Glass ampoule cutting forceps

Abstract

The application provides a glass ampoule cutting forceps, and belongs to the technical field of medical instruments, and specifically comprises a forceps mouth and a forceps handle, the forceps mouth comprises two oppositely arranged semi-ring-shaped rings, an arc-shaped sliding groove is arranged in the semi-ring-shaped ring, an arc-shaped sliding block is arranged in the arc-shaped sliding groove, a through groove communicating with the sliding groove is arranged on the inner side wall of the semi-ring-shaped ring, an arc-shaped mounting plate penetrating through the through groove and sliding along the through groove is arranged on the inner ring of the arc-shaped sliding block, a cutting piece is mounted on the inner ring of the arc-shaped mounting plate, the cutting piece protrudes out of the inner ring of the arc-shaped mounting plate along the radial direction of the arc-shaped mounting plate, and the width of the through groove is smaller than the maximum width of the arc-shaped sliding groove; the arc-shaped sliding block is located in the half region of the semi-ring-shaped ring away from the hinge point of the cutting forceps, and the included angle between the two lines connecting the center positions of the two cutting pieces on the same arc-shaped mounting plate and the axis of the semi-ring-shaped ring is 90°. Through the processing scheme, the cutting effect of the ampoule bottle and the application range of the cutting forceps are improved.

Description

Technical Field

[0001] This application relates to the field of medical devices, and in particular to a glass ampoule cutting forceps. Background Technology

[0002] Currently, injectable medications packaged in glass ampoules are widely used in hospitals. Medical staff need to cut the neck of the glass ampoule to make it easier to break before drawing the medication. However, in practice, it has been found that medical staff often use small grinding wheels to repeatedly rub the glass ampoule neck with their bare hands, which is inefficient and carries the risk of the ampoule breaking due to excessive force, potentially contaminating the medication and injuring medical staff. Utility Model Content

[0003] In view of this, this application provides a glass ampoule cutting pliers, which solves the problems in the prior art, improves the cutting effect of ampoule bottles and the applicability of the cutting pliers.

[0004] The glass ampoule cutting pliers provided in this application adopt the following technical solution:

[0005] A glass ampoule cutting pliers includes jaws and handles. The two handles are hinged to the jaws. The handles control the jaws to open and close. The jaws include two opposing semi-annular rings. Each semi-annular ring has an arc-shaped groove inside. An arc-shaped slider is placed in the arc-shaped groove. The inner wall of each semi-annular ring has a through groove that connects to the groove. An arc-shaped mounting plate is provided on the inner ring of the arc-shaped slider, passing through the through groove and sliding along the through groove. A cutting blade is mounted on the inner ring of the arc-shaped mounting plate. The cutting blade protrudes from the inner ring of the arc-shaped mounting plate in the radial direction. The width of the through groove is less than the maximum width of the arc-shaped groove.

[0006] The arc-shaped slider is located in the half-area of ​​the semi-circular ring away from the hinge point of the cutting pliers, and the angle between the two lines connecting the center positions of the two cutting blades on the same arc-shaped mounting plate and the axis of the semi-circular ring is 90°.

[0007] Optionally, the inner ring sidewall of the arc-shaped mounting plate is provided with a slot extending outward in the radial direction, the cutting blade is located in the slot, and the cutting blade is mounted on the arc-shaped mounting plate by screws.

[0008] Optionally, the arc-shaped groove and the arc-shaped mounting plate are arc-shaped, and the arc-shaped groove, the arc-shaped mounting plate and the semi-annular ring are coaxially arranged.

[0009] Optionally, the arc-shaped sliding groove passes through the mating end faces of the two semi-annular rings, and the arc-shaped sliding block is provided with a limiting post extending along the axial direction of the semi-annular ring. The side of the semi-annular ring perpendicular to the axial direction of the semi-annular ring is provided with an arc-shaped limiting groove. The arc-shaped limiting groove and the arc-shaped sliding groove are connected. The arc-shaped limiting groove is located in half of the arc-shaped sliding groove on the side away from the cutting pliers hinge point. When the limiting post abuts against the end of the arc-shaped limiting groove near the cutting pliers hinge point, the arc-shaped mounting plate is located within the arc length range of the semi-annular ring.

[0010] Optionally, the semi-annular ring has an arc-shaped groove on its side perpendicular to the axial direction of the semi-annular ring, located on the inner and outer sides of the arc-shaped limiting groove. The side of the arc-shaped groove that is away from the limiting groove is connected to the side of the limiting groove. The end of the limiting post is located in the arc-shaped groove.

[0011] Optionally, one end of the arc-shaped slider is aligned with the end of the arc-shaped mounting plate away from the cutting pliers hinge point. The central angle of the arc-shaped slider is one-quarter to one-half of the central angle of the arc-shaped mounting plate. The central angle of the arc-shaped mounting plate is 160 to 180°. When the ends of the limiting post and the arc-shaped limiting groove near the cutting pliers hinge point abut, the circumferential centers of the arc-shaped mounting plate and the semi-annular ring are aligned in the radial direction.

[0012] Optionally, the arc-shaped mounting plate is provided with an arc-shaped extension edge, the thickness of which is less than the width of the through groove, and the arc-shaped extension edge and the outer ring of the arc-shaped slider are circular.

[0013] Optionally, the semi-annular ring includes an arc-shaped rigid structure and a flexible buffer pad located at the end of the arc-shaped rigid structure away from the cutting pliers hinge point.

[0014] In summary, this application includes the following beneficial technical effects:

[0015] In this application, the jaws are opened, and the neck of the ampoule to be cut is positioned between two arc-shaped mounting plates. The jaws are closed by controlling the handles. Four cutting blades on the two arc-shaped mounting plates gradually approach the ampoule until the cutting blades contact the position to be cut on the ampoule. The ampoule is kept still, and the handles are rotated 90 to 100 degrees, or the handles are kept still, and the ampoule is rotated 90 to 100 degrees, to complete the cutting of the entire circle of the ampoule by the cutting blades, thereby improving cutting efficiency and the integrity of the cutting marks.

[0016] In this application, the arc-shaped mounting plate is mounted on the semi-circular ring via an arc-shaped groove and an arc-shaped slider, allowing the arc-shaped mounting plate to be removed from the semi-circular ring. By replacing the arc-shaped mounting plate with different inner diameters and arc-shaped sliders, ampoules of different sizes can be cut. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the glass ampoule cutting pliers of this application;

[0019] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle;

[0020] Figure 3 This is a schematic diagram of the glass ampoule cutting pliers device used in this application;

[0021] Figure 4 This is a structural diagram illustrating the assembly and disassembly process of the arc-shaped mounting plate in this application;

[0022] Figure 5 This is a structural schematic diagram of the arc-shaped mounting plate, arc-shaped slider, and limiting post of this application.

[0023] Explanation of reference numerals in the attached diagram: 1. Pliers handle; 2. Pliers jaw; 3. Semi-circular ring; 31. Arc-shaped groove; 32. Through groove; 33. Arc-shaped limiting groove; 34. Arc-shaped recess; 4. Arc-shaped slider; 5. Arc-shaped mounting plate; 51. Slot; 52. Arc-shaped extension edge; 6. Cutting disc; 7. Limiting post; 8. Ampoule. Detailed Implementation

[0024] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0025] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0027] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0028] Furthermore, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that the described aspects can be practiced without these specific details.

[0029] This application provides a glass ampoule cutting pliers.

[0030] like Figures 1 to 3 As shown, a glass ampoule cutting pliers includes jaws 2 and handles 1. The handles 1 consist of two handles. The jaws 2 include two opposing semi-circular rings 3. Each handle 1 is connected to each semi-circular ring 3. The two handles 1 and jaws 2 are hinged at the connection point. The handles 1 are controlled to drive the jaws 2 to open and close. When the jaws 2 are closed, the two semi-circular rings 3 are joined together to form a continuous ring.

[0031] The semi-annular ring 3 has an arc-shaped groove 31 inside, and an arc-shaped slider 4 is placed in the arc-shaped groove 31. The inner sidewall of the semi-annular ring 3 has a through groove 32 that connects to the groove. The inner ring of the arc-shaped slider 4 has an arc-shaped mounting plate 5 that passes through the through groove 32 and slides along the through groove 32. A cutting blade 6 is mounted on the inner ring of the arc-shaped mounting plate 5. The cutting blade 6 protrudes from the inner ring of the arc-shaped mounting plate 5 in the radial direction. The width of the through groove 32 is less than the maximum width of the arc-shaped groove 31. The angle between the two lines connecting the center positions of the two cutting blades 6 on the same arc-shaped mounting plate 5 and the axis of the semi-annular ring 3 is 90°.

[0032] In this application, the jaws 2 are opened, and the neck of the ampoule 8 to be cut is positioned between two arc-shaped mounting plates 5. The jaws 2 are closed by controlling the handle 1. The four cutting blades 6 on the two arc-shaped mounting plates 5 gradually approach the ampoule 8 until the cutting blades 6 contact the position to be cut on the ampoule 8. The ampoule 8 is kept still, and the handle 1 is rotated 90 to 100 degrees, or the handle 1 is kept still, and the ampoule 8 is rotated 90 to 100 degrees, thus completing the cutting of the ampoule 8 around its entire circumference by the cutting blades 6, improving cutting efficiency and the integrity of the cutting marks.

[0033] In this application, the arc-shaped mounting plate 5 is mounted on the semi-annular ring 3 via the arc-shaped groove 31 and the arc-shaped slider 4, so that the arc-shaped mounting plate 5 can be removed from the semi-annular ring 3. By replacing the arc-shaped mounting plate 5 with different inner diameters and arc-shaped sliders 4, ampoules 8 of different sizes can be cut.

[0034] When cutting the ampoule 8, the medical staff squeezes the handle 1, and the cutting blade 6 presses against the ampoule 8. At the same time, the arc-shaped slider 4 presses against the arc-shaped groove 31. Relying on the friction between the arc-shaped slider 4 and the arc-shaped groove 31, the arc-shaped mounting plate 5 can generally remain stationary relative to the semi-circular ring 3, ensuring the relative displacement between the cutting blade 6 and the ampoule 8, so as to achieve the cutting of the ampoule 8.

[0035] It should be noted that during the closing of the jaws 2, when the cutting blade 6 initially contacts the ampoule 8, there is a gap between the end faces of the two semi-annular rings 3. As the cutting blade 6 rotates to cut the ampoule 8, the gap between the end faces of the two semi-annular rings 3 gradually decreases. In one embodiment, it can also be designed so that the end faces of the two annular rings abut each other at the end of the cutting to limit the cutting depth.

[0036] like Figure 4 and Figure 5 As shown in the embodiment of this application, considering the maximum opening and closing angle of the jaws 2, the arc-shaped slider 4 is located in the half area of ​​the semi-circular ring 3 away from the hinge point of the cutting pliers. With this design, it is not necessary to rotate the arc-shaped mounting plate 5 about half a circle 180° to remove the arc-shaped mounting plate 5 and the arc-shaped sliding groove 31. It is only necessary to rotate the shorter arc-shaped slider 4 out of the arc-shaped sliding groove 31, and then it is not necessary to slide the arc-shaped mounting plate 5 along the circumference to remove the arc-shaped mounting plate 5 and the arc-shaped sliding groove 31. This reduces the requirement for the opening and closing angle of the jaws 2, reduces design limitations, and also improves the efficiency of replacing the arc-shaped mounting plate 5.

[0037] The arc-shaped slide 31 and the arc-shaped mounting plate 5 are arc-shaped, and the arc-shaped slide 31, the arc-shaped mounting plate 5 and the semi-annular ring 3 are coaxially arranged.

[0038] The arc-shaped sliding groove 31 penetrates the mating end face of the two semi-annular rings 3. The two arc-shaped sliding blocks 4 are provided with limiting posts 7 extending along the axial direction of the semi-annular rings 3. The two semi-annular rings 3 are provided with arc-shaped limiting grooves 33 on their sides perpendicular to the axial direction of the semi-annular rings 3. The arc-shaped limiting grooves 33 and the arc-shaped sliding groove 31 are connected. The arc-shaped limiting grooves 33 are located in half of the arc-shaped sliding groove 31 on the side away from the cutting pliers hinge point. When the limiting post 7 abuts against the end of the arc-shaped limiting groove 33 near the cutting pliers hinge point, the arc-shaped mounting plate 5 is located within the arc length range of the semi-annular rings 3.

[0039] In this embodiment, limiting posts 7 are provided on both sides of the arc-shaped slider 4, and arc-shaped limiting grooves 33 are provided on both sides of the semi-annular ring 3. The design of the arc-shaped limiting grooves 33 and the limiting posts 7 positions the arc-shaped mounting plate 5 for installation and limits the displacement of the arc-shaped mounting plate 5 relative to the semi-annular ring 3 during the cutting process, thereby improving the stability of the cutting blade 6 in cutting the ampoule 8.

[0040] One end of the arc-shaped slider 4 is aligned with the end of the arc-shaped mounting plate 5 away from the cutting pliers hinge point. The central angle of the arc-shaped slider 4 is one-quarter to one-half of the central angle of the arc-shaped mounting plate 5. The central angle of the arc-shaped mounting plate 5 is 160 to 180°. When the ends of the limiting post 7 and the arc-shaped limiting groove 33 near the cutting pliers hinge point abut, the circumferential centers of the arc-shaped mounting plate 5 and the semi-annular ring 3 are aligned in the radial direction.

[0041] The semi-annular ring 3 has an arc-shaped groove 34 on its side perpendicular to the axial direction of the semi-annular ring 3, located on the inner and outer sides of the arc-shaped limiting groove 33. The side of the arc-shaped groove 34 that is away from the limiting groove 31 is connected to the limiting groove. The end of the limiting post 7 is located in the arc-shaped groove 34. When disassembling the arc-shaped mounting plate 5, the operator can place their finger in the arc-shaped groove 34 and press the end of the limiting post 7 in the arc-shaped groove 34. By applying force to the limiting post 7, the arc-shaped slider 4 and the arc-shaped mounting plate 5 can be easily moved along the arc-shaped sliding groove 31, improving the efficiency of disassembling the arc-shaped mounting plate 5.

[0042] The arc-shaped mounting plate 5 is provided with an arc-shaped extension edge 52. The thickness of the arc-shaped extension edge 52 is less than the width of the through groove 32. The arc-shaped extension edge 52 and the outer circle of the arc-shaped slider 4 are concentric. In this embodiment, the thickness of the arc-shaped extension edge 52 and the arc-shaped mounting plate 5 are the same. Since the arc-shaped slider 4 does not cover the entire arc-shaped groove 31, the arc-shaped extension edge 52 compensates for the part where the arc-shaped slider 4 is not provided, ensuring that the circumferential force of the arc-shaped mounting plate 5 is uniform.

[0043] The semi-annular ring 3 includes an arc-shaped rigid structure and a flexible buffer pad located at the end of the arc-shaped rigid structure away from the hinge point of the cutting pliers. The arc length of the combined structure of the arc-shaped rigid structure and the flexible buffer pad in its natural state is slightly greater than that of a semicircle. The design of the flexible buffer pad can avoid the risk of excessive impact force on the ampoule 8 caused by the rapid contact of the two semi-annular rings 3 when the jaws 2 are closed, thus preventing the ampoule 8 from breaking. It should be noted that the thickness design of the flexible buffer pad must take into account that when the flexible buffer pad on the two semi-annular rings 3 is compressed to its limit, it can ensure that the cutting blade can form a sufficiently deep scratch on the ampoule 8.

[0044] The inner sidewall of the arc-shaped mounting plate 5 is provided with a slot 51 extending outward in the radial direction. The cutting disc 6 is partially located in the slot 51 and is mounted on the arc-shaped mounting plate 5 by screws.

[0045] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A glass ampoule cutting pliers, comprising jaws (2) and handles (1), wherein the two handles (1) and jaws (2) are hinged at the connection point, and the handles (1) are controlled to drive the jaws (2) to open and close, characterized in that, The clamp (2) includes two opposing semi-annular rings (3). The semi-annular rings (3) have an arc-shaped groove (31) inside. An arc-shaped slider (4) is located in the arc-shaped groove (31). The inner wall of the semi-annular rings (3) has a through groove (32) that connects to the groove. The inner ring of the arc-shaped slider (4) has an arc-shaped mounting plate (5) that passes through the through groove (32) and slides along the through groove (32). A cutting blade (6) is mounted on the inner ring of the arc-shaped mounting plate (5). The cutting blade (6) protrudes from the inner ring of the arc-shaped mounting plate (5) in the radial direction. The width of the through groove (32) is less than the maximum width of the arc-shaped groove (31). Among them, the arc-shaped slider (4) is located in the half area of ​​the semi-circular ring (3) away from the cutting pliers hinge point, and the angle between the two lines connecting the center positions of the two cutting blades (6) on the same arc-shaped mounting plate (5) and the axis of the semi-circular ring (3) is 90°.

2. The glass ampoule cutting pliers according to claim 1, characterized in that, The inner sidewall of the arc-shaped mounting plate (5) is provided with a slot (51) extending outward in the radial direction. The cutting blade (6) is partially located in the slot (51). The cutting blade (6) is mounted on the arc-shaped mounting plate (5) by screws.

3. The glass ampoule cutting pliers according to claim 1, characterized in that, The arc-shaped groove (31) and the arc-shaped mounting plate (5) are arc-shaped, and the arc-shaped groove (31), the arc-shaped mounting plate (5) and the semi-circular ring (3) are coaxially arranged.

4. The glass ampoule cutting pliers according to claim 3, characterized in that, The arc-shaped slide groove (31) passes through the mating end face of the two semi-annular rings (3). The arc-shaped slider (4) is provided with a limiting post (7) extending along the axial direction of the semi-annular ring (3). The semi-annular ring (3) is provided with an arc-shaped limiting groove (33) on the side perpendicular to the axial direction of the semi-annular ring (3). The arc-shaped limiting groove (33) and the arc-shaped slide groove (31) are connected. The arc-shaped limiting groove (33) is located in half of the arc-shaped slide groove (31) away from the cutting pliers hinge point. When the limiting post (7) abuts against the end of the arc-shaped limiting groove (33) near the cutting pliers hinge point, the arc-shaped mounting plate (5) is located within the arc length range of the semi-annular ring (3).

5. The glass ampoule cutting pliers according to claim 4, characterized in that, The semi-annular ring (3) has an arc-shaped groove (34) on its side perpendicular to the axial direction of the semi-annular ring (3) and located on the inner and outer sides of the arc-shaped limiting groove (33). The arc-shaped groove (34) is connected to the side of the limiting groove away from the arc-shaped slide groove (31). The end of the limiting post (7) is located in the arc-shaped groove (34).

6. The glass ampoule cutting pliers according to claim 4, characterized in that, One end of the arc-shaped slider (4) is aligned with the end of the arc-shaped mounting plate (5) away from the cutting pliers hinge point. The central angle of the arc-shaped slider (4) is one-quarter to one-half of the central angle of the arc-shaped mounting plate (5). The central angle of the arc-shaped mounting plate (5) is 160 to 180°. When the ends of the limiting post (7) and the arc-shaped limiting groove (33) near the cutting pliers hinge point abut, the circumferential centers of the arc-shaped mounting plate (5) and the semi-circular ring (3) are aligned in the radial direction.

7. The glass ampoule cutting pliers according to claim 6, characterized in that, The arc-shaped mounting plate (5) is provided with an arc-shaped extension edge (52), the thickness of which is less than the width of the through groove (32), and the outer circle of the arc-shaped extension edge (52) and the arc-shaped slider (4) are circular.

8. The glass ampoule cutting pliers according to claim 1, characterized in that, The semi-circular ring (3) includes an arc-shaped rigid structure and a flexible buffer pad located at the end of the arc-shaped rigid structure away from the hinge point of the cutting pliers.

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