Medical safety protection type ampoule bottle opener
By integrating the opening ring, the arc-shaped frame, and the grinding wheel with an adaptive scratch design and lever system, the occupational exposure and breakage risks of ampoule openers during operation are solved, enabling safe and labor-saving ampoule opening operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- THE FIRST AFFILIATED HOSPITAL OF CHONGQING MEDICAL UNIVERSITY
- Filing Date
- 2026-03-26
- Publication Date
- 2026-05-01
AI Technical Summary
Existing ampoule openers pose occupational exposure risks during operation, are incompatible with ampoules of different diameters and lengths, are not ergonomically sound, and pose risks of glass breakage and drug contamination.
A medical safety ampoule opener was designed, which integrates an opening ring, an arc frame and a grinding wheel. It achieves adaptive scratching through a spring-slide bar mechanism and uses a lever system of gripping plate and flipping ring to break the ampoule evenly, avoiding direct contact and splashing.
It effectively prevents glass breakage and liquid splashing, reduces occupational exposure risks, ensures consistent scratch depth, is easy to operate and adaptable to ampoules of different diameters, and improves continuous work efficiency.
Smart Images

Figure CN121948352A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of openers, specifically relating to a medical safety-protective ampoule opener. Background Technology
[0002] In medical care and pharmaceutical preparation, ampoules, as a common small-volume liquid medication packaging container, have long presented significant occupational exposure risks during opening. Traditionally, medical personnel rely on a grinding wheel to cut the neck of the ampoule and then break it by hand. This method has several hidden dangers: First, uneven force or insufficient depth of the scratch during manual breaking can easily lead to accidental breakage, producing glass shards or splashing medication, which not only contaminates the medication but may also cause cuts to the operator. Second, the sudden change in internal pressure upon opening the ampoule may cause glass fragments to scatter, increasing the risk of eye or skin injuries to medical personnel. Third, if the medication is cytotoxic (such as chemotherapy drugs) or a highly allergenic preparation, direct exposure to air may pose potential health hazards to medical personnel through respiratory or skin contact. Furthermore, some ampoules have smooth surfaces and come in various sizes, making them prone to slipping during manual handling, further increasing the difficulty and risk of opening them.
[0003] While some ampoule opening aids exist in the existing technology, such as fixed openers or simple devices with grinding wheel structures, the following shortcomings remain: First, most tools have poor adaptability and are difficult to use with ampoules of different diameters and lengths; second, the operation process is still not ergonomic enough, especially when opening multiple ampoules consecutively, which can easily lead to hand fatigue; third, most tools fail to effectively integrate anti-slip structures and evenly distributed breaking mechanisms, still posing a risk of glass breakage or drug contamination. Therefore, improvements to the existing technology are needed. Summary of the Invention
[0004] The purpose of this invention is to provide a medical safety ampoule opener that solves the problem that existing openers can easily cause injury to medical personnel when opening ampoules.
[0005] To achieve the above objectives, the present invention provides a medical safety ampoule opener, comprising an opening ring, a connecting ring fixedly installed at the lower end of the opening ring, a flipping ring mounted on the outer side of the connecting ring via a bearing, a central frame hinged to the outer side of the flipping ring, two symmetrically distributed gripping plates hinged to the outer side of the central frame, an arc-shaped frame slidably connected inside the groove of the opening ring, a grinding wheel fixedly installed inside the arc-shaped frame, a slide rod fixedly installed on the outer side of the arc-shaped frame, a push plate fixedly installed at the end of the slide rod away from the arc-shaped frame, and a spring provided on the outer side of the slide rod.
[0006] The principle of this invention is as follows: The user holds the central frame with one hand, placing their thumb and forefinger on the two gripping plates respectively, but not pinching them together. The user inserts the neck of the ampoule from below into the channel formed by the opening ring and connecting ring until the top of the neck touches the curved frame or reaches a suitable position. Using the other hand or relying on their body to stabilize the push plate, the user then rotates the ampoule. Because the push plate is fixed, the curved frame connected to it via a sliding rod and the grinding wheel fixed thereon remain stationary relative to the opening ring under the preload of the spring. The rotation of the ampoule causes its neck to rub against the sharp grinding wheel, thus creating a complete, uniformly deep circular scratch on the neck. The spring allows the grinding wheel and the curved frame to float within a certain range to adapt to slight differences in the bottle diameter, ensuring the scratching effect.
[0007] After scratching, keep the ampoule in the opener's position. The user pinches the two gripping plates together with the hand holding the center frame towards the palm. The gripping plates rotate around their hinge point with the center frame, and through leverage, the pinching force is transmitted to the center frame, causing the center frame to drive the hinged flip ring and connecting ring to move downwards as a whole. Since the opening ring is fixedly installed on the connecting ring, when the connecting ring is subjected to a downward force, the entire opening ring will apply a smooth, vertical breaking force downwards along with the scratched ampoule neck. At this time, the ampoule body is stably held by the user's other hand or by the anti-slip plate, forming a relatively fixed point. Under the opposite forces in the up and down directions, the ampoule breaks cleanly along the pre-scratched lines, thus completing the entire opening process.
[0008] The beneficial effects of this invention are as follows:
[0009] 1. This invention, through the integrated design of the opening ring, arc-shaped frame, and grinding wheel, completely confines scratching and breaking operations within the annular space, fundamentally avoiding direct contact between medical personnel's fingers and the bottle, effectively preventing scratches caused by accidental glass breakage or shards. Simultaneously, this sealed structure prevents splashing of medication or glass shards, greatly reducing the risk of exposure to toxic or highly allergenic drugs. Furthermore, the anti-slip strips on the inner side of the grip plate and the anti-slip pads on the central frame provide multiple layers of anti-slip protection, ensuring stable operation even in wet conditions or when wearing gloves, eliminating secondary hazards caused by slipping.
[0010] 2. This invention utilizes a lever system comprised of a gripping plate, a central frame, and a flipping ring to transform easy pinching force into concentrated and uniform breaking force. This makes operation effortless and ensures a clean break surface on the bottle neck. The grinding wheel is floatingly mounted to the arc-shaped frame via a spring-slide mechanism, automatically adapting to ampoules of different diameters to ensure consistent and continuous scratch depth. After operation, the mechanism automatically resets under the action of the spring, improving the efficiency of continuous work. The overall structure is compact, integrating scratching, clamping, and breaking functions into one unit. It is highly versatile and very suitable for fast-paced clinical environments.
[0011] Furthermore, the gripping plate has multiple evenly distributed anti-slip strips fixedly installed inside, and multiple evenly distributed anti-slip grooves are provided on the outer side of the anti-slip strips. The anti-slip grooves can effectively increase the frictional resistance of the anti-slip strips.
[0012] Furthermore, an anti-slip plate is fixedly installed on the outer side of the central frame. The anti-slip plate is made of anti-slip rubber material and can increase the friction between the central frame and the ampoule.
[0013] Furthermore, the grinding wheel is arc-shaped, and the arc surface of the grinding wheel fits into the arc surface of the arc frame, allowing the arc surface of the grinding wheel to better fit the groove of the ampoule.
[0014] Furthermore, one end of the spring is fixedly connected to the opening ring, and the other end of the spring is fixedly connected to the push plate. The spring can support the push plate with its elastic force.
[0015] Furthermore, a rubber cover is fixedly installed on the outer side of the opening ring. The rubber cover contacts the push plate. The rubber cover can increase the friction of pressing, making the grip more stable.
[0016] Furthermore, there are multiple sliding rods, which are evenly distributed on the outer side of the arc-shaped frame. These multiple sliding rods can enhance the load-bearing capacity of the arc-shaped frame. Attached Figure Description
[0017] Figure 1 The overall three-dimensional structure of the medical safety protective ampoule opener according to an embodiment of the present invention. Figure 1 ;
[0018] Figure 2 The overall three-dimensional structure of the medical safety protective ampoule opener according to an embodiment of the present invention. Figure 2 ;
[0019] Figure 3 This invention relates to a medical safety-protective ampoule opener. Figure 1 A three-dimensional sectional view;
[0020] Figure 4 This invention relates to a medical safety-protective ampoule opener. Figure 1 A three-dimensional view of the local structure;
[0021] Figure 5 This invention relates to a medical safety-protective ampoule opener. Figure 1 A 3D view of the gripper plate;
[0022] Figure 6 This invention relates to a medical safety-protective ampoule opener. Figure 1 A three-dimensional view of the central frame;
[0023] Figure 7 This invention relates to a medical safety-protective ampoule opener. Figure 1 A three-dimensional magnified view of the curved frame;
[0024] Figure 8 This invention relates to a medical safety-protective ampoule opener. Figure 3 Enlarged view of the structure of part A.
[0025] The reference numerals in the accompanying drawings include:
[0026] 1. Opening ring; 2. Connecting ring; 3. Flipping ring; 4. Center frame; 5. Grip plate; 6. Anti-slip strip; 61. Anti-slip groove; 7. Anti-slip sheet; 8. Curved frame; 9. Grinding wheel; 10. Slide rod; 11. Push plate; 12. Spring; 13. Rubber cover. Detailed Implementation
[0027] The following detailed description illustrates the specific implementation method:
[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, this embodiment provides a medical safety ampoule opener, including an opening ring 1. A connecting ring 2 is fixedly installed at the lower end of the opening ring 1. A flip ring 3 is installed on the outer side of the connecting ring 2 via a bearing. A central frame 4 is hinged to the outer side of the flip ring 3. Two symmetrically distributed gripping plates 5 are hinged to the outer side of the central frame 4. An arc-shaped frame 8 is slidably connected inside the groove of the opening ring 1. A grinding wheel 9 is fixedly installed inside the arc-shaped frame 8. A slide rod 10 is fixedly installed on the outer side of the arc-shaped frame 8. A push plate 11 is fixedly installed at the end of the slide rod 10 away from the arc-shaped frame 8. A spring 12 is provided on the outer side of the slide rod 10.
[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, multiple evenly distributed anti-slip strips 6 are fixedly installed inside the gripping plate 5. Multiple evenly distributed anti-slip grooves 61 are opened on the outer side of the anti-slip strips 6. The anti-slip grooves 61 can effectively increase the friction resistance of the anti-slip strips 6. An anti-slip plate 7 is fixedly installed on the outer side of the center frame 4. The anti-slip plate 7 is made of anti-slip rubber material. The anti-slip plate 7 can increase the friction between the center frame 4 and the ampoule. The grinding wheel 9 is arc-shaped. The arc surface of the grinding wheel 9 fits the arc surface of the arc frame 8. The arc surface of the grinding wheel 9 can fit the groove of the ampoule more closely.
[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, one end of the spring 12 is fixedly connected to the opening ring 1, and the other end of the spring 12 is fixedly connected to the push plate 11. The spring 12 can support the push plate 11 with its elastic force. A rubber cover 13 is fixedly installed on the outside of the opening ring 1. The rubber cover 13 contacts the push plate 11. The rubber cover 13 can increase the friction of pressing, making the grip more stable. There are multiple slide rods 10. The multiple slide rods 10 are evenly distributed on the outside of the arc frame 8. The multiple slide rods 10 can increase the force on the arc frame 8.
[0031] The specific implementation process of this invention is as follows: The user holds the central frame 4 with one hand, placing the thumb and forefinger on the two gripping plates 5 respectively, but not pinching them together. The user inserts the neck of the ampoule into the channel formed by the opening ring 1 and the connecting ring 2 from below until the top of the neck touches the curved frame 8 or reaches a suitable position. The user then uses the other hand or relies on their body to fix the push plate 11, and then rotates the ampoule. Because the push plate 11 is fixed, the curved frame 8 connected to it via the slide rod 10 and the grinding wheel 9 fixed thereon will remain stationary relative to the opening ring 1 under the preload of the spring 12. The rotation of the ampoule causes its neck to rub against the sharp grinding wheel 9, thus creating a complete, uniformly deep annular scratch on the neck. The spring 12 allows the grinding wheel 9 and the curved frame 8 to float within a certain range to adapt to slight differences in the bottle diameter, ensuring the scratching effect.
[0032] After the scratches are completed, keeping the ampoule in its original position within the opener, the user pinches the two gripping plates 5 together with the hand holding the central frame 4 towards the palm. The gripping plates 5 rotate around their hinge point with the central frame 4, transmitting the pinching force to the central frame 4 through leverage. This causes the central frame 4 to move the hinged flipping ring 3 and connecting ring 2 downwards as a whole. Since the opening ring 1 is fixedly mounted on the connecting ring 2, when the connecting ring 2 is subjected to a downward force, the entire opening ring 1, along with the scratched ampoule neck, applies a smooth, vertical breaking force downwards. At this point, the ampoule body is stably held by the user's other hand or by the anti-slip plate 7, forming a relatively fixed point. Under the opposing forces in the up and down directions, the ampoule breaks cleanly along the pre-marked lines, thus completing the opening process.
[0033] This invention, through the integrated design of the opening ring 1, the arc-shaped frame 8, and the grinding wheel 9, completely confines scratching and breaking operations within the annular space, fundamentally avoiding direct contact between medical personnel's fingers and the bottle, and effectively preventing scratches caused by accidental glass breakage or shards. Simultaneously, this sealed structure prevents splashing of medication or glass shards, greatly reducing the risk of exposure to toxic or highly allergenic drugs. Furthermore, the anti-slip strip 6 on the inner side of the grip plate 5 and the anti-slip plate 7 on the central frame 4 provide multiple layers of anti-slip protection, ensuring stable operation even in wet conditions or when wearing gloves, and eliminating secondary hazards caused by slipping.
[0034] This invention utilizes a lever system comprised of a gripping plate 5, a central frame 4, and a flipping ring 3 to transform easy pinching force into concentrated and uniform breaking force. This makes operation effortless and ensures a clean break surface on the bottle neck. The grinding wheel 9 is floatingly mounted to the arc-shaped frame 8 via a spring 12-slide bar 10 mechanism, automatically adapting to ampoules of different diameters and ensuring consistent and continuous scratch depth. After operation, the mechanism automatically resets under the action of the spring 12, improving the efficiency of continuous work. The overall structure is compact, integrating scratching, clamping, and breaking functions into one unit. It is highly versatile and very suitable for fast-paced clinical environments.
[0035] It should be noted in advance that, in this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0036] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.
Claims
1. A medical safety ampoule opener, comprising an opening ring, characterized in that: A connecting ring is fixedly installed at the lower end of the opening ring. A flipping ring is installed on the outer side of the connecting ring via a bearing. A central frame is hinged to the outer side of the flipping ring. Two symmetrically distributed gripping plates are hinged to the outer side of the central frame. An arc-shaped frame is slidably connected inside the groove of the opening ring. A grinding wheel is fixedly installed inside the arc-shaped frame. A slide rod is fixedly installed on the outer side of the arc-shaped frame. A push plate is fixedly installed at the end of the slide rod away from the arc-shaped frame. A spring is provided on the outer side of the slide rod.
2. The medical safety ampoule opener according to claim 1, characterized in that: The gripping plate has multiple evenly distributed anti-slip strips fixedly installed inside, and multiple evenly distributed anti-slip grooves are formed on the outer side of the anti-slip strips.
3. The medical safety ampoule opener according to claim 1, characterized in that: An anti-slip plate, made of anti-slip rubber material, is fixedly installed on the outer side of the central frame.
4. The medical safety ampoule opener according to claim 1, characterized in that: The grinding wheel is arc-shaped, and the arc surface of the grinding wheel fits into the arc surface of the arc frame.
5. The medical safety ampoule opener according to claim 1, characterized in that: One end of the spring is fixedly connected to the opening ring, and the other end of the spring is fixedly connected to the push plate.
6. The medical safety ampoule opener according to claim 1, characterized in that: A rubber cover is fixedly installed on the outside of the opening ring, and the rubber cover is in contact with the push plate.
7. The medical safety ampoule opener according to claim 1, characterized in that: The number of slide bars is multiple, and the multiple slide bars are evenly distributed on the outer side of the arc-shaped frame.