CN1097585A - Infrared medical coagulator - Google Patents
Infrared medical coagulator Download PDFInfo
- Publication number
- CN1097585A CN1097585A CN 93108657 CN93108657A CN1097585A CN 1097585 A CN1097585 A CN 1097585A CN 93108657 CN93108657 CN 93108657 CN 93108657 A CN93108657 A CN 93108657A CN 1097585 A CN1097585 A CN 1097585A
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- China
- Prior art keywords
- circuit
- point
- foot
- light source
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Links
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 11
- 239000010703 silicon Substances 0.000 claims abstract description 11
- 230000001225 therapeutic effect Effects 0.000 claims abstract description 11
- 238000000386 microscopy Methods 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims abstract description 7
- 239000003990 capacitor Substances 0.000 claims description 8
- 230000002146 bilateral effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 2
- -1 polytetrafluoroethylene Polymers 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 2
- 230000002439 hemostatic effect Effects 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 208000032843 Hemorrhage Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000000025 haemostatic effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Abstract
A kind of infrared medical coagulator includes light source, illuminator, light pipe, heat dissipating housing, hold-down nut medicated cap, protective cap, treatment switch, handle and power control circuit.It is characterized in that the light inlet port of light pipe is equipped with the light receiving microscopy of a toroidal.Power control circuit comprises the light source loop of the solid-state relay that is provided with the controllable silicon formula, is provided with the control loop of monostable timer, relay drive circuit and partial rectification, filtering, mu balanced circuit.This design makes this therapeutic instrument circuit reliability height, has improved the service life of light source frequent operation under the pulse condition of switching regulator, has reached rapid high temperature hemostatic purpose simultaneously.
Description
Infrared medical coagulator involved in the present invention is a kind of medical therapeutic Instrument.
Present existing infrared medical coagulator treatment part as shown in Figure 3, the light inlet port of its light pipe is a straight circular cylinder type, this structure is unfavorable for collecting the practical point emission and reflects the part light of the hot spot at second the focus place that accumulates in illuminator greater than the light guide diameter through illuminator, this just makes this part light can not enter light pipe, has wasted part luminous energy.Therefore existing infrared medical coagulator is compared with external like product, and the probe outlet temperature is not high enough, and to inflict heavy losses on the face haemostatic effect not good to hemorrhage.Increased from illuminator in the power control circuit of existing infrared medical coagulator, and be provided with demonstration actual therapeutic time generating circuit and time setting circuit, its circuit as shown in Figure 4.But problem is: 1, do not take to suppress the means of surge current in the power supply, because the light source frequent operation will shorten the service life of light source greatly in the pulse condition of switching regulator; 2, in the circuit because what adopt is common electromagnetic type relay, between transformator and coil electromagnetism formula relay electromagnetic interference is arranged, influence relay work, easily produce misoperation; 3, relay switch electric arc is bigger, has reduced the reliability of circuit; 4, control timing circuit complexity, and the circuit part that main light source is lighted is too simple.In actual therapeutic, timing commonly used only is 1.5～20 seconds, and common rotary-type current potential device can be transferred to this scheduled time scale position always after start, uses that this potentiometer has just had simply, stablizes, reliable advantage.In this case, just get over the formula timing method and seem complicated and inconvenient on the contrary with the rank of band demonstration.
Purpose of the present invention just is to improve shortcoming of the prior art, is not increasing light source power, is not changing under the condition of light pipe size, improves the light ray energy transmission density in the light pipe, so that a kind of infrared coagulator with high temperature hemostatic function to be provided.In power control circuit, adopting controllable silicon is switch and the solid-state relay of forming high reliability simultaneously, and designs the easy self-timing control of a cover, so that a whole set of easy, practical power control circuit to be provided.
Technical scheme of the present invention is carried out in two steps, the improvement of first therapeutic apparatus part, and as shown in Figure 1, it includes light source, illuminator, light pipe, heat dissipating housing, hold-down nut medicated cap, protective cap, treatment switch and handle therapeutic apparatus.Be primarily characterized in that the light inlet port of light pipe used the light receiving microscopy of a loud-speaker type instead.So just, increased the area of light inlet port, made focus place light can both enter light receiving microscopy, after primary event, entered the arrival end of light pipe, as shown in Figure 5, increased the light ray energy transmission density in the light pipe at the inwall of light receiving microscopy.
It two is improvement of power control circuit part for technical scheme among the present invention, as shown in Figure 2.Main transformer B in the circuit
1Former pair of limit incorporate into respectively by Resistor-Capacitor Unit R
1, C
1And R
2, C
2The wave filter of forming; B
1Former limit serial connection controllable silicon SCR
1As on and off switch; B
1Pay limit output through R
2, C
2The wave filter and the D that form
1～D
4Behind the rectification circuit of forming, be connected in series solid-state relay, illuminating lamp LD, the K switch of controllable silicon formula successively
2Form a light source loop.Transformator B
2Former limit and B
1Parallel connection, B
2Pay limit output through D
5～D
8Behind the rectification circuit of forming, successively and meet C
7, serial connection audion T
1And meet R
11, form a control loop through mu balanced circuit and monostable timing circuit thereafter.Monostable timing circuit a ', b ' end output signal enter solid-state relay drive circuit input a, b, and this circuit output signal adds SCR
1The control utmost point drives its conducting, thereby makes main transformer B
1Be switched on.The rectification output end of control loop and main transformer press the outfan of paying the marginal ray resource loop to be in parallel, and promptly the d point in point of the C in the control loop and the light source loop is connected, and the g point of control loop is through R
10Meet audion T
1Base stage, T
1Colelctor electrode meet C point, T
1Emitter stage through h point R
11Connect the i point, the i point connects the negative terminal of rectification output in the control loop, and the C point connects the anode of its output, and the g point connects the negative terminal of rectification output in the light source loop, and the d point is through resistance R
4Connect the anode of rectification output.
The embodiment of the invention is described in detail in conjunction with the accompanying drawings.
Fig. 1, be infrared medical coagulator therapeutic apparatus part-structure sketch map of the present invention,
1, protective cap; 2, hold-down nut medicated cap; 3, light receiving microscopy;
4, heat dissipating housing; 5, illuminator; 6, light source;
7, lamp socket; 8, light source wiring; 9, light pipe;
10, hands handle; 11, treatment switch.
Fig. 2, infrared medical coagulator power control circuit schematic diagram of the present invention;
Fig. 3, existing infrared medical coagulator therapeutic apparatus part-structure sketch map;
Fig. 4, existing infrared medical coagulator power control circuit schematic diagram;
Light transmission sketch map in Fig. 5, the infrared medical coagulator of the present invention, m point source (i.e. first focus);
Distribution of light figure in Fig. 6, the infrared medical coagulator of the present invention, m second focus, O window plane.
Embodiment: the therapeutic apparatus part of infrared medical coagulator of the present invention is as Fig. 1 structure; wherein illuminator adopts craft of gilding to make; to improve the reflection efficiency of illuminator; the material of mirror base adopts polytetrafluoroethylene; heat resisting temperature is reached about 240 ℃; be added with waterproof grommet between protective cap and the light pipe simultaneously, be beneficial to the cleaning of protective cap.
In the present embodiment power control circuit principle as shown in Figure 2, except that aforementioned circuit part, the controllable silicon formula solid-state relay circuit 3 in the circuit of light sources includes bilateral diode D
11, controllable silicon SCR
2, resistance R
3, R
4, R
5And capacitor C
3, C
4SCR wherein
2Be serially connected in the light source loop, its anode connects the anode K point of rectification output, and negative electrode connects illuminating lamp, is d point in the loop; R
4With SCR
2In parallel; R
5, C
4Serial connection back and SCR
2Parallel connection, its R
5K point in the one termination loop, C
4Termination d point; R
3One termination SCR
2Anode, the other end link bilateral diode D successively
11And SCR
2The control utmost point; C
3L point in this circuit of one termination, another termination d point.
Monostable timing circuit 1 in the control loop is by integrated IC
3(LS123), audion T
2, diode D
10, capacitor C
9, C
10, resistance R
13, R
14, adjustable resistance R
12Form.The voltage stabilizing output signal is through C
9Send into this circuit after the filtering.Its IC
3Foot 16 meet C
9An end, circuit output end a ', foot 2, foot 3, foot 3 is through R
14Meet C
9The other end and T
2Emitter stage and foot 14, foot 1, foot 8 meet T
2Emitter stage, R
12A termination circuit outfan a ', the other end meets diode D successively
10And IC
3Foot 15, foot 14 is through C
10Meet diode D
10Negative terminal, foot 13 is through resistance R
13Meet T
2Base stage, T
2Colelctor electrode connection circuit outfan b '.Solid-state relay circuit 2 is by photoelectronic coupler OPC, integrated IC
1(TWH9205), diode D
9, resistance R
6, R
7, R
8And R
9, capacitor C
5, C
6Link.By monostable timing circuit a ', after b ' end output signal is sent into this circuit a, b input, through resistance R
9, diode D
10Act on OPC, again through R
8Meet IC
1Input foot 9, another road of OPC connects C successively
5, R
6And B
1Former limit and R
1An end that is connected, the output signal of IC meets SCR through foot 4
1The control utmost point, IC
1Foot 10,11,13 be connected, foot 9 is through R
7Pin 2 and C
6, C
6Other end pin 7, foot 8 and SCR
1Anode, IC
1Foot 5 meets R
6And C
5An end that is connected.
The work process of power control circuit is: behind power connection voltage, and main transformer B
1Former limit because SCR
1Turn-off no signal output, and transformator B
2Operate as normal, the C point in the light source loop has a high potential at this moment, and behind the R that closes a switch, instantaneous C point is through d, e, f, g, R
10, h, R
11, i constitutes a path, and through R
10, R
11Make audion T
1Base stage produce bias current, thereby make audion T
1Collection, emitter-base bandgap grading conducting (conducting of C, h point); This moment B
2The electric current that provides is through IC
2, C
8Send into monostable timing circuit 1 after the voltage stabilizing, monostable timing circuit is started working, simultaneously IC
3 Foot 13 outputs one high level, this high level is through R
13, audion T
2Base, emitter-base bandgap grading form a bias current, T
2Collection, emitter-base bandgap grading conducting, promptly a ', b ' have output voltage, this output voltage is by solid-state relay input a, b, through R
9Act on OPC, make IC
19 conductings of input foot, drive SCR by outfan foot 4 output signals
1Triggering and conducting, B at this moment
1Be switched on B
1Pay the limit through D
1～D
4Export direct current signal after the rectification, at this moment R
3Give C
3Charging is when L point current potential reaches bilateral diode D
11Trigger voltage the time, D
11Conducting, SCR
2The conducting that is triggered, R
4By short circuit, light source works.R
4Be at SCR
2During disconnection, the surge current that flows through between R, d is played metering function.Timing t in the monostable timing circuit is by levelling R
12Set.
The redesign of therapeutic apparatus part among the present invention makes original hot spot place all can pass through light receiving microscopy greater than 6 millimeters light in addition, enters light pipe, thereby makes this instrument reach high temperature hemostatic purpose, has satisfied hemostatic requirement rapidly in the clinical treatment.As: former infrared medical coagulator was used the time of exposure timing always in the time of 1.5 seconds, 327 ℃ of probe outlet temperatures.Among the present invention, in the time of 1.5 seconds, the probe outlet temperature improves about 15～30% than former outlet temperature in timing.Simultaneously, owing to guaranteed under the condition that does not shorten timing, to have improved output temperature, so can reduce the luminous power of light source, thus improved the service life of light source.Again because the redesign of power control circuit, eliminated relay because switching arc is big, the problem of circuit reliability difference, avoided the electromagnetic interference in the instantaneous surge current and transformator in the light source loop, thereby improved this instrument and be operated under the pulse condition situation of switching regulator the service life of light source at light source continually.Moreover this circuit design is reasonable, easy, because the rectification output end of control loop and the outfan that main transformer is paid the marginal ray resource loop are in parallel, is practicable self-timing control by switch R only.
Claims (7)
1, a kind of therapeutic apparatus of light source, illuminator, light pipe, heat dissipating housing, hold-down nut medicated cap, protective cap, treatment switch, handle and infrared medical coagulator that power control circuit is formed of including; it is characterized in that; the light inlet port of light pipe is equipped with a light receiving microscopy, transformator B in the power control circuit
1Former, pay a limit and incorporate into respectively by Resistor-Capacitor Unit R
1, C
1And R
2, C
2The wave filter of forming, B
1Former limit serial connection controllable silicon SCR
1, B
1Pay the limit through RC wave filter, D
1～D
4After the rectification circuit of forming connects the solid-state relay of controllable silicon formula, with illuminating lamp LD
1Switch R
2The serial connection back forms a light source loop, transformator B
2Former limit and B
1Parallel connection, B
2Pay the limit through D
5～D
8Behind the rectification circuit of forming, successively and meet C
7, serial connection audion T
1, again and meet R
11, forming a control loop through mu balanced circuit and monostable timing circuit thereafter, monostable timing circuit is sent into input a, the b of drive circuit in the solid-state relay by a ', b ' end output signal, and this circuit output signal is sent into controllable silicon SCR
1The control utmost point, the outfan in control loop rectification output end and light source loop is in parallel, promptly a point in point of the C in the control loop and the light source loop is connected, the g point of control loop is through R
10Meet audion T
1Base stage, T
1Colelctor electrode meet C point, T
1Emitter stage through h point, R
11Connect the i point, the i point connects the negative terminal of rectification output in the control loop, and the C point connects the anode of its output, and the g point connects the negative terminal of rectification output in the light source loop, and the d point is through resistance R
4Connect the anode of rectification output.
2, infrared medical coagulator according to claim 1 is characterized in that the controllable silicon formula solid-state relay in the described light source loop includes bilateral diode D
11, controllable silicon SCR
2, resistance R
3, R
4, R
5And capacitor C
3, C
4, SCR wherein
2Be serially connected in the light source loop R
4And R
5, C
4Serial connection back and SCR
2Parallel connection, R
3A termination SCR
2Anode, R
3The other end link bilateral diode D successively
11And SCR
2The control utmost point, C
3Be attempted by L, the d point in this circuit.
3, infrared medical coagulator according to claim 1 is characterized in that the monostable timing circuit in the described control loop is by integrated IC
3(LS123), audion T
2, diode D
10, capacitor C
9, C
10, resistance R
14, R
13, adjustable resistance R
12Link, its output signal is by a ', the output of b ' end.
4, infrared medical coagulator according to claim 1 is characterized in that described solid-state relay drive circuit is by photoelectrical coupler OPC, integrated IC
1(TWH9205) diode D
9, resistance R
6, R
7, R
8, R
9, capacitor C
5, C
6Link, send into a, the b input of this circuit by monostable timing circuit a ', b ' end output signal, through R
9Act on OPC, again through R
8Go into IC
1Input foot 9, IC
1Foot 9, IC
1Foot 9 is through R
7With foot 2 and C
6An end link C
6The other end and IC
1Foot 7, foot 8, C
5An end and SCR
1Anode links, C
5, C
6B is inserted in the series connection back
1Former limit one end, IC
1Foot 10, foot 11, foot 13 are connected IC
1Foot 4 is an outfan, and signal inserts SCR
1The control utmost point.
5, infrared medical coagulator according to claim 1 is characterized in that the light inlet port of described light pipe is equipped with the light receiving microscopy of a loud-speaker type.
6, infrared medical coagulator according to claim 1 is characterized in that having adopted the illuminator made from craft of gilding, the mirror base made from the polytetrafluoroethylene material.
7, infrared medical coagulator according to claim 1 is characterized in that between protective cap and the light pipe waterproof grommet being arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93108657 CN1097585A (en) | 1993-07-20 | 1993-07-20 | Infrared medical coagulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93108657 CN1097585A (en) | 1993-07-20 | 1993-07-20 | Infrared medical coagulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1097585A true CN1097585A (en) | 1995-01-25 |
Family
ID=4987240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93108657 Pending CN1097585A (en) | 1993-07-20 | 1993-07-20 | Infrared medical coagulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1097585A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100358480C (en) * | 2003-06-17 | 2008-01-02 | Kls马丁有限及两合公司 | Electrosurgical instrument for an endoscope or a catheter |
-
1993
- 1993-07-20 CN CN 93108657 patent/CN1097585A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100358480C (en) * | 2003-06-17 | 2008-01-02 | Kls马丁有限及两合公司 | Electrosurgical instrument for an endoscope or a catheter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |