A disposable liquid specimen collection adapter

Abstract

The utility model discloses a kind of disposable liquid specimen collection converters, liquid in negative pressure suction device is directly transferred into negative pressure specimen tube by hollow tube;The hollow tube upper end is communicated with the outlet pipe of the negative pressure suction device, and the lower end of the hollow tube is communicated with a needle;The upper portion of the hollow tube is provided with a joint, the size of the joint and the outlet pipe of the negative pressure suction device is matched, and both are sealingly connected.The utility model simplifies the operation process and the required material preparation of operator, shortens operation time, reduces the risk of specimen pollution.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and specifically to a disposable liquid specimen collection converter. Background Technology

[0002] In clinical practice, it is often necessary to collect various fluid samples for later testing. In layman's terms, the collection of fluid samples involves storing the fluids aspirated through tubes such as negative pressure drainage tubes in negative pressure specimen tubes.

[0003] However, in practice, when collecting fluid samples from negative pressure drainage tubes, chest drainage bags, gastrointestinal decompression containers, or deep vein catheters or indwelling needles, there are no suitable instruments for direct sample collection, making it impossible to directly collect the fluid drained from the drainage tube. The commonly used method is to first pour the drained fluid from the outlet tube of the negative pressure drainage device into a dressing bowl, then use a syringe to draw the fluid and inject it into the corresponding negative pressure specimen tube to complete the collection of the fluid sample.

[0004] The process of storing liquid samples requires additional syringes and dressing bowls, involves a lot of preparation of materials, and is complicated by the operation steps. Furthermore, the liquid samples are easily contaminated during the transfer of liquid samples. Utility Model Content

[0005] The purpose of this application is to solve the problems of cumbersome procedures and easy contamination in the liquid retention process in the prior art. Therefore, this utility model provides a disposable liquid specimen collection converter that directly transfers the liquid in the negative pressure suction device to the negative pressure specimen tube through a hollow tube.

[0006] The upper end of the hollow tube is connected to the outlet tube of the negative pressure suction device, and the lower end of the hollow tube is connected to a needle.

[0007] The hollow tube is provided with a base at its upper end, and a connector is detachably snapped onto the upper part of the base. The connector matches the outlet tube of the negative pressure suction device, and the two are sealed together.

[0008] When collecting fluid samples from negative pressure aspiration devices such as chest drainage bags, gastrointestinal decompression containers, deep vein catheters, or indwelling needles in clinical practice, the aforementioned collection converter first connects the collection converter and the negative pressure aspiration device through the upper end of a hollow tube. Then, the needle is inserted into the negative pressure specimen tube, allowing the fluid from the negative pressure aspiration device to be directly stored in the negative pressure specimen tube. This eliminates the need to first transfer the fluid to a dressing bowl and then draw it out and inject it into the negative pressure specimen tube through a needle. This simplifies the operator's procedures and the preparation of necessary materials, making the operation more convenient, shortening the operation time, and reducing the risk of specimen contamination.

[0009] In some embodiments, the outer periphery of the needle is provided with a rubber sleeve, so that when the needle is inserted into the negative pressure specimen tube, the needle can pierce the protective sleeve and then insert into the negative pressure specimen tube.

[0010] Using the above implementation scheme, the rubber sleeve can protect the needle and prevent it from being damaged or contaminated; it can also protect the operator and prevent the needle from pricking the finger during operation; finally, the rubber sleeve can also play a sealing role. The rubber sleeve is sealed at the lower end of the hollow tube, and the needle is placed inside the rubber sleeve, which is equivalent to sealing the needle and preventing liquid from flowing out of the needle before the needle punctures the rubber sleeve.

[0011] In some embodiments, the connector is a threaded connector that matches the thread of the outlet pipe of the negative pressure suction device, and the two are connected by a nut for sealing.

[0012] Some negative pressure suction devices have threads on their outlet pipes. In the above-described implementation scheme, the nut is located on the threaded connector. After the threaded connector is aligned with the opening of the outlet pipe, the nut can be rotated to connect the threaded connector and the outlet pipe, thus achieving a quick connection between the outlet pipe and the threaded connector.

[0013] In some embodiments, the connector is a rubber tube, the size of which matches the outlet tube of the negative pressure suction device, and the rubber tube can be sealed and fitted onto the outlet tube.

[0014] For extraction devices such as gastrointestinal decompression devices that do not have threads at their outlets, the above-described implementation scheme uses a rubber sleeve to quickly connect the two by placing the rubber sleeve over the outlet pipe of the extraction device.

[0015] In some embodiments, a rubber ring is provided over the rubber tube. After the upper side of the rubber tube is fitted onto the outlet tube, the rubber ring slides to the upper side of the rubber tube, squeezing and tightening the connection between the rubber tube and the outlet tube.

[0016] By adopting the above implementation scheme, when the rubber tube is sleeved on the outlet pipe of the negative pressure suction device, it can be tightened on the outside by the rubber ring, so that the two can be connected more tightly and prevent them from falling off.

[0017] In some embodiments, the connector is a nut that matches the outlet pipe, allowing for direct connection between the connector and the outlet pipe.

[0018] In some embodiments, a handle is provided in the middle of the hollow tube, and a vertical anti-slip strip is provided on the outer side of the handle.

[0019] The above implementation scheme allows for easy hand-held rotation, and facilitates threaded connection and needle punching between the connector and the outlet pipe.

[0020] In some embodiments, the needle is 4-5 cm long and has a 45° angled needle hole at the tail end.

[0021] In some embodiments, sterile protective sleeves are provided at both the upper and lower ends of the hollow tube.

[0022] By adopting the above implementation scheme, a sterile state is ensured before the operation.

[0023] In some embodiments, the hollow tube gradually decreases in size from top to bottom.

[0024] The above-mentioned technical solution is used to obtain a stable converter structure that is easy to hold and operate.

[0025] In some implementations, this liquid specimen acquisition converter is for single use only.

[0026] This application utilizes a liquid specimen collection converter to directly transfer liquid aspirated from a negative pressure aspiration device into a negative pressure specimen tube. This avoids waste of related materials, improves work efficiency, and is convenient and quick; it reduces the probability of contamination during specimen collection, making the collected specimen values ​​more accurate; it also reduces occupational exposure risks in terms of nursing quality and increases patient acceptance of the procedure.

[0027] On the other hand, this application can prevent liquid specimens from being exposed to air. During the process of introducing liquid into the negative pressure specimen tube through the needle, the protective sleeve is always wrapped around the needle. After the needle pierces into the negative pressure specimen tube, the protective sleeve is squeezed and deformed, but it is always wrapped around the needle that has not entered the negative pressure specimen tube, preventing the liquid specimen from being contaminated through the needle after the needle is contaminated, so that the liquid specimen is always in a safe environment. Attached Figure Description

[0028] The present invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not drawn to scale; their purpose is to illustrate the gist of the invention.

[0029] Figure 1 This is a schematic diagram of a liquid specimen collection converter with a sterile protective sleeve in an embodiment of this utility model;

[0030] Figure 2 This is a schematic diagram of the liquid sample collection converter in Embodiment 1 of this utility model;

[0031] Figure 3 This is a schematic diagram of the liquid specimen collection converter with the protective cover removed in Embodiment 1 of this utility model;

[0032] Figure 4This is a schematic diagram showing the connection between the liquid sample collection converter and the outlet tube in Embodiment 1 of this utility model;

[0033] Figure 5 This is a schematic diagram of the liquid sample collection converter in Embodiment 1 of this utility model during liquid sample collection;

[0034] Figure 6 This is a schematic diagram of the liquid sample collection converter in Embodiment 2 of this utility model.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Hollow tube; 11. Anti-slip strip; 12. Base; 2. Sterile protective sleeve; 3. Connector; 31. Threaded connector; 311. Nut; 32. Rubber tube; 321. Rubber ring; 4. Needle; 41. Protective sleeve; 5. Outlet tube; 6. Negative pressure specimen tube. Detailed Implementation

[0037] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0038] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0040] Example 1

[0041] Please see Figure 1-5This embodiment provides a disposable liquid specimen collection converter, which directly transfers the liquid in the negative pressure aspiration device to the negative pressure specimen tube 6 through the hollow tube 1; the upper end of the hollow tube 1 is sealed to the outlet tube 5 of the negative pressure aspiration device, and the lower end of the hollow tube 1 is connected to the needle 4; a base 12 is provided on the upper part of the hollow tube 1, and a connector 3 is detachably snapped onto the base 12. The connector 3 matches the outlet tube 5 of the negative pressure aspiration device, and the two are sealed together.

[0042] It should be noted in advance that current technology lacks a specimen storage device that can be directly connected to the negative pressure aspiration device, and the negative pressure aspiration device cannot store liquid specimens for extended periods. Therefore, current technology often involves first pouring the liquid from the negative pressure aspiration device into a temporary container, then using a syringe to draw the liquid and inject it into the negative pressure specimen tube 6. The temporary container is usually a dressing bowl, which is directly exposed to the air, greatly increasing the risk of liquid contamination. Furthermore, the transfer of liquid specimens through the temporary container and syringe carries a high risk of contamination, is complex, and involves the use of numerous medical instruments, resulting in waste.

[0043] The negative pressure specimen tube 6 is a closed, vacuum-sealed tubular container, with its upper end sealed with rubber, thus preventing direct injection of liquid into it. The liquid specimen collection converter of this application has a needle 4 at its lower end, which can be inserted into the negative pressure specimen tube 6 to guide liquid into it. Because the negative pressure specimen tube 6 is a vacuum tube, it possesses suction to draw out liquid, and during operation, the negative pressure extraction device can be lifted to pour the liquid into the negative pressure specimen tube 6, thus eliminating the problem of liquid transfer issues.

[0044] A base 12 is provided at the upper end of the hollow tube, and different connectors 3 can be snapped onto the base 12. Since the fluid outlets of different negative pressure suction devices, chest drainage bags, gastrointestinal decompression containers, central venous catheters, or indwelling needles are different, some have threads, and their sizes also vary, the device of this application can replace different connectors 3 according to different needs. Generally speaking, a department will often choose the same model of such medical instruments, so from a practical point of view, the required types of connectors will not be too many, and only the corresponding model needs to be selected during surgery.

[0045] Specifically, a protective sleeve 41 is provided around the outer periphery of the needle 4. The protective sleeve 41 is hollow inside, with its lower end closed and its upper end sealed and fixed to the bottom of the vacuum tube 1. The needle 4 is completely located inside the protective sleeve 41. During operation, the needle 4 first pierces the protective sleeve 41 and then inserts into the negative pressure specimen tube 6. The protective sleeve 41 can always protect the needle from contamination. Preferably, the protective sleeve 41 is made of rubber.

[0046] Specifically, a handle is provided in the middle of the hollow tube 1, and a vertical anti-slip strip 11 is provided on the outside of the handle.

[0047] Specifically, the needle is 4cm-5cm long and has a 45° angled needle hole at the tail end.

[0048] Specifically, sterile protective sleeves 2 are provided at both the upper and lower ends of the hollow tube 1. In this embodiment, the lower sterile protective sleeve 2 is fitted over the protective sleeve 41, and the upper sterile protective sleeve 2 is fitted over the threaded joint.

[0049] Specifically, the outer diameter of hollow tube 1 gradually decreases from top to bottom.

[0050] Specifically, the entire liquid specimen collection converter is a disposable device, and the connector 3 of the liquid specimen collection converter is selected according to the shape of the outlet tube 5 of the negative pressure suction device commonly used in this hospital or operating room.

[0051] Specifically, the materials used in liquid specimen collection converters must meet medical biocompatibility standards (such as medical-grade polypropylene (PP), polycarbonate (PC), polystyrene (PS), silicone, and other usable medical plastic materials) to avoid reactions with the transmission medium. All connectors undergo rigorous sterilization treatment (such as high-pressure steam, ethylene oxide, gamma rays, etc.) to ensure no bacterial, viral, or particulate contamination.

[0052] In some implementations, connector 3 is a threaded connector 31, which matches the thread of the outlet pipe 5 of the negative pressure suction device and is sealed by a nut 311.

[0053] Specifically, a sealing rubber ring is provided inside the nut 311 to ensure a seal between the connector 31 and the outlet pipe 5.

[0054] Example 2

[0055] See Figure 6 In some implementations, connector 3 is a rubber tube 32, which is connected to the hollow tube and is tubular. Its size is slightly larger than that of the outlet pipe 5 of the negative pressure suction device. The rubber tube 32 is sealed and fitted onto the outlet pipe 5. A rubber ring 321 is fitted over the rubber tube 32. After the upper side of the rubber tube 32 is fitted onto the outlet pipe 5 of the negative pressure suction device, the rubber ring 321 is slid onto the upper side of the rubber ring 321, squeezing and tightening the rubber tube 32 and the outlet pipe 5 to make the connection between the two more stable and achieve a seal.

[0056] Example 3

[0057] Connector 3 is a nut that matches the outlet pipe 5, and the outlet pipe 5 can be directly connected through connector 3.

[0058] Specifically, the size of the nut at the joint matches the size of the outlet pipe 5, the internal thread of the nut matches the external thread of the outlet pipe 5, and the joint 3 and the outlet pipe 5 are connected by a threaded seal.

[0059] In use, remove the sterile protective sleeves 2 from the upper and lower ends of the hollow tube. First, seal the upper part of this device and the outlet tube 5 of the negative pressure aspiration device. Then, pierce the rubber sealing layer of the negative pressure specimen tube 6 with the needle 4 at the lower end of this device. Since the inside of the negative pressure specimen tube 6 is a vacuum, the liquid flows into the negative pressure specimen tube 6 under the vacuum suction, thus completing the collection of the liquid specimen. Specifically, a protective sleeve 41 is provided on the outer periphery of the needle 4. During operation, align the lower end of the protective sleeve 41 with the rubber sealing layer at the top of the negative pressure specimen tube 6 and forcefully insert the needle. The needle will pierce the protective sleeve 41 first and then enter the negative pressure specimen tube 6. The protective sleeve 41 will remain outside the negative pressure specimen tube 6, but the protective sleeve 41 will always wrap around the needle that has not entered the negative pressure specimen tube 6, ensuring that the needle 4 is not contaminated.

[0060] Those skilled in the art should understand that variations can be implemented by combining existing technology with the above embodiments, which will not be elaborated here. Such variations do not affect the substantive content of this utility model, and will not be elaborated here.

[0061] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above. Devices and structures not described in detail herein should be understood as being implemented in a conventional manner within the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of this utility model using the disclosed methods and techniques, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. This does not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, still fall within the protection scope of the technical solution of this utility model.

Claims

1. A disposable liquid specimen collection converter, characterized in that, The liquid in the negative pressure suction device is directly transferred to the negative pressure specimen tube (6) through the hollow tube (1); The upper end of the hollow tube (1) is connected to the outlet tube (5) of the negative pressure suction device, and the lower end is connected to a needle (4). The hollow tube (1) is provided with a base (12) at the upper end, and a connector (3) is detachably snapped onto the upper part of the base. The connector (3) matches the outlet tube (5) of the negative pressure suction device, and the two are sealed together.

2. The disposable liquid specimen collection converter according to claim 1, characterized in that, The needle (4) is sealed with a protective sleeve (41) on its outer periphery. When the needle is inserted into the negative pressure specimen tube (6), the needle (4) pierces the protective sleeve (41) and then pierces into the negative pressure specimen tube (6).

3. The disposable liquid specimen collection converter according to claim 1, characterized in that, The connector (3) is a threaded connector (31), which matches the thread on the outlet pipe (5) of the negative pressure suction device, and the two are sealed together by a nut (311).

4. The disposable liquid specimen collection converter according to claim 1, characterized in that, The connector (3) is nut-shaped, and the size of the nut matches the thread of the outlet pipe (5) of the negative pressure suction device.

5. A disposable liquid specimen collection converter according to claim 1, characterized in that, The connector (3) is a rubber tube (32), the size of which matches that of the outlet pipe (5), and the rubber tube (32) is sealed on the outlet pipe (5).

6. A disposable liquid specimen collection converter according to claim 5, characterized in that, The rubber tube (32) is fitted with a rubber ring (321). After the upper side of the rubber tube (32) is fitted onto the outlet pipe (5) of the negative pressure suction device, the rubber ring (321) slides to the upper side of the rubber ring (321) and squeezes to tighten the connection between the rubber ring (321) and the outlet pipe (5).

7. A disposable liquid specimen collection converter according to claim 1, characterized in that, The hollow tube (1) has a handhold in the middle, and the handhold has a vertical anti-slip strip (11) on the outside.

8. A disposable liquid specimen collection converter according to claim 1, characterized in that, The needle (4) is 4cm-5cm long and has a 45° angled needle hole at the tail end.

9. A disposable liquid specimen collection converter according to claim 1, characterized in that, The hollow tube (1) is provided with sterile protective sleeves (2) at both the upper and lower ends.

10. A disposable liquid specimen collection converter according to claim 1, characterized in that, The outer diameter of the hollow tube (1) gradually decreases from top to bottom.

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