Mini midline catheter ultrasonic probe fixer

Abstract

The invention discloses a mini midline catheter ultrasonic probe fixator which comprises a clamping ring, a transverse plate and a vertical plate. Clamping rings are symmetrically arranged on two sides of the lower end of the transverse plate, and one side of the upper end is rotationally connected with a vertical plate; a groove is formed in the middle of the lower end of the transverse plate, rotating seats are symmetrically arranged front and back and are fixedly connected with rotating rods, and a clamping screw rod is horizontally arranged in the middle; the middle parts of the clamping screws are respectively in threaded connection with the sliding blocks, and one ends penetrate through the transverse plate to be provided with clamping knobs; a shifting piece is arranged at the lower end of the sliding block and is movably connected with a push plate; the middle part of the front end of the clamping ring is provided with a connecting shaft which is rotationally connected with the rotating rod; a clamping spring is arranged in the middle of the push plate and fixedly connected with the clamping ring on the other side. The arm of a patient is fixed through the clamping ring, the clamping ring slides along the arm of the patient, angle deviation caused by hand fatigue of the probe is avoided, it is ensured that the ultrasonic probe is always perpendicular to an examination part, and a stable detection path is maintained.

Description

Technical Field

[0001] The invention belongs to the technical field of medical auxiliary equipment, and particularly relates to a mini midline catheter ultrasound probe holder. Background Art

[0002] Peripheral mini midline catheter superficial vein puncture is a new venous puncture technology that combines ultrasound guidance and AST accelerated Sediger integrated technology, which is suitable for upper limb vein treatment. This technology requires real-time display of vascular anatomical structure through ultrasound technology to guide precise puncture. The insertion depth of the mini midline catheter is between that of the superficial venous catheter and the medium-length catheter. It is usually placed in the superficial vein of the forearm or upper arm (the basilic vein, cephalic vein and brachial vein are the preferred target veins). It can innovatively solve the problems of infusion treatment for clinical hospitalized patients, such as repeated punctures caused by the short residence time of general superficial venous catheters in the peripheral blood vessels of the human body, and insufficient daily self-care ability of the upper limbs (eating, washing hands, going to the toilet, etc.) caused by the retention of the catheter in the arm. It is hoped that through the improvement and innovation of this technology, the pain of medical treatment for patients can be reduced and their satisfaction with medical treatment can be improved.

[0003] At present, since this technology is relatively new in clinical application and is in the initial exploration stage, the accompanying auxiliary technology has not yet been invented or studied accordingly. Therefore, this technology still has corresponding limitations in its application. Specifically: on the one hand, when the operator holds the ultrasound probe to explore the direction of the blood vessels during the operation, the back of the ultrasound probe lacks a support object, which makes it difficult for the operator to maintain stable hand strength and difficult to find the patient's skin vein puncture point; on the other hand, due to the operator's inaccurate angle control and the lack of a fixator to provide wrist support, the venous puncture process is very likely to be unsuccessful, affecting the success rate of the catheterization.

[0004] Therefore, in response to the clinical difficulties and application limitations faced by the above-mentioned technology, this plan proposes a mini midline catheter ultrasound probe fixator to perform physical structural fixation of the ultrasound probe, thereby improving the detection accuracy and the success rate of venipuncture, making up for the limitations of this technology in clinical applications and the lack of auxiliary technology, so as to alleviate the pain and reduced self-care ability of patients caused by venipuncture treatment, thereby improving medical and health standards and the quality of nursing services. Summary of the Invention

[0005] To solve the above-mentioned problems in the prior art, the present invention designs a mini midline catheter ultrasound probe holder. A clamping ring is provided to temporarily clamp and fix the patient's arm on the puncture side. A horizontal plate is provided at the upper end of the clamping ring to ensure that the inspection path does not deviate when the ultrasound probe is used for venipuncture. A vertical plate is provided at the front end of the horizontal plate. By directly fixing the ultrasound probe on the vertical plate, the angle of the ultrasound probe can be perpendicular to the corresponding puncture and inspection site of the patient's skin during the inspection process, so that the arm force of the venipuncture operator is constant and does not deviate, thereby improving the accuracy of venipuncture.

[0006] In order to achieve the above technical effects, the present invention is implemented through the following technical solutions: a mini midline catheter ultrasound probe holder, comprising: a clamping ring, a horizontal plate, and a vertical plate;

[0007] Clamping rings are symmetrically arranged on both sides of the lower end of the horizontal plate, and one side of the upper end is rotatably connected to the vertical plate;

[0008] A slot is provided in the middle of the lower end of the horizontal plate, a rotating seat is symmetrically arranged front and back to fix the rotating rod, a clamping screw is horizontally arranged in the middle, and one side of the upper end is rotatably connected to the vertical plate; the middle of the clamping screw is threadedly connected to the slider, and one end penetrates the horizontal plate to set the clamping knob; the slider is slidably connected to the horizontal plate, and a paddle is provided at the lower end to movably connect to the push plate;

[0009] A connecting shaft is provided in the middle of the front end of the clamping ring to rotate and connect the rotating rod, and a push plate is provided at the upper end; a clamping spring is provided in the middle of the push plate to be fixedly connected to the clamping ring on the other side;

[0010] Furthermore, the cross section of the clamping ring is configured as an arc-shaped surface with a high center and low sides to prevent jamming with the patient's arm during movement, and a low-friction material coating is provided on the inner wall of the clamping ring;

[0011] Furthermore, when the push plate is in a vertical state, the clamping rings on both sides are in an open state;

[0012] Furthermore, the pitch of the threads in the sliders on both sides is the same, and the thread rotation directions are opposite;

[0013] Furthermore, a rotating shaft is provided at the lower end of the vertical plate to rotatably connect to the horizontal plate, a middle portion of a side close to the horizontal plate is detachably connected to the gripping plate, and a sliding sleeve is provided at the edge of a side away from the horizontal plate to slidably connect to the clamping plate; four finger grooves are provided on the surface of the gripping plate for gripping;

[0014] Furthermore, the lower end of the vertical plate is provided with a rounded corner on the side close to the horizontal plate, which can be rotated, and the side away from the horizontal plate is provided with a right angle to limit the vertical plate;

[0015] Furthermore, a plurality of limiting grooves are arranged in an array on both sides of the interior of the sliding sleeve;

[0016] Furthermore, circular holes are symmetrically provided on both sides of the front end of the clamping plate to set telescopic springs; the front end of the telescopic spring is fixedly connected to the limiting column; and the front end of the limiting column is movably connected to the limiting groove.

[0017] The beneficial effects of the present invention are:

[0018] The present invention fixes the patient's arm through a clamping ring and slides along the patient's arm to avoid angular deviation of the probe due to hand fatigue and movement during operation, ensuring that the ultrasound probe is always perpendicular to the examination site and maintaining a stable detection path. In addition, a vertical connection is formed by the horizontal plate and the vertical plate, replacing the traditional hand-held method, ensuring that the angle of the ultrasound probe during movement is always perpendicular to the examination position, reducing the impact of human jitter on the ultrasound image, and improving the accuracy of superficial vein position detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0020] Figure 1 It is a schematic diagram of the overall structure of a mini midline catheter ultrasound probe holder;

[0021] Figure 2 It is a schematic diagram of the riser structure of a mini midline catheter ultrasound probe holder;

[0022] Figure 3 A schematic diagram of the partial structure of a mini midline catheter ultrasound probe holder;

[0023] Figure 4 It is a schematic diagram of the internal structure of the sliding sleeve of a mini midline catheter ultrasound probe holder;

[0024] Figure 5 It is a schematic diagram of the grip structure of a mini midline catheter ultrasound probe holder;

[0025] Figure 6 It is a schematic diagram of the slider structure of a mini midline catheter ultrasound probe holder;

[0026] Figure 7 It is a schematic diagram of the internal structure of the horizontal plate of a mini midline catheter ultrasound probe holder;

[0027] Figure 8 It is a partial structural diagram of a mini midline catheter ultrasound probe holder B;

[0028] Figure 9 It is a schematic diagram of the clamping ring structure of a mini midline catheter ultrasound probe holder;

[0029] Figure 10It is a schematic diagram of the bottom structure of the horizontal plate of a mini midline catheter ultrasound probe holder;

[0030] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0031] 1-Clamping ring, 2-Horizontal plate, 3-Clamping knob, 4-Vertical plate, 5-Sleeve, 6-Clamping plate, 7-Rotary shaft, 8-Rounded corner, 9-Limiting column, 10-Telescopic spring, 11-Limiting groove, 12-Grip plate, 13-Finger groove, 14-Slider, 15-Push plate, 16-Clamping spring, 17-Plectrum, 18-Connecting shaft, 19-Right angle, 20-Swivel seat, 21-Rotary rod, 22-Clamping screw. DETAILED DESCRIPTION

[0032] The present invention discloses a mini midline catheter ultrasound probe holder, comprising: a clamping ring 1, a horizontal plate 2, and a vertical plate 4;

[0033] The clamping rings 1 are symmetrically arranged on both sides of the lower end of the horizontal plate 2, and one side of the upper end is rotatably connected to the vertical plate 4;

[0034] A slot is provided in the middle of the lower end of the horizontal plate 2, and a rotating seat 20 is symmetrically arranged front and back to be fixedly connected to the rotating rod 21. A clamping screw 22 is horizontally provided in the middle, and one side of the upper end is rotatably connected to the vertical plate 4; the middle of the clamping screw 22 is threadedly connected to the slider 14, and one end penetrates the horizontal plate 2 to be provided with a clamping knob 3; the slider 14 is slidably connected to the horizontal plate 2, and a paddle 17 is provided at the lower end to be movably connected to the push plate 15;

[0035] A connecting shaft 18 is provided in the middle of the front end of the clamping ring 1 to rotate and connect the rotating rod 21, and a push plate 15 is provided at the upper end; a clamping spring 16 is provided in the middle of the push plate 15 to be fixedly connected to the clamping ring 1 on the other side; the patient's arm is fixed by the clamping ring 1 and slides along the patient's arm to avoid angular deviation of the probe due to hand fatigue, ensure that the ultrasonic probe is always perpendicular to the examination part, and maintain a stable detection path.

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] Example 1

[0038] like Figure 1-10 As shown, the clamping rings 1 are symmetrically arranged on both sides of the lower end of the horizontal plate 2, and one side of the upper end is rotatably connected to the vertical plate 4;

[0039] A slot is provided in the middle of the lower end of the horizontal plate 2, and a rotating seat 20 is symmetrically arranged front and back to be fixedly connected to the rotating rod 21. A clamping screw 22 is horizontally provided in the middle, and one side of the upper end is rotatably connected to the vertical plate 4; the middle of the clamping screw 22 is threadedly connected to the slider 14, and one end penetrates the horizontal plate 2 to be provided with a clamping knob 3; the slider 14 is slidably connected to the horizontal plate 2, and a paddle 17 is provided at the lower end to be movably connected to the push plate 15;

[0040] A connecting shaft 18 is provided in the middle of the front end of the clamping ring 1 for rotationally connecting to a rotating rod 21, and a push plate 15 is provided at the upper end; a clamping spring 16 is provided in the middle of the push plate 15 for fixedly connecting to the clamping ring 1 on the other side; when the clamping ring 1 is not subjected to force, it opens under the action of the clamping spring 16; at the same time, when the push plate 15 is subjected to force and moves, it can drive the clamping ring 1 to close;

[0041] Furthermore, the cross-section of the clamping ring 1 is configured as an arc-shaped surface with a high center and low sides to prevent the clamping ring 1 from getting stuck with the patient's arm during movement. This shape allows the clamping ring 1 to fit the contours of the human arm in the middle, while the sides do not come into contact with the arm, effectively avoiding getting stuck with the raised parts of the patient's arm during movement, thereby improving the patient's comfort when using the clamping ring.

[0042] Furthermore, when the push plate 15 is in a vertical state, the clamping rings 1 on both sides are in an open state, making it easier to place the fixator in a suitable position on the patient's arm.

[0043] Furthermore, the thread pitches in the sliders 14 on both sides are the same, but the thread rotation directions are opposite; when the clamping knob 3 is rotated, the clamping screw 22 rotates, and the sliders 14 on both sides move in opposite directions, thereby driving the paddle 17 at the lower end to push or pull the push plate 15, thereby adjusting the opening and closing degree of the clamping ring 1 to adapt to patients with different arm thicknesses;

[0044] Furthermore, a rotating shaft 7 is provided at the lower end of the vertical plate 4 for rotationally connecting to the horizontal plate 2. A gripping plate 12 is detachably connected to the middle portion of a surface close to the horizontal plate 2, making it easy to replace gripping plates 12 of different specifications according to different users. The two are connected by a snap fastener. When in use, the gripping plate 12 is subjected to force in the direction close to the vertical plate 4, without the need for excessive fixation. A sliding sleeve 5 is provided on the edge of a surface away from the horizontal plate 2 for sliding connection to the clamping plate 6. Four finger grooves 13 are provided on the surface of the gripping plate 12 for gripping.

[0045] Furthermore, a rounded corner 8 is provided at the lower end of the vertical plate 4 near the side of the horizontal plate 2, which can be rotated. When not in use, the vertical plate 4 can be directly flipped toward the horizontal plate 2, so that the horizontal plate 2 is folded for easy storage and carrying; a right angle 19 is provided on the side away from the horizontal plate 2 to limit the vertical plate 4; when in use, the vertical plate 4 is flipped to a position perpendicular to the horizontal plate 2, the right angle 19 contacts the surface of the horizontal plate 2, and the vertical plate 4 is limited. The force direction of the vertical plate 4 during use is away from the horizontal plate 2, so there is no need to make redundant limits on the vertical plate 4;

[0046] Furthermore, a plurality of limiting grooves 11 are arranged in an array on both sides of the interior of the sliding sleeve 5;

[0047] Furthermore, circular holes are symmetrically provided on both sides of the front end of the clamping plate 6 to accommodate telescopic springs 10; the front end of the telescopic spring 10 is fixedly connected to a limiting post 9; the front end of the limiting post 9 is movably connected to a limiting groove 11; through the movable connection between the limiting post 9 and the limiting groove 11, the clamping plate 6 is L-shaped, and the clamping plate 6 can be extended and retracted according to the size of the ultrasonic probe to clamp the ultrasonic probe;

[0048] In this embodiment, the working principle of the device is as follows: rotating the clamping knob 3 on the horizontal plate 2 drives the clamping screw 22 to rotate. Since the thread pitches in the sliders 14 on both sides are the same and the rotation directions are opposite, the rotation of the clamping screw 22 causes the sliders 14 on both sides to move in opposite directions, and the paddles 17 at the lower ends of the sliders 14 push or pull the push plates 15 accordingly. When the push plates 15 are in a vertical state, the clamping rings 1 on both sides are in an open state under the action of the clamping springs 16, which makes it convenient to place the fixator in a suitable position on the patient's arm. When the push plates 15 are moved under force, the clamping ring 1 is tightened, and the clamping springs 16 provide a certain elastic clamping force, which fits the patient's arm tightly. The arc-shaped surface of the clamping ring 1, which is higher in the middle and lower on both sides, fits the contour of the arm to avoid jamming, thereby achieving stable clamping and fixation of the patient's arm.

[0049] The vertical plate 4 is rotatably connected to the horizontal plate 2 via a rotating shaft 7. A rounded corner 8 is provided on the side close to the horizontal plate 2 to facilitate the operator to hold the grip 12 to rotate the vertical plate 4. When the vertical plate 4 is rotated to a position perpendicular to the horizontal plate 2, the right-angled side 19 of the vertical plate 4 away from the horizontal plate 2 contacts the surface of the horizontal plate 2, playing a limiting role to prevent the vertical plate 4 from excessive rotation, ensuring that the vertical plate 4 maintains a stable angle perpendicular to the horizontal plate 2 during use, providing a foundation for the probe to be installed perpendicular to the inspection site;

[0050] According to the size of the ultrasonic probe and the inspection requirements, the clamping plate 6 is slid up and down along the sliding sleeve 5 to adjust the position. At this time, the telescopic spring 10 is in a compressed or stretched state. When adjusted to the appropriate position, the telescopic spring 10 pushes the limit column 9 to fit into the corresponding limit groove 11, thereby achieving stable fixation of the clamping plate 6, and then firmly clamping the ultrasonic probe, ensuring that the position and angle of the probe are stable during the inspection process, and improving the accuracy of superficial vein position detection. When not in use, the vertical plate 4 can be flipped and folded toward the horizontal plate 2 for easy storage and carrying.

[0051] Example 2

[0052] In this embodiment, since the clamping ring 1 needs to move along the patient's arm, in actual use, the following coating material can be added to the portion of the inner wall of the clamping ring 1 that contacts the patient's skin to reduce friction with the patient's arm during use:

[0053] Medical-grade polyurethane (PU): It offers excellent wear resistance and a low coefficient of friction. Its smooth and flexible surface conforms to the contours of the arm while reducing resistance during movement. It is used in medical catheters, protective gear, and other parts that come into contact with the human body. It reduces the feeling of a clamping ring sliding across the arm.

[0054] Polytetrafluoroethylene (PTFE, Teflon): has an extremely low friction coefficient, a smooth and non-sticky surface, strong chemical stability, and is not easy to adhere to human tissue. It can be used as a coating material for clamping rings to make them smoother when moving and reduce friction irritation to the skin;

[0055] By spraying or laminating the above-mentioned coating material on the inner wall of the clamping ring, a smooth, low-friction surface is formed, allowing the fixator to slide more smoothly along the arm. The flexibility and conformability of the coating material can adapt to the contours of different patients' arms, reducing jamming caused by the mismatch between the clamping ring shape and the arm. Medical-grade materials meet biosafety requirements, avoid allergic or irritation reactions, and can withstand erosion by commonly used disinfectants such as alcohol and iodine tincture, ensuring safety and durability in clinical use.

[0056] To summarize, the present invention fixes the patient's arm through the clamping ring 1 and slides along the patient's arm to avoid the angle deviation of the ultrasonic probe due to unstable hand strength, ensure that the ultrasonic probe is always perpendicular to the inspection site, maintain a stable detection path, and form a vertical connection with the vertical plate 2 and the vertical plate 4 to replace the traditional hand-held method, thereby ensuring that the angle of the ultrasonic probe during movement is always perpendicular to the inspection position, reducing the impact of human jitter on the ultrasonic image, and improving the accuracy of superficial vein position detection.

[0057] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention.

[0058] The examples do not describe all details in detail, nor do they limit the invention to the specific embodiments described.

[0059] Implementation method.

Claims

1. A mini midline catheter ultrasound probe holder, characterized in that: include: Clamping ring, horizontal plate, vertical plate; Clamping rings are symmetrically arranged on both sides of the lower end of the horizontal plate, and one side of the upper end is rotatably connected to the vertical plate; A groove is opened in the middle of the lower end of the horizontal plate, and a swivel seat is symmetrically arranged in the front and rear to fix the rotating rod. A clamping screw is arranged horizontally in the middle, and one side of the upper end is rotatably connected to the vertical plate; the middle of the clamping screw is threadedly connected to the slider, and one end penetrates the horizontal plate to set the clamping knob; the slider is slidably connected to the horizontal plate, and a paddle is arranged at the lower end to movably connect to the push plate. The middle part of the front end of the clamping ring is provided with a connecting shaft for rotationally connecting to a rotating rod, and the upper end is provided with a push plate; the middle part of the push plate is provided with a clamping spring for fixedly connecting to the clamping ring on the other side.

2. The mini midline catheter ultrasound probe holder according to claim 1, characterized in that: The cross section of the clamping ring is set to be an arc-shaped surface with a high middle and low sides to prevent it from getting stuck with the patient's arm during movement. At the same time, a low-friction material coating is set on the inner wall of the clamping ring.

3. The mini midline catheter ultrasound probe holder according to claim 1, characterized in that: When the push plate is in a vertical state, the clamping rings on both sides are in an open state.

4. The mini midline catheter ultrasound probe holder according to claim 1, characterized in that: The thread pitches in the sliders on both sides are the same, and the thread rotation directions are opposite.

5. The mini midline catheter ultrasound probe holder according to claim 1, characterized in that: A rotating shaft is set at the lower end of the vertical plate to rotatably connect to the horizontal plate. The middle part of the side close to the horizontal plate is detachably connected to the grip plate. A sliding sleeve is set at the edge of the side away from the horizontal plate to slidably connect to the clamping plate. Four finger grooves are set on the surface of the grip plate for gripping.

6. The mini midline catheter ultrasound probe holder according to claim 5, characterized in that: The lower end of the vertical plate is provided with a rounded corner close to the horizontal plate and can be rotated, and the side away from the horizontal plate is provided with a right angle to limit the vertical plate.

7. The mini midline catheter ultrasound probe holder according to claim 5, characterized in that: A plurality of limiting grooves are arranged in an array on both sides of the interior of the sliding sleeve.

8. The mini midline catheter ultrasound probe holder according to claim 5, characterized in that: Circular holes are symmetrically provided on both sides of the front end of the clamping plate to accommodate telescopic springs; the front end of the telescopic spring is fixedly connected to a limiting column; and the front end of the limiting column is movably connected to a limiting groove.

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