Safety type infusion apparatus breaking scissors

By designing a safety infusion set disconnector with an interlocking handle and alloy plate structure, the safety hazard caused by the sharpness of existing infusion set scissors has been solved, enabling safe cutting operations in suicidal patients and in vibrating environments, thus improving the safety of use.

CN223989544UActive Publication Date: 2026-03-13THE NINTH MEDICAL CENTER OF THE GENERAL HOSPITAL OF THE PEOPLES LIBERATION ARMY OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

The existing infusion set scissors are sharp and pose a safety hazard, especially in patients with suicidal tendencies and in vibrating environments, where they could easily injure patients and medical staff.

Method used

A safety-type infusion set disconnector was designed, featuring an interlocking handle and alloy plate structure with a built-in cutting edge. The infusion tubing is cut by interlocking the handles, and there is no external sharp edge. Combined with a spring return and limit mechanism, safety is ensured.

Benefits of technology

It improves safety during use, reduces safety hazards caused by misuse or vibration, and protects the safety of patients and medical staff.

✦ Generated by Eureka AI based on patent content.

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Abstract

A first handle and a second handle are connected in a staggered mode, a first connecting ring is fixed to the upper end of the first handle in a welded mode, a second connecting ring is arranged at the upper end of the second handle, and the second connecting ring and the first connecting ring are attached in an overlapped mode. Round holes are formed in the first connecting ring and the second connecting ring, rotating shafts are arranged in the round holes, the first handle and the second handle are connected through the rotating shafts to swing, a first alloy plate is arranged on the inner side of the first handle, a second alloy plate is arranged on the inner side of the second handle, and the first alloy plate and the second alloy plate are attached and provided with through grooves. A cutting edge is arranged on the inner side of the through groove. Compared with the prior art, no sharp cutting edge is arranged on the outer portion of the cutting shear structure, the only sharp cutting edge is arranged on the inner side of the through groove and cannot be exposed outside to injure people, safety is greatly improved during use, and potential safety hazards caused by misuse of a patient or a medical worker to the patient or other people are effectively reduced.
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Description

Technical Field

[0001] This utility model relates to the field of medical device accessories for introducing or delivering media into or onto the human body, specifically a safety infusion set disconnector. Background Technology

[0002] An infusion set is a common medical device that is sterilized and used to establish a channel between a vein and a medication for intravenous infusion therapy. An infusion set generally consists of several parts, including but not limited to an intravenous needle or injection needle, needle cap, infusion tubing, medication filter, flow regulator, drip chamber, stopper puncture device, and air filter. Some infusion sets may also be equipped with additional functional components such as injection ports and medication dispensing ports.

[0003] Currently, most infusion set cutters are made with ordinary household scissors. For easy access, these scissors are usually hung on the walls of hospital wards or nurses' stations. Because the tips of these scissors are quite sharp, they pose a safety hazard. If a patient is depressed or has suicidal tendencies, they can easily reach the scissors, posing a serious threat to their own safety and that of medical staff. Furthermore, in air medical rescue operations such as mission support, war, and various disasters, helicopters are often indispensable for transporting the wounded. The helicopter's engine and rotor are subject to aerodynamic forces, causing vibrations and turbulence. In such situations, ordinary household scissors are more likely to accidentally injure medical personnel on board, posing a significant safety risk. Therefore, this application proposes a safe infusion set cutter to address the aforementioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a safe infusion set disconnecting shear to address the problems mentioned in the background art, such as the fact that household scissors used to cut infusion tubes are sharp at the tip, posing a serious threat to the safety of patients and medical staff, thus easily creating safety hazards, and that helicopters are more likely to accidentally injure medical staff on board during vibrations and turbulence, posing a significant safety hazard.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model of a safety infusion set disconnector includes a first handle and a second handle, which are alternately connected;

[0007] Also includes:

[0008] A first connecting ring is welded to the upper end of a first handle. A second connecting ring is provided at the upper end of a second handle, and the second connecting ring overlaps and fits with the first connecting ring. Both the first and second connecting rings have circular holes inside, and a rotating shaft is provided inside the circular holes. The first and second handles are connected by the rotating shaft to swing. A first alloy plate is provided on the inner side of the first handle, and a second alloy plate is provided on the inner side of the second handle. The first and second alloy plates are fitted together and both have through grooves. A cutting edge is provided on the inner side of the through groove.

[0009] The present invention relates to a safety infusion set disconnector, wherein a mounting plate is provided on the outer edge of the second handle, and a spring is provided between the first handle and the second handle, with the two ends of the spring respectively fixed to the mounting plate and the inner side of the first handle.

[0010] This utility model relates to a safety infusion set disconnector. The inner side of the second handle is provided with a second connecting plate, and the inner side of the first handle is provided with a first connecting plate. A limit rod is provided on one side of the surface of the second connecting plate. The surface of the first connecting plate is integrally formed with a groove, and the limit rod is slidably engaged inside the groove.

[0011] The present invention relates to a safety infusion set disconnector, wherein a threaded hole is provided inside one side of the second connecting plate, and a first screw is provided at one end of the limiting rod and the first screw is threadedly connected to the threaded hole.

[0012] This utility model relates to a safety infusion set disconnector, wherein the rotating shaft has a connecting hole inside, a second screw is connected inside the connecting hole, and a nut is connected to the other end of the second screw.

[0013] The present invention relates to a safety infusion set disconnector, wherein both the first handle and the bottom of the second handle are provided with handles.

[0014] The present invention relates to a safety infusion set disconnector, wherein the handle is covered with an anti-slip rubber sleeve.

[0015] Compared with the prior art, the safety infusion set disconnector of this utility model has at least the following beneficial effects:

[0016] 1. The safety infusion set disconnector of this application comprises two handles, a first handle and a second handle. Two alloy plates are installed on the inner side of each handle, with a through groove in the center of each plate. A cutting edge is formed on one side of each through groove. An infusion tube with a needle is inserted into the through groove, and the two handles are squeezed to cause the two alloy plates and two through grooves to interlock, thus causing the cutting edges on both sides to interlock and disconnect the infusion tube from the needle. After cutting, a spring returns, allowing the two handles to separate again and the two through grooves to overlap again. The disconnector structure of this application has no sharp cutting edge on the outside; the only sharp cutting edge is located on the inner side of the through groove, preventing it from being exposed and causing injury. This greatly improves safety during use and effectively reduces safety hazards to oneself or others due to misuse by patients or medical personnel. Furthermore, it can also protect medical personnel on board medical rescue helicopters during vibration and turbulence, improving safety and reducing safety risks.

[0017] 2. The safety infusion set disconnector of this application has a first connecting plate and a second connecting plate respectively between two sets of handles. The surface of the first connecting plate is provided with a sliding groove, and the surface of the second connecting plate is provided with a limiting rod adapted to the sliding groove. The limiting rod slides and engages inside the sliding groove, which can limit the opening and closing degree between the two sets of handles, and prevent the two sets of handles from opening and closing too much under the action of the spring and being unable to return to their original state. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the safety infusion set disconnector of this utility model;

[0019] Figure 2 This is a front view of the overall structure of the safety infusion set disconnector of this utility model;

[0020] Figure 3 This is a top-view partial cross-sectional view of the overall structure of the safety infusion set disconnector of this utility model;

[0021] Figure 4 This is a top sectional view of the connecting plate of the safety infusion set disconnector of this utility model;

[0022] Reference numerals: 1. First handle; 2. Second handle; 3. First connecting ring; 4. Second connecting ring; 5. Second alloy plate; 6. First alloy plate; 7. Through groove; 8. Cutting edge; 9. Spring; 10. Mounting plate; 11. Handle; 12. Second connecting plate; 13. First connecting plate; 14. Slide groove; 15. Limiting rod; 16. Threaded hole; 17. First screw; 18. Rotating shaft; 19. Second screw; 20. Nut; 21. Round hole; 22. Connecting hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figure 1-4 This utility model provides an embodiment of a safety infusion set disconnector, comprising a first handle 1 and a second handle 2, which are alternately connected. Both the first handle 1 and the second handle 2 have a handle 11 at their bottom for easy closing by hand. Preferably, the handle 11 is covered with a non-slip rubber sleeve. A first connecting ring 3 is welded to the upper end of the first handle 1, and a second connecting ring 4 is provided at the upper end of the second handle 2, overlapping and fitting with the first connecting ring 3. Both the first connecting ring 3 and the second connecting ring 4 have a circular hole 21 inside, and a rotating shaft 18 is provided inside the circular hole 21. The first handle 1 and the second handle 2 are connected by the rotating shaft 18 for swinging. The rotating shaft 18 has a connecting hole 22 inside, and a second screw 19 is connected inside the connecting hole 22. The other end of the second screw 19 is connected to a nut 20, axially fixing the connection between the first connecting ring 3 and the second connecting ring 4. The inner side of the first handle 1 is provided with a first alloy plate 6, and the inner side of the second handle 2 is provided with a second alloy plate 5. The first alloy plate 6 and the second alloy plate 5 are attached to each other, and both the first alloy plate 6 and the second alloy plate 5 are provided with through grooves 7. The inner side of the through grooves 7 is provided with cutting edges 8.

[0025] When in use, insert the infusion tube with the needle into the through groove 7, hold the two handles with your hands, and make the two sets of alloy plates (i.e., the first alloy plate 6 and the second alloy plate 5) and the two sets of through grooves 7 intersect each other until the cutting edges 8 on both sides intersect and cut the infusion tube, separating the infusion tube from the needle. After cutting, release your hands, and the spring 9 will return the two sets of handles to their original positions.

[0026] Please see Figure 1 , Figure 2 The outer edge of the second handle 2 is provided with a mounting plate 10. A spring 9 is provided between the first handle 1 and the second handle 2. The two ends of the spring 9 are fixed to the mounting plate 10 and the inner side of the first handle 1, respectively. The spring 9 is used to close the two sets of handles and then reset them. Since the two sets of handles are staggered, the mounting plate 10 can be provided to facilitate the placement of the spring 9 between the two sets of handles.

[0027] Please see Figure 2 , Figure 4The second handle 2 has a second connecting plate 12 on its inner side, and the first handle 1 has a first connecting plate 13 on its inner side. A limiting rod 15 is provided on one side of the surface of the second connecting plate 12. A sliding groove 14, adapted to the limiting rod 15, is integrally formed on the surface of the first connecting plate 13. The limiting rod 15 slides and engages inside the sliding groove 14, limiting the opening and closing degree between the two sets of handles. Preferably, a threaded hole 16 is provided inside one side of the second connecting plate 12, and a first screw 17 is provided at one end of the limiting rod 15. The first screw 17 is threadedly connected to the threaded hole 16, facilitating the removal of the limiting rod 15.

[0028] The working principle of this utility model safety infusion set disconnect cutter is as follows: When in use, first insert the infusion tube with the needle into the two through slots 7, and hold the two handles 11 by hand so that the two sets of gold plates and the two sets of through slots 7 gradually intersect. The cutting edges 8 on both sides intersect to cut the infusion tube, realizing the separation of the infusion tube and the needle. After separation, release your hand, and the first handle 1 and the second handle 2 will return to their original positions under the rebound force of the spring 9, so that the two through slots 7 overlap again.

[0029] 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.

Claims

1. A safety infusion device cutting scissors, comprising a first handle (1) and a second handle (2), the first handle (1) and the second handle (2) are staggered connected; characterized in that Further comprising: A first connecting ring (3) is fixed on the upper end of the first handle (1) by welding, the upper end of the second handle (2) is provided with a second connecting ring (4) which is overlapped with the first connecting ring (3), the inside of the first connecting ring (3) and the second connecting ring (4) are provided with a round hole (21), the inside of the round hole (21) is provided with a rotating shaft (18), the first handle (1) and the second handle (2) are connected by the rotating shaft (18) to swing, the inside of the first handle (1) is provided with a first alloy plate (6), the inside of the second handle (2) is provided with a second alloy plate (5), the first alloy plate (6) and the second alloy plate (5) are overlapped and are provided with a through slot (7), the inside of the through slot (7) is provided with a cutting edge (8).

2. The safety infusion set disconnection scissors according to claim 1, wherein: The outside edge of the second handle (2) is provided with a mounting plate (10), the first handle (1) and the second handle (2) are provided with a spring (9) and the both ends of the spring (9) are fixed on the inside of the mounting plate (10) and the first handle (1) respectively.

3. The safety infusion set disconnection scissors according to claim 2, wherein: The inside of the second handle (2) is provided with a second connecting plate (12), the inside of the first handle (1) is provided with a first connecting plate (13), the surface of the second connecting plate (12) is provided with a limiting rod (15), the surface of the first connecting plate (13) is integrally provided with a sliding groove (14) and the limiting rod (15) is slidingly engaged in the inside of the sliding groove (14).

4. The safety infusion set disconnection scissors of claim 3, wherein: The inside of the second connecting plate (12) is provided with a threaded hole (16), one end of the limiting rod (15) is provided with a first screw rod (17) and the first screw rod (17) is threadedly connected with the threaded hole (16).

5. The safety infusion set disconnection scissors of claim 4, wherein: The inside of the rotating shaft (18) is provided with a connecting hole (22), the inside of the connecting hole (22) is connected with a second screw rod (19), the other end of the second screw rod (19) is connected with a nut (20).

6. The safety infusion set disconnection scissors according to any one of claims 1-5, wherein: The bottom of the first handle (1) and the second handle (2) is provided with a handle (11).

7. The safety infusion set disconnection scissors of claim 6, wherein: The outside of the handle (11) is provided with an anti-skid rubber sleeve.