Tokyo, Japan

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Devices and methods obtain and use endovascular electrograms (or electrocardiograms/ECGs) in a number of clinical applications and settings. In one embodiment, a method for locating an indwelling medical device within a vasculature of a patient includes identifying an endovascular ECG waveform complex from an endovascular ECG signal associated with the indwelling medical device, then calculating an absolute value of the energy of the endovascular ECG waveform complex over a predetermined segment thereof. A position of the medical device within the vasculature is then determined by observation of the absolute value of the energy of the predetermined segment of the endovascular ECG waveform complex.


Patent
Access Inc. | Date: 2017-02-08

A medical device comprising a subcutaneous access port having an access port body and at least one needle having a removable needle tip and a needle shaft defining a needle lumen; the at least one needle housed within the access port body, the at least one needle extendable and retractable relative to the access port body; and a needle shift mechanism operable such that the at least one needle is extendable from and retractable into the access port body at a plurality of positions of the access port body.


Patent
Access Inc. | Date: 2016-01-15

A new device and method are introduced herein to facilitate vascular access in general and the placement of central venous access devices in particular. In one embodiment, the device consists of the following components: a wireless ultrasound imaging handheld scanner, a Bluetooth ECG (electrocardiography) data acquisition module with patient ECG cable and sterile adaptor, and a mobile medical application running on a mobile platform (device), e.g., a tablet, smartphone or smart watch. Ultrasound imaging and/or ECG-based catheter guidance provided by the device disclosed herein can be used to independently or simultaneously visualize the catheter in the vasculature and/or guide its placement at the desired location. In another embodiment of the present invention, ultrasound imaging of the blood vessel targeted for vascular access can be used for assessing the blood vessel size prior to cannulating the blood vessel, for guiding an access needle into the targeted blood vessel, and for visualizing the catheter in the vasculature after the introduction of the catheter. In another embodiment of the present invention, ECG-based navigation of an intravascular catheter can be used for tracking such intravascular catheter in the vasculature and positioning such intravascular catheter at a desired location. In one aspect of the present invention, the ultrasound imaging handheld scanner contains all the electronics required to acquire and process ultrasound images and to transfer them wirelessly to a mobile platform device, e.g., a tablet or a smartphone. In another aspect of the present invention, the ECG data acquisition module contains all the electronics required to acquire and process tracking and positioning information for ECG-based catheter guidance and to transfer such information wirelessly to a mobile platform device, e.g., a tablet or a smartphone. In another aspect of the present invention, algorithms are introduced for processing and synchronization of ultrasound images and ECG signals. In another aspect of the present invention, user interfaces for the handheld ultrasound imaging scanner, the ECG data acquisition module, and the mobile medical application running on a mobile platform are introduced in order to simplify the use of ultrasound imaging and/or ECG-based guidance for catheter placement on mobile platforms. In another aspect of the present invention, a new vascular access method is introduced using simultaneous ultrasound imaging and ECG-based catheter guidance. According to the present invention, using ultrasound imaging of a catheter in the vasculature simultaneously with detecting ECG signals at the tip of the catheter provide accurate and reliable catheter location information in adult and pediatric population for most of patients conditions and clinical environments.


Patent
Access Inc. | Date: 2016-05-20

A method of locating a tip of a central venous catheter (CVC) having a distal and proximal pair of electrodes disposed within the superior vena cava, right atrium, and/or right ventricle. The method includes obtaining a distal and proximal electrical signal from the distal and proximal pair of electrodes and using those signals to generate a distal and proximal P wave, respectively. A deflection value is determined for each of the P waves. A ratio of the deflection values is then used to determine a location of the tip of the CVC. Optionally, the CVC may include a reference pair of electrodes disposed within the superior vena cava from which a reference deflection value may be obtained. A ratio of one of the other deflection values to the reference deflection value may be used to determine the location of the tip of the CVC.


A medical system, comprising an implantable access port including an implantable access port body and at least one implantable access port needle; wherein the at least one needle is concealable inside the access port body in a concealed position and is exposable outside the access port body in an exposed position; wherein the at least one needle is arranged within the access port body to penetrate outwardly through skin of a subject from within the subject when the access port is implanted in the subject; a transfer device coupled to the at least one needle of the access port, the transfer device configured to transfer a fluid to and/or from the access port; and wherein the transfer device is configured to form a closed system with the access port, wherein the transfer device includes a fluid flow passage configured to transfer the fluid to and/or from the access port.


Patent
Access Inc. | Date: 2016-04-25

A grate access floor panel comprising a support frame and a plurality of vanes supported by the frame, each of the plurality of vanes having an upstream end and a downstream end with respect to a direction of airflow across the plurality of vanes and faces that extend between the upstream and downstream ends, wherein at least some of the vanes have openings that extend through the faces thereof and have angled tips.


The present invention provides an apparatus for manufacturing a diagnosis kit, comprising: a molding member supplying unit; an upper molding unit for receiving an upper molding member from the molding member supplying unit and then molding the upper molding member into a predetermined upper diagnosis kit body; a lower molding unit for receiving a lower molding member from the molding member supplying unit and then molding the lower molding member into a predetermined lower diagnosis kit body, and inserting a diagnostic strip into the molded lower diagnosis kit body; a bonding unit for receiving an upper molding member and a lower molding member and then bonding the upper molding member and the lower molding member; and a cutting unit for cutting the bonded upper diagnosis kit body and lower diagnosis kit body into a predetermined diagnosis kit size.


Patent
Access Inc. | Date: 2016-09-15

A method for positioning an endovascular device in or near the heart using electrocardiogram (ECG) signals. The method includes receiving an endovascular ECG signal including a plurality of waveforms, processing the endovascular ECG signal to calculate a P-wave amplitude and a spectral power for each predetermined time period, determining a maximum P-wave amplitude and an associated maximum spectral power, associating the maximum P-wave amplitude and the maximum spectral power with a predetermined location in or near the heart, calculating a location based on a ratio of the P-wave amplitude to the maximum P-wave amplitude and a ratio of the spectral power to the maximum spectral power, and displaying the location to a user.


Patent
Access Inc. | Date: 2016-09-16

An access port, wherein the access port may include a body having an exterior surface and a chamber defined therein, a bore defined in the body providing fluid communication between the chamber and the exterior surface, a needle in fluid communication with the chamber, a passage defined in the body providing communication between the chamber and the exterior surface, a seal secured within the passage, and an actuator in communication with the needle, configured to move the needle relative to the passage or move the passage relative to the needle.


Patent
Access Inc. | Date: 2016-04-12

Provided is a diagnostic apparatus. The diagnostic apparatus includes a microfluidic chip including first and second measurement parts for respectively measuring an amount of hemoglobin and an active degree of an enzyme within a blood sample. The second measurement part of the microfluidic chip analyzes the active degree of the enzyme within the blood sample using voltammetry.

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