59 results about "Arterial catheterizations" patented technology

A device for fixing a catheter, such as a peripheral veinous catheter, a central veinous catheter or a central arterial catheter, to the body of a patient. The device includes a housing, which can be closed by a lid, and a base coupled to the housing, surrounding the housing and enabling the housing to be fixed to the skin of the patient. The housing includes a first chamber through which the outer part of the catheter, which is placed in the vein, passes and a second chamber for accommodating and maintaining the catheter.

An orthogonal arterial catheter preferably includes a hub and a cannula. The hub preferably protects the cannula from potential kinking and shearing forces because the cannula upon exiting a patient's body enters the hub. The hub preferably provides a passageway through which the hose travels to a connector piece. The connector piece preferably attaches the device to a fluid line such as an arterial line transducer. In addition, the hub preferably includes a port that provides a channel through which a guide wire or a needle may gain access to the cannula. The hub also may include appendages extending from it to suture to the patient.

The invention relates to a portable blood purifying system, which comprises a high throughput dialyzer with an arterial duct, a venous duct, a washing liquid tube and a transfusion tube; the arterial duct is in turn connected in series with an arterial valve, an arterial pressure sensor and a blood pump; the venous duct is in turn connected in series with a venous valve, a venous temperature sensor, a venous bubble detector and a venous pressure sensor, so that an external circulation unit is formed; the washing liquid tube is connected in series with a pre-charging valve and is communicated with a washing liquid container; the transfusion tube is in turn connected in series with a temperature controller, a transfusion tube bubble collector and a transfusion pump, and is communicated with a waste liquid container, so that a waste liquid processing unit is formed; and the system also comprises a transfusion pump, a temperature control device, a transfusion tube, a gating valve and a first transfusion branch and a second transfusion tube branch, so that a transfusion unit is formed. The system is simplified in structure and convenient to carry; and the system is suitable for patients to do short-time dialysis for several times or night dialysis treatment at home as household treatment equipment, so that toxin tolerance of dialysis patients during dialysis period is relieved while medical cost is reduced.

A dual catheter ablation system with an arterial catheter and a venous catheter and at least two magnetic elements, a first magnetic element placed in the arterial catheter and a second magnetic element placed in the venous catheter, where at least one of the arterial catheter or the venous catheter carries an ablating electrode. The first magnetic element has a predefined polarity and the second magnetic element has an opposite polarity with respect to the pre-defined polarity. A protective sheath is provided for enclosing the catheter pair, the first magnetic element and the second magnetic element. The dual catheter ablation system is configured to be placed inside an anatomical region such that a target tissue is in between the first magnetic element and the second magnetic element, bringing the ablating electrode in close proximity to a target tissue.

An improved angiographic catheter that allows selective catheterization of the bilateral pelvic arteries via a unilateral single common femoral arterial entry site for the purpose of introducing radioopaque iodinated contrast solutions for both diagnostic and therapeutic purposes. The catheter has an optimal length, specific tapered and curved regions, and a progressively tapering diameter along its length. The catheter is made from a hybrid of soft, flexible hydrophilic and reinforced materials to allow for conformational changes in order to accommodate to the variety of vascular anatomy encountered in clinical angiographic practice.

Provided is a catheter suitable for catheterization of a right coronary artery using a right transradial approach. The catheter presents improved directionality, thereby requiring minimized external torque to be applied during insertion and diagnostic procedures. A catheter according to the disclosed design includes a tip near its distal end, a primary curve, a secondary curve, a tertiary curve and a proximal end accessible external a catheterized body. When properly inserted, the secondary curve may rest near the junction of the bracheocephalic trunk and the right subclavian artery, and the tertiary curve may rest in the superior curve of the right subclavian artery. In addition to improved directionality, the secondary and/or tertiary curve offers additional resistance against cephalic, or upward, back-up force by providing caudal, or downward, torque to more distal portions of the catheter body.

A catheter securement bandage may include a base layer formed with a multi-ply laminate comprising adhesive, gauze, and plastic layers. A top layer may similarly be formed with a multi-ply laminate comprising a layer adhesive, plastic, gauze, and an added layer of adhesive. By securing a hub portion and lure connector of a catheter, the catheter securement bandage maintains an optimal catheter insertion angle of the catheter into a patent this preventing kinking and obstruction of flow through the catheter.

The invention discloses a blood collection device used during invasive artery monitoring. The blood collection device comprises an arterial duct, a pressure connection tube, a pressure sensor, a continuous washing system and an electronic monitor, wherein the pressure connection tube is filled with liquid and provided with a switch. The blood collection device is characterized in that the pressure connection tube is provided with a blood collection plug, a three-way plug valve and an injection syringe, the blood collection plug is arranged on the part, on the root of a palm of a patient, of the pressure connection tube, the three-way plug valve is arranged between the blood collection plug and the injection syringe, and the injection syringe and the pressure connection tube are formed at a time. During blood collection, the injection syringe sucks the liquid in the pressure connection tube, blood is sucked to the position of the blood collection plug, a blood taking needle punctures the blood collection plug and the blood is collected; after blood collection is finished, the liquid sucked out by the injection syringe is injected into the pressure connection tube, waste of the blood of the human body of avoided, and pulsating pressure produced during injection of the injection syringe can reduce the blood vessel blocking probability; meanwhile, no bloodstain is formed on the blood collection position, and therefore the blood infection probability of the patient is reduced; in addition, blood collection steps are simplified and the quantity of consumables is reduced.

An integrated catheter and powered injector system includes a pump housed in a self-contained unit, a contrast media supply removably connected to the pump by a fluid supply line, an extension line removably connecting an arterial catheter to the pump, and a control device sending user control signals to the pump. The pump comprises a motorized pump drive sub-system operating the pump, and a battery electrically connected to and powering the pump drive sub-system. In response to signals received from the control device, the pump drive sub-system drives the pump to draw contrast media fluid from the supply into the pump through the fluid supply line and inject the contrast media fluid from the output of the pump through the extension line and into the arterial catheter at a controlled flow rate and/or pressure.

The invention belongs to the field of interventional therapy and relates to an ultrasonic-guided percutaneous interventional therapy guide system for an arterial duct and a usage method thereof. The interventional therapy guide system comprises a catheter and a guide wire; the catheter has a guide wire channel and has a certain curved radian; when the guide wire is not inserted, the catheter is provided with sequentially connected arcs with different bending degrees; the guide wire is woven by winding a head-tapered steel cable with a thin steel wire, and the head of the guide wire is most flexible; the guide wire stretches out of the head of the catheter, and the bending degree of the catheter is changed gradually along with the gradually increasing of the stretched distance; after the guide wire stretches out completely, the catheter almost becomes a straight line. By adopting the interventional therapy guide system, the catheter is utilized effectively and the ultrasonic guidance and detection are realized; the interventional therapy guide system is independent of radioactive rays, does not use a contrast agent and effectively solves harms in the present operation; the arteria cruralis is free of puncturing, so that the surgical operation is simplified and better operating effect is obtained.

The invention relates to an MAP2K1 marker for diagnosing the closing or opening of arterial ducts. The opened and closed arterial duct tissues are identified and analyzed through an ITRAQ proteomics method, and 132 different proteins are screened out; after signal path analysis is carried out, an MAP2K1 protein is selected; the MAP2K1 protein is identified with three methods including western blot, Qrt-PCR and immunofluorescence analysis, the expression of the protein in the arterial duct tissues of a human body is proved for the first time, and the protein has a significant difference in the closed and opened arterial duct tissues, so that the protein can be a key factor for regulating and controlling the closing or opening of the arterial ducts. The MAP2K1 protein can be used for clinical diagnosis of patent ductus arteriosus, and the accuracy of diagnosis is high.

A device for establishing an isolated perfusion including a pump arrangement, a venous catheter, and an arterial catheter, for establishing an artificial circulation in a target area of a human or animal body, which artificial circulation is isolated from the systemic circulation. The device has first means for feeding an analysis gas into the artificial circulation, and second means for monitoring whether a blood exchange takes place between the artificial circulation and the systemic circulation.

The present disclosure provides methods and compositions for treating coronary tissue damaged as a result of a cardiac disorder such as ischemia, acute myocardial infarction, vulnerable plaques, or reperfusion injury. Specifically, the cardiac disorder is treated using a multivalent molecule that is specific for a marker located, in or near the damaged coronary tissue and a marker located on a target cell (e.g., a stem cell). The multivalent molecule may be administered by intravenous injection, intra-arterial catheter, intramyocardial injection, or implantable device (e.g, stent).

The invention discloses a tissue project arterial duct unclosed plugging device, which is characterized by the following: knitting T shape mount with degradable biological material with elasticity; un-filling plugging material in the mount to stop blood flow; painting cell hyperplasia medicine on the surface of the plugging device; accelerating quick grow of plugging device metallic mount surface fiber cell and under bark cell; reaching the goal of with self cell to plug abnormal channel; possessing degradability; realizing self-repairing effect of unclosed arterial duct.

The invention relates to a method for continuously monitoring a blood pressure measurement using a sensor (3) connected by a hydraulic link (2) to an arterial catheter (1), said method comprising the steps of: - determining the dynamic parameters of said link (2), - analyzing the frequency content of the incident signal, - detecting one of the following situations: (a) ability of said link (2) to transmit the incident signal with a distortion below a threshold, (b) ability of said link (2) to transmit the incident signal with a distortion above said threshold and possibility of correcting the measured signal, (c) inability of said link (2) to transmit the incident signal with a distortion below said threshold and impossibility of correcting the measured signal, - periodic application of a mechanical action to the tubing providing the hydraulic link (2).

The invention discloses a continuous arterial blood glucose monitoring device and a control method thereof, belonging to the technical field of medical instruments and methods. By using the three-wayconnection, a pressure tube, a blood collection port, an arterial catheter and other devices of the original arterial pressure measuring monitor, several groups of conductors of continuous arterial blood glucose meter are controlled by program to turn on and off the corresponding device for realizing actions of switching, opening/closing, pinching, rotating, so that the truncation of the anticoagulant saline in the arterial pressure measurement process is sequentially realized, the program-controlled integrated acquisition syringe sucks the liquid in the arterial catheter to realize the program-controlled elevation of the blood surface, The electric clip clamps the small-scale integrated syringe for blood collection and testing, and records, stores and analyzes all kinds of data through the blood glucose meter, at the same time transmits to the outside world and realizes the alarm function, which can greatly reduce the workload of the medical staff and improve the accuracy and effect of blood glucose monitoring at the same time. The invention has the advantages of exquisite thinking, good modularization, strong anti-interference, low cost, easy program control, easy expansion of function and high blood sugar monitoring accuracy.

Provided are methods for creating a pressurized cadaver model used for surgical procedure training. In the method the internal jugular veins, common carotid arteries, brachial arteries, superficial femoral arteries and femoral veins thereof of a cadaver are exposed. One internal jugular vein is ligated and a drainage tube is disposed in the other internal jugular vein. An arterial catheter is inserted into one brachial artery and connected to a pressure transducer and an arterial cannula is placed in a carotid artery and connected to a fusion pump. Fluid is injected into the artery through the cannulated carotid artery. A representative example of the surgical procedure includes resuscitative endovascular balloon occlusion of the aorta.

The invention discloses a hemodialysis venous catheterization fixing strap and belongs to the technical field of venous catheterization fixing devices. The hemodialysis venous catheterization fixing strap comprises a fixing strap and at least one group of limiting components; one end of each limiting component is connected to the outer side of the fixing strap; one of the limiting components is selectively connected to an arterial catheter, and the other one is selectively connected to a venous catheter. The fixing strap is provided with holding mechanisms and an elastic mechanism; the holdingmechanisms are positioned on the two sides of the main catheter; the elastic mechanism comprises a sliding block which is slidably connected to the outer side of the fixing strap; the sliding sleeveis arranged on the limiting component in a sleeving way; and when the limiting component is tensioned, the limiting component pulls the sliding block to slide and abut against the holding mechanism, so that the holding mechanism presses against and holds the main catheter. The hemodialysis venous catheterization fixing strap has the beneficial effects that the pulling action of the venous catheterization can be converted into the holding action force for the main catheter, so that the activity of the venous catheterization is greatly limited, unintended escape of the venous catheterization from the blood vessel is avoided, the safety of the hemodialysis fixing strap is optimized and the pain of patients is reduced.