CN208709994U - Ultrasonic surgical system - Google Patents

Abstract

The utility model provides a kind of ultrasonic surgical system, comprising: ultrasonic host；Main body；Ultrasonic transducer；Shaft assembly；End effector；It further include the intelligent wash device being connect with the ultrasonic main-machine communication, the ultrasound host being capable of impedance under real-time monitoring end effector light condition, and flush signal is in time generated, the intelligent wash device is according to the flush signal adjust automatically flushing pressure and irrigation flow rate to be effectively rinsed to the end effector.Only when ultrasonic host identifies flushing demand, can just flush signal be issued so that intelligent wash device in due course, effectively rinse, solves the problems, such as that conventional ultrasound instrument relies on subjective judgement and it's flushing opportunity pasts fallibility or flushing effect is bad.

Description

Ultrasonic surgical system

Technical field

The utility model relates to field of medical device more particularly to a kind of ultrasonic surgical systems.

Background technique

Currently, ultrasonic instrument is used in open surgery and minimally invasive surgical procedures (including endoscopic surgical hand Art operation and laparoscopically surgical operation operation) in, wherein the end effector portion of ultrasonic instrument passes through trochar and reaches surgery Operative site.In a way due to the increased popularity of minimally invasive surgical procedures, ultrasonic instrument is just increasingly used for It the safety of many medical conditions and is effectively treated.In brief, at ultrasonic frequencies by the ultrasonic transducer of electric generator excitation Mechanical oscillation are generated, mechanical oscillation are longitudinally transferred to end effector by transfer element or waveguide.Mechanical oscillation cause to hold Portion's actuator relative to transfer element longitudinally, laterally or twisting vibration.The vibration of end effector produces in adjacent tissue Raw amount of localized heat leads to cell dehydration, carbonization, protein hydrogen bonds fracture, to help the cutting and solidification of tissue simultaneously.Cause This, is when being transferred to biological tissue using suitable end effector with suitable energy level (energy levels), ultrasonic vibration Can be used for cutting, dissect, separating, lifting, is crosscutting, increase, solidification or burning tissue, by or not by clamping component will Musculature and osteodiastasis are struck off.

It is generally believed that the mechanical oscillation of ultrasonic instrument (especially including the ultrasonic instrument of contact ultrasonic component) can be used Than routinely cutting and burning the relatively low temperature of Ultrasonic surgical instruments while cutting simultaneously solidified structure.And it has fine Cutting, the advantages that intraoperative hemorrhage is few, temperature is low, wound is small, surgical field of view is good, safety, fast postoperation recovery have very in clinic Big real advantage.The essence of ultrasonic instrument makes itself to be suitable for a variety of applications, and can design a variety of end effectors to hold Row multiple functions.

Existing ultrasonic instrument can be caused in surgical procedures, biological tissue is residual due to specific Structure Designing Problem Remaining part point is bonded on end effector, while having the gap that blood flow or tissue fluid enter shaft assembly and main body along knife bar In, the surface of shaft assembly is condensed and is attached to after cooling.The ultrasonic vibration for causing main body to generate is obstructed along shaft assembly transmission, is drawn Play machine alarm.There are a large amount of ultrasonic instruments in surgical operation because being difficult to clean off without suitable flushing mechanism into axis group Part and the attachment of main body cause to scrap, and substantially increase the medical burden of patient.

To solve the above-mentioned problems, some conventional ultrasound surgical systems are also configured with circulating flusher, but these The non intelligent control of device, but rely on the naked eyes of clinician to determine when starting flusher, and cannot be according to influence The case where biological tissue that end effector works normally, suitably adjusts flushing pressure more effectively to rinse.

In addition, such circulating flusher is often fixed on ultrasonic instrument portion in conventional ultrasound surgical system On part and non-dismountable, the weight that will increase ultrasonic instrument causes occur arm fatigue after surgeon's long-term work, increases and suffers from The operation risk of person.And built-in structure makes the structure design of ultrasonic instrument extremely complex, and because ultrasonic instrument is primary Property consumptive material causes every to remain high the production and application cost of ultrasonic instrument.

In view of this, it is necessary to provide a kind of new ultrasonic surgical systems and its control method to solve above-mentioned ask Topic.

Utility model content

The purpose of this utility model is to provide a kind of new ultrasonic surgical systems, can independently judge cleaning Opportunity, selection are when needed rinsed end effector, avoid relying on the judgement of clinician's naked eyes and rinse The case where not in time or being not thorough and instrument caused to be scrapped.

To achieve the above objectives, the present invention adopts the following technical solutions:

A kind of ultrasonic surgical system, comprising:

Ultrasonic host issues ultrasonic electric signal；

Ultrasonic hand-held apparatus connect with the ultrasonic main-machine communication, wherein the ultrasonic hand-held apparatus includes:

Main body；

Ultrasonic transducer can be operated to convert ultrasonic vibration for ultrasonic electric signal；

Shaft assembly extends from the main body towards distal side and limits longitudinal axis；

End effector, positioned at the front end of the shaft assembly, including the ultrasound knife being connected to ultrasound transducer acoustic；

It further include the intelligent wash device being connect with the ultrasonic main-machine communication, the ultrasound host being capable of real-time monitoring end Impedance under portion's actuator light condition, and flush signal is in time generated, the intelligent wash device is believed according to the flushing Number adjust automatically flushing pressure and irrigation flow rate are to be effectively rinsed the end effector.

As the further improved technical solution of the utility model, the ultrasound host includes driving circuit, Current Voltage Sampler and host control centre, the driving circuit is for driving the handle assembly, the current-voltage sampling device pair Electric current, the voltage of the driving circuit carry out data sampling, and send the host control centre for sample information and divided Analysis handles the impedance of the biological tissue with end effector described in real-time monitoring, and when impedance reaches the impedance for needing to rinse The flush signal is generated when threshold value.

As the further improved technical solution of the utility model, the host control centre include host control chip and Fault detection circuit, the fault detection circuit input host control according to the sample information computing impedance, and by impedance data Coremaking piece.

As the further improved technical solution of the utility model, the flush signal includes starting prompt tone.

As the further improved technical solution of the utility model, the intelligent wash device includes using for guiding to rinse The diversion pipe of fluid, the end of the diversion pipe are removably attachable to the front end of the shaft assembly, the intelligent wash device Rinse fluid art is exported to the end effector by the diversion pipe.

As the further improved technical solution of the utility model, the intelligent wash device further includes limiting device, limit Position device is sheathed on the end of the diversion pipe for the shaft assembly to be operationally fixed in the end of the diversion pipe Front end.

As the further improved technical solution of the utility model, the shaft assembly includes knife bar, the inner sleeve for accommodating knife bar The outer tube outside the inner sleeve is managed and is sheathed on, the outer wall of the inside and outside casing offers the end for accommodating the diversion pipe The end of the accepting hole in portion, the diversion pipe is fixed between the inner sleeve and the knife bar by the limiting device.

As the further improved technical solution of the utility model, the end of the diversion pipe is equipped with several deflector holes, institute Circumferential direction of several deflector holes along the end of the diversion pipe is stated to be uniformly distributed.

As the further improved technical solution of the utility model, the ultrasonic transducer removably with the main body phase Even.

The beneficial effects of the utility model are: compared with prior art, in ultrasonic surgery hand provided by the utility model In art system, only when ultrasonic host recognizes end effector when idle running process middle impedance reaches a certain level, just meeting Flush signal is issued so that intelligent wash device in due course, effectively rinse, is solved in conventional ultrasound instrument by clinic The naked eyes of doctor judge and occur rinsing not in time or halfway problem.

Detailed description of the invention

Fig. 1 is the annexation figure of ultrasonic surgical system in the utility model preferred embodiment；

Fig. 2 is the circuit structure diagram of ultrasonic surgical system shown in FIG. 1；

Fig. 3 is the work flow diagram of ultrasonic surgical system shown in Fig. 2；

Fig. 4 is the structural schematic diagram of ultrasonic hand-held apparatus shown in FIG. 1；

Fig. 5 is the diagrammatic cross-section of shaft assembly and diversion pipe connection relationship shown in Fig. 4.

Specific embodiment

The utility model is described in detail below with reference to specific embodiment shown in the drawings.But these embodiment party Formula is not intended to limit the utility model, structure that those skilled in the art are made according to these embodiments, method or Transformation functionally is all contained in the protection scope of the utility model.

The term of the representation space relative position used herein such as "upper", " top ", "lower", " lower section " is for just A unit as shown in the drawings or feature are described relative to another unit or the relationship of feature in the purpose of explanation.It is empty Between the term of relative position can be intended to include different direction of the equipment in use or work other than orientation as shown in the figure. For example, the unit for being described as being located at other units or feature " below " or " under " will if the equipment in figure overturn Positioned at other units or feature " top ".Therefore, exemplary term " lower section " can include above and below both orientation.If It is standby to be otherwise directed (be rotated by 90 ° or other directions), and be interpreted accordingly used herein with space correlation Language is described.Also, it should be understood that although term first, second etc. can be used to describe various elements or knot herein Structure, but these are described object and should not be limited by these terms.These terms are only used to by these description objects each other It distinguishes.

As shown in Figure 1, the utility model preferably a kind of ultrasonic surgical system include ultrasonic hand-held apparatus 100 and with It passes through the ultrasonic host 200 that cable 210 is attached, wherein ultrasonic host 200 is used to issue to ultrasonic hand-held apparatus 100 Ultrasonic electric signal.

Specifically, in conjunction with shown in Fig. 1 and Fig. 4, ultrasonic hand-held apparatus 100 includes sequentially connected handle assembly 10, axis group Part 20 and end effector 30.Wherein, handle assembly 10 is connected with ultrasonic host 200, including main body 11 and ultrasonic transducer 13, the main body 11 includes the handle 110 and a pair of buttons 112 of pistol type, and button 112 is for starting ultrasonic transducer 13.Handle Parts 10 further include the trigger 12 positioned at 110 front of handle, and trigger 12 can be toward and away from the direction pivot of handle 110 Turn.

Ultrasonic transducer 13, which is used to being converted to the ultrasonic electric signal of ultrasonic host 200 into ultrasonic mechanical wave, to be vibrated, in this reality It applies in example, ultrasonic transducer 13 is removably connected with the main body 11.Ultrasonic transducer 13 is set to the company of ultrasonic host 200 Between wiring cable 210 and main body 11, in the present embodiment, 13 one end of ultrasonic transducer is removably connected with the main body 11, The other end is fixed on connection cables 210, and is connected pluggablely with ultrasonic host 200 by connection cables.So set, making Obtaining ultrasonic transducer 13 can be recycled as ultrasonic host 200, avoid being arranged in as the super of medical disposable material 100 one end of sound hand-held apparatus and the production and application cost for increasing ultrasonic hand-held apparatus 100.

Continuing with shown in Fig. 4 and Fig. 5, shaft assembly 20 includes knife bar 21, accommodates the inner sleeve 22 of knife bar 21 and be sheathed on Outer tube 23 outside inner sleeve 22, shaft assembly 20 is connected to handle assembly 10 by detachable mechanical connection manner, in this reality It applies in example, shaft assembly 20 is threadedly coupled with main body 11.Certainly, in other embodiments, can also be carried out by hinged mode Connection, enables the longitudinal axis that angularly lateral deviation is limited by shaft assembly 20 of end effector 30 of front end.At this In embodiment, shaft assembly 20 further includes knob 24, and the knob 24 can be operated to surround shaft assembly relative to handle assembly 10 20 longitudinal axis comes rotating shaft assembly 20 and end effector 30.Certainly, the rotatability of shaft assembly 20 and knob 24 be can It selects, may not include such design in other embodiments.

End effector 30 includes ultrasound knife 32 and pivots clamping limb 33, and clamping limb 33 and trigger 12 couple so that pressing from both sides Gripping arm 33 is able to respond trigger 12 and pivots towards the pivot of pistol grip 110 towards ultrasound knife 32；And make clamping limb 33 are able to respond trigger 12 pivots far from the ultrasound knife 32 that pivots away from of pistol grip 110.About trigger 12 and folder The coupling structure of gripping arm 33, because being techniques known, details are not described herein again.Certainly, the ultrasound knife 32 in the present embodiment It is only example with clamping limb 33 is pivoted, the structure of end effector 30 can also change other structures into according to clinical needs.

To sum up, during clinical operation, after the biological tissue of patient is fixed between ultrasound knife 32 and clamping limb 33, Output of the ultrasonic host 200 to ultrasonic transducer 13 is controlled by button 112, so that ultrasonic transducer 13 generates mechanical oscillation, To which mechanical oscillation are transferred to ultrasound knife 32, the sonic oscillation of ultrasound knife 32 can cut off simultaneously biological tissue and make adjacent sets The protein denaturation in cell is knitted, the rush for thus providing relatively fewer thermal diffusion coagulates effect.Foregoing two buttons 112, One for low-power starting ultrasound knife 32, another to start ultrasound knife 32 with high power.In the present embodiment, ultrasonic surgery Surgery systems further include floor push (not illustrated), and operator may be selected to realize drive mechanism by floor push and surpass The on-off of sonic transducer 13, and control by foot-operated dynamics the size of startup power.The setting of floor push can be alleviated The hand fatigue of operator, to prevent the maloperation that thus may cause.

It is shown in Figure 1, it is bonded on end effector 30 to solve biological tissue, or enter axis group along knife bar 21 20 inside of part is so that the problem of transmission for causing ultrasonic vibration is obstructed, the preferred embodiment in the utility model additionally provides a kind of intelligence Flusher 300, the intelligent wash device 300 are communicated to connect with ultrasonic host 200, being capable of real-time monitoring end effector 30 Impedance when biological tissue is handled, and in time generates flush signal, the intelligent wash device 300 is according to the flush signal Adjust automatically flushing pressure and irrigation flow rate are to be effectively rinsed the end effector 30.In the present embodiment, lead to Letter connection is realized by the communications cable 330, can also be wireless communication between ultrasonic host 200 and intelligent wash device 300 certainly Connection.

Compared with traditional flusher, intelligent wash device 300 provided by the utility model is only being rushed Start cleaning procedure at the time of washing, and being capable of the flushing pressure of the impedance information adjust automatically according to detected by ultrasonic host 200 Power and irrigation flow rate, improve flush efficiency, overcome conventional flush device and easily lead to and miss by the subjective judgement of doctor Flushing opportunity or the defect that flushing effect can not be reached.

The circuit structure diagram of ultrasonic surgical system shown in Figure 2, the ultrasound host 200 include driving electricity Road, current-voltage sampling device and host control centre, the driving circuit is for driving the ultrasound knife 32, the electric current electricity It presses sampler to carry out data sampling to electric current, the voltage of the driving circuit, and sends the host for sample information and control Center is analyzed, and the impedance of the biological tissue is handled with ultrasound knife 32 described in real-time monitoring, and need to rush when impedance reaches The flush signal is generated when the impedance threshold washed.

It should be noted that is, ultrasound knife 32 is in cutting biological tissue when ultrasonic host 200 normally issues ultrasonic electric signal When, in a dormant state, even if the impedance of ultrasound knife 32 is more than impedance threshold, ultrasonic host 200 is not yet for intelligent wash device 300 Flush signal can be issued to intelligent wash device 300.And only when ultrasound knife 32 under no load, i.e. ultrasound knife 32 Terminate upper primary cutting operation and prepare start cutting operation next time when, or leave the biological tissue handled and unloaded When operation, if the impedance measured at this time is greater than preset impedance threshold, show 32 adhesion of ultrasound knife biological tissue, Ke Nengying Subsequent normal cutting operation is rung, ultrasonic host 200 issues flush signal to intelligent wash device 300 at this time.

Wherein, the host control centre includes host control chip and fault detection circuit, the fault detection circuit Chip is controlled according to the sample information computing impedance, and by impedance data input host.

The ultrasound host 200 further includes ultrasonic electric signal generator, and the host control centre passes through the ultrasonic electric Signal generator issues the ultrasonic electric signal, and the ultrasonic electric signal is converted to machinery by the ultrasonic transducer 13 Vibration is to drive the ultrasound knife 32.

In conjunction with shown in Fig. 1, Fig. 2 and Fig. 3, in the course of surgery, operator passes through on floor push or handle assembly 10 Button 112 issues sign on to host control chip, and host control chip sending control signal gives ultrasonic electric signal generator, It is set to issue ultrasonic electric signal, the ultrasonic electric signal that ultrasonic electric signal generator generates is exported to ultrasonic transducer 13, makes its production Raw ultrasonic mechanical vibration.Ultrasonic vibration is transferred to ultrasound knife 32 by knife bar 21 and is cut with the biological tissue to front end patient It cuts.Current-voltage sampling device carries out stochastical sampling to the Current Voltage in the driving circuit under light condition in real time, and acquisition is adopted Sample signal is admitted to fault detection circuit, fault detection circuit by the resonance frequency Fs of analytical calculation ultrasound knife 32, impedance Z, The parameters such as phase difference W and power.The data of analytical calculation are sent into host and control chip by fault detection circuit, and host controls core Piece judges data such as impedance Z, it is compared with preset impedance threshold, to determine whether to issue flush signal.

Preferably, flush signal includes rinsing prompt tone, i.e., when ultrasonic host 200 identifies flushing demand, it will hair It rinses prompt tone out to inform doctor, intelligent wash device 300 is connected by doctor, intelligent wash device 300 is according to flush signal Adjust automatically flushing pressure and irrigation flow rate are to be effectively rinsed end effector 30.Preferably, flush signal is also wrapped Gear information is included, different gears corresponds to certain flushing pressure and irrigation flow rate, after connecting intelligent wash device 300, intelligence Energy flusher 300 automatically selects corresponding gear according to flush signal and starts cleaning procedure.Further, flush signal is also wrapped The prompt tone for rinsing and terminating is included, in a preferred embodiment, flushing process does not influence the normal operating of end effector 30, thus Host control centre still real-time monitoring and can judge impedance, and after the completion of flushing, impedance drops to impedance threshold hereinafter, ultrasonic host 200 issue end prompt tone, and doctor can disconnect the connection of intelligent wash device 300 and ultrasonic hand-held apparatus 100 according to prompt.It is excellent Two different sound can be set in selection of land, the flushing prompt tone for terminating prompt tone and starting.

Referring to fig. 4 and shown in Fig. 5, the intelligent wash device 300 includes the diversion pipe for guiding irrigating fluid 310, the end of the diversion pipe 310 is removably attachable to the front end of the shaft assembly 20, and the intelligent wash device 300 is logical It crosses the diversion pipe 310 and exports rinse fluid art to the end effector 30.Wherein, rinse fluid art can be gas or liquid, In the present embodiment, rinse fluid art is flushing liquor.Diversion pipe 310 is removably attachable to shaft assembly 20, this makes intelligent wash Device 300 can relatively ultrasonic hand-held apparatus 100 separated, i.e., diversion pipe 310 can be disassembled when not needing and rinsing, phase For the cleaning device of conventional internal formula, dismountable intelligent wash device 300 can reduce the burden of doctor's hand, while The recycling rate of waterused of intelligent wash device 300 is improved, convenient for controlling the production of the ultrasonic hand-held apparatus 100 as medical disposable material Cost and use cost.

In the present embodiment, the intelligent wash device 300 further includes limiting device 320, and limiting device 320 is sheathed on The end of the diversion pipe 310 is used to operationally be fixed on the end of the diversion pipe 310 front end of the shaft assembly 20, Wherein, limiting device 320 is configured to tubular, interior to be equipped with the through-hole worn for the end of diversion pipe 310.Limiting device 320 It can use magnetic attracting force and be adsorbed on metal 20 front end of shaft assembly, it is of course also possible to using frictional force or be threadedly engaged Etc. modes limited.About the structure of limiting device 320, those skilled in the art can be according to the prior art and this implementation Various deformation is made in the enlightenment of example, will not enumerate herein.

With continued reference to shown in Fig. 5, the outer wall of the inside and outside casing 23 of shaft assembly 20 offers the end of receiving diversion pipe 310 The accepting hole in portion, accepting hole is coaxial with the through-hole of limiting device 320 and aperture is identical.The end of diversion pipe 310 sequentially passes through outer The accepting hole of casing 23 and the accepting hole of inner sleeve 22, are finally limited device 320 and are fixed between inner sleeve 22 and knife bar 21. So limit setting enables gap of the flushing liquor between inner sleeve 22 and knife bar 21 to rinse out and flows along knife bar 21 Enter the blood in shaft assembly 20 and biological tissue.Preferably, silica gel sealing ring 25 is arranged on knife bar 21, sealing ring 25 is fixed On the vibration nodal point of knife bar 21.The accepting hole of limiting device 320 and inside and outside casing 23 is all set to the front end of sealing ring 25, So avoidable flushing liquor or blood tissues further flow towards handle assembly 10 and cause mechanical transfer failure.

In the present embodiment, the end of diversion pipe 310 is equipped with several deflector holes 312, and several deflector holes 312 are along water conservancy diversion The circumferential direction of the end of pipe 310 is uniformly distributed, and enables diversion pipe 310 to all directions jet douche liquid.

In conclusion ultrasonic surgical system provided by the preferred embodiment in the utility model, including dismountable intelligence Energy flusher 300, the flushing that can be issued according to ultrasonic host 200 prompts, for end effector 30 and shaft assembly 20 Front end in due course, effectively rinse, and dismountable intelligent wash device 300 after flushing, reduces ultrasonic hand-held apparatus 100 overall weight not only reduces design difficulty, the production and application cost of ultrasonic hand-held apparatus 100, also improves conduct The user experience of the doctor of operator is made that significant improvement compared with the prior art, suitable for industrially promoting and applying.

Referring to Fig. 3, it is described that the control method of the ultrasonic surgical system includes the following steps: that ultrasonic host 200 passes through Current-voltage sampling device in real time samples electric current, the voltage in the driving circuit of the ultrasound knife 32 under light condition；It is described Host control centre analyzes current and voltage data collected, and computing impedance value simultaneously judges whether to reach what needs rinsed Impedance threshold；Such as reach the impedance threshold for needing to rinse, ultrasonic host 200 issues to the intelligent wash device 300 and rinses letter Number；The intelligent wash device 300 selects suitable flushing gear according to the flush signal, to rinse pressure using suitable Power and irrigation flow rate execute flushing operation.

Wherein, it such as the impedance threshold for not up to needing to rinse, then returns, continues to carry out freshly harvested current and voltage data Analysis, computing impedance value simultaneously judge whether to reach the impedance threshold for needing to rinse.Further, which further includes step Rapid: after flushing, issuing terminates prompt, and ultrasonic host 200 automatically restores to standby mode.

Preferably, when ultrasonic host issues flush signal to the intelligent wash device, flush signal includes rinsing shelves Position information, gear information includes flushing pressure and irrigation flow rate.Wherein, irrigation flow rate and the corresponding relationship of impedance can refer to as follows Chart.For example, when impedance is at 200-300 ohm, the letter of gear included by the flush signal that ultrasonic host 200 issues The speed that ceasing can prompt intelligent wash device 300 to automatically select 5 milliliters/seconds is rinsed operation.So analogize, when needing to rinse When, the flush signal comprising gear information can be sent to intelligent wash device 300 by ultrasonic host 200, be allowed to for ultrasonic hand The corresponding site of holder tool 100 in due course, effectively rinse.

Impedance magnitude (ohm)	Rinse-system uninterrupted (milliliters/second)
		200-300	5
300-400	10
		400-500	15
>500	20

Above-mentioned control method is simple, effective, can solve applied to ultrasonic surgical system provided by the utility model Inconvenience certainly in the prior art, achieves significant progress, is suitable for the application of and promotes.

It should be appreciated that although this specification is described in terms of embodiments, but not each embodiment only includes one A independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should will say As a whole, the technical solution in each embodiment may also be suitably combined to form those skilled in the art can for bright book With the other embodiments of understanding.

Tool of the series of detailed descriptions listed above only for the feasible embodiment of the utility model Body explanation, they are all without departing from made by the utility model skill spirit not to limit the protection scope of the utility model Equivalent implementations or change should be included within the scope of protection of this utility model.

Claims (8)

1. a kind of ultrasonic surgical system, comprising:

Ultrasonic host issues ultrasonic electric signal；

Ultrasonic hand-held apparatus connect with the ultrasonic main-machine communication, wherein the ultrasonic hand-held apparatus includes:

Main body；

Ultrasonic transducer is connected with the main body, can operate to convert ultrasonic vibration for ultrasonic electric signal；

Shaft assembly extends from the main body towards distal side and limits longitudinal axis；

End effector, positioned at the front end of the shaft assembly, including the ultrasound knife being connected to ultrasound transducer acoustic；

It is characterized by also including the intelligent wash device connecting with the ultrasonic main-machine communication, the ultrasound host can be real When monitoring end effector light condition under impedance, and in time generate flush signal, the intelligent wash device is according to institute Flush signal adjust automatically flushing pressure and irrigation flow rate are stated to be effectively rinsed to the end effector.

2. ultrasonic surgical system as described in claim 1, it is characterised in that: it is described ultrasound host include driving circuit, Current-voltage sampling device and host control centre, the driving circuit for driving the ultrasound knife, adopt by the Current Voltage Sample device carries out data sampling, and sends the host control centre for sample information to electric current, the voltage of the driving circuit It is analyzed, with the impedance of end effector described in real-time monitoring in the unloaded state, and when impedance reaches the resistance for needing to rinse The flush signal is generated when anti-threshold value.

3. ultrasonic surgical system as claimed in claim 2, it is characterised in that: the host control centre includes host control Coremaking piece and fault detection circuit, the fault detection circuit are and defeated by impedance data according to the sample information computing impedance Enter host control chip.

4. ultrasonic surgical system as described in claim 1, it is characterised in that: the intelligent wash device includes for leading Draw the diversion pipe of irrigating fluid, the end of the diversion pipe is removably attachable to the front end of the shaft assembly, the intelligence Flusher exports rinse fluid art to the end effector by the diversion pipe.

5. ultrasonic surgical system as claimed in claim 4, it is characterised in that: the intelligent wash device further includes limit Device, limiting device are sheathed on the end of the diversion pipe for the axis to be operationally fixed in the end of the diversion pipe The front end of component.

6. ultrasonic surgical system as claimed in claim 5, it is characterised in that: the shaft assembly includes knife bar, receiving knife The inner sleeve of bar and the outer tube being sheathed on outside the inner sleeve, the outer wall of the inside and outside casing offers leads described in receiving The accepting hole of the end of flow tube, the end of the diversion pipe by the limiting device be fixed on the inner sleeve and the knife bar it Between.

7. ultrasonic surgical system as claimed in claim 6, it is characterised in that: the end of the diversion pipe is equipped with several lead The circumferential direction of discharge orifice, end of several deflector holes along the diversion pipe is uniformly distributed.

8. ultrasonic surgical system as described in claim 1, it is characterised in that: the ultrasonic transducer removably with institute Main body is stated to be connected.