Ultrasound imaging apparatus

Abstract

The ultrasonic imaging device comprises an ultrasonic probe and an operating handle, the ultrasonic probe comprises a sheathing canal, an energy converter arranged in the sheathing canal, a torsion piece at least partially located in the sheathing canal and a connecting piece connecting the torsion piece and the energy converter, and the energy converter comprises a plurality of array elements. The operating handle is connected with the torsion part and used for manually driving the torsion part to twist, and when the torsion part twists, the transducer can be driven to rotate through the connecting part. When the ultrasonic probe is used, the transducer only needs to be manually driven by the operating handle to rotate so as to find the optimal scanning direction, high-speed rotation is not needed, the ultrasonic probe can carry out Doppler imaging, especially Doppler blood flow can be observed, a doctor can carry out clinical diagnosis conveniently, and the cost of a patient can be saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical technology field especially, relate to an ultrasonic imaging device. BACKGROUND

[0002] In the existing medical scene, when needing to check the inside of digestive tract, usually adopts ultrasonic probe or ultrasonic endoscope to check. Ultrasonic endoscope is the digestive tract checking technology that combines endoscope and ultrasonic, when endoscope is inserted into human body, can obtain the histological characteristics of the hierarchical structure of gastrointestinal tract and the ultrasonic image of surrounding adjacent organs by using the real-time scanning of ultrasonic under endoscope, while directly observing the mucosa lesion of digestive tract of endoscope, but the existing ultrasonic endoscope equipment is expensive, and the popularization rate is low.

[0003] The existing ultrasonic probe obtains the tomographic image of human digestive tract by the 360 ° high-speed rotation of its transducer in the body cavity of human body when using, so that early canceration and microtumor and other diseases can be checked out. The transducer of the above-mentioned ultrasonic probe needs 360 ° high-speed rotation when using, cannot scan multiple times in a short time to a position to carry out Doppler imaging, especially cannot observe Doppler blood flow, which is not conducive to clinical diagnosis. SUMMARY

[0004] The utility model discloses a kind of ultrasonic imaging devices capable of Doppler imaging.

[0005] To achieve the above object, the utility model provides an ultrasonic imaging device, including ultrasonic probe and operating handle, the ultrasonic probe includes sheath, transducer arranged in the sheath, torsion piece at least partially located in the sheath, connecting piece connecting the torsion piece and the transducer, the transducer includes multiple array elements, the operating handle is connected with the torsion piece and is used to manually drive the torsion piece to twist, the torsion piece twists, can drive the transducer to rotate by the connecting piece.

[0006] As a further improvement of the utility model, the transducer is one of linear array transducer, convex array transducer and phased array transducer.

[0007] As a further improvement of the utility model, the connecting piece is provided with a notch, the notch is concave from the outer periphery of the connecting piece, and the transducer is arranged in the notch.

[0008] As a further improvement of the utility model, the torsion piece and the connecting piece are tubular, and the ultrasonic probe further includes a wire penetrating into the torsion piece and the connecting piece, a flexible circuit board located in the connecting piece and electrically connected with the wire and the transducer.

[0009] As a further improvement of the utility model, the connecting piece is made of metal material, and a plurality of cutting grooves are further formed on the connecting piece.

[0010] As a further improvement of the utility model, the cutting grooves are not completely closed annular and coaxially arranged on the connecting piece, and the number of the cutting grooves is n, and the position of the latter cutting groove is rotated by a preset angle clockwise or counterclockwise relative to the position of the former cutting groove.

[0011] As a further improvement of the utility model, the connecting piece is a woven piece formed by at least high polymer material and metal material.

[0012] As a further improvement of the utility model, the wall thickness of the connecting piece is 0.04mm-0.08mm.

[0013] As a further improvement of the utility model, the sheath comprises a main pipe body and a sleeve, the main pipe body is provided with an open first port and a second port, the first port is located at the operating handle, the sleeve seals the second port, the main pipe body is a woven piece, and the sleeve is bonded or welded to the main pipe body.

[0014] As a further improvement of the utility model, the operating handle comprises a handle main body, an inner rotating piece rotatably connected to the handle main body and an outer knob piece rotatably connected to the handle main body, the inner rotating piece is used for connecting a torsion piece of an ultrasonic probe, the outer knob piece is arranged around the inner rotating piece, and the operating handle is configured so that the outer knob piece can drive the inner rotating piece to rotate.

[0015] Beneficial effects:

[0016] The ultrasonic imaging device provided by the utility model can be used in the following way: the transducer only needs to be manually driven to rotate through the operating handle to find the best scanning direction, without high-speed rotation, the ultrasonic probe can perform Doppler imaging, especially can observe Doppler blood flow, which is convenient for doctors to perform clinical diagnosis and can also save the cost of patients. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic view of the ultrasonic imaging device provided by an embodiment of the utility model;

[0018] Figure 2 It is Figure 1 It is a sectional view of the ultrasonic probe;

[0019] Figure 3 It is Figure 2An enlarged schematic view of the lower half portion;

[0020] Figure 4 A three-dimensional structural schematic view of the connecting piece and the transducer in the ultrasonic probe provided by an embodiment of the present application;

[0021] Figure 5 A three-dimensional schematic view of the ultrasonic imaging device provided by an embodiment of the present application, which contains an imaging host;

[0022] Figure 6 A side view of the ultrasonic imaging device in Figure 1

[0023] Figure 7 A part of the sectional view of the ultrasonic imaging device in Figure 6

[0024] Figure 8 An exploded schematic view of the partial structure of the ultrasonic probe provided by an embodiment of the present application;

[0025] Figure 9 Another part of the sectional view of the ultrasonic imaging device in Figure 6

[0026] An enlarged schematic view of C in Figure 10 Figure 9

[0027] A sectional view of the ultrasonic imaging device in Figure 11 Figure 6 A three-dimensional structural schematic view of the outer knob piece and the second magnetic force piece in

[0028] Figure 12 Figure 11 An exploded schematic view of the inner rotating piece and the first magnetic force piece in

[0029] Figure 13 An exploded schematic view of the operating handle provided by an embodiment of the present application; Figure 11

[0030] A schematic view of the corresponding relationship between the first magnetic force piece and the second magnetic force piece in Figure 14

[0031] An exploded schematic view of the handle in Figure 15 Figure 7 An exploded schematic view of the handle in

[0032] Figure 16 Figure 5 An exploded schematic view of the handle in

[0033] Figure 17 An exploded schematic view of the handle in Figure 12 ​​​​​​​A perspective view of the middle bridge sleeve.

[0034] In the figure:

[0035] 100, an ultrasonic imaging device;

[0036] 10, an ultrasonic probe; 11, a sheath; 111, a main body; 112, an envelope; 12, a transducer; 13, a torsion piece; 14, a connecting piece; 141, a notch; 142, a cutting groove; 15, a wire; 16, a flexible circuit board;

[0037] 20, an operating handle;

[0038] 21, a handle main body; 211, a grip handle; 2111, a holding part; 2111a, a first housing; 2111b, a second housing; 2112, a bridge sleeve; 212, a sleeve; 213, a receiving hole; 2131, a first receiving section; 2132, a second receiving section; 214, a limiting structure; 2141, a clamping groove; 2142, a clamping buckle; 215, a rotation limiting structure; 2151, a limiting groove; 2152, an abutting block; 216, a first bearing; 217, a second bearing; 218, a first sealing ring; 219, a second sealing ring;

[0039] 22, an inner rotating piece; 221, a first receiving groove; 222, a connecting hole; 223, an extending part; 224, a first rotating part; 225, a second rotating part;

[0040] 23, an outer knob piece; 231, a second receiving groove;

[0041] 24, a first magnetic force piece;

[0042] 25, a second magnetic force piece;

[0043] 26, a sealing ring;

[0044] 27, a stress dispersion pipe; 271, a first through hole;

[0045] 28, a top cover;

[0046] 29, a connector; 291, a protective sleeve;

[0047] 30, an imaging host. DETAILED DESCRIPTION

[0048] The utility model will be described in detail below in combination with the embodiments shown in the drawings. However, the embodiments do not limit the utility model, and the changes in mechanism, method, or function made by those skilled in the art based on the embodiments are all included in the protection scope of the utility model.

[0049] As used herein, terms such as "upper", "lower", "left", "right", "front", "back", and the like refer to spatial relative positions for the purpose of convenient description and depict the relationship of one feature to another as shown in the drawings. It is understood that the spatial relative position terms can be intended to include different orientations than shown in the figures, and should not be construed as limiting the claims. In addition, the descriptive word "horizontal" herein is not completely equivalent to along the direction perpendicular to the gravity direction, and a certain angle of inclination is allowed.

[0050] As shown in Figure 1 An embodiment of the present application provides an ultrasonic imaging device 100, which comprises an ultrasonic probe 10 and an operating handle 20.

[0051] As shown in Figure 2 The ultrasonic probe 10 comprises a sheath tube 11, a transducer 12 arranged in the sheath tube 11, a torsion member 13 arranged at least partially in the sheath tube 11, and a connecting member 14 connecting the torsion member 13 and the transducer 12.

[0052] The transducer 12 is used for emitting ultrasonic waves to human tissues and receiving echoes with human tissue information, so that the ultrasonic imaging device 100 can obtain imaging of the human tissues. The operating handle 20 is connected to the torsion member 13, and an operator can first extend the ultrasonic probe 10 into the digestive tract of the human body when using the ultrasonic imaging device 100, and then drive the torsion member 13 to twist through the operating handle 20. The torsion member 13 twists, so that the connecting member 14 and the transducer 12 connected to the connecting member 14 rotate, so that the transducer 12 can scan the human tissues.

[0053] The transducer 12 of the existing ultrasonic probe 10 only comprises a single or double array element. When the human body is examined, a mechanical device is required to drive the transducer 12 to rotate at a high speed for ring scanning. The transducer 12 cannot be scanned at a position for multiple times in a short time for Doppler imaging, especially cannot observe Doppler blood flow, which is not conducive to clinical diagnosis.

[0054] In the embodiment, the transducer 12 comprises a plurality of array elements. When the human body is examined, the transducer 12 only needs to be manually driven to rotate through the operating handle 20 to find the best scanning direction, without high-speed rotation. The ultrasonic probe 10 can perform Doppler imaging, especially can observe Doppler blood flow, which is more convenient for doctors to perform clinical diagnosis.

[0055] In the embodiment, the number of array elements of the transducer 12 is greater than 2, and can be 48, 68 or 128. The transducer 12 is one of a linear array transducer, a convex array transducer and a phased array transducer.

[0056] As shown inFigure 4 As shown in FIG. 7, the connecting piece 14 is provided with a notch 141 formed by concave setting from the outer periphery of the connecting piece 14, and the transducer 12 is arranged in the notch 141 to avoid the connecting piece 14 from shielding the signals transmitted and received by the transducer 12. The transducer 12 can be connected to the connecting piece 14 by gluing. The torsion piece 13 can be connected to the connecting piece 14 by gluing, soldering or laser welding.

[0057] In the embodiment, the torsion piece 13 and the connecting piece 14 are both in tubular shape, and the ultrasonic probe 10 further comprises a wire 15 penetrating into the torsion piece 13 and the connecting piece 14, and a flexible circuit board 16 arranged in the connecting piece 14 and electrically connected to the wire 15 and the transducer 12, the flexible circuit board 16 being flexible. The torsion piece 13 can be made of stainless steel or nickel-titanium alloy and has a double-layer or triple-layer structure to effectively transmit the torsion force.

[0058] The ultrasonic imaging device 100 further comprises an imaging host 30, and the transducer 12 needs to be electrically connected to the imaging host 30 when the ultrasonic imaging device 100 is in use, so that the imaging host 30 can display the human tissue image formed by the transducer 12 scanning the human body. Specifically, the operating handle 20 comprises a protective sleeve 291 connected to the rear end of the handle main body 21, and the protective sleeve 291 is provided with a connector 29 at the end away from the handle main body 21, the transducer 12 is electrically connected to the connector 29 through the connecting piece 14 and the wire 15, the protective sleeve 191 protects the wire 15, and the connector 29 is used to be electrically connected to the imaging host 30, so that the transducer 12 and the imaging host 30 can be electrically connected and transmit signals therebetween, and the imaging host 30 can supply power to the transducer 12.

[0059] When the ultrasonic imaging device 100 is in use, the connecting piece 14 and the transducer 12 connected to the connecting piece 14 need to be rotated, and the flexible circuit board 16 electrically connected to the wire 15 and the transducer 12 is flexible, which can ensure that the wire 15 can not rotate when the transducer 12 rotates.

[0060] In the embodiment, the wire 15 and the flexible circuit board 16 can be connected together by welding. The wire 15 can be coaxial wire or multi-strand wire.

[0061] In this embodiment, the connector 14 is made of a metal material (e.g., stainless steel or nickel-titanium alloy), and the connector 14 is also provided with several grooves 142, which give the connector 14 a certain degree of flexibility. When the ultrasound imaging device 100 is used, before inserting the ultrasound probe 10 into the human digestive tract, the endoscope must first be inserted into the human digestive tract. The ultrasound probe 10 is inserted into the human digestive tract through the endoscope's channel. The endoscope's channel may be curved, and the aforementioned connector 14 with a certain degree of flexibility can adapt to the curvature of the endoscope's channel.

[0062] Specifically, the aforementioned groove 142 is an incompletely closed annulus and is coaxially arranged with the connector 14. Several grooves 142 are spaced apart along the axial direction of the connector 14. Assuming the number of grooves 142 is n, among the 1-n grooves 142 spaced apart along the axial direction of the connector 14, the position of the subsequent groove 142 is rotated clockwise or counterclockwise by a predetermined angle relative to the position of the preceding groove 142. In this way, the connector 14 possesses a certain degree of flexibility while also being able to withstand a certain torsional force.

[0063] In this embodiment, if the position of the next groove 142 is rotated clockwise or counterclockwise by a preset angle relative to the position of the previous groove 142, then the grooves 142 are arranged in a spiral shape on the connector 14.

[0064] In another embodiment of this utility model, the connector 14 may also be a braided component, which is formed by weaving at least a polymer material and a metal material. In this way, the connector 14 can also have sufficient flexibility and sufficient strength. Specifically, the connector 14 may include an inner layer formed by weaving a polymer material and an outer layer formed by weaving a metal material to wrap around the inner layer.

[0065] The aforementioned polymeric material may be at least one of polytetrafluoroethylene, polyolefin, polyimide, nylon, polyether block polyamide, and polyurethane, and the aforementioned metallic material may be stainless steel round wire or stainless steel flat wire. The weaving density (PPI) of the metallic material is 20-100.

[0066] In this embodiment, the wall thickness of the connector 14 is 0.04mm-0.08mm, thus ensuring that the connector 14 can accommodate the transducer 12 while also possessing sufficient strength. The outer diameter of the sheath 11 is 2mm-3mm.

[0067] like Figure 8 As shown, the sheath 11 includes a main body 111 and a cover 112. The main body 111 has an open first port and a second port. The first port is located at the operating handle 20. The cover 112 closes the second port. The main body 111 is a braided piece. The cover 112 is bonded or welded to the main body 111.

[0068] Similarly to the connecting piece 14, the main pipe body 111 is at least formed by braiding a high molecular material and a metal material, and specifically can include an inner layer formed by braiding a high molecular material and an outer layer wrapping the inner layer and formed by braiding a metal material. The envelope 112 can be welded to the main pipe body 111 by means of hot melting welding or laser welding, and is integrally arranged with the main pipe body 111.

[0069] The high molecular material can be at least one of polytetrafluoroethylene, polyolefin, polyimide, nylon, polyether block polyamide, and polyurethane, and the metal material can be stainless steel round wire or stainless steel flat wire. The braiding density PPI of the metal material is 20-100.

[0070] Continuing to combine Figure 9 As shown in FIG. 14, the operation handle 20 includes a handle body 21, an inner rotating piece 22 rotatably connected to the handle body 21, and an outer knob piece 23 rotatably connected to the handle body 21. The inner rotating piece 22 is used to connect the torsion piece 13 of the ultrasonic probe 10, and the outer knob piece 23 is arranged around the inner rotating piece 22. In this embodiment, the operation handle 20 is configured such that when the outer knob piece 23 rotates, the inner rotating piece 22 also rotates. The rotation axes of the outer knob piece 23 and the inner rotating piece 22 are coaxially arranged.

[0071] The operator manually drives the outer knob piece 23 to rotate, which can drive the inner rotating piece 22 to rotate, and correspondingly, drive the torsion piece 13 to twist. When the torsion piece 13 twists, the transducer 12 also rotates. In this embodiment, the rotation of the outer knob piece 23 can be transmitted to the transducer 12 one-to-one.

[0072] Specifically, the operation handle 20 includes a first magnetic force piece 24 arranged on the inner rotating piece 22 and a second magnetic force piece 25 arranged on the outer knob piece 23. The first magnetic force piece 24 and the second magnetic force piece 25 are arranged in cooperation, so that the outer knob piece 23 can drive the inner rotating piece 22 to rotate.

[0073] In the embodiment, the inner rotating member 22 is located inside the handle main body 21, and the outer knob member 23 is located outside the handle main body 21. The sheath tube 11 has a proximal end close to the operating handle 20 and a distal end away from the operating handle 20. The transducer 12 is located at the distal end. The sheath tube 11 is filled with a coupling agent in use of the ultrasonic probe 10. The coupling agent can reduce the acoustic impedance between the transducer 12 and the human tissue, and ensure the imaging quality of the ultrasonic probe 10. The proximal end of the sheath tube 11 is open. The torsion member 13 extends out of the sheath tube 11 from the proximal end. In the above arrangement, the inner rotating member 22 is connected to the part of the torsion member 13 extending out of the sheath tube 11 from the proximal end. The inner rotating member 22 is arranged inside the handle main body 21. The handle main body 21 is filled with the coupling agent, so that the coupling agent can be kept in the sheath tube 11. The first magnetic force member 24 and the second magnetic force member 25 are arranged to enable the outer knob member 23 to drive the inner rotating member 22 to rotate without contacting the inner rotating member 22. In this way, the structural complexity and manufacturing cost of the operating handle 20 are reduced.

[0074] As a preferred scheme of the embodiment, the first magnetic force member 24 and the second magnetic force member 25 are both provided in plurality. The plurality of first magnetic force members 24 are arranged around the rotation axis of the inner rotating member 22. The plurality of second magnetic force members 25 are arranged around the rotation axis of the outer knob member 23. The plurality of first magnetic force members 24 and the plurality of second magnetic force members 25 are arranged in one-to-one correspondence. The corresponding first magnetic force member 24 and the corresponding second magnetic force member 25 attract each other.

[0075] The two sides of the magnet are N pole and S pole. For two magnets, the same poles attract each other, and the different poles repel each other. Figure 11 As shown in the figure, the "corresponding first magnetic force member 24 and the corresponding second magnetic force member 25 attract each other" should be understood as follows: in the corresponding first magnetic force member 24 and the corresponding second magnetic force member 25, if the side of the first magnetic force member 24 close to the second magnetic force member 25 is N pole, then the side of the second magnetic force member 25 close to the first magnetic force member 24 is S pole. If the side of the first magnetic force member 24 close to the second magnetic force member 25 is S pole, then the side of the second magnetic force member 25 close to the first magnetic force member 24 is N pole.

[0076] As shown in the figure, Figure 15 In the embodiment, in the x second magnetic force members 25 arranged around the rotation axis of the inner rotating member 22 in sequence, the polarity of the first y second magnetic force members 25 and the last (x-y) second magnetic force members 25 towards the side of the inner rotating member 22 is different, where y < x.

[0077] For example, when x = 2 and y = 1, the polarity of any two adjacent second magnetic force pieces 25 facing the inner rotating piece 22 is different, one of the any two adjacent second magnetic force pieces 25 facing the inner rotating piece 22 is N-pole, and the other is S-pole. It can be imagined that in the above case, the polarity of any two adjacent first magnetic force pieces 24 facing the outer knob piece 23 is also different, so that the corresponding first magnetic force piece 24 and the second magnetic force piece 25 can attract each other.

[0078] With the above arrangement, when the outer knob piece 23 drives the inner rotating piece 22 to rotate, the rotation angles of the two can be kept as synchronized as possible, and the plurality of first magnetic force pieces 24 and the plurality of second magnetic force pieces 25 can be kept in a one-to-one corresponding state. When the outer knob piece 23 drives the inner rotating piece 22 to rotate, the one-to-one corresponding relationship of the plurality of first magnetic force pieces 24 and the plurality of second magnetic force pieces 25 will not change.

[0079] When x = 2 and y = 1, the plurality of second magnetic force pieces 25 can be regarded as being arranged alternately "one by one" according to the polarity facing the inner rotating piece 22. In other embodiments, x and y can also take other values, such as x = 4 and y = 2, at this time, the plurality of second magnetic force pieces 25 can be regarded as being arranged alternately "two by two" according to the polarity facing the inner rotating piece 22.

[0080] The inner rotating piece 22 is provided with a plurality of first receiving grooves 221, and the outer knob piece 23 is provided with a plurality of second receiving grooves 231. The plurality of first magnetic force pieces 24 are respectively embedded in the plurality of first receiving grooves 221 and are positioned by the plurality of first receiving grooves 221. The plurality of second magnetic force pieces 25 are respectively embedded in the plurality of second receiving grooves 231 and are positioned by the plurality of second receiving grooves 231. In this embodiment, six first magnetic force pieces 24 and six second magnetic force pieces 25 are specifically provided, the six first magnetic force pieces 24 are uniformly arranged around the rotation axis of the inner rotating piece 22, and the six second magnetic force pieces 25 are uniformly arranged around the rotation axis of the outer knob piece 23.

[0081] In other embodiments, other structures are further provided between the outer knob piece 23 and the inner rotating piece 22 to enable the outer knob piece to drive the inner rotating piece to rotate.

[0082] In this embodiment, the handle main body 21 includes a handle 211 and a sleeve 212 connected to the front side of the handle 211. The sleeve 212 is provided with a receiving hole 213 extending through the front and back. The inner rotating piece 22 includes a connecting hole 222 for connecting the torsion piece 13 of the ultrasonic probe 10. The connecting hole 222 extends through the inner rotating piece 22 along the front and back directions, and its axis is coaxially arranged with the rotation axis of the inner rotating piece 22.

[0083] The outer knob 23 and the inner rotating member 22 are both rotationally connected to the handle main body 21, and a part of the inner rotating member 22 is located inside the handle main body 21, and another part of the inner rotating member 22 extends into the receiving hole 213. Since the connection hole 222 penetrates the inner rotating member 22 from front to back, one end of the connection hole 222 is located in the receiving hole 213, and the outer knob 23 is located outside the handle main body 21. The operating handle 20 further comprises a sealing ring 26 arranged in the receiving hole 213, which is arranged between the inner rotating member 22 and the sleeve 212 to seal one end of the receiving hole 213 close to the inner rotating member 22.

[0084] It should be noted that the front-rear direction herein is the left-right direction when the operating handle 20 is in the state shown in the drawings, wherein the right side is the front side and the left side is the rear side. The front-rear direction can also be referred to as the axial direction of the operating handle 20. Figure 9

[0085] When the ultrasonic probe 10 is connected to the operating handle 20, the part of the torsion member 13 extending out of the sheath tube 11 from the proximal end penetrates into the connection hole 222 and is connected to the inner rotating member 22. The sheath tube 11 is located at the front side of the inner rotating member 22 and is arranged forwardly out of the receiving hole 213, and the proximal end of the sheath tube 11 is located in the receiving hole 213. In the above arrangement, the proximal end of the sheath tube 11 is located in the receiving hole 213, and the receiving hole 213 can be filled with a coupling agent, so as to ensure that there is enough coupling agent in the sheath tube 11, and the transducer 12 at the distal end can be completely immersed in the coupling agent.

[0086] The inner rotating member 22 can comprise a first rotating part 224 and a second rotating part 225. The first rotating part 224 is rotationally connected to the handle main body 21, and the first receiving groove 221 is arranged in the first rotating part 224. The second rotating part 225 is detachably connected to the front side of the first rotating part 224, and the connection hole 222 is arranged in the second rotating part 225. When the first rotating part 224 and the second rotating part 225 are detached, the first magnetic force member 24 can be embedded in the first receiving groove 221.

[0087] Further, the operating handle 20 further comprises a stress dispersion tube 27 arranged at the front side of the sleeve 212, a top cover 28 connecting the sleeve 212 and the stress dispersion tube 27, the sleeve 212 is located inside the top cover 28, the stress dispersion tube 27 is provided with a front-rear penetrating first perforation 271, the first perforation 271 is coaxially arranged with the receiving hole 213, and the stress dispersion tube 27 is made of flexible material. After the sheath tube 11 penetrates out of the receiving hole 213, it further penetrates through the first perforation 271, that is, at least part of the ultrasonic probe 10 is located in the first perforation 271. The stress dispersion tube 27 plays a certain supporting role for the ultrasonic probe 10, and because the stress dispersion tube 27 is made of flexible material, when the ultrasonic probe 10 is bent at the stress dispersion tube 27, the stress dispersion tube 27 will deform accordingly, so that the ultrasonic probe 10 is not easy to break.​

[0088] The accommodation hole 213 includes a first accommodation section 2131 and a second accommodation section 2132 located in front of the first accommodation section 2131, wherein the diameter of the first accommodation section 2131 is larger than that of the second accommodation section 2132. The proximal end of the sheath tube 11 is located in the first accommodation section 2131, and the first accommodation section 2131 has a larger diameter to accommodate sufficient coupling agent. The diameter of the second accommodation section 2132 is slightly larger than the outer diameter of the sheath tube 11, so that the sheath tube 11 can pass through. The diameter of the first perforation 271 is matched with the outer diameter of the outer sheath tube 11, so that the part of the outer sheath tube 11 located in the first perforation 271 and the hole wall of the first perforation 271 are tightly matched. In this way, even if the coupling agent in the first accommodation hole 213 flows forward through the small gap between the hole wall of the second accommodation section 2132 and the sheath tube 11, it cannot overflow to the outside of the operating handle 20.

[0089] The outer knob 23 and the top cover 28 are further provided with a rotation limiting structure 215 for limiting the rotation range of the outer knob 23 relative to the top cover 28.

[0090] The rotation limiting structure 215 includes a limiting groove 2151 provided on the outer knob 23 and an abutting block 2152 formed on the top cover 28 and located in the limiting groove 2151. The limiting groove 2151 extends along the circumferential direction of the outer knob 23 and is generally arc-shaped. The position of the top cover 28 is fixed relative to the handle body 21. When the outer knob 23 rotates, the limiting groove 2151 will follow the rotation. During the rotation of the outer knob 23, if the abutting block 2152 abuts against the end of the limiting groove 2151, the outer knob 23 cannot rotate.

[0091] With the above arrangement, the outer knob 23 can only rotate within a predetermined range, so the torsion member 13 cannot be twisted unlimitedly, and thus the flexible circuit board 14 cannot be broken due to unlimited twisting of the torsion member 13.

[0092] It is conceivable that in other embodiments, the limiting groove 2151 can also be provided on the top cover, and the abutting block can also be formed on the outer knob. Alternatively, the rotation limiting structure 215 is formed between the handle body 21 and the outer knob 23.

[0093] As Figure 9 , 16As shown in FIG. 17, the handle 211 comprises a holding part 2111 and a bridging sleeve 2112, the holding part 2111 is for an operator to hold, and comprises a first housing 2111a and a second housing 2111b located on two sides of the holding part 2111 in the radial direction respectively, and the bridging sleeve 2112 surrounds the first housing 2111a and the second housing 2111b on the side close to the inner rotating part 22, so that the first housing 2111a and the second housing 2111b are spliced together, and the sleeve 212 is connected to the front side of the bridging sleeve 2112.

[0094] In the embodiment, at least part of the inner rotating part 22 is located in the bridging sleeve 2112, and the inner rotating part 22 comprises an extending part 223 extending into the holding part 2111, the extending part 223 is rotationally connected to the holding part 2111, and the outer knob part 23 is rotationally connected to the bridging sleeve 2112.

[0095] The bridging sleeve 2112 and the holding part 2111 are detachably arranged, when the bridging sleeve 2112 is separated from the holding part 2111, the first housing 2111a and the second housing 2111b can be separated, and when the bridging sleeve 2112 surrounds the first housing 2111a and the second housing 2111b, the first housing 2111a and the second housing 2111b can be spliced together, that is, the bridging sleeve 2112 plays a role of connecting the first housing 2111a and the second housing 2111b.

[0096] The bridging sleeve 2112 and the holding part 2111 are further provided with a limiting structure 214, the limiting structure 214 is used for limiting the relative movement of the bridging sleeve 2112 and the holding part 2111 in the axial direction of the operating handle 20.

[0097] In the embodiment, the limiting structure 214 comprises a clamping groove 2141 provided on the holding part 2111 and a clamping buckle 2142 provided on the bridging sleeve 2112 and matched with the clamping groove 2141, the arrangement of the clamping buckle 2142 and the clamping groove 2141 can ensure that the bridging sleeve 2112 can be reliably connected to the holding part 2111 and will not easily separate.

[0098] In other embodiments, the limiting structure 214 can further comprise a clamping groove provided on the bridging sleeve 2112 and a clamping buckle provided on the holding part 2111 and matched with the clamping groove.

[0099] The operation handle 20 further comprises a first bearing 216 and a second bearing 217, wherein the first bearing 216 is arranged between the inner rotating part 22 and the handle body 21 for supporting the rotation of the inner rotating part 22 relative to the handle body 21, and the second bearing 217 is arranged between the handle body 21 and the outer knob part 23 for supporting the rotation of the outer knob part 23 relative to the handle body 21. With the support of the first bearing 216, the frictional resistance of the rotation of the inner rotating part 22 relative to the handle body 21 is small, and with the support of the second bearing 217, the frictional resistance of the rotation of the outer knob part 23 relative to the handle body 21 is small.

[0100] In the embodiment, at least part of the top cover 28 and at least part of the holding part 2111 are arranged in the outer knob part 23, and the holding part 2111 further comprises a first sealing ring 218 arranged between the outer circumferential surface of the top cover 28 and the inner circumferential surface of the outer knob part 23, and a second sealing ring 219 arranged between the outer circumferential surface of the holding part 2111 and the inner circumferential surface of the outer knob part 23. The first sealing ring 218 and the second sealing ring 219 can prevent foreign matters from entering the inside of the operation handle 20 from the gap between the top cover 28 and the outer knob part 23 and the gap between the holding part 2111 and the outer knob part 23.

[0101] The ultrasonic imaging device 100 provided by the utility model, in use, comprises the following steps:

[0102] In the case that the transducer 12 is in electrical communication with the imaging host 30, the ultrasonic probe 10 is inserted into the human body, and the transducer 12 is located near the human body region to be scanned;

[0103] The outer knob part 23 is manually rotated to adjust the orientation of the transducer 12.

[0104] In the above steps, the transducer 12 is electrically connected to the connector 29 through the flexible circuit board 14 and the wire 15, and the connector 29 is electrically connected to the imaging host 30, so that the transducer 12 can be in electrical communication with the imaging host 30. Before the ultrasonic probe 10 is inserted into the human body, an endoscope is first inserted into the human body, and the ultrasonic probe 10 is inserted into the human body through the channel of the endoscope. When the ultrasonic probe 10 is inserted into the human body, the ultrasonic probe 10 extends from the end of the channel, and the extension length is 30mm-100mm.

[0105] After the ultrasonic probe 10 is located in the human body and the transducer 12 is located near the human body region, the outer knob part 23 is manually rotated to adjust the orientation of the transducer 12, so that the transducer 12 can scan the human body in the best direction, and the imaging host 30 can form the human tissue image scanned by the transducer 12.

[0106] To sum up, the ultrasonic imaging device 100 provided by the application can be used, the transducer 12 only needs to be manually driven to rotate through the operation handle 20 to find the best scanning direction, without high-speed rotation, the ultrasonic probe 10 can perform Doppler imaging, especially can observe Doppler blood flow, is convenient for doctors to perform clinical diagnosis, and can also save the cost of patients.

[0107] It should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.

[0108] The above embodiments are only used to illustrate the technical solutions of the present application and not to limit the present application, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. An ultrasonic imaging device comprising an ultrasonic probe and an operating handle, the ultrasonic probe comprising a sheath, a transducer disposed within the sheath, a torsion member at least partially located within the sheath, a connecting member connecting the torsion member and the transducer, characterized in that, The transducer comprises a plurality of array elements, the operation handle is connected to the torsion member and is used to manually drive the torsion member to twist, and the torsion member is twisted to drive the transducer to rotate through the connecting member.

2. The ultrasound imaging apparatus of claim 1, wherein, The transducer is one of a linear array transducer, a convex array transducer and a phased array transducer.

3. The ultrasound imaging apparatus of claim 1, wherein, The connecting member is provided with a notch, the notch is concavely formed from the outer periphery of the connecting member, and the transducer is arranged in the notch.

4. The ultrasound imaging apparatus of claim 1, wherein, The torsion member and the connecting member are both tubular, and the ultrasonic probe further comprises a wire penetrating into the torsion member and the connecting member, and a flexible circuit board arranged in the connecting member and electrically connected to the wire and the transducer.

5. The ultrasound imaging apparatus of claim 4, wherein, The connecting member is made of a metal material, and a plurality of cutting grooves are further arranged on the connecting member.

6. The ultrasound imaging apparatus of claim 5, wherein, The cutting grooves are not completely closed annular and are coaxially arranged on the connecting member, a plurality of the cutting grooves are arranged along the axial direction of the connecting member, the number of the cutting grooves is n, and the position of a rear cutting groove is rotated by a preset angle relative to the position of a front cutting groove in the clockwise or counterclockwise direction.

7. The ultrasound imaging apparatus of claim 4, wherein, The connecting member is a woven member and is woven by at least a polymer material and a metal material.

8. The ultrasound imaging apparatus of any one of claims 4, 5, 7, wherein, The wall thickness of the connecting member is 0.04mm-0.08mm.

9. The ultrasound imaging apparatus of claim 1, wherein, The sheath comprises a main pipe body and a sleeve, the main pipe body is provided with an open first port and a second port, the first port is located at the operation handle, the sleeve seals the second port, the main pipe body is a woven member, and the sleeve is bonded or welded to the main pipe body.

10. The ultrasound imaging apparatus of claim 1, wherein, The operation handle comprises a handle main body, an inner rotating member rotationally connected to the handle main body, and an outer knob member rotationally connected to the handle main body, the inner rotating member is used to connect the torsion member of the ultrasonic probe, the outer knob member is arranged around the inner rotating member, and the operation handle is configured such that the outer knob member can drive the inner rotating member to rotate.

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