Lancets for bodily fluid sampling supplied on a tape
View Patent ↗A supply of lancets for a multi-use lancing device are carried by a tape and sequentially brought from a storage position to an activating position by advancing the tape around a bend. The lancets are non-circular in cross-section along their longitudinal lengths, and in their activating position they extend from the tape such that their sharp tips are available for lancing tissue. The carrying tape can be arranged in reel-to-reel format in a housing having a lancing opening. The lancets can be integral with the tape and activated to move the lancet through the lancing opening by moving the tape along its tape path or by translating a dedicated service loop of the tape. The lancets can also be independent from the tape and activated through the lancing opening by a separate lancing actuator. A test media can be included on the carrying tape and the housing can contain a sensor to yield an integrated lancing and testing device.
1. A multi-use lancing device comprising:
a housing having a lancet opening and containing a supply reel, a storage reel, and a take-up reel, wherein the supply reel, the storage reel, and the take-up reel are each configured to rotate independently of the housing;
an elongated flexible carrying tape configured for reel-to-reel transfer from the supply reel to the storage reel;
a plurality of lancets sequentially positioned along the carrying tape and each having a lancet length and a distal portion defining a sharp tip; and
a sterile removable cover over the lancets in the supply reel,
wherein rotation of the take-up reel removes the cover from the lancets as the lancets are advanced from the supply reel to the storage reel.
2. The device of claim 1 wherein a substantial portion of the lancet length is high-aspect ratio in cross section.
3. The device of claim 1 wherein the lancets are composed of a hardened stainless steel or a shape memory alloy.
4. The device of claim 1 further comprising a cover application reel configured to place the cover on the lancets being advanced onto the storage reel.
5. The device of claim 1 further comprising a plurality of test media carried on the tape, at least one test media associated with each of the plurality of lancets.
6. The device of claim 1 wherein the lancets include a capillary groove for conveying a bodily fluid sample to an associated test media.
7. A multi-use lancing device comprising:
a housing having a lancet opening and containing a supply reel and a storage reel;
an elongated flexible carrying tape configured for reel-to-reel transfer from the supply reel to the storage reel;
a plurality of lancets sequentially positioned along the carrying tape and each having a lancet length and a distal portion defining a sharp tip;
a sterile removable cover over the lancets in the supply reel;
a take-up reel for removing the cover from the lancets as the lancets are advanced from the supply reel to the storage reel; and
a cover application reel for placing the cover on the lancets being advanced onto the storage reel.
8. A multi-use lancing device comprising:
a housing having a lancet opening and containing a supply reel and a storage reel;
an elongated flexible carrying tape configured for reel-to-reel transfer from the supply reel to the storage reel;
a plurality of lancets sequentially positioned along the carrying tape and each having a lancet length and a distal portion defining a sharp tip;
a sterile removable cover over the lancets in the supply reel; and
a take-up reel for removing the cover from the lancets as the lancets are advanced from the supply reel to the storage reel, the take-up reel is rotatable independent of the housing; and
a cover application reel for placing the cover over the lancets, the cover application reel is rotatable independent of the housing.
9. The device of claim 8 wherein the plurality of lancets and the carrying tape are formed from a single piece of tape stock.
10. The device of claim 8 wherein the plurality of lancets are integral with the carrying tape.