Detection of implanted injection port
First Claim
1. An apparatus for detecting an injection port having a membrane and subcutaneously implanted in a patient, comprising:
- a magnetic device for emitting a local magnetic field, and a magnetic detector adapted for detecting the local magnetic field emitted by the magnetic device, wherein the magnetic device or magnetic detector is designed for subcutaneously implantation in the patient at the implanted injection port, and the magnetic detector or magnetic device is movable externally along the patient'"'"'s body to establish an injection position at the patient'"'"'s skin in front of the implanted injection port where the local magnetic field emitted by the magnetic device is detected by the magnetic detector, whereby an injection needle can be placed in the established injection position, in order to insert the injection needle through the patient'"'"'s skin directly into the injection port substantially in the centre thereof.
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Accused Products
Abstract
An apparatus for detecting an injection port subcutaneously implanted in a patient includes a magnetic device, such as a permanent magnet or a solenoid, that emits a local magnetic field, and a magnetic detector, preferably including at least one Hall element, that detects the local magnetic field. The magnetic device is designed to be subcutaneously implanted in the patient at the implanted injection port, and the magnetic detector is movable externally along the patient'"'"'s body to establish an injection position at the patient'"'"'s skin in front of the implanted injection port where the local magnetic field emitted by the magnetic device is detected by the magnetic detector. As a result, an injection needle can be placed in the established injection position, in order to insert the injection needle through the patient'"'"'s skin directly into the injection port substantially in the centre thereof.
64 Citations
22 Claims
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1. An apparatus for detecting an injection port having a membrane and subcutaneously implanted in a patient, comprising:
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a magnetic device for emitting a local magnetic field, and a magnetic detector adapted for detecting the local magnetic field emitted by the magnetic device, wherein the magnetic device or magnetic detector is designed for subcutaneously implantation in the patient at the implanted injection port, and the magnetic detector or magnetic device is movable externally along the patient'"'"'s body to establish an injection position at the patient'"'"'s skin in front of the implanted injection port where the local magnetic field emitted by the magnetic device is detected by the magnetic detector, whereby an injection needle can be placed in the established injection position, in order to insert the injection needle through the patient'"'"'s skin directly into the injection port substantially in the centre thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method of detecting an injection port subcutaneously implanted in a patient, comprising:
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providing a magnetic device for emitting a local magnetic field through the patient'"'"'s skins, providing a magnetic detector for detecting the local magnetic field emitted by the magnetic device, subcutaneously implanting the magnetic device or magnetic detector in the patient at the implanted injection port, moving the magnetic detector or magnetic device externally along the patient'"'"'s body, and establishing an injection position at the patient'"'"'s skin in front of the implanted injection port where the local magnetic field emitted by the magnetic device is detected by the magnetic detector. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A surgical method for treating a patient having a disease comprising the steps of:
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insufflating the patient'"'"'s abdomen with gas;
implanting a hydraulically operable implant designed for treating reflux disease, urinary incontinence, impotence, anal incontinence or obesity in the abdomen by using surgical instruments through the trocars;
subcutaneously implanting an injection port for supplying hydraulic fluid for the operation of the implant and a magnetic device at the injection port for emitting a local magnetic field through the injection port and the adjacent skin portion of the patient;
post-operatively moving an exterior magnetic detector along the patient'"'"'s body to a position in which the local magnetic field emitted by the implanted magnetic device is detected by the magnetic detector;
bringing an injection needle to the position in which the local magnetic field is detected; and
moving the injection needle to penetrate the patient'"'"'s skin into the injection port for supplying hydraulic fluid to or withdrawing hydraulic fluid from the injection port.
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22. A surgical method for treating a patient having a disease comprising the steps of:
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insufflating the patient'"'"'s abdomen with gas;
implanting a hydraulically operable implant designed for treating reflux disease, urinary incontinence, impotence, anal incontinence or obesity in the abdomen by using surgical instruments through the trocars;
subcutaneously implanting an injection port for supplying hydraulic fluid for the operation of the implant and a magnetic detector at the injection port;
post-operatively moving an exterior magnetic device emitting a local magnetic field along the patient'"'"'s body to a position in which the local magnetic field emitted by the exterior magnetic device is detected by the implanted magnetic detector;
bringing an injection needle to the position in which the local magnetic field is detected; and
moving the injection needle to penetrate the patient'"'"'s skin into the injection port for supplying hydraulic fluid to or withdrawing hydraulic fluid from the injection port.
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Specification