189 results about "Venous vessel" patented technology

The invention discloses an embolism part for peripheral arteriovenous vessels, the embolism part comprises an anchoring part and a blocking part fixedly connected with the anchoring part, the blocking part adopts polyurethane shape memory foam, the expansion rate of the polyurethane shape memory foam is 50-100 times, and a preparation method of the polyurethane shape memory foam comprises the following steps: step 1, preparing a polyurethane shape memory foam material; the preparation method comprises the following steps: preparing a polyurethane acrylate prepolymer from macromolecular polyol, diisocyanate, a chain extender containing disulfide bonds, other micromolecular chain extenders and an acrylate end-capping reagent; and 2, uniformly mixing the polyurethane acrylate prepolymer, a foaming agent, a foaming promoter and a photoinitiator to obtain a foaming solution, and sequentially carrying out light curing and foaming on the foaming solution to obtain the polyurethane shape memory foam. According to the embolism part, the polyurethane shape memory foam is adopted as the blocking part, the blocking part applies radial acting force to the wall of the blood vessel all the time based on the expansion trend of the blocking part, and the blocking part and the anchoring part jointly act and can be stably maintained in the blood vessel.

An intra-vessel transcatheter filter device (1) designed to capture and remove emboli, thus preventing distal embolization, comprising: • a tubular filter (2) comprising a flexible porous material and defined by a distal element and a proximal element, namely a main body (3) and a funnel (4); i. said main body (3) having a length adapted to extend within a suitable vessel zone; said main body (3) comprising: a) a distal end (5) that is adapted to be radially coupled with said zone and hermetically sealed to it when the device is in an active configuration, said distal end (5) being provided of selectively actionable closure means so that said distal end is designed to be open when the device is in an active configuration and closed before the device retraction, b) a proximal end (6); ii. said funnel (4) forming an extension of said main body (3), with the funnel base located at said proximal end (6). • a support structure assembly (8) comprising: i. a supporting catheter (11) extending within said main body (3), ii. one radially expandable distal structure (9) fixed to said distal end (5), iii. one radially expandable proximal structure (10) positioned in correspondence of said proximal end (6), said distal structure (9) and said proximal structure (10) being fixed at least in an end to said supporting catheter (11).

The invention relates to the technical field of medical image processing and medical aid decision making, in particular to an internal arteriovenous fistula intelligent planning method and system based on haemodynamic simulation, and the method comprises the steps: firstly obtaining three-dimensional space anatomical data of arteriovenous blood vessels of a patient, and constructing a blood vessel tree three-dimensional model; and inputting the blood vessel parameter data and the hemodynamic parameter data at different blood flow rates into a deep learning model to obtain dynamic shear force data of the anastomotic stoma, and comparing the dynamic shear force data of the anastomotic stoma with preset optimal anastomotic angle data to determine an optimal anastomotic angle. And performing internal arteriovenous fistula operation type three-dimensional modeling on the three-dimensional model of the vascular tree by combining the optimal anastomosis angle to obtain a three-dimensional internal arteriovenous fistula model, and performing a virtual operation based on the model to obtain virtual operation process data and a postoperative hemodynamic state evaluation result. The success rate of one-time operation of internal fistula can be increased to 85%-90% from 60%-65% in the prior art.

The invention discloses a blood brain barrier water extraction rate imaging method and system based on artery marking and speed selection. By marking spinning of water molecules in artery blood and selectively detecting signals of residual marked blood which does not enter brain tissues in vein blood vessels, quantitative evaluation of blood-brain barrier water permeability is realized. According to the method, the neck artery blood flow is magnetized and overturned by adopting pseudo-continuous artery spin labeling, a speed selection module based on Fourier transform is applied in an acquisition stage to eliminate interference of brain tissue signals, pure vein labeling signals are obtained, and rapid and accurate measurement of water extraction fraction and permeability-surface area volume is realized. In addition, the signal-to-noise ratio and robustness are effectively improved by adopting dual suppression pulses of background tissues and blood. The method does not need an exogenous contrast agent, is non-invasive, short in scanning time and accurate and stable in measurement result, and has important clinical application value for early diagnosis of brain diseases and assessment of pathological changes of the blood brain barrier.

The invention relates to a computer-implemented method of liver resection surgery planning, comprising the steps of: processing (E2) preoperative computed tomographic images (10) of a patient to generate liver, liver lesion (ss) and venous vessels segmentations; pruning the venous vessels segmentation to retain only major vessels and determining (E3) a primary hepatic zone (PHZ) from the retained major vessels; determining (E4) at least one quantitative feature from the primary hepatic zone, the liver segmentation and the liver lesion(s) segmentation; processing (E5) the determined quantitative features with a classification model to determine a liver resection complexity score for the patient.

Systems and methods are provided for removal of clot material from a treatment site in a blood vessel, particularly in venous vasculature. A treatment device (101) can include a core member (115) having a distal portion (109) and an inner coil (111) surrounding the distal portion of the core member. A helical outer member (113) surrounds at least a portion of the inner coil, and a sheet of flexible material (117) extends between the inner coil and the helical outer member, such that the sheet extends helically around the inner coil to provide a surface for clot engagement at the treatment site.

The invention discloses a highly convenient and safe palm lock, which comprises a lock body, a palm print acquisition module, a palm vein acquisition module, an iris recognition module, a control unit and a mechanical execution unit, and is characterized in that the palm print acquisition module is used for acquiring palm surface texture features and comprises an optical imaging unit and an infrared light supplement lamp; the palm vein acquisition module is used for acquiring vein blood vessel distribution characteristics in a palm and comprises a near-infrared light source and an infrared sensor; the iris recognition module is used for obtaining human eye iris texture features. Therefore, single-feature quick unlocking (convenience) and multi-feature combined verification (high safety) are supported, a user can dynamically configure a verification mode through a mobile phone APP to adapt to different scene requirements (such as household daily palmprint and office palmprint + iris), the three biological features are independently collected, the forging difficulty is high, the combined verification safety is high, and the verification efficiency is high. The palm fitting area is designed to be arc-shaped and aligned with the camera, and the identification time is less than or equal to 2 seconds.

The invention provides a limb thrombus monitoring device and method based on arteriovenous recognition, and the device comprises a monitoring management middle platform, a multi-modal data collection module, a vein recognition module, a feature extraction module, and a risk assessment module. The monitoring management middle platform is connected with the multi-modal data acquisition module, the vein recognition module, the feature extraction module and the risk assessment module, and manages each unit; the multi-modal data acquisition module is used for acquiring image data of limb parts of a patient; and the vein recognition module is used for recognizing and positioning the limb vein position of the patient based on the near-infrared imaging data to obtain vein position information. The accuracy of thrombus monitoring, evaluation and judgment can be improved, and the problem that the thrombus monitoring process mainly depends on clinical experience of medical staff for judgment is avoided. Therefore, the thrombus monitoring and judging efficiency and accuracy are improved.

The invention discloses a vein blood vessel image processing method and device, equipment and a storage medium. The vein blood vessel image processing method comprises the steps of collecting a vein blood vessel image; the collected vein blood vessel image is preprocessed; an improved U-Net segmentation network and an improved Zhang-Suen skeletonization algorithm are adopted to process the preprocessed image, and multi-modal results are fused to obtain a blood vessel segmentation result; and based on a blood vessel segmentation result, performing blood vessel three-dimensional modeling by adopting a multi-stage B-spline mapping method, and quantitatively analyzing blood vessel spatial geometric features and hemodynamic parameters to obtain a blood vessel form-function joint evaluation index. The vein blood vessel image is processed and analyzed, three-dimensional modeling is carried out on the blood vessel, the radiation path of radiotherapy is planned, and a foundation is laid for follow-up treatment of varicosity through in-vitro radiation.

The invention discloses an extravascular stent, and relates to the technical field of medical instruments. The extravascular stent comprises a first sleeve joint piece, a second sleeve joint piece and a third sleeve joint piece, the first sleeving piece is suitable for being arranged on the periphery of a vein in a sleeving mode, a plurality of deformation grooves are formed in the first sleeving piece, the area between every two adjacent deformation grooves is hollowed out, and the deformation grooves are used for enabling the first sleeving piece to adapt to the diameter change of the vein; the second sleeving piece is connected with one side of the second end of the first sleeving piece, and the second sleeving piece is suitable for being connected to the periphery of the artery blood vessel on the upstream side in a sleeving mode; the third sleeving piece is connected with the other side of the second end of the first sleeving piece, and the third sleeving piece is suitable for being connected to the periphery of the artery blood vessel on the downstream side in a sleeving mode. According to the extravascular stent provided by the invention, the structural design is improved, the mounting convenience of the extravascular stent is improved, the operation time is shortened, the adaptability of the extravascular stent to the diameter change of a vein is improved, the material cost is saved, and the treatment cost is reduced.

The utility model relates to the technical field of medical instruments, in particular to a pacemaker electrode wire, which comprises a wire conduit, the wire conduit comprises a head part and a tail part which are connected with each other, the head part is provided with an electrode assembly, and the electrode assembly comprises a first electrode and a second electrode which are electrically connected with each other. The first electrode and the second electrode are arranged in a spaced mode in the direction from the head to the tail, and a fixing piece located between the first electrode and the second electrode is arranged on the outer side of the wire conduit. The head of the wire conduit can be sent to the right ventricular apex of the heart of a patient through vein puncture, and the fixing piece is in contact with and fixed to the surface of the endocardium, so that the first electrode is firmly fixed to the right ventricular apex, the electrode wire is kept stable in the heart of the patient, and the electrode wire is prevented from shifting or falling off; and the normal cardiac function of the patient is ensured.

The invention discloses a full-automatic venipuncture guiding method and system based on an AI image, and relates to the technical field of medical treatment.The method comprises the steps that an ultrasonic sensor is adopted as an imaging device, and real-time vein blood vessel images of a venipuncture area of an arm of a patient are collected in real time; sending the vein real-time image to an image processing system; processing the vein real-time image by adopting an image processing system and utilizing a first AI image processing model so as to determine a plurality of cross section vein features and a plurality of longitudinal section vein features; using a multi-axis robot to drive an ultrasonic sensor to move to a target puncture vein position; acquiring a real-time vein cross section image of a target vein segment corresponding to the target puncture vein position in real time; rendering the real-time vein cross section image into a real-time vein visual image capable of simulating the dynamic state of blood flow by adopting an image processing system and utilizing a third AI image processing algorithm; and an auxiliary puncture display is adopted to display a real-time vein visual image in real time.

Apparatus, systems, and methods are provided for optimizing intracardiac filling pressures and cardiac output in patients with heart failure, conduction disease, and atrial fibrillation. The system is able to adjust and optimize intracardiac filling pressures and cardiac output by adjusting heart rate and the effective amount of total body blood volume. The device includes an adjustable member that may create a mean pressure differential in order to manifest an effective “mechanical diuresis” by sequestering extraneous blood volume to the high-capacitance of the venous vasculature. The system is therefore designed to reduce intracardiac filling pressures while maintaining or even increasing cardiac output.

The invention relates to the technical field of biological 3D printing, in particular to a spray head device, a biological 3D printer and a using method of the biological 3D printer, and the spray head device comprises a moving seat, a suspension frame, an artery blood vessel printing assembly, a vein blood vessel printing assembly and a tissue printing assembly; the movable seat can move along an X axis, a Y axis and a Z axis; the suspension is installed on the movable base and can move along with the movable base. The artery blood vessel printing assembly is installed on the suspension frame and can conduct spraying to form artery blood vessels. The vein blood vessel printing assembly is mounted on the suspension frame and can spray to form vein blood vessels; the tissue printing assembly is installed on the suspension frame and can spray to form human tissue. Complex biological structural bodies such as artificial blood vessels or kidneys can be smoothly printed, the printed artificial blood vessels are rich in structure, different parts forming the artificial blood vessels or kidneys can be printed at the same time, the printing efficiency and the resolution ratio are improved, and the printing cost is reduced. And the performance of the printed complex biological structures such as artificial blood vessels or kidneys is guaranteed.

The utility model discloses a medical transfer flatcar which comprises a supporting plate, fixing boxes are fixedly installed on the left side and the right side of the surface of the supporting plate, four movable rods are evenly distributed above the fixing boxes, and the lower ends of the movable rods are rotationally connected with the fixing boxes through damping shaft seats. The upper ends of the four movable rods are rotationally provided with the same transverse frame through damping rotating shafts, a plurality of clamps are fixedly installed on the outer side of the transverse frame, a collecting groove is formed in the upper surface of the transverse frame, a supporting rod is rotationally installed on the inner surface of one end of the collecting groove through a damping shaft, and a hanging mechanism is arranged on the outer side of the top end of the supporting rod. When infusion is carried out in the process of transporting a patient, the hanging stability of a medicine bottle can be ensured, the situation that the medicine bottle shakes and falls off is avoided, meanwhile, the situation that an infusion tube shakes in the moving process, consequently, the whole tube body shakes synchronously can be avoided, and the phenomenon that a needle deviates in the vein of the patient along with shaking of the infusion tube is avoided.

The embodiment of the invention provides a fundus artery and vein segmentation method and device, electronic equipment and a storage medium, and belongs to the technical field of image processing. The method comprises the following steps: acquiring a fundus blood vessel topological structure labeling sample set, and acquiring a fundus artery and vein labeling sample set; acquiring an arteriovenous segmentation loss function; based on the fundus blood vessel topological structure labeling sample set, performing model training to obtain a target fundus blood vessel topological structure classification model; based on the target fundus blood vessel topological structure classification model, performing function adjustment on the arteriovenous segmentation loss function to obtain an initial total loss function; based on the fundus artery and vein labeling sample set and the initial total loss function, performing model construction to obtain a target fundus artery and vein blood vessel segmentation model; and based on the target fundus artery and vein segmentation model, performing artery and vein segmentation on preset fundus artery and vein image data to obtain a fundus artery and vein segmentation image. According to the embodiment of the invention, the accuracy of fundus artery and vein segmentation can be improved.

The application discloses an arteriovenous fistula system, and relates to the technical field of medical devices, which comprises a fistula catheter, a handle, a power transmission line and a power output controller. The application makes the operation of the fistula catheter head more convenient, realizes accurate detection of the relative displacement amount of the head electrode, makes the fistula catheter head not loosen even if the external force disappears after being closed, improves the structure of the heating electrode, and makes the size and angle of the fistula not adversely affect the blood flow. The application adds blood flow, blood pressure, temperature and other sensors in the fistula catheter, cooperates with the control function of the power output controller, realizes accurate detection of the opening and closing state of the fistula catheter head, automatic detection of the arteriovenous vessel wall capture, safe output of energy and heating control of the fistula catheter head electrode. The application is more beneficial to the operation of doctors in clinical use and can obtain better fistula effect.

The utility model provides a microsurgery vascular anastomosis training operation table, which is characterized in that a fixing block protruding upwards is fixedly arranged at the left position of the top surface of a base plate, and a left plain end needle head is fixedly inserted into the fixing block from left to right; a sliding block capable of adjusting left-right transverse sliding is arranged at the position, close to the right, of the top face of the base plate, and a right plain end needle is fixedly inserted into the sliding block from right to left. The left plain-end needle and the right plain-end needle are oppositely arranged above the top face of the base plate in a left-right spaced mode, and the two ends of the simulated blood vessel are fixedly connected to needle tubes of the left plain-end needle and the right plain-end needle in a sleeved mode respectively. According to the vascular anastomosis training operation table, the simulated blood vessel can be effectively fixed, pulse water flow or constant water flow is connected to the connecting base of the right plain end needle head, and the simulated blood vessel can be used for simulating an artery blood vessel or a vein blood vessel of a living animal for vascular anastomosis training. When the blood vessel anastomosis training operation table is used for training, blood vessels of living animals do not need to be used, implementation is convenient, and skill training is carried out.

The application discloses an arteriovenous fistula blood vessel lining support and a use method thereof, and the arteriovenous fistula blood vessel lining support has a three-way pipe structure; the axes of two passages in the three-way pipe structure are on a straight line to form a straight pipe, and the axis of the other passage has a variable included angle with the straight line formed by the axes of the first two passages to form a bifurcated pipe; the straight pipe and the bifurcated pipe jointly form a three-way shape of the support with an inner cavity and have optional additional structures near each port; the straight pipe is used for being implanted into an arterial blood vessel; and the bifurcated pipe is used for sleeving a venous blood vessel which needs to be connected. After the arteriovenous fistula blood vessel lining support is embedded, the occurrence of turbulent flow is effectively reduced, blood composition deposition is reduced, the probability of vascular hyperplasia and vascular stenosis is reduced, the arteriovenous fistula maturation time is shortened, and the use time of the fistula is prolonged.

The invention discloses an enzyme electrode method efficient blood glucose measuring device for real-time monitoring of diabetes, and relates to the technical field of blood glucose detection. The enzyme electrode method efficient blood glucose measuring device for real-time monitoring of diabetes mellitus comprises a detection box main body, a detection cavity is formed in the detection box main body, a detection opening used for stretching of the arm of a patient is formed in one side of the detection box main body, and a placement module is arranged in the detection cavity and used for bearing the arm, stretching into the detection opening, of the patient; a pressing limiting structure is arranged at the upper end of the placement module, and the bottom of the detection box main body is hollow and is provided with a supporting unit capable of being quickly opened and closed. According to the blood glucose measuring device, the blood sampling mode of the vein blood vessel of the arm of a patient is adopted to replace fingertip blood sampling, blood sampling obtained through fingertip blood sampling is capillary whole blood and contains tissue fluid, the measuring result is lower than the actual value, and the effect of venous blood sampled through the vein blood vessel is more accurate; the system is more suitable for real-time monitoring of patients in daily life.

The utility model belongs to the technical field of medical instruments, and particularly relates to a bloodletting device. In the bloodletting device, one end of a drainage tube is connected with a puncture needle through a three-way connector, the other end of the drainage tube is communicated with a drainage bag, and a peristaltic pump is sleeved with the middle of the drainage tube; the puncture needle is punctured into a vein of a patient, the pump head of the peristaltic pump is used for extruding the drainage tube to generate negative pressure in the drainage tube, blood is pumped out of the vein at a constant speed, the stable bloodletting effect is achieved, it is guaranteed that one-time bloodletting amount is sufficient, and the ideal treatment effect is achieved.

The present application belongs to the technical field of medical devices, and discloses a stripper, which comprises a pipe body, a flow channel formed between a first end and a pipe outlet, a plurality of mutually isolated cavities separated by the flow channel, each cavity being provided with a medicine inlet hole and a medicine outlet hole, a plurality of medicine inlet joints arranged in sequence at the first end and connected in one-to-one correspondence with the medicine inlet holes, and a sealing head detachably connected to the second end. The first end of the pipe body is closed, the second end is open, the interior of the pipe body is provided with a plurality of mutually isolated cavities, each cavity is provided with an independent medicine outlet hole, and anesthetic can be input into the interior of the pipe body through the medicine inlet hole connected with the medicine inlet joint. After the anesthetic flows out of the pipe outlet, the pipe outlet is blocked by the sealing head. At this time, when the anesthetic continues to be input into the medicine inlet hole, the anesthetic can only flow out of the medicine outlet hole. During the stripping operation, the anesthetic can perform multi-region anesthesia in the intravenous blood vessels, and the stripping and anesthesia can be performed simultaneously.

This application relates to a method and related apparatus for vascular imaging of an artificial artery and vein arm. The method includes the following steps: acquiring superficial near-infrared images and deep near-infrared images; layering the deep near-infrared images based on the superficial near-infrared images to obtain venous and arterial image information; acquiring pulsed Doppler ultrasound images and obtaining the relative positional relationship between the venous and arterial vessels based on the pulsed Doppler ultrasound images; calculating theoretical arterial image information based on the relative positional relationship from the venous image information; matching the theoretical arterial image and the arterial image, and completing the arterial image based on the matching result. This application has the advantage of improving the imaging effect of vascular imaging instruments.

The disclosure provides, in various embodiments, systems, devices and methods relating to ex-vivo organ care. In certain embodiments, the disclosure relates to maintaining an organ ex-vivo at near-physiologic conditions. The present application describes, for example, a method for using lactate measurement in the arterial and the venous blood lines of the Organ Care System Heart perfusion device to evaluate, for example, the: 1) overall perfusion status of an isolated heart; 2) metabolic status of an isolated heart; and 3) overall vascular patency of an isolated donor heart. This aspect of the present disclosure may use, for example, the property of myocardial cell's unique ability to produce / generate lactate when they are starved for oxygen and metabolize / utilize lactate for energy production when they are well perfused with oxygen.

The utility model relates to the field of medical supplies, and discloses an anti-backflow blood taking needle which comprises a vein blood taking end, a blood taking tube puncture end and a hose for connecting the vein blood taking end and the blood taking tube puncture end, a non-return piece is arranged at the joint of the blood taking tube puncture end and the hose, a silica gel sheet or a silica gel plug is arranged in the non-return piece, and the silica gel sheet or the silica gel plug is connected with the hose. The blood collection tube is used for limiting blood to flow only in the direction from the vein blood collection end to the blood collection tube puncture end. According to the anti-backflow blood taking needle, the non-return piece is arranged between the puncture end of the blood taking tube and the hose to automatically open or close the flow channel, so that blood is effectively prevented from flowing back into the vein of the human body from the blood taking tube in the vein blood taking process, the safety of a person with blood taken is guaranteed, the structure is simple, and the cost is low.

The invention relates to a monitoring system for use in extracorporeal blood treatment, comprising a holding device designed for placement in the area of ​​a patient's venous access, a sensor device attached to the holding device and designed to detect a change in the position of a venous needle within the venous access and to generate a sensor signal representing the detected change in the position of the venous needle, a detection device connected to the sensor device and designed to determine a display signal depending on the sensor signal, and a display device connected to the detection device and designed to output the display signal optically and / or acoustically.

The utility model relates to the technical field of practice teaching molds, and discloses a compression hemostasis teaching aid for adolescent emergency training, which is provided with a liquid bag, a simulated artery blood vessel, a simulated vein blood vessel, a simulated capillary and a micro pump, the liquid bag is used for storing simulated blood; the simulated artery blood vessel, the simulated vein blood vessel and the simulated capillary blood vessel are all of transparent structures and are respectively connected with the liquid bag, and the simulated artery blood vessel, the simulated vein blood vessel and the simulated capillary blood vessel are respectively connected with valves for controlling the on / off state of a pipeline; the micro pump is used for outputting pumping pressure to the liquid bag, and the pumping pressure of the micro pump is adjustable corresponding to the set flow velocity of the simulated artery blood vessel, the simulated vein blood vessel and the simulated capillary blood vessel. The first-aid training device can simulate different blood vessels of a human body and press the corresponding blood vessels to force blood flow in the corresponding blood vessels to be stopped, so that teenagers can practice operation in training, and the teaching effect of first-aid training of the teenagers is effectively improved.

The present invention relates to an equal-dose opposed-vessel monitoring pulmonary artery-pulmonary vein CT angiography method and system. For the method, the dose of the contrast agent bolus test, the flow rate and volume of the contrast agent, and the flow rate and volume of the normal saline are all consistent with those in the formal scan; during the bolus test, it is confirmed that a small amount of contrast agent flows into the pulmonary vein of the monitored slice while the pulmonary artery is filled, so as to obtain the optimal delay time of pulmonary artery CTA; it is confirmed that almost all of the contrast agent in the monitored slice has flowed through the pulmonary artery, and there is a trace amount of contrast agent at the end of the pulmonary artery near the periphery, so as to obtain the optimal delay time of pulmonary vein CTV. The system includes each module for realizing the above functions. The present invention can achieve accurate timing of pulmonary artery CTA and pulmonary vein left atrial CTV scans, and can also achieve accurate timing of combined one-stop right atrium ventricle pulmonary artery and pulmonary vein left atrium ventricle combined scans, realizing precise diagnosis and treatment.

This disclosure provides a measurement system and method for the pathological features of hypertensive retinopathy. The measurement system includes: an acquisition module that acquires fundus images; a partitioning module that receives the fundus images and identifies and partitions the optic disc region; a segmentation module that uses an arteriovenous segmentation model to segment the fundus images into arteries and veins to obtain a three-valued image of the segmentation results. The arteriovenous vessel marking results include arterial and venous marking results formed by marking the boundaries of vessels with diameters larger than a preset vessel diameter in the training fundus images, and small vessel marking results formed by marking the course of vessels with diameters not larger than the preset vessel diameter. The measurement module measures the pathological features of hypertensive retinopathy in the fundus images based on the vessels larger than the preset vessel diameter in the partitioning and segmentation results. This disclosure enables efficient and objective measurement of the characteristics of hypertensive retinopathy.

The utility model discloses a kind of venous hot compress sleeve, including the rectangular block of the sleeve main body made of skin-friendly material, sleeve main body is equipped with heating area, the left side of sleeve main body is equipped with first connecting belt, the right side of sleeve main body is equipped with second connecting belt, corresponding position of first connecting belt and second connecting belt is equipped with detachable connecting piece respectively, the position of first connecting belt close to sleeve main body is equipped with infusion leather strip connecting piece, the position of second connecting belt close to sleeve main body is equipped with elastic tightness area.The utility model can realize temperature controllable and heat preservation to a certain extent, improve hot compress operation convenience and security, not only can help patient expand venous vessel, promote drug absorption, also can relieve pain caused by vasospasm, reduce swelling or induration.