Small needle knife convenient to operate

Abstract

The small needle knife convenient to operate comprises a grab handle and a knife head, a mounting column is arranged at the end, close to the knife head, of the grab handle, the end, away from a knife edge, of the knife head is arranged in the mounting column, the cross section of the grab handle is in a gourd shape, and a plurality of first anti-skid lines and a plurality of second anti-skid lines are arranged on the opposite end faces of the grab handle in the width direction. The first anti-skid patterns and the second anti-skid patterns are arranged on the two sides of the grab handle in the length direction respectively, the friction force between the hand of a doctor and the grab handle is effectively increased through the arrangement of the first anti-skid patterns and the second anti-skid patterns, and the phenomenon that the grab handle slides during operation is avoided. The small needle knife has the advantages that a doctor can hold the small needle knife conveniently, and the effect that the small needle knife loosens diseased tissue is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical devices, in particular to a small needle knife convenient to operate. BACKGROUND

[0002] The small needle knife is similar to the acupuncture needle in shape, but the tip of the small needle knife head has a narrow blade, which can play the dual functions of acupuncture and knife cutting. It is a new type of traditional Chinese medical device formed on the basis of modern Western surgical treatment and traditional Chinese acupuncture treatment.

[0003] The small needle knife treatment is a closed release surgery between surgical methods and non-surgical treatment. It is formed on the basis of the incision surgery method combined with acupuncture method. The operation feature of the small needle knife treatment is to enter the treatment site of the human body by acupuncture method, and to separate and release the adherent tissue fibers by spading, peeling and swinging to achieve the purpose of relieving pain and curing diseases.

[0004] However, the conventional small needle knife handle is very smooth. Although the smooth handle can reduce the pressure on the fingers, the doctor needs to constantly change the penetration angle and force of the small needle knife during operation. Since the handle is smooth and lacks friction, the handle is prone to sliding during operation, and the doctor is difficult to accurately control the penetration angle and force of the small needle knife by feeling, thereby leading to over-release or insufficient release of the lesion tissue, affecting the treatment effect, and there are obvious deficiencies. CONTENT OF THE INVENTION

[0005] In order to facilitate the doctor to hold the small needle knife and improve the release effect of the small needle knife on the lesion tissue, the present application provides a small needle knife convenient to operate.

[0006] The small needle knife convenient to operate provided by the present application adopts the following technical scheme:

[0007] The small needle knife convenient to operate comprises a handle and a head, the end of the handle close to the head is provided with a mounting column, the end of the head away from the blade is arranged in the mounting column, the cross section of the handle is gourd-shaped, a plurality of first anti-skid lines and a plurality of second anti-skid lines are arranged on the opposite end faces of the handle along the width direction, and the first anti-skid lines and the second anti-skid lines are arranged on the two sides of the handle along the length direction respectively.

[0008] By adopting the above technical scheme, the first anti-skid lines and the second anti-skid lines can provide effective anti-skid function in different operation directions, effectively increase the friction between the doctor's hand and the handle, avoid the sliding phenomenon of the handle during operation, and enable the doctor to more accurately control the penetration angle and force of the small needle knife when releasing the lesion tissue, thereby improving the release effect of the small needle knife on the lesion tissue.

[0009] Optionally, the handle is provided with a positioning protrusion on each of the opposite end surfaces in the width direction, the positioning protrusion has an elliptical cross section, and the positioning protrusion is arranged between the first anti-skid lines and the second anti-skid lines.

[0010] By adopting the above technical scheme, when the small needle knife slips accidentally during operation, the finger can immediately perceive the change in the opposite position of the positioning protrusion, so as to timely adjust the operation, and avoid damage to the surrounding normal tissues due to the deviation of the knife head from the predetermined treatment site caused by the slip.

[0011] Optionally, the handle is provided with an abutting block on the end surface close to the knife head, and an abutting surface of the abutting block is in the form of a circular arc.

[0012] By adopting the above technical scheme, when the doctor holds the handle to drive the knife head to operate, the circular arc surface of the abutting block abuts against the end of the finger, thereby providing a stable support point for the finger, effectively dispersing the pressure borne by the finger during operation, and improving the comfort of the doctor when using the small needle knife.

[0013] Optionally, the first anti-skid lines and the second anti-skid lines are in the form of a circular arc, a plurality of the first anti-skid lines are distributed in a radial manner around the same center in a direction away from the knife head, and a plurality of the second anti-skid lines are distributed in a radial manner around the same center in a direction close to the knife head.

[0014] By adopting the above technical scheme, the first anti-skid lines and the second anti-skid lines in the form of a circular arc are more in line with the holding action curve of the finger, which can further improve the fit and friction between the hand of the doctor and the handle, thereby further facilitating the doctor to hold the small needle knife.

[0015] Optionally, the handle is provided with a rotating groove matched with the mounting column in rotation, an annular groove is formed in the inner side wall of the rotating groove, the mounting column is provided with a mounting ring matched with the annular groove in rotation, and the handle is provided with a driving cavity, and the driving cavity is provided with a driving assembly for driving the mounting column to rotate.

[0016] By adopting the above technical scheme, when the doctor needs to change the angle of the blade, the doctor drives the mounting column to rotate through the driving assembly, the mounting column drives the knife head to rotate, and the rotation of the mounting column is stopped when the blade is rotated to the required angle, so that the convenient change of the angle of the blade is realized, the doctor does not need to manually twist the entire small needle knife, the inaccuracy in operation caused by the shaking of the handle during manual twisting is avoided, and the movement of the mounting column during rotation is limited through the rotation matching of the annular groove and the mounting ring, thereby improving the stability of the blade during rotation adjustment.

[0017] Optionally, the driving assembly comprises a worm wheel coaxially arranged with the mounting column, a worm is rotationally arranged in the driving cavity and is in meshing arrangement with the worm wheel, one end of the worm extends out of the driving cavity and is coaxially arranged with a rotating wheel.

[0018] By adopting the above technical scheme, when the angle of the blade needs to be adjusted, the doctor rotates the worm through the rotating wheel, the worm drives the worm wheel to rotate, and the worm wheel drives the mounting column to rotate in the driving cavity, so that the angle of the blade is changed. At the same time, due to the self-locking property of the worm and the worm wheel, when the blade is rotated to the required angle, the blade is difficult to deviate or rotate easily due to external interference during the use of the small needle knife, thereby improving the stability of the small needle knife during use.

[0019] Optionally, the outer surface of the handle is provided with a circumferential scale mark, and the rotating wheel is coaxially and fixedly connected with a pointer corresponding to the scale mark.

[0020] By adopting the above technical scheme, during the process that the doctor rotates the blade through the driving assembly, the rotating wheel drives the pointer to rotate along the circumferential scale mark. At this time, the doctor can accurately know the angle of the blade through the scale position, so as to avoid the adverse effect on the treatment of the small needle knife due to the deviation of the rotating angle.

[0021] Optionally, the outer surface of the rotating wheel is provided with an anti-skid protrusion.

[0022] By adopting the above technical scheme, the anti-skid protrusion can effectively increase the friction between the fingers of the doctor and the outer surface of the rotating wheel, so that the fingers are not easy to slip, and the rotating angle, speed and rotating direction of the rotating wheel can be more accurately controlled, so that the blade can be adjusted according to the expected angle.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. The first and second anti-skid lines are arranged to effectively increase the friction between the fingers of the doctor and the handle, so that the handle is not easy to slip during operation, and the doctor can more accurately control the penetration angle and force of the small needle knife when the doctor releases the diseased tissue, thereby improving the releasing effect of the small needle knife on the diseased tissue.

[0025] 2. The positioning protrusion is arranged, and when holding the small needle knife, the doctor can judge whether the small needle knife slips through the relative position between the positioning protrusion and the fingers.

[0026] 3. The abutting block is arranged, the circular surface of the abutting block abuts with the end of the fingers to provide a stable support point for the fingers, effectively disperses the pressure borne by the fingers during operation, and improves the comfort of the doctor when using the small needle knife.

[0027] 4. The application sets the driving assembly, when encountering the need to change the angle of the blade, the doctor drives the installation column to rotate through the driving assembly, the installation column drives the knife head to rotate, and the rotation of the installation column is stopped when the blade rotates to the required angle. The convenient change of the angle of the blade is realized by such setting, and the doctor does not need to manually twist the whole needle knife, thereby avoiding the inaccuracy of operation caused by the shaking of the handle during manual twisting. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a structural schematic diagram of embodiment 1 of the application.

[0029] Figure 2 is a schematic diagram of the positioning protrusion in embodiment 2 of the application.

[0030] Figure 3 is a cross-sectional view of the handle in embodiment 3 of the application.

[0031] Mark 1, handle; 2, knife head; 3, installation column; 4, first anti-skid line; 5, second anti-skid line; 6, abutting block; 7, positioning protrusion; 8, rotating groove; 81, ring groove; 31, installation ring; 9, driving cavity; 10, driving assembly; 101, worm; 102, worm wheel; 103, rotating wheel; 1031, pointer; 1032, anti-skid protrusion; 11, circumferential scale mark. DETAILED DESCRIPTION

[0032] The following will be described in detail in combination with the accompanying Figures 1-3 The application will be further described in detail.

[0033] Embodiment 1

[0034] The embodiment of the application discloses a small needle knife with convenient operation.

[0035] Referring to Figure 1 A small needle knife with convenient operation includes a handle 1 and a knife head 2, the end of the handle 1 close to the knife head 2 is fixedly connected with an installation column 3, and the end of the knife head 2 away from the blade is fixedly installed in the installation column 3. The cross section of the handle 1 is in the shape of a calabash, and the curve modeling in the shape of a calabash can better fit the physiological structure of the doctor's hand, so that different fingers can be naturally distributed in the appropriate position when holding, and the overstretching and fatigue accumulation of the hand muscles are reduced.

[0036] Referring to Figure 1, the opposite end faces of the handle 1 in the width direction are each provided with a plurality of first anti-skid lines 4 and a plurality of second anti-skid lines 5, the first anti-skid lines 4 and the second anti-skid lines 5 are respectively arranged on the two sides of the handle 1 in the length direction, the first anti-skid lines 4 and the second anti-skid lines 5 are each in the shape of a circular arc, the design of the circular arc is more in line with the curve of the gripping action of the fingers, and the fit and the friction between the hand and the handle 1 can be further improved, the plurality of first anti-skid lines 4 are distributed in a radial manner around the same center and away from the blade head 2, and the plurality of second anti-skid lines 5 are distributed in a radial manner around the same center and close to the blade head 2.

[0037] The arrangement of the first anti-skid lines 4 and the second anti-skid lines 5 can provide effective anti-skid functions in different operation directions, effectively increase the friction between the hand of the doctor and the handle 1, avoid the sliding of the handle 1 during operation, and enable the doctor to more accurately control the penetration angle and the force of the small needle knife when the doctor releases the diseased tissue, thereby improving the release effect of the small needle knife on the diseased tissue.

[0038] With reference to Figure 1 The end face of the handle 1 close to the blade head 2 is fixedly connected with an abutting block 6, the abutting surface of the abutting block 6 is in the shape of a circular arc, when the doctor holds the handle 1 to drive the blade head 2 to operate, the circular arc surface of the abutting block 6 abuts against the end of the finger, thereby providing a stable support point for the finger, effectively dispersing the pressure borne by the finger during operation, and improving the comfort of the doctor when using the small needle knife.

[0039] The implementation principle of the small needle knife convenient to operate according to the embodiment of the present application is that, when the doctor uses the small needle knife, the first anti-skid lines 4 and the second anti-skid lines 5 can provide effective anti-skid functions in different operation directions, effectively increase the friction between the hand of the doctor and the handle 1, avoid the sliding of the handle 1 during operation, enable the doctor to more accurately control the penetration angle and the force of the small needle knife when the doctor releases the diseased tissue, and improve the release effect of the small needle knife on the diseased tissue.

[0040] Embodiment 2

[0041] With reference to Figure 2 The difference between the embodiment of the present application and the embodiment 1 is that the opposite end faces of the handle 1 in the width direction are each fixedly connected with a positioning protrusion 7, the cross section of the positioning protrusion 7 is in the shape of an ellipse, and the positioning protrusion 7 is arranged between the first anti-skid lines 4 and the second anti-skid lines 5.

[0042] The implementation principle of the embodiment 2 of the present application is that, when the small needle knife accidentally slips during operation, the finger can immediately perceive the change in the relative position of the positioning protrusion 7, thereby timely adjusting the operation, avoiding the damage to the surrounding normal tissue caused by the deviation of the blade head 2 from the predetermined treatment site due to the sliding.

[0043] Embodiment 3

[0044] With reference to Figure 3 The difference between the embodiment and the embodiment 1 is that the mounting column 3 is rotationally connected to the handle 1, the handle 1 is provided with a rotation groove 8 rotationally matched with the mounting column 3, the inner side wall of the rotation groove 8 is provided with a ring groove 81, the outer surface of the mounting column 3 is fixedly connected with a mounting ring 31 rotationally matched with the ring groove 81, and the end of the handle 1 close to the blade head 2 is provided with a driving cavity 9, and the driving cavity 9 is provided with a driving assembly 10 for driving the mounting column 3 to rotate.

[0045] With reference to Figure 3 The driving assembly 10 comprises a worm wheel 102 coaxially fixedly connected with the mounting column 3, and the driving cavity 9 is rotationally connected with a worm 101 meshingly arranged with the worm wheel 102, one end of the worm 101 extends out of the driving cavity 9 and is coaxially fixedly connected with a rotating wheel 103, the rotating wheel 103 is rotationally connected to the outer surface of the handle 1, and the outer surface of the rotating wheel 103 is fixedly connected with an anti-skid protrusion 1032, which effectively increases the friction between the fingers and the outer surface of the rotating wheel 103, so that the fingers are not easy to slip.

[0046] With reference to Figure 3 The outer surface of the handle 1 is provided with a circumferential scale mark 11 with the axis of the worm 101 as the center, and the rotating wheel 103 is coaxially fixedly connected with a pointer 1031 corresponding to the scale mark.

[0047] The implementation principle of the embodiment 3 is that when the blade angle needs to be changed, the doctor drives the worm 101 to rotate by rotating the rotating wheel 103, the worm 101 drives the worm wheel 102 to rotate, the worm wheel 102 drives the mounting column 3 to rotate in the driving cavity 9, and in the process of rotating the rotating wheel 103, the rotating wheel 103 drives the pointer 1031 to rotate at the circumferential scale mark 11, when the doctor observes that the blade head 2 is rotated to the required angle by the circumferential scale mark, the rotating wheel 103 is stopped, so that the blade angle is conveniently changed, and the doctor does not need to manually twist the entire needle knife, so that the operation is not inaccurate due to the shaking of the handle 1 when manually twisting, and the movement of the mounting column 3 during rotation is limited by the rotation matching of the ring groove 81 and the mounting ring 31, so that the stability of the blade during rotation adjustment is improved.

[0048] The above are the preferred embodiments of the application, which do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A small needle knife convenient to operate, comprising a handle (1) and a knife head (2), the handle (1) is provided with a mounting column (3) near the end of the knife head (2), and the end of the knife head (2) away from the blade is arranged in the mounting column (3), characterized in that, The cross section of the handle (1) is gourd-shaped, a plurality of first anti-skid lines (4) and a plurality of second anti-skid lines (5) are arranged on the opposite end faces of the handle (1) in the width direction, and the first anti-skid lines (4) and the second anti-skid lines (5) are arranged on both sides of the handle (1) in the length direction respectively.

2. The easy-to-operate small needle knife according to claim 1, characterized in that, The opposite end faces of the handle (1) in the width direction are provided with positioning protrusions (7), the cross section of the positioning protrusions (7) is oval, and the positioning protrusions (7) are arranged between the first anti-skid lines (4) and the second anti-skid lines (5).

3. The easy-to-operate small needle knife according to claim 1, characterized in that, The end face of the handle (1) close to the tool bit (2) is provided with an abutting block (6), and the abutting surface of the abutting block (6) is in the shape of a circular arc.

4. The easy-to-operate small needle knife according to claim 1, characterized in that, The first anti-skid lines (4) and the second anti-skid lines (5) are in the shape of a circular arc, a plurality of the first anti-skid lines (4) are distributed radially around the same center in the direction away from the tool bit (2), and a plurality of the second anti-skid lines (5) are distributed radially around the same center in the direction close to the tool bit (2).

5. The easy-to-operate small needle knife according to claim 1, characterized in that, A rotating groove (8) is arranged on the handle (1) and is in rotational cooperation with the mounting column (3), an annular groove (81) is arranged on the inner side wall of the rotating groove (8), an installation ring (31) is arranged on the mounting column (3) and is in rotational cooperation with the annular groove (81), a driving cavity (9) is arranged in the handle (1), and a driving assembly (10) for driving the mounting column (3) to rotate is arranged in the driving cavity (9).

6. The easy-to-operate small needle knife according to claim 5, characterized in that, The driving assembly (10) comprises a worm wheel (102) coaxially arranged with the mounting column (3), a worm (101) is rotatably arranged in the driving cavity (9) and is in meshing cooperation with the worm wheel (102), and one end of the worm (101) extends out of the driving cavity (9) and is coaxially provided with a rotating wheel (103).

7. The easy-to-operate small needle knife according to claim 6, characterized in that, A circumferential scale mark (11) is arranged on the outer surface of the handle (1), and a pointer (1031) corresponding to the scale mark is fixedly connected coaxially on the rotating wheel (103).

8. The easy-to-operate small needle knife according to claim 6, characterized in that, An anti-skid protrusion (1032) is arranged on the outer surface of the rotating wheel (103).

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