Steering structure of laparoscopic B-ultrasound probe

Abstract

The present invention provides a steering structure of a laparoscopic B-ultrasound probe, comprising: a probe support, wherein the probe is provided inside the probe support; a steering joint is arranged at the rear end of the probe support; a sleeve is connected to the steering joint by a rotating shaft; a housing is connected to the sleeve; a toggle spanner comprises a spanner handle and a spanner drive block connected to the spanner handle, and the spanner handle is movably connected to the housing through a mounting shaft; a ratchet structure is arranged on the top of the spanner drive block; a ratchet is installed on the housing through a torsion spring, and the ratchet is inserted into the ratchet structure; a transmission rod is connected to the steering joint, and the rear end of the transmission rod is connected to the spanner drive block; a spring is arranged inside the housing, and the front end of the spring is connected to the spanner drive block, and the rear end of the spring is connected to the housing. The steering structure of the laparoscopic B-ultrasound probe of the present invention is flexible in operation, and is convenient for adjusting the angle of the B-ultrasound probe in the human body at will, so as to align with the lesion and conduct a comprehensive exploration of the internal environment.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, and in particular to a steering structure of a laparoscopic B-ultrasound probe. Background Art

[0002] Laparoscopic minimally invasive abdominal surgery has become a mainstream surgery, but the localization of lesions, the establishment of lymph node metastasis, the location of distant metastases, and the blood supply guarantee during intestinal resection and reconstruction are far inferior to the judgment of the surgeon's hand touch during open surgery. Therefore, the development of portable ultrasound probes for laparoscopic surgery, real-time acquisition of lesion location and metastasis range, establishment of surgical radical cure range, and judgment of good blood supply after intestinal reconstruction are of great clinical value. Existing ultrasound probes cannot rotate. How to design a structure that allows the probe of ultrasound endoscope to rotate is a problem that technicians in this field need to solve. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a steering structure of a laparoscopic B-ultrasound probe to solve the above-mentioned problems existing in the prior art.

[0004] To achieve the above-mentioned purpose and other related purposes, the present invention provides a steering structure of a laparoscopic B-ultrasound probe, comprising:

[0005] A probe support, wherein a B-ultrasound probe is arranged inside the probe support;

[0006] A steering joint, arranged at the rear end of the probe support;

[0007] A sleeve, the front end of which is connected to the steering joint via a rotating shaft, and the steering joint can rotate relative to the sleeve;

[0008] A shell, the front end of which is connected to the rear end of the sleeve;

[0009] A toggle wrench, the toggle wrench comprising a wrench handle and a wrench drive block connected to the upper end of the wrench handle, the wrench handle being movably connected to the housing via a mounting shaft; a ratchet structure is provided on the top of the wrench drive block;

[0010] A pawl, the pawl being mounted on the housing through a torsion spring and the pawl being inserted into the ratchet structure;

[0011] A transmission rod, the front end of which is connected to the steering joint, the rear end of which passes through the sleeve, and the rear end of which is connected to the wrench drive block;

[0012] A spring is arranged inside the shell, the front end of the spring is connected to the wrench driving block, and the rear end of the spring is connected to the shell.

[0013] Preferably, a protrusion is provided at the front end of the sleeve, and a connecting hole is provided on the protrusion, and the rotating shaft is inserted into the connecting hole; the rotating shaft can rotate in the connecting hole.

[0014] Preferably, the ratchet structure comprises a plurality of ratchet parts arranged in sequence; when the steering structure is in an initial state, the ratchet pawl is inserted between the two ratchet parts located in the front.

[0015] Preferably, the axial direction of the transmission rod is parallel to the front-rear direction of the steering structure.

[0016] Preferably, the axial direction of the spring is parallel to the front-rear direction of the steering structure.

[0017] As described above, the steering structure of the laparoscopic B-ultrasound probe of the present invention has the following beneficial effects:

[0018] When the steering structure of the laparoscopic B-ultrasound probe of the present invention is in an initial state, the pawl is in an activated state, that is, the pawl is inserted into the ratchet structure, and the toggle wrench cannot rotate clockwise, thereby ensuring that the probe support will not rotate due to external force; at this time, the toggle wrench can rotate counterclockwise around the installation axis; after the toggle wrench rotates counterclockwise around the installation axis, the pawl moves out of the ratchet structure, and the toggle wrench drives the transmission rod connected to it to move forward, and the transmission rod drives the steering joint to rotate relative to the sleeve, thereby realizing the directional rotation of the probe support; the steering structure of the laparoscopic B-ultrasound probe of the present invention is flexible in operation, and it is convenient to adjust the angle of the B-ultrasound probe at will in the human body so as to aim at the lesion and conduct a comprehensive exploration of the internal environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Shown is a side structural schematic diagram of the steering structure of the laparoscopic B-ultrasound probe of this embodiment.

[0020] Figure 2 Display as Figure 1 Schematic diagram of the enlarged structure at A.

[0021] Figure 3 It is a schematic diagram of the side structure of the lever in the housing when the pawl of the steering structure of the laparoscopic B-ultrasound probe of this embodiment is in an activated state.

[0022] Figure 4 It is a schematic structural diagram of the connection between the sleeve and the steering joint when the ratchet of the steering structure of the laparoscopic B-ultrasound probe of this embodiment is in an activated state.

[0023] Figure 5 It is a schematic diagram of the side structure of the lever in the housing when the ratchet of the steering structure of the laparoscopic B-ultrasound probe of this embodiment is in a failed state.

[0024] Figure 6 It is a schematic structural diagram of the connection between the sleeve and the steering joint when the ratchet of the steering structure of the laparoscopic B-ultrasound probe of this embodiment is in a failed state.

[0025] Description of Figure Numbers

[0026] 100 Probe holder

[0027] 200 Steering joint

[0028] 300 Casing

[0029] 310 Raised parts

[0030] 311 connection hole

[0031] 400 Shaft

[0032] 500 Shell

[0033] 600 Toggle Wrench

[0034] 610 Wrench handle

[0035] 620 Wrench drive block

[0036] 630 Mounting shaft

[0037] 710 Pawl

[0038] 720 Torsion Spring

[0039] 730 Ratchet Structure

[0040] 731 Ratchet

[0041] 800 Transmission rod

[0042] 900 Spring DETAILED DESCRIPTION

[0043] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0044] Please refer to the attached drawings. It should be noted that the structures, proportions, sizes, etc. illustrated in the attached drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0045] like Figures 1 to 6 As shown, the steering structure of the laparoscopic B-ultrasound probe of this embodiment includes:

[0046] A probe support 100, wherein a B-ultrasound probe is arranged inside the probe support 100;

[0047] The steering joint 200 is arranged at the rear end of the probe support 100;

[0048] A sleeve 300, the front end of which is connected to the steering joint 200 via a rotating shaft 400, and the steering joint 200 can rotate relative to the sleeve 300;

[0049] A housing 500, wherein the front end of the housing 500 is connected to the rear end of the sleeve 300;

[0050] The toggle wrench 600 includes a wrench handle 610 and a wrench drive block 620 connected to the upper end of the wrench handle 610. The wrench handle 610 is movably connected to the housing 500 through a mounting shaft 630. A ratchet structure 730 is provided on the top of the wrench drive block 620. The wrench handle 610 can rotate around the mounting shaft 630.

[0051] A ratchet 710 , the ratchet 710 is mounted on the housing 500 via a torsion spring 720 , and the ratchet 710 is inserted into a ratchet structure 730 ;

[0052] A transmission rod 800, the front end of which is connected to the steering joint 200, the rear end of which passes through the sleeve 300, and the rear end of which is connected to the wrench driving block 620;

[0053] The spring 900 is disposed inside the housing 500 , the front end of the spring 900 is connected to the wrench driving block 620 , and the rear end of the spring 900 is connected to the housing 500 .

[0054] When the steering structure of the laparoscopic B-ultrasound probe of the present invention is in the initial state, the pawl 710 is in the activated state, that is, the pawl 710 is inserted into the ratchet structure 730, and the toggle wrench 600 cannot rotate clockwise, thereby ensuring that the probe support 100 will not rotate due to external force; at this time, the toggle wrench 600 can rotate counterclockwise around the installation shaft 630; after the toggle wrench 600 rotates counterclockwise around the installation shaft 630, the spring 900 is stretched, the pawl 710 moves out of the ratchet structure 730, the toggle wrench 600 drives the transmission rod 800 connected thereto to move forward, and the transmission rod 800 drives the steering joint 200 to rotate relative to the sleeve 300, thereby realizing the directional rotation of the probe support;

[0055] When the toggle wrench 600 is rotated counterclockwise to the extreme position, the pawl 710 is in a failed state, and the toggle wrench 600 is rotated clockwise to reset under the pull of the spring 900. At the same time, the transmission rod 800 moves backward, pulling the steering joint 200 to rotate in the opposite direction, thereby causing the probe support 100 to rotate in the opposite direction, thereby achieving the position reset of the probe support 100.

[0056] The steering structure of the laparoscopic B-ultrasound probe of the present invention is flexible in operation and convenient for adjusting the angle of the B-ultrasound probe in the human body at will so as to aim at the lesion and conduct a comprehensive exploration of the internal environment.

[0057] The front end of the sleeve 300 is provided with a protruding piece 310, and the protruding piece 310 is provided with a connecting hole 311, and the rotating shaft 400 is inserted into the connecting hole 311; the rotating shaft 400 can rotate in the connecting hole 311. The transmission rod 800 drives the steering joint 200, and the steering joint 200 drives the rotating shaft 400, so that the rotating shaft 400 rotates in the connecting hole 311. This structure enables the steering joint 200 to rotate stably.

[0058] In this embodiment, there are two protrusions 310, which are arranged opposite to each other. Each protrusion 310 is provided with a connecting hole 311. There are two rotating shafts 400, which correspond to the two protrusions 310 one by one.

[0059] The size of the outer peripheral surface of the rear end of the steering joint 200 gradually decreases along the direction approaching the sleeve 300. This structure ensures that the steering joint 200 will not contact the sleeve 300 when rotating.

[0060] The ratchet structure 730 includes a plurality of ratchet parts 731 arranged in sequence; when the steering structure is in the initial state, the ratchet 710 is inserted between the two ratchet parts 731 at the front. This structure enables the steering joint 200 to have a larger rotation angle. In this embodiment, the rotation angle of the steering joint 200 is 60 degrees.

[0061] The axial direction of the transmission rod 800 is parallel to the front-to-back direction of the steering structure. The axial direction of the spring 900 is parallel to the front-to-back direction of the steering structure, which makes the steering structure more compact and easier to control. The axial direction of the sleeve 300 is parallel to the front-to-back direction of the steering structure.

[0062] The steering structure of the present invention is different from the ultrasonic endoscopes currently on the market. The steering structure of the present invention combines the existing ultrasonic endoscope with the laparoscopic surgical instrument, which can directly enter the human body environment, comprehensively explore the body tissues and find lesions in minimally invasive surgery. At the same time, the B-ultrasound probe uses ultrasound for real-time scanning, which can obtain the histological characteristics of the hierarchical structure of the gastrointestinal tract and the ultrasonic images of the surrounding adjacent organs, thereby further improving the diagnostic level of endoscopy and ultrasound.

[0063] In summary, the present invention effectively overcomes various shortcomings of the prior art and has high industrial utilization value.

[0064] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A steering structure for a laparoscopic B-ultrasound probe, characterized in that: include: A probe support (100), wherein a B-ultrasound probe is arranged inside the probe support (100); A steering joint (200) is arranged at the rear end of the probe support (100); A sleeve (300), wherein the front end of the sleeve (300) is connected to the steering joint (200) via a rotating shaft (400), and the steering joint (200) can rotate relative to the sleeve (300); A housing (500), the front end of the housing (500) being connected to the rear end of the sleeve (300); A toggle wrench (600), the toggle wrench (600) comprising a wrench handle (610) and a wrench drive block (620) connected to the upper end of the wrench handle (610), the wrench handle (610) being movably connected to the housing (500) via a mounting shaft (630); a ratchet structure (730) is provided on the top of the wrench drive block (620); A ratchet pawl (710), wherein the ratchet pawl (710) is mounted on the housing (500) via a torsion spring (720), and the ratchet pawl (710) is inserted into the ratchet structure (730); A transmission rod (800), the front end of which is connected to the steering joint (200), the rear end of which passes through the sleeve (300), and the rear end of which is connected to the wrench drive block (620); and a spring (900), which is arranged inside the housing (500), the front end of which is connected to the wrench drive block (620), and the rear end of which is connected to the housing (500).

2. The steering structure of the laparoscopic B-ultrasound probe according to claim 1, characterized in that: The front end of the sleeve (300) is provided with a protruding piece (310), and the protruding piece (310) is provided with a connecting hole (311), and the rotating shaft (400) is inserted into the connecting hole (311); the rotating shaft (400) can rotate in the connecting hole (311).

3. The steering structure of the laparoscopic B-ultrasound probe according to claim 1, characterized in that: The ratchet structure (730) comprises a plurality of ratchet parts (731) arranged in sequence; when the steering structure is in an initial state, the ratchet pawl (710) is inserted between the two ratchet parts (731) located at the front.

4. The steering structure of the laparoscopic B-ultrasound probe according to claim 1, characterized in that: The axial direction of the transmission rod (800) is parallel to the front-rear direction of the steering structure.

5. The steering structure of the laparoscopic B-ultrasound probe according to claim 1, characterized in that: The axial direction of the spring (900) is parallel to the front-rear direction of the steering structure.

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