Ultrasonic probe device for endoscopes

Abstract

The present invention relates to an ultrasonic probe device for an endoscope device that is coupled to the tip of a tube of the endoscope device and generates ultrasonic inspection information. The present invention provides an ultrasonic probe device for an endoscope device, including: a tube mounting portion mounted on the tip of a tube of the endoscope device; and an ultrasonic module coupled to the tube mounting portion and generating ultrasonic inspection information.

Description

Technical Field

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[0001] The present invention relates to an ultrasonic probe device for an endoscope device. More specifically, the present invention relates to an ultrasonic probe device for an endoscope device that is coupled to the tip of a tube of an endoscope device and generates ultrasonic inspection information.

Background Art

[0002] A general endoscopy can observe the mucosal layer of the digestive tract, but has the disadvantage that it is difficult to observe the submucosal layer and muscular layer under the mucosa of the digestive tract. In order to solve such disadvantages, endoscopic ultrasonography is utilized.

[0003] However, ultrasonic endoscope equipment is very expensive and is equipped with ultrasonic endoscopes only in medical institutions above general hospitals, and has the disadvantage of poor accessibility to medical care.

[0004] U.S. Patent No. 10363014 presents an ultrasonic assembly attached to an endoscope, but there are problems that the structure of the ultrasonic assembly is complex and the distance from the tip of the endoscope tube to the ultrasonic module is relatively long. Also, when using a needle, there is a disadvantage that ultrasonic images and optical images cannot be obtained.

Summary of the Invention

Problems to be Solved by the Invention

[0005] An object of the present invention is to provide an ultrasonic probe device for an endoscope device that is detachable from the tip of the tube of the endoscope device and has a simple structure.

Means for Solving the Problems

[0006] The present invention provides an ultrasonic probe device for an endoscope device including: a tube mounting portion mounted on the tip of a tube of the endoscope device; and an ultrasonic module coupled to the tube mounting portion and generating ultrasonic inspection information.

[0007] In one embodiment, the tube mounting portion may be configured to cover the outer portion of the end face of the tube in a manner that exposes the end face of the tube.

[0008] In one embodiment, the ultrasonic module may be provided so as to protrude forward from the end face of the tube.

[0009] Furthermore, the ultrasonic module may be formed such that the objective lens, nozzle, and optical guide provided on the end face of the tube are exposed to the front.

[0010] In one embodiment, the ultrasonic probe device for an endoscope according to the present invention may further include an insert portion provided in the tube mounting portion or the ultrasonic module and inserted into a common channel of the tube.

[0011] In one embodiment, the insert portion may be configured to close the common channel.

[0012] In one embodiment, the insert portion may be in contact with a portion of the inner circumferential surface of the common channel and may be formed to be smaller than the inner diameter of the common channel.

[0013] In one embodiment, a sleeve may be further provided which is coupled to the edge of the tube mounting portion and the outer surface of the tube, so as to fix the end of the tube mounting portion to the outer surface of the endoscope tube.

[0014] In one embodiment, the ultrasonic module may include a transducer that generates an ultrasonic signal and receives the signal reflected by an organ to generate the ultrasonic examination information, a reflector that reflects the ultrasonic signal and the reflected signal, and a motor that rotates the reflector.

[0015] In one embodiment, the internal space of the ultrasonic module may be filled with a medium for transmitting ultrasonic waves.

[0016] In one embodiment, the motor body or the drive shaft of the motor may be provided with a sealing member to seal the internal space.

[0017] In one embodiment, a partition wall is provided to divide the internal space, and the driving force of the motor can be transmitted to the reflector by magnetic force.

[0018] In one embodiment, the system may further include a lead cable connected to the ultrasonic module and extending to a common channel of the tube.

[0019] The ultrasonic probe device according to the present invention includes a main body including a tube mounting portion and a main housing formed protruding from one side of the tube mounting portion, a rotary drive unit including the motor housed in the main housing, an ultrasonic module body coupled to an open portion of the main housing, a reflector assembly including the reflector housed in the ultrasonic module body, a transducer provided on one side of the reflector assembly, and the driving force of the rotary drive unit may be transmitted to the reflector assembly by magnetic force so that the reflector assembly is rotatable.

[0020] In one embodiment, a through-hole may be formed in the bottom surface of the main housing through which wires for driving the rotary drive unit and the transducer can be pulled out.

[0021] In one embodiment, the rotary drive unit may include a motor and a drive-side magnet coupled to the drive shaft of the motor.

[0022] Furthermore, the rotational drive unit may include a flexible circuit board to which the terminals of the motor are connected and which is equipped with motor drive wires for driving the motor.

[0023] Furthermore, the terminals can be joined to the flexible substrate by soldering.

[0024] Further, the flexible substrate can be adhered to the main body of the motor by an adhesion portion.

[0025] In one embodiment, a magnetic force shielding portion may be provided between the motor and the drive-side magnet.

[0026] In one embodiment, the ultrasonic module body may include an insertion end portion coupled to the main housing.

[0027] In one embodiment, the ultrasonic module body includes a reflector assembly accommodation space for accommodating the reflector assembly, and a reflector assembly support shaft for rotatably supporting the reflector assembly may be formed on the bottom surface of the reflector assembly accommodation space.

[0028] Further, the reflector assembly may include a driven-side magnet coupled to the bottom surface of the reflector.

[0029] Further, a transducer housing for accommodating the transducer may be coupled to the upper end of the ultrasonic module body.

[0030] Further, a sealing member may be provided at a coupling portion of the transducer housing to the ultrasonic module body.

[0031] Further, the transducer includes a transducer wire, and a wire guide through which the transducer wire passes may be formed in the ultrasonic module body.

[0032] Further, the ultrasonic probe device may further include a cap coupled to the ultrasonic module body so as to cover the upper portion of the transducer housing.

Advantages of the Invention

[0033] According to the present invention, a disposable ultrasonic probe device that can be attached to and detached from the tip of an endoscope tube is provided.

[0034] The ultrasonic probe device according to the present invention has the advantage of being able to acquire ultrasonic examination information of the digestive organs from which optical images are acquired, without interfering with the acquisition of optical images by the endoscope device.

[0035] Furthermore, the ultrasonic probe device according to the present invention can utilize a common channel formed in the tube of the endoscope device to connect the cables necessary for control and communication to the outside of the endoscope device.

[0036] Furthermore, according to one embodiment of the present invention, the operational safety of the components and drive elements constituting the ultrasonic probe device is improved. [Brief explanation of the drawing]

[0037] [Figure 1] This is a perspective view showing the state in which an ultrasonic probe device according to the first embodiment of the present invention is coupled to the tip of an endoscope tube. [Figure 2] This is a rear perspective view of an ultrasonic probe device according to the first embodiment of the present invention. [Figure 3] This is a front view showing the ultrasonic probe device according to the first embodiment of the present invention coupled to the tip of an endoscope tube. [Figure 4] This drawing shows a cross-sectional view (section A-A' in Figure 2) of an ultrasonic probe device according to the first embodiment of the present invention, illustrating the first embodiment of the ultrasonic module. [Figure 5] This is a cross-sectional view showing an ultrasonic probe device according to the first embodiment of the present invention, coupled to the tip of an endoscope tube. [Figure 6] This drawing shows a cross-sectional view (section A-A' in Figure 2) of an ultrasonic probe device according to the first embodiment of the present invention, illustrating a second embodiment of the ultrasonic module. [Figure 7] Figure 6 is a diagram showing a sealing member provided in the ultrasonic module of the ultrasonic probe device shown. [Figure 8] This drawing shows a cross-sectional view (section A-A' in Figure 2) of an ultrasonic probe device according to the first embodiment of the present invention, illustrating a third embodiment of the ultrasonic module. [Figure 9] This drawing shows a cross-sectional view (section A-A' in Figure 2) of an ultrasonic probe device according to the first embodiment of the present invention, illustrating a fourth embodiment of the ultrasonic module. [Figure 10] This is a perspective view of an ultrasonic probe device according to a second embodiment of the present invention. [Figure 11] This is a cross-sectional view (section B-B' in Figure 10) of a mounting member provided in an ultrasonic probe device according to a second embodiment of the present invention. [Figure 12] This is a perspective view showing an ultrasonic probe device according to a third embodiment of the present invention coupled to the tip of an endoscope tube. [Figure 13] This is a cross-sectional view showing an ultrasonic probe device according to a third embodiment of the present invention, coupled to the tip of an endoscope tube.

[0038] [Figure 14] This is a perspective view showing an ultrasonic probe device according to a fourth embodiment of the present invention, coupled to the tip of an endoscope tube. [Figure 15] This is a cross-sectional view showing an ultrasonic probe device according to a fourth embodiment of the present invention, coupled to the tip of an endoscope tube. [Figure 16] This is a cross-sectional view showing an ultrasonic probe device according to a fifth embodiment of the present invention, coupled to the tip of an endoscope tube. [Figure 17] This is a cross-sectional view showing an ultrasonic probe device according to the sixth embodiment of the present invention, coupled to the tip of an endoscope tube. [Figure 18] This is a perspective view showing an ultrasonic probe device according to the seventh embodiment of the present invention, coupled to the tip of an endoscope tube. [Figure 19] This is a front view of an ultrasonic probe device according to the seventh embodiment of the present invention. [Figure 20] This is a cross-sectional view of an ultrasonic probe device according to a seventh embodiment of the present invention. [Figure 21]This is an exploded perspective view of an ultrasonic probe device according to the seventh embodiment of the present invention. [Figure 22] This is a top view of the main body of an ultrasonic probe device according to the seventh embodiment of the present invention. [Figure 23] This is a diagram showing the assembly process of the rotary drive unit of an ultrasonic probe device according to the seventh embodiment of the present invention. [Figure 24] This drawing shows another embodiment of the rotary drive unit of an ultrasonic probe device according to the seventh embodiment of the present invention. [Figure 25] This is a diagram showing the assembly process of the ultrasonic module of an ultrasonic probe device according to the seventh embodiment of the present invention. [Figure 26] This is a diagram showing the state in which an ultrasonic module is coupled to the main body in an ultrasonic probe device according to the seventh embodiment of the present invention. [Figure 27] This is a perspective view showing another embodiment of the ultrasonic probe device according to the seventh embodiment of the present invention. [Figure 28] This is a perspective view showing the main body and sleeve separated in another embodiment of the ultrasonic probe device according to the seventh embodiment of the present invention. [Modes for carrying out the invention]

[0039] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. First, it should be noted that when assigning reference numerals to the components in each drawing, the same reference numerals are used whenever possible for the same component, even if they are shown in other drawings. Furthermore, when describing the present invention, if it is determined that a specific description of a known configuration or function may obscure the gist of the invention, such detailed description will be omitted. Preferred embodiments of the present invention will be described below, but it goes without saying that the technical idea of ​​the present invention is not limited thereto and can be modified and implemented in various ways by those skilled in the art.

[0040] Furthermore, the configurations of the ultrasonic probe devices described in the following embodiments can be combined with each other.

[0041] Figure 1 is a perspective view showing the ultrasonic probe device according to the first embodiment of the present invention connected to the tip of an endoscope tube, and Figure 2 is a rear perspective view of the ultrasonic probe device according to the first embodiment of the present invention. Figure 3 is a front view showing the ultrasonic probe device according to the first embodiment of the present invention connected to the tip of an endoscope tube.

[0042] The ultrasonic probe device 10 according to the first embodiment of the present invention is coupled to the tip of the tube 1 of the endoscope.

[0043] The end tube 1 of the endoscope is made of a flexible material, and the end face 2 of the tube 1 has an objective lens 3 for acquiring images, a nozzle 5 for spraying air or water, an optical guide 7 for illuminating light, and a common channel 9. The common channel 9 is also called a biopsy channel or instrument channel, and is a passage through which instruments for biopsy and treatment enter and exit.

[0044] The ultrasonic probe device 10 includes a tube mounting portion 20 that is attached to the tip of the tube 1, and an ultrasonic module 30 formed to protrude forward from the tube mounting portion 20. The ultrasonic probe device 10 may also include an insert portion 32 that protrudes rearward from the ultrasonic module 30 and is inserted into the common channel 9 of the tube 1.

[0045] In one embodiment, the tube mounting portion 20 may be configured to cover the outer circumferential surface of the tube 1 and the outer portion of the end face 2 of the tube 1. The tube mounting portion 20 is configured not to obstruct the objective lens 3, nozzle 5, optical guide 7, and common channel 9 formed on the end face 2 of the tube 1 when coupled to the tube 1. The tube mounting portion 20 may include an annular ring portion 22 coupled to surround the outer circumferential surface of the tip of the tube 1, and a stepped portion 24 extended from one end of the ring portion 22 and formed to cover a portion of the outer surface of the end face 2 of the tube 1.

[0046] The ultrasonic module 30 is coupled to the tube mounting portion 20, radiates internal ultrasonic signals outward, and receives ultrasonic waves reflected by human organs. The ultrasonic module 30 may be formed integrally with the tube mounting portion 20. It is preferable that the ultrasonic module 30 is positioned so as not to obstruct the objective lens 3, nozzle 5, and optical guide 7 provided on the end face 2 of the tube 1. This allows for the acquisition of ultrasonic inspection information by the ultrasonic module 30 while simultaneously acquiring an optical image through the objective lens 3.

[0047] An insert portion 32 protruding from the rear surface of the ultrasonic module 30 is inserted into the common channel 9 of the tube 1. In one embodiment, the insert portion 32 may be configured to close the common channel 9. The insert portion 32 is provided so that a lead cable 34 is exposed. The lead cable 34 can be extended to the outside of the operating section of the endoscope device via the common channel 9. That is, the lead cable 34 can be extended to the opening on the operating section side of the tube 1 via the common channel 9. When the insert portion 32 is configured to close the common channel 9, it has the advantage that contamination of the inside of the common channel 9 can be prevented when the endoscope is used for examination. In addition, when the lead cable 34 is extended to the outside of the operating section of the endoscope device via the common channel 9, it has the advantage that the cable for the ultrasonic module does not need to be configured to be exposed on the outer surface side of the tube 1. On the other hand, in an embodiment of the present invention, the insert portion 32 may be provided coupled to the tube mounting portion 20.

[0048] Furthermore, in implementing the present invention, the insert portion 32 may be omitted, and the lead cable 34 drawn out by the ultrasonic module 30 may be connected to the outside via a common channel 9.

[0049] Figure 4 is a cross-sectional view (section A-A' in Figure 2) of an ultrasonic probe device according to the first embodiment of the present invention, showing the first embodiment of the ultrasonic module, and Figure 5 is a cross-sectional view showing the ultrasonic probe device according to the first embodiment of the present invention coupled to the tip of an endoscope tube.

[0050] The ultrasound module 30 may include a transducer 40 that generates an ultrasound signal and receives the signal reflected by an organ to generate ultrasound examination information, a reflector 38 that radiates the ultrasound signal generated by the transducer 40 to the outer surface of the ultrasound module 30 and transmits the signal reflected by the organ back to the transducer 40, and a motor 36 that rotationally drives the reflector 38. The reflector 38 can be rotated by being connected to the drive shaft 37 of the motor 36. Meanwhile, the lead cable 34 may include a motor control cable 34a for the motor 36 and a transducer cable 34b for the transducer 40.

[0051] The ultrasound module 30 is positioned almost parallel to the central axis of the tube 1, and ultrasound examination information on the inner wall of the organ can be acquired by rotating the reflector 38 along the outer circumference of the outer surface of the ultrasound module 30.

[0052] On the other hand, the internal space 42 of the ultrasonic module 30 through which the ultrasonic waves pass can be filled with a medium to facilitate the transmission of ultrasonic waves. As the medium, oil, water-oil emulsion, aqueous gel, etc., can be used.

[0053] In the embodiment shown in Figure 4, a transducer 40, a reflector 38, and a motor 36 are shown in a configuration for acquiring ultrasonic inspection information. However, in the implementation of the present invention, these can be replaced with ultrasonic probes arranged in an array.

[0054] Figure 6 is a cross-sectional view (section A-A' in Figure 2) of an ultrasonic probe device according to the first embodiment of the present invention, showing a second embodiment of the ultrasonic module, and Figure 7 is a drawing showing a sealing member provided in the ultrasonic module of the ultrasonic probe device shown in Figure 6.

[0055] Referring to Figure 6, a sealing member 43 may be provided between the outer circumferential surface of the motor 36 and the inner wall surface forming the internal space 42 of the ultrasonic module 30. The sealing member 43 prevents the ultrasonic transmission medium filled in the internal space 42 from leaking to the main body side of the motor 36. Referring to Figure 7, the sealing member 43 may consist of an annular sealing body 44 configured to surround the motor 36 and an O-ring 48 inserted into a groove 46 formed laterally on the sealing body 44.

[0056] Figure 8 is a cross-sectional view (section A-A' in Figure 2) of an ultrasonic probe device according to the first embodiment of the present invention, showing a third embodiment of the ultrasonic module.

[0057] Referring to Figure 8, the sealing member 43' can also be provided so as to surround the drive shaft 37 of the motor 36.

[0058] Figure 9 is a cross-sectional view (section A-A' in Figure 2) of an ultrasonic probe device according to the first embodiment of the present invention, showing a fourth embodiment of the ultrasonic module.

[0059] Referring to Figure 9, the internal space of the ultrasonic module 30 is partitioned by a partition wall 60, with a motor 36 provided on one side of the partition wall 60 and a reflector 38 and transducer 40 on the other side. The internal space 42 in the area where the reflector 38 and transducer 40 are located can be filled with a medium for transmitting ultrasonic waves.

[0060] A drive-side magnet 62 is provided on the drive shaft of the motor 36, and a driven-side magnet 64 is provided on the driven shaft of the reflector 38. When the drive-side magnet 62 rotates, the driven-side magnet 64 rotates due to the magnetic force, thereby enabling the rotational drive of the reflector 38.

[0061] Figure 10 is a perspective view of an ultrasonic probe device according to a second embodiment of the present invention, and Figure 11 is a cross-sectional view (B-B' section in Figure 10) of a mounting member provided in the ultrasonic probe device according to the second embodiment of the present invention.

[0062] An ultrasonic probe device 10 according to a second embodiment of the present invention is further characterized by including a cover member 50. The cover member 50 may be made of a silicone material. The cover member 50 may be provided in a form that surrounds the ring portion 22 of the tube mounting portion 20. The cover member 50 can perform the function of applying frictional force to the outer circumferential surface of the tube 1 so that the probe device 10 is stably fixed. The cover member 50 has a groove portion 54 into which the ring portion 22 is inserted, and a projection 52 may be formed on the inner surface of the cover member 50 that abuts the tube 1.

[0063] The cover member 50 may be constructed separately and attached to the ring portion 22, or it may be integrally molded to the ring portion 22 in an insert molding manner.

[0064] However, if the ring portion 22 is made of a flexible, frictional material such as silicone, it is not necessary to provide a separate cover member 50.

[0065] Figure 12 is a perspective view showing the ultrasonic probe device according to the third embodiment of the present invention connected to the tip of an endoscope tube, and Figure 13 is a cross-sectional view showing the ultrasonic probe device according to the third embodiment of the present invention connected to the tip of an endoscope tube.

[0066] The ultrasonic probe device 100 according to the third embodiment of the present invention includes a tube mounting portion 120 that contacts one side of the tip of the tube 1, an ultrasonic module 130 formed to protrude forward from the tube mounting portion 120, and an insert portion 132 formed to protrude rearward from the ultrasonic module 130 and inserted into the common channel 9 of the tube 1. The lead cable 134 is exposed to the outside in the insert portion 132. The configuration of the ultrasonic module 130 is the same as the configuration of the ultrasonic module 30 described in the first embodiment.

[0067] The tube mounting portion 120 may include a tube outer support portion 122 that contacts one side of the outer circumferential surface of the tip of the tube 1, and a tube end face support portion 124 that extends from the tube outer support portion 122 and contacts the end face 2 of the tube 1. When the insert portion 132 is inserted into the common channel 9 while the tube mounting portion 120 is supported on one side of the tip of the tube 1, the ultrasonic probe device 100 can be stably fixed to the tip of the tube 1. A cover member surrounding the tube mounting portion 120 may also be provided in the same manner as the cover member 50 shown in Figure 10.

[0068] Figure 14 is a perspective view showing the ultrasonic probe device according to the fourth embodiment of the present invention coupled to the tip of an endoscope tube, and Figure 15 is a cross-sectional view showing the ultrasonic probe device according to the fourth embodiment of the present invention coupled to the tip of an endoscope tube.

[0069] An ultrasonic probe device 200 according to a fourth embodiment of the present invention includes a tube mounting portion 220 that contacts one side of the tip of a tube 1, an ultrasonic module 230 formed to protrude forward from the tube mounting portion 220, and a sleeve 210 that supports the coupling of the tube mounting portion 220 to the tip of the tube 1.

[0070] In one embodiment, the sleeve 210 may be tightly bonded to the tube 1 and be made of a flexible material. An example of such a material is silicone. The ultrasonic probe device 200 can also be securely fixed to the tube 1 even if the tube mounting portion 220 of the ultrasonic probe device 200 is made of a more rigid plastic material than the sleeve 210.

[0071] The tube mounting portion 220 includes an annular ring portion 222 that is joined to surround the outer peripheral surface of the tip of the tube 1, and a stepped portion 224 that extends from one end of the ring portion 222 and forms a step that covers a portion of the outer surface of the end face 2 of the tube 1. The tube mounting portion 220 also has a fitting projection 226 that extends from the other end of the ring portion 222.

[0072] The sleeve 210 includes a cylindrical sleeve body 212 that is mounted on the outer circumferential surface of the tube 1, and a fitting housing portion 214 formed on one side of the sleeve body 212. The fitting projection 226 formed on the ring portion 222 of the ultrasonic probe device 200 is coupled to the fitting housing portion 214 of the sleeve 210, ensuring that the ultrasonic probe device 200 is securely coupled to the tube 1.

[0073] On the other hand, the positions of the fitting projection 226 and the fitting housing 214 may be changed so that the fitting projection is provided on one side of the sleeve body and the fitting housing is provided on the other side of the ring portion.

[0074] In the fourth embodiment shown in Figures 14 and 15, unlike the first embodiment shown in Figure 1, the insert portion 32 is not provided, and the lead cable 234 drawn out by the ultrasonic module 230 is connected to the outside via a common channel 9. However, it is of course possible to configure the ultrasonic probe device 200 according to the fourth embodiment to include the insert portion 32 in the implementation of the present invention.

[0075] Figure 16 is a cross-sectional view showing an ultrasonic probe device according to the fifth embodiment of the present invention, coupled to the tip of an endoscope tube.

[0076] The basic configuration of the ultrasonic probe device 10 according to the fifth embodiment is the same as that of the ultrasonic probe device 10 according to the first embodiment shown in Figure 1. However, the ultrasonic probe device 10 according to the fifth embodiment differs from the first embodiment in that it has an insert portion 32' that is inserted into the common channel 9 but does not close the common channel 9. There is also a difference in that the stepped portion 24 is formed to completely cover the outer part of the tip surface of the tube 1.

[0077] In one embodiment, the insert portion 32' can be in contact with a portion of the inner circumferential surface of the common channel 9.

[0078] Since the insert portion 32' does not close the common channel 9, it has the advantage of allowing measures such as supplying a liquid like water into the organ through the common channel 9.

[0079] Figure 17 is a cross-sectional view showing an ultrasonic probe device according to the sixth embodiment of the present invention, coupled to the tip of an endoscope tube.

[0080] An ultrasonic probe device 300 according to a sixth embodiment of the present invention includes a tube mounting portion 320 having a ring portion 322 and a stepped portion 324 in contact with one side of the tip of a tube 1, an ultrasonic module 330 formed to protrude forward from the tube mounting portion 320, and a sleeve 310 that supports the coupling of the tube mounting portion 320 to the tip of the tube 1. The ring portion 322 is provided with a fitting projection 326, and the sleeve 310 may include a sleeve body 312 and a fitting housing portion 314.

[0081] The tube mounting portion 320 may further be provided with an insert portion 332 that extends to the common channel 9 of the tube 1 and is coupled to a part of the inside of the common channel 9.

[0082] In the sixth embodiment, the lead cable 334 connected to the ultrasonic module 330 differs in that it extends along the outside of the tube 1 towards the control unit of the endoscope device, rather than inside the common channel 9.

[0083] Figure 18 is a perspective view showing the ultrasonic probe device according to the seventh embodiment of the present invention coupled to the tip of an endoscope tube, Figure 19 is a front view of the ultrasonic probe device according to the seventh embodiment of the present invention, and Figure 20 is a cross-sectional view of the ultrasonic probe device according to the seventh embodiment of the present invention. Furthermore, Figure 21 is an exploded perspective view of the ultrasonic probe device according to the seventh embodiment of the present invention, and Figure 22 is a top view of the main body of the ultrasonic probe device according to the seventh embodiment of the present invention.

[0084] An ultrasonic probe device 400 according to a seventh embodiment of the present invention includes a main body 410 including a tube mounting portion 412 attached to the tip of a tube 1, and an ultrasonic module coupled to the main body 410. The ultrasonic module may include a rotary drive unit 430, an ultrasonic module body 440, a reflector assembly 450, a transducer housing 460, and a transducer 470 as components built into or coupled to the main body 410. A cap 480 coupled to the upper end of the ultrasonic module body 440 may also be provided.

[0085] The main body 410 includes a tube attachment portion 412 that is attached to the tip of the tube 1, and a main housing 420 that is formed to protrude substantially forward (approximately in the direction of the front of the endoscope tube 1) from one side of the tube attachment portion 412.

[0086] The tube mounting portion 412 is connected to the end of the tube 1 and may be formed in a cylindrical shape corresponding to the outer shape of the tube 1. Preferably, when the tube mounting portion 412 is connected to the tube 1, it does not obstruct at least one of the objective lens 3, nozzle 5, or optical guide 7 formed on the end face 2 of the tube 1. A locking projection 414 is formed at the end of the tube mounting portion 412 that corresponds to the tip of the tube 1, so that the tube mounting portion 412 can be stably connected to the tip of the tube 1.

[0087] The main housing 420 is coupled to one side of the tube mounting portion 412 and may be formed to have an outer diameter smaller than the outer diameter of the main housing 420. This prevents the main housing 420 from obstructing structures for the endoscope, such as the objective lens 3, nozzle 5, and optical guide 7, which are formed on the end face 2 of the tube 1.

[0088] In one embodiment, the main housing 420 may be configured as a cylindrical shape including a drive unit housing space 425 capable of accommodating a rotary drive unit 430. On the other hand, the lower part of the main housing 420 may be provided with an insert portion 422 that protrudes downward. The insert portion 422 can be inserted into a hole formed in the endoscope tube 1, for example, a common channel 9. The ultrasonic probe device 400 can be stably coupled to the tip of the tube 1 by coupling a tube mounting portion 412 to the outer peripheral surface of the tip of the tube 1 and inserting the insert portion 422 into a hole such as a common channel 9 formed in the tube 1.

[0089] An ultrasonic module coupling portion 424 may be formed on the upper open end side of the main housing 420.

[0090] The rotary drive unit 430 is connected to a motor 432 and a drive-side magnet 434, which is a permanent magnet that rotates when coupled to the drive shaft 433 of the motor 432. In one embodiment, the drive-side magnet 434 is configured as a disc shape having a predetermined thickness, and the drive-side magnet 434 may be mounted on a magnet tray 435 and coupled to the drive shaft 433 of the motor 432.

[0091] In one embodiment, a flexible substrate 436 may be coupled to the motor 432, which is connected to a terminal 431 through which power or electrical signals for driving the motor 432 are transmitted. Motor drive wires 439 connected to the flexible substrate 436 are led out to the outside of the ultrasonic probe device 400 via a lead cable 490.

[0092] Referring to Figure 22, a through-hole 428 is formed in the bottom surface of the main housing 420, and the lead cable 490 can be led out to the bottom of the main housing 420 through the through-hole 428. Although the lead cable 490 is given a separate reference numeral in the drawing, it is of course possible that the lead cable 490 is an extension of the motor drive wire 439.

[0093] The rotary drive unit 430 is housed in the drive unit housing space 425 of the main housing 420, and the lower end of the ultrasonic module body 440 is connected to the ultrasonic module coupling portion 424 of the main housing 420.

[0094] The ultrasonic module body 440 forms a reflector assembly housing space 442 and may be configured in a substantially cylindrical shape with a closed lower end and an open upper end. An insertion end 444 is formed at the lower end of the ultrasonic module body 440, which is connected to the ultrasonic module coupling portion 424 of the main housing 420. The ultrasonic module body 440 is made of a material that allows ultrasonic waves to pass through.

[0095] Referring to Figure 20, a recess 445 is formed in the insertion end 444, and a protrusion 426 is formed in the ultrasonic module coupling portion 424, so that the ultrasonic module body 440 cannot be easily separated while coupled to the main housing 420. Of course, the recess 445 and protrusion 426 can also be replaced with the ultrasonic module coupling portion 424 and the insertion end 444. On the other hand, the inner space 447 of the insertion end 444 can be used as a space for housing the drive-side magnet 434.

[0096] A step 443 may be provided at the inner upper end of the reflector assembly housing space 442, and the step 443 functions to support the lower peripheral edge of the mounting ring 464 of the transducer housing 460.

[0097] The ultrasonic module body 440 may have a wire guide 446 formed along its length through which the transducer wire 472 passes. Also, as shown in Figure 21, a reflector assembly support shaft 449 may be formed protruding from the bottom of the reflector assembly housing space 442 of the ultrasonic module body 440.

[0098] The reflector assembly 450 is housed in the reflector assembly housing space 442 of the ultrasonic module body 440, and the reflector assembly 450 is rotatably supported by the reflector assembly support shaft 449.

[0099] The reflector assembly 450 includes a reflector 452 having an inclined surface that reflects ultrasonic waves generated by the transducer 470 toward the ultrasonic module body 440 and reflects the ultrasonic waves reflected externally toward the transducer 470, and a driven magnet 454 coupled to the bottom surface of the reflector 452. A support shaft insertion groove 456 is formed on the bottom surface of the reflector assembly 450 into which the reflector assembly support shaft 449 is inserted.

[0100] The reflector assembly housing space 442 of the ultrasonic module body 440, which houses the reflector assembly 450, can be filled with a medium for transmitting ultrasonic waves. When an ultrasonic transmission medium is filled, directly coupling the drive shaft 433 of the motor 432 to the reflector assembly 450 can make sealing to prevent leakage of the ultrasonic transmission medium difficult.

[0101] To solve this problem, the present invention spatially separates the motor 432 and the reflector assembly 450, and configures the drive-side magnet 434, which is coupled to the drive shaft 433 of the motor 432, and the driven-side magnet 454, which is provided on the bottom surface of the reflector assembly 450, to be connected by magnetic force. As a result, when the drive-side magnet 434 rotates, the driven-side magnet 454 rotates due to the magnetic force, thereby enabling the rotational drive of the reflector 452.

[0102] A transducer housing 460 having a transducer housing portion 462 that houses a transducer 470 is coupled to the upper end of the ultrasonic module body 440. A mounting ring 464 is provided on the outer circumferential surface of the transducer housing 460, and a sealing member 466 is provided at the lower end of the mounting ring 464. Referring to Figure 20, the transducer housing 460 is coupled to the ultrasonic module body 440 such that the lower end of the mounting ring 464 overlaps the step 443 of the ultrasonic module body 440, and airtightness is maintained by the sealing member 466 to prevent leakage of the ultrasonic transmission medium.

[0103] A transducer 470 is housed in a transducer housing 460, and a cap 480 is attached to its top. A transducer wire 472 connected to the transducer 470 can be led out of the transducer housing 460 and through a through hole 428 formed in the main housing 420 via a wire guide 446.

[0104] The lead cable 490 may be an integrated unit of the motor drive wire 439 and the transducer wire 472, or in some cases, the motor drive wire 439 and the transducer wire 472 may be extended and tied together.

[0105] Figure 23 is a diagram showing the assembly process of the rotary drive unit of an ultrasonic probe device according to the seventh embodiment of the present invention.

[0106] Referring to Figure 23(a), the motor 432 is equipped with a drive shaft 433, and the motor 432 is equipped with terminals 431 to which power or electrical signals for driving the motor 432 are transmitted.

[0107] Referring to Figure 23(b), the terminal connection portion 437 of the flexible substrate 436 is connected to the terminal 431 by soldering or other methods. By forming the terminal 431 on the motor 432 and connecting the terminal connection portion 437 of the flexible substrate 436 to the terminal 431, the possibility of wire breakage and other problems is minimized.

[0108] Referring to Figure 23(c), an adhesive portion 438 is provided on the inner surface of the flexible substrate 436, and the adhesive portion 438 is bonded to the body of the motor 432. A motor drive wire 439, electrically connected to terminal 431, is provided on the flexible substrate 436.

[0109] Referring to Figure 23(d), the drive-side magnet 434 is connected to the drive shaft 433 of the motor 432 to which the flexible substrate 436 is attached.

[0110] Figure 24 is a drawing showing another embodiment of the rotary drive unit of an ultrasonic probe device according to the seventh embodiment of the present invention.

[0111] The drive-side magnet 434, coupled to the motor 432 which forms the rotational drive unit 430, drives the driven-side magnet 454 of the reflector assembly 450 by magnetic force. The magnetic field generated by the drive-side magnet 434 and the driven-side magnet 454 may affect the magnetic force used to drive the motor 432. To prevent this, a magnetic shielding portion 492 may be provided at the upper end of the motor 432, i.e., below the drive-side magnet 434. In one embodiment, the magnetic shielding portion 492 may be made of carbon steel such as SM45C.

[0112] Figure 25 is a diagram showing the assembly process of the ultrasonic module of an ultrasonic probe device according to the seventh embodiment of the present invention.

[0113] Referring to Figure 25(a), the reflector assembly 450 is connected to the reflector assembly housing space 442 of the ultrasonic module body 440.

[0114] Referring to Figure 25(b), the transducer housing 460 is connected to the upper end of the ultrasonic module body 440 to which the reflector assembly 450 is attached. The transducer housing 460 may be connected to the upper end of the ultrasonic module body 440 with the reflector assembly housing space 442 of the ultrasonic module body 440 filled with the ultrasonic transmission medium, or with the ultrasonic module body 440 immersed in a separate container filled with the ultrasonic transmission medium. In this case, it is preferable that the internal space of the ultrasonic module body 440 is filled with the ultrasonic transmission medium without any air bubbles.

[0115] Referring to Figure 25(c), the transducer 470 is inserted into the transducer housing 460, and the transducer wire 472 is pulled out through the wire exit groove 468 formed at the upper end of the transducer housing 460 and passed through the wire guide 446.

[0116] Referring to Figure 25(d), the cap 480 is fitted to the upper opening of the ultrasonic module body 440. The cap 480 may be provided to cover the upper opening of the ultrasonic module body 440 and the top of the wire guide 446.

[0117] Figure 26 is a diagram showing the state in which an ultrasonic module is coupled to the main body in an ultrasonic probe device according to the seventh embodiment of the present invention.

[0118] With the rotary drive unit 430 coupled to the main housing 420 of the main body 410, the ultrasonic module, including the ultrasonic module body 440, is coupled to the upper end of the main housing 420. The transducer wire 472 can be pulled out through a through hole 428 formed in the bottom surface of the main housing 420.

[0119] The ultrasonic probe device 400 according to the present invention can be coupled to the tip of a tube 1 for an endoscope to acquire ultrasonic images.

[0120] The ultrasonic signal generated by the transducer 470 in the ultrasonic module is radiated outward by a rotating reflector 452, and the ultrasonic signal reflected by human organs is reflected again by the reflector 452 and transmitted back to the transducer 470.

[0121] The motor 432 can be driven and the ultrasonic signal generation and reception in the transducer 470 can be controlled via a lead cable 490 that extends outside the human body along tube 1.

[0122] According to the present invention, it is possible to perform an ultrasonic examination using an ultrasonic probe device 400, and to acquire an optical image through an objective lens 3 provided on the end face 2 of the tube 1.

[0123] Figure 27 is a perspective view showing another embodiment of the ultrasonic probe device according to the seventh embodiment of the present invention, and Figure 28 is a perspective view showing the main body and sleeve separated in another embodiment of the ultrasonic probe device according to the seventh embodiment of the present invention.

[0124] Referring to Figures 27 and 28, a sleeve 500 may be further provided to securely fix the tube mounting portion 412 of the main body 410 to the endoscope tube 1. The sleeve 500 may be made of an elastic material such as silicone. In one embodiment, a detachment prevention projection 106 is formed on the lower end of the tube mounting portion 412, an overlapping portion 502 is formed on the upper side of the sleeve 500 that surrounds the tube mounting portion 412 from the outside, and a detachment prevention groove 504 is formed on the inner circumferential surface of the overlapping portion 502 in which the detachment prevention projection 506 is engaged.

[0125] The configurations of the ultrasonic probe devices according to the first to seventh embodiments described above may be combined with each other, so that the ultrasonic probe device can be configured to meet the implementation conditions in carrying out the present invention.

[0126] The above description is merely illustrative of the technical idea of ​​the present invention, and a person with ordinary skill in the art to which the present invention pertains should be able to make various modifications, changes, and substitutions without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed herein and the accompanying drawings are for illustrative purposes only, not to limit the technical idea of ​​the present invention, and the scope of the technical idea of ​​the present invention is not limited by such embodiments and accompanying drawings. The scope of protection of the present invention should be interpreted by the claims, and all technical ideas within an equivalent scope should be interpreted as being included within the scope of the rights of the present invention.

Claims

1. The main body includes a tube mounting portion that is attached to the tip of the tube, and a main housing formed protruding from one side of the tube mounting portion. The main housing has a drive unit housing space that can accommodate the rotary drive unit. The rotary drive unit includes a motor and a drive-side magnet that rotates coupled to the drive shaft of the motor, and the rotary drive unit is housed in the drive unit housing space. An ultrasonic module body is connected to the upper open portion of the main housing. The ultrasonic module body has a reflector assembly housing space for housing a reflector assembly, The reflector assembly includes a reflector and a driven magnet coupled to the bottom surface of the reflector. A transducer is provided on one side of the reflector assembly. The motor and the reflector assembly are positioned spaced apart from each other, the driving magnet and the driven magnet are coupled by magnetic force, and the rotation of the driving magnet causes the driven magnet to rotate, thereby allowing the reflector assembly to rotate. An ultrasonic probe device characterized by the following features.

2. A through-hole is formed in the bottom surface of the main housing, through which wires for driving the rotary drive unit and the transducer are drawn out. The ultrasonic probe device according to claim 1, characterized in that

3. The rotational drive unit includes a circuit board to which the terminals of the motor are connected and which is equipped with motor drive wires for driving the motor. The ultrasonic probe device according to claim 1, characterized in that

4. The substrate is bonded to the motor body by an adhesive portion. The ultrasonic probe device according to claim 3, characterized in that

5. A magnetic shielding section is provided between the motor and the drive-side magnet. The ultrasonic probe device according to claim 1, characterized in that

6. The ultrasonic module body includes an insertion end that is coupled to the main housing. The ultrasonic probe device according to claim 1, characterized in that

7. The ultrasonic module body has a reflector assembly support shaft formed at the bottom of the reflector assembly housing space, which rotatably supports the reflector assembly. The ultrasonic probe device according to claim 1, characterized in that

8. A transducer housing that accommodates the transducer is connected to the upper end of the ultrasonic module body. The ultrasonic probe device according to claim 1, characterized in that

9. The transducer includes a transducer wire, and the ultrasonic module body has a wire guide formed through which the transducer wire passes. The ultrasonic probe device according to claim 8, characterized in that

10. The transducer housing further includes a cap that is coupled to the ultrasonic module body so as to cover the upper part of the transducer housing. The ultrasonic probe device according to claim 8, characterized in that

11. The main body is configured so as not to obstruct the objective lens formed on the end face of the tube. The ultrasonic probe device according to claim 1, characterized in that

12. The main body includes an insert portion that is inserted into a hole formed on the end face of the tube and supports the connection of the main body to the tube. The ultrasonic probe device according to feature 11.

13. The terminals of the motor are soldered to the circuit board. The ultrasonic probe device according to feature 3.

14. The tube mounting portion further includes a cylindrical sleeve that is coupled to the edge of the end of the tube mounting portion and the outer surface of the tube, and fixes the end of the tube mounting portion to the outer surface of the tube. The ultrasonic probe device according to feature 1.

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