A disposable infusion set for assisting subcutaneous injection

Abstract

The present invention relates to the technical field of disposable infusion sets, and discloses a disposable infusion set for assisting subcutaneous injection, comprising a support plate and a limiting slide groove 1, wherein the limiting slide groove 1 is symmetrically arranged on the support plate, a buffer mechanism is provided on the outside of the support plate, a knocking mechanism is provided on the top of the support plate, a fixing mechanism is provided on the top of the knocking mechanism, and a disposable infusion set is provided on the inside of the fixing mechanism, wherein the buffer mechanism is used to prevent the disposable infusion set from positional displacement, thereby reducing the degree of positional displacement of the disposable infusion set when injecting into the human body, thereby achieving a buffering effect. The elastic force generated by the deformation of the special-shaped rubber plate and the spring 1 buffers the external force exerted on the disposable infusion set, thereby preventing the disposable infusion set from deviating too much and causing the needle to puncture the subcutaneous tissue around the needle hole, thereby improving the stability of the disposable infusion set during injection.

Description

Technical Field

[0001] The present invention relates to the technical field of disposable infusion sets, in particular to a disposable infusion set for assisting subcutaneous injection. Background Art

[0002] A patient-controlled disposable infusion set is a pain management technology in which medical staff pre-set the dosage of the disposable infusion set based on the patient's pain level and physical condition, and then the patient "self-manages" the medication. Depending on the patient's condition, PCA dosing modes include: simple PCA, in which the patient fully controls the medication and presses the PCA control device to administer a single dose when pain occurs; background infusion plus single dose, in which the patient receives a continuous infusion of a certain medication and then increases the dose by a single dose when pain occurs; and loading dose plus background infusion plus single dose, in which the patient is first given a loading dose to quickly relieve the pain, followed by a continuous infusion of the medication, with the patient increasing the dose by a single dose when pain occurs.

[0003] A Chinese invention patent, publication number CN205683355U, discloses a disposable infusion set for injectable analgesia. This device facilitates upper arm intramuscular injections and features high skin-friendliness and overpressure protection. The device comprises a pressing piece and a drawstring. One end of the pressing piece is provided with a protruding needle, and the other end is provided with a furry surface that mates with Velcro. There are at least two furry surfaces, one on either side of the puncture hole. Both ends of the drawstring are provided with hooks that mate with the furry surfaces. The pressing piece and protruding needle are made of soft, skin-friendly materials. This utility model has a simple structure, is easy to use, and has a wide range of applications. It offers excellent disposable infusion effectiveness, few side effects, and a promising market outlook.

[0004] In addition, since patients inject pain-relieving drugs into their bodies through disposable infusion sets according to their own pain conditions, people generally insert the injection needle into the human body by holding the disposable infusion set, and then press down with the thumb to inject the drug inside the disposable infusion set into the human body. Since different individuals have different conditions and the minimum effective analgesic dose and the minimum effective blood drug concentration required are different, patients need to hold the disposable infusion set for a long time and slow injection. Therefore, the disposable infusion set disclosed by Chinese invention patent CN205683355U cannot keep the injection needle still in the human body for a long time during the injection process, which will increase the pain at the patient's needle hole. In addition, when injecting some higher concentration drugs, patients cannot increase the absorption efficiency of the drug by the subcutaneous tissue in a short period of time, which will cause a feeling of distension and pain at the needle hole. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the existing technology, the present invention provides a disposable infusion set for assisting subcutaneous injection, which has the advantages of buffering effect and promoting drug absorption, and solves the problem of pain during injection.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a disposable infusion set for assisting subcutaneous injection, comprising a support plate and a first limiting chute, wherein the first limiting chute is symmetrically arranged on the support plate, a buffer mechanism is provided on the outside of the support plate, a knocking mechanism is provided on the top of the support plate, a fixing mechanism is provided on the top of the knocking mechanism, and a disposable infusion set is provided on the inside of the fixing mechanism;

[0009] The buffer mechanism is used to prevent the disposable infusion set from positional displacement, thereby reducing the degree of positional displacement of the disposable infusion set when injecting the liquid into the human body, thereby achieving a buffering effect;

[0010] The knocking mechanism is used to knock the skin around the needle hole, which prevents people from injecting too quickly through the disposable infusion set and relieves the distending pain at the needle hole.

[0011] The fixing mechanism is used to fix the disposable infusion set, so that the disposable infusion set and the knocking mechanism are always fixed.

[0012] Preferably, the buffer mechanism includes a hinge plate 1 symmetrically fixedly connected to the support plate, the hinge plate 1 is hingedly connected to a rubber bandage inside, the bottom end of the rubber bandage is fixedly connected to a fixing plate 1, the bottom end of the fixing plate 1 is fixedly connected to a clamping ring and a buckle respectively, the lower surface of the support plate is symmetrically fixedly connected to a fixing block 1, a special-shaped rubber plate is fixedly connected between the two fixing blocks 1, the upper surface of the special-shaped rubber plate is symmetrically fixedly connected to a hinge block 1, the hinge block 1 is rotatably connected to a fixing rod 1 inside, the middle part of the fixing rod 1 is fixedly connected to a fixing rod 2, a cylindrical sleeve plate is symmetrically sleeved on the outer wall of the fixing rod 2, a telescopic rod 1 is fixedly connected to the outer wall of the cylindrical sleeve plate, and a spring 1 is sleeved on the outer wall of the telescopic rod 1.

[0013] Preferably, the end of the fixing rod 1 away from the hinge block 1 is limitedly slidably connected to the inside of the limiting slide groove 1, the size of the fixing rod 1 is adapted to the size of the limiting slide groove 1, a slot is opened through the middle of the special-shaped rubber plate, the size of the clamping ring is adapted to the size of the buckle, a hinge rod is provided inside the hinge plate 1, and the rubber bandage is fixedly connected to the hinge rod provided inside the hinge plate 1.

[0014] Preferably, the telescopic end of the spring one is provided with a baffle, and the two ends of the spring one are respectively fixedly connected to the fixed end of the telescopic rod one and the baffle provided on the telescopic end, the special-shaped rubber plate is arranged in an arc shape, the size of the cylindrical sleeve plate is adapted to the size of the fixed rod two, and the end of the telescopic rod one away from the fixed rod two is fixedly connected to a rotating rod, and the rotating rod connected to the fixed end of the telescopic rod one is rotatably connected to the inner wall of the support plate.

[0015] Preferably, the knocking mechanism includes a rectangular groove plate 1 fixedly connected to the upper surface of the support plate, four driving buttons are fixedly connected in a circular array on the inner wall of the rectangular groove plate 1, a rectangular groove plate 2 is vertically slidably connected inside the rectangular groove plate 1, four electric shock grooves are arranged in a circular array on the lower surface of the rectangular groove plate 2, four telescopic rods 2 are fixedly connected in a circular array on the lower surface of the rectangular groove plate 1, the telescopic end of the telescopic rod 2 away from the side of the rectangular groove plate 1 is fixedly connected to the knocking plate, and the disposable infusion pump slides vertically inside the rectangular groove plate 2.

[0016] Preferably, there is an electrical connection between the electric shock slot and the power supply, the driving device inside the telescopic rod 2 is electrically connected to the driving button, the sizes of the electric shock slot and the driving button are adapted, and the electric shock slot and the driving button are on the same vertical plane.

[0017] Preferably, the size of the rectangular groove plate 2 is adapted to the size of the top of the inner cavity of the rectangular groove plate 1, the size of the knocking plate is smaller than the size of the groove opened on the top of the special-shaped rubber plate, and the size of the rectangular groove plate 2 is adapted to the size of the disposable infusion set.

[0018] Preferably, the fixing mechanism includes a fixing plate 2 symmetrically fixedly connected to the outer wall of the rectangular groove plate 2, a limited resistance block symmetrically fixedly connected to the outer wall of the fixing plate 2, a fixing plate 3 fixedly connected to the lower surface of each of the fixing plates 2, a hinged rod 1 fixedly connected to the outer wall of the fixing plate 3, a collar rotatably connected to the outer wall of the hinged rod 1, a spring 2 fixedly connected between the two collars, a rotating rod rotatably connected through the two fixing plates 2, a clamping block 2 fixedly connected to the outer wall of the middle part of the rotating rod, and a hinged rod 2 fixedly connected to the outer wall of the rotating rod away from the clamping block 2.

[0019] Preferably, the length of the second hinge rod is greater than the distance between the rotating rod and the limiting abutment block, the second clamping block is made of rubber material, and both the second hinge rod and the second clamping block are configured to be L-shaped.

[0020] Preferably, the rotating rod and the hinged rod 1 are on the same vertical horizontal plane, the rotating rod and the limiting abutment block are on the same water surface, and the size of the collar is adapted to that of the hinged rod 1.

[0021] (3) Beneficial effects

[0022] Compared with the prior art, the present invention provides a disposable infusion set for assisting subcutaneous injection, which has the following beneficial effects:

[0023] 1. The elastic force generated by the deformation of the special-shaped rubber plate and the spring cushions the external force on the disposable infusion set, preventing the needle from puncturing the subcutaneous tissue around the needle hole due to excessive deviation of the disposable infusion set, thereby improving the stability of the disposable infusion set during injection.

[0024] 2. The telescopic end of the telescopic rod drives the knocking plate to repeatedly tap the skin tissue around the needle hole, which can accelerate the absorption of the drug by the subcutaneous tissue, avoid the impact of the drug concentration on the absorption effect of the subcutaneous tissue when it is too high, and prevent excessive high-concentration drugs from accumulating in the subcutaneous tissue to cause swelling and pain in the needle hole. At the same time, by knocking the skin around the needle hole with the knocking plate, the patient's attention can be effectively diverted, reducing the patient's perception of pain.

[0025] 3. The disposable infusion set is fixed by the second clamping block, thereby achieving the fixation of disposable infusion sets of various specifications and the effect of quick disassembly of the disposable infusion set, thereby improving the flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the overall structure of a disposable infusion set for assisting subcutaneous injection proposed by the present invention;

[0027] Figure 2 This is a schematic diagram of the partial structure of a buffer mechanism in a disposable infusion set for assisting subcutaneous injection proposed by the present invention;

[0028] Figure 3 This is a schematic diagram of the positional relationship between the hinge plate and the buckle in a disposable infusion set for assisting subcutaneous injection proposed by the present invention;

[0029] Figure 4 This is a schematic diagram of the positional relationship between the fixing block 1 and the fixing rod 2 in a disposable infusion set for assisting subcutaneous injection proposed by the present invention;

[0030] Figure 5 This is a schematic diagram of the positional relationship between a fixed block 1 and a spring 1 in a disposable infusion set for assisting subcutaneous injection proposed by the present invention;

[0031] Figure 6 This is a schematic diagram of the partial structure of the knocking mechanism in a disposable infusion set for assisting subcutaneous injection proposed by the present invention;

[0032] Figure 7This is a schematic diagram of the positional relationship between the drive button and the telescopic rod in a disposable infusion device for assisting subcutaneous injection proposed by the present invention;

[0033] Figure 8 This is a schematic diagram of the partial structure of the fixing mechanism in a disposable infusion set for assisting subcutaneous injection proposed by the present invention;

[0034] Figure 9 This is a schematic diagram of the positional relationship between a limiting abutment block and a clamping block in a disposable infusion set for assisting subcutaneous injection proposed by the present invention.

[0035] : In the figure: 1. Support plate; 2. Limiting slide groove 1; 3. Buffer mechanism; 31. Articulated plate 1; 32. Rubber bandage; 33. Fixed plate 1; 34. Snap ring; 35. Buckle; 36. Fixed block 1; 37. Special-shaped rubber plate; 38. Articulated block 1; 39. Fixed rod 1; 310. Fixed rod 2; 311. Cylindrical sleeve; 312. Telescopic rod 1; 313. Spring 1; 4. Knocking mechanism; 41. Rectangular slot plate 1; 42. Driving button; 43. Rectangular slot plate 2; 44. Electric shock slot; 45. Telescopic rod 2; 46. Knocking plate; 5. Fixing mechanism; 51. Fixed plate 2; 52. Limiting resistance block; 53. Fixed plate 3; 54. Articulated rod 1; 55. Sleeve; 56. Spring 2; 57. Rotating rod; 58. Snap block 2; 59. Articulated rod 2; 6. Disposable infusion set. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 efforts are within the scope of protection of the present invention.

[0037] Embodiments of the present invention:

[0038] A disposable infusion set for assisting subcutaneous injection, Figure 1 As shown, it includes a support plate 1 and a limiting slide groove 2, and the limiting slide groove 2 is symmetrically opened on the support plate 1;

[0039] In view of the above-mentioned disposable infusion set for assisting subcutaneous injection, it can be specifically implemented as follows:

[0040] Refer to the attached Figures 1 to 9 As shown, a buffer mechanism 3 is provided on the outside of the support plate 1, a knocking mechanism 4 is provided on the top of the support plate 1, a fixing mechanism 5 is provided on the top of the knocking mechanism 4, and a disposable infusion set 6 is provided on the inside of the fixing mechanism 5;

[0041] refer to Figures 1 to 5As shown, the buffer mechanism 3 is used to prevent the disposable infusion set 6 from positional displacement, thereby reducing the degree of positional displacement of the disposable infusion set 6 when injecting into the human body, thereby achieving a buffering effect;

[0042] refer to Figures 1 to 5 The cam 32 is connected to the support plate 1 by the spring 36 and the spring 37 is connected to the support plate 1 by the spring 38. When the cam 314 is in the unlocking state, the locking plate 311 is locked and the locking plate 312 is locked.

[0043] Summary 1: Compared with the existing technology, the person inserts the injection needle into the human body by holding the disposable infusion set, and then presses down with the thumb to inject the medicine inside the disposable infusion set into the human body. Therefore, the stability of the disposable infusion set 6 during injection cannot be guaranteed. Therefore, the elastic force generated by the deformation of the special-shaped rubber plate 37 and the spring 1 313 cushions the external force exerted on the disposable infusion set 6, preventing the disposable infusion set 6 from deviating too much and causing the needle to pierce the subcutaneous tissue around the needle hole, thereby improving the stability of the disposable infusion set 6 during injection.

[0044] refer to Figures 6 to 8As shown, the knocking mechanism 4 is used to knock the skin around the needle hole, thereby preventing personnel from injecting too quickly through the disposable infusion set 6 and relieving the distending pain at the needle hole;

[0045] refer to Figures 6 to 8 As shown, the knocking mechanism 4 includes a rectangular slot plate 1 41 fixedly connected to the upper surface of the support plate 1, and four driving buttons 42 are fixedly connected in a circular array on the inner wall of the rectangular slot plate 1 41, and a rectangular slot plate 2 43 is vertically slidably connected inside the rectangular slot plate 1 41. The size of the rectangular slot plate 2 43 is adapted to the size of the disposable infusion set 6, and the size of the rectangular slot plate 2 43 is adapted to the size of the top of the inner cavity of the rectangular slot plate 1 41. The lower surface of the rectangular slot plate 2 43 is arranged in a circular array and has four electric shock grooves 44. The electric shock grooves 44 and the driving buttons 42 are on the same vertical plane, and the electric shock grooves 44 are adapted to the size of the driving buttons 42. There is electrical contact between the electric shock grooves 44 and the power supply. The lower surface of the rectangular groove plate 1 41 is fixedly connected with four telescopic rods 2 45 arranged in a circular array. The driving device inside the telescopic rod 2 45 is electrically connected to the driving button 42. The telescopic end of the telescopic rod 2 45 away from the rectangular groove plate 1 41 is fixedly connected with a knocking plate 46. The size of the knocking plate 46 is smaller than the size of the groove opened on the top of the special-shaped rubber plate 37. The disposable infusion set 6 slides vertically inside the rectangular groove plate 2 43. The knocking plate 46 gently taps the skin around the needle hole, which can promote the rate of drug absorption by the surrounding skin tissue. In the process of tapping the skin, the patient's skin touch is diverted, effectively avoiding the patient's perception of pain.

[0046] It should be noted that the operating principle of the drive button 42 is similar to that of the control button. An electronic control button operates based on electronic circuit principles. It is typically an electronic switch element, such as a microswitch or a tactile switch. When the button is pressed, it changes the state of its internal circuitry, generating an electrical signal. This electrical signal, which can be a transition from a low level to a high level (or vice versa), is transmitted via wires to the device's control circuit board. Upon receiving this signal, the microprocessor or logic circuit on the control circuit board determines and processes it according to a pre-programmed program.

[0047] Summary 2: Compared with the existing technology, when a person performs an injection, due to the difference between the minimum effective analgesic dose and the minimum effective blood drug concentration and the inability of the person to control the speed after the injection, a feeling of distension and pain will appear at the needle hole. Therefore, the telescopic end of the telescopic rod 2 45 drives the knocking plate 46 to repeatedly tap the skin tissue around the needle hole, which can accelerate the absorption of the drug by the subcutaneous tissue, avoid the impact of the drug concentration on the absorption effect of the subcutaneous tissue when it is too high, and prevent excessive high-concentration drugs from accumulating in the subcutaneous tissue to cause distension and pain in the needle hole. At the same time, by knocking the skin around the needle hole with the knocking plate 46, the patient's attention can be effectively diverted, reducing the patient's perception of pain.

[0048] refer to Figures 4 to 9 As shown, the fixing mechanism 5 is used to fix the disposable infusion set 6, so that the disposable infusion set 6 and the knocking mechanism 4 are always fixed;

[0049] refer to Figures 4 to 9 As shown, the fixing mechanism 5 includes a fixing plate 2 51 symmetrically fixedly connected to the outer wall of the rectangular groove plate 2 43, and a limited position contact block 52 is symmetrically fixedly connected to the outer wall of the fixing plate 2 51. The lower surface of each fixing plate 2 51 is fixedly connected to a fixing plate 3 53, and a hinge rod 1 54 is fixedly connected to the outer wall of the fixing plate 3 53. A collar 55 is rotatably connected to the outer wall of the hinge rod 1 54. The collar 55 is adapted to the size of the hinge rod 1 54. A spring 2 56 is fixedly connected between the two collars 55. Between the two fixing plates 2 51 A rotating rod 57 is connected to the rotating rod 57 so as to rotate therethrough. The rotating rod 57 and the hinge rod 1 54 are on the same vertical horizontal plane. The rotating rod 57 and the limit contact block 52 are on the same water surface. A second clamping block 58 is fixedly connected to the middle outer wall of the rotating rod 57. A second hinged rod 59 is fixedly connected to the outer wall of the rotating rod 57 away from the second clamping block 58. The length of the second hinged rod 59 is greater than the distance between the rotating rod 57 and the limit contact block 52. The second clamping block 58 is made of rubber. Both the second hinged rod 59 and the second clamping block 58 are L-shaped.

[0050] Summary 3: Compared with the existing technology, when personnel install the disposable infusion set 6, not only are the steps cumbersome but also affect the timeliness of the injection. Therefore, the disposable infusion set 6 is fixed by the clamping block 2 58, which realizes the fixation of disposable infusion sets 6 of various specifications and the quick disassembly of the disposable infusion set 6, thereby improving the flexibility of the device.

[0051] The following is the working process and principle of the above embodiment:

[0052] The initial state is as follows: the special-shaped rubber plate 37 has not been deformed to expand to both sides, the telescopic rod 1 312 is in an unstretched state, the spring 1 313 is in an unstretched state, the telescopic rod 2 45 is in an unstretched state, and the spring 2 56 is in an unstretched state.

[0053] The working steps are as follows:

[0054] The patient wraps the support plate 1 around the area where injection is required through the hinge plate 1 31 and the rubber bandage 32, and the personnel connects the clamping ring 34 with the buckle 35 to bind the rubber bandage 32 to the human skin, so that the support plate 1 drives the special-shaped rubber plate 37 to press the human body through the fixing block 1 36, so that the special-shaped rubber plate 37 is expanded to both sides under the resistance of the human body, and then the special-shaped rubber plate 37 drives the hinge block 1 38 to expand to both sides simultaneously, so that the hinge block 1 38 drives the bottom end of the fixed rod 1 39 connected thereto to move synchronously, so that the top end of the fixed rod 1 39 moves inside the limiting slide groove 1 2 to the side away from the hinge block 1 38, and then the fixed rod 1 39 drives the fixed rod 2 310 to move synchronously to the side away from the hinge block 1 38, so that the fixed rod 2 310 drives the cylindrical sleeve plate 311 connected thereto to move to the side away from the hinge block 1 38. The cam 313 of the embodiment of the present invention is a kind of cam 314 that is used for guiding the user to the cam 316. The cam 314 of the embodiment of the present invention is a kind of cam 314 that is used for guiding the user to the cam 316.

[0055] Then, personnel put the disposable infusion set 6 into the interior of the rectangular groove plate 2 43, so that the top end of the rectangular groove plate 2 43 contacts the outer wall of the disposable infusion set 6. Then, the patient pushes the clamping block 2 58 toward the side close to the disposable infusion set 6, so that the clamping block 2 58 drives the rotating rod 57 to rotate inside the two fixed plates 2 51, so that the rotating rod 57 drives the hinged rod 2 59 to rotate synchronously, so that the top end of the hinged rod 2 59 rotates toward the side close to the rectangular groove plate 2 43, so that the hinged rod 2 59 drives the collar 55 connected thereto to rotate synchronously, and the collar 55 drives the spring 2 56 fixed thereto to flip toward the side close to the rectangular groove plate 2 43 with the hinged rod 1 54 as the axis. During the rotation of the hinged rod 2 59, the collar 55 stretches the spring 2 56. The spring 2 56 generates an elastic force to contract inward. When the top of the hinged rod 2 59 rotates to the side of the rectangular groove plate 2 43 above the rotating rod 57, the elastic force of the spring 2 56's own contraction drives the ring 55 to continue to rotate, so that the ring 55 drives the top of the hinged rod 2 59 to continue to rotate until the top of the clamping block 2 58 contacts the outer wall of the disposable infusion set 6. At this time, the spring 2 56 no longer drives the hinged rod 2 59 to continue to rotate, so that the disposable infusion set 6 is fixed to the rectangular groove plate 2 43 under the interference of the clamping block 2 58. The disposable infusion set 6 is fixed by the clamping block 2 58, thereby achieving the fixation of disposable infusion sets 6 of various specifications and the effect of quick disassembly of the disposable infusion set 6, thereby improving the flexibility of the device.

[0056] After the disposable infusion set 6 is installed on the rectangular slot plate 2 43, the patient presses the rectangular slot plate 2 43 downwards, so that the rectangular slot plate 2 43 moves toward one side of the human body inside the rectangular slot plate 1 41, so that the rectangular slot plate 2 43 drives the needle of the disposable infusion set 6 to move toward the human body through the clamping block 2 58, and the needle of the disposable infusion set 6 is inserted into the human body. At the same time, the rectangular slot plate 2 43 drives the electric shock groove 44 to move toward the side close to the driving button 42, so that the driving button 42 enters the interior of the electric shock groove 44. The rear drive button 42 electrically controls the telescopic rod 2 45 to start reciprocating up and down motion, so that the telescopic end of the telescopic rod 2 45 drives the knocking plate 46 to repeatedly pat the skin tissue around the needle hole, which can accelerate the absorption of the drug by the subcutaneous tissue, avoid the impact of the drug concentration on the absorption effect of the subcutaneous tissue when it is too high, and prevent excessive high-concentration drugs from accumulating in the subcutaneous tissue to cause swelling and pain in the needle hole. At the same time, by knocking the skin around the needle hole with the knocking plate 46, the patient's attention can be effectively diverted, reducing the patient's perception of pain.

[0057] It should be noted that the term "comprises" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0058] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A disposable infusion set for assisting subcutaneous injection, comprising a support plate (1) and a limiting slide groove (2), wherein the limiting slide groove (2) is symmetrically arranged on the support plate (1), and is characterized in that: A buffer mechanism (3) is provided on the outside of the support plate (1), a knocking mechanism (4) is provided on the top of the support plate (1), a fixing mechanism (5) is provided on the top of the knocking mechanism (4), and a disposable infusion device (6) is provided on the inside of the fixing mechanism (5); The buffer mechanism (3) is used to prevent the disposable infusion set (6) from positional deviation, thereby reducing the degree of positional deviation of the disposable infusion set (6) when injecting into a human body, thereby achieving a buffering effect; The knocking mechanism (4) is used to knock the skin around the needle hole, thereby preventing the person from injecting too quickly through the disposable infusion device (6) and relieving the distending pain at the needle hole; The fixing mechanism (5) is used to fix the disposable infusion set (6), so that the disposable infusion set (6) and the knocking mechanism (4) are always fixed; The buffer mechanism (3) comprises a hinge plate (31) symmetrically fixedly connected to the support plate (1), a rubber bandage (32) is hinged inside the hinge plate (31), the bottom end of the rubber bandage (32) is fixedly connected to a fixing plate (33), the bottom end of the fixing plate (33) is fixedly connected to a clamping ring (34) and a buckle (35), respectively, the lower surface of the support plate (1) is symmetrically fixedly connected to a fixing block (36), and a special-shaped rubber plate (36) is fixedly connected between the two fixing blocks (36). 7), the upper surface of the special-shaped rubber plate (37) is symmetrically fixedly connected to a hinge block 1 (38), the hinge block 1 (38) is rotatably connected to a fixed rod 1 (39) inside, the middle of the fixed rod 1 (39) is fixedly connected to a fixed rod 2 (310), the outer wall of the fixed rod 2 (310) is symmetrically sleeved with a cylindrical sleeve (311), the outer wall of the cylindrical sleeve (311) is fixedly connected to a telescopic rod 1 (312), and the outer wall of the telescopic rod 1 (312) is sleeved with a spring 1 (313); The knocking mechanism (4) includes a rectangular slot plate 1 (41) fixedly connected to the upper surface of the support plate (1), four driving buttons (42) are fixedly connected to the inner wall of the rectangular slot plate 1 (41) in an annular array, the interior of the rectangular slot plate 1 (41) is vertically slidably connected to a rectangular slot plate 2 (43), the lower surface of the rectangular slot plate 2 (43) is arranged in an annular array and has four electric shock grooves (44), the lower surface of the rectangular slot plate 1 (41) is fixedly connected to four telescopic rods 2 (45) in an annular array, the telescopic end of the telescopic rod 2 (45) away from the side of the rectangular slot plate 1 (41) is fixedly connected to a knocking plate (46), and the disposable infusion set (6) slides vertically inside the rectangular slot plate 2 (43).

2. A disposable infusion set for assisting subcutaneous injection according to claim 1, characterized in that: The end of the fixing rod 1 (39) away from the hinge block 1 (38) is limitedly slidably connected to the inside of the limiting slide groove 1 (2). The size of the fixing rod 1 (39) is adapted to the size of the limiting slide groove 1 (2). A slot is provided through the middle of the special-shaped rubber plate (37). The size of the clamping ring (34) is adapted to the size of the buckle (35). A hinge rod is provided inside the hinge plate 1 (31), and the rubber bandage (32) is fixedly connected to the hinge rod provided inside the hinge plate 1 (31).

3. A disposable infusion set for assisting subcutaneous injection according to claim 2, characterized in that: The telescopic end of the spring 1 (313) is provided with a baffle, and the two ends of the spring 1 (313) are fixedly connected to the fixed end of the telescopic rod 1 (312) and the baffle provided on the telescopic end, respectively. The special-shaped rubber plate (37) is arranged in an arc shape, and the size of the cylindrical sleeve (311) is adapted to the size of the fixed rod 2 (310). The end of the telescopic rod 1 (312) away from the fixed rod 2 (310) is fixedly connected to a rotating rod, and the rotating rod connected to the fixed end of the telescopic rod 1 (312) is rotatably connected to the inner wall of the support plate (1).

4. A disposable infusion set for assisting subcutaneous injection according to claim 3, characterized in that: There is an electrical connection between the electric shock slot (44) and the power supply, the driving device inside the telescopic rod (45) is electrically connected to the driving button (42), the electric shock slot (44) and the driving button (42) are adapted in size, and the electric shock slot (44) and the driving button (42) are on the same vertical plane.

5. A disposable infusion set for assisting subcutaneous injection according to claim 4, characterized in that: The size of the second rectangular groove plate (43) is adapted to the size of the top of the inner cavity of the first rectangular groove plate (41), the size of the knocking plate (46) is smaller than the size of the groove opened on the top of the special-shaped rubber plate (37), and the size of the second rectangular groove plate (43) is adapted to the size of the disposable infusion set (6).

6. A disposable infusion set for assisting subcutaneous injection according to claim 5, characterized in that: The fixing mechanism (5) comprises a fixing plate 2 (51) symmetrically fixedly connected to the outer wall of the rectangular groove plate 2 (43), a limited contact block (52) symmetrically fixedly connected to the outer wall of the fixing plate 2 (51), a fixing plate 3 (53) fixedly connected to the lower surface of each fixing plate 2 (51), a hinge rod 1 (54) fixedly connected to the outer wall of the fixing plate 3 (53), a sleeve ring (55) rotatably connected to the outer wall of the hinge rod 1 (54), a spring 2 (56) fixedly connected between the two sleeve rings (55), a rotating rod (57) rotatably connected through the two fixing plates 2 (51), a clamping block 2 (58) fixedly connected to the middle outer wall of the rotating rod (57), and a hinge rod 2 (59) fixedly connected to the outer wall of one end of the rotating rod (57) away from the clamping block 2 (58).

7. A disposable infusion set for assisting subcutaneous injection according to claim 6, characterized in that: The length of the second hinge rod (59) is greater than the distance between the rotating rod (57) and the limiting contact block (52), the second clamping block (58) is made of rubber material, and the second hinge rod (59) and the second clamping block (58) are both set to be L-shaped.

8. A disposable infusion set for assisting subcutaneous injection according to claim 7, characterized in that: The rotating rod (57) and the hinge rod (54) are on the same vertical horizontal plane, the rotating rod (57) and the limiting contact block (52) are on the same water surface, and the size of the collar (55) is adapted to that of the hinge rod (54).

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