Access needle pressure sensor device and method of use
First Claim
1. A device for accessing one or more locations of a subject, said device comprising:
- a needle having a distal end and a proximal end; and
a pressure sensor in communication with said needle and configured for sensing pressure in said one or more locations,the pressure sensor in further communication with a processor configured to read sensed information from the pressure sensor to determine pressure frequencies and to be able to differentiate sensed information on a basis of different sensed pressure frequencies.
4 Assignments
0 Petitions
Accused Products
Abstract
A tool and method of positioning and delivering medical devices and therapeutics within the pericardial space, as well as other body part or space. A needle is inserted into the chest through a sub-xiphoid puncture, and the pressure within the needle is monitored manometrically or otherwise sensed as the needle is advanced towards the pericardial space. By reading the pressure within the needle while it is advanced, the clinician is able to know that he or she is avoiding insertion of it into organs or spaces not intended to be the target location. In addition the retractable sharp edge allows the operator to access the space and cut tissue but do so safely by retracting the sharp edge.
268 Citations
70 Claims
-
1. A device for accessing one or more locations of a subject, said device comprising:
-
a needle having a distal end and a proximal end; and a pressure sensor in communication with said needle and configured for sensing pressure in said one or more locations, the pressure sensor in further communication with a processor configured to read sensed information from the pressure sensor to determine pressure frequencies and to be able to differentiate sensed information on a basis of different sensed pressure frequencies. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
-
-
33. A method for accessing one or more locations of a patient, said method comprising:
-
inserting a needle having a pressure sensor associated with the needle, through the thorax and the middle mediastinum; sensing pressure in said one or more locations; and reading sensed information from the pressure sensor to determine pressure frequencies and differentiating sensed information on a basis of different sensed pressure frequencies. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
-
-
52. A system for sensing the pressure in one or more locations of a subject, said system comprising:
-
an elongated member and having a distal end and a proximal end; a pressure sensor in communication with said elongated member for sensing pressure in said one or more locations; and a processor configured to read sensed information from the pressure sensor to determine pressure frequencies and to be able to differentiate sensed information on a basis of different sensed pressure frequencies. - View Dependent Claims (53, 54, 55, 56, 57, 58, 59, 60)
-
-
61. A method for sensing the pressure in one or more locations of a patient, said method comprising:
-
inserting an elongated member through the thorax and the middle mediastinum; and sensing pressure frequencies in said one or more locations and differentiating a location of the needle as between the one or more locations by associating a specific sensed frequency with a particular location of the one or more locations. - View Dependent Claims (62, 63, 64, 65, 66, 67, 68, 69, 70)
-
Specification