142 results about "Vascular Access Devices" patented technology

An IV device assembly may include a lumen forming a fluidic channel within the IV device assembly. The lumen may be fluidically coupled to a vascular access device (VAD) coupler via a funnel coupler, and an IV device assembly coupler at a proximal end of the lumen. The IV device assembly may also include one or more of the following: a collapsible sleeve formed coaxially around a first portion of the lumen and mechanically coupled to the funnel coupler, a probe formed along a second portion of the lumen within the collapsible sleeve and into the VAD coupler, a translation handle that translates the probe out of a distal end of the VAD coupler, and a fixed grip formed around the lumen to maintain a position of the IV device assembly relative to the translation handle.

Provided herein is a blood draw syringe connectable to a vascular access device for performing a blood draw. The blood draw syringe includes a syringe barrel and a plunger assembly. The plunger assembly includes a plunger rod and a stopper positioned at the distal end of the plunger rod, with the plunger assembly moveable within the syringe barrel to move the stopper between a starting position and a stop position, with a first volume provided in the chamber with the stopper at the starting position and a second volume provided in the chamber with the stopper at the stop position. The syringe is configured to enable pre-setting of the plunger assembly within the syringe barrel prior to a blood draw, with the stopper being positioned at the starting to provide a first volume that limits a maximum vacuum pressure in the syringe barrel during the blood draw.

Techniques and technologies for vascular access devices are disclosed. A representative vascular access device includes an introducer having a shaft that includes a tip, a first aperture disposed proximate to the tip, a second aperture spaced apart from the tip, and an optical fiber disposed within the shaft that conveys light for emission from the first and second apertures. A catheter is disposed about the introducer and has a catheter distal end positioned between the first and second apertures. As the tip is advanced into the blood vessel, light emitted through the first aperture is diminished, indicating that the tip has entered the blood vessel. When light emitted through the second aperture is diminished, the practitioner knows that the catheter distal end has entered the blood vessel.

Systems and methods for infection prevention and treatment in biological conduits using electroporation or pulsed field ablation (PFA). The system includes an elongate member, such as a dialysis catheter, vascular access device, or peritoneal dialysis conduit, with at least one electrode positioned along, within, or around the member. A control unit applies pulsed electric fields to inhibit microbial colonization, disrupt bacterial biofilms, and alter permeability of bacterial or endothelial cells to enhance sterility or fluid exchange. The system may use real-time impedance monitoring, microbial detection, or fluid composition analysis to adjust electroporation parameters. Electroporation may synchronize with dialysis cycles or antimicrobial lock solutions. The method includes automated, clinician-controlled, or sensor-triggered treatments to reduce infections and improve device longevity. The system provides an alternative or augment to antibiotics, reducing the risk of drug-resistant infections while improving the longevity and safety of medical implants.

A securement assembly for supporting and stabilizing a vascular access device, such as a tunneled central venous access devices (CVAD) or a surgical drain, is provided herein. The securement assembly may comprise a base and a lid. The base may include a central post about / around which the external portion of the access device or surgical drain may be wrapped. The lid may extend from the base and may be configured to cover the external portion of the access device or surgical drain (when installed). In various embodiments, the base and the lid collectively define an annular chamber around the central post of the base.

An instrument delivery device for advancing an instrument into a vascular access device indwelling catheter includes an introducer housing comprising a housing coupler at a distal end thereof and an actuator movably coupled to the introducer housing to move the instrument between a first position where the instrument is disposed within the housing and a second position where a distal end portion of the instrument is disposed distally beyond the introducer housing. A lock of the delivery device secures the introducer housing to the vascular access device, with the lock including a lock coupler that mates with the housing coupler, with the lock coupler positioned about the housing coupler such that the housing coupler is positioned within the lock coupler. The lock also includes a blunt cannula and a pair of arms configured to engage the vascular access device and a fluid seal positioned within a lumen of the lock.

An injector assembly is described that includes an absorbent pad containing a disinfectant and a rotatable cap to ensure compliance with aseptic technique for use in a flushing procedure of a vascular access device (VAD). A method of disinfecting a vascular access device is also described.

A system for preventing or treating thrombosis associated with a vascular access device (VAD) may include an ultrasound transducer configured to emit thrombus-disrupting ultrasound waves into a patient's body around the VAD. The ultrasound transducer may include a fixation means for fixing the ultrasound transducer to the patient on the VAD. A method of such a system may include an ultrasound-emitting step. The ultrasound-emitting step may include emitting the thrombus-disrupting ultrasound waves from the ultrasound transducer into the patient's body around the VAD.

Provided herein is a blood draw syringe connectable to a vascular access device for performing a blood draw. The blood draw syringe includes a syringe barrel and a plunger assembly. The plunger assembly includes a plunger rod and a stopper positioned at the distal end of the plunger rod, with the plunger assembly moveable within the syringe barrel to move the stopper between a starting position and a stop position, with a first volume provided in the chamber with the stopper at the starting position and a second volume provided in the chamber with the stopper at the stop position. The syringe is configured to enable pre-setting of the plunger assembly within the syringe barrel prior to a blood draw, with the stopper being positioned at the starting to provide a first volume that limits a maximum vacuum pressure in the syringe barrel during the blood draw.

This vascular access device (10A) comprises: a distal-end-side connector (12); a tube (14) with flexibility that is inserted into the distal-end-side connector (12); a proximal-end-side connector (16) that is fixed to a proximal end of the tube (14); and a hollow cover (18A) that covers the tube (14) between the distal-end-side connector (12) and the proximal-end-side connector (16) and is capable of contracting in the axial direction. The cover (18A) has a deflection suppression part (34) that suppresses deflection of the tube (14). The tube (14) protrudes from a distal end of a catheter (100) as the tube (14) moves in the distal direction relative to the distal-end-side connector (12).

A vascular access system and method for ultrasound monitoring and an integrated sensor array are provided. The vascular access system may include a vascular access device, an ultrasound assembly, a fixation dressing, a base unit, and one or more monitoring devices. The ultrasound assembly may include an ultrasound probe that can be positioned on a catheter when inserted into the patient's vascular system and may be configured to allow integration of one or more sensors. Images from the ultrasound probe and readings from one or more sensors can be processed to generate parameters representing the state, events, or other information about the catheter. Display content, including images and parameters, may be provided to the monitoring device.

A connector for connecting a container containing a medical fluid to a vascular access device may include an upper housing defining a first internal chamber, and a lower housing coupled to the upper housing and defining a second internal chamber for circulation of the medical fluid into the outlet. The connector may further include a slider disposed at least partially in the first and second internal chambers, and a plug coupled to a distal end of the slider. The slider may be reciprocally movable between (i) an open position, where the plug is spaced apart from a floor of the internal chamber to allow the medical fluid to flow through the outlet, and (ii) a closed position where the plug abuts the floor of the second internal chamber to block the medical fluid from flowing through the outlet.

A secondary fixation device for a vascular access device having a tube includes a base including a first end, a second end positioned opposite the first end, a first side, a second side positioned opposite the first side, a top surface, and a bottom surface positioned opposite the top surface, and a plurality of pegs, the bottom surface is configured to be in contact with a skin surface of a patient; a plurality of pegs are connected to the base and extend from a top surface of the base. Adjacent pegs of the plurality of pegs are configured to secure a tube of the vascular access device.

The objective is to provide a vascular access device that can reduce the risk of damage to artificial blood vessels during puncture. [Solution] The vascular access device 9 includes an artificial blood vessel 91 and an access port 92 that protrudes radially from the artificial blood vessel 91. The artificial blood vessel 91 includes a curved portion 911a adjacent to the access port 92 that curves convexly toward the access port 92. It is preferable that the access port 92 contains an elastomer.

A vascular access device having a handle adapted to be releasably coupled to a proximal end of a catheter assembly and a slider extending through and configured to translate along a handle slot to deploy a guide element positioned at the distal end of a guide wire extending from the handle through a needle carrier and along the exterior surface of a needle which comprises a linear segment of reduced cross section configured to be positioned through a slit of a valve within the catheter assembly hub as the needle and guide wire extend through the catheter to install the catheter into a blood vessel. The valve being adapted to reseal after the needle and guide wire are removed and configured to allow for vascular access through the proximal side of the catheter and valve.

Systems and methods for delivering needles or catheters within target tissue including an apparatus that includes or a method involving, structure configured for placing a needle, a catheter or a cannula to provide vascular access. In one or more approaches, a vascular access device or system is provided for hemodialysis.

The extension set is configured to improve patency of the vascular access device. The extension set may include a probe that can be selectively advanced through the vascular access device to which the extension set is connected. The extension set may include or be configured to receive an integrated device for withdrawing blood from or infusing fluid into a patient's vascular system. Because the probe can be selectively advanced into the patient's vascular system, blood withdrawal or fluid injection can be performed through the vascular access device even when an occlusion has formed blocking a fluid pathway through the vascular access device.

Provided herein is an instrument delivery device for advancing an instrument into a vascular access device. The instrument delivery device includes an outer housing, a connector coupled to the outer housing and including a projection member that mates with the vascular access device, and an inner housing having a distal end positioned within the outer housing and engaged with a proximal end of the instrument. The inner housing moves relative to the outer housing so that a distal movement thereof moves the instrument from a first position to a second position, with a distal end of the instrument moving from within the outer housing to out beyond the distal end of the outer housing and the projection member. A fluid flow preventing seal provided in or adjacent the connector prevents a transfer of fluid between the vascular access device and the inner volume of the outer housing.

Conductive films comprising heparin modified polymers are provided. The heparin-modified polymer includes heparin covalently bound to a beta-substituted monomer having a conjugated backbone that is copolymerized with a non-functionalized peer thereof. The heparin-modified polymer on the conductive film may be prepared by copolymerizing a beta-substituted monomer with a non-functionalized monomer to form a polymer on the conductive film; reacting the polymer with N, N '-dicyclohexylcarbodiimide (DCC) and acetic acid to form an anhydride of the polymer on the conductive film; the anhydride is then reacted with the heparin to form a heparin modified polymer on the conductive film. A medical device having a coating comprising the conductive film is also described.

A disposable circuit for extracorporeal blood treatment comprising a filtration unit (2) and a blood circuit (6, 7) having a blood withdrawal line (6) and a blood return line (7) designed to be connected to the cardiovascular system of a patient, wherein the blood withdrawal line (6) and the blood return line (7) are provided with an arterial connector (40) and a venous connector (41) which are detachably connected to a vascular access device of the patient; at least one fluid line (15, 21, 25, 42; 42a) is connected to the blood circuit (6, 7) and the disposable circuit further comprises a first auxiliary connector (51, 53, 55, 57, 59) and a second auxiliary connector (50, 52, 54, 56, 58) which are arranged on the blood circuit (6, 7) or on the fluid line (15, 21, 25, 42; 42a) and are configured to be removably connected with the arterial connector (40) and the venous connector (41) in a recirculation configuration so as to define a closed circuit which allows fluid recirculation.

Imaging systems and methods are provided for in-well evaluation and data integration of integrated vascular access devices. Using such imaging systems and methods, the status of indwell integrated vascular access devices and the overall functionality of vascular access in acute care and alternative site setting can be better evaluated and monitored, reducing patient complications and experience, clinician burden, and the overall effectiveness of patient treatment and care. Such imaging systems and methods can also facilitate the use of imaging devices, such as ultrasound devices, to evaluate the current status of indwell vascular access devices and compare it to previous status or established clinical criteria. This can facilitate the predictive detection, identification, and / or diagnosis of emerging risks of catheter-related complications, or the intermittent and consistent detection of actual complications.

An extension set for introducing an instrument into a patient's vascular system via a vascular access device including a primary catheter is provided. The extension set includes an extension tube comprising a proximal end, a distal end, and an outer tube wall that defines a tube lumen and a distal connector positioned at the distal end of the extension tube. An instrument is disposed within the tube lumen and comprises a proximal end and a distal end, the instrument movable within the tube lumen to an advanced position where the distal end of the instrument extends into the primary catheter or beyond a distal tip thereof. The proximal end of the instrument comprises a retaining feature having a first outer diameter greater than a second outer diameter of the distal end of the instrument, the retaining feature comprising a reinforcing structure that prevents deformation of the retaining feature.

Techniques and technologies for vascular access devices having curvature for improved introduction of catheters into vasculatures are disclosed. A representative vascular access device includes a curved introducer having a shaft that includes a tip configured to penetrate at least a proximal wall of a blood vessel of a patient. The shaft may have a straight section and a curved section disposed between the straight section and the tip. The curved section may be configured to provide a curvature between the straight section and the tip such that a tip longitudinal axis that extends from the tip forms an introducer angle with a straight longitudinal axis of the straight section. The introducer angle may be configured to at least partially reduce contact by the tip and catheter with a distal wall of the blood vessel after the tip has been inserted through the proximal wall of the blood vessel.

Systems and methods for delivering needles or catheters within target tissue including an apparatus that includes or a method involving, structure configured for placing a needle, a catheter or a cannula to provide vascular access. In one or more approaches, a vascular access device or system is provided for hemodialysis.

A delivery device for delivering an instrument into a catheter assembly may include a syringe having a barrel and a plunger movable within the barrel. In response to depression of the plunger within the barrel, the instrument may be advanced distally. The instrument may include a catheter, a probe, a light pipe for sterilization, or other suitable instrument. In response to depression of the plunger within the barrel, the distal end of the instrument may be moved through the catheter assembly coupled to the delivery device and into the patient's vascular system.

The present disclosure relates to a catheter assembly with a movable distal tip support. Catheter assembly vascular access devices using such assemblies are disclosed. The catheter assembly includes a catheter distal tip support element movably disposed within the catheter lumen and over the introducer needle. The catheter distal tip support element is movable relative to the catheter and introducer needle and has a support stepped surface defining a support distal surface, the support distal surface is configured to contact the shoulder of the catheter and advance the catheter in a distal direction and prevent kink or kink of the second material of the catheter as the catheter is advanced into the vasculature of the patient.

The present disclosure relates to implantable vascular access devices. The present disclosure further relates to methods and kits including such vascular access devices and delivery systems for delivering such devices to a suitable implantation site. The present disclosure also relates to methods for implanting such devices and methods for locating such devices once implanted.

A secondary securement device for a vascular access device comprising tubing, the secondary securement device including a base, a first securing member, and a second securing member. The first securing member including a first end connected to the base and a second end positioned opposite from the first end, with the second end moveable relative to the base. The second securing member including a first end connected to the base and a second end positioned opposite from the first end, with the second end moveable relative to the base. The first securing member is configured to secure the tubing of the vascular access device at a first location, and the second securing member is configured to secure the tubing of the vascular access device at a second location spaced from the first location.

Syringe assemblies comprising an absorbent pad containing disinfectant and a rotatable cap to ensure adherence to aseptic techniques for use in flush procedures for vascular access devices (VAD's) are described. Also described are methods of disinfecting vascular access devices.