US Patent No: 6,402,742
Number of patents in Portfolio can not be more than 2000
Controller for thermal treatment of tissue
Stats
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Jun 11, 2002
Issued date -
Feb 8, 2000
filing date -
09/500,326
serial no -
In Force
status
Importance
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Abstract
Disclosed is an apparatus for use in conjunction with an RF ablation electrode insertable into a patient to ablate body tissue, e.g., prostate tissue of a patient with a BPH condition. The apparatus includes an RF generator for outputting RF current through the ablation electrode and a second electrode in contact with the patient to thereby ablate body tissue in the vicinity of the ablation electrode. Temperature measuring circuitry within the apparatus is coupled to a temperature sensor in a specific body region. An input means such as a plurality of switches on the apparatus housing is provided to enable a user to input a treatment volume corresponding to a target volume of body tissue to be ablated. Delivery of RF power is automatically terminated when a treatment time corresponding to the selected treatment volume is reached. In addition, a hypertonic saline syringe is preferably housed within the controller. Saline solution is caused to flow from the syringe into the treatment region at a controlled rate both immediately prior to and during the delivery of RF power.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 5,458,597 Device for treating cancer and non-malignant tumors and methods | 329 | 1993 | |
| 5,507,743 Coiled RF electrode treatment apparatus | 341 | 1994 | |
| 5,599,346 RF treatment system | 222 | 1994 | |
| 5,810,804 Multiple antenna ablation apparatus and method with cooling element | 167 | 1996 | |
| 5,800,484 Multiple antenna ablation apparatus with expanded electrodes | 130 | 1996 | |
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| 5,531,676 Medical probe device and method | 171 | 1994 | |
| 5,542,916 Dual-channel RF power delivery system | 176 | 1994 | |
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| 5,334,193 Fluid cooled ablation catheter | 721 | 1992 | |
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| 5,496,271 Combined hyperthermia and dilation catheter | 260 | 1993 | |
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| 5,496,311 Physiologic low stress angioplasty | 182 | 1994 | |
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| 5,762,066 Multifaceted ultrasound transducer probe system and methods for its use | 148 | 1995 | |
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| 6,254,598 Sphincter treatment apparatus | 131 | 1999 | |
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| 5,807,395 Method and apparatus for RF ablation and hyperthermia | 442 | 1997 | |
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| 6,241,725 High frequency thermal ablation of cancerous tumors and functional targets with image data assistance | 121 | 1996 | |
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| 5,413,588 Device and method for asymmetrical thermal therapy with helical dipole microwave antenna | 45 | 1992 | |
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| 5,472,441 Device for treating cancer and non-malignant tumors and methods | 491 | 1994 | |
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| 5,540,655 PBH ablation method and apparatus | 158 | 1995 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 11, 2013 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |