Isolated ultrasonic transducer

Abstract

The utility model relates to the technical field of ultrasonic transducers, and discloses an isolation type ultrasonic transducer which comprises a front isolation piece, a front cover assembly, a rear cover assembly, a transduction assembly, a rear isolation piece and an insulation tube, the insulation tube is sleeved on the rear cover assembly, and the insulation tube synchronously penetrates through the front isolation piece, the transduction assembly and the rear isolation piece; the front cover assembly, the front isolation piece, the transduction assembly, the rear isolation piece and the rear cover assembly are assembled and arranged in sequence, and the front isolation piece and the rear isolation piece are respectively used for isolating current or voltage. Under the action of the front isolation piece and the rear isolation piece, a current or voltage isolation effect is achieved between the front cover assembly and the rear cover assembly, so that the rear cover assembly does not generate voltage and / or current during working, and the front cover assembly and other metal probes or ultrasonic transmission media are not electrified due to conduction; therefore, the risk of electric shock of a patient in the operation process is avoided, the operation safety is improved, and the smooth, safe and stable operation process is guaranteed.

Description

Technical Field

[0001] The utility model patent relates to the technical field of ultrasonic transducers, and specifically, to an isolated ultrasonic transducer. Background Art

[0002] The function of the ultrasonic transducer is to convert the input electrical power into mechanical power (i.e. ultrasonic waves) and then transmit it out, while consuming only a small amount of power itself.

[0003] At present, ultrasonic transducers mainly include a front cover plate, piezoelectric ceramics, a metal sheet and a rear cover plate, etc.; for example, a prior patent with a publication number of CN218282508U discloses a pressure pad ceramic ultrasonic transducer, including a front cover assembly, a transducer assembly and a rear cover assembly, wherein the transducer assembly is fixedly connected to the proximal end of the front cover plate through the rear cover assembly; the rear cover assembly includes a rear cover plate and a connector, and the rear cover plate is fixed as a whole with the transducer assembly and the front cover plate through the connector; an annular columnar insulating isolation member is arranged between the transducer assembly and the connector; the transducer assembly includes a piezoelectric ceramic device, a positive electrode sheet monomer, and a negative electrode sheet monomer, wherein a positive electrode sheet monomer and a negative electrode sheet monomer are alternately arranged between at least four piezoelectric ceramic devices.

[0004] In the prior art, the transducer assembly is in direct contact with the front cover plate and the rear cover plate, which causes voltage and / or current to be generated between the transducer, the front cover assembly, and the rear cover assembly during operation, thus affecting the smooth progress of the operation. Utility Model Content

[0005] The utility model aims to provide an isolated ultrasonic transducer, aiming to solve the problem in the prior art that voltage and / or current are generated between the transducer assembly, the front cover assembly and the rear cover assembly during operation.

[0006] The utility model is implemented as follows: an isolated ultrasonic transducer comprises a front isolator, a front cover assembly, a rear cover assembly, a transducer assembly, a rear isolator and an insulating tube, wherein the insulating tube is sleeved with the rear cover assembly, and the insulating tube simultaneously passes through the front isolator, the transducer assembly and the rear isolator; the front cover assembly, the front isolator, the transducer assembly, the rear isolator and the rear cover assembly are assembled and arranged in sequence, and the front isolator and the rear isolator are used to isolate current or voltage respectively.

[0007] Furthermore, the front isolating member and the rear isolating member are respectively arranged in a cylindrical shape, and a front isolation hole is formed in the middle of the front isolating member, and a rear isolation hole is formed in the middle of the rear isolating member, the insulating tube simultaneously passes through the front isolation hole and the rear isolation hole, and the tube wall of the insulating tube is arranged in conflict or with a gap with the hole wall of the front isolation hole and the hole wall of the rear isolation hole.

[0008] Furthermore, the transducer assembly includes a plurality of piezoelectric devices and a plurality of electrode components, the piezoelectric devices are arranged in a corresponding interval, and the electrode components and the piezoelectric devices are assembled; a through hole is formed in the middle of the piezoelectric device, and the tube wall of the insulating tube and the hole wall of the through hole are arranged in a conflicting manner or with a gap.

[0009] Furthermore, the electrode member includes a positive electrode sheet and a negative electrode sheet, and the positive electrode sheet and the negative electrode sheet are arranged in a corresponding manner at intervals; the positive electrode sheet has a plurality of positive electrode holes, and the positive electrode holes are arranged through, and the positive electrode sheet and the piezoelectric device are arranged flat and bonded or flat and in conflict; the negative electrode sheet has a plurality of negative electrode holes, and the negative electrode holes are arranged through, and the negative electrode sheet and the piezoelectric device are arranged flat and bonded or flat and in conflict.

[0010] Furthermore, the electrode component includes a connecting plate and an insulating layer, the two ends of the connecting plate are respectively arranged to be docked with the positive electrode plate and the negative electrode plate, and the connecting plate is used for the conduction of the positive electrode plate and the conduction of the negative electrode plate; the insulating layer wraps the connecting plate, and the insulating layer is used for insulation.

[0011] Furthermore, the front isolating member and the rear isolating member clamp and contact the transducer assembly, and the front cover assembly and the rear cover assembly clamp and contact the front isolating member and the rear isolating member.

[0012] Furthermore, the rear cover assembly includes a rear cover plate and a locking piece, the locking piece extends through the rear cover plate to lock the front cover assembly; the insulating tube is sleeved with the locking piece, and the front isolation piece, the transducer assembly and the rear isolation piece are synchronously sleeved with the insulating tube; the insulating tube is used to isolate the transducer assembly from the locking piece.

[0013] Furthermore, the locking member passes through the front cover assembly, and the front cover assembly and the locking member are arranged in threaded connection; or, the front cover assembly includes a stud, and the stud and the rear cover plate are arranged in threaded connection.

[0014] Furthermore, a liquid flow channel is formed between the front cover assembly and the locking member, the liquid flow channel is used for liquid flow, and the transducer assembly is arranged corresponding to the liquid flow channel, the liquid flow channel is used to cool the liquid flow channel or to flush the tool.

[0015] Further, the front cover assembly has a front cover groove, the front cover groove is recessed inwardly and is arranged in a ring shape or in a center-symmetrical arrangement, the front cover assembly includes a locking screw, the locking screw is sleeved in the front cover groove, the locking screw is used to fix the transducer assembly, the front cover assembly includes a front cover body and a front cover shaft, the front cover body and the front cover shaft are assembled, the front cover shaft passes through the transducer assembly and extends to be assembled with the rear cover assembly; or, the front cover assembly includes a front cover plate and a flange, the flange plate is sleeved on the front cover plate and the flange is arranged in a center-symmetrical arrangement, and the flange is used to fix the transducer assembly.

[0016] Compared with the prior art, the isolated ultrasonic transducer provided by the utility model, under the action of the front isolator and the rear isolator, plays a role in isolating the current or voltage between the front cover assembly and the rear cover assembly, so that the rear cover assembly will not generate voltage and or current when working, and the front cover assembly and other metal probes or ultrasonic transmission media will not be charged due to conduction, thereby avoiding the risk of electric shock during the operation, improving the safety of the operation, and ensuring that the operation proceeds smoothly, safely and stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional schematic diagram of the isolated ultrasonic transducer provided by the utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of a transducer assembly of an isolated ultrasonic transducer provided by the utility model;

[0019] Figure 3 It is a three-dimensional schematic diagram of another embodiment of the transducer assembly of the isolated ultrasonic transducer provided by the utility model;

[0020] Figure 4 It is a three-dimensional schematic diagram of an electrode member of an isolated ultrasonic transducer provided by the utility model;

[0021] Figure 5 It is a three-dimensional schematic diagram of a front cover assembly of an isolated ultrasonic transducer provided by the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] The implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0024] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] Reference Figure 1-5 As shown, it is a preferred embodiment provided by the utility model.

[0026] An isolated ultrasonic transducer includes a front isolator 1, a front cover assembly 2, a rear cover assembly 3, a transducer assembly 5, a rear isolator 4 and an insulating tube 6. The insulating tube 6 is sleeved on the rear cover assembly 3, and the insulating tube 6 simultaneously passes through the front isolator 1, the transducer assembly 5 and the rear isolator 4; the front cover assembly 2, the front isolator 1, the transducer assembly 5, the rear isolator 4 and the rear cover assembly 3 are assembled and arranged in sequence, and the front isolator 1 and the rear isolator 4 are used to isolate current or voltage respectively.

[0027] The above-mentioned isolated ultrasonic transducer, under the action of the front isolation piece 1 and the rear isolation piece 4, plays a role of isolating the current or voltage between the front cover assembly 2 and the rear cover assembly 3, so that the rear cover assembly 3 will not generate voltage and / or current during operation, and the front cover assembly 2 and other metal probes or ultrasonic transmission media will not be charged due to conduction, thereby avoiding the risk of electric shock during the operation, improving the safety of the operation, and ensuring that the operation proceeds smoothly, safely and stably.

[0028] The front isolator 1 and the rear isolator 4 are arranged in a cylindrical shape, and a front isolation hole is formed in the middle of the front isolator 1, and a rear isolation hole is formed in the middle of the rear isolator 4. The insulating tube 6 simultaneously penetrates the front isolation hole and the rear isolation hole, and the tube wall of the insulating tube 6 is arranged in conflict or with a gap with the hole wall of the front isolation hole and the hole wall of the rear isolation hole.

[0029] In this way, the assembly effect of the insulating tube 6 and the front isolator 1 and the rear isolator 4 is improved, the assembly stability of the front isolator 1 and the rear isolator 4 is guaranteed, and then the overall assembly stability of the isolated ultrasonic transducer is guaranteed.

[0030] The transducer assembly 5 includes a plurality of piezoelectric devices 51 and a plurality of electrode members 52. The piezoelectric devices 51 are arranged in a corresponding manner at intervals, and the electrode members 52 and the piezoelectric devices 51 are assembled. A piezoelectric hole is formed in the middle of the piezoelectric device 51, and the tube wall of the insulating tube 6 is arranged in a conflicting manner or with a gap between the wall of the piezoelectric hole.

[0031] In this way, the assembly effect of the insulating tube 6 and the transducer assembly 5 is improved, and the assembly stability of the insulating tube 6 and the transducer assembly 5 is improved.

[0032] The number of the piezoelectric devices 51 is an even number, which may be two, four, six, or the like.

[0033] The electrode member 52 includes a positive electrode sheet 521 and a negative electrode sheet 522, and the positive electrode sheet 521 and the negative electrode sheet 522 are arranged in a corresponding manner at intervals; the positive electrode sheet 521 has a plurality of positive electrode holes 523, and the positive electrode holes 523 are arranged through, and the positive electrode sheet 521 and the piezoelectric device 51 are arranged flat and bonded or flat and in contact; the negative electrode sheet 522 has a plurality of negative electrode holes 524, and the negative electrode holes 524 are arranged through, and the negative electrode sheet 522 and the piezoelectric device 51 are arranged flat and bonded or flat and in contact.

[0034] In this way, with the cooperation of each positive electrode hole 523 and each negative electrode hole 524, it is conducive to the filling of glue or glue layer and the coverage of glue or glue layer is increased, thereby increasing the bonding area between the positive electrode sheet 521 and the negative electrode sheet 522 and the piezoelectric device 51 respectively, improving the bonding stability between the positive electrode sheet 521 and the piezoelectric device 51, and improving the bonding stability between the negative electrode sheet 522 and the piezoelectric device 51, effectively preventing the piezoelectric device 51 from loosening or moving.

[0035] The piezoelectric device 51 may be a piezoelectric ceramic sheet to realize the operation of the energy conversion component 5 .

[0036] The positive electrode sheet 521 and the negative electrode sheet 522 clamp the two piezoelectric devices 51 , and different electrode pieces 52 are arranged in a staggered manner to realize the operation of the energy conversion component 5 .

[0037] The electrode member 52 includes a connecting electrode piece 525 and an insulating layer 53. The two ends of the connecting electrode piece 525 are respectively connected to the positive electrode piece 521 and the negative electrode piece 522. The connecting electrode piece 525 is used for conducting the positive electrode piece 521 and the negative electrode piece 522. The insulating layer 53 wraps the connecting electrode piece 525 and is used for insulation.

[0038] Under the effect of the insulating layer 53 , the insulation strength is increased to prevent short circuit or breakdown between the positive electrode sheet 521 and the negative electrode sheet 522 , thereby preventing damage to the transducer.

[0039] The insulating layer 53 can be a polyimide tape, a polytetrafluoroethylene tape, or a heat shrink tube to achieve insulation.

[0040] Alternatively, the electrode member 52 includes a connecting electrode 525 and an isolation block 54. The isolation block 54 is arranged between the positive electrode 521 and the negative electrode 522. The isolation block 54 is used for insulation. The two ends of the connecting electrode 525 are respectively connected to the positive electrode 521 and the negative electrode 522. A hollow area is formed between the connecting electrode 525 and the piezoelectric device 51, and the isolation block 54 fills the hollow area. Under the action of the isolation block 54, a short circuit or breakdown between the positive electrode 521 and the negative electrode 522 is avoided, which may cause damage to the transducer.

[0041] The isolation block 54 can be made of epoxy resin glue or silicone to achieve insulation effect.

[0042] The front isolator 1 and the rear isolator 4 clamp and contact the transducer assembly 5, and the front cover assembly 2 and the rear cover assembly 3 clamp and contact the front isolator 1 and the rear isolator 4, thereby ensuring the assembly stability of the isolated ultrasonic transducer.

[0043] The rear cover assembly 3 includes a rear cover plate and a locking piece, which extends through the rear cover plate and locks the front cover assembly 2; the insulating tube 6 is sleeved with the locking piece, and the front isolation piece 1, the transducer assembly 5 and the rear isolation piece 4 are synchronously sleeved with the insulating tube 6; in this way, the assembly between the rear cover assembly 3 and the front cover assembly 2 is achieved through the locking piece, and at the same time, by tightening the locking piece, the cover assembly, the front isolation piece 1, the transducer assembly 5, the rear isolation piece 4 and the rear cover assembly 3 are reinforced to ensure the assembly stability of the isolated ultrasonic transducer.

[0044] The insulating tube is used to isolate the transducer assembly from the locking piece and protect the transducer assembly.

[0045] The locking piece passes through the front cover assembly 2, and the front cover assembly 2 and the locking piece are arranged in threaded connection; in this way, the front cover assembly 2 and the locking piece are firmly matched to ensure the assembly stability of the isolated ultrasonic transducer.

[0046] Alternatively, the front cover assembly includes studs, and the studs are arranged in threaded connection with the rear cover plate to ensure the assembly stability of the isolated ultrasonic transducer.

[0047] A liquid flow channel is formed between the front cover assembly and the locking member, the liquid flow channel is used for liquid flow, and the energy conversion assembly is arranged correspondingly to the liquid flow channel, the liquid flow channel is used to cool the liquid flow channel or to flush the tool.

[0048] In this way, the temperature of the transducer assembly 5 is reduced through the liquid flow channel, which can increase the service life of the transducer assembly 5 and at the same time, flush the surgical tool.

[0049] The front cover assembly 2 has a front cover groove 21, which is recessed inward and is arranged in a ring shape or in a centrally symmetrical shape. The front cover assembly includes a locking screw, which is sleeved in the front cover groove 21. The locking screw is used to fix the transducer assembly. By tightening the locking screw, the front cover shell is tightened, thereby fixing the front cover shell and the rear cover assembly, and further fixing the transducer assembly.

[0050] Alternatively, the front cover assembly 2 includes a front cover shell, which has a front cover groove 21, which is recessed inward and arranged in a ring shape, and the front cover shell is rotated to fix the transducer assembly 5; in this way, it is convenient to apply a rotational force to the front cover shell so that the front cover shell is arranged to rotate relative to the locking piece, thereby realizing the installation and fixation of the front isolation member 1, the transducer assembly 5, the rear isolation member 4 and the insulating tube 6.

[0051] Alternatively, the front cover assembly 2 includes a front cover plate and a flange, the flange sleeve is arranged on the front cover plate and the flange is centrally symmetrically arranged, and the flange is used to fix the transducer assembly; the front cover shell is fixed by the flange, and then the transducer assembly is fixed.

[0052] Alternatively, the front cover assembly 2 includes a front cover shell and a flange, the flange is mounted on the front cover shell, and the flange is used to drive the front cover shell to rotate; in this way, it is convenient to apply a rotational force to the front cover shell through the flange, so that the front cover shell is arranged to rotate relative to the locking member, thereby realizing the installation and fixation of the front isolation member 1, the transducer assembly 5, the rear isolation member 4 and the insulating tube 6.

[0053] The front cover assembly 2 includes a front cover body and a front cover shaft, and the front cover body and the front cover shaft are assembled. The front cover shaft extends through the transducer assembly and is assembled with the rear cover assembly 3; the assembly between the front cover assembly 2 and the rear cover assembly 3 is realized, and the installation and fixation of the front isolation member 1, the transducer assembly 5, the rear isolation member 4 and the insulating tube 6 are realized.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An isolated ultrasonic transducer, characterized in that: It includes a front isolator, a front cover assembly, a rear cover assembly, a transducer assembly, a rear isolator and an insulating tube, wherein the insulating tube is sleeved with the rear cover assembly, and the insulating tube simultaneously passes through the front isolator, the transducer assembly and the rear isolator; The front cover assembly, the front isolator, the transducer assembly, the rear isolator and the rear cover assembly are assembled and arranged in sequence, and the front isolator and the rear isolator are used to isolate current or voltage respectively.

2. The isolated ultrasonic transducer according to claim 1, characterized in that: The front isolating member and the rear isolating member are respectively arranged in a cylindrical shape, and a front isolation hole is formed in the middle of the front isolating member, and a rear isolation hole is formed in the middle of the rear isolating member. The insulating tube simultaneously passes through the front isolation hole and the rear isolation hole, and the tube wall of the insulating tube is arranged in a conflicting manner or with a gap therebetween with the hole wall of the front isolation hole and the hole wall of the rear isolation hole.

3. The isolated ultrasonic transducer according to claim 2, characterized in that: The transducer assembly includes a plurality of piezoelectric devices and a plurality of electrode components, wherein the piezoelectric devices are arranged in a corresponding manner at intervals, and the electrode components are assembled with the piezoelectric devices; a through hole is formed in the middle of the piezoelectric device, and the tube wall of the insulating tube is arranged in a conflicting manner or with a gap between the tube wall and the hole wall of the through hole.

4. The isolated ultrasonic transducer according to claim 3, characterized in that: The electrode components include a positive electrode sheet and a negative electrode sheet, and the positive electrode sheet and the negative electrode sheet are arranged in a corresponding manner at intervals; the positive electrode sheet has a plurality of positive electrode holes, and the positive electrode holes are arranged through, and the positive electrode sheet and the piezoelectric device are arranged flat and bonded or flat and in conflict; the negative electrode sheet has a plurality of negative electrode holes, and the negative electrode holes are arranged through, and the negative electrode sheet and the piezoelectric device are arranged flat and bonded or flat and in conflict.

5. The isolated ultrasonic transducer according to claim 4, characterized in that: The electrode member comprises a connecting electrode sheet and an insulating layer, the two ends of the connecting electrode sheet are respectively butted with the positive electrode sheet and the negative electrode sheet, and the connecting electrode sheet is used for conducting the positive electrode sheet and the negative electrode sheet; The insulating layer wraps the connecting electrode, and the insulating layer is used for insulation.

6. The isolated ultrasonic transducer according to any one of claims 1 to 5, characterized in that: The front isolator and the rear isolator clamp and contact the transducer assembly, and the front cover assembly and the rear cover assembly clamp and contact the front isolator and the rear isolator.

7. The isolated ultrasonic transducer according to any one of claims 1 to 5, characterized in that: The rear cover assembly includes a rear cover plate and a locking piece, wherein the locking piece extends through the rear cover plate to lock the front cover assembly; the insulating tube is sleeved with the locking piece, and the front isolation piece, the transducer assembly and the rear isolation piece are synchronously sleeved with the insulating tube; the insulating tube is used to isolate the transducer assembly from the locking piece.

8. The isolated ultrasonic transducer according to claim 7, characterized in that: The locking member passes through the front cover assembly, and the front cover assembly and the locking member are arranged in threaded connection; or, the front cover assembly includes a stud, and the stud is arranged in threaded connection with the rear cover plate.

9. The isolated ultrasonic transducer according to claim 7, characterized in that: A liquid flow channel is formed between the front cover assembly and the locking member, the liquid flow channel is used for liquid flow, and the energy conversion assembly is arranged correspondingly to the liquid flow channel, the liquid flow channel is used to cool the liquid flow channel or to flush the tool.

10. The isolated ultrasonic transducer according to any one of claims 1 to 5, characterized in that: The front cover assembly has a front cover groove, which is recessed inward and is arranged in a ring shape or in a center-symmetrical arrangement. The front cover assembly includes a locking screw, which is sleeved on the front cover groove. The locking screw is used to fix the transducer assembly. The front cover assembly includes a front cover body and a front cover shaft, which are assembled with the front cover body and the front cover shaft. The front cover shaft extends through the transducer assembly and is assembled with the rear cover assembly; or, the front cover assembly includes a front cover plate and a flange, which is sleeved on the front cover plate and is arranged in a center-symmetrical arrangement. The flange is used to fix the transducer assembly.

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