Insertion device and method for inserting a medical device
An insertion device includes an insertion component that inserts a medical device into body tissue of a user. The insertion device also includes an insertion component retractor, a cap, a guide sleeve having a ramp, an insertion sleeve and an elastic member. For inserting the medical device, the cap, the insertion component retractor and the insertion sleeve are movable relative to the guide sleeve from a distal position to a proximal position. The ramp twists the insertion component retractor relative to the guide sleeve and the insertion sleeve when the cap is moved from its distal position to its proximal position. The cap is movable from its proximal position to its distal position and the insertion component retractor is thereby moved from its proximal position to its distal position. An associated method of using the insertion device is also disclosed.
1. An insertion device, comprising:
i) a medical device;
ii) an insertion component configured for inserting the medical device into body tissue of a user;
iii) an insertion component retractor;
iv) a cap;
v) a guide sleeve comprising a ramp;
vi) an insertion sleeve; and
vii) an elastic member;
wherein, for inserting the medical device, the cap, the insertion component retractor and the insertion sleeve are movable relative to the guide sleeve from a distal position to a proximal position, wherein the ramp is configured to twist the insertion component retractor relative to the guide sleeve and the insertion sleeve when the cap is moved from its distal position to its proximal position, wherein the cap is movable from its proximal position to its distal position and the insertion component retractor is thereby moved from its proximal position to its distal position.
2. The insertion device according to claim 1 , wherein the movement of the cap together with the insertion component retractor and the insertion sleeve from its distal position to its proximal position is initiable by an action of the user.
3. The insertion device according to claim 1 , wherein the movement of the cap together with the insertion component retractor from its proximal position to its distal position is initiable by relieving the action of the user.
4. The insertion device according to claim 1 , wherein before reaching the proximal position of the insertion component retractor, the ramp contacts a latch of the insertion component retractor and the ramp twists the latch and thereby twists the insertion component retractor.
5. The insertion device according to claim 4 , wherein the insertion sleeve comprises a groove configured for guiding the latch, wherein the groove comprises at least one edge.
6. The insertion device according to claim 5 , wherein the ramp is configured for forcing the insertion component retractor to twist by guiding the latch to move within the groove.
7. The insertion device according to claim 1 , wherein the elastic member is configured for driving the insertion component retractor from its proximal position to its distal position, wherein the elastic member comprises a spring connected to the insertion component retractor, wherein the spring is pre-tensioned and is actuatable by releasing a force applied to the cap.
8. The insertion device according to claim 7 , wherein the spring is configured to drive the insertion component retractor from its proximal position to its distal position and thereby drive the cap from its proximal position to its distal position.
9. The insertion device according to claim 1 , wherein the cap when in the proximal position aligns with a proximal end of the guide sleeve.
10. The insertion device according to claim 1 , further comprising a safety lock configured for preventing re-movement of the insertion component retractor after being moved to its distal position.
11. The insertion device according to claim 1 , further comprising an analyte sensor for detecting at least one analyte in a body fluid of a user.
12. The insertion device according to claim 11 , wherein the analyte sensor has two-electrodes.
13. A method for inserting a medical device into a body tissue of a user using an insertion device according to claim 1 , comprising:
a) inserting the medical device into the body tissue of the user by applying a force on the cap of the insertion device, thereby moving the insertion component, the cap, the insertion component retractor and the insertion sleeve relative to the guide sleeve from a distal position to a proximal position, and twisting the insertion component retractor relative to the guide sleeve and the insertion sleeve; and
b) retracting the insertion component by relieving the force applied to the cap thereby moving the cap from its proximal position to its distal position, thereby moving the insertion component retractor from its proximal position to its distal position.
14. The method according to claim 13 , further comprising bringing the proximal end of the guide sleeve in contact with a skin site of a user and applying pressure to the skin site of the user with the sensor patch.
15. The method according to claim 13 , wherein the movement of the cap together with the insertion component retractor and the insertion sleeve from its distal position to its proximal position is initiated by action of the user.
16. The method according to claim 13 , wherein the movement of the cap together with the insertion component retractor from its proximal position to its distal position is initiated by relieving action of the user.