A complete small needle knife for tendovaginitis and nerve compression disease
By providing a multifunctional complete set of small needle knives, the problems of difficulty in selecting existing small needle knives and side effects have been solved, achieving safety and comfort in minimally invasive treatment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINCHENG SECOND PEOPLES HOSPITAL
- Filing Date
- 2025-04-09
- Publication Date
- 2026-07-03
AI Technical Summary
The existing small needle knife is troublesome to select in clinical use, its shape is not suitable for surgical needs, it may cause collateral damage, and there is a lack of complete sets of tools, which affects the treatment effect and patient comfort.
This invention provides a complete set of small needle knives, including a round needle knife, a probe, a separation needle, a hook needle knife, and a storage box. The needle knives have different shapes and functions, and are suitable for minimally invasive treatment of tenosynovitis and nerve entrapment diseases, reducing damage to tissues, nerves, and blood vessels.
It improves the precision of doctors' operations in non-direct vision conditions, reduces external damage to the affected area, and enhances the safety of treatment and patient comfort.
Smart Images
Figure CN224441377U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a complete set of small needle knives for tenosynovitis and nerve entrapment diseases, belonging to the field of medical device technology. Background Technology
[0002] Tenosynovitis, also known as "trigger finger," commonly affects the thumb, middle finger, and radial styloid process. Symptoms include a snapping sound when the finger is flexed or extended, and severe pain that can prevent the joint from bending or straightening, feeling as if it is suddenly "stuck." Tenosynovitis is common among people who frequently do handicrafts, practice musical instruments, play games, are pregnant women, postpartum women, and middle-aged and elderly women who do a lot of housework.
[0003] A tendon sheath is a double-layered, closed synovial tube that surrounds a tendon. The inner layer is the synovium, which nourishes the tendon and secretes synovial fluid to facilitate tendon gliding. The outer layer connects to the bone surface and serves to fix and protect the tendon. Tenosynovitis is an inflammation inside the finger caused by excessively frequent or forceful movement of the tendon sheath. This repeated friction within the sheath leads to inflammation and even adhesions, resulting in pain and limited mobility.
[0004] Surgical methods for stenosing tenosynovitis of the finger flexor tendons include traditional open tenosynovotomy, which involves making a 2cm incision in the palmar skin to longitudinally cut the tendon sheath and release the flexor tendon. Small needle knife therapy is a traditional minimally invasive treatment method in pain management. It replaces the tip of a traditional acupuncture needle with the blade of a knife, allowing it to both promote blood circulation and precisely release and separate diseased adhesions to achieve pain relief and disease treatment. Small needle knife treatment for tenosynovitis has advantages such as simplicity, safety, minimal trauma, less bleeding, low risk of complications, rapid postoperative recovery, and low recurrence rate.
[0005] Carpal tunnel syndrome, commonly known as "mouse hand," is the most common nerve entrapment disorder. Simply put, the carpal tunnel is a bony-fibrous canal in the wrist, formed by the carpal bones and flexor retinaculum. The median nerve and flexor tendons pass through this canal. When various factors cause increased pressure within the carpal tunnel, it compresses the median nerve, leading to a series of symptoms—this is carpal tunnel syndrome.
[0006] For carpal tunnel syndrome, if conservative treatment is ineffective, or if symptoms are severe and include muscle atrophy in the hand, surgical treatment should be considered. The purpose of the surgery is to cut the transverse carpal ligament to relieve compression of the median nerve. Currently, commonly used surgical methods include open carpal tunnel decompression surgery. Open surgery is simple to perform and provides thorough decompression, but it is more invasive and has a longer recovery time. Minimally invasive needle knife therapy for carpal tunnel syndrome is a minimally invasive surgical method. Its principle is to relieve nerve compression symptoms by cutting off the compressing component within the carpal tunnel. Its advantages include minimal trauma, rapid recovery, and fewer complications.
[0007] Currently available small needle knives are generally sold individually, and their shapes and sizes vary, making it difficult for doctors to choose the right one for clinical use. Furthermore, the shapes of existing small needle knives sometimes do not perfectly meet surgical needs, causing inconvenience for doctors or causing collateral damage to patients. Therefore, there is a need for a small needle knife that is easy for doctors to choose and use, allowing them to perform procedures without direct vision, minimizing damage to areas outside the affected area, nerves, or blood vessels, and reducing patient suffering. Utility Model Content
[0008] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a complete set of small needle knives for tenosynovitis and nerve entrapment diseases that are easy to select and can reduce collateral damage.
[0009] To achieve the above objectives, the present invention adopts the following technical solution: a complete set of small needle knives for tenosynovitis and nerve entrapment diseases, including a round needle knife, a probe, a separating needle, a hook needle knife, and a storage box for storing the above needle knives.
[0010] The circular needle knife includes a circular needle knife handle and a circular needle knife body fixed on the circular needle knife handle. The needle tip of the circular needle knife body has an arc-shaped outer arc cutting edge.
[0011] The probe one includes a probe one handle and a probe one needle body fixed on the probe one handle. The needle tip of the probe one needle body is a spherical probe one, and the diameter of the probe one is larger than the diameter of the probe one needle body.
[0012] The separation needle includes a separation needle handle and a separation needle body fixed on the separation needle handle. The needle tip of the separation needle body is conical.
[0013] The crochet knife includes a crochet knife handle and a crochet knife needle body fixed on the crochet knife handle. The needle tip of the crochet knife needle body is bent into an arc shape, and an inner arc blade is opened on the inner side of the arc-shaped needle tip.
[0014] The width of the outer arc cutting edge of the circular needle knife is greater than the diameter of the probe on the probe one, and the width of the arc-shaped needle head in the hook needle knife is less than or equal to the diameter of the probe on the probe one, and also less than or equal to the diameter of the needle body of the separating needle one.
[0015] Furthermore, the present invention also includes a second probe, which includes a second probe handle and a second probe needle body fixed on the second probe handle. The tip of the second probe needle body is a spherical probe, and the second probe needle body is arc-shaped. The diameters of the second probe needle body and the second probe are the same as the diameters of the first probe needle body and the first probe, respectively.
[0016] Furthermore, the present invention also includes a second separating needle, which includes a second separating needle handle and a second separating needle body fixed on the second separating needle handle. The needle tip of the second separating needle body is conical, and the entire second separating needle body is arc-shaped. The diameter of the second separating needle body is the same as the diameter of the first separating needle body.
[0017] Furthermore, this utility model also includes a second crochet knife, which includes a second crochet knife handle and a second crochet knife needle body fixed on the second crochet knife handle. The needle tip of the second crochet knife needle body is bent into a barb shape, and a straight cutting edge is opened on the inner side of the barb-shaped needle tip. The width of the barb-shaped needle tip in the second crochet knife is the same as the width of the arc-shaped needle tip in the first crochet knife.
[0018] Furthermore, the storage box includes a box body, a box lid, and an inner liner. The box lid is hinged to the box body, and the inner liner is filled inside the box body. The top surface of the inner liner is flush with the top surface of the box body, and the inner liner is provided with grooves that are adapted to the shape of each needle knife, and each needle knife is placed in the corresponding groove.
[0019] Compared with the prior art, the present invention has the following beneficial effects.
[0020] 1. This utility model is a set of instruments containing multiple needle knives of different shapes housed in a storage box. The probe, separation needle, and hook needle each have two different shapes to choose from, allowing doctors to select the appropriate needle knife according to the situation. It is also very convenient to store and carry.
[0021] 2. In this utility model, different types of needle knives are used together during the procedure. The round needle knife is used to cut the skin, and the probe or the separation needle is used to separate the tissue. Because the tip of the probe is a spherical probe and the tip of the separation needle is a pointed cone, both can greatly reduce damage to tissues, nerves and blood vessels when creating tunnels by separating tissues, thus improving the safety of small needle knife treatment. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a schematic diagram of the structure of this utility model.
[0024] Figure 2 This is a schematic diagram of the structure of the circular needle knife in this utility model.
[0025] Figure 3 This is a schematic diagram of the structure of probe one in this utility model.
[0026] Figure 4 This is a schematic diagram of the structure of probe two in this utility model.
[0027] Figure 5 This is a schematic diagram of the separation needle in this utility model.
[0028] Figure 6 This is a schematic diagram of the structure of the second separation needle in this utility model.
[0029] Figure 7 This is a schematic diagram of the structure of the hook needle knife in this utility model.
[0030] Figure 8 This is a schematic diagram of the structure of the hook needle knife II in this utility model.
[0031] In the diagram: 1 is a round needle knife, 2 is probe one, 3 is separating needle one, 4 is a hook needle knife one, 5 is a storage box, 6 is probe two, 7 is separating needle two, 8 is hook needle knife two; 11 is the handle of the round needle knife, 12 is the needle body of the round needle knife, 13 is the outer arc blade edge; 21 is the handle of probe one, 22 is the needle body of probe one, 23 is probe one; 31 is the handle of separating needle one, 32 is the needle body of separating needle one; 41 is the handle of hook needle knife one, 42 is the needle body of hook needle knife one, 43 is the inner arc blade edge; 51 is the box body, 52 is the box lid, 53 is the inner lining, 54 is the groove; 61 is the handle of probe two, 62 is the needle body of probe two, 63 is probe two; 71 is the handle of separating needle two, 72 is the needle body of separating needle two; 81 is the handle of hook needle knife two, 82 is the needle body of hook needle knife two, 83 is the straight blade edge. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.
[0033] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings of this specification are only used to complement the content disclosed in the specification for those skilled in the art to understand and read, and are not intended to limit the conditions under which this utility model can be implemented. Therefore, they have no substantial technical significance. Any modification to the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in this utility model, provided that it does not affect the effects and purposes that this utility model can produce. It should be noted that in this specification, relational terms such as "first" and "second" are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.
[0034] The present invention provides the following embodiments.
[0035] like Figure 1 As shown, this utility model discloses a complete set of small needle knives for tenosynovitis and nerve entrapment diseases, including a round needle knife 1, a probe 2, a separating needle 3, a hook needle knife 4, and a storage box 5 for storing the above needle knives.
[0036] like Figure 2 As shown, the circular needle knife 1 includes a circular needle knife handle 11 and a circular needle knife body 12 fixed on the circular needle knife handle 11. The needle tip of the circular needle knife body 12 has an arc-shaped outer arc cutting edge 13.
[0037] like Figure 3 As shown, the probe 2 includes a probe handle 21 and a probe body 22 fixed on the probe handle 21. The tip of the probe body 22 is a spherical probe 23. The diameter of the probe 23 is larger than the diameter of the probe body 22. Generally, the diameter of the probe 23 can be 1.3-2 times the diameter of the probe body 22.
[0038] like Figure 5 As shown, the separation needle 3 includes a separation needle handle 31 and a separation needle body 32 fixed on the separation needle handle 31. The needle tip of the separation needle body 32 is conical.
[0039] like Figure 7 As shown, the crochet knife 4 includes a crochet knife handle 41 and a crochet knife needle body 42 fixed on the crochet knife handle 41. The needle tip of the crochet knife needle body 42 is bent into an arc shape, and an inner arc blade 43 is opened on the inner side of the arc-shaped needle tip.
[0040] The width of the outer arc cutting edge 13 in the circular needle knife 1 is greater than the diameter of the probe 23 on the probe 2. The width of the arc-shaped needle head in the hook needle knife 4 is less than or equal to the diameter of the probe 23 on the probe 2, and also less than or equal to the diameter of the separating needle body 32. Generally, the width of the outer arc cutting edge 13 is 1.3-2 times the diameter of the probe 23, the width of the arc-shaped needle head in the hook needle knife 4 is 0.8-1 times the diameter of the probe 23, and the diameter of the separating needle body 32 can be the same as the diameter of the probe 23.
[0041] As a needle knife suitable for acupuncture on the fingers or wrist, the diameter of the round needle knife body 12 in the round needle knife 1 can be 2mm, and the corresponding width of the outer arc blade 13 is also 2mm. The diameter of the probe 23 in the probe 2 can be 1.5-2mm. The diameter of the separating needle body 32 in the separating needle 3 can be 1.5-2mm. The diameter of the hook needle body 42 in the hook needle knife 4 can be 1mm, and the width of the arc-shaped needle head can be 1.5-2mm, that is, the width of the inner arc blade 43 can be 0.5-1mm.
[0042] like Figure 4 As shown, this utility model also includes a second probe 6, which includes a second probe handle 61 and a second probe needle body 62 fixed to the second probe handle 61. The tip of the second probe needle body 62 is a spherical probe 63. The second probe needle body 62 is generally arc-shaped, and the diameters of the second probe needle body 62 and the second probe 63 are the same as the diameters of the first probe needle body 22 and the first probe 23, respectively. Generally, the curvature of the second probe needle body 62 is adapted to the curvature of the fingers when the palm is naturally flat. The diameter of the second probe 63 can be 1.5-2mm.
[0043] like Figure 6 As shown, this utility model also includes a second separating needle 7, which includes a second separating needle handle 71 and a second separating needle body 72 fixed to the second separating needle handle 71. The needle tip of the second separating needle body 72 is conical, and the entire second separating needle body 72 is arc-shaped. The diameter of the second separating needle body 72 is the same as the diameter of the first separating needle body 32. Generally, the arc of the second separating needle body 72 is adapted to the arc of the fingers when the palm is naturally flat. The diameter of the second separating needle body 72 can be 1.5-2mm.
[0044] like Figure 8 As shown, this utility model also includes a second crochet hook knife 8, which includes a second crochet hook knife handle 81 and a second crochet hook knife body 82 fixed to the second crochet hook knife handle 81. The needle tip of the second crochet hook knife body 82 is bent into a barb shape, and a straight cutting edge 83 is opened on the inner side of the barb-shaped needle tip. The width of the barb-shaped needle tip in the second crochet hook knife 8 is the same as the width of the arc-shaped needle tip in the first crochet hook knife 7. The diameter of the second crochet hook knife body 82 can be 1mm, the width of the barb-shaped needle tip can be 1.5-2mm, that is, the width of the straight cutting edge 83 can be 0.5-1mm.
[0045] like Figure 1 As shown, the storage box 5 includes a box body 51, a box lid 52 and an inner liner 53. The box lid 52 is hinged to the box body 51, and the inner liner 53 fills the inside of the box body 51. The top surface of the inner liner 53 is flush with the top surface of the box body 51, and the inner liner 53 is provided with a groove 54 that is adapted to the shape of each needle knife. Each needle knife is placed in the corresponding groove 54.
[0046] The procedure for treating tenosynovitis using this invention is as follows.
[0047] 1. Location and pinpointing: Place the palm of the affected hand flat on the treatment table with the palm facing up, and mark the point where you feel a hard nodule or tenderness at the transverse crease of the palmar side of the affected finger.
[0048] 2. Disinfection: Use iodine solution for routine disinfection of the affected skin.
[0049] 3. Anesthesia: Lidocaine hydrochloride injection was used to perform subcutaneous infiltration anesthesia at the marked point.
[0050] 4. Small needle knife operation: First, hold the round needle knife 1 at a 90° angle to the affected area, with the blade line parallel or consistent with the diseased tendon sheath. After cutting the skin, use probe 2 or separating needle 3 to separate the tissue down to the bone surface of the lesion. Then, use hook needle knife 4 or hook needle knife 2 8 to cut the diseased tendon sheath or compression along the tunnel formed by probe 2 or separating needle 3. If there is a hard nodule, cut it open. After the operation, the patient can immediately feel that there is no more pressure symptoms at the affected area.
[0051] 5. Rehabilitation and Precautions: After surgery, bandage the wound with gauze or cover it with a wound dressing. Avoid getting the needle hole wet for 72 hours to prevent infection. Also, maintain light movement of the affected finger and perform appropriate large-amplitude palmar and dorsiflexion movements. Avoid fatigue, trauma, and exposure to cold to the affected finger.
[0052] In the above procedure, if special circumstances arise, such as when the fingers are bent, it is inconvenient to operate the probe 2 or the separation needle 3 in the straight needle state to separate the tissue. In such cases, the probe 6 or the separation needle 7 in the curved needle state can be used.
[0053] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A complete set of small needle knives for tenosynovitis and nerve entrapment diseases, characterized in that: Includes a round needle knife (1), a probe (2), a separating needle (3), a hook needle knife (4) for use together, and a storage box (5) for storing the above needle knives; The circular needle knife (1) includes a circular needle knife handle (11) and a circular needle knife body (12) fixed on the circular needle knife handle (11). The needle tip of the circular needle knife body (12) has an arc-shaped outer arc cutting edge (13). The probe one (2) includes a probe one handle (21) and a probe one needle body (22) fixed on the probe one handle (21). The needle tip of the probe one needle body (22) is a spherical probe one (23), and the diameter of the probe one (23) is larger than the diameter of the probe one needle body (22). The separation needle (3) includes a separation needle handle (31) and a separation needle body (32) fixed on the separation needle handle (31). The needle tip of the separation needle body (32) is conical. The crochet knife (4) includes a crochet knife handle (41) and a crochet knife needle body (42) fixed on the crochet knife handle (41). The needle tip of the crochet knife needle body (42) is bent into an arc shape, and an inner arc blade (43) is opened on the inner side of the arc-shaped needle tip. The width of the outer arc edge (13) on the circular needle knife (1) is greater than the diameter of the probe (23) on the probe (2). The width of the arc-shaped needle head in the hook needle knife (4) is less than or equal to the diameter of the probe (23) on the probe (2), and also less than or equal to the diameter of the needle body (32) of the separating needle.
2. The complete small needle knife set for tendosynovitis and nerve compression disease according to claim 1, characterized in that: It also includes a second probe (6), which includes a second probe handle (61) and a second probe needle body (62) fixed on the second probe handle (61). The needle tip of the second probe needle body (62) is a spherical probe (63). The second probe needle body (62) is arc-shaped as a whole. The diameters of the second probe needle body (62) and the second probe (63) are the same as the diameters of the first probe needle body (22) and the first probe (23), respectively.
3. The kit according to claim 2, wherein the kit is used for treating tendovaginitis and nerve compression diseases. It also includes a second separation needle (7), which includes a second separation needle handle (71) and a second separation needle body (72) fixed on the second separation needle handle (71). The needle tip of the second separation needle body (72) is conical, and the entire second separation needle body (72) is arc-shaped. The diameter of the second separation needle body (72) is the same as the diameter of the first separation needle body (32).
4. A complete set of small needle knives for tenosynovitis and nerve entrapment diseases according to claim 3, characterized in that: It also includes a second crochet knife (8), which includes a second crochet knife handle (81) and a second crochet knife needle body (82) fixed on the second crochet knife handle (81). The needle tip of the second crochet knife needle body (82) is bent into a barb shape, and a straight cutting edge (83) is opened on the inside of the barb-shaped needle tip. The width of the barb-shaped needle tip in the second crochet knife (8) is the same as the width of the arc-shaped needle tip in the first crochet knife (4).
5. The complete small needle knife for tendosynovitis and nerve compression disease according to claim 1 or 4, characterized in that: The storage box (5) includes a box body (51), a box lid (52) and an inner liner (53). The box lid (52) is hinged to the box body (51). The inner liner (53) is filled inside the box body (51). The top surface of the inner liner (53) is flush with the top surface of the box body (51). The inner liner (53) is provided with grooves (54) that are adapted to the shape of each needle knife. Each needle knife is placed in the corresponding groove (54).