205 results about "Vascular access" patented technology

A computer-implemented method of identifying a vascular access site for inserting an interventional device in order to reach a target site in a vasculature, is provided. The method includes computing a success metric for multiple potential vascular access sites. The success metric represents an ease of navigating the interventional device from the vascular access site to the target site via the vasculature, and is computed based on image data. A vascular access site is identified based on the computed success metrics.

The invention provides an outpatient hemodialysis infection event monitoring system and monitoring method, and is applied to the technical field of data processing. The method comprises the following steps: processing vascular access information of a target patient and an outpatient hemodialysis intubation record of the target patient to generate a hemodialysis event influence factor; processing the dialysis physiological parameter information of the target patient within the preset time to generate hemodialysis monitoring parameter information of the target patient; processing the historical infection data of the hemodialysis target patient to generate a hemodialysis prediction monitoring feature vector; and processing the hemodialysis event influence factor, the hemodialysis monitoring parameter information of the target patient, the hemodialysis prediction monitoring feature vector and the infection examination result information of the target patient based on the target hemodialysis event early warning model to generate hemodialysis infection event early warning information.

One or more image capture devices may capture, over a period of time, a plurality of images of an environment surrounding the one or more image capture devices. One or more processors may determine, based on the plurality of images, a plurality of locations of a plurality of medical devices within the environment over the period of time and a plurality of types of the plurality of medical devices. The one or more processors may update, based on the plurality of locations of the plurality of medical devices within the environment over the period of time and the plurality of types of the plurality of medical devices, a database including spatial relationships between the plurality of medical devices.

Valve assemblies having improved ability to selectively control flow of fluids through the catheter and prevent leakage of fluids from the proximal end of a catheter that is positioned within a patient. Such improved catheter valve assemblies also prevent leakage of fluids after repeated insertion and removal of medical instruments through the valve.

The invention belongs to the field of medical equipment, and provides an ultrasonic-guided automatic blood vessel puncture integrated device which comprises a wireless ultrasonic instrument, a button A and a button B are arranged on one side of the outer surface of the wireless ultrasonic instrument side by side up and down, a bearing support is fixedly installed at the bottom of one side of the wireless ultrasonic instrument, and a movable support is rotatably installed in the bearing support. A fixing groove is formed in the lower bottom face of the movable support, a driving mechanism is arranged in the fixing groove and comprises a micro hydraulic booster, the micro hydraulic booster is arranged in the fixing groove, and an electromagnetic clutch is installed at the output end of one side of the micro hydraulic booster; by means of the collaborative design of the driving mechanism, the puncture mechanism and button control, medical workers do not need to conduct collaborative operation with the two hands, the actions such as puncture needle core propelling and cannula deepening can be achieved by pressing the corresponding buttons, the operation process is simplified, and in the scene of war wound first aid and the like, a vascular access can be rapidly established, time is saved, and the treatment efficiency is improved.

The invention relates to the technical field of medical fixing equipment, and discloses artificial liver treatment filter pipeline adjustable fixing equipment which comprises a fixing box, an alignment groove is formed in the middle of the front end of the fixing box, a connecting rope is fixedly installed on the upper surface of the front end of the fixing box, and a dustproof cover is fixedly installed at the end, away from the fixing box, of the connecting rope. An alignment block is fixedly installed on the lower surface of the dustproof cover, a limiting rod is movably installed in the fixing box, the limiting rod is movably sleeved with a clamping spring, a clamping plate is fixedly installed at the inner end of the limiting rod, and a silica gel convex rib is fixedly installed on the inner side of the clamping plate. The adjustable fixing equipment for the artificial liver treatment filter pipeline is installed at the position of a connector, clamping plates on the two sides can be pushed to clamp a plug through a clamping spring installed inside, so that the effect of fixing the connector can be achieved, a worker can use the adjustable fixing equipment conveniently, and the vascular access fixing pipeline can be adjusted, hemostasis is achieved through compression, and the pipeline is prevented from being disengaged.

A system for detecting whether a vascular access has been interrupted in an arrangement in which two catheters or needles are present in a blood vessel, fistula or graft. A fluid line leading to a pump is connected via a first connector to a first indwelling catheter, and a fluid line leading from a pump is connected via a second connector to a second indwelling catheter. Each connector is equipped with an electrode in contact with the lumen of the connector, the electrodes electrically connected to an electronic circuit that measures the impedance or conductivity of fluid between the first connector and second connectors via a fluid path through the blood vessel, fistula or graft. An electronic controller receives the impedance or conductivity data and processes the data to determine whether a vascular access disconnection has occurred. The processing may involve filtering the signal received by the controller, and / or setting provisional flags for a disconnection event that may be cleared if the signal changes before the expiration of a counter.

A delivery device for delivering an instrument into a catheter assembly may include a housing having a proximal end, a distal end, and a slot. The delivery device may include a guide feature, which may be disposed within the housing. The guide feature may extend through the slot. The delivery device may include an instrument disposed within the housing and extending through the guide feature. In response to movement of the guide feature along the slot in the distal direction a first distance, a first end of the instrument may be advanced in the distal direction a second distance, which may be greater than the first distance. A second end of the instrument may be stationary with respect to the housing.

A mountable device for autonomous blood vessel mapping and instrument actuation configured to provide vascular access in an anatomical region selected from a group consisting of: frontal part of the thigh, frontal part of the pelvis, frontal pan of the groin, the wrist, frontal part of the arm and / or frontal part of the neck. The device is comprised of a housing or a frame, fixation structure, and a detection structure for detecting presence of a blood vessel. At least one sensor is arranged to provide a signal indicative of the presence of a blood vessel along the detection path. The device also comprises a computing unit, and an interface configured to communicate the entry location to the user for manual insertion of the percutaneous needle and / or cannula or to communicate the entry location to a movement structure for manual or automatic insertion of the percutaneous needle and / or cannula.

A system for detecting whether a vascular access has been interrupted in an arrangement in which two catheters or needles are present in a blood vessel, fistula or graft. A fluid line leading to a pump is connected via a first connector to a first indwelling catheter, and a fluid line leading from a pump is connected via a second connector to a second indwelling catheter. Each connector is equipped with an electrode in contact with the lumen of the connector, the electrodes electrically connected to an electronic circuit that measures the impedance or conductivity of fluid between the first connector and second connectors via a fluid path through the blood vessel, fistula or graft. An electronic controller receives the impedance or conductivity data and processes the data to determine whether a vascular access disconnection has occurred. The processing may involve filtering the signal received by the controller, and / or setting provisional flags for a disconnection event that may be cleared if the signal changes before the expiration of a counter.

The invention discloses hemodialysis room nursing equipment which comprises a base, an arm automatic limiting and fixing structure, a surgical incision expanding device and an arm double-side pressing and fixing device are arranged in the base, the arm automatic limiting and fixing structure is installed on the base in a clamped mode, and the surgical incision expanding device is fixedly installed on the top wall of the base. The arm double-side pressing and fixing device is fixedly installed on the top wall of the base. The invention belongs to the technical field of dialysis nursing equipment. In order to overcome the defects in the prior art, the hemodialysis room nursing equipment is provided, an arm can be automatically pressed and fixed in multiple directions, meanwhile, the skin of the intubation part of the arm is relatively relaxed, subsequent insertion of an artificial blood vessel is facilitated, a surgical incision of the intubation part can be expanded, and the operation efficiency is improved. And the body is ensured to be in a relatively stable state when being inserted into a'vascular access'.

A biologic matrix comprises a three-dimensional, resorbable collagen scaffold derived from a vascularized portion of a perfusion-decellularized, suspension-dried mammalian organ or tissue. The scaffold features a porous structure with a plurality of interconnected pores originating from one or more of its outer surfaces. The pores are created by forcing a gas through the vascular pathways of the mammalian organ or tissue while it is in a suspended position. This enables the gas to inflate the vascular pathways in all directions without restriction. The porous configuration substantially enhances the scaffold's effective surface area, making it at least 10 times greater than that of a non-porous scaffold having equivalent outer dimensions. In certain embodiments, the surface area considering the interconnected pores can be 15 times larger or more than the non-porous scaffold of equivalent outer dimensions.

An apparatus includes a cart having a vertical adjustment element configured to adjust a distance between the platform and a ground supporting the cart, the cart defining a surface for supporting an arm of the patient. The apparatus includes a manipulation device including a plurality of motors each configured to operably couple to a different one of a needle, a catheter, and a guidewire to selectively advance one or more of the needle, the catheter, and the guidewire, and a robotic arm having a first end mounted to the cart and a second end coupled to the manipulation device, the robotic arm having a plurality of segments joined together via a plurality of joints such that the robotic arm can be moved to position the needle, the catheter, and the guidewire for insertion into a target vessel in the arm.

Exemplary embodiments described herein are directed to a vascular access catheter device with an inline needle, the device having a needle portion that is linearly displaceable relative to a catheter portion, and vice versa, and to methods of performing blood transfer procedures using said device. Retraction of the needle portion relative to the catheter portion allows the catheter of the catheter portion to cover the needle tip during a blood transfer procedure, thereby preventing needle damage to a fistula / graft or peripheral vessel of a patient, as well as possible needle stick injuries to health care workers during removal / disposal of a used device. Because the needle still remains largely within the catheter after retraction, there is no risk of catheter collapse, kinking, etc., during use, which could compromise blood flow during a hemodialysis or other vascular access procedure.

The application relates to the technical field of medical devices, in particular to a balloon for vascular access intervention, which comprises an outer catheter, a cleaning pipe and a telescopic hose, one end of the outer catheter is provided with a guide wire connecting port, the cleaning pipe is arranged on the guide wire connecting port, and a guide head is fixedly connected to the end of the outer catheter far from the guide wire connecting port; medicine is smeared into a medicine applying groove, the medicine in the medicine applying groove will be attached to the inner wall of the blood vessel of a patient after the balloon body is inflated, covers the wound, avoids the elution of the medicine when the balloon body moves, and improves the use rate of the medicine.

A system for performing a neurovascular procedure includes an interventional device assembly having a guidewire having a guidewire hub, an access catheter having an access catheter hub, and a guide catheter having a guide catheter hub. The system includes a first hub adapter, a second hub adapter, a third hub adapter, and a support table, wherein each of the first hub adapter, the second hub adapter, and the third hub adapter is movably carried by the support table. The first hub adapter, the second hub adapter, and the third hub adapter are configured to move along the support table to drive the interventional device assembly until the interventional device assembly is positioned to effect supraaortic vascular access.

The present invention encompasses the use of general chymotrypsin inhibitors, and more specifically, substituted bicyclic substituted uracil of general formula (I) as described and defined herein, and 3-methylbenzo-[b] thiophene)-2-sulfonamido derivatives of general formula (II) for the manufacture of pharmaceutical compositions for the treatment or prevention of stroke, pulmonary embolism, pulmonary embolism, and the like. The traditional Chinese medicine composition can be used for treating thrombosis, deep vein or superficial vein thrombosis, thrombotic microangiopathy, infection, inflammation, thrombotic microangiopathy in a hypercoagulable state after transplantation, disseminated intravascular coagulation, vaccine-induced immune thrombotic thrombocytopenia, and thrombosis or occlusion at a vascular access part.

The utility model relates to a balloon dilatation catheter for a dialysis vascular access, which belongs to the field of medical instruments and comprises a catheter. The expansion assembly is arranged on the outer side of the catheter and comprises an expansion balloon which is arranged on the outer side of the catheter; the plurality of medicine filling grooves are uniformly formed in the outer side of the dilatation balloon; and the protection assembly is arranged on the outer side of the guide pipe. According to the dialysis vascular access expansion device, through the arranged expansion assembly, the narrow portion of a dialysis vascular access can be expanded, and the narrow portion of the dialysis vascular access can be coated with medicine, so that cell hyperplasia of the dialysis vascular access is reduced, and the number of times of dialysis vascular access expansion needed by a patient is reduced; in this way, the personal safety of a patient can be improved, meanwhile, under the action of the protection assembly, the medicine in the medicine filling groove can be prevented from being added to the non-narrow part of the dialysis vascular access, and therefore the inhibition effect of the medicine on dialysis vascular access cells is improved.

The invention relates to medicine, in particular to infusion therapy, kidney replacement therapy and gravitational blood therapy. The Y-shaped connecting pipe is designed in the form of a Y-shaped tubular pipeline connector with a branch pipe connected at the tail end, the branch pipe is connected to the ends of the pipelines, and at least one clamping and closing device is mounted on each pipeline. A port with a female joint is arranged at the end part of one pipeline, a connector with a male joint is arranged at the end part of the other pipeline, two pipelines can be connected to a catheter port or a puncture needle positioned at the access point of two blood vessels, and one pipeline can be connected to an extracorporeal circulation loop. The present invention can combine multiple passages into a single outflow and a single inflow and connect it to an extracorporeal circuit while also allowing for varying the linear and volumetric flow rate of the delivered liquid, reducing the resistance of the liquid, and automatically regulating the pressure in the pipeline circuit through a second passage point of a single system.

A wearable monitor is configured for early detection of internal bleeding events and particularly hematomas after vascular catheterization including cardiac catheterization. The wearable monitor is placed over an access location following the vascular catheterization procedure and the wearable monitor system periodically runs diagnostic test to detect changes in the tissue around the vascular access location. An emitter device may input an emitter input into the tissue and a detector device may then measure the emitter input after it has passed through the tissue, an emitter output. A computer may receive the data from the detector device and operate a program that determines changes in the tissue and in particular, pooling of blood in the tissue. The emitters may be electrodes that input an electromagnetic input, or an ultrasound emitter that inputs ultrasound sound waves, or a Near IR emitter that emits Near IR electromagnetic radiation.

In aspects, the present application provides dried hemostatic films, and methods of making and using such films. The present application contemplates dried hemostatic film compositions comprising hydrophobically-modified chitosan (hm-chitosan) and polyvinyl alcohol (PVA) and / or Pluronic acid. The present application further contemplates methods for hemostasis during vascular access procedures in patients in need thereof.

This document relates to the apparatus and methods used in the minimally invasive creation of arteriovenous fistula (AVF). In particular, the invention relates to the creation of an AVF using catheters and an alignment methodology that is based upon detection of asymmetric electric fields. The invention finds particular application in vascular access (VA) in the hemodialysis (HD) population.

The systems and methods are configured for vascular and / or neurointerventional procedures. The systems and methods allow safe and rapid access, including percutaneous access, to the carotid arteries, as well as cerebral or intracranial arteries, for the introduction of interventional devices, such as to treat disease conditions. The methods and devices may include vascular access and retrograde systems.

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.

A fluid diverting device of an apparatus for extracorporeal treatment of blood, configured to be placed in series between a main portion (22) of the apparatus (1) and a vascular access of a patient (P) and comprising a substantially H-shaped conduit assembly comprising an extraction conduit (23), a return conduit (24) and at least one bridging conduit (25, 125) connecting the extraction conduit (23) to the return conduit (24). The extraction conduit (23) is connectable upstream and downstream to an extraction line (6) of the apparatus (1), and the return conduit (24) is connectable upstream and downstream to a return line (7) of the apparatus (1). A plurality of valves (26, 27, 28, 29, 30, 32) or distributors (201, 202) operate on the extraction conduit (23), the return conduit (24) and the at least one bridging conduit (25) and are configured to divert the flow of liquid and / or blood without disconnecting the patient (P).

The present application generally relates to the field of treating or preventing "open" vascular surgical interventions to reduce or eliminate stenosis and / or vascular cancer conditions by administering macrocyclic triene immunosuppressive compounds.

The disclosure provides a dynamic vascular access and closure device for radial cinching of an access site. The device includes a tensioning tube, a resilient member disposed within the tensioning tube, and a plurality of sutures extending axially between a distal end of the tensioning tube and a proximal end of the tensioning tube. A proximal end of each of the plurality of sutures can be configured to attach to the resilient member such that movement of that suture causes compression or extension of the resilient member within the tensioning tube to provide cinching to the sutures.

The invention relates to an intravenous micromodule with a multi-sensor architecture and an associated real-time decision support platform that enables continuous metabolic monitoring in the intravascular fluid phase. The system combines NIR spectroscopy, an electrochemical microprobe, a thermal flux sensor, and optical density analysis in a single compact IV module, providing real-time, uninterrupted, and highly accurate monitoring of the patient's metabolic status. The module measures critical parameters such as glucose, lactate, ketone bodies, electrolyte balance, and oxygenation in the intravascular fluid without requiring additional invasive procedures. Measurements are processed by the hybrid sensor fusion algorithm on the device, providing a low-latency data stream to the clinical decision support panel. The system detects metabolic disturbances with an early warning mechanism in scenarios such as emergency departments, intensive care units, operating rooms, and in-home chronic disease management.Unlike existing glucose monitors or single-parameter IV sensors, this invention presents the first hybrid architecture capable of monitoring multiple metabolic parameters simultaneously, continuously, and with high stability via the same vascular line. Furthermore, the dynamic liquid-phase referencing method developed for sensor calibration minimizes measurement drift during long-term use. This system offers significant advantages in areas such as early diagnosis of metabolic crises, treatment optimization, drug titration, and reduced clinical workload.

A method of providing ventricular support for a human patient during a high-risk percutaneous coronary intervention procedure includes inserting a mechanical circulatory support device into the vasculature of a human patient. The mechanical circulatory support device being movable between a compressed state and an expanded state. The mechanical circulatory support device is delivered into a heart of the human patient with the aid of a delivery assist device. Operating. The mechanical circulatory support device is operated for a support period. A clinically significant arrhythmia adverse event (AE) associated with the mechanical circulatory support device experiencing the arrhythmia event between the time of vascular access with the mechanical circulatory support device and removal of the mechanical circulatory support device from the vasculature is approximately 2.3%.

The invention relates to the technical field of medical instruments, and provides a blood vessel communication assembly which comprises two puncture pieces used for being communicated with the two ends of a blood vessel respectively, a communication path arranged between the two puncture pieces and a switch arranged on the communication path, and the switch is used for controlling connection and disconnection between the two puncture pieces; the puncture part comprises a needle head part used for puncture, a penetrating channel communicated with the needle head part and an operation part communicated with the penetrating channel, the penetrating channel is used for blood circulation, and the needle head part is coaxially sleeved with an abutting part used for abutting against the inner wall of a blood vessel; the through channel is provided with a control assembly used for controlling the abutting piece to be opened or contracted. The blood vessel hemostasis device has the beneficial effects that the blood supply insufficiency of the blood vessel at the telecentric end is reduced while bleeding of the broken blood vessel is simply and quickly stopped.