75 results about "Heart Catheters" patented technology

Rapidly insertable central catheter (“RICC”) assemblies include a RICC and an introducer. The RICC can include a soft catheter tube having an introducing aperture that opens into a primary lumen of the RICC. The introducer can include an introducer catheter including a hard catheter tube having an introducing hole that opens into a single lumen of the introducer catheter. When the RICC assembly is in a ready-to-deploy state, the introducer catheter is disposed in the primary lumen of the RICC such that a distal end of the introducer catheter extends past a distal end of the RICC. An introducer needle of the introducer can be disposed in the introducer catheter through both the introducing aperture and the introducing hole such that a beveled tip of the introducer needle extends past the distal end of the introducer catheter.

The invention discloses a method for noninvasive diagnosis of pulmonary arterial hypertension and a related device, and relates to the technical field of artery detection.The method comprises the steps that an echocardiogram result and right heart catheter pulmonary artery pressure data of a suspected pulmonary artery patient are obtained; the echocardiogram result is a tricuspid regurgitation spectrum; grading the quality of the tricuspid regurgitation spectrum based on a TR spectrum quality grading standard according to the regurgitation spectrum missing degree of the tricuspid regurgitation spectrum; according to the echocardiogram result and the right heart duct pulmonary artery pressure data, on the basis of the quality grading result of the tricuspid regurgitation spectrum, a personalized pulmonary artery hypertension diagnosis model suitable for different patients is constructed; according to the pulmonary arterial hypertension diagnosis model, on the basis of the echocardiogram result of the target pulmonary arterial patient, a pulmonary arterial hypertension diagnosis result of the target pulmonary arterial patient is obtained, and personalized accurate diagnosis can be carried out on different pulmonary arterial hypertension patients under the noninvasive condition.

A vascular occlusion catheter may be employed for at least partial occlusion of a target vessel. The vascular occlusion catheter system includes a proximal catheter shaft having at least one internal lumen, and a distal catheter shaft terminating in an atraumatic tip. An occlusion balloon is sealingly mounted to the proximal and distal catheter shafts. A central catheter shaft extends through the proximal catheter shaft, the occlusion balloon and into the distal catheter shaft. The proximal catheter shaft is secured to the central catheter shaft on a proximal side of the occlusion balloon and the distal catheter shaft is secured to the central catheter shaft on a distal side of the occlusion balloon. The occlusion balloon, the proximal catheter shaft and the distal catheter shaft have a greatest outer diameter of less than seven French (7 Fr) in an uninflated condition.

The invention discloses a pulmonary arterial hypertension risk prediction model based on night hypoxia and cardiac ultrasound indexes and a construction method thereof, and the method comprises the steps: collecting cardiac ultrasound examination indexes, right cardiac catheter examination data and night sleep respiration monitoring data of a patient with chronic thromboembolic pulmonary diseases; the method comprises the following steps: according to hemodynamic data measured by right heart catheter examination, grouping into a CTEPD accompanied PH (hereinafter referred to as CTEPH) group and a CTEPD non-accompanied PH group, and carrying out statistical analysis on all collected data; risk factors related to the CTEPH are screened out; and screening CTEPH prediction model variables and constructing a pulmonary arterial hypertension risk prediction model. According to the method, the pulmonary arterial hypertension risk prediction model based on the night hypoxia and cardiac ultrasound indexes is constructed, the CTEPH risk is diagnosed only by combining the hypoxia indexes with the cardiac ultrasound indexes, non-invasive risk assessment is achieved, no harm is caused to patients, operation is easy and convenient, the model performance is good, and the method can be popularized and popularized in hospitals at all levels in China and is wide in applicability.

A vascular occlusion catheter is configured for insertion, and at least partial inflation, into a targel blood vessel. The vascular occlusion catheter includes a proximal catheter shaft, a distal catheter shaft, and a semi-compliant or non-compliant occlusion balloon mounted at a proximal side thereof to the proximal catheter shaft and mounted at a distal side thereof to the distal catheter shaft. A central catheter shaft extends through the proximal catheter shaft, the occlusion balloon and into the distal catheter shaft. The central catheter shaft is constructed as the primary load-bearing chassis of the vascular occlusion catheter. The occlusion balloon defines a blown diameter between approximately twenty-five and approximately thirty-five millimeters and the occlusion balloon defines a double-wall thickness of between approximately 0.0003″ and approximately 0.0020″.

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.

A device for biofilm removal from an endotracheal tube is disclosed. Such a device may include a hollow catheter having a tip, wherein said device is inserted down an endotracheal tube of an orally intubated patient. Said tip may include a cylindrical central portion and a fin configured to dislodge biofilm from the inner lumen of the endotracheal tube as the device is rotated, either manually or mechanically, inside the endotracheal tube. The fin may be configured as a helix and positioned to spiral around said cylindrical central portion of the tip thereby forming a channel, defined by the pitch of said helix, about the circumference of the cylindrical central portion. Biofilm dislodged from the inner surface of the endotracheal tube by the rotational motion of the fin may be retained within the channel until the tip is removed from the endotracheal tube. The device may further comprise a motor for mechanically rotating the catheter and tip. Finally, the device may be configured to interface with a mechanical ventilator such that airflow to an intubated patient is not impeded while said device is used to remove biofilm from the inner surface of the patient's endotracheal tube.

Various systems (100) and methods (500) are provided for displaying information indicating whether a distance between a location of a feature in a region of interest of a subject and a location of a medical device (140) in the region of interest is within a safe range corresponding to the feature. The location of the feature in the region of interest may be determined (520). The position of the medical device (140) in the region of interest may be determined (530). The distance between the position of the feature and the position of the medical device (140) may be determined (540). Whether the distance is within the safety range may be determined (550). A display (218) may be controlled to display an ultrasound image (560) of the region of interest including the feature and the medical device (140) and to display the information (570) indicating whether the distance is within the safe range.

The invention discloses a non-invasive pulmonary arterial hypertension hemodynamic monitoring method based on machine learning, and belongs to the technical field of pulmonary arterial hypertension hemodynamic monitoring. The non-invasive pulmonary arterial hypertension hemodynamic monitoring method based on machine learning comprises the following steps: collecting BCG signal data through static data collection equipment; eCG signal data are acquired through dynamic data acquisition equipment; pPG signal data are collected through a photoelectric finger clip; static feature extraction is carried out on static data composed of the BCG signal data and the PPG signal data, and dynamic feature extraction is carried out on dynamic data composed of the ECG signal data and the PPG signal data; and inputting the static characteristics and the dynamic characteristics into a regression model, and training the regression model by taking the hemodynamic parameter CO measured by the right cardiac catheter at the same time as a target to obtain a cardiac displacement prediction regression model. By adopting the non-invasive pulmonary arterial hypertension hemodynamics monitoring method based on machine learning, the problems that an existing pulmonary arterial hypertension hemodynamics monitoring method is complex in operation and cannot meet daily rehabilitation training monitoring use are solved, and the prediction precision is improved.

A cardiac catheterization image recognition and evaluation method is disclosed. The first deep learning algorithm is used to conduct an object recognition process on the cardiac catheterization image to obtain the vessel object image. The image processing process is conducted to the cardiac catheterization image to obtain the vessel location image. The vessel object image and the vessel location image are combined to obtain the vessel contour image. The vessel type judging process is conducted to the vessel contour image to determine the type of vessel in the cardiac catheterization image. The second deep learning algorithm is used on the vessel contour image to detect the vessel occlusion location and to judge the vessel occlusion rate. Based on the type of vessel and the vessel occlusion rate at the vessel occlusion location, the cardiac catheterization image is evaluated to obtain the SYNTAX Score.

The present invention discloses a positioning device and method for a right heart catheterization pressure measurement transducer, belonging to the inspection and pressure measurement of right heart catheters in the technical field of electrocardiogram detection. The purpose is to solve the technical problems of cumbersome positioning and low positioning accuracy existing in the zero-point positioning of existing transducers. It includes: a bed surface, a mounting frame, a lifting lead screw, an RFID reader, a lower RFID tag, and an upper RFID tag; the RFID reader emits radio frequency signals, and the lower RFID tag and the upper RFID tag are activated and return response signals after receiving the signals; the RFID reader receives the response signals and calculates the distances between the lower RFID tag and the RFID reader, and between the upper RFID tag and the RFID reader respectively according to the time from sending the radio frequency signal to receiving the response signal, and calculates and determines the position of the fixing frame based on the distances between the RFID reader, the lower RFID tag, and the upper RFID tag pairwise. The entire positioning process only requires placing the RFID reader, greatly simplifying the procedure for zero-point positioning of the transducer, making the positioning process more convenient and with high positioning accuracy.

The invention relates to a calculus removal basket mechanism with a transparent film, and solves the technical problems of frequent instrument blockage and low calculus removal efficiency in a flexible ureteroscope and negative pressure sheath lithotripsy. The mechanism comprises a framework composed of a plurality of metal wires, a high-transparency film wrapping the periphery of the framework, an outer sleeve, a central guide pipe and a push-pull control device. The framework is automatically opened to form an umbrella-shaped or cup-shaped structure when being pushed out of the outer sleeve, and can be contained in a gap between the outer sleeve and the central guide pipe when being folded. In an operation, small stones are sucked out through the meshes under negative pressure, and large stones are taken out along with a lens after being intercepted by the film, so that synchronous operation of stone crushing and stone removing is realized. The high transparency of the film ensures that the surgical field is clear, the intrarenal pressure is stabilized in a safe range, and the risk of postoperative complications is remarkably reduced. The calculus removing device is simple in structure, convenient to operate, suitable for calculus of different parts such as renal pelvis and renal calyx, and high in efficiency and safety.

The utility model relates to an anchoring balloon solid catheter. The anchoring balloon solid catheter comprises a base, a connecting tube and a balloon, an inner cavity is formed in the base; the connecting pipe comprises an outer pipe layer, a solid rod and a channel, the solid rod is wrapped with the outer pipe layer, one end of the outer pipe layer is connected with the base, the channel is located in the outer pipe layer, one end of the channel is communicated with the inner cavity, the channel extends in the axial direction of the solid rod, and the channel is communicated with the outer pipe layer. The channel is staggered from the central axis of the solid rod; one end of the balloon is connected with the end, away from the base, of the connecting pipe, and the balloon is communicated with the channel. According to the scheme, it can be ensured that the catheter is powerful in pushing and not prone to being bent.

Rapidly insertable central catheters (“RICCs”), introducers, and insertion devices including combinations and methods thereof are disclosed. For example, a RICC system can include an introducer and a RICC insertion assembly including a RICC assembly disposed in a RICC insertion device. The RICC assembly can include a RICC, an access guidewire, and a splittable casing over a catheter tube of the RICC and the access guidewire forming a longitudinal composite. The RICC insertion device can include a frame and a nose cover forming a split channel that splits away from a through channel of a nose of the frame. The RICC insertion device can be configured for advancing the RICC assembly by rolling the longitudinal composite across roller wheels disposed in the frame. The through channel can be configured for advancing the catheter tube therethrough while the split channel can be configured for both splitting and passing the splittable casing therethrough.

The utility model discloses a scapular glenoid bone tunnel preparation positioning guider for arthroscopic surgery, which comprises a guider handle, a catheter I, a catheter II and a drill point, one end of the guider handle is fixedly provided with a hollow catheter I, the drill point for preparing a bone tunnel is inserted into the catheter I, the drill point is provided with an inner core and a depth limit mark, and the catheter II is provided with a depth limit mark. The inner core is taken out after the bone tunnel is drilled, a pull wire can pass through the inner core for later use, a second hollow catheter is fixedly arranged above the first catheter in parallel, a guide rod playing a guiding role is sleeved with the second hollow catheter, the axis of the second catheter is parallel to the axis of the first catheter, and the inlet end of the second catheter is longer than the inlet end of the first catheter. By means of the ingenious design, high-precision positioning and guiding in the operation process are achieved, the accuracy and efficiency of the operation are effectively improved, the purposes that the bone tunnel is manufactured at a time, and repeated attempts and adjustment are not needed are achieved, the manufacturing quality of the bone tunnel is improved, the operation time is shortened, and meanwhile the operation risk and the occurrence rate of complications are reduced.

Rapidly inserted central catheters ("RICCs") and methods thereof are disclosed. A RICC can include a catheter tube comprising a first section in a distal portion of the catheter tube, a second section in a distal portion of the catheter tube proximal to the first section, and a junction between the first section and the second section of the catheter tube. The first section of the catheter tube can be formed of a first material having a first durometer. The second section of the catheter tube can be formed of a second material having a second durometer that is less than the first durometer. The first section and the second section of the catheter tube can have a column strength sufficient to prevent the catheter tube from buckling when inserted into an insertion site and advanced through a patient's vasculature.

The present invention relates to a method of replacing a central line cap to a catheter, and a kit for central line cap care and replacement.

Disclosed herein are catheter placement systems. The catheter placement systems can include a needle, a catheter (e.g., a rapid insertion central catheter), one or more guide wires, and a reinforcement system configured to place the catheter while containing the patient-contacting portions of the catheter placement system in a sterile environment. Advantageously, the catheter placement systems can provide all of the tools necessary to access the vasculature, dilate the insertion site, and place the catheter within a single device, mitigating the need for repeated insertion of multiple tools and reducing the risk of introducing pathogens. Furthermore, the total time required to place the catheter is reduced, thereby reducing patient downtime and improving patient outcomes.

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.

1. Name of the designed product: catheter insertion tool. 2. Use of the designed product: The designed product is used as a catheter insertion tool to perform a catheterization, for example for a rapid insertion central catheter. 3. Design points of the designed product: in shape. 4. Picture or photograph best indicating the design points: perspective view 1. 5. Other circumstances or explanations: natural break lines in the product view indicate omitted parts.

Aspects of the instant disclosure relate to various types of medical catheters with a deformable body that deflect in response to a force exerted on the catheter tip. A magnetic field sensor and permanent magnet respectively coupled on either side of the deformable body are used to determine a change in a magnetic field associated with the deflection of the catheter tip. Controller circuitry may receive a signal from the magnetic field sensor indicative of the deflection of the deformable body and associate the signal with the force exerted.

A mask frame, comprises a central conduit connection aperture and lateral arms having a 3-D curvature. The lateral arms extend: outwardly from a center of the frame, rearwardly, towards the patients ears, and upwardly, along a vector passing from below the nose to a point between the temple the top of the ear. The lateral arms "twist" along their length, such that a bottom margin of an end of each lateral arm is positioned further away from a notional vertical plane passing through the centre of the conduit connection aperture than a top margin. Also provided is an anti-rotation feature which limits or prevents rotation between straps of a headgear, and the mask frame. Further provided is a buckle for a closed loop headgear the buckle being formed with a plurality of openings and posts configured to form an angled headgear strap path through the buckle through which part of a headgear strap loop can pass. The buckle also comprises a friction loop opening through which a further of the headgear strap loop can pass, the angle of the angled path being such that the further part of the headgear strap loop frictionally engages the friction loop opening. 20 24 22 72 63 11 O ct 2 02 4 2 0 2 4 2 2 7 2 6 3 1 1 O c t 2 0 2 4

The utility model relates to medical instrument technical field provides a kind of catheter assembly and steam ablation equipment for peripheral blood vessel steam ablation, and the catheter assembly for peripheral blood vessel steam ablation includes central catheter, balloon catheter, balloon structure and steam generating device, balloon catheter is sleeved outside central catheter, balloon catheter is suitable for liquid and gas to be introduced;Balloon structure is located outside balloon catheter, and balloon structure is communicated with the space in the tube of balloon catheter, and balloon structure is suitable for expansion and contraction;Steam generating device is located in balloon catheter, and steam generating device is used to convert liquid into steam, and steam is used to fill balloon structure.The utility model's catheter assembly for peripheral blood vessel steam ablation, liquid is converted into steam by steam generating device to fill balloon structure, while multilayer balloon catheter structure and pressure monitoring design effectively reduce the risk of blood vessel rupture, with the advantages of accurate controllable, minimally invasive efficient, reduce the risk of blood vessel rupture.

Disclosed herein are two-piece rapid insertable central catheters (RICCs), introducers therefor, and methods thereof. For example, an introducer and a distal catheter component of a RICC can be combined in an introducer assembly configured to be actuated with a single finger of the same hand while the introducer is held between the thumb and another finger or fingers of the hand. A catheter advancement hub of the introducer includes a manifold coupled to a proximal portion of a distal catheter hub component of the distal catheter component. A guide needle of a syringe of the introducer has a needle shaft extending through the manifold and a distal end of the distal catheter component. An introducer housing is positioned over a syringe tip, the manifold, and the proximal portion of the distal catheter component. The introducer housing of the introducer is configured to provide column strength to a catheter tube of the distal catheter component during venipuncture.

An apparatus and method for generating cardiac catheterization data. The apparatus includes at least a processor and a memory communicatively connected to the at least a processor, wherein the memory contains instructions configuring the at least a processor to: receive a plurality of cardiogram data examples; train a catheter data predictor using the plurality of cardiogram data examples; input a cardiogram data signal; generate a plurality of catheterization parameters from the cardiogram data signal and the catheter data predictor; and display the plurality of catheterization parameters.

Rapidly Insertable Central Catheter (RICC) Insertion Tool

Rapidly Insertable Central Catheter (RICC) Insertion Tool

The invention discloses a direction and depth controllable endoscope operation depth limiting device and a using method, and belongs to the technical field of spine endoscopes, the direction and depth controllable endoscope operation depth limiting device is characterized in that a direction locking mechanism is arranged on a depth limiting base body, and the direction locking mechanism is used for fixing the device to the skin surface of an operative incision to prevent the depth limiting device from rotating; the hollow catheter is connected to the depth limiting base body, the hollow catheter forms a channel for an endoscope to pass through, the insertion depth of the endoscope is limited through the locking piece, in addition, water suction holes are formed in the bottom of the base, and normal saline injected into a wound can be sucked away through the water suction holes. By arranging the direction locking mechanism, the circumferential position of the device can be flexibly adjusted and locked in an operative incision, rotation of the limiting device in the operation is effectively prevented, the stability of the endoscope operation direction is ensured, and drainage of perfusion saline water in the endoscopic operation is facilitated.

The present disclosure relates to central venous catheters used in the healthcare sector, and comprises coating the surfaces of temporary central catheters with multilayer film structures containing resveratrol and acetylsalicylic acid groups to form a nanocomposite structure providing antibacterial properties and clot-formation preventing activity. By means of the strong antioxidant and anti-inflammatory properties of resveratrol and the antiplatelet effect of acetylsalicylic acid, antimicrobial properties are imparted to the catheter surface, and the risk of infection development during long-term catheter use is reduced.

A heart catheter for removing at least one leaflet of a defective heart valve includes a catheter sheath having a proximal end, a distal end, and an interior passageway extending between the distal end and the proximal end. A catheter wire is insertable into the passageway of the catheter sheath, with the catheter wire having a proximal end and a distal end. A first basket is coupled to the distal end of the catheter wire and is sized and configured for being received interiorly of a heart valve. A second basket is coupled to the distal end of the catheter wire and is disposed distally (more aortic) than the first basket. The second basket is sized and configured to interiorly receive one or more valve leaflets and the first basket.