System for recharging medical instruments

• US 8,295,940 B2
• Filed: 12/17/2004
• Issued: 10/23/2012
• Est. Priority Date: 12/17/2004
• Status: Active Grant

• Current Assignee: Depuy Products Incorporated (Johnson & Johnson)
• Original Assignee: Depuy Products Incorporated (Johnson & Johnson)
• Inventors: Sherman, Jason T.
• Primary Examiner(s): Layno, Carl H
• Assistant Examiner(s): Patel, Natasha
• Application Number:
  US11/016,290
• Publication Number:
  US 20060131193A1
• Time in Patent Office: 2,867 Days
• Field of Search: 607/2, 607/46, 607/5, 607/61, 607/60, 607/35, 206/210, 206/363, 206/370
• US Class Current: 607/61
• CPC Class Codes: A61B 2017/00734 battery operated
• CPC Class Codes: H02J 2310/23 The load being a medical device, a medical implant, or a life supporting device
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/40 using two or more transmitting or receiving devices H02J50/50 takes precedence
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction
• CPC Class Codes: H02J 7/0044 specially adapted for holding portable devices containing batteries H02J7/0045 takes precedence

Abstract

A system for recharging medical instruments comprises a medical instrument tray defining a plurality of recesses therein for receiving and storing a corresponding plurality of medical instruments. At least one of the medical instruments includes a secondary coil coupled to a rechargeable voltage source. The medical instrument tray includes a primary coil positioned at least partially about one or more of the recesses configured to receive and store one of the medical instruments. The primary coil couples to the secondary coil to charge the rechargeable voltage source when the corresponding medical instrument is received in the recess. A storage container is provided for receiving and storing one or more such medical instrument trays. The storage container includes an electrical routing system for routing voltage from an external voltage source to the primary coils.

Claims

1. A system for recharging medical instruments, the system comprising:

a medical instrument tray defining a plurality of recesses therein for receiving and storing a corresponding plurality of medical instruments, at least one of the plurality of medical instruments including a secondary coil coupled to a rechargeable voltage source, the medical instrument tray including a primary coil positioned at least partially about one of the plurality of recesses configured to receive and store the at least one of the plurality of medical instruments, the primary coil coupling to the secondary coil to charge the rechargeable voltage source when the at least one of the plurality of medical instruments is received in the one of the plurality of recesses, and

a storage container to removably receive and store the medical instrument tray, the storage container including an electrical routing system for routing voltage from an external voltage source to the primary coil.

2. The system of claim 1 wherein the at least one of the plurality of medical instruments has an upright position and a prostrate position,

and wherein the one of the plurality of recesses is configured to receive and store the medical instrument in the upright position.

3. The system of claim 1 wherein the at least one of the plurality of medical instruments has an upright position and a prostrate position,

and wherein the one of the plurality of recesses is configured to receive and store the medical instrument in the prostrate position.

4. The system of claim 1 wherein the medical instrument tray comprises:

a bottom tray member defining the one of the plurality of recesses therein,

a first coil member extending at least partially about the one of the plurality of recesses, and

a top tray member including a second coil member, the top tray member configured to at least partially cover the bottom tray member so that the second coil member is electrically connected to the first coil member and so that the first and second coil members cooperate to form the primary coil.

5. The system of claim 4 wherein the secondary coil is positioned relative to the at least one of the plurality of medical instruments so that the first coil member extends about a first portion of the secondary coil and the second coil member extends about a second portion of the secondary coil when the at least one of the plurality of medical instruments is received within the one of the plurality of recesses and the top tray member covers the bottom tray member.

6. The system of claim 1 wherein the primary coil circumscribes at least a portion of the one of the plurality of recesses, the one of the plurality of recesses configured so that the primary coil circumscribes the secondary coil when the at least one of the plurality of medical instruments is received within the one of the plurality of recesses.

7. The system of claim 1 wherein the external voltage source is an AC voltage source.

8. The system of claim 7 wherein the at least one of the plurality of medical instruments includes an AC-to-DC conversion circuit interposed between the secondary coil and the rechargeable voltage source, the AC-to-DC conversion circuit converting AC voltage induced in the secondary coil by the first coil to a DC voltage, the DC voltage recharging the rechargeable voltage source.

9. The system of claim 8 wherein the at least one of the plurality of medical instruments includes a charge activation circuit having a switch positioned between the AC-to-DC conversion circuit and the rechargeable voltage source, and a comparator circuit, the comparator circuit responsive to an output voltage of the rechargeable voltage source to control the switch to connect the AC-to-DC conversion circuit to the rechargeable voltage source when the output voltage of the rechargeable voltage source is below a reference voltage, and to control the switch to disconnect the AC-to-DC conversion circuit from the rechargeable voltage source when the output voltage of the rechargeable voltage source is above the reference voltage.

10. The system of claim 9 further including a visual indication device providing a visual indication of the operational state of the switch.

11. The system of claim 1 wherein the at least one of the plurality of medical instruments includes a visual indication device providing a visual indication distinguishing a recharging state of the rechargeable voltage source from a non-recharging state of the rechargeable voltage source.

12. A system for recharging medical instruments, the system comprising:

a plurality of medical instrument trays each defining at least one recess for receiving and storing a medical instrument having a secondary coil coupled to a rechargeable voltage source, each of the plurality of medical instrument trays including a primary coil positioned at least partially about the at least one recess, the primary coil of each of the plurality of medical instrument trays coupling to the secondary coil of a corresponding one of the medical instruments to charge the rechargeable voltage source when the corresponding one of the medical instruments is received in the at least one recess,

a storage container to removably receive and store the plurality of medical instrument trays, and

an electrical routing system for routing voltage from an external voltage source to the primary coil of each of the plurality of medical instrument trays.

13. The system of claim 12 wherein the medical instrument stored in any of the plurality of medical instrument trays has an upright position and a prostrate position,

and wherein the at least one recess of any one or more of the plurality of medical instrument trays is configured to receive and store the corresponding medical instrument in the upright position.

14. The system of claim 12 wherein the medical instrument stored in any of the plurality of medical instrument trays has an upright position and a prostrate position,

and wherein the at least one recess of any one or more of the plurality of medical instrument trays is configured to receive and store the corresponding medical instrument in the prostrate position.

15. The system of claim 12 wherein the storage container is configured to receive and store the plurality of medical instrument trays therein with the plurality of medical instrument trays stacked one atop another.

16. The system of claim 15 wherein the electrical routing system includes at least one electrical connector mounted to each of the plurality of medical instrument trays and electrically connected to the corresponding primary coils, the at least one electrical connector mounted to each of the plurality of medical instrument trays configured to electrically connect to at least one corresponding electrical connector mounted to a supporting medical instrument tray and to electrically connect to at least a corresponding electrical connector mounted to a medical instrument tray supported thereby.

17. The system of claim 16 wherein the storage container includes a closable lid,

and wherein the electrical routing system further includes an interlock allowing the electrical routing system to route voltage from the external voltage source to the primary coil of each of the plurality of medical instrument trays only when the closable lid is closed.

18. The system of claim 15 wherein the electrical routing system includes:

a pair of electrically conductive posts mounted within the storage container, and

a corresponding pair of electrically conductive channels defined through each of the plurality of medical instrument trays and electrically connected to the corresponding primary coils, the electrical routing system routing voltage from the external voltage source to the primary coil of any one of the plurality of medical instrument trays when the pair of electrically conductive posts are received within the electrically conductive channels of the any one of the plurality of medical instrument trays.

19. The system of claim 12 wherein the external voltage source is an AC voltage source.

20. The system of claim 19 wherein the electrical routing system includes an AC voltage processing circuit receiving an AC voltage from the AC voltage source and routing a resulting processed AC voltage to the primary coil of each of the plurality of medical instrument trays.

21. The system of claim 19 wherein the medical instrument includes an AC-to-DC conversion circuit interposed between the secondary coil and the rechargeable voltage source, the AC-to-DC conversion circuit converting AC voltage induced in the secondary coil by the primary coil to a DC voltage, the DC voltage recharging the rechargeable voltage source.

22. The system of claim 21 wherein the medical instrument includes a charge activation circuit having a switch positioned between the AC-to-DC conversion circuit and the rechargeable voltage source, and a comparator circuit, the comparator circuit responsive to an output voltage of the rechargeable voltage source to control the switch to connect the AC-to-DC conversion circuit to the rechargeable voltage source when the output voltage of the rechargeable voltage source is below a reference voltage, and to control the switch to disconnect the AC-to-DC conversion circuit from the rechargeable voltage source when the output voltage of the rechargeable voltage source is above the reference voltage.

23. The system of claim 22 further including a visual indication device providing a visual indication of the operational state of the switch.

24. The system of claim 12 wherein the medical instrument includes a visual indication device providing a visual indication distinguishing a recharging state of the rechargeable voltage source from a non-recharging state of the rechargeable voltage source.