50 results about "Heart Catheters" patented technology

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.

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 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 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.

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.

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.

The invention belongs to the technical field of high-performance therapeutic platelet-rich plasma preparation processes and equipment, particularly belongs to the field of online ultrasonic treatment of platelet-rich plasma, and relates to an online ultrasonic activation device and method for platelet-rich plasma. The device and method are particularly suitable for promoting platelets to release active substances through ultrasonic treatment, the device comprises a shell, the shell comprises a first shell and a second shell which are split, and the first shell and the second shell define an ultrasonic treatment cavity with openings in the two ends; the ultrasonic treatment chamber is provided with an opening, conversion connectors are arranged at the opening, a hollow guide pipe is arranged in the ultrasonic treatment chamber, the two ends of the hollow guide pipe are connected with the two conversion connectors respectively, and the hollow guide pipe is communicated with external plasma collecting equipment and collecting equipment through the conversion connectors. The invention provides an online continuous ultrasonic treatment scheme through a modular pipeline series connection design.

A method for treating or repairing a damaged spinal disc of a patient may include inserting, using medical imaging, a shaft with a lumen extending from an exterior of a patient to the damaged spinal disc, dispensing copper particles, using the lumen, to the damaged spinal disc, and removing the hollow shaft from the patient. A system may include a syringe and copper particles in the syringe. A kit may include copper particles, and at least one of a guidewire, one or more dilators, a tubular retractor, a disposable endoscope, a disposable laser fiber; an endoscopic rongeurs, indigo carmine dye, or a fluid adaptor.

Rapidly insertable central catheters ("RICCs") and methods are disclosed. A RICC can include a first section of a first polymeric material in a distal portion of a catheter tube, a second section of a second polymeric material proximal of the first section, and a tapered junction therebetween. The first polymeric material has a first durometer. The second polymeric material has a second, lesser durometer. The junction is formed of the second polymeric material or a third polymeric material having a third durometer closer to the second durometer than the first durometer. The first section has a proximal portion disposed in a receptacle of the junction. When the RICC is inserted into an insertion site of a patient, a proximal lumen surface of a distal portion of the junction smoothly transitions onto a proximal lumen surface of the proximal portion of the first section without edges that catch on the skin.

The invention discloses a system and method for diagnosing pulmonary tuberculosis-pulmonary arterial hypertension through artificial intelligence chest CT imaging, and the system comprises a data acquisition module which is used for collecting a chest CT image of a patient in the supine position full inspiration period, and exporting the CT image in a DICOM format; the data processing module is used for carrying out full-lung automatic segmentation and lung lobe segmentation VTDLT calculation by using an AI algorithm through AI image analysis software; the quantitative analysis module is used for outputting the damage volume and the number and distribution of the affected lung lobes; the risk prediction module is used for combining the VTDLT with clinical parameters to construct a PH risk prediction model; according to the application, the pulmonary arterial hypertension is screened by combining CT imaging with an artificial intelligence algorithm, an original mode of screening through right heart catheter examination is not changed, a noninvasive, early-stage and accurate PH screening tool is provided for TDL patients, the use requirements of RHC are reduced, and the pain and medical burden of the patients are relieved.

A rapidly insertable central catheter ("RICC") including a catheter assembly and methods thereof are disclosed. For example, a RICC assembly includes a RICC and an introducer. The RICC includes a catheter tube, a catheter hub, and one or more extension legs coupled in the foregoing order. The catheter tube includes a side hole opening to an introducer lumen extending at least from the side hole to a distal end of the RICC. The introducer includes a retractable needle device, a syringe, and a coupling hub coupling the retractable needle device and the syringe together proximally of the side hole in an immediate deployment state of the RICC assembly. The retractable needle device includes an introducer needle. A needle tip in a distal end portion of a shaft of the introducer needle extends beyond the distal end of the RICC when the RICC assembly is in the immediate deployment state of the RICC assembly.

The application belongs to the technical field of preparation process and equipment of high-performance therapeutic platelet-rich plasma, and specifically to the field of online ultrasonic treatment for platelet-rich plasma, and relates to an online ultrasonic activation device and method for platelet-rich plasma, which is especially suitable for promoting the release of active substances from platelets through ultrasonic treatment and comprises a shell, the shell comprising a split first shell and a second shell, the first shell and the second shell enclosing an ultrasonic treatment chamber with open ends; a conversion joint is arranged at the opening, a hollow catheter is arranged in the ultrasonic treatment chamber, and the two ends of the hollow catheter are respectively connected with the two conversion joints and communicate with external plasma collection equipment and collection equipment through the conversion joints. The application provides an "online continuous ultrasonic treatment" scheme through modular pipeline series connection design.

A rapidly insertable central catheter ("RICC") including a catheter assembly and methods thereof are disclosed. The RICC assembly can include a RICC, an introducer, and a coupling system configured to couple the RICC and the introducer together. The catheter tube of the RICC includes a side hole in a distal end portion of the catheter tube that opens into a guide lumen that extends from the side hole to a distal end of the RICC. The introducer includes a syringe and a guide needle having a cannula. The coupling system includes a distal coupler that is slidably attached to the catheter tube proximal of the side hole. When the RICC assembly is at least in its immediate deployment state, the cannula extends through a longitudinal through hole of the distal coupler, through the side hole of the catheter tube, along the guide lumen of the catheter tube, and through the distal end of the RICC.

A device for catheterization is disclosed. Such a device includes a hollow catheter, a cylindrical sheath, and a flange through which the catheter passes. Before insertion, the sheath begins at a first opening near the catheter tip and extends into the catheter to a first circumferential fold, then back towards the catheter tip to a second circumferential fold about the tip to the exterior surface, and ends at a second opening attached to the flange. As the device is inserted up to a length, the flange abuts the cavity opening, and a corresponding length of the sheath deploys from the catheter interior, around the first and second circumferential folds, to the catheter outer surface. Once fully inserted, all, or a substantial portion, of the sheath initially positioned within the catheter has been deployed to the outer surface, thereby forming a protective barrier between the catheter and the surrounding tissues.

The patient trousers comprise a trousers body, two observation openings are formed in the front side of the trousers body, a cloth blocking piece is fixedly connected to the observation openings, a connecting assembly is connected to the front side of the cloth blocking piece, and two trouser legs are detachably connected to the bottom of the trousers body. The cloth blocking pieces are arranged on the front side and the crotch of the trousers, the whole view of the wound can be observed only by unzipping the connecting zipper, so that the privacy of a patient is protected, the probability of wound bleeding caused by movement of limbs of the patient can be reduced, the situation of the wound can be conveniently, rapidly and efficiently observed for a doctor and the patient, and the patient can conveniently, rapidly and efficiently observe the situation of the wound. And accidents are avoided.

To secure stable operation with a small liquid loss in a catheter pump.SOLUTION: A catheter pump includes a hollow catheter and a blood pump provided at a distal end of the hollow catheter. The hollow catheter has a feeder for feeding a conduit (8) extending between the distal end and a proximal end of the hollow catheter with liquid. The feeder has diaphragm pumps (10, 19), a magnetic device (10a), and a controller (11). The magnetic device (10a) operates the diaphragm pumps (10, 19) by a magnetic force. The controller (11) drives the magnetic device (10a) by generated pulse, adjusts flow rate and / or pressure generated by the diaphragm pumps (10, 19) by pulse frequency and stroke. The hollow catheter includes a shaft (2) arranged in the conduit (8). The liquid is used for flash the shaft (2).SELECTED DRAWING: Figure 1