Orthopedic needle knife

Abstract

The utility model discloses an orthopedic needle knife, which comprises a needle handle and a needle body in the shape of a column, one end of the needle body is connected with the tail end of the needle handle, and the other end of the needle body is provided with a needle head; the front end of the needle head is provided with a probe part for positioning a contracture soft tissue part by pressing, and at least one side of the needle head and located behind the probe part is formed with a side blade part for cutting the contracture soft tissue part. The utility model positions the contracture soft tissue part through the probe part located at the front end, and after accurate positioning, the side cutting through the blade part located at the side can be adopted by pressing down, so that the quick linear cutting and loosening of the contracture soft tissue part are realized, the loosening efficiency of the contracture soft tissue is effectively improved, and the operation is simpler, and secondary damage can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically to an orthopedic needle knife, particularly an orthopedic needle knife for safely exploring and releasing contracted soft tissues. Background Technology

[0002] The needle knife, a special medical tool combining the concepts of traditional Chinese acupuncture and Western minimally invasive surgery, resembles an acupuncture needle in appearance but has a sharp tip, combining the functions of acupuncture stimulation and minimally invasive cutting. Although needle knife treatment requires surgeons to have solid anatomical knowledge and rich operational experience, due to the variability in the course of blood vessels and nerves in the human body, coupled with the fact that the surgery is performed closed and not under direct vision, even experienced physicians cannot completely avoid the risk of accidentally injuring blood vessels and nerves (because the entire needle knife surgery is performed without direct vision, certain medical risks are unavoidable). The human body's soft tissues contain a large number of nerves, blood vessels, lymphatic vessels, and various fascia structures. After the needle knife enters the body, its sharp blade will non-specifically and non-selectively cut the soft tissue between the skin and the lesion, potentially injuring peripheral nerves, leading to sensory abnormalities, muscle weakness, motor disorders, and loss of muscle function; if blood vessels are accidentally injured, it may cause massive bleeding and hematoma formation, which can even be life-threatening in severe cases; if important fascia in the body's tension system is accidentally cut, it may lead to adverse changes in body shape.

[0003] Soft tissue contractures can cause soft tissues to shorten, leading to joint dysfunction or limb deformities. To address these issues, it's necessary to release the contracted soft tissues that are affecting the joint function or limb deformity, while preserving as much soft tissue as possible that doesn't contribute to the problem (otherwise, structural damage and functional loss may occur). Therefore, the first step is to accurately locate the contracted soft tissues affecting the joint function or limb deformity; the second step is to precisely release these contracted soft tissues while minimizing damage to other soft tissues.

[0004] Currently, traditional needle knife techniques are used to cut and release contracted fascia, aponeurosis, tendons, ligaments, joint capsules, and other soft tissues. Because the blade length of a traditional needle knife is generally around 1mm, and the blade is located on the front surface of the needle tip, each cut during insertion and extraction is about 1mm. This incision appears as a point, making this point-like cutting method very inefficient. If the area of ​​adhesion and contracture is large, release becomes even more difficult, requiring repeated cutting and release, which is time-consuming, laborious, and prone to causing secondary damage, with unsatisfactory results.

[0005] Traditional needle knife therapy typically relies on the practitioner's palpation to identify contracted soft tissues affecting joint function or causing limb deformities. This requires a high level of experience from the practitioner. Superficial contracted soft tissues are relatively easy to locate, while deep contracted soft tissues are more difficult to locate. Furthermore, not all palpable contractures are contracted tissues, as even a few contracted fibers within soft tissue can cause contractures to appear upon palpation. Traditional needle knives are all edged, with very sharp blades for ease of cutting. The sharper the blade, the smaller the difference in resistance when penetrating normal and contracted soft tissues, making it difficult to distinguish between contracted and normal soft tissues during actual operation. This is especially true when releasing soft tissues surrounded by several contracted fibers. Alternatively, some needle knives are made with a blunted blade to emphasize the difference in resistance. However, a blunter blade requires greater force to cut contracted soft tissues, making blade control more difficult and increasing the likelihood of further penetration, thus increasing the risk of damaging deeper nerves, blood vessels, and other vital organs.

[0006] For example, gluteal muscle contracture is a typical disease caused by soft tissue contracture. Currently, it is almost universally agreed that needle knife therapy is only suitable for treating mild to moderate gluteal muscle contracture, and not for treating moderate to severe gluteal muscle contracture. The reasons are as follows: 1. The contracture site in moderate to severe gluteal muscle contracture is deeper, making it difficult to locate by touch alone; 2. There are many deep nerves and blood vessels in the buttocks, and traditional needle knife therapy can easily damage these nerves and blood vessels; 3. The contracture area in moderate to severe gluteal muscle contracture is large, and traditional needle knife therapy can only perform lifting, inserting, cutting, and loosening, which has low loosening efficiency and makes it difficult to achieve a complete loosening effect.

[0007] Currently, there is no effective solution to the problems of low efficiency in releasing contracted soft tissues, easy to cause secondary damage, and high difficulty in operation when using needle knives with the blade located on the front end face for point cutting in related technologies.

[0008] Therefore, this utility model proposes an orthopedic needle knife to overcome the defects of the prior art. Utility Model Content

[0009] The purpose of this invention is to provide an orthopedic needle knife that uses a probe at the front end to locate the contracted soft tissue. After accurate positioning, it can be pressed down and laterally cut by the blade on the side to achieve rapid linear cutting and release of the contracted soft tissue. This effectively improves the release efficiency of contracted soft tissue, and the operation is simpler, avoiding collateral damage.

[0010] The objective of this utility model can be achieved by the following solutions:

[0011] This utility model provides an orthopedic needle knife, the orthopedic needle knife comprising:

[0012] needle handle;

[0013] The needle body is cylindrical, with one end connected to the end of the needle handle and the other end having a needle tip; the front end of the needle tip has a probe portion for locating the contracted soft tissue area by pressing, and at least one side of the needle tip and located behind the probe portion has a side blade portion for cutting the contracted soft tissue area.

[0014] In a preferred embodiment of the present invention, the needle is flat, and the side blades are formed on both sides of the needle head and on both sides located behind the probe portion.

[0015] In a preferred embodiment of the present invention, the probe portion is a circular blade formed on the front end face of the needle, and the cross-section of the circular blade is an arc-shaped surface.

[0016] In a preferred embodiment of this utility model, the side blade is a vertically extending blade, or a diagonally extending blade, or a hook-shaped blade.

[0017] Wherein, the side blade is a blunt blade, and the blade angle of the blunt blade is 22°-40°;

[0018] Alternatively, the side blade may be a sharp blade with a blade angle of 10°-22°.

[0019] In a preferred embodiment of the present invention, the probe portion is a sharp blade formed on the front end face of the needle, and the cross-section of the sharp blade is a pointed angle.

[0020] In a preferred embodiment of this utility model, the pointed blade is a blunt blade, and the blade angle of the blunt blade is 22°-40°;

[0021] Alternatively, the tip is a sharp edge, and the angle of the sharp edge is 10°-22°.

[0022] In a preferred embodiment of this utility model, the side blade is a vertically extending blade or a hook-shaped blade.

[0023] Wherein, the side blade is a blunt blade, and the blade angle of the blunt blade is 22°-40°;

[0024] Alternatively, the side blade may be a sharp blade with a blade angle of 10°-22°.

[0025] In a preferred embodiment of the present invention, the needle handle is a flat triangular structure that tapers from the direction away from the needle body to the direction closer to the needle body;

[0026] At least one of the side blades is located on the same side as the hypotenuse of the triangular structure.

[0027] In a preferred embodiment of the present invention, along the axial direction of the needle body, at least one central plane on the needle handle is located in the same plane as the cutting edge line of the side blade.

[0028] And / or, when the probe portion is the pointed blade, at least one central plane on the needle handle is located in the same plane as the cutting edge line of the probe portion and the cutting edge line of the side blade portion along the axial direction of the needle body.

[0029] In a preferred embodiment of the present invention, the needle body is provided with a scale display section.

[0030] As described above, the features and advantages of this orthopedic needle knife are:

[0031] A needle body is located at the end of the needle handle, and the end of the needle body adopts a special needle tip structure. The front end of the needle tip has a probe. During the release of contracted soft tissue, the operator can press the soft tissue part through the probe and accurately locate the contracted soft tissue part based on the different feel of the contracted soft tissue part and the non-contracted soft tissue part, thus achieving the purpose of locating the contracted soft tissue part first. Then, the probe can press the contracted soft tissue part and form a depression, so that the needle tip is located in the depression area. Since at least one side of the needle tip and located behind the probe is formed, the side blade is sharpened. The contracted soft tissue part can be cut by lateral pushing, cutting, or hooking actions of the side blade. Compared with the traditional point-cutting release method, this utility model can achieve rapid linear cutting and release of contracted soft tissue parts, which can effectively improve the release efficiency, and has a simple structure, is easy to operate, and avoids secondary damage. Attached Figure Description

[0032] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein:

[0033] Figure 1 This is a schematic diagram of the structure of the orthopedic needle knife of this utility model;

[0034] Figure 2 This is one of the structural schematic diagrams of the needle head in the orthopedic needle knife of this utility model;

[0035] Figure 3 This is the second schematic diagram of the needle head in the orthopedic needle knife of this utility model;

[0036] Figure 4 This is the third schematic diagram of the needle head in the orthopedic needle knife of this utility model;

[0037] Figure 5 This is the fourth schematic diagram of the needle head in the orthopedic needle knife of this utility model;

[0038] Figure 6 This is the fifth schematic diagram of the needle head in the orthopedic needle knife of this utility model;

[0039] Figure 7 This is the sixth schematic diagram of the needle head in the orthopedic needle knife of this utility model;

[0040] Figure 8 This is the seventh schematic diagram of the needle head in the orthopedic needle knife of this utility model;

[0041] Figure 9 This is one of the schematic diagrams showing the position of the orthopedic needle knife of this utility model for cutting contracted soft tissue;

[0042] Figure 10 This is the second schematic diagram showing the location of the orthopedic needle knife of this utility model for cutting contracted soft tissue.

[0043] Figure 11 This is the third schematic diagram showing the cutting position of the orthopedic needle knife of this utility model on the contracted soft tissue area;

[0044] Figure 12 This is the fourth schematic diagram showing the position of the orthopedic needle knife of this utility model for cutting contracted soft tissue.

[0045] Figure 13 This is the fifth schematic diagram showing the cutting position of the orthopedic needle knife of this utility model on the contracted soft tissue area;

[0046] Figure 14 This is the sixth schematic diagram showing the cutting position of the orthopedic needle knife of this utility model on the contracted soft tissue area;

[0047] Figure 15 This is the seventh schematic diagram showing the cutting position of the orthopedic needle knife of this utility model on the contracted soft tissue area;

[0048] Figure 16 This is the eighth schematic diagram showing the cutting position of the orthopedic needle knife of this utility model on the contracted soft tissue area;

[0049] Figure 17 This is diagram nine showing the location where the orthopedic needle knife of this utility model cuts the contracted soft tissue.

[0050] Figure 18 This is diagram ten showing the location of the orthopedic needle knife of this utility model for cutting contracted soft tissue.

[0051] Figure 19 This is 11 of the schematic diagrams showing the cutting positions of the orthopedic needle knife of this utility model for contracted soft tissue.

[0052] Figure 20This is diagram 12, showing the location for cutting contracted soft tissue areas using the orthopedic needle knife of this utility model.

[0053] The reference numerals in the accompanying drawings of this utility model are:

[0054] 1. Needle handle; 2. Needle body;

[0055] 201. Needle tip; 2011. Probe section;

[0056] 2012, Side blade; 3, Skin;

[0057] 4. Fascia; 5. Muscle;

[0058] 6. Contracted soft tissues; 7. Transverse carpal ligament;

[0059] 8. Flexor tendons of the fingers; 9. Carpal tunnel. Detailed Implementation

[0060] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate this utility model and are not intended to limit the scope of this utility model. After reading this utility model, any modifications of this utility model in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0061] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0062] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0063] like Figures 1 to 8As shown, this utility model provides an orthopedic needle knife, which includes a needle handle 1 and a columnar needle body 2. One end of the needle body 2 is fixedly connected to the end of the needle handle 1, and the other end of the needle body 2 has a needle tip 201. The front end of the needle tip 201 has a probe portion 2011 for positioning the contracted soft tissue area by pressing. At least one side of the needle tip 201, located behind the probe portion 2011, is formed with a side blade portion 2012 for cutting the contracted soft tissue area.

[0064] In this invention, a needle body 2 is provided at the end of the needle handle 1, and the end of the needle body 2 adopts a special needle tip structure. The front end of the needle tip 201 has a probe part 2011. During the release of contracted soft tissue, the operator can press the soft tissue part through the probe part 2011. Based on the different feel of the contracted soft tissue part and the non-contracted soft tissue part, the operator can accurately locate the position of the contracted soft tissue part (the hardness and the degree of indentation when pressing are different between the contracted and non-contracted soft tissue parts). Through the probe part 2011, the operator can first achieve the purpose of accurately locating the contracted soft tissue part, improve the accuracy of the release, and avoid unnecessary damage to other surrounding soft tissues; then through... The probe portion 2011 can press on the contracted soft tissue area and form a depression, so that the needle 201 is located in the depression area. Since a side blade portion 2012 is formed on at least one side of the needle 201 and located behind the probe portion 2011, the side blade portion 2012 is sharpened. The contracted soft tissue area can be cut by lateral pushing, cutting, or hooking actions of the side blade located in the depression area. Compared with the traditional point-cutting release method, this utility model can not only achieve precise positioning of the contracted soft tissue area, but also achieve rapid linear cutting and release of the contracted soft tissue area, which can effectively improve the release efficiency. Moreover, the structure is simple, the operation is easy, and it avoids causing secondary damage.

[0065] In an optional embodiment of this invention, the needle body 2 is provided with a scale display section (not shown). This scale display section allows the operator to know the depth of the contracted tissue in real time during operation, providing depth information for the contracted tissue. The scale display section can be a dimensional scale line on the needle body 2, thereby displaying the depth information of the contracted tissue.

[0066] In one optional embodiment of this utility model, such as Figures 1 to 8 As shown, the needle 201 is flattened to fit the narrow spaces within the human body assembly. Figure 5 As shown, a side blade 2012 is formed only on the needle tip 201 and on the side behind the probe portion 2011. During use, cutting and loosening can only be performed on the side with the side blade 2012. Of course, in another optional embodiment of this utility model, such as Figure 2 and Figure 3 As shown, side blades 2012 are formed on both sides of the needle 201 and behind the probe part 2011. This structure makes it easier to loosen and cut. Depending on the actual situation, one side blade 2012 or both side blades 2012 can be used to cut and loosen contracted soft tissue, making the operation more convenient.

[0067] In this embodiment, the blade length of the side blade 2012 can be, but is not limited to, 0.2-2.0 mm. By setting different lengths of the side blade 2012, the cutting and loosening depth can be precisely controlled to achieve the preset cutting and loosening purpose.

[0068] In one optional embodiment of this utility model, such as Figure 2 As shown, the probe portion 2011 can be a circular blade formed on the front end face of the needle tip 201. This circular blade is actually a non-sharpened structure, meaning its cross-section is an arc-shaped surface (such as a semi-circular or semi-elliptical surface). The circular blade is used only to press and locate the contracted soft tissue area without cutting it. In actual operation, the probe portion 2011 can safely probe and locate the degree and extent of contracture in the soft tissue. Since touching nerves can cause electric shock or numbness, and touching arteries can cause pain, the circular blade design can stimulate nerves and arteries without causing damage, while simultaneously providing the operator with positioning information for accurate location and release.

[0069] In another optional embodiment of this utility model, such as Figures 3 to 8 As shown, the probe portion 2011 can also be a sharp blade formed on the front end face of the needle 201, and the cross-section of the sharp blade is a sharp angle.

[0070] Furthermore, when the probe portion 2011 is a sharp blade, the sharp blade is a blunt blade. The function of the blunt blade is the same as that of the round blade, which is to press and position the contracted soft tissue, and at the same time, it can also perform blunt release and dissection of the contracted soft tissue. The blade angle of the blunt blade can be, but is not limited to, 22°-40°, with 28° being the preferred blade angle.

[0071] Furthermore, such as Figure 3 As shown, when the probe part 2011 is a pointed blade, this pointed blade is a sharp blade. This sharp blade not only serves to press and locate the contracted soft tissue area, but also, provided the treatment site is safe, can directly perform point-like cutting of the contracted soft tissue area, facilitating operation. The blade angle can be, but is not limited to, 10°-22°, with a preferred blade angle of 15°.

[0072] In another optional embodiment of this utility model, such as Figure 1As shown, the needle handle 1 is a flat triangular structure that gradually narrows from away from the needle body 2 to close to the needle body 2. The structure is narrow at the front and wide at the back, which makes it convenient for the operator to use three fingers (middle finger, ring finger, and little finger) and palm to hold the needle handle firmly at the wide back position, and convenient for the thumb and index finger to use it as a fulcrum for flexible operation at the narrow front position.

[0073] Furthermore, since the side blade 2012 is located on the same side as the hypotenuse of the triangular structure, cutting contracted soft tissue areas using the side blade 2012 requires less effort and is easier, whether it's pushing, slicing, or hooking (due to the lever principle, the longer the lever arm, the less effort is required). For example, when side blades 2012 are formed on both sides of the needle 201 behind the probe 2011, in actual operation, one side can be preset as the main side blade and the other as the auxiliary side blade, thus setting the main side blade to be on the same side as the hypotenuse of the triangular structure.

[0074] In an optional embodiment of this utility model, along the axial direction of the needle body 2, at least one central plane on the needle handle 1 is located in the same plane as the blade line of the side blade portion 2012, so that the direction of the blade line can be clearly seen during the operation of the orthopedic needle knife.

[0075] Furthermore, when the probe part 2011 is a sharp blade, at least one central plane on the needle handle 1 is located in the same plane as the blade line of the probe part 2011 and the blade line of the side blade part 2012 along the axial direction of the needle body 2.

[0076] In one optional embodiment of this utility model, such as Figures 3 to 5 As shown, the side cutting edge 2012 can be a vertically extending blade (i.e., a vertical blade). Of course, as... Figure 7 and Figure 8 As shown, the side cutting edge 2012 can also be an obliquely extending cutting edge (i.e., an oblique edge); such as Figure 6 As shown, the side blade 2012 can also be a hook-shaped blade (i.e., a hook blade). In actual operation, different structures of the side blade 2012 can be replaced to adapt to different operating methods and scenarios.

[0077] Furthermore, the side cutting edge 2012 may be a blunt edge. The cutting angle of the blunt edge may be, but is not limited to, 22°-40°, with a preferred cutting angle of 28°.

[0078] Furthermore, the side blade 2012 may also be a sharp blade. The blade angle of the sharp blade may be, but is not limited to, 10°-22°, with a preferred blade angle of 15°.

[0079] In some specific embodiments of this utility model, operating methods for certain blade types are provided, as follows:

[0080] Option 1, when the side blade 2012 is Figure 3 and Figure 5 When the blade has a vertically extending edge (i.e., a vertical blade), the operating method is as follows:

[0081] Step S1: Use a regular needle knife to open the skin at 3 fixed points;

[0082] Step S2: The needle 201 of the orthopedic needle knife of this utility model enters the human tissue through the incision.

[0083] Step S3: As Figure 9 As shown, during the insertion process, the needle 201 encountered the normal fascia 4, resulting in difficulty in insertion; at this time, as Figure 10 As shown, the needle handle 1 can be controlled to tilt the needle body 2 towards the side blade 2012 at a certain angle (e.g., 30°), and then the side blade 2012 is used to push and cut the fascia 4 to cut the fascia 4; after that, the needle body 2 is restored to an angle perpendicular to the skin at the incision position, and the needle tip 201 is pushed inward from the tear on the cut fascia 4.

[0084] Step S4: As Figure 11 As shown, the needle 201 passes through the muscle 5 to reach the contracted soft tissue 6. The probe part 2011 of the needle 201 is used to explore and locate the tension (degree of contracture) of the contracted soft tissue 6 and the extent of the contracted soft tissue 6, and to determine whether there are nerves or blood vessels in the surrounding area (i.e., to determine a safe release path).

[0085] Step S5: As Figure 12 As shown, at the safe release point, rotate the needle body 2 90° by operating the needle handle 1, and then, as... Figures 13 to 15 As shown, by operating the needle handle 1, the needle body 2 is tilted 30° towards the side blade 2012. At this time, the cutting line of the side blade 2012 is perpendicular to the fibers of the contracted soft tissue 6. Then, the side blade 2012 is used to push or cut the contracted soft tissue 6.

[0086] Step S5: To achieve the purpose of loosening the contracted soft tissue 6, withdraw the needle 201.

[0087] Option 2, when the side blade 2012 is Figure 6 When dealing with the hook-shaped blade (i.e., the hook edge), taking the release of the contracted transverse carpal ligament 7 as an example, the operation method is as follows:

[0088] Step S1: Locate the inlet of carpal tunnel 9 and use a regular needle knife to open the skin at the designated point;

[0089] Step S2: As Figure 16 As shown, the needle 201 of the orthopedic needle knife of this utility model enters the human tissue through the incision, and the cutting edge line of the side blade 2012 is parallel to the flexor tendon 8 of the fingers.

[0090] Step S3: Control the needle handle 1 so that the probe part 2011 reaches the contracted transverse carpal ligament 7, and use the probe part 2011 to explore the proximal edge of the contracted transverse carpal ligament 7, such as... Figure 17 As shown, when the probe 2011 is used to press on the proximal edge of the contracted transverse carpal ligament 7, a depression appears in the contracted transverse carpal ligament 7. Figures 18 to 20 As shown, use the side blade 2012 to hook the proximal edge of the contracted transverse carpal ligament 7, lift the needle 201, and hook off this part of the contracted transverse carpal ligament 7. Then repeat the above action until the contracted transverse carpal ligament 7 is released.

[0091] Step S4: To achieve the purpose of releasing the contracted transverse carpal ligament 7, withdraw the needle 201.

[0092] Option 3, when the side blade 2012 is Figure 7 and Figure 8 When using a slanted blade (i.e., a beveled edge), it is suitable for releasing relatively shallow, large-area contractures of soft tissue. The procedure is as follows:

[0093] Step S1: Use a regular needle knife to open the skin at 3 fixed points;

[0094] Step S2: The needle 201 of the orthopedic needle knife of this utility model enters the human tissue through the incision.

[0095] Step S3: The probe part 2011 reaches the contracted soft tissue 6, and the probe part 2011 of the needle 201 explores and locates the tension (degree of contracture) of the contracted soft tissue 6 and the extent of the contracted soft tissue 6, and determines whether there are nerves or blood vessels in the surrounding area (i.e., determine a safe release path).

[0096] Step S4: At the safe release point, rotate the needle body 2 90° by operating the needle handle 1. Then, tilt the needle body 2 30° towards the side blade 2012 by operating the needle handle 1. Then, use the side blade 2012 to cut the contracted soft tissue 6 to achieve the purpose of releasing the contracted soft tissue 6.

[0097] Step S5: To achieve the purpose of loosening the contracted soft tissue 6, withdraw the needle 201.

[0098] The features and advantages of this orthopedic needle knife are:

[0099] I. The structural design of this orthopedic needle knife enhances its safety, reduces the risks and complications of non-direct-vision surgery, and minimizes damage to normal tissue. It enables blunt puncture and dissection. During the process of the needle 201 penetrating the skin and passing through the normal soft tissue surrounding the lesion, it avoids cutting normal ligaments, muscle fibers, lymph nodes, and other normal soft tissues, ensuring that normal soft tissue is not injured. When operating in or near "high-risk" areas with dense blood vessels and nerves, the needle 201 will cause a discharge or numbness sensation when touching nerves, and a pain sensation when touching arteries, but without causing damage. Operators can accurately and safely locate the release point before performing the release operation, avoiding accidental cutting of high-risk tissue and reducing surgical risks.

[0100] Second, the probe 2011 of this orthopedic needle knife can safely explore the degree and extent of contracture in the contracted soft tissue. Since touching human nerves will cause electric shock and numbness, and touching blood vessels will cause pain, the probe 2011 can stimulate nerves and blood vessels without causing damage, while providing positioning information for the operator. The scale on the needle body 2 can locate the depth of the contracted tissue.

[0101] Third, this orthopedic needle knife improves the safety and efficiency of releasing contracted soft tissue areas. For contracted soft tissue areas that have been explored, linear release can be achieved by cutting, pushing, or hooking the side blade, which is faster and more efficient.

[0102] IV. When the probe 2011 of this orthopedic needle knife is a round blade, it can provide blunt dissection for soft tissues such as fascia, subcutaneous tissue, muscles, tendon sheaths, and bursae. Due to adhesions, contractures, and scarring between the fascia and surrounding tissues, blood flow is impeded, metabolic waste and irritating chemicals accumulate, stress increases, and even inflammation occurs. Nerves are stimulated, causing pain. Blunt dissection can unblock meridians and myofascia, loosen soft tissue adhesions, reduce pressure and tension, release adhesions, and relieve entrapped blood vessels and nerves, thus achieving the purpose of reducing tension and pressure.

[0103] Fifth, this orthopedic needle knife can control the depth of each cut by setting different blade lengths of the side blade 2012, thereby precisely controlling the degree of cutting and loosening.

[0104] VI. In this orthopedic needle knife, the needle 201 is flat and the probe part 2011 is a round blade. When pressure is applied to the contracted soft tissue, the tension sensation will be significantly different when the longitudinal axis of the needle 201 is parallel to and perpendicular to the direction of the contracted fiber, which can be used to determine the direction of the contracted fiber.

[0105] VII. This orthopedic needle knife can explore the size and thickness of contracted soft tissue, as well as the tension and direction of the contracted fibers. Simultaneously, the side blade 2012 can precisely release the contracted soft tissue. For example, the iliotibial band fibers are divided into three layers (superficial longitudinal fibers, middle oblique fibers, and deep reticular fibers). The superficial longitudinal fibers counteract vertical tension, the middle oblique fibers buffer torsional forces, and the deep reticular fibers lubricate and slide. When the superficial longitudinal fibers contract, the probe 2011 can be aligned with the axis of the superficial longitudinal fibers to locate the point of highest tension. After confirming the point of highest tension, the 0.2mm long side blade 2012 is used to push or cut the contracted fibers. After release, the probe 2011 is used to press and explore to confirm the release effect. This allows for precise release of superficial longitudinal contracted fibers without damaging the middle oblique fibers and deep reticular fibers.

[0106] It should be noted that in the description of this application, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more.

[0107] The various embodiments described in this specification are presented in a progressive manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0108] The above are merely several embodiments of this utility model. Although the embodiments disclosed in this utility model are as described above, the content is only for the purpose of facilitating understanding of this utility model and is not intended to limit this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. An orthopedic needle knife, characterized in that, The orthopedic needle knife includes: needle handle; The needle body is cylindrical, with one end connected to the end of the needle handle and the other end having a needle tip; the front end of the needle tip has a probe portion for locating the contracted soft tissue area by pressing, and at least one side of the needle tip and located behind the probe portion has a side blade portion for cutting the contracted soft tissue area.

2. The orthopedic needle knife of claim 1, wherein, The needle is flat, and the side blades are formed on both sides of the needle head and on the rear side of the probe.

3. The orthopedic needle knife as described in claim 1, characterized in that, The probe portion is a circular blade formed on the front end face of the needle, and the cross-section of the circular blade is an arc-shaped surface.

4. The orthopedic needle knife as described in claim 3, characterized in that, The side blade is a vertically extending blade, or a diagonally extending blade, or a hook-shaped blade. Wherein, the side blade is a blunt blade, and the blade angle of the blunt blade is 22°-40°; Alternatively, the side blade may be a sharp blade with a blade angle of 10°-22°.

5. The orthopedic needle knife as described in claim 1, characterized in that, The probe portion is a sharp blade formed on the front end face of the needle, and the cross-section of the sharp blade is a pointed angle.

6. The orthopedic needle knife as described in claim 5, characterized in that, The pointed blade is a blunt blade, and the angle of the blunt blade is 22°-40°. Alternatively, the tip is a sharp edge, and the angle of the sharp edge is 10°-22°.

7. The orthopedic needle knife as described in claim 5, characterized in that, The side blade is a vertically extending blade or a hook-shaped blade; Wherein, the side blade is a blunt blade, and the blade angle of the blunt blade is 22°-40°; Alternatively, the side blade may be a sharp blade with a blade angle of 10°-22°.

8. The orthopedic needle knife as described in claim 3 or 5, characterized in that, The needle handle is a flat triangular structure that tapers from the direction away from the needle body to the direction closer to the needle body; At least one of the side blades is located on the same side as the hypotenuse of the triangular structure.

9. The orthopedic needle knife as described in claim 8, characterized in that, Along the axial direction of the needle body, at least one central plane on the needle handle is in the same plane as the cutting edge line of the side blade. And / or, when the probe portion is a sharp blade, at least one central plane on the needle handle is located in the same plane as the cutting edge line of the probe portion and the cutting edge line of the side blade portion along the axial direction of the needle body.

10. The orthopedic needle knife as described in claim 1, characterized in that, The needle body is provided with a scale display section.

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