1. A removable component for a probe used to treat a patient’s skin with a skin-treatment substance, comprising:
an attachment device having a plurality of holes for respectively accommodating a plurality of electrodes disposed on a head of the probe; and
at least one gauze pad disposed between the attachment device and the head of the probe,
wherein the attachment device is removably attached to the head of the probe.
2. The removable component according to claim 1, wherein the attachment device is a polypropylene cap.
3. The removable component according to claim 1, wherein the head of the probe includes a plurality of return electrodes and an active electrode, and
wherein the at least one gauze pad comprises:
a first gauze pad disposed between the active electrode and the attachment device; and
a second gauze pad disposed between the plurality of return electrodes and the attachment device.
4. The removable component according to claim 3, wherein the active electrode is centrally positioned on the head of the probe, and
wherein the plurality of return electrodes are positioned on a periphery of the head of the probe surrounding the active electrode.
5. The removable component according to claim 3, further comprising:
a conductive insulator provided between the first gauze pad and the second gauze pad.
6. The removable component according to claim 5, wherein the conductive insulator is made from a rubber material.
7. The removable component according to claim 1, wherein the head of the probe includes a channel region surrounding at least one of the electrodes, the removable component further comprising:
means for providing the skin-treatment substance to the channel region.
8. The removable component according to claim 7, wherein the providing means is a tube that connects the channel region to a syringe containing the skin-treatment substance.
9. A method of treating a patient’s skin with a skin-treatment substance, comprising:
providing a gauze pad on either a removable attachment device or on a head of a probe, the attachment device having a plurality of holes for respectively accommodating a plurality of electrodes disposed on the head of the probe;
removably attaching the removable attachment device to the head of the probe; and
treating the patient’s skin by providing the skin-treatment substance to the head of the probe and moving the head of the probe with the removable attachment device attached thereto, across portions of the patient’s skin.
10. The method according to claim 9, wherein the attachment device is a polypropylene cap.
11. The method according to claim 9, wherein the head of the probe includes a plurality of return electrodes and an active electrode, and
wherein the at least one gauze pad comprises:
a first gauze pad disposed between the active electrode and the attachment device; and
a second gauze pad disposed between the plurality of return electrodes and the attachment device.
12. The method according to claim 11, wherein the active electrode is centrally positioned on the head of the probe, and
wherein the plurality of return electrodes are positioned on a periphery of the head of the probe surrounding the active electrode.
13. The removable component according to claim 11, further comprising:
providing a conductive insulator between the first gauze pad and the second gauze pad.
14. The method according to claim 13, wherein the conductive insulator is made from a rubber material.
15. The method according to claim 9, wherein the head of the probe includes a channel region surrounding at least one of the electrodes, the method further comprising:
providing the skin-treatment substance to the channel region.
16. The method according to claim 15, wherein the providing step comprises:
connecting, by way of a tube, the channel region to a syringe containing the skin-treatment substance.
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 shifting tool for use in a hydrocarbon production well, the shifting tool comprising:
a housing assembly having an annular sidewall, at least one pad port disposed through said sidewall, and at least one collet port disposed through said sidewall;
at least one friction pad alignable with said at least one pad port, said at least one friction pad being radially movable through said at least one pad port between a first pad position and a second pad position, wherein in said second pad position said at least one friction pad extends through said at least one pad port;
a mandrel having a flowpath extending between an upper end and a lower end, said mandrel being positioned at least partially within said housing assembly and having a piston section and a collet engaging section, wherein said mandrel is moveable between a first mandrel position and a second mandrel position, wherein in said second mandrel position said piston section supports said at least one friction pad in said second pad position;
a collet having an upper end, a lower end, a plurality of keys moveable between a first key position and a second key position, each of said keys having an inner portion and an outer portion, wherein in said second key position said outer portion extends through said at least one collet port;
a collet spring positioned in the annular space between said mandrel and said housing assembly, said collet spring being longitudinally compressible by upwell movement of said collet;
a spring stop fastened to said mandrel;
a return spring having an upper and lower end, wherein said return spring is compressible by downwell movement of said spring stop;
wherein said collet engagement section comprises an first enlarged portion positioned upwell of a second enlarged portion.
2. A method of shifting an inner sleeve of a downhole device disposed in a tubing string, the method comprising:
introducing a tool into said tubing string proximal to the device, said tool comprising:
a housing assembly having at least one pad port and at least one collet port;
a mandrel having a piston section and a collet engaging section, said mandrel being longitudinally moveable within said housing assembly;
a collet having an upper end, a lower end, a plurality of keys radially moveable between a first key position and a second key position, each of said keys having an inner portion and an outer portion, wherein in said second key position said outer portion extends through said at least one collet port;
at least one friction pad alignable with said at least one pad port, said at least one friction pad being radially movable through said at least one pad port between a first pad position and a second pad position, wherein in said second pad position said at least one friction pad extends through said at least one port;
extending said outer portion of said at least one key past a first predetermined position in said downhole device, said first predetermined position having a first inner diameter less than the outer diameter of said at least one key;
limiting upwell movement of said tool past said first predetermined position;
moving said piston section of said mandrel to a second position that is radially within said at least one friction pad to cause said at least one friction pad to engage the inner sleeve; and
moving said collet engagement section downwell of said at least one key.