Patent application number | Description | Published |
20090054874 | MULTI-LUMEN CATHETER INCLUDING A LUMEN HAVING A VARIABLE CROSS SECTIONAL AREA - A multi-lumen catheter configured for insertion into the vasculature of a patient for fluid infusion into or fluid aspiration from the patient is disclosed. The multi-lumen catheter includes one or more cross sectionally variable lumens, wherein the cross sectional area of the lumen(s) may be selectively increased, particularly during fluid infusion, in order to enable relatively greater fluid flow rate therethrough. In one embodiment, the multi-lumen catheter includes a deformable first septum for providing an increased cross sectional area for a lumen under high flow rate pressurization, such as power injection. A deformable second septum also deforms to allow for first septum deformation and additionally provides an urging force to restore the first septum to an un-deformed state once lumen pressurization has ceased. In another embodiment, a bi-positional septum is used to selectively increase the cross sectional area of a lumen of the catheter during power injection. | 02-26-2009 |
20090093748 | LOOP-TIP CATHETER - A hemodialysis catheter, including an elongate body with an outer wall enclosing an arterial lumen and a venous lumen, and a method of making same. A loop extends from a distal end of the body and defines an enclosed opening. An arterial inlet in fluid communication with the arterial lumen, and a venous outlet in fluid communication with the venous lumen, are positioned on the loop. | 04-09-2009 |
20090204074 | METHODS OF POWER INJECTING A FLUID THROUGH AN ACCESS PORT - Methods of power injecting a fluid through an access port are described. One method includes implanting in a patient an access port suitable for passing fluid therethrough at a rate of at least about 1 milliliter per second, the access port including a body defining a cavity, a septum, and an outlet in fluid communication with the cavity, and flowing a fluid through an infusion set into the access port at a rate of at least about 1 milliliter per second, the infusion set including a needle in fluid communication with a tubing, the tubing in fluid communication with a connector, each of the needle, tubing, and connector constructed to have a burst pressure of at least about 100 psi. | 08-13-2009 |
20090216216 | METHODS OF PERFORMING A POWER INJECTION PROCEDURE - Methods of performing a power injection procedure are described. One method includes taking an x-ray of a subcutaneously implanted access port in a patient to determine whether the access port includes a radiographic feature indicating that the access port is suitable for flowing fluid at a rate of at least about 1 milliliter per second through the access port, identifying the indicating radiographic feature on the x-ray, and flowing a fluid through the access port at a rate of at least about 1 milliliter per second. | 08-27-2009 |
20100010445 | CONNECTOR SYSTEM FOR A PROXIMALLY TRIMMABLE CATHETER - A catheter connector system for a subcutaneously placed catheter. The catheter connector system permits proximal trimming of the placed catheter, which is a procedure that provides numerous advantages over traditional methods of trimming catheter distal ends prior to implantation. The catheter connector system can be configured for a single lumen catheter or a multiple lumen catheter. The catheter connector system facilitates precise positioning of both distal and proximal ends of a catheter, providing enhanced functionability and patient comfort. | 01-14-2010 |
20110098653 | CONNECTOR SYSTEM FOR A PROXIMALLY TRIMMABLE CATHETER - A catheter connector system for a subcutaneously placed catheter and method of attaching a catheter to extracorporeal medical equipment. The catheter connector system and method enables proximal trimming of the placed catheter and facilitates precise positioning of both distal and proximal ends of a catheter. The method includes sliding a boot and dilator combination over a portion of a catheter extending from a venipuncture site until a distal end of the boot is positioned in the venipuncture site, removing the dilator from the boot, and trimming a portion of the catheter extending from a proximal end of the boot. A bifurcation assembly may be attached to the proximal end of the boot following trimming of the catheter. | 04-28-2011 |
20110190712 | SACRIFICIAL CATHETER - A sacrificial catheter assembly and method of use for placing a functional catheter within the body of a patient, such as into the patient's vasculature, is disclosed. In one embodiment, the sacrificial catheter assembly comprises a sacrificial catheter including an elongate body that defines a longitudinally extending lumen. A stylet is removably received within the lumen of the sacrificial catheter such that the catheter and stylet can be advanced together to a target destination within the body of the patient. The sacrificial catheter is configured so as to then be proximally slid over the stylet to remove the sacrificial catheter from the body while the stylet remains in place at the target destination. A functional catheter can then be distally slid over the stylet to place the functional catheter at the target destination. The stylet can then be removed from the body of the patient. | 08-04-2011 |
20110276015 | ACCESS PORT IDENTIFICATION SYSTEMS AND METHODS - An access port for subcutaneous implantation is disclosed. Such an access port may comprise a body for capturing a septum for repeatedly inserting a needle therethrough into a cavity defined within the body. Further, the access port may include at least one feature structured and configured for identification of the access port subsequent to subcutaneous implantation. Methods of identifying a subcutaneously implanted access port are also disclosed. For example, a subcutaneously implanted access port may be provided and at least one feature of the subcutaneously implanted access port may be perceived. Further, the subcutaneously implanted access port may be identified in response to perceiving the at least one feature. | 11-10-2011 |
20110282188 | INSERTION GUIDANCE SYSTEM FOR NEEDLES AND MEDICAL COMPONENTS - A guidance system for assisting with the insertion of a needle or other medical component into the body of a patient is disclosed. The guidance system utilizes ultrasound imaging or other suitable imaging technology. In one embodiment, the guidance system comprises an imaging device including a probe for producing an image of an internal body portion target, such as a vessel. One or more sensors are included with the probe. The sensors sense a detectable characteristic related to the needle, such as a magnetic field of a magnet included with the needle. The system includes a processor that uses data relating to the detectable characteristic sensed by the sensors to determine a position and/or orientation of the needle in three spatial dimensions. The system includes a display for depicting the position and/or orientation of the needle together with the image of the target. | 11-17-2011 |
20110311337 | ACCESS PORT IDENTIFICATION SYSTEMS AND METHODS - An access port for subcutaneous implantation is disclosed. Such an access port may comprise a body for capturing a septum for repeatedly inserting a needle therethrough into a cavity defined within the body. Further, the access port may include at least one feature structured and configured for identification of the access port subsequent to subcutaneous implantation. Methods of identifying a subcutaneously implanted access port are also disclosed. For example, a subcutaneously implanted access port may be provided and at least one feature of the subcutaneously implanted access port may be perceived. Further, the subcutaneously implanted access port may be identified in response to perceiving the at least one feature. In one embodiment, an identification feature is engraved or otherwise defined by the access port, so as to be visible after implantation via x-ray imaging technology. | 12-22-2011 |
20120018073 | SYSTEMS AND METHODS FOR RADIOGRAPHICALLY IDENTIFYING AN ACCESS PORT - An access port for subcutaneous implantation is disclosed. Such an access port may comprise a body for capturing a septum for repeatedly inserting a needle therethrough into a cavity defined within the body. Further, the access port may include at least one feature structured and configured for identification of the access port subsequent to subcutaneous implantation. Methods of identifying a subcutaneously implanted access port are also disclosed. For example, a subcutaneously implanted access port may be provided and at least one feature of the subcutaneously implanted access port may be perceived. Further, the subcutaneously implanted access port may be identified in response to perceiving the at least one feature. In one embodiment, an identification feature is included on a molded insert that is incorporated into the access port so as to be visible after implantation via x-ray imaging technology. | 01-26-2012 |
20120046562 | RECONFIRMATION OF ECG-ASSISTED CATHETER TIP PLACEMENT - Reconfirmation of the position of a catheter intravascularly placed with the assistance of ECG signals of the patient is disclosed, thus assisting in determination of subsequent catheter displacement within the patient vasculature. In one embodiment a method for reconfirming a position of an indwelling medical device within a body of a patient comprises first placing the medical device within the body of the patient using ECG signals of the patient. A first ECG signal profile relating to an initial position of the indwelling medical device after initial placement of the medical device is stored. A second ECG signal profile relating to the position of the indwelling medical device at a time subsequent to initial placement of the medical device is then acquired. The first ECG signal profile is compared with the second ECG signal profile to determine whether displacement of the indwelling medical device has occurred. | 02-23-2012 |
20120065587 | SYSTEMS FOR ISOLATION OF A NEEDLE-BASED INFUSION SET - A safety needle assembly of an infusion set for infusing fluids into a subcutaneously implanted access port is disclosed. The needle assembly is configured to prevent fluid/vapor escape therefrom so as to reduce or prevent fluid exposure to a clinician using the needle assembly. In one embodiment, the needle assembly comprises a handle portion including a needle extending therefrom, the needle defining a lumen for passage of a fluid therethrough. The needle assembly also includes a safety assembly defining a needle hole through which the needle initially extends. The safety assembly is selectively and axially slidable along the needle in order to shield a distal tip of the needle and prevent user contact therewith. A fluid isolation component is included in the safety assembly for isolating fluid escape from the needle to prevent exposure to a clinician. | 03-15-2012 |
20120226244 | Septum Feature for Identification of an Access Port - An access port for providing subcutaneous access to a patient, and a method of identifying a subcutaneously implanted access port. The access port includes a body capturing a septum that covers a cavity defined by the body, and a pattern of protrusions extending from an outer surface of the septum away from the cavity, the pattern of protrusions detectable through palpation to indentify the access port as a power-injectable port. | 09-06-2012 |
20120259296 | Systems and Methods for Identifying an Access Port - An access port for subcutaneous implantation is disclosed. Such an access port may comprise a body for capturing a septum for repeatedly inserting a needle therethrough into a cavity defined within the body. Further, the access port may include at least one feature structured and configured for identification of the access port subsequent to subcutaneous implantation. Methods of identifying a subcutaneously implanted access port are also disclosed. For example, a subcutaneously implanted access port may be provided and at least one feature of the subcutaneously implanted access port may be perceived. Further, the subcutaneously implanted access port may be identified in response to perceiving the at least one feature. In one embodiment, an identification feature is engraved or otherwise defined by the access port, so as to be visible after implantation via x-ray imaging technology. | 10-11-2012 |
20130030413 | Sacrificial Catheter - A sacrificial catheter assembly and method of use for placing a functional catheter within the body of a patient, such as into the patient's vasculature, is disclosed. In one embodiment, the sacrificial catheter assembly comprises a sacrificial catheter including an elongate body that defines a longitudinally extending lumen. A stylet is removably received within the lumen of the sacrificial catheter such that the catheter and stylet can be advanced together to a target destination within the body of the patient. The sacrificial catheter is configured so as to then be proximally slid over the stylet to remove the sacrificial catheter from the body while the stylet remains in place at the target destination. A functional catheter can then be distally slid over the stylet to place the functional catheter at the target destination. The stylet can then be removed from the body of the patient. | 01-31-2013 |
20130090614 | Corporeal Drainage System - A corporeal drainage system and a method of draining fluid from a bodily cavity. The corporeal drainage system includes a connection tube and a fluid receptacle in fluid communication with the connection tube. The fluid receptacle creates a negative pressure in the system by transitioning from a collapsed configuration to an expanded configuration. The system may include an activation member to initiate transitioning of the fluid receptacle. | 04-11-2013 |
20130165773 | Access Port Identification Systems and Methods - An access port for subcutaneous implantation is disclosed. Such an access port may comprise a body for capturing a septum for repeatedly inserting a needle therethrough into a cavity defined within the body. Further, the access port may include at least one feature structured and configured for identification of the access port subsequent to subcutaneous implantation. Methods of identifying a subcutaneously implanted access port are also disclosed. For example, a subcutaneously implanted access port may be provided and at least one feature of the subcutaneously implanted access port may be perceived. Further, the subcutaneously implanted access port may be identified in response to perceiving the at least one feature. | 06-27-2013 |
20130172733 | Systems and Methods for Radiographically Identifying an Access Port - An access port for subcutaneous implantation is disclosed. Such an access port may comprise a body for capturing a septum for repeatedly inserting a needle therethrough into a cavity defined within the body. Further, the access port may include at least one feature structured and configured for identification of the access port subsequent to subcutaneous implantation. Methods of identifying a subcutaneously implanted access port are also disclosed. For example, a subcutaneously implanted access port may be provided and at least one feature of the subcutaneously implanted access port may be perceived. Further, the subcutaneously implanted access port may be identified in response to perceiving the at least one feature. In one embodiment, an identification feature is included on an insert that is incorporated into the access port so as to be visible after implantation via x-ray imaging technology. | 07-04-2013 |
20130225990 | Access Port Identification Systems and Methods - An access port for subcutaneous implantation is disclosed. Such an access port may comprise a body for capturing a septum for repeatedly inserting a needle therethrough into a cavity defined within the body. Further, the access port may include at least one feature structured and configured for identification of the access port subsequent to subcutaneous implantation. Methods of identifying a subcutaneously implanted access port are also disclosed. For example, a subcutaneously implanted access port may be provided and at least one feature of the subcutaneously implanted access port may be perceived. Further, the subcutaneously implanted access port may be identified in response to perceiving the at least one feature. | 08-29-2013 |
20130225991 | Access Port Identification Systems and Methods - A power-injectable access port includes a housing defining an internal cavity and including a plurality of suture apertures, a needle-penetrable septum captured by the housing enabling needle access to the internal cavity, a stem having a lumen in fluid communication with the internal cavity, the stem configured for coupling to a catheter, and a radiopaque identification feature observable via imaging technology subsequent to subcutaneous implantation of the port, the feature indicating that the port is suitable for power injection. | 08-29-2013 |
20130226106 | Access Port Identification Systems and Methods - An access port for subcutaneous implantation is disclosed. Such an access port may comprise a body for capturing a septum for repeatedly inserting a needle therethrough into a cavity defined within the body. Further, the access port may include at least one feature structured and configured for identification of the access port subsequent to subcutaneous implantation. Methods of identifying a subcutaneously implanted access port are also disclosed. For example, a subcutaneously implanted access port may be provided and at least one feature of the subcutaneously implanted access port may be perceived. Further, the subcutaneously implanted access port may be identified in response to perceiving the at least one feature. | 08-29-2013 |
20130245574 | Assemblies for Identifying a Power Injectable Access Port - An assembly for identifying a power injectable vascular access port, including a vascular access port and an identification feature. The port is structured for power injection and includes a housing and a septum together defining a reservoir. A radiographic feature incorporated into the port is perceivable via x-ray following subcutaneous implantation, the radiographic feature identifying the port as suitable for flowing fluid at a fluid flow rate of at least 1 mL/sec therethrough. A structural feature of the port is perceivable via palpation following subcutaneous implantation, the structural feature identifying the port as suitable for accommodating a pressure within the reservoir of at least 35 psi. The identification feature is separated from the port and confirms that the port is both suitable for flowing fluid at a rate of at least 1 mL/sec therethrough and suitable for accommodating a pressure within the reservoir of at least 35 psi. | 09-19-2013 |
20130280346 | Infusates with Enhanced pH Stability Under Ethylene Oxide Sterilization - Normal saline and other infusate solutions for infusion into the body of a patient during medical treatment are disclosed. In particular, infusates are disclosed that are formulated to resist changes to the pH of the solution when subjected to sterilization procedures that employ ethylene oxide gas. In one embodiment, a buffered infusate suitable for disposal in a syringe or other container is disclosed. The syringe is sterilizable using ethylene oxide. The buffered infusate comprises an aqueous solution that is disposed in the syringe and is suitable for infusion into a body of a patient. A buffer component is added to the aqueous solution to form a buffered solution. The buffer component is configured to resist a change in the pH of the buffered solution upon exposure of the buffered solution to the ethylene oxide during sterilization of the syringe. | 10-24-2013 |
20130338494 | Implantable Access Port Including A Sandwiched Radiopaque Insert - An access port for subcutaneous implantation is disclosed. The access port may include a body for capturing a septum for repeatedly inserting a needle therethrough into a cavity defined within the body. The access port may further include at least one feature structured and configured for identification of the access port subsequent to subcutaneous implantation. Methods of identifying a subcutaneously implanted access port are also disclosed. For example, a subcutaneously implanted access port may be provided and at least one feature of the subcutaneously implanted access port may be perceived. The subcutaneously implanted access port may be identified in response to perceiving the at least one feature. In one embodiment, an identification feature is included on a molded insert that is sandwiched between base and cap portions of the access port so as to be visible after implantation via x-ray imaging technology. | 12-19-2013 |
20140081219 | Access Port Identification Systems and Methods - An access port for subcutaneous implantation is disclosed. Such an access port may comprise a body for capturing a septum for repeatedly inserting a needle therethrough into a cavity defined within the body. Further, the access port may include at least one feature structured and configured for identification of the access port subsequent to subcutaneous implantation. Methods of identifying a subcutaneously implanted access port are also disclosed. For example, a subcutaneously implanted access port may be provided and at least one feature of the subcutaneously implanted access port may be perceived. Further, the subcutaneously implanted access port may be identified in response to perceiving the at least one feature. | 03-20-2014 |
20140100534 | Septum Feature for Identification of an Access Port - A power-injectable access port, and a method of identifying a subcutaneously implanted power-injectable access port. The power-injectable access port includes a body capturing a septum that covers a cavity defined by the body, and a pattern of protrusions extending from an outer surface of the septum away from the cavity, the pattern of protrusions detectable through palpation to identify the access port as a power-injectable access port. | 04-10-2014 |
20140163356 | Insertion Guidance System for Needles and Medical Components - A guidance system for assisting with the insertion of a needle or other medical component into the body of a patient is disclosed. The guidance system utilizes ultrasound imaging or other suitable imaging technology. In one embodiment, the guidance system comprises an imaging device including a probe for producing an image of an internal body portion target, such as a vessel. One or more sensors are included with the probe. The sensors sense a detectable characteristic related to the needle, such as a magnetic field of a magnet included with the needle. The system includes a processor that uses data relating to the detectable characteristic sensed by the sensors to determine a position and/or orientation of the needle in three spatial dimensions. The system includes a display for depicting the position and/or orientation of the needle together with the image of the target. | 06-12-2014 |
20140275922 | Sacrificial Catheter - A sacrificial catheter assembly and method of use for placing a functional catheter within the body of a patient, such as into the patient's vasculature, is disclosed. In one embodiment, the sacrificial catheter assembly comprises a sacrificial catheter including an elongate body that defines a longitudinally extending lumen. A stylet is removably received within the lumen of the sacrificial catheter such that the catheter and stylet can be advanced together to a target destination within the body of the patient. The sacrificial catheter is configured so as to then be proximally slid over the stylet to remove the sacrificial catheter from the body while the stylet remains in place at the target destination. A functional catheter can then be distally slid over the stylet to place the functional catheter at the target destination. The stylet can then be removed from the body of the patient. | 09-18-2014 |
20140330118 | Assemblies for Identifying a Power Injectable Access Port - An assembly for identifying a power injectable vascular access port, including a vascular access port and an identification feature. The port is structured for power injection and includes a housing and a septum together defining a reservoir. A radiographic feature incorporated into the port is perceivable via x-ray following subcutaneous implantation, the radiographic feature identifying the port as suitable for flowing fluid at a fluid flow rate of at least 1 mL/sec therethrough. A structural feature of the port is perceivable via palpation following subcutaneous implantation, the structural feature identifying the port as suitable for accommodating a pressure within the reservoir of at least 35 psi. The identification feature is separated from the port and confirms that the port is both suitable for flowing fluid at a rate of at least 1 mL/sec therethrough and suitable for accommodating a pressure within the reservoir of at least 35 psi. | 11-06-2014 |
20140330220 | Multi-Lumen Catheter with Separate Distal Tips - A multi-lumen catheter including a generally cylindrical body enclosing a first and second lumen separated by a generally planar septum. A first and second tip section extend from a distal end of the body. The first and second tip section may each include a generally planar surface. The second tip section may include a first segment extending from the distal end of the catheter body to a transition segment and a second segment extending from the transition segment to a distal end of the second tip section. | 11-06-2014 |
20140350396 | Assemblies for Identifying a Power Injectable Access Port - A power-injectable access port suitable for injecting contrast media therethrough at a rate of at least 1 milliliter per second. The access port includes a housing, a septum, a reservoir, and an outlet stem in fluid communication with the reservoir. The power-injectable access port is structured for accommodating a pressure developed within the reservoir of at least 35 psi. The septum may include a radiopaque material forming a selected pattern when an x-ray is taken through the septum. The pattern may identify the access port as capable of accommodating injection of contrast media at a rate of at least 1 milliliter per second and/or as capable of accommodating a pressure developed within the reservoir of at least 35 psi. The pattern may identify the location of the septum following implantation of the power-injectable access port. | 11-27-2014 |
20140358095 | Corporeal Drainage System - A corporeal drainage system and a method of draining fluid from a bodily cavity. The corporeal drainage system includes a connection tube and a fluid receptacle in fluid communication with the connection tube. The fluid receptacle creates a negative pressure in the system by transitioning from a collapsed configuration to an expanded configuration. The system may include an activation member to initiate transitioning of the fluid receptacle. | 12-04-2014 |
20150025465 | Sacrificial Catheter - A sacrificial catheter assembly and method of use for placing a functional catheter within the body of a patient, such as into the patient's vasculature, is disclosed. In one embodiment, the sacrificial catheter assembly comprises a sacrificial catheter including an elongate body that defines a longitudinally extending lumen. A stylet is removably received within the lumen of the sacrificial catheter such that the catheter and stylet can be advanced together to a target destination within the body of the patient. The sacrificial catheter is configured so as to then be proximally slid over the stylet to remove the sacrificial catheter from the body while the stylet remains in place at the target destination. A functional catheter can then be distally slid over the stylet to place the functional catheter at the target destination. The stylet can then be removed from the body of the patient. | 01-22-2015 |
20150080716 | Reconfirmation of ECG-Assisted Catheter Tip Placement - A catheter includes a proximal portion designed for residing externally of a patient vasculature and a distal portion having a distal tip designed for placement in a desired position within the patient vasculature. A storage component is embedded in a portion of the catheter, the storage component including a radio-frequency identification (RFID) chip. The RFID chip includes non-volatile memory that is programmable by a RFID encoder. The storage component includes data related to the placement of the distal tip of the catheter in the desired position within the patient vasculature. | 03-19-2015 |