Infusion device with rivet piercing structure

Abstract

The application discloses an infusion device with rivet puncture structure and relates to the technical field of medical devices, which comprises an infusion hose needle seat, a rivet, an infusion hose and a puncture needle, wherein the infusion hose needle seat is provided with a first through hole; the rivet is sleeved in the first through hole, and the rivet is fixedly connected with the infusion hose needle seat and has a second through hole; the proximal end of the infusion hose is arranged between the rivet and the inner side wall of the first through hole, and the proximal end of the infusion hose is tightly held on the outer side wall of the rivet under the elastic restoring force of the infusion hose; the distal end of the puncture needle can pass through the second through hole and extend out of the second through hole and the first through hole, the puncture needle can produce relative movement with the rivet along the length direction of the second through hole; the distal end of the puncture needle can extend out of the distal end of the infusion hose, and the puncture needle can produce relative movement with the infusion hose along the length direction of the second through hole. The infusion device is convenient to assemble, can reduce the pain of patients and ensure the success rate of catheterization.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to an infusion device with a rivet puncture structure. Background Technology

[0002] Drug infusion devices such as patch-type insulin pumps typically require the insertion of an infusion tubing into the patient's subcutaneous tissue to achieve continuous or on-demand drug infusion. In traditional infusion devices, tubing insertion usually involves a two-step process: first, a rigid needle is inserted into the skin to create a channel; then, the infusion tubing is inserted subcutaneously along the needle channel; finally, the needle is withdrawn. This procedure is complex, requires a high level of skill from healthcare professionals, increases the risk of patient pain and tissue damage, and demands high precision in the alignment of the needle and tubing. Ensuring coaxiality between the needle and tubing is difficult, leading to assembly challenges and a high risk of puncture failure or incorrect tubing placement. The two puncture procedures increase patient pain and tissue damage, resulting in a poor user experience.

[0003] Existing technologies include structures that use rivets to connect the infusion tubing and the infusion tubing needle seat, as well as solutions where rivets are placed at the connection between the infusion tubing (tuberculum) and the infusion tubing seat in the indwelling needle. However, in some known solutions, the inner diameter of the infusion tubing is larger than the outer diameter of the rivet. Fixing it by applying adhesive between the rivet and the infusion tubing can easily lead to misalignment of the infusion tubing relative to the rivet, compromising their coaxiality. Consequently, the coaxiality between the puncture needle and the infusion tubing cannot be guaranteed, potentially causing the puncture needle to puncture the infusion tubing. In some known solutions, the infusion tubing is directly injection-molded onto the outside of the rivet, resulting in a complex manufacturing process.

[0004] Therefore, there is an urgent need for a rivet puncture structure that is simple in structure, reliable in connection, and can achieve coaxial fixation of the puncture needle and infusion tubing and complete the puncture and catheter placement in one go, so as to simplify the operation process and reduce patient pain. Summary of the Invention

[0005] The purpose of this invention is to provide an infusion device with a rivet puncture structure to solve the problems existing in the prior art. It can realize one-time puncture and catheter placement with "puncture needle and infusion tubing" without the need for secondary catheterization, reducing patient pain; it can prevent damage to the infusion tubing, and the infusion tubing will not shift or detach during the puncture, ensuring the success rate of catheter placement; it is easy to assemble and suitable for mass production of disposable devices.

[0006] To achieve the above objectives, the present invention provides the following solution: This invention provides an infusion device with a rivet puncture structure, comprising a rivet puncture assembly, wherein the rivet puncture assembly includes an infusion tubing needle seat, a rivet, an infusion tubing, and a puncture needle, wherein: The infusion tubing needle hub is provided with a first through hole; The rivet is sleeved in the first through hole, and the rivet is fixedly connected to the infusion tubing needle seat. The rivet has a second through hole. The proximal end of the infusion tubing is disposed between the rivet and the inner wall of the first through hole, and the proximal end of the infusion tubing is held tightly against the outer wall of the rivet under the action of the elastic restoring force of the infusion tubing. The distal end of the puncture needle can pass through the second through hole and extend beyond the second through hole and the first through hole. The puncture needle can move relative to the rivet along the length direction of the second through hole. The distal end of the infusion tubing is sleeved outside the puncture needle. The distal end of the puncture needle can extend beyond the distal end of the infusion tubing. The puncture needle can move relative to the infusion tubing along the length direction of the second through hole.

[0007] Preferably, the rivet is detachably fixed to the infusion tubing needle seat.

[0008] Preferably, the outer diameter of the rivet is configured such that when inserted into the first through hole, the rivet and the infusion tubing needle seat together form a compression fixation with the infusion tubing needle seat.

[0009] Preferably, the infusion tubing needle hub is made of rubber.

[0010] Preferably, the center lines of the first through hole and the second through hole are collinear.

[0011] Preferably, when the puncture needle is fitted into the first through hole of the infusion tubing needle seat, the center line of the puncture needle is collinear with the center line of the first through hole.

[0012] Preferably, the puncture needle is made of hard metal.

[0013] Preferably, the infusion tubing is made of a flexible polymer material.

[0014] Preferably, the rivet is made of metal or polymer material.

[0015] Preferably, the assembly further includes a mechanical pump, which includes a first driving mechanism and a second driving mechanism. The first driving mechanism is connected to the rivet puncture assembly and is capable of driving the rivet puncture assembly to move along the centerline of the puncture needle. The second driving mechanism is connected to the puncture needle and is capable of driving the puncture needle to move along the centerline of the puncture needle.

[0016] The present invention achieves the following technical effects compared to the prior art: This invention provides an infusion device with a rivet puncture structure, comprising a rivet puncture assembly, which includes an infusion tubing needle seat, a rivet, an infusion tubing, and a puncture needle. The infusion tubing needle seat has a first through hole. The rivet is fitted into the first through hole and fixedly connected to the infusion tubing needle seat. The rivet has a second through hole. The proximal end of the infusion tubing is positioned between the rivet and the inner wall of the first through hole, and the proximal end of the infusion tubing is held tightly against the outer wall of the rivet by the elastic restoring force of the infusion tubing. The distal end of the puncture needle can pass through the second through hole and extend beyond both the second and first through holes. The puncture needle can move relative to the rivet along the length of the second through hole. The distal end of the infusion tubing is fitted over the puncture needle, and the distal end of the puncture needle can extend beyond the distal end of the infusion tubing. The puncture needle can move relative to the infusion tubing along the length of the second through hole.

[0017] The proximal end of the infusion tubing is fixed by rivets, forming a puncture assembly with the puncture needle inside and the infusion tubing outside. The rivet-mounted puncture assembly is rapidly inserted into the skin—the tip of the puncture needle first penetrates the skin, using its hardness and sharpness to cut open the skin passage; the infusion tubing covers the outside of the puncture needle and follows synchronously into the subcutaneous tissue. After successful puncture, the puncture needle is withdrawn from the infusion tubing and removed from the body. The infusion tubing remains in the subcutaneous tissue, allowing the medication to be delivered there. This achieves a single-use puncture and catheter placement with a "puncture needle and infusion tubing," eliminating the need for secondary catheterization and reducing patient discomfort. In this invention, the proximal end of the infusion tubing is wrapped around the rivet, and the inner wall of the infusion tubing is in close contact with the outer wall of the rivet, improving the coaxiality of the infusion tubing and the rivet. This prevents misalignment of the infusion tubing due to inadequate fixation on the rivet, which could damage the infusion tubing when the puncture needle penetrates it. Riveted connections offer high strength and reliability, preventing displacement or detachment of the infusion tubing during puncture. Their simple structure, few parts, and easy assembly make them suitable for mass production of disposable devices. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the rivet piercing assembly provided by the present invention; Figure 2 A schematic diagram illustrating the combination of the mechanical pump, rivet, and puncture needle provided by the present invention; Figure 3 A schematic diagram of the infusion device with a rivet puncture structure provided by the present invention; Figure 4 A schematic diagram of the internal structure and module layout of a mechanical pump; In the diagram: 100. Infusion device with rivet puncture structure; 1. Infusion tubing needle seat; 101. First through hole; 2. Puncture needle; 3. Infusion tubing; 4. Rivet; 401. Second through hole; 5. Mechanical pump; 501. Main body shell; 502. Bottom medical tape; 503. Button; 504. Drug storage compartment; 505. Base plate; 506. Infusion tubing plate; 507. Drug infusion tubing one; 508. Drug infusion tubing two; 509. Drug infusion tubing three; 510. Drug infusion tubing four; 511. Drug storage membrane; 512. Welding ring; 513. Counting display; 514. Positioning hole; 515. Needle assistance hole; 516. Touch button. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that in the description of this invention, the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "center," "longitudinal," "transverse," "length," "width," "thickness," "vertical," "horizontal," "top," "bottom," "clockwise," and "counterclockwise," etc., indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] The purpose of this invention is to provide an infusion device with a rivet puncture structure to solve the problems existing in the prior art. It can realize one-time puncture and catheter placement with "puncture needle and infusion tubing" without the need for secondary catheterization, reducing patient pain; it can prevent damage to the infusion tubing, and the infusion tubing will not shift or detach during the puncture, ensuring the success rate of catheter placement; it is easy to assemble and suitable for mass production of disposable devices.

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] like Figures 1-4 As shown, the present invention provides an infusion device 100 with a rivet puncture structure, including a rivet 4 puncture assembly. The rivet 4 puncture assembly includes an infusion tubing needle seat 1, a rivet 4, an infusion tubing 3, and a puncture needle 2, wherein: The infusion tubing needle holder 1 is provided with a first through hole 101; Rivet 4 is fitted inside the first through hole 101. Rivet 4 is fixedly connected to the infusion tubing needle seat 1. Rivet 4 has a second through hole 401. The proximal end of the infusion tubing 3 is located between the rivet 4 and the inner wall of the first through hole 101, and the proximal end of the infusion tubing 3 is held tightly to the outer wall of the rivet 4 under the action of the elastic restoring force of the infusion tubing 3. The distal end of the puncture needle 2 can pass through the second through hole 401 and extend beyond the second through hole 401 and the first through hole 101. The puncture needle 2 can move relative to the rivet 4 along the length of the second through hole 401. The distal end of the infusion tubing 3 is sleeved on the outside of the puncture needle 2. The distal end of the puncture needle 2 can extend beyond the distal end of the infusion tubing 3. The puncture needle 2 can move relative to the infusion tubing 3 along the length of the second through hole 401.

[0026] The proximal end of the infusion tubing 3 is fixed by rivets 4, forming a puncture assembly with the puncture needle 2 inside and the infusion tubing 3 outside. The puncture assembly is rapidly inserted into the skin via rivets 4—the tip of the puncture needle 2 first penetrates the skin, using its hardness and sharpness to cut open the skin passage; the infusion tubing 3 covers the outside of the puncture needle 2 and follows synchronously into the subcutaneous tissue. After successful puncture, the puncture needle 2 is withdrawn from the infusion tubing 3 and removed from the body. The infusion tubing 3 remains in the subcutaneous tissue, allowing medication to be delivered there. This achieves a single-use puncture and catheter placement with the puncture needle 2 and infusion tubing 3, eliminating the need for secondary catheterization and reducing patient discomfort. In this invention, the proximal end of the infusion tubing 3 is wrapped around the outside of the rivet 4, and the inner wall of the infusion tubing 3 is in close contact with the outer wall of the rivet 4. This improves the coaxiality of the infusion tubing 3 and the rivet 4, preventing displacement of the infusion tubing 3 due to inadequate fixation on the rivet 4, which could damage the infusion tubing 3 when the puncture needle 2 penetrates it. The rivet 4 connection has high strength and high reliability, and the infusion tubing 3 will not shift or detach during puncture. The rivet 4 connection structure is simple, with few parts, and is easy to assemble, making it suitable for mass production of disposable devices.

[0027] It should be noted that, in this invention, the proximal end is the end closer to the main body of the device, and the distal end is the end farther away from the main body of the device.

[0028] In some embodiments, the rivet 4 is detachably fixed to the infusion tubing needle seat 1.

[0029] In some embodiments, the outer diameter of the rivet 4 is configured such that when inserted into the first through hole 101, the rivet 4 and the infusion tubing needle seat 1 together form a compression fixation with the infusion tubing needle seat 1.

[0030] In some embodiments, the outer diameter of the rivet 4 is slightly larger than the inner diameter of the first through hole 101. The rivet 4 is pressed into the first through hole 101 by an interference fit, and fixed by friction. This structure requires no additional machining of the limiting part, making assembly simple; the structure is also detachable, facilitating maintenance and replacement.

[0031] In some implementations, the infusion tubing needle hub 1 is made of rubber.

[0032] In some embodiments, the rivet 4 is a hollow tubular structure with an inner diameter larger than the outer diameter of the puncture needle 2. The rivet 4 includes a tapered portion and a cylindrical portion integrally formed at the small end of the tapered portion. The cylindrical portion of the rivet 4 passes through the first through hole 101, and the large end of the tapered portion of the rivet 4 is located outside the first through hole 101.

[0033] In some embodiments, the center lines of the first through hole 101 and the second through hole 401 are collinear.

[0034] In some embodiments, when the puncture needle 2 is fitted into the first through hole 101 of the infusion tubing needle seat 1, the center line of the puncture needle 2 is collinear with the center line of the first through hole 101.

[0035] In some embodiments, the puncture needle 2 is made of a hard metal (such as stainless steel) and has a sharp tip for piercing the skin and subcutaneous tissue.

[0036] In some embodiments, the infusion tubing 3 is made of a flexible polymer material (such as polyurethane, silicone, etc.), which has good biocompatibility and flexibility.

[0037] In some embodiments, the rivet 4 is a fastener made of metal or polymer.

[0038] In some embodiments, a mechanical pump 5 is also included. The mechanical pump 5 includes a first driving mechanism and a second driving mechanism. The first driving mechanism is connected to the rivet 4 puncture assembly and can drive the rivet 4 puncture assembly to move along the direction of the center line of the puncture needle 2, pushing the rivet 4 puncture assembly to quickly pierce the skin. The second driving mechanism is connected to the puncture needle 2 and can drive the puncture needle 2 to move along the direction of the center line of the puncture needle 2. After the puncture is completed, the second driving mechanism pulls the puncture needle 2 out of the infusion tubing 3 and removes it from the human body. The infusion tubing 3 is left in the subcutaneous tissue, and the drug solution can be delivered to the subcutaneous tissue through the infusion tubing 3.

[0039] In some embodiments, the mechanical pump 5 is a patch-type mechanical pump 5, including a main body shell 501, a bottom medical adhesive tape 502, a button 503, a drug reservoir 504, a base plate 505, an infusion tubing plate 506 (on which infusion tubing one 507, infusion tubing two 508, infusion tubing three 509, and infusion tubing four 510 are provided), an injection aid, a drug reservoir film 511, a welding ring 512, and other structures. The main body shell 501 is provided with a counting display 513, a positioning hole 514, an injection aid hole 515, a touch button 516, and other structures. It should be noted that the structural combination and connection relationship of the patch-type mechanical pump 5 are all existing technologies. For example, a patch-type insulin pump provided by Chinese Patent CN202411282861.3 can be used, which will not be described in detail here.

[0040] In some embodiments, the liquid medicine can pass through a channel inside or outside the rivet 4.

[0041] In some implementations, the rivet 4 puncture assembly is set independently of the pump body and used as a replaceable infusion assembly.

[0042] The assembly process of the infusion device 100 with a rivet piercing structure provided by the present invention is as follows: The first step is to place the proximal end of the infusion tubing 3 onto the outside of the tail of the rivet 4, so that the through hole at the proximal end of the infusion tubing 3 is aligned with the second through hole 401 of the rivet 4.

[0043] The second step is to pass the rivet 4 through the first through hole 101 of the infusion tubing needle seat 1.

[0044] Third, after the puncture needle 2 passes through the second through hole 401, it exits through the inside of the infusion tubing 3. The infusion tubing 3 covers the outside of the puncture needle 2, and the two constitute a coaxial or near-coaxial rivet 4 puncture assembly. The tip of the puncture needle 2 extends from the distal end of the infusion tubing 3 for puncturing the skin.

[0045] The operating principle of the infusion device 100 with a rivet piercing structure provided by the present invention is as follows: In use, the assembled rivet 4 puncture assembly is installed on the mechanical pump 5, and the proximal end of the infusion tubing 3 is connected to the infusion line (such as drug infusion line 2 508).

[0046] The infusion device is applied to the patient's skin using the needle assist device. The needle assist device is activated, and its drive mechanism propels the rivet 4 puncture assembly to quickly penetrate the skin—the tip of the puncture needle 2 first pierces the skin, using its hardness and sharpness to cut open the skin passage; the infusion tubing 3 covers the outside of the puncture needle 2 and follows synchronously into the subcutaneous tissue.

[0047] After the puncture is completed, the internal rebound device of the needle assist device pulls the puncture needle 2 out of the infusion tubing 3 and removes it from the body. The infusion tubing 3 remains in the subcutaneous tissue. At this time, the proximal end of the infusion tubing 3 remains connected to the infusion line, and the medication can be delivered to the subcutaneous tissue through the infusion tubing 3.

[0048] The method of using the infusion device 100 with a rivet piercing structure provided by the present invention is as follows: (a) Preparation for drug administration: Before use, insulin is injected into the reservoir 504 of the mechanical pump 5. As the insulin enters, the reservoir membrane 511 gradually expands until it reaches the nominal capacity. The injection port automatically closes after the injection is complete.

[0049] (ii) Exhaust operation: Before first use, the air in the infusion line must be purged. Place the mechanical pump 5 vertically with the end of the infusion hose 3 facing upwards. Press the corresponding button on the mechanical pump 5 several times to push the air in the line forward until continuous drops of medicine appear at the end of the infusion hose 3, indicating that the air in the system has been purged.

[0050] (III) Wearing and Insertion: like Figure 3 and Figure 4As shown, the infusion tubing 3 is sleeved on the outside of the puncture needle 2. The proximal end of the infusion tubing 3 is fixed to the infusion tubing needle seat 1 by the rivet 4 passing through the first through hole 101. The infusion tubing 3 is located at the tail of the puncture needle 2, forming a coaxial or near-coaxial puncture structure with the puncture needle 2 inside and the infusion tubing 3 outside.

[0051] The pre-injected and vented device is applied to the patient's abdomen or other suitable subcutaneous tissue site using a needle-assist device. The needle-assist device is activated, and its drive mechanism propels the rivet 4 puncture assembly into the skin—the puncture needle 2 leads the way, while the infusion tubing 3 follows simultaneously outside the puncture needle 2. Once the puncture is complete, the internal rebound device of the needle-assist device pulls the puncture needle 2 out of the infusion tubing 3 and removes it from the body, leaving the infusion tubing 3 in the subcutaneous tissue. Medical adhesive tape 502 at the bottom of the device securely adheres the entire device to the skin surface. The medication enters the infusion tubing 3 through the infusion tubing of the infusion tubing plate 506 and is delivered to the subcutaneous tissue, achieving a simplified catheter placement process of "one-time puncture, infusion tubing 3 in place," avoiding the traditional two-step operation of first inserting a steel needle and then inserting the infusion tubing 3.

[0052] (iv) Routine infusion When a patient needs to replenish medication, the infusion is triggered by pressing the button on the mechanical pump 5, and the medication is delivered to the subcutaneous tissue through the infusion tubing 3.

[0053] (v) End of use and replacement After the device's usage period ends, the patient simply peels the device off their skin, and the entire device is disposed of as medical waste.

[0054] This invention is primarily applied to disposable wearable drug infusion devices, particularly patch-type insulin pumps. The rivet-piercing structure of this invention can also be applied to traditional tubular insulin pumps or other drug infusion devices that require the infusion tubing 3 to be inserted subcutaneously. In use, the rivet 4 piercing assembly is connected to the infusion port of the traditional insulin pump. The skin puncture and insertion of the infusion tubing 3 are completed in one step through the rivet-piercing structure. After the puncture is complete, the puncture needle 2 is withdrawn by the rebound device of the needle assist device and exits the body, leaving the infusion tubing 3 subcutaneously. The medication enters the infusion tubing 3 through the infusion catheter of the traditional insulin pump and is delivered to the subcutaneous tissue. Furthermore, the rivet-piercing structure of this invention is not only suitable for insulin pumps but can also be widely applied to other drug infusion devices that require the infusion tubing 3 to be inserted subcutaneously, such as growth hormone infusion pumps, antibiotic infusion pumps, analgesic pumps, and chemotherapy pumps. The rivet puncture structure of the present invention has wide applicability and can be adapted to different types of drug infusion devices, enabling one-time puncture and catheter placement of the puncture needle 2 with the infusion tubing 3, reducing patient pain and improving the success rate of catheter placement.

[0055] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. An infusion device with a rivet piercing structure, characterized in that, The assembly includes a rivet puncture system, comprising an infusion tubing needle hub, a rivet, an infusion tubing, and a puncture needle, wherein: The infusion tubing needle hub is provided with a first through hole; The rivet is sleeved in the first through hole, and the rivet is fixedly connected to the infusion tubing needle seat. The rivet has a second through hole. The proximal end of the infusion tubing is disposed between the rivet and the inner wall of the first through hole, and the proximal end of the infusion tubing is held tightly against the outer wall of the rivet by the elastic restoring force of the infusion tubing. The distal end of the puncture needle can pass through the second through hole and extend beyond the second through hole and the first through hole. The puncture needle can move relative to the rivet along the length direction of the second through hole. The distal end of the infusion tubing is sleeved outside the puncture needle. The distal end of the puncture needle can extend beyond the distal end of the infusion tubing. The puncture needle can move relative to the infusion tubing along the length direction of the second through hole.

2. The infusion device with a rivet piercing structure according to claim 1, characterized in that, The rivet is detachably and securely connected to the infusion tubing needle seat.

3. The infusion device with a rivet piercing structure according to claim 1, characterized in that, The outer diameter of the rivet is configured such that when inserted into the first through hole, the rivet and the infusion tubing needle seat together form a compression fixation with the infusion tubing needle seat.

4. The infusion device with a rivet piercing structure according to claim 1, characterized in that, The infusion tubing needle hub is made of rubber.

5. The infusion device with a rivet piercing structure according to claim 1, characterized in that, The center lines of the first through hole and the second through hole are collinear.

6. The infusion device with a rivet piercing structure according to claim 1, characterized in that, When the puncture needle is fitted into the first through hole of the infusion tubing needle seat, the center line of the puncture needle is collinear with the center line of the first through hole.

7. The infusion device with a rivet piercing structure according to claim 1, characterized in that, The puncture needle is made of hard metal.

8. The infusion device with a rivet piercing structure according to claim 1, characterized in that, The infusion tubing is made of flexible polymer material.

9. The infusion device with a rivet piercing structure according to claim 1, characterized in that, The rivets are made of metal or polymer.

10. The infusion device with a rivet piercing structure according to claim 1, characterized in that, It also includes a mechanical pump, which includes a first drive mechanism and a second drive mechanism. The first drive mechanism is connected to the rivet puncture assembly and can drive the rivet puncture assembly to move along the center line of the puncture needle. The second drive mechanism is connected to the puncture needle and can drive the puncture needle to move along the center line of the puncture needle.

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