Minimally invasive release needle under ultrasonic guidance

Abstract

The invention relates to a minimally invasive release needle under ultrasonic guidance. The minimally invasive release needle is mainly used for treating chronic pains such as stenosing tenosynovitis, peripheral nerve entrapment and muscular fascia adhesion. The minimally invasive release needle integrates a traditional injection needle and a cutting needle knife, is composed of the needle tube mechanism and the needle core mechanism, is unique in design, and has an inclined plane injection style and a 45-degree inclined cutting edge cutting function. In the injection state, the needle core retreats into the needle tube, and anesthesia injection and hydraulic separation of normal tissue can be carried out through the rear connecting tube. In the cutting state, the needle core is pushed out of the needle tube, the positioning protruding point is clamped into the positioning notch, a transverse V-shaped or inverted T-shaped cutting edge is formed, and pathological tissues are accurately cut and released through the ultrasonic guiding and water separation technology. The minimally invasive release needle has the advantages of being minimally invasive and accurate, only one injection needle eye is left in the skin in the whole treatment process, and the defects that a traditional treatment method is large in wound, slow in recovery, prone to damaging normal tissue and the like are overcome.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, and in particular to a minimally invasive release needle under ultrasound guidance. Background Art

[0002] In the field of chronic pain treatment, traditional surgical methods are often accompanied by greater trauma and longer recovery time, which brings considerable physical and mental burden to patients. With the continuous advancement of medical technology, the concept of minimally invasive treatment has gradually emerged and become an important development direction for chronic pain treatment.

[0003] Traditional clinical treatments for chronic pain caused by stenosing tenosynovitis, peripheral nerve compression, myofascial adhesions, etc. mainly include physical therapy plus conservative medication, surgical treatment, and needle knife release. Physical therapy plus conservative medication is slow to take effect because it cannot solve the fundamental problems of adhesion and compression, so the effect is not good. Surgical treatment is traumatic, will leave scars, and is expensive. Traditional flat-blade needle knife release has a blade at the top of the needle knife, and the target tissue is easy to slip, resulting in low release efficiency and easy damage to surrounding normal tissues; the dovetail needle knife causes great damage to the normal tissue on the needle insertion path, and is as easy to damage the normal structure around the target tissue as the flat-blade needle knife.

[0004] Based on this background, an ultrasound-guided minimally invasive release needle is needed to solve the above problems. Summary of the invention

[0005] In order to solve the problems of the prior art, the present invention provides a minimally invasive release needle under ultrasound guidance.

[0006] In order to solve the above technical problems, the present invention is implemented through the following technical solutions: a minimally invasive release needle under ultrasound guidance, comprising a needle tube mechanism and a needle core mechanism, the front end of the needle tube mechanism is provided with an injection needle tube in a bevel injection style, and the rear end is connected to a needle handle, the needle handle is a hollow structure, and the interior is divided into two front and rear chambers by a pierceable sealing cushion, the side wall of the front chamber is provided with a connecting end and connected to an injection hose, the rear chamber is used to accommodate the needle core mechanism, and a positioning block is provided on the edge, a positioning notch is provided on one side of the positioning block, and one end of the needle handle is fixedly connected to a connecting tube;

[0007] The front end of the needle core mechanism is provided with a needle core body, and the rear end is connected with a needle core handle. A positioning convex point is provided on one side of the needle core handle, and a 45° inclined cutting edge is provided on the top of the needle core body. The positioning convex point matches the positioning notch.

[0008] When the needle core mechanism is retracted into the needle tube mechanism, the front end of the needle tube forms a bevel injection needle style, which is used for hydraulic separation of anesthesia injection and normal tissue; when the needle core mechanism is pushed out of the needle tube mechanism and the positioning convex point is combined with the positioning notch, the needle core and the tip of the needle tube jointly form a horizontal "V"-shaped or inverted "T"-shaped cutting edge, which is used for precise cutting and release of diseased tissue under ultrasound guidance; the gap between the flat strip-shaped needle core body and the needle tube wall is a liquid flow channel, which is used for the flow of anesthetics or saline;

[0009] The needle core body is in the shape of a flat strip. After being inserted into the injection needle body tube, a gap is left between the needle core body and the injection needle body tube for liquid circulation.

[0010] In this implementation, the detailed workflow of the device is as follows:

[0011] Initial state and preparation:

[0012] The minimally invasive release needle consists of a needle tube mechanism and a needle core mechanism. In the initial state, the front end of the needle core mechanism is retracted into the needle tube mechanism. At this time, the bevel injection style injection needle body tube at the front end of the needle tube mechanism is exposed to the outside, forming a bevel injection needle style.

[0013] The injection hose is connected to the syringe and is ready to inject anesthetic drugs or saline.

[0014] Anesthesia injection and hydraulic separation:

[0015] Under ultrasound guidance, the doctor accurately inserts the minimally invasive release needle into the target area (such as narrow tendon sheaths, peripheral nerve entrapment bands, myofascial adhesion bands, and other lesions).

[0016] Anesthetic drugs are injected into the injection hose through a syringe. The anesthetic drugs enter the front cavity of the needle tube mechanism through the connecting end, and are injected around the lesion site through the channels between the two sides of the needle core and the needle tube to achieve the anesthetic effect.

[0017] After anesthesia, continue to inject saline into the injection hose. The saline forms a hydraulic separation between the lesion and normal tissue, separates the normal tissue from the lesion, and helps reduce damage to the normal tissue during cutting.

[0018] Precision cutting:

[0019] After completing anesthesia and hydraulic separation, the doctor pushes the needle core mechanism forward to expose the 45° bevel edge of the needle core body, and the positioning convex point combines with the positioning notch. The needle core and the needle tube tip together form a horizontal "V" or inverted "T" shaped cutting edge, ensuring stability and accuracy during cutting. This design prevents the target tissue from slipping and reduces the risk of damage to surrounding normal tissues.

[0020] Under ultrasound guidance, doctors can precisely cut the diseased tissue by adjusting the force and direction of the needle core needle tube combination. They can also inject saline while cutting to further separate the diseased tissue hydraulically, which helps to loosen the adhesion tissue and restore its function.

[0021] End of treatment and recovery:

[0022] After completing the cutting, the doctor retracts the needle core mechanism into the needle tube mechanism and pulls out the minimally invasive release needle.

[0023] Due to the design of the minimally invasive release needle, only an injection needle hole is left on the skin during the entire treatment process, so the patient recovers quickly with less pain.

[0024] After treatment, patients can undergo rehabilitation training according to the doctor's advice to promote the recovery of damaged tissues and improve their functions.

[0025] In summary, the working principle of the ultrasound-guided minimally invasive release needle is based on the combination of precise mechanical design and ultrasound-guided technology. Through steps such as anesthesia injection, hydraulic separation and precise cutting, it achieves minimally invasive treatment of chronic pain such as stenosing tenosynovitis, peripheral nerve entrapment, and myofascial adhesion. The device is minimally invasive, precise, efficient and safe, providing patients with a new treatment option.

[0026] In a specific embodiment, the injection hose is connected to the syringe and is used to inject physiological saline into the diseased area after anesthesia to achieve hydraulic separation between normal tissue and diseased tissue.

[0027] The bevel design at the front end of the injection needle body tube of the needle tube mechanism facilitates accurate anesthesia injection and hydraulic separation before cutting, while reducing damage to normal tissue.

[0028] In a specific embodiment, the design of the positioning notch and the positioning protrusion ensures that the needle core and the needle tube tip together form a horizontal "V"-shaped or inverted "T"-shaped cutting edge, increasing the stability and accuracy during cutting and preventing the target tissue from slipping and damage to the surrounding normal tissue.

[0029] In a specific embodiment, the entire treatment process is performed under ultrasound guidance, using hydroseparation technology and precise cutting technology to achieve minimally invasive treatment of chronic pain such as stenosing tenosynovitis, peripheral nerve entrapment, and myofascial adhesions.

[0030] In a specific embodiment, further, the design of the minimally invasive release needle allows only one injection needle hole to be left on the skin during the entire treatment process, which is minimally invasive, precise, efficient and safe.

[0031] The beneficial effects of the present invention are:

[0032] 1. The present invention adopts a minimally invasive design concept, and by leaving only a tiny injection needle hole, it achieves effective treatment of chronic pain such as stenosing tenosynovitis, peripheral nerve entrapment, and myofascial adhesion. This minimally invasive treatment method not only significantly reduces surgical trauma, reduces the risk of complications such as postoperative infection and bleeding, but also accelerates the patient's recovery process. Compared with traditional surgical methods, minimally invasive release needles have higher safety and lower complication rates, providing patients with a safer and more effective treatment option;

[0033] 2. With the help of advanced ultrasound guidance technology, this minimally invasive release needle can observe and accurately locate the diseased tissue in real time, ensuring high accuracy and low damage during the treatment process. This precise positioning capability not only improves the success rate of treatment, but also reduces damage to surrounding normal tissues, thereby improving the overall treatment effect. At the same time, the application of minimally invasive release needles also shortens the treatment cycle, reduces the physical and mental burden of patients, improves medical efficiency, and brings patients a more efficient treatment experience;

[0034] 3. The innovation and application of this ultrasound-guided minimally invasive release needle not only improves the technical level of chronic pain treatment, but also injects new vitality into the development of related disciplines. Its design concept and technical means provide useful reference and reference for the research and development of other minimally invasive medical devices, and promote the progress of medical science and technology. At the same time, the wide application of minimally invasive release needles in the field of chronic pain treatment has also brought good news to more patients, and promoted the improvement of medical humanistic care and patient satisfaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall structure of the needle tube mechanism of the present invention.

[0036] Figure 2 It is an overall schematic diagram of the needle core mechanism of the present invention.

[0037] Figure 3 It is a partial front view of the injection needle tube of the present invention.

[0038] Figure 4 It is a partial schematic diagram of the side surface of the injection needle tube of the present invention.

[0039] Figure 5 It is a partial schematic diagram of a top view of the injection needle tube of the present invention.

[0040] Figure 6 It is a partial schematic diagram of a top view of the needle tube mechanism of the present invention.

[0041] Figure 7 It is a partial schematic side view of the needle tube mechanism of the present invention.

[0042] Figure 8 It is a partial schematic diagram of the needle core body of the present invention in a front view.

[0043] Fig. 9 It is a partial schematic side view of the needle core body of the present invention.

[0044] Fig.10 It is a partial schematic diagram of a needle core body of the present invention viewed from above.

[0045] Fig.11 It is a partial schematic top view of the needle core mechanism of the present invention.

[0046] Fig.12 It is a schematic side view of the needle core mechanism of the present invention.

[0047] Fig.13 It is a schematic diagram of the assembly of the needle tube mechanism and the needle core mechanism of the present invention.

[0048] Fig.14 It is a partial schematic diagram of the bottom end of the assembly of the injection needle body tube and the needle core of the present invention.

[0049] Fig.15 It is a partial schematic diagram of the top end of the assembly of the injection needle body tube and the needle core of the present invention.

[0050] Figures 1 to 15 In: 1. needle tube mechanism; 2. needle core mechanism; 11. needle handle; 12. injection needle body tube; 13. connecting end; 131. injection hose; 14. positioning block; 141. positioning notch; 15. connecting tube; 16. pierceable sealing cushion; 21. needle core handle; 22. needle core body; 23. positioning convex point. DETAILED DESCRIPTION

[0051] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0052] Example: Figures 1 to 15The illustrated embodiment of an ultrasound-guided minimally invasive release needle comprises a needle tube mechanism 1 and a needle core mechanism 2. The front end of the needle tube mechanism 1 is provided with an injection needle body tube 12 in an inclined injection style, and the rear end is connected to a needle handle 11. The needle handle 11 is a hollow structure, and the interior is divided into two front and rear chambers by a pierceable sealing cushion 16. The side wall of the front chamber is provided with a connecting terminal 13 and connected to an injection hose 131. The rear chamber is used to accommodate the needle core mechanism 2, and a positioning block 14 is provided on the edge. A positioning notch 141 is provided on one side of the positioning block 14. A connecting tube 15 is fixedly connected to one end of the needle handle 11; a needle core body 22 is provided at the front end of the needle core mechanism 2, and a needle core handle 21 is connected to the rear end. A positioning convex point 23 is provided on one side of the needle core handle 21. A 45° oblique cutting edge is provided at the top of the body 22, and the outer wall of the positioning protrusion 23 matches the inner wall of the positioning notch 141; when the needle core mechanism 2 is retracted into the needle tube mechanism 1, the front end injection needle body tube 12 forms an inclined injection needle style, which is used for hydraulic separation of anesthesia injection and normal tissue; when the needle core mechanism 2 pushes out the needle tube mechanism 1 and the positioning protrusion 23 is combined with the positioning notch 141, the needle core body 22 and the tip of the needle tube 12 jointly form a horizontal "V"-shaped or inverted "T"-shaped cutting edge, which is used for precise cutting and release of diseased tissue under ultrasound guidance. The needle core body 22 is in the shape of a flat strip. After being inserted into the injection needle body tube 12, a gap is left between the needle core body 22 and the injection needle body tube 12 for liquid circulation.

[0053] The injection hose 131 is connected to the syringe and is used to inject physiological saline into the lesion after anesthesia to achieve hydraulic separation between normal tissue and lesion tissue. The front end bevel design of the injection needle tube 12 of the needle tube mechanism 1 helps to perform accurate anesthesia injection and hydraulic separation before cutting, while reducing damage to normal tissue. The design of the positioning notch 141 and the positioning convex point 23 ensures that the needle core body and the needle tube tip form a horizontal "V" or inverted "T" shaped cutting edge, which increases the stability and accuracy during cutting and prevents the target tissue from slipping and damage to the surrounding normal tissue.

[0054] The entire treatment process is conducted under ultrasound guidance, using water separation technology and precise cutting technology to achieve minimally invasive treatment of chronic pain such as stenosing tenosynovitis, peripheral nerve entrapment, and myofascial adhesions. Furthermore, the design of the minimally invasive release needle leaves only one injection needle hole in the skin during the entire treatment process, which is minimally invasive, precise, efficient, and safe.

[0055] This embodiment provides a minimally invasive release needle under ultrasound guidance, which is intended to solve chronic pain problems such as stenosing tenosynovitis, peripheral nerve compression, myofascial adhesions, etc., and reduce the patient's pain and improve the treatment effect through minimally invasive and precise treatment methods. The following is a detailed description of the specific implementation method of the minimally invasive release needle.

[0056] The structure of minimally invasive release needle

[0057] like Figures 1 to 15 As shown, the minimally invasive release needle of this embodiment is mainly composed of a needle tube mechanism 1 and a needle core mechanism 2.

[0058] Needle tube mechanism 1:

[0059] The front end is provided with an injection needle tube 12 of a bevel injection style. This design not only facilitates the accurate injection of anesthetic drugs, but also enables hydraulic separation before cutting, thereby reducing damage to normal tissues.

[0060] The rear end is connected to the needle handle 11, which is a hollow structure, and the interior is divided into two chambers, front and rear, by a pierceable sealing cushion 16. The side wall of the front chamber is provided with a connecting terminal 13, which is used to connect an injection hose 131, and the injection hose 131 is connected to a syringe so that physiological saline can be injected into the lesion after anesthesia. The rear chamber is used to accommodate the needle core mechanism 2.

[0061] A positioning block 14 is provided at the edge of the needle handle 11 , and a positioning notch 141 is provided on one side of the positioning block 14 for matching with the positioning protrusion 23 on the needle core mechanism 2 to ensure stability and accuracy during cutting.

[0062] One end of the needle handle 11 is fixedly connected to a connecting tube 15 for connecting to an ultrasound-guided device or other related equipment.

[0063] Needle core mechanism 2:

[0064] A needle core body 22 is provided at the front end. The needle core body 22 is in the shape of a flat strip. After being combined with the injection needle body tube 12, a liquid flow channel is left in the needle tube. A 45° oblique cutting edge is provided at the top of the needle core body 22. The cutting edge design enables a horizontal "V"-shaped or inverted "T"-shaped incision to be formed with the tip of the injection needle body tube 12 when the needle tube mechanism 1 is pushed out, which is used to accurately cut and loosen the diseased tissue.

[0065] The rear end is connected to a needle core handle 21, and a positioning protrusion 23 is provided on one side of the needle core handle 21. The outer wall of the positioning protrusion 23 matches the inner wall of the positioning notch 141 to ensure stability during cutting and prevent the target tissue from slipping.

[0066] How minimally invasive release needles work

[0067] Anesthesia injection and hydraulic separation:

[0068] Under ultrasound guidance, the minimally invasive release needle is accurately inserted into the target lesion site.

[0069] Anesthetic drugs are injected into the injection hose 131 through a syringe, and the anesthetic drugs enter the front cavity of the needle tube mechanism 1 through the connecting end 13, and are accurately injected around the lesion site through the inclined surface design of the injection needle body tube 12 to achieve an anesthetic effect.

[0070] After anesthesia, continue to inject physiological saline into the injection hose 131, and the physiological saline forms a hydraulic separation between the lesion site and normal tissue to prepare for subsequent precise cutting.

[0071] Precision cutting:

[0072] After anesthesia and hydraulic separation are completed, the needle core mechanism 2 is pushed forward, and the positioning protrusion 23 is combined with the positioning notch 141 to expose the 45° oblique edge of the needle core body 22, forming a horizontal "V"-shaped or inverted "T"-shaped edge together with the injection surface of the tip of the needle tube mechanism 1.

[0073] Under ultrasonic guidance, by adjusting the propulsion force and direction of the combination of the needle core mechanism 2 and the needle tube mechanism 1, the "V"-shaped cutting edge is used to cut and loosen the stuck or adhered tissue, ensuring stability, accuracy and safety during cutting.

[0074] Therapeutic effects and applications

[0075] The minimally invasive release needle of this embodiment successfully solves chronic pain problems such as stenosing tenosynovitis, peripheral nerve entrapment, and myofascial adhesions through minimally invasive and precise treatment. The entire treatment process is carried out under ultrasound guidance, using water separation technology and precise cutting technology to achieve precise treatment of diseased tissues. At the same time, the design of the minimally invasive release needle ensures that only one injection needle hole is left on the skin during the entire treatment process. It is minimally invasive, precise, efficient, and safe, greatly reducing the patient's pain and recovery time.

[0076] In summary, the ultrasound-guided minimally invasive release needle provided in this embodiment has significant therapeutic effect and application value, and provides a new and more effective treatment option for patients with chronic pain.

[0077] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An ultrasound-guided minimally invasive release needle, comprising a needle tube mechanism (1) and a needle core mechanism (2), characterized in that: The needle tube mechanism (1) has a bevel injection-style injection needle tube (12) at its front end and a needle handle (11) at its rear end. The needle handle (11) is a hollow structure, and is internally divided into two front and rear chambers by a pierceable sealing cushion (16). The side wall of the front chamber is provided with a connecting terminal (13) and is connected to an injection hose (131). The rear chamber is used to accommodate the needle core mechanism (2) and has a positioning block (14) at its edge. A positioning notch (141) is provided on one side of the positioning block (14). One end of the needle handle (11) is fixedly connected to a connecting tube (15). The front end of the needle core mechanism (2) is provided with a needle core body (22), and the rear end is connected to a needle core handle (21), a positioning protrusion (23) is provided on one side of the needle core handle (21), and a 45° oblique cutting edge is provided at the top end of the needle core body (22), and the outer wall of the positioning protrusion (23) matches the inner wall of the positioning notch (141); When the needle core mechanism (2) is retracted into the needle tube mechanism (1), the front injection needle body tube (12) forms an inclined injection needle style, which is used for hydraulic separation of anesthetic injection and normal tissue; when the needle core mechanism (2) is pushed out of the needle tube mechanism (1) and the positioning protrusion (23) is combined with the positioning notch (141), the needle core mechanism (2) and the tip of the needle tube mechanism (1) together form a horizontal "V"-shaped or inverted "T"-shaped cutting edge, which is used for precise cutting and release of diseased tissue under ultrasound guidance; The needle core body (22) is in the shape of a flat strip. After being inserted into the injection needle body tube (12), a gap is left between the needle core body (22) and the injection needle body tube (12) for liquid circulation.

2. The ultrasound-guided minimally invasive release needle according to claim 1, characterized in that: The injection hose (131) is connected to a syringe and is used to inject physiological saline into the diseased area after anesthesia to achieve hydraulic separation between normal tissue and diseased tissue.

3. The ultrasound-guided minimally invasive release needle according to claim 1, characterized in that: The front end bevel design of the injection needle body tube (12) of the needle tube mechanism (1) facilitates accurate anesthesia injection and hydraulic separation before cutting, while reducing damage to normal tissue.

4. The ultrasound-guided minimally invasive release needle according to claim 1, characterized in that: The design of the positioning notch (141) and the positioning protrusion (23) ensures the stability of the cutting edge and the accuracy of cutting during cutting, and prevents the target tissue from slipping and the surrounding normal tissue from being damaged.

5. The ultrasound-guided minimally invasive release needle according to claim 1, characterized in that: The entire treatment process is carried out under ultrasound guidance, using water separation technology and precise cutting technology to achieve minimally invasive treatment of chronic pain such as stenosing tenosynovitis, peripheral nerve compression, and myofascial adhesions.

6. The ultrasound-guided minimally invasive release needle according to claim 1, characterized in that: Furthermore, the design of the minimally invasive release needle ensures that only one injection needle hole is left on the skin during the entire treatment process, which is minimally invasive, precise, efficient and safe.

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