US20040172016A1 - Systems and methods for monitoring and controlling use of medical devices - Google Patents
Systems and methods for monitoring and controlling use of medical devices Download PDFInfo
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- US20040172016A1 US20040172016A1 US10/792,423 US79242304A US2004172016A1 US 20040172016 A1 US20040172016 A1 US 20040172016A1 US 79242304 A US79242304 A US 79242304A US 2004172016 A1 US2004172016 A1 US 2004172016A1
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- controller
- logic state
- time
- identification code
- module
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1477—Needle-like probes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/90—Identification means for patients or instruments, e.g. tags
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00017—Electrical control of surgical instruments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00017—Electrical control of surgical instruments
- A61B2017/00022—Sensing or detecting at the treatment site
- A61B2017/00084—Temperature
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00017—Electrical control of surgical instruments
- A61B2017/00199—Electrical control of surgical instruments with a console, e.g. a control panel with a display
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/00234—Surgical instruments, devices or methods, e.g. tourniquets for minimally invasive surgery
- A61B2017/00238—Type of minimally invasive operation
- A61B2017/00269—Type of minimally invasive operation endoscopic mucosal resection EMR
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00477—Coupling
- A61B2017/00482—Coupling with a code
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00214—Expandable means emitting energy, e.g. by elements carried thereon
- A61B2018/0022—Balloons
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00214—Expandable means emitting energy, e.g. by elements carried thereon
- A61B2018/00267—Expandable means emitting energy, e.g. by elements carried thereon having a basket shaped structure
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00315—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for treatment of particular body parts
- A61B2018/00482—Digestive system
- A61B2018/00494—Stomach, intestines or bowel
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00791—Temperature
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2018/00988—Means for storing information, e.g. calibration constants, or for preventing excessive use, e.g. usage, service life counter
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
- A61B90/08—Accessories or related features not otherwise provided for
- A61B2090/0814—Preventing re-use
Definitions
- the invention is directed to systems and methods for monitoring and controlling use of medical devices.
- the invention provides systems and methods for monitoring and controlling use of a device for treating a tissue region.
- the systems and methods provide the device and an element carried by the device for retaining use monitoring information.
- the systems and methods employ a reader to download from the element the use monitoring information to a controller for the device.
- the systems and methods cause the controller to process the use monitoring information by pre-programmed rules to either enable or disable operation of the device.
- the element retains use monitoring information as an identification code unique to the device.
- the pre-programmed rules cause the controller to create a table by registering unlike identification codes in memory as they are downloaded by the reader and to enable operation of the device when a new identification code is registered in the table.
- the pre-programmed rules cause the controller to disable operation of the device when the given identification code matches an identification code in the table.
- the element can express the identification code using, e.g., a magnetic core element, or a bar code strip, or a RFID tag, or by Hall effect, or by an array of fiber optics.
- the element retains use monitoring information as a value reflecting time period of use of the device.
- the pre-programmed rules cause the controller to enable operation of the device only when the value reflects a time period of use less than a prescribed maximum time period of use.
- the element can express the value using, e.g., a magnetic core element, or a bar code strip, or a RFID tag, or a stepper motor.
- the element includes a magnetic core carried by the device having a logic state that changes in response to use of the device.
- magnetic flux in one direction about the core represents a logic one state and magnetic flux in another direction about the core represents a logic zero state.
- the core when initially installed in the device, possesses a logic one state. Use of the device changes the logic state to a logic zero state. When the device is presented for use, the state of the core is sensed. If the core indicates a prior use (logic zero state), reuse of the device is not permitted.
- the element includes a latching relay carried by the device having a relay condition that changes in response to use of the device.
- the relay is biased toward an electrically open condition.
- the relay can be moved and latched into an electrically closed condition.
- Prior to use the relay is located in the electrically open condition.
- the relay is moved and latched to the electrically closed condition.
- the position of the relay is sensed. If the position indicates a prior use (latched closed condition), reuse of the device is not permitted.
- the element includes a use register carried by the device that retains a digital value that changes in response to use of the device.
- the value contained in the use register is sensed. If the value indicates a prior use, reuse of the device is not permitted.
- FIG. 1 is a diagrammatic view of a system for treating body sphincters and adjoining tissue regions, which embodies features of the invention
- FIG. 2 is a perspective view, with portions broken away, of a device usable in association with the system shown in FIG. 1 having an operative element for contacting tissue shown in a collapsed condition;
- FIG. 3 is a perspective view, with portions broken away, of the device shown in FIG. 2, with the operative element shown in an expanded condition;
- FIG. 4 is a perspective view, with portions broken away, of the device shown in FIG. 2, with the operative element shown in an expanded condition and the electrodes extended for use;
- FIG. 5 is an enlarged view of the operative element shown in FIG. 4, with the electrodes extended for use;
- FIG. 6 is a schematic view of a module that uses magnetic core memory to monitor and control incidence of use of the device shown in FIG. 2;
- FIG. 7 is a schematic view of a module that uses a latching relay to monitor and control incidence of use of the device shown in FIG. 2;
- FIG. 8 is a schematic view of a module that uses a micro-chip register to monitor and control incidence of use of the device shown in FIG. 2;
- FIG. 9 is a schematic view of a module that uses an identification code to monitor and control incidence of use of the device shown in FIG. 2.
- FIG. 1 shows one embodiment of a system 10 , which monitors and controls the use of an operative element 12 .
- the system 10 is well adapted for association with single use, catheter-based devices. Therefore, in the illustrated embodiment, the operative element 12 is part of a catheter-based treatment device 26 . It should be appreciated, however, that the system 10 is also adaptable for use with devices and methods that are not necessarily catheter-based.
- the device 26 includes a handle 28 made, e.g., from molded plastic.
- the handle 28 is sized to be conveniently held by a physician, to introduce the catheter tube 30 into the targeted tissue region.
- the handle 28 carries a flexible catheter tube 30 .
- the catheter tube 30 can be constructed, for example, using standard flexible, medical grade plastic materials.
- the catheter tube 30 has a distal end 34 , which carries the operative element 12 .
- the operative element 12 can support, for example, a device for imaging body tissue, such as an endoscope, or an ultrasound transducer.
- the operative element 12 can also support a device to deliver a drug or therapeutic material to body tissue.
- the operative element 12 can also support a device for sensing a physiological characteristic in tissue, such as electrical activity, or for transmitting energy to stimulate or form lesions in tissue.
- the device 26 in use, is intended to treat dysfunction of sphincters and adjoining tissue regions in the upper gastrointestinal tract, e.g., in the lower esophageal sphincter and adjacent cardia of the stomach, as well as in the lower gastrointestinal tract, e.g., in the intestines, rectum and anal canal.
- the system 10 can be used in association with other devices and methods used to treat other dysfunctions elsewhere in the body, which are not necessarily sphincter-related.
- the various aspects of the invention have application in procedures requiring ablation of tissue throughout the body, or treatment of hemorrhoids, or restoring compliance to or otherwise tightening interior tissue or muscle regions.
- one function that the operative element 12 is to perform is to apply energy in a selective fashion to a targeted body region, which, for the purpose of illustration, can be the lower esophageal sphincter, or cardia, or both.
- the applied energy creates one or more lesions, or a prescribed pattern of lesions, below the mucosal surface of the esophagus or cardia.
- the subsurface lesions are formed in a manner that preserves and protects the mucosal surface against thermal damage.
- the structure of the operative element 12 to achieve this result can vary.
- a representative embodiment is shown in FIGS. 2 to 4 , in which the operative element 12 comprises a three-dimensional basket 56 .
- the basket 56 includes one or more spines 58 , and typically includes from four to eight spines 58 , which are assembled together by a distal hub 60 and a proximal base 62 .
- an expandable structure 72 comprising a balloon is located within the basket 56 .
- the balloon structure 72 can be made, e.g., from a Polyethylene Terephthalate (PET) material, or a polyamide (non-compliant) material, or a radiation cross-linked polyethylene (semi-compliant) material, or a latex material, or a silicone material, or a C-Flex (highly compliant) material.
- the balloon structure 72 presents a normally, generally collapsed condition, as FIG. 2 shows. In this condition, the basket 56 is also normally collapsed about the balloon structure 72 , presenting a low profile for deployment into the esophagus 10 .
- the catheter tube 30 includes an interior lumen, which communicates with the interior of the balloon structure 72 .
- a fitting 76 e.g., a syringe-activated check valve
- the fitting 76 communicates with the lumen.
- the fitting 76 couples the lumen to a syringe 78 (see FIG. 3).
- the syringe 78 injects fluid under pressure through the lumen into the balloon structure 72 , causing its expansion.
- Expansion of the balloon structure 72 urges the basket 56 to open and expand (see FIG. 3).
- the force exerted by the balloon structure 72 when expanded, is sufficient to exert an opening force upon the tissue surrounding the basket 56 .
- Each spine 58 carries an electrode 66 (see FIG. 4).
- each electrode 66 is carried within the tubular spine 58 for sliding movement.
- Each electrode 66 slides from a retracted position, withdrawn in the spine 58 (shown in FIG. 3) and an extended position, extending outward from the spine 58 (see FIG. 4) through a hole in the spine 58 .
- a push-pull lever 68 on the handle 28 is coupled by one or more interior wires to the sliding electrodes 66 .
- the lever 68 controls movement electrodes between the retracted position (by pulling rearward on the lever 68 ) and the extended position (by pushing forward on the lever 68 ).
- the electrodes 66 have sufficient distal sharpness and strength, when extended, to penetrate a desired depth into tissue the smooth muscle of the esophageal or cardia 20 wall. The desired depth can range from about 4 mm to about 5 mm.
- the system 10 includes a generator 38 to supply the treatment energy to the electrodes 66 .
- the generator 38 supplies radio frequency energy, e.g., having a frequency in the range of about 400 kHz to about 10 mHz.
- radio frequency energy e.g., having a frequency in the range of about 400 kHz to about 10 mHz.
- other forms of energy can be applied, e.g., coherent or incoherent light; heated or cooled fluid; resistive heating; microwave; ultrasound; a tissue ablation fluid; or cryogenic fluid.
- a cable 40 extending from the proximal end of the handle 28 terminates with an electrical connector 42 .
- the cable 40 is electrically coupled to the operative element 12 , e.g., by wires that extend through the interior of the handle 28 and catheter tube 30 .
- the connector 42 plugs into the generator 38 , to convey the generated energy to the operative element 12 .
- the electrodes 66 are formed of material that conducts radio frequency energy, e.g., nickel titanium, stainless steel, e.g., 304 stainless steel, or a combination of nickel titanium and stainless steel.
- an electrical insulating material 70 is coated about the proximal end of each electrode 66 .
- the material 70 insulates the mucosal surface of the esophagus 10 or cardia 20 from direct exposure to the radio frequency energy. Thermal damage to the mucosal surface is thereby avoided.
- the mucosal surface can also be actively cooled during application of radio frequency energy, to further protect the mucosal surface from thermal damage.
- At least one temperature sensor 80 is associated with each electrode.
- One temperature sensor 80 senses temperature conditions near the exposed distal end of the electrode 66
- a second temperature sensor 80 is located on the corresponding spine 58 , which rests against the muscosal surface when the balloon structure 72 is inflated.
- the system 10 can also include certain auxiliary processing equipment, e.g., an external fluid delivery apparatus 44 for supplying cooling liquid to the targeted tissue, e.g., through holes in the spines, and an external aspirating apparatus 46 for conveying liquid from the targeted tissue site, e.g., through other holes in the spine or elsewhere on the basket 56 .
- auxiliary processing equipment e.g., an external fluid delivery apparatus 44 for supplying cooling liquid to the targeted tissue, e.g., through holes in the spines
- an external aspirating apparatus 46 for conveying liquid from the targeted tissue site, e.g., through other holes in the spine or elsewhere on the basket 56 .
- the system 10 also includes a controller 52 .
- the controller 52 which preferably includes a central processing unit (CPU), is linked to the generator 38 , the fluid delivery apparatus 44 , and the aspirating apparatus 46 .
- the aspirating apparatus 46 can comprise a conventional vacuum source typically present in a physician's suite, which operates continuously, independent of the controller 52 .
- the controller 52 governs the delivery of processing fluid and, if desired, the removal of aspirated material.
- the controller 52 also governs the power levels, cycles, and duration that the radio frequency energy is distributed to the electrodes 66 , to achieve and maintain power levels appropriate to achieve the desired treatment objectives.
- the controller 52 can condition the electrodes 66 to operate in a monopolar mode. In this mode, each electrode 66 serves as a transmitter of energy, and an indifferent patch electrode (not shown) serves as a common return for all electrodes 66 .
- the controller 52 can condition the electrodes 66 to operate in a bipolar mode. In this mode, one of the electrodes comprises the transmitter and another electrode comprises the return for the transmitted energy.
- the bipolar electrode pairs can electrodes 66 on adjacent spines, or electrodes 66 spaced more widely apart on different spines.
- the controller 52 includes an input/output (I/O) device 54 .
- the I/O device 54 allows the physician to input control and processing variables, to enable the controller to generate appropriate command signals.
- the I/O device 54 also receives real time processing feedback information from the temperature sensors 80 , for processing by the controller 52 , e.g., to govern the application of energy and the delivery of processing fluid.
- the I/O device 54 also includes a graphical user interface (GUI), to graphically present processing information to the physician for viewing or analysis.
- GUI graphical user interface
- the handle 28 and the catheter tube 30 form an integrated construction intended for a single use and subsequent disposal as a unit.
- the handle 28 can comprise a nondisposable component intended for multiple uses.
- the catheter tube 30 , and components carried at the end of the catheter tube 30 comprise a disposable assembly, which the physician releasably connects to the handle 28 at time of use and disconnects and discards after use.
- the catheter tube 30 can, for example, include a male plug connector that couples to a female plug receptacle on the handle 28 .
- the controller 54 includes a module 48 that monitors incidence of use of the device and prevents multiple use.
- the module and its interaction with the device 26 can take various forms.
- the device 26 carries within its handle 28 a magnetic core 82 comprising, e.g., a toroidal-shaped piece of ferrite magnetic material. Magnetic flux in one direction about the core 82 represents a logic one state and magnetic flux in another direction about the core 82 represents a logic zero state.
- the core 82 when initially installed in the device 26 , possesses a logic one state. The logic one state therefore indicates the absence of prior use of the device 26 .
- the controller 52 operates the module 48 to sense the state of the core 82 prior to enabling the conveyance of radio frequency energy to the electrodes 66 .
- the module 48 includes a transformer 84 comprising a primary winding 86 , which passes through the core 82 , and a secondary winding 88 , which is located outside the core 82 .
- the transformer 84 is coupled to a current source 90 .
- the module 48 when activated, passes current through the primary winding 86 in a direction that will set the core 82 to a logic zero state. If the core 82 initially contained a logic one state, a pulse of voltage occurs at the terminals of the secondary winding 88 . The determination of whether the core 82 memory was set at a logic one state or logic zero state prior to sampling by the module 48 is therefore indicated, respectively, by the presence or absence of a pulse in the secondary winding 88 .
- the controller 52 is coupled to the module 48 .
- the controller 52 causes current to flow from the source through the primary winding 86 to set the core 82 to logic zero state.
- the controller 52 senses the presence or absence of a voltage pulse in the secondary winding 88 . In the presence of a sensed voltage pulse, the controller 52 enables the conveyance of radio frequency energy to the device 26 .
- the controller 52 After a specified time period of use (e.g., at the end of a treatment cycle or after a prescribed time out period), the controller 52 causes current to flow from the generator 38 through an amplifier 92 to the core 82 in the direction that assures that the core 82 retains the logic zero state.
- the logic zero state of the core 82 therefore indicates that the device 26 has been used.
- the controller 52 does not permit radio frequency energy to be conveyed to the device 26 .
- the controller 52 can also generate an output to the display device 54 , that results in a visual or audible alarm, informing the operator that the device 26 has been previously used and cannot be used again.
- the controller 52 also causes current to flow from the generator 38 through the amplifier to the core 82 in the direction that assures that the core 82 of the device 26 remains in a logic zero state.
- the device 26 carries within its handle 28 a latching relay 94 .
- the latching relay 94 includes a switch arm 96 and a contact 98 coupled to ground.
- the switch arm 96 is biased toward an electrically open condition, away from the contact 98 .
- the switch arm 96 can be moved into an electrically closed condition, against the contact 98 .
- the latching relay 94 also includes a coil 100 . When energized, the coil 100 moves the switch arm 96 to the electrically closed condition.
- the latching relay 94 further includes a permanent magnet 102 that, once the switch arm 96 is moved into the electrically closed condition, retains the switch arm 96 in the electrically closed condition.
- the switch arm 96 When initially installed in the device 26 , the switch arm 96 is located in the electrically open condition. This is treated as a logic one state. The logic one state indicates that the device 26 has not been used.
- the controller 52 operates the module 48 to sense the position of the switch arm 96 prior to enabling the conveyance of radio frequency energy to the electrodes 66 .
- the module 48 includes a first circuit 104 that applies current from a source 106 through a resistor 108 to the switch arm 96 .
- the presence or absence of current flow depends whether the switch arm 96 is in the electrically open condition (i.e., the logic one state) or in the electrically closed condition (which is treated as a logic zero state).
- the module 48 also includes a second circuit 110 that applies current from a source 112 the coil 100 . The application of this current moves the switch arm 96 to the electrically closed condition, which the permanent magnet 102 maintains.
- the controller 52 is coupled to the module 48 .
- the controller 52 senses the presence of current flow through the first circuit 104 .
- the absence current flow in the first circuit 104 i.e., the logic one state
- the controller 52 thereby enables the conveyance of radio frequency energy from the generator 38 to the device 26 .
- the controller 52 After a specified time period of use (e.g., at the end of a treatment cycle or after a prescribed time out period), the controller 52 also causes current to flow in the second circuit 110 . This current moves the switch arm 96 to the electrically closed condition, which is the logic zero state, to indicate that the device 26 has been used.
- the controller 52 then resamples the current flow through the first circuit 104 , to confirm that the switch arm 96 has been successfully moved to the electrically closed condition. If, after current flow through the second circuit 110 , no current flow is sensed in the first circuit 104 (indicating that the switch arm 96 is still in the electrically open condition), the controller 52 generates an error signal.
- the controller 52 will sense the presence of current flow in the first circuit 104 . This indicates prior use of the device 26 . In the presence of a current flow in the first circuit 104 , the controller 52 does not permit radio frequency energy to be conveyed to the device 26 . The controller 52 can also generate an output to the display device 54 that results in a visual or audible alarm, informing the operator that the device 26 has been previously used and cannot be used again.
- the device 26 carries within its handle 28 a use register 144 .
- the use register 114 contains a digital value that changes upon use of the device 26 .
- the use register 114 can comprise a solid state micro-chip, ROM, EEROM, EPROM, or non volatile RAM carried within the handle 28 .
- the use register 114 is initially programmed by the manufacturer of the device 26 , e.g., with a digital value of zero.
- the use register 114 includes an output 116 that generates this digital value upon prompting.
- the use register 114 also includes an input 118 which increments the digital value upon use of the device 26 to apply radio frequency energy.
- the controller 52 operates a module 48 to prompt the use register 114 to output the then resident digital value.
- the controller 52 compares the digital value output to a set value indicating no prior use, i.e., a zero value. A resident value of zero identifies a device 26 that has not be previously used. The controller 52 thereby enables the conveyance of radio frequency energy from the generator 38 to the device 26 .
- the controller 52 After a specified time period of use (e.g., at the end of a treatment cycle or after a prescribed time out period), the controller 52 also generates an input to the use register 114 , which increments the resident value to a value above zero, to indicate that the device 26 has been used.
- the controller 52 will sense the incremented digital value. This indicates prior use of the device 26 . In the presence of an incremented resident value greater than zero, the controller 52 does not permit radio frequency energy to be conveyed to the device 26 .
- the controller 52 can also generate an output to the display device 54 that results in a visual or audible alarm, informing the operator that the device 26 has been previously used and cannot be used again.
- the use register 114 can take other forms and retain a more detailed history of use.
- the use register 114 can be configured to retain a value reflecting the actual period of time during which energy has been applied to the device 26 .
- the use register 114 can comprise an array of magnetic cores, which are embedded by the controller 54 with a pattern of magnetic states that, together, express in binary terms the time-of-use.
- the module 48 includes sense amplifiers to determine the magnetic states of the array and, from that, derive the time-of-use history.
- the use register 114 can comprise a material, e.g., relatively high coercive square loop material, which can be incrementally saturated by pulses of magnetism by the controller 54 over time, such that the magnitude of the charge bears a linear relationship with time-of-use.
- the module 48 includes a sense amplifier to determine the magnitude of the charge and, from that, the time-of-use history.
- the use register 114 can comprise a handle-resident magnetic strip.
- One or more analog magnetic recording heads can be used to record information on the strip during use.
- the module 48 can comprise a bar-code reader, that reads the code in conventional fashion, e.g., as the user swipes the strip on the handle across the reader.
- the same heads in the handle can also be employed to read information from the strip for processing by the module 48 .
- the use register 114 can comprise a miniature stepper or DC motor carried in the handle.
- the stepper motor operates as the device 26 is used, e.g., to incrementally advance an arm in succession across an array of electrical contacts.
- the stepper motor advances the arm serially from one contact to another in proportion to the length of time the device 26 is in use.
- the alignment between the arm and a particular electrical contact is electrically sensed by the module 48 , from which the time-of-use can be ascertained.
- the use register 114 can comprise a conventional RFID tag element carried within the handle.
- the module 48 includes an RFID transponder. The user scans the tag element with the transponder before use, to ascertain time-of-use information, and then scans the tag element with the transponder after use to update the time-of-use information.
- the controller 54 can ascertain whether the time period of previous use or uses retained by the use register 114 is less than a prescribed maximum time period, e.g., 45 minutes. If so, the controller 54 enables operation of the generator 38 in association with the device 26 , but only for the time period remaining. If the controller 54 ascertains that the time period of previous use or uses equals or exceeds the prescribed maximum time period, the controller 54 does not enable use of the generator 38 .
- a prescribed maximum time period e.g. 45 minutes.
- the device 26 carries within its handle 28 an element 200 that holds a value that constitutes a unique identification code 214 capable of being read by the module 48 and registered by the controller 54 .
- the identification code 214 is created to be unique to each device 26 . That is, each device 26 contains its own unique identification code 214 . No two devices 26 share the same identification code 214 .
- the unique identification code 214 can comprise, e.g., a serial number uniquely assigned to the particular device 26 , or any other unique code that is not repeated for any other device 26 .
- the code 214 itself can comprise letters, numbers, or combinations thereof.
- the module 48 reads the identification code 214 for input to the controller 54 .
- This identification code will be called the “instant identification code.”
- the controller 54 constructs and maintains in non-volatile memory a use table 216 .
- the use table 216 contains all prior identification codes that meet the criteria to be registered by the controller 54 . These identification codes will be called the “registered identification codes.”
- the controller 54 compares the instant identification code 214 to all registered identification codes contained in the table 216 . In the absence of a match between the instant identification code and any registered identification code, the controller 54 updates the table, i.e., the controller registers the instant identification code by adding it to the table 216 . Upon registering the usage key card 202 , the controller 54 also enables use of generator 38 in association with the device.
- the controller 54 does not add the duplicative identification code to the table 216 and does not enable use of the generator 38 in association with any device 26 .
- the controller 54 outputs to the display device 54 a visual or audible alarm providing notice of prior use.
- the element 200 can take various forms.
- the element 200 can comprise an array of magnetic cores, which are embedded with a pattern of magnetic states that, together, express a multiple bit binary value expressing the identification code.
- the module 48 includes sense amplifiers to determine the magnetic states of the array and, from that, derive the binary value.
- the element 200 can comprise a strip containing a magnetic or optical bar code that expresses the identification code.
- the module 48 comprises a bar-code reader, that reads the code in conventional fashion, e.g., as the user swipes the strip on the handle across the reader.
- the identification code can be expressed by conventional RFID tag element carried within the handle.
- the module 48 includes an RFID transponder, which scans the tag element to read the code.
- the binary bits of the identification code can also be expressed by Hall effect.
- the module 48 can comprise either an array of Hall effect sensors, which read the multiple-bit identification code in parallel, or by a single, mechanically movable Hall effect sensor, which reads and processes the code bit-by-bit in a serial swiping motion.
- the element 200 can generate the identification code can be expressed in a binary fashion using an array of fiber optics, each fiber expressing a bit of the code.
- the module 48 can comprise an array of photo diodes, which read the multiple-bit optical code in parallel, or by a single, mechanically movable photo diode, which reads and processes the optical code bit-by-bit in a serial swiping motion.
- the controller 54 can also maintain for each registered identification code in the table 216 a time record 218 .
- the time record 218 contains a value reflecting the period of time during which energy was applied by the generator 38 during the previous permitted use.
- the controller 54 ascertains whether the time period of previous use contained in the record 218 is less than a prescribed maximum time period, e.g., 45 minutes. If so, the controller 54 enables a subsequent operation of the generator 38 in association with the device 26 , but only for the time period remaining.
- the controller 54 updates the time record 218 as further use occurs.
- the controller 54 preferably outputs to the display device the time period of permitted use remaining.
- the controller 54 If the controller 54 ascertains that the time period of previous use equals or exceeds the prescribed maximum time period, the controller 54 does not enable use of the generator 38 . Preferably, the controller 54 outputs to the display device notice of prior use.
- Each embodiment of the module 48 assures that the device 26 , once used, cannot be used a second time.
- the device 26 when supplied to a customer, can also be accompanied by a floppy disk.
- the disk when read by a disk drive associated with the controller 52 , identifies the type of catheter in terms of its operational characteristics, the inclusion of temperature sensing, and reuse criteria (e.g., no reuse after a single use, or multiple uses permitted up a prescribed maximum number of uses, or multiple uses permitted up to a maximum time period of use, or multiple uses permitted up to a maximum application of RF energy).
- the disk can also condition the graphical user interface to display the desired images and data formats, which change depending upon the treatment procedure using the device (e.g., treatment of GERD, fecal incontinence, or urinary incontinence).
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Abstract
A device carries an use monitoring element that possesses a state or condition that changes in response to use of the device and that is sensed when the device is presented for use. Reuse of the device is not permitted, if the use monitoring element indicates a prior use.
Description
- This application is a divisional of co-pending U.S. patent application Ser. No. 10/070,465, filed Aug. 14, 2002, which claims the benefit of provisional U.S. Patent Application Serial No. 60/152,749, filed Sep. 8, 1999 and entitled “Systems and Methods for Monitoring and Controlling Use of Medical Devices,” and which is also a continuation-in-part of U.S. patent application Ser. No. 09/495, 390, filed Jan. 31, 2000, and entitled “Systems and Methods for Monitoring and Controlling Use of Medical Devices, now abandoned, and a continuation-in-part of co-pending U.S. patent application Ser. No. 09/574,704, filed May 18, 2000, and entitled “Graphical User Interface for Monitoring and Controlling Use of Medical Devices, now U.S. Pat. No. 6,464,689,” and a continuation-in-part of co-pending U.S. patent application Ser. No. 09/639,910 filed Aug. 16, 2000 and entitled “Unified Systems and Methods for Controlling Use and Operation of a Family of Different Treatment Devices,” now abandoned.
- The invention is directed to systems and methods for monitoring and controlling use of medical devices.
- Use of medical devices intended to treat or diagnose conditions of the body can sometimes generate stress on the material or materials from which the devices are made. The material stress can alter the physical characteristics of the devices, making future performance of the devices unpredictable.
- In addition, exposure to blood and tissue during use can entrap biological components on or within many medical devices. Despite cleaning and subsequent sterilization, the presence of entrapped biological components can lead to unacceptable pyrogenic reactions.
- The effects of material stress and damage caused during a single use of a medical device, coupled with the possibility of pyrogen reactions even after resterilization, reasonably justify imposing a single use restriction upon many medical devices.
- The invention provides systems and methods for monitoring and controlling use of a device for treating a tissue region. The systems and methods provide the device and an element carried by the device for retaining use monitoring information. The systems and methods employ a reader to download from the element the use monitoring information to a controller for the device. The systems and methods cause the controller to process the use monitoring information by pre-programmed rules to either enable or disable operation of the device.
- According to one aspect of the invention, the element retains use monitoring information as an identification code unique to the device. The pre-programmed rules cause the controller to create a table by registering unlike identification codes in memory as they are downloaded by the reader and to enable operation of the device when a new identification code is registered in the table. The pre-programmed rules cause the controller to disable operation of the device when the given identification code matches an identification code in the table.
- The element can express the identification code using, e.g., a magnetic core element, or a bar code strip, or a RFID tag, or by Hall effect, or by an array of fiber optics.
- According to another aspect of the invention, the element retains use monitoring information as a value reflecting time period of use of the device. The pre-programmed rules cause the controller to enable operation of the device only when the value reflects a time period of use less than a prescribed maximum time period of use.
- The element can express the value using, e.g., a magnetic core element, or a bar code strip, or a RFID tag, or a stepper motor.
- According to another aspect of the invention, the element includes a magnetic core carried by the device having a logic state that changes in response to use of the device. In one embodiment, magnetic flux in one direction about the core represents a logic one state and magnetic flux in another direction about the core represents a logic zero state. The core, when initially installed in the device, possesses a logic one state. Use of the device changes the logic state to a logic zero state. When the device is presented for use, the state of the core is sensed. If the core indicates a prior use (logic zero state), reuse of the device is not permitted.
- According to another aspect of the invention, the element includes a latching relay carried by the device having a relay condition that changes in response to use of the device. In one embodiment, the relay is biased toward an electrically open condition. The relay can be moved and latched into an electrically closed condition. Prior to use, the relay is located in the electrically open condition. During use, the relay is moved and latched to the electrically closed condition. When the device is presented for use, the position of the relay is sensed. If the position indicates a prior use (latched closed condition), reuse of the device is not permitted.
- According to another aspect of the invention, the element includes a use register carried by the device that retains a digital value that changes in response to use of the device. In one embodiment, when the device is presented for use, the value contained in the use register is sensed. If the value indicates a prior use, reuse of the device is not permitted.
- Features and advantages of the inventions are set forth in the following Description and Drawings, as well as in the appended claims.
- FIG. 1 is a diagrammatic view of a system for treating body sphincters and adjoining tissue regions, which embodies features of the invention;
- FIG. 2 is a perspective view, with portions broken away, of a device usable in association with the system shown in FIG. 1 having an operative element for contacting tissue shown in a collapsed condition;
- FIG. 3 is a perspective view, with portions broken away, of the device shown in FIG. 2, with the operative element shown in an expanded condition;
- FIG. 4 is a perspective view, with portions broken away, of the device shown in FIG. 2, with the operative element shown in an expanded condition and the electrodes extended for use;
- FIG. 5 is an enlarged view of the operative element shown in FIG. 4, with the electrodes extended for use;
- FIG. 6 is a schematic view of a module that uses magnetic core memory to monitor and control incidence of use of the device shown in FIG. 2;
- FIG. 7 is a schematic view of a module that uses a latching relay to monitor and control incidence of use of the device shown in FIG. 2;
- FIG. 8 is a schematic view of a module that uses a micro-chip register to monitor and control incidence of use of the device shown in FIG. 2; and
- FIG. 9 is a schematic view of a module that uses an identification code to monitor and control incidence of use of the device shown in FIG. 2.
- The invention may be embodied in several forms without departing from its spirit or essential characteristics. The scope of the invention is defined in the appended claims, rather than in the specific description preceding them. All embodiments that fall within the meaning and range of equivalency of the claims are therefore intended to be embraced by the claims.
- FIG. 1 shows one embodiment of a system10, which monitors and controls the use of an
operative element 12. The system 10 is well adapted for association with single use, catheter-based devices. Therefore, in the illustrated embodiment, theoperative element 12 is part of a catheter-basedtreatment device 26. It should be appreciated, however, that the system 10 is also adaptable for use with devices and methods that are not necessarily catheter-based. - A. The Treatment Device
- In the illustrated embodiment, the
device 26 includes ahandle 28 made, e.g., from molded plastic. Thehandle 28 is sized to be conveniently held by a physician, to introduce thecatheter tube 30 into the targeted tissue region. - The
handle 28 carries aflexible catheter tube 30. Thecatheter tube 30 can be constructed, for example, using standard flexible, medical grade plastic materials. Thecatheter tube 30 has adistal end 34, which carries theoperative element 12. - The
operative element 12 can support, for example, a device for imaging body tissue, such as an endoscope, or an ultrasound transducer. Theoperative element 12 can also support a device to deliver a drug or therapeutic material to body tissue. Theoperative element 12 can also support a device for sensing a physiological characteristic in tissue, such as electrical activity, or for transmitting energy to stimulate or form lesions in tissue. - In the illustrated embodiment, the
device 26, in use, is intended to treat dysfunction of sphincters and adjoining tissue regions in the upper gastrointestinal tract, e.g., in the lower esophageal sphincter and adjacent cardia of the stomach, as well as in the lower gastrointestinal tract, e.g., in the intestines, rectum and anal canal. Still, it should be appreciated that the system 10 can be used in association with other devices and methods used to treat other dysfunctions elsewhere in the body, which are not necessarily sphincter-related. For example, the various aspects of the invention have application in procedures requiring ablation of tissue throughout the body, or treatment of hemorrhoids, or restoring compliance to or otherwise tightening interior tissue or muscle regions. - In the illustrated embodiment, one function that the
operative element 12 is to perform is to apply energy in a selective fashion to a targeted body region, which, for the purpose of illustration, can be the lower esophageal sphincter, or cardia, or both. The applied energy creates one or more lesions, or a prescribed pattern of lesions, below the mucosal surface of the esophagus or cardia. The subsurface lesions are formed in a manner that preserves and protects the mucosal surface against thermal damage. - It has been discovered that natural healing of the subsurface lesions leads to a physical tightening of the sphincter and/or adjoining cardia. The subsurface lesions can also result in the interruption of aberrant electrical pathways that may cause spontaneous sphincter relaxation. In any event, the treatment can restore normal closure function to the sphincter.
- The structure of the
operative element 12 to achieve this result can vary. A representative embodiment is shown in FIGS. 2 to 4, in which theoperative element 12 comprises a three-dimensional basket 56. Thebasket 56 includes one ormore spines 58, and typically includes from four to eightspines 58, which are assembled together by adistal hub 60 and aproximal base 62. - In the illustrated embodiment, an
expandable structure 72 comprising a balloon is located within thebasket 56. Theballoon structure 72 can be made, e.g., from a Polyethylene Terephthalate (PET) material, or a polyamide (non-compliant) material, or a radiation cross-linked polyethylene (semi-compliant) material, or a latex material, or a silicone material, or a C-Flex (highly compliant) material. - The
balloon structure 72 presents a normally, generally collapsed condition, as FIG. 2 shows. In this condition, thebasket 56 is also normally collapsed about theballoon structure 72, presenting a low profile for deployment into the esophagus 10. - The
catheter tube 30 includes an interior lumen, which communicates with the interior of theballoon structure 72. A fitting 76 (e.g., a syringe-activated check valve) is carried by thehandle 28. The fitting 76 communicates with the lumen. The fitting 76 couples the lumen to a syringe 78 (see FIG. 3). Thesyringe 78 injects fluid under pressure through the lumen into theballoon structure 72, causing its expansion. - Expansion of the
balloon structure 72 urges thebasket 56 to open and expand (see FIG. 3). The force exerted by theballoon structure 72, when expanded, is sufficient to exert an opening force upon the tissue surrounding thebasket 56. - Each
spine 58 carries an electrode 66 (see FIG. 4). In the illustrated embodiment, eachelectrode 66 is carried within thetubular spine 58 for sliding movement. Eachelectrode 66 slides from a retracted position, withdrawn in the spine 58 (shown in FIG. 3) and an extended position, extending outward from the spine 58 (see FIG. 4) through a hole in thespine 58. A push-pull lever 68 on thehandle 28 is coupled by one or more interior wires to the slidingelectrodes 66. Thelever 68 controls movement electrodes between the retracted position (by pulling rearward on the lever 68) and the extended position (by pushing forward on the lever 68). Theelectrodes 66 have sufficient distal sharpness and strength, when extended, to penetrate a desired depth into tissue the smooth muscle of the esophageal or cardia 20 wall. The desired depth can range from about 4 mm to about 5 mm. - In this arrangement (see FIG. 1), the system10 includes a
generator 38 to supply the treatment energy to theelectrodes 66. In the illustrated embodiment, thegenerator 38 supplies radio frequency energy, e.g., having a frequency in the range of about 400 kHz to about 10 mHz. Of course, other forms of energy can be applied, e.g., coherent or incoherent light; heated or cooled fluid; resistive heating; microwave; ultrasound; a tissue ablation fluid; or cryogenic fluid. - A
cable 40 extending from the proximal end of thehandle 28 terminates with anelectrical connector 42. Thecable 40 is electrically coupled to theoperative element 12, e.g., by wires that extend through the interior of thehandle 28 andcatheter tube 30. Theconnector 42 plugs into thegenerator 38, to convey the generated energy to theoperative element 12. - The
electrodes 66 are formed of material that conducts radio frequency energy, e.g., nickel titanium, stainless steel, e.g., 304 stainless steel, or a combination of nickel titanium and stainless steel. - In the illustrated embodiment (see FIG. 5), an electrical insulating
material 70 is coated about the proximal end of eachelectrode 66. When the distal end of theelectrode 66 penetrating the smooth muscle of the esophageal sphincter 18 or cardia 20 transmits radio frequency energy, thematerial 70 insulates the mucosal surface of the esophagus 10 or cardia 20 from direct exposure to the radio frequency energy. Thermal damage to the mucosal surface is thereby avoided. The mucosal surface can also be actively cooled during application of radio frequency energy, to further protect the mucosal surface from thermal damage. - In the illustrated embodiment (see FIG. 5), at least one
temperature sensor 80 is associated with each electrode. Onetemperature sensor 80 senses temperature conditions near the exposed distal end of theelectrode 66, asecond temperature sensor 80 is located on the correspondingspine 58, which rests against the muscosal surface when theballoon structure 72 is inflated. - The system10 (see FIG. 1) can also include certain auxiliary processing equipment, e.g., an external
fluid delivery apparatus 44 for supplying cooling liquid to the targeted tissue, e.g., through holes in the spines, and anexternal aspirating apparatus 46 for conveying liquid from the targeted tissue site, e.g., through other holes in the spine or elsewhere on thebasket 56. - The system10 also includes a
controller 52. Thecontroller 52, which preferably includes a central processing unit (CPU), is linked to thegenerator 38, thefluid delivery apparatus 44, and the aspiratingapparatus 46. Alternatively, the aspiratingapparatus 46 can comprise a conventional vacuum source typically present in a physician's suite, which operates continuously, independent of thecontroller 52. Thecontroller 52 governs the delivery of processing fluid and, if desired, the removal of aspirated material. - The
controller 52 also governs the power levels, cycles, and duration that the radio frequency energy is distributed to theelectrodes 66, to achieve and maintain power levels appropriate to achieve the desired treatment objectives. Thecontroller 52 can condition theelectrodes 66 to operate in a monopolar mode. In this mode, eachelectrode 66 serves as a transmitter of energy, and an indifferent patch electrode (not shown) serves as a common return for allelectrodes 66. Alternatively, thecontroller 52 can condition theelectrodes 66 to operate in a bipolar mode. In this mode, one of the electrodes comprises the transmitter and another electrode comprises the return for the transmitted energy. The bipolar electrode pairs canelectrodes 66 on adjacent spines, orelectrodes 66 spaced more widely apart on different spines. - The
controller 52 includes an input/output (I/O)device 54. The I/O device 54 allows the physician to input control and processing variables, to enable the controller to generate appropriate command signals. The I/O device 54 also receives real time processing feedback information from thetemperature sensors 80, for processing by thecontroller 52, e.g., to govern the application of energy and the delivery of processing fluid. The I/O device 54 also includes a graphical user interface (GUI), to graphically present processing information to the physician for viewing or analysis. - B. Monitoring and Control of Reuse
- The
handle 28 and thecatheter tube 30 form an integrated construction intended for a single use and subsequent disposal as a unit. Alternatively, thehandle 28 can comprise a nondisposable component intended for multiple uses. In this arrangement, thecatheter tube 30, and components carried at the end of thecatheter tube 30 comprise a disposable assembly, which the physician releasably connects to thehandle 28 at time of use and disconnects and discards after use. Thecatheter tube 30 can, for example, include a male plug connector that couples to a female plug receptacle on thehandle 28. - To protect patients from the potential adverse consequences occasioned by multiple use, which include disease transmission, or material stress and instability, or decreased or unpredictable performance, the
controller 54 includes amodule 48 that monitors incidence of use of the device and prevents multiple use. - The module and its interaction with the
device 26 can take various forms. - 1. Magnetic Core Memory
- In one embodiment (see FIG. 6), the
device 26 carries within its handle 28 amagnetic core 82 comprising, e.g., a toroidal-shaped piece of ferrite magnetic material. Magnetic flux in one direction about thecore 82 represents a logic one state and magnetic flux in another direction about thecore 82 represents a logic zero state. Thecore 82, when initially installed in thedevice 26, possesses a logic one state. The logic one state therefore indicates the absence of prior use of thedevice 26. - Whenever a
device 26 is coupled to thegenerator 38, thecontroller 52 operates themodule 48 to sense the state of thecore 82 prior to enabling the conveyance of radio frequency energy to theelectrodes 66. In the illustrated embodiment, themodule 48 includes atransformer 84 comprising a primary winding 86, which passes through thecore 82, and a secondary winding 88, which is located outside thecore 82. - The
transformer 84 is coupled to acurrent source 90. Themodule 48, when activated, passes current through the primary winding 86 in a direction that will set the core 82 to a logic zero state. If the core 82 initially contained a logic one state, a pulse of voltage occurs at the terminals of the secondary winding 88. The determination of whether the core 82 memory was set at a logic one state or logic zero state prior to sampling by themodule 48 is therefore indicated, respectively, by the presence or absence of a pulse in the secondary winding 88. - The
controller 52 is coupled to themodule 48. When adevice 26 is coupled to thegenerator 38, thecontroller 52 causes current to flow from the source through the primary winding 86 to set the core 82 to logic zero state. Thecontroller 52 senses the presence or absence of a voltage pulse in the secondary winding 88. In the presence of a sensed voltage pulse, thecontroller 52 enables the conveyance of radio frequency energy to thedevice 26. - After a specified time period of use (e.g., at the end of a treatment cycle or after a prescribed time out period), the
controller 52 causes current to flow from thegenerator 38 through anamplifier 92 to the core 82 in the direction that assures that thecore 82 retains the logic zero state. The logic zero state of the core 82 therefore indicates that thedevice 26 has been used. - Should a
device 26 having the core 82 set at the logic zero state be again coupled to thegenerator 38, operation ofmodule 48 to cause current to pass from thesource 90 through the primary winding 86 will this time result in the absence of a sensed pulse in the secondary winding 88 (because thecore 82 is already set at logic zero state). This condition identifies adevice 26 that has been previously been used. - In the absence of a sensed pulse, the
controller 52 does not permit radio frequency energy to be conveyed to thedevice 26. Thecontroller 52 can also generate an output to thedisplay device 54, that results in a visual or audible alarm, informing the operator that thedevice 26 has been previously used and cannot be used again. Thecontroller 52 also causes current to flow from thegenerator 38 through the amplifier to the core 82 in the direction that assures that thecore 82 of thedevice 26 remains in a logic zero state. - 2. Latching Relay
- In another embodiment (see FIG. 7), the
device 26 carries within its handle 28 a latchingrelay 94. The latchingrelay 94 includes a switch arm 96 and acontact 98 coupled to ground. The switch arm 96 is biased toward an electrically open condition, away from thecontact 98. The switch arm 96 can be moved into an electrically closed condition, against thecontact 98. - In the illustrated embodiment, the latching
relay 94 also includes acoil 100. When energized, thecoil 100 moves the switch arm 96 to the electrically closed condition. The latchingrelay 94 further includes apermanent magnet 102 that, once the switch arm 96 is moved into the electrically closed condition, retains the switch arm 96 in the electrically closed condition. - When initially installed in the
device 26, the switch arm 96 is located in the electrically open condition. This is treated as a logic one state. The logic one state indicates that thedevice 26 has not been used. - Whenever a
device 26 is coupled to thegenerator 38, thecontroller 52 operates themodule 48 to sense the position of the switch arm 96 prior to enabling the conveyance of radio frequency energy to theelectrodes 66. - In the illustrated embodiment, the
module 48 includes afirst circuit 104 that applies current from asource 106 through aresistor 108 to the switch arm 96. The presence or absence of current flow depends whether the switch arm 96 is in the electrically open condition (i.e., the logic one state) or in the electrically closed condition (which is treated as a logic zero state). - The
module 48 also includes asecond circuit 110 that applies current from asource 112 thecoil 100. The application of this current moves the switch arm 96 to the electrically closed condition, which thepermanent magnet 102 maintains. - The
controller 52 is coupled to themodule 48. When adevice 26 is coupled to thegenerator 38, thecontroller 52 senses the presence of current flow through thefirst circuit 104. The absence current flow in the first circuit 104 (i.e., the logic one state) indicates that the switch arm 96 is in the electrically open condition. This condition identifies adevice 26 that has not be previously used. Thecontroller 52 thereby enables the conveyance of radio frequency energy from thegenerator 38 to thedevice 26. - After a specified time period of use (e.g., at the end of a treatment cycle or after a prescribed time out period), the
controller 52 also causes current to flow in thesecond circuit 110. This current moves the switch arm 96 to the electrically closed condition, which is the logic zero state, to indicate that thedevice 26 has been used. - In the illustrated embodiment, the
controller 52 then resamples the current flow through thefirst circuit 104, to confirm that the switch arm 96 has been successfully moved to the electrically closed condition. If, after current flow through thesecond circuit 110, no current flow is sensed in the first circuit 104 (indicating that the switch arm 96 is still in the electrically open condition), thecontroller 52 generates an error signal. - Should a
device 26 having the switch arm 96 set at the logic zero state be again coupled to thegenerator 38, thecontroller 52 will sense the presence of current flow in thefirst circuit 104. This indicates prior use of thedevice 26. In the presence of a current flow in thefirst circuit 104, thecontroller 52 does not permit radio frequency energy to be conveyed to thedevice 26. Thecontroller 52 can also generate an output to thedisplay device 54 that results in a visual or audible alarm, informing the operator that thedevice 26 has been previously used and cannot be used again. - 3. Use Register
- In another embodiment (see FIG. 8), the
device 26 carries within its handle 28 a use register 144. Theuse register 114 contains a digital value that changes upon use of thedevice 26. - The
use register 114 can comprise a solid state micro-chip, ROM, EEROM, EPROM, or non volatile RAM carried within thehandle 28. Theuse register 114 is initially programmed by the manufacturer of thedevice 26, e.g., with a digital value of zero. Theuse register 114 includes anoutput 116 that generates this digital value upon prompting. Theuse register 114 also includes aninput 118 which increments the digital value upon use of thedevice 26 to apply radio frequency energy. - Whenever a
device 26 is coupled to thegenerator 38, prior to enabling the conveyance of radio frequency energy to theelectrodes 66, thecontroller 52 operates amodule 48 to prompt theuse register 114 to output the then resident digital value. - The
controller 52 compares the digital value output to a set value indicating no prior use, i.e., a zero value. A resident value of zero identifies adevice 26 that has not be previously used. Thecontroller 52 thereby enables the conveyance of radio frequency energy from thegenerator 38 to thedevice 26. - After a specified time period of use (e.g., at the end of a treatment cycle or after a prescribed time out period), the
controller 52 also generates an input to theuse register 114, which increments the resident value to a value above zero, to indicate that thedevice 26 has been used. - Should a
device 26 with ause register 114 having a resident value greater than zero be again coupled to thegenerator 38, thecontroller 52 will sense the incremented digital value. This indicates prior use of thedevice 26. In the presence of an incremented resident value greater than zero, thecontroller 52 does not permit radio frequency energy to be conveyed to thedevice 26. Thecontroller 52 can also generate an output to thedisplay device 54 that results in a visual or audible alarm, informing the operator that thedevice 26 has been previously used and cannot be used again. - The
use register 114 can take other forms and retain a more detailed history of use. For example, theuse register 114 can be configured to retain a value reflecting the actual period of time during which energy has been applied to thedevice 26. For example, theuse register 114 can comprise an array of magnetic cores, which are embedded by thecontroller 54 with a pattern of magnetic states that, together, express in binary terms the time-of-use. In this arrangement, themodule 48 includes sense amplifiers to determine the magnetic states of the array and, from that, derive the time-of-use history. Alternatively, theuse register 114 can comprise a material, e.g., relatively high coercive square loop material, which can be incrementally saturated by pulses of magnetism by thecontroller 54 over time, such that the magnitude of the charge bears a linear relationship with time-of-use. In this arrangement, themodule 48 includes a sense amplifier to determine the magnitude of the charge and, from that, the time-of-use history. - As another example, the
use register 114 can comprise a handle-resident magnetic strip. One or more analog magnetic recording heads can be used to record information on the strip during use. Themodule 48 can comprise a bar-code reader, that reads the code in conventional fashion, e.g., as the user swipes the strip on the handle across the reader. Alternatively, the same heads in the handle can also be employed to read information from the strip for processing by themodule 48. - As yet another example, the
use register 114 can comprise a miniature stepper or DC motor carried in the handle. The stepper motor operates as thedevice 26 is used, e.g., to incrementally advance an arm in succession across an array of electrical contacts. The stepper motor advances the arm serially from one contact to another in proportion to the length of time thedevice 26 is in use. The alignment between the arm and a particular electrical contact is electrically sensed by themodule 48, from which the time-of-use can be ascertained. - As yet another embodiment, the
use register 114 can comprise a conventional RFID tag element carried within the handle. In this arrangement, themodule 48 includes an RFID transponder. The user scans the tag element with the transponder before use, to ascertain time-of-use information, and then scans the tag element with the transponder after use to update the time-of-use information. - In these embodiments, the
controller 54 can ascertain whether the time period of previous use or uses retained by theuse register 114 is less than a prescribed maximum time period, e.g., 45 minutes. If so, thecontroller 54 enables operation of thegenerator 38 in association with thedevice 26, but only for the time period remaining. If thecontroller 54 ascertains that the time period of previous use or uses equals or exceeds the prescribed maximum time period, thecontroller 54 does not enable use of thegenerator 38. - 4. Device Identification Code
- In another embodiment (see FIG. 9), the
device 26 carries within itshandle 28 anelement 200 that holds a value that constitutes aunique identification code 214 capable of being read by themodule 48 and registered by thecontroller 54. Theidentification code 214 is created to be unique to eachdevice 26. That is, eachdevice 26 contains its ownunique identification code 214. No twodevices 26 share thesame identification code 214. Theunique identification code 214 can comprise, e.g., a serial number uniquely assigned to theparticular device 26, or any other unique code that is not repeated for anyother device 26. Thecode 214 itself can comprise letters, numbers, or combinations thereof. - As FIG. 9 shows, when the
device 26 is coupled to thecontroller 54, themodule 48 reads theidentification code 214 for input to thecontroller 54. This identification code will be called the “instant identification code.” - Following pre-programmed rules, the
controller 54 constructs and maintains in non-volatile memory a use table 216. The use table 216 contains all prior identification codes that meet the criteria to be registered by thecontroller 54. These identification codes will be called the “registered identification codes.” - Following pre-programmed rules, the
controller 54 compares theinstant identification code 214 to all registered identification codes contained in the table 216. In the absence of a match between the instant identification code and any registered identification code, thecontroller 54 updates the table, i.e., the controller registers the instant identification code by adding it to the table 216. Upon registering the usage key card 202, thecontroller 54 also enables use ofgenerator 38 in association with the device. - The presence of a match between the instant identification code and any registered identification code indicates a prior use of the
device 26. In this circumstance, thecontroller 54 does not add the duplicative identification code to the table 216 and does not enable use of thegenerator 38 in association with anydevice 26. Preferably, thecontroller 54 outputs to the display device 54 a visual or audible alarm providing notice of prior use. - The
element 200 can take various forms. For example, theelement 200 can comprise an array of magnetic cores, which are embedded with a pattern of magnetic states that, together, express a multiple bit binary value expressing the identification code. In this arrangement, themodule 48 includes sense amplifiers to determine the magnetic states of the array and, from that, derive the binary value. - As another example, the
element 200 can comprise a strip containing a magnetic or optical bar code that expresses the identification code. In this arrangement, themodule 48 comprises a bar-code reader, that reads the code in conventional fashion, e.g., as the user swipes the strip on the handle across the reader. Alternatively, the identification code can be expressed by conventional RFID tag element carried within the handle. In this arrangement, themodule 48 includes an RFID transponder, which scans the tag element to read the code. - The binary bits of the identification code can also be expressed by Hall effect. In this arrangement, the
module 48 can comprise either an array of Hall effect sensors, which read the multiple-bit identification code in parallel, or by a single, mechanically movable Hall effect sensor, which reads and processes the code bit-by-bit in a serial swiping motion. - Alternatively, the
element 200 can generate the identification code can be expressed in a binary fashion using an array of fiber optics, each fiber expressing a bit of the code. In this arrangement, themodule 48 can comprise an array of photo diodes, which read the multiple-bit optical code in parallel, or by a single, mechanically movable photo diode, which reads and processes the optical code bit-by-bit in a serial swiping motion. - The
controller 54 can also maintain for each registered identification code in the table 216 atime record 218. Thetime record 218 contains a value reflecting the period of time during which energy was applied by thegenerator 38 during the previous permitted use. In this embodiment, when a match occurs between the instant identification code and a registered identification code, thecontroller 54 ascertains whether the time period of previous use contained in therecord 218 is less than a prescribed maximum time period, e.g., 45 minutes. If so, thecontroller 54 enables a subsequent operation of thegenerator 38 in association with thedevice 26, but only for the time period remaining. Thecontroller 54 updates thetime record 218 as further use occurs. Thecontroller 54 preferably outputs to the display device the time period of permitted use remaining. - If the
controller 54 ascertains that the time period of previous use equals or exceeds the prescribed maximum time period, thecontroller 54 does not enable use of thegenerator 38. Preferably, thecontroller 54 outputs to the display device notice of prior use. - Each embodiment of the
module 48, as above described, assures that thedevice 26, once used, cannot be used a second time. Thedevice 26, when supplied to a customer, can also be accompanied by a floppy disk. The disk, when read by a disk drive associated with thecontroller 52, identifies the type of catheter in terms of its operational characteristics, the inclusion of temperature sensing, and reuse criteria (e.g., no reuse after a single use, or multiple uses permitted up a prescribed maximum number of uses, or multiple uses permitted up to a maximum time period of use, or multiple uses permitted up to a maximum application of RF energy). The disk can also condition the graphical user interface to display the desired images and data formats, which change depending upon the treatment procedure using the device (e.g., treatment of GERD, fecal incontinence, or urinary incontinence). - Various features of the invention are set forth in the following claims.
Claims (11)
1. A system for treating a tissue region comprising
a device including a usage regulating mechanism having a logic state being operable to be set to either a logic state of one or a logic state of zero, and
a reader to sense the logic state and enabling operation of the device if the sensed logic state is a pre-established one of the logic state of one and the logic state of zero, the reader further operating, in response to enabling operation of the device, to change the sensed logic state to the other one of the logic state of one and the logic state of zero to prevent subsequent operation of the device.
2. A system as in claim 1
wherein the usage regulating mechanism is a magnetic core.
3. A system as in claim 1
wherein the use regulating mechanism is a latching relay.
4. A system as in claim 3
wherein the latching relay includes a switch arm operable to be set to a first position corresponding to a logic state of one or a second position corresponding to a logic state of zero.
5. A system as in claim 1
wherein the device is adapted to apply radio frequency energy to the tissue region.
6. A system for treating a tissue region comprising
a controller, and
a device including a use register that senses time-of-use of the device and inputs the time-of-use to the controller,
the controller including a processing function for processing the time-of-use to enable operation of the device if the time-of-use is less than a prescribed maximum time period and to disable operation of the device if the time-of-use equals or exceeds the prescribed maximum time period.
7. A system as in claim 6
wherein the use register comprises an array of magnetic cores.
8. A system as in claim 6
wherein the use register comprises a magnetic strip.
9. A system as in claim 6
wherein the use register comprises a stepper motor.
10. A system as in claim 6
wherein the use register comprises a RFID tag element.
11. A system as in claim 6
wherein the device is adapted to apply radio frequency energy to the tissue region.
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Cited By (81)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040092927A1 (en) * | 2002-11-05 | 2004-05-13 | Podhajsky Ronald J. | Electrosurgical pencil having a single button variable control |
US20070083111A1 (en) * | 2005-10-12 | 2007-04-12 | Volcano Corporation | Apparatus and method for use of RFID catheter intelligence |
US20080097427A1 (en) * | 2004-01-09 | 2008-04-24 | Barrx Medical, Inc. | Devices and Methods for Treatment of Luminal Tissue |
US20090036733A1 (en) * | 2007-07-30 | 2009-02-05 | Michael Wallace | Cleaning device and methods |
US20090054889A1 (en) * | 2007-08-24 | 2009-02-26 | Gyrus Medical Limited | Electrosurgical system |
US20090259220A1 (en) * | 2008-04-09 | 2009-10-15 | Angiodynamics, Inc. | Treatment Devices and Methods |
US7648499B2 (en) | 2006-03-21 | 2010-01-19 | Covidien Ag | System and method for generating radio frequency energy |
US7651493B2 (en) | 2006-03-03 | 2010-01-26 | Covidien Ag | System and method for controlling electrosurgical snares |
US7651492B2 (en) | 2006-04-24 | 2010-01-26 | Covidien Ag | Arc based adaptive control system for an electrosurgical unit |
US7722601B2 (en) * | 2003-05-01 | 2010-05-25 | Covidien Ag | Method and system for programming and controlling an electrosurgical generator system |
US7731717B2 (en) | 2006-08-08 | 2010-06-08 | Covidien Ag | System and method for controlling RF output during tissue sealing |
US20100153220A1 (en) * | 2008-09-10 | 2010-06-17 | Eco Rebox Llc | Method of reusing shipping and packing materials |
US7749217B2 (en) | 2002-05-06 | 2010-07-06 | Covidien Ag | Method and system for optically detecting blood and controlling a generator during electrosurgery |
US7766693B2 (en) | 2003-11-20 | 2010-08-03 | Covidien Ag | Connector systems for electrosurgical generator |
US7766905B2 (en) | 2004-02-12 | 2010-08-03 | Covidien Ag | Method and system for continuity testing of medical electrodes |
US7780662B2 (en) | 2004-03-02 | 2010-08-24 | Covidien Ag | Vessel sealing system using capacitive RF dielectric heating |
US7794457B2 (en) | 2006-09-28 | 2010-09-14 | Covidien Ag | Transformer for RF voltage sensing |
US7824400B2 (en) | 2002-12-10 | 2010-11-02 | Covidien Ag | Circuit for controlling arc energy from an electrosurgical generator |
US7828794B2 (en) | 2005-08-25 | 2010-11-09 | Covidien Ag | Handheld electrosurgical apparatus for controlling operating room equipment |
US7834484B2 (en) | 2007-07-16 | 2010-11-16 | Tyco Healthcare Group Lp | Connection cable and method for activating a voltage-controlled generator |
US7879033B2 (en) | 2003-11-20 | 2011-02-01 | Covidien Ag | Electrosurgical pencil with advanced ES controls |
US7901400B2 (en) | 1998-10-23 | 2011-03-08 | Covidien Ag | Method and system for controlling output of RF medical generator |
US7907643B2 (en) | 2002-07-25 | 2011-03-15 | Angiodynamics, Inc. | Laser system |
US7927328B2 (en) | 2006-01-24 | 2011-04-19 | Covidien Ag | System and method for closed loop monitoring of monopolar electrosurgical apparatus |
US7947039B2 (en) | 2005-12-12 | 2011-05-24 | Covidien Ag | Laparoscopic apparatus for performing electrosurgical procedures |
US7955327B2 (en) | 2003-02-20 | 2011-06-07 | Covidien Ag | Motion detector for controlling electrosurgical output |
US7959633B2 (en) | 2003-11-20 | 2011-06-14 | Covidien Ag | Electrosurgical pencil with improved controls |
US7959627B2 (en) | 2005-11-23 | 2011-06-14 | Barrx Medical, Inc. | Precision ablating device |
US7972328B2 (en) | 2006-01-24 | 2011-07-05 | Covidien Ag | System and method for tissue sealing |
US7993336B2 (en) | 1999-11-16 | 2011-08-09 | Barrx Medical, Inc. | Methods and systems for determining physiologic characteristics for treatment of the esophagus |
US7997278B2 (en) | 2005-11-23 | 2011-08-16 | Barrx Medical, Inc. | Precision ablating method |
US8012149B2 (en) | 1999-11-16 | 2011-09-06 | Barrx Medical, Inc. | Methods and systems for determining physiologic characteristics for treatment of the esophagus |
US8016824B2 (en) | 2002-07-25 | 2011-09-13 | Covidien Ag | Electrosurgical pencil with drag sensing capability |
US8025660B2 (en) | 2004-10-13 | 2011-09-27 | Covidien Ag | Universal foot switch contact port |
US8034049B2 (en) | 2006-08-08 | 2011-10-11 | Covidien Ag | System and method for measuring initial tissue impedance |
US8096961B2 (en) | 2003-10-30 | 2012-01-17 | Covidien Ag | Switched resonant ultrasonic power amplifier system |
US8104956B2 (en) | 2003-10-23 | 2012-01-31 | Covidien Ag | Thermocouple measurement circuit |
US8105323B2 (en) | 1998-10-23 | 2012-01-31 | Covidien Ag | Method and system for controlling output of RF medical generator |
US8115635B2 (en) | 2005-02-08 | 2012-02-14 | Abbott Diabetes Care Inc. | RF tag on test strips, test strip vials and boxes |
US8147485B2 (en) | 2006-01-24 | 2012-04-03 | Covidien Ag | System and method for tissue sealing |
US8162937B2 (en) | 2008-06-27 | 2012-04-24 | Tyco Healthcare Group Lp | High volume fluid seal for electrosurgical handpiece |
US8187262B2 (en) | 2006-01-24 | 2012-05-29 | Covidien Ag | Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling |
US8216220B2 (en) | 2007-09-07 | 2012-07-10 | Tyco Healthcare Group Lp | System and method for transmission of combined data stream |
US8216223B2 (en) | 2006-01-24 | 2012-07-10 | Covidien Ag | System and method for tissue sealing |
US8226639B2 (en) | 2008-06-10 | 2012-07-24 | Tyco Healthcare Group Lp | System and method for output control of electrosurgical generator |
US8231620B2 (en) | 2009-02-10 | 2012-07-31 | Tyco Healthcare Group Lp | Extension cutting blade |
US8235987B2 (en) | 2007-12-05 | 2012-08-07 | Tyco Healthcare Group Lp | Thermal penetration and arc length controllable electrosurgical pencil |
US8251992B2 (en) | 2007-07-06 | 2012-08-28 | Tyco Healthcare Group Lp | Method and apparatus for gastrointestinal tract ablation to achieve loss of persistent and/or recurrent excess body weight following a weight-loss operation |
US8287528B2 (en) | 1998-10-23 | 2012-10-16 | Covidien Ag | Vessel sealing system |
US8398631B2 (en) | 1999-11-16 | 2013-03-19 | Covidien Lp | System and method of treating abnormal tissue in the human esophagus |
US8439908B2 (en) | 2007-07-06 | 2013-05-14 | Covidien Lp | Ablation in the gastrointestinal tract to achieve hemostasis and eradicate lesions with a propensity for bleeding |
US8449540B2 (en) | 2003-11-20 | 2013-05-28 | Covidien Ag | Electrosurgical pencil with improved controls |
US8460289B2 (en) | 2005-06-28 | 2013-06-11 | Covidien Ag | Electrode with rotatably deployable sheath |
US8486061B2 (en) | 2009-01-12 | 2013-07-16 | Covidien Lp | Imaginary impedance process monitoring and intelligent shut-off |
US8506565B2 (en) | 2007-08-23 | 2013-08-13 | Covidien Lp | Electrosurgical device with LED adapter |
US8512332B2 (en) | 2007-09-21 | 2013-08-20 | Covidien Lp | Real-time arc control in electrosurgical generators |
CN103300918A (en) * | 2013-07-05 | 2013-09-18 | 陈华 | Frequency limiting device and method for disposable electric pettifoggery adopting radio frequency chip |
US8591509B2 (en) | 2008-03-31 | 2013-11-26 | Covidien Lp | Electrosurgical pencil including improved controls |
US8597292B2 (en) | 2008-03-31 | 2013-12-03 | Covidien Lp | Electrosurgical pencil including improved controls |
US8636733B2 (en) | 2008-03-31 | 2014-01-28 | Covidien Lp | Electrosurgical pencil including improved controls |
US8641711B2 (en) | 2007-05-04 | 2014-02-04 | Covidien Lp | Method and apparatus for gastrointestinal tract ablation for treatment of obesity |
US8646460B2 (en) | 2007-07-30 | 2014-02-11 | Covidien Lp | Cleaning device and methods |
US8663214B2 (en) | 2006-01-24 | 2014-03-04 | Covidien Ag | Method and system for controlling an output of a radio-frequency medical generator having an impedance based control algorithm |
US8668688B2 (en) | 2006-05-05 | 2014-03-11 | Covidien Ag | Soft tissue RF transection and resection device |
US8685016B2 (en) | 2006-01-24 | 2014-04-01 | Covidien Ag | System and method for tissue sealing |
US8702694B2 (en) | 2005-11-23 | 2014-04-22 | Covidien Lp | Auto-aligning ablating device and method of use |
US8734438B2 (en) | 2005-10-21 | 2014-05-27 | Covidien Ag | Circuit and method for reducing stored energy in an electrosurgical generator |
US8753334B2 (en) | 2006-05-10 | 2014-06-17 | Covidien Ag | System and method for reducing leakage current in an electrosurgical generator |
US8777941B2 (en) | 2007-05-10 | 2014-07-15 | Covidien Lp | Adjustable impedance electrosurgical electrodes |
US8784338B2 (en) | 2007-06-22 | 2014-07-22 | Covidien Lp | Electrical means to normalize ablational energy transmission to a luminal tissue surface of varying size |
US8808161B2 (en) | 2003-10-23 | 2014-08-19 | Covidien Ag | Redundant temperature monitoring in electrosurgical systems for safety mitigation |
US8840609B2 (en) | 2010-07-23 | 2014-09-23 | Conmed Corporation | Tissue fusion system and method of performing a functional verification test |
US9186200B2 (en) | 2006-01-24 | 2015-11-17 | Covidien Ag | System and method for tissue sealing |
US9474564B2 (en) | 2005-03-31 | 2016-10-25 | Covidien Ag | Method and system for compensating for external impedance of an energy carrying component when controlling an electrosurgical generator |
US9504516B2 (en) | 2013-05-31 | 2016-11-29 | Covidien LLP | Gain compensation for a full bridge inverter |
US9636165B2 (en) | 2013-07-29 | 2017-05-02 | Covidien Lp | Systems and methods for measuring tissue impedance through an electrosurgical cable |
US9872719B2 (en) | 2013-07-24 | 2018-01-23 | Covidien Lp | Systems and methods for generating electrosurgical energy using a multistage power converter |
US9943359B2 (en) | 2012-04-30 | 2018-04-17 | Covidien Lp | Limited reuse ablation needles and ablation devices for use therewith |
US10045819B2 (en) | 2009-04-14 | 2018-08-14 | Covidien Lp | Frequency identification for microwave ablation probes |
US10278774B2 (en) | 2011-03-18 | 2019-05-07 | Covidien Lp | Selectively expandable operative element support structure and methods of use |
US11564732B2 (en) | 2019-12-05 | 2023-01-31 | Covidien Lp | Tensioning mechanism for bipolar pencil |
Families Citing this family (145)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7115123B2 (en) * | 1996-01-05 | 2006-10-03 | Thermage, Inc. | Handpiece with electrode and non-volatile memory |
US9023031B2 (en) | 1997-08-13 | 2015-05-05 | Verathon Inc. | Noninvasive devices, methods, and systems for modifying tissues |
US20100114087A1 (en) * | 1998-02-19 | 2010-05-06 | Edwards Stuart D | Methods and devices for treating urinary incontinence |
US7468060B2 (en) * | 1998-02-19 | 2008-12-23 | Respiratory Diagnostic, Inc. | Systems and methods for treating obesity and other gastrointestinal conditions |
AU3672299A (en) * | 1998-04-30 | 1999-11-16 | Stuart D Edwards | Electrosurgical sphincter treatment apparatus |
US6740082B2 (en) * | 1998-12-29 | 2004-05-25 | John H. Shadduck | Surgical instruments for treating gastro-esophageal reflux |
US20100042093A9 (en) * | 1998-10-23 | 2010-02-18 | Wham Robert H | System and method for terminating treatment in impedance feedback algorithm |
EP1180004A1 (en) * | 1999-05-18 | 2002-02-20 | Silhouette Medical Inc. | Surgical weight control device |
CA2384025A1 (en) | 1999-09-08 | 2001-03-15 | Curon Medical, Inc. | System for controlling a family of treatment devices |
EP1218801A4 (en) | 1999-09-08 | 2009-07-01 | Mederi Therapeutics Inc | Systems and methods for monitoring and controlling use of medical devices |
JP2003508150A (en) * | 1999-09-08 | 2003-03-04 | キューロン メディカル,インコーポレイテッド | Systems and methods for monitoring and controlling use of medical devices |
US8845632B2 (en) * | 2000-05-18 | 2014-09-30 | Mederi Therapeutics, Inc. | Graphical user interface for monitoring and controlling use of medical devices |
US20030069526A1 (en) * | 2000-08-24 | 2003-04-10 | Timi 3 Systems, Inc. | Applicators that house and support ultrasound transducers for transcutaneous delivery of ultrasound energy |
US7306591B2 (en) | 2000-10-02 | 2007-12-11 | Novasys Medical, Inc. | Apparatus and methods for treating female urinary incontinence |
US7077841B2 (en) * | 2001-03-26 | 2006-07-18 | Curon Medical, Inc. | Systems and methods employing a guidewire for positioning and stabilizing external instruments deployed within the body |
US6699243B2 (en) * | 2001-09-19 | 2004-03-02 | Curon Medical, Inc. | Devices, systems and methods for treating tissue regions of the body |
JP2002282200A (en) * | 2001-03-26 | 2002-10-02 | Olympus Optical Co Ltd | Storage managing system for medical instrument |
JP2003024269A (en) * | 2001-07-12 | 2003-01-28 | Olympus Optical Co Ltd | Medical equipment |
JP2003033371A (en) * | 2001-07-19 | 2003-02-04 | Olympus Optical Co Ltd | Operation tool and drape |
JP4542292B2 (en) * | 2001-09-18 | 2010-09-08 | オリンパス株式会社 | Endoscope system |
US7615049B2 (en) | 2001-09-19 | 2009-11-10 | Mederi Therapeutics, Inc. | Devices, systems and methods for treating tissue regions of the body |
US20060155261A1 (en) | 2001-09-19 | 2006-07-13 | Curon Medical, Inc. | Systems and methods for treating tissue regions of the body |
WO2003079888A2 (en) * | 2002-03-18 | 2003-10-02 | Optim, Inc. | Charing a client for the use of a reusable instrument |
US7258688B1 (en) | 2002-04-16 | 2007-08-21 | Baylis Medical Company Inc. | Computerized electrical signal generator |
US8021359B2 (en) | 2003-02-13 | 2011-09-20 | Coaptus Medical Corporation | Transseptal closure of a patent foramen ovale and other cardiac defects |
US8118732B2 (en) | 2003-04-01 | 2012-02-21 | Boston Scientific Scimed, Inc. | Force feedback control system for video endoscope |
US7591783B2 (en) * | 2003-04-01 | 2009-09-22 | Boston Scientific Scimed, Inc. | Articulation joint for video endoscope |
US20040199052A1 (en) | 2003-04-01 | 2004-10-07 | Scimed Life Systems, Inc. | Endoscopic imaging system |
US20050245789A1 (en) | 2003-04-01 | 2005-11-03 | Boston Scientific Scimed, Inc. | Fluid manifold for endoscope system |
US7578786B2 (en) | 2003-04-01 | 2009-08-25 | Boston Scientific Scimed, Inc. | Video endoscope |
JP4409206B2 (en) * | 2003-05-20 | 2010-02-03 | オリンパス株式会社 | Medical device management support system and medical device management support program |
USD533875S1 (en) | 2003-10-17 | 2006-12-19 | Nuvasive, Inc. | Graphic user interface for a medical monitor |
US7300435B2 (en) * | 2003-11-21 | 2007-11-27 | Sherwood Services Ag | Automatic control system for an electrosurgical generator |
DE102004013159B4 (en) * | 2004-03-17 | 2006-05-11 | Möller Medical GmbH & Co. KG | Medical device, single-use medical disposable articles and method of operating a medical device |
US8545488B2 (en) | 2004-09-17 | 2013-10-01 | The Spectranetics Corporation | Cardiovascular imaging system |
US7479106B2 (en) | 2004-09-30 | 2009-01-20 | Boston Scientific Scimed, Inc. | Automated control of irrigation and aspiration in a single-use endoscope |
WO2006039522A2 (en) | 2004-09-30 | 2006-04-13 | Boston Scientific Scimed, Inc. | Adapter for use with digital imaging medical device |
US8083671B2 (en) | 2004-09-30 | 2011-12-27 | Boston Scientific Scimed, Inc. | Fluid delivery system for use with an endoscope |
US20080015664A1 (en) * | 2004-10-06 | 2008-01-17 | Podhajsky Ronald J | Systems and methods for thermally profiling radiofrequency electrodes |
US7568619B2 (en) * | 2004-12-15 | 2009-08-04 | Alcon, Inc. | System and method for identifying and controlling ophthalmic surgical devices and components |
CA2622407C (en) * | 2005-04-06 | 2011-03-15 | Mallinckrodt Inc. | Systems and methods for managing information relating to medical fluids and containers therefor |
DE112006000913T5 (en) * | 2005-04-22 | 2008-04-17 | Draeger Medical Systems, Inc., Andover | Arrangement for managing medical patient data derived from a plurality of medical units |
US20070100324A1 (en) * | 2005-10-17 | 2007-05-03 | Coaptus Medical Corporation | Systems and methods for applying vacuum to a patient, including via a disposable liquid collection unit |
US8758679B2 (en) * | 2006-03-31 | 2014-06-24 | The Invention Science Fund I, Llc | Surveying sterilizer methods and systems |
US7638090B2 (en) * | 2006-03-31 | 2009-12-29 | Searete Llc | Surveying sterilizer methods and systems |
US8114342B2 (en) * | 2006-03-31 | 2012-02-14 | The Invention Science Fund I, Llc | Methods and systems for monitoring sterilization status |
US8277724B2 (en) * | 2006-03-31 | 2012-10-02 | The Invention Science Fund I, Llc | Sterilization methods and systems |
US20070231192A1 (en) * | 2006-03-31 | 2007-10-04 | Searete Llc, A Limited Liability Corporation Of The State Of Delaware | Sterilization methods and systems |
US11185604B2 (en) | 2006-03-31 | 2021-11-30 | Deep Science Llc | Methods and systems for monitoring sterilization status |
US8932535B2 (en) * | 2006-03-31 | 2015-01-13 | The Invention Science Fund I, Llc | Surveying sterilizer methods and systems |
US20080033368A1 (en) * | 2006-04-04 | 2008-02-07 | Mallinckrodt Inc. | Systems and methods for managing information relating to medical fluids and containers therefor |
US8202265B2 (en) | 2006-04-20 | 2012-06-19 | Boston Scientific Scimed, Inc. | Multiple lumen assembly for use in endoscopes or other medical devices |
US7955255B2 (en) * | 2006-04-20 | 2011-06-07 | Boston Scientific Scimed, Inc. | Imaging assembly with transparent distal cap |
US8002462B2 (en) * | 2006-09-13 | 2011-08-23 | Covidien Ag | Portable thermally profiling phantom and method of using the same |
US20080249523A1 (en) * | 2007-04-03 | 2008-10-09 | Tyco Healthcare Group Lp | Controller for flexible tissue ablation procedures |
US20090012518A1 (en) * | 2007-07-06 | 2009-01-08 | Utley David S | Method and Apparatus for Ablation of Benign, Pre-Cancerous and Early Cancerous Lesions That Originate Within the Epithelium and are Limited to the Mucosal Layer of the Gastrointestinal Tract |
US9861424B2 (en) | 2007-07-11 | 2018-01-09 | Covidien Lp | Measurement and control systems and methods for electrosurgical procedures |
US8152800B2 (en) | 2007-07-30 | 2012-04-10 | Vivant Medical, Inc. | Electrosurgical systems and printed circuit boards for use therewith |
US7645142B2 (en) * | 2007-09-05 | 2010-01-12 | Vivant Medical, Inc. | Electrical receptacle assembly |
US8747398B2 (en) | 2007-09-13 | 2014-06-10 | Covidien Lp | Frequency tuning in a microwave electrosurgical system |
EP2240084B1 (en) | 2008-02-05 | 2016-05-11 | Texas Scottish Rite Hospital For Children | External fixator ring |
WO2009100459A1 (en) | 2008-02-08 | 2009-08-13 | Texas Scottish Rite Hospital For Children | External fixation strut |
JP5667882B2 (en) | 2008-02-12 | 2015-02-12 | テキサス スコティッシュ ライト ホスピタル フォー チルドレン | Quick adjustment of connecting rod for external fixation |
WO2009105479A1 (en) | 2008-02-18 | 2009-08-27 | Texas Scottish Rite Hospital For Children | Tool and method for external fixation strut adjustment |
US8257349B2 (en) | 2008-03-28 | 2012-09-04 | Tyco Healthcare Group Lp | Electrosurgical apparatus with predictive RF source control |
US20090318914A1 (en) * | 2008-06-18 | 2009-12-24 | Utley David S | System and method for ablational treatment of uterine cervical neoplasia |
US9204923B2 (en) | 2008-07-16 | 2015-12-08 | Intuitive Surgical Operations, Inc. | Medical instrument electronically energized using drive cables |
US9277969B2 (en) * | 2009-04-01 | 2016-03-08 | Covidien Lp | Microwave ablation system with user-controlled ablation size and method of use |
US8372100B2 (en) * | 2009-06-19 | 2013-02-12 | Olympus Medical Systems Corp. | Ultrasound surgical apparatus and calibration method therefor |
US8790335B2 (en) * | 2009-08-28 | 2014-07-29 | Covidien Lp | Electrosurgical generator |
US9474565B2 (en) | 2009-09-22 | 2016-10-25 | Mederi Therapeutics, Inc. | Systems and methods for treating tissue with radiofrequency energy |
US9750563B2 (en) | 2009-09-22 | 2017-09-05 | Mederi Therapeutics, Inc. | Systems and methods for treating tissue with radiofrequency energy |
US10386990B2 (en) | 2009-09-22 | 2019-08-20 | Mederi Rf, Llc | Systems and methods for treating tissue with radiofrequency energy |
US9775664B2 (en) | 2009-09-22 | 2017-10-03 | Mederi Therapeutics, Inc. | Systems and methods for treating tissue with radiofrequency energy |
WO2011037621A2 (en) | 2009-09-22 | 2011-03-31 | Mederi Therapeutics Inc. | Systems and methods for controlling use and operation of a family of different treatment devices |
US8568401B2 (en) * | 2009-10-27 | 2013-10-29 | Covidien Lp | System for monitoring ablation size |
US9039655B2 (en) | 2009-11-06 | 2015-05-26 | Crisi Medical Systems, Inc. | Medication injection site and data collection system |
JP2013524862A (en) * | 2010-01-15 | 2013-06-20 | メドトロニック・アドヴァンスド・エナジー・エルエルシー | Electrosurgical apparatus, electrosurgical unit, and method of use thereof |
US9289261B2 (en) * | 2010-02-04 | 2016-03-22 | Buffalo Filter Llc | Electrosurgical device with vacuum port |
US10405917B2 (en) * | 2010-02-04 | 2019-09-10 | Buffalo Filter, Llc | Electrosurgical device with vacuum port |
US9101534B2 (en) | 2010-04-27 | 2015-08-11 | Crisi Medical Systems, Inc. | Medication and identification information transfer apparatus |
US10492991B2 (en) | 2010-05-30 | 2019-12-03 | Crisi Medical Systems, Inc. | Medication container encoding, verification, and identification |
US9514131B1 (en) | 2010-05-30 | 2016-12-06 | Crisi Medical Systems, Inc. | Medication container encoding, verification, and identification |
BR112013003955B1 (en) | 2010-08-20 | 2021-01-05 | Texas Scottish Rite Hospital For Children | method of creating a 3d model of an object |
US10448992B2 (en) * | 2010-10-22 | 2019-10-22 | Arthrocare Corporation | Electrosurgical system with device specific operational parameters |
IT1404771B1 (en) * | 2011-02-10 | 2013-11-29 | Manfredi Saed S R L Flli | WASHING / SUCTION APPLIANCE FOR USE IN LAPAROSCOPY AND LAPAROTOMY |
US9078809B2 (en) | 2011-06-16 | 2015-07-14 | Crisi Medical Systems, Inc. | Medication dose preparation and transfer system |
US10293107B2 (en) | 2011-06-22 | 2019-05-21 | Crisi Medical Systems, Inc. | Selectively Controlling fluid flow through a fluid pathway |
US9744298B2 (en) | 2011-06-22 | 2017-08-29 | Crisi Medical Systems, Inc. | Selectively controlling fluid flow through a fluid pathway |
US9492113B2 (en) | 2011-07-15 | 2016-11-15 | Boston Scientific Scimed, Inc. | Systems and methods for monitoring organ activity |
CN106975117A (en) | 2011-09-21 | 2017-07-25 | 拜耳医药保健有限责任公司 | Continuous multiple fluid pump device, driving and actuating system and method |
WO2013052852A1 (en) | 2011-10-07 | 2013-04-11 | Boston Scientific Scimed, Inc. | Methods and systems for detection and thermal treatment of lower urinary tract conditions |
US20130090640A1 (en) * | 2011-10-07 | 2013-04-11 | University Of Surrey | Methods and systems for detection and thermal treatment of lower urinary tract conditions |
US9283334B2 (en) | 2011-11-23 | 2016-03-15 | Northgate Technologies Inc. | System for identifying the presence and correctness of a medical device accessory |
US8403927B1 (en) | 2012-04-05 | 2013-03-26 | William Bruce Shingleton | Vasectomy devices and methods |
US9204920B2 (en) * | 2012-05-02 | 2015-12-08 | Covidien Lp | External reader for device management |
US9408662B2 (en) | 2012-05-07 | 2016-08-09 | Cook Medical Technologies Llc | Sphincterotome having expandable tines |
MX2014013323A (en) * | 2012-05-11 | 2015-01-22 | Medtronic Ardian Luxembourg | Multi-electrode catheter assemblies for renal neuromodulation and associated systems and methods. |
JP2013255698A (en) * | 2012-06-13 | 2013-12-26 | Hoya Corp | Disposable treatment instrument management system for endoscope |
US9801756B2 (en) * | 2012-09-28 | 2017-10-31 | Zoll Circulation, Inc. | Intravascular heat exchange catheter and system with RFID coupling |
US8574232B1 (en) | 2012-11-13 | 2013-11-05 | Texas Scottish Hospital for Children | External fixation connection rod for rapid and gradual adjustment |
US9364277B2 (en) | 2012-12-13 | 2016-06-14 | Cook Medical Technologies Llc | RF energy controller and method for electrosurgical medical devices |
US9204921B2 (en) | 2012-12-13 | 2015-12-08 | Cook Medical Technologies Llc | RF energy controller and method for electrosurgical medical devices |
US10143830B2 (en) | 2013-03-13 | 2018-12-04 | Crisi Medical Systems, Inc. | Injection site information cap |
US9623211B2 (en) | 2013-03-13 | 2017-04-18 | The Spectranetics Corporation | Catheter movement control |
US9757200B2 (en) * | 2013-03-14 | 2017-09-12 | The Spectranetics Corporation | Intelligent catheter |
US11642169B2 (en) | 2013-03-14 | 2023-05-09 | The Spectranetics Corporation | Smart multiplexed medical laser system |
US10758308B2 (en) | 2013-03-14 | 2020-09-01 | The Spectranetics Corporation | Controller to select optical channel parameters in a catheter |
US9489785B2 (en) | 2013-03-14 | 2016-11-08 | Covidien Lp | RFID secure authentication |
US9830424B2 (en) | 2013-09-18 | 2017-11-28 | Hill-Rom Services, Inc. | Bed/room/patient association systems and methods |
US9474644B2 (en) | 2014-02-07 | 2016-10-25 | Zoll Circulation, Inc. | Heat exchange system for patient temperature control with multiple coolant chambers for multiple heat exchange modalities |
US10792185B2 (en) | 2014-02-14 | 2020-10-06 | Zoll Circulation, Inc. | Fluid cassette with polymeric membranes and integral inlet and outlet tubes for patient heat exchange system |
US11033424B2 (en) | 2014-02-14 | 2021-06-15 | Zoll Circulation, Inc. | Fluid cassette with tensioned polymeric membranes for patient heat exchange system |
CN112869873A (en) | 2014-03-26 | 2021-06-01 | 文科罗斯公司 | Treatment of venous diseases |
US10130382B2 (en) | 2014-03-27 | 2018-11-20 | Medtronic Xomed, Inc. | Powered surgical handpiece having a surgical tool with an RFID tag |
US20150317899A1 (en) | 2014-05-01 | 2015-11-05 | Covidien Lp | System and method for using rfid tags to determine sterilization of devices |
US10478249B2 (en) | 2014-05-07 | 2019-11-19 | Pythagoras Medical Ltd. | Controlled tissue ablation techniques |
US10987168B2 (en) | 2014-05-29 | 2021-04-27 | Spectranetics Llc | System and method for coordinated laser delivery and imaging |
WO2016057756A1 (en) | 2014-10-10 | 2016-04-14 | Becton, Dickinson And Company | Substrate tensioning control device |
US9776757B2 (en) | 2014-10-10 | 2017-10-03 | Becton, Dickinson And Company | Syringe labeling device |
US9784263B2 (en) | 2014-11-06 | 2017-10-10 | Zoll Circulation, Inc. | Heat exchange system for patient temperature control with easy loading high performance peristaltic pump |
US10646274B2 (en) | 2014-12-30 | 2020-05-12 | Regents Of The University Of Minnesota | Laser catheter with use of reflected light and force indication to determine material type in vascular system |
US10646275B2 (en) | 2014-12-30 | 2020-05-12 | Regents Of The University Of Minnesota | Laser catheter with use of determined material type in vascular system in ablation of material |
US10646118B2 (en) | 2014-12-30 | 2020-05-12 | Regents Of The University Of Minnesota | Laser catheter with use of reflected light to determine material type in vascular system |
AU2016205275B2 (en) | 2015-01-09 | 2020-11-12 | Bayer Healthcare Llc | Multiple fluid delivery system with multi-use disposable set and features thereof |
US10045776B2 (en) * | 2015-03-06 | 2018-08-14 | Ethicon Llc | Control techniques and sub-processor contained within modular shaft with select control processing from handle |
US10537465B2 (en) | 2015-03-31 | 2020-01-21 | Zoll Circulation, Inc. | Cold plate design in heat exchanger for intravascular temperature management catheter and/or heat exchange pad |
US10383685B2 (en) | 2015-05-07 | 2019-08-20 | Pythagoras Medical Ltd. | Techniques for use with nerve tissue |
CN108135654B (en) | 2015-11-04 | 2021-03-30 | 波士顿科学医学有限公司 | Medical device and related method |
US20170202614A1 (en) * | 2016-01-20 | 2017-07-20 | Rainbow Medical Ltd. | Catheter guidance and procedure planning |
EP3457975A2 (en) | 2016-05-18 | 2019-03-27 | Pythagoras Medical Ltd. | Helical catheter |
KR101964934B1 (en) * | 2016-07-29 | 2019-04-04 | 삼성디스플레이 주식회사 | Display device and method for fabricating the same |
US11707342B2 (en) * | 2016-12-22 | 2023-07-25 | Medtronic, Inc. | Identification system for medical devices |
US11185440B2 (en) | 2017-02-02 | 2021-11-30 | Zoll Circulation, Inc. | Devices, systems and methods for endovascular temperature control |
US11116657B2 (en) | 2017-02-02 | 2021-09-14 | Zoll Circulation, Inc. | Devices, systems and methods for endovascular temperature control |
US11337851B2 (en) | 2017-02-02 | 2022-05-24 | Zoll Circulation, Inc. | Devices, systems and methods for endovascular temperature control |
US10675100B2 (en) * | 2017-03-06 | 2020-06-09 | Covidien Lp | Systems and methods for improving medical instruments and devices |
US11896823B2 (en) | 2017-04-04 | 2024-02-13 | Btl Healthcare Technologies A.S. | Method and device for pelvic floor tissue treatment |
CA3061722A1 (en) | 2017-04-28 | 2018-11-01 | Stryker Corporation | System and method for indicating mapping of console-based surgical systems |
US11497543B2 (en) | 2017-04-28 | 2022-11-15 | Stryker Corporation | Control console and accessories for RF nerve ablation and methods of operating the same |
US11648047B2 (en) | 2017-10-06 | 2023-05-16 | Vive Scientific, Llc | System and method to treat obstructive sleep apnea |
US11246644B2 (en) | 2018-04-05 | 2022-02-15 | Covidien Lp | Surface ablation using bipolar RF electrode |
US11911325B2 (en) | 2019-02-26 | 2024-02-27 | Hill-Rom Services, Inc. | Bed interface for manual location |
EP3941577A4 (en) | 2019-03-18 | 2022-12-14 | Profound Medical Inc. | Multi-frequency ultrasound therapy system with data encoder |
CN116392236B (en) * | 2023-06-09 | 2023-09-19 | 浙江伽奈维医疗科技有限公司 | Tissue ablation device and control method thereof |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4858615A (en) * | 1981-11-10 | 1989-08-22 | Sentron V.O.F. | Catheter sensor and memory unit |
US5383874A (en) * | 1991-11-08 | 1995-01-24 | Ep Technologies, Inc. | Systems for identifying catheters and monitoring their use |
US5742718A (en) * | 1996-08-13 | 1998-04-21 | Eclipse Surgical Technologies, Inc. | Proprietary fiber connector and electronic security system |
US5743903A (en) * | 1991-11-08 | 1998-04-28 | Ep Technologies, Inc. | Cardiac ablation systems and methods using tissue temperature monitoring and control |
US5848969A (en) * | 1996-10-28 | 1998-12-15 | Ep Technologies, Inc. | Systems and methods for visualizing interior tissue regions using expandable imaging structures |
US6106460A (en) * | 1998-03-26 | 2000-08-22 | Scimed Life Systems, Inc. | Interface for controlling the display of images of diagnostic or therapeutic instruments in interior body regions and related data |
US6165169A (en) * | 1994-03-04 | 2000-12-26 | Ep Technologies, Inc. | Systems and methods for identifying the physical, mechanical, and functional attributes of multiple electrode arrays |
US6387092B1 (en) * | 1999-09-07 | 2002-05-14 | Scimed Life Systems, Inc. | Systems and methods to identify and disable re-used single use devices based on time elapsed from first therapeutic use |
US6391024B1 (en) * | 1999-06-17 | 2002-05-21 | Cardiac Pacemakers, Inc. | RF ablation apparatus and method having electrode/tissue contact assessment scheme and electrocardiogram filtering |
US6464689B1 (en) * | 1999-09-08 | 2002-10-15 | Curon Medical, Inc. | Graphical user interface for monitoring and controlling use of medical devices |
US20020193787A1 (en) * | 2000-01-31 | 2002-12-19 | Curon Medical, Inc. | Graphical user interface for monitoring and controlling use of medical devices |
US20020198519A1 (en) * | 1999-05-04 | 2002-12-26 | Curon Medical, Inc. | Unified systems and methods for controlling use and operation of a family of different treatment devices |
Family Cites Families (178)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1798902A (en) | 1928-11-05 | 1931-03-31 | Edwin M Raney | Surgical instrument |
US3517128A (en) | 1968-02-08 | 1970-06-23 | James R Hines | Surgical expanding arm dilator |
US3901241A (en) | 1973-05-31 | 1975-08-26 | Al Corp Du | Disposable cryosurgical instrument |
DE2513868C2 (en) | 1974-04-01 | 1982-11-04 | Olympus Optical Co., Ltd., Tokyo | Bipolar electrodiathermy forceps |
US4196724A (en) | 1978-01-31 | 1980-04-08 | Frecker William H | Tongue locking device |
WO1981003271A1 (en) | 1980-05-13 | 1981-11-26 | American Hospital Supply Corp | A multipolar electrosurgical device |
JPS5755573A (en) | 1980-09-18 | 1982-04-02 | Olympus Optical Co Ltd | Cassette storing device |
US4565200A (en) | 1980-09-24 | 1986-01-21 | Cosman Eric R | Universal lesion and recording electrode system |
US4411266A (en) | 1980-09-24 | 1983-10-25 | Cosman Eric R | Thermocouple radio frequency lesion electrode |
US5435805A (en) | 1992-08-12 | 1995-07-25 | Vidamed, Inc. | Medical probe device with optical viewing capability |
US5385544A (en) | 1992-08-12 | 1995-01-31 | Vidamed, Inc. | BPH ablation method and apparatus |
US5370675A (en) | 1992-08-12 | 1994-12-06 | Vidamed, Inc. | Medical probe device and method |
US5421819A (en) | 1992-08-12 | 1995-06-06 | Vidamed, Inc. | Medical probe device |
US5542915A (en) | 1992-08-12 | 1996-08-06 | Vidamed, Inc. | Thermal mapping catheter with ultrasound probe |
US4601296A (en) | 1983-10-07 | 1986-07-22 | Yeda Research And Development Co., Ltd. | Hyperthermia apparatus |
US4705041A (en) | 1984-07-06 | 1987-11-10 | Kim Il G | Dilator for Sphincter of Oddi |
US5019075A (en) | 1984-10-24 | 1991-05-28 | The Beth Israel Hospital | Method and apparatus for angioplasty |
US5231995A (en) | 1986-11-14 | 1993-08-03 | Desai Jawahar M | Method for catheter mapping and ablation |
US5365926A (en) | 1986-11-14 | 1994-11-22 | Desai Jawahar M | Catheter for mapping and ablation and method therefor |
US5215103A (en) | 1986-11-14 | 1993-06-01 | Desai Jawahar M | Catheter for mapping and ablation and method therefor |
US4901737A (en) | 1987-04-13 | 1990-02-20 | Toone Kent J | Method and therapeutic apparatus for reducing snoring |
US4943290A (en) | 1987-06-23 | 1990-07-24 | Concept Inc. | Electrolyte purging electrode tip |
JPS6446056U (en) | 1987-09-17 | 1989-03-22 | ||
US5588432A (en) | 1988-03-21 | 1996-12-31 | Boston Scientific Corporation | Catheters for imaging, sensing electrical potentials, and ablating tissue |
US4907589A (en) | 1988-04-29 | 1990-03-13 | Cosman Eric R | Automatic over-temperature control apparatus for a therapeutic heating device |
DE3821544C2 (en) | 1988-06-25 | 1994-04-28 | H Prof Dr Med Just | Dilatation catheter |
US4947842A (en) | 1988-09-22 | 1990-08-14 | Medical Engineering And Development Institute, Inc. | Method and apparatus for treating tissue with first and second modalities |
US4906203A (en) | 1988-10-24 | 1990-03-06 | General Motors Corporation | Electrical connector with shorting clip |
US4955377A (en) | 1988-10-28 | 1990-09-11 | Lennox Charles D | Device and method for heating tissue in a patient's body |
US4966597A (en) | 1988-11-04 | 1990-10-30 | Cosman Eric R | Thermometric cardiac tissue ablation electrode with ultra-sensitive temperature detection |
DE3838840C2 (en) | 1988-11-17 | 1997-02-20 | Leibinger Gmbh | High frequency coagulation device for surgical purposes |
CA1332905C (en) | 1989-03-10 | 1994-11-08 | John A. Murchie | Method and apparatus for treatment of snoring |
US4976711A (en) | 1989-04-13 | 1990-12-11 | Everest Medical Corporation | Ablation catheter with selectively deployable electrodes |
US5078717A (en) | 1989-04-13 | 1992-01-07 | Everest Medical Corporation | Ablation catheter with selectively deployable electrodes |
US5057107A (en) | 1989-04-13 | 1991-10-15 | Everest Medical Corporation | Ablation catheter with selectively deployable electrodes |
US5125928A (en) | 1989-04-13 | 1992-06-30 | Everest Medical Corporation | Ablation catheter with selectively deployable electrodes |
DE3915636C1 (en) | 1989-05-12 | 1990-04-26 | Sass, Wolfgang, Dr. | |
US5084044A (en) | 1989-07-14 | 1992-01-28 | Ciron Corporation | Apparatus for endometrial ablation and method of using same |
WO1991001773A1 (en) | 1989-08-01 | 1991-02-21 | Enrico Mangieri | Percutaneous mechanical dilating catheter for cardiac valves and blood vessels |
WO1991003207A1 (en) | 1989-09-08 | 1991-03-21 | Boston Scientific Corporation | Physiologic low stress angioplasty |
US5035696A (en) | 1990-02-02 | 1991-07-30 | Everest Medical Corporation | Electrosurgical instrument for conducting endoscopic retrograde sphincterotomy |
US5205287A (en) | 1990-04-26 | 1993-04-27 | Hoechst Aktiengesellschaft | Ultrasonic contrast agents, processes for their preparation and the use thereof as diagnostic and therapeutic agents |
US5122137A (en) | 1990-04-27 | 1992-06-16 | Boston Scientific Corporation | Temperature controlled rf coagulation |
US5236413B1 (en) | 1990-05-07 | 1996-06-18 | Andrew J Feiring | Method and apparatus for inducing the permeation of medication into internal tissue |
US5190540A (en) | 1990-06-08 | 1993-03-02 | Cardiovascular & Interventional Research Consultants, Inc. | Thermal balloon angioplasty |
US5233515A (en) | 1990-06-08 | 1993-08-03 | Cosman Eric R | Real-time graphic display of heat lesioning parameters in a clinical lesion generator system |
US5083565A (en) | 1990-08-03 | 1992-01-28 | Everest Medical Corporation | Electrosurgical instrument for ablating endocardial tissue |
US5100423A (en) | 1990-08-21 | 1992-03-31 | Medical Engineering & Development Institute, Inc. | Ablation catheter |
DE9190129U1 (en) | 1990-09-14 | 1993-07-01 | American Medical Systems, Inc., Minnetonka, Minn. | Combined hyperthermia and dilatation catheter |
US5316020A (en) | 1990-10-03 | 1994-05-31 | Ernest Truffer | Snoring prevention device |
US5256138A (en) | 1990-10-04 | 1993-10-26 | The Birtcher Corporation | Electrosurgical handpiece incorporating blade and conductive gas functionality |
US5088979A (en) | 1990-10-11 | 1992-02-18 | Wilson-Cook Medical Inc. | Method for esophageal invagination and devices useful therein |
US5190541A (en) | 1990-10-17 | 1993-03-02 | Boston Scientific Corporation | Surgical instrument and method |
ES2075676T3 (en) | 1990-12-10 | 1995-10-01 | Howmedica | DEVICE AND PROCEDURE FOR THE INTERSTICIAL APPLICATION OF LASER ENERGY. |
US5368557A (en) | 1991-01-11 | 1994-11-29 | Baxter International Inc. | Ultrasonic ablation catheter device having multiple ultrasound transmission members |
US5094233A (en) | 1991-01-11 | 1992-03-10 | Brennan Louis G | Turbinate sheath device |
US5409453A (en) | 1992-08-12 | 1995-04-25 | Vidamed, Inc. | Steerable medical probe with stylets |
US5465717A (en) | 1991-02-15 | 1995-11-14 | Cardiac Pathways Corporation | Apparatus and Method for ventricular mapping and ablation |
US5345936A (en) | 1991-02-15 | 1994-09-13 | Cardiac Pathways Corporation | Apparatus with basket assembly for endocardial mapping |
US5156151A (en) | 1991-02-15 | 1992-10-20 | Cardiac Pathways Corporation | Endocardial mapping and ablation system and catheter probe |
US5370901A (en) | 1991-02-15 | 1994-12-06 | Bracco International B.V. | Compositions for increasing the image contrast in diagnostic investigations of the digestive tract of patients |
US5275610A (en) | 1991-05-13 | 1994-01-04 | Cook Incorporated | Surgical retractors and method of use |
CA2109793A1 (en) | 1991-05-24 | 1992-12-10 | Stuart D. Edwards | Combination monophasic action potential/ablation catheter and high-performance filter system |
US5383917A (en) | 1991-07-05 | 1995-01-24 | Jawahar M. Desai | Device and method for multi-phase radio-frequency ablation |
US5275608A (en) | 1991-10-16 | 1994-01-04 | Implemed, Inc. | Generic endoscopic instrument |
CA2106410C (en) | 1991-11-08 | 2004-07-06 | Stuart D. Edwards | Ablation electrode with insulated temperature sensing elements |
US5257451A (en) | 1991-11-08 | 1993-11-02 | Ep Technologies, Inc. | Method of making durable sleeve for enclosing a bendable electrode tip assembly |
JPH07500756A (en) | 1991-11-08 | 1995-01-26 | イーピー テクノロジーズ,インコーポレイテッド | Radiofrequency ablation with phase-sensitive power detection |
US5363861A (en) | 1991-11-08 | 1994-11-15 | Ep Technologies, Inc. | Electrode tip assembly with variable resistance to bending |
US5275162A (en) | 1991-11-08 | 1994-01-04 | Ep Technologies, Inc. | Valve mapping catheter |
US5328467A (en) | 1991-11-08 | 1994-07-12 | Ep Technologies, Inc. | Catheter having a torque transmitting sleeve |
US5197964A (en) | 1991-11-12 | 1993-03-30 | Everest Medical Corporation | Bipolar instrument utilizing one stationary electrode and one movable electrode |
US5197963A (en) | 1991-12-02 | 1993-03-30 | Everest Medical Corporation | Electrosurgical instrument with extendable sheath for irrigation and aspiration |
US5263493A (en) | 1992-02-24 | 1993-11-23 | Boaz Avitall | Deflectable loop electrode array mapping and ablation catheter for cardiac chambers |
US5242441A (en) | 1992-02-24 | 1993-09-07 | Boaz Avitall | Deflectable catheter with rotatable tip electrode |
US5480644A (en) | 1992-02-28 | 1996-01-02 | Jsf Consultants Ltd. | Use of injectable biomaterials for the repair and augmentation of the anal sphincters |
US5281216A (en) | 1992-03-31 | 1994-01-25 | Valleylab, Inc. | Electrosurgical bipolar treating apparatus |
US5281217A (en) | 1992-04-13 | 1994-01-25 | Ep Technologies, Inc. | Steerable antenna systems for cardiac ablation that minimize tissue damage and blood coagulation due to conductive heating patterns |
WO1993020886A1 (en) | 1992-04-13 | 1993-10-28 | Ep Technologies, Inc. | Articulated systems for cardiac ablation |
US5314466A (en) | 1992-04-13 | 1994-05-24 | Ep Technologies, Inc. | Articulated unidirectional microwave antenna systems for cardiac ablation |
WO1993020768A1 (en) | 1992-04-13 | 1993-10-28 | Ep Technologies, Inc. | Steerable microwave antenna systems for cardiac ablation |
US5277201A (en) | 1992-05-01 | 1994-01-11 | Vesta Medical, Inc. | Endometrial ablation apparatus and method |
US5443470A (en) | 1992-05-01 | 1995-08-22 | Vesta Medical, Inc. | Method and apparatus for endometrial ablation |
US5562720A (en) | 1992-05-01 | 1996-10-08 | Vesta Medical, Inc. | Bipolar/monopolar endometrial ablation device and method |
US5281218A (en) | 1992-06-05 | 1994-01-25 | Cardiac Pathways Corporation | Catheter having needle electrode for radiofrequency ablation |
US5324284A (en) | 1992-06-05 | 1994-06-28 | Cardiac Pathways, Inc. | Endocardial mapping and ablation system utilizing a separately controlled ablation catheter and method |
US5254126A (en) | 1992-06-24 | 1993-10-19 | Ethicon, Inc. | Endoscopic suture punch |
WO1994002077A2 (en) | 1992-07-15 | 1994-02-03 | Angelase, Inc. | Ablation catheter system |
US5514131A (en) | 1992-08-12 | 1996-05-07 | Stuart D. Edwards | Method for the ablation treatment of the uvula |
US5456662A (en) | 1993-02-02 | 1995-10-10 | Edwards; Stuart D. | Method for reducing snoring by RF ablation of the uvula |
US5720718A (en) | 1992-08-12 | 1998-02-24 | Vidamed, Inc. | Medical probe apparatus with enhanced RF, resistance heating, and microwave ablation capabilities |
US5542916A (en) | 1992-08-12 | 1996-08-06 | Vidamed, Inc. | Dual-channel RF power delivery system |
US5672153A (en) | 1992-08-12 | 1997-09-30 | Vidamed, Inc. | Medical probe device and method |
US5470308A (en) | 1992-08-12 | 1995-11-28 | Vidamed, Inc. | Medical probe with biopsy stylet |
US5484400A (en) | 1992-08-12 | 1996-01-16 | Vidamed, Inc. | Dual channel RF delivery system |
US5556377A (en) | 1992-08-12 | 1996-09-17 | Vidamed, Inc. | Medical probe apparatus with laser and/or microwave monolithic integrated circuit probe |
US5486161A (en) | 1993-02-02 | 1996-01-23 | Zomed International | Medical probe device and method |
US5293869A (en) | 1992-09-25 | 1994-03-15 | Ep Technologies, Inc. | Cardiac probe with dynamic support for maintaining constant surface contact during heart systole and diastole |
US5401272A (en) | 1992-09-25 | 1995-03-28 | Envision Surgical Systems, Inc. | Multimodality probe with extendable bipolar electrodes |
US5309910A (en) | 1992-09-25 | 1994-05-10 | Ep Technologies, Inc. | Cardiac mapping and ablation systems |
US5313943A (en) | 1992-09-25 | 1994-05-24 | Ep Technologies, Inc. | Catheters and methods for performing cardiac diagnosis and treatment |
US5471982A (en) | 1992-09-29 | 1995-12-05 | Ep Technologies, Inc. | Cardiac mapping and ablation systems |
US5334196A (en) | 1992-10-05 | 1994-08-02 | United States Surgical Corporation | Endoscopic fastener remover |
US5415657A (en) | 1992-10-13 | 1995-05-16 | Taymor-Luria; Howard | Percutaneous vascular sealing method |
EP0719113A1 (en) | 1992-11-13 | 1996-07-03 | American Cardiac Ablation Co., Inc. | Fluid cooled electrosurgical probe |
US5342357A (en) | 1992-11-13 | 1994-08-30 | American Cardiac Ablation Co., Inc. | Fluid cooled electrosurgical cauterization system |
US5348554A (en) | 1992-12-01 | 1994-09-20 | Cardiac Pathways Corporation | Catheter for RF ablation with cooled electrode |
US5400267A (en) | 1992-12-08 | 1995-03-21 | Hemostatix Corporation | Local in-device memory feature for electrically powered medical equipment |
US5409483A (en) | 1993-01-22 | 1995-04-25 | Jeffrey H. Reese | Direct visualization surgical probe |
WO1994017856A1 (en) | 1993-02-02 | 1994-08-18 | Vidamed, Inc. | Transurethral needle ablation device and method |
DE4303882C2 (en) | 1993-02-10 | 1995-02-09 | Kernforschungsz Karlsruhe | Combination instrument for separation and coagulation for minimally invasive surgery |
US5636634A (en) | 1993-03-16 | 1997-06-10 | Ep Technologies, Inc. | Systems using guide sheaths for introducing, deploying, and stabilizing cardiac mapping and ablation probes |
US5330488A (en) | 1993-03-23 | 1994-07-19 | Goldrath Milton H | Verres needle suturing kit |
US5403311A (en) | 1993-03-29 | 1995-04-04 | Boston Scientific Corporation | Electro-coagulation and ablation and other electrotherapeutic treatments of body tissue |
US5336222A (en) | 1993-03-29 | 1994-08-09 | Boston Scientific Corporation | Integrated catheter for diverse in situ tissue therapy |
CA2136988A1 (en) | 1993-04-07 | 1994-10-13 | Mir A. Imran | Apparatus and method for ventricular mapping and ablation |
US5365945A (en) | 1993-04-13 | 1994-11-22 | Halstrom Leonard W | Adjustable dental applicance for treatment of snoring and obstructive sleep apnea |
US5383871A (en) | 1993-06-03 | 1995-01-24 | The Procter & Gamble Company | Absorbent articles having a closure system providing sustained dynamic fit |
DE4318588C1 (en) | 1993-06-04 | 1994-08-25 | Beiersdorf Ag | Ankle joint orthesis with U-shaped joint cuff and flexible web |
ATE284650T1 (en) | 1993-06-10 | 2005-01-15 | Mir A Imran | URETHRAL DEVICE FOR ABLATION USING HIGH FREQUENCY |
CA2165829A1 (en) | 1993-07-01 | 1995-01-19 | John E. Abele | Imaging, electrical potential sensing, and ablation catheters |
US5860974A (en) | 1993-07-01 | 1999-01-19 | Boston Scientific Corporation | Heart ablation catheter with expandable electrode and method of coupling energy to an electrode on a catheter shaft |
DE4323585A1 (en) | 1993-07-14 | 1995-01-19 | Delma Elektro Med App | Bipolar high-frequency surgical instrument |
US5738096A (en) | 1993-07-20 | 1998-04-14 | Biosense, Inc. | Cardiac electromechanics |
US5433739A (en) | 1993-11-02 | 1995-07-18 | Sluijter; Menno E. | Method and apparatus for heating an intervertebral disc for relief of back pain |
US5599345A (en) | 1993-11-08 | 1997-02-04 | Zomed International, Inc. | RF treatment apparatus |
US5507743A (en) | 1993-11-08 | 1996-04-16 | Zomed International | Coiled RF electrode treatment apparatus |
US5458597A (en) | 1993-11-08 | 1995-10-17 | Zomed International | Device for treating cancer and non-malignant tumors and methods |
US5536267A (en) | 1993-11-08 | 1996-07-16 | Zomed International | Multiple electrode ablation apparatus |
US5683384A (en) | 1993-11-08 | 1997-11-04 | Zomed | Multiple antenna ablation apparatus |
WO1995020345A1 (en) | 1994-01-28 | 1995-08-03 | Ep Technologies, Inc. | Minimizing blood contact in cardiac tissue measurements |
US5423812A (en) | 1994-01-31 | 1995-06-13 | Ellman; Alan G. | Electrosurgical stripping electrode for palatopharynx tissue |
US5363347A (en) | 1994-02-24 | 1994-11-08 | Hap Nguyen | Vending tanning timer |
US5458596A (en) | 1994-05-06 | 1995-10-17 | Dorsal Orthopedic Corporation | Method and apparatus for controlled contraction of soft tissue |
US6092528A (en) * | 1994-06-24 | 2000-07-25 | Edwards; Stuart D. | Method to treat esophageal sphincters |
US6006755A (en) * | 1994-06-24 | 1999-12-28 | Edwards; Stuart D. | Method to detect and treat aberrant myoelectric activity |
US6056744A (en) * | 1994-06-24 | 2000-05-02 | Conway Stuart Medical, Inc. | Sphincter treatment apparatus |
US5505730A (en) | 1994-06-24 | 1996-04-09 | Stuart D. Edwards | Thin layer ablation apparatus |
US6044846A (en) * | 1994-06-24 | 2000-04-04 | Edwards; Stuart D. | Method to treat esophageal sphincters |
US5609151A (en) | 1994-09-08 | 1997-03-11 | Medtronic, Inc. | Method for R-F ablation |
US5558673A (en) | 1994-09-30 | 1996-09-24 | Vidamed, Inc. | Medical probe device and method having a flexible resilient tape stylet |
US5571116A (en) | 1994-10-02 | 1996-11-05 | United States Surgical Corporation | Non-invasive treatment of gastroesophageal reflux disease |
US5514130A (en) | 1994-10-11 | 1996-05-07 | Dorsal Med International | RF apparatus for controlled depth ablation of soft tissue |
US5588960A (en) | 1994-12-01 | 1996-12-31 | Vidamed, Inc. | Transurethral needle delivery device with cystoscope and method for treatment of urinary incontinence |
US5868740A (en) | 1995-03-24 | 1999-02-09 | Board Of Regents-Univ Of Nebraska | Method for volumetric tissue ablation |
US5709224A (en) | 1995-06-07 | 1998-01-20 | Radiotherapeutics Corporation | Method and device for permanent vessel occlusion |
US5702438A (en) | 1995-06-08 | 1997-12-30 | Avitall; Boaz | Expandable recording and ablation catheter system |
US6023638A (en) | 1995-07-28 | 2000-02-08 | Scimed Life Systems, Inc. | System and method for conducting electrophysiological testing using high-voltage energy pulses to stun tissue |
US5624439A (en) | 1995-08-18 | 1997-04-29 | Somnus Medical Technologies, Inc. | Method and apparatus for treatment of air way obstructions |
AU712870B2 (en) | 1995-09-29 | 1999-11-18 | Johnson & Johnson Vision Products, Inc. | Automated apparatus and method for consolidating products for packaging |
US5837001A (en) | 1995-12-08 | 1998-11-17 | C. R. Bard | Radio frequency energy delivery system for multipolar electrode catheters |
US5830213A (en) | 1996-04-12 | 1998-11-03 | Ep Technologies, Inc. | Systems for heating and ablating tissue using multifunctional electrode structures |
US5871483A (en) | 1996-01-19 | 1999-02-16 | Ep Technologies, Inc. | Folding electrode structures |
US5836874A (en) | 1996-04-08 | 1998-11-17 | Ep Technologies, Inc. | Multi-function electrode structures for electrically analyzing and heating body tissue |
CA2248260C (en) | 1996-03-05 | 2010-11-16 | Michael D. Laufer | Vascular catheter-based system for heating tissue |
US5755760A (en) | 1996-03-11 | 1998-05-26 | Medtronic, Inc. | Deflectable catheter |
WO1997043971A2 (en) | 1996-05-22 | 1997-11-27 | Somnus Medical Technologies, Inc. | Method and apparatus for ablating turbinates |
US6464697B1 (en) * | 1998-02-19 | 2002-10-15 | Curon Medical, Inc. | Stomach and adjoining tissue regions in the esophagus |
US5891030A (en) | 1997-01-24 | 1999-04-06 | Mayo Foundation For Medical Education And Research | System for two dimensional and three dimensional imaging of tubular structures in the human body |
US5916163A (en) | 1997-03-07 | 1999-06-29 | Ep Technologies, Inc. | Graphical user interface for use with multiple electrode catheters |
ES2353846T3 (en) | 1997-04-11 | 2011-03-07 | United States Surgical Corporation | APPLIANCE FOR RF ABLATION AND CONTROLLER OF THE SAME. |
AU9680398A (en) | 1997-10-02 | 1999-04-27 | Cardiogenesis Corporation | Transmyocardial revascularization using radiofrequency energy |
US6063082A (en) | 1997-11-04 | 2000-05-16 | Scimed Life Systems, Inc. | Percutaneous myocardial revascularization basket delivery system and radiofrequency therapeutic device |
AU2114299A (en) * | 1998-01-14 | 1999-08-02 | Conway-Stuart Medical, Inc. | Electrosurgical device for sphincter treatment |
US6358245B1 (en) | 1998-02-19 | 2002-03-19 | Curon Medical, Inc. | Graphical user interface for association with an electrode structure deployed in contact with a tissue region |
US6790207B2 (en) * | 1998-06-04 | 2004-09-14 | Curon Medical, Inc. | Systems and methods for applying a selected treatment agent into contact with tissue to treat disorders of the gastrointestinal tract |
US7468060B2 (en) * | 1998-02-19 | 2008-12-23 | Respiratory Diagnostic, Inc. | Systems and methods for treating obesity and other gastrointestinal conditions |
US6645201B1 (en) * | 1998-02-19 | 2003-11-11 | Curon Medical, Inc. | Systems and methods for treating dysfunctions in the intestines and rectum |
US6014581A (en) | 1998-03-26 | 2000-01-11 | Ep Technologies, Inc. | Interface for performing a diagnostic or therapeutic procedure on heart tissue with an electrode structure |
US6802841B2 (en) * | 1998-06-04 | 2004-10-12 | Curon Medical, Inc. | Systems and methods for applying a selected treatment agent into contact with tissue to treat sphincter dysfunction |
US6237604B1 (en) | 1999-09-07 | 2001-05-29 | Scimed Life Systems, Inc. | Systems and methods for preventing automatic identification of re-used single use devices |
EP1218801A4 (en) * | 1999-09-08 | 2009-07-01 | Mederi Therapeutics Inc | Systems and methods for monitoring and controlling use of medical devices |
US6547776B1 (en) * | 2000-01-03 | 2003-04-15 | Curon Medical, Inc. | Systems and methods for treating tissue in the crura |
US6544226B1 (en) * | 2000-03-13 | 2003-04-08 | Curon Medical, Inc. | Operative devices that can be removably fitted on catheter bodies to treat tissue regions in the body |
US6468241B1 (en) | 2000-10-26 | 2002-10-22 | Chf Solutions, Inc. | Artificial kidney set with electronic key |
US7077841B2 (en) * | 2001-03-26 | 2006-07-18 | Curon Medical, Inc. | Systems and methods employing a guidewire for positioning and stabilizing external instruments deployed within the body |
US7160270B2 (en) * | 2001-03-26 | 2007-01-09 | Curon Medical, Inc. | Systems and methods employing a bite block insert for positioning and stabilizing external instruments deployed within the body |
US6699243B2 (en) * | 2001-09-19 | 2004-03-02 | Curon Medical, Inc. | Devices, systems and methods for treating tissue regions of the body |
-
2000
- 2000-09-07 JP JP2001521247A patent/JP2003508150A/en not_active Withdrawn
- 2000-09-07 CA CA002388376A patent/CA2388376A1/en not_active Abandoned
- 2000-09-07 US US10/070,465 patent/US6733495B1/en not_active Expired - Lifetime
- 2000-09-07 WO PCT/US2000/040881 patent/WO2001017453A2/en not_active Application Discontinuation
- 2000-09-07 EP EP00978878A patent/EP1211984A2/en not_active Withdrawn
- 2000-09-07 AU AU16290/01A patent/AU1629001A/en not_active Abandoned
-
2002
- 2002-08-15 US US10/219,798 patent/US6994704B2/en not_active Expired - Lifetime
-
2004
- 2004-03-03 US US10/792,423 patent/US20040172016A1/en not_active Abandoned
-
2005
- 2005-12-12 US US11/299,955 patent/US7922715B2/en not_active Expired - Fee Related
-
2006
- 2006-12-14 US US11/638,958 patent/US20070093879A1/en not_active Abandoned
-
2010
- 2010-11-12 US US12/927,353 patent/US9155583B2/en not_active Expired - Fee Related
-
2015
- 2015-09-25 US US14/866,632 patent/US9925000B2/en not_active Expired - Fee Related
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4858615A (en) * | 1981-11-10 | 1989-08-22 | Sentron V.O.F. | Catheter sensor and memory unit |
US5383874A (en) * | 1991-11-08 | 1995-01-24 | Ep Technologies, Inc. | Systems for identifying catheters and monitoring their use |
US5651780A (en) * | 1991-11-08 | 1997-07-29 | Ep Technologies, Inc. | Systems for identifying catheters and monitoring their use |
US5743903A (en) * | 1991-11-08 | 1998-04-28 | Ep Technologies, Inc. | Cardiac ablation systems and methods using tissue temperature monitoring and control |
US6165169A (en) * | 1994-03-04 | 2000-12-26 | Ep Technologies, Inc. | Systems and methods for identifying the physical, mechanical, and functional attributes of multiple electrode arrays |
US5742718A (en) * | 1996-08-13 | 1998-04-21 | Eclipse Surgical Technologies, Inc. | Proprietary fiber connector and electronic security system |
US5848969A (en) * | 1996-10-28 | 1998-12-15 | Ep Technologies, Inc. | Systems and methods for visualizing interior tissue regions using expandable imaging structures |
US6106460A (en) * | 1998-03-26 | 2000-08-22 | Scimed Life Systems, Inc. | Interface for controlling the display of images of diagnostic or therapeutic instruments in interior body regions and related data |
US20020198519A1 (en) * | 1999-05-04 | 2002-12-26 | Curon Medical, Inc. | Unified systems and methods for controlling use and operation of a family of different treatment devices |
US6391024B1 (en) * | 1999-06-17 | 2002-05-21 | Cardiac Pacemakers, Inc. | RF ablation apparatus and method having electrode/tissue contact assessment scheme and electrocardiogram filtering |
US6387092B1 (en) * | 1999-09-07 | 2002-05-14 | Scimed Life Systems, Inc. | Systems and methods to identify and disable re-used single use devices based on time elapsed from first therapeutic use |
US6464689B1 (en) * | 1999-09-08 | 2002-10-15 | Curon Medical, Inc. | Graphical user interface for monitoring and controlling use of medical devices |
US20020193787A1 (en) * | 2000-01-31 | 2002-12-19 | Curon Medical, Inc. | Graphical user interface for monitoring and controlling use of medical devices |
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US8105323B2 (en) | 1998-10-23 | 2012-01-31 | Covidien Ag | Method and system for controlling output of RF medical generator |
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US8398631B2 (en) | 1999-11-16 | 2013-03-19 | Covidien Lp | System and method of treating abnormal tissue in the human esophagus |
US8012149B2 (en) | 1999-11-16 | 2011-09-06 | Barrx Medical, Inc. | Methods and systems for determining physiologic characteristics for treatment of the esophagus |
US8876818B2 (en) | 1999-11-16 | 2014-11-04 | Covidien Lp | Methods and systems for determining physiologic characteristics for treatment of the esophagus |
US7993336B2 (en) | 1999-11-16 | 2011-08-09 | Barrx Medical, Inc. | Methods and systems for determining physiologic characteristics for treatment of the esophagus |
US9039699B2 (en) | 1999-11-16 | 2015-05-26 | Covidien Lp | Methods and systems for treatment of tissue in a body lumen |
US9597147B2 (en) | 1999-11-16 | 2017-03-21 | Covidien Lp | Methods and systems for treatment of tissue in a body lumen |
US8377055B2 (en) | 1999-11-16 | 2013-02-19 | Covidien Lp | Methods and systems for determining physiologic characteristics for treatment of the esophagus |
US9555222B2 (en) | 1999-11-16 | 2017-01-31 | Covidien Lp | Methods and systems for determining physiologic characteristics for treatment of the esophagus |
US7749217B2 (en) | 2002-05-06 | 2010-07-06 | Covidien Ag | Method and system for optically detecting blood and controlling a generator during electrosurgery |
US7907643B2 (en) | 2002-07-25 | 2011-03-15 | Angiodynamics, Inc. | Laser system |
US8016824B2 (en) | 2002-07-25 | 2011-09-13 | Covidien Ag | Electrosurgical pencil with drag sensing capability |
US20040092927A1 (en) * | 2002-11-05 | 2004-05-13 | Podhajsky Ronald J. | Electrosurgical pencil having a single button variable control |
US8128622B2 (en) | 2002-11-05 | 2012-03-06 | Covidien Ag | Electrosurgical pencil having a single button variable control |
US8523855B2 (en) | 2002-12-10 | 2013-09-03 | Covidien Ag | Circuit for controlling arc energy from an electrosurgical generator |
US7824400B2 (en) | 2002-12-10 | 2010-11-02 | Covidien Ag | Circuit for controlling arc energy from an electrosurgical generator |
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US8298223B2 (en) | 2003-05-01 | 2012-10-30 | Covidien Ag | Method and system for programming and controlling an electrosurgical generator system |
US8080008B2 (en) | 2003-05-01 | 2011-12-20 | Covidien Ag | Method and system for programming and controlling an electrosurgical generator system |
US8303580B2 (en) | 2003-05-01 | 2012-11-06 | Covidien Ag | Method and system for programming and controlling an electrosurgical generator system |
US8012150B2 (en) | 2003-05-01 | 2011-09-06 | Covidien Ag | Method and system for programming and controlling an electrosurgical generator system |
US8267929B2 (en) | 2003-05-01 | 2012-09-18 | Covidien Ag | Method and system for programming and controlling an electrosurgical generator system |
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US8808161B2 (en) | 2003-10-23 | 2014-08-19 | Covidien Ag | Redundant temperature monitoring in electrosurgical systems for safety mitigation |
US8647340B2 (en) | 2003-10-23 | 2014-02-11 | Covidien Ag | Thermocouple measurement system |
US8104956B2 (en) | 2003-10-23 | 2012-01-31 | Covidien Ag | Thermocouple measurement circuit |
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US8192426B2 (en) | 2004-01-09 | 2012-06-05 | Tyco Healthcare Group Lp | Devices and methods for treatment of luminal tissue |
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US8390455B2 (en) | 2005-02-08 | 2013-03-05 | Abbott Diabetes Care Inc. | RF tag on test strips, test strip vials and boxes |
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US8358210B2 (en) | 2005-02-08 | 2013-01-22 | Abbott Diabetes Care Inc. | RF tag on test strips, test strip vials and boxes |
US8115635B2 (en) | 2005-02-08 | 2012-02-14 | Abbott Diabetes Care Inc. | RF tag on test strips, test strip vials and boxes |
US8223021B2 (en) | 2005-02-08 | 2012-07-17 | Abbott Diabetes Care Inc. | RF tag on test strips, test strip vials and boxes |
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US9522032B2 (en) | 2005-10-21 | 2016-12-20 | Covidien Ag | Circuit and method for reducing stored energy in an electrosurgical generator |
US8702695B2 (en) | 2005-11-23 | 2014-04-22 | Covidien Lp | Auto-aligning ablating device and method of use |
US7959627B2 (en) | 2005-11-23 | 2011-06-14 | Barrx Medical, Inc. | Precision ablating device |
US9918794B2 (en) | 2005-11-23 | 2018-03-20 | Covidien Lp | Auto-aligning ablating device and method of use |
US7997278B2 (en) | 2005-11-23 | 2011-08-16 | Barrx Medical, Inc. | Precision ablating method |
US8702694B2 (en) | 2005-11-23 | 2014-04-22 | Covidien Lp | Auto-aligning ablating device and method of use |
US9179970B2 (en) | 2005-11-23 | 2015-11-10 | Covidien Lp | Precision ablating method |
US9918793B2 (en) | 2005-11-23 | 2018-03-20 | Covidien Lp | Auto-aligning ablating device and method of use |
US8241278B2 (en) | 2005-12-12 | 2012-08-14 | Covidien Ag | Laparoscopic apparatus for performing electrosurgical procedures |
US7947039B2 (en) | 2005-12-12 | 2011-05-24 | Covidien Ag | Laparoscopic apparatus for performing electrosurgical procedures |
US8475447B2 (en) | 2006-01-24 | 2013-07-02 | Covidien Ag | System and method for closed loop monitoring of monopolar electrosurgical apparatus |
US8202271B2 (en) | 2006-01-24 | 2012-06-19 | Covidien Ag | Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling |
US8187262B2 (en) | 2006-01-24 | 2012-05-29 | Covidien Ag | Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling |
US8147485B2 (en) | 2006-01-24 | 2012-04-03 | Covidien Ag | System and method for tissue sealing |
US8663214B2 (en) | 2006-01-24 | 2014-03-04 | Covidien Ag | Method and system for controlling an output of a radio-frequency medical generator having an impedance based control algorithm |
US8685016B2 (en) | 2006-01-24 | 2014-04-01 | Covidien Ag | System and method for tissue sealing |
US7972328B2 (en) | 2006-01-24 | 2011-07-05 | Covidien Ag | System and method for tissue sealing |
US9642665B2 (en) | 2006-01-24 | 2017-05-09 | Covidien Ag | Method and system for controlling an output of a radio-frequency medical generator having an impedance based control algorithm |
US7927328B2 (en) | 2006-01-24 | 2011-04-19 | Covidien Ag | System and method for closed loop monitoring of monopolar electrosurgical apparatus |
US10582964B2 (en) | 2006-01-24 | 2020-03-10 | Covidien Lp | Method and system for controlling an output of a radio-frequency medical generator having an impedance based control algorithm |
US9186200B2 (en) | 2006-01-24 | 2015-11-17 | Covidien Ag | System and method for tissue sealing |
US8216223B2 (en) | 2006-01-24 | 2012-07-10 | Covidien Ag | System and method for tissue sealing |
US8267928B2 (en) | 2006-01-24 | 2012-09-18 | Covidien Ag | System and method for closed loop monitoring of monopolar electrosurgical apparatus |
US7651493B2 (en) | 2006-03-03 | 2010-01-26 | Covidien Ag | System and method for controlling electrosurgical snares |
US7972332B2 (en) | 2006-03-03 | 2011-07-05 | Covidien Ag | System and method for controlling electrosurgical snares |
US7648499B2 (en) | 2006-03-21 | 2010-01-19 | Covidien Ag | System and method for generating radio frequency energy |
US7651492B2 (en) | 2006-04-24 | 2010-01-26 | Covidien Ag | Arc based adaptive control system for an electrosurgical unit |
US9119624B2 (en) | 2006-04-24 | 2015-09-01 | Covidien Ag | ARC based adaptive control system for an electrosurgical unit |
US8556890B2 (en) | 2006-04-24 | 2013-10-15 | Covidien Ag | Arc based adaptive control system for an electrosurgical unit |
US8668688B2 (en) | 2006-05-05 | 2014-03-11 | Covidien Ag | Soft tissue RF transection and resection device |
US8753334B2 (en) | 2006-05-10 | 2014-06-17 | Covidien Ag | System and method for reducing leakage current in an electrosurgical generator |
US7731717B2 (en) | 2006-08-08 | 2010-06-08 | Covidien Ag | System and method for controlling RF output during tissue sealing |
US8034049B2 (en) | 2006-08-08 | 2011-10-11 | Covidien Ag | System and method for measuring initial tissue impedance |
US8231616B2 (en) | 2006-09-28 | 2012-07-31 | Covidien Ag | Transformer for RF voltage sensing |
US7794457B2 (en) | 2006-09-28 | 2010-09-14 | Covidien Ag | Transformer for RF voltage sensing |
US8641711B2 (en) | 2007-05-04 | 2014-02-04 | Covidien Lp | Method and apparatus for gastrointestinal tract ablation for treatment of obesity |
US9993281B2 (en) | 2007-05-04 | 2018-06-12 | Covidien Lp | Method and apparatus for gastrointestinal tract ablation for treatment of obesity |
US8777941B2 (en) | 2007-05-10 | 2014-07-15 | Covidien Lp | Adjustable impedance electrosurgical electrodes |
US10575902B2 (en) | 2007-06-22 | 2020-03-03 | Covidien Lp | Electrical means to normalize ablational energy transmission to a luminal tissue surface of varying size |
US8784338B2 (en) | 2007-06-22 | 2014-07-22 | Covidien Lp | Electrical means to normalize ablational energy transmission to a luminal tissue surface of varying size |
US9198713B2 (en) | 2007-06-22 | 2015-12-01 | Covidien Lp | Electrical means to normalize ablational energy transmission to a luminal tissue surface of varying size |
US8251992B2 (en) | 2007-07-06 | 2012-08-28 | Tyco Healthcare Group Lp | Method and apparatus for gastrointestinal tract ablation to achieve loss of persistent and/or recurrent excess body weight following a weight-loss operation |
US9839466B2 (en) | 2007-07-06 | 2017-12-12 | Covidien Lp | Method and apparatus for gastrointestinal tract ablation to achieve loss of persistent and/or recurrent excess body weight following a weight loss operation |
US8439908B2 (en) | 2007-07-06 | 2013-05-14 | Covidien Lp | Ablation in the gastrointestinal tract to achieve hemostasis and eradicate lesions with a propensity for bleeding |
US9364283B2 (en) | 2007-07-06 | 2016-06-14 | Covidien Lp | Method and apparatus for gastrointestinal tract ablation to achieve loss of persistent and/or recurrent excess body weight following a weight loss operation |
US7834484B2 (en) | 2007-07-16 | 2010-11-16 | Tyco Healthcare Group Lp | Connection cable and method for activating a voltage-controlled generator |
US8004121B2 (en) | 2007-07-16 | 2011-08-23 | Tyco Healthcare Group Lp | Connection cable and method for activating a voltage-controlled generator |
US9314289B2 (en) | 2007-07-30 | 2016-04-19 | Covidien Lp | Cleaning device and methods |
US20090036733A1 (en) * | 2007-07-30 | 2009-02-05 | Michael Wallace | Cleaning device and methods |
US8273012B2 (en) | 2007-07-30 | 2012-09-25 | Tyco Healthcare Group, Lp | Cleaning device and methods |
US8646460B2 (en) | 2007-07-30 | 2014-02-11 | Covidien Lp | Cleaning device and methods |
US8506565B2 (en) | 2007-08-23 | 2013-08-13 | Covidien Lp | Electrosurgical device with LED adapter |
US20090054889A1 (en) * | 2007-08-24 | 2009-02-26 | Gyrus Medical Limited | Electrosurgical system |
US8216220B2 (en) | 2007-09-07 | 2012-07-10 | Tyco Healthcare Group Lp | System and method for transmission of combined data stream |
US8353905B2 (en) | 2007-09-07 | 2013-01-15 | Covidien Lp | System and method for transmission of combined data stream |
US8512332B2 (en) | 2007-09-21 | 2013-08-20 | Covidien Lp | Real-time arc control in electrosurgical generators |
US9271790B2 (en) | 2007-09-21 | 2016-03-01 | Coviden Lp | Real-time arc control in electrosurgical generators |
US8945124B2 (en) | 2007-12-05 | 2015-02-03 | Covidien Lp | Thermal penetration and arc length controllable electrosurgical pencil |
US8235987B2 (en) | 2007-12-05 | 2012-08-07 | Tyco Healthcare Group Lp | Thermal penetration and arc length controllable electrosurgical pencil |
US8663219B2 (en) | 2008-03-31 | 2014-03-04 | Covidien Lp | Electrosurgical pencil including improved controls |
US8636733B2 (en) | 2008-03-31 | 2014-01-28 | Covidien Lp | Electrosurgical pencil including improved controls |
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US8663218B2 (en) | 2008-03-31 | 2014-03-04 | Covidien Lp | Electrosurgical pencil including improved controls |
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US8591509B2 (en) | 2008-03-31 | 2013-11-26 | Covidien Lp | Electrosurgical pencil including improved controls |
US9198720B2 (en) | 2008-03-31 | 2015-12-01 | Covidien Lp | Electrosurgical pencil including improved controls |
US20090259220A1 (en) * | 2008-04-09 | 2009-10-15 | Angiodynamics, Inc. | Treatment Devices and Methods |
US8226639B2 (en) | 2008-06-10 | 2012-07-24 | Tyco Healthcare Group Lp | System and method for output control of electrosurgical generator |
US8162937B2 (en) | 2008-06-27 | 2012-04-24 | Tyco Healthcare Group Lp | High volume fluid seal for electrosurgical handpiece |
US20100153220A1 (en) * | 2008-09-10 | 2010-06-17 | Eco Rebox Llc | Method of reusing shipping and packing materials |
US8486061B2 (en) | 2009-01-12 | 2013-07-16 | Covidien Lp | Imaginary impedance process monitoring and intelligent shut-off |
US8231620B2 (en) | 2009-02-10 | 2012-07-31 | Tyco Healthcare Group Lp | Extension cutting blade |
US10045819B2 (en) | 2009-04-14 | 2018-08-14 | Covidien Lp | Frequency identification for microwave ablation probes |
US10758306B2 (en) | 2009-04-14 | 2020-09-01 | Covidien Lp | Frequency identification for microwave ablation probes |
US8840609B2 (en) | 2010-07-23 | 2014-09-23 | Conmed Corporation | Tissue fusion system and method of performing a functional verification test |
US10278774B2 (en) | 2011-03-18 | 2019-05-07 | Covidien Lp | Selectively expandable operative element support structure and methods of use |
US9943359B2 (en) | 2012-04-30 | 2018-04-17 | Covidien Lp | Limited reuse ablation needles and ablation devices for use therewith |
US10603098B2 (en) | 2013-05-31 | 2020-03-31 | Covidien Lp | Gain compensation for a full bridge inverter |
US9504516B2 (en) | 2013-05-31 | 2016-11-29 | Covidien LLP | Gain compensation for a full bridge inverter |
CN103300918A (en) * | 2013-07-05 | 2013-09-18 | 陈华 | Frequency limiting device and method for disposable electric pettifoggery adopting radio frequency chip |
US9872719B2 (en) | 2013-07-24 | 2018-01-23 | Covidien Lp | Systems and methods for generating electrosurgical energy using a multistage power converter |
US11135001B2 (en) | 2013-07-24 | 2021-10-05 | Covidien Lp | Systems and methods for generating electrosurgical energy using a multistage power converter |
US9636165B2 (en) | 2013-07-29 | 2017-05-02 | Covidien Lp | Systems and methods for measuring tissue impedance through an electrosurgical cable |
US9655670B2 (en) | 2013-07-29 | 2017-05-23 | Covidien Lp | Systems and methods for measuring tissue impedance through an electrosurgical cable |
US11564732B2 (en) | 2019-12-05 | 2023-01-31 | Covidien Lp | Tensioning mechanism for bipolar pencil |
Also Published As
Publication number | Publication date |
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WO2001017453A3 (en) | 2001-09-27 |
WO2001017453A2 (en) | 2001-03-15 |
US6994704B2 (en) | 2006-02-07 |
WO2001017453A9 (en) | 2002-11-14 |
US20160015449A1 (en) | 2016-01-21 |
US20020193787A1 (en) | 2002-12-19 |
US9925000B2 (en) | 2018-03-27 |
EP1211984A2 (en) | 2002-06-12 |
US20060086363A1 (en) | 2006-04-27 |
US7922715B2 (en) | 2011-04-12 |
AU1629001A (en) | 2001-04-10 |
US20070093879A1 (en) | 2007-04-26 |
US9155583B2 (en) | 2015-10-13 |
US6733495B1 (en) | 2004-05-11 |
CA2388376A1 (en) | 2001-03-15 |
JP2003508150A (en) | 2003-03-04 |
US20110098698A1 (en) | 2011-04-28 |
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