CN212165853U - Ultrasonic medical surgical instrument - Google Patents

Ultrasonic medical surgical instrument Download PDF

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Publication number
CN212165853U
CN212165853U CN201920623265.5U CN201920623265U CN212165853U CN 212165853 U CN212165853 U CN 212165853U CN 201920623265 U CN201920623265 U CN 201920623265U CN 212165853 U CN212165853 U CN 212165853U
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support
wire
waveguide
sealing
surgical instrument
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CN201920623265.5U
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钟鸣
杜荷军
岳计强
段亚州
刘艳容
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Hangzhou Kangji Medical Instrument Co Ltd
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Hangzhou Kangji Medical Instrument Co Ltd
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Abstract

The utility model belongs to the technical field of ultrasonic surgery medical system, especially, relate to an ultrasonic medical surgery apparatus. Including ultrasonic surgery apparatus and connect the supersound transducing device on ultrasonic surgery apparatus, ultrasonic surgery apparatus include rifle formula handle and set up waveguide, inner tube and the outer tube on rifle formula handle, the inner tube cover peripheral in the waveguide, the outer tube cover peripheral in the inner tube, ultrasonic transducing device include elongated handle formula shell and wear to locate the supersound transducing mechanism in the elongated handle formula shell, ultrasonic transducing device set up on rifle formula handle just ultrasonic transducing mechanism link to each other with the waveguide, ultrasonic transducing mechanism's front end link to each other through floating support mechanism with elongated handle formula shell. The utility model has the advantages of the ultrasonic wave is few at transmission in-process energy loss, and the waveguide supporting effect is good.

Description

Ultrasonic medical surgical instrument
Technical Field
The invention belongs to the technical field of ultrasonic surgical medical systems, and particularly relates to an ultrasonic medical surgical instrument.
Background
The ultrasonic surgical medical cutting hemostatic instrument comprises parts such as an ultrasonic generator, a transducer, an execution part and the like, wherein the transducer converts a high-frequency electric signal of the ultrasonic generator into ultrasonic mechanical energy for cutting and coagulating a patient part. The ultrasonic surgical medical cutting hemostatic instrument is used as a high-frequency electrosurgical operation tool, has the characteristics of less bleeding, less damage to surrounding tissues, quick postoperative recovery and the like, acts on human tissues to play a role in cutting and coagulating, does not cause side effects such as tissue drying and burning and the like, and does not have current to pass through a human body when an execution part works. In endoscopic surgery, ultrasonic mechanical energy needs to be transmitted to an execution part through an ultrasonic waveguide arranged in an inner tube, the ultrasonic wave propagates along the longitudinal sine wave of the ultrasonic waveguide, and the ultrasonic mechanical energy is attenuated due to surface waves, transverse waves and torsional waves in addition to longitudinal waves in the transmission process of the ultrasonic wave. Because the waveguide is long and subject to radial bending moments, supports are required in the axial direction, which should reduce the loss of ultrasonic energy propagation.
In the prior art, a support assembly is usually disposed between the inner tube and the ultrasonic waveguide, and the support assembly is usually made of a flexible material to reduce the attenuation of the sine wave in the ultrasonic wave and ensure sufficient mechanical energy of the ultrasonic wave to propagate to the execution site. However, in order to reduce the ultrasonic impedance, the support assembly is generally softer and has a poor support stiffness, and particularly, the support at the distal end of the ultrasonic waveguide has a stiffness substantially equal to the stiffness of the rest of the supports, and due to the special location of the support at the distal end of the ultrasonic waveguide, i.e., the outermost end of the support assembly, the support stiffness is not sufficient to easily cause unstable support, thereby affecting the propagation of the ultrasonic mechanical energy. Obviously, the structural design of the distal support of the ultrasonic waveguide in the prior art is not reasonable enough. On the other hand, since the distal end of the ultrasound waveguide is in close proximity to the site of administration, blood, body fluids, etc. need to be avoided from entering the inner tube during the procedure. Therefore, the requirement on the sealing performance of the distal support of the ultrasonic waveguide is high, but the structural design of the support in the prior art is not reasonable enough, the sealing performance is not high enough, a sufficient sealing effect is difficult to achieve, and blood, body fluid and the like can still enter the inner tube in the actual use process.
On the other hand, the flange of the ultrasonic transducer is disposed on the horn of the ultrasonic transducer and is typically connected to the horn in a one-piece construction. In order to mount the ultrasonic transducer, the horn is assembled via the flange, so that the ultrasonic transducer is mounted. Because the ultrasonic wave propagates in the amplitude transformer, if the installation structure is not reasonable enough, the ultrasonic wave is seriously attenuated in the transmission process, and the performance of the whole ultrasonic surgical medical cutting hemostatic instrument is influenced. In the prior art, the assembly structure design of the flange of the ultrasonic transducer is not reasonable enough, and the assembly rigidity of the flange is too high or too soft, so that the ultrasonic wave is easily attenuated.
Disclosure of Invention
The present invention has been made in view of the above problems, and an object of the present invention is to provide an ultrasonic medical surgical instrument capable of reducing attenuation of ultrasonic waves and having a good waveguide supporting effect. In order to achieve the purpose, the invention adopts the following technical scheme: this supersound medical surgery apparatus, include supersound surgical instrument and connect the supersound transducer on supersound surgical instrument, supersound surgical instrument include gun handle and set up waveguide, inner tube and the outer tube on gun handle, the inner tube cover peripheral in the waveguide, the outer tube cover peripheral in the inner tube, supersound transducer include elongated handle formula shell and wear to locate the supersound transducer mechanism in the elongated handle formula shell, supersound transducer set up on gun handle just supersound transducer mechanism link to each other with the waveguide, the front end of supersound transducer mechanism link to each other through unsteady supporting mechanism with elongated handle formula shell, waveguide distal end and inner tube between link to each other through sealed soft bearing structure, still be equipped with the soft bearing structure of a plurality of waveguides along the flexible bearing structure of nodal point of axial distribution between waveguide and inner tube, sealed soft bearing structure and the soft bearing structure of nodal point all be located the nodal point department of waveguide and sealed soft bearing knot And the structure is closest to the far end of the waveguide, and the support rigidity of the sealing soft support structure is greater than that of the node soft support structure.
In the ultrasonic medical surgical instrument, the sealing soft support structure comprises a rigid support structure which is arranged at the far end of the waveguide and protrudes outwards in the radial direction, a sealing support sleeve is sleeved on the periphery of the rigid support structure, an inner side sealing structure which can form a seal with the outer wall of the waveguide when the sealing support sleeve is arranged between the inner tube and the waveguide is arranged on the inner side of the sealing support sleeve, and an outer side sealing structure which can form a seal with the inner wall of the inner tube when the sealing support sleeve is arranged between the inner tube and the waveguide is arranged on the outer side of the sealing support sleeve.
In the ultrasonic medical surgical instrument, the rigid support structure comprises at least one rigid convex ring protruding out of the waveguide in the radial direction, the rigid convex ring and the waveguide are integrally formed, annular grooves corresponding to the rigid convex rings are formed in the sealing support sleeve in a one-to-one mode, and the rigid convex rings are embedded in the annular grooves.
In the ultrasonic medical surgical instrument, the number of the rigid convex rings is one, the number of the annular grooves is one, the shapes of the rigid convex rings are matched with the groove shapes of the annular grooves, and the outer surfaces of the rigid convex rings are tightly contacted with the groove walls of the annular grooves to form a part of the inner sealing structure.
In the ultrasonic medical surgical instrument, the cross section of the rigid convex ring is isosceles trapezoid, and the cross section of the annular groove is isosceles trapezoid.
In the above ultrasonic medical surgical instrument, the rigid support structure is located in the middle region of the sealing support sleeve, and the deformation capacity of the sealing support sleeve corresponding to the region of the rigid support structure is smaller than that of the sealing support sleeve corresponding to the regions of the two sides of the rigid support structure.
In the above ultrasonic medical surgical instrument, the inner sealing structure includes first annular sealing surfaces respectively provided on both sides of the rigid support structure, the first annular sealing surfaces being in close contact with the outer wall of the waveguide; the outer side sealing structure comprises a second annular sealing surface which is in close contact with the inner wall of the inner pipe.
In the above ultrasonic medical surgical instrument, the outer side of the sealing support sleeve is further provided with a sealing reinforcing structure capable of improving the sealing effect between the sealing support sleeve and the inner wall of the inner tube when the sealing support sleeve is installed between the inner tube and the waveguide.
In the ultrasonic medical surgical instrument, the seal reinforcing structure comprises at least one seal lip, the seal lip is positioned at one end of the seal support sleeve far away from the waveguide far end and can be tightly attached to the inner wall of the inner tube, and an annular accommodating groove is formed between the outer seal structure and the seal lip.
In the ultrasonic medical surgical instrument described above, the lip top of the seal lip is higher than the outer seal structure in a natural state, and the lip top is deformed by being pressed to form a face seal with the inner wall of the inner tube when the seal support sleeve is positioned between the inner tube and the waveguide.
In the ultrasonic medical surgical instrument, the node soft supporting structure comprises a node supporting ring, the inner side of the node supporting ring is provided with an inner side supporting structure which can be in circumferential annular continuous contact or circumferential annular interval contact with the outer wall of the waveguide, and the outer side of the node supporting ring is provided with an outer side supporting structure which can be in circumferential annular continuous contact or circumferential annular interval contact with the inner wall of the inner pipe.
In the above ultrasonic medical surgical instrument, the outer support structure includes at least two outer support portions extending radially outward, and outer ends of the outer support portions are respectively capable of contacting with an inner wall of the inner tube to form a support; or the outer support structure comprises an outer support ring surface positioned outside the nodal support ring.
In the ultrasonic medical surgical instrument, the outer supporting parts have the same shape and size and are uniformly distributed in the circumferential direction, and each outer supporting part is of a centripetal structure pointing to the central axis of the waveguide; the cross section of the outer supporting part is in an isosceles trapezoid shape.
In the ultrasonic medical surgical instrument described above, the inner support structure includes an inner support annulus located inside the nodal support ring; or the inner side supporting structure comprises at least two inner supporting parts extending outwards in the radial direction, and the outer ends of the inner supporting parts can be respectively contacted with the outer wall of the waveguide to form support.
In the above ultrasonic medical surgical instrument, the floating support mechanism includes a flange provided at the front end of the horn of the ultrasonic transduction mechanism, one side of the flange plate is provided with a cylindrical rear supporting seat, the amplitude transformer penetrates through the rear supporting seat, the other side of the flange plate is provided with a cylindrical amplitude transformer, the amplitude transformer penetrates through the front supporting seat, a front supporting gasket made of flexible material is arranged in the front supporting seat, one surface of the flange plate facing the front supporting gasket is propped against the front supporting gasket, the front end of the rear supporting seat enters the front supporting seat, a rear supporting gasket made of flexible material is arranged between the front end of the rear supporting seat and the flange plate, one surface of the flange plate facing the rear supporting gasket is propped against the rear supporting gasket, the front end of back supporting seat support and lean on in back supporting washer, thereby preceding supporting seat and back supporting seat link firmly each other and make the ring flange be located between preceding supporting washer and the back supporting washer.
In the ultrasonic medical surgical instrument, the rear support washer is cylindrical, a radially inward annular flange is arranged at one end, facing the front end of the rear support seat, of the rear support washer, the flange is located in the rear support washer, so that the outer edge of the flange is surrounded by the rear support washer, one side, facing the annular flange, of the flange abuts against one side of the annular flange, and the front end of the rear support seat abuts against the other side of the annular flange.
In foretell supersound medical treatment surgical instrument, the one end of back supporting pad towards back supporting seat front end is equipped with a plurality of storage tanks that distribute to the heart, back supporting seat front end a plurality of projections that distribute and outstanding in back supporting seat front end terminal surface to the heart have, storage tank and projection one-to-one set up and the projection inlay in the storage tank, back supporting seat front end terminal surface support and lean on in the turn-ups's of annular one side.
In the ultrasonic medical surgical instrument, the accommodating grooves are located at the outer edge of the rear support washer and are uniformly distributed in the circumferential direction; the convex bodies are positioned on the outer edge of the front end of the rear supporting seat and are uniformly distributed in the circumferential direction; the lateral wall of back supporting washer be equipped with a plurality of and the storage tank one-to-one cross the line groove, cross the line groove and extend along back supporting washer axial, the one end of crossing the line groove be linked together with the storage tank, the other end extends to the other end of back supporting washer, and wear to be equipped with the control line in one of them crosses the line groove.
In foretell supersound medical treatment surgical instrument, the front end inboard of back supporting seat is equipped with the first line hole of crossing that the slope set up, preceding supporting seat rear end inboard be equipped with the second that the slope set up and cross the line hole, first line hole and second cross the line hole and be eight style of calligraphy and distribute, thereby the control line cross the line hole and cross the peripheral entering front supporting seat of ring flange from the back supporting seat through first line hole, cross the line groove and second.
In the above ultrasonic medical surgical instrument, the top of the convex body has an inclined surface which gradually rises from the outside to the inside along the radial direction of the rear supporting seat; the shape of the containing groove is matched with that of the convex body.
In the ultrasonic medical surgical instrument, one surface of the flange plate, which faces the annular flanging, is provided with a plurality of positioning notches, one surface of the annular flanging, which faces the annular flanging, is provided with a plurality of positioning lugs, the positioning notches and the positioning lugs are in one-to-one correspondence, and the positioning lugs are embedded in the positioning notches; the positioning notches are located on the outer edge of the flange and are evenly distributed in the circumferential direction, and the positioning lugs are located between the annular flange and the inner wall of the rear supporting flange and are evenly distributed in the circumferential direction.
In the ultrasonic medical surgical instrument, an annular retainer ring is arranged in the front support seat, and one end of the rear support washer, which is far away from the front end of the rear support seat, abuts against the annular retainer ring; the one side that the annular retaining ring supported the packing ring towards the back is equipped with annular heavy groove, preceding support packing ring set up in annular heavy groove.
In the ultrasonic medical surgical instrument, the flange plate and the amplitude transformer are integrally formed, and the flange plate is arranged at the node of the amplitude transformer; the front supporting gasket and the rear supporting gasket are both made of elastic materials; the rear end of the front supporting seat and the front end of the rear supporting seat are fixedly connected in a sleeved mode, and an annular sealing ring is arranged at the sleeved position of the front supporting seat and the rear supporting seat.
In the ultrasonic medical surgical instrument, the rear end of an amplitude transformer is connected with a piezoelectric assembly, a wire inlet structure at the rear end of a long handle type shell is provided with a first power wire, a second power wire and a control wire, the piezoelectric assembly is sleeved with a wire winding seat fixed in the long handle type shell, one end of the wire winding seat is a wire winding disc, one surface of the wire winding disc is provided with a wire winding structure, the outer edge of the other surface of the wire winding disc is provided with a plurality of flaky bodies, one ends of the flaky bodies are connected with the wire winding disc, the other ends of the flaky bodies extend in the same direction perpendicular to the plane of the wire winding disc, the flaky bodies are distributed at intervals in the circumferential direction and surround to form an accommodating space, one end of the accommodating space is an opening for the piezoelectric assembly to enter the accommodating space, a strip-shaped interval extending from the wire winding disc to the opening is formed between two flaky bodies adjacent in the circumferential direction, the first power wire enters one strip-shaped, the second power line enters the other strip-shaped interval through the winding structure and is connected with the front part of the piezoelectric component, and the control line extends forwards along the peripheral axial direction of the piezoelectric component through the winding structure.
Among foretell supersound medical treatment surgical instrument, wire winding structure includes that a plurality of inner assemble to wire reel center and outer end radiation outside extended bar body, is equipped with unsettled card line body to bar body side direction extension in the outer end of bar body, the terminal surface of wire reel and card line body below between form the card line mouth, the quantity of bar spaced equals and card line mouth and bar interval respectively in circumference dislocation set.
In the ultrasonic medical surgical instrument, the first power line and the second power line respectively extend outwards from the central area of the wire spool along one of the strip bodies and laterally rotate to the corresponding strip intervals after passing through the corresponding wire clamping port, the wire passing through groove extending from the edge of the wire spool parallel to the strip intervals is arranged on one of the strip bodies, the wire passing through hole is arranged at the front end of the strip body provided with the wire passing through groove, the wire passing through groove and the wire passing through hole are correspondingly arranged, and the control wire extends outwards from the central area of the wire spool along one of the strip bodies and laterally rotates to the wire passing through groove after passing through the corresponding wire clamping port and axially extends forwards to the periphery of the floating support mechanism along the wire passing through groove and the wire passing through hole.
In the ultrasonic medical surgical instrument, the front end of the sheet body is respectively provided with a positioning part which extends obliquely outwards and then continues to extend along the same direction perpendicular to the plane of the wire spool, the outer sides of the positioning parts are respectively provided with a positioning structure, a convex strip protruding out of the inner wall of the positioning part is arranged on the inner side of the positioning part corresponding to the front end of the sheet body provided with the wire passing through groove, and the wire passing through hole is arranged in the convex strip; the inner end of the convex strip is provided with an open groove which is communicated with the through hole and faces to the inner side, so that one part of the through hole is a lateral slotted through hole, and the other part of the through hole is a circumferential closed through hole; the positioning structure comprises a clamping step arranged on the outer side of the positioning part, one side of the positioning part extends into the accommodating space in the circumferential direction, so that the width of the opening of the accommodating space is narrowed, and the clamping step is clamped with a clamping groove on the inner wall of the long handle type shell.
In the ultrasonic medical surgical instrument, the end of the sheet-like body connected to the wire spool is an arc-shaped sheet
The flaky bodies are uniformly distributed in the circumferential direction; the back ends of the strip-shaped intervals are communicated with gaps which are arranged on the edge of the wire spool and are positioned between two adjacent sheet-shaped bodies in the circumferential direction.
In the ultrasonic medical surgical instrument, a tubular body made of elastic material is arranged between the waveguide and the inner tube, longitudinal openings penetrating through two longitudinal ends of the tubular body are arranged on the side part of the tubular body so as to enable the cross section of the tubular body to be C-shaped, the inner diameter of the tubular body is larger than the outer diameter of the waveguide, and the outer diameter of the tubular body is smaller than the inner diameter of the inner tube.
Compared with the prior art, the invention has the advantages that:
1. the ultrasonic wave has less energy loss in the transmission process and good waveguide supporting effect.
2. The sealing effect of the sealing soft supporting structure is good, and the annular accommodating groove is formed in the sealing lip, so that buffering and temporary storage can be realized, and the leakage risk is further reduced.
3. The floating support can be provided for the flange plate of the ultrasonic transducer, so that the ultrasonic attenuation is reduced; the front supporting gasket and the rear supporting gasket are matched with each other, relative sealing installation of a flange plate of the ultrasonic transducer can be realized, and the floating support can play a sealing role in high-temperature and high-pressure sterilization so as to prevent water vapor from entering the transducer; in addition, the insulating elastic material is adopted for manufacturing, so that the electric insulation effect can be achieved, and the safety is improved.
4. The peripheral space and the axial space in the long handle type shell are reasonably utilized for circuit layout, so that the problems that circuits are entangled with each other, broken and easily damaged are solved; in addition, the ultrasonic transducer has a good heat dissipation effect, avoids the problem of line damage caused by a large amount of heat generated by long-time work, and can prevent the power supply line and the control line from interfering the vibration work of the ultrasonic transducer.
Drawings
FIG. 1 is a schematic view of the structure provided by the present invention;
FIG. 2 is an exploded view of a portion of the structure provided by the present invention;
FIG. 3 is a schematic view of a waveguide structure provided with a sealing flexible support structure and a nodal flexible support structure and corresponding to ultrasound waves according to the present invention;
FIG. 4 is a cross-sectional view of a sealed flexible support structure provided by the present invention;
FIG. 5 is a schematic view of a rigid support structure provided by the present invention;
FIG. 6 is a cross-sectional view of a seal support sleeve provided by the present invention;
FIG. 7 is a schematic perspective view of a sealing support sleeve provided by the present invention;
FIG. 8 is a perspective view of a sealed flexible support structure provided by the present invention;
FIG. 9 is a cross-sectional view of a nodal flexible support structure provided in accordance with the present invention;
FIG. 10 is a schematic perspective view of a flexible support structure of a node according to the present invention;
FIG. 11 is a schematic cross-sectional view of a nodal soft support structure provided in accordance with the present invention;
FIG. 12 is a schematic cross-sectional view of an ultrasonic transducer apparatus provided by the present invention;
FIG. 13 is an enlarged view of a portion of portion A of FIG. 12 in accordance with the present invention;
FIG. 14 is a schematic view of a front support structure provided by the present invention;
FIG. 15 is a perspective view of a horn with a flange provided by the present invention;
FIG. 16 is a schematic view of a rear support structure provided by the present invention;
FIG. 17 is a schematic view of a rear support gasket construction provided by the present invention;
FIG. 18 is a schematic view of another angle configuration of the rear support washer provided by the present invention;
FIG. 19 is a schematic view of a winding structure provided by the present invention;
FIG. 20 is a cross-sectional view of a rear support mount assembly provided by the present invention;
FIG. 21 is a schematic view of a bobbin seat according to the present invention;
FIG. 22 is a schematic view of another angle of the bobbin case according to the present invention;
FIG. 23 is a schematic view of a structure in which a tubular body is provided between a waveguide and an inner tube according to the present invention;
fig. 24 is a schematic structural view of a tubular body provided by the present invention.
In the figure, the ultrasonic Z, ultrasonic surgical instrument 1, ultrasonic transducer 2, gun-type handle 3, waveguide 4, inner tube 5, outer tube 6, elongated handle-type housing 7, floating support mechanism 8, sealing soft support structure 9, node soft support structure 10, node 11, rigid support structure 12, sealing support sleeve 13, outer sealing structure 14, rigid convex ring 15, annular groove 16, inner sealing structure 17, first annular sealing surface 18, second annular sealing surface 19, sealing reinforcement structure 20, sealing lip 21, annular receiving groove 22, lip top 23, inner support ring 24, node support ring 25, inner support structure 26, outer support structure 27, outer support 28, horn 30, flange 31, rear support seat 32, front support seat 33, front support ring 34, rear support ring 35, annular flange 36, receiving groove 37, convex body 38, wire passing groove 39, horn-shaped flange 36, receiving groove 37, horn-shaped support structure 32, ultrasonic surgical instrument, The control wire 40, the first wire passing hole 41, the second wire passing hole 42, the inclined surface 43, the positioning notch 44, the positioning bump 45, the annular retainer ring 46, the annular sinking groove 47, the annular seal ring 48, the piezoelectric assembly 49, the wire feeding structure 51, the first power wire 52, the second power wire 53, the wire winding seat 54, the wire winding disc 55, the wire winding structure 56, the sheet body 57, the accommodating space 58, the opening 59, the strip-shaped interval 60, the strip-shaped body 61, the wire clamping body 62, the wire clamping opening 63, the wire passing through groove 64, the wire passing through hole 65, the positioning part 66, the positioning structure 67, the protruding strip 68, the opening groove 69, the clamping step 70, the clamping groove 71, the notch 72, the tubular body 73 and the longitudinal opening 74.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. The ultrasonic medical surgical instrument comprises an ultrasonic surgical instrument 1 and an ultrasonic energy conversion device 2 connected to the ultrasonic surgical instrument 1, wherein the ultrasonic surgical instrument 1 comprises a gun-type handle 3, a waveguide 4 arranged on the gun-type handle 3, an inner tube 5 and an outer tube 6, the inner tube 5 is sleeved on the periphery of the waveguide 4, the outer tube 6 is sleeved on the periphery of the inner tube 5, the ultrasonic energy conversion device 2 comprises an elongated handle type shell 7 and an ultrasonic energy conversion device 2 arranged in the elongated handle type shell 7 in a penetrating manner, the ultrasonic energy conversion device 2 is arranged on the gun-type handle 3, the ultrasonic energy conversion device 2 is connected with the waveguide 4, the front end of the ultrasonic energy conversion device 2 is connected with the elongated handle type shell 7 through a floating supporting mechanism 8, the far end of the waveguide 4 is connected with the inner tube 5 through a sealed soft supporting structure 9, a plurality of waveguide 4 and waveguide 5 flexible supporting structures 10 distributed along the axial direction are further arranged between the waveguide 4 and the inner tube 5, the sealed flexible supporting structure 9 and the node flexible supporting structure 10 are both located at a node 11 of the waveguide 4, the sealed flexible supporting structure 9 is closest to the far end of the waveguide 4, and the supporting rigidity of the sealed flexible supporting structure 9 is greater than that of the node flexible supporting structure 10.
The ultrasonic energy conversion device 2 in the ultrasonic medical surgical instrument converts electric energy into high-frequency ultrasonic mechanical energy, and the high-frequency ultrasonic mechanical energy is transmitted to an execution part in a longitudinal sine wave mode through the waveguide 4 in the inner tube 5, and transverse waves, surface waves and the like on the waveguide 4 are different from the longitudinal sine wave direction, so that the longitudinal sine wave transmission is influenced, and the ultrasonic mechanical energy attenuation is accelerated. In the ultrasonic wave conduction process, since the ultrasonic wave is mainly propagated as a longitudinal sine wave, the displacement at the node 11 of the waveguide 4 is almost constant, and therefore, in the present embodiment, the sealing flexible support structure 9 and the node flexible support structure 10 are provided at the node 11 of the waveguide 4, so that the waveguide 4 has reliable support when the ultrasonic wave is conducted. And the inevitable surface waves, transverse waves and torsional waves on the waveguide 4 are eliminated to a certain extent through the support of the sealing soft support structure 9 and the node soft support structure 10, so that the conduction efficiency of the ultrasonic energy is improved, and the loss of the ultrasonic energy in the transmission process is reduced.
Specifically, the sealed flexible supporting structure 9 includes a rigid supporting structure 12 disposed at the distal end of the waveguide 4 and protruding radially outward, a sealed supporting sleeve 13 is sleeved on the periphery of the rigid supporting structure 12, an inner sealing structure 17 capable of forming a seal with the outer wall of the waveguide 4 when the sealed supporting sleeve 13 is installed between the inner tube 5 and the waveguide 4 is disposed on the inner side of the sealed supporting sleeve 13, and an outer sealing structure 14 capable of forming a seal with the inner wall of the inner tube 5 when the sealed supporting sleeve 13 is installed between the inner tube 5 and the waveguide 4 is disposed on the outer side of the sealed supporting sleeve 13. The inner side sealing structure 17, the outer side sealing structure 14 and the sealing support sleeve 13 are integrally formed by soft materials, gaps between the waveguide 4 and the pipe wall of the inner pipe 5 are filled through the inner side sealing structure 17 and the outer side sealing structure 14, meanwhile, the sealing support sleeve 13 is deformed after being extruded by the inner wall of the inner pipe 5, the inner side sealing structure 17 and the outer side sealing structure 14 are respectively and tightly attached to the waveguide 4 and the inner wall of the inner pipe 5, liquid outside the inner pipe 5 is prevented from entering the inner cavity of the inner pipe 5, transmission of ultrasonic waves on the waveguide 4 is prevented, and meanwhile, the liquid outside the inner pipe 1 is prevented from entering the inner cavity of the inner pipe.
Preferably, the rigid support structure 12 comprises at least one rigid collar 15 protruding radially from the waveguide 4, said rigid collar 15 being integrally formed with the waveguide 4, so that the rigid collar 15 is integral with the waveguide 4. The rigid collar 15 is formed integrally with the waveguide 4 to reduce manufacturing costs. The rigid collar 15 and the waveguide 4 may be manufactured separately and then fixedly connected by gluing, welding or interference, or other methods known to those skilled in the art.
The inner side of the sealing support sleeve 13 is provided with annular grooves 16 which are arranged corresponding to the rigid convex rings 15 one by one, and the rigid convex rings 15 are embedded in the annular grooves 16. The rigid convex ring 15 is embedded in the annular groove 16, and the rigid convex ring and the outer wall of the waveguide 4 and the inner wall of the inner pipe 5 jointly eliminate the degree of freedom of the sealing support sleeve 13, so that the sealing support sleeve 13 is fixedly connected with the waveguide 4. Preferably, in this embodiment, the number of the rigid protruding ring 15 is one, the number of the annular groove 16 is one, and the outer shape of the rigid protruding ring 15 is adapted to the groove shape of the annular groove 16, so that the rigid protruding ring 15 is clamped into the annular groove 16 to form a tight fit. The outer surface of the rigid convex ring 15 is tightly contacted with the groove wall of the annular groove 16 to form a part of the inner sealing structure 17. Liquid outside the inner tube 5 is prevented from entering the interior of the inner tube 5 through the gap between the waveguide 4 and the annular groove 16.
Further, the cross section of the rigid convex ring 15 is isosceles trapezoid, and the cross section of the annular groove 16 is isosceles trapezoid. Preferably, the top of the rigid convex ring 15 is a plane, and the bottom of the annular groove 16 is a plane, so that the rigid convex ring 15 is easily matched with the annular groove 16, and when the assembly is reduced, uniform and arc-shaped extrusion force perpendicular to the inner side wall of the inner pipe 5 is simultaneously applied to the side wall of the sealing support sleeve 13, so that the stress concentration is avoided, the service life of the sealing support sleeve 13 is prevented from being influenced, and the extrusion force is completely applied to the extrusion of the sealing support sleeve 13 on the pipe wall of the inner pipe 5.
Further, the rigid support structure 12 is located in the middle region of the sealing support sleeve 13, and the deformation capacity of the sealing support sleeve 13 corresponding to the region of the rigid support structure 12 is smaller than the deformation capacity of the sealing support sleeve 13 corresponding to the region of the two sides of the rigid support structure 12. When the sealing support sleeve 13 is deformed by external force, the parts of the sealing support sleeve 13 corresponding to the two side areas of the rigid support structure 12 deform before the middle area of the sealing support sleeve 13, so that the external force is absorbed, the deformation resistance of the part of the sealing support sleeve 13 corresponding to the rigid support structure 12 is realized, the middle part of the sealing support sleeve 13 is always attached to the inner wall of the inner pipe 1, and the sealing performance is improved. Preferably, the seal support sleeve 13 is integrally formed of an elastic material. The deformation of the sealing support sleeve 13 after being stressed is adapted to the waveguide 4 and the inner wall of the inner tube 5, so that a gap is avoided, and meanwhile, the sealing support sleeve 13 obtains deformation elasticity to resist the pressure of the external liquid of the inner tube 5 acting on the sealing support sleeve 13.
Preferably, the rigid support structure 12 is located at the node 11 of the waveguide 4. Since the ultrasonic wave propagates in a longitudinal sine wave manner, the displacement at the node 11 of the waveguide 4 is almost constant, and therefore in the present embodiment, the rigid support structure 12 is provided at the node 11 of the waveguide 4, so that the waveguide 4 has a reliable support when propagating the ultrasonic wave. The inevitable surface waves, transverse waves and torsional waves on the waveguide 4 are consumed to a certain extent through the support of the rigid support structure 12 and the sealing support sleeve 13, so that the propagation efficiency of the ultrasonic energy is improved, and the loss of the ultrasonic energy in the propagation process is reduced.
The inner sealing structure 17 comprises first annular sealing surfaces 18 respectively arranged at two sides of the rigid supporting structure 12, and the first annular sealing surfaces 18 are tightly contacted with the outer wall of the waveguide 4; the annular groove 16 cooperates with the rigid support structure 12 such that the waveguide 4 remains in position relative to the sealing support sleeve 13 when propagating ultrasonic waves. Preferably, the outer sealing structure 14 comprises a second annular sealing surface 19, said second annular sealing surface 19 being in close and gapless contact with the inner wall of the inner tube 5. Liquid outside the inner tube 5 is prevented from entering the inner tube through the gap between the second annular sealing surface 19 and the inner wall of the inner tube 5.
The outer side of the sealing support sleeve 13 is further provided with a sealing reinforcing structure 20 which can improve the sealing effect between the sealing support sleeve 13 and the inner wall of the inner tube 5 when the sealing support sleeve 13 is installed between the inner tube 5 and the waveguide 4. The seal reinforcing structure 20 comprises at least one sealing lip 21, the sealing lip 21 is positioned at one end of the seal supporting sleeve 13 far away from the far end of the waveguide 4 and can be tightly attached to the inner wall of the inner pipe 5, and an annular accommodating groove 22 is formed between the outer sealing structure 14 and the sealing lip 21. A person skilled in the art can provide two or more sealing lips 21 depending on the sealing requirements. Further, the lip top 23 of the seal lip 21 is higher than the outer seal structure 14 in a natural state, and the lip top 23 is deformed by being pressed to form a face seal with the inner wall of the inner tube 5 when the seal support sleeve 13 is positioned between the inner tube 5 and the waveguide 4. So that the lip top 23 of the sealing lip 21 is pressed to obtain a larger deformation amount when the seal support sleeve 13 is installed between the inner tube 5 and the waveguide 4, thereby being more closely attached to the inner wall of the inner tube 5 than to the outer sealing structure 14, and further preventing a flow gap from occurring between the sealing lip 21 and the inner wall of the inner tube 5.
Preferably, in the present embodiment, the inner side of the node support ring 25 has an inner support structure 26 capable of making continuous circumferential contact with the outer wall of the waveguide 4, and the node support ring 25 makes continuous contact with the waveguide 4. Preferably, the outer side of the node support ring 25 has an outer support structure 27 which is in circumferentially spaced contact with the inner wall of the inner tube 5. To reduce acoustic impedance, the outer support structure 27 is distributed centripetally in segments to reduce area to achieve reduced ultrasonic impedance. And the nodal support ring 25 does not need to take into account the need to prevent external liquids from entering the inner tube 4. It will be appreciated by those skilled in the art that the inner support structure 26 is in circumferentially spaced contact with the outer wall of the waveguide 4 and the outer support structure 27 is in circumferentially continuous contact with the inner wall of the inner tube 5.
Preferably, the node support ring 25 is made of an elastic material by integral molding, and the invention does not limit the specific type of the elastic material, and the elastic material can be a rubber material or a silica gel material; the node support ring 25 is located at a node 11 of the waveguide 4, the node 11 being the minimum or zero intersection of the standing wave of the vibrational motion, and the ultrasonic wave propagates in a sine wave along the longitudinal direction of the waveguide 4, so that the ultrasonic impedance can be further reduced by locating the node support ring 25 at the node 11.
The outer support structure 27 comprises at least two outer support parts 28 extending radially outwards, and the outer ends of the outer support parts 28 can respectively contact with the inner wall of the inner pipe 5 to form support; in this embodiment, the number of the outer supporting structures 27 is preferably four, and the outer ends of the outer supporting portions 28 can be respectively contacted with the inner wall of the inner tube 5 to form a support, so as to obtain a smaller ultrasonic impedance and reduce the loss of ultrasonic mechanical energy. Those skilled in the art may also employ the outer support structure 27 as an outer support ring surface located outside of the nodal support ring 25.
Preferably, the outer supporting portions 28 have the same shape and size and are uniformly distributed in the circumferential direction, and the outer supporting portions 28 are in a centripetal structure pointing to the central axis of the waveguide 4, so that the acting force of the outer supporting portions 28 on the inner wall of the inner tube 5 is perpendicular to the tangent of the acting point, and the node support ring 25 is prevented from being parallel to the node support ring 25 due to the reaction force of the inner wall of the inner tube 5, and the node support ring 25 is prevented from rotating to lose the support function. Preferably, the cross section of the outer support 28 is isosceles trapezoid, which enhances the connection strength between the outer support 28 and the node support ring 25. At the same time, the reaction force applied to the outer support portion 28 by the inner wall of the inner pipe 5 is made uniform on both sides.
Preferably, the inboard support structure 26 includes an inner support annulus 24 located inboard of the nodal support ring 25; the inner support torus 24 is in continuous circumferential contact with the waveguide 4 so that evanescent waves in any direction along the waveguide 4 are cancelled by the inner support torus. The inner support structure 26 may also be adapted by those skilled in the art to include at least two radially outwardly extending inner support portions, the outer ends of which are respectively capable of contacting and supporting the outer wall of the waveguide 4 in order to reduce the ultrasonic impedance. Preferably, the inner support portions are of the same shape and size and are uniformly distributed in the circumferential direction, and each inner support portion is of a centripetal structure pointing to the central axis of the waveguide 4. Meanwhile, each inner supporting part 27 is of a centripetal structure pointing to the central axis of the waveguide 4, so that the acting force of the inner supporting part 27 on the inner wall of the inner tube 5 is perpendicular to the tangent line of the acting point, and the anti-acting force of the inner wall of the inner tube 5 on the node supporting ring 25 is prevented from being not parallel to the node supporting ring 25, so that the node supporting ring 25 rotates and loses the supporting function.
The floating support mechanism 8 comprises a flange plate 31 arranged at the front end of a horn 30 of the ultrasonic transducer 2, one surface of the flange plate 31 is provided with a cylindrical rear support seat 32 and the horn 30 penetrates through the rear support seat 32, the other surface of the flange plate 31 is provided with a cylindrical horn 30 penetrating through the front support seat 33, the front support seat 33 is internally provided with a front support gasket 34 made of a flexible material, one surface of the flange plate 31 facing the front support gasket 34 abuts against the front support gasket 34, the front end of the rear support seat 32 enters the front support seat 33, a rear support gasket 35 made of a flexible material is arranged between the front end of the rear support seat 32 and the flange plate 31, one surface of the flange plate 31 facing the rear support gasket 35 abuts against the rear support gasket 35, the front end of the rear support seat 32 abuts against the rear support gasket 35, the front support seat 33 and the rear support seat 32 are fixedly connected with each other, so that the flange plate 31 is clamped between the front support gasket 34 and the rear support gasket 35 Between the support washers 35. In this embodiment, the specific type of the flexible material is not limited, and an insulating elastic material, preferably a rubber material, may be used, so as to perform an electrical insulation function, and perform an effective sealing function during high-pressure and high-temperature sterilization, so as to prevent external high-temperature water vapor and the like from entering the ultrasonic transduction cavity.
The elastic front support gasket 34 and the elastic rear support gasket 35 are used for clamping and fixing the amplitude transformer 30 to form a floating support for the amplitude transformer 30, when the ultrasonic transducer converts a high-frequency electric signal into ultrasonic mechanical energy to conduct ultrasonic on the amplitude transformer 30, the ultrasonic wave forces the amplitude transformer 30 to vibrate, the amplitude transformer 30 vibrates and extrudes the front support gasket 34 and the rear support gasket 35 to deform the front support gasket 34 and the rear support gasket 35, sufficient vibration space is ensured when the amplitude transformer 30 is pushed to vibrate by the ultrasonic wave, and the amplitude transformer 30 is prevented from being locked by the front support seat 33 and the rear support seat 32. The rear support washer 35 is cylindrical and has a radially inwardly directed annular flange 36 at the end of the rear support washer 35 facing the front end of the rear support plate 32, said flange 31 being located within the rear support washer 35 such that the outer edge of the flange 31 is surrounded by the rear support washer 35. Preferably, one side of the flange 31 facing the annular flange 36 abuts against one side of the annular flange 36, and the front end of the rear support base 32 abuts against the other side of the annular flange 36.
Further, rear support ring 35 is equipped with a plurality of storage grooves 37 that distribute to the heart towards the one end of rear support seat 32 front end, rear support seat 32 front end have a plurality of distribute to the heart and outstanding in the convex body 38 of rear support seat 32 front end terminal surface, storage grooves 37 and convex body 38 one-to-one set up and convex body 38 inlay in storage grooves 37, rear support seat 32 front end terminal surface support and lean on in the one side of annular turn-ups 36. The receiving grooves 37 correspond to the protrusions 38 one by one, and the protrusions 38 lock the corresponding receiving grooves 37, so that the rear support washer 35 is fixedly connected to the rear support base 32 under the limiting action of the protrusions 38 when the rear support washer receives the rotational force of the flange plate 31. Further, the receiving grooves 37 are located at the outer edge of the rear support washer 35 and are uniformly distributed in the circumferential direction; the convex bodies 38 are positioned on the outer edge of the front end of the rear supporting seat 32 and are uniformly distributed in the circumferential direction; the protrusion 38 protrudes from the outer edge of the front end of the rear supporting seat 32 and is inserted into the receiving groove 37, so that the front end of the rear supporting seat 32 is tightly attached to the surface of the rear end of the rear supporting washer 35, thereby improving the tightness of the fit.
Preferably, the outer side wall of the rear support washer 35 is provided with a plurality of wire passing grooves 39 corresponding to the accommodating grooves 37 one to one, the wire passing grooves 39 axially extend along the rear support washer 35, one end of each wire passing groove 39 is communicated with the accommodating groove 37, the other end of each wire passing groove 39 extends to the other end of the rear support washer 35, and a control wire 40 penetrates through one of the wire passing grooves 39. In the assembling process, since any receiving groove 37 corresponds to one wire passing groove, the rear support washer 35 can be paired with any protrusion 38 through any receiving groove 37, so that all receiving grooves 37 can be paired with the corresponding protrusions 38 to form the plug-in connection. The universality of parts is improved, the assembly speed is greatly accelerated, and the generation efficiency is improved.
Rear support 32's front end inboard is equipped with the first line hole 41 of crossing that the slope set up, front support 33 rear end inboard be equipped with the second that the slope set up and cross line hole 42, first cross line hole 41 and second cross line hole 42 and be eight characters type distribution, control line 40 thereby cross line hole 41, cross line groove 39 and second and cross line hole 42 and cross the peripheral entering front support 33 that gets over ring flange 31 from rear support 32. So that the control wire 40 is not influenced by the flange 31, resulting in poor circuit contact and affecting normal use. The top of the convex body 38 is provided with a slope 43, and the slope 43 gradually rises from outside to inside along the radial direction of the rear supporting seat 32; the shape of the receiving groove 37 is adapted to the shape of the protrusion 38. In the process of assembling the rear support washer 35 and the flange plate 31, the high position of the top of the convex body 38 is firstly guided into the accommodating groove 37, the inclined surface 43 at the top of the convex body 38 is gradually guided into the accommodating groove 37 along with the compression between the rear support washer 35 and the flange plate 31, and the convex body 38 is initially guided into the accommodating groove 37 with small volume as the guide for integrally guiding the convex body 38 in a way that the high position of the top of the convex body 38 is locally guided in advance, so that the convex body 38 is more easily guided into the corresponding accommodating groove 37, the assembly difficulty is reduced, and the production efficiency is improved.
One surface of the flange plate 31 facing the annular flange 36 is provided with a plurality of positioning notches 44, one surface of the annular flange 36 facing the annular flange 36 is provided with a plurality of positioning lugs 45, the positioning notches 44 correspond to the positioning lugs 45 one by one, and the positioning lugs 45 are embedded in the positioning notches 44; the flange plate 31 limits the rotation and the translation of the rear support gasket 35 through the insertion fit of the positioning notches 44 and the positioning protrusions 45, so that the relative position of the rear support gasket 35 and the flange plate 31 is kept stable. Preferably, the positioning notches 44 are located on the outer edge of the flange 31 and are evenly distributed in the circumferential direction, and the positioning protrusions 45 are located between the annular flange 36 and the inner wall of the rear support gasket 35 and are evenly distributed in the circumferential direction. The positioning notches 44 and the positioning lugs 45 are distributed centripetally, so that when the rear support gasket 35 is subjected to acting forces in various directions, the rear support gasket is limited by the displacement of one or more groups of positioning notches 44 and positioning lugs 45, and the relative position of the rear support gasket 35 and the flange plate 31 is guaranteed to be unchanged.
An annular retainer ring 46 is arranged in the front supporting seat 33, and one end of the rear supporting gasket 35, which is far away from the front end of the rear supporting seat 32, abuts against the annular retainer ring 46; after the front support seat 33 is completely connected with the rear support seat 32, the annular retainer ring 46 presses the rear support washer 35 against the rear support seat 32, so as to limit the displacement of the rear support washer 35 in the axial direction of the horn 30, and prevent the rear support washer 35 from losing the support of the rear support seat 35 when being subjected to ultrasonic waves, so that the flange plate 31 loses effective clamping.
The annular retainer 46 is provided with an annular recess 47 on a side facing the rear support washer 35, and the front support washer 34 is disposed in the annular recess 47. The annular sinking groove 47 limits the displacement of the front support washer 34 and presses the front support washer 34 against the flange plate 31 through the bottom of the annular sinking groove 47, so that the flange plate 31 is clamped by the rear support washer 35 and the front support washer 34 together, and the flange plate 31 and the amplitude transformer 30 are connected in a relatively closed and effective floating manner.
The flange plate 31 and the amplitude transformer 30 are integrally formed, the flange plate 31 is arranged at the node of the amplitude transformer 30, ultrasonic waves are conducted along the longitudinal sine wave of the amplitude transformer 30, the amplitude at and near the node of the amplitude transformer 30 is minimum, the flange plate 31 is arranged at the node of the amplitude transformer 30 and clamped by the front supporting gasket 34 and the rear supporting gasket 35, the front supporting gasket 34 and the rear supporting gasket 35 are minimum in ultrasonic acting force, the reaction force on the flange plate 31 is minimum, the ultrasonic conduction impedance is greatly reduced, and the loss of ultrasonic energy conduction is reduced. On the other hand, in the transmission process of the ultrasonic wave, besides the longitudinal wave, the surface wave, the transverse wave and the torsional wave cause attenuation of the ultrasonic mechanical energy, and the flange 31 is arranged at the node of the amplitude transformer 30 and supported by clamping, so that noise waves such as the transverse wave, the surface wave and the torsional wave on the amplitude transformer 30 are effectively lost, and the attenuation of the ultrasonic energy on the amplitude transformer 30 is reduced. The front support washer 34 and the rear support washer 35 are both made of an elastic material; the rear end of the front supporting seat 33 and the front end of the rear supporting seat 32 are fixedly connected in a sleeved mode, an annular sealing ring 48 is arranged at the sleeved position of the front supporting seat 33 and the rear supporting seat 32, and external water vapor and the like are prevented from entering the ultrasonic transducer.
The rear end of the amplitude transformer 30 is connected with a piezoelectric assembly 49, a wire inlet structure 51 at the rear end of the long handle type shell 50 is provided with a first power wire 52, a second power wire 53 and the control wire 40, the piezoelectric assembly 49 is sleeved with a wire winding seat 54 fixed in the long handle type shell 50, one end of the wire winding seat 54 is a wire winding disc 55, one surface of the wire winding disc 55 is provided with a wire winding structure 56, the outer edge of the other surface of the wire winding disc 55 is provided with a plurality of flaky bodies 57, one end of each flaky body 57 is connected with the wire winding disc 55, the other end of each flaky body is perpendicular to the plane of the wire winding disc 55 and extends in the same direction, each flaky body 57 is distributed at intervals in the circumferential direction and surrounds to form an accommodating space 58, one end of each accommodating space 58 is the wire winding disc 55, the other end of each flaky body forms an opening 59 for the piezoelectric assembly 49 to enter the accommodating space 58, a, the first power line 52 is routed through the wire structure 56 into one of the bar-shaped spaces 60 and is connected to the middle of the piezoelectric element 49, the second power line 53 is routed through the wire structure 56 into the other bar-shaped space 60 and is connected to the front of the piezoelectric element 49, and the control line 40 extends axially forward along the periphery of the piezoelectric element 49 through the wire structure 56.
The piezoelectric assembly 49 extends into the accommodating space 58 through the opening 59, so that the wire winding seat 54 is mounted on the long handle type shell 50, the first power wire 52, the second power wire 53 and the control wire 40 can extend out of the wire winding disc 55 through the strip-shaped interval 60 between the two adjacent sheets 57, and the wire winding structure 56 is wound and fixed on the first power wire 52, the second power wire 53 and the control wire 40, so that the wire winding seat 54 is arranged in the long handle type shell 50, the wire winding seat 54 is provided with the wire winding structure 56 on one side, and the wire winding disc 55 with the sheets 57 arranged at intervals in the circumferential direction on the other side, regular arrangement of the first power wire 52, the second power wire 53 and the control wire 40 is simply and conveniently realized, and the problems of mutual entanglement of lines and pulling and breaking of lines in the dismounting process are avoided.
Wire winding structure 56 includes that a plurality of inner converge to wire reel 55 center and outer end radiation outside extending's bar body 61, is equipped with unsettled and card line body 62 to bar body 61 lateral extension in the outer end of bar body 61, wire reel 55's terminal surface and card line body 62 below between form card line mouth 63, the quantity of bar interval 60 equal and card line mouth 63 and bar interval 60 respectively in circumference dislocation set. The rear end of the bar-shaped interval 60 is communicated with a gap which is arranged at the edge of the wire spool 55 and is positioned between two adjacent sheet-shaped bodies 57 in the circumferential direction, and the wire spool 55 is provided with a through hole which corresponds to the wire clamping port 63 and is communicated with the two surfaces of the wire spool 55. The circuit enters the winding structure 56 through the wire inlet structure 51, extends to the end face of the wire spool 55 through the wire clamping port 63, and then sequentially extends out through the notch and the bar-shaped interval 60, preferably, the distance between the wire clamping body and the end face of the wire spool 55, namely, the width of the wire clamping port 63 is smaller than the outer diameter of the circuit, so that the circuit can be in interference fit with the wire clamping port 63 to complete the fixation of the circuit.
The first power line 52 and the second power line 53 respectively extend outwards from the central area corresponding to the wire spool 55 along one of the strip bodies 61 and laterally rotate to the corresponding strip-shaped interval 60 after passing through the corresponding wire clamping opening 63, so that one power line corresponds to one wire clamping opening 63 and one strip-shaped interval 60, and the purpose of mutual isolation between the power lines is achieved. A wire passing through groove 64 extending from the edge of the wire spool 55 in parallel to the strip-shaped interval 60 is arranged on one of the sheet-shaped bodies 57, a wire passing through hole 65 is arranged at the front end of the sheet-shaped body 57 provided with the wire passing through groove 64, the wire passing through groove 64 is arranged corresponding to the wire passing through hole 65, and the control wire 40 extends outwards from the central area corresponding to the wire spool 55 along one of the strip-shaped bodies 61, passes through the corresponding wire clamping port 63, turns to the wire passing through groove 64 in the rear side direction and extends forwards to the periphery of the floating support mechanism 8 along the axial direction of the wire passing through groove 64 and the wire passing through hole 65. The through line groove 64 and the through line hole 65 are combined to form a line channel which is independent relative to the strip-shaped interval 60 and the notch, so that the control line and the power supply line are respectively suitable for extending from the wire spool 55 and the wire winding structure 56, the relative independence between the two lines is improved, and the problems that the lines are entangled with each other and broken are further prevented.
The front ends of the sheet bodies 57 are respectively provided with positioning portions 66 which extend obliquely outwards and then continue to extend in the same direction along a plane perpendicular to the plane of the wire spool 55, and the outer sides of the positioning portions 66 are respectively provided with positioning structures 67, so that the quick positioning and installation of the wire spool base are facilitated. A convex strip 68 protruding from the inner wall of the positioning part 66 is arranged at the inner side of the positioning part 66 at the front end of the sheet body 57 provided with the wire passing through groove 64 corresponding to the wire passing through groove 64, and the wire passing through hole 65 is arranged in the convex strip 68; the inner end of the convex strip 68 is provided with an open groove 69 which is communicated with the through hole 65 and faces to the inner side, so that one part of the through hole 65 is a lateral slotted through hole, and the other part of the through hole 65 is a circumferential closed through hole; the ribs 68 serve to guide and reinforce the wire itself and prevent the wire from twisting or bending out of position during use.
Preferably, the positioning structure 67 includes a locking step 70 disposed outside the positioning portion 66, the positioning portion 66 is in an arc-shaped sheet shape, preferably, the arc-shaped cross section of the positioning portion 66 and the arc-shaped cross section of the sheet-shaped body 57 can form a concentric arc, so that the axial line of the positioning portion 66 and the axial line of the sheet-shaped body 57 can coincide, the stability of the entire bobbin seat 54 during use is improved, one side of the positioning portion 66 circumferentially extends into the accommodating space 58 to narrow the width of the opening of the accommodating space 58, and the locking step 70 is locked with the locking groove 71 on the inner wall of the elongated handle-type housing 50.
Further, the one end that platelike body 57 links to each other with wire reel 55 is the arc slice, platelike body 57 at circumferencial direction evenly distributed, around establishing first power cord 52, second power cord 53 and control line 40 after, have great heat dissipation space like this, avoid taking place long-time work and a large amount of heat that produce cause the problem of circuit damage, can prevent first power cord 52, second power cord 53 and control line 40 interference ultrasonic transducer vibration work simultaneously. Preferably, the rear end of the strip-shaped space 60 is communicated with a notch 72 which is arranged at the edge of the wire spool 55 and is positioned between two circumferentially adjacent sheet-shaped bodies 57.
Preferably, a tubular body 73 made of an elastic material is arranged between the waveguide 4 and the inner tube 5, a longitudinal opening 74 penetrating through both longitudinal ends of the tubular body 73 is arranged at the side part of the tubular body 73 so as to make the cross section of the tubular body 73 in a C shape, the inner diameter of the tubular body 73 is larger than the outer diameter of the waveguide 4, and the outer diameter of the tubular body 73 is smaller than the inner diameter of the inner tube 5.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims. Although terms are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims (29)

1. An ultrasonic medical surgical instrument comprises an ultrasonic surgical instrument (1) and an ultrasonic energy conversion device (2) connected to the ultrasonic surgical instrument (1), wherein the ultrasonic surgical instrument (1) comprises a gun-type handle (3), a waveguide (4) arranged on the gun-type handle (3), an inner tube (5) and an outer tube (6), the inner tube (5) is sleeved on the periphery of the waveguide (4), the outer tube (6) is sleeved on the periphery of the inner tube (5), the ultrasonic energy conversion device (2) comprises an elongated handle type shell (7) and an ultrasonic energy conversion device (2) penetrating through the elongated handle type shell (7), the ultrasonic energy conversion device (2) is arranged on the gun-type handle (3) and the ultrasonic energy conversion device (2) is connected with the waveguide (4), and is characterized in that the front end of the ultrasonic energy conversion device (2) is connected with the elongated handle type shell (7) through a floating support mechanism (8), the waveguide flexible support structure is characterized in that the far end of the waveguide (4) is connected with the inner tube (5) through a sealed flexible support structure (9), a plurality of node flexible support structures (10) which are axially distributed on the waveguide (4) are further arranged between the waveguide (4) and the inner tube (5), the sealed flexible support structure (9) and the node flexible support structures (10) are both located at nodes (11) of the waveguide (4), the sealed flexible support structure (9) is nearest to the far end of the waveguide (4), and the support rigidity of the sealed flexible support structure (9) is greater than that of the node flexible support structure (10).
2. The ultrasonic medical surgical instrument as claimed in claim 1, wherein the sealing soft support structure (9) comprises a rigid support structure (12) which is arranged at the distal end of the waveguide (4) and protrudes radially outwards, a sealing support sleeve (13) is sleeved on the periphery of the rigid support structure (12), an inner sealing structure (17) which can form a seal with the outer wall of the waveguide (4) when the sealing support sleeve (13) is arranged between the inner tube (5) and the waveguide (4) is arranged on the inner side of the sealing support sleeve (13), and an outer sealing structure (14) which can form a seal with the inner wall of the inner tube (5) when the sealing support sleeve (13) is arranged between the inner tube (5) and the waveguide (4) is arranged on the outer side of the sealing support sleeve (13).
3. The ultrasonic medical-surgical instrument as claimed in claim 2, wherein the rigid support structure (12) comprises at least one rigid male ring (15) protruding radially from the waveguide (4), the rigid male ring (15) is formed integrally with the waveguide (4), an annular groove (16) corresponding to the rigid male ring (15) is formed inside the sealing support sleeve (13), and the rigid male ring (15) is inserted into the annular groove (16).
4. The ultrasonic medical surgical instrument as claimed in claim 3, wherein the number of the rigid male rings (15) is one, the number of the annular grooves (16) is one, the outer shape of the rigid male rings (15) is adapted to the groove shape of the annular grooves (16), and the outer surfaces of the rigid male rings (15) are in close contact with the groove walls of the annular grooves (16) to form a part of the inner sealing structure (17).
5. The ultrasonic medical surgical instrument as claimed in claim 4, wherein the cross section of the rigid male ring (15) is isosceles trapezoid, and the cross section of the annular groove (16) is isosceles trapezoid.
6. The ultrasonic medical surgical instrument as claimed in claim 2 or 3 or 4 or 5, wherein the rigid support structure (12) is located in a central region of the sealing support sleeve (13), and a deformation capacity of a portion of the sealing support sleeve (13) corresponding to the rigid support structure (12) is smaller than a deformation capacity of a portion of the sealing support sleeve (13) corresponding to both side regions of the rigid support structure (12).
7. The ultrasonic medical surgical instrument as claimed in claim 6, wherein said inner sealing structure (17) comprises a first annular sealing surface (18) disposed on each side of the rigid support structure (12), said first annular sealing surface (18) being in close contact with the outer wall of the waveguide (4); the outer side sealing structure (14) comprises a second annular sealing surface (19), and the second annular sealing surface (19) is tightly contacted with the inner wall of the inner pipe (5).
8. The ultrasonic medical surgical instrument as claimed in claim 7, wherein the outside of the sealing support sleeve (13) is further provided with a sealing reinforcing structure (20) which can improve the sealing effect between the sealing support sleeve (13) and the inner wall of the inner tube (5) when the sealing support sleeve (13) is installed between the inner tube (5) and the waveguide (4).
9. The ultrasonic medical-surgical instrument as claimed in claim 8, wherein the seal-reinforcing structure (20) comprises at least one sealing lip (21), the sealing lip (21) being located at the end of the seal-supporting sleeve (13) remote from the distal end of the waveguide (4) and being capable of abutting against the inner wall of the inner tube (5), and an annular receiving groove (22) being provided between the outer sealing structure (14) and the sealing lip (21).
10. The ultrasonic medical-surgical instrument as claimed in claim 9, wherein the lip top (23) of the sealing lip (21) is higher than the outer sealing structure (14) in a natural state, and the lip top (23) is deformed by being pressed to form a face seal with the inner wall of the inner tube (5) when the sealing support sleeve (13) is positioned between the inner tube (5) and the waveguide (4).
11. The ultrasonic medical surgical instrument as claimed in claim 1, wherein the nodal soft support structure (10) comprises a nodal support ring (25), the inner side of the nodal support ring (25) is provided with an inner support structure (26) which can be in circumferential annular continuous contact or circumferential annular spaced contact with the outer wall of the waveguide (4), and the outer side of the nodal support ring (25) is provided with an outer support structure (27) which can be in circumferential annular continuous contact or circumferential annular spaced contact with the inner wall of the inner tube (5).
12. The ultrasonic medical-surgical instrument as claimed in claim 11, wherein said outer support structure (27) comprises at least two radially outwardly extending outer supports (28), the outer ends of said outer supports (28) being adapted to contact the inner wall of the inner tube (5) to form supports; or the outer support structure (27) comprises an outer support ring surface located outside the nodal support ring (25).
13. The ultrasonic medical-surgical instrument as set forth in claim 12, wherein the outer supports (28) are identical in shape and size and are uniformly distributed in the circumferential direction, and each outer support (28) has a centripetal configuration directed toward the central axis of the waveguide (4); the cross section of the outer supporting part (28) is isosceles trapezoid.
14. The ultrasonic medical surgical instrument of claim 11 wherein said inner support structure (26) comprises an inner support annulus (24) located inside a nodal support ring (25); or the inner supporting structure (26) comprises at least two inner supporting parts extending outwards in the radial direction, and the outer ends of the inner supporting parts can be respectively contacted with the outer wall of the waveguide (4) to form support.
15. The ultrasonic medical surgical instrument as claimed in claim 1, wherein the floating support mechanism (8) comprises a flange (31) arranged at the front end of a horn (30) of the ultrasonic transducer device (2), one surface of the flange (31) is provided with a cylindrical rear support seat (32) and the horn (30) is arranged through the rear support seat (32), the other surface of the flange (31) is provided with a cylindrical horn (30) arranged through a front support seat (33), the front support seat (33) is internally provided with a front support gasket (34) made of a flexible material, one surface of the flange (31) facing the front support gasket (34) is abutted against the front support gasket (34), the front end of the rear support seat (32) enters the front support seat (33), a rear support gasket (35) made of a flexible material is arranged between the front end of the rear support seat (32) and the flange (31), the one side of ring flange (31) towards back support washer (35) support to lean on in back support washer (35), the front end of back supporting seat (32) support to lean on in back support washer (35), thereby preceding supporting seat (33) and back supporting seat (32) link firmly each other and make ring flange (31) be pressed from both sides and locate between preceding support washer (34) and back support washer (35).
16. The ultrasonic medical-surgical instrument as claimed in claim 15, wherein the rear support washer (35) is cylindrical, a radially inward annular flange (36) is provided at one end of the rear support washer (35) facing the front end of the rear support seat (32), the flange (31) is located in the rear support washer (35) so that the outer edge of the flange (31) is surrounded by the rear support washer (35), one surface of the flange (31) facing the annular flange (36) abuts against one surface of the annular flange (36), and the front end of the rear support seat (32) abuts against the other surface of the annular flange (36).
17. The ultrasonic medical surgical instrument as claimed in claim 16, wherein a plurality of receiving grooves (37) are formed in one end of the rear support washer (35) facing the front end of the rear support base (32), a plurality of protrusions (38) are formed in the front end of the rear support base (32), the protrusions protrude from the front end face of the rear support base (32), the receiving grooves (37) and the protrusions (38) are arranged in a one-to-one correspondence, the protrusions (38) are embedded in the receiving grooves (37), and the front end face of the rear support base (32) abuts against one face of the annular flange (36).
18. The ultrasonic medical-surgical instrument as set forth in claim 17, wherein the receiving grooves (37) are located at the outer edge of the rear support washer (35) and are uniformly distributed in the circumferential direction; the convex bodies (38) are positioned at the outer edge of the front end of the rear supporting seat (32) and are uniformly distributed in the circumferential direction; the outer side wall of the rear supporting washer (35) is provided with a plurality of wire passing grooves (39) which are in one-to-one correspondence with the containing groove (37), each wire passing groove (39) axially extends along the rear supporting washer (35), one end of each wire passing groove (39) is communicated with the containing groove (37), the other end of each wire passing groove extends to the other end of the rear supporting washer (35), and a control wire (40) penetrates through one wire passing groove (39).
19. The ultrasonic medical surgical instrument as claimed in claim 18, wherein a first wire through hole (41) is obliquely formed in the inner side of the front end of the rear supporting seat (32), a second wire through hole (42) is obliquely formed in the inner side of the rear end of the front supporting seat (33), the first wire through hole (41) and the second wire through hole (42) are distributed in a splayed shape, and the control wire (40) passes through the first wire through hole (41), the wire through groove (39) and the second wire through hole (42) and thus passes through the flange plate (31) from the rear supporting seat (32) to enter the front supporting seat (33).
20. The ultrasonic medical-surgical instrument as claimed in claim 18, wherein the top of the convex body (38) has a slope (43) and the slope (43) is gradually raised from the outside to the inside along the radial direction of the rear supporting seat (32); the shape of the containing groove (37) is matched with that of the convex body (38).
21. The ultrasonic medical surgical instrument as claimed in claim 18, wherein a plurality of positioning notches (44) are formed in one surface of the flange (31) facing the annular flange (36), a plurality of positioning protrusions (45) are formed in one surface of the annular flange (36) facing the annular flange (36), the positioning notches (44) correspond to the positioning protrusions (45) in a one-to-one mode, and the positioning protrusions (45) are embedded in the positioning notches (44); the positioning notches (44) are located on the outer edge of the flange plate (31) and are evenly distributed in the circumferential direction, and the positioning lugs (45) are located between the annular flanging (36) and the inner wall of the rear supporting gasket (35) and are evenly distributed in the circumferential direction.
22. The ultrasonic medical-surgical instrument as claimed in claim 18, wherein an annular collar (46) is provided in the front support seat (33), and an end of the rear support washer (35) remote from the front end of the rear support seat (32) abuts against the annular collar (46); one surface of the annular retainer ring (46) facing the rear support gasket (35) is provided with an annular sinking groove (47), and the front support gasket (34) is arranged in the annular sinking groove (47).
23. The ultrasonic medical-surgical instrument as recited in claim 18, wherein the flange (31) is integrally formed with the horn (30) and the flange (31) is disposed at a node of the horn (30); the front supporting gasket (34) and the rear supporting gasket (35) are both made of elastic materials; the rear end of the front supporting seat (33) is fixedly connected with the front end of the rear supporting seat (32) in a sleeved mode, and an annular sealing ring (48) is arranged at the sleeved position of the front supporting seat (33) and the rear supporting seat (32).
24. The ultrasonic medical surgical instrument as claimed in any one of claims 18 to 23, wherein the horn (30) is connected at its rear end to a piezoelectric element (49), a first power line (52), a second power line (53) and the control line (40) are provided on a wire feeding structure (51) at the rear end of the elongated handle housing (50), a wire winding base (54) fixed in the elongated handle housing (50) is sleeved on the piezoelectric element (49), one end of the wire winding base (54) is a wire winding disc (55), a wire winding structure (56) is provided on one side of the wire winding disc (55), a plurality of sheets (57) are provided on the outer edge of the other side of the wire winding disc (55), one end of each sheet is connected to the wire winding disc (55), and the other end of each sheet extends in the same direction perpendicular to the plane of the wire winding disc (55), the sheets (57) are distributed at intervals in the circumferential direction and enclose an accommodation space (58), one end of the accommodating space (58) is the wire spool (55) and the other end of the accommodating space forms an opening (59) for the piezoelectric assembly (49) to enter the accommodating space (58), a strip-shaped interval (60) extending from the wire spool (55) to the opening (59) is formed between two adjacent sheets (57) in the circumferential direction, the first power line (52) enters one of the strip-shaped intervals (60) through the wire winding structure (56) and is connected with the middle part of the piezoelectric assembly (49), the second power line (53) enters the other strip-shaped interval (60) through the wire winding structure (56) and is connected with the front part of the piezoelectric assembly (49), and the control line (40) axially extends forwards along the periphery of the piezoelectric assembly (49) through the wire winding structure (56).
25. The ultrasonic medical surgical instrument as claimed in claim 24, wherein the winding structure (56) comprises a plurality of bars (61) whose inner ends converge to the center of the winding disc (55) and outer ends radiate outwards, a wire clamping body (62) which is suspended and extends laterally towards the bars (61) is disposed at the outer end of the bars (61), a wire clamping opening (63) is formed between the end surface of the winding disc (55) and the lower side of the wire clamping body (62), the number of the bar-shaped intervals (60) is equal to the number of the wire clamping openings (63), and the wire clamping opening (63) and the bar-shaped intervals (60) are respectively disposed in a circumferentially staggered manner.
26. The ultrasonic medical-surgical instrument as claimed in claim 25, wherein the first power line (52) and the second power line (53) extend outwardly from a central region of the spool (55) along one of the bars (61) and turn laterally to the corresponding bar-shaped space (60) after passing through the corresponding wire-locking opening (63), a wire-passing through groove (64) extending from an edge of the spool (55) in parallel to the bar-shaped space (60) is provided on one of the plates (57), a wire-passing through hole (65) is provided at a front end of the plate (57) provided with the wire-passing through groove (64), the wire-passing through groove (64) is provided in correspondence with the wire-passing through hole (65), and the control wire (40) extends outwardly from the central region of the spool (55) along one of the bars (61) and turns laterally to the wire-passing through groove (64) after passing through the corresponding wire-locking opening (63) and turns axially to the wire-passing through groove (64) and the wire-passing through hole (65), respectively The front part extends to the periphery of the floating support mechanism (8).
27. The ultrasonic medical surgical instrument as claimed in claim 26, wherein the front end of the sheet body (57) is provided with positioning portions (66) extending obliquely outward and then continuing to extend in the same direction perpendicular to the plane of the wire spool (55), the outer sides of the positioning portions (66) are provided with positioning structures (67), the inner sides of the positioning portions (66) corresponding to the front end of the sheet body (57) provided with the wire passing through grooves (64) are provided with protruding strips (68) protruding from the inner walls of the positioning portions (66), and the wire passing through holes (65) are arranged in the protruding strips (68); the inner end of the convex strip (68) is provided with an open groove (69) which is communicated with the through hole (65) and faces to the inner side, so that one part of the through hole (65) is a lateral slotted through hole and the other part of the through hole is a circumferential closed through hole; location structure (67) including locating screens step (70) in location portion (66) outside, thereby one side circumference of location portion (66) extend and get into accommodation space (58) thereby make the width of accommodation space (58) opening part narrow down, screens step (70) and draw-in groove (71) looks joint on long handle formula casing (50) inner wall.
28. The ultrasonic medical-surgical instrument as claimed in claim 26, wherein said sheet-like body (57) is in the form of an arc-shaped sheet at the end connected to the spool (55), said sheet-like body (57) being uniformly distributed in the circumferential direction; the rear end of the strip-shaped interval (60) is communicated with a notch (72) which is arranged on the edge of the wire spool (55) and is positioned between two adjacent sheet-shaped bodies (57) in the circumferential direction.
29. The ultrasonic medical-surgical instrument as set forth in any one of claims 1 to 5, 7 to 23, wherein a tubular body (73) made of an elastic material is provided between the waveguide (4) and the inner tube (5), and longitudinal openings (74) penetrating both longitudinal ends of the tubular body (73) are provided at the side of the tubular body (73) so that the tubular body (73) has a C-shaped cross section, wherein the inner diameter of the tubular body (73) is larger than the outer diameter of the waveguide (4) and the outer diameter of the tubular body (73) is smaller than the inner diameter of the inner tube (5).
CN201920623265.5U 2019-05-01 2019-05-01 Ultrasonic medical surgical instrument Active CN212165853U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110403672A (en) * 2019-05-01 2019-11-05 杭州康基医疗器械股份有限公司 Ultrasonic medical surgical instruments

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110403672A (en) * 2019-05-01 2019-11-05 杭州康基医疗器械股份有限公司 Ultrasonic medical surgical instruments
CN110403672B (en) * 2019-05-01 2024-04-19 杭州康基医疗器械有限公司 Ultrasonic medical surgical instrument

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