CN2301983Y

CN2301983Y - Improvement for displaying device of contact area of electric knife device conductivity plate

Info

Publication number: CN2301983Y
Application number: CN 97220532
Authority: CN
Inventors: 刘英雄
Original assignee: YUESHENG INSTRUMENT FACTORY CO Ltd
Current assignee: YUESHENG INSTRUMENT FACTORY CO Ltd
Priority date: 1997-08-07
Filing date: 1997-08-07
Publication date: 1998-12-30
Anticipated expiration: 2007-08-07

Abstract

The utility model relates to an improvement for a displaying device of the contact area of an electric knife device conductivity plate, which comprises a power supply position and a displaying position. Branch circuits are formed at the power supply position by the primary coil of a transformer, one branch circuit is connected to a radio frequency oscillator, and the other branch circuit is used as the power supply for the displaying position. The secondary coil of the transformer is directly connected to a bipolar circuit electrode plate, and the displaying position is composed of a single-chip processor and a plurality of displaying units. By sensing the resistance value of a human body and displaying the resistance value by a displaying device, the utility model can display whether the resistance value is in safe state or not more clearly, and can further improve the safety of users and human bodies to be tested.

Description

The display device improvement of electric knife device conductive plate contact area

This utility model is the display device improvement of relevant a kind of electric knife device conductive plate contact area, and a kind of resistance value with detection is manifested by display device, reaches tested human body and the safer design of user with it.

Press, early stage surgical operation, be to carry out with the therapentic part of scalpel cutting human body by medical personnel, and the Xia Daochu of therapentic part, promptly must be by various precision equipments such as X-ray, ultrasound wave etc., do further to confirm, avoiding taking place the awkward situation of cutter position mistake down, and behind cutter down, sufferer will be bled in a large number, for avoiding blood to hinder medical personnel's sight line, promptly must stop blooding, and this haemostatic effect is not good, often causes operating time long with the sterilization Cotton Gossypii, the degree of difficulty of a large amount of blood transfusions or increase operation etc., therefore for solving this phenomenon, the research and development of electric knife loop electrode plate are arranged just.Traditional electric knife loop electrode plate is by a slice metallic plate, the effect that only has cutting, and can't be applied to the sensing of impedance, further research and development again then, the electric knife loop electrode plate of the second filial generation utilizes the low-voltage of high frequency to be contacted with human body, measure the resistance value of human body, reflect the situation of human body by this resistance value, and when in operation, cutting, and has an effect of blood coagulation, no longer be subjected to blood to flow out the carrying out that influences operation in a large number when performing the operation and make, precisely because be to manifest measurement result to jump the lamp formula, medical personnel can't confirm further whether the resistance value of human body is safe state, and only can further confirm with the experience of itself, this there is no the safety guarantee of use for medical personnel that use and tested human body.

The purpose of this utility model is, a kind of display device improvement of relevant electric knife device conductive plate contact area is provided, and it can make whether medical personnel can clearer grasp resistance value be safe state, to promote tested human body and safety user.

Edge this, because commonly use the shortcoming of electric knife loop electrode plate, satisfy the scientific principle knowledge of utilization itself and practical experience for many years, concentrate on studies, finally develop a kind of display device improvement of electric knife device conductive plate contact area, comprising power supply position and display area are arranged, it is characterized in that: this power supply position is formed with one along separate routes via the primary coil of a transformator, wherein one is to be connected to radio-frequency oscillator to produce a high frequency frequency along separate routes, another is the power supply of supply display area along separate routes, and the secondary coil of transformator then is directly connected in bipolar loop electrode plate; The display area is made up of a monolithic processor and connected several display units; Wherein this display unit can be seven-segment display.

According to aforementioned, this utility model mainly is the digital display structure improvement at bipolar loop electrode plate, this bipolar loop electrode plate is the logical low-voltage that goes up high frequency on sheet metal, make metallic plate be contacted with human body, use the resistance value of sensing human body, checking out the situation of human body, and this resistance value and transmission display device manifest, make whether medical personnel can clearer grasp resistance value be safe state, to promote the safety of tested human body and user.

For enabling further to understand the purpose of this utility model, feature and effect, now by following specific embodiment, and conjunction with figs., this utility model is described in detail, wherein:

Fig. 1 is a block chart of the present utility model;

Fig. 2 is an axonometric chart of the present utility model;

Fig. 3 is the circuit diagram of this utility model power suppling part part and display device.

As shown in Figure 1, be to be block chart of the present utility model; Electric knife device 40 mainly is the therapeutic effect that can reach cutting and blood coagulation, be to the safety of sufferer and medical personnel's operating process part and parcel very, the principle that it used is to place human body to detect A by bipolar loop electrode plate 20 (as shown in Figure 2), the value that measured resistance value and medical personnel the are set B C that compares, to determine whether safety of resistance value, transmission display position D demonstrates this resistance value with numeral again, make medical personnel can further grasp the speciality of human body, and the safety of human body and user.

As Fig. 2, shown in Figure 3, show axonometric chart of the present utility model respectively, and the circuit diagram of power suppling part part and display device; The left side is power supply of the present utility model position as shown in Figure 3, and right-hand part is the display area.Wherein:

Power supply position 10 is to provide 12V unidirectional current by the outside, primary coil P via a transformator 11 is formed with one along separate routes, wherein one is to be connected to the radio-frequency oscillator 12 that transistor Q1 and resistance, electric capacity are formed along separate routes, to produce a high frequency frequency, another is along separate routes then via the power supply of a commutation diode as the supply display area, the secondary coil S of transformator 11 then is directly connected in bipolar loop electrode plate 20, directly is directed to bipolar loop electrode plate 20 with the high frequency low voltage that power supply position 10 is produced.

Display area 30 is made up of a monolithic processor 31 (adopting numbering PIC18C71 in present embodiment) and several seven-segment displaies 32, it mainly is the impedance that utilizes 20 sensings of bipolar loop electrode plate, the VD value (DCOUT) that is supplied to display area 30 is changed, carry out computing by monolithic processor 31, and convert digital signal to, be connected in a driving transistors Q2, demonstrate resistance value to drive each seven-segment display 32, Fig. 3 demonstration in present embodiment can be three groups, shows hundred, ten and units of resistance value respectively.

Electric knife device 40 shown in Figure 2 is provided with connecting hole, be the transformator 11 secondary coil S shown in the circuit diagram, directly be linked to the two ends of bipolar loop electrode plate 20 by lead 41, the low pressure that promptly between the utmost point and the utmost point, adds high frequency, its running voltage is about 0-4V, when bipolar loop electrode plate 20 is open circuit is 4V, during short circuit 0V, and produce when changes in resistance is arranged is between 0V-4V, the about 75KHz of operating frequency, when bipolar loop electrode plate 20 is open circuit, resistance value in the two poles of the earth electricity is infinitely great, the VD that is supplied to display area 30 is about peak 5.5V, can sense the resistance value at this position of human body when contacting to human body, promptly be equivalent to the secondary coil S of transformator 11 and the sum total of body burden resistance value, promptly make the direct current output valve that is supplied to display area 30 descend, and being contacted with the area and the resistance value of human body, bipolar loop electrode plate 20 is inversely proportional to, be that the bipolar loop electrode plate 20 people's bulk area that contacts is big more, the safety coefficient of electric knife is high more, the direct current output valve is more little, via the computing of monolithic processor 31 and drive each seven-segment display 32, the human body resistance value of institute's sensing can be shown.

In sum, the display device improvement of electric knife device conductive plate contact area provided by the utility model, not only have outside the practical effect, and be new design not seen before, and compared to commonly using anti-stolen lock, have more the enhancement of effect and progressive, so met the novel important document of Patent Law, the whence proposes patent application in accordance with the law.

Below this utility model is done one and describe in detail, only the above only is preferred embodiment of the present utility model, when not limiting the scope that this utility model is implemented.Be that all equalizations of doing according to this utility model application range change and modify etc., all should still belong in this utility model patent covering scope.

Claims

1. the display device of electric knife device conductive plate contact area improvement includes power supply position and display area, it is characterized in that:

This power supply position is formed with one along separate routes via the primary coil of a transformator, wherein one is to be connected to radio-frequency oscillator to produce a high frequency frequency along separate routes, another is the power supply of supply display area along separate routes, and the secondary coil of transformator then is directly connected in bipolar loop electrode plate;

The display area is made up of a monolithic processor and connected several display units.

2. by the display device improvement of the described electric knife device of claim 1 conductive plate contact area, it is characterized in that wherein this display unit can be seven-segment display.