Penicillin bottle piercer

Abstract

The utility model discloses a kind of penicillin bottle puncture apparatus, it is related to medical instrument technical field, specifically, including: main part, its inside is provided with two groups of cavities, the end of main part is provided with the first puncture sealing pad for sealing two groups of the cavity simultaneously;First puncture needle, it is fixedly connected with the main part, and inside is provided with two groups of through and mutually independent passageway, the passageway is used to with the cavity one-to-one correspondence intercommunication;The present penicillin bottle puncture apparatus, two groups of passageways in puncture needle are sealed simultaneously using first puncture sealing pad, realize the automatic sealing of gas passageway using the characteristics of sealing pad self-healing, and increase lower buckle in connecting portion, guarantee the connection stability between connecting portion and penicillin bottle, to avoid the leakage or volatilization caused by penicillin bottle puncture apparatus drop further.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and more specifically, to a vial puncture device. Background Technology

[0002] Dangerous drugs are those that can cause occupational exposure hazards or harms, namely drugs that are genotoxic, carcinogenic, teratogenic, or have impaired fertility, or that can produce serious organ or other toxic effects at low doses. They usually refer to anti-tumor drugs.

[0003] In the intravenous compounding center (dispensing department), the use of ordinary syringes to prepare dangerous drugs can lead to drug splashing or leakage. During the process, anti-tumor drugs can enter the bodies of medical staff through the skin, digestive tract, and respiratory tract.

[0004] Therefore, in order to address the risk of exposure to hazardous drugs, it is necessary to use devices with closed-loop functions for drug preparation and injection, so as to better protect medical staff from the health threats posed by hazardous drug leaks.

[0005] In existing technologies, the puncture device for vials has two sets of channels inside: a gas channel and a liquid channel. The gas channel is sealed by a water-resistant and breathable membrane. This means that when the puncture device is inserted into the vial, the gas channel is open, allowing gas exchange between the inside and outside of the vial. This poses a risk of drug evaporation or leakage. Therefore, an additional sealing plug is needed for secondary sealing. When preparing or drawing the drug, the sealing plug needs to be manually removed, which is cumbersome. Furthermore, if the sealing plug is forgotten, there is a risk of drug evaporation or leakage.

[0006] In summary, how to solve the problems of cumbersome operation and drug evaporation or leakage of existing vial puncture devices is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0007] In view of this, the purpose of this utility model is to provide a vial puncture device that uses a first puncture sealing pad to seal two sets of channels inside the puncture needle at the same time. By utilizing the self-healing property of the sealing pad, the gas channel is automatically sealed. In addition, a lower buckle is added to the connecting part to ensure the connection stability between the connecting part and the vial, thereby avoiding leakage or evaporation of the medicine caused by the vial puncture device falling off.

[0008] Another objective of this invention is to provide a vial puncture device as described above.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A vial puncture device, comprising:

[0011] The main body has two sets of cavities inside, and the end of the main body is provided with a first puncture sealing gasket for simultaneously sealing the two sets of cavities.

[0012] The first puncture needle is fixedly connected to the main body and has two sets of through and independent channels inside, which are used to communicate with the cavity one by one.

[0013] The connecting part is a sleeve structure, coaxially arranged with the first puncture needle, and one end is fixedly connected to the main body. The other end of the connecting part extends along its own center line and is provided with several sets of wings arranged in a ring array. The ends of the wings expand outward, and the inner wall of the wings is provided with a lower buckle for engaging the bottom end of the vial cap.

[0014] Preferably, the connecting part is provided with a plurality of upper buckles for engaging the upper edge of the vial cap at one end near the main body, and the plurality of upper buckles are arranged in a circular array about the center line of the connecting part.

[0015] Preferably, the lower buckle is a wedge-shaped block, with the side of the lower buckle away from the main body being a wedge-shaped surface and the other side being a flat surface.

[0016] Preferably, the opening heights of the two sets of channels inside the first puncture needle are different.

[0017] Preferably, the end of the main body is provided with a mounting hole, which simultaneously connects to two sets of cavities inside the main body. The first puncture sealing gasket is interference-fitted into the mounting hole, and the inner diameter of the opening end of the mounting hole is smaller than the inner diameter of the mounting position of the first puncture sealing gasket.

[0018] Preferably, the two sets of cavities within the main body are cylindrical cavities, and the center lines of the two sets of cavities are parallel to the center line of the mounting hole.

[0019] Preferably, the exterior of the main body is provided with a limiting groove and / or a limiting buckle for connecting the adapter.

[0020] Preferably, there are two sets of limiting grooves and two sets of limiting buckles, and the limiting grooves and limiting buckles are evenly spaced.

[0021] The vial puncture device provided by this utility model has at least the following advantages compared with the prior art:

[0022] 1. By setting two independent channels in the first puncture needle, serving as a liquid channel and a gas channel respectively, the gas channel is used to balance the pressure difference inside and outside the vial, facilitating the smooth discharge of the liquid inside the vial. In addition, a first puncture sealing pad is added to the main body to seal the cavities corresponding to the gas channel and the liquid channel. That is, when the adapter is detached from the puncture device, both the liquid channel and the gas channel can quickly complete the sealing with the help of the self-healing properties of the first puncture sealing pad, so that the liquid inside the vial is completely isolated, thereby preventing the liquid from evaporating or leaking.

[0023] 2. Add wings to the connecting part. The ends of the wings are flared outward to facilitate fitting the connecting part onto the outside of the vial cap. A buckle is set on the inner wall of the wing to engage with the bottom edge of the vial cap, thereby effectively preventing the vial from detaching from the connecting part. This ensures a stable connection between the puncture device and the vial and avoids leakage or evaporation of the medication caused by the puncture device falling off. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the specific vial puncture device provided by this utility model;

[0026] Figure 2 This is a front view of the specific vial puncture device provided by this utility model;

[0027] Figure 3 This is a cross-sectional view of the specific vial puncture device provided by this utility model;

[0028] Figure 4 This is a schematic diagram illustrating the assembly of the vial puncture device and adapter provided by this utility model.

[0029] Figure 5 A cross-sectional view of the specific adapter provided by this utility model;

[0030] Figure 6 This is an exploded view of the components of the vial puncture device and adapter provided by this utility model.

[0031] Figures 1-6 middle:

[0032] 1. Puncture device; 11. Connecting part; 111. Wing; 112. Lower buckle; 113. Upper buckle; 114. First puncture needle; 12. Main body; 121. First puncture sealing pad; 122. Limiting groove; 123. Limiting buckle;

[0033] 2. Adapter; 21. Sealing gasket pressure ring; 22. Second puncture sealing gasket; 23. Sealing gasket support seat; 24. Ball; 25. Outer guide sleeve; 26. Second puncture needle; 27. Water-resistant membrane upper base; 28. Water-resistant and breathable membrane; 29. ​​Water-resistant membrane lower base. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] The core of this utility model is to provide a vial puncture device, which uses a first puncture sealing pad to seal two sets of channels inside the puncture needle at the same time. By utilizing the self-healing property of the sealing pad, the gas channel is automatically sealed. In addition, a lower buckle is added in the connecting part to ensure the connection stability between the connecting part and the vial, thereby avoiding leakage or evaporation of the medicine caused by the vial puncture device falling off.

[0036] Please refer to Figures 1-6 A vial puncture device, comprising:

[0037] The main body 12 has two sets of cavities inside, and the end of the main body 12 is provided with a first puncture sealing gasket 121 for simultaneously sealing the two sets of cavities.

[0038] The first puncture needle 114 is fixedly connected to the main body 12 and has two sets of through and independent channels inside, which are used to communicate with the cavity one by one.

[0039] The connecting part 11 is a sleeve structure, coaxially arranged with the first puncture needle 114, and one end is fixedly connected to the main body 12. The other end of the connecting part 11 extends along its own center line and is provided with a number of wings 111 arranged in a ring array. The ends of the wings 111 expand outward, and the inner wall of the wings 111 is provided with a lower buckle 112 for engaging the bottom end of the vial cap.

[0040] like Figures 1-3 As shown, the connecting part 11 and the main body 12 together constitute the puncture device 1, wherein the connecting part 11 and the main body 12 are preferably integrally injection molded;

[0041] The main body 12 and the first puncture needle 114 are equipped with two sets of cavities and two sets of channels, which are connected one-to-one and used as liquid channels and gas channels, respectively. The main body 12 is equipped with a first puncture sealing pad 121 to seal the liquid channel and the gas channel at the same time. When connected to the adapter 2, the two sets of second puncture needles 26 in the adapter 2 puncture the first puncture sealing pad 121 at the same time, and then connect to the liquid channel and the gas channel respectively to carry out liquid exchange and gas exchange. When the adapter 2 is separated from the puncturist 1, the two sets of second puncture needles 26 detach from the first puncture sealing pad 121 at the same time. With the help of the self-healing property of the first puncture sealing pad 121, the liquid channel and the gas channel are quickly self-sealed, that is, the exchange channel between the liquid in the vial and the outside is isolated, so that the liquid and gas inside and outside the vial cannot be exchanged, thereby avoiding leakage and evaporation of the medicine.

[0042] Meanwhile, the end of the connecting part 11 is provided with several sets of wings 111. The cross-sectional area of ​​the outer side of the wing 111 is larger than the cross-sectional area inside the connecting part 11, which facilitates guiding the vial cap into the connecting part 11. The inner wall of the wing 111 is fixedly provided with a lower buckle 112. When the vial cap reaches the set position, the lower buckle 112 can engage the edge of the lower end face of the cap, preventing the vial cap from detaching from the connecting part 11. This ensures the stable connection between the puncture device 1 and the vial, thereby avoiding the leakage and evaporation of the medicine caused by the first puncture needle 114 falling off from the vial.

[0043] In some embodiments, the end of the connecting portion 11 near the main body portion 12 is provided with a plurality of upper buckles 113 for engaging the upper edge of the vial cap, and the plurality of upper buckles 113 are arranged in a ring array about the center line of the connecting portion 11.

[0044] like Figure 1 and Figure 3 As shown, a buckle 113 is provided at the root of the inner wall of the connecting part 11 to engage the edge of the top of the vial cap, so that the top of the vial is fixed in the center. Combined with the action of the lower buckle 112, the vial cap is firmly fixed in the connecting part 11, thereby avoiding the increase of the gap between the first puncture needle 114 and the vial cap due to the relative shaking between the vial cap and the puncture device 1 during operation. This prevents the liquid inside the vial from leaking along the outer wall of the first puncture needle 114, and further ensures the sealing stability of the puncture device 1 during operation.

[0045] In some embodiments, the lower latch 112 is a wedge-shaped block, with the side of the lower latch 112 away from the main body 12 being a wedge-shaped surface and the other side being a flat surface;

[0046] like Figure 1As shown, the wing 111 is fixedly connected to the connecting part 11 only at its root. When the vial cap enters the connecting part 11, the upper edge of the cap first contacts the wedge-shaped surface of the lower latch 112, forcing the wing 111 to bend outward. After the cap has completely passed the position of the lower latch 112, the wing 111 returns to its original position, and one side of its flat surface abuts against the lower end of the cap, thereby restricting the cap from detaching and making the puncture device 1 firmly connected to the vial.

[0047] In some embodiments, the opening heights of the two sets of channels within the first puncture needle 114 are unequal;

[0048] like Figure 3 As shown, the first puncture needle 114 has two end faces with different heights, which serve as the opening ends of the liquid channel and the gas channel, respectively. Preferably, the end face away from the main body 12 is the opening end of the gas channel, and the other is the opening end of the liquid channel. When the drug solution is drawn, the mouth of the vial is often facing downwards. Therefore, the opening end of the gas channel is higher than the opening end of the liquid channel. When the external gas enters, it floats directly upwards without passing through the opening end of the liquid channel, thus avoiding the gas from entering the liquid channel.

[0049] In some embodiments, a mounting hole is provided at the end of the main body 12, which simultaneously connects two sets of cavities inside the main body 12. The first puncture sealing gasket 121 is installed in the mounting hole with an interference fit. The inner diameter of the opening end of the mounting hole is smaller than the inner diameter of the mounting position of the first puncture sealing gasket 121.

[0050] like Figure 3 As shown, a mounting hole is provided in the main body 12 to connect two cavities simultaneously, and the first puncture sealing gasket 121 is installed by an interference fit, so that the first puncture sealing gasket 121 seals two cavities at the same time, reducing assembly steps and ensuring the sealing performance of the two inner cavities. At the same time, the mounting hole adopts a narrowing process to restrict the axial movement of the first puncture sealing gasket 121, thereby ensuring that the first puncture sealing gasket 121 can maintain a stable position.

[0051] In some embodiments, the two sets of cavities within the main body 12 are cylindrical cavities, and the center lines of both sets of cavities are parallel to the center line of the mounting hole.

[0052] like Figure 3 and Figure 5 As shown, the adapter 2 is provided with two sets of second puncture needles 26, which are used to puncture the first puncture sealing gasket 121 and then connect to the gas channel and the liquid channel respectively. The two sets of inner cavities in the main body 12 are set as cylindrical to facilitate the accommodation of the second puncture needles 26 after puncture. Moreover, the center line of the cavity is parallel to the center line of the mounting hole and is consistent with the puncture direction of the second puncture needle 26, which can reduce puncture resistance and ensure smooth puncture.

[0053] In some embodiments, the exterior of the main body 12 is provided with a limiting groove 122 and / or a limiting buckle 123 for connecting the adapter 2;

[0054] like Figures 4-6 As shown, the adapter 2 includes a sealing gasket support 23, an outer guide sleeve 25, an upper base 27 of the water-blocking membrane, and a lower base 29 of the water-blocking membrane. The sealing gasket support 23 is fixedly provided with a second puncture sealing gasket 22 by a sealing gasket pressure ring 21, and the sealing gasket support 23 is coaxially slidably installed in the outer guide sleeve 25. The upper base 27 of the water-blocking membrane is fixedly fitted on the end of the outer guide sleeve 25 and is provided with two sets of channels inside. Two sets of second puncture needles 26 are fixed and connected to the two sets of channels respectively. One set of channels is directly connected to the liquid interface of the lower base 29 of the water-blocking membrane, and the other set of channels is connected to the gas interface of the lower base 29 of the water-blocking membrane through a water-blocking and breathable membrane 28. The water-blocking and breathable membrane 28 is fixedly arranged between the upper base 27 of the water-blocking membrane and the lower base 29 of the water-blocking membrane.

[0055] Furthermore, a quick-connect mechanism is provided between the adapter 2 and the puncture device 1. The quick-connect mechanism includes a ball bearing mounting hole on the side wall of the sealing gasket support 23, a ball bearing 24 that is fitted into the ball bearing mounting hole, a ball bearing groove on the outer guide sleeve 25, and a slider on the outer guide sleeve 25. The slider is fixed to the side wall of the outer guide sleeve 25 in the form of a cantilever beam and is slidably installed with the axial groove on the outer wall of the sealing gasket support 23 to prevent the sealing gasket support 23 from rotating relative to the outer guide sleeve 25. At the same time, a limiting step is provided on the side of the axial groove on the outer wall of the sealing gasket support 23 near the end, which can abut against the end of the slider to restrict the sealing gasket support 23 from entering the outer guide sleeve 25 axially.

[0056] When the adapter 2 is combined with the puncture device 1, the sealing pad support 23 approaches the main body 12. At this time, the ball 24 is simultaneously engaged in the ball mounting hole and the limiting groove 122 under the action of the ball sliding groove, which locks the axial movement of the sealing pad support 23 and the main body 12, thus completing the quick locking connection between the adapter 2 and the puncture device 1.

[0057] During this process, when the limiting buckle 123 contacts the end of the slider, the wedge-shaped surface of the outer wall of the limiting buckle 123 abuts against the inner wall of the end of the slider, causing the end of the slider to expand outward and disengage from the step of the axial groove of the sealing gasket support 23, thereby releasing the restriction of the slider on the axial movement of the sealing gasket support 23, allowing the sealing gasket support 23 to move axially and enter the interior of the outer guide sleeve 25.

[0058] During this process, the sealing gasket support 23 retracts inward relative to the outer guide sleeve 25. During this process, the second puncture needle 26 punctures the second puncture sealing gasket abutting 22, and then punctures the first puncture sealing gasket 121 again, connecting with the corresponding liquid channel or gas channel.

[0059] When the adapter 2 separates from the puncture device 1, the outer guide sleeve 25 is pulled axially. At this time, the ball 24 is still in the locked state. Therefore, when the outer guide sleeve 25 is pulled, the sealing gasket support 23 slides outward relative to the outer guide sleeve 25, so that the second puncture needle 26 successively disengages from the first puncture sealing gasket 121 and partially disengages from the second puncture sealing gasket 22, thereby sealing the liquid channel and the gas channel. Since the end of the second puncture needle 26 is still inside the second puncture sealing gasket 22, the channel inside the second puncture needle 26 is also sealed. During the disengagement process, when the outer guide sleeve 25 moves to a wide position in the ball ball groove, the ball 24 retracts and disengages from the limiting groove 122, thereby unlocking the sealing gasket support 23 from the main body 12, and thus completely separating the adapter 2 from the puncture device 1.

[0060] In some embodiments, there are two sets of limiting grooves 122 and two sets of limiting buckles 123, and the limiting grooves 122 and the limiting buckles 123 are evenly spaced.

[0061] The spaced arrangement of two sets of limiting grooves 122 and two sets of limiting buckles 123 ensures that the puncture device 1 and the adapter 2 have a foolproof effect when connected. If the angle is not right when the two are inserted, they cannot be inserted. Thus, when the two are inserted, the second puncture needle 26 can overlap with the cavity axis inside the main body 12, thereby avoiding interference.

[0062] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0063] The vial puncture device provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A vial puncture device, characterized in that, include: The main body (12) has two sets of cavities inside, and the end of the main body (12) is provided with a first puncture sealing gasket (121) for simultaneously sealing the two sets of cavities. The first puncture needle (114) is fixedly connected to the main body (12) and has two sets of through and independent channels inside, which are used to communicate with the cavity one by one; The connecting part (11) is a sleeve structure, coaxially arranged with the first puncture needle (114), and one end is fixedly connected to the main body (12). The other end of the connecting part (11) extends along its own center line and is provided with a number of wings (111) arranged in a ring array. The ends of the wings (111) expand outward, and the inner wall of the wings (111) is provided with a lower buckle (112) for locking the bottom end of the vial cap.

2. The vial puncture device according to claim 1, characterized in that, The connecting part (11) near the main body (12) is provided with a number of upper buckles (113) for engaging the upper edge of the vial cap. The number of upper buckles (113) are arranged in a ring array about the center line of the connecting part (11).

3. The vial puncture device according to claim 1, characterized in that, The lower buckle (112) is a wedge-shaped block. The side of the lower buckle (112) away from the main body (12) is a wedge-shaped surface, and the other side is a flat surface.

4. The vial puncture device according to claim 1, characterized in that, The opening heights of the two sets of channels inside the first puncture needle (114) are not equal.

5. The vial puncture device according to claim 1, characterized in that, The end of the main body (12) is provided with an installation hole, which simultaneously connects to the two sets of cavities inside the main body (12). The first puncture sealing gasket (121) is installed in the installation hole with an interference fit. The inner diameter of the opening end of the installation hole is smaller than the inner diameter of the installation position of the first puncture sealing gasket (121).

6. The vial puncture device according to claim 5, characterized in that, The two sets of cavities within the main body (12) are cylindrical cavities, and the center lines of the two sets of cavities are parallel to the center line of the mounting hole.

7. The vial puncture device according to any one of claims 1-6, characterized in that, The main body (12) is provided with a limiting groove (122) and / or a limiting buckle (123) for connecting the adapter (2).

8. The vial puncture device according to claim 7, characterized in that, There are two sets of the limiting groove (122) and the limiting buckle (123), and the limiting groove (122) and the limiting buckle (123) are evenly spaced.

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