Percutaneous magnetic gastrostomy
First Claim
1. A system for placing a medical device into the body of a patient, comprising:
- a magnet sensing device operable to localize a position of a magnet relative to the magnet sensing device and identify an anatomical location to pass a needle into the body, the magnet sensing device having a plurality of sensors to detect the magnetic field of the magnet, and the magnet sensing device further having an output to provide an indication of the magnet'"'"'s position; and
a light emitting element coupled to the magnet sensing device, the light emitting element configured to provide visible light to the body, and having sufficient brightness to penetrate tissue in the body such that when placed at the identified anatomical location, the light is visible from a location inside of the body.
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Accused Products
Abstract
A system and method places a percutaneous gastrostomy device into a body cavity of a patient using a magnetic gastrostomy tube and a medical detection sensing device. The magnetic gastrostomy tube has a ferromagnetic element attached to its distal end. Various embodiments allow a needle to be passed from the magnetic detection sensing device outside the patient toward a magnetic gastrostomy tube inside the patient or, alternatively, from the magnetic gastrostomy tube inside the patient toward the magnetic detection sensing device outside the patient. After a needle makes a hole between the outside of the patient and the body cavity, a medical wire may be passed through the hole, and the medical wire can then be used to place the percutaneous gastrostomy device.
1175 Citations
18 Claims
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1. A system for placing a medical device into the body of a patient, comprising:
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a magnet sensing device operable to localize a position of a magnet relative to the magnet sensing device and identify an anatomical location to pass a needle into the body, the magnet sensing device having a plurality of sensors to detect the magnetic field of the magnet, and the magnet sensing device further having an output to provide an indication of the magnet'"'"'s position; and a light emitting element coupled to the magnet sensing device, the light emitting element configured to provide visible light to the body, and having sufficient brightness to penetrate tissue in the body such that when placed at the identified anatomical location, the light is visible from a location inside of the body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for passing a medical device into a body of a patient, the method comprising:
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placing a medical endoscope into the body; passing a linear medical element via a channel on the endoscope, the linear medical element having a magnet attached to its distal end; operating a magnet sensing device, and a visible light emitting element coupled to the magnet sensing device, at an external anatomical location to determine a location of the magnet relative to the magnet sensing device; and passing a needle into the body in a direction and to a depth indicated by the magnet sensing device corresponding to the determined location of the magnet. - View Dependent Claims (12, 13, 14, 15)
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16. A method comprising:
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placing a medical scope into a body; passing a linear medical element via a channel on the medical scope, the linear medical element having a magnet attached to its distal end, and the linear medical element having a channel configured to pass a needle; positioning the magnet, via the linear medical element, at the first location inside the body; identifying the first location inside the body via a magnet sensing device outside the body, the magnet sensing device including a visible light emitting element shining light through tissue of the body; positioning the magnet, via the linear medical element, at the second location inside the body; and passing the needle from the second location inside the body to a location outside the body. - View Dependent Claims (17, 18)
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Specification