54 results about "Venous puncture" patented technology

The invention belongs to the technical field of medical treatment, and discloses a laryngeal membrane implantation system combined with a central vein puncture device, which comprises a self-retaining laryngoscope, a hollow puncture needle, a catheter sleeved on the puncture needle, a skin expander, a metal guide wire, a central vein catheter, a non-absorbable suture and a laryngeal membrane. The puncture needle penetrates into the laryngeal cavity, and the catheter is retained. And guiding by using a metal guide wire, expanding the skin by using a skin expander, and smoothly placing into the central venous catheter. The central venous catheter is pulled out of the self-retaining laryngoscope, and the non-absorbable suture is reversely arranged along the tip of the catheter, so that the suture smoothly penetrates out of the larynx from the inside of the larynx to the outside of the larynx, the laryngeal membrane is firmly fixed on the larynx, and further adhesion of vocal cords is avoided. Components required by the invention are simple and easy to obtain. Compared with a traditional method, the method is simple and easy to operate, saves operation time and is easy to popularize nationwide.

The invention belongs to the technical field of medical instruments, and relates to a vein puncture pretreatment device and an implementation method. The device comprises an identification structure, a hot compress structure and a filling degree judgment structure, by arranging the filling degree judging structure, blood vessel data information collected by the blood vessel information collecting module can be compared with a preset standard blood vessel filling degree feature library, and whether the blood vessel filling degree of a patient reaches the puncture standard or not is judged. The device is further provided with a rolling structure, the skin of the punctured part can be further softened in an auxiliary mode, the filling degree and elasticity of blood vessels are improved, compared with a single hot compress means, the auxiliary modes are more diversified, and the difficulty of venipuncture can be better reduced.

The invention discloses a patient venipuncture auxiliary guiding device based on intelligent visual identification, the device is provided with a limb placing plate, the limb placing plate comprises a bottom plate and a silica gel lining plate, and a comfortable placing position can be provided for the limbs of a patient. The linear guide rail is installed on the right side of the top of the limb placing plate. The electric control sliding block can slide on the rail. The Z-axis lifting mechanism is connected with the electric control sliding block, the servo motor drives the lead screw to rotate, and the movable sleeve drives the right-angle type blood vessel imaging mechanism to ascend and descend in the vertical direction. The right-angle type blood vessel imaging mechanism is composed of two supports, a top blood vessel imager and a side blood vessel imager are embedded in the supports, imaging ports face the upper surface and the side face of the limb to be punctured respectively, and the direction and the depth of blood vessels can be clearly shown. In addition, a controller is installed on the side wall of the bottom plate and can control an electric control linear guide rail, an electric control sliding block and a servo motor, medical workers are assisted in accurately finding the blood vessel position, and the success rate of venipuncture is increased.

The utility model discloses a deep vein puncture training simulation device, which comprises a puncture training platform, a dummy man device and a puncture training device, the dummy man device comprises a dummy man body and simulated deep veins distributed in the dummy man body, and each simulated deep vein is filled with simulated blood. The surface of the simulation human body is coated with a transparent observation layer through which all the simulation deep veins can be observed; a body position adjusting device is arranged on the puncture training table; the puncture training device comprises a puncture training needle and a puncture feedback device; teaching and training requirements of different body positions can be met by adjusting the body position of the simulated human body, all simulated deep veins can be observed through the transparent observation layer, and puncture results can be fed back in time when puncture training is conducted through cooperation of the puncture training needle and the puncture feedback device. When puncture fails, failure causes can be known through observation of the transparent observation layer, so that trainees can adjust and correct in time, and accuracy, training efficiency and quality of puncture operation are improved.

Embodiments described herein relate to a shunt for treating an aortic aneurysm. In some embodiments, the shunt may include a central portion, an arterial sealing structure, and a venous sealing. In some embodiments, the venous sealing structure may have a lateral length in its deployed configuration, and the arterial sealing structure having a lateral length in its deployed configuration that is greater than the lateral length of the venous sealing structure. A method of implanting the shunt may include selecting the shunt based on a lateral thickness of a thrombus formed in an aortic aneurysm determined by imaging of the aortic aneurysm. The shunt may be advanced in a delivery configuration through a venous puncture site of a vein to access an arterial puncture site of the artery, and then deployed, thereby enabling blood flow through the central portion of the shunt from the artery to the vein.

The invention discloses a multi-section venipuncture tourniquet device, and relates to the technical field of medical instruments. Comprising two telescopic frames which are symmetrically arranged, a holding rod, a first supporting plate and a second supporting plate are sequentially and fixedly installed between the two telescopic frames, a tourniquet is arranged above the holding rod, a plurality of automatic telescopic rods are installed at the bottom of the tourniquet in a dense array mode, tourniquet balls are arranged at the bottoms of the automatic telescopic rods, and pressure sensors, temperature sensors and heating wires are arranged in the tourniquet balls; a camera is arranged at the bottom of the tourniquet, a touch screen is arranged at the top of the tourniquet, and a controller is arranged in the tourniquet and electrically connected with the touch screen and the automatic telescopic rod. The touch screen presents the distribution condition of veins on the back of the hand of a patient, a finger selects one vein on the touch screen and draws a corresponding track, the tourniquet stretches out the automatic telescopic rod according to the track, the tourniquet ball is pressed on the corresponding vein, rolling pressing is conducted on the vein in a targeted mode, meanwhile, the hot compress function is matched, blood vessel dilatation is effectively promoted, and the blood vessel dilatation rate is increased. And the veins are fully filled and exposed.

The invention provides a puncture method and system based on ultrasonic guidance, and relates to a data processing technology, and the method comprises the steps: constructing a part model corresponding to a puncture part, determining a partition scanning line of the part model, controlling ultrasonic equipment to carry out the segmented scanning of the puncture part based on the partition scanning line, and obtaining a segmented scanning graph; the method comprises the following steps: acquiring segmented scanning graphs, determining the segmented scanning graphs meeting puncture conditions as sub-adaptive graphs, splicing adjacent sub-adaptive graphs to obtain a spliced puncture graph, judging the blood vessel form of veins in the spliced puncture graph to obtain candidate puncture graphs, and selecting the candidate puncture graphs to obtain a puncture guide graph. The puncture point location of the puncture vein in the puncture guide map is determined based on the proximal direction, and accurate positioning during vein puncture can be achieved under ultrasonic guidance.

To provide a blood purification device that can accurately determine whether a venipuncture has been performed correctly in a patient. [Solution] The blood purification device 1 comprises a blood purifier 3 capable of purifying blood, a blood circuit 2 having an arterial blood circuit 21 with an arterial puncture needle 211 attached to its tip and a venous blood circuit 22 with a venous puncture needle 221 attached to its tip, an impedance measuring unit 5 having an oscillator 53 that applies an AC voltage between an arterial electrode 51 provided on the arterial blood circuit 21 and a venous electrode 52 provided on the venous blood circuit 22, and capable of measuring the frequency characteristics of the impedance between the arterial electrode 51 and the venous electrode 52, and a puncture determination unit 72 that determines whether the patient has been properly punctured based on the measured impedance frequency characteristics, and further comprises a frequency range determination unit 70 that determines the frequency range of the AC voltage applied by the oscillator 53 according to the liquid in the blood circuit 2.

A portable vein viewer apparatus may be battery powered and hand-held to reveal patient vasculature information to aid in venipuncture processes. The apparatus comprises a first laser diode emitting infrared light, and a second laser diode emitting only visible wavelengths, wherein vasculature absorbs a portion of the infrared light causing reflection of a contrasted infrared image. A pair of silicon PIN photodiodes, responsive to the contrasted infrared image, causes transmission of a corresponding signal. The signal is processed through circuitry to amplify, sum, and filter the outputted signals, and with the use of an image processing algorithm, the contrasted image is projected onto the patient's skin surface using the second laser diode. Revealed information may comprise vein location, depth, diameter, and degree of certainty of vein locations. Projection of vein images may be a positive or a negative image. Venipuncture needles may be coated to provide visibility in projected images.

The application provides an ultrasound-guided puncture method and system, relates to a data processing technology, and achieves accurate positioning during venous puncture under ultrasound guidance by constructing a part model corresponding to a puncture part, determining a partition scanning line of the part model, controlling an ultrasound device to perform segmented scanning on the puncture part based on the partition scanning line, obtaining a segmented scanning image, determining a segmented scanning image meeting a puncture condition as a sub-adaptive image, performing splicing processing on adjacent sub-adaptive images to obtain a spliced puncture image, performing venous shape judgment on the spliced puncture image to obtain a candidate puncture image, performing optimal selection on the candidate puncture image to obtain a puncture guide image, and determining a puncture point of a punctured vein in the puncture guide image based on a centripetal direction.

The utility model discloses a blood taking needle pressure regulating device, which relates to the field of blood taking needle negative pressure regulation and comprises a vein puncture needle, the output end of the vein puncture needle is fixedly connected with a connecting tube, butterfly wings protruding outwards are formed on the two sides of the outer wall of the connecting tube, the output end of the connecting tube is connected with a hose, and the hose is connected with a valve. The output end of the hose is connected with a butt joint in butt joint with a blood collection tube, a micropore is formed in the output end of the butt joint, a protruding tube protruding outwards is integrally formed on the periphery of the butt joint, an inner cavity of the protruding tube is communicated with an inner cavity of the butt joint, and the outer wall of the output end of the protruding tube is in threaded connection with a connector. And a one-way mechanism is arranged in the connector. Through the arrangement of the connector, the rubber sheet, the needle head and the one-way mechanism, the negative pressure effect of the blood taking needle can be improved, blood can flow more smoothly, external air cannot enter the blood taking needle, and the cleanliness of the blood taking needle is kept.

A portable vein viewer apparatus may be battery powered and hand-held to reveal patient vasculature information to aid in venipuncture processes. The apparatus comprises a first laser diode emitting infrared light, and a second laser diode emitting only visible wavelengths, wherein vasculature absorbs a portion of the infrared light causing reflection of a contrasted infrared image. A pair of silicon PIN photodiodes, responsive to the contrasted infrared image, causes transmission of a corresponding signal. The signal is processed through circuitry to amplify, sum, and filter the outputted signals, and with the use of an image processing algorithm, the contrasted image is projected onto the patient's skin surface using the second laser diode. Revealed information may comprise vein location, depth, diameter, and degree of certainty of vein locations. Projection of vein images may be a positive or a negative image. Venipuncture needles may be coated to provide visibility in projected images.

This invention discloses a pediatric intravenous puncture image analysis system and its analysis method. A puncture trajectory acquisition module is placed on the corresponding skin of the puncture subject, and the puncture object is inserted into the tissue of the puncture subject. An image of the puncture subject with the puncture object inserted into its interior is then acquired. An image calculation module calculates the spatial value between the puncture object and the inner wall of the puncture subject based on the image, obtaining the distance between the puncture object and the tissue. A calculation processing module compares the spatial value of the puncture object inside the puncture subject with a preset value. If the spatial value is less than the preset value, a stimulation signal is issued; if the spatial value is greater than the preset value, the puncture proceeds normally. After receiving the stimulation signal, the warning notification module amplifies the signal in a signal amplifier and amplifies it through a display unit, improving the accuracy of puncture during the operation and preventing perforation of the blood vessel wall.

The application discloses a kind of puncture equipment for assisting venipuncture, including controller, puncture table, appearance mechanism and auxiliary mechanism, one side of puncture table forms puncture area, and puncture area is used to place human hand;Appearance mechanism and auxiliary mechanism are respectively arranged in the side of puncture table forming puncture area, controller is electrically connected with appearance mechanism and auxiliary mechanism respectively, and controller is used to control appearance mechanism, to make the vein blood vessel of human hand in puncture area appear;Auxiliary mechanism is used to obtain the image of hand vein blood vessel appearance and send to controller;Controller is used to mark vein path and puncture point to hand image respectively.The technical scheme in the application proposes that the vein blood vessel of human hand is assisted to appear by appearance mechanism, and the vein path and puncture point after appearance are marked in cooperation with auxiliary mechanism, so that medical staff can be quickly assisted to carry out venipuncture, reduce the dependence of medical staff on personal experience, and improve medical efficiency.

The invention discloses a child venipuncture image analysis system and an analysis method thereof, a puncture track acquisition module is placed on the corresponding skin of a puncture object, the puncture object extends into the tissue of the puncture object, and then an image of the puncture object extending into the puncture object by the puncture object is acquired. The space value of the puncture object and the inner wall of the puncture object is calculated through the image calculation module according to the image, the distance between the puncture object and the tissue of the puncture object is obtained, the space value of the puncture object in the puncture object is compared with a preset value through the calculation processing module, and if the space value is smaller than the preset value, a stimulation signal is sent out. If the space value is greater than the preset value, the puncture work is normally carried out, after the pre-warning notification module receives the stimulation signal, the stimulation signal is amplified in the signal amplifier, and the stimulation signal is externally played through the display unit, so that the puncture accuracy of a doctor in the operation process is improved, and the phenomenon that the blood vessel wall is punctured in the operation process is avoided.

The invention discloses a method and system for assisting venipuncture and related equipment, and relates to the technical field of nursing. The method comprises the following steps: acquiring a subcutaneous vein image of a to-be-identified area; selecting a target vein from all veins in the subcutaneous vein image based on a preset puncture rule, and obtaining size data and feature data of the target vein; determining the model of a puncture tool based on the size data, wherein the puncture tool is used for puncturing the to-be-identified area; determining a puncture path for the target vein based on the feature data and a preset prediction model, wherein the puncture path comprises a puncture point and a needle insertion path; and displaying the target vein, the puncture path and the model of the puncture tool.

The present invention discloses a venous puncture auxiliary device for patients with edema, which belongs to the field of medical devices and includes: a pushing member, including a pushing arm and a driving arm, the pushing arm is connected to the driving arm, the pushing arm is provided with a matching channel, the pushing arm is arranged in the matching channel of another pushing arm and can move to an initial position, a plurality of pushing arms are connected into a ring and form a surrounding structure, and the surrounding area of ​​the surrounding structure is zero when the pushing arm is in the initial position; a positioning frame is provided with a placement cavity, the pushing arm is arranged inside the placement cavity; a plurality of driving channels are provided in a ring array on the positioning frame, and the driving arms are arranged in the driving channels when they move; when the driving arms depart from each other along the driving channels, the pushing arms are driven to leave the initial position, and when the pushing arms leave the initial position, the surrounding area of ​​the surrounding structure is greater than zero. Through the above-mentioned arrangement, the present invention can push away subcutaneous edema that spreads outward from a selected puncture position on the patient's body surface.

The venipuncture execution device comprises a first linear driving mechanism, a first rotary driver, a swing arm, a second rotary driver, a second linear driving mechanism and a third rotary driver, the output end of the first linear driving mechanism is connected with the first rotary driver, the output end of the first rotary driver is connected with one end of the swing arm, and the output end of the second rotary driver is connected with the other end of the swing arm. The other end of the swing arm is fixedly connected with the second rotary driver, the output end of the second rotary driver is connected with the second linear driving mechanism, and the output end of the third rotary driver is connected with the first linear driving mechanism. The device has multiple degrees of freedom, provides selection of various puncture angles, distances and postures, is convenient to operate, and can meet individual requirements of different patients. The invention further provides a method for adjusting the puncture angle and position, when the puncture posture is adjusted, the position of the needle point of the puncture needle is kept unchanged, the puncture stability and the puncture precision are improved, and the puncture requirements of special blood vessels in different angles and different directions are met.

Embodiments described herein relate to a shunt for treating an aortic aneurysm and a robotic insertion system for implanting the shunt. In some embodiments, the shunt may include a central portion, an arterial sealing structure, and a venous sealing. In some embodiments, the venous sealing structure may have a lateral length in its deployed configuration, and the arterial sealing structure having a lateral length in its deployed configuration that is greater than the lateral length of the venous sealing structure. The shunt may be advanced robotically in a delivery configuration through a venous puncture site of a vein to access an arterial puncture site of the artery, and then deployed, thereby enabling blood flow through the shunt from the artery to the vein.

The invention discloses an intelligent interactive painless automatic vein puncture method for children and a related device. The method comprises the following steps: uploading an animation video to a puncture robot control system; guiding the child to place the arm in a trigger button area of the video animation playing device, and sensing the placement of the arm of the child through a trigger button; the puncture robot control system carries out preliminary arm position identification according to the initial frame of the animation video; acquiring an image of a child puncture area in real time to identify vein position information of a child; feeding back the vein position information to a puncture robot control system so as to synchronously adjust the video playing progress according to a preset animation key frame sequence; the movement track of the mechanical arm is adjusted in real time according to slight movement of the arm of the child; and after venous indwelling needle puncture is completed, the puncture robot control system controls the mechanical arm to stop acting. In the puncture process, the attention of the child is guided and distracted through the animation video, and the venipuncture experience of the child is remarkably improved.

According to the venipuncture device, through cooperation of related structures in a restraint mechanism and a condensation mechanism, by means of acting force generated by shaking of the head of a patient, the pressure intensity of an annular sealing cavity and an inner cavity of a connecting block can be changed, and when the pressure intensity is positive pressure, the effect of expanding the outline of a Y-shaped stretching belt and the outline of an inner ring of a base plate is achieved; when the air pressure is normal pressure, the effect of reducing the size of the outline of the inner ring of the Y-shaped stretching belt and the chassis can be achieved, so that the Y-shaped stretching belt and the chassis can be more tightly attached to the head of the patient in the process of reducing the inner ring, and the patient can feel more comfortable when the patient wears the Y-shaped stretching belt and the chassis. The stability of the base plate when the head of a patient shakes violently is improved, obvious angle change of the puncture needle is avoided, the stability of the puncture needle after puncture is improved, and the safety effect of the puncture device is enhanced.

A phlebotomy aid provides a capability to expand circulatory members for emphasizing venous appearance and accessibility on an epidermal surface. A warming sheath or sleeve extends over a patient forearm for introducing a thermal source adjacent to a patient blood vessel for emphasizing the vein appearance on the epidermal surface. A beating element in the sleeve is powered and controlled by a low voltage circuit for controlled thermal introduction for mitigating discomfort from overheating and eliminating proximity of potentially harmful electrical exposure.

The present disclosure provides methods, systems, devices, kits, and reagents for performing single cell sequencing (e.g., single cell RNA sequencing) from a low volume, capillary blood (or any low volume blood sample which is not obtained from a vein or by venipuncture).

The utility model discloses a central vein puncture double trocar, which relates to the technical field of medical appliances, and comprises a first needle tube, the end part of the first needle tube is provided with a first needle tube head, and the outer side of the first needle tube head is connected with a first mounting head; according to the central vein puncture double-trocar needle, in the vein puncture process, the skin of a patient is punctured through the first needle head, when venous blood is drawn out, the first needle tube is pushed, the end of the first needle head and the end of the second installation head are driven to be positioned through the positioning ring, the second needle tube is drawn back, and the venous blood is extracted out. The sealing piston ring is driven to pump blood into the first needle tube, whether the pumped blood is venous blood or not is judged, if yes, the first needle tube, the second needle tube, the second mounting head and the piston rod are pulled out together, then the guide wire is inserted into the vein blood vessel from the first mounting head along the first needle head, and in the process, the vein blood vessel can be accurately found, so that the vein blood vessel can be accurately extracted. Practicality is high, and repeated puncture injury of a patient is avoided.

The invention relates to the technical field of medical auxiliary instruments, and discloses a venipuncture fixing guider with a locking function, which comprises a fixing assembly, the fixing assembly comprises a bearing plate, the top of the bearing plate is provided with an arm ring assembly, and one end of the top of the bearing plate is provided with a holding assembly. The two ends of the holding assembly are fixedly communicated with the pressing assemblies, the arm ring assembly fixes the arms of a patient, the holding assembly and the pressing assemblies cooperate together to further fix the hand back of the patient and press the epidermis of the hand back to display vein blood vessels, the translation assembly and the angle adjusting assembly are matched, and a blood vessel inserting needle is locked under the assistance of the pressing assemblies. The angle adjusting assembly comprises a fixed static plate, a hinge is installed at one end of the fixed static plate, a needle inserting movable plate is installed at the top end of the hinge, the rotating angle of the hinge is 15-30 degrees, the needle inserting movable plate enables the needle inserting angle to be stably kept at 15-30 degrees under the action of the hinge, and the phenomenon of early-stage puncture errors of infusion exosmosis is avoided.

Disclosed herein are two-piece rapid insertable central catheters (RICCs), introducers therefor, and methods thereof. For example, an introducer and a distal catheter component of a RICC can be combined in an introducer assembly configured to be actuated with a single finger of the same hand while the introducer is held between the thumb and another finger or fingers of the hand. A catheter advancement hub of the introducer includes a manifold coupled to a proximal portion of a distal catheter hub component of the distal catheter component. A guide needle of a syringe of the introducer has a needle shaft extending through the manifold and a distal end of the distal catheter component. An introducer housing is positioned over a syringe tip, the manifold, and the proximal portion of the distal catheter component. The introducer housing of the introducer is configured to provide column strength to a catheter tube of the distal catheter component during venipuncture.

Systems and methods are disclosed that include providing a blood collection tube with a unitarily molded barrel having a cylindrical body portion that defines a barrel cavity, a slot extending longitudinally along the cylindrical body portion, and opposing rails that extend longitudinally along edges of the cylindrical body portion formed by the slot. A dual-ended needle is retained within the barrel. A needle safety device having a pair of channels that receive the rails of the barrel is slidably engaged with the barrel between a first retracted position that exposes a venipuncture end of the needle for selective use of the blood collection tube holder and a second extended position that positions a needle tip shield of the needle safety device at least partially around the venipuncture end of the needle to protect a user from accidental needle sticks after use of the blood collection tube holder.

A syringe with an integrated vein detector is disclosed that illuminates a patient's potential venipuncture site and identifies veins suitable for venipuncture with the syringe for blood collection or intravenous administration. A syringe portion of the system includes a syringe barrel and a needle with a sharp tip for venipuncture extending from a distal end of the barrel. The lighting module is connected to the syringe barrel; the invention relates to a syringe having an illumination source that projects an electromagnetic beam into an illumination region distal to a sharp tip of the syringe for illuminating and identifying subcutaneous veins. The integrated vein detector and syringe system can be operated by a single clinician, such as a hemostix, which can easily operate the syringe and illuminate the venipuncture site with one hand without the assistance of other clinicians.

The present disclosure solves many problems. The main problem solved by the present disclosure is the problem of showing veins for patients whose veins may be hard to find. The present disclosure will greatly improve the venipuncture experiences for millions of people every day. The present invention discloses a system and method imaging objects in or behind a turbid medium comprising a light source adapted to illuminate an imaged area, an imaging device arranged to optically capture and relay an image, an electronic display to receive and display the image, and a control unit to control at least one spectral and polarization properties of the light source. Also disclosed is a camera module within an embodiment of the imaging device that provides for an alternative operation of the imaging device, without a control unit, and relaying of the image to the electronic display, which may be a tablet.

In one aspect, a method and system for detecting a change in fluid dynamics of a fluid flowing through an extra-corporeal circuit is disclosed, which includes establishing an acoustic wave resonance across a transverse dimension of at least a portion of a line associated with the extra-corporeal circuit through which the fluid flows, monitoring a phase signal of the resonant acoustic wave, and identifying occurrence of a change in fluid dynamics of the flowing fluid when the observed phase signal of the resonant acoustic wave indicates a deviation from the expected fluid flow signature. The change in fluid dynamics can be used to indicate a venous needle dislodgement event.