Medical ultrasonic probe support

Abstract

The utility model relates to the technical field of medical instruments, in particular to a medical ultrasonic probe support which comprises a supporting frame, the supporting frame is provided with an annular side wall, the edge of the fixed end of the side wall is provided with an annular outer edge extending in the direction away from the axis of the side wall, and an inner ring which is coaxial with the side wall and can rotate around the axial direction of the side wall is arranged in the side wall. The center of the inner ring is provided with a probe fixing piece used for placing an ultrasonic probe, and the top face of the annular outer edge of the supporting frame is provided with a puncture needle limiting piece. The auxiliary device can be used for vascular access ultrasound paracentesis, the angle and position relation between the puncture needle head and an ultrasound phenomenon plane can be adjusted, and medical workers are helped to achieve the needle inserting accuracy of the puncture needle.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a medical ultrasound probe bracket. Background Art

[0002] The combined use of ultrasound probes and puncture needles can complete various operations such as biopsy, fluid extraction, puncture, angiography, vascular drainage, drug injection and blood transfusion, and cancer injection under real-time ultrasound monitoring or guidance.

[0003] Ultrasound-guided puncture is generally divided into two methods: in-plane puncture and out-of-plane puncture. In the field of vascular access, both puncture techniques have applicable scenarios. In vascular access ultrasound, in-plane / out-of-plane refers to the relative relationship with the needle, such as Figure 1 When the needle is parallel to the ultrasound imaging plane, it is in-plane; when the needle is perpendicular to the ultrasound imaging plane, it is out-of-plane. Out-of-plane can allow the needle to be inserted from the top of the center of the blood vessel, but the needle tip must be tracked and located by rotating the probe to avoid underestimating the depth of the needle tip. Vascular access ultrasound usually requires a combination of in-plane / out-of-plane methods to complete precise operations, that is, out-of-plane / short-axis scanning is used to confirm that the needle tip has punctured the center of the blood vessel, and the probe is rotated to in-plane / long-axis insertion. The real-time position of the needle tip or even the entire needle body can be statically observed in the plane, but without the support of auxiliary facilities such as a puncture stand, it takes medical staff hundreds of times of practice to master the technique to keep the needle always in the ultrasound imaging plane. Many times, due to excessive puncture angles, even though the puncture needle is clearly in the ultrasound imaging plane, the position of the needle tip cannot be seen on the ultrasound image because the puncture needle is not perpendicular to the ultrasound scan line.

[0004] In order to solve the problem of how to ensure the accuracy of the needle insertion position and angle during ultrasound-guided puncture surgery, and thus make the puncture needle clearly visible in the ultrasound imaging plane, the existing technology proposes a device that can combine and limit the ultrasound probe and the puncture needle, such as the ultrasound-guided puncture auxiliary bracket and ultrasound-guided puncture device disclosed in utility model ZL 202110819884.3. The probe holder of the device is connected to the needle holder, and there is a puncture space between the needle holder and the probe holder. The support seat is movably provided with a mounting seat for mounting the puncture needle, and the support seat is movably mounted on the base. The support seat can move back and forth relative to the puncture space, and the mounting seat can move up and down relative to the puncture space, thereby adjusting the puncture site of the needle tip of the puncture needle.

[0005] However, the prior art device fixes the position of the ultrasound probe relative to the puncture needle, the puncture needle can only be extended and retracted at a fixed angle, and the probe cannot be rotated. This device is only applicable to out-of-plane puncture situations. Summary of the Invention

[0006] In vascular access ultrasound puncture, in order to ensure that the relative positions of the ultrasound probe and the puncture needle meet the requirements of the in-plane / out-of-plane combination method, the present invention proposes a medical ultrasound probe holder, including a support frame, the support frame having a cylindrical side wall, the edge of the fixed end of the side wall having an annular outer edge extending away from its axial center, an inner ring coaxial with the side wall and rotatable around the axial direction is provided inside the side wall, a probe fixing part for placing the ultrasound probe is provided at the center of the inner ring, and a puncture needle limiter is provided on the top surface of the annular outer edge of the support frame.

[0007] As an improvement, the puncture needle limiter includes two puncture needle supports and a puncture needle sleeve hinged to the top of the puncture needle support. A notch is provided on the edge of the annular outer edge of the support frame, and the two sides of the notch are fixedly connected to the bottom of the puncture needle support respectively.

[0008] As an improvement, a groove is provided in the annular side wall of the support frame, a deep groove ball bearing with sealing rings on both sides is embedded in the groove, and the edge of the inner ring is fixedly connected to the inner wall of the deep groove ball bearing with sealing rings on both sides.

[0009] As an improvement, the outer walls on both sides of the puncture needle sleeve are provided with studs, the top of the puncture needle bracket is provided with a through hole, the stud passes through the through hole, and the top of the puncture needle bracket is provided with a fastening nut adapted to the stud.

[0010] As an improvement, a mounting block is provided at the top of the puncture needle bracket on one side of the notch. The mounting block is a semicircular block vertically arranged on the top surface of the annular outer edge. The arc surface of the mounting block is provided with a scale to assist in adjusting the insertion angle of the puncture needle.

[0011] As an improvement, an anti-slip pad is provided at the bottom end of the support frame.

[0012] The utility model can be used as an auxiliary instrument for ultrasonic puncture of vascular access, and can adjust the angle and position relationship between the puncture needle and the ultrasonic phenomenon plane, helping medical staff to achieve accurate insertion of the puncture needle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 :Schematic diagram of the relationship between the ultrasound plane and the puncture needle position in the in-plane / out-of-plane method of vascular access ultrasound, where Figure 1 a shows the positional relationship of the puncture in the plane, Figure 1 b shows the positional relationship of out-of-plane puncture;

[0014] Figure 2 : A schematic structural diagram of an embodiment;

[0015] Figure 3 : A schematic cross-sectional view of an embodiment;

[0016] Figure 4 : A schematic diagram of the local structure of an embodiment. DETAILED DESCRIPTION

[0017] Ultrasound imaging uses ultrasonic beams to scan the human body, receiving and processing reflected signals to obtain images of internal organs. The ultrasound probe is an essential component of an ultrasound diagnostic instrument, converting electrical signals into ultrasonic signals and vice versa, providing dual ultrasound transmission and reception capabilities. Among commonly used ultrasound instruments, the B-type (brightness modulation) ultrasound section imager, or "B-ultrasound," uses light spots of varying brightness to represent the strength of the received signal. As the probe moves horizontally, the light spots on the display also move synchronously, forming a sectional image of the section scanned by the ultrasonic beam, resulting in a two-dimensional image.

[0018] The following examples further illustrate the content of the present invention, but should not be construed as limiting the present invention. Without departing from the spirit and essence of the present invention, modifications or replacements made to the methods, steps or conditions of the present invention are within the scope of the present invention.

[0019] Some embodiments have Figure 2-4 The structure shown includes Figure 2 The support frame has a cylindrical side wall 10, and the edge of the top end of the side wall 10 has an annular outer edge 11 extending away from its axial center. An inner ring 12 is provided in the side wall 10, which is coaxial with the side wall 10 and can rotate around its axial direction. A probe fixing part 1A for placing an ultrasonic probe is provided at the center of the inner ring 12, and a puncture needle limiter 1B is provided on the top surface of the annular outer edge 11 of the support frame 1.

[0020] The embodiment Figure 3 A groove 101 is provided in the annular side wall 10 of the support frame 1, and a deep groove ball bearing 102 with sealing rings on both sides is embedded in the groove 101. The edge of the inner ring 12 is fixedly connected to the inner wall of the deep groove ball bearing with sealing rings on both sides (not shown in the drawings).

[0021] like Figure 2 The puncture needle limiter 1B includes two puncture needle supports 1B1 and a puncture needle sleeve 1B2 hinged to the top of the puncture needle support 1B1. A notch 110 is provided on the edge of the annular outer edge of the support frame, and both sides of the notch 110 are fixedly connected to the bottom of the puncture needle support 1B1.

[0022] Based on the above embodiments, in other embodiments, the outer walls on both sides of the puncture needle cannula are provided with studs, the top of the puncture needle bracket is provided with a through hole, the stud passes through the through hole, and the top of the puncture needle bracket is provided with a fastening nut adapted to the stud (not shown in the drawings).

[0023] The inner ring, which holds the ultrasound probe, rotates within the support frame, while the puncture needle is fixed to the vertical plane defined by the puncture needle holder, allowing the ultrasound imaging plane produced by the ultrasound probe to rotate axially with the support frame. This allows the needle tip to be parallel to or perpendicular to the ultrasound imaging plane.

[0024] On the basis of the above embodiment, other embodiments further provide a top end of the puncture needle support on the notch side of the edge of the annular outer edge of the support frame as follows: Figure 4 The erection block 1B3 is a semicircular block vertically arranged on the top surface of the annular outer edge. The arc surface of the erection block is provided with a scale (not shown in the drawings) to assist in adjusting the insertion angle of the puncture needle. The insertion angle of the puncture needle can be measured.

[0025] In other embodiments, the bottom end of the support frame is provided with an anti-skid pad (not shown in the drawings) to prevent the friction between the bottom end of the support frame and the skin and prevent movement.

[0026] In summary, the present invention can be used as an auxiliary instrument for ultrasonic puncture of vascular access, and can adjust the angle and position relationship between the puncture needle and the ultrasonic phenomenon plane, helping medical staff to achieve accurate insertion of the puncture needle.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, such modifications or improvements, without departing from the scope of the present invention, are intended to fall within the scope of the claims.

Claims

1. A medical ultrasound probe bracket, characterized in that: It includes a support frame, which has a cylindrical side wall, and the edge of the fixed end of the side wall has an annular outer edge extending away from its axial center. An inner ring is provided in the side wall, which is coaxial with the side wall and can rotate around its axial direction. A probe fixing part for placing an ultrasonic probe is provided at the center of the inner ring, and a puncture needle limiter is provided on the top surface of the annular outer edge of the support frame.

2. The medical ultrasound probe holder according to claim 1, characterized in that: The puncture needle limiter includes two puncture needle supports and a puncture needle sleeve hinged to the top of the puncture needle support. A notch is provided on the edge of the annular outer edge of the support frame, and both sides of the notch are fixedly connected to the bottom of the puncture needle support respectively.

3. The medical ultrasound probe holder according to claim 1, characterized in that: A groove is provided in the annular side wall of the support frame, a deep groove ball bearing with sealing rings on both sides is embedded in the groove, and the edge of the inner ring is fixedly connected to the inner wall of the deep groove ball bearing with sealing rings on both sides.

4. The medical ultrasound probe holder according to claim 2, characterized in that: The outer walls of both sides of the puncture needle sleeve are provided with studs, the top of the puncture needle bracket is provided with a through hole, the stud passes through the through hole, and the top of the puncture needle bracket is provided with a fastening nut adapted to the stud.

5. The medical ultrasound probe holder according to claim 4, characterized in that: A mounting block is provided at the top of the puncture needle holder on one side of the notch. The mounting block is a semicircular block vertically arranged on the top surface of the annular outer edge. A scale for assisting in adjusting the insertion angle of the puncture needle is provided on the arc surface of the mounting block.

6. The medical ultrasound probe holder according to claim 1, characterized in that: The bottom end of the support frame is provided with an anti-slip pad.

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