99 results about "Vascular Access Devices" patented technology

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.

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 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.

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.

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.

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.

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.

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.

A multi-lumen vascular access device is provided. A vascular access device (10) may include a first lumen (12), which may include a distal end (14) and a proximal end (16). The vascular access device may also include a second lumen (18), which may include a distal end (20) and a proximal end (22). The distal end of the second lumen may be located proximal to the distal end of the first lumen. The vascular access device may include an opening (24) or valve adjacent the distal end of the second lumen that provides access to the second lumen. The vascular access device may include a first connector (26), which may be disposed at the proximal end of the first lumen, and a second connector (28), which may be disposed at the proximal end of the second lumen.

Provided is, inter alia, a program with which it is possible to present information that indicates the position of a catheter in a vascular access device.　A program causes a computer to execute a process for: acquiring the positions of a first marker and a second marker in a vascular access device that is inserted into a living body; identifying the position of a catheter on the basis of the acquired positions of the first marker and the second marker and the positional relationship between the first marker and the catheter in the vascular access device; generating an image that indicates the identified position of the catheter; and outputting the generated image.

A sensor deployment system for a vascular access device includes: a primary lumen; a deployment connector configured to be connected to at least one of a luer connector; a needle-free connector; a catheter adapter, with the deployment connector attached to the primary lumen, an instrument with a sensor at least partially received within the primary lumen, with the instrument having a retracted position where a distal end of the instrument is positioned within the primary lumen or the deployment connector and an extended position where the distal end of the instrument extends beyond a distal end of the primary lumen and the deployment connector, and a communication device configured to transmit data from the sensor.

Disclosed herein is an ultrasound probe including a vibration transducer configured to vibrate skin or other tissue during a vascular access procedure. The vibration transducers of the first subset may cause ultrasonic vibration of a first patient interface surface of the probe to obtain an ultrasound image. The second subset of vibration transducers may cause a second patient interface surface of the probe to vibrate at a frequency different than the ultrasound frequency to mitigate pain associated with the vascular access procedure. The second patient interface surface may extend laterally away from the ultrasound probe toward the insertion site. The second patient interface surface may include a vascular access device.

A needle-guidance system is disclosed including single-patient equipment, multi-patient equipment, and an RFID reader-writer. The single-patient equipment can include a vascular access device (“VAD”) having a needle and an RFID tag. The RFID tag can be incorporated into the VAD or packaging for the VAD. The console can be configured to automatically start needle tracking for a clinician on an integrated display screen of the console after receiving RFID-tag data from the RFID tag and processing with a processor of the console instructions of needle-tracking software provided by memory of the console for the needle tracking. The RFID reader-writer can be configured to read the RFID-tag data from the RFID tag and write additional RFID-tag data to the RFID tag. The RFID reader-writer can be provided with the packaging for the VAD or the multi-patient equipment. A method of the needle-guidance system is also disclosed.

To provide an access port capable of reducing or preventing the progress of downgrowth, a method of manufacturing the same, and a vascular access device. It is also an object of the present invention to provide a catheter cuff and a catheter capable of doing so.SOLUTION: The access port 92 includes a vascular access unit 921 including a first surface 923 to be pierced with a needle and a second surface 924 from which the needle protrudes, and a peripheral portion 926 surrounding a periphery of the vascular access unit 921, the vascular access unit 921 contains an elastomer, and the peripheral portion 926 includes a porous body having communication holes. On the other hand, the catheter cuff includes a porous body having communication holes.SELECTED DRAWING: Figure 1A

Vascular access systems and methods for continuous monitoring. A vascular access system may include a vascular access device, a monitoring assembly, a securement dressing, a base unit, and one or more monitoring devices. The monitoring assembly may include an ultrasound probe that may be positioned over a catheter inserted into a patient's vasculature. The monitoring assembly may include a sensor array for sensing a parameter from a skin surface of a patient. The monitoring assembly may include a vascular probe assembly for sensing parameters from within the vasculature. Images from the ultrasound probe and / or parameters sensed by the sensor array and / or the vascular probe assembly may be processed to generate parameters representing status, events, or other information about the catheter. Display content including images and parameters may be provided to a monitoring device.

This utility model relates to a blood-drawing syringe and a system for performing blood draws. A blood-drawing syringe is provided herein that can be connected to a vascular access device for blood draws. The blood-drawing 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. The plunger assembly is movable within the syringe barrel to move the stopper between a starting position and a stopping position, wherein when the stopper is in the starting position, a first volume is provided in the chamber, and when the stopper is in the stopping position, a second volume is provided in the chamber. The syringe is configured to pre-set the plunger assembly within the syringe barrel before blood draws, wherein the stopper is positioned in the starting position to provide the first volume, which limits the maximum vacuum pressure within the syringe barrel during blood draws.

An IV device assembly may include a lumen that forms a fluidic channel within the IV device assembly. The lumen may be fluidly coupled to a vascular access device (VAD) coupler by 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 foldable cuff 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 foldable cuff and in the VAD coupler, a translation handle that translates the probe from a distal end of the VAD coupler, and a fixed loop formed around the lumen to maintain a position of the IV device assembly relative to the translation handle.

Catheter assemblies vascular access devices using such assemblies are disclosed. The catheter assembly comprises a catheter, an introducer needle, a needle hub and a catheter distal tip support element. The assembly includes an advancement assembly disposed between the needle hub and the distal tip of the introducer needle, the advancement assembly configured to advance the catheter distal tip support element a distance sufficient to advance the distal end of the elongate tubular portion to cover the distal tip of the needle in a hooded position.