25 results about "Central catheter" patented technology

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.

Rapidly insertable central catheters (“RICC”) and methods thereof are disclosed. In an example, a RICC includes a catheter tube, a suture wing disposed over a medial portion of the catheter tube, a hub coupled to a proximal-end portion of the catheter tube, and a number of extension legs extending from the hub. The catheter tube can include a first section in a distal portion of the catheter tube formed of a first polymeric material having a first durometer. The catheter tube can also include a second section proximal of the first section of the catheter tube formed of a second polymeric material having a second durometer less than the first durometer. The catheter tube can have a column strength sufficient to prevent buckling of the catheter tube when inserted into an insertion site and advanced through a vasculature of a patient without use of the Seldinger technique.

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″.

1. The name of the design product: arm protection sleeve (PICC care with modular). 2. The use of the design product: for providing arm catheter protection and comfortable support for peripheral intravenous central catheter (PICC) chemotherapy patients, reducing the external force effect of daily activities and sleeping posture on the catheter. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The distal tip structure of a rapidly insertable central catheter (RICC) can be required to perform different functions from that of the remaining, multi-luminal section, of the RICC catheter. As such, the catheter body can be formed of a first material and the distal tip structure can be formed of a second material. Forming the RICC requires joining these two materials while maintaining a smooth abluminal surface. A bifurcated plug including a second material can be placed within a first lumen or second lumen of the catheter body. A mandrel can be placed within a third lumen. The assembly can then be placed within a die to plastically deform the bifurcated plug into a distal tip structure. Advantageously, only a single structure is required to plug the lumen and form the distal tip structure, reducing complexity and associated costs.

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.

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.

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.

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.

The invention relates to the technical field of critical care, and discloses a mouth bite device for critical care, which comprises a central catheter channel, an external tooth guard plate and an internal tooth guard plate are arranged outside the central catheter channel, and an upper bite plate and a lower bite plate are arranged between the external tooth guard plate and the internal tooth guard plate. The upper biteplate and the lower biteplate are arranged on the left side and the right side of the upper biteplate, the inner side of the upper biteplate and the inner side of the lower biteplate are each provided with a preset dismounting opening, and an air cylinder is arranged below the preset dismounting openings. The dismounting openings, the air cylinders, the stabbing cones, the upper biteplate and the lower biteplate are matched, so that air can be blown to an affected tooth body of a patient and the vicinity of the affected tooth body through the stabbing cones and the air cylinders; the temperature of input gas is controlled through an external air pump and temperature control equipment, so that cold air or hot air is blown to the diseased teeth to cool or preserve heat of the diseased teeth, a temporary analgesic effect is achieved on the diseased teeth suffering from acute pulpitis, no analgesic agent or other dental instruments are needed to be matched with doctors, and the operation is simple and convenient. Only a nurse is needed to quickly and temporarily relieve pain of the diseased teeth of a patient.

Rapidly inserted central catheters ("RICCs") are described, including assemblies and methods thereof; in some modalities, an RICC assembly includes an RICC and an introducer; the RICC includes a soft catheter tube having an introduction port that opens into a primary lumen of the RICC; the introducer includes an introducer catheter comprising a hard catheter tube having an introduction port 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 placed into the primary lumen of the RICC such that a distal end of the introducer catheter extends beyond a distal end of the RICC;In addition, an introducer needle is placed into the introducer catheter through both the introduction opening and the introduction orifice so that a beveled tip of the introducer needle extends beyond the distal end of the introducer catheter.

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 rapidly inserted central catheter can include a catheter tube, a catheter hub, and one or more extension legs. The catheter tube can include a single-piece catheter tip coupled to a distal end portion of the catheter tube having a first section, a second section, and a third section. The first section of the catheter tip can have a uniform taper over an outer diameter thereof for dilating tissue around a needle tract from a size commensurate with an outer diameter of a needle shaft to a size commensurate with an outer diameter of the second section of the catheter tip. The third section of the catheter tip can have a non-uniform taper over an outer diameter thereof for dilating the tissue from the size commensurate with the outer diameter of the second section of the catheter tip to a size commensurate with an outer diameter of the catheter tube.

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.

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 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. The coupling system is 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 to a distal end of the RICC. The introducer includes a guide needle that extends through the distal end of the RICC when the RICC assembly is at least in an immediate deployment state. The introducer is configured to be actuated by a single finger of one hand while the distal end portion of the introducer is held between the thumb and another finger or fingers of the same hand. The coupling system includes a distal coupler that is slidably attached to a proximal end of the side hole of the catheter tube.

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. An abluminal surface of a distal portion of the junction smoothly transitions onto an abluminal surface of the proximal portion of the first section without an edge that catches on skin when the RICC is inserted into an insertion site of a patient.

A two-step rapid insertion central catheter (“RICC”) system that can include an introducer placement system, a docking station and a catheter placement system. The introducer placement system can place an introducer within a vasculature, which is supported by a docking station that detaches from a distal end of the introducer placement system. A catheter placement system can be configured to couple with the docking station, and a catheter can be advanced through the introducer into the vasculature. The introducer can then be split and retracted before the catheter placement system disengages the docking station. The docking station can be configured to split and disengage from the catheter. The RICC system can include a guidewire hub to prevent guidewire embolisms, collapsible sterile barriers to prevent contamination, and locking features to prevent premature advancement of guidewires, dilators and the like.

Central catheters, central catheter assemblies, and methods thereof. A central catheter includes a catheter tube coupled with a number of extension legs, a needle hub coupled with the catheter tube, where the needle hub is configured to receive a needle therethrough so that the needle is disposed within a primary catheter tube lumen. The central catheter includes a manifold hub for coupling the number of extension legs with the catheter tube. The manifold hub may be integral to the needle hub. The needle hub includes a septum within a needle-hub lumen, where the septum is configured to define a fluid tight seal with the needle and to prevent fluid flow through a proximal portion of the needle-hub lumen when the needle is withdrawn from the needle-hub lumen. A method for introducing a central catheter into a blood vessel.

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

A cutting device is provided to cut stenosed aortic valve leaflets using a percutaneous approach. The device has a central catheter that moves over a guide wire to pass into a patient's aortic valve. Cutting wires are deployed from the catheter and have high speed rotating cutting surfaces that cut into the stenosed tissue. A plurality of guidewires outward from the cutting wires serve to center and position the cutter within the patient's aortic valve. In an alternative embodiment, a shield is deployed between the cutting wires and the patient's aortic valve to prevent the cutting wires from cutting into the aortic root or aortic sinus wall.

The utility model belongs to the technical field of central venous catheters, and particularly relates to a thrombus filtering type central venous catheter which comprises an inner tube and an outer tube, the two ends of the inner tube are fixedly connected with a safety lock catch and a far end respectively, one end of the safety lock catch is fixedly connected with a mounting sleeve, and an adjusting threaded column is screwed in the mounting sleeve in a threaded mode. The outer wall of the adjusting threaded column is fixedly sleeved with a first adjusting cap, a pull pipe is movably sleeved between the inner pipe and the outer pipe, and the end, away from the adjusting threaded column, of the outer pipe is fixedly connected with a near end. Under the action of mutual cooperation of the mounting sleeve, the adjusting threaded column, the first adjusting cap, the first mounting cap, the second mounting cap, the pull tube, the pull ring, the filter screen fixing end, the thrombus filter screen and the elastic telescopic sleeve structure, a filter screen device capable of immediately adjusting the position and recycling thrombus is additionally arranged at the far end of the central catheter; and in the process of placing the central catheter, thrombus is filtered by adjusting the filter screen.