle tube. The retraction type blood sampling device can quickly and instantly puncture in a puncture process and then can quickly retract after the puncture; the instant puncture can greatly relieve the pain feel of the user; the user even has no feel after the ending of the puncture, so that the psychological burden of the user can be greatly relieved; the principle of double-spring double damping vibration is adopted in the device; in a one-time pressing process, the needle cannot pop out for puncturing the skin after the needle quickly punctures deep into the skin, so that high speed for puncture is maintained while secondary injury caused by the high speed can be avoided; the unilateral bearing only allows the lower end face cam to unilaterally advance, so that the circulating reciprocating action can be performed all the time in the pressing process; after pressing and puncturing, the device can automatically reset, so that a large amount of time can be saved.

The invention discloses a composition containing hyaluronic acid and polyhydric alcohol, and application of the composition. The composition comprises oligomeric hyaluronic acid or salt thereof, low molecular weight hyaluronic acid or salt thereof, high molecular weight hyaluronic acid or salt thereof, and a polyhydric alcohol antioxidant. The components in the invention are common raw materials in medicine; pharmacological and pharmacokinetic properties are clear; and the product is safe. According to the composition containing hyaluronic acid and polyhydric alcohol, and application of the composition in the invention, hyaluronic acid or the salt thereof is compounded and combined with the polyhydric alcohol antioxidant; the composition has the effects of moisturizing, scavenging free radicals and resisting aging, and simultaneously, can improve the transdermal absorption of water-soluble amino acid, so that the water-soluble amino acid can be absorbed into epidermis and dermis without professional equipment and a skin piercing method, is accumulated in the epidermis and the dermis, continuously provides nutrition for the skin, and gives full play to the skin care and beautifyingeffects.

The invention discloses an application of a composition containing hyaluronic acid and a polyol in improving the skin permeability of water-soluble vitamins. The composition comprises oligomeric hyaluronic acid or a salt thereof, low molecular weight hyaluronic acid or a salt thereof, high molecular weight hyaluronic acid or a salt thereof and a polyol antioxidant. The components are common raw materials in medicine, pharmacological and pharmacokinetic properties are clear, and the product is safe. According to the invention, hyaluronic acid or the salt thereof is compounded and combined withthe polyol antioxidant, the effects of moisturizing, scavenging free radicals and resisting aging are achieved, and the transdermal absorption of water-soluble vitamins can be improved, so that the water-soluble vitamins can be absorbed into epidermis and corium layers without professional equipment or a skin piercing method, and are accumulated in the epidermis and corium layers to continuously provide nutrition for the skin, thereby fully exerting the skin care and beautifying effects.

The invention provides a pain measurement device, and belongs to the field of medical facilities. The pain measurement device comprises a protruding structure and a stopping structure; the protruding structure outwards protrudes and is used for enabling pains to be generated in the skin; the stopping structure is located below the protruding structure and used for supporting the skin around an extrusion area when the protruding structure extrudes the skin. By means of the pain measurement device, the pain measurement degree of a doctor can be stably controlled, and therefore the pain measurement results are more accurate; meanwhile, the skin cannot be punctured, and pains and cross infections of a patient during pain measurement are reduced. The pain measurement device is simplified in structure and favorable for clinic operation of the doctor.

The invention discloses a weeping-proof puncture sac and a preparation method thereof, and relates to the field of medical teaching. The surface of the weeping-proof puncture sac is shaped like a lattice; three silica gel layers are arranged under the surface; the parts, at the warp and weft parts of the lattice, of the three silica gel layers are connected; a plurality of small sacs are formed at the parts, between the warp and weft parts of the lattice, of the three silica gel layers. According to a hydraulic pressure principle in the weeping-proof puncture sac, liquid cannot leaks from a needle hole in the part punctured fifty times by a needle. The weeping-proof puncture sac is more durable than a conventional puncture skin; the utilization rate is increased, the service life is prolonged, and the cost is reduced.

The invention discloses a blood glucose meter for traditional Chinese medicine, including a display screen located in the middle of the device, a control button located at the bottom of the display screen and needle jackets and test paper clips at both ends of the separating device. The collar is arranged on the top of the needle sheath, the needle sheath is connected to the device through a collar, a push rod is arranged on the left side of the display screen, a push rod is slidably connected with the device, the top of the test paper clip is provided with a protective sleeve, a t paper clipis connected with that device through a sheath. A Chinese medicinal blood glucose met the needle is located inside the needle sheath, which can effectively prevent accidental injury, and only needs topush down the push rod in actual use, then the transmission rod can drive the push block to push down, at the same time, the first spring contracts, the needle is pushed out to contact with the skinof the user, the skin is pierced and the blood is taken out, after that, the push rod can be released to contract the needle, and the collar can be rotated to remove the needle.

The invention relates to a blood sample collecting device and a kit, which can be easily used by people who do not receive medical training or learn other expertise or knowledge to alleviate pains. Two parts on a first side are provided with flexible stripes with adhesive, and an absorbent pad and a substrate with a microstructure are arranged between the two parts. The substrate comprises a microstructure which is an external surface capable of mildly penetrating or puncturing skin to make blood flow into the body of a user. The absorbent pad can receive or absorb a blood sample and support various chemical agents which can further improve the blood mobility in a collecting system. The chemical agents include anticoagulant or blood anticoagulant, thereby being beneficial to blood transfer from donors to the absorbent pad. In addition, blood preservative is available in the system for stabilizing collected blood in long-distance transportation and transfer. The blood sample collecting systems can be further provided with anesthetics for improving comfort level of use.

The invention belongs to the field of medical devices, in particular to an operation method and device for improving the success rate of vascular puncture and catheterization at one time. In order tosolve the problem of low success rate of puncture and catheterization caused by insufficient blood vessel filling. A method for puncture skin includes such step as puncturing skin and blood vessel, separating skin and blood vessel with lifting and pulling skin paste film, and using short stab needle to avoid injury of blood vessel when skin is punctured. With the aid of ultrasonic monitoring and pressure monitoring, the suction fixed catheter controller and suction fixed catheter with C-shaped cross section were used to actively control the vessel wall by suction under negative pressure to optimize the puncture diameter. The puncture needle is guided to complete the blood vessel puncture and catheterization through the suction fixation catheter C-shaped semi-embracing channel. The invention has the advantages that the certainty of successful vascular puncture and catheterization is greatly improved, and the medical safety is improved.

The invention provides an air impact type blood sampling device. The air impact type blood sampling device comprises a blood sampling main body, a controller and an air impact device, wherein the blood sampling device comprises a high-pressure gas device and is electrically connected to the controller; the air impact device is connected to the blood sampling main body through a communicating pipe. The air impact type blood sampling device solves the shortcomings that the blood sampling device is dangerous in use, and highly dangerous medical waste is generated after the use of the blood sampling device, directly puncture skin to generate bleeding point gas by utilizing an impact force of the pressurized air, and has the functions of adjusting an air output and an air output pressure.

The invention discloses a nerve block puncture medicine injection device, and relates to the technical field of medical instruments. The device comprises an infusion control device which is used for controlling the infusion speed and is provided with a puncture needle used for puncturing skin and subcutaneous tissue and injecting medicine to the periphery of nerves or fascia gaps at one end, a detachable sleeve which sleeves the outside of the puncture needle and is used for storing liquid medicine and providing a constant-speed infusion device with constant output speed, and an infusion tubewhich is arranged between the constant-speed infusion device and the infusion control device and is used for communicating the constant-speed infusion device with the infusion control device. Thus, the device is easy to operate, the operation of injecting local anesthetics can be completed by one person, the speed of injecting local anesthetics can be controlled at any time, and the problem that the operation process of nerve block anesthesia is tedious and the dosage and speed of injected drugs are not easy to control in the prior art is solved.

The invention belongs to the field of medical instruments, and particularly discloses a thoracocentesis mirror comprising a thoracocentesis mirror body and a sheath. The thoracocentesis mirror body comprises a needle-shaped hard working end, an operation portion, a light source connector, an image output end and a drainage passage which are communicated mutually. The sheath comprises a rigid sheath head and at least one passage and is disposed on the periphery of the needle-shaped hard working end; and a front end of the needle-shaped hard working end is provided with an optical lens and an optical fiber output end. The thoracocentesis mirror combines the advantage of a puncture needle capable of puncturing skins and tissue to get into a human body, and the advantage of an endoscope capable of providing inside view images for doctors; and when using the thoracocentesis mirror for puncture, the doctors no longer perform puncture depending on experience and judgment with certain blindness, but operate under direct view of a monitor, and accordingly operation safety is improved.