18 results about "Vein puncture" patented technology

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.

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 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.

The invention provides a hemostasis device for femoral artery and vein puncture points after infantile congenital heart disease interventional operation, and belongs to the technical field of medical instruments. The hemostasis device for the femoral artery and vein puncture point after the infantile congenital heart disease interventional operation comprises a pair of bandages, the ends, close to each other, of the bandages are jointly provided with a positioning assembly, and the positioning assembly is used for being matched with the bandages to precisely position the hemostasis point; and the compression assembly is arranged in a transparent positioning cover included in the positioning assembly. According to the scheme, the transparent positioning cover is made of the transparent material, so that medical staff can directly observe the real-time condition of a puncture point through the cover body, whether errhysis exists or not can be judged without dismounting the device, and the infection risk is reduced; the cross-shaped positioning lines arranged on the positioning device provide visual reference for puncture point positioning, medical staff can quickly align the cross-shaped intersection point to a puncture hemostasis point, the positioning efficiency and accuracy are greatly improved, and hemostasis failure caused by compression position deviation is avoided.

The invention discloses a navigation system, a storage medium and a method for portal vein and branch vein puncture, and belongs to the technical field of medical instruments. The system comprises a modeling module used for constructing a three-dimensional blood vessel model containing a target belonging branch; the image fusion and navigation display module is used for performing registration fusion on the model and the intraoperative real-time image to generate an augmented reality navigation interface; the surgical instrument tracking and positioning module is used for acquiring and displaying the spatial pose of the instrument in real time; and the intelligent distinguishing module is used for analyzing the physical sensing signal of the instrument and automatically generating a distinguishing signal of entering a blood vessel cavity. The technical problems that an existing navigation system cannot clearly recognize deep branch blood vessels, is not intuitive in guidance and lacks objective successful criteria are solved, accurate, intuitive and intelligent surgical navigation of portal vein specific branches is achieved, and the system is particularly suitable for clinical scenes needing high-quality portal vein blood samples, such as free nucleic acid detection.

The invention relates to the technical field of intravenous injection, in particular to a mechanical arm trolley for hand back vein automatic injection, which comprises a table body, a six-axis robot is arranged on one side of the table body, and the six-axis robot is used for performing vein automatic injection work on the hand back of a patient; a positioning assembly is arranged on the surface of the table body, and the positioning assembly is used for placing and positioning the hand back of a patient; an infusion assembly is placed on the surface of the table body and used for being matched with the six-axis robot to achieve intravenous injection work. A universal six-axis robot is adopted as an execution mechanism, a leading-edge AI automatic needle entry point recognition algorithm and program are introduced in injection point positioning, a common visual camera is matched to collect a hand back image to recognize and determine an optimal needle entry point in real time, and the optimal needle entry point is converted into a pose under a robot coordinate system for autonomous puncture. The problem of medical resource strength shortage is effectively relieved, and the venipuncture success rate and the working efficiency are remarkably improved.

The tourniquet comprises an air cushion, a first sleeve belt and a mounting plate, the first sleeve belt is fixedly arranged on the left side of the bottom of the air cushion, the mounting plate is fixedly arranged at the middle end of the top of the air cushion, and an exhaust assembly is arranged on the outer wall of the mounting plate. Through the design of the heating function, hot compress treatment can be conducted on the area of a femoral artery puncture point of the lower limb of a child patient, so that blood circulation of the lower limb of the child patient is promoted, the numbness phenomenon of the lower limb of the child patient is relieved, and therefore the contradiction emotion of the child patient during treatment is relieved in an auxiliary mode through the device. Through the design of a limiting function, the lower limbs of a child patient can be braked, dislocation of the hemostasis device and a puncture point caused by repeated bending of the lower limbs of the child patient is prevented, the hemostasis effect of the device is ensured, and in addition, through the design of a massage function, the blood circulation effect of the lower limbs of the child patient is further improved.

The utility model relates to the technical field of medical instruments, in particular to a vein puncture point hemostasis device. The hemostasis patch comprises a fixing patch set and a hemostasis assembly. The fixing paste set comprises a first fixing paste and a second fixing paste which is arranged on the rear side of the first fixing paste and connected through an easy-to-tear line. The hemostasis assembly comprises a positioning sub-assembly and a compression sub-assembly; the positioning sub-assembly comprises a needle handle limiting block embedded in the middle of the first fixing patch and an arc-shaped supporting piece vertically and fixedly arranged behind the needle handle limiting block. The compression sub-assembly comprises a pair of limiting belt rings which are fixedly arranged on the lower surface of the second fixing patch in a bilateral symmetry mode and located on the two sides of the arc-shaped supporting piece, an arc-shaped compression elastic piece movably arranged between the two limiting belt rings in a penetrating mode and a hemostasis piece arranged below the middle of the lower surface of the arc-shaped compression elastic piece in an abutting mode. The device can press a wound in time when a needle is drawn out of a puncture opening, and meanwhile, the problem of subcutaneous extravasated blood caused by displacement between a compression plate and a puncture point due to shaking of the device is avoided as far as possible.

The invention belongs to the technical field of medical apparatuses and instruments, and particularly relates to a needle inserting auxiliary device suitable for arteriovenous puncture. The acupuncture needle device suitable for arteriovenous puncture comprises a puncture needle, a mounting tube body and a pop-up assembly, the puncture needle comprises a needle body, a sleeve, a fixed needle wing and a connecting tube; the mounting pipe body comprises a containing cylinder, a positioning part and a rear cover body; the pop-up assembly comprises a movable push rod, a limiting sleeve and an elastic limiting piece, and the puncture needle is detachably arranged at the end of the movable push rod. When the puncture needle is used, a medical worker obtains the puncture depth between the puncture needle and the central position of the relative vein or artery according to the color ultrasound conditions of the vein or artery of the puncture part of different patients, and then adjusts the position of the limiting sleeve on the movable push rod, so that the popping distance of the movable push rod can exactly pierce the relative vein or artery; the puncture needle can be quickly and accurately inserted into the relative vein or artery, pain response of a patient can be reduced, and the puncture success rate of medical staff is increased.

1. The name of the design product: vein instrument. 2. The use of the design product: auxiliary equipment for venipuncture. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The invention relates to the technical field of medical instruments, and discloses a disposable arteriovenous puncture outfit which comprises a hose with one end provided with a puncture needle and further comprises a damping type flow control mechanism. The hollow drainage shell is communicated with the other end of the hose, and the interior of the hollow drainage shell is of a hollow structure; the movable valve plate is placed in the hollow drainage shell and can play a role in one-way flow guiding; the spiral spring is placed in the hollow drainage shell and can play an elastic damping effect on the movable valve plate; and the sealing ring can prevent blood leakage. According to the disposable arteriovenous puncture outfit, when a blood transfusion tube falls off, flowing blood can be blocked in time, so that the blood outflow phenomenon is prevented, in addition, the blood flowing state can be effectively controlled, and the stability and the safety degree of equipment in the puncture drainage process are improved.

This invention discloses a video-guided mouse tail vein puncture device, belonging to the field of injection device technology. The key technical features include: a device and a support plate, detachably connected; a rotating block is installed within the device, sliding along its length to secure mice of different sizes; a fixing block is mounted on the support plate, with an adjustable catheter mounted on it; cameras are fixedly mounted on the two inclined sections of a folded plate fitted onto the catheter; a fixing mechanism for securing the mouse tail is installed within a fixing groove to assist the experimenter in performing mouse tail vein puncture; furthermore, an infrared emitter is ring-shaped mounted on the folded plate. This injection device not only secures the mouse and its tail but also assists the experimenter in quickly and accurately locating the mouse tail vein, reducing the number of punctures and improving experimental efficiency.

The utility model discloses an arteriovenous puncture outfit, and relates to the technical field of arteriovenous puncture. The device comprises a conveying pipe, one end of the conveying pipe is provided with a needle head, the needle head is provided with a needle wing piece, the conveying pipe is movably sleeved with a protective sleeve, the surface of the protective sleeve is symmetrically provided with a guide groove and an expansion groove, one end of the expansion groove is communicated with the guide groove, and the surface of the protective sleeve is symmetrically provided with elastic clamping plates. And the elastic clamping plates are correspondingly arranged at the lower parts of the expansion grooves, so that elastic cavities are formed between the elastic clamping plates and the expansion grooves. The puncture risk caused by misoperation when a needle sleeve is sleeved again is greatly reduced, meanwhile, the possibility of cross infection caused by pathogens carried by the puncture needle is reduced, the problem that the used puncture needle is difficult to store is well solved, other personnel are prevented from being punctured, and the safety of medical personnel and surrounding personnel is comprehensively guaranteed.

The utility model discloses an anti-disengaging arteriovenous puncture needle, and relates to the technical field of puncture needles. The puncture needle comprises a puncture needle tube, a needle head is fixedly matched with one end of the puncture needle tube, and a fixing gasket is fixedly matched with the outer side wall of the puncture needle tube. The anti-falling chamfer is rotationally matched with the interior of the fixing gasket, a first annular plate is in threaded fit with the outer side wall of the anti-falling chamfer, and a second annular plate is rotationally matched with one side of the first annular plate. Through the arrangement of the second annular plate, the first annular plate drives the second annular plate to slide towards the fixed gasket under the action of a worker, and the anti-falling chamfer is positioned in the fixed gasket through one side of the second annular plate; the problem that in the prior art, after the orientation angle is adjusted, the anti-disengaging chamfer falls off from the interior of the fixing gasket is solved, and the using process of the puncture needle tube is more convenient and faster.

The utility model discloses an infusion set needle, including steel needle, needle holder handle, needle seat and hose, steel needle base part is connected with needle seat and is connected with hose through needle seat, needle holder handle is sleeved on needle seat, needle holder handle can adjust direction on needle seat and limit on needle seat to realize left hand vein puncture operation and right hand vein puncture operation respectively. According to the vein puncture needle, the problem that in the prior art, a needle holding handle is deviated to the right side, so that left-hand-free medical workers are inconvenient to operate is solved, the flexibility and efficiency of overall use are improved, and it is guaranteed that the medical workers with different operation habits can efficiently and safely conduct vein puncture operation.

A kind of venipuncture needle clamp device and end effector, the venipuncture needle clamp device includes: base, the base is equipped with through-hole and limiting slot;Clamp adapter, installed on the base;Pressure sensor, installed on the clamp adapter;Motor, installed on the side of the base, and the transmission mechanism of the motor passes through the through-hole;Fixed swing arm, fixed on the transmission mechanism of the motor, rotatably arranged on the other side of the base.By fixed swing arm and limiting slot cooperation, realize the fixation and release of puncture needle, device structure is simple and reliable, good flexibility.

The utility model provides a deep venipuncture catheterization auxiliary device and a deep venipuncture catheterization system. The deep venipuncture catheterization auxiliary device comprises a base, a clamping device and a locking mechanism. The clamping device is rotationally connected with the base and used for clamping or releasing the ultrasonic probe. The locking mechanism is arranged between the base and the clamping device and used for limiting relative rotation between the clamping device and the base during locking. When deep vein puncture catheterization is carried out, a medical worker finds a puncture point through the ultrasonic probe. And then, after the ultrasonic probe is fixed on the clamping device, the base is supported on the human body, and the ultrasonic probe is aligned with the puncture point. At the moment, a medical worker can hold the base with one hand or fix the base on the human body through a sterile medical film and the like, and puncture operation can be conducted with the other hand or two hands. The base increases the contact area with the human body, so that the ultrasonic probe is more stable, and displacement is effectively prevented. And when the base is fixed by using the sterile medical adhesive film, both hands can be liberated, and the puncture effect is further improved.

The application discloses an ultrasonic vein image recognition blood vessel reconstruction enabled venipuncture device and method, belongs to the technical field of ultrasonic vein puncture, and comprises a placing base, an ultrasonic vein image recognition device, an angle adjusting device, a front-back adjusting and moving device for moving the angle adjusting device forward and backward, an up-down moving adjusting device for moving the front-back adjusting and moving device upward and downward, a left-right moving adjusting device for moving the up-down moving adjusting device leftward and rightward, a positioner for accurately positioning puncture for medical staff, and an auxiliary protection positioning device for protecting the ultrasonic vein image recognition device, wherein the medical staff can directly perform puncture operation in combination with the astigmatism center mark and the blood vessel depth parameter displayed on the display screen, subjective experience judgment is not needed, the operation difficulty is effectively reduced, and accurate puncture can be realized for patients with different body surface conditions.