Apparatus and Method for Vascular Access
First Claim
1. A transcutaneous ultrasound vascular access guiding system comprising:
- an elongate body having a handle;
a guide on the elongate body configured to receive a vascular access device;
a single element ultrasound device on the elongate body configured to provide A-Mode imaging, Doppler and correlation-based blood velocity estimation;
a processor to process and correlate ultrasound information from the single element ultrasound device; and
a system for information output based on the output of the processor.
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Accused Products
Abstract
In an aspect, embodiments of the invention relate to the effective and accurate placement of intravascular devices such as central venous catheters, in particular such as peripherally inserted central catheters or PICC. One aspect of the present invention relates to vascular access. It describes devices and methods for imaging guided vascular access and more effective sterile packaging and handling of such devices. A second aspect of the present invention relates to the guidance, positioning and placement confirmation of intravascular devices without the help of X-ray imaging. A third aspect of the present invention relates to devices and methods for the skin securement of intravascular devices and post-placement verification of location of such devices. A forth aspect of the present invention relates to improvement of the workflow required for the placement of intravascular devices.
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Citations
64 Claims
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1. A transcutaneous ultrasound vascular access guiding system comprising:
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an elongate body having a handle; a guide on the elongate body configured to receive a vascular access device; a single element ultrasound device on the elongate body configured to provide A-Mode imaging, Doppler and correlation-based blood velocity estimation; a processor to process and correlate ultrasound information from the single element ultrasound device; and a system for information output based on the output of the processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of accessing a blood vessel comprising the steps of:
preparing sterile vascular access site on patient'"'"'s skin; sliding a vascular access device in the device guide, flush aligning with the tip of the imaging element, and locking in position; positioning the assembly on the patient'"'"'s skin on the sterile site without the use of ultrasound gel; orienting the assembly like a flashlight until the desired vessel can be seen on the scrolling chart display; advancing the endovascular element into the vasculature by sliding the guide element over the imaging device; and monitoring the advancement of the endovascular device towards the desired target by using at least one element from a list including A-mode imaging, Doppler flow information, and correlation-based blood flow information.
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12. An endovascular device comprising:
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an elongate body; an element on or in the elongate body configured to generate, emit or produce sound waves; and a device to control the generation, emission or production of sound waves from the element. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. An auscultation system comprising:
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one or more sound sensitive elements; a sound processor in communication with the one or more sound sensitive elements; and an information output device in communication with the sound processor. - View Dependent Claims (25)
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26. A guiding method for endovascular devices comprising the steps of:
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positioning one or more sound sensitive elements on a patient'"'"'s chest; inserting a sound emitting endovascular device into the patient'"'"'s vasculature; emitting sounds from the endovascular device; and detecting the sounds from the emitting step with the sound sensitive elements. - View Dependent Claims (27, 28, 29)
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30. A method to locate an endovascular device comprising an ultrasound sensor using one or more transcutaneous ultrasound systems, comprising the steps of:
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introducing an endovascular member containing an ultrasound sensor into the vasculature of a body; sending and receiving ultrasound waves in the vasculature using the ultrasound sensor; placing one or more transcutaneous ultrasound systems on the patient'"'"'s body; detecting the interference between the endovascular ultrasound device and the transcutaneous ultrasound systems using either the endovascular sensor or with any of the transcutaneous systems; and notifying the user when interference has been detected such the user becomes aware of the presence of the endovascular device in the field of view of the transcutaneous systems. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37)
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38. An endovascular device, comprising:
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an elongate body sized for insertion into the vasculature; a sensor on the distal end of the elongate body; and a structure on or in the elongate body to move its tip from an inner blood vessel wall while maintaining the blood stream flow when the endovascular device is in a blood vessel. - View Dependent Claims (39, 40, 41, 42, 43, 44, 45)
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46. An endovascular device, comprising:
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an elongate body sized for insertion into the vasculature; a sensor on the distal end of the elongate body; and a structure configured to align the elongate body tip or the sensor with the blood stream while maintaining the blood stream flow. - View Dependent Claims (47, 48, 49, 50, 51, 52, 53)
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54. A securement device for an endovascular member which provides electrical and optical sensor connectors and actuation elements to connect and control sensors and devices attached at the distal end of the endovascular members.
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55. A system for tracking clinical procedures and workflow, comprising:
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a workflow processor; an input interface; an output interface; a code reader; a communication component; and a database interface. - View Dependent Claims (56, 57, 58, 59, 60, 61, 62)
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63. A method for tracking clinical procedures and workflow, comprising:
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entering a time when a consult request is received; entering a time when a work step is started; and entering a time when a work step is finished. - View Dependent Claims (64)
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Specification