106 results about "Vein puncture" patented technology

The invention discloses a peripheral vein puncture blood vessel pressure monitoring system for image enhancement examination based on multi-modal fusion, and relates to the technical field of medical image assistion.The peripheral vein puncture blood vessel pressure monitoring system comprises the steps that image data, sensor data and personalized data of a patient are collected; generating an image feature vector, a sensor feature vector and a personalized feature vector based on the preprocessed multi-modal data, carrying out feature interaction on a multi-modal feature line, carrying out representation fusion by combining Transform with contrast learning, and generating a fusion representation vector; the maximum tolerance pressure, the extravasation risk level and the recommended injection flow rate range of the target puncture point under the current injection flow rate are predicted and evaluated in the blood vessel pressure resistance prediction model, injection suggestions and injection alarms of the target puncture point are generated, and injection parameters are automatically adjusted. According to the method, the personalized safety pressure threshold values of patients with different blood vessel conditions are accurately evaluated, and the safety and accuracy of peripheral vein puncture are remarkably improved.

The invention relates to a venipuncture target recommendation method based on image processing and an artificial intelligence algorithm. The venipuncture target recommendation method comprises the following steps: S1, performing image enhancement processing on an input infrared image; s2, executing a hand image blood vessel segmentation task; s3, judging whether a blood vessel region exists in the hand graph or not; s4, segmenting the center line of the blood vessel, and dividing the blood vessel into a plurality of independent sections according to the bending characteristics of the blood vessel; and S5, summarizing a target spot rule suitable for puncture by utilizing the database model, and determining key characteristics of the puncture target spot according to the target spot rule. According to a blood vessel puncture rule, a linear regression model is established, the weight of each feature of a puncture target is calculated, the score of each potential puncture target is obtained in a weighted summation mode, and the puncture target with the highest score is selected for recommendation. The target spot and the puncture direction which accord with the puncture habit of a nurse can be more accurately selected. And the accuracy of puncture operation is improved, so that the success rate and the safety of puncture are remarkably improved in practical application.

The invention discloses equipment for establishing a mouse hemorrhagic shock resuscitation model. The equipment comprises a surgery operation table, a body temperature maintaining device, a puncture module, an in-vitro blood heat preservation device, an artery puncture device, a blood transfusion / bloodletting device, a blood temporary storage device, an arterial blood pressure monitoring device and a three-way device. According to the invention, venipuncture catheterization is not needed in the blood transfusion / letting process, the purposes of blood transfusion / letting and real-time arterial blood pressure monitoring can be achieved only through arterial puncture catheterization, and the retention of veins can not only reduce the difficulty of the operation, but also ensure the backflow of tissue blood after the operation, so that the injury caused by the operation is reduced. According to the in-vitro blood heat preservation device, the in-vitro blood can be kept at a constant temperature, and the death risk of mice caused by body temperature changes can be effectively reduced. According to the blood transfusion / bloodletting device, the blood transfusion / bloodletting speed can be manually controlled, the problem that the blood transfusion / bloodletting speed cannot be controlled by manual bloodletting can be effectively solved, and heart failure caused by rapid and massive blood transfusion is avoided.

The utility model provides a platelet-rich plasma preparation device with a double-layer structure. The platelet-rich plasma preparation device comprises a centrifugal sleeve and a blood collection tube, the head end of the blood collecting tube is connected with a vein puncture needle assembly, and a protruding structure protruding out of the surface of the blood collecting tube is arranged on the outer wall of the blood collecting tube. Any end of the centrifugal sleeve is open and serves as an inlet of the blood collection tube; a protruding structure guide groove is formed in the centrifugal sleeve in the axial direction of the centrifugal sleeve, the protruding structure is of a sleeve structure, and the end, close to an inlet of the blood collecting pipe, of the sleeve structure is open. A needle head of the vein puncture needle assembly can be inserted into and contained in the protruding structure from the end, close to the inlet of the blood collecting pipe, of the protruding structure. The centrifugal injector is simple in structure, the stability of the injector during centrifugation can be improved, and the centrifugal effect can be improved; and meanwhile, the needle head is properly stored in the needle head storage bin during centrifugation, so that the risk of bacterial contamination is reduced.

The utility model relates to the technical field of anesthesia, in particular to a puncture needle which comprises a puncture needle body. The supporting structure is installed on the puncture needle body, and the puncture depth of the puncture needle body is controlled through the supporting structure; the connecting structure is installed on the puncture needle body, and the puncture needle body is connected to the corresponding position through the connecting structure; according to the puncture needle, epidermis and vein puncture of a patient is conducted through the puncture needle body, before puncture is conducted, the threaded ring rotates on the threaded cylinder to drive the connecting rods and the supporting ring to move, so that the positions of the supporting ring and the soft cushion are adjusted, and when anesthetic needle puncture is conducted, the soft cushion makes contact with the body surface of the patient, so that a device is supported; meanwhile, the puncture depth of the puncture needle body is adjusted and controlled, and the device is connected with an injector through a conical barrel and a sleeving barrel, so that anesthesia injection is completed; according to the device, the puncture depth of the puncture needle can be conveniently adjusted, and damage to a patient caused by too large puncture depth is avoided.

The utility model discloses an arteriovenous puncture outfit manufacturing device which comprises a puncture needle tube feeding mechanism, a catheter feeding mechanism and an assembling mechanism, and the puncture needle tube feeding mechanism and the catheter feeding mechanism respectively drive puncture needle tubes and catheters to move to be close to the assembling mechanism to be positioned. And the assembling mechanism is used for connecting the puncture needle tube with the catheter in a butt joint manner. The needle tubes are sequentially placed in the containing grooves and rotate along with the rotary disc to be close to the assembling mechanism to be positioned, and the guide tubes are sequentially placed on the tube supporting frame and rotate along with the material belt to be close to the assembling mechanism to be positioned, so that the positioning accuracy of the needle tubes and the guide tubes is higher, and the assembling mechanism can be directly connected and assembled conveniently; all procedures are connected more coherently, and the automation degree is higher.

A vein puncture needle is arranged at one end of a needle seat, a bottle inserting end puncture needle is arranged at the other end of the needle seat, a needle tip of the bottle inserting end puncture needle is bent towards the axis direction of the needle tip, a rubber sleeve is sleeved outside the bottle inserting end puncture needle, and a vein puncture needle cap is sleeved outside the vein puncture needle. And an intubation needle cap is sleeved outside the bottle-inserting end puncture needle and the rubber sleeve. The puncture needle has the advantages that the protective rubber sleeve is independently arranged outside the puncture needle at the bottle inserting end, the protective caps are independently arranged outside the vein puncture needle and the puncture needle at the bottle inserting end, the protective caps are used for protecting the sterilized and disinfected double-end needle tube from being polluted, the needle point of the puncture needle at the bottle inserting end is designed to be of an inwards-bent structure, and the puncture needle is convenient to use. In the puncture process of the bottle inserting end, the needle point of the puncture needle at the bottle inserting end can be prevented from penetrating out of the side face of the rubber sleeve to cause blood leakage.

The utility model relates to the technical field of medical instruments, and discloses a novel vein puncture bloodletting needle with drainage and blood storage functions, which comprises a needle head, the needle head can be designed into a large model, a medium model and a small model, A scale marks are arranged on the surface of the needle head, and a threaded cylinder is fixedly connected to the top of the needle head. The interior of the threaded cylinder is in threaded connection with a drainage assembly. According to the novel blood-letting puncture needle for the bloodletting therapy, through the arrangement of the drainage assembly, when a medical worker conducts blood-letting puncture bloodletting therapy operation, the medical worker punctures a needle point into a vein of a punctured part, blood can enter a drainage tube through a through hole in a needle head through pressure in the vein, and finally the blood enters a drainage bag; blood backflow can be avoided through the anti-backflow structure of the drainage bag, so that the bloodletting needle can collect blood of a patient, the blood is prevented from being sprayed to clothes and skin mucous membranes of an operator, and the exposure risk of medical staff is reduced.

The invention relates to an arteriovenous puncture needle, and belongs to the field of medical instruments. Comprising a three-way pipeline, a puncture steel needle, an indwelling needle, a rotary fixing assembly, a holding assembly, an isolation plug, an extension tube, a heparin cap, a protective sleeve, a hemostatic clip and a connecting base. The puncture steel needle penetrates through the remaining needle, the holding assembly is connected with the puncture steel needle, the rotary fixing assembly is rotatably arranged on the side wall of the three-way pipeline in a sleeving mode and connected with the holding assembly in a clamped mode, and the heparin cap is detachably connected with the connecting base or the three-way pipeline. The puncture steel needle hollow section is of a tubular structure coaxially connected with the puncture steel needle solid section, a puncture steel needle opening is formed in the side wall of the side, connected with the puncture steel needle solid section, of the puncture steel needle hollow section, the puncture steel needle opening is a through hole, and the puncture steel needle opening is formed in the junction of three channels in the three-way pipeline. The blood flow volume can be judged easily, the puncture needle is prevented from shaking to puncture the blood vessel wall, and the blood return condition can be judged timely and rapidly after the puncture steel needle punctures the blood vessel.

The utility model provides a blood sampling and centrifuging integrated platelet-rich plasma preparation device which comprises a centrifugal sleeve and a blood sampling assembly coaxially and detachably installed in the centrifugal sleeve, and the blood sampling assembly comprises a blood collecting tube and a vein puncture needle connected to the head end of the blood collecting tube; the outer wall of the blood collecting tube is provided with a needle head containing bin used for containing a needle head of the vein puncture needle. According to the blood collection and centrifugation integrated platelet-rich plasma preparation device, a container does not need to be replaced in the blood collection and centrifugation process, and contact between the blood and the outside is reduced; and the needle head of the vein puncture needle can be properly stored, so that bacterial contamination is really avoided. Moreover, the needle head is accommodated in the needle head accommodating bin, so that the requirement on the length of the centrifugal sleeve can be reduced, and the blood carrying amount of the centrifugal sleeve with the same size is more.

The application discloses a deep vein puncture path generation method and device, the method comprises the following steps: acquiring an ultrasound image of a puncture site; identifying the category of an anatomical target according to the color feature and shape feature of the ultrasound image, and establishing a corresponding feature vector; wherein each feature vector corresponds to an anatomical target; inputting the ultrasound image after the feature vector is established into a preset path model, so that the path model establishes a vein puncture path according to each feature vector, and performs traversal query to output the shortest vein puncture path; wherein the path model establishes a vein puncture path according to each feature vector according to a preset objective function. The technical scheme of the application identifies the anatomical target category in the ultrasound image and outputs the shortest vein puncture path, provides reliable object recognition and path guidance for medical staff, avoids the risk of misjudgment caused by insufficient skills or experience among medical staff, and can improve the accuracy and safety of vein puncture.

The present invention provides an arteriovenous puncture needle, which relates to the technical field of medical devices, and includes a first fixing member, a puncture needle slidably connected to the first fixing member, a scale provided on the puncture needle, a propeller fixedly connected to the puncture needle, a short rod fixedly connected to the propeller, a hose connected to the side of the puncture needle close to the propeller, a second connecting member fixedly connected to the bottom surface of the first fixing member, and the second connecting member rotatably connected to the first connecting member. The present invention fixes the device to the patient's arm through a stabilizing ring, and then by rotating the first fixing member clockwise, the first fixing member drives the second connecting member to rotate clockwise, the first fixing member drives the puncture needle and then drives the propeller clockwise to rotate. When the propeller drives the puncture needle forward, the needle can be inserted at a suitable insertion angle, avoiding the problem of incorrect insertion angle caused by the unstable hands of new medical staff. At the same time, under the limiting effect of the limiting member on the ratchet, the ratchet will not drive the second connecting member to rotate counterclockwise.

The invention discloses a disposable sclerosis injection device special for hemangioma or cyst, and belongs to the technical field of medical instruments. A first connector of the first three-way pipe is connected with an extension pipe of the puncture needle or connected with the puncture needle through a first extension pipe; the first injector is connected with a second connector of the first three-way pipe through a second extension pipe; a first end of the third extension pipe is connected with a third interface of the first three-way pipe; the second end of the third extension tube is connected with the second injector; or, the second end of the third extension tube is connected with the first connector of the second three-way tube, the second connector of the second three-way tube is connected with the third injector, and the third connector of the second three-way tube is connected with the fourth injector. According to the invention, different vein puncture needles are flexibly assembled into the sclerosis injection device special for hemangioma or cyst and suitable for different application scenes, so that cyst suction, radiography and free sclerosing agent injection can be realized.

A blood purification device (1) comprises: a blood purifier (3) capable of purifying blood; a blood circuit (2) including an arterial-side blood circuit (21) which has an arterial-side puncture needle (211) attached on the distal end thereof, and a venous-side blood circuit (22) which has a venous-side puncture needle (221) attached on the distal end thereof; an impedance measurement unit (5) including an oscillator (53) that applies an alternating-current voltage across an arterial-side electrode (51) provided to the arterial-side blood circuit (21) and a venous-side electrode (52) provided to the venous-side blood circuit (22), the impedance measurement unit being capable of measuring frequency characteristics of the impedance between the arterial-side electrode (51) and the venous-side electrode (52); and a puncture determination unit (72) for determining, on the basis of the measured frequency characteristics of the impedance, whether a patient has been punctured normally. The blood purification device also comprises a frequency range determination unit (70) for determining the frequency range of the alternating-current voltage applied by the oscillator (53) in accordance with the liquid in the blood circuit (2).

The utility model relates to the technical field of child pacifying equipment, and discloses a blood sampler which comprises a hose, one end of the hose is connected with a butt joint end in a clamped mode, the other end of the butt joint end is provided with a blood sampling tube, the top end of the blood sampling tube is fixedly connected with a vein puncture needle head, and the vein puncture needle head is sleeved with a protective sleeve. An output port is formed in the front end of the protective sleeve, a moving mechanism is connected to the side face of the protective sleeve in a sliding mode, and a protective mechanism used for a vein puncture needle is arranged outside the blood collection tube. According to the blood sampler, through the arrangement of the protective sleeve and the plug, a medical worker uses the sampler to sample venous blood of a detected person, after sampling is finished and the medical worker pulls down the needle head from the arm of the detected person, the medical worker turns over with one hand to open the U-shaped cover, holds the needle handle and puts the plug into the box body with the other hand, and then the hose is pulled backwards, so that the medical worker can sample the venous blood of the detected person. And the vein puncture needle head is accommodated in the protective sleeve.

The utility model discloses a fixing device for a salt bag used after internal jugular vein paracentesis. Comprising a box body with an opening in the bottom, a containing bag mechanism fixedly arranged at the bottom of the box body and used for containing a salt bag, a countdown reminding mechanism fixedly arranged on the box body, a first neck fixing belt, a second neck fixing belt and a pressure applying mechanism, wherein the first neck fixing belt and the second neck fixing belt are oppositely and fixedly arranged on the outer side face of the box body; the pressure applying mechanism is arranged on the box body and can apply pressure to the salt bag placed in the containing bag mechanism; wherein the first neck fixing band and the second neck fixing band are matched with each other and can be limited on the neck. The position of the salt bag is fixed by a mechanical structure instead of a mode of holding the salt bag by hands, so that the physical strength of people can be reduced, the operation is simple, and the use is convenient. And the countdown reminding mechanism can give an alarm for reminding after the salt bag compression time reaches the set time, the situation that the salt bag compression time far exceeds the set time can be effectively avoided, and potential safety hazards can be reduced. The salt bag fixing device is suitable for being used for fixing the position of the salt bag after the internal jugular vein puncture operation.

An automatic vein puncture robot comprises an axial movement mechanism, a puncture execution device, an image acquisition device and a control device used for controlling the image acquisition device and the puncture execution device. The puncture execution device is connected to the axial movement mechanism; the puncture execution device comprises a puncture needle clamp device and a posture adjusting device, and a puncture needle is installed at the tail end of the puncture needle clamp device. The posture adjusting device is connected with the puncture needle clamp device through a driving connecting piece, and is used for adjusting the posture of the puncture needle clamp device, so that the puncture needle points to a target puncture target point in a target puncture direction and angle; the image acquisition device comprises a near-infrared camera, a depth camera and an ultrasonic module which are mounted on the puncture execution device; the control device is used for determining a target puncture target spot and a puncture strategy based on an acquisition result of the image acquisition device, and controlling the puncture execution device to execute venipuncture operation according to the puncture strategy.

The invention discloses a neonatal umbilical artery and vein puncture catheterization training model which is characterized by comprising a neonatal model and a puncture needle model. A simulated heart is arranged in the thoracic cavity of the newborn model; the aorta and the inferior vena cava are connected with the simulated heart; the puncture needle model is rod-shaped, and a working part is arranged at the front end of the puncture needle model; the periphery of the vein puncture path and the artery puncture path is sleeved with a plurality of sets of electromagnetic coils in the axial direction; each group of electromagnetic coils is provided with an independent main switch, and the main switches of all the electromagnetic coils are arranged along a puncture path one by one, so that the main switch can be triggered when the working part of the puncture needle model passes through one main switch, and the corresponding electromagnetic coil is electrified to generate an acting force in a correct puncture direction on the working part. According to the invention, force sense direction guidance can be provided during puncture practice.

The invention discloses a venipuncture augmented reality navigation system based on near-infrared imaging, and relates to the technical field of medical diagnosis, and the venipuncture augmented reality navigation system comprises the following steps: collecting a light intensity time sequence signal, and collecting a motion signal representing the physical motion of the venipuncture augmented reality navigation system; emitting a light pulse to the target blood vessel region; and performing frequency domain transformation on the light intensity time sequence signal, and completing display in a target blood vessel region through an augmented reality display module. According to the method, the multi-modal quantitative indexes including physiological, physical and spatial dimensions are constructed and visually presented through augmented reality, the objectivity and success rate of venipuncture decision making are remarkably improved, and hardware cost does not need to be increased.