Portable sharp breaking device for syringe needle

Abstract

The invention relates to the field of medical waste treatment. The portable syringe needle sharp breaking device comprises a seat cylinder and a rotating cylinder which are arranged up and down, a center shaft is arranged in the center of the top of the seat cylinder, and the center shaft is arranged in a mounting hole in the center of the rotating cylinder in a penetrating mode and is in running fit with the rotating cylinder; one side of the rotary drum is provided with an imbedding vertical channel for the needle to be put in, and one side, corresponding to the imbedding vertical channel, of the seat drum is provided with a needle point vertical channel for the needle to be inserted in; shearing blades are arranged on the side walls of the lower end of the imbedding vertical channel and the upper end of the needle point vertical channel, and when the rotating cylinder and the seat cylinder rotate relatively, a needle body of the needle head and the needle point can be sheared off through the shearing blades; and the storage box is arranged at the bottom of the seat cylinder and is used for storing the sheared needle tip and the sheared needle body. The needle body and the needle tip of the needle head can be conveniently and rapidly cut off and separated, and the needle head is sharpened.

Description

Technical Field

[0001] This invention relates to the field of medical waste disposal, specifically to needle tip sharpening devices. Background Technology

[0002] Syringe needles are a large and difficult-to-handle type of medical waste. As sharp instruments, they come into contact with high-risk infectious agents such as human blood after puncture. Improper handling can easily lead to accidental punctures, injuries, and infections. Currently, the traditional method is to place needles in a dedicated sharps container and carefully collect and store them. In practice, we have found that the high risk of infection for syringe needles stems from their dual characteristics of puncture and blood-borne infectivity. Therefore, in actual handling, if the needle tip is sharpened using certain methods, the potential risks of accidental punctures and injuries can be eliminated or reduced. This would achieve a degree of separation or isolation of these two characteristics, significantly reducing the difficulty of needle handling and the susceptibility to hospital-acquired infections. However, sharpening the needle tip is a labor-intensive process, requiring consideration of not only ease of operation and reliability but also overall processing costs. Currently, there are no reports on suitable sharps-breaking instruments for medical personnel. Summary of the Invention

[0003] The purpose of this invention is to provide a portable syringe needle tip sharpener that can conveniently and quickly cut off the sharpness of the needle tip.

[0004] To achieve the above-mentioned objectives, the technical solution adopted by the present invention is: a portable syringe needle sharpener, comprising a seat and a rotating cylinder arranged vertically, wherein a central shaft is provided at the center of the top of the seat, and the central shaft passes through a mounting hole in the center of the rotating cylinder, forming a rotational engagement with the rotating cylinder;

[0005] One side of the rotating cylinder is provided with an insertion vertical channel for inserting the needle tip. The side of the seat cylinder corresponding to the insertion vertical channel is provided with a needle tip vertical channel for inserting the needle tip. The needle tip vertical channel is provided with a vertical channel limiting block that can support the needle tip. The vertical channel limiting block can be disengaged from the needle tip vertical channel under the drive of the drive component so that the cut needle tip can fall down. The other side of the seat cylinder is provided with a needle body vertical channel for the needle body to fall down after the needle tip is cut.

[0006] The sidewalls at the lower end of the insertion vertical channel and the upper end of the needle tip vertical channel are provided with shearing blades, which can cut the needle body and needle tip when the rotating cylinder and the seat cylinder rotate relative to each other.

[0007] It also includes a storage box installed at the bottom of the base to hold the cut needle tip and needle body.

[0008] Preferably, the top of the seat cylinder and the bottom of the needle tip vertical channel are provided with a top hole and a bottom hole, and a support platform is provided on the inner side wall; the needle body vertical channel is composed of a lifting cylinder that passes through the top hole and the support platform and forms a lifting cooperation with the seat cylinder.

[0009] A retaining ring is provided on the side wall of the lifting cylinder, and a first spring is provided on the lifting cylinder between the retaining ring and the support platform; when the first spring is in its natural state, the top of the lifting cylinder extends beyond the top surface of the seat cylinder.

[0010] The bottom surface of the rotating cylinder is a driving inclined surface that slopes downward from the side away from the insertion vertical channel toward the side closer to the insertion vertical channel. The driving inclined surface can press the lifting cylinder into the seat cylinder.

[0011] When the lifting cylinder is pressed into the seat cylinder, the drive assembly drives the vertical guide limit block to exit the needle tip vertical guide.

[0012] Preferably, a vertical plate is provided on the inner side wall at the center of the top of the seat cylinder, and a horizontal mounting hole is provided on the vertical plate. A T-shaped mounting seat is inserted into the mounting hole, and the mounting seat and the mounting hole are in a sliding fit. A second spring is provided between the T-shaped head of the mounting seat and the vertical plate. An insertion port is provided on the side of the needle tip vertical channel opposite to the mounting seat, and the vertical channel limiting block extends into the needle tip vertical channel through the insertion port.

[0013] The drive assembly includes a hook pin and a drive line. The hook pin is disposed on the side wall of the lifting cylinder, and the drive line is disposed between the end of the T-shaped rod of the mounting base and the inner side wall of the base cylinder. When the lifting cylinder moves downward, the drive line can be pulled downward by the hook pin to drive the vertical guide limit block.

[0014] Preferably, the storage box is screwed to the base.

[0015] Preferably, the storage box is snapped into place with the base.

[0016] Preferably, the storage box is provided with a vertical partition, and the space on both sides of the storage box is opposite to the needle tip vertical channel and the needle body vertical channel, respectively.

[0017] Preferably, the shearing blade is crescent-shaped, and a pair of opposing shearing blades are provided at both the lower end of the insertion vertical channel and the upper end of the needle tip vertical channel.

[0018] Preferably, a rubber stopper is also provided at the top of the insertion channel.

[0019] The beneficial effects of this invention are mainly reflected in its ability to conveniently and quickly cut and separate the needle body and needle tip, achieving needle tip sharpness removal. After cutting, the needle tip, which carries a high puncture risk, is smaller, reducing the difficulty of subsequent sharps treatment and facilitating subsequent focused processing. Specifically, in use, the needle is inserted into the insertion channel. Once the needle tip enters the channel and contacts the channel's limiting block, the rotating cylinder and base are rotated. The shearing blade cuts off the needle body and needle tip, thus separating the needle's puncture and blood infection properties, reducing infection risk and post-processing difficulty. The cut needle tip falls from the needle tip channel into the storage box, and the needle body falls from the needle body channel into the storage box. This invention eliminates the need for clamping or holding the needle tip during sharps removal; only simple insertion and rotation are required. It is not only easy to operate but also highly safe and reliable, providing a novel method for needle sharps treatment and showing promising prospects for widespread application. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of one embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of another real-time method of the present invention;

[0022] Figure 3 for Figure 2 Enlarged view of section A in the middle;

[0023] Figure 4 for Figure 2 The diagram shows a usage state of the structure shown.

[0024] Figure 5 This is a schematic diagram of a preferred shearing blade. Detailed Implementation

[0025] like Figure 1-4 As shown, the portable syringe needle sharpener is mainly used to cut off the sharpness of needles in medical syringes and infusion sets, in order to eliminate or reduce the sharpness of the needle. Its specific function is to cut off the needle tip. Generally, the cut length of the needle tip is about 0.2-0.5 cm from the bevel edge of the needle tip.

[0026] The portable syringe needle sharpener of this invention adopts a dual-rotating-body layout, similar to a grinding disc. The needle is inserted from the upper rotating body, shears between the upper and lower rotating bodies, and finally exits from the bottom of the lower rotating body. Figure 1As shown, the rotating body consists of a seat cylinder 1 and a rotating cylinder 2 arranged vertically. A central shaft 3 is provided at the center of the top of the seat cylinder 1. The central shaft 3 passes through the mounting hole in the center of the rotating cylinder 2 and forms a rotational engagement with the rotating cylinder 2. After inserting the needle, the seat cylinder 1 and the rotating cylinder 2 can be rotated.

[0027] Combination Figure 1 As shown, one side of the rotating cylinder 2 is provided with an insertion channel 4 for inserting needles. Figure 1 In the middle, that is, on the left side of the rotating cylinder 2, there is an insertion channel 4, which is used to insert the needle as a whole. In addition, in order to ensure that the needle can be removed after being inserted, a rubber plug (generally a rubber plug connected to the top of the insertion channel 4, which is not shown in the figure due to its simple structure) can be provided at the top of the insertion channel 4.

[0028] The side of the seat tube 1 corresponding to the insertion vertical channel 4, that is Figure 1 A needle tip vertical channel 5 is provided on the left side of the middle base 1 for needle tip insertion. The needle tip vertical channel 5 serves two purposes: it allows the needle tip to be inserted and it also acts as a channel for the needle tip to fall after being cut. A vertical channel limiting block 6 is provided within the needle tip vertical channel 5 to support the needle tip. The position of the vertical channel limiting block 6 in the height direction is adapted to the predetermined cutting length of the needle tip. After cutting, the vertical channel limiting block 6 can be disengaged from the needle tip vertical channel 5 by the drive assembly, allowing the cut needle tip to fall.

[0029] like Figure 1 As shown, on the other side of the base cylinder 1, i.e., the right side in the figure, there is also a needle body vertical channel 7 for the needle body to fall after the needle tip is cut off. The side walls of the lower end of the insertion vertical channel 4 and the upper end of the needle tip vertical channel 5 are provided with shearing blades 8, which can cut off the needle body and needle tip when the rotating cylinder 2 and the base cylinder 1 rotate relative to each other.

[0030] In other words, the overall working principle of this invention is as follows: the needle is placed into the insertion vertical channel 4, with the needle tip abutting against the vertical channel limiting block 6. Rotating the seat cylinder 1 and the rotating cylinder 2 causes the needle tip to be cut off by the shearing blade 8 through the relative rotation of the seat cylinder 1 and the rotating cylinder 2. After cutting, as the rotating cylinder 2 continues to rotate, the needle body moves along the insertion vertical channel 4 to the needle body vertical channel 7 and falls out from the needle body vertical channel 7. The needle tip can be removed from the needle tip vertical channel 5 by the drive assembly, thus allowing the needle tip to fall along the needle tip vertical channel 5. The drive assembly can take many forms; it can be a simple pull-out mounting base on which the vertical channel limiting block 6 is placed, enabling manual and rapid driving of the vertical channel limiting block 6. Of course, it can also be linked with other working states to further improve the convenience and rationality of the invention. For example, it can include two states. In state one, the vertical channel limiting block 6 normally closes the needle tip vertical channel 5. In state two, when the rotating drum 2 rotates to the point where the insertion vertical channel 4 is aligned with the needle body vertical channel 7 (that is, when the cutting is completed and the needle body is ready to be discharged), the vertical channel limiting block 6 is driven to exit the needle tip vertical channel, so that the needle body and the needle tip can be discharged separately at the same time without having to drive the receiving limiting block 6 separately. The specific structure can be seen in the following text.

[0031] The invention also includes a storage box 9 installed at the bottom of the base 1 for storing the cut needle tips and needle bodies. After the needle tips and needle bodies fall, they are all placed into the storage box for storage. The storage box 9 can be connected to the base 1 by screws or snaps. In order to form a classified collection of needle tips and needle bodies, a vertical partition 21 can be provided inside the storage box 9. The spaces on both sides of the storage box 9 located on the partition 21 are respectively opposite to the needle tip vertical channel 5 and the needle body vertical channel 7.

[0032] In use, the needle is inserted through the insertion channel 4. Once the needle tip enters the needle tip channel 5 and contacts the channel limiting block 6, the rotating cylinder 2 and the base cylinder 1 are rotated. The shearing blade 8 cuts off the needle body and needle tip, thus separating the needle's puncture and blood infection properties, reducing the risk of infection and the difficulty of post-processing. The cut needle tip falls from the needle tip channel into the storage box 9, and the needle body falls from the needle body channel into the storage box 9. This invention eliminates the need for clamping or holding the needle when cutting off sharp objects; only simple insertion and rotation are required. It is not only easy to operate but also highly safe and reliable, providing a novel method for handling needle sharps.

[0033] Generally, the simplest needle body vertical channel 7, such as Figure 1 As shown, it is a simple vertical drop channel. A better approach, as described earlier, is to work with the drive assembly to achieve coordinated movement of the various parts at the discharge station after the needle is cut. Figure 2 and 3As shown, the top of the seat cylinder 1, corresponding to the needle tip vertical channel 5, is provided with a top hole 10, and the bottom is provided with a bottom hole 11. A support platform 12 is provided on the inner side wall. The needle body vertical channel 7 is composed of a lifting cylinder 13 that passes through the top hole 10 and the support platform 12 and forms a lifting and lowering engagement with the seat cylinder 1. That is to say, the needle body vertical channel 7 is not a vertical channel directly set on the seat cylinder 1, but a vertical lifting cylinder 13, which is formed by the inner cavity of the lifting cylinder 13.

[0034] A retaining ring 14 is provided on the side wall of the lifting cylinder 13, and a first spring 15 is sleeved on the lifting cylinder 13 between the retaining ring 14 and the support platform 12. When the first spring 15 is in its natural state, the top of the lifting cylinder 13 extends beyond the top surface of the seat cylinder 1. When the rotating cylinder 2 rotates to the point where the insertion vertical channel 4 is opposite to the needle body vertical channel 7, the lifting cylinder 13 is pressed downward into the seat cylinder 1. The real-time state of the rotating cylinder 2 is fed back through the two states of the lifting cylinder 13 being extended and pressed in, thereby linking with the drive assembly to form a drive for the exit of the vertical channel limiting block 6.

[0035] Of course, to ensure that the rotating cylinder 2 can effectively press the lifting cylinder 13, the bottom surface of the rotating cylinder 2 of the present invention is a driving inclined surface 0 that slopes downward from the side away from the insertion vertical channel 4 towards the side closer to the insertion vertical channel 4. The driving inclined surface 0 can press the lifting cylinder 13 into the seat cylinder 1. That is to say, the bottom surface of the rotating cylinder 2 is an inclined surface in the rotation direction, with the insertion vertical channel 4 at the bottom. As the rotating cylinder 2 rotates, the driving inclined surface 0 can gradually press the rotating cylinder 2 into the seat cylinder 1. When the lifting cylinder 13 is pressed into the seat cylinder 1, the driving vertical channel limiting block 6 exits the needle tip vertical channel 5.

[0036] As mentioned earlier, the state is as follows Figure 2 As shown, in state two... Figure 4 As shown, to achieve the switching between the two states, the installation form and drive assembly of the vertical guide block 6 can be designed as follows: a vertical plate 16 is provided on the inner side wall of the top center of the seat 1, and a horizontal mounting hole is provided on the vertical plate 16. A T-shaped mounting seat 17 passes through the mounting hole, and the rod of the mounting seat 17 slides into the mounting hole. A second spring 18 is provided between the T-shaped head of the mounting seat 17 and the vertical plate 16. When the second spring 18 is in its natural state, the vertical guide block 6 closes the needle tip vertical channel 5, and its shape is as follows. Figure 2 As shown.

[0037] like Figure 3As shown, an insertion port 30 is provided on the side of the needle tip vertical channel 5 opposite to the mounting base 17, and the vertical channel limiting block 6 extends into the needle tip vertical channel 5 through the insertion port 30. In this structural form, in order to drive the vertical channel limiting block 6, the driving component of the present invention includes a hook pin 19 and a driving line 20. The hook pin 19 is disposed on the side wall of the lifting cylinder 13, and the driving line 20 is disposed between the T-shaped rod end of the mounting base 17 and the inner side wall of the base cylinder 1. When the lifting cylinder 13 moves downward, the driving line 20 can be pulled downward by the hook pin 19 to drive the vertical channel limiting block 6. While meeting the above overall driving requirements, it is foreseeable that other similar structures are also feasible.

[0038] In addition, in order to achieve effective shearing of the needle tip in both the rotating cylinder 2 and the seat cylinder 1, the arrangement of the shearing blades 8 can be as follows: Figure 5 As shown, the shearing blade 8 is crescent-shaped, and a pair of opposing shearing blades 8 are provided at the lower end of the insertion vertical channel 4 and the upper end of the needle tip vertical channel 5.

Claims

1. A portable syringe needle sharpener, characterized in that: It includes a seat (1) and a rotating cylinder (2) arranged vertically. A central shaft (3) is provided at the center of the top of the seat (1). The central shaft (3) passes through the mounting hole in the center of the rotating cylinder (2) and forms a rotational fit with the rotating cylinder (2). The rotating cylinder (2) has an insertion channel (4) on one side for inserting needles. The seat cylinder (1) corresponding to the insertion channel (4) has a needle tip channel (5) for inserting needle tips. The needle tip channel (5) has a channel limiting block (6) that can support the needle tip. The channel limiting block (6) can exit the needle tip channel (5) under the drive of the drive component so that the cut needle tip can fall. The seat cylinder (1) has a needle body channel (7) on the other side for the needle body to fall after the needle tip is cut. Shearing blades (8) are provided on the side walls of the lower end of the insertion vertical channel (4) and the upper end of the needle tip vertical channel (5), and can be used to cut the needle body and needle tip when the rotating cylinder (2) and the seat cylinder (1) rotate relative to each other. It also includes a storage box (9) installed at the bottom of the base (1) for storing the cut needle tip and needle body.

2. The portable syringe needle sharpener according to claim 1, characterized in that: The top of the seat cylinder (1) and the bottom of the needle tip vertical channel (5) are provided with a top hole (10) and a bottom hole (11), and a support platform (12) is provided on the inner side wall; the needle body vertical channel (7) is composed of a lifting cylinder (13) that passes through the top hole (10) and the support platform (12) and forms a lifting cooperation with the seat cylinder (1); A retaining ring (14) is provided on the side wall of the lifting cylinder (13), and a first spring (15) is provided on the lifting cylinder (13) between the retaining ring (14) and the support (12); when the first spring (15) is in its natural state, the top of the lifting cylinder (13) extends beyond the top surface of the seat cylinder (1). The bottom surface of the rotating cylinder (2) is a driving inclined surface (0) that slopes downward from the side away from the insertion vertical channel (4) toward the side close to the insertion vertical channel (4). The driving inclined surface (0) can press the lifting cylinder (13) into the seat cylinder (1). When the lifting cylinder (13) is pressed into the seat cylinder (1), the drive assembly drives the vertical guide limit block (6) to exit the needle tip vertical guide (5).

3. The portable syringe needle sharpener according to claim 2, characterized in that: A vertical plate (16) is provided on the inner side wall of the top center of the seat (1). A horizontal mounting hole is provided on the vertical plate (16). A T-shaped mounting seat (17) is inserted through the mounting hole. The mounting seat (17) and the mounting hole are in sliding fit. A second spring (18) is provided between the T-shaped head of the mounting seat (17) and the vertical plate (16). An insertion port (30) is provided on the side of the needle tip vertical channel (5) opposite to the mounting seat (17). The vertical channel limiting block (6) extends into the needle tip vertical channel (5) through the insertion port (30). The drive assembly includes a hook pin (19) and a drive line (20). The hook pin (19) is disposed on the side wall of the lifting cylinder (13), and the drive line (20) is disposed between the end of the T-shaped rod of the mounting base (17) and the inner side wall of the seat cylinder (1). When the lifting cylinder (13) moves downward, the drive line (20) can be pulled downward by the hook pin (19) to drive the vertical guide limit block (6).

4. The portable syringe needle sharpener according to claim 3, characterized in that: The storage box (9) is screwed to the base (1).

5. The portable syringe needle sharpener according to claim 3, characterized in that: The storage box (9) is snapped into place with the base (1).

6. The portable syringe needle sharpener according to claim 5, characterized in that: The storage box (9) is provided with a vertical partition (21), and the space on both sides of the storage box (9) is opposite to the needle tip vertical channel (5) and the needle body vertical channel (7), respectively.

7. The portable syringe needle sharpener according to claim 6, characterized in that: The shearing blade (8) is crescent-shaped, and a pair of opposing shearing blades (8) are provided at the lower end of the insertion vertical channel (4) and the upper end of the needle tip vertical channel (5).

8. The portable syringe needle sharpener according to claim 7, characterized in that: A rubber stopper is also provided at the top of the insertion vertical channel (4).

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