Puncture mechanism

Abstract

The utility model relates to a puncture mechanism, and relates to the technical field of medical instruments, the puncture mechanism comprises a puncture part and a connecting bottle, the puncture part is detachably connected with the connecting bottle, the connecting bottle is provided with a locking part, the connecting bottle is used for sleeving a medicine bottle, the locking part abuts against the outer wall of the medicine bottle, and the locking part is used for locking the medicine bottle. The puncture piece is located in the connecting bottle and inserted into the medicine bottle. Through the design of the locking piece and the detachable connection, the connection stability with the medicine bottle is remarkably improved, meanwhile, the overall cost is reduced, the connection bottle can be tightly attached to the outer wall of the medicine bottle through the application of the locking piece, and therefore the connection stability with the medicine bottle is improved; the risk of leakage or operation failure possibly caused by loose or infirm connection is reduced; the puncture piece is detachably connected with the connecting bottle, so that the connecting bottle can be repeatedly applied to different puncture pieces, the maintenance cost of equipment is reduced, only the puncture piece needs to be replaced instead of the whole device, and meanwhile consumables are reduced.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and particularly to a puncturing mechanism. Background Art

[0002] A puncture device is an indispensable equipment in the medical field, which is used to safely and effectively insert a needle into a medicine bottle or other containers so as to extract the liquid medicine or perform an injection using a syringe. The current design of the puncture device usually adopts the method of directly piercing into the medicine bottle and relies on the interference fit with the inner rubber stopper of the medicine bottle to ensure fixation.

[0003] The key to this design lies in achieving secure fixation through the frictional force and sealing performance between the external structure of the puncture device and the rubber stopper of the medicine bottle. The rubber stopper is usually designed to prevent the liquid medicine from being contaminated or leaking during storage and transportation. However, although this design seems simple and effective in theory, it still faces some technical challenges in actual use. One of the main problems is the phenomenon of detachment or liquid leakage that may occur when the puncture device is inverted for injection. Since the interference fit between the rubber stopper and the puncture device sometimes cannot provide sufficient stability, especially after long-term use or frequent inversion, the frictional force may weaken or the stopper itself may become loose, resulting in the accidental detachment of the puncture device from the medicine bottle or the leakage of the liquid medicine during injection.

[0004] To solve these problems, the prior art usually introduces an additional snap structure to enhance the connection stability between the puncture device and the medicine bottle. The existing snap structures are usually integrally designed with the puncture device and provide additional support and fixation through methods such as buckles, grooves or locking mechanisms when the puncture device is inserted into the medicine bottle. Although this design is effective, it also brings a significant cost increase because it requires adding complex structures to the puncture device itself or its manufacturing process. Therefore, there is an urgent need to develop a puncture device that can improve the connection stability with the medicine bottle and reduce costs at the same time. Summary of the Utility Model

[0005] In order to develop a puncture device that can improve the connection stability with the medicine bottle and reduce costs at the same time, this application provides a puncturing mechanism.

[0006] The puncturing mechanism provided by this application adopts the following technical solution:

[0007] A puncturing mechanism includes a puncturing member and a connecting bottle. The puncturing member is detachably connected to the connecting bottle. The connecting bottle is provided with a locking member. The connecting bottle is used to be sleeved on the medicine bottle, and the locking member abuts against the outer wall of the medicine bottle. The puncturing member is partially located inside the connecting bottle and inserted into the medicine bottle.

[0008] By adopting the above technical solution, before use, the puncturing member is connected to the connecting bottle. When it is necessary to puncture the medicine bottle, the connecting bottle is sleeved on the medicine bottle. At this time, the locking member will abut against the outer wall of the medicine bottle to ensure stable connection between the connecting bottle and the medicine bottle; during this process, the application of the locking member enables the connecting bottle to closely fit on the outer wall of the medicine bottle, thereby improving the connection stability with the medicine bottle. This design can reduce the risk of leakage or operation failure that may be caused by loose or insecure connection; and in this application, the puncturing member and the connecting bottle are designed to be detachably connected, enabling the connecting bottle to be repeatedly applied to the use of different puncturing members, reducing the maintenance cost of the equipment. Only the puncturing member needs to be replaced instead of the whole device, and at the same time, it also reduces the frequency of consumable replacement and equipment replacement; through the design of the locking member and the detachable connection, the puncturing mechanism of this application significantly improves the connection stability with the medicine bottle and reduces the overall cost, and is applicable to various medicine processing scenarios that require safety, stability, and cost-effectiveness.

[0009] In a specific feasible embodiment, the locking member includes an elastic arm provided on the connecting bottle. When the connecting bottle is sleeved on the medicine bottle, the elastic arm spreads outwards and abuts tightly against the outer wall of the medicine bottle.

[0010] By adopting the above technical solution, when the connecting bottle is sleeved on the medicine bottle, the elastic arm is restricted by the outer wall of the medicine bottle. Due to its elasticity, the elastic arm spreads outwards and tightly abuts against the outer wall of the medicine bottle. This design ensures that the connecting bottle is firmly fixed on the medicine bottle, preventing leakage or unstable operation that may be caused by loose connection; this design enables the connecting bottle to be easily sleeved on the medicine bottle and quickly and firmly fixed without the need for complex additional tools or steps, which simplifies the operation process of the operator and thus improves the operation efficiency.

[0011] In a specific feasible embodiment, the connecting bottle is provided with a fixing seat. The puncturing member is inserted into the connecting bottle from the fixing seat, and the puncturing member abuts against the fixing seat; the fixing seat is provided with a first locking groove and a second locking groove, and the puncturing member is provided with a first locking portion and a second locking portion. By rotating the puncturing member, the first locking portion is rotated into and fixed in the first locking groove, and the second locking portion is rotated into and fixed in the second locking groove.

[0012] By adopting the above technical solution, when assembling the puncture mechanism, the puncture member is inserted into the connection bottle from the fixed seat, and then the puncture member is rotated. Through rotation, the first locking portion of the puncture member will be positioned and locked into the first locking groove, and the second locking portion will be positioned and locked into the second locking groove, ensuring that the puncture member is securely fixed on the fixed seat and will not move or loosen accidentally; the matching design of the locking groove and the locking portion ensures the firm fixation of the puncture member on the fixed seat, preventing the displacement or accidental detachment of the puncture member that may occur during the operation, thereby reducing the operation risk and ensuring the safety and stability of the operation.

[0013] In a specific feasible embodiment, the distance from the first locking groove to the center of the fixed seat is set as A, the distance from the second locking groove to the center of the fixed seat is set as B, A is greater than B, and A:B is 5:4.

[0014] By adopting the above technical solution, due to the difference between A and B, the first locking portion can only be inserted into the first locking groove with a farther distance, while the second locking portion can only be inserted into the second locking groove with a closer distance. This configuration ensures that each locking portion can only be correctly inserted into its corresponding slot during installation, preventing misinstallation or incorrect installation during the assembly process, and ensuring the correctness and reliability of each locking component during the assembly process.

[0015] In a specific feasible embodiment, the connection bottle and / or the puncture member are provided with a marking structure, and the marking structure indicates that the first locking portion is rotated into the first locking groove and the second locking portion is rotated into the second locking groove.

[0016] By adopting the above technical solution, by using the design of the marking structure, it can guide the first locking portion to be correctly inserted into the predetermined first locking groove and the second locking portion to be correctly inserted into the predetermined second locking groove to ensure the accuracy and safety of the assembly; and this design can not only simplify the assembly operation but also reduce the problems or damages that may be caused by assembly errors.

[0017] In a specific feasible embodiment, the puncture member includes a puncture needle and a protective seat. The first locking portion and the second locking portion are arranged on the protective seat. The protective seat abuts against the fixed seat. The puncture needle passes through the protective seat. The puncture needle is provided with a connector. The puncture needle is located inside the connection bottle and inserted into the medicine bottle, and the connector is used to connect a syringe.

[0018] By adopting the above technical solution, during assembly, the puncture needle and the protective seat are correctly connected and locked to the fixed seat by using the first locking part and the second locking part. The puncture needle is located inside the connecting bottle. When puncture is required, the connecting bottle is sleeved on the medicine bottle, so that the puncture needle penetrates through the medicine bottle and enters the interior of the medicine bottle. Then the connector is connected to the syringe to extract or inject medicine from the medicine bottle; the design and working principle of the puncturing member, by combining the protective seat, the puncture needle, the locking member and the connector, the synergistic effect of these components ensures the safety, effectiveness and accuracy of the medicine during transportation, and also guarantees the safety of the operator and the patient.

[0019] In a specific feasible embodiment, the connector is provided with an opening and closing member, and the opening and closing member is arranged to be able to open or close the connector under the action of an external force.

[0020] By adopting the above technical solution, the opening and closing member can control the opening and closing state of the connector. When the connector is in the closed state, the opening and closing member can effectively block the connector to prevent the medicine from flowing out or being contaminated when not needed; the existence of the opening and closing member not only enhances the safety of the connector, but also improves the convenience of operation. The operator can control the flow of the medicine through simple operations, and at the same time ensure that the connector remains closed when not in use, reducing potential contamination or loss.

[0021] In a specific feasible embodiment, the connector and the opening and closing member are connected by a thread.

[0022] By adopting the above technical solution, the detachable threaded connection allows different sizes or types of opening and closing members to be combined with the connector, thus increasing the flexibility of the device. The detachable design enables the opening and closing member and the connector to be relatively easily disassembled and replaced; and the threaded connection is relatively simple and intuitive compared with other types of connections. The threaded connection can provide a good sealing effect, which can prevent air or other pollutants from entering the puncturing mechanism or the medicine bottle, and at the same time prevent the leakage of the medicine.

[0023] In a specific feasible embodiment, a strengthening part is provided on one side of the protective seat close to the connector, and the strengthening part is connected to the puncture needle and the protective seat.

[0024] By adopting the above technical solution, the overall structural strength of the protective seat is enhanced by using the design of the strengthening part, which can prevent the protective seat from deforming or cracking due to stress, thereby extending the service life of the device; and it ensures the firm connection between the protective seat and the puncture needle, effectively supports the puncture needle, improves the stability, and ensures that the puncture needle remains stable, without shaking or displacement during use.

[0025] In a specific feasible embodiment, the connecting bottle is provided with a gripping recess, and the gripping recess is provided with anti-slip lines.

[0026] By adopting the above technical solution, the design of the concave portion is grasped so that the user can more easily hold and operate the connection bottle. The addition of anti-slip patterns further increases the stability of grasping, not only improving the convenience of operation but also enhancing the safety during operation, ensuring that the operator can firmly grasp and control the connection bottle, and preventing accidental leakage or contamination of drugs or samples.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. For the puncture mechanism of the present application, through the design of the locking member and detachable connection, the connection stability with the drug bottle is significantly improved, while the overall cost is reduced, which is applicable to various drug handling scenarios that require safety, stability, and cost-effectiveness; the application of the locking member enables the connection bottle to closely fit on the outer wall of the drug bottle, thereby improving the connection stability with the drug bottle. This design can reduce the risk of leakage or operation failure that may be caused by loose or insecure connection; the puncture member and the connection bottle are detachable, enabling the connection bottle to be reused with different puncture members, reducing the maintenance cost of the equipment. Only the puncture member needs to be replaced instead of the entire device, and at the same time, the frequency of consumable and equipment replacement is also reduced;

[0029] 2. For the puncture mechanism of the present application, by using the fact that the distance from the first locking groove to the center of the fixed seat is greater than the distance from the second locking groove to the center of the fixed seat, the first locking portion can only be inserted into the farther first locking groove, while the second locking portion can only be inserted into the nearer second locking groove. This configuration ensures that each locking portion can only be correctly inserted into its corresponding slot during installation, preventing misinstallation or incorrect installation during the assembly process, and ensuring the correctness and reliability of each locking component during the assembly process;

[0030] 3. For the puncture mechanism of the present application, the design of the concave portion for grasping enables the user to more easily hold and operate the connection bottle. The addition of anti-slip patterns further increases the stability of grasping, not only improving the convenience of operation but also enhancing the safety during operation, ensuring that the operator can firmly grasp and control the connection bottle, and preventing accidental leakage or contamination of drugs or samples. Description of the Drawings

[0031] Figure 1 is a schematic structural diagram of the puncture mechanism of the embodiment of the present application.

[0032] Figure 2 is an exploded view for showing the puncture mechanism.

[0033] Figure 3 is a cross-sectional view for showing the puncture mechanism.

[0034] Figure 4 is a cross-sectional view for showing the first locking groove and the second locking groove.

[0035] Figure 5 It is an exploded view for showing the puncturing member.

[0036] Description of reference numerals: 1. Puncturing member; 11. Puncturing needle; 111. Needle body; 112. Tube body; 12. Protection seat; 121. First seat body; 122. Second seat body; 13. Connector; 14. First locking portion; 15. Second locking portion; 2. Connecting bottle; 3. Locking member; 31. Elastic arm; 4. Fixed seat; 41. First locking groove; 42. Second locking groove; 43. Buckling portion; 5. Opening and closing member; 51. Cover body; 52. Cover plate; 521. Sealing portion; 6. Reinforcing portion; 7. Grasping concave portion; 8. Anti-slip pattern; 9. Marking structure. Detailed implementation manners

[0037] The following further describes the present application in detail with reference to Figures 1-5 the accompanying drawings.

[0038] Referring to Figure 1 and Figure 2 In an embodiment of the present application, a puncturing mechanism is disclosed, including a puncturing member 1 and a connecting bottle 2. In this embodiment, the connecting bottle 2 includes, but is not limited to, a transparent bottle body with both ends penetrating. The puncturing member 1 is detachably connected to the connecting bottle 2, and the connecting bottle 2 is provided with a locking member 3;

[0039] The connecting bottle 2 is used to be sleeved on a medicine bottle, the locking member 3 abuts against the outer wall of the medicine bottle, and a part of the puncturing member 1 is located inside the connecting bottle 2 and inserted into the medicine bottle;

[0040] Through the design of the locking member 3 and the detachable connection, the puncturing mechanism of the present application significantly improves the connection stability with the medicine bottle, and at the same time reduces the overall cost, and is applicable to various medicine processing scenarios that require safety, stability and economic efficiency; before use, the puncturing member 1 is connected to the connecting bottle 2. When it is necessary to puncture the medicine bottle, the connecting bottle 2 is sleeved on the medicine bottle. At this time, the locking member 3 will abut against the outer wall of the medicine bottle to ensure stable connection between the connecting bottle 2 and the medicine bottle;

[0041] During this process, the application of the locking member 3 enables the connecting bottle 2 to closely fit against the outer wall of the medicine bottle, thereby improving the connection stability with the medicine bottle. This design can reduce the risk of leakage or operation failure that may be caused by loose or insecure connection; and the present application designs the puncturing member 1 and the connecting bottle 2 to be detachably connected, enabling the connecting bottle 2 to be reused for different puncturing members 1, reducing the maintenance cost of the equipment, only replacing the puncturing member 1 instead of the entire device, and at the same time reducing the frequency of consumable and equipment replacement.

[0042] Referring to Figure 2 and Figure 3, the locking member 3 includes elastic arms 31 provided on the connecting bottle 2. The elastic arms 31 include but are not limited to at least two. In this embodiment, two elastic arms 31 are provided. The two elastic arms 31 are symmetrically arranged on the connecting bottle 2. In this embodiment, the elastic arms 31 and the connecting bottle 2 are integrally formed, for example. When the connecting bottle 2 is sleeved on the medicine bottle, the two elastic arms 31 open outwards and abut against the outer wall of the medicine bottle;

[0043] During the use of the puncturing mechanism, when the connecting bottle 2 is sleeved on the medicine bottle, the elastic arms 31 are restricted by the outer wall of the medicine bottle. Due to their elasticity, the elastic arms 31 open outwards and tightly abut against the outer wall of the medicine bottle, so that the connecting bottle 2 is firmly fixed on the medicine bottle, preventing leakage or unstable operation that may be caused by loose connection; This design enables the connecting bottle 2 to be easily sleeved on the medicine bottle and quickly and firmly fixed, without the need for complex additional tools or steps, which simplifies the operation process of the operator and thus improves the operation efficiency.

[0044] The puncturing member 1 includes a puncturing needle 11 and a protective seat 12. The puncturing needle 11 is inserted through the protective seat 12. The puncturing needle 11 is provided with a connector 13. The puncturing needle 11 is located inside the connecting bottle 2 and inserted into the medicine bottle. The connector 13 is used to connect a syringe. In this embodiment, the puncturing needle 11 includes a needle body 111 and a tube body 112. The protective seat 12 includes a first seat body 121 and a second seat body 122. The tube body 112 is provided on the first seat body 121. The connector 13 is provided on the tube body 112. The needle body 111 is provided on the second seat body 122. The first seat body 121 and the second seat body 122 are provided with through holes connecting the tube body 112 and the needle body 111. The needle body 111, the tube body 112, and the connector 13 are designed to be connected in communication. In this embodiment, the tube body 112, the first seat body 121, and the connector 13 are integrally formed, and the needle body 111 and the second seat body 122 are integrally formed. The first seat body 121 and the second seat body 122 are integrally formed by hot melting, for example;

[0045] A reinforcing portion 6 is provided on one side of the protective seat 12 close to the connector 13. In this embodiment, the reinforcing portion 6 is provided on the first seat body 121. The reinforcing portion 6 is connected to the tube body 112 of the puncturing needle 11 and the first seat body 121 of the protective seat 12. The reinforcing portion 6 is provided in several numbers and symmetrically arranged on the protective seat 12. In this embodiment, the surface of the reinforcing portion 6 is provided with hollow anti-slip patterns 8; Through the design of the reinforcing portion 6, the overall structural strength of the protective seat 12 is enhanced, which can prevent the protective seat 12 from deforming or cracking due to stress, thereby extending the service life of the equipment; And ensure the firm connection between the protective seat 12 and the puncturing needle 11, effectively support the puncturing needle 11, improve the stability, and ensure that the puncturing needle 11 remains stable, without shaking or displacement during use;

[0046] The connecting bottle 2 is provided with a fixing seat 4. The puncture needle 11 of the puncture member 1 is inserted into the connecting bottle 2 from the fixing seat 4, and the protective seat 12 of the puncture member 1 abuts against the fixing seat 4. In this embodiment, the second seat body 122 in the protective seat 12 abuts against the fixing seat 4. In this embodiment, the fixing seat 4 is provided with two buckling portions 43. The two buckling portions 43 jointly abut the protective seat 12 against the fixing seat 4. The two buckling portions 43 are respectively provided with a first locking groove 41 and a second locking groove 42. The protective seat 12 is provided with a first locking portion 14 and a second locking portion 15. In this embodiment, the first locking portion 14 and the second locking portion 15 are arranged on the first seat body 121. Rotate the puncture member 1, the first locking portion 14 rotates into and is fixed in the first locking groove 41, and the second locking portion 15 rotates into and is fixed in the second locking groove 42.

[0047] Refer to Figure 4 and Figure 5 , the distance from the first locking groove 41 to the center of the fixing seat 4 is set as A, and the distance from the second locking groove 42 to the center of the fixing seat 4 is set as B. A is greater than B, and A:B is 5:4. In this embodiment, due to the difference between A and B, the first locking portion 14 can only be inserted into the first locking groove 41 with a farther distance, while the second locking portion 15 can only be inserted into the second locking groove 42 with a closer distance. This configuration ensures that each locking portion can only be correctly inserted into its corresponding slot during installation, preventing misinstallation or incorrect installation during the assembly process, and ensuring the correctness and reliability of each locking component during the assembly process.

[0048] The connecting bottle 2 and / or the puncture member 1 is provided with an identification structure 9. In this embodiment, the identification structure 9 is provided on both the fixing seat 4 of the connecting bottle 2 and the reinforcing plate of the puncture member 1. The identification structure 9 indicates that the first locking portion 14 rotates into the first locking groove 41 and the second locking portion 15 rotates into the second locking groove 42. The design of the identification structure 9 can guide the first locking portion 14 to be correctly inserted into the predetermined first locking groove 41 and the second locking portion 15 to be correctly inserted into the predetermined second locking groove 42 to ensure the accuracy and safety of the assembly. And this design can not only simplify the assembly operation, but also reduce the problems or damages that may be caused by assembly errors.

[0049] When assembling the puncturing mechanism, insert the puncturing needle 11 of the puncturing member 1 from the fixing base 4 into the connecting bottle 2, so that the protective base 12 of the puncturing member 1 abuts against the fixing base 4 of the connecting bottle 2. Then, perform the operation of rotating the puncturing member 1. According to the indication of the identification structure 9 provided on the fixing base 4 of the connecting bottle 2 and the reinforcing plate of the puncturing member 1, rotate the puncturing member 1 so that the identification structure 9 on the reinforcing plate of the puncturing member 1 rotates to a position corresponding to the identification structure 9 on the fixing base 4 of the connecting bottle 2. At this time, the first locking portion 14 on the protective base 12 will be positioned and locked into the first locking groove 41, and the second locking portion 15 will be positioned and locked into the second locking groove 42, ensuring that the puncturing member 1 is securely fixed on the connecting bottle 2 and will not move or loosen accidentally. When puncturing is required, put the connecting bottle 2 on the medicine bottle, so that the puncturing needle 11 penetrates into the medicine bottle. Then, connect the connector 13 to the syringe to extract or inject medicine from the medicine bottle.

[0050] During this process, the locking groove and the locking portion are designed in cooperation to ensure the firm fixation of the puncturing member 1 on the fixing base 4, prevent the displacement or accidental detachment of the puncturing member 1 that may occur during the operation, thereby reducing the operation risk and ensuring the safety and stability of the operation. The design and working principle of the puncturing member 1 are achieved by combining the protective base 12, the puncturing needle 11, the locking components and the connector 13. The coordinated action of these components ensures the safety, effectiveness and accuracy of the medicine during transportation, and also guarantees the safety of the operator and the patient.

[0051] Refer to Figure 5 , the connector 13 is provided with an opening and closing member 5. The opening and closing member 5 is arranged to be able to open or close the connector 13 under the action of an external force. In this embodiment, the opening and closing member 5 includes a cover body 51 and a cover plate 52. The cover body 51 is connected to the connector 13, and the cover plate 52 is rotatably connected to the cover body 51 and is used to close the cover body 51 and the connector 13. In this embodiment, the cover plate 52 is provided with a sealing portion 521. The sealing portion 521 is inserted into the connector 13 and is in interference fit with the inner wall of the connector 13 to achieve sealing. The opening and closing member 5 can control the opening and closing state of the connector 13. When the connector 13 is in the closed state, the opening and closing member 5 can effectively block the connector 13 to prevent the medicine from flowing out or being contaminated when not needed. The presence of the opening and closing member 5 not only enhances the safety of the connector 13, but also improves the operation convenience. The operator can control the flow of the medicine through a simple operation, and at the same time ensure that the connector 13 remains closed when not in use, reducing potential contamination or loss.

[0052] The connector 13 is threadedly connected to the opening and closing member 5. In this embodiment, the connector 13 is threadedly connected to the cover body 51 of the opening and closing member 5. The detachable threaded connection allows different sizes or types of opening and closing members 5 to be combined with the connector 13, thus increasing the flexibility of the device. The detachable design enables the opening and closing member 5 and the connector 13 to be disassembled and replaced relatively easily. Moreover, compared with other types of connections, the threaded connection is relatively simple and intuitive to operate. The threaded connection can provide a good sealing effect, preventing air or other contaminants from entering the puncturing mechanism and the medicine bottle, and at the same time preventing medicine leakage.

[0053] Referring to Figure 5 , the connecting bottle 2 is provided with a grasping recess 7. In this embodiment, two grasping recesses 7 are symmetrically arranged on the connecting bottle 2, and the grasping recess 7 is provided with an anti-slip pattern 8. The design of the grasping recess 7 enables the user to more easily hold and operate the connecting bottle 2. The addition of the anti-slip pattern 8 further increases the stability of grasping, not only improving the convenience of operation, but also enhancing the safety during operation, ensuring that the operator can firmly grasp and control the connecting bottle 2, and preventing accidental leakage or contamination of the medicine or sample.

[0054] The implementation principle of a puncturing mechanism in an embodiment of this application is as follows: The puncturing mechanism of this application, through the design of detachable connection between the locking member 3 and the puncturing member 1 and the connecting bottle 2, significantly improves the connection stability with the medicine bottle, while reducing the overall cost, and is applicable to various medicine processing scenarios that require safety, stability, and cost-effectiveness.

[0055] When assembling the puncturing mechanism, insert the puncturing needle 11 of the puncturing member 1 into the connecting bottle 2 from the fixing seat 4, so that the protective seat 12 of the puncturing member 1 abuts against the fixing seat 4 of the connecting bottle 2. Then, perform the operation of rotating the puncturing member 1. According to the indication of the marking structure 9 provided on the fixing seat 4 of the connecting bottle 2 and the reinforcing plate of the puncturing member 1, rotate the puncturing member 1 so that the marking structure 9 on the reinforcing plate of the puncturing member 1 rotates to a position corresponding to the marking structure 9 on the fixing seat 4 of the connecting bottle 2. At this time, the first locking portion 14 on the protective seat 12 will be positioned and locked into the first locking groove 41, and the second locking portion 15 will be positioned and locked into the second locking groove 42, ensuring that the puncturing member 1 is safely fixed on the connecting bottle 2 and will not move or loosen accidentally.

[0056] When puncture is required, the operator holds the holding recess 7 of the connecting bottle 2 and sets the connecting bottle 2 on the medicine bottle. At this time, the elastic arms 31 on the connecting bottle 2 are restricted by the outer wall of the medicine bottle. Due to their elasticity, the elastic arms 31 open outwards and tightly abut against the outer wall of the medicine bottle, so that the connecting bottle 2 is firmly fixed on the medicine bottle, preventing leakage or unstable operation that may be caused by loose connection; at the same time, the puncture needle 11 will penetrate into the medicine bottle through the medicine bottle, and then open the opening and closing member 5 closed on the joint 13, connect the syringe to the joint 13, extract or inject medicine from the medicine bottle, and complete the work;

[0057] In the above process, the application of the locking member 3 enables the connecting bottle 2 to closely fit on the outer wall of the medicine bottle, thereby improving the connection stability with the medicine bottle. This design can reduce the risk of leakage or operation failure that may be caused by loose or insecure connection; and the puncture member 1 and the connecting bottle 2 are designed to be detachably connected, enabling the connecting bottle 2 to be repeatedly applied to the use of different puncture members 1, reducing the maintenance cost of the equipment. Only the puncture member 1 needs to be replaced instead of the whole device, and at the same time, the frequency of consumable and equipment replacement is also reduced.

[0058] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A puncture mechanism, characterized in that: It includes a puncturing member (1) and a connecting bottle (2). The puncturing member (1) is detachably connected to the connecting bottle (2). The connecting bottle (2) is provided with a locking member (3). The connecting bottle (2) is used to be sleeved on a medicine bottle. The locking member (3) abuts against the outer wall of the medicine bottle. A part of the puncturing member (1) is located inside the connecting bottle (2) and inserted into the medicine bottle; The locking member (3) includes an elastic arm (31) provided on the connecting bottle (2). When the connecting bottle (2) is sleeved on the medicine bottle, the elastic arm (31) opens outward and tightly abuts against the outer wall of the medicine bottle; The connecting bottle (2) is provided with a fixing seat (4). The puncturing member (1) is inserted into the connecting bottle (2) from the fixing seat (4), and the puncturing member (1) abuts against the fixing seat (4). The fixing seat (4) is provided with a first locking groove (41) and a second locking groove (42). The puncturing member (1) is provided with a first locking portion (14) and a second locking portion (15). By rotating the puncturing member (1), the first locking portion (14) turns into and is fixed in the first locking groove (41), and the second locking portion (15) turns into and is fixed in the second locking groove (42).

2. The puncture mechanism according to claim 1, wherein: The distance from the first locking groove (41) to the center of the fixing seat (4) is set as A, and the distance from the second locking groove (42) to the center of the fixing seat (4) is set as B. The A is greater than the B, and A:B is 5:

4.

3. The puncture mechanism according to claim 1, wherein: The connecting bottle (2) and / or the puncturing member (1) is provided with a marking structure (9). The marking structure (9) indicates that the first locking portion (14) turns into the first locking groove (41) and the second locking portion (15) turns into the second locking groove (42).

4. The puncture mechanism according to claim 1, wherein: The puncturing member (1) includes a puncturing needle (11) and a protection seat (12). The first locking portion (14) and the second locking portion (15) are provided on the protection seat (12). The protection seat (12) abuts against the fixing seat (4). The puncturing needle (11) passes through the protection seat (12). The puncturing needle (11) is provided with a connector (13). The puncturing needle (11) is located inside the connecting bottle (2) and inserted into the medicine bottle. The connector (13) is used to connect a syringe.

5. The puncture mechanism according to claim 4, characterized in that: The connector (13) is provided with an opening and closing member (5). The opening and closing member (5) is arranged to be able to open or close the connector (13) under an external force.

6. The puncture mechanism according to claim 5, characterized in that: The connector (13) and the opening and closing member (5) are connected by threads.

7. The puncture mechanism according to claim 4, characterized in that: On one side of the protection seat (12) close to the connector (13), there is a strengthening portion (6). The strengthening portion (6) is connected to the puncturing needle (11) and the protection seat (12).

8. The puncture mechanism according to claim 1, characterized in that: The connecting bottle (2) is provided with a gripping recess (7). The gripping recess (7) is provided with anti-slip patterns (8).

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