Anti-needling device

Abstract

The utility model relates to the technical field of medical instruments, and discloses an anti-acupuncture device which comprises an upper cover and a lower cover which are arranged in a split mode. One end of the upper cover in the extending direction is provided with an upper cover tail end, the upper cover tail end is provided with a first connecting part and a first insertion port, the upper cover is provided with a first accommodating cavity with an opening facing the lower cover, the first insertion port is communicated with the first accommodating cavity in the axial direction, and the inner side wall of the first accommodating cavity is provided with an embedded connecting part; the lower cover comprises a main body part and a tail end part, the tail end part is connected to one end of the main body part, and the tail end part is provided with a second connecting part; the first connecting part is clamped with the second connecting part; and the main body part is embedded in the first accommodating cavity and is buckled with the embedded connecting part. According to the anti-needling device, the positioning requirement when the anti-needling device is respectively assembled with the catheter and the guide needle is reduced, the assembly process is simplified, the assembly cost is reduced, and the use safety is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of medical devices, and in particular to an anti-needle puncture device. Background Technology

[0002] The anti-puncture needle device is designed to prevent hand injuries during the recycling of puncture needles after use. Currently, the manufactured anti-puncture needle devices are produced as a single injection molded unit, with an overall structure as follows: Figure 8 As shown, the anti-puncture needle device consists of an upper cover and a lower cover, but the tails of the upper and lower covers are integrated. Because the upper and lower covers are integrated, and the catheter is relatively soft, multiple sets of jigs are required to align the guide needle with the catheter before the device can be smoothly installed on the catheter. If the alignment of the guide needle and the catheter is slightly off, the current device cannot be assembled. Furthermore, the existing device has an open design, which can be easily pried open with fingers, but this can lead to the guide needle pricking the fingers, resulting in low safety. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. It provides an anti-needle-puncture device that reduces the positioning requirements when assembling the anti-needle-puncture device with the catheter and guide needle, simplifies the assembly process, reduces assembly costs, and improves safety during use.

[0004] To achieve the above objectives, this utility model provides an anti-needle-puncture device, including an upper cover and a lower cover, wherein the upper cover and the lower cover are separately disposed;

[0005] The upper cover has a tail end in the extending direction. The tail end of the upper cover is provided with a first connecting part and a first insertion port. The upper cover is provided with a first receiving cavity with an opening facing the lower cover. The first insertion port communicates with the first receiving cavity along the axial direction. The inner sidewall of the first receiving cavity is provided with an embedded connecting part.

[0006] The lower cover includes a main body and a tail end, the tail end is connected to one end of the main body, and the tail end is provided with a second connecting part;

[0007] The first connecting part is engaged with the second connecting part, and the main body is embedded in the first accommodating cavity and fastened with the embedded connecting part.

[0008] As a preferred embodiment, the width of the main body is smaller than the width of the tail end, and the width of the tail end is set to correspond to the width of the tail end of the upper cover.

[0009] As a preferred embodiment, one end of the main body is connected to the tail end, and the other end is inclined toward the upper cover.

[0010] As a preferred embodiment, the lower cover has a second receiving cavity with an opening facing the upper cover. The second receiving cavity extends to the main body and the tail end, respectively. The second receiving cavity is positioned corresponding to the first receiving cavity, and the first insertion port opening faces the lower cover.

[0011] As a preferred embodiment, the lower cover is provided with a second insertion port that communicates with the second accommodating cavity along the axial direction. The opening of the second insertion port is disposed facing the upper cover. The second insertion port is disposed in a position corresponding to the first insertion port. The first insertion port and the second insertion port are connected radially.

[0012] As a preferred embodiment, the first connecting part is a first buckle extending toward the side of the lower cover, and the second accommodating cavity is provided with a first slot, and the first buckle engages with the first slot.

[0013] As a preferred embodiment, the upper cover has a plurality of first protrusions at its tail end, and the upper cover has a plurality of second protrusions at the end away from the tail end;

[0014] And / or, the lower cover has a plurality of third protrusions on one side opposite to the upper cover.

[0015] As a preferred embodiment, the upper cover has an arcuate surface on the side opposite to the lower cover at its tail end, the opening of the arcuate surface is opposite to the lower cover, and the first protrusion is connected to the arcuate surface.

[0016] As a preferred embodiment, the upper cover protrudes toward the lower cover to form a first sealing portion, the first sealing portion being located at the end of the upper cover away from the tail end, and the main body having a second sealing portion at the end away from the tail end, the first sealing portion and the second sealing portion being closed together.

[0017] As a preferred embodiment, the lengths of the upper cover and the lower cover are both greater than or equal to 71.53 mm.

[0018] Compared with the prior art, the anti-needle-puncture device of this utility model has the following advantages: It includes an upper cover and a lower cover. The tail end of the upper cover is provided with a first connecting part and a first insertion port. The upper cover has a first receiving cavity that communicates with the first insertion port. A puncture needle is inserted into one end of a catheter to form an infusion product. The first receiving cavity is used to accommodate the infusion product. The output product is inserted into the first receiving cavity through the first insertion port. One end of the catheter is located in the first receiving cavity, and the other end of the catheter extends out of the upper cover through the first insertion port. The lower cover includes a main body and a tail end, which is connected to one end of the main body to form a whole. The upper and lower covers are separately arranged so that, in the assembly step, the infusion product can be assembled first, and then the upper and lower covers can be assembled. This reduces the positioning requirements for assembling the infusion product within the anti-needle-puncture device, simplifies the assembly process, and reduces assembly costs. The first connecting part of the upper cover engages with the first connecting part of the lower cover, making assembly simple and convenient, and improving assembly efficiency. Simultaneously, the main body is embedded in the first receiving cavity and fastens with the inner cavity connecting part to achieve connection and positioning. The closure of the first receiving cavity by the main body is simple and convenient, improving assembly efficiency. At the same time, it seals the first receiving cavity, preventing the puncture needle of the infusion product from being exposed, thus improving safety. The engagement of the first and second connecting parts, and the fastening of the main body with the embedded connecting part, enhance the connection stability between the upper and lower covers. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0020] Figure 2 This is a top view of the overall structure of an embodiment of this utility model.

[0021] Figure 3 This is a schematic diagram of the internal structure of the top cover according to an embodiment of the present utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the lower cover in an embodiment of this utility model.

[0023] Figure 5 This is a cross-sectional view of the lower cover of an embodiment of this utility model.

[0024] Figure 6 This is a schematic diagram of the assembly structure of the embodiment of the present invention and the infusion product.

[0025] Figure 7 This is a schematic diagram of the internal structure of the assembly of the present invention and the infusion product.

[0026] Figure 8 This is a schematic diagram of the structure of an existing needle-puncture prevention device.

[0027] In the picture:

[0028] 10. Top cover; 11. Tail end of top cover; 12. First connecting part; 13. First insertion port; 14. First receiving cavity; 15. Embedded connecting part; 16. First protrusion; 17. Second protrusion; 18. Arc surface; 19. First closing part;

[0029] 30. Lower cover; 31. Main body; 32. Tail end; 33. Second receiving cavity; 34. Second insertion port; 36. Third protrusion; 37. Second closing part

[0030] 40. Catheter; 41. Puncture needle. Detailed Implementation

[0031] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, it should be understood that the terms "connected," "linked," and "fixed," etc., used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or a welded connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] like Figures 1 to 7 As shown, a preferred embodiment of the present invention provides an anti-needle puncture device, which includes an upper cover 10 and a lower cover 30, wherein the upper cover 10 and the lower cover 30 are separately disposed.

[0035] The upper cover 10 has a tail end at one end in the extending direction. The tail end of the upper cover 10 is provided with a first connecting part 12 and a first insertion port 13. The upper cover 10 is provided with a first receiving cavity 14 with an opening facing the lower cover 30. The first insertion port 13 communicates with the first receiving cavity 14. The inner side wall of the first receiving cavity 14 is provided with an embedded connecting part 15.

[0036] The lower cover 30 includes a main body 31 and a tail end 32. The tail end 32 is connected to one end of the main body 31 and is provided with a second connecting part.

[0037] The first connecting part 12 engages with the second connecting part, and the main body 31 is embedded in the first receiving cavity 14 and fastened with the embedded connecting part 15.

[0038] The anti-needle-puncture device of this utility model includes an upper cover 10 and a lower cover 30. The tail end of the upper cover 10 is provided with a first connecting part 12 and a first insertion port 13. The upper cover 10 has a first receiving cavity 14, which communicates with the first insertion port 13. A puncture needle 41 is inserted into one end of a catheter 40 to form an infusion product. The first receiving cavity 14 is used to contain the infusion product. The output product is inserted into the first receiving cavity 14 through the first insertion port 13. One end of the catheter 40 is located in the first receiving cavity 14, and the other end of the catheter 40 extends to the outside of the upper cover 10 through the first insertion port 13. The lower cover 30 includes a main body part 31 and a tail end part 32, which is connected to one end of the main body part 31 to form an integral unit. The upper cover 10 and the lower cover 30 are separately provided so that, in the assembly step, the infusion product can be assembled first, and then the upper cover 10 and the lower cover 30 can be assembled. This reduces the positioning requirements of assembling the infusion product within the anti-needle-puncture product, simplifies the assembly process, and reduces assembly costs. The first connecting part 12 of the upper cover 10 and the first connecting part 12 of the lower cover 30 are snapped together, making assembly simple and convenient and improving assembly efficiency. Meanwhile, the main body 31 is embedded in the first receiving cavity 14 and fastened to the inner cavity connecting part for connection and positioning. The closure of the first receiving cavity 14 by the main body 31 is simple and convenient, improving assembly efficiency. Simultaneously, the closure of the first receiving cavity 14 prevents the puncture needle 41 of the infusion product from being exposed, improving safety. The snapping of the first connecting part 12 with the second connecting part, and the fastening of the main body 31 with the embedded connecting part 15, enhance the connection stability between the upper cover 10 and the lower cover 30.

[0039] As one embodiment, such as Figure 1 and Figure 7 As shown, embedded connecting parts 15 are respectively provided on the inner sidewalls of the first accommodating cavity 14, and the embedded connecting parts 15 protrude from the inner sidewalls.

[0040] Furthermore, such as Figures 1 to 4As shown, the width of the main body 31 is smaller than the width of the tail end 32, and the width of the tail end 32 corresponds to the width of the tail end of the upper cover 10. The width of the main body 31 is smaller than the width of the tail end 32, and the width of the upper cover 10 is larger than the width of the main body 31. The main body 31 is embedded in the first receiving cavity 14 of the upper cover 10 to provide a sealing function, preventing the needle tip from being exposed and improving safety. At the same time, the width of the tail end 32 corresponds to the width of the tail end of the upper cover 10, and the tail end 32 is engaged with the tail end of the upper cover 10. The tail end 32 is exposed outside the upper cover 10, which facilitates the disassembly and removal of the upper cover 10 and the lower cover 30.

[0041] Furthermore, such as Figures 4 to 5 As shown, one end of the main body 31 is connected to the tail end 32, and the other end is inclined toward the upper cover 10. After the main body 31 is inclinedly embedded in the first accommodating cavity 14, it plays a role in limiting the placement space of the puncture needle 41, pressing the puncture needle 41, and improving the placement stability of the infusion product.

[0042] Furthermore, such as Figure 5 As shown, the lower cover 30 has a second receiving cavity 33 with its opening facing the upper cover 10. The second receiving cavity 33 extends to the main body 31 and the tail end 32, respectively. The second receiving cavity 33 is positioned corresponding to the first receiving cavity 14. The first insertion port 13 is positioned with its opening facing the lower cover 30. When assembling the infusion product and the needle puncture prevention device, the infusion product can be placed in the first receiving cavity 14 of the upper cover 10 and then closed with the lower cover 30, or placed in the second receiving cavity 33 of the lower cover 30 and then closed with the upper cover 10, improving the ease of assembly of the needle puncture prevention device and the infusion product. The catheter 40 is initially positioned through the first insertion port 13.

[0043] Furthermore, such as Figure 5 As shown, the lower cover 30 is provided with a second insertion port 34 that communicates axially with the second accommodating cavity 33. The opening of the second insertion port 34 faces the upper cover 10. The second insertion port 34 is positioned corresponding to the first insertion port 13, and the first insertion port 13 and the second insertion port 34 are connected radially. When the infusion product is assembled with the lower cover 30, the second insertion port 34 is used for initial positioning of the conduit 40, improving the positioning accuracy of the conduit 40 with the lower cover 30 and the upper cover 10 respectively.

[0044] Furthermore, such as Figure 3 As shown, the first connecting part 12 is a first buckle extending towards the lower cover 30, and the second receiving cavity 33 is provided with a first slot, and the first buckle engages with the first slot. The first buckle engages with the second receiving cavity 33, and the outer periphery of the upper cover 10 after the tail end and tail end 32 are fastened together is relatively regular, which is convenient for gripping and improves the user experience.

[0045] Furthermore, such as Figures 1 to 4As shown, the upper cover 10 has multiple first protrusions 16 at its tail end, multiple second protrusions 17 at the end of the upper cover 10 away from its tail end, and / or, the lower cover 30 has multiple third protrusions 36 on the side opposite to the upper cover 10. The arrangement of the first protrusions 16, second protrusions 17, and third protrusions 36 increases friction during use, improving the user experience. The third protrusions 36 further increase friction during operation, preventing fingers from slipping when pressing down the cover 30 and ensuring a higher success rate.

[0046] In one embodiment, the position of the third protrusion 36 is set to correspond to the position of the embedded connection portion 15, making it easier for the side of the lower cover 30 facing away from the upper cover 10 to be pressed into the embedded connection portion 15.

[0047] As one embodiment, such as Figures 1 to 4 As shown, the first protrusion 16, the second protrusion 17, and the third protrusion 36 are strip-shaped or dot-shaped protrusions.

[0048] Furthermore, such as Figure 1 As shown, the upper cover 10 has an arc-shaped surface 18 on the side of its tail end 32 facing away from the lower cover 30. The opening of the arc-shaped surface 18 faces away from the lower cover 30, and the first protrusion 16 is connected to the arc-shaped surface 18. The shape of the arc-shaped surface 18 is similar to that of a thumb, which fits the thumb more closely during use and improves the user experience.

[0049] Furthermore, such as Figures 3 to 4 As shown, the upper cover 10 protrudes towards the lower cover 30 to form a first sealing part 19. The first sealing part 19 is located at the end of the upper cover 10 away from the tail end of the upper cover 10. The main body 31 has a second sealing part 37 at the end away from the tail end 32. The first sealing part 19 and the second sealing part 37 are fitted together and closed. The main body 31 is embedded in the first receiving cavity 14 and is closed by the first sealing part 19 and the second sealing part 37, which solves the problem of the needle tip protruding and pricking the hand, and improves the safety of use.

[0050] Furthermore, the lengths of the upper cover 10 and the lower cover 30 are each greater than or equal to 71.53 mm. The lengths of the upper cover 10 and the lower cover 30 are much greater than the length of the puncture needle 41, ensuring that the puncture needle 41 can be completely placed inside the upper cover 10 and the lower cover 30, thus improving safety during use.

[0051] As one embodiment, such as Figure 1 As shown, the end of the upper cover 10 away from the tail end of the upper cover 10 has an arc-shaped surface, and the arc-shaped surface faces the side of the lower cover 30. The arc-shaped surface allows the puncture needle 41 to slide into the first receiving cavity more smoothly.

[0052] In summary, this utility model embodiment provides an anti-needle puncture device, including an upper cover 10 and a lower cover 30. The tail end of the upper cover 10 is provided with a first connecting portion 12 and a first insertion port 13. The upper cover 10 is provided with a first receiving cavity 14, which communicates with the first insertion port 13. A puncture needle 41 is inserted into one end of a catheter 40 to form an infusion product. The first receiving cavity 14 is used to contain the infusion product. The output product is inserted into the first receiving cavity 14 through the first insertion port 13. One end of the catheter 40 is located in the first receiving cavity 14, and the other end of the catheter 40 extends to the outside of the upper cover 10 through the first insertion port 13. The lower cover 30 includes a main body portion 31 and a tail end portion 32, which is connected to one end of the main body portion 31 to form an integral unit. The upper cover 10 and lower cover 30 are separate units, allowing the infusion product to be assembled first, followed by the assembly of the upper cover 10 and lower cover 30. This reduces the positioning requirements of assembling the infusion product within the needle-proof product, simplifies the assembly process, and lowers assembly costs. The first connecting part 12 of the upper cover 10 and the first connecting part 12 of the lower cover 30 are snapped together, making assembly simple and convenient, and improving assembly efficiency. Simultaneously, the main body 31 is embedded in the first receiving cavity 14 and fastened to the inner cavity connecting part for connection and positioning. The closure of the first receiving cavity 14 by the main body 31 is simple and convenient, improving assembly efficiency. Furthermore, the closure of the first receiving cavity 14 prevents the puncture needle 41 of the infusion product from being exposed, improving safety. The snapping between the first connecting part 12 and the second connecting part, and the fastening between the main body 31 and the embedded connecting part 15, enhance the connection stability of the upper cover 10 and lower cover 30.

[0053] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of this utility model, and these improvements and substitutions should also be considered within the protection scope of this utility model.

Claims

1. A needle-puncture prevention device, characterized in that: It includes an upper cover and a lower cover, wherein the upper cover and the lower cover are separately disposed; The upper cover has a tail end in the extending direction. The tail end of the upper cover is provided with a first connecting part and a first insertion port. The upper cover is provided with a first receiving cavity with an opening facing the lower cover. The first insertion port communicates with the first receiving cavity along the axial direction. The inner sidewall of the first receiving cavity is provided with an embedded connecting part. The lower cover includes a main body and a tail end, the tail end is connected to one end of the main body, and the tail end is provided with a second connecting part; The first connecting part is engaged with the second connecting part, and the main body is embedded in the first accommodating cavity and fastened with the embedded connecting part.

2. The anti-needle-puncture device according to claim 1, characterized in that: The width of the main body is smaller than the width of the tail end, and the width of the tail end is set to correspond to the width of the tail end of the upper cover.

3. The anti-needle-puncture device according to claim 1, characterized in that: One end of the main body is connected to the tail end, and the other end is inclined toward the upper cover.

4. The anti-needle-puncture device according to claim 1, characterized in that: The lower cover has a second receiving cavity with an opening facing the upper cover. The second receiving cavity extends to the main body and the tail end, respectively. The second receiving cavity is positioned corresponding to the first receiving cavity. The first insertion port is positioned facing the lower cover.

5. The anti-needle-puncture device according to claim 4, characterized in that: The lower cover is provided with a second insertion port that communicates with the second accommodating cavity along the axial direction. The opening of the second insertion port is disposed facing the upper cover. The second insertion port is disposed in a position corresponding to the first insertion port. The first insertion port and the second insertion port are connected radially.

6. The anti-needle-puncture device according to claim 4, characterized in that: The first connecting part is a first buckle extending toward the lower cover side, and the second receiving cavity is provided with a first slot, and the first buckle engages with the first slot.

7. The anti-needle-puncture device according to claim 1, characterized in that: The upper cover has multiple first protrusions at its tail end, and the upper cover has multiple second protrusions at the end away from the tail end. And / or, the lower cover has a plurality of third protrusions on one side opposite to the upper cover.

8. The anti-needle-puncture device according to claim 7, characterized in that: The upper cover has an arc-shaped surface on the side opposite to the lower cover at its tail end, and the opening of the arc-shaped surface is opposite to the lower cover. The first protrusion is connected to the arc-shaped surface.

9. The anti-needle-puncture device according to claim 1, characterized in that: The upper cover protrudes toward the lower cover to form a first sealing portion. The first sealing portion is located at the end of the upper cover away from the tail end. The main body has a second sealing portion at the end away from the tail end. The first sealing portion and the second sealing portion are closed together.

10. The anti-needle-puncture device according to claim 1, characterized in that: The lengths of the upper cover and the lower cover are both greater than or equal to 71.53 mm.

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