CN2235269Y - Ultrasonic surgical instrument - Google Patents
Ultrasonic surgical instrument Download PDFInfo
- Publication number
- CN2235269Y CN2235269Y CN 96203206 CN96203206U CN2235269Y CN 2235269 Y CN2235269 Y CN 2235269Y CN 96203206 CN96203206 CN 96203206 CN 96203206 U CN96203206 U CN 96203206U CN 2235269 Y CN2235269 Y CN 2235269Y
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- CN
- China
- Prior art keywords
- handle
- cutter
- control
- transducer
- signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000003321 amplification Effects 0.000 claims abstract description 12
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 12
- 239000000919 ceramic Substances 0.000 claims description 9
- 238000002604 ultrasonography Methods 0.000 claims description 7
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 238000001356 surgical procedure Methods 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims description 2
- 230000009466 transformation Effects 0.000 claims description 2
- 238000003745 diagnosis Methods 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 abstract 1
- 230000023597 hemostasis Effects 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 11
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
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- 230000002159 abnormal effect Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 230000000025 haemostatic effect Effects 0.000 description 2
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- 241000238008 Cerithidea rhizophorarum Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 210000004204 blood vessel Anatomy 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
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- 208000014674 injury Diseases 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model relates to an ultrasonic surgical instrument which comprises a handle and a main instrument, wherein, the handle comprises a cutter, a variable amplitude rod, a transducer, a washing tube, a draft tube, cable, etc., ultrasonic waves are transmitted to various surgical cutters through the transducer and the variable amplitude rod and acts on biologic tissue; the main instrument is the electric part of the ultrasonic surgical instrument, which comprises an ultrasonic generator, a station amplifier, a manual and foot brake control system, a dynamic fault diagnosis system, and an automatic disconnection system. Under the control of a microcomputer the ultrasonic generator generates small-signal ultrasonic pulse which is passed to the handle after amplification. The utility model has the advantages of selective cracking, less damage, high precision, capacity of hemostasis, etc.
Description
This utility model relates to a kind of ultra-sonic surgical aspirator, belongs to technical field of medical instruments.
Surgical operation is the important means of clinical treatment.Along with the continuous developing in this field, the development of surgical knife technology is maked rapid progress.Before technology such as laser, electronics are applied to surgical field, the long-term dominate of machinery scalpel, its volume is less, cut sharp, but shortcoming is arranged also, as can not being used for special surgical operation, and amount of bleeding is bigger or the like during operation, these drawbacks limit the range of application of mechanical scalpel.Along with laser, development of electronic technology, polytype surgical knifes such as high frequency electric knife, laser scalpel, microwave coagulation treatment and argon cutter have successively appearred, they have compared significantly haemostatic effect with the traditional mechanical cutter, clinical application range is expansion greatly also, as excision of part internal organs or the like.Wherein the structure of high frequency electric knife as shown in Figure 1.Its operation principle is: high frequency pulse generator produces the high frequency spike, this spike is a low-voltage, big current signal, the process cable is delivered to the main electrode on the handle, human body soft tissue cuts in the local heat effect that the high-frequency impulse that utilizes main electrode to send produces, during work, auxiliary electrode also contacts with human body surface.High frequency electric knife has significantly haemostatic effect, but follows the burning of soft tissue, and has pungent abnormal smells from the patient to produce, recovery behind the incision surgery is also slower, and the high frequency electric knife cutting speed is slower in addition, can only cut soft tissue, to harder tissue, then can not cut as cartilage, skull, femur etc.
The purpose of this utility model is a kind of ultra-sonic surgical aspirator of design, in surgical operation, the characteristics of utilizing ultrasound wave in elastic fluid, to propagate, on special operating theater instruments, add supersonic vibration, make ultrasound wave act on biological tissue by surgical knife tool, mainly be by the powerful acceleration of ultrasonic vibration generation and the effect of cavitation effect, cut or cracked biological tissue.
The ultra-sonic surgical aspirator of this utility model design is made up of handle and main frame two parts.Handle is made up of cutter, horn, transducer, syringe pipe, draft tube and cable.Handle joins by cable and main frame.Transducer is a core structure, and the centre accompanies piezoelectric ceramics and is contained in together in the prestressing force sleeve, and piezoelectric ceramics joins by contact conductor and handle cable.Transducer is connected with horn by screw.Cutter is bonded in the horn end.Syringe pipe and draft tube are separately fixed on the handle casing, and its end is mutually neat with cutter.Main frame is the supersonic source and the control section of handle, is made up of ultrasonic generation circuit, power amplification circuit, handle control circuit.Ultrasonic generation circuit wherein comprises D/A modular converter U
4, control D/A module produces the single-chip microcomputer U of analog voltage signal
1, voltage signal is carried out the operational amplifier U that computing is amplified
5, U
6And U
7, voltage-frequency translation module U
3And latch U
2, expansion sheet external memory module U
3Power amplification circuit wherein comprises the transistor T that the small-signal ultrasound wave is encouraged amplification
1, transistor T that the signal secondary is amplified
2, to signal be coupled the coupling transformer TRAN of transformation, the transistor T of constant current is provided for the drive(r) stage power transistor
3Handle control circuit wherein comprises respectively the control flushing, attracts, manually, automatically, the button S of cut-out, backpedalling brake
1-S
6, be used for the NAND gate IC that multichannel is selected
1: A, IC
1: B, IC
2: A and IC
2: B, be used for d type flip flop IC to the control signal shaping of selecting
3: A and IC
3: B and IC
4: A, IC
4: B, be used to drive the drive circuit IC of relay
5: A, IC
5: B, IC
5: C and IC
5: D, three utmost point amplifier tube DG
1, DG
2And DG
3And the relay J that is used to carry out control action
1, J
2And J
3
The cracked blood vessel of protecting of advantage, particularly selectivity that the utlity model has uniquenesses such as selectivity is cracked, damage is little, degree of accuracy is high, can stop blooding is with neural injury-free.Can be applied to little in brain, the external coat delicate procedure of power, the excision of internal tumor, be attracted to powerful saw bone, bore osseous surgery or the like, the range of application of ultrasonic surgical blade has surpassed aforesaid surgical knife.
Description of drawings:
Fig. 1 is the functional-block diagram of prior art high frequency electric knife.
Fig. 2 is this utility model ultra-sonic surgical aspirator functional-block diagram.
Fig. 3 is the structural representation of handle in the ultra-sonic surgical aspirator.
Fig. 4-1 is to Fig. 4-the 5th, five of cutter kinds of different structure figure in the handle.
Fig. 5 is a ultrasonic generation circuit (1).
Fig. 6 is a ultrasonic generation circuit (2).
Fig. 7 is a power amplification circuit.
Fig. 8 is the handle control circuit.
Below in conjunction with accompanying drawing, introduce content of the present utility model in detail.Fig. 2 is the structural representation of handle in this utility model surgery apparatus.Among the figure, the 1st, cutter, the 2nd, horn, the 3rd, screw, the 4th, the prestressing force sleeve, the 5th, piezoelectric ceramics, the 6th, transducer, the 7th, contact conductor, the 8th, cable, the 9th, handle casing, the 10th, suction outlet, the 11st, pour mouth, the 12nd, horn shell, the 13rd, draft tube, the 14th, syringe pipe.
The work process of handle can be sketched and be:
Transducer utilizes the piezoelectric effect of piezoelectric ceramics with the ultra sonic machinery vibration of electrical signal conversion for same frequency, after horn, supersonic operation cutter amplify, gives off the ultrasound wave of certain power, is used for the human body operation.
Provided the structure chart of handle as accompanying drawing 3.Wherein the quality of piezoelectric transducer quality directly has influence on whole instrument operating technology index quality.Piezoelectric transducer 6 adopts the piezoelectric ceramics sandwich type structural, and the centre is a piezoelectric ceramics 5, and whole energy transducer adopts 4 fine settings of prestressing force sleeve to be added in the piezoelectric ceramics heap and goes up prestressed size, and the Yanzhong axle is to having ventilating heat dissipating hole, and this hole is also as electrode lead hole.
The amplitude of transducer output is less usually, is generally tens microns, produces bigger amplitude in order to make the ultrasonic radiation head, also for the power that makes transducer output is passed to radiation head effectively, realizes acoustic matching simultaneously, generally adds horn between these two.Employing two-stage luffing as accompanying drawing 3 horn 2 amplifies, the structure that adopts screw 3 to be close in the middle of horn and the transducer.Horn is also installing sleeve 12 outward.
Be fixed with draft tube 13 and pour pipe 14 on handle casing 9, this two pipe has suction outlet 10 respectively and pours mouth 11, is connected on the flushing aspirator.
At the front end of horn surgical knife tool 1 is housed as accompanying drawing 3.
The ultrasonic vibration system of being made up of transducer, horn and supersonic operation cutter produces peak swing at the end of supersonic operation cutter, gives off the ultrasound wave of certain power.According to different purposes, the end of supersonic operation cutter can be processed into different shape, as saw bone zigzag, the cutting edge shape that cuts and organizes usefulness, the cracked tumor used use cylindric or the like.Difform supersonic operation cutter, the flow direction difference of the sound miniflow that gives off, the effect of generation is also different, can satisfy multiple needs.
To Fig. 4-5, provided the structure chart of five kinds of surgical knife tools as accompanying drawing 4-1, be followed successively by cutting knife, saw cutter respectively, clean cutter, attract head, puncturing lever.
This utility model ultra-sonic surgical aspirator, its supersonic source and handle control section mainly comprise:
This utility model ultra-sonic surgical aspirator is mainly by two parts part, i.e. main frame, handle.Total theory diagram is seen accompanying drawing 2.
Introduce respectively below:
(1) main frame
Main frame is the supersonic source and the control section of ultra-sonic surgical aspirator, mainly comprises 1. ultrasonic generation circuit; 2. power amplification circuit; 3. manually and the backpedalling brake control circuit; 4. dynamic fault diagnosis and automatic shutdown circuit.
The work process of host machine part can be sketched and be:
Under microcomputer control, ultrasonic generator produces the ultrasonic pulse of small-signal, after high power amplifier amplifies, gives handle.
Carry out division with regard to each several part below.
1, ultrasonic generation circuit:
Therefore the mechanical quality factor of piezoelectric transducer (Q-value) is higher, needs to adopt high-accuracy voltage-frequency translation module, produces high stability, high accuracy, supersonic source that output spectrum purity is high.
The circuit theory of this part is seen Fig. 5 and Fig. 6: one-chip computer module 8098 (U1), its peripheral circuit has latch 74ALS373 (U2), expansion sheet external memory module 764 (U3) etc., after one-chip computer module 8098 control D/A modular converter DAC1210 and operational amplifier OPO7 (U7) amplify, send high-accuracy voltage-frequency translation module LM314 (U8) to produce ultrasonic signal.
2, power amplification circuit:
As Fig. 7, this power amplification circuit adopts two-stage: drive(r) stage and amplifier stage, be furnished with constant-current source circuit and holding circuit simultaneously.Amplifier stage adopts the category-A power amplifier.
The small-signal ultrasound wave of sending here from ultrasonic generator, amplify through power transistor B940 (T1) through blasting earlier, being sent to amplifier stage power transistor 3DA810 (T2) secondary again amplifies, become the high-power ultrasonics signal, by coupling transformer TRAN output, the high-power ultrasonics signal is added to (in handle) on the piezoelectric transducer at last.Constant-current source circuit transistor B507 (T3) provides constant current for drive(r) stage power transistor B904 (T1), makes the power amplification working stability.
3, manual and backpedalling brake control system:
For the ease of operation, adopt the control that microcomputer has been realized manually and backpedalling brake is opened and turn-offed power amplifier, thus the duty of control instrument.
" IRRIGATION " in Fig. 8 electrical schematic diagram seen in flushing control
Attract to control " SUCTION " that sees in Fig. 8 electrical schematic diagram
Manually " MANU " in Fig. 8 electrical schematic diagram seen in control
Automatically " AUTO " in Fig. 8 electrical schematic diagram seen in control
" the FOOT BREAK " in Fig. 8 electrical schematic diagram seen in backpedalling brake control
Automatically cut off and control " MANU " that sees in Fig. 8 electrical schematic diagram
4, dynamic fault diagnosis and automatic cut-out system:
When Instrument working state is unusual, as the handle electric leakage, the voltage that power amplifier output is too high, during power supply output dash current, microcomputer can be discerned abnormal failure automatically, and cuts off the electricity supply immediately to guarantee the safety of human body and instrument.
Automatically cut off and control " the AUTO BREAK " that sees in Fig. 8 schematic diagram
Shown in Fig. 8 schematic diagram, the six press keys S in above two parts
1-S
6All by NAND gate 74LS21, d type flip flop 74LS74, drive circuit 7404, after audion 2N5551 amplified, the folding of control relay was to realize various controls.
Claims (2)
1, a kind of ultra-sonic surgical aspirator is characterized in that this surgery apparatus is made up of handle and main frame two parts; Described handle is made up of cutter, horn, transducer, syringe pipe, draft tube and cable, handle joins by cable and main frame, transducer is a core structure, the centre accompanies piezoelectric ceramics and is contained in together in the prestressing force sleeve, piezoelectric ceramics joins by contact conductor and handle cable, and transducer is connected with horn by screw, and cutter is bonded in the horn end, syringe pipe and draft tube are separately fixed on the handle casing, and its end is mutually neat with cutter; Described main frame is the supersonic source and the control section of handle, is made up of ultrasonic generation circuit, power amplification circuit, handle control circuit, and ultrasonic generation circuit wherein comprises D/A modular converter U
4, control D/A module produces the single-chip microcomputer U of analog voltage signal
1, voltage signal is carried out the operational amplifier U that computing is amplified
5, U
6And U
7, voltage-frequency translation module U
3And latch U
2, expansion sheet external memory module U
3, power amplification circuit wherein comprises the transistor T that the small-signal ultrasound wave is encouraged amplification
1, transistor T that the signal secondary is amplified
2, to signal be coupled the coupling transformer TRAN of transformation, the transistor T of constant current is provided for the drive(r) stage power transistor
3, handle control circuit wherein comprises respectively the control flushing, attracts, manually, automatically, the button S of cut-out, backpedalling brake
1-S
6, be used for the NAND gate IC that multichannel is selected
1: A, IC
1: B, IC
2: A and IC
2: B, be used for d type flip flop IC to the control signal shaping of selecting
3: A and IC
3: B and IC
4: A, IC
4: B drive circuit IC
5: A, IC
5: B, IC
5: C and IC
5: D, three utmost point amplifier tube DG
1, DG
2And DG
3And the relay J that is used to carry out control action
1, J
2And J
3
2, a kind of ultra-sonic surgical aspirator as claimed in claim 1 is characterized in that wherein said cutter is cutting knife, saw cutter, cleans cutter, attracts any in head and the puncturing lever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96203206 CN2235269Y (en) | 1996-02-09 | 1996-02-09 | Ultrasonic surgical instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96203206 CN2235269Y (en) | 1996-02-09 | 1996-02-09 | Ultrasonic surgical instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2235269Y true CN2235269Y (en) | 1996-09-18 |
Family
ID=33888880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96203206 Expired - Fee Related CN2235269Y (en) | 1996-02-09 | 1996-02-09 | Ultrasonic surgical instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2235269Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406080C (en) * | 2001-07-06 | 2008-07-30 | 奥列格·伦尼亚诺维奇·索洛维约夫 | Method, system and device for altrasonic action on blood vessel or cavernous body |
| CN100421628C (en) * | 2002-09-24 | 2008-10-01 | 伊西康内外科公司 | Ultrasonic surgical instrument having an increased working length |
| CN101828943A (en) * | 2010-05-11 | 2010-09-15 | 广东工业大学 | Ultrasonic orthopedic surgery saw |
| CN103417263A (en) * | 2012-05-18 | 2013-12-04 | 北京速迈医疗科技有限公司 | Ultrasonic cutting hemostasis surgery system |
| CN104780886A (en) * | 2012-11-20 | 2015-07-15 | 爱尔康研究有限公司 | Ultrasonic handpiece |
| CN106725739A (en) * | 2017-02-24 | 2017-05-31 | 厚凯（天津）医疗科技有限公司 | One kind is without cable ultrasonic surgical systems |
| CN113180786A (en) * | 2021-04-29 | 2021-07-30 | 杭州淳通新材料科技有限公司 | TC4 ultrasonic scalpel and manufacturing method thereof |
-
1996
- 1996-02-09 CN CN 96203206 patent/CN2235269Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100406080C (en) * | 2001-07-06 | 2008-07-30 | 奥列格·伦尼亚诺维奇·索洛维约夫 | Method, system and device for altrasonic action on blood vessel or cavernous body |
| CN100421628C (en) * | 2002-09-24 | 2008-10-01 | 伊西康内外科公司 | Ultrasonic surgical instrument having an increased working length |
| CN101828943A (en) * | 2010-05-11 | 2010-09-15 | 广东工业大学 | Ultrasonic orthopedic surgery saw |
| CN103417263A (en) * | 2012-05-18 | 2013-12-04 | 北京速迈医疗科技有限公司 | Ultrasonic cutting hemostasis surgery system |
| CN104780886A (en) * | 2012-11-20 | 2015-07-15 | 爱尔康研究有限公司 | Ultrasonic handpiece |
| US9693897B2 (en) | 2012-11-20 | 2017-07-04 | Alcon Research, Ltd. | Ultrasonic handpiece |
| CN106725739A (en) * | 2017-02-24 | 2017-05-31 | 厚凯（天津）医疗科技有限公司 | One kind is without cable ultrasonic surgical systems |
| CN113180786A (en) * | 2021-04-29 | 2021-07-30 | 杭州淳通新材料科技有限公司 | TC4 ultrasonic scalpel and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |