A disposable catheter tip culture pack

By designing a disposable catheter tip culture pack, which includes a detachable cutting component and a self-sealing storage component, the contamination problem caused by the inability to separate the blade in existing devices is solved. This achieves efficient cutting and sterile storage of catheter tips, reducing the risk of contamination.

CN224428295UActive Publication Date: 2026-06-30NANJING DRUM TOWER HOSPITAL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING DRUM TOWER HOSPITAL
Filing Date
2025-07-31
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The existing device's shearing blade and sterile box are not separated during transport, making it impossible to completely seal and easily leading to contamination of the catheter tip. Furthermore, its non-disposable nature can cause cross-contamination.

Method used

A disposable catheter tip culture kit was designed, comprising a detachable cutting component and a storage component. The cutting component contains two sliding cutting blades, which, together with the storage component, enable efficient cutting and storage of the catheter tip. The storage component is self-sealing to avoid contamination and cross-contamination.

Benefits of technology

It achieves efficient cutting and storage of catheter tips, avoids liquid splashing, ensures the sterility of subsequent culture processes, reduces the risk of contamination, is suitable for single use, and avoids cross-contamination caused by reuse.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a disposable catheter tip culture pack, including a cutting component, a storage component, and other matching disposable items stored in the same culture pack. The lower part of the cutting component is detachably connected to a storage component. There is a cutting blade on each side of the inside of the cutting component, with the blades of the two cutting blades facing each other and both cutting blades being slidable. The storage component can self-seal. Advantages: The cutting component can cut the catheter tip, and the storage component can directly receive the catheter tip that falls off after cutting. The two work together to store the catheter tip, which is convenient for subsequent transportation. The storage component and the cutting component are detachably connected and can self-seal to prevent the catheter tip from being lost during transportation.
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Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, specifically to a disposable catheter tip culture pack. Background Technology

[0002] After use, medical catheters need to have their tips cut off and placed in a sterile container for subsequent bacterial culture. Current methods involve manually cutting the catheter tip with a blade and placing it in the sterile container. This is not only prone to errors and injuries to the operator, but also carries the risk of the catheter tip falling off or becoming contaminated during the cutting process.

[0003] Chinese Patent Publication No. CN209872924U discloses a sterile box for culturing catheter tips with a blade, comprising a top cover and a matching box body. The top cover has a slit with a diameter sufficient to accommodate the entire catheter tip. A slot is provided on the side wall of the slit, and a removable small cover is installed on the slit. A movable groove is provided on the side wall of the top cover, and a first pinch head and a second pinch head are installed inside the movable groove. A blade that extends into the top cover is connected to one end of each of the first and second pinch heads. This device aims to improve the success rate of catheter tip culturing, reduce false positives caused by secondary contamination, and improve occupational protection for nurses. However, the above device has the following drawbacks in use:

[0004] The housing of this device has a movable groove to facilitate the operation of the blade. However, due to the presence of the blade, the movable groove cannot be closed, so the conduit head inside the housing cannot be completely isolated, which can easily cause contamination.

[0005] The box and the blade cannot be separated. During transportation, the tube tip is likely to come into contact with the blade again, which can affect the tube tip and thus affect the subsequent culture process. In addition, the device is not disposable and repeated use after disinfection can easily cause cross-contamination. Utility Model Content

[0006] The technical problem this invention aims to solve is that in existing devices, the shearing blade and the sterile box are not separated during transport. The sterile box cannot be completely sealed due to the presence of the blade, which easily leads to contamination of the catheter tip. Furthermore, it is not for single use, increasing the probability of contamination. To address these problems, this invention proposes a disposable catheter tip culture pack, comprising a shearing component, a storage component, and other matching disposable supplies stored within the same culture pack. The lower part of the shearing component is detachably connected to a storage component. The shearing component has a cutting blade on each of its two sides, with the blades facing each other and both blades capable of sliding. The storage component is self-sealing.

[0007] In this embodiment, the cutting component and the storage component work together. The cutting component can efficiently cut the catheter tip, avoiding liquid splashing inside the catheter tip. The storage component can directly receive the catheter tip that falls off after cutting, realizing the storage of the catheter tip and facilitating the subsequent transportation process. The storage body is made of various materials, and different materials can be detachably connected to the cutting component and can all be self-sealing, which can prevent the catheter tip from being lost and affecting subsequent work.

[0008] In a preferred embodiment of the present invention, the other disposable supplies include cleaning gloves, sterile gloves, iodine swabs, gauze, dressings, disposable pointed tweezers, and disposable blades. These disposable supplies can prevent infection and contamination, thus avoiding impact on the subsequent culture process.

[0009] In a preferred embodiment of the present invention, the shearing assembly includes a fixing part, a limiting block is provided at the lower end of the outer wall of the fixing part, a sliding groove is provided on the inner wall of the fixing part to facilitate the sliding of the cutting blade, the lower end surface of the fixing part is its lowest surface, the fixing part is made of hard plastic, the limiting block facilitates the connection of the storage assembly, and the sliding groove facilitates the movement of the cutting blade.

[0010] In a preferred embodiment of the present invention, the storage component includes a storage body, which is made of rigid plastic and is in the shape of a cylindrical tube. The storage body is inserted into the shearing component and fits against the limiting block. A sealing plug is provided on the top of the storage body. The storage body and the fixing part are inserted into each other, and the sealing plug can seal the storage body.

[0011] In a preferred embodiment of the present invention, the storage component includes a storage body, which adopts a self-sealing bag structure. A sealing rib is provided in the middle of the storage body, and two fixing blocks are provided in the upper part of the storage body. The two fixing blocks fit against the outer wall of the fixing part and are interlocked with each other. The self-sealing bag and the sealing rib can achieve a closed seal, and the fixing blocks can be connected to each other and fit tightly against the outer wall of the fixing part, thereby realizing the connection between the self-sealing bag and the fixing part.

[0012] In a preferred embodiment of the present invention, the storage body has a tear line between the sealing rib and the fixing block that is easy to break. The self-sealing bag can be quickly torn open through the tear line to facilitate the subsequent transportation process.

[0013] In a preferred embodiment of the present invention, the sealing bone is located below the lowest surface, and the tear line is located above the lowest surface. The position of the sealing bone allows the self-sealing bag to be sealed directly without the need to remove it for sealing.

[0014] In a preferred embodiment of the present invention, the main body of the storage unit extends upward into two parts, and the two fixing blocks are respectively bonded to the extended parts through the inner wall, and the self-sealing bag and the fixing strap are fixed by bonding.

[0015] In a preferred embodiment of the present invention, the surfaces of the two fixing blocks that are in contact with each other are respectively provided with a locking block and a locking groove. The two fixing blocks are connected by locking the locking block into the locking groove. After the two fixing blocks are locked together, they form a ring shape. The fixing blocks are fixed by the cooperation of the locking groove and the locking block.

[0016] In a preferred embodiment of the present invention, the inner diameter of the fixed block, which forms a ring shape after being snapped in, is slightly larger than the outer diameter of the fixed part. The upper surfaces of the fixed block and the limiting block are in contact. After the fixed block is snapped in, it is fitted onto the outside of the fixed part and is restricted by the limiting block to prevent it from falling off.

[0017] The advantages of this utility model compared with the prior art are:

[0018] In this embodiment, the cutting component and the storage component work together. The cutting component can efficiently cut the catheter tip, avoiding liquid splashing inside the catheter tip. The storage component can directly receive the catheter tip that falls off after cutting, realizing the storage of the catheter tip and facilitating the subsequent transportation process. The storage body is made of various materials, and different materials can be detachably connected to the cutting component and can all be self-sealing, which can prevent the catheter tip from being lost and affecting subsequent work. Attached Figure Description

[0019] Figure 1 This is a perspective view of Embodiment 1 of the present utility model;

[0020] Figure 2 This is a three-dimensional schematic diagram of the shearing component of this utility model;

[0021] Figure 3 This is a three-dimensional schematic diagram of the storage component in Embodiment 1 of this utility model;

[0022] Figure 4 This is a front view schematic diagram of Embodiment 2 of this utility model;

[0023] Figure 5 This is a three-dimensional schematic diagram of the storage component in Embodiment 2 of this utility model;

[0024] Among them: 1-cutting component, 2-storage component, 21-storage body, 22-sealing plug, 23-sealing bone, 24-tear line, 25-fixing block, 26-card block, 27-card slot, 3-fixing part, 31-limiting block, 32-sliding groove, 33-lowest surface, 4-cutting blade. Detailed Implementation

[0025] The following will refer to the appendix in the embodiments of this utility model. Figure 1-5 The technical solutions in the embodiments of this utility model will be described in detail below. Example 1

[0026] like Figure 1-3 As shown, this utility model is a disposable catheter tip culture kit, including a cutting component 1, a storage component 2, and other matching disposable items. All of the above items are stored in the same packaging bag to form a disposable culture kit.

[0027] Other disposable supplies included are cleaning gloves, sterile gloves, iodine swabs, gauze, dressings, disposable pointed tweezers, and disposable blades, all of which are existing products. The cutting component 1 and the storage component 2 are detachably connected and can be connected before use.

[0028] The shearing assembly 1 includes a fixing part 3, which is cylindrical in shape and made of rigid plastic, with both ends open. Figure 2 For example, at this time, the shearing component 1 is in the main viewing angle. The inner wall of the fixing part 3 protrudes inward from front to back to form parallel wall surfaces. The protruding part has a groove 32. The cutting blade 4 is set on both sides of the fixing part 3, and the front and rear sides of the cutting blade 4 extend into the groove 32. The outer sides of the cutting blade 4 extend out from both sides of the fixing part 3, and the end of the extended part is fixed with a handle that is easy to squeeze.

[0029] By pinching the handles on both sides and applying force inward, the cutting blade 4 will move inward along the slide groove 32. The two cutting blades 4 are staggered to facilitate cutting off the guide tube head.

[0030] The outer wall of the fixing part 3 protrudes outward near the lower end to form a limiting block 31, which cooperates with the storage component 2. The lower end of the fixing part 3 is the lowest surface 33 of the cutting component 1. When the guide head is cut off by the cutting blade 4, the guide head falls from here and enters the storage component 2 below.

[0031] In this embodiment, the storage component 2 includes a storage body 21, which is made of rigid plastic and is in the shape of a cylindrical tube. The bottom of the storage body 21 is sealed, and the top of the storage body 21 is provided with an openable sealing plug 22. When needed, the sealing plug 22 is opened, and then the top opening of the storage body 21 is inserted into the lower end of the fixing part 3 until the storage body 21 is in contact with the limiting block 31. At this time, the storage component 2 is connected to the shearing component 1. After the guide tube head is cut by the shearing component 1, the guide tube head falls into the bottom of the storage body 21. Then the storage body 21 is pulled out, and the sealing plug 22 is used to seal the storage body 21.

[0032] The sealing plug 22 is hinged to the housing body 21. Specifically, a connecting part is provided on the outer wall of the housing body 21, and the sealing plug 22 and the connecting part are rotatably connected by a pivot, thereby realizing the opening and closing of the sealing plug 22 and preventing the sealing plug 22 from falling off or being lost. A sealing ring is provided on the wall surface where the sealing plug 22 fits against the housing body 21, which can increase the sealing of the housing body 21 and prevent the tube head from being in contact with the external environment for a long time, which could lead to contamination and affect subsequent culture work.

[0033] The method of using a disposable catheter tip culture pack in this embodiment is as follows:

[0034] First, open the culture pack, take out the clean gloves and put them on your hands. Then, tear open the packaging bags of the shearing component 1 and the storage component 2, take out the storage component 2, and remove the sealing plug 22. Align the lower end of the fixing part 3 of the shearing component 1 with the top opening of the storage body 21 and insert it until the storage body 21 fits against the limiting block 31. Then, take off the clean gloves, take out and put on sterile gloves, and use disposable pointed forceps and disposable blades to remove the sutures on the patient's body surface (this operation is not necessary if there are no sutures). Next, disinfect the puncture area with iodine swabs. After disinfection, remove the gauze, press it on the puncture point and remove the catheter. After the catheter is removed, apply a dressing to the puncture site.

[0035] Then, move both cutting blades 4 of the cutting assembly 1 outwards, insert the removed tube head between the two cutting blades 4, pinch the handles of the two cutting blades 4 and apply inward force to cut off the tube head. The tube head falls into the storage body 21 of the storage assembly 2. Then, pull the storage body 21 off from the lower end of the cutting assembly 1 and seal the storage body 21 with the sealing plug 22. After the operation is completed, the storage body 21 can be transported later. Other items after use should be sorted and thrown into different trash cans for subsequent disposal. Example 2

[0036] like Figure 4-5 This embodiment differs from Embodiment 1 in that the storage component 2 is different, but everything else remains the same as in Embodiment 1.

[0037] In this embodiment, the storage body 21 of the storage component 2 adopts a self-sealing bag structure. The self-sealing bag is a prior art technology. The self-sealing bag is sealed by its own sealing bone 23. The thickness of the self-sealing bag 21 is sufficient to meet the needs of the transfer of the catheter head and will not be punctured by the needle at the end of the catheter head due to the transfer.

[0038] The sealing rib 23 of the self-sealing bag is located near its upper end. There is still some distance between the sealing rib 23 and the top of the self-sealing bag. Therefore, even after the sealing rib 23 is closed, the top of the self-sealing bag is not sealed. Parts of the bag body extend upward from both sides of this part and are bonded and fixed to the inner wall of the fixing block 25.

[0039] The two fixing blocks 25 can be interlocked to form a ring. The inner diameter of the ring is slightly larger than the outer diameter of the fixing part 3. After the two fixing blocks 25 are interlocked, they fit against the upper wall of the limiting block 31. The storage component 2 will not fall off due to the blocking effect of the limiting block 31.

[0040] The surfaces of the two fixing blocks 25 that are in contact with each other are respectively provided with a locking block 26 and a locking groove 27. The locking block 26 is inserted into the locking groove 27 to realize the locking connection between the two fixing blocks 25. Since the two fixing blocks 25 are locked together, the storage component 2 cannot be installed at the lower end of the cutting component 1 when they are not connected. Only after the two are locked together can the storage component 2 be fixed at the lower end of the cutting component 1, thereby realizing the detachable connection between the cutting component 1 and the storage component 2.

[0041] The self-sealing bag, which serves as the main storage unit 21, has a tear line 24 between the sealing rib 23 and the fixing block 25 for easy disconnection. The processing method of the tear line 24 is existing technology. The self-sealing bag can be easily torn open and separated along the tear line 24. Since the tear line 24 is located above the sealing rib 23, after tearing and separating, the cut tube head is located in the lower part, and the sealing rib 23 achieves the sealing of this part, allowing for direct transport.

[0042] The sealing bone 23 is located below the lowest surface 33. After the tube head is cut off and falls to the bottom of the self-sealing bag, there is no need to disassemble the self-sealing bag. The self-sealing bag can be sealed directly through the sealing bone 23, and then the self-sealing bag can be torn open and separated through the tear line 24. The tear line 24 is located above the lowest surface 33. At this time, you can pull it down directly to separate the self-sealing bag along the tear line 24. If the tear line 24 is also located below the lowest surface 33, then you can manually tear it open along the tear line 24.

[0043] The above embodiments are only for illustrating the technical concept of this utility model and should not be used to limit the protection scope of this utility model. Any modifications made to the technical solution based on the technical concept proposed by this utility model shall fall within the protection scope of this utility model.

Claims

1. A disposable catheter hub culture pack comprising a cutting assembly (1), a receiving assembly (2) and a matched set of disposables stored within the same culture pack, characterized in that: The lower part of the shearing component (1) is detachably connected to a storage component (2). There is a cutting blade (4) on each side of the inside of the shearing component (1). The blades of the two cutting blades (4) face each other and can slide. The storage component (2) can seal itself.

2. The disposable catheter tip culture kit according to claim 1, characterized in that: The accompanying disposable supplies include cleaning gloves, sterile gloves, iodine swabs, gauze, dressings, disposable pointed tweezers, and disposable blades.

3. The disposable catheter tip culture kit according to claim 1, characterized in that: The shearing assembly (1) includes a fixing part (3), a limiting block (31) is provided at the lower end of the outer wall of the fixing part (3), a groove (32) is provided on the inner wall of the fixing part (3) to facilitate the sliding of the cutting blade (4), and the lower end surface of the fixing part (3) is its lowest surface (33).

4. The disposable catheter tip culture kit according to claim 3, characterized in that: The storage component (2) includes a storage body (21), which is made of hard plastic and is in the shape of a round tube. The storage body (21) is inserted into the shearing component (1) and fits against the limiting block (31). A sealing plug (22) is provided on the top of the storage body (21).

5. A disposable catheter tip culture kit according to claim 3, characterized in that: The storage component (2) includes a storage body (21), which adopts a self-sealing bag structure. A sealing bone (23) is provided in the middle of the storage body (21), and two fixing blocks (25) are provided on the upper part of the storage body (21). The two fixing blocks (25) fit against the outer wall of the fixing part (3) and are interlocked with each other.

6. A disposable catheter tip culture kit according to claim 5, characterized in that: The storage body (21) has a tear line (24) between the sealing bone (23) and the fixing block (25) for easy disconnection.

7. A disposable catheter tip culture kit according to claim 6, characterized in that: The sealing bone (23) is located below the lowest surface (33), and the tear line (24) is located above the lowest surface (33).

8. A disposable catheter tip culture kit according to claim 5, characterized in that: The storage body (21) extends upward into two parts, and two fixing blocks (25) are respectively bonded to the extended parts through the inner wall.

9. A disposable catheter tip culture kit according to claim 5, characterized in that: The surfaces of the two fixing blocks (25) that are in contact with each other are respectively provided with a locking block (26) and a locking groove (27). The two fixing blocks (25) are connected by locking the locking block (26) into the locking groove (27). After the two fixing blocks (25) are locked together, they form a ring shape.

10. A disposable catheter tip culture kit according to claim 9, characterized in that: The inner diameter of the ring-shaped fixing block (25) after snapping is slightly larger than the outer diameter of the fixing part (3), and the upper surface of the fixing block (25) is attached to the limiting block (31).