1. A control device configured to control a plurality of inverter-driven pumps disposed between a heat source device and an air-conditioner, the control device comprising:
a perceiving unit perceiving a cumulative operation time of each of the pumps and a rotation speed distribution during operation of each of the pumps;
a degradation degree derivation unit deriving a degradation degree of each of the pumps based on the cumulative operation time of each of the pumps and the rotation speed distribution during operation of each of the pumps; and
a determining unit determining the pump to be next operatedstopped based on the degradation degree of each of the pumps,
the degradation degree derivation unit further deriving an increased amount of the degradation degree of each of the pumps in a predetermined period, and
the determining unit determining the pump to be next operatedstopped based on the increased amount of the degradation degree of each of the pumps in the predetermined period.
2. The control device according to claim 1, further comprising
a calculation unit calculating an operation time of each of the pumps in a low-speed rotation region and an operation time of each of the pumps in a high-speed rotation region based on the rotation speed distribution during operation of each of the pumps,
the degradation degree derivation unit deriving the degradation degree of each of the pumps based on the cumulative operation time of each of the pumps, the operation time of each of the pumps in the low-speed rotation region and the operation time of each of the pumps in the high-speed rotation region.
3. The control device according to claim 2, wherein
the perceiving unit further perceives a number of startstop cycles of each of the pumps, and
the degradation degree derivation unit further derives the degradation degree of each of the pumps further based on the number of startstop cycles of each of the pumps.
4. The control device according to claim 3, further comprising
a storage unit storing weighting values respectively corresponding to the cumulative operation time of the pumps, the operation time of the pumps in the low-speed rotation region and the operation time of the pumps in the high-speed rotation region, and the number of startstop cycles of the pumps,
the degradation degree derivation unit derives the degradation degree of each of the pumps further based on the weighting values respectively corresponding to the cumulative operation time of the pumps, the operation time of the pumps in the low-speed rotation region and the operation time of the pumps in the high-speed rotation region, and the number of startstop cycles of the pumps.
5. (canceled)
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 needle assembly for delivery of a treatment substance to a site within the body, the needle assembly comprising:
a delivery needle defining a delivery lumen and having a delivery needle wall, a proximal end, and a distal end, the delivery needle wall having one or more cut patterns to increase the flexibility of the delivery needle;
a plurality of internal needles, each internal needle defining an internal needle lumen and having an internal needle wall, a proximal end, and a distal end, the plurality of needles configured to transition between a contracted position and an expanded position; and
a treatment substance source in fluid communication with the internal needle lumens of the plurality of internal needles;
wherein each of the plurality of internal needles is configured to extend in a distal direction and flare outward from the distal end of the delivery needle when in the expanded position; and
wherein the plurality of internal needles are housed within the delivery lumen when in the contracted position.
2. The needle assembly of claim 1, wherein an internal surface of the delivery needle wall is coated with a substance configured to reduce or eliminate the likelihood that the internal needles will stick to or catch on the delivery needle wall when the internal needles are transitioned between the contracted position and the expanded position.
3. The needle assembly of claim 1, wherein the delivery needle is coated on an outside surface with quick clotting features, cauterizing features, or both.
4. The needle assembly claim 2, wherein the internal surface of the delivery needle wall includes one oe more cut features, the one or more cut features facilitating fluid communication between the internal needle lumen and an exterior of the internal needles.
5. The needle assembly of claim 4, wherein the needle assembly further comprises a flexible shaft having a distal end and a proximal end, the distal end of the flexible shaft coupled with the proximal ends of the internal needles.
6. The needle assembly of claim 1, wherein the needle assembly comprises three internal needles.
7. The needle assembly of claim 6, wherein each of the internal needles has a distal aperture in fluid communication with the internal needle lumen.
8. The needle assembly of claim 1, wherein each of the distal ends of the internal needles are sharpened.
9. The needle assembly of claim 8, wherein each of the distal ends of the internal needles form a continuous beveled surface, wherein the angle changes continuously along the bevel.
10. The needle assembly of claim 1, wherein the distal end of the delivery needle is sharpened.
11. The needle assembly of claim 10, wherein the distal end of the delivery needle forms a continuous beveled surface, wherein the angle changes continuously along the bevel.
12. The needle assembly of claim 1, wherein the needle assembly further comprises a connection to a suction source, a steering mechanism, or both.
13. A multi-lumen catheter assembly, comprising:
a biopsy needle contained within one lumen;
an ultrasound probe contained within a second lumen; and
a mechanism for adjusting the angle of the distal tip of the biopsy needle, comprising one or more steering wires.
14. The needle assembly of claim 13, wherein the one or more steering wires is a bowden wire.
15. A method of obtaining a tissue sample, comprising:
inserting a needle assembly in a bronchoscope;
advancing a one or more flexible needles through a distal tip of the needle assembly;
visualizing the tip position with the aid of one or more signature markers; and
manipulating a position of the distal tip to optimally obtain the tissue sample.