Septum locating apparatus
First Claim
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1. Apparatus for locating a septum in a prosthetic device implanted in a body comprising:
- A. means mounted in the device in juxtaposition with the septum for emitting a characteristic energy field that extends exteriorly of the body and defines the location of the septum, said field-emitting means including at least one permanent magnet disposed adjacent the septum,B. a detector manipulable exteriorly of the body and having at least one component responsive to the energy field emitted from the body, said detector1. including at least one ferromagnetic part,2. including means for movably mounting the ferromagnetic parts so that when the detector is moved opposite the general site of the implanted device, the ferromagnetic parts assume characteristic dispositions that indicate the locations of the implanted magnets, and3. producing a characteristic indication when the detector is positioned directly opposite the field-emitting means, said indication thereby designating the precise location on the patient'"'"'s body surface under which the septum is implanted.
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Abstract
This invention relates to apparatus for accurately locating the septum through which the fluid reservoir of an implanted prosthetic device may be refilled subcutaneously.
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Citations
12 Claims
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1. Apparatus for locating a septum in a prosthetic device implanted in a body comprising:
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A. means mounted in the device in juxtaposition with the septum for emitting a characteristic energy field that extends exteriorly of the body and defines the location of the septum, said field-emitting means including at least one permanent magnet disposed adjacent the septum, B. a detector manipulable exteriorly of the body and having at least one component responsive to the energy field emitted from the body, said detector 1. including at least one ferromagnetic part, 2. including means for movably mounting the ferromagnetic parts so that when the detector is moved opposite the general site of the implanted device, the ferromagnetic parts assume characteristic dispositions that indicate the locations of the implanted magnets, and 3. producing a characteristic indication when the detector is positioned directly opposite the field-emitting means, said indication thereby designating the precise location on the patient'"'"'s body surface under which the septum is implanted. - View Dependent Claims (2, 3, 4, 5)
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6. Apparatus for locating the lateral position of a selected spot on a device implanted in the human body comprising
A. permanent magnet means mounted in the device in a selected juxtaposition with the selected spot said magnet means producing a magnetic field externally of the body which defines the location of the spot, and B. a detector manipulable exteriorly of the body, said detector including (1) a support, (2) at least one ferromagnetic component, and (3) means for movably positioning the components on the support, said components when in the presence of the magnetic field emanating from the magnet means assuming a null position when located directly opposite the magnet means such that movement from said null position in opposite directions from the null position causes the ferromagnetic components to move in opposite directions relative to the support means.
Specification