Puncture needle guiding device

Abstract

The utility model relates to a puncture needle guiding device, belongs to the technical field of medical supplies, and solves the technical problem that a common puncture needle guiding device interferes with a handle of a radio frequency needle. The puncture needle guiding device comprises a base, a guiding part, a supporting part, a clamping part, a first locking part, a first ruler and a second ruler. The guide part comprises a guide slide way and a guide hole; the clamping part comprises a positioning end, a clamping end and a second locking part; the first locking part can fix an included angle between the guide part and the base; the second locking part can lock the clamping part on the guide slide way; the first ruler is used for calibrating the angle between the base and the guide part and used for calibrating the position of the clamping part. According to the embodiment of the utility model, the puncture needle can be guided to stably and accurately puncture along the preset angle, position and depth, so that the operation efficiency and success rate are improved, and the risk of operative complications is reduced.

Description

Technical Field

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

[0002] The puncture needle is a commonly used medical device for medical examination and treatment. During the puncture operation, in order to help the doctor accurately and stably grasp the position and direction of the puncture needle and improve the success rate of the operation, a puncture needle guide is often used in conjunction with the puncture. Due to different uses, locations and operation methods, puncture needles can be divided into many types and models. The radio frequency needle is a special puncture needle used in conjunction with the radio frequency therapeutic device. The handle shape, operation depth and operation steps are different from ordinary puncture needles. Especially during radio frequency puncture, most of the needle body will enter the skin, and the guide of the ordinary puncture needle will interfere with the handle of the radio frequency needle and cannot meet the operation requirements of the radio frequency needle. Summary of the invention

[0003] In view of the above analysis, the embodiment of the utility model aims to provide a puncture needle guide to solve the technical problem that the guide of a common puncture needle may interfere with the handle of a radio frequency needle.

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

[0005] A puncture needle guide comprises a base, a guide component, a support component, a clamping component and a first locking component;

[0006] One end of the guide component is rotatably connected to the base, and the other end of the guide component is a free end. The guide component includes a guide slideway, which is a straight open slideway located on one side of the guide component and can guide the sliding direction of the clamping component.

[0007] The supporting component is located between the base and the guiding component and is capable of supporting the free end of the guiding component;

[0008] The first locking member is used to fix the relative position of the free end of the guide member and the support member to form a desired angle between the guide member and the base;

[0009] The clamping component includes a positioning end, a clamping end and a second locking component. The positioning end is located at one end of the clamping component, and the positioning end is slidably connected to the guide slide. The clamping end is located at the other end of the clamping component, and can clamp the needle handle of the puncture needle and make the needle body parallel to the guide slide. The second locking component is located between the positioning end and the clamping end, and the second locking component is used to lock the clamping component on the guide slide.

[0010] The guide component also includes a guide hole, which is used to limit the direction of the needle. The guide hole is located at one end of the guide component close to the base, and the central axis of the guide hole coincides with the central axis of the clamping end.

[0011] Furthermore, the supporting component is an arc-shaped component, and one end of the supporting component is fixed on the base.

[0012] Furthermore, the guide component also includes a first connection portion, which is located at the other end of the guide component, and the other end of the guide component is slidably connected to the support component through the first connection portion.

[0013] Furthermore, the first locking component can lock the free end of the guide component on the supporting component.

[0014] Furthermore, it also includes a first ruler, which is located on one side of the supporting component and is used to calibrate the angle between the base and the guiding component.

[0015] Furthermore, it also includes a second scale, which is located on the outer surface of the guide slide and is used to calibrate the position of the clamping component.

[0016] Furthermore, the supporting component is a long strip-shaped component, and one end of the supporting component is rotatably connected to the guiding component.

[0017] Furthermore, the base includes a receiving groove, and the other end of the supporting component is slidably connected to the receiving groove, and the receiving groove can receive the supporting component so that the guiding component and the base overlap.

[0018] Furthermore, the first locking component can fix the other end of the supporting component on the base.

[0019] Furthermore, the first locking component is a cam locking structure or an elastic clamping structure.

[0020] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0021] (1) The embodiments of the utility model can guide the puncture needle along a preset angle, position and depth to stably and accurately perform puncture, thereby improving the efficiency and success rate of the operation, reducing the risk of surgical complications, and shortening the recovery period of the operation.

[0022] (2) The embodiment of the utility model is provided with a slidable clamping component, which can clamp various types and models of puncture needle handles, thereby effectively controlling the puncture direction and stability.

[0023] (3) The embodiment of the utility model sets the guide hole at a position close to the base, so that the guide hole can guide the needle head and the needle body without interfering with the needle handle, thus meeting the characteristics of the radiofrequency puncture needle operation.

[0024] (4) The embodiment of the utility model can fix the position of the clamping component at any time by providing a locking component on the clamping component, thereby facilitating the installation and operation of the puncture needle.

[0025] (5) In the embodiment of the present invention, the guide slide is arranged on the side of the guide component, so that there is no obstruction around the clamping end, providing sufficient space for the physician to hold and operate the clamping end.

[0026] (6) The embodiments of the present invention enable the physician to control the puncture accuracy based on two parameters: puncture angle and puncture depth, by setting the first scale and the second scale.

[0027] (7) The embodiments of the present invention greatly reduce the volume of the product by providing a foldable support component, save storage space, facilitate the storage and use of production logistics, equipment storage and medical applications, and greatly reduce the breakage rate of the product.

[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 considered to be limiting of the present invention. In the entire drawings, the same reference symbols represent the same components;

[0030] Figure 1 is a structural schematic diagram of a puncture needle guide of specific embodiment 1;

[0031] Figure 2 is a structural schematic diagram of a clamping component in a specific embodiment;

[0032] Figure 3 It is a schematic diagram of the structure of the puncture needle guide of specific embodiment 2.

[0033] Reference numerals:

[0034] 1-base; 11-accommodating groove; 2-guide component; 21-first connecting part; 22-guide slide; 23-guide hole; 3-support component; 31-rotating end; 32-pointer end; 4-clamping component; 41-positioning end; 42-clamping end; 421-limiting protrusion; 43-second locking component; 5-first locking component; 6-first scale; 7-second scale. DETAILED DESCRIPTION

[0035] 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.

[0036] Example 1

[0037] A specific embodiment of the utility model is as follows Figure 1 As shown, the utility model provides a puncture needle guide, which can be made of medical plastic, medical metal material or other medical molding materials, and includes a base 1, a guide component 2, a support component 3 and a clamping component 4. The guide of this embodiment can be used for ordinary puncture needles and radiofrequency needles, and can guide the puncture needle along a preset angle, position and depth to stably and accurately perform puncture, thereby improving the efficiency and success rate of the operation, reducing the risk of surgical complications, and shortening the recovery period of the operation.

[0038] The bottom of the base 1 is a fixed plane for fitting with the patient's skin during use. In order to increase stability, a medical tape can also be provided below the base 1. Optionally, the base 1 is a rectangular plate, and other shapes can also be selected according to the characteristics of the use site.

[0039] The guide component 2 is a rectangular plate with a shape and size similar to that of the base 1. A short rectangular side of the base 1 is rotatably connected to a short rectangular side of the guide component 2, and the rotation axis is parallel to the short sides connected between the two, so that the guide component 2 can rotate around the rotation axis. Optionally, the rotation axis is set on the base 1 or the guide component 2, and the guide component 2 and the base 1 can also be integrally formed into a rotatable structure. The guide component 2 can rotate on the base 1 at an angle between 0 and 90 degrees. When in use, the doctor can set the angle between the guide component 2 and the base 1 according to imaging data or experience, so as to guide the puncture needle to successfully be in the desired position according to the preset optimal angle, and implement a stable and accurate puncture operation or treatment.

[0040] The support component 3 is used to support the base 1 and the free ends of the guide component 2. In order to more intuitively determine the angle between the guide component 2 and the base 1, the support component 3 is optionally an arc-shaped plate, one end of which is fixed to the end of the base 1 away from the rotation axis, the plate surface of the arc-shaped plate is perpendicular to the fixed plane of the base 1, and the center of the arc coincides with the rotation axis of the guide component 2. The free end of the guide component 2 is slidably connected to the support component 3. Optionally, the free end of the guide component 2 is provided with a first connecting portion 21, which is a square through groove matching the outer surface of the support component 3. The other end of the support component 3 can penetrate the square through groove, so that when the guide component 2 rotates, the free end can slide outside the support component 3. The first connecting portion 21 can also be a groove or other structure.

[0041] A first scale 6 is provided on the outer surface of the support component 3, and the first scale 6 is an angle scale. When the guide component 2 rotates, the value of the edge line of the first connecting portion 21 at the position of the first scale 6 is the angle between the guide component 2 and the base 1, which enables the doctor to intuitively and conveniently determine the angle of the guide component 2.

[0042] In order to fix the guide component 2 at a preset angle, the guide of this embodiment also includes a first locking component 5. Optionally, the first locking component 5 is a locking bolt, which matches the bolt hole on the guide component 2 and can lock the guide component 2 on the supporting component 3 so that the guide component 2 will no longer rotate downward, thereby allowing the guide component 2 to always stay at the preset optimal angle during the puncture process, so as to guide the puncture needle to perform puncture along the preset angle.

[0043] Furthermore, in order to keep the angle of the puncture needle stable during the puncture process, a guide slide 22 is provided on one side of the guide component 2. The guide slide 22 is a linear slide, the center line of which intersects the rotation axis of the guide component 2 perpendicularly and opens at the side of the guide component 2. Since the angle between the linear slide and the fixed plane is consistent with the angle calibrated by the first scale 6, the puncture needle on the clamping component 4 can be guided to move along a preset angle for needle insertion.

[0044] like Figure 2 As shown, the clamping part 4 includes a positioning end 41 and a clamping end 42. The positioning end 41 is located at one end of the clamping part 4 and is a slider that matches the linear slide groove; the clamping end 42 is located at the other end of the clamping part 4 and is used to clamp and fix the needle handle of the puncture needle. When in use, the doctor can hold the clamping end 42 that fixes the needle handle and slide the clamping part 4 along the guide slide 22 toward the base 1 to ensure the stability of the puncture needle angle during the puncture process; in addition, since the guide slide 22 is located on the side of the guide part 2, there is no obstruction around the clamping end 42, which provides sufficient space for the doctor to hold and operate the clamping end 42.

[0045] Optionally, the clamping end 42 is an elastic clamping component. In order to simplify the structure, this embodiment adopts a groove with elastic sheets on both sides, and the width of the open end of the groove is narrower than the width of the bottom of the groove. When in use, the handle of the puncture needle is pressed into the groove from the opening of the groove. Due to the elastic deformation on both sides of the open end of the groove, pressure is applied to both sides of the handle, so that the puncture needle is firmly clamped on the clamping component 4; since the two sides of the groove are symmetrical and the center line is parallel to the center line of the guide slide 22, the needle body of the puncture needle can also be parallel to the guide slide 22. Since the two sides of the open end of the groove are elastic sheets, it can be used to clamp the handles of puncture needles of various specifications. The clamping end 42 can also be clamped by tightening bolts, spring buckles or other methods.

[0046] In order to be able to quickly and accurately locate the state and position of the needle handle when it is clamped, a limiting protrusion 421 is provided on the side of the groove close to the base 1. The limiting protrusion 421 is perpendicular to the center line of the groove, and a through groove consistent with the opening direction of the groove is provided in the middle; when the needle handle is pressed into the groove, the plane on the needle handle can be matched with the limiting protrusion 421 for positioning, so that the needle body is parallel to the center line of the groove, thereby ensuring that the needle body is parallel to the guide slide 22.

[0047] Furthermore, in order to more accurately ensure the direction of the needle body of the puncture needle, a guide hole 23 is also provided on the guide component 2. The guide hole 23 is located at one end of the guide component 2 close to the base 1. The center of the guide hole 23 coincides with the central axis of the clamping end 42, which can guide the needle head of the puncture needle, thereby further ensuring that the angle of the puncture needle is consistent with the preset optimal angle, and avoiding the inclination of the needle body relative to the guide slide 22 after clamping.

[0048] It should be noted that the guide hole needs to be provided with an opening so that the guide can be withdrawn after the puncture is completed.

[0049] More importantly, when using a radiofrequency puncture needle for surgery or treatment, it is usually necessary to insert most of the needle body into the skin, so the distance between the needle handle and the skin will be relatively close. In this embodiment, since the guide hole 23 is set at a position close to the base 1, the guide hole 23 can guide the needle head and the needle body without interfering with the needle handle, thereby meeting the characteristics of the radiofrequency puncture needle operation.

[0050] Preferably, in order to intuitively determine the depth of needle insertion, a second scale 7 is provided on the outside of the guide slide 22, and the second scale 7 is parallel to the guide slide 22. By reading the numerical change of the position of the clamping component 4 on the second scale 7, the length of the puncture needle penetrating the skin can be determined.

[0051] Furthermore, the clamping component 4 also includes a second locking component 43, which is located between the positioning end 41 and the clamping end 42 and is used to lock the clamping component 4 on the guide slide 22; preferably, the second locking component 43 is a screw lock component, and a locking stud is provided between the positioning end 41 and the clamping end 42, and a locking nut is provided on the locking stud. The doctor can place the clamping component 4 in a position suitable for the puncture needle of the specification according to the scale of the second ruler 7, and then rotate the locking nut to fix the clamping component 4 on the guide slide 22, so as to facilitate the fixing of the needle handle of the puncture needle on the clamping component 4, and at the same time, the needle head of the puncture needle of this model can be just located at the position of the guide hole 23. In order to facilitate locking, the outer diameter of the locking nut is larger and is provided with anti-slip lines, which can facilitate the doctor to perform convenient and reliable operation with one hand. The clamping component 4 can also be temporarily fixed as needed during the puncture process.

[0052] Example 2

[0053] like Figure 3 As shown, the difference between this embodiment and embodiment 1 is that, considering that the guide of embodiment 1 occupies a larger space, the support component 3 of this embodiment is configured as a strip-shaped component, one end of the support component 3 is a rotating end 31, which is rotatably connected to the bottom of the guide component 2; the other end is a pointer end 32, which is slidably connected to the base 1, and a receiving groove 11 is provided on the base 1, and the receiving groove 11 matches the outer surface of the support component 3, and the second scale 7 is provided on the receiving groove 11, and the first locking component 5 can fix the pointer end 32 of the support component 3 on the base 1.

[0054] When the angle between the guide component 2 and the base 1 is 0, the support component 3 can be located in the receiving groove 11, so that the guide component 2 and the base 1 can overlap; when the free end of the guide component 2 is lifted and the guide component 2 is rotated, the rotating end 31 of the support component 3 also moves away from the base 1, and the pointer end 32 slides along the receiving groove 11 toward the rotating axis of the guide component 2. When the scale indicated by the pointer end 32 on the second scale 7 reaches the preset angle value, the first locking component 5 can be locked to fix the pointer end 32 of the support component 3 at the preset scale position, so that the guide slide 22 is fixed at the angle required for puncture, so that the subsequent puncture needle puncture has accurate and stable guiding conditions.

[0055] The support component 3 of this embodiment can overlap with the guide component 2 and the base 1, which greatly reduces the volume of the product, saves storage space, and facilitates storage and use in production logistics, equipment storage, and medical applications.

[0056] Optionally, the first locking component 5 is arranged on the pointer end 32, and can slide along with the pointer end 32 when in use, or the first locking component 5 can be directly pushed to rotate the guide component 2, which is simple and convenient to operate; the first locking component 5 can also be arranged on the receiving groove 11, and can slide on the receiving groove 11 alone. Optionally, the first locking component 5 is a cam locking structure, an elastic clamping structure or other locking structures.

[0057] 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 puncture needle guide, characterized in that: It comprises a base (1), a guide component (2), a support component (3), a clamping component (4) and a first locking component (5); One end of the guide component (2) is rotatably connected to the base (1), and the other end of the guide component (2) is a free end. The guide component (2) comprises a guide slide (22), and the guide slide (22) is a straight open slide groove located on one side of the guide component (2) and can guide the sliding direction of the clamping component (4); The supporting component (3) is located between the base (1) and the guiding component (2), and is capable of supporting the free end of the guiding component (2); The first locking component (5) is used to fix the relative position of the free end of the guide component (2) and the support component (3) to form a desired angle between the guide component (2) and the base (1); The clamping component (4) comprises a positioning end (41), a clamping end (42) and a second locking component (43); the positioning end (41) is located at one end of the clamping component (4); the positioning end (41) is slidably connected to the guide slide (22); the clamping end (42) is located at the other end of the clamping component (4) and is capable of clamping the needle handle of the puncture needle and making the needle body parallel to the guide slide (22); the second locking component (43) is located between the positioning end (41) and the clamping end (42); the second locking component (43) is used to lock the clamping component (4) on the guide slide (22); The guide component (2) further comprises a guide hole (23), wherein the guide hole (23) is used to limit the direction of the needle, and the guide hole (23) is located at one end of the guide component (2) close to the base (1), and the central axis of the guide hole (23) coincides with the central axis of the clamping end (42).

2. The puncture needle guide according to claim 1, characterized in that: The support component (3) is an arc-shaped component, and one end of the support component (3) is fixed on the base (1).

3. The puncture needle guide according to claim 2, characterized in that: The guide component (2) further comprises a first connection portion (21), wherein the first connection portion (21) is located at the other end of the guide component (2), and the other end of the guide component (2) is slidably connected to the support component (3) via the first connection portion (21).

4. The puncture needle guide according to claim 3, characterized in that: The first locking component (5) is capable of locking the free end of the guide component (2) on the supporting component (3).

5. The puncture needle guide according to claim 4, characterized in that: It also comprises a first scale (6), which is located on one side of the supporting component (3) and is used to mark the angle between the base (1) and the guiding component (2).

6. The puncture needle guide according to claim 5, characterized in that: It also includes a second scale (7), which is located on the outer surface of the guide slide (22) and is used to mark the position of the clamping component (4).

7. The puncture needle guide according to claim 1, characterized in that: The supporting component (3) is a long strip-shaped component, and one end of the supporting component (3) is rotatably connected to the guiding component (2).

8. The puncture needle guide according to claim 7, characterized in that: The base (1) comprises a receiving groove (11), the other end of the supporting component (3) is slidably connected to the receiving groove (11), and the receiving groove (11) can receive the supporting component (3) so that the guiding component (2) and the base (1) overlap.

9. The puncture needle guide according to claim 8, characterized in that: The first locking component (5) is capable of fixing the other end of the supporting component (3) on the base (1).

10. The puncture needle guide according to claim 9, characterized in that: The first locking component (5) is a cam locking structure or an elastic clamping structure.

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