Disclosure of Invention
The invention aims to provide a pair of high-frequency electric and ultrasonic dual-output multipurpose scissors, which aims to solve the problems in the prior art, and comprises a clamping nozzle, a cutter bar, an outer sleeve, a trigger and a handle shell, wherein:
the clamping nozzle is rotatably connected with the outer sleeve relative to the cutter bar;
the outer sleeve is sleeved outside the cutter bar, the front end of the cutter bar extends to the outside of the outer sleeve, the rear end of the cutter bar extends to the handle shell in the outer sleeve, and the cutter bar and the outer sleeve are insulated;
the wrench handle is arranged on the handle shell, and the rotation of the wrench handle can drive the clamping nozzle to rotate relative to the cutter bar;
the clamping nozzle is connected to a high-potential end of a high-frequency current loop through the outer sleeve, and the cutter bar is connected to a low-potential end of the high-frequency current loop.
According to one aspect of the invention, in the high-frequency electric and ultrasonic dual-output multipurpose scissors, the outer sleeve and the ultrasonic transducer inserted into the handle shell are screwed and limited and fixed relatively through a screwing structure arranged on the handle shell, so that the cutter bar and the ultrasonic transducer are fixed relatively.
According to another aspect of the invention, in the high-frequency electric and ultrasonic dual-output multipurpose scissors, the screwing structure comprises a thumb wheel, a torsion spring, a first ratchet wheel assembly and a second ratchet wheel assembly which are sleeved outside the outer sleeve along the axial direction of the outer sleeve and are combined together; the conducting ring sleeved on the second ratchet wheel assembly is penetrated through by a screw, and the conducting ring is electrically communicated with the outer sleeve through the screw; and a front conducting pin which is arranged in the handle shell and is fixed relative to the handle shell is contacted with the conducting ring.
According to another aspect of the invention, in the high-frequency electric and ultrasonic dual-output multipurpose scissors, the front conducting needle is electrically conducted with the rear conducting needle through a conducting wire, and the rear conducting needle is arranged in the handle shell and is relatively fixed with the handle shell; the rear conductive pin is electrically connected with the high potential end of the high-frequency circuit loop.
According to another aspect of the invention, in the high-frequency electric and ultrasonic dual-output multipurpose scissors, the high-frequency electric and ultrasonic dual-output multipurpose scissors further comprise an inner sleeve, wherein the inner sleeve is sleeved outside the cutter bar and extends in the outer sleeve; the front end of the inner sleeve is connected with the clamping nozzle, the rear end of the inner sleeve is connected with the trigger through a transmission structure, and the rotation of the trigger can drive the inner sleeve to axially move through the transmission structure so as to drive the clamping nozzle to rotate relative to the tool handle; the cutter bar is insulated from the inner sleeve.
According to another aspect of the invention, in the high-frequency electric and ultrasonic dual-output multipurpose scissors, the transmission structure comprises a connecting rod, a sliding block, a wave spring, a sliding block connecting piece, a front retainer ring and a rear retainer ring; the trigger is connected with the sliding block through the connecting rod; the sliding block is provided with a clamping end which is matched and connected with the sliding block connecting piece; the wave spring is arranged between the front retainer ring and the rear retainer ring and applies elastic force to the slider connecting piece through the front retainer ring.
According to another aspect of the invention, in the high-frequency electric and ultrasonic dual-output multipurpose scissors, one or more manual control key circuits are arranged in the handle shell; and the key arranged on the handle shell triggers the manual control key circuit to generate a manual control signal.
According to another aspect of the invention, in the high-frequency electric and ultrasonic dual-output multi-purpose scissors, the outer sleeve is wrapped by a sleeve insulating sleeve made of polyfluorinated ethylene propylene material.
According to another aspect of the invention, in the high-frequency electric and ultrasonic dual-output multipurpose scissors, the cutter bar is wrapped by a cutter bar insulating sleeve made of polytetrafluoroethylene materials.
According to another aspect of the invention, in the high-frequency electric and ultrasonic dual-output multipurpose shears, an insulating coating made of polytetrafluoroethylene materials is formed on the outer surface of the cutter rod.
The high-frequency electric and ultrasonic dual-output multipurpose scissors are used together with the bipolar ultrasonic dual-output system, ultrasonic energy and high-frequency current transmission paths can be simultaneously provided on the high-frequency electric and ultrasonic dual-output multipurpose scissors, the ultrasonic energy and the high-frequency current are concentrated at the knife head part and are applied to tissues, the advantages of the ultrasonic energy and the high-frequency current in the surgical operation can be integrated by combining the reasonable control of an ultrasonic operation system, the respective defects can be overcome, the cutting and coagulation efficiency is improved, the cutting coagulation effect is enhanced, the operation efficiency is improved, and the operation complexity is reduced. The cutter bar is insulated and isolated from the outer sleeve, so that a high-frequency current loop on the high-frequency electricity and ultrasound dual-output multipurpose scissors is safer to use, and the safety of operation is improved.
Detailed Description
For a better understanding and explanation of the present invention, reference will now be made in detail to the present invention as illustrated in the accompanying drawings. The present invention is not limited to these specific embodiments only. Rather, modifications and equivalents of the invention are intended to be included within the scope of the claims.
It should be noted that numerous specific details are set forth in the following detailed description. It will be understood by those skilled in the art that the present invention may be practiced without these specific details. In the following detailed description of various embodiments, structures and components well known in the art are not described in detail in order to not unnecessarily obscure the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a high-frequency electric and ultrasonic dual-output multipurpose shears according to the present invention, which includes aclamping nozzle 32, atool bar 33, anouter sleeve 1, atrigger 9 and a handle housing 37, wherein:
themouthpiece 32 is rotatably connected to theouter sleeve 1 relative to thearbor 33, for example themouthpiece 32 is connected to theouter sleeve 1 by a pin about which themouthpiece 32 can rotate, it is clear that after a certain angle of rotation of themouthpiece 32 towards thearbor 33 the distance between themouthpiece 32 and thearbor 33 becomes smaller, which is sufficient to more firmly grip the body tissue when the distance between themouthpiece 32 and thearbor 33 is sufficiently small.
Theouter sleeve 1 is sleeved outside thecutter bar 33, the front end of thecutter bar 33 extends to the outside of theouter sleeve 1, the front end of thecutter bar 33, namely one end of thecutter bar 33 close to theclamping nozzle 32, is a part of thecutter bar 33 directly contacted with human tissues in an operation treatment scene, and ultrasonic energy transmitted through thecutter bar 33 is output at the front end of thecutter bar 33. Accordingly, the rear end of theshaft 33 extends inside theouter sleeve 1 toward the handle housing 37 (not shown in fig. 1), i.e., the end of theshaft 33 remote from theclamping jaw 32, and generally the rear end of theshaft 33 extends into the handle housing 37 and is connected to an ultrasonic transducer arranged in the handle housing 37. Thecutter bar 33 is insulated from theouter sleeve 1, and the method for fixing thecutter bar 33 can use a glue-coatedpin 15 shown in figure 2.
Thetrigger 9 is disposed on the handle housing 37, and the rotation of thetrigger 9 can drive theclamping nozzle 32 to rotate relative to thecutter bar 33, specifically, an important function of the handle housing 37 is to provide for an operator using the high-frequency electric and ultrasonic dual-output multipurpose shears to perform a holding operation, and the rotation of thetrigger 9 is usually achieved by the operator applying an external force to thetrigger 9.
Thenipple 32 is connected to the high-potential end of the high-frequency current circuit through theouter sleeve 1, and thecutter bar 33 is connected to the low-potential end of the high-frequency current circuit. When thetrigger 9 is not rotated, theclamping nozzle 32 and thecutter bar 33 are kept in a separated state, and because thecutter bar 33 is insulated from theouter sleeve 1, the high-frequency current cannot flow from theclamping nozzle 32 to thecutter bar 33, and the high-frequency current loop is in an open state; in the operation treatment scene, when theclamping nozzle 32 rotates towards thecutter bar 33 and the distance between theclamping nozzle 32 and thecutter bar 33 is small enough, the human tissue is clamped by the scissors-shaped structure formed by theclamping nozzle 32 and thecutter bar 33, theclamping nozzle 32 and thecutter bar 33 are electrically conducted through the human tissue, and the high-frequency current in theclamping nozzle 32 connected with the high-potential end of the high-frequency current loop flows to thecutter bar 33 connected with the low-potential end of the high-frequency current loop.
Preferably, theouter sleeve 1 is screwed and fixed relative to an ultrasonic transducer (not shown in fig. 1) inserted into the handle housing 37 by ascrewing structure 34 provided on the handle housing 37, so that theknife bar 33 is fixed relative to the ultrasonic transducer.
In order to more clearly illustrate the internal structure of the high-frequency electric and ultrasonic dual-output multi-purpose scissors provided by the present invention, please refer to fig. 1 and fig. 2, fig. 2 is an exploded view of an embodiment of the high-frequency electric and ultrasonic dual-output multi-purpose scissors according to the present invention, and the exploded view sequentially combines various components to form the structure of the high-frequency electric and ultrasonic dual-output multi-purpose scissors shown in fig. 1. To further explain in detail fig. 2, in order to facilitate assembly and disassembly for maintenance, the handle housing 37 is designed to be composed of theleft housing 2 and the right housing 3, and theleft housing 2 and the right housing 3 are combined to form an internal cavity for accommodating components that must be enclosed in the handle housing 37. Firstly, a section of theouter sleeve 1 inserted into thescrewing structure 34 is designed to be radially outward extended, so that the rear section of theouter sleeve 1 has a larger diameter than the front section thereof, and thescrewing structure 34 limits the rear section of theouter sleeve 1, so that theouter sleeve 1 and the handle housing 37 are relatively fixed. Typically, thescrewing structure 34 includes athumb wheel 4, atorsion spring 23, a first ratchet assembly 5 and asecond ratchet assembly 6 which are sleeved outside theouter sleeve 1 along the axial direction of theouter sleeve 1 and are combined together, thetorsion spring 23 provides a feedback force when thethumb wheel 4 is dialed, thethumb wheel 4 is fixedly connected with the first ratchet assembly 5, the first ratchet assembly 5 is meshed with thesecond ratchet assembly 6, and after thethumb wheel 4 is dialed, thethumb wheel 4 is tightly attached to and presses the rear section of theouter sleeve 1, so that theouter sleeve 1 is limited and fixed, since theouter sleeve 1 is connected and fixed with thecutter bar 33, thecutter bar 33 is also limited and fixed, and the first ratchet assembly 5 and thesecond ratchet assembly 6 mainly prevent the limiting state of thecutter bar 33 from being easily released.
Further, in order to allow the high-frequency current to flow smoothly to theouter sleeve 1, it is necessary to establish a conductive path to theouter sleeve 1 for the high-frequency current. Referring to fig. 1 to 3, fig. 3 is a schematic view of an internal conductive structure of the high-frequency electric and ultrasonic dual-output multipurpose scissors shown in fig. 2, as shown in fig. 2, aconductive ring 26 sleeved on thesecond ratchet assembly 6 is penetrated by ascrew 27, and since theouter sleeve 1 is located inside thesecond ratchet assembly 6, thescrew 27 can contact theouter sleeve 1, so that theconductive ring 26 is electrically connected to theouter sleeve 1 through thescrew 27. The frontconductive pin 13 is in contact with theconductive ring 26, and the frontconductive pin 13 is disposed in a cavity surrounded by theleft housing 2 and the right housing 3, that is, in the handle housing 37, and is relatively fixed to the right housing 3 through thefront needle seat 28. Due to theconductive ring 26, no matter theknife bar 33 is subjected to unidirectional ultrasonic vibration or composite ultrasonic vibration, theconductive pin 13 can continuously keep good contact with theconductive ring 26, and theconductive pin 13 and thewire ring 26 are kept in an electrically conductive state, so that theouter sleeve 1 can maintain a good high-frequency current conductive state, and cannot be easily disconnected due to the fact that the conductive device is separated from contact.
As shown in fig. 3, the frontconductive pin 13 is electrically conducted with the rearconductive pin 31 through awire 30, more specifically, thewire 30 connects thefront hub 28 and the rear hub 29, the rearconductive pin 31 is disposed on the rear hub 29, and the rear hub 29 is fixed relative to the right housing 3. Meanwhile, the rearconductive needle 31 is electrically conducted with the high-potential end of the high-frequency circuit, high-frequency current is transmitted to the rear needle base 29 from the rearconductive needle 31, transmitted to thefront needle base 28 and the frontconductive needle 13 through the rear needle base 29, transmitted to theouter sleeve 1 through theconductive ring 26 in contact with the frontconductive needle 13 through thescrew 27, further transmitted to theclamping nozzle 32 through theouter sleeve 1, and when theclamping nozzle 32 and thecutter bar 33 are in contact with human tissues together, transmitted to thecutter bar 33 through the human tissues, flowed to the ultrasonic transducer through thecutter bar 33, and finally output from the negative electrode of the ultrasonic transducer to a host device generating the high-frequency current, so that the closed high-frequency circuit is completed.
In order to control when the ultrasonic energy for cutting or coagulation outputted on theknife handle 33 is outputted, the rear end of theknife rod 33 is connected to one or more manual control button circuits, and the manual control button circuits are triggered by buttons arranged on the handle housing 37 to generate a manual control signal, as shown in fig. 2, the buttons are, for example, a button group 11 shown in fig. 2, the button group 11 may include acutting button 35 and acoagulation button 36 shown in fig. 1, and the corresponding manual control button circuit generates a corresponding manual control signal through the buttons in the button group 11, and the manual control signal is used for controlling a host computer for generating ultrasonic energy to generate corresponding ultrasonic energy. Referring to fig. 1 and 2, the manual control key circuit corresponding to thecutting key 35 and thecoagulation key 26 respectively is formed by combining aflexible circuit board 25, a conductivering mounting seat 14a, a manual control signalouter ring 17a and a manual control signalinner ring 18a, the manual control signalouter ring 17a and the manual control signalinner ring 18a are mounted on the conductivering mounting seat 14a, and theflexible circuit board 25 is electrically connected with the manual control signalouter ring 17a and the manual control signalinner ring 18a respectively to form manual control signal conductive loops for cutting and coagulation respectively.
In another embodiment, the manual signal conductive loop for cutting and coagulating blood can be constructed by other structures, please refer to fig. 4, fig. 4 is an exploded view of another embodiment of the high frequency electric and ultrasonic dual output multipurpose scissors according to the present invention, theconductive ring seat 14a in the embodiment shown in fig. 2 is replaced by aconductive needle seat 14b, the manual signalouter ring 17a is replaced by a manual signal outerconductive needle 17b, the manual signalinner ring 18a is replaced by a manual signal innerconductive needle 18b, the rest parts are the same as those in the embodiment shown in fig. 2, after the assembly and molding, the manual signal outerconductive needle 17b and the manual signal innerconductive needle 18b are arranged adjacent to each other, as shown in fig. 5, fig. 5 is a schematic diagram of the internal conductive structure of the high frequency electric and ultrasonic dual output multipurpose scissors shown in fig. 4, and the manual signal outerconductive needle 17b and the manual signal innerconductive needle 18b are respectively electrically connected to theflexible circuit board 25, and the manual signal conductive loop for cutting and coagulating blood can be formed respectively.
Referring to fig. 6 and fig. 1 to 5, fig. 6 is a schematic view of an insulating structure of a knife bar and an outer sleeve portion in each embodiment shown in fig. 1 to 5, wherein the high-frequency electric and ultrasonic dual-output multipurpose scissors shown in fig. 6 further includes aninner sleeve 38, and theinner sleeve 38 is sleeved outside theknife bar 33 and extends inside theouter sleeve 1. The front end of theinner sleeve 38 is connected with theclamping nozzle 32, the rear end of theinner sleeve 38 is connected with thetrigger 9 through a transmission structure, and the rotation of thetrigger 9 can drive theinner sleeve 38 to move axially through the transmission structure so as to drive theclamping nozzle 32 to rotate relative to thecutter bar 33;knife bar 33 is insulated frominner sleeve 38.
The transmission structure comprises a connectingrod 12, a slidingblock 10, awave spring 24, a sliding block connecting piece 7, afront retainer ring 16 and a rear retainer ring 8. Thetrigger 9 is connected to theslide 10 via a connectingrod 12, and theslide 10 is provided with a clamping end which is cooperatively connected to the slide connecting member 7, for example, a clamp-type clamping arm shown in fig. 2 or 4 and provided on theslide 10, and the clamp-type clamping arm is combined with the slide connecting member 7, so that the slide connecting member 7 can be moved synchronously by the movement of theslide 10. Thewave spring 24 is disposed between thefront retainer 16 and the rear retainer 8, and applies an elastic force to the slider connector 7 through thefront retainer 16. When thetrigger 9 is pressed down, thetrigger 9 drives theslider 10 to move through the connecting rod, further theslider 10 drives the slider connecting piece 7 to move synchronously, the moved slider connecting piece 7 is connected with the rear end of theinner sleeve 38, on one hand, theinner sleeve 38 is driven to move axially, the clampingnozzle 32 rotates towards thecutter bar 33, on the other hand, thefront check ring 16 extrudes thewave spring 24, and thewave spring 24 deforms. When thetrigger 9 is released, thewave spring 24 tends to deform from the squeezed state to the relaxed state, so that the rear end of theinner sleeve 38 moves toward thenozzle 32, and thenozzle 32 further rotates to return to the state of forming an angle with theknife bar 33. Optionally, a pressure spring 22 may be added on theslider 10, and one end of the pressure spring abuts against the slider and the other end abuts against the inner wall of the right housing 3, so as to enhance the elastic potential energy transmitted to theslider 10 and the slider connecting piece 7; thetrigger 9 can be further connected and fixed with theslide block 10 in a rotatable way through a slide block pin; the rear part of the trigger can be provided with asound plectrum 21, and thesound plectrum 21 can be deformed to generate sound by pressing thetrigger 9 so as to prompt whether thetrigger 9 is in a pressed state or not.
Due to the need to maintain insulation between theshaft 33 and theouter sleeve 1, theshaft 33 may be covered with a shaft insulation sleeve made of teflon, which may be formed by a firstshaft insulation sleeve 40 and a secondshaft insulation sleeve 41, when the sections of theshaft 33 have different diameters, for example, theshaft 33 has a thicker rear section and a thinner front section as shown in fig. 6, wherein the firstshaft insulation sleeve 40 covers the thicker rear section of theshaft 33 and the secondshaft insulation sleeve 41 covers the thinner front section of theshaft 33. Alternatively, the tool bar insulating sleeve may be replaced by an insulating coating formed on the outer surface of thetool bar 33, and the insulating coating is made of teflon.
In order to prevent theouter sleeve 1 from being contacted with an operator or a patient to cause electric shock injury due to the transmission of high-frequency current on theouter sleeve 1, theouter sleeve 1 is preferably wrapped with asleeve insulating sleeve 39 made of fluorinated ethylene propylene material, and thesleeve insulating sleeve 39 can be attached to theouter sleeve 1 in a heat shrinkage mode.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it will be obvious that the term "comprising" does not exclude other elements, units or steps, and the singular does not exclude the plural.
The high-frequency electric and ultrasonic dual-output multipurpose scissors are used together with the bipolar ultrasonic dual-output system, ultrasonic energy and a high-frequency current transmission path can be simultaneously provided on the high-frequency electric and ultrasonic dual-output multipurpose scissors, the ultrasonic energy and the high-frequency current are concentrated at the position of the knife head and are applied to tissues, and the advantages of the ultrasonic energy and the high-frequency current in a surgical operation can be integrated and the respective defects can be overcome by combining the reasonable control of the bipolar high-frequency ultrasonic dual-output surgical system, so that the cutting and coagulation efficiency is improved, the cutting coagulation effect is enhanced, the surgical efficiency is improved, and the surgical operation complexity is reduced. The cutter bar is insulated and isolated from the outer sleeve, so that a high-frequency current loop on the high-frequency electricity and ultrasound dual-output multipurpose scissors is safer to use, and the safety of operation is improved.
While the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not to be limited to the disclosed embodiment, but on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.