Universal ultrasonic intervention guiding device for convex array and linear array ultrasonic probes

Abstract

The invention discloses a universal ultrasonic intervention guiding device for convex array and linear array ultrasonic probes, and belongs to the technical field of medical instruments. Comprising an elastic binding belt, a binding mechanism used for tightening the elastic binding belt, and a guiding mechanism used for guiding and adjusting the puncture angle of a puncture needle. The guide mechanism comprises a mounting block connected to the elastic binding belt, a guide block slidably connected to the mounting block and an adjusting rod in threaded connection to the mounting block in the sliding direction of the guide block, and the end of the adjusting rod is rotatably connected to the guide block; the guide block is rotationally connected with a first perforating ball, the mounting block is rotationally connected with a second perforating ball, the puncture needle can penetrate through a through hole in the first perforating ball and a through hole in the second perforating ball, and an elastic cushion layer capable of covering the periphery of the puncture needle is arranged on the inner wall of each through hole. The universal ultrasonic intervention guiding device for the convex array ultrasonic probe and the linear array ultrasonic probe solves the problems that an existing guiding frame is poor in adaptability, insufficient in stability and limited in puncture angle.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and particularly relates to a universal ultrasonic interventional guiding device for convex array and linear array ultrasonic probes. Background Art

[0002] At present, with the rapid development of clinical ultrasonic-guided intervention diagnosis and treatment, abdominal convex array probes and high-frequency linear array probes are key tools. The guiding frame can cooperate with the ultrasonic probe and accurately guide the puncture needle to the target position under the guidance of real-time ultrasonic images.

[0003] However, the guiding frame used in conjunction with it faces the problem of low popularity rate. The main reason is that the adaptability of the existing guiding frame is poor and it cannot be widely adapted to different models of ultrasonic probes, which greatly limits the flexible clinical application. At the same time, the stability is also slightly insufficient. The puncture needle fixing structure on the existing guiding frame mostly has a single model aperture and the aperture is generally large, resulting in the puncture needle being prone to deviation or jitter, affecting the puncture accuracy. And when the puncture needle on the existing guiding frame is in use, it is difficult to adapt to special situation requirements due to the fixed angle of the puncture needle. Based on the above defects, clinicians mostly use manual guidance, which not only increases the learning time, but also improves the guiding difficulty and reduces the efficiency and accuracy of ultrasonic interventional operations. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a universal ultrasonic interventional guiding device for convex array and linear array ultrasonic probes, which solves the problems of poor adaptability, insufficient stability and limited puncture angle of the existing guiding frame.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a universal ultrasonic interventional guiding device for convex array and linear array ultrasonic probes, including an elastic tightening belt, a tightening mechanism for tightening the elastic tightening belt, and a guiding mechanism for guiding and adjusting the puncture angle of the puncture needle; The guiding mechanism includes a mounting block connected to the elastic tightening belt, a guiding block slidably connected to the mounting block, and an adjusting rod threadedly connected to the mounting block along the sliding direction of the guiding block, and the end of the adjusting rod is rotatably connected to the guiding block; Wherein, a first perforated ball is rotatably connected to the guiding block, a second perforated ball is rotatably connected to the mounting block, the puncture needle can pass through the through holes on the first perforated ball and the second perforated ball, and an elastic cushion layer capable of covering the outer periphery of the puncture needle is provided on the inner wall of the through hole.

[0006] Optionally, the tightening mechanism includes a tightening box with a cavity inside, and a tightening port communicating with the cavity is provided on the tightening box; Wherein, two winding shafts respectively rotationally connected to the winding box are arranged in the cavity, and both ends of the elastic winding belt can pass through the winding opening and be respectively connected to the two winding shafts; A first winding knob capable of meshing and driving with the two winding shafts is movably inserted into the winding box from outside to inside, and when one end of the first winding knob outside the winding box fits on the surface of the winding box, a first bevel gear portion arranged on the first winding knob can be in clamping fit with a second bevel gear portion arranged on the surface of the winding box.

[0007] Optionally, two mutually parallel racks are movably inserted into the winding box, one end of each rack is connected with a clamping plate capable of being placed in the inner cavity, and a second winding knob capable of meshing and driving with the two racks is movably inserted into the winding box from outside to inside. When one end of the second winding knob outside the winding box fits on the surface of the winding box, a third bevel gear portion arranged on the second winding knob can be in clamping fit with a fourth bevel gear portion arranged on the surface of the winding box; And when the second winding knob rotates, the two clamping plates can synchronously move towards the elastic winding belt respectively connected to the two winding shafts.

[0008] Optionally, a section of the rack connected to the clamping plate is C-shaped, and this section of the rack is placed outside the winding box.

[0009] Optionally, the elastic winding belt is flat.

[0010] Optionally, a closed-loop structure can be formed by surrounding between the elastic winding belt and the winding box, and a plurality of silica gel columns are arranged on the inner side surface of the elastic winding belt.

[0011] Optionally, the winding box includes a winding base box and a cover detachably connected to the winding base box, both ends of the winding shaft are respectively rotationally connected to the cover and the winding base box, and the first winding knob is movably inserted through the cover.

[0012] Optionally, a knob portion is arranged at one end of the adjusting rod outside the mounting block, and anti-slip patterns are arranged on the surface of the knob portion.

[0013] Compared with the prior art, the present invention achieves the following beneficial effects: through the coordinated design of the constricting mechanism and the elastic constricting band, the length of the elastic constricting band extending from the constricting disk can be adjusted to accommodate ultrasound probes of different models and sizes. Furthermore, by rotating the adjustment lever to precisely adjust the position of the guide block, combined with the use of the first and second perforated balls, the inclination angle of the puncture needle can be flexibly adjusted, resolving the issue of limited puncture angles. Furthermore, by providing an elastic cushioning layer on the first and second perforated balls, the puncture needle position can be maintained while adapting to puncture needles of varying apertures, effectively increasing the flexibility and versatility of the guide device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings and examples.

[0015] Figure 1 2. It is a structural diagram of a universal ultrasonic interventional guidance device for convex array and linear array ultrasonic probes in a preferred embodiment of the present invention; Figure 2 2 is a schematic cross-sectional view of a universal ultrasonic interventional guidance device for convex array and linear array ultrasonic probes in a preferred embodiment of the present invention; Figure 3 It is a structural schematic diagram of the guide mechanism in a preferred embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the interior of the tightening mechanism and the elastic tightening belt in a preferred embodiment of the present invention; Figure 5 In the preferred embodiment of the present invention Figure 4 A schematic diagram of the local enlarged structure at point B; Figure 6 In the preferred embodiment of the present invention Figure 4 A schematic diagram of the local enlarged structure at C; Among them, 1. elastic converging band; 101. silicone column; 2. puncture needle; 3. mounting block; 301. second perforated ball; 4. guide block; 401. first perforated ball; 5. adjusting rod; 501. knob part; 6. converging box; 61. converging base box; 62. sealing cover; 601. converging port; 602. second bevel gear part; 603. fourth bevel gear part; 7. converging shaft; 8. first converging knob; 801. first bevel gear part; 9. rack; 10. splint; 11. second converging knob; 1101. third bevel gear part. DETAILED DESCRIPTION

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0017] It should be noted that if there are directional indications (such as up, down, bottom, top, etc.) involved in this embodiment, the directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. Unless otherwise clearly specified and limited, the terms "set", "connected", and "connected to" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0018] As Figures 1-6As shown in the figure, a general ultrasonic interventional guidance device for convex array and linear array ultrasonic probes includes an elastic tightening belt 1, a tightening mechanism for tightening the elastic tightening belt 1, and a guiding mechanism for guiding and adjusting the puncture angle of the puncture needle 2. Among them, the guiding mechanism is connected to the elastic tightening belt 1, and the elastic tightening belt 1 is made of a flexible material and has a certain elasticity. Therefore, within the range of the original length and extended length of the elastic tightening belt 1, the elastic tightening belt 1 can be operated to surround the outer periphery of probes of different specifications, and when the tightening mechanism is used to tighten the elastic tightening belt 1, the guiding mechanism can be firmly fixed on the probe. Further, the guiding mechanism includes a mounting block 3 connected to the elastic tightening belt 1, a guiding block 4 slidably connected to the mounting block 3, and an adjusting rod 5 threadedly connected to the mounting block 3 along the sliding direction of the guiding block 4. The end of the adjusting rod 5 is rotatably connected to the guiding block 4. Among them, the mounting block 3 is fixedly connected to the elastic tightening belt 1, and when the adjusting rod 5 is twisted, the guiding block 4 can move along a fixed path and direction under the traction of the adjusting rod 5. Further, a first perforated ball 401 is rotatably connected to the guiding block 4, a second perforated ball 301 is rotatably connected to the mounting block 3, and the puncture needle 2 can pass through the through holes on the first perforated ball 401 and the second perforated ball 301, and an elastic cushion layer capable of covering the outer periphery of the puncture needle 2 is provided on the inner wall of the through hole. Among them, the second perforated ball 301 is rotatably connected to a fixed position on the mounting block 3, and when the operator operates the puncture needle 2 to pass through the first perforated ball 401 and the second perforated ball 301, the tip of the puncture needle 2 can be exposed outside the mounting block 3, and when the puncture needle 2 is further operated to pass through the second perforated ball 301, the puncture needle 2 can be inserted into the human body. It should be noted that since the second perforated ball 301 is rotatably connected to a fixed position on the guiding block 4, and when the operator twists the adjusting rod 5 to drive the guiding block 4 to slide, the puncture needle 2 rotates with the second perforated ball 301 as the rotation axis, so as to flexibly adjust the puncture angle of the puncture needle 2. The elastic cushion layer provided on the first puncture ball and the second puncture ball can increase the friction between the puncture needle 2 and the inner wall of the through hole when the puncture needle 2 enters through the through hole on it, so as to ensure the stability of the position of the puncture needle 2. At the same time, since the elastic cushion layer has good elasticity and deformation recovery ability, within the range of the deformation recovery ability of the elastic cushion layer, the guiding mechanism can be applicable to puncture needles 2 of different models, thus effectively increasing the versatility of the guiding device.

[0019] Further, as Figure 2 、 Figure 3As shown, due to the displacement of the guiding block 4 and the rotation of the first perforated ball 401 and the second perforated ball 301, the puncture needle 2 can be adjusted in angle within a fixed operation plane. And when the guiding mechanism is fixed to the probe through the elastic restraint band 1 and the restraint mechanism, the operation plane where the puncture needle 2 moves is fixed relative to the probe. During actual operation, the operator can change the position of the operation plane of the puncture needle 2 by adjusting the position of the probe, thereby changing the initial puncture angle of the puncture needle 2. Coupled with the effect that the puncture needle 2 can further adjust the puncture angle within the operation plane, the guiding device in this technical solution can meet the usage requirements of the operator for the puncture needle 2 under special circumstances.

[0020] Furthermore, in this technical solution, the guiding block 4 can be slidably connected to the limiting groove provided on the mounting block 3. The sliding fit between the limiting groove and the guiding block 4 can adopt the matching structures such as dovetail groove and dovetail block, T-shaped block and T-shaped groove, and rectangular block and rectangular groove in the prior art. Preferably, in this technical solution, the guiding block 4 is rectangular, and one end of the adjusting rod 5 can extend into the rectangular groove (limiting groove) and is rotatably connected to the guiding block 4, thereby restricting the movement range of the guiding block 4 within the rectangular groove (limiting groove), and the guiding block 4 can move along the corresponding rectangular groove (limiting groove) under the traction of the adjusting rod 5. It should be noted that in this technical solution, a knob portion 501 is provided at the end of the adjusting rod 5 outside the mounting block 3, and anti-slip patterns are provided on the surface of the knob portion 501 to facilitate the operator to manually twist the adjusting rod 5.

[0021] As described above, such as Figure 2 、 Figure 4As shown in the figure, the converging mechanism includes a converging box 6 with a cavity inside, and a converging port 601 communicating with the cavity is provided on the converging box 6. Among them, two converging shafts 7 respectively rotatably connected to the converging box 6 are arranged in the cavity, and both ends of the elastic converging belt 1 can pass through the converging port 601 and be respectively connected to the two converging shafts 7. A first converging knob 8 that can mesh and drive the two converging shafts 7 is movably inserted into the converging box 6 from the outside to the inside. Specifically, the rotation axes of the two converging shafts 7 and the first converging knob 8 are parallel to each other, tooth portions are provided on both the two converging shafts 7 and the first converging knob 8, and the tooth portion on the first converging knob 8 meshes with the tooth portions on the two converging shafts 7. It should be noted that the tooth grooves on the tooth portion are straight teeth, that is, the tooth grooves are linearly distributed along the axial directions of the converging shafts 7 and the first converging knob 8, so that the first converging knob 8 can move up and down along its axis. And when one end of the first converging knob 8 placed outside the converging box 6 fits on the surface of the converging box 6, a first bevel gear portion 801 provided on the first converging knob 8 can be engaged and matched with a second bevel gear portion 602 provided on the surface of the converging box 6. It should be noted that since the elastic converging belt 1 has a certain elasticity, when the elastic converging belt 1 is tightened by twisting the first converging knob 8, the elastic converging belt 1 will exert a certain pulling force on the converging shaft 7 due to extension, and this pulling force can drive the first converging knob 8 to rotate. Therefore, when the first converging knob 8 is pressed down to fit with the converging box 6, the first bevel gear portion 801 thereon can be engaged with the second bevel gear portion 602 on the converging box 6, so as to effectively lock the tightened elastic converging belt 1, enabling the converging belt to stably loop around the probe head.

[0022] Further, in this embodiment, as Figure 1 , Figure 4As shown in the figure, two racks 9 arranged in parallel are movably penetrated through the bundling box 6. One end of each rack 9 is connected with a clamping plate 10 that can be placed in the inner cavity. And a second bundling knob 11 that can be meshed and driven with the two racks 9 is movably penetrated through the bundling box 6 from outside to inside. When the end of the second bundling knob 11 placed outside the bundling box 6 fits on the surface of the bundling box 6, the third bevel gear part 1101 arranged on the second bundling knob 11 can be clamped and matched with the fourth bevel gear part 603 arranged on the surface of the bundling box 6. Specifically, when the second bundling knob 11 is rotated manually, the two clamping plates 10 can move synchronously towards (or away from) the elastic bundling belts 1 respectively connected to the two bundling shafts 7. And when the two clamping plates 10 move towards the elastic bundling belts 1, the elastic bundling belts 1 surrounding the probe can be further contracted, ensuring the firmness of the elastic bundling belts 1 sleeved on the probe and improving the stability of the operation of the puncture needle 2. At the same time, when the two clamping plates 10 on the racks 9 move towards each other and inwardly gather the elastic bundling belts 1, the elastic bundling belts 1 will drive the two clamping plates 10 to move away from each other due to their own elasticity. Therefore, after the second bundling knob 11 is pressed down until the third bevel gear surface is clamped with the fourth bevel gear surface, the positions of the two clamping plates 10 can be effectively locked.

[0023] As described above, the section of the rack 9 connected to the clamping plate 10 is C-shaped, and this section of the rack 9 is placed outside the bundling box 6, so that the operator can directly press down the rack 9 into the bundling box 6 to further tighten the elastic bundling belt 1, which is convenient for operation.

[0024] Furthermore, as Figure 1 shown, in this technical solution, the elastic bundling belt 1 is flat-shaped to increase the contact area between the elastic bundling belt 1 and the surface of the probe and disperse the pressure range of the elastic bundling belt 1 acting on the probe. At the same time, a closed-loop structure can be formed by enclosing between the elastic bundling belt 1 and the bundling box 6, and a plurality of silica gel columns 101 are arranged on the inner surface of the elastic bundling belt 1 to increase the friction force between the elastic bundling belt 1 and the surface of the probe and prevent the elastic bundling belt 1 from sliding relative to the probe after being tightened.

[0025] Furthermore, as Figure 2 shown, the bundling box 6 includes a bundling base box 61 and a cover 62 detachably connected to the bundling base box 61. The two ends of the bundling shaft 7 are respectively rotatably connected to the cover 62 and the bundling base box 61, and the first bundling knob 8 is movably penetrated through the cover 62. That is, the bundling base box 61 and the cover 62 can be connected by structures such as bolts, buckles, and snap fasteners (not shown in the figure) to facilitate the assembly and disassembly of each component and facilitate daily maintenance and disinfection and sterilization.

[0026] Working principle: Place the front end of the ultrasonic probe inside the closed-loop structure formed by enclosing between the elastic tightening belt 1 and the tightening box 6. Subsequently, adjust the length of the elastic tightening belt 1 by rotating the first tightening knob 8, that is, adjust the ring size range of the closed-loop structure, so that the side of the elastic tightening belt 1 with the silica gel column 101 closely adheres to the front end surface of the probe. Subsequently, press down the first tightening knob 8 until the first bevel gear portion 801 thereon engages with the second bevel gear portion 602 on the tightening box 6, thereby effectively locking the tightened elastic tightening belt 1. Subsequently, further tighten the elastic tightening belt 1 sleeved on the probe by twisting the second tightening knob 11 or pressing down the section of the rack 9 outside the tightening box 6 to ensure stable fixation of the probe. Subsequently, pass the puncture needle 2 through the first perforated ball 401 on the guiding block 4 and the second perforated ball 301 on the mounting block 3, so that the operator can drive the displacement of the guiding block 4 by rotating the adjusting rod 5, thereby adjusting the inclination angle of the puncture needle 2. Finally, the operator can perform the puncture operation safely and accurately under the real-time guidance of the ultrasonic probe.

[0027] Based on the ideal embodiments of the present invention as inspiration, through the above description, relevant personnel can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A general ultrasonic interventional guidance device for convex array and linear array ultrasonic probes, characterized in that: It includes an elastic tightening band (1), a tightening mechanism for tightening the elastic tightening band (1), and a guiding mechanism for guiding and adjusting the puncture angle of the puncture needle (2); The guiding mechanism includes a mounting block (3) connected to the elastic tightening band (1), a guiding block (4) slidably connected to the mounting block (3), and an adjusting rod (5) threadedly connected to the mounting block (3) along the sliding direction of the guiding block (4), and the end of the adjusting rod (5) is rotatably connected to the guiding block (4); Wherein, a first perforated ball (401) is rotatably connected to the guiding block (4), a second perforated ball (301) is rotatably connected to the mounting block (3), the puncture needle (2) can pass through the through holes on the first perforated ball (401) and the second perforated ball (301), and an elastic cushion layer capable of covering the outer periphery of the puncture needle (2) is provided on the inner wall of the through hole.

2. The universal ultrasonic interventional guidance device for convex array and linear array ultrasonic probes according to claim 1, wherein: The tightening mechanism includes a tightening box (6) with a cavity inside, and a tightening port (601) communicating with the cavity is provided on the tightening box (6); Wherein, two tightening shafts (7) respectively rotatably connected to the tightening box (6) are arranged in the cavity, and both ends of the elastic tightening band (1) can pass through the tightening port (601) and be respectively connected to the two tightening shafts (7); A first tightening knob (8) capable of meshing and driving with the two tightening shafts (7) is movably inserted into the tightening box (6) from the outside to the inside, and when the end of the first tightening knob (8) placed outside the tightening box (6) fits on the surface of the tightening box (6), a first bevel gear portion (801) provided on the first tightening knob (8) can be engaged and cooperated with a second bevel gear portion (602) provided on the surface of the tightening box (6).

3. The general ultrasonic intervention guiding device for convex array and linear array ultrasonic probes according to claim 2, characterized in that: Two mutually parallel racks (9) are movably inserted into the tightening box (6), one end of each rack (9) is connected with a clamping plate (10) capable of being placed in the inner cavity, and a second tightening knob (11) capable of meshing and driving with the two racks (9) is movably inserted into the tightening box (6) from the outside to the inside, and when the end of the second tightening knob (11) placed outside the tightening box (6) fits on the surface of the tightening box (6), a third bevel gear portion (1101) provided on the second tightening knob (11) can be engaged and cooperated with a fourth bevel gear portion (603) provided on the surface of the tightening box (6); And when the second tightening knob (11) rotates, the two clamping plates (10) can synchronously move towards the elastic tightening band (1) respectively connected to the two tightening shafts (7).

4. The universal ultrasound intervention guiding device for convex array and linear array ultrasound probes according to claim 3, wherein: A section of the rack (9) connected to the clamping plate (10) is C-shaped, and this section of the rack (9) is placed outside the tightening box (6).

5. The universal ultrasonic interventional guidance device for convex array and linear array ultrasonic probes according to claim 1, wherein: The elastic tightening band (1) is flat-shaped.

6. The universal ultrasound intervention guiding device for convex array and linear array ultrasound probes according to claim 2, characterized in that: A closed-loop structure can be formed by surrounding between the elastic tightening band (1) and the tightening box (6), and a plurality of silica gel columns (101) are provided on the inner side surface of the elastic tightening band (1).

7. The general ultrasonic interventional guidance device for convex array and linear array ultrasonic probes according to claim 2, characterized in that: The converging box (6) includes a converging base box (61) and a cover (62) detachably connected to the converging base box (61), and both ends of the converging shaft (7) are rotatably connected to the cover (62) and the converging base box (61) respectively, and the first converging knob (8) movably penetrates through the cover (62).

8. The general-purpose ultrasonic interventional guidance device for convex array and linear array ultrasonic probes according to claim 1, characterized in that: One end of the adjusting rod (5) located outside the mounting block (3) is provided with a knob portion (501), and the surface of the knob portion (501) is provided with anti-slip lines.

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