Implantation device for subcutaneous implantation of an object under the skin
View Patent ↗A device for inserting implantable objects beneath the skin of a patient includes a handle for grasping the device and a base connected to the handle. The base comprises a post, a cannula, and a flexible actuator positioned in an angled track. The cannula is positioned coaxially around and is longitudinally slidable over the post from an extended position, where an implantable object is retained in the cannula, to a retracted position, where the implantable object is released from the cannula. A flexible actuator positioned on an angled track in the base is slidably engaged with a boss on the cannula and is used to move the cannula from an extended position to a retracted position to release the implantable object from the cannula; the actuator flexes between a locked and an unlocked position. The angled track provides for control of the release of the implantable object.
1. A device for implanting at least one object beneath the skin of a patient comprising:
a handle comprising a distal end, a proximal end, and an angled track;
a base connected to the handle, the base comprising:
a post longitudinally fixed to the handle, the post extending from the distal end of the handle;
a hollow cannula positioned coaxially around and longitudinally slidable over the post from an extended position to a retracted position, the hollow cannula configured to receive at least one implantable object in the extended position and release the at least one implantable object in the retracted position; and
a flexible actuator slidably engaged to the cannula, the flexible actuator configured to move the cannula from the extended position to the retracted position, and flex between a locked and an unlocked position;
wherein:
the flexible actuator comprises a button, a boss channel, at least two guide posts, a guide, and a tab extending upwardly and non-parallel from the guide posts attached to the cannula; and
the boss channel is configured to engage the guide posts and permit a pulling or pushing force to be exerted on the cannula, for extension or retraction, when the flexible actuator tab is moved by moving the button along the angled track.
2. The device of claim 1 , wherein the flexible actuator in the distal position of the angled track is configured to engage a locking portion of the flexible actuator when the flexible actuator is pressed.
3. The device of claim 2 , wherein the flexible actuator is configured to release from the locked position when the flexible actuator is pressed.
4. The device of claim 1 , further comprising the one or more implantable objects.
5. The device of claim 1 , wherein the one or more implantable objects comprise one or more of either therapeutics, pharmaceuticals, or microencapsulated sensors.
6. The device of claim 1 , further comprising a cartridge removably mounted and parallel to a central bore of said cannula and a means for moving objects into the cannula for delivery upon retraction of said cannula.
7. The device of claim 1 , wherein the angled track comprises two opposing recessed track walls angled with respect to the post.
8. The device of claim 1 , wherein the angled track is linear or curvilinear.
9. The device of claim 1 , wherein the angled track comprises a stop at the distal portion configured to permit securing of the flexible actuator and lock the cannula in a loaded position.
10. The device of claim 1 , wherein the base comprises a bottom surface that is substantially planar and parallel to the cannula.
11. The device of claim 1 , wherein the cannula comprises a tip at the distal end comprising at least one beveled angle of between 30 and 45 degrees.
12. The device of claim 1 , wherein the cannula comprises a tip at the distal end comprising a sharp point of 27 degrees.
13. The device of claim 1 , wherein the cannula comprises a depth indicating marker.