Pain relief catgut embedding device based on floating needle principle

Abstract

The utility model provides a based on the principle of float needle's analgesic buried line needle device belongs to medical instrument technical field, including medical plastic handle still includes: antiskid line, opens in the surface of medical plastic handle, the outside of medical plastic handle bottom end is clamped and is connected with the protection cylinder, stainless steel needle body, is fixed in the inside of medical plastic handle, wire structure, sets up at the middle segment position department of stainless steel needle body, pushes and sends the needle core, inserts in the inside of stainless steel needle body top -end, guide structure, sets up at the bottom of silica gel antiskid push handle. In the utility model, through adopting flat oblique cutting needle tip control needle depth, reduce the stimulation to nerve and blood vessel, reduce the pain, special push mechanism and line body conveying channel cooperate simultaneously, will reduce the push deviation, thereby realized this device's shallow pain and stable buried line double function, promoted patient compliance and treatment accuracy.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to analgesic thread embedding needle device based on the floating needle principle. Background Technology

[0002] In the field of TCM clinical treatment, thread embedding therapy, with its advantage of long-term stimulation of acupoints, is widely used in the management of chronic diseases; while floating needle therapy, with its characteristic of superficial needling and analgesia, has become an important means of pain management. With the development of integrated TCM and Western medicine treatment models, the clinical demand for these two techniques continues to grow, and the iteration speed of related equipment is accelerating.

[0003] Currently used thread embedding devices have significant technical limitations: traditional thread embedding needles use a sharp needle tip design, and the insertion depth needs to reach the muscle layer (usually 2-3 cm). During the puncture process, it is easy to stimulate subcutaneous nerve endings and vascular plexuses, resulting in patients' VAS pain scores generally reaching 4-6 points. About 30% of patients discontinue treatment due to insufficient pain tolerance. At the same time, most existing thread embedding needles use an integrated push structure, and the thread push deviation rate is as high as 15%, which directly affects the accuracy of treatment.

[0004] While existing floating needle devices offer the advantage of shallow insertion (insertion depth 0.3–0.5 cm), their solid needle structure or limited drainage channels prevent stable implantation of sutures (0.2–0.5 mm in diameter). In clinical practice, when using modified floating needles for suture implantation, the suture detachment rate exceeds 40%, and due to the lack of a dedicated pushing mechanism, the implantation position deviation exceeds 2 mm in 65% of cases, failing to meet clinical treatment requirements.

[0005] In summary, the lack of specialized instruments in the current technology that simultaneously satisfy the dual functions of "superficial acupuncture analgesia" and "stable thread embedding" restricts the synergistic application of thread embedding therapy and floating needle technology. Utility Model Content

[0006] This invention provides an analgesic embedding needle device based on the floating needle principle, which solves the problems mentioned in the background art.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0008] Embodiments of this utility model provide an analgesic embedding needle device based on the floating needle principle, including a medical plastic handle, and further comprising:

[0009] Anti-slip texture is formed on the surface of the medical plastic handle, and a protective sleeve is snapped onto the outer side of the bottom end of the medical plastic handle;

[0010] A stainless steel needle body is fixed inside a medical plastic handle, and a flat, obliquely cut needle tip is fixed at the bottom of the stainless steel needle body;

[0011] The inlet structure is located in the middle section of the stainless steel needle body and is used to introduce the wire into the interior of the stainless steel needle body.

[0012] The push needle core is inserted inside the top of the stainless steel needle body, and a silicone anti-slip push handle is fixed to the top of the push needle core.

[0013] A guide structure, located at the bottom of the silicone anti-slip push handle, is used to guide the movement of the push needle core.

[0014] Through the above technical solutions, the medical plastic handle provides a stable grip, its surface anti-slip texture increases friction to prevent slippage during operation, the protective sleeve can protect the flat oblique needle tip, the stainless steel needle body, together with the flat oblique needle tip, enables shallow puncture and reduces pain, the suture inlet structure ensures stable suture insertion, the push needle core and the silicone anti-slip push handle work together to accurately push the suture, and the guide structure ensures stable pushing direction. The coordinated action of all components achieves the dual functions of shallow puncture analgesia and stable suture embedding, improving the convenience of operation and treatment effect.

[0015] Furthermore, the inlet structure includes an inlet tube fixed at the middle section of the stainless steel needle body, a guide bucket fixed on one side of the top of the inlet tube, a storage compartment inside one side of the medical plastic handle, a rotating groove on the outer wall of the medical plastic handle, and a rotating ring rotatably connected inside the rotating groove.

[0016] Through the above technical solution, the inlet tube can be stably fixed in the middle section of the stainless steel needle body to guide the wire. The guide bucket reduces the difficulty of guiding the wire through the trumpet-shaped structure. The storage compartment can protect the inlet tube. The rotating ring can open and close the storage compartment by rotating in the rotating groove, thereby ensuring the convenience and safety of the wire inlet structure.

[0017] Furthermore, a notch matching the storage compartment is provided on one side of the rotating ring, and the width of the storage compartment is greater than the diameter of the inlet pipe.

[0018] Through the above technical solution, the rotating ring notch cooperates with the storage compartment to expose or store the inlet pipe. The width of the storage compartment is adapted to the inlet pipe, thereby protecting the inlet pipe and preventing damage during non-operation.

[0019] Furthermore, the guide structure includes movable frames fixed on both sides of the bottom end of the silicone anti-slip push handle, a movable groove that is slidably connected to the movable frames is opened inside the top of the medical plastic handle, a return spring is fixed at the bottom end of the silicone anti-slip push handle, and a top plate is fixed at the bottom end of the return spring.

[0020] Through the above technical solution, the sliding cooperation between the moving frame and the moving slot can accurately guide the movement direction of the push needle core, avoiding deviation during the push process. The reset spring contracts and stores potential energy when pressed, and releases potential energy when released to drive the push needle core to automatically retract, which improves the convenience of operation and the push accuracy to a certain extent.

[0021] Furthermore, the stainless steel needle body and the flat oblique needle tip are made of 316L medical stainless steel. The stainless steel needle body has a through hollow channel in the axial direction, and the tip angle of the flat oblique needle tip is 30 degrees.

[0022] Through the above technical solutions, 316L medical stainless steel ensures biocompatibility, the through-hole channel provides a path for the delivery of the suture, and the flat needle tip with a 30-degree cutting angle reduces puncture resistance, minimizes tissue damage, and is suitable for shallow puncture requirements.

[0023] Furthermore, the push needle core is made of 316L stainless steel, and the bottom end of the push needle core has a rounded arc surface structure.

[0024] Through the above technical solutions, 316L stainless steel ensures the strength and compatibility of the push needle core, the rounded arc surface avoids tissue damage during push, and can evenly transmit the push force to accurately deliver the filament to the target position and control the deviation.

[0025] Furthermore, the inlet tube is made of transparent polycarbonate and is connected to the middle side of the stainless steel needle body at a 30-45 degree angle.

[0026] Through the above technical solutions, the transparent material facilitates observation of the line status, the 30-45 degree angle design reduces the line turning resistance and reduces jamming, and the properties of polycarbonate ensure the durability and stability of the inlet tube.

[0027] The above-described solution of this utility model has at least the following beneficial effects:

[0028] 1. This utility model uses a flat, obliquely cut needle tip to control the depth of needle insertion, reducing stimulation to nerves and blood vessels and alleviating pain. At the same time, the dedicated pushing mechanism works in conjunction with the suture delivery channel to reduce pushing deviation. Thus, this device achieves the dual functions of superficial puncture analgesia and stable suture embedding, improving patient compliance and treatment accuracy.

[0029] 2. This utility model achieves the moving guide function of the device by sliding the movable frame and the movable groove together, and at the same time, the reset spring assists in the reset. This ensures that the push needle core moves in a straight line, avoids deviation or bending, simplifies the operation to a certain extent, and improves the pushing stability. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the overall disassembly structure of this utility model;

[0033] Figure 4 A three-dimensional structural diagram of the guide structure provided by this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Medical plastic handle; 2. Anti-slip texture; 3. Protective sleeve; 4. Stainless steel needle body; 5. Inlet structure; 501. Inlet tube; 502. Storage compartment; 503. Rotating ring; 504. Guide hopper; 505. Rotating groove; 6. Guide structure; 601. Moving frame; 602. Return spring; 603. Top plate; 604. Moving groove; 7. Silicone anti-slip push handle; 8. Push needle core; 9. Flat oblique cut needle tip. Detailed Implementation

[0036] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0037] like Figures 1 to 4 As shown, an embodiment of this utility model provides an analgesic embedding needle device based on the floating needle principle, including a medical plastic handle 1, and further comprising:

[0038] Anti-slip texture 2 is formed on the surface of the medical plastic handle 1, and a protective sleeve 3 is snapped onto the outer side of the bottom end of the medical plastic handle 1;

[0039] A stainless steel needle body 4 is fixed inside the medical plastic handle 1, and a flat oblique needle tip 9 is fixed at the bottom end of the stainless steel needle body 4.

[0040] The wire inlet structure 5 is located in the middle section of the stainless steel needle body 4 and is used to introduce the wire into the interior of the stainless steel needle body 4.

[0041] The push needle core 8 is inserted inside the top of the stainless steel needle body 4, and the top of the push needle core 8 is fixed with a silicone anti-slip push handle 7.

[0042] The guide structure 6 is located at the bottom of the silicone anti-slip push handle 7 and is used to guide the movement of the push needle core 8.

[0043] The stainless steel needle body 4 and the flat oblique needle tip 9 are made of 316L medical stainless steel. The stainless steel needle body 4 has a through hollow channel in the axial direction. The tip of the flat oblique needle tip 9 has a cutting edge angle of 30 degrees. The push needle core 8 is made of 316L stainless steel. The bottom of the push needle core 8 has a rounded arc surface structure.

[0044] In this embodiment of the invention, in the initial state, the protective sleeve 3 is engaged with the outer side of the top of the medical plastic handle 1, providing protection for the flat, obliquely cut needle tip 9 at the bottom of the stainless steel needle body 4. Simultaneously, the storage compartment 502 is used to store and protect the inlet tube 501, preventing accidental damage during non-operational periods. When performing the suture embedding operation, the protective sleeve 3 is first removed, and the suture is inserted into the stainless steel needle body 4 through the inlet tube 501. The operator holds the medical plastic handle 1, and the anti-slip texture 2 increases the friction between the hand and the medical plastic handle 1, preventing slippage during operation and ensuring a stable needle insertion angle. Then, combined with the 30-degree tip angle of the flat, obliquely cut needle tip 9, the insertion angle is... A shallow puncture angle of 15-30 degrees is used to puncture the skin, allowing the needle tip to smoothly enter the subcutaneous fat layer. Due to the shallow puncture design and the low resistance characteristics of the flat oblique cut needle tip 9, stimulation of subcutaneous nerve endings and vascular plexuses is reduced to a certain extent, reducing patient pain. When the flat oblique cut needle tip 9 reaches a depth of 0.8cm under the skin, it stops moving and pushes the silicone anti-slip push handle 7, which drives the push needle core 8 to move within the through hollow channel of the stainless steel needle body 4, so that the push needle core 8 accurately pushes the thread to the target position. Then, keeping the push needle core 8 in the same position, the stainless steel needle body 4 is slowly withdrawn at the original angle, so that the thread stays in the subcutaneous tissue. At this time, the push needle core 8 can be pulled out to complete the thread embedding operation.

[0045] It should be noted that the stainless steel needle body 4 can be replaced with TC4 titanium alloy, which has a biocompatibility level that meets the ISO10993-4 standard and is suitable for patients with allergies. The flat oblique needle tip 9 can adopt a rounded arc design to reduce the area of ​​tissue damage during puncture.

[0046] like Figures 1 to 4 As shown, the inlet structure 5 includes an inlet tube 501 fixed at the middle section of the stainless steel needle body 4. A guide bucket 504 is fixed to one side of the top of the inlet tube 501. A storage compartment 502 is opened inside one side of the medical plastic handle 1. A rotating groove 505 is opened on the outer wall of the medical plastic handle 1. A rotating ring 503 is rotatably connected inside the rotating groove 505. A notch matching the storage compartment 502 is opened on one side of the rotating ring 503. The width of the storage compartment 502 is greater than the diameter of the inlet tube 501. The inlet tube 501 is made of transparent polycarbonate. The inlet tube 501 is connected to the middle section side of the stainless steel needle body 4 at a 30-45 degree angle.

[0047] In this embodiment of the invention, before inserting the suture, the operator rotates the rotating ring 503 inside the rotating groove 505, aligning the notch on one side of the rotating ring 503 with the storage compartment 502 inside the medical plastic handle 1, thereby exposing the inlet tube 501 stored in the storage compartment 502. When threading the suture, the suture is inserted into the inlet tube 501 through the guide bucket 504 on one side of the top of the inlet tube 501. Due to the trumpet-shaped design of the guide bucket 504, the alignment difficulty during suture insertion is reduced to a certain extent. The inlet tube 501 is made of transparent polycarbonate, and the operator can observe the movement of the suture through the tube wall to ensure that the suture smoothly enters the hollow channel of the stainless steel needle body 4. After the suture insertion operation is completed, the inlet tube 501 is placed in the storage compartment 502, and the rotating ring 503 is rotated to offset its notch from the storage compartment 502, thereby protecting the inlet tube 501 and preventing it from being damaged by external impact.

[0048] like Figures 1 to 4 As shown, the guide structure 6 includes a movable frame 601 fixed on both sides of the bottom end of the silicone anti-slip push handle 7. The top end of the medical plastic handle 1 has a movable groove 604 that is slidably connected to the movable frame 601. A return spring 602 is fixed at the bottom end of the silicone anti-slip push handle 7, and a top plate 603 is fixed at the bottom end of the return spring 602.

[0049] In this embodiment of the invention, when the thread needs to be pushed, the operator presses down the silicone anti-slip push handle 7, causing the moving frame 601 to slide within the moving groove 604. The cooperation between the moving frame 601 and the moving groove 604 guides the movement direction of the push needle core 8, ensuring that the push needle core 8 moves in a straight line to a certain extent and preventing the push needle core 8 from bending and breaking due to deviation in the pushing direction. When the silicone anti-slip push handle 7 pushes the thread into the subcutaneous tissue downward, the top plate 603 contacts the top of the medical plastic handle 1, causing the return spring 602 to be compressed and contract. After the stainless steel needle 4 exits the skin, the operator releases the silicone anti-slip push handle 7, causing the return spring 602 to release its elastic potential energy, pushing the silicone anti-slip push handle 7 upward, thereby pulling out the push needle core 8. This simplifies the operation process to a certain extent and avoids bending of the push needle core 8 due to shaking.

[0050] The above are preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. Analgesic embedding needle device based on the floating needle principle, comprising a medical plastic handle (1), characterized in that, Also includes: Anti-slip texture (2) is formed on the surface of the medical plastic handle (1), and a protective cylinder (3) is snapped onto the outer side of the bottom end of the medical plastic handle (1). A stainless steel needle body (4) is fixed inside a medical plastic handle (1), and a flat oblique needle tip (9) is fixed at the bottom end of the stainless steel needle body (4). The wire inlet structure (5) is located in the middle section of the stainless steel needle body (4) and is used to introduce the wire into the interior of the stainless steel needle body (4). The push needle core (8) is inserted into the inside of the top of the stainless steel needle body (4), and the top of the push needle core (8) is fixed with a silicone anti-slip push handle (7). A guide structure (6) is provided at the bottom of the silicone anti-slip push handle (7) to guide the movement of the push needle core (8).

2. The analgesic embedding needle device based on the floating needle principle according to claim 1, characterized in that, The inlet structure (5) includes an inlet tube (501) fixed at the middle section of the stainless steel needle body (4), a guide bucket (504) fixed on one side of the top of the inlet tube (501), a storage compartment (502) is provided inside one side of the medical plastic handle (1), a rotating groove (505) is provided on the outer side wall of the medical plastic handle (1), and a rotating ring (503) is rotatably connected inside the rotating groove (505).

3. The analgesic embedding needle device based on the floating needle principle according to claim 2, characterized in that, The rotating ring (503) has a notch on one side that matches the storage compartment (502), and the width of the storage compartment (502) is greater than the diameter of the inlet pipe (501).

4. The analgesic embedding needle device based on the floating needle principle according to claim 1, characterized in that, The guide structure (6) includes a movable frame (601) fixed on both sides of the bottom end of the silicone anti-slip push handle (7). The top end of the medical plastic handle (1) is provided with a movable groove (604) that is slidably connected to the movable frame (601). The bottom end of the silicone anti-slip push handle (7) is fixed with a return spring (602), and the bottom end of the return spring (602) is fixed with a top plate (603).

5. The analgesic embedding needle device based on the floating needle principle according to claim 1, characterized in that, The stainless steel needle body (4) and the flat oblique needle tip (9) are made of 316L medical stainless steel. The stainless steel needle body (4) has a through hollow channel in the axial direction. The tip of the flat oblique needle tip (9) has a cutting angle of 30 degrees.

6. The analgesic embedding needle device based on the floating needle principle according to claim 1, characterized in that, The push needle core (8) is made of 316L stainless steel, and the bottom end of the push needle core (8) has a rounded arc surface structure.

7. The analgesic embedding needle device based on the floating needle principle according to claim 2, characterized in that, The inlet tube (501) is made of transparent polycarbonate and is connected to the middle side of the stainless steel needle body (4) at a 30-45 degree angle.

Images