232 results about "Vascular Access Devices" patented technology

A vascular access device (VAD) monitoring system includes a VAD with a catheter tube that is subcutaneously disposed and incorporates a fluorescent dye. An optical imaging system is also provided, comprising a light source emitting infrared (IR) excitation light and a camera capable of detecting signal light emitted by the fluorescent dye upon exposure to the excitation light. This enables real-time monitoring of the VAD, allowing for the detection of any potential complications or issues related to the vascular access device. The combination of the catheter tube with the fluorescent dye and the optical imaging system provides a non-invasive and efficient means of monitoring the VAD, enhancing patient safety and improving overall healthcare outcomes.

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.

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.

Systems and methods of use for continuous analyte measurement of a host's vascular system are provided. In some embodiments, a continuous glucose measurement system includes a vascular access device, a sensor and sensor electronics, the system being configured for insertion into communication with a host's circulatory system.

Embodiments disclosed herein are directed to an anti-ingrowth cathlock including a compliant gasket. The cathlock can engage an outer surface of a catheter and secure the catheter to a stem of a port, or similar vascular access device, The gasket can be compressed between the cathlock and one of the catheter, stem, or port body to form a continuous outer profile therebetween and mitigate tissue ingrowth. Due to the tolerances during manufacture of the catheter, cathlock and port, gaps can occur between these portions when assembled, allowing for tissue ingrowth and complicating explantation of the port / catheter / cathlock assembly. The compliant gasket can be disposed on one of the port or the catheter and can fill these gaps, mitigating tissue ingrowth.

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.

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 patency instrument formed along a second portion of the lumen within the collapsible sleeve and into the VAD coupler, a translation handle that translates the patency instrument 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.

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.

The invention relates to automatic disinfection of vascular access device connectors. The disclosure also relates to a coupling device for coupling a vascular access device to a medical device, which may include a body, a spring, and a housing. The body may include a distal end, a proximal end, and a lumen extending through the distal end and the proximal end. The proximal end of the body may include a connector. The housing may be coupled to the proximal end of the spring and may enclose the connector. The distal end of the spring may be coupled to the body. The housing may include a flap, which may include an antibacterial compound. When the housing is disposed in the proximal position, the tab may cover the connector, the antimicrobial compound may contact the connector, and the spring may not be compressed. In response to movement of the housing from the proximal position to the distal position, the spring may be compressed and the flap may open.

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.

Dual chamber syringes facilitate selective drug mixing, dosing and administration through catheters or other vascular access devices (VADs), as well as pre-or post-administration irrigation of catheters with a single syringe instrument. A syringe barrel includes an outlet (such as a luer connector), variable volume axial series primary and secondary fluid chambers having nested respective plungers, plunger rods selectively translatable along a common axis within the barrel interior, and plunger plugs. A secondary fluid chamber is included within the primary plunger. A selectively resealable valve disposed within the barrel interior selectively isolates the secondary fluid chamber from fluid communication from the primary fluid chamber and / or the outlet of the syringe barrel. In some embodiments, the valve is a duckbilled valve or an umbrella-shaped valve. In some embodiments, the syringe is pre-packaged with a rinsing solution in the secondary fluid chamber.

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.

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.

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.

A secondary securement device for a vascular access device having tubing 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, with the bottom surface configured to be in contact with a patient's skin surface, and a plurality of pegs connected to the base and extending from the top surface of the base. Adjacent pegs of the plurality of pegs are configured to secure the tubing of the vascular access device.

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.

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.

A flush syringe with a syringe coupler facilitates twice dispensing of intravenous flushing solution to a patient's vascular access device (VAD), with reduced risk of VAD infection. The syringe coupler incorporates a female, first Luer connector on its proximal end that is removably coupled to the male, barrel Luer connector of the syringe, isolating the latter connector from external contamination. The syringe coupler also has a single-use, male, second Luer connector on its distal end of the housing that is adapted for coupled insertion into the patient's VAD, for delivery of at least a portion of the flushing solution retained within the syringe. After the first delivery, the syringe coupler is de-coupled from both the VAD and the syringe. Thereafter, the syringe's unused, sterile, male, barrel Luer connector is directly coupled to the VAD for dispensing the second portion of the flushing solution.

The invention relates to a delivery device for a probe with an asymmetric tip. Provided herein is a probe delivery device for advancing a probe into a vascular access device. The probe conveying device comprises an outer shell, a connector, a shield assembly and a probe assembly. And a shroud assembly including a shroud sleeve movable within the interior volume of the outer housing, the shroud advancing an appliance shroud handle, and a shroud pusher coupled to a proximal end of the shroud sleeve, the shroud handle is configured to slide along an outer surface of the outer housing to move the shroud sleeve distally from a first sleeve position to a second sleeve position. The probe assembly includes a probe movable within the shield sleeve and a probe pusher coupled to a proximal end of the probe, the probe pusher having a probe handle configured to slide along an outer surface of the outer housing to move the probe distally from a first probe position to a second probe position.

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.