Access system
First Claim
1. An access system for a device, comprising:
- a plate member defining at least a first aperture, the plate member including a first side and a second side, wherein the first side includes a semispherical surface that is configured to be positioned against a skin surface of a patient;
a hub defining at least a second aperture and being slideably coupled to the second side of the plate member by a guide passing through the second aperture of the hub;
a lock mechanism configured to lock the hub relative to the plate member on the guide;
a removable probe that is inserted through the hub and the plate member; and
a magnetically trackable sensor;
wherein, when the semispherical surface is positioned against the skin surface of the patient, the hub is operable to be slid relative to the plate member along the guide until the sensor indicates that the probe is positioned at a target site within the patient.
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Accused Products
Abstract
The invention provides systems and methods for providing access to a target site. Example systems may include a needle, a grid to guide the needle, a plate with an aperture, a member coupled to the plate and including a semispherical surface, and a hub slideably coupled to the plate by a guide. The system may also include a needle coupled to the hub, the needle including a magnetically trackable sensor positioned in a tip of the needle. The semispherical surface can be positioned against skin of a body and the hub slid relative to the plate along the guide to insert the needle through the aperture in the plate into the body until the tip reaches a target site. The hub can be locked by a lock mechanism when the tip of the needle reaches the target site, and an action performed on the target site through the needle.
300 Citations
23 Claims
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1. An access system for a device, comprising:
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a plate member defining at least a first aperture, the plate member including a first side and a second side, wherein the first side includes a semispherical surface that is configured to be positioned against a skin surface of a patient; a hub defining at least a second aperture and being slideably coupled to the second side of the plate member by a guide passing through the second aperture of the hub; a lock mechanism configured to lock the hub relative to the plate member on the guide; a removable probe that is inserted through the hub and the plate member; and a magnetically trackable sensor; wherein, when the semispherical surface is positioned against the skin surface of the patient, the hub is operable to be slid relative to the plate member along the guide until the sensor indicates that the probe is positioned at a target site within the patient. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 21, 22, 23)
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9. An access system for an ablation device, comprising:
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a plate defining at least a first aperture; a member coupled to the plate and defining a semispherical surface configured to be positioned against a skin surface of a patient; a hub slideably coupled to the plate by a rod passing through the hub aperture of the hub; a lock mechanism configured to lock the hub on the rod relative to the plate; and a needle coupled to the hub, the needle including a magnetically trackable coil positioned in a tip of the needle; wherein, upon the semispherical surface of the member being positioned against the skin surface of the patient, the hub is slid relative to the plate along the rod to insert the needle through the first aperture of the plate into the skin surface of the patient until the tip reaches a target site, wherein the hub is locked by the lock mechanism when the tip of the needle reaches the target site, and wherein an ablation agent is delivered to the target site through the needle, or a tissue sample is obtained. - View Dependent Claims (10, 11, 12)
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13. A method of utilizing an access device to provide access to a target site in a body, the access device including a stabilizing plate having at least a first aperture therethrough, the stabilizing plate including a button having a semispherical surface, the access device further including a needle coupled to a hub, the needle including a trackable sensor at its tip and the hub being slideably connected to the stabilizing plate by a guide passing through a hub aperture of the hub, and the access system further including a lock mechanism configured to lock the hub on the guide relative to the stabilizing plate, the method comprising the acts of:
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positioning the semispherical surface of the button against the body; sliding the hub, along the guide that passes through the hub aperture, relative to the stabilizing plate to move the needle through the first aperture of the stabilizing plate, thereby introducing the needle into the body; magnetically tracking the tip of the needle as it moves through the body using the trackable sensor; locking the hub on the guide relative to the stabilizing plate when the needle reaches the target site; and introducing an ablation agent to the target site through the needle, or obtaining a tissue sample at the target site. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification