Sleeve ear penetrating device

Abstract

The utility model relates to the technical field of medical appliances, and discloses a sleeve ear penetrating device which comprises a clamping assembly, a positioning bin and an arc-shaped clamp capable of being connected with the outer surface of the positioning bin in a sliding mode, the end of the arc-shaped clamp is fixedly connected with a plugging bin, and the plugging bin can be matched with the positioning bin in an abutting mode through the arc-shaped clamp; the puncture assembly comprises a push rod capable of being horizontally and slidably connected to the interior of the positioning bin, a pull handle fixedly connected with the tail end of the push rod and a cannula puncture piece fixedly connected with the other tail end, away from the pull handle, of the push rod. The clamping assembly and the puncture assembly are connected together in a mechanical mode, simplification of complex instruments is achieved, operation is easy, fixing is convenient, and positioning is visual; meanwhile, by means of the built-in disinfection sponge and the design of the indwelling hose, disinfection is convenient and fast, the hose is not prone to disengagement after operation, cross infection is avoided, and a user can conveniently punch an ear hole safely and trustingly.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a cannula ear piercing device. Background Art

[0002] Ear piercing is an invasive procedure involving perforating a specific area of the ear to create a permanent opening for wearing earrings. While it has a long history in many cultures, modern methods and techniques still have drawbacks and room for improvement. Currently, ear piercing is mostly performed using lasers, needles, guns, or catheters. Laser piercing is costly, with expensive laser equipment and high operating costs. It also requires specialized expertise and a high skill threshold. Needle piercing is slow, requiring a long preparation and puncture time, and is difficult to sterilize and lacks accurate positioning. Gun piercing carries the risk of infection and allergies. Since it is often performed in non-medical settings with poor sterile conditions, there is a risk of post-operative bacterial infection, even severe infection. Furthermore, if a plastic catheter tube is not placed after piercing to prevent earrings, a small number of people may experience allergic reactions. Furthermore, the trauma is greater, and the high-speed puncture may damage skin tissue, leading to a longer healing time. While catheter piercing is safer and more popular, it requires specialized medical facilities, is complex, and the tube can easily become dislodged and difficult to secure. Therefore, a professional single-shot ear piercing instrument is needed, which has the advantages of simple operation, easy fixation, visual positioning, convenient disinfection, and the hose is not easy to fall out after surgery. At the same time, it can avoid cross infection to facilitate users to pierce their ears safely and with confidence. Utility Model Content

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above problems existing in the prior art, the present utility model is proposed.

[0005] Therefore, the technical problem to be solved by the present invention is to provide a cannula ear piercing device, which can solve the problems of the existing device such as complex operation, inconvenient fixation, inaccurate positioning, poor disinfection conditions, easy dislocation of the hose after surgery, and easy cross infection.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a cannula ear-piercing device, comprising: a clamping assembly, comprising a positioning chamber and an arc-shaped clamp slidably connected to the outer surface of the positioning chamber, the end of the arc-shaped clamp being fixedly connected to a blocking chamber, and the blocking chamber being abutted against the positioning chamber through the arc-shaped clamp; and

[0007] The puncture assembly comprises a push rod horizontally slidably connected to the interior of the positioning chamber, a pull handle fixedly connected to the end of the push rod, and a sleeve puncture piece fixedly connected to the other end of the push rod away from the pull handle.

[0008] As a preferred solution of the casing ear-piercing device of the present invention, wherein: the positioning chamber is a through-tube body, and a push rod guide cylinder, a first accommodating chamber and a second accommodating chamber are respectively provided inside, and the push rod guide cylinder passes through the positioning chamber;

[0009] The push rod guide tube is adapted to the shape of the push rod, and the push rod can slide parallel to the push rod guide tube;

[0010] Wherein, the first accommodating cavity is filled with a fixed disinfection sponge, and a through hole is provided at the center of the disinfection sponge;

[0011] Wherein, the second accommodating cavity is slidably connected to the extrusion member;

[0012] Wherein, the first accommodating cavity and the second accommodating cavity are arranged in parallel, and a sliding groove is provided on the outer surface of the positioning chamber.

[0013] As a preferred solution of the sleeve ear-piercing device described in the utility model, wherein: the arc-shaped clamp is a symmetrical structure, and the two ends are respectively connected to the positioning bin and the blocking bin; the blocking bin is a columnar body, and an ear plug groove is opened on one end face; the ear plug groove is fixed with an interference fit inside the ear plug groove; a reference block is set at the center position of the other end face of the blocking bin away from the ear plug groove.

[0014] As a preferred solution of the cannula ear piercing device described in the present invention, the pull handle is fixedly connected to the positioning chamber through a first elastic member, and the cannula piercing member is composed of two parts, namely a puncture needle fixedly connected to the push rod and a retention tube sleeved on the outer edge of the puncture needle.

[0015] As a preferred solution of the cannula ear piercing device of the present invention, the end of the puncture needle away from the push rod is provided with a puncture slope, and the end of the puncture needle close to the push rod is provided with a clamping column.

[0016] As a preferred embodiment of the cannula ear-piercing device of the present invention, the extrusion members are arranged in four groups circumferentially within the second accommodating chamber, and four corresponding limiting grooves are provided in the second accommodating chamber. The extrusion members are fixedly connected to the second elastic member, and the other end of the second elastic member is fixedly connected to the wall of the second accommodating chamber. An extrusion slope is provided on the surface of the extrusion member, and the extrusion slope can abut against the puncture slope.

[0017] Wherein, a sliding protrusion is provided on the contact surface between the extrusion member and the second accommodating cavity, and the sliding protrusion can be slidably connected with the limiting groove.

[0018] As a preferred solution of the cannula ear-piercing device of the present invention, a tube groove is provided at the horizontal center position of the ear plug, and a tube seat is provided at the end of the retention tube away from the blocking chamber.

[0019] As a preferred solution of the sleeve ear-piercing device of the present invention, a protruding seat is provided on the outer surface of the blocking chamber, and one end portion of the arc-shaped clamp is fixedly connected to the protruding seat.

[0020] As a preferred solution of the sleeve ear-piercing device of the present invention, the arc-shaped clamp is fixedly connected to a sliding seat near the end surface of the pull handle, and two symmetrical slots are provided.

[0021] As a preferred solution of the sleeve ear-piercing device of the utility model, wherein: a movable bayonet is provided on the surface of the sliding groove, a third elastic member symmetrically arranged is fixedly connected in the sliding groove near the surface of the pull handle, the third elastic member is fixedly connected to the arc-shaped clamp surface, and the bayonet can slide with the movable bayonet.

[0022] The beneficial effects of the present invention are as follows: the present invention simplifies a complex instrument by mechanically connecting the clamping component and the puncture component, making the operation simple, the fixation convenient, and the positioning visual; at the same time, the built-in disinfection sponge and the design of the indwelling hose make disinfection convenient, and the hose is not easy to fall out after surgery to avoid cross infection, so that users can pierce their ears safely and with confidence. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 inventive work. Among them:

[0024] Figure 1 This is an overall schematic diagram of a cannula ear piercing device according to an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the use state of the cannula ear piercing device according to an embodiment of the present invention;

[0026] Figure 3 A schematic diagram of a regular cross-sectional structure of a cannula ear-piercing device according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic cross-sectional view of the ear-piercing device according to an embodiment of the present invention when in use;

[0028] Figure 5 、 6 This is a perspective schematic diagram of a cannula ear piercing device in use according to an embodiment of the present invention. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0032] Furthermore, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0033] Example 1

[0034] Reference Figure 1-6 This is the first embodiment of the utility model. This embodiment provides a cannula ear piercing device. By mechanically connecting the clamping component and the puncture component together, the complex instrument is simplified, making the operation simple, the fixation convenient, and the positioning visual. At the same time, the built-in disinfection sponge and the design of the indwelling hose make disinfection convenient, and the hose is not easy to fall out after surgery to avoid cross infection, so that users can safely and reliably pierce their ears. It includes

[0035] The clamping assembly 100 and puncture assembly 200 work together and are both disposable medical devices to prevent cross-infection. The clamping assembly 100 primarily secures the pierced ear, while also providing positioning and disinfection functions. The puncture assembly 200 primarily performs the piercing operation.

[0036] Furthermore, the clamping assembly 100 includes three parts: a positioning bin 101, an arc clamp 102 and a blocking bin 103. The positioning bin 101 is used to limit the movement trajectory of the puncture assembly 200 to avoid the problem of deviation in the perforation of the puncture assembly 200, and ensure that the perforation work proceeds smoothly along the predetermined movement trajectory direction of the positioning bin 101; the arc clamp 102 is earlobe-shaped as a whole, and is used to connect the positioning bin 101 and the blocking bin 103. The arc clamp 102 is fixedly connected to the blocking bin 103 to form a whole, and is slidably connected to the positioning bin 101 through a slot. The position of the positioning bin 101 can be adjusted to change the opening size of the arc clamp 102, so that the entire clamping assembly 100 can adapt to the size of the clamped object and fit tightly. The end faces of the positioning bin 101 and the blocking bin 103 that are in contact with each other are both smooth and flat. Under normal conditions, the positioning bin 101, the blocking bin 103 and the arc clamp 102 cooperate with each other to make the positioning bin 101 and the blocking bin 103 fit tightly to ensure a sterile environment inside the positioning bin 101.

[0037] Furthermore, the puncture assembly 200 includes a push rod 201 that can be horizontally slidably connected to the inside of the positioning chamber 101. The push rod 201 is a solid cylinder, which can ensure that the puncture assembly 200 moves horizontally in the positioning chamber 101. The two ends of the push rod 201 are fixedly connected to the pull handle 202 and the sleeve puncture piece 203. The pull handle 202 is located outside the positioning chamber 101, has a diameter equal to that of the positioning chamber 101, and is cylindrical; the sleeve puncture piece 203 is in the shape of a long needle and is used to puncture objects, and the pull handle 202, the push rod 201 and the sleeve puncture piece 203 are coaxial in the horizontal direction.

[0038] That is, the entire puncture process is as follows: external force is applied to the positioning chamber 101 to make the arc clamp 101 open, and the object to be punctured, such as the earlobe, is placed in the arc clamp 101. The external force is released, and the positioning chamber 101 moves in the opposite direction due to the interaction force between the positioning chamber 101 and the arc clamp 101, and approaches the blocking chamber 103. The opening of the arc clamp 101 is reduced, and the earlobe is squeezed and fixed in the opening of the arc clamp 101; external force is applied to the pull handle 202, and the push rod 201 fixedly connected to the pull handle 202 moves in a directional manner along the direction restricted by the positioning chamber 101, and the cannula puncture component 203 is fixedly connected to the push rod 201, which drives the cannula puncture component 203 to move in a directional manner to complete the puncture action.

[0039] The clamping assembly 100 and puncture assembly 200 in this embodiment can be made of existing hard materials such as sterile, blunt plastics, supplemented by materials such as polyester, nylon, and polyurethane. Therefore, the overall material of the device is simple and affordable, while also having strong toughness, making it easy to operate and fix, and being disposable, it avoids cross infection.

[0040] Example 2

[0041] Reference Figure 1-6 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment and differs from the previous embodiment in that the positioning chamber 101 is a through-tube containing three hollow cavities: a push rod guide tube 101a, a first accommodating chamber 101b, and a second accommodating chamber 101c, all of which are interconnected. Furthermore, a sliding groove 101f is provided on the outer surface of the positioning chamber 101 for sliding connection with the arc-shaped clamp 102.

[0042] Specifically, the push rod guide cylinder 101a is a strip-shaped column that passes through the two end surfaces of the entire positioning chamber 101 and passes through the first accommodating chamber 101b and the second accommodating chamber 101c. The cross section of the push rod guide cylinder 101a is completely consistent with the cross section of the push rod 201, and the push rod 201 can slide inside the push rod guide cylinder 101a; the first accommodating chamber 101b and the second accommodating chamber 101c are both pie-shaped columns of the same size and shape and are arranged in parallel. The first accommodating chamber 101b is connected to the second accommodating chamber 101c. A sterile sponge 101d is fixedly filled in the first accommodating chamber 101b. The sterile sponge 101d is able to completely fill the first accommodating chamber 101b without moving or falling out. The sterile sponge 101d is made of a soft material and has a through hole 101d-1 at its center. The through hole 101d-1 is large enough to allow the cannula puncture needle 203 to slide through the surface without causing the sterile sponge 101d to fall out of the first accommodating chamber 101b, thereby wiping and disinfecting the surface of the cannula puncture needle 203. The second accommodating chamber 101c is slidably connected to the extrusion piece 101e. The extrusion pieces 101e are arranged in a circular array of four groups, which conform to the surface of the end of the second accommodating chamber 101c. In general, a force is applied to the handle 202, and the puncture assembly 200 passes through the positioning chamber 101, and successively penetrates into the push rod guide cylinder 101a to limit the movement direction, then penetrates into the second accommodating chamber 101c, enters the first accommodating chamber 101b for disinfection, and then passes out of the positioning chamber 101 to complete the puncture action.

[0043] Furthermore, the pull handle 202 is fixedly connected to the positioning chamber 101 by a first elastic member 202a. The first elastic member 202a wraps around the push rod 201 but does not fit closely. The sleeve puncture member 203 fixedly connected to the push rod 201 consists of two parts, namely a puncture needle 203a fixedly connected coaxially with the push rod 201 and a retention tube 203b sleeved on the outer edge of the puncture needle 203a. The retention tube 203b is a movable tubular object, that is, an ear stud catheter, which serves as an ear stud retained in the earlobe hole after puncture. The material is the same as that of a general retention needle, using polyester, nylon, polyurethane and other materials. A tube seat 203b-1 protruding from the tube wall is provided at the end of the retention tube 203b.

[0044] Furthermore, an ear plug groove 103a is provided in the plugging chamber 103 for securing the ear plug 103b. The ear plug 103b serves as a plug for the indwelling tube 203b to ensure that the indwelling tube 203b does not fall out of the aperture. A tube groove 103b-1 is provided at the horizontal center of the ear plug 103b. The indwelling tube 203b can pass through the tube groove 103b-1, and the indwelling tube 203b and the tube groove 103b-1 have an interference fit, making it difficult for the indwelling tube 203b to fall out. At the same time, a visual reference block 103c is provided at the center of the other end face of the plugging chamber 103, away from the ear plug groove 103a. Due to the positioning of the positioning chamber 101 for the puncture assembly 200, the exit position of the puncture assembly 200 is fixed. The position of the reference block 103c relatively coincides with the exit position of the puncture assembly 200, providing a more intuitive visual reference for the operator.

[0045] Based on the above, after the puncture assembly 200 penetrates the positioning chamber 101, the direction of movement is limited, the indwelling tube 203b is disinfected through the first accommodating chamber 101b, pierces the earlobe, and has an interference fit with the ear plug 103b clamped in the blocking chamber 103 on the back of the earlobe. Then, a reverse force is applied to the pull handle 202, and the indwelling tube 203b is stuck by the extrusion member 101e, and is released from the puncture needle 203a and the positioning chamber 101. The entire device is removed, and the indwelling tube 203b and ear plug 103b remain in the ear hole, and the puncture action is completed. Because the tube base 203b-1 and the ear plug 103b limit the indwelling tube 203b in front and back, the indwelling tube 203b is fixed in the ear hole and does not fall out easily.

[0046] Example 3

[0047] Reference Figure 1-6This is the third embodiment of the present invention. This embodiment provides a cannula ear-piercing device. This embodiment is based on the previous embodiment and differs from the previous embodiment in that: the extrusion members 101e are arranged in four evenly spaced groups circumferentially within the second accommodating chamber 101c. Sliding protrusions 101e-3 are provided on the surface of the extrusion members 101e. Four corresponding limiting grooves 101c-1 are provided in the second accommodating chamber 101c. The extrusion members 101e can move centripetally or centrifugally by sliding the sliding protrusions 101e-3 within the limiting grooves 101c-1. The extrusion members 101e are fixedly connected to the side arc wall of the second accommodating chamber 101c via a second elastic member 101e-1. The second elastic member 101e-1 serves to fix and connect the extrusion members 101e. An extrusion slope 101e-2 is provided on the surface of the extrusion member 101e opposite to the second elastic member 101e-1. When the extrusion slope 101e-2 is acted upon by an external force, the extrusion member 101e performs centrifugal motion by sliding the sliding protrusion 101e-3 in the limiting groove 101c-1. The distance between the four extrusion members 101e arranged in a circle increases, and the diameter of the hole that can be passed through increases.

[0048] Furthermore, a puncture slope 203a-1 is provided at the end of the puncture needle 203a away from the push rod 201. The puncture slope 203a-1 is conical and is used to pierce the ear. A clamping column 203a-2 is provided at the end of the puncture needle 203a close to the push rod 201. When the puncture needle 203a approaches the extrusion piece 101e, the extrusion bevel 101e-2 and the puncture bevel 203a-1 are in contact with each other, the second elastic piece 101e-1 is forced to retract, the extrusion piece 101e performs centrifugal motion, the diameter between the four extrusion pieces 101e increases, and the surface of the cannula puncture piece 203 contacts the extrusion piece 101e and slides; when the tube seat 203b-1 passes through the gap between the four extrusion pieces 101e, since the diameter of the clamping column 203a-2 is smaller than the diameter of the tube seat 203b-1, the second elastic piece 101e-1 opens, and the gap between the four extrusion pieces 101e is reduced. At this time, a reverse force is applied to the puncture assembly 200, and the tube seat 203b-1 is stuck by the four extrusion pieces 101e and cannot be withdrawn, and the indwelling tube 203b is separated from the puncture needle 203a.

[0049] Furthermore, the two ends of the arc-shaped clamp 102 are connected to the blocking chamber 103 and the positioning chamber 101, respectively. A protruding seat 103d is provided on the outer surface of the blocking chamber 103, which serves as a medium for fixing the arc-shaped clamp 102 and the blocking chamber 103. The other end of the arc-shaped clamp 102 is provided with two symmetrical slots 102b, and a sliding seat 102a is also fixedly connected to the end surface. The sliding seat 102a is used to prevent relative twisting between the arc-shaped clamp 102 and the sliding slot 101f on the positioning chamber 101. A movable bayonet 101f-1 is provided on the surface of the sliding groove 101f, and the bayonet 102b can be nested with the movable bayonet 101f-1, so that the arc clamp 102 can slide within the horizontal range of the movable bayonet 101f-1. A third elastic member 101f-2 is symmetrically fixedly connected to the surface of the pull handle 202 in the sliding groove 101f. The third elastic member 101f-2 is fixedly connected to the surface of the arc clamp 102, which can limit the displacement of the arc clamp 102. At the same time, in normal state, the blocking bin 103 and the positioning bin 101 are in a fitted state under the joint action of the arc clamp 102 and the third elastic member 101f-2.

[0050] It is important to note that the construction and arrangement of the present application shown in a number of different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, colors, directional changes, etc.) without departing substantially from the novel teachings and advantages of the subject matter described in this application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0051] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0052] It will be appreciated that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will, for those of ordinary skill having the benefit of this disclosure, be a routine undertaking of design, fabrication, and production without undue experimentation.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, and all of these should be included in the scope of the claims of the present invention.

Claims

1. A cannula ear piercing device, characterized in that: include, A clamping assembly (100) comprises a positioning chamber (101) and an arc-shaped clamp (102) slidably connected to the outer surface of the positioning chamber (101); an end of the arc-shaped clamp (102) is fixedly connected to a blocking chamber (103); and the blocking chamber (103) is abutted against the positioning chamber (101) via the arc-shaped clamp (102); as well as The puncture assembly (200) comprises a push rod (201) horizontally slidably connected to the interior of the positioning chamber (101), a pull handle (202) fixedly connected to the end of the push rod (201), and a cannula puncture member (203) fixedly connected to the other end of the push rod (201) away from the pull handle (202); The positioning chamber (101) is a through-tube body, and a push rod guide cylinder (101a), a first accommodating chamber (101b) and a second accommodating chamber (101c) are respectively arranged inside the positioning chamber (101). The push rod guide cylinder (101a) passes through the positioning chamber (101). The push rod guide cylinder (101a) is adapted to the shape of the push rod (201), and the push rod (201) can slide parallel to the push rod guide cylinder (101a); The first accommodating cavity (101b) is filled with a fixed disinfectant sponge (101d), and a through hole (101d-1) is provided at the center of the disinfectant sponge (101d); Wherein, an extrusion piece (101e) is slidably connected in the second accommodating cavity (101c); The first accommodating cavity (101b) and the second accommodating cavity (101c) are arranged in parallel, and a sliding groove (101f) is provided on the outer surface of the positioning chamber (101).

2. The cannula ear piercing device according to claim 1, characterized in that: The arc-shaped clamp (102) is a symmetrical structure, with two ends respectively connected to the positioning chamber (101) and the blocking chamber (103); the blocking chamber (103) is a columnar body, with an ear plug groove (103a) provided on one end face, an ear plug (103b) is fixed in the ear plug groove (103a) by interference fit, and a reference block (103c) is provided at the center of the other end face of the blocking chamber (103) away from the ear plug groove (103a).

3. The cannula ear piercing device according to claim 2, characterized in that: The pull handle (202) is fixedly connected to the positioning chamber (101) via a first elastic member (202a), and the cannula puncture member (203) consists of two parts, namely a puncture needle (203a) fixedly connected to the push rod (201) and a retention tube (203b) sleeved on the outer edge of the puncture needle (203a).

4. The cannula ear piercing device according to claim 3, characterized in that: The end of the puncture needle (203a) away from the push rod (201) is provided with a puncture slope (203a-1), and the end of the puncture needle (203a) close to the push rod (201) is provided with a clamping column (203a-2).

5. The cannula ear piercing device according to claim 4, characterized in that: The extrusion pieces (101e) are arranged in four groups in a circumference within the second accommodating chamber (101c), and four corresponding limiting grooves (101c-1) are provided in the second accommodating chamber (101c); the extrusion pieces (101e) are fixedly connected to the second elastic piece (101e-1), and the other end of the second elastic piece (101e-1) is fixedly connected to the cavity wall of the second accommodating chamber (101c); an extrusion inclined surface (101e-2) is provided on the surface of the extrusion piece (101e), and the extrusion inclined surface (101e-2) can abut against the puncture inclined surface (203a-1); A sliding protrusion (101e-3) is provided on the contact surface between the extrusion piece (101e) and the second accommodating cavity (101c), and the sliding protrusion (101e-3) can be slidably connected with the limiting groove (101c-1).

6. The cannula ear piercing device according to claim 3 or 5, characterized in that: A tube groove (103b-1) is provided at the horizontal center of the ear plug (103b), and a tube seat (203b-1) is provided at the end of the indwelling tube (203b) away from the blocking chamber (103).

7. The cannula ear piercing device according to claim 6, characterized in that: A protruding seat (103d) is provided on the outer surface of the blocking chamber (103), and one end of the arc-shaped clamp (102) is fixedly connected to the protruding seat (103d).

8. The cannula ear piercing device according to claim 7, characterized in that: The arc-shaped clamp (102) is fixedly connected to a sliding seat (102a) on the surface of the end portion near the pull handle (202), and is provided with two symmetrical clamping grooves (102b).

9. The cannula ear piercing device according to claim 8, characterized in that: A movable bayonet (101f-1) is provided on the surface of the sliding groove (101f), and a third elastic member (101f-2) is fixedly connected symmetrically to the surface of the handle (202) in the sliding groove (101f), the third elastic member (101f-2) is fixedly connected to the surface of the arc-shaped clamp (102), and the bayonet (102b) can be slidably matched with the movable bayonet (101f-1).

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