Sterile tampon applicator

Abstract

The utility model provides a kind of sterile pressure plug sampling with forceps, belong to forceps technical field, technical scheme is, a kind of sterile pressure plug sampling with forceps, including two first forceps handle, the rear end fixed connection of two first forceps handle and overall is V-shaped structure, the top of first forceps handle is provided with press handle, the rear end of press handle is fixedly connected with the rear end of first forceps handle, the front end of press handle is inclined to extend upwards relative to the length direction of first forceps handle, forms pressure plug part, pressure plug part is located the top of first forceps handle front end, and the size of pressure plug part and rubber plug top is compatible, can realize the coverage to rubber plug top.The utility model has the beneficial effect that, the device can realize the even pressure plug of rubber plug, and then ensure that rubber plug is tightly pressed.

Description

Technical Field

[0001] This utility model belongs to the field of tweezers technology, specifically relating to a sterile stopper sampling tweezers. Background Technology

[0002] In the production and quality control of sterile lyophilized products in the pharmaceutical industry, sterility is a core requirement, especially in the sampling stage of pre-stopped products during lyophilization, where the rubber stopper must be compacted and sealed before sample extraction. When handling these products with sterile isolator gloves, not only is insufficient precision due to glove thickness, leading to accidental contact with critical sealing areas such as the bottle opening or rubber stopper, but sample contamination can also occur due to minute impurities remaining on the glove surface or sterilization dead zones. Therefore, it is essential to rely on sterilized specialized tweezers as the operating medium, which avoids direct contact between human hands and critical areas while ensuring operational accuracy through the characteristics of the tool.

[0003] As shown in the patent publication number CN217398402U, the tweezers consist of two gripping arms. One end of each arm is fixedly connected to form a fixed end, while the other end is a free end, together forming a gripping part for gripping rubber stoppers. To accommodate rubber stoppers with rubber stopper rings, the gripping part adopts a multi-opening design, specifically including an arc-shaped front opening and at least one arc-shaped side opening. The front opening is formed at the free end of the gripping part, and the side opening is formed on the side wall of the gripping part. The arc-shaped portion of the opening makes linear contact with the outer periphery of the rubber stopper ring, which can achieve a stable gripping of the rubber stopper by increasing friction, effectively preventing the rubber stopper from slipping or falling off during the gripping process.

[0004] However, the small area at the tip of the tweezers' gripping arm means that when the operator uses it to press the rubber stopper to achieve compression, the small contact area will directly lead to uneven force on the rubber stopper. Different areas of the rubber stopper will experience large differences in pressure, and some areas will not be able to fit tightly against the mouth of the molded bottle due to insufficient pressure, resulting in the rubber stopper not being compressed, which poses a risk of contamination to aseptic sampling. Utility Model Content

[0005] This invention addresses the problem that existing tweezers are difficult to apply evenly to rubber stoppers, resulting in incomplete sealing. It provides a sterile tweezer for sealing and sampling, which can achieve uniform sealing of rubber stoppers and thus ensure tight sealing.

[0006] To solve the above problems, the technical solution adopted by this utility model is a sterile pressure-stopping sampling forceps, including two first forceps handles. The rear ends of the two first forceps handles are fixedly connected and have an overall V-shaped structure. A pressing handle is provided above the first forceps handles. The rear end of the pressing handle is fixedly connected to the rear end of the first forceps handles. The front end of the pressing handle extends upward at an angle relative to the length direction of the first forceps handle to form a pressure-stopping part. The pressure-stopping part is located above the front end of the first forceps handle, and the size of the pressure-stopping part is adapted to the top of the rubber stopper, so as to achieve coverage of the top of the rubber stopper.

[0007] In this technical solution, the rear ends of the two first tweezer handles are fixedly connected and form an overall V-shaped structure. A pressing handle is provided on top of the handle, and the rear end of the pressing handle is fixedly connected to the rear end of the first tweezer handle. The front end extends upward relative to the length of the first tweezer handle to form a pressing part. This pressing part is located above the front end of the first tweezer handle and is adapted to the size of the top of the rubber stopper, completely covering the top of the rubber stopper. In use, the front ends of the two first tweezer handles can cooperate to clamp the mouth of the molded bottle. When the rubber stopper is in a semi-pressed state, pressing the pressing handle will cause the pressing part at its front end to contact the top of the rubber stopper. By fully covering the top of the rubber stopper and applying uniform pressure, the rubber stopper is tightly pressed against the mouth of the molded bottle. Therefore, this device can achieve uniform pressing of the rubber stopper, thereby ensuring a tight stopper.

[0008] Furthermore, the cross-section of the stopper is circular, and the bottom surface of the stopper slopes in the same direction as the angled extension of the pressing handle. The bottom surface of the stopper aligns perfectly with and tightly fits the top of the stopper. The circular cross-section prevents sharp edges or corners from appearing on the stopper, avoiding scratching or squeezing the top of the stopper during compression and preventing damage. The alignment of the bottom surface of the stopper with the angled extension of the pressing handle ensures that the downward pressure applied by the pressing handle acts perpendicularly to the top of the stopper along the bottom surface of the stopper, preventing lateral force. If the slopes were mismatched, the pressure would easily be biased to one side, causing the stopper to shift during compression. Combined with the perfectly aligned design, the pressure from the stopper fully covers the top of the stopper, preventing any areas from being unloaded. This results in uniform deformation of the stopper and a tight seal with the bottle neck, reducing gaps caused by uneven pressure.

[0009] Furthermore, the angle between the extension direction of the pressing handle and the length direction of the first tweezer handle is 15° to 90°. This angle range can accommodate the hand grip posture of different operators, avoiding both excessive bending of the fingers when pressing due to an angle that is too small and the need to apply extra force when pressing due to an angle that is too large. This makes the pressing action more in line with the hand's force application habits and reduces the likelihood of hand discomfort with long-term use.

[0010] Furthermore, a first fixing rod is fixed to the inner wall of the front end of each first tweezer handle, and a first fixing clip is fixed to the free end of the first fixing rod away from the corresponding first tweezer handle. The first fixing rod offsets the first fixing clip from the inner wall of the front end of the first tweezer handle by a certain distance, so that the fixing clip can be accurately aligned with the clamping position of the molded bottle mouth, and then the bottle mouth is clamped by the cooperation of the two fixing clips.

[0011] Furthermore, each first tweezer handle is provided with a connecting handle and a second tweezer handle below it. The upper end of the connecting handle is fixedly connected to the corresponding first tweezer handle, and the lower end of the connecting handle is fixedly connected to the rear end of the corresponding second tweezer handle. The second tweezer handle is arranged parallel to the first tweezer handle along its length, and the front end of the second tweezer handle is flush with the front end of the corresponding first tweezer handle. The connecting handle directly and fixedly connects the first and second tweezer handles. When the first tweezer handle is pinched, the force is directly and without delay transmitted to the second tweezer handle through the connecting handle, so that the first and second tweezer handles open and close simultaneously. This prevents the first tweezer handle from clamping the bottle mouth while the second tweezer handle fails to clamp the bottle body simultaneously, avoiding the bottle body from tilting due to uneven force, and laying the foundation for accurate alignment during subsequent capping.

[0012] Furthermore, a second fixing rod is fixed to the inner wall of the front end of each second tweezer handle, and a second fixing clip is fixed to the free end of the second fixing rod away from the corresponding second tweezer handle. The second fixing rod offsets the second fixing clip from the inner wall of the front end of the second tweezer handle by a certain distance, so that the second fixing clip can be accurately aligned with the effective clamping area of ​​the bottle.

[0013] Furthermore, the two first fixing clips are arranged facing each other and are both arc-shaped, with the convex side of the first fixing clip fixedly connected to the corresponding first fixing rod; the two second fixing clips are also arranged facing each other and are both arc-shaped, with the convex side of the second fixing clip fixedly connected to the corresponding second fixing rod. The arc-shaped first and second fixing clips allow their concave surfaces to naturally conform to the circular contours of the bottle mouth and body. Compared to flat clamping, the arc-shaped structure increases the contact area with the bottle body, allowing the clamping force to be distributed more evenly on the bottle surface, reducing the risk of slippage. Simultaneously, the facing arrangement creates a symmetrical encircling space, ensuring that even with slight differences in bottle diameter, the arc-shaped concave surfaces can tightly enclose the bottle, preventing localized suspension during clamping. The facing arrangement ensures that the clamping forces of the two clips are on the same straight line and in opposite directions, creating a balanced clamping effect and preventing the bottle from tilting or tipping due to force offset. The arc-shaped design eliminates sharp corners, and combined with symmetrical force distribution, it avoids localized pressure concentration.

[0014] Furthermore, the radius of the first clamp is adapted to the outer circumference of the bottle mouth, and the radius of the second clamp is adapted to the outer circumference of the bottle body. The adaptation of the first clamp's radius to the bottle mouth's outer circumference and the second clamp's radius to the bottle body's outer circumference means that the concave surface of the clamp can perfectly conform to the circular curved surface of the bottle body, like a custom-made groove enveloping the bottle, rather than a general, partial contact with a curved surface. This seamless fit maximizes the clamping contact area, significantly increasing the static friction between the clamp and the bottle body, completely avoiding bottle slippage and displacement caused by partial suspension due to size mismatch. This is especially effective in operations requiring axial force, such as corking, where the bottle position is firmly locked.

[0015] Furthermore, the first fixing rod is longer than the second fixing rod. The longer first fixing rod allows for a smaller gap between the two first fixing clips, perfectly fitting the neck of a molded bottle with a smaller diameter; the shorter second fixing rod allows for a larger gap between the two second fixing clips, perfectly matching the bottle body with a larger diameter. This design, with a long rod for a narrow gap and a short rod for a wide gap, ensures that the first fixing clip firmly grips the bottle neck and the second fixing clip fits snugly against the bottle body, avoiding problems caused by a mismatch between the fixing clip spacing and the bottle diameter, thus structurally adapting to the differences in the bottle's overall diameter.

[0016] Furthermore, each first forceps handle has a first anti-slip texture on its outer side wall, and a second anti-slip texture on the top surface of the pressing handle. The first forceps handle is the core component directly gripped by the hand, and sterile gloves are often made of smooth materials. The first anti-slip texture on the outer side wall directly increases the friction between the glove and the first forceps handle surface, preventing relative slippage between them during gripping. The pressing handle requires pressure applied by the fingers wearing sterile gloves to control its movement. The second anti-slip texture on its top surface specifically addresses the issue of smooth contact surfaces between the sterile glove and the pressing handle.

[0017] As can be seen from the above embodiments, the beneficial effects of this utility model are as follows: 1. Stable clamping of molded bottles, adapted to the bottle body structure, through the first and second tweezer handles that are parallel to each other, combined with the arc-shaped first and second fixing clips that are adapted to the radius of the bottle mouth and bottle body, and the design of the long first fixing rod forming a narrow gap to clamp the bottle mouth and the short second fixing rod forming a wide gap to clamp the bottle body, firmly fixes the bottle body and avoids shaking and displacement when pressing the stopper; 2. To achieve uniform pressure on the rubber stopper and ensure a good seal, the pressure part is matched to the top of the rubber stopper and fully covers it. The circular cross-section has no sharp edges to prevent the rubber stopper from breaking. When pressing, the pressure is transmitted vertically without lateral force, ensuring that the rubber stopper deforms evenly and presses tightly against the bottle mouth, reducing sealing gaps. 3. Adapted to aseptic operation and improved operational stability: The first anti-slip texture on the outer side of the first forceps handle, the second anti-slip texture on the top of the pressing handle, and the pressing handle angle of 15° to 90° solve the problem of smoothness of sterile gloves, making it easy to hold and press, and avoiding slippage that affects the clamping and pressure effect. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model.

[0020] In the figure: 1. First tweezer handle; 11. First fixing rod; 12. First fixing clip; 13. First anti-slip texture; 2. Pressing handle; 21. Pressing plug; 22. Second anti-slip texture; 3. Connecting handle; 4. Second tweezer handle; 41. Second fixing rod; 42. Second fixing clip. Detailed Implementation

[0021] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0022] A type of sterile pressure-stopping sampling forceps, such as Figure 1 As shown, it includes two first tweezer handles 1, the rear ends of the two first tweezer handles 1 are fixedly connected and the whole is in a V-shape; a pressing handle 2 is provided above the first tweezer handle 1, the rear end of the pressing handle 2 is fixedly connected to the rear end of the first tweezer handle 1, the front end extends upward at an angle relative to the length direction of the first tweezer handle 1, and the angle between the extension direction of the pressing handle 2 and the length direction of the first tweezer handle 1 is 15° to 90°; the two first tweezer handles 1 and the pressing handle 2 are integrally processed.

[0023] In this specific embodiment, each first tweezer handle 1 has a first anti-slip texture 13 on its outer side wall, and the first anti-slip texture 13 is located near the rear end of the first tweezer handle 1; the top upper surface of the pressing handle 2 has a second anti-slip texture 22, and the second anti-slip texture 22 is located near the rear end of the pressing handle 2.

[0024] The front end of the pressing handle 2 extends upward at an angle relative to the length of the first tweezer handle 1, forming a pressing part 21. This pressing part 21 is located above the front end of the first tweezer handle 1, and is adapted to the size of the top of the rubber stopper, thus covering the top of the rubber stopper. In this specific embodiment, the pressing part 21 is a circular plate with a circular cross-section, the diameter of which is larger than the diameter of the top of the rubber stopper. The bottom surface of the pressing part 21 is inclined in the same direction as the inclined extension direction of the pressing handle 2, so that it can be directly opposite to and tightly fitted to the top of the rubber stopper. When the pressing handle 2 is pressed until the bottom surface of the pressing part 21 contacts the top of the rubber stopper, the top of the rubber stopper and the bottom surface of the pressing part 21 are exactly parallel.

[0025] Each first tweezer handle 1 has a first fixing rod 11 fixed to its inner front wall. A first fixing clip 12 is fixed to the free end of the first fixing rod 11 away from the corresponding first tweezer handle 1. The first fixing rod 11, the first fixing clip 12 and the corresponding first tweezer handle 1 are integrally machined. The two first fixing clips 12 are arranged facing each other and are both arc-shaped. The convex side of the first fixing clip 12 is fixedly connected to the corresponding first fixing rod 11. The arc radius of the first fixing clip 12 is adapted to the outer circumference radius of the bottle mouth of the molded bottle, and the concave side can completely fit the outer circumference of the bottle mouth of the molded bottle, ensuring that the first fixing clip 12 can clamp the bottle mouth of the molded bottle.

[0026] Each first tweezer handle 1 is provided with a connecting handle 3 and a second tweezer handle 4 below it. The connecting handle 3 is set perpendicular to the first tweezer handle 1, and its upper end is fixedly connected to the corresponding first tweezer handle 1, and its lower end is fixedly connected to the rear end of the corresponding second tweezer handle 4. The second tweezer handle 4 is set parallel to the first tweezer handle 1 along the length direction of the first tweezer handle 1, and the front end of the second tweezer handle 4 is flush with the front end of the corresponding first tweezer handle 1. The connecting handle 3, the second tweezer handle 4 and the corresponding first tweezer handle 1 are integrally processed.

[0027] Each second tweezer handle 4 has a second fixing rod 41 fixed to its inner front wall. A second fixing clip 42 is fixed to the free end of the second fixing rod 41 away from the corresponding second tweezer handle 4. The second fixing rod 41, the second fixing clip 42, and the corresponding second tweezer handle 4 are integrally machined. The two second fixing clips 42 are arranged facing each other and are both arc-shaped. The convex side of the second fixing clip 42 is fixedly connected to the corresponding second fixing rod 41. The arc radius of the second fixing clip 42 matches the outer circumference radius of the molded bottle body, and the concave side can completely fit the outer circumference of the molded bottle body, ensuring that the second fixing clip 42 can clamp the molded bottle body. Furthermore, the length of the second fixing rod 41 is less than the length of the first fixing rod 11. This design allows the first fixing clip 12 to firmly clamp the bottle mouth and the second fixing clip 42 to firmly clamp the bottle body, avoiding the inability to clamp the bottle mouth or body due to a mismatch between the clamp spacing and the bottle diameter. This achieves simultaneous clamping of the bottle mouth and body when the first tweezer handle 1 is pinched.

[0028] The working process is as follows: After being freeze-dried in a freeze dryer, the molded bottles have their stoppers in a semi-compressed state, meaning the stoppers are partially embedded in the bottle neck but not fully pressed in. During the molded bottle clamping and stopper pressing operations... First, the staff wears sterile gloves and holds the rear ends of the two first tweezer handles 1. Then, they adjust the angle of the tweezers and align the first fixing clip 12 at the front end of the first tweezer handle 1 with the outer periphery of the bottle mouth. At the same time, they align the second fixing clip 42 at the front end of the second tweezer handle 4 with the lower middle part of the bottle body.

[0029] Next, the workers apply opposing pinching forces to the rear ends of the two first tweezer handles 1. As the pinching force is applied, the front ends of the two first tweezer handles 1 gradually move closer together, causing the first fixing clamps 12 to cooperate in clamping the mouth of the molded bottle. Simultaneously, the closing action of the first tweezer handles 1 is transmitted synchronously to the second tweezer handles 4 via the connecting handle 3, causing the front ends of the two second tweezer handles 4 to move closer together, thereby causing the second fixing clamps 42 to cooperate in clamping the body of the molded bottle. Through the double clamping of the bottle mouth by the first fixing clamps 12 and the bottle body by the second fixing clamps 42, the molded bottle is firmly fixed, preventing any shaking, shifting, or detachment during subsequent movement of the molded bottle.

[0030] Finally, after clamping and securing the molded bottle, the operator presses the rear end of the pressing handle 2 with their fingers, typically the thumb or forefinger. As pressure is applied, the pressing handle 2, using its fixed connection point with the rear end of the first tweezer handle 1 as a fulcrum, gradually moves downwards. Simultaneously, the pressing part 21 at the front end of the pressing handle 2 moves downwards and gradually approaches the top of the stopper. When the bottom surface of the pressing part 21 contacts the top of the stopper, pressure is continued to be applied. The pressing part 21 applies uniform downward pressure to the top of the stopper, pushing the stopper from a semi-pressed state to gradually and completely press it into the mouth of the molded bottle, ultimately achieving a tight stopper and ensuring the sealing effect of the molded bottle.

[0031] As can be seen from the above embodiments, the beneficial effects of this utility model are as follows: 1. Stable clamping of molded bottles, adapted to the bottle body structure, through the first and second tweezer handles that are parallel to each other, combined with the arc-shaped first and second fixing clips that are adapted to the radius of the bottle mouth and bottle body, and the design of the long first fixing rod forming a narrow gap to clamp the bottle mouth and the short second fixing rod forming a wide gap to clamp the bottle body, firmly fixes the bottle body and avoids shaking and displacement when pressing the stopper; 2. To achieve uniform pressure on the rubber stopper and ensure a good seal, the pressure part is matched to the top of the rubber stopper and fully covers it. The circular cross-section has no sharp edges to prevent the rubber stopper from breaking. When pressing, the pressure is transmitted vertically without lateral force, ensuring that the rubber stopper deforms evenly and presses tightly against the bottle mouth, reducing sealing gaps. 3. Adapted to aseptic operation and improved operational stability: The first anti-slip texture on the outer side of the first forceps handle, the second anti-slip texture on the top of the pressing handle, and the pressing handle angle of 15° to 90° solve the problem of smoothness of sterile gloves, making it easy to hold and press, and avoiding slippage that affects the clamping and pressure effect.

[0032] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A sterile pressure-stopping sampling forceps, comprising two first forceps handles (1), the rear ends of the two first forceps handles (1) being fixedly connected and forming an overall V-shaped structure, characterized in that, A pressing handle (2) is provided above the first tweezer handle (1). The rear end of the pressing handle (2) is fixedly connected to the rear end of the first tweezer handle (1). The front end of the pressing handle (2) extends upward in the length direction relative to the first tweezer handle (1) to form a pressing part (21). The pressing part (21) is located above the front end of the first tweezer handle (1), and the pressing part (21) is adapted to the size of the top of the rubber stopper, so as to achieve coverage of the top of the rubber stopper.

2. The aseptic stoppered sampling forceps according to claim 1, characterized in that, The cross-section of the pressure stopper (21) is circular. The bottom surface of the pressure stopper (21) is inclined in the same direction as the inclined extension direction of the pressing handle (2). The bottom surface of the pressure stopper (21) can be directly opposite to and tightly fitted to the top of the rubber stopper.

3. The aseptic stoppered sampling forceps according to claim 1, characterized in that, The angle between the extension direction of the pressing handle (2) and the length direction of the first tweezer handle (1) is 15° to 90°.

4. The aseptic stoppered sampling forceps according to claim 1, characterized in that, Each first tweezer handle (1) has a first fixing rod (11) fixed on the inner side wall of its front end, and a first fixing clip (12) is fixed on the free end of the first fixing rod (11) away from the corresponding first tweezer handle (1).

5. The aseptic stopper sampling forceps according to claim 4, characterized in that, Each first tweezer handle (1) is provided with a connecting handle (3) and a second tweezer handle (4) below it. The upper end of the connecting handle (3) is fixedly connected to the corresponding first tweezer handle (1), and the lower end of the connecting handle (3) is fixedly connected to the rear end of the corresponding second tweezer handle (4). The second tweezer handle (4) is arranged parallel to the first tweezer handle (1) along the length direction of the first tweezer handle (1), and the front end of the second tweezer handle (4) is flush with the front end of the corresponding first tweezer handle (1).

6. The aseptic stopper sampling forceps according to claim 5, characterized in that, A second fixing rod (41) is fixed to the inner side wall of the front end of each second tweezer handle (4), and a second fixing clip (42) is fixed to the free end of the second fixing rod (41) away from the corresponding second tweezer handle (4).

7. The aseptic stopper sampling forceps according to claim 6, characterized in that, Two first fixing clips (12) are arranged facing each other and are both arc-shaped. The convex side of the first fixing clip (12) is fixedly connected to the corresponding first fixing rod (11). Two second fixing clips (42) are also arranged facing each other and are both arc-shaped. The convex side of the second fixing clip (42) is fixedly connected to the corresponding second fixing rod (41).

8. The aseptic stopper sampling forceps according to claim 7, characterized in that, The arc radius of the first fixing clip (12) is adapted to the outer circumference radius of the bottle mouth of the molded bottle, and the arc radius of the second fixing clip (42) is adapted to the outer circumference radius of the bottle body of the molded bottle.

9. The aseptic stopper sampling forceps according to claim 8, characterized in that, The length of the first fixing rod (11) is greater than the length of the second fixing rod (41).

10. The aseptic stopper sampling forceps according to claim 1, characterized in that, Each first tweezer handle (1) has a first anti-slip texture (13) on its outer side wall, and a second anti-slip texture (22) is provided on the top upper surface of the pressing handle (2).

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