Transducer rotating mechanism and hard part tip of ultrasonic probe
By adopting a combined structure of base, rotary receiver and elastic member in the ultrasonic probe, the problem of fatigue failure of metal shrapnel is solved, the stable rotation and high accuracy transmission of the ultrasonic transducer are achieved, and the durability of the equipment is improved. and productivity.
Patent Information
- Application Number
- CN202323134476.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-20
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2033-11-20
AI Technical Summary
In the transducer rotation mechanism of existing ultrasonic probes, metal shrapnel is prone to fatigue failure, resulting in loss of rotational function and inability to effectively transmit rotational motion.
Using a combined structure of a base, a rotary receiver and an elastic member, the rotary receiver receives rotational power through the rotary receiver and provides elastic support through the elastic member to ensure stable rotation of the ultrasonic transducer and reduce transmission hysteresis and frictional resistance.
It improves the durability and motion accuracy of the transducer rotating mechanism, reduces the number of parts and assembly difficulty, saves costs, and ensures high-quality transmission of ultrasonic signals.
Smart Images
Figure CN222265283U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical instruments, in particular to a transducer rotating mechanism and a hard part tip of an ultrasonic probe. Background Art
[0002] In terms of physical examination of patients, doctors in the medical field can currently perform external and internal exploration, among which ultrasound probes (such as transesophageal probes) can be used for internal exploration. Transesophageal probes usually consist of an insertion part that is inserted into the human esophagus and an operating part that remains outside the human body. The insertion part includes a hard tip at the front end, a curved part connected to the hard tip, and a slender hose part connected to the curved part. For a transesophageal probe that can be rotated for scanning, the hard tip mainly includes two parts: an ultrasonic transducer and a transducer rotation mechanism.
[0003] In the prior art, the transducer rotating mechanism is as follows: Figure 1 As shown, the transducer rotation mechanism includes a rotation device 10 and a rotation transmission device 20, and the ultrasonic transducer is mounted on the rotation transmission device 20. The rotation device 10 includes a fixed base 101, a rotation member 102, a pad 103, a rotation member 2 104, and a closed cover plate 105. The fixed base 101 provides a fixed reference for the rotation device 10, the rotation member 102 is used to make the rotation movement of the rotation member 2 104 smoother, and the rotation member 2 104 can transfer the rotation movement of the operating part through a slender insertion hose to provide the entire device with rotation movement, and the pad 103 and the closed cover plate 105 are used to cover the rotation member 102 and the rotation member 2 104. The rotation transmission device 20 includes a thin metal spring 201 and a support 202. The thin metal spring sheet 201 is used to connect the rotating device 10 and the support member 202, and at the same time provide elastic support to the support member 202. A slot structure is provided on the support member 202, and one end of the thin metal spring sheet 201 extends into the slot structure and is assembled together with the support member 202. The rotating device 10 can drive the support member 202 to rotate through the thin metal spring sheet 201. At the same time, the thin metal spring sheet 201 also provides elastic support for the support member 202 so that the ultrasonic transducer supported on the support member 202 can be against the upper shell of the hard tip.
[0004] The transducer rotation mechanism of this ultrasonic probe, the transmission connection between the rotating device 10 and the rotating transmission device 20, is only assembled by a thin metal spring 201 through a slot structure. After long-term use, the thin metal spring 201 is prone to failure, resulting in damage to the transmission connection relationship between the rotating device 10 and the rotating transmission device 20, thereby causing the ultrasonic transducer on the rotating transmission device 20 to lose its rotation function. Utility Model Content
[0005] Therefore, the purpose of the utility model is to provide a transducer rotation mechanism and a hard tip of an ultrasonic probe to solve the defect in the prior art that the metal spring in the transducer rotation mechanism in the hard tip is prone to fatigue failure, thereby causing the ultrasonic transducer to lose its rotation function.
[0006] In order to solve the above technical problems, the technical solution of the utility model is as follows:
[0007] A transducer rotating mechanism of an ultrasonic probe, comprising:
[0008] A base, comprising a bottom plate and a central shaft connected to the bottom plate;
[0009] A rotating receiving member, located on the bottom plate and rotatably connected to the central axis, for receiving externally provided rotating power; a side of the rotating receiving member facing away from the bottom plate is suitable for fixedly connecting to an ultrasonic transducer;
[0010] An elastic member is elastically arranged between the bottom plate and the rotating receiving member, and is suitable for providing elastic force to the ultrasonic transducer through the rotating receiving member.
[0011] Furthermore, the rotating receiving member is rotatably connected to the central shaft via a bearing member.
[0012] Furthermore, the elastic member includes a main body and a spring sheet, the main body is provided with a through hole for the central axis to pass through, one end of the spring sheet is supported on the main body, and the other end is supported on the lower end surface of the rotating receiving member.
[0013] Furthermore, a plurality of the spring pieces are arranged around the outer circumference of the main body, one end of each of the spring pieces is integrally connected to the outer wall of the main body, and the other end extends outwardly obliquely relative to the main body to the lower end surface of the rotating receiving member.
[0014] Furthermore, a plurality of limiting grooves are provided on the lower end surface of the rotating receiving member, and the other end of the elastic sheet portion extends into the limiting groove and can slide along the guiding direction of the limiting groove.
[0015] Furthermore, the rotating receiving component is provided with a rope guide groove for the force transmission rope to pass through, and both ends of the force transmission rope pass through the inner cavity of the slender hose and are connected to the operating end.
[0016] Further, the rope guiding groove is arranged on the upper end surface of the rotating receiving member facing away from the bottom plate, or the rope guiding groove is arranged on the outer peripheral wall of the rotating receiving member.
[0017] Furthermore, a rotation transmitting member is fixedly connected to a side of the rotation receiving member facing away from the bottom plate, and the rotation receiving member covers a top opening of the rope guiding groove.
[0018] Furthermore, the rotating receiving member includes a chassis and a boss protruding upward from the middle of the chassis, the rope guide groove is arranged on the chassis, and the rotating transmitting member includes a pressure cover surrounding the outer periphery of the boss and pressed on the chassis as a whole.
[0019] Furthermore, the rotating receiving member also includes a cylindrical structure connected to the gland and surrounding the outer circumference of the ultrasonic transducer. A notch is provided on one side of the cylindrical structure, and a cable connected to the ultrasonic transducer extends outward through the notch.
[0020] Furthermore, the boss is polygonal, and a polygonal inner hole matching the outer shape of the boss is provided in the middle of the gland.
[0021] Furthermore, a connecting hole is provided on the rotation transmission member, and the ultrasonic transducer is fixedly connected to the rotation receiving member via a first fastener, and the first fastener passes through the connecting hole.
[0022] Furthermore, the rotation transmission member is provided with a plurality of guide holes, and the ultrasonic transducer is provided with a plurality of guide posts extending into the guide holes.
[0023] A hard tip of an ultrasonic probe comprises a hard upper shell and a hard lower shell which are interlocked with each other, the hard upper shell and the hard lower shell enclose a housing cavity; the housing cavity is provided with a transducer rotating mechanism of the ultrasonic probe as described above, the bottom plate of the base is fixed to the hard lower shell, the side of the rotating receiving member facing away from the bottom plate is fixedly connected with an ultrasonic transducer, the hard upper shell is provided with an ultrasonic window arranged corresponding to the position of the ultrasonic transducer, and the elastic member provides elastic force to the ultrasonic transducer through the rotating receiving member so that the ultrasonic transducer squeezes the inner surface of the hard upper shell.
[0024] The technical solution of the utility model has the following advantages:
[0025] 1. The transducer rotation mechanism of the ultrasonic probe provided by the utility model sets the elastic member between the bottom plate of the base and the rotating receiving member, and the ultrasonic transducer is fixed on the side of the rotating receiving member facing away from the bottom plate. After receiving the rotating power, the rotating receiving member can directly drive the ultrasonic transducer to rotate, and the elastic member can provide elastic force for the ultrasonic transducer through the rotating receiving member. Compared with the method in the prior art that the rotating receiving member drives the ultrasonic transducer to rotate and provide elastic force through a thin metal spring sheet extending into the slot at one end, it is not easy to cause the thin metal spring sheet to fall out of the slot and cause the ultrasonic transducer to lose its rotation function, thereby improving the durability and reliability of the transducer rotation mechanism and the connection of the ultrasonic transducer. Moreover, since the ultrasonic transducer and the rotating receiving member are fixed to form a whole, the rotating receiving member and the ultrasonic transducer can rotate synchronously, and there is no transmission lag in the process of transmitting the rotational motion from the rotating receiving member to the ultrasonic transducer, thereby improving the movement accuracy of the ultrasonic transducer. In addition, since the ultrasonic probe needs to be inserted into the human esophagus for use, the size of each component is very small, and the number of components of this transducer rotation mechanism is small. Compared with the existing technology, it eliminates multiple very small parts, which not only saves costs, but also reduces the difficulty of product assembly and improves production efficiency.
[0026] 2. The transducer rotating mechanism of the ultrasonic probe provided by the utility model, in which the rotating receiving element is rotatably connected to the central axis through a bearing element, can improve the stability of the rotating receiving element during rotation and reduce the rotational friction resistance.
[0027] 3. The transducer rotating mechanism of the ultrasonic probe provided by the utility model, the shrapnel-type elastic member consisting of a main body part and a shrapnel part, can withstand greater pressure and provide a relatively greater elastic supporting force for the ultrasonic transducer.
[0028] 4. The transducer rotation mechanism of the ultrasonic probe provided by the utility model has multiple spring parts arranged around the outer circumference of the main body, and the other ends of the multiple spring parts extend outwardly with respect to the main body, which can provide support for the rotating receiving part in a larger range below the rotating receiving part, which is beneficial to improving the stability of the rotating receiving part during rotation.
[0029] 5. The transducer rotation mechanism of the ultrasonic probe provided by the utility model is provided with a plurality of radially arranged limit grooves on the lower end surface of the rotating receiving member. The other end of the spring piece part extends into the limit groove, so that the rotating receiving member can synchronously drive the plurality of spring piece parts to rotate during the rotation of the rotating receiving member, which greatly reduces the relative sliding between the spring piece part and the rotating receiving member, greatly reduces the wear on the spring piece part, and avoids the problem that the spring piece part is easily disengaged from the limit groove due to excessive wear. The elastic member can still provide a stable elastic force for the ultrasonic transducer after long-term use.
[0030] 6. The transducer rotating mechanism of the ultrasonic probe provided by the utility model can cover the top opening of the guide rope groove after the rotating transmission component is fixed on the rotating receiving component, and the force transmission rope is not easy to escape from the guide rope groove, which is beneficial to improve the stability of the force transmission rope driving the rotating receiving component to perform rotational motion.
[0031] 7. The transducer rotating mechanism of the ultrasonic probe provided by the utility model has a pressure cover of the rotating transmission component that is pressed as a whole on the chassis of the rotating receiving component. The rotating transmission component can provide downward pressure for the rotating receiving component in the entire upper space of the rotating receiving component, thereby preventing the rotating receiving component from irregular up and down deflection and improving the stability of the rotating receiving component during rotation.
[0032] 8. The transducer rotating mechanism of the ultrasonic probe provided by the utility model has a cylindrical structure of a rotating receiving member surrounding the outer periphery of the ultrasonic transducer, and the cylindrical structure protects the ultrasonic transducer and prevents the ultrasonic transducer from directly hitting the external housing during rotation. In addition, the cylindrical structure and the gland are designed as an integrated structure, which can reduce the number of small-sized parts and components, and reduce the difficulty and cost of assembly, compared with the separate manufacturing methods of the cylindrical structure for protecting the ultrasonic transducer and the gland structure for covering the guide rope groove in the prior art.
[0033] 9. The transducer rotation mechanism of the ultrasonic probe provided by the utility model has the ultrasonic transducer fixedly connected to the rotating receiving member by a first fastener, and the first fastener passes through the connecting hole of the rotating transmission member. The first fastener can realize the fixed connection among the ultrasonic transducer, the rotating transmission member and the rotating receiving member, and has the advantages of simple structure and few assembly parts.
[0034] 10. The hard tip of the ultrasonic probe provided by the utility model adopts the above-mentioned transducer rotation mechanism of the ultrasonic probe, which has the advantages of high durability and reliability, high accuracy of ultrasonic transducer movement, fewer parts, less assembly difficulty, and low production cost. In addition, the elastic member can press the ultrasonic transducer against the inner surface of the hard upper shell by rotating the receiving member, so that the upper surface of the ultrasonic transducer is always parallel to the inner surface of the hard upper shell, which is conducive to improving the quality of ultrasonic signal emission and reception of the ultrasonic probe during patient exploration. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0036] Figure 1It is a schematic diagram of the internal structure of the transducer rotation mechanism in the hard tip of the ultrasonic probe in the prior art;
[0037] Figure 2 This is a schematic diagram of the overall structure of the ultrasonic probe in the embodiment of the utility model;
[0038] Figure 3 It is a schematic diagram of the overall structure of the hard tip of the ultrasonic probe in the embodiment of the utility model;
[0039] Figure 4 An exploded view of the hard tip of the ultrasonic probe in an embodiment of the present utility model;
[0040] Figure 5 An exploded view of the transducer rotating mechanism and the ultrasonic transducer of the ultrasonic probe in the embodiment of the utility model;
[0041] Figure 6 It is a cross-sectional view of the hard tip of the ultrasonic probe in the embodiment of the utility model;
[0042] Figure 7 This is a schematic diagram of the connection relationship between the rotating receiving member and the elastic member in the embodiment of the utility model;
[0043] Figure 8 It is a schematic structural diagram of the ultrasonic transducer body in the embodiment of the utility model.
[0044] Description of reference numerals: 100, hard tip; 200, elongated hose; 300, operating end; 10a, hard upper shell; 10b, hard lower shell; 110, base; 111, bottom plate; 112, central axis; 120, rotating receiving member; 121, chassis; 122, boss; 123, guide rope groove; 124, first threaded hole; 125, second threaded hole; 126, limit groove; 130, elastic member; 131, main body; 132, spring sheet; 14 0. Rotational transmission member; 141. Pressure cover; 142. Cylindrical structure; 143. Connecting hole; 144. Third threaded hole; 145. Notch; 146. Polygonal inner hole; 147. Guide hole; 150. Ultrasonic transducer; 151. Ultrasonic transducer body; 152. Ultrasonic transducer lens; 153. Connecting column; 154. Connecting column hole; 155. Guide column; 160. Bearing member; 170. Force transmission rope; 180. First fastener; 190. Second fastener. DETAILED DESCRIPTION
[0045] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0046] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0047] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0048] like Figure 2 An ultrasonic probe is shown, which is mainly a transesophageal probe used for in vivo exploration. The ultrasonic probe mainly includes a hard tip 100, a slender hose 200 and an operating end 300. When in use, the slender hose 200 is used to be inserted into the human esophagus, and the operating end 300 is left outside the human body to manipulate the slender hose 200 and the hard tip 100. The hard tip 100 is located at the farthest end of the slender hose 200, and the far end is the end of the slender hose 200 away from the operating end 300. The inner cavity of the hard tip 100 mainly includes two parts: an ultrasonic transducer 150 and a transducer rotation mechanism.
[0049] The specific structure of the hard tip of the ultrasound probe is as follows Figure 3 As shown in FIG. 8 , the hard tip 100 includes a hard upper shell 10a, a hard lower shell 10b, a transducer rotation mechanism and an ultrasonic transducer 150. The hard upper shell 10a and the hard lower shell 10b are interlocked and enclosed to form a receiving cavity with an opening at one end, and the end of the receiving cavity with the opening is connected to the elongated hose 200, and the space in the receiving cavity is connected to the space in the elongated hose 200.
[0050] In this embodiment, the transducer rotation mechanism includes a base 110, a rotation receiving member 120 and an elastic member 130. The base 110 includes a bottom plate 111 and a central axis 112 extending upward from the middle of the bottom plate 111. The bottom plate 111 and the central axis 112 are an integrated structure, and the bottom plate 111 is fixed to the hard lower shell 10b by gluing or other means. The rotation receiving member 120 is located on the side of the bottom plate 111 facing the hard upper shell 10a and is rotatably connected to the central axis 112. The rotation receiving member 120 is used to receive the rotational power provided by the outside. The ultrasonic transducer 150 is fixed on the side of the rotation receiving member 120 facing away from the bottom plate 111. The ultrasonic transducer 150 includes an ultrasonic transducer body 151 and an ultrasonic transducer lens 152 fixed on the ultrasonic transducer body 151. The ultrasonic wave emitted by the ultrasonic transducer body 151 passes through the ultrasonic transducer lens 152 and then is emitted to the outside of the hard upper shell 10a. The elastic member 130 is elastically supported between the base plate 111 and the rotating receiving member 120. The elastic member 130 provides an elastic supporting force for the ultrasonic transducer 150 to be close to the inner surface of the hard upper shell 10a through the rotating receiving member 120. The ultrasonic transducer lens 152 is squeezed against the inner surface of the hard upper shell 10a under the elastic supporting force provided by the elastic member 130.
[0051] The transducer rotation mechanism of this ultrasonic probe sets the elastic member 130 between the bottom plate 111 of the base 110 and the rotating receiving member 120, and the ultrasonic transducer 150 is fixed on the side of the rotating receiving member 120 facing away from the bottom plate 111. After receiving the rotational power, the rotating receiving member 120 can directly drive the ultrasonic transducer 150 to rotate, and the elastic member 130 can provide elastic supporting force for the ultrasonic transducer 150 through the rotating receiving member 120. Compared with the method in the prior art that the rotating receiving member 120 drives the ultrasonic transducer 150 to rotate and provides elastic supporting force through a thin metal spring sheet extending into the slot at one end of the rotating receiving member 120, it is not easy to cause the thin metal spring sheet to fall out of the slot, causing the ultrasonic transducer 150 to lose its rotation function, thereby improving the durability and reliability of the connection between the transducer rotation mechanism and the ultrasonic transducer 150. Moreover, since the ultrasonic transducer 150 and the rotating receiving member 120 are fixed to form a whole, the rotating receiving member 120 and the ultrasonic transducer 150 can perform synchronous rotational motion, and there is no transmission lag problem in the process of transmitting the rotational motion from the rotating receiving member 120 to the ultrasonic transducer 150, thereby improving the motion accuracy of the ultrasonic transducer 150. In addition, since the ultrasonic probe needs to be inserted into the human esophagus for use, the size of each component is very small, and the number of components of this transducer rotation mechanism is small, compared with the prior art, a plurality of very small parts are omitted, which not only saves costs, but also reduces the difficulty of product assembly and improves production efficiency.
[0052] In some embodiments, the rotating receiving member 120 is rotatably connected to the central shaft 112 via a bearing member 160, and the bearing member 160 can improve the stability of the rotating receiving member 120 during rotation and reduce the rotation friction resistance. In an alternative embodiment, the rotating receiving member 120 can also be directly rotatably connected to the central shaft 112, and the outer wall of the central shaft 112 can be coated with some wear-resistant coating to improve the friction performance; or the rotating receiving member 120 is rotatably connected to the central shaft 112 through a set made of polyimide material.
[0053] In some embodiments, the elastic member 130 includes a main body 131 and a spring part 132, the main body 131 is provided with a through hole for the central shaft 112 to pass through, one end of the spring part 132 is supported on the main body 131, and the other end is supported on the lower end surface of the rotating receiving member 120. This spring-type elastic member 130 composed of the main body 131 and the spring part 132 can withstand greater pressure and provide a relatively greater elastic support force for the ultrasonic transducer 150, which is conducive to the ultrasonic transducer 150 better maintaining a close contact state with the inner surface of the hard upper shell 10a. In an alternative embodiment, the elastic member 130 can also be a coil spring sleeved on the outer periphery of the central shaft 112.
[0054] In some embodiments, four spring pieces 132 are evenly spaced around the outer circumference of the main body 131, one end of the four spring pieces 132 is integrally connected to the outer wall of the main body 131, and the other end is inclined outward relative to the main body 131 and extends to the lower end surface of the rotating receiving member 120; the spring piece 132 is formed by bending the outer wall of the main body 131 upward at a certain angle. With such an arrangement, the elastic member 130 can provide effective support for the rotating receiving member 120 in a larger range below the rotating receiving member 120, which is conducive to improving the stability of the rotating receiving member 120 during rotation. It can be understood here that the number of spring pieces 132 is not limited to four, and can also be three or five or more, and one end of the spring piece 132 can also be integrally connected to the upper surface of the main body 131.
[0055] In some embodiments, the rotating receiving member 120 is annular, and the lower end surface of the rotating receiving member 120 is provided with four limiting grooves 126 arranged radially along the rotating receiving member 120, and the other end of the elastic sheet portion 132 extends into the limiting groove 126 and can slide in the limiting groove 126 under the guidance of the limiting groove 126. The extending direction of the limiting groove 126 is the same as the extending direction of the elastic sheet portion 132, and the groove width of the limiting groove 126 is the same as the width of the elastic sheet portion 132. The design in which part of the spring piece portion 132 extends into the limiting groove 126 allows the four spring piece portions 132 to be driven to rotate synchronously during the rotation of the rotating receiving member 120, greatly reducing the relative sliding between the spring piece portion 132 and the rotating receiving member 120, and greatly reducing the wear on the spring piece portion 132, thereby avoiding the problem of the spring piece portion 132 easily falling out of the limiting groove 126 due to excessive wear. The elastic member 130 can still provide a stable elastic support force for the ultrasonic transducer 150 after long-term use.
[0056] In some embodiments, the rotating receiving member 120 is provided with a guide rope groove 123 for the force transmission rope 170 to pass through, and both ends of the force transmission rope 170 pass through the inner cavity of the elongated hose 200 and are connected to the operating end 300; the force transmission rope 170 can be driven to move through the operating end 300, and the force transmission rope 170 can drive the rotating receiving member 120 to rotate around the central axis 112 when it moves. In an alternative embodiment, a guide rope cavity can also be provided in the rotating receiving member 120, and the force transmission rope 170 passes through the guide rope cavity and is confined in the guide rope cavity, and the force transmission rope 170 drives the rotating receiving member 120 to rotate through the guide rope cavity.
[0057] In some embodiments, the guide rope groove 123 is arranged on the upper end surface of the rotating receiving member 120 facing away from the bottom plate 111, and the force transmission rope 170 is at least partially in close contact with the groove wall of the guide rope groove 123. When the force transmission rope 170 moves, the rotating receiving member 120 is driven to rotate by the static friction between the force transmission rope 170 and the side wall of the guide rope groove 123. The guide rope groove 123 is at least partially non-arc-shaped to prevent the smooth transition from causing relative sliding between the force transmission rope 170 and the guide rope groove 123. In an alternative embodiment, the guide rope groove 123 can also be arranged on the outer peripheral wall of the rotating receiving member 120, and the guide rope groove 123 can be one or more, and each guide rope groove 123 has a force transmission rope 170 passing through it. The multiple force transmission ropes 170 drive the rotating receiving member 120 to rotate through the multiple guide rope grooves 123, so that the rotation of the rotating receiving member 120 can be more stable.
[0058] In some embodiments, the rotating receiving member 120 includes a chassis 121 and a boss 122 protruding upward from the middle of the chassis 121, the chassis 121 and the boss 122 are an integrally formed structure, and the guide rope groove 123 is arranged on the upper end surface of the chassis 121. The transducer rotating mechanism also includes a rotating transmission member 140 fixed to the side of the chassis 121 facing away from the bottom plate 111, and the rotating receiving member 120 covers the top opening of the guide rope groove 123. After the rotating transmission member 140 is fixed to the rotating receiving member 120, it covers the top opening of the guide rope groove 123, and the force transmission rope 170 is not easy to escape from the guide rope groove 123, which is conducive to improving the stability of the rotating receiving member 120 when the force transmission rope 170 drives the rotating receiving member 120 to perform a rotational motion.
[0059] Furthermore, the rotation transmission member 140 includes an integrally formed pressure cover 141 and a cylindrical structure 142. The pressure cover 141 is in the shape of a ring having the same shape as the chassis 121. The pressure cover 141 surrounds the outer periphery of the boss 122 and is pressed directly above the chassis 121 as a whole. The boss 122 is in the shape of a polygon. A polygonal inner hole 146 matching the shape of the boss 122 is provided in the middle of the pressure cover 141. With such a configuration, the rotation transmission member 140 can provide downward pressure for the rotation receiving member 120 in the entire upper space of the rotation receiving member 120. The downward pressure of the rotation transmission member 140 at various locations of the rotation receiving member 120 is more balanced, preventing the rotation receiving member 120 from irregular up and down swinging when rotating, and improving the stability of the rotation receiving member 120 during rotation. The cylindrical structure 142 is annular and surrounds the outer circumference of the ultrasonic transducer body 151. Under normal circumstances, there is a gap between the inner wall of the cylindrical structure 142 and the outer wall of the ultrasonic transducer body 151. A notch 145 is provided on one side of the cylindrical structure 142, and the cable connected to the ultrasonic transducer 150 extends outward through the notch 145. The cylindrical structure 142 mainly protects the ultrasonic transducer body 151 and prevents the ultrasonic transducer body 151 from directly hitting the external shell during rotation. In addition, the cylindrical structure 142 and the gland 141 are made into an integrated structural design. Compared with the separate manufacturing method of the cylindrical structure for protecting the ultrasonic transducer 150 and the gland structure for covering the guide rope groove in the prior art, the number of small-sized parts can be reduced, and the assembly difficulty and cost can be reduced.
[0060] In some embodiments, the ultrasonic transducer 150 is fixed to the chassis 121 of the rotating receiving member 120 by a first fastener 180. Specifically, a connecting column 153 is provided below the ultrasonic transducer body, and a connecting column hole 154 is provided in the connecting column 153, and the connecting column hole 154 is a blind hole with internal threads; a connecting hole 143 is provided on the rotating transmission member 140, and the connecting hole 143 is a through hole with two ends passing through; a first threaded hole 124 is provided on the gland 141 of the rotating receiving member 120; and the first fastener 180 is specifically a screw. During assembly, the first fastener 180 is screwed into the first threaded hole 124 and passes through the connecting hole 143 until the first fastener 180 is screwed into the connecting column hole 154 in the connecting column 153. In this way, the ultrasonic transducer 150, the rotating transmission member 140 and the rotating receiving member 120 can be fixedly connected together by using a first fastener 180, which has the advantages of simple structure and few assembly parts. Furthermore, the rotation transmission member 140 is fixed to the chassis 121 of the rotation receiving member 120 through two second fasteners 190. The chassis 121 of the rotation receiving member 120 is provided with two second threaded holes 125, and the rotation transmission member 140 is provided with two third threaded holes 144. The second fasteners 190 are specifically screws, and the second fasteners 190 are threadedly connected to the second threaded holes 125 and the third threaded holes 144 to fix the rotation transmission member 140 and the rotation receiving member 120 as a whole. Such a configuration can improve the connection reliability between the rotation transmission member 140 and the rotation receiving member 120, and the two can better form a whole.
[0061] Furthermore, the rotating transmission member 140 is provided with a plurality of guide holes 147, and the ultrasonic transducer 150 is provided with a plurality of guide posts 155 extending into the guide holes 147. The guide posts 155 extending into the guide holes 147 can pre-position the ultrasonic transducer 150 on the rotating transmission member 140, thereby preventing the connection posts 153 on the ultrasonic transducer 150 from being difficult to accurately position with the connection holes 143 on the rotating transmission member 140 when the first fastener 180 is installed, thereby reducing the difficulty of assembly.
[0062] In some embodiments, the bottom plate 111 of the base 110 is fixed to the hard lower shell 10b by gluing to form an integral structure, and an ultrasonic window corresponding to the position of the ultrasonic transducer 150 is provided on the hard upper shell 10a. The elastic member 130 provides an elastic supporting force for the ultrasonic transducer 150 by rotating the receiving member 120. The elastic supporting force can make the ultrasonic transducer 150 squeeze the inner surface of the hard upper shell 10a and make the ultrasonic emitting surface or the ultrasonic receiving surface of the ultrasonic transducer 150 align with the ultrasonic window on the hard upper shell 10a. During the assembly process of the hard part of the probe, the transducer rotating mechanism of the ultrasonic probe is first fixed on the hard lower shell 10b. At this time, since the hard upper shell 10a has not been installed yet, the elastic supporting force provided by the elastic member 130 for the ultrasonic transducer 150 makes the ultrasonic transducer 150 lift up a certain distance. Since the vertical dimension space of the installation cavity inside the hard part of the probe is pre-set, when the hard upper shell 10a is buckled on the hard lower shell 10b, the upper surface of the ultrasonic transducer 150 initially contacts the inner surface of the hard upper shell 10a; as the hard upper shell 10a continues to move downward until it is completely buckled on the hard lower shell 10b, the ultrasonic transducer 150 will squeeze the elastic member 130 downward, the elastic member 130 is compressed, and the ultrasonic transducer 150 is squeezed downward by the hard upper shell 10a and moved a certain distance until the hard upper shell 10a is installed in place. After installation, since the elastic member 130 and the ultrasonic transducer 150 above are always squeezed downward by the hard upper shell 10a, the elastic member 130 will also generate the same reaction force to continuously squeeze the ultrasonic transducer 150 upward, so that the upper surface of the ultrasonic transducer 150 is always in contact with the inner surface of the hard upper shell 10a, ensuring that the upper surface of the ultrasonic transducer 150 is always parallel to the inner surface of the hard upper shell 10a, which is important for the ultrasonic probe to send and receive ultrasonic signals during patient exploration.
[0063] In summary, the transducer rotation mechanism and hard tip 100 of the ultrasonic probe provided by the embodiment of the utility model, by arranging the elastic member 130 between the bottom plate 111 of the base 110 and the rotating receiving member 120, the ultrasonic transducer 150, the rotating transmission member 140 and the rotating receiving member 120 are fixed as a whole, and the rotating receiving member 120 can directly drive the ultrasonic transducer 150 to rotate after receiving the rotating power, and the elastic member 130 can provide the ultrasonic transducer 150 with an elastic supporting force to press the inner surface of the hard upper shell 10a through the rotating receiving member 120. Compared with the prior art, it has the advantages of high durability and reliability, high movement accuracy of the ultrasonic transducer 150, small number of components, easy assembly, and low production cost. In addition, the elastic supporting force provided by the elastic member 130 can make the upper surface of the ultrasonic transducer 150 always parallel to the inner surface of the hard upper shell 10a, which is conducive to improving the quality of the ultrasonic signal sent and received by the ultrasonic probe during the patient exploration process.
[0064] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.
Claims
1. A transducer rotation mechanism of an ultrasonic probe, characterized in that: include: A base (110) comprising a bottom plate (111) and a central shaft (112) connected to the bottom plate (111); a rotation receiving member (120), located on the bottom plate (111) and rotatably connected to the central shaft (112), and used for receiving rotational power provided from the outside; a side of the rotation receiving member (120) facing away from the bottom plate (111) is suitable for fixedly connecting an ultrasonic transducer (150); An elastic member (130) is elastically arranged between the base plate (111) and the rotating receiving member (120), and is suitable for providing elastic force to the ultrasonic transducer (150) through the rotating receiving member (120).
2. The transducer rotation mechanism of the ultrasonic probe according to claim 1, characterized in that: The rotating receiving member (120) is rotatably connected to the central shaft (112) via a bearing member (160).
3. The transducer rotation mechanism of the ultrasonic probe according to claim 1, characterized in that: The elastic member (130) comprises a main body (131) and a spring sheet (132); the main body (131) is provided with a through hole for the central axis (112) to pass through; one end of the spring sheet (132) is supported on the main body (131) and the other end is supported on the lower end surface of the rotating receiving member (120).
4. The transducer rotation mechanism of the ultrasonic probe according to claim 3, characterized in that: A plurality of the spring pieces (132) are arranged around the outer circumference of the main body (131), one end of each of the spring pieces (132) is integrally connected to the outer wall of the main body (131), and the other end of each of the spring pieces (132) is inclined outwardly relative to the main body (131) and extends to the lower end surface of the rotating receiving member (120).
5. The transducer rotation mechanism of the ultrasonic probe according to claim 4, characterized in that: The lower end surface of the rotating receiving member (120) is provided with a plurality of limiting grooves (126), and the other end of the elastic sheet portion (132) extends into the limiting groove (126) and can slide along the guiding direction of the limiting groove (126).
6. The transducer rotation mechanism of the ultrasonic probe according to any one of claims 1 to 5, characterized in that: The rotating receiving member (120) is provided with a guide rope groove (123) for the force transmission rope (170) to pass through, and both ends of the force transmission rope (170) pass through the inner cavity of the slender hose (200) and are connected to the operating end (300).
7. The transducer rotation mechanism of the ultrasonic probe according to claim 6, characterized in that: The rope guide groove (123) is arranged on the upper end surface of the rotating receiving member (120) facing away from the bottom plate (111).
8. The transducer rotation mechanism of the ultrasonic probe according to claim 7, characterized in that: A rotation transmission component (140) is fixedly connected to a side of the rotation receiving component (120) facing away from the bottom plate (111), and the rotation receiving component (120) covers the top opening of the rope guide groove (123).
9. The transducer rotation mechanism of the ultrasonic probe according to claim 8, characterized in that: The rotating receiving member (120) comprises a chassis (121) and a boss (122) protruding upward from the middle of the chassis (121); the rope guide groove (123) is arranged on the chassis (121); and the rotating transmitting member (140) comprises a pressure cover (141) surrounding the outer periphery of the boss (122) and pressed as a whole onto the chassis (121).
10. The transducer rotation mechanism of the ultrasonic probe according to claim 9, characterized in that: The rotating receiving member (120) further comprises a cylindrical structure (142) connected to the pressure cover (141) and surrounding the outer periphery of the ultrasonic transducer (150).
11. The transducer rotation mechanism of the ultrasonic probe according to claim 9, characterized in that: The rotation transmission member (140) is provided with a connection hole (143), and the ultrasonic transducer (150) is fixedly connected to the rotation receiving member (120) via a first fastener (180), and the first fastener (180) passes through the connection hole (143).
12. A hard tip of an ultrasound probe, characterized in that: The invention comprises a hard upper shell (10a) and a hard lower shell (10b) which are interlocked, wherein the hard upper shell (10a) and the hard lower shell (10b) enclose a receiving cavity; a transducer rotating mechanism of an ultrasonic probe as described in any one of claims 1 to 11 is arranged in the receiving cavity; a bottom plate (111) of the base (110) is fixed on the hard lower shell (10b); an ultrasonic transducer (150) is fixedly connected to a side of the rotating receiving member (120) facing away from the bottom plate (111); and the elastic member (130) provides elastic force to the ultrasonic transducer (150) through the rotating receiving member (120) so that the ultrasonic transducer (150) presses the inner surface of the hard upper shell (10a).