Needle cap clamping structure for uncapping of dispensing aspirator
By designing a needle cap clamping structure for a drug dispensing applicator, and using cylinders and grippers to automate needle cap clamping and removal, the problems of easy infection and non-standard operation during needle cap removal in existing technologies are solved, achieving efficient and safe needle cap management.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 美蓝(杭州)医药科技有限公司
- Filing Date
- 2025-06-27
- Publication Date
- 2026-05-15
AI Technical Summary
Existing drug dispensing devices are prone to causing infection during the needle cap removal process, and are also inefficient due to improper operation.
A needle cap clamping structure for a drug dispensing applicator was designed. The clamping mechanism uses a cylinder and grippers to automatically clamp and remove the needle cap. Combined with a limiting mechanism, the stability of the needle cap during the cap removal and repositioning process is ensured and the drug solution is prevented from dripping.
It effectively prevents infection, improves the standardization and efficiency of operation, ensures stable clamping of the needle cap, avoids drug dripping, and enhances the safety and convenience of operation.
Smart Images
Figure CN224242680U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aspirator technology, specifically a needle cap clamping structure for removing the cap from a drug aspirator. Background Technology
[0002] Currently, manual capping or removal is generally used, but this method is prone to infection, lacks standardization, and is inefficient. Therefore, there is an urgent need to develop a needle cap clamping structure for removing the cap from a dispensing applicator to address the problems in existing technologies. Utility Model Content
[0003] The purpose of this invention is to provide a needle cap clamping structure for removing the cap from a drug dispensing aspirator. This clamping structure can prevent infection, improve efficiency, and is simple in structure and easy to use, thereby solving the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A needle cap clamping structure for removing the cap from a drug dispensing applicator includes an applicator body, a slide, and a cover plate disposed on one side of the slide. The bottom side of the applicator body is provided with a needle cap body, and the structure also includes:
[0006] The clamping mechanism includes a cylinder disposed inside the cover plate. Two exhaust throttle valves are provided on one outer wall of the cylinder. Two rotating shafts are provided on the inner wall of the cylinder. A first clamping claw and a second clamping claw are respectively provided on the outer circumference of the two rotating shafts. The needle cap body is located between the first clamping claw and the second clamping claw.
[0007] A limiting mechanism is provided, which is adapted to the needle cap body.
[0008] By adopting the above technical solution, the cylinder is controlled by the exhaust throttle valve to drive the first and second grippers to rotate around the rotating shaft, thereby realizing the opening and gripping action. During the opening of the first and second grippers, the aspirator body is placed in, so that the needle cap body is located between the first and second grippers. Then, the needle cap body is held by the gripping action. During the process of removing the needle cap, the needle cap body can be continuously held to prevent the medicine on the needle tip from dripping and causing contamination, thus preventing infection. The operation is standardized and more efficient.
[0009] As a further embodiment of this utility model, the first gripper and the second gripper are symmetrically arranged.
[0010] By adopting the above technical solution, the first and second grippers are completely symmetrical structures. When opening and gripping on both sides of the needle cap body, their movements are consistent, without causing errors, thus better gripping the needle cap body and ensuring stable gripping.
[0011] As a further embodiment of this utility model: both the first gripper and the second gripper are used in conjunction with the needle cap body.
[0012] By adopting the above technical solution, the first and second grippers are used to clamp the needle cap body, so that the needle cap body is in a vertical clamping state. During the removal of the needle cap body, the needle cap body can be continuously clamped and tightly fitted.
[0013] As a further embodiment of this utility model: the limiting mechanism includes adapter grooves respectively provided on the outer walls of the first gripper and the second gripper on opposite sides, and a slot is provided on the inner wall of the adapter groove near the top. The needle cap body is located between the two adapter grooves, and a first protrusion and a second protrusion are respectively provided on the outer circumferential wall of the needle cap body. The first protrusion is located at the top of the adapter groove, and the second protrusion is located between the two slots.
[0014] By adopting the above technical solution, an adapter groove is opened on the opposite side of the first and second grippers, and a slot is opened in the adapter groove. The needle cap body of the aspirator body is provided with a first protrusion and a second protrusion. When the first and second grippers clamp the needle cap body, the second protrusion is limited in the slot, and the upper ends of the first and second grippers are just locked with the first protrusion to prevent the needle cap body from falling, and the clamping operation is flexible.
[0015] As a further embodiment of this utility model: the card slot is configured as an annular groove, and the second protrusion is adapted to the card slot.
[0016] As a further embodiment of this utility model: the size of the first protrusion is larger than the size of the adapter groove, and the first protrusion is located at the top of the first gripper and the second gripper.
[0017] As a further embodiment of this utility model: the needle cap body is adapted to the adapter groove.
[0018] By adopting the above technical solution, when the first and second grippers clamp the needle cap body, the adapter groove adapts to the needle cap body to initially limit its position, and the annular groove-shaped slot adapts to the shape of the second protrusion, so that the second protrusion is limited in the slot. Together with the first protrusion limited above the adapter groove, the needle cap body is limited and fixed. The two cooperate with each other, the clamping process is unobstructed, and the limiting is more stable.
[0019] Compared with the prior art, the beneficial effects of this utility model are: by controlling the cylinder through the exhaust throttle valve to drive the first and second grippers to clamp the needle cap body, the opening and clamping actions are realized. During the clamping process, the structure of the first and second grippers, in combination with the structure of the needle cap body, ensures stable clamping when the needle cap body is removed, preventing it from falling. The clamping operation is flexible and standardized, preventing infection and increasing efficiency.
[0020] Other features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of an overall structure in one embodiment of the present utility model;
[0022] Figure 2 This is a schematic diagram of the cylinder structure in an embodiment of this utility model;
[0023] Figure 3 This is an enlarged view of the card slot structure in an embodiment of this utility model;
[0024] Figure 4 This is a schematic diagram of the adapter groove structure in an embodiment of this utility model.
[0025] The figures are labeled as follows: 1. Slide; 2. Cover plate; 3. Suction device body; 4. First gripper; 5. Second gripper; 6. Needle cap body; 7. Cylinder; 8. Rotary shaft; 9. Exhaust throttle valve; 10. First protrusion; 11. Second protrusion; 12. Slot; 13. Adaptor slot. Detailed Implementation
[0026] 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.
[0027] Reference Figure 1 , Figure 2 and Figure 3 In this embodiment, the needle cap clamping structure for removing the cap from the drug dispensing applicator includes an applicator body 3, a slide 1, and a cover plate 2 disposed on one side of the slide 1. The bottom side of the applicator body 3 is provided with a needle cap body 6, and it also includes:
[0028] The clamping mechanism includes a cylinder 7 located inside the cover plate 2. Two exhaust throttle valves 9 are provided on one outer wall of the cylinder 7. Two rotating shafts 8 are provided on the inner wall of the cylinder 7. A first gripper 4 and a second gripper 5 are respectively provided on the outer circumference of the two rotating shafts 8. The needle cap body 6 is located between the first gripper 4 and the second gripper 5.
[0029] The limiting mechanism is adapted to the needle cap body 6.
[0030] Specifically, in this solution, the cylinder 7 is controlled by the exhaust throttle valve 9 to drive the first gripper 4 and the second gripper 5 to rotate around the rotating shaft 8, thereby realizing the opening and gripping action. Then, during the opening of the first gripper 4 and the second gripper 5, the suction device body 3 is placed in, so that the needle cap body 6 is located between the first gripper 4 and the second gripper 5. Then, the needle cap body 6 is clamped by the gripping action.
[0031] It should be noted that this solution is used to hold the needle cap body 6 when removing and returning the cap to the aspirator body 3 during the drug preparation process of the tumor machine. In this process, the needle cap body 6 is first removed before the aspirator body 3 injects the liquid. At this time, the first gripper 4 and the second gripper 5 continuously hold the needle cap body 6. After the aspirator body 3 has finished injecting the liquid and preparing the drug, the needle cap body 6 needs to be returned to prevent the liquid from dripping from the needle tip and causing contamination, thus preventing infection. The operation is standardized and more efficient.
[0032] In this embodiment, the first gripper 4 and the second gripper 5 are symmetrically arranged.
[0033] The first gripper 4 and the second gripper 5 are completely symmetrical structures. When they open and grip on both sides of the needle cap body 6, they move in unison, without causing errors, and better grip the needle cap body 6, ensuring stable gripping.
[0034] In this embodiment, both the first gripper 4 and the second gripper 5 are used in conjunction with the needle cap body 6.
[0035] The first gripper 4 and the second gripper 5 are used to hold the needle cap body 6. During the removal and repositioning of the needle cap body 6, the first gripper 4 and the second gripper 5 can continuously hold the needle cap body 6 with a tight fit. Compared with the traditional method of laying the needle cap body 6 flat, which allows the needle to enter the needle cap body 6 first and then moving the needle to move the needle of the aspirator body 3 forward, which is prone to leakage and infection, the first gripper 4 and the second gripper 5 of this solution keep the needle cap body 6 in a vertical clamping state, which can stably clamp the needle and prevent leakage, making it safer.
[0036] Reference Figure 2 , Figure 3 and Figure 4In this embodiment, the limiting mechanism includes adapter grooves 13 respectively opened on the outer walls of the first gripper 4 and the second gripper 5 on opposite sides. The inner wall of the adapter groove 13 near the top has a slot 12. The needle cap body 6 is located between the two adapter grooves 13. The outer circumferential wall of the needle cap body 6 is provided with a first protrusion 10 and a second protrusion 11 respectively. The first protrusion 10 is located at the top of the adapter groove 13, and the second protrusion 11 is located between the two slots 12.
[0037] Specifically, the first gripper 4 and the second gripper 5 each have an adapter groove 13 on their opposite sides, and a slot 12 is formed in the adapter groove 13. The needle cap body 6 of the suction device body 3 is provided with a first protrusion 10 and a second protrusion 11. When the first gripper 4 and the second gripper 5 clamp the needle cap body 6, the second protrusion 11 is limited in the slot 12, and the upper ends of the first gripper 4 and the second gripper 5 are just locked with the first protrusion 10 to prevent the needle cap body 6 from falling, and the clamping operation is flexible.
[0038] In this embodiment, the card slot 12 is configured as an annular groove, and the second protrusion 11 is adapted to the card slot 12.
[0039] The slots 12 are symmetrically arranged inside the adapter slots 13. The annular groove-shaped slots 12 allow the first gripper 4 and the second gripper 5 to adapt to the shape of the second protrusion 11 when gripping the needle cap body 6, so that the second protrusion 11 is limited in the slots 12, thereby limiting and fixing the needle cap body 6.
[0040] In this embodiment, the size of the first protrusion 10 is larger than the size of the adapter groove 13, and the first protrusion 10 is located at the top of the first gripper 4 and the second gripper 5.
[0041] While the first gripper 4 and the second gripper 5 are clamping the needle cap body 6, the first protrusion 10 is located at the top of the two grippers. Because it is larger than the size of the adapter groove 13, the first protrusion 10 is limited above the adapter groove 13. Together with the second protrusion 11, it is limited inside the slot 12, so that the needle cap body 6 is fixedly positioned. When the first protrusion 10 is above the first gripper 4 and the second gripper 5, the aspirator body 3 is easier to remove the cap, and the recapping process is easier to align, making the operation more convenient.
[0042] In this embodiment, the needle cap body 6 is adapted to the adapter groove 13.
[0043] The two adapter slots 13 adapt to the needle cap body 6 during the clamping process, fit against the outer side of the needle cap body 6, and clamp and fix the needle cap body 6. They cooperate with each other and the clamping process is unobstructed.
[0044] Working principle:
[0045] The cylinder 7, controlled by the exhaust throttle valve 9, rotates the first gripper 4 and the second gripper 5 around the rotating shaft 8, achieving the opening and gripping action, thereby clamping the needle cap body 6 located between the first gripper 4 and the second gripper 5. During this process, the first gripper 4 and the second gripper 5 are completely symmetrical structures, with an adapter groove 13 on each side of the two grippers. A slot 12 is provided in the adapter groove 13. The needle cap body 6 of the aspirator body 3 has a first protrusion 10 and a second protrusion 11. When the first gripper 4 and the second gripper 5 clamp the needle cap body 6, the slot 12 matches the second protrusion 11, and the upper ends of the two grippers are locked onto the first protrusion 10 to prevent the needle cap body 6 from falling. After the aspirator body 3 removes the cap for injection and drug preparation, it is then put back on. During this period, the first gripper 4 and the second gripper 5 continuously clamp the needle cap body 6.
[0046] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A needle cap clamping structure for removing the cap from a drug dispensing applicator, comprising an applicator body (3), a slide (1), and a cover plate (2) disposed on one side of the slide (1), wherein a needle cap body (6) is provided on the bottom side of the applicator body (3), characterized in that, Also includes: The clamping mechanism includes a cylinder (7) disposed inside the cover plate (2), two exhaust throttle valves (9) are provided on one side of the outer wall of the cylinder (7), two rotating shafts (8) are provided on the inner wall of the cylinder (7), and a first clamping claw (4) and a second clamping claw (5) are respectively provided on the outer circumference of the two rotating shafts (8), and the needle cap body (6) is located between the first clamping claw (4) and the second clamping claw (5); A limiting mechanism is adapted to the needle cap body (6).
2. The needle cap clamping structure for removing the cap from a drug dispensing device according to claim 1, characterized in that, The first gripper (4) and the second gripper (5) are symmetrically arranged.
3. The needle cap clamping structure for removing the cap from a drug dispensing applicator according to claim 2, characterized in that, Both the first gripper (4) and the second gripper (5) are used in conjunction with the needle cap body (6).
4. The needle cap clamping structure for removing the cap from a drug dispensing applicator according to claim 1, characterized in that, The limiting mechanism includes adapter grooves (13) respectively provided on the outer walls of the first gripper (4) and the second gripper (5) on opposite sides. The adapter grooves (13) have a slot (12) on the inner wall near the top. The needle cap body (6) is located between the two adapter grooves (13).
5. The needle cap clamping structure for removing the cap from a drug dispensing applicator according to claim 4, characterized in that, The outer circumferential wall of the needle cap body (6) is provided with a first protrusion (10) and a second protrusion (11). The first protrusion (10) is located at the top of the adapter groove (13), and the second protrusion (11) is located between the two slots (12).
6. The needle cap clamping structure for removing the cap from a drug dispensing applicator according to claim 5, characterized in that, The slot (12) is configured as an annular groove, and the second protrusion (11) is adapted to the slot (12).
7. The needle cap clamping structure for removing the cap from a drug dispensing applicator according to claim 6, characterized in that, The size of the first protrusion (10) is larger than the size of the adapter groove (13), and the first protrusion (10) is located at the top of the first gripper (4) and the second gripper (5).
8. The needle cap clamping structure for removing the cap from a drug dispensing device according to claim 7, characterized in that, The needle cap body (6) is adapted to the adapter groove (13).