Methods and apparatus for deploying and implantable biosensor
First Claim
1. An implantation device for delivering a biosensor to an implantation site in a body, comprising:
- an elongate catheter comprising a recess configured to carry the biosensor while the catheter is guided to the implantation site;
wherein the recess comprises a disposed indentation etched or otherwise formed on only one side of the catheter.
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Accused Products
Abstract
An implantation device for delivering a biosensor to an implantation site in a patient'"'"'s body comprises an elongate catheter equipped with a distally located cavity sized to house a biosensor. Once the distal end of the catheter is positioned adjacent the implantation site, the biosensor is released through an opening from the cavity into the site. A removable cover, such as a thin adhesive film, may be used to retain the biosensor in the cavity, while the catheter is guided through the body to the implantation site. The implantation device may include an actuator for displacing the biosensor from the cavity into the implantation site. By way of one example, the actuator may be a piston inserted through a lumen of the catheter.
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Citations
31 Claims
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1. An implantation device for delivering a biosensor to an implantation site in a body, comprising:
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an elongate catheter comprising a recess configured to carry the biosensor while the catheter is guided to the implantation site;
wherein the recess comprises a disposed indentation etched or otherwise formed on only one side of the catheter.
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2. A device for delivering a biosensor to an implantation site in a body, comprising:
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an elongate catheter comprising a recess configured to carry the biosensor while the catheter is guided to the implantation site; and
a retaining element configured to retain the biosensor in the recess;
wherein the retaining element comprises a retractable cover member inserted through a distal opening of the catheter. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16)
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15. An implantation device for delivering a biosensor to an implantation site in a body, comprising:
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an elongate catheter comprising a recess configured to carry the biosensor while the catheter is guided to the implantation site;
and an actuator disposed in, or adjacent to, the recess, the actuator configured to eject the biosensor from the recess;
wherein the actuator comprises a protrusion located in, or adjacent to, the recess, the protrusion positioned to displace biosensor from the recess.
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17. An implantation device for delivering a biosensor to an implantation site in a body, comprising:
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an elongate catheter having a recess formed in a distal end, the recess configured to carry the biosensor without significantly increasing the profile of the catheter distal end;
a retaining element configured to retain the biosensor in the recess; and
an actuator disposed in, or adjacent to, the recess, the actuator configured to eject the biosensor from the recess;
wherein the retaining element comprises a retractable cover member extending out of a distal opening of the catheter. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
wherein the retractable cover member comprises a thin membrane at least partially covering the cavity. -
19. The implantation device of claim 17, wherein the retractable cover member comprises a retractable filament inserted through a lumen of the catheter adjacent the recess, the filament extending out of a distal opening of the catheter.
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20. The implantation device of claim 19,
wherein the actuator comprises a protrusion located in, or adjacent to, the recess, and wherein a distal portion of the filament has a relatively thick profile, such that the protrusion is displaced into the recess by the distal portion as the filament is retracted through the lumen. -
21. The implantation device of claim 19,
wherein the actuator comprises a protrusion located adjacent to a wall of the recess, and wherein a distal portion of the filament has a relatively thick profile, such that the protrusion deflects the filament against the wall as the filament is retracted through the lumen, causing the biosensor to be displaced from the recess. -
22. The implantation device of claim 17, further comprising a clamping mechanism adapted to secure the retaining element against the catheter, while the catheter is guided to the implantation site.
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23. The implantation device of claim 22, wherein the clamping mechanism comprises a sleeve circumferentially attached to the catheter.
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24. The implantation device of claim 17, wherein the retractable cover member comprises a retractable sheath.
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25. A method for delivering a biosensor to an implantation site in a body, comprising:
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introducing a catheter into the body, the catheter having a recessed area that houses a biosensor, a distal opening, and a retaining element that is inserted through the distal opening, the retaining element being configured to retain the biosensor in the recessed area;
advancing the catheter until the recessed area is positioned at the implantation site; and
retracting the retaining element so that the biosensor may move freely from the recessed area into the implantation site. - View Dependent Claims (26, 27, 28, 29)
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30. A method for delivering a biosensor to an implantation site in a body, comprising:
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introducing a catheter into the body, the catheter having a recessed area that houses a biosensor, a distal opening, a retaining element that is inserted through the distal opening and is configured to retain the biosensor in the recessed area, and an actuator configured to displace the biosensor from the recess;
advancing the catheter until the recess is positioned at the implantation site;
retracting the cover member to allow passage of the biosensor from the recess; and
ejecting the biosensor from the recess into the implantation site with the actuator. - View Dependent Claims (31)
inserting a stent graft in the implantation site.
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Specification