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EXCELL NHP Series

 

DIATHERMY UNITS AND ARGON GAS ENHANCED DIATHERMY UNITS FOR MAJOR SURGERY

The new models Excell NHP have been designed according to a “manufacturing philosophy” which privileges the easy and immediate comprehension of all the usage/regulation modes, and at the same time guarantees a wide range of performances, an absolute reproducibility and functioning personalization, as well as a maximum safety and reliability. The series is composed of three models for electro-surgery, Excell NHP-400/D, Excell NHP-350/D, and Excell NHP-250/D, which can all be connected to an independent Argon gas module; there are also two models for electro-surgery and electro-surgery with Argon gas: Excell NHP-400/DA and Excell NHP-250/DA.

 

100 FUNCTION MEMORIES

In order to help the operators and assure the perfect personalization of the performances, the models Excell NHP allow memorizing and then selecting through a simple button 100 complete functioning programs, which include pre-set programs for the general or the laparoscopic surgery, the endoscopic surgery under liquid, the flexible endoscopic surgery, as well as the simple bipolar mode.
For the models equipped with the Argon gas function, there are also the programs for the usage in general or laparoscopic surgery, as well as the programs for flexible endoscopy with or without the Argon gas.

 

A WIDE RANGE OF CURRENTS TO SATISFY ALL THE OPERATING NEEDS

The Excell NHP units have got 17 currents: 10 for the monopolar usage, and 7 for the bipolar usage.

Three for the monopolar cut, with self regulation ADC System – constant power and starting impulse control

Pure, non modulated sinusoidal current for the cut without any coagulating effect;

Blend 1, modulated and pulsed sinusoidal current for the cut with normal coagulating effect.

These 2 currents, thanks to specific auto-check software, are perfect for all kinds of usage: normal or specialist surgery, laparoscopy, TUR and vaporization, as well as all the applications under liquid.

Blend 2, modulated and pulsed current for the cut with a strong coagulating effect spray type for surgery or laparoscopy.

 

Three for the monopolar cut, with self regulation APC System – constant voltage and starting impulse control

Auto Pure, non modulated sinusoidal current for the cut without any coagulating effect;

Auto Blend, modulated and pulsed sinusoidal current for the cut with normal coagulating effect;

Auto Endo, current with alternating phases of cut and coagulation for the flexible endoscopy.

These currents are perfect for the normal surgery, the laparoscopy and the flexible endoscopy, notably when a very delicate effect with a minimum superficial necrosis is desired.

 

Four for the monopolar coagulation with self regulation ADC System – constant power

Fulg Forced modulated high voltage current with an optimum superficial and deep efficacy, which is suitable both for the direct usage with an active small section electrode and for the indirect usage through an insulated coagulation forceps.
It is perfect also to obtain a cut with a strong coagulating effect;

PinPoint-Contact, modulated medium voltage current, which is very similar to the previous one, but with a more delicate effect;

Soft, modulated low voltage current with a strong deep effect, and no superficial carbonization.
It is perfect for the direct usage with coagulation electrodes, or for the indirect usage through an insulated coagulation forceps;

Spray, modulated and pulsed very high voltage current, with a very strong superficial effect and a low penetration into the tissues. It is perfect for the direct usage without any contact, with small section electrodes.

 

Two for the bipolar cut, with self regulation ADC System – constant power and Starting impulse control

Pure, non modulated pulsed sinusoidal current for the cut;

Blend, modulated and pulsed sinusoidal current for the cut with coagulating effect. With laparoscopic forceps, it is also suitable to obtain a strong coagulating effect only.
Thanks to some specific auto-check software, these currents are perfect for all kinds of usage: normal or specialist surgery, laparoscopy, TUR and all other bipolar applications with saline solution.

Thanks to some specific auto-check software, these currents are perfect for all kinds of usage: normal or specialist surgery, laparoscopy, TUR and all other bipolar applications with saline solution.

 

Two for the bipolar coagulation, with self regulation APC System – constant voltage

Micro CV, non modulated low voltage current for very delicate coagulations with Soft / Micro Precise effect, a minimum superficial carbonization, and no sticking on the tissues;

Micro Auto, identical to Micro CV, but with Auto Start / Auto Stop Impedance Sensing and Start Delay adjustable from 0 to 5 sec. It is perfect for the usage with manual activation, and no need of special forceps with switch device.

 

Two for the bipolar coagulation, with self regulation ADC System – constant power

Micro HC, current with Standard Forced effect in order to rapidly coagulate the vascularized points and the bleedings during the procedures with saline solution, and use instruments with tips of big dimensions;

Macro, modulated and pulsed current with a stronger effect than the Micro HC current.

 

One for the coagulation / sealing of big vessels, with self regulation ADC System – constant power

Seal HC, pulsed current to coagulate and close the big vessels with a minimum superficial carbonization and no sticking of the tissues. It can be activated through a pedal foot-switch, and thanks to the Auto Stop Impedance Sensing system it is very efficacious and easy to use, in laparoscopy too.

 

 

COMPLETE OUTPUT POWER CONTROL

In order to guarantee the best possible efficiency and the minimum side effects, all the output currents are completely self controlled through a micro-processor with three different systems:

ADC System – constant power, which automatically adjusts the powers by verifying the voltage and the current, according to a continuous feed-back in real time (7,000 checks/sec) between the unit and the patient tissues, as well as between the electrode and its rapidity of sliding on the tissues. This system is also necessary to intervene in an efficacious way on many types of tissue or under liquid with the lowest possible powers.

APC System – constant voltage, which automatically adjusts the powers, by keeping the voltage – and so the currents electric arc – constant, according to a continuous feed-back in real time (7,000 checks/sec) between the unit and the patient tissues, as well as between the electrode and its rapidity of sliding on the tissues. This system is also necessary to intervene in an efficacious and very delicate way on the operating point with the minimum superficial necrosis.

Starting impulse control, which electronically checks the starting pulse of the cut currents, in order to guarantee the maximum efficacy with the lowest possible powers.

 

ALL POSSIBLE USAGE MODES, TWO MONOPOLAR OUTPUTS AND TWO BIPOLAR OUTPUTS

All models are equipped with: two monopolar outputs, which can be used at the same time by two different operators through the Twin activation device; two bipolar outputs, which are very useful and common today, notably in laparoscopy.

The two monopolar outputs can be activated by three modes:

• Both of them by the hand-switches placed on the electrodes holder handles, or by the double pedal foot-switch.

• One by the hand-switches placed on the electrodes holder handle, and the other by the double pedal foot-switch.

For the usage with the Argon gas module, into the models Excell NHP-400/DA and Excell NHP-250/DA, the two outputs can also be activated as follows:

• Both of them by the double pedal foot-switch, or both of them by the hand-switches placed on the electrodes holder handles: one is for electro-surgery, and the other one for electro-surgery with Argon gas.

The two bipolar outputs can always be activated independently from the monopolar ones, by three modes:

• For the cut or the coagulation, by the double pedal foot-switch.

• For the coagulation, by selecting the Micro Auto current, through the automatic Auto Start / Auto Stop Impedance Sensing, with a starting delay adjustable from 0 to 5 sec.

• For the coagulation and the sealing of the big vessels, by selecting the Seal HC current, with activation by the pedal foot-switch and automatic Auto Stop Impedance Sensing.

 

 

BETTER PERFORMANCES, MAXIMUM SAFETY

The Excell models are equipped with an auto-check system at double microprocessor that is the Master / Sleeve System with two Microprocessors at 32 bit. It is characterized by an interconnection in feed-back, a serial communication, as well as a double memorization of the functioning data with validity control CRC at 16 bit, which has got a big operational capacity and can optimize the execution rapidity of all the different functions, which are necessary to guarantee the maximum safety and functionality.

Auto-Check, complete auto-check of the hardware / software by:

Main Auto-Check, main auto-diagnosis procedure at the switching-on.

Standard Auto-Check, continuous check of all the functioning parameters during the sage.

• Immediate interruption of the functioning with contemporary alarm signal for the operators through specific Error Codes, just in case the auto-diagnosis systems find out some problems or damages to the General Error Control, that is the general functioning / activation errors, or to the Output Error Control, that is the delivery of the powers, in order to avoid the risk of a sudden and dangerous output of a power which is higher than the selected one.

• Memorization of the last 32 Error codes, to favour the checks and the technical assistance.

 

Output Power Control, the complete auto-check of the output powers (see above).

HF Leakage Control, check of the high frequency leakage currents to earth.

The system, through a specific circuit, always verifies the leakage currents to hearth, and, just in case of dangerous situations - like the contact between the patient and the metallic parts of the operating table -, it keeps them within the safety limits, by automatically decreasing the output powers and by giving an alarm signal.

Argon section Auto-Check into the models Excell NHP-400/DAand Excell NHP-250/DA

At the switching on, the Argon section performs a complete auto-diagnosis on its circuit about what follows: mains supply, pressure, loss or absence of gas.

 

ELECTROSURGERY WITH ARGON GAS

The models Excell NHP-400/D, Excell NHP-350/D and Excell NHP-250/D can be used with an external module for the Argon gas, while the models Excell NHP-400/DA and Excell NHP- 250/DA are already complete with all the necessary functions for the electro-surgical cut and coagulation with this type of gas; therefore, they guarantee big advantages if compared to the systems composed by the electro-surgical unit and the separate Argon module.

The absence of interface devices, a bigger simplicity of functioning, the possibility to connect and use at the same time the accessories for electro-surgery and electro-surgery with Argon gas, the automatic output of the right modulated and pulsed spray coagulation when the Argon gas coagulation is activated independently from the type of coagulation selected for the simple electro-surgery, as well as the self compensation of the gas flow Constant Flow System according to the diameter of the electrodes, with a perfect control of the penetration depth, make this technical “solution” very efficacious and appreciated by all the operators who, in general or specialist surgery, in laparoscopy or in flexible endoscopy, ask for those particular effects that are typical of

the Argon gas coagulation. Among them, we can remember the rapid haemostasis of big bleeding areas without any contact nor sticking of the electrode on the tissues, a minimum deep effect (max. 3mm), a low risk of perforation of the tissues, and finally the absence of smokes and smells.

 

NEUTRAL ELECTRODE CONTROL CIRCUIT “NPCC SYSTEM”

The Excell models are equipped with a circuit that can verify the connection / contact of the neutral electrodes “non Split” type with a single section and “Split” type with a double section.

With the “non Split” electrodes, the system checks the right connection of the cable: if it is broken / non well connected, the circuit interrupts the delivery of the power and gives a luminous acoustic alarm signal.

With the “Split” electrodes, the system also checks the quality of the contact between the electrode and the patient tissues, by giving progressive alarm signals. If only 80% of the adult standard electrode surface is well connected, it gives the first luminous alarm signal; if the good contact of the electrode decreases to 50%, it gives another luminous alarm signal and automatically reduces the output power to max. 200W. Finally, if the contact is dangerous or the cable is broken / non well connected, the circuit interrupts the delivery of the power with a complete acoustic and luminous alarm signal.

 

VERY EASY TO USE

The control panels, which are completely smooth to guarantee the maximum cleaning, are divided into colored areas that identify all the different functions and contain the selection / regulation devices, the luminous signals of activation or alarm, as well as all the visible displays which show the selected powers to the operators.

In order to favour the connection of the accessories, all the outputs are equipped with luminous indicators that light according to the selected functioning modes.

 

STATE-OF-THE-ART MANUFACTURING TECHNOLOGY

The manufacturing technology has been studied with extreme care, in order to guarantee the maximum reliability. The generator of the high frequency currents is Mosfet powered damped oscillator with switching supply type; it has no problem of heating for a usage without limits of time. The unit has got interchangeable boards to favor the technical assistance, and before entering into the market it must follow severe test procedures, with 100 functioning hours at maximum power. In order to facilitate the maintenance, the machine memorizes the 32 last Error Codes, and it is equipped with a state-of-the-art software system which allows its on-site calibration by using the front panel only.

 

ON-SITE CALIBRATION AND UPGRADE SOFTWARE TO GUARANTEE VERY HIGH PERFORMANCES

Thanks to the new software system, the units can be calibrated on-site, by using the front panel only; moreover, they have been studied to allow an eventual future updating of the software technology, through a simple serial port connected to a PC.

 

FOOT-SWITCH PEDALS

The choice of the pedal foot-switches is extremely flexible, according to the operators’ preferences. As a matter of fact, the Excell units can be used with one double pedal footswitch, which allows the activation of the monopolar or bipolar functions, and with a second double pedal foot-switch, which is indicated for the independent activation of the bipolar functions only.

 

 

ELIMINATION AND FILTERING OF THE SMOKES

The units can be equipped with automatic activation aspirators that guarantee the efficacious and silent elimination of smokes or electro-surgical aerosol; they reduce not only the risks of a viral and bacterial contamination into the whole operating theatre, but they also solve the big problem of the visibility on the operating field, which is fundamental for the surgeons, notably during the laparoscopic procedures.

 


 

TECHNICAL FEATURES:

 

Electronic Generator compliant with: IEC 601-1 and IEC 60601-2-2 Standards.

Classification 93/42 EEC: IIB - Approval 93/42 EEC: 187 MDD-IMQ 0051.

Electromagnetic Compatibility: Unit is compliant with IEC 60601-1-2,

Test report IMQ nr. 80SF00709/1, 80SF00709/2.

Classification and Type IEC 601-1: Class I, Type CF.

Typical LF leakage currents: on the patient: 4 A = 0.004mA,

Into the enclosure: 1 A = 0.001mA, to earth: 30 A = 0.3mA.

Output Circuit according to IEC 60601-2-2:

“Floating” insulated at low and high frequencies, protected against the use of the defibrillator.

Typical high frequency leakage currents: 100mA.

ALSA Quality System: Approved ISO 9001:2000 and ISO 13485:2003.

Monopolar and bipolar working frequency: 440 kHz 5%.

 

Functioning Control System: with double microprocessor.

Master/Sleeve System with 2 microprocessors at 32 bit with interconnection in feed-back with serial communication and double memorization of the functioning data with validity control CRC at 16 bit, which performs hat follows:

Auto-Check, complete self control of the hardware / software with:

Main Auto-Check, main auto-diagnosis procedure at the switching on.

Standard Auto-Check, continuous auto-diagnosis during the whole functioning.

• Immediate interruption of the functioning (in less than 100millisec) with contemporary alarm signal to the operators through specific Error Codes, when the auto-diagnosis systems find out some problems or failures about:

a. General Error Control: that is the general functioning or the activation errors.

b. Output Error Control: that is the delivery of the powers, in order to eliminate the risk of a sudden and dangerous output of a power which is higher than the selected one.

• Memorization of the 32 last Error Codes in order to facilitate the check and the technical assistance.

 

Output Power Control, complete self regulation by microprocessors of the output powers through three different modes:

ADC System – constant power, which automatically auto-adjusts the powers by verifying the voltage and the current, according to a continuous feed-back in real time (7,000 checks/sec) between the unit and the patient tissues, as well as between the electrode and its rapidity of sliding on the tissues. This system is also necessary to intervene in an efficacious way on many types of tissue or under liquid with the lowest possible powers.

APC System – constant voltage, which automatically auto-adjusts the powers, by keeping the voltage – and so the currents electric arc - constant, according to a continuous feed-back in real time (7,000 checks/sec) between the unit and the patient tissues, as well as between the electrode and its rapidity of sliding on the tissues. This system is also necessary to intervene in an efficacious and very delicate way on the operating point with the minimum superficial necrosis.

Starting impulse control, which electronically checks the starting pulse of the cut currents, in order to guarantee the maximum efficacy with the lowest possible powers.

HF Leakage control, check of the high frequency leakage currents to earth.

The system, through a specific circuit, always verifies the leakage currents to hearth, and, just in case of dangerous situations, it keeps them within the safety limits, by automatically decreasing the output powers and by giving an alarm signal.

Argon section Auto-Check, into the models Excell NHP-400/DA and Excell NHP-250/DA, complete auto-check of the Argon gas circuit.

At the switching on, the Argon section performs a complete auto-diagnosis on its circuit about what follows: mains supply, pressure, loss or absence of gas.

 

Functioning memorization

100 memorisable programs; among them, some pre-set programs for general or laparoscopic surgery, endoscopic surgery under liquid and flexible endoscopic surgery, as well as for the bipolar use only.

Into the models Excell NHP-400/DA and Excell NHP-250/DA, which are already equipped with the Argon gas functions, there are also pre-set programs for the usage in general or laparoscopic surgery and flexible endoscopy with or without the Argon gas.

 

Micro / macro powers adjusting by push-buttons with low / fast changing and steps.

Monopolar: 0/30W=1W, 30/100W=2W, 100/200W=5W, from 200W=10W.

Bipolar: 0/10W=0,5W, 10/30W=1W, 30/100W=2W, from 100W=5W.

Selected powers control: by displays.

 

Outputs activation

All the models are equipped with two monopolar outputs and two bipolar outputs.

The two monopolar outputs can be used at the same time by two different operators with Twin activation device, as follows:

• Both of them by the double pedal foot-switch.

• Both of them by the hand switches placed on the electrodes holder handles.

• One by hand switches and one by the double pedal foot-switch.

For the usage with the Argon gas, into the models Excell NHP-400/DAand Excell NHP-250/DA, the two outputs can also be activated as follows:

• Both of them by the double pedal foot-switch: one for the electro-surgery, and one for the electro-surgery with Argon gas.

• Both of them by the hand switches placed on the electrodes holder handles:

One for the electro-surgery and one for the electro-surgery with Argon gas.

The two bipolar outputs can be always activated independently from the monopolar ones, through three modes:

• For the cut or the coagulation, by the double pedal foot-switch.

• For the coagulation, with the Micro Auto current, by the automatic Auto Start / Auto Stop Impedance Sensing device and starting delay adjustable from 0 to 5 sec.

• For the coagulation / sealing of big vessels, with the Seal HC current, by the pedal foot-switch and automatic Auto Stop Impedance Sensing.

 

 

 
 

Contact info: No. 17, 4th St, Ahmad Ghasir Ave. (Ex Bokharest St.), Tehran 1514647915, Iran

Tel : +98 21 8852 1207

Fax : +98 21 8852 1209


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