DEVICE FOR LOCATING A STRUCTURE INSIDE A BODY
First Claim
1. A device for locating a structure inside a body by means of a hollow needle, comprising:
- a sensor for providing a pressure-measurement signal which is representative of the pressure prevailing in a liquid which is present in a reservoir which can be connected to said hollow needle;
a converter for converting the pressure-measurement signal provided by the sensor into at least one converted signal which is suitable for further processing; and
a display device designed to emit at least one visual display signal in response to the at least one converted signal;
wherein the display device forms part of a system which, irrespective of the position of the head of the user, is designed to display the at least one visual display signal in the range of vision of the user, the range of vision of said user being defined as an area which, on the one hand, is fixed with respect to the head of said user and, on the other hand, can be perceived by the eyes of said user of the system.
2 Assignments
0 Petitions
Accused Products
Abstract
A device for locating a structure (15) inside a body (10) includes a hollow needle (20), a liquid-filled reservoir (31) which is sealingly closed off at one end by means of a displaceable piston (32) and at the other end is in communication with the hollow needle; a sensor (40) for providing a pressure-measurement signal which is representative of the pressure prevailing in the liquid; a converter (50) for converting the pressure-measurement signal provided by the sensor into a converted signal suitable for further processing; and a display device (90) designed to emit at least one visual display signal which is a function of the converted signal. The device further includes a frame (200, 300) which can be worn on the head by a user and can be fixed on the head of the user, the visual display signal being in each case displayed in the range of vision of the user who is wearing the unit on his or her head in every position of the head of the user.
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Citations
16 Claims
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1. A device for locating a structure inside a body by means of a hollow needle, comprising:
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a sensor for providing a pressure-measurement signal which is representative of the pressure prevailing in a liquid which is present in a reservoir which can be connected to said hollow needle; a converter for converting the pressure-measurement signal provided by the sensor into at least one converted signal which is suitable for further processing; and a display device designed to emit at least one visual display signal in response to the at least one converted signal; wherein the display device forms part of a system which, irrespective of the position of the head of the user, is designed to display the at least one visual display signal in the range of vision of the user, the range of vision of said user being defined as an area which, on the one hand, is fixed with respect to the head of said user and, on the other hand, can be perceived by the eyes of said user of the system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification