A clicker and its application in perioperative preemptive analgesia of hip surgery in the elderly

Abstract

The application provides a press needle and application thereof in preoperative analgesia of hip surgery of the elderly, and belongs to the technical field of traditional Chinese medicine acupuncture and intradermal needle. The press needle comprises a base and a needle body, the needle body is arranged on one side of the base, a needle seat is connected between the base and the needle body, and the needle seat is used for increasing the stress area of the tail end of the needle body. When the press needle is inserted into the human skin, the degradable wire is accommodated into the side wall of the needle body and is implanted into the human skin together with the needle body. In the treatment period, when the needle body is withdrawn from the human skin, the degradable wire is gathered to the tip of the needle body by the friction between the degradable wire and the tissue, so that the resistance during withdrawal is increased, the problem of easy falling is avoided, the material of the degradable wire can be absorbed by the human body, after the degradable wire is absorbed by the human body at the end of the treatment period, the needle body can be easily taken out from the human body, and the requirement of the needle body fixation of the elderly patients is met. The tip of the needle body is accommodated by the needle seat and the hidden pin mechanism before and after the use of the press needle.

Description

Technical Field

[0001] This invention relates to a press needle, specifically a press needle and its application in preoperative analgesia during hip surgery in the elderly, belonging to the field of intradermal needle technology in traditional Chinese medicine acupuncture. Background Technology

[0002] With the increasing aging population, the incidence of hip fractures in the elderly has risen significantly, seriously threatening their health and normal lives. Given the numerous impacts of hip fractures, surgery is currently the preferred treatment, helping patients restore normal joint function and thus improving their quality of life. However, elderly individuals often have multiple underlying medical conditions, leading to poor tolerance to surgical trauma and anesthesia. This not only results in severe postoperative pain but also hinders early functional exercises and rehabilitation, prolonging treatment time and reducing its effectiveness. Press needles are a type of intradermal needle, commonly used in minimally invasive superficial needling in Traditional Chinese Medicine. They generally consist of a needle body and a base fixed with adhesive tape. By inserting the needle body into the skin or subcutaneous tissue of specific acupoints, the acupoints are stimulated by a continuous, weak needling sensation to exert a therapeutic effect. Compared to traditional acupuncture, press needles are simple to operate, provide gentle and lasting stimulation, do not restrict patient movement, and are relatively safe.

[0003] Existing press needles rely on skin adhesion to fix the needle body inserted into the skin or subcutaneous tissue. However, since the skin of elderly patients' hips is usually loose and wrinkles are obvious when standing or lying down, simply relying on skin adhesion cannot meet the needs of needle fixation, and there is a problem of easy dislodgement during the treatment period. In addition, the needle tip of traditional press needles is usually exposed and perpendicular to the base, which leads to the risk of puncture injury before and during use, especially during the disposal and recycling stage.

[0004] A Chinese patent entitled "A Direct Press Needle" (publication number CN112237541B) discloses a direct press needle technology. By fixing the press needle inside a blister pack and ensuring that the end of the needle does not protrude from the blister pack, the problem of adhesive tape sticking together is avoided. It is quick and convenient to operate and can achieve rapid and accurate insertion of the press needle into acupoints. However, it still has the problems of easy detachment and the risk of puncture during the disposal and recycling stage. Therefore, a press needle and its application in perioperative preoperative analgesia for elderly hip surgery are proposed. Summary of the Invention

[0005] In view of this, the present invention provides a press needle and its application in preoperative analgesia during the perioperative period of hip surgery in the elderly, so as to solve or alleviate the technical problems existing in the prior art, or at least provide a beneficial option.

[0006] The technical solution of this invention is implemented as follows: A press needle includes a base and a needle body. The needle body is disposed on one side of the base. A needle seat is connected between the base and the needle body to increase the force-bearing area at the tail end of the needle body. A pin-hiding mechanism is provided between the needle body and the needle seat to house the tip of the needle body. A degradation filament is provided on the outer middle part of the needle body from the tip to the tail end. Both ends of the degradation filament are housed to the inner sidewall of the needle body near the tail end and are free ends.

[0007] More preferably, the outer wall of the needle body has a micropore near the tip, the middle part of the degradation filament is fixedly connected to the inner wall of the micropore, and both ends of the degradation filament are slidably connected to the inner wall of the needle body.

[0008] More preferably, one side of the substrate is provided with an adhesive portion.

[0009] More preferably, the substrate surface has two symmetrically formed arc-shaped grooves.

[0010] More preferably, the nail-concealing mechanism includes a spring piece, a connecting part, and a locking groove; The spring and the needle seat are an integral structure, the connecting part is located at the tail end of the needle body, and there are two locking grooves, which are opened perpendicularly to each other on the outer side wall of the connecting part.

[0011] More preferably, the needle holder consists of two separate umbrella-shaped parts, which are embedded and symmetrically fixed to one side of the base. There are two connecting parts, which are integrally formed with the needle body and are T-shaped in general. The two connecting parts are rotatably connected to the inner sidewalls of the two umbrella-shaped parts respectively. There are four spring pieces, which are symmetrically integrally formed on the inner sidewalls of the two umbrella-shaped parts and are correspondingly set with locking grooves on the two connecting parts.

[0012] More preferably, the needle seat is an integral convex ring, which is embedded and fixedly connected to one side of the base. There is one connecting part, which is integrally formed with the needle body and is L-shaped. The connecting part is rotatably connected to the inner sidewall of one end of the convex ring. There are two spring pieces, which are symmetrically integrally formed on the inner sidewall of one end of the convex ring and are correspondingly set with two locking grooves on the connecting part.

[0013] More preferably, the needle holder is an integral convex circular part, fixedly connected to the inner sidewall of the base, and the tail end of the needle body is fixedly connected to the middle of the lower surface of the needle holder. The nail hiding mechanism includes a double cavity, a rubber sleeve, a storage groove and a connecting rib. The dual drum cavity is located inside the base. The inner wall of the rubber sleeve is slidably connected to the outer wall of the needle body. The receiving groove is opened at the bottom of the convex circular part. The outer wall of the rubber sleeve is slidably connected to the inner wall of the receiving groove. The connecting ribs are a number of ones, which are distributed in a ring and fixedly connected to the inner wall of the base.

[0014] More preferably, the needle holder is an integral round plate, fixedly connected to the upper surface of the base, the tail end of the needle body is fixedly connected to the middle of the lower surface of the needle holder, and the nail hiding mechanism includes a single drum cavity. The single drum cavity is located between the disc and the upper surface of the substrate.

[0015] An application of press needles in preoperative analgesia during the perioperative period of hip surgery in elderly patients, wherein the press needles are inserted into the bilateral Hegu and bilateral Taichong acupoints for 1-3 days.

[0016] The embodiments of the present invention have the following advantages due to the adoption of the above technical solutions: This invention utilizes biodegradable fibers that are housed on the side wall of the press needle when it is inserted into the skin. During the treatment cycle, when the needle is withdrawn, the friction between the biodegradable fibers and the tissue causes them to converge towards the needle tip, increasing resistance during removal and preventing easy dislodgement. Furthermore, the biodegradable fibers are absorbable by the body. After the treatment cycle ends and the fibers are absorbed, the needle can be easily removed, meeting the needs of elderly patients requiring needle fixation.

[0017] This invention increases the force-bearing area at the tail end of the needle by utilizing the needle holder, and can be combined with a nail-concealing mechanism to store the tip of the needle before and after use, which can effectively reduce the risk of puncture and make it easier to dispose of and recycle.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural diagram of Embodiment 1 of the present invention; Figure 2 This is a bottom view structural diagram of Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the structure of the umbrella-shaped component of the present invention; Figure 4 This is an exploded view of Embodiment 1 of the present invention; Figure 5This is a schematic diagram of the structure of Embodiment 2 of the present invention; Figure 6 This is a bottom view of the structure of Embodiment 2 of the present invention; Figure 7 This is a schematic diagram of the structure of the convex ring component of the present invention; Figure 8 This is an exploded view of Embodiment 2 of the present invention; Figure 9 This is a schematic diagram of the structure of Embodiment 3 of the present invention; Figure 10 This is a bottom view of the structure of Embodiment 3 of the present invention; Figure 11 This is a cross-sectional structural diagram of Embodiment 3 of the present invention; Figure 12 This is a schematic diagram of the structure of Embodiment 4 of the present invention; Figure 13 This is a cross-sectional structural diagram of Embodiment 4 of the present invention; Figure 14 This is a bottom view of the structure of Embodiment 4 of the present invention.

[0021] Reference numerals: 1. Base; 2. Needle body; 3. Needle seat; 4. Hidden pin mechanism; 401. Spring piece; 402. Connecting part; 403. Locking groove; 411. Double drum cavity; 412. Rubber sleeve; 413. Storage groove; 414. Connecting rib; 421. Single drum cavity; 51. Micropore; 52. Degradable filament; 53. Arc groove; 54. Adhesive part. Detailed Implementation

[0022] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0023] It is important to note that terms such as "first," "second," "symmetric," and "array" are used only to distinguish between descriptive and positional descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified with terms such as "first" or "symmetric" may explicitly or implicitly include one or more of that feature; similarly, when the quantity of certain features is not limited by words such as "two" or "three," it should be noted that such features also explicitly or implicitly include one or more features.

[0024] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Example

[0025] like Figures 1-4As shown, this embodiment of the invention provides a press needle, including a base 1 and a needle body 2. The needle body 2 is disposed on one side of the base 1. A needle seat 3 is connected between the base 1 and the needle body 2 to increase the force-bearing area at the tail end of the needle body 2. A pin-hiding mechanism 4 is provided between the needle body 2 and the needle seat 3 to house the tip of the needle body 2. A degradation filament 52 is provided on the outer middle part of the needle body 2 from the tip to the tail end. Both ends of the degradation filament 52 are housed to the inner sidewall of the needle body 2 near the tail end and are free ends.

[0026] In one embodiment, a micropore 51 is provided on the outer side wall of the needle body 2 near the tip, the middle part of the degradation filament 52 is fixedly connected to the inner side wall of the micropore 51, and both ends of the degradation filament 52 are slidably connected to the inner side wall of the needle body 2.

[0027] By utilizing the micropore 51, the degradation filament 52 can pass through the needle body 2, and the middle part of the degradation filament 52 is fixed inside the micropore 51.

[0028] The material of the biodegradable filament 52 is purified collagen, hyaluronic acid, catgut, and chitosan, which meets the requirement of complete degradation in 24-72 hours.

[0029] In one embodiment, an adhesive portion 54 is provided on one side of the base 1.

[0030] The base 1 is adhered and fixed to the skin surface by using the adhesive part 54.

[0031] In one embodiment, two arc-shaped grooves 53 are symmetrically formed on the surface of the substrate 1.

[0032] The arc-shaped groove 53 allows for individual pressing of a specific area of ​​the base 1.

[0033] In one embodiment, the nail-hiding mechanism 4 includes a spring piece 401, a connecting part 402, and a locking groove 403; Among them, the spring piece 401 and the needle seat 3 are integrated structures, the connecting part 402 is located at the tail end of the needle body 2, and there are two locking grooves 403, which are perpendicularly opened on the outer side wall of the connecting part 402.

[0034] The needle holder 3 consists of two separate umbrella-shaped parts, which are embedded and symmetrically fixed to one side of the base 1. There are two connecting parts 402, which are integrally formed with the needle body 2 and are T-shaped in general. The two connecting parts 402 are rotatably connected to the inner sidewalls of the two umbrella-shaped parts respectively. There are four spring pieces 401, which are symmetrically integrally formed on the inner sidewalls of the two umbrella-shaped parts and are correspondingly set with the locking grooves 403 on the two connecting parts 402.

[0035] By using the spring piece 401 in conjunction with the locking groove 403, the connecting parts 402 located on both sides of the needle body 2 are constrained, thereby achieving the fixation between the needle seat 3 and the needle body 2.

[0036] In operation, before use, the needle body 2 is moved by pressing the arc-shaped groove 53 on the back of the base 1. The moving needle body 2 causes the connecting part 402 to rotate within the umbrella-shaped part of the needle seat 3. The outer wall of the connecting part 402 compresses and stores the spring piece 401. When the needle body 2 is perpendicular to the needle seat 3, the two spring pieces 401 located on the two umbrella-shaped parts spring into the two locking grooves 403. The spring pieces 401 cooperate with the locking grooves 403 to initially constrain the connecting part 402, so as to ensure the stability of the needle body 2 during the use of the press needle.

[0037] In use, by pinching the arc-shaped groove 53 on the back of the base 1, the handle of the umbrella-shaped component and the end of the needle body 2 are pinched together. The press needle can then be moved to insert the needle body 2 into the skin of the patient's bilateral Hegu and Taichong acupoints. The degradable wire 52, when the needle body 2 is inserted into the skin, is constrained within the groove between the micropore 51 and the outer wall of the needle body 2. During the treatment cycle, when the needle body 2 is withdrawn from the skin, the free end of the degradable wire 52 converges towards the tip of the needle body 2 under the influence of friction with the tissue, increasing the overall outer diameter of the needle body 2 and the resistance to withdrawal, thus preventing easy dislodgement. It should be noted that the degradable wire 52 only increases the resistance to needle withdrawal to a limited extent, preventing accidental dislodgement during the treatment cycle. Direct removal of the press needle will not cause harm to the patient.

[0038] After the treatment cycle is completed, the degradable filament 52 is absorbed by the human body, and the resistance to withdrawal of the needle body 2 disappears. At this time, the press needle can be easily removed from the skin of the patient's bilateral Hegu and bilateral Taichong acupoints.

[0039] The adhesive part 54 is used to attach and fix the base 1 to the outside of the patient's skin after the needle body 2 is inserted into the skin of the patient's bilateral Hegu and Taichong acupoints.

[0040] During the disposal and recycling stage, after the press needle is removed from the patient's skin, the needle body 2 can be pushed to rotate the connecting part 402 within the umbrella-shaped component by pressing the arc-shaped groove 53 on the back of the base 1 again. When the needle body 2 moves to the other side of the same plane as the needle seat 3, the four spring pieces 401 on the two umbrella-shaped components are used to spring into the four locking grooves 403 on the two connecting parts 402. The spring pieces 401 cooperate with the locking grooves 403 to further constrain the connecting part 402, so as to prevent the tip of the needle body 2 from detaching from the two umbrella-shaped components during the disposal and recycling stage, thus reducing the risk of puncture. Example

[0041] like Figures 1-8As shown, this embodiment of the invention provides a press needle, including a base 1 and a needle body 2. The needle body 2 is disposed on one side of the base 1. A needle seat 3 is connected between the base 1 and the needle body 2 to increase the force-bearing area at the tail end of the needle body 2. A pin-hiding mechanism 4 is provided between the needle body 2 and the needle seat 3 to house the tip of the needle body 2. A degradation filament 52 is provided on the outer middle part of the needle body 2 from the tip to the tail end. Both ends of the degradation filament 52 are housed to the inner sidewall of the needle body 2 near the tail end and are free ends.

[0042] The needle holder 3 is an integral convex ring, which is embedded and fixedly connected to one side of the base 1. There is one connecting part 402, which is integrally formed with the needle body 2. The whole is L-shaped. The connecting part 402 is rotatably connected to the inner wall of one end of the convex ring. There are two spring pieces 401, which are symmetrically integrally formed on the inner wall of one end of the convex ring and are correspondingly set with the two locking grooves 403 on the connecting part 402.

[0043] The difference from Embodiment 1 is that the needle holder 3 is an integral structure, which improves its overall stability. The needle body 2 and the needle holder 3 are connected at only one end, which simplifies the overall structure of the press needle. The specific use and recycling method is the same as in Embodiment 1. Example

[0044] like Figures 1-11 As shown, this embodiment of the invention also provides a press needle, including a base 1 and a needle body 2. The needle body 2 is disposed on one side of the base 1. A needle seat 3 is connected between the base 1 and the needle body 2 to increase the force-bearing area at the tail end of the needle body 2. A nail-hiding mechanism 4 is provided between the needle body 2 and the needle seat 3 to house the tip of the needle body 2. A degradation filament 52 is provided on the outer middle part of the needle body 2 from the tip to the tail end. Both ends of the degradation filament 52 are housed to the inner sidewall of the needle body 2 near the tail end and are free ends.

[0045] The needle holder 3 is an integral convex round part, which is fixedly connected to the inner side wall of the base 1. The tail end of the needle body 2 is fixedly connected to the middle of the lower surface of the needle holder 3. The nail hiding mechanism 4 includes a double drum cavity 411, a rubber sleeve 412, a storage groove 413 and a connecting rib 414. The double drum cavity 411 is located inside the base 1. The inner wall of the rubber sleeve 412 is slidably connected to the outer wall of the needle body 2. The receiving groove 413 is opened at the bottom of the convex part. The outer wall of the rubber sleeve 412 is slidably connected to the inner wall of the receiving groove 413. There are several connecting ribs 414, which are distributed in a ring and fixedly connected to the inner wall of the base 1.

[0046] The difference from Embodiment 1 is that the base 1 adopts a double-layer structure as a whole, and the connecting ribs 414 are used to open up the double-layer structure of the base 1, so that a double cavities 411 are formed inside, which, together with the rubber sleeve 412, hides the tip of the needle body 2.

[0047] In use, by pinching the end of the needle holder 3, the entire press needle is moved. Then, by pressing the end of the needle holder 3, the needle body 2 is inserted into the skin, and the rubber sleeve 412 is confined outside the skin, sliding along the outer wall of the needle body 2 into the storage groove 413. When the needle body 2 is inserted to the specified depth, the double-layered base 1 overlaps, and the rubber sleeve 412 slides into the storage groove 413 for restraint, thereby counteracting the elasticity generated by the double-layered overlap of the connecting rib 414 and the base 1, ensuring the stability of the needle body 2 within the skin.

[0048] During the retrieval phase, after removing the entire press needle, by pressing the outermost layer of the double-folded base 1, the connecting rib 414 drives the rubber sleeve 412 to slide out of the storage groove 413 and move towards the tip of the needle body 2, so that the rubber sleeve 412 can be pushed back to the tip of the needle body 2 to hide it and reduce the risk of puncture during retrieval. Example

[0049] like Figures 1-14 As shown, this embodiment of the invention also provides a press needle, including a base 1 and a needle body 2. The needle body 2 is disposed on one side of the base 1. A needle seat 3 is connected between the base 1 and the needle body 2 to increase the force-bearing area at the tail end of the needle body 2. A nail-hiding mechanism 4 is provided between the needle body 2 and the needle seat 3 to house the tip of the needle body 2. A degradation filament 52 is provided on the outer middle part of the needle body 2 from the tip to the tail end. Both ends of the degradation filament 52 are housed to the inner sidewall of the needle body 2 near the tail end and are free ends.

[0050] The needle holder 3 is an integral round plate, which is fixedly connected to the upper surface of the base 1. The tail end of the needle body 2 is fixedly connected to the middle of the lower surface of the needle holder 3. The nail hiding mechanism 4 includes a single drum cavity 421. Among them, the single drum cavity 421 is located between the disc and the upper surface of the base 1.

[0051] The difference from Embodiment 3 is that the base 1 is a planar structure with a groove on the upper surface, and the needle seat 3 is a round plate with elastic and deformable properties. In the current state, the cavity below the round plate and the groove on the surface of the base 1 form a single drum cavity 421, which is used to store the needle body 2.

[0052] When in use, the bottom of the base 1 and the adhesive part 54 can be used to attach and fix the press needle to the designated position on the surface of the human skin. When it is necessary to insert the needle body 2 into the skin, simply press the round plate to make it move the needle body 2 into the human skin, while deforming and accumulating force in the sink groove. When the pressing is in place, the round plate deforms and gets stuck in the sink groove, the single bulge 421 disappears, and the press needle insertion operation can be completed.

[0053] During the recycling phase, after the press needle is removed as a whole, the disc inserted into the sinker can be reversed and reset by squeezing the center of the back of the base 1 or bending the needle seat 3, so as to re-form the single drum cavity 421 and store the needle body 2 as a whole. Example

[0054] An application of press needles in preoperative analgesia during the perioperative period of hip surgery in elderly patients, taking Example 4 as an example, involves inserting press needles into the bilateral Hegu and bilateral Taichong acupoints of the patient during the perioperative period of hip surgery in elderly patients for 1-3 days.

[0055] Control group: Routine treatment was administered. Psychological care was provided, including distracting the patient with music to alleviate negative emotions caused by pain at the fracture site. Close monitoring of the patient's vital signs and pain levels was maintained, and any problems were addressed promptly to minimize the adverse effects of pain, such as negative emotions or insomnia.

[0056] Observation group: In addition to routine treatment and nursing care, press-needle embedding therapy was administered. 48 hours prior to the procedure, the patient was instructed to assume a comfortable treatment position and ensure proper local hygiene. Bilateral Taichong and Hegu acupoints were marked. After the nurse cleaned her hands, she used one hand to stabilize the skin at the acupoint, and with the other hand, she used tweezers to insert the needle directly into the acupoint. The acupuncture site was then wrapped with hypoallergenic and breathable tape. The acupoints were pressed four times a day for one minute each time, adjusting the pressure according to the patient's tolerance. Approximately six hours were required between each session. After 48 hours of needle embedding, when removing the needles, one hand held the skin on both sides of the embedding area, while the other hand opened the tape on both sides. The press-needle was then quickly pulled out perpendicular to the skin while still holding the tape. A sterile dry cotton swab was used to press the puncture site for three minutes or until bleeding stopped.

[0057] Observation indicators: Pain scoring was performed using the Visual Analogue Scale (VAS) to record pain levels at rest and after activity at different postoperative time points. Specific scoring criteria and methods: A dedicated scale card with a 10-segment line was used. The leftmost point was 0, indicating no pain, and the rightmost point was 10, indicating the most severe and unbearable pain. The scores were divided into 1-9 points. Specific levels and descriptions: 0 points indicated no pain; 1-3 points indicated mild pain (mild pain, not affecting sleep or daily activities, generally tolerable); 4-6 points indicated moderate pain (significant pain, interfering with rest and sleep, limiting daily activities, requiring analgesic intervention); 7-10 points indicated severe pain (intense pain, unable to sleep, restless, severely affecting daily life, causing emotional distress). The number of times the analgesia pump was pressed and the amount of analgesic medication used were recorded at 24 hours, 48 ​​hours and 72 hours postoperatively.

[0058] Postoperative adverse reactions, including nausea, vomiting, and hypotension.

[0059] Thirty groups were selected from each group, and statistical analysis was conducted. The specific data are as follows:

[0060] The pain score in the observation group was significantly lower than that in the two groups (P<0.05). The specific data comparing the number of times the analgesic pump was pressed and the dosage of ketoroxyprogesterone acetate tromethorphan injection for analgesia are as follows:

[0061] Compared with the two groups, the observation group showed a significant reduction in the number of times the analgesic pump was pressed and the amount of ketorolac tromethorphan injection used for analgesia (P<0.05).

[0062] The following data compare the incidence of postoperative adverse reactions:

[0063] The incidence of adverse reactions was relatively lower in the observation group compared with the two groups (P < 0.05).

[0064] Typical Case: Intradermal needle treatment in 1 month

[0065] Intradermal needle treatment in February

[0066] 3-month intradermal injection

[0067] Intradermal needle treatment in April

[0068] Intradermal needle treatment in June

[0069] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in the present invention, and these should all be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A press needle, comprising a base (1) and a needle body (2), said needle body (2) being disposed on one side of the base (1), characterized in that, A needle seat (3) is connected between the base (1) and the needle body (2) to increase the force-bearing area at the tail end of the needle body (2). A nail-hiding mechanism (4) is provided between the needle body (2) and the needle seat (3) to store the tip of the needle body (2). A degradation filament (52) is provided on the outer middle part of the needle body (2) from the tip to the tail end. Both ends of the degradation filament (52) are stored in the inner sidewall of the needle body (2) near the tail end and are free ends.

2. The snap-fit ​​needle according to claim 1, characterized in that: The outer wall of the needle body (2) is provided with a micropore (51) near the tip. The middle part of the degradation filament (52) is fixedly connected to the inner wall of the micropore (51), and both ends of the degradation filament (52) are slidably connected to the inner wall of the needle body (2).

3. The snap-fit ​​needle according to claim 2, characterized in that: The substrate (1) has an adhesive part (54) on one side.

4. The snap-fit ​​needle according to claim 3, characterized in that: The substrate (1) has two symmetrically formed arc grooves (53) on its surface.

5. The snap-fit ​​needle according to claim 4, characterized in that: The nail-hiding mechanism (4) includes a spring piece (401), a connecting part (402), and a locking groove (403). The spring piece (401) and the needle seat (3) are an integral structure. The connecting part (402) is located at the tail end of the needle body (2). There are two locking grooves (403), which are perpendicularly opened on the outer side wall of the connecting part (402).

6. The snap-fit ​​needle according to claim 5, characterized in that: The needle holder (3) consists of two separate umbrella-shaped parts, which are embedded and symmetrically fixed to one side of the base (1). There are two connecting parts (402), which are integrally formed with the needle body (2) and are T-shaped in general. The two connecting parts (402) are respectively rotatably connected to the inner sidewalls of the two umbrella-shaped parts. There are four spring pieces (401), which are symmetrically integrally formed on the inner sidewalls of the two umbrella-shaped parts and are correspondingly set with the locking grooves (403) on the two connecting parts (402).

7. The snap-fit ​​needle according to claim 5, characterized in that: The needle seat (3) is an integral convex ring, which is embedded and fixedly connected to one side of the base (1). The connecting part (402) is one, which is integrally formed with the needle body (2) and is L-shaped. The connecting part (402) is rotatably connected to the inner wall of one end of the convex ring. The spring piece (401) is two, which are symmetrically integrally formed on the inner wall of one end of the convex ring and are correspondingly set with the two locking grooves (403) on the connecting part (402).

8. The snap-fit ​​needle according to claim 3, characterized in that: The needle seat (3) is an integral convex round part, which is fixedly connected to the inner side wall of the base (1). The tail end of the needle body (2) is fixedly connected to the middle of the lower surface of the needle seat (3). The nail hiding mechanism (4) includes a double drum cavity (411), a rubber sleeve (412), a storage groove (413), and a connecting rib (414). The double drum cavity (411) is located inside the base (1), the inner wall of the rubber sleeve (412) is slidably connected to the outer wall of the needle body (2), the receiving groove (413) is opened at the bottom of the convex part, the outer wall of the rubber sleeve (412) is slidably connected to the inner wall of the receiving groove (413), and the connecting ribs (414) are a number of them, which are fixedly connected to the inner wall of the base (1) in a ring.

9. The snap-fit ​​needle according to claim 3, characterized in that: The needle seat (3) is an integral round plate, which is fixedly connected to the upper surface of the base (1). The tail end of the needle body (2) is fixedly connected to the middle of the lower surface of the needle seat (3). The nail hiding mechanism (4) includes a single drum cavity (421). The single drum cavity (421) is located between the disc and the upper surface of the substrate (1).

10. The application of the press needle according to any one of claims 1-9 in preoperative analgesia during perioperative period of hip surgery in elderly patients, characterized in that: The press needles are inserted into the patient's bilateral Hegu and Taichong acupoints for 1-3 days.

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