A needle cap holder with support stability

The needle cap holder, which combines hydraulic linkage and mechanical self-adaptation, solves the problem that traditional holders cannot accommodate needle caps of different sizes. It achieves stable fixation and safe storage of needle caps, reduces the risk of needlestick injuries, and improves operational efficiency and convenience.

CN224484637UActive Publication Date: 2026-07-14厦门医学院附属第二医院

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
厦门医学院附属第二医院
Filing Date
2025-04-17
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Traditional needle cap holders cannot adapt to different sizes of needle caps, leading to loosening or falling off, increasing the risk of needle exposure, and affecting the safety and operational efficiency of medical staff.

Method used

The needle cap holder adopts hydraulic linkage and mechanical self-adaptation, using elastic pressure fixing plates and hydraulic system to automatically adapt to needle caps of different diameters and lengths, ensuring firm clamping, and the closed structure avoids contamination and exposure.

Benefits of technology

It achieves stable fixation of the needle cap, reduces the risk of shaking and falling off, lowers the risk of needlestick injury, improves operational efficiency and convenience, and ensures a smooth fixation and release process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a support stable needle cap fixing frame, including the frame box, the rear side rotation of frame box upper end is connected with the box cover, the frame box upper end is equipped with a plurality of storage grooves, a plurality of storage groove lower end inner wall center all are equipped with fixed groove, a plurality of fixed groove inside all are inserted with needle cap head, a plurality of fixed groove upper end both sides all are provided with fixed clamping plate, and a plurality of fixed clamping plate respectively are pasted in a plurality of needle cap head's left and right two end outside, a plurality of fixed clamping plate upper end are connected with into sliding plate, the utility model discloses the fixed clamping plate cooperation hydraulic pressure linkage system of elastic pressurization can automatically adapt to the needle cap of different diameter and length, ensure that needle cap is firmly clamped when placing, avoid shaking or falling off, and the fixed clamping plate is closely pasted needle cap outer wall through spring pressure, and the hydraulic system dynamic regulation bottom support height simultaneously, makes different specifications needle cap all can be stabilized and fixed, reduces artificial adjustment step, improves operating efficiency.
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Description

Technical Field

[0001] This utility model belongs to the field of medical injection related technology, specifically relating to a stable needle cap fixing bracket. Background Technology

[0002] In medical injection procedures, the storage and securing of needle caps are crucial to the safety of medical personnel and the efficiency of the procedure. Traditional needle cap storage methods typically use open trays or simple slots, which cannot accommodate needle caps of different sizes. This leads to needle caps easily loosening or falling off, increasing the risk of needle exposure and potentially causing needlestick injuries.

[0003] This patent addresses the aforementioned issues by proposing a needle cap holder based on hydraulic linkage and mechanical self-adaptation. This ensures stable fixation of the needle cap and facilitates easy placement and removal, while providing dual protection against contamination and puncture wounds, thus offering a safer and more efficient solution for clinical injection procedures. Utility Model Content

[0004] The purpose of this utility model is to provide a stable needle cap holder to solve the problem mentioned in the background art that traditional needle cap holders, which use open trays or simple slots, cannot adapt to different sizes of needle caps.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stable needle cap holder, including a frame box, a box cover rotatably connected to the rear side of the upper end of the frame box, multiple storage slots opened at the upper end of the frame box, a fixing slot opened at the center of the lower inner wall of each of the multiple storage slots, a needle cap head inserted into each of the multiple fixing slots, fixing plates provided inside the left and right sides of the upper end of each of the multiple fixing slots, and the multiple fixing plates respectively abutting the left and right ends of the multiple needle cap heads, an entry slide plate connected to the upper end of the multiple fixing plates, a limiting base provided inside the center of the lower end of each of the multiple fixing slots, and the multiple limiting bases respectively located at the lower end of the multiple needle cap heads, a hydraulic adjustment component provided between two fixing plates and limiting bases located inside the same fixing slot.

[0006] Preferably, the needle cap consists of an upper cap and a lower needle, and the upper center of the limiting base has a needle hole, and the upper end of the limiting base is provided with a rubber pad, which is located between the cap of the needle cap and the limiting base.

[0007] Preferably, the fixing clamp is attached to the outside of the cap of the needle cap, and the needle of the needle cap is inserted into the needle hole opened at the upper end of the limiting base. The upper side of the slide plate is flared and tilted away from the needle cap.

[0008] Preferably, the hydraulic adjustment assembly includes an adjustment piston rod, a side hydraulic chamber, a clamping spring, a bottom hydraulic chamber, a connecting pipe, and a distribution pipe. The ends of the multiple fixed clamps away from the needle cap head are all connected to the adjustment piston rods. The inner walls of the left and right ends of the multiple fixed grooves are all provided with side hydraulic chambers, and the multiple adjustment piston rods are respectively inserted into the multiple side hydraulic chambers, with rubber sealing gaskets provided between them.

[0009] Preferably, a clamping spring is provided inside the end of the adjusting piston rod away from the needle cap head, and is elastically connected to the inside of the side hydraulic chamber through the clamping spring. The upper end of the side hydraulic chamber away from the needle cap head is connected to a first flat pressure air hole, and is connected to the receiving groove through the first flat pressure air hole.

[0010] Preferably, a bottom hydraulic cavity is formed at the center of the inner wall of the lower end of the fixing groove, and the limiting base is slidably connected to the inside of the bottom hydraulic cavity, and a rubber sealing gasket is provided between the limiting base and the bottom hydraulic cavity. Multiple second flat pressure air holes are connected to the outer side of the upper end of the bottom hydraulic cavity, and the bottom hydraulic cavity is connected to the fixing groove through the multiple second flat pressure air holes. A connecting pipe is connected at the center of the lower end of the bottom hydraulic cavity, and a distribution pipe is connected at the lower end of the connecting pipe and connected to the middle of the distribution pipe.

[0011] Preferably, the two ends of the distribution pipe are respectively connected to the two side hydraulic chambers at both ends of the fixed groove, and the connection is located on the inner wall of the two side hydraulic chambers near the needle cap. Hydraulic oil is provided inside the side hydraulic chamber, the bottom hydraulic chamber, the connecting pipe and the distribution pipe, and a damper is provided inside the connecting pipe.

[0012] Compared with the prior art, the present invention provides a stable needle cap holder, which has the following advantages:

[0013] 1. This utility model adopts an elastic pressure fixing clamp combined with a hydraulic linkage system, which can automatically adapt to needle caps of different diameters and lengths, ensuring that the needle caps are firmly clamped when placed, preventing shaking or falling off. The fixing clamp is tightly attached to the outer wall of the needle cap by spring pressure, while the hydraulic system dynamically adjusts the bottom support height, so that needle caps of different specifications can be stably fixed, reducing manual adjustment steps and improving operation efficiency.

[0014] 2. This utility model uses hydraulic oil to transmit pressure, realizing the coordinated movement of the lateral clamp and the bottom support. When the needle cap is inserted, the clamp moves outward to squeeze the hydraulic oil, pushing the bottom support downward to provide sufficient storage space for the needle cap. When it is removed, the hydraulic oil flows back slowly under the control of the damper to avoid the clamp resetting too early and interfering with the removal, ensuring a smooth fixing and releasing process, and improving the convenience and reliability of use.

[0015] 3. The fixing bracket of this utility model adopts a closed structure, and the cover can completely cover the needle cap to avoid external contamination. The needle is fully inserted into the needle hole of the bottom support to avoid exposure and reduce the risk of needle stick injuries to medical staff.

[0016] 4. The flared design of the slide plate in this utility model facilitates quick alignment of the needle cap and its sliding into the fixed position, reducing operation time. The hydraulic cavity is equipped with a flat pressure air hole to ensure smooth piston movement and avoid jamming. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the needle cap fixing bracket of this utility model.

[0018] Figure 2 This is a three-dimensional cross-sectional structural diagram of the needle cap fixing bracket of this utility model.

[0019] Figure 3 This is a schematic diagram of the connection structure of the hydraulic adjustment component of this utility model.

[0020] Figure 4 This is a schematic diagram of the fixed clamp connection structure of this utility model.

[0021] In the diagram: 1. Shelf; 2. Cover; 3. Storage slot; 4. Fixing slot; 5. Needle cap; 6. Fixing clamp; 7. Entering slide; 8. Limiting base; 9. Adjusting piston rod; 10. Side hydraulic chamber; 11. Tensioning spring; 12. First flat pressure air hole; 13. Bottom hydraulic chamber; 14. Second flat pressure air hole; 15. Connecting pipe; 16. Distribution pipe; 17. Damper. Detailed Implementation

[0022] 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.

[0023] This utility model provides, for example Figures 1-4The illustrated pin cap holder includes a housing 1, with a cover 2 rotatably connected to the rear upper side of the housing 1. Multiple storage slots 3 are formed at the upper end of the housing 1, and fixing slots 4 are formed at the center of the inner wall of each of the lower ends of the storage slots 3. Pin caps 5 are inserted into each of the fixing slots 4. Fixing plates 6 are provided on the left and right sides of the upper end of each fixing slot 4, and these fixing plates 6 are respectively attached to the left and right ends of the pin caps 5. An entry slide 7 is connected to the upper end of each fixing plate 6. Each fixed groove 4 has a limiting base 8 at its lower center, and multiple limiting bases 8 are located at the lower ends of multiple needle caps 5. A hydraulic adjustment component is provided between the two fixed clamps 6 located in the same fixed groove 4 and the limiting base 8. The needle cap 5 consists of an upper cap and a lower needle. After removing the needle cap 5 from the syringe, the needle cap 5 can be placed using the needle cap fixing bracket, which can reduce the risk of medical staff being pricked by the needle and reduce the risk of the needle cap 5 being contaminated.

[0024] The limiting base 8 has a pinhole at its upper center and a rubber pad at its upper end, located between the cap of the needle head 5 and the limiting base 8. The fixing plate 6 is attached to the outside of the cap of the needle head 5, and the needle of the needle head 5 is inserted into the pinhole at the upper end of the limiting base 8. The needle enters the upper side of the slide plate 7 in a funnel shape, tilting away from the needle head 5. After removing the needle head 5, the upper end of the frame box 1 is opened through the box cover 2, and the needle head 5 is placed into the fixing slot 4 through the storage slot 3. During the process of placing the needle head 5 into the fixing slot 4, the cap of the needle head 5 is inserted between the two entry slide plates 7 inside the storage slot 3, and tilts towards the funnel-shaped inner wall between the two entry slide plates 7. The slide is pushed down, causing the slide plate 7 to move to both sides, while simultaneously moving the fixing plates 6 on both sides to move to both sides until the cap of the needle head 5 slides between the two fixing plates 6. At this point, the needle head 5 is pressed down further, allowing the needle tip of the needle head 5 to insert into the needle hole opened at the upper end of the limiting base 8, and to fit against the upper end of the limiting base 8 through the rubber pad, so that the cap of the needle head 5 can be fixed in the fixing groove 4 by the two fixing plates 6, and supported at the bottom by the limiting base 8. The needle tip of the needle head 5 can be stored through the needle hole. In addition, the two fixing plates 6 can adapt to needle heads 5 of different thicknesses by moving, ensuring that the fixing frame can stably fix needle heads 5 of different thicknesses.

[0025] like Figure 2 and Figure 3As shown, the hydraulic adjustment assembly includes an adjustment piston rod 9, a side hydraulic chamber 10, a clamping spring 11, a bottom hydraulic chamber 13, a connecting pipe 15, and a distribution pipe 16. Multiple fixing plates 6 are each connected to an adjustment piston rod 9 at the end furthest from the needle cap 5. Side hydraulic chambers 10 are formed on the inner walls of both ends of multiple fixing slots 4, and multiple adjustment piston rods 9 are respectively inserted into the interiors of multiple side hydraulic chambers 10, with rubber sealing gaskets between them. A clamping spring 11 is installed inside the end of the adjustment piston rod 9 furthest from the needle cap 5, and it is elastically connected to the interior of the side hydraulic chamber 10 through the clamping spring 11. A first flat pressure air hole 12 is connected to the upper end of the side hydraulic chamber 10 furthest from the needle cap 5, and it is connected to the receiving end through the first flat pressure air hole 12. Since the groove 3 is connected, during the adaptive fixing of the needle cap 5, the adjusting piston rod 9 can slide inside the side hydraulic cavity 10, and the fixing clamp 6 is connected to the adjusting piston rod 9. Therefore, the fixing clamp 6 can move inside the fixing groove 4 through the sliding of the adjusting piston rod 9 inside the side hydraulic cavity 10, and can be tightly attached to the outside of the needle cap 5 by the pushing of the clamping spring 11. This allows the fixing clamp 6 to fix needle caps 5 of different thicknesses, and also ensures the stability of the needle cap 5. During the left and right sliding of the adjusting piston rod 9 inside the side hydraulic cavity 10, the air on the side of the side hydraulic cavity 10 away from the needle cap 5 can be drawn in and discharged through the first flat pressure air hole 12, ensuring that the adjusting piston rod 9 can slide smoothly.

[0026] like Figure 3As shown, a bottom hydraulic cavity 13 is provided at the center of the lower inner wall of the fixing groove 4, and the limiting base 8 is slidably connected to the inside of the bottom hydraulic cavity 13, with a rubber sealing gasket between it and the bottom hydraulic cavity 13. Multiple second flat pressure air holes 14 are connected to the outer side of the upper end of the bottom hydraulic cavity 13, and it communicates with the fixing groove 4 through these holes. A connecting pipe 15 is connected at the center of the lower end of the bottom hydraulic cavity 13, and a distribution pipe 16 is connected to the lower end of the connecting pipe 15, with the pipe connected to the middle of the distribution pipe 16. Both ends of the distribution pipe 16 are connected to the two side hydraulic cavities 10 at both ends of the fixing groove 4, with the connection points located on the inner wall of the two side hydraulic cavities 10 near the needle cap 5. Hydraulic oil is provided inside the side hydraulic cavities 10, the bottom hydraulic cavity 13, the connecting pipe 15, and the distribution pipe 16. A damper 17 is provided inside the connecting pipe 15. During the fixing process, the fixing clamp 6 pushes the adjusting piston rod 9 to slide outward inside the side hydraulic chamber 10, causing the side hydraulic chamber 10 to generate negative pressure on the side near the needle cap 5. At this time, the side hydraulic chamber 10 draws out the hydraulic oil inside the bottom hydraulic chamber 13 through the connecting pipe 15 and the distribution pipe 16, causing negative pressure to be generated on the lower side inside the bottom hydraulic chamber 13. This causes the limiting base 8 to move downward inside the bottom hydraulic chamber 13 to make room inside the fixing groove 4. The thicker the needle cap 5, the more room the limiting base 8 makes, ensuring that the needle cap 5 can be completely stored inside the storage groove 3 and the fixing groove 4. This ensures that the needle cap 5 does not obstruct the sealing of the box cover 2 on the upper end of the frame box 1. During the up-and-down sliding of the limiting base 8 inside the bottom hydraulic chamber 13, the air inside the upper side of the bottom hydraulic chamber 13 can be drawn in and discharged through multiple second flat pressure air holes 14, ensuring that the limiting base 8 can slide smoothly.

[0027] Furthermore, when the needle cap 5 is reattached to the lower end of the syringe, the lower end of the syringe is inserted into the upper end of the needle cap 5 and pressed down to ensure a secure connection between the needle cap 5 and the syringe. At this time, the needle cap 5 presses down against the limiting base 8, and through the limiting base 8, the hydraulic oil on the lower side of the bottom hydraulic chamber 13 is squeezed into the side hydraulic chamber 10 near the needle cap 5. This causes the adjusting piston rod 9 to slide away from the needle cap 5 and moves the fixing clamp 6 away from the needle cap 5, releasing the fixing clamp 6 from the needle cap 5 and allowing the needle cap 5 to be easily removed from the storage slot 3 and the fixing slot 4.

[0028] In addition, when the syringe pulls the needle cap 5 out of the storage slot 3 and the fixing slot 4, the upper end of the limiting base 8 loses pressure. At the same time, the adjusting piston rod 9 slides towards the side closer to the needle cap 5 under the action of the clamping spring 11, squeezing the hydraulic oil inside the side hydraulic chamber 10 near the needle cap 5 back into the lower side of the bottom hydraulic chamber 13. Since the connecting pipe 15 is equipped with a damper 17, the hydraulic oil will be slowed down by the damper 17 when it flows from the side hydraulic chamber 10 to the bottom hydraulic chamber 13, so that the fixing clamp 6 cannot be attached to the outside of the needle cap 5 in time, ensuring that the needle cap 5 can be taken out smoothly.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stable needle cap holder, characterized in that, The device includes a frame box (1), a cover (2) is rotatably connected to the rear side of the upper end of the frame box (1), multiple storage slots (3) are opened at the upper end of the frame box (1), a fixing slot (4) is opened at the center of the lower inner wall of each of the multiple storage slots (3), a needle cap (5) is inserted into each of the multiple fixing slots (4), a fixing plate (6) is provided on the left and right sides of the upper end of each of the multiple fixing slots (4), and the multiple fixing plates (6) are respectively attached to the left and right sides of the multiple needle caps (5), an entry slide plate (7) is connected to the upper end of each of the multiple fixing plates (6), a limiting base (8) is provided at the center of the lower end of each of the multiple fixing slots (4), and the multiple limiting bases (8) are respectively located at the lower end of the multiple needle caps (5), and a hydraulic adjustment component is provided between the two fixing plates (6) and the limiting base (8) located in the same fixing slot (4).

2. The needle cap fixing bracket according to claim 1, characterized in that: The needle cap (5) consists of an upper cap and a lower needle. The upper center of the limiting base (8) has a needle hole, and the upper end of the limiting base (8) is provided with a rubber pad, which is located between the cap of the needle cap (5) and the limiting base (8).

3. The needle cap fixing bracket according to claim 2, characterized in that: The fixing clamp (6) is attached to the outside of the cap of the needle cap (5), and the needle of the needle cap (5) is inserted into the needle hole opened at the upper end of the limiting base (8). The upper side of the sliding plate (7) is flared and tilted away from the needle cap (5).

4. The needle cap fixing bracket according to claim 3, characterized in that: The hydraulic adjustment assembly includes an adjustment piston rod (9), a side hydraulic chamber (10), a clamping spring (11), a bottom hydraulic chamber (13), a connecting pipe (15), and a distribution pipe (16). The ends of the multiple fixed clamps (6) away from the needle cap (5) are all connected to the adjustment piston rod (9). The inner walls of the left and right ends of the multiple fixed grooves (4) are provided with side hydraulic chambers (10), and the multiple adjustment piston rods (9) are respectively inserted into the multiple side hydraulic chambers (10), and a rubber sealing gasket is provided between them and the side hydraulic chambers (10).

5. The needle cap fixing bracket according to claim 4, characterized in that: The adjusting piston rod (9) has a clamping spring (11) inside the end away from the needle cap (5), and is elastically connected to the side hydraulic chamber (10) through the clamping spring (11). The upper end of the side hydraulic chamber (10) away from the needle cap (5) is connected to the first flat pressure air hole (12), and is connected to the storage groove (3) through the first flat pressure air hole (12).

6. The needle cap fixing bracket according to claim 5, characterized in that: A bottom hydraulic cavity (13) is provided at the center of the inner wall of the lower end of the fixed groove (4), and the limiting base (8) is slidably connected to the inside of the bottom hydraulic cavity (13), and a rubber sealing gasket is provided between it and the bottom hydraulic cavity (13). Multiple second flat pressure air holes (14) are connected to the outer side of the upper end of the bottom hydraulic cavity (13), and it is connected to the fixed groove (4) through multiple second flat pressure air holes (14). A connecting pipe (15) is connected at the center of the lower end of the bottom hydraulic cavity (13), and a distribution pipe (16) is connected at the lower end of the connecting pipe (15), and it is connected to the middle of the distribution pipe (16).

7. A stable needle cap holder according to claim 6, characterized in that: The two ends of the distribution pipe (16) are respectively connected to the two side hydraulic chambers (10) at both ends of the fixed groove (4), and the connection is located on the inner wall of the two side hydraulic chambers (10) near the needle cap (5). The side hydraulic chambers (10), the bottom hydraulic chamber (13), the connecting pipe (15) and the distribution pipe (16) are all filled with hydraulic oil. The connecting pipe (15) is filled with a damper (17).