Fixing device for radio frequency puncture needle

Abstract

The utility model relates to a fixing device for a radio frequency puncture needle, belongs to the technical field of medical supplies, and solves the technical problem that the position of the puncture needle is frequently changed due to the fact that the radio frequency puncture treatment under ultrasonic guidance needs to be operated by multiple persons after successful puncture. The fixing device of the radio frequency puncture needle comprises a base plate, a moving part and a pasting part, the moving part is installed on the base plate in a sliding mode, the pasting part is located at the bottom of the base plate, the moving part comprises a plurality of fixing parts with different fixing inclination angles, and the puncture needle can be fixed to the fixing parts with the inclination angles matched with the fixing parts. According to the fixing device of the radio frequency puncture needle, the radio frequency puncture needle can be prevented from changing the position in the follow-up administration or treatment process, and the risk that puncture needs to be conducted again due to the fact that the needle body moves is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical supplies, and in particular relates to a fixing device for a radio frequency puncture needle. Background Art

[0002] Radiofrequency therapy and nerve block therapy are currently commonly used treatment methods in the field of pain. With the development of precision technology, ultrasound-guided visual puncture is often used together with the above-mentioned technologies. The treating doctor usually holds the ultrasound probe in his left hand and uses the puncture needle in his right hand for puncture. After reaching the target area, the operator needs to pull out the needle core behind the puncture needle to connect the radiofrequency electrode, or give an injection of the drug from the radiofrequency needle hole. Most of these subsequent operations cannot be completed by a single person and require the assistance of others. This process often causes the position of the puncture needle to change, forcing the operator to re-puncture to find the target. Utility Model Content

[0003] In view of the above analysis, the embodiment of the utility model aims to provide a fixing device for a radio frequency puncture needle to solve the technical problem that during radio frequency puncture treatment under ultrasound guidance, multiple people are required to operate after a successful puncture, which often causes the puncture needle to change position.

[0004] The purpose of this utility model is mainly achieved through the following technical solutions:

[0005] A fixing device for a radio frequency puncture needle comprises a chassis, a moving part, a driving part and an adhesive part;

[0006] The bottom plane of the chassis is the reference plane, and the chassis includes a centering hole and a slide rail;

[0007] The centering hole is located at the center of one side of the chassis. The centering hole is a through hole with an opening. The centering hole is used to coincide with the insertion point of the puncture needle to locate the fixing position of the fixing device of the radio frequency puncture needle on the skin;

[0008] The slide rail is located on the upper surface of the chassis and is parallel to the reference plane. The slide rail is used to constrain the moving direction of the moving parts.

[0009] The moving part is movably connected to the chassis, and the moving part includes a slider and a fixing part;

[0010] The slider is located at the lower part of the moving part and matches with the slide rail, and the slider can constrain the moving part to slide on the chassis along the direction of the slide rail;

[0011] The fixing member is located above the slider and has a fixed inclination angle relative to the reference plane. The multiple fixing members are evenly distributed along the direction of the slider, and the fixed inclination angle increases or decreases along the distribution direction, so that the fixing member can match and fix needle bodies with different inclinations.

[0012] The driving component is located at one side of the moving component and is used to apply a force to the moving component along the moving direction;

[0013] The adhesive component is located on the bottom surface of the chassis and is used for bonding and fixing with the skin.

[0014] Furthermore, the chassis is a semicircular disk, and the centering hole is opened at the center of the chassis.

[0015] Furthermore, the slide rail is an arc-shaped slide groove surrounding the centering hole.

[0016] Furthermore, the slider is arc-shaped, and a plurality of fixing members are evenly distributed along the circumferential direction of the slider.

[0017] Furthermore, a plurality of vertices of fixed inclination angles are located in the centering hole.

[0018] Furthermore, the driving component is a protrusion fixed on the outer side of the circumference of the moving component.

[0019] Further, the fixed inclination angle is between 15° and 80°.

[0020] Further, a fixing member with a fixed inclination angle of 15° is located at the center of the moving part.

[0021] Furthermore, the slide rail and the slider are both in the shape of long strips, and a plurality of fixing members are evenly distributed along the length direction of the slider.

[0022] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0023] (1) The embodiments of the present invention, by providing a plurality of fixing members with different fixed inclination angles, can match the angle and position of the puncture needle, thereby fixing the puncture needle at the angle of successful puncture, thereby preventing the puncture needle from changing position during subsequent medication or treatment, reducing the risk of needing to re-puncture due to movement of the needle body, and reducing the patient's pain.

[0024] (2) In the embodiment of the utility model, by providing a movable part that can slide on the chassis, the physician can easily operate the fixator and quickly match the fixator with the puncture needle.

[0025] (3) In the embodiment of the utility model, the fixing inclination angles of the plurality of fixing members are increased or decreased along the distribution direction, thereby improving the matching degree with the inclination angle of the puncture needle and reducing the position change of the puncture needle when it is fixed.

[0026] (4) The embodiment of the utility model provides a centering hole to facilitate the physician to determine the fixing position of the puncture needle fixing device on the skin, thereby improving the matching accuracy between the fixing member and the puncture needle.

[0027] (5) The embodiments of the present invention can reduce the radial force on the slide rail by providing a driving component, thereby preventing the chassis from causing the skin to vibrate.

[0028] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the following content, and some advantages can be obvious from the description or understood by implementing the present invention. The purpose and other advantages of the present invention can be achieved and obtained through the contents specifically pointed out in the text and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. In the entire drawings, the same reference symbols represent the same components.

[0030] Figure 1 This is one of the structural schematic diagrams of the fixing device of the radiofrequency puncture needle of the specific embodiment 1;

[0031] Figure 2 This is a second structural schematic diagram of the fixing device of the radio frequency puncture needle of the specific embodiment 1;

[0032] Figure 3 It is a top view of the fixing device of the radio frequency puncture needle of specific embodiment 1;

[0033] Figure 4 It is a schematic diagram of the structure of the fixing device of the radio frequency puncture needle of specific embodiment 2.

[0034] Reference numerals:

[0035] 1- chassis; 11- centering hole; 111- opening; 12- slide rail; 2- moving part; 21- slider; 22- fixing part; 3- driving part; 31- convex tooth; 32- gear; 4- pasting part. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0037] Example 1

[0038] A specific embodiment of the utility model is as follows Figure 1As shown, a fixing device for a radio frequency puncture needle is provided, comprising a chassis 1, a moving part 2, a driving part 3 and an adhesive part 4. The moving part 2 is slidably mounted on the chassis 1, the adhesive part is located at the bottom of the chassis 1, and is used to adhesively fix the chassis 1 to the skin, and the moving part 2 comprises a plurality of fixing parts 22 with different fixed inclination angles. After successful puncture, the moving part 2 is slid on the chassis 1 by the driving part 3, so that a fixing part 22 can be matched with the angle and position of the puncture needle, thereby fixing the puncture needle on the matching fixing part 22, so as to prevent the radio frequency puncture needle from changing position during subsequent medication or treatment, reduce the risk of re-puncture due to needle movement, and reduce the pain of the patient.

[0039] The bottom plane of the chassis 1 is the reference plane. Preferably, the chassis 1 is a semicircular or fan-shaped disk. According to the model and the length of the radiofrequency puncture needle, the radius of the chassis 1 is preferably 30-40 cm. The chassis 1 includes a centering hole 11 and a slide rail 12. The centering hole 11 is located at the center of the chassis 1 and is a through hole with an opening 111 on one side. The centering hole 11 is used to confirm that the center of the chassis 1 coincides with the insertion point of the puncture needle, so as to position the chassis 1 and fix it on the skin. The function of the opening 111 is to enable the circular hole of the centering hole 11 to be able to fit over the periphery of the insertion point of the puncture needle on the skin.

[0040] Preferably, the slide rail 12 is a rail parallel to the reference plane, and is a groove, convex strip or other sliding rail located on the upper surface of the chassis 1. The slide rail 12 is used to constrain the moving direction of the moving part 2. Optionally, the slide rail 12 is arc-shaped or linear. When the puncture site is a small area such as the hand, it is preferred to use an arc-shaped slide rail 12, which can reduce the size of the chassis and the moving part; when the puncture site is a large area such as the back, it is preferred to use a long strip slide rail 12, which can provide more fixed space for the moving part.

[0041] It should be noted that the arc-shaped slide rail 12 surrounds the periphery of the centering hole 11 to constrain the moving part 2 to slide around the centering hole 11. The long strip slide rail 12 needs to be perpendicular to the symmetry plane of the chassis 1 to constrain the moving part 2 to slide in a direction perpendicular to the symmetry plane of the chassis 1.

[0042] The moving part 2 includes a slider 21 and a fixing part 22. The slider 21 is located at the lower part of the moving part 2 and is an arc-shaped or long strip-shaped part matching the slide rail 12, and can constrain the moving part 2 to slide on the chassis 1 along the direction of the slide rail 12.

[0043] The fixing member 22 is located above the slider 21, and has a fixed inclination angle relative to the reference plane. Preferably, the fixing member 22 is a linear slot, which can clamp the needle body of the puncture needle, thereby fixing the puncture needle after successful puncture, keeping the position and inclination of the puncture needle unchanged, so that the physician can complete subsequent medication or treatment alone.

[0044] Furthermore, the moving component 2 includes a plurality of fixing members 22, which are evenly distributed along the direction of the slider 21, and the fixing angles of the plurality of fixing members 22 increase or decrease along the array direction, so that the fixing members 22 can match and fix needles with different inclinations.

[0045] It should be noted that, in order to ensure that the position and angle of the card slot match the puncture needle, when the slide rail 12 and the slider 21 are arc-shaped, multiple card slots are evenly distributed along the circumferential direction of the slider 21, and the intersection of the center extension line of each card slot and the reference plane is located in the centering hole 11. When the slide rail 12 and the slider 21 are long strips, multiple card slots are evenly distributed along the length direction of the slider 21, and the intersection of the center extension line of each card slot and the reference plane is on the same straight line, which is parallel to the center line of the slider 21 and intersects with the center line of the centering hole 11.

[0046] The method of using the fixing device of the radio frequency puncture needle of this embodiment is as follows: when the doctor needs to perform subsequent operations after successful puncture, first place the fixing device of the radio frequency puncture needle under the needle body, align the opening 111 of the centering hole 11 with the needle insertion point, and then make the needle insertion point coincide with the axis of the centering hole 11, tear off the sticker of the adhesive component 4, stick the chassis 1 on the skin, and fix the fixing device of the radio frequency puncture needle on the skin. At this time, the reference plane of the fixed inclination angle is the plane of the skin at the puncture site. Then, slide the moving component 2, and when the fixed inclination angle of the card slot located directly below the needle body is closest to the inclination angle of the puncture needle, press the needle body into the card slot, so that the position and angle of the puncture needle are fixed in the best state, ensuring the accuracy of the subsequent medication or treatment position, and reducing the occurrence of repeated punctures.

[0047] Further, such as Figure 2 , Figure 3 As shown, in order to make the movable part 2 easy to slide, the puncture needle fixing device also includes a driving member 3. The driving member 3 of this embodiment is a protrusion fixed on the outer periphery of the movable part 2. Preferably, the protrusion is threaded or clamped with the movable part 2, which can facilitate the doctor to pinch the paddle and apply force to the movable part 2 along the moving direction, thereby preventing the chassis 1 from moving on the skin.

[0048] In order to improve the matching degree between the fixed inclination angle of the card slot and the optimal inclination of the puncture needle, the range of the fixed inclination angle is set between 10° and 80°, and the fixed inclination angles of adjacent card slots differ by 10°.

[0049] Preferably, considering that the needle body needs to be fixed most during superficial puncture, in order to reduce the movement range of the moving part 2, a slot with a minimum inclination of 10° is set at the center of the fixing part 22, and the inclinations of the slots on both sides of the center increase from 15° and 20° respectively along the array direction. When fixing the puncture needle fixing device, it is only necessary to place the central slot of the device below the puncture needle, and then pull the moving part 2 to both sides until the slot with the fixed inclination closest to the inclination of the needle body is matched.

[0050] Example 2

[0051] like Figure 4 As shown, the difference between this embodiment and embodiment 1 is that, in the puncture needle fixing device provided in this embodiment, the driving member 3 includes a convex tooth 31 and a gear 32. Specifically, a plurality of vertical convex teeth 31 are evenly distributed on the periphery of the moving part 2, and the gear 32 is fixed on the periphery of the chassis 1 and cooperates with the plurality of convex teeth 31.

[0052] Since the distance between the slots is relatively close, especially the slots distributed in a circle, the distance required to move when matching the fixed inclination angle is very small. In order to easily match the closest inclination angle, this embodiment provides a convex tooth 31 and a gear 32, and utilizes the principle of a small gear driving a large gear, so that the doctor does not have to be careful to perform fine operations, and can move the movable component 2 slightly, thereby matching the slot closest to the fixed inclination angle and implementing ideal fixation of the puncture needle.

[0053] Furthermore, the gear 32 is arranged at the center of the outer periphery of the chassis 1. Since the center line of the chassis 1 is located below the puncture needle when the puncture needle positioner is fixed, the doctor can easily rotate the gear 32 with the middle finger while holding the needle handle with the thumb and index finger, so as to drive the moving part 2 to move, which saves manpower and time and reduces the probability of errors caused by multiple operators.

[0054] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A fixing device for a radiofrequency puncture needle, characterized in that: It comprises a chassis (1), a moving part (2), a driving part (3) and an adhesive part (4); The bottom plane of the chassis (1) is a reference plane, and the chassis (1) comprises a centering hole (11) and a slide rail (12); The centering hole (11) is located at the center of one side of the base plate (1); the centering hole (11) is a through hole with an opening (111); the centering hole (11) is used to coincide with the insertion point of the puncture needle to locate the fixing position of the fixing device of the radio frequency puncture needle on the skin; The slide rail (12) is located on the upper surface of the chassis (1) and is parallel to the reference plane, and the slide rail (12) is used to constrain the moving direction of the moving component (2); The movable component (2) is movably connected to the chassis (1), and the movable component (2) comprises a sliding block (21) and a fixing member (22); The slider (21) is located at the bottom of the moving component (2) and matches the slide rail (12), and the slider (21) can constrain the moving component (2) to slide on the chassis (1) along the direction of the slide rail (12); The fixing member (22) is located above the slider (21) and has a fixed inclination angle relative to the reference plane. A plurality of the fixing members (22) are evenly distributed along the direction of the slider (21). The fixed inclination angle increases or decreases along the distribution direction, so that the fixing member (22) can match and fix needle bodies with different inclinations. The driving component (3) is located on one side of the moving component (2) and is used to apply a force to the moving component (2) along the moving direction; The adhesive component (4) is located on the bottom surface of the chassis (1) and is used for bonding and fixing with the skin.

2. The fixing device for radiofrequency puncture needle according to claim 1, characterized in that: The chassis (1) is a semicircular disk, and the centering hole (11) is opened at the center of the chassis (1).

3. The fixing device for radiofrequency puncture needle according to claim 2, characterized in that: The slide rail (12) is an arc-shaped slide groove surrounding the centering hole (11).

4. The fixing device for radiofrequency puncture needle according to claim 3, characterized in that: The sliding block (21) is in an arc shape, and the plurality of fixing members (22) are evenly distributed along the circumferential direction of the sliding block (21).

5. The fixing device for radiofrequency puncture needle according to claim 4, characterized in that: A plurality of vertices of the fixed inclination angles are located in the centering hole (11).

6. The fixing device for radiofrequency puncture needle according to claim 5, characterized in that: The driving component (3) is a convex block fixed on the outer side of the circumference of the moving component (2).

7. The fixing device for radio frequency puncture needle according to claim 6, characterized in that: The fixed inclination angle is between 15° and 80°.

8. The fixing device for radio frequency puncture needle according to claim 7, characterized in that: The fixing member (22) having a fixed inclination angle of 15° is located at the center of the moving part (2).

9. The fixing device for radiofrequency puncture needle according to claim 1, characterized in that: The slide rail (12) and the slider (21) are both in the shape of long strips, and a plurality of fixing members (22) are evenly distributed along the length direction of the slider.

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