1. A pole base comprising:
a body having an upper portion; and
a pole attachment device disposed on the upper portion of the body, wherein the pole attachment device is a separate plate having a plurality of slots wherein:
the separate plate is configured to removeably receive and secure a plurality of fastener assemblies such that each of the plurality of fastener assemblies may be received in one of the plurality of slots in a plurality of locations along a length of each slot;
a lower portion of each fastener assembly abuts a bottom surface of the separate plate;
reinforcing steel is welded directly to the separate plate; and the separate plate comprises a center hole and each of the plurality of slots are radially oriented such that a head or a nut from each of the plurality of fastener assemblies may pass through the center hole and a shaft of each of the plurality of fastener assemblies may pass through the plurality of slots trapping either the head or the nut under the separate plate.
2. The pole base of claim 1, wherein the body comprises concrete and the reinforcing steel is contained within the body when the separate plate is disposed on the upper portion of the body.
3. The pole base of claim 1, wherein each of the plurality of slots extends through an entire thickness of the separate plate without reaching any outer periphery of the separate plate.
4. The pole base of claim 1, wherein the upper portion of the body comprises a recess configured such that the separate plate is generally flush with an upper surface of the upper portion of the body when the separate plate is received within the recess.
5. The pole base of claim 1, wherein:
the recess comprises: a recessed area configured to correspond to a shape of the separate plate; a central cavity configured to correspond to the center hole; and a plurality of recessed channels configured to correspond to the plurality of slots; and
the body comprises one or more internal conduits that extend from the central cavity to an exit at a side or a bottom of the body.
6. The pole base of claim 1, further comprising a lifting device configured to attach to the separate plate, the lifting device comprising (a) a single channel with two or more holes to receive fastener assemblies that attach to two of the plurality of slots of the separate plate and (b) a lifting lug attached to an upper surface of the single channel.
7. The pole base of claim 6, wherein the two or more holes are disposed such that the fastener assemblies are respectively received in an opposite pair of the plurality of slots and the fastener assemblies, when moving in the plurality of slots, remain in the plurality of slots without entering the center hole.
8. The pole base of claim 1, wherein the separate plate is configured to receive a range of multiple sizes of fasteners.
9. The pole base of claim 8, further comprising an oversized washer configured to secure a connection between the separate plate and a fastener from a lower end of the range of multiple sizes of fasteners.
10. The pole base of claim 1, wherein the body comprises a plurality of anti-rotation features.
11. The pole base of claim 10, wherein the plurality of anti-rotation features comprises cavities in a lower portion of the body.
12. The pole base of claim 1, wherein the separate plate comprises one or more mounting projections configured to attach the reinforcing steel to the separate plate when the separate plate is assembled with the body.
13. The pole base of claim 1, wherein the lower portion of each fastener assembly is disposed below an upper surface of the upper portion of the body.
14. A pole base comprising:
a body having an upper portion; and
a pole attachment device disposed on the upper portion of the body, wherein the pole attachment device is a plate having a plurality of slots, the plate having a generally X-shaped outer perimeter and the plate being configured to removeably receive a range of multiple sizes of fastener assemblies such that each fastener assembly may be received in one of the plurality of slots in a plurality of locations along a length of each slot
wherein: the plate comprises a center hole with the plurality of slots oriented radially around the center hole such that a portion of each fastener assembly may pass through the center hole and a fastener shaft of each fastener assembly may pass through the plurality of slots trapping the portion of the fastener assembly under the plate; and a lower portion of each fastener assembly abuts a bottom surface of the plate.
15. The pole base of claim 14, wherein each of the plurality of slots extends through an entire thickness of the plate without reaching any outer periphery of the plate.
16. The pole base of claim 14, wherein the upper portion of the body comprises a recess configured such that the plate sits generally flush with the upper portion of the body when the plate is received in the recess.
17. The pole base of claim 14, wherein:
an opposite pair of the plurality of slots are each configured to receive one of two fasteners; and
the two fasteners, when moving in their respective slots, remain in their respective slots without entering the center hole.
18. The pole base of claim 14, further comprising an oversized washer configured to secure a connection between the plate and a fastener from a lower end of the range of multiple sizes of fastener assemblies.
19. The pole base of claim 14, wherein the portion of each fastener assembly is disposed below an upper surface of the upper portion of the body.
20. A pole base comprising:
a body having an upper portion;
a pole attachment device disposed on the upper portion of the body, wherein the pole attachment device is a plate having a plurality of slots extending through an entire thickness of the plate, each of the plurality of slots being configured to removeably receive at least one fastener assembly in a plurality of locations along a length of each slot; and
reinforcing steel welded directly to an underside of the plate such that the reinforcing steel is contained within the body when the plate is disposed on the upper portion of the body, wherein
the plate comprises a center hole and each of the plurality of slots are radially oriented such that a head or a nut from each fastener assembly may pass through the center hole and a shaft of each fastener assembly may pass through the plurality of slots trapping either the head or the nut under the plate.
21. The pole base of claim 20, wherein a perimeter of the plate is generally X-shaped.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A medical device for monitoring cardiac function in a patient, comprising:
a plurality of electrodes to deliver cardiac pacing therapy; and
a processor configured to determine a pacing threshold in response to initial delivery of the pacing therapy, determine whether there is a change in the pacing threshold during initial delivery of the pacing therapy, adjust a delivery parameter of the pacing therapy in response to determining the change in the pacing threshold during initial delivery of the pacing therapy, determine whether there is an increase in the pacing threshold during delivery of the adjusted pacing therapy, and determine hypokalemia in response to the increase in the pacing threshold during delivery of the adjusted pacing therapy being present.
2. The medical device of claim 1, wherein adjusting a delivery parameter of the pacing therapy comprises adjusting a pulse width and a rate of delivery of the pacing therapy.
3. The medical device of claim 2, wherein the pulse width is approximately 0.5 milliseconds and the rate of delivery is approximately once per day during initial deliver of the pacing therapy, and the pulse width is approximately 0.06 milliseconds and the rate of delivery is approximately once per hour during delivery of the adjusted pacing therapy.
4. The medical device of claim 1, wherein the determined increase in the pacing threshold during delivery of the adjusted pacing therapy is not equal to the determined change in the pacing threshold during initial delivery of the pacing therapy.
5. The medical device of claim 1, wherein the determined change in the pacing threshold during initial delivery of the pacing therapy comprises a one-step change.
6. The medical device of claim 1, wherein the determined increase in the pacing threshold during delivery of the adjusted pacing therapy comprise a four-step increase.
7. The medical device of claim 1, wherein the determined change in the pacing threshold during initial delivery of the pacing therapy comprises a one-step change and the determined increase in the pacing threshold during delivery of the adjusted pacing therapy comprises a four-step increase.
8. The medical device of claim 7, wherein the pulse width is approximately 0.5 milliseconds and the rate of delivery is approximately once per day during initial deliver of the pacing therapy, and the pulse width is approximately 0.06 milliseconds and the rate of delivery is approximately once per hour during delivery of the adjusted pacing therapy.
9. The medical device of claim 7, wherein adjusting a delivery parameter of the pacing therapy comprises adjusting a pulse width and a rate of delivery of the pacing therapy.
10. The medical device of claim 1, wherein the processor is further configured to determine whether there is a decrease in the pacing threshold during delivery of the adjusted pacing therapy, and determine hyperkalemia in response to the decrease in the pacing threshold during delivery of the adjusted pacing therapy being present.
11. The medical device of claim 1, wherein the processor is configured to generate an alert in response to the determined hypokalemia.
12. A method of monitoring cardiac function in a patient, comprising:
delivering cardiac pacing therapy;
determining a pacing threshold in response to initial delivery of the pacing therapy;
determining whether there is a change in the pacing threshold during initial delivery of the pacing therapy;
adjusting a delivery parameter of the pacing therapy in response to determining the change in the pacing threshold during initial delivery of the pacing therapy being present;
determining whether there is an increase in the pacing threshold during delivery of the adjusted pacing therapy; and
determining hypokalemia in response to the increase in the pacing threshold during delivery of the adjusted pacing therapy being present.
13. The method of claim 12, wherein adjusting a delivery parameter of the pacing therapy comprises adjusting a pulse width and a rate of delivery of the pacing therapy.
14. The method of claim 13, wherein the pulse width is approximately 0.5 milliseconds and the rate of delivery is approximately once per day during initial deliver of the pacing therapy, and the pulse width is approximately 0.06 milliseconds and the rate of delivery is approximately once per hour during delivery of the adjusted pacing therapy.
15. The method of claim 12, wherein the determined increase in the pacing threshold during delivery of the adjusted pacing therapy is not equal to the determined change in the pacing threshold during initial deliver of the pacing therapy.
16. The method of claim 12, wherein the change in the pacing threshold during initial deliver of the pacing therapy comprises a one-step change.
17. The method of claim 12, wherein the increase in the pacing threshold during delivery of the adjusted pacing therapy comprises a four-step increase.
18. The method of claim 12, wherein the change in the pacing threshold during initial deliver of the pacing therapy comprises a one-step change and the increase in the pacing threshold during delivery of the adjusted pacing therapy comprises a four-step increase.
19. The method of claim 18, wherein the pulse width is approximately 0.5 milliseconds and the rate of delivery is approximately once per day during initial deliver of the pacing therapy, and the pulse width is approximately 0.06 milliseconds and the rate of delivery is approximately once per hour during delivery of the adjusted pacing therapy.
20. The method of claim 18, wherein adjusting a delivery parameter of the pacing therapy comprises adjusting a pulse width and a rate of delivery of the pacing therapy.
21. The method of claim 12, further comprising generating an alert in response to the determined hypokalemia.
22. The method of claim 12, further comprising:
determining whether there is a change in the pacing threshold during initial delivery of the pacing therapy;
adjusting a delivery parameter of the pacing therapy in response to determining whether there is a first decrease;
determining whether there is a second decrease in the pacing threshold during delivery of the adjusted pacing therapy; and
determining hyperkalemia in response to the second decrease in the pacing threshold being present
23. A non-transitory computer-readable medium for storing a set of instructions for performing a method, the method comprising:
delivering cardiac pacing therapy;
determining a pacing threshold in response to initial delivery of the pacing therapy;
determining whether there is a change in the pacing threshold during initial delivery of the pacing therapy;
adjusting a delivery parameter of the pacing therapy in response to determining the change in the pacing threshold during initial delivery of the pacing therapy being present;
determining whether there is an increase in the pacing threshold during delivery of the adjusted pacing therapy; and
determining hypokalemia in response to the increase in the pacing threshold during delivery of the adjusted pacing therapy being present.