TWM572760U - Safety cap of syringe - Google Patents

Abstract

The utility model relates to a safety needle sleeve which is arranged on a curved needle which is inserted into a skin and defines a direction of insertion of the skin. The safety needle sleeve comprises a sliding unit and a slidably sleeved on the sliding unit. Set the unit. The sliding unit includes a base adapted for the bent needle to pass through, and a moving shaft that passes through the base. The accommodating unit includes two sliding sleeves disposed at two ends of the moving shaft and cooperatively defining a chamber, and each sliding wall is formed with a sliding direction for the reverse sliding of the moving shaft along the insertion direction. a sliding slot, each of the sliding slots has a latching portion for non-slidably receiving the moving shaft, so that the sliding unit can slide to a movable position relative to the receiving unit from a deployed position where the curved needle is exposed The shaft is located at the engaging portion and the looper is located at the folded position of the chamber.

Description

Safety needle cover

The present invention relates to a needle cover, and more particularly to a safety needle cover for avoiding stab wounds by a nursing staff.

Referring to FIG. 1 , a conventional butterfly curved needle includes a base 61 , two fins 62 extending outward from opposite sides of the base 61 , and a plurality of blades 62 extending from the base 61 and from the base One side of the 61 is bent perpendicularly to the base 61 to bend the outwardly extending looper 63. When the butterfly looper is used, a portion of the looper 63 exposed outside the base 61 penetrates into a patient's skin 64 such that the flaps 62 are adjacent and parallel to the skin 64 for a user to The medical tape fixes the butterfly looper to the skin.

Referring to FIG. 2, after the end of use, the user will hold the flaps 62 by hand, and the flaps 63 are pulled away from the skin 64 by the flaps 62, and then a needle sleeve is attached. Not shown) is overlaid on the looper 63 to prevent the looper 63 from being exposed and stabbing the user. However, since the aperture of the needle sleeve is opened to match the curved needle 63, the user needs to spend more time aligning the needle sleeve with the curved needle 63 to perform the covering, and the user is covering the bending needle. In the process of needle sleeves, it is often necessary to improve the operation time due to compact operation or inattention.

Therefore, the purpose of the present invention is to provide a safety needle cover that can safely use a curved needle to prevent a user from having a needle stick accident.

Therefore, the safety needle sleeve of the present invention is suitable for being placed on a curved needle piercing a skin, defining a direction of insertion toward the skin, the curved needle comprising a connecting section extending perpendicularly to the insertion direction, and a self One end of the engaging section is bent and extended along the insertion direction and is used to penetrate the needle segment of the skin. The safety needle cover includes a sliding unit adapted to be detachably attached to the skin, and a receiving unit slidably sleeved on the sliding unit. The sliding unit includes a base adapted to be passed through the engaging portion of the curved needle, two wings extending outward from opposite sides of the base and adapted to be attached to the skin, and a piercing The pedestal is adjacent to a moving axis of the side of the needle segment, and the pedestal has two sides respectively located on opposite sides of the engaging segment.

The accommodating unit includes two sliding walls respectively disposed at opposite ends of the moving shaft, and a side connecting the sliding walls away from the fins, and cooperates with the sliding walls to define a receiving device A fixed wall of the chamber of the base. Each of the sliding walls is formed with a sliding slot for sliding the sliding unit in a direction opposite to the insertion direction, and each of the sliding slots has a locking portion for slidably receiving the moving shaft, and a sliding section that communicates with the engaging portion and has a smaller diameter than the engaging portion and is gradually widened away from the engaging portion. The moving shaft is disposed at an end of the sliding slot away from the engaging portions, so that the sliding unit can slide relative to the receiving unit from a deployed position that exposes the needle segment to a moving axis. In the engaging portion, the needle segment is accommodated in a folding position in the chamber.

The function of the present invention is that the sliding unit can be slid from the deployment position to the retracting position relative to the receiving unit by the end of the sliding slot away from the engaging portions. Safely and quickly, the needle segment is accommodated in the chamber, and when the moving shaft is located at the engaging portions, the sliding portion of the smaller diameter can no longer be slid, and the needle segment is not exposed. Effectively avoid accidents involving needle sticks.

Referring to FIG. 3 to FIG. 5 , an embodiment of the safety needle sleeve of the present invention is suitable for being placed on a curved needle 4 which is inserted into a skin 3 and defines an insertion direction D toward the skin 3 . The curved needle 4 is defined. An engaging section 41 extending perpendicularly to the insertion direction D and a distal end extending from the engaging section 41 in the insertion direction D and for piercing the needle section 42 of the skin 3 are included. The embodiment includes a sliding unit 1 adapted to be detachably attached to the skin 3, and a receiving unit 2 slidably sleeved on the sliding unit 1.

The sliding unit 1 comprises a base 11 adapted for the engagement section 41 of the curved needle 4, two wings extending outwardly from opposite sides of the base 11 and adapted for attachment to the skin 3 a piece 12, a moving shaft 13 disposed on a side of the base 11 adjacent to the needle segment 42 in a direction perpendicular to the insertion direction D, and a reverse axis extending from the base 11 and the insertion direction D Fastener 14.

The base 11 is formed with a passage 112 adapted for the bending needle 4 to pass through, and an end of the passage 112 adjacent to the moving shaft 13 extends along the insertion direction D and extends through the base 11 and is suitable for receiving A needle exit 113 of the needle segment 42 of the looper 4 is provided. The base 11 has two opposite sides on the opposite sides of the engaging section 41 of the looper 4, and the sides for the flaps 12 are respectively connected. 111. Each of the flaps 12 has a face 3 facing the skin 3 and is adapted to be slidably attached to the slip surface 121 of the skin 3. The fastening member 14 has a through portion 141 connected to the base 11 and a hook portion 142 extending away from the side of the base portion 11 in a direction perpendicular to the insertion direction D. .

The channel 112 has a small aperture section 114 adapted to be inserted through the connecting section 41, and a small aperture section 114 is connected to the small aperture section 114 and has a larger diameter than the small aperture section 114, and is adapted to accommodate a set of the connecting section 41. The large aperture section 115 of the sleeve 5. The embodiment is suitable for the sleeve 5 to pass through the large aperture section 115 into the channel 112, and the engaging section 41 of the looper 4 is inserted from the small aperture section 114 to the channel 112 and the sleeve. In 5, the needle segment 42 of the looper 4 extends from the needle exit passage 113 in the insertion direction D.

The accommodating unit 2 includes two sliding walls 21 which are spaced apart from each other and are respectively sleeved at opposite ends of the moving shaft 13 , and a fixed wall 22 that connects the sliding walls 21 away from the side of the wings 12 . The sliding wall 21 and the blocking wall 23 of the fixing wall 22 and the two sides respectively from the sliding wall 21 close to the pivoting portions 214 extend outwardly and are adapted to detachably abut the same The force applying member 24 of the skin 3.

Each of the sliding walls 21 defines a sliding slot 211 for sliding the sliding unit 1 along the insertion direction D. Each of the sliding slots 211 has a card for slidably receiving the opposite ends of the moving shaft 13 . a sliding portion 213 that communicates with the engaging portion 212 and has a smaller width than the engaging portion 212 and is gradually widened away from the engaging portion 212, and a sliding portion 213 that is away from the engaging portion 212 One end and a pivoting portion 214 for the moving shaft 13 to pass through. In this embodiment, the minimum diameter of each sliding section 213 is slightly smaller than the minimum diameter of the moving shaft 13, and the maximum diameter of each sliding section 213 is slightly smaller than the maximum diameter of the moving shaft 13, each of which The diameter of the pivot portion 214 is slightly larger than the maximum diameter of the moving shaft 13.

The fixing wall 22 cooperates with the sliding walls 21 to define a cavity 25 for receiving the base 11 and a fastening hole 221 for the fastening member 14 to be fixed. The blocking wall 23 has a cover portion 231 that engages the sliding walls 21, and a limiting portion 232 that extends from the cover portion 231 away from the fixed wall 22 for the base 11 to resist. .

4, FIG. 6 to FIG. 9 show only one wing piece 12, a sliding wall 21, a sliding groove 211, an engaging portion 212, a sliding section 213, a pivoting portion 214, and a biasing force. Item 24, the first description. Moreover, although the following description of the operation is presented on one side, the other side is symmetrically identical.

Referring to FIG. 4 and FIG. 6 , when the needle segment 42 of the looper 4 is inserted into the skin 3 , the moving shaft 13 of the sliding unit 1 is first inserted into the pivoting portions 214 of the receiving unit 2 . The sliding walls 21 of the accommodating unit 2 extend in a direction perpendicular to the insertion direction D. The urging members 24 of the accommodating unit 2 extend along the insertion direction D to make the sliding unit 1 The pedestal 11 is substantially received in the accommodating chamber 25, and the fastening member 22 of the accommodating unit 2 is fastened by the fastening member 14 of the sliding unit 1 so that the accommodating unit 2 is opposite to the sliding unit 1 As shown in Fig. 6, the needle segment 42 is inserted into the skin 3 to prevent the receiving unit 2 from protruding outward to affect the infusion operation. Next, the present embodiment can be fixed to the skin 3 with a medical tape (not shown), and the cannula 5 can be used for the infusion operation. If the needle segment 42 is first inserted into the skin 3 and the receiving unit 2 is in the overlapping position relative to the sliding unit 1 , the receiving unit 2 may be pivoted or fastened by the fastening member 14 . The fixed wall 22 or the like operates to cause the needle segment 42 to agitate inside the skin 3, causing discomfort to the patient.

In the embodiment, the engaging portion 141 of the engaging member 14 is disposed in the engaging hole 221 of the receiving unit 2, and the hooking portion 142 of the engaging member 14 is along the edge. Parallel to the extending direction of the base 11 away from the moving shaft 13 , the sliding unit 1 and the fixing wall 22 can be fastened and fixed together. However, the form of the fastening member 14 and the manner of fastening the fixing wall 22 are not limited thereto, as long as the sliding unit 1 and the receiving unit 2 can be fixed together. The anti-slip surface 121 of the fins 12 increases the friction between the fins 12 and the skin 3, and the maximum width of the sliding segments 213 is slightly smaller than the maximum diameter of the moving shaft 13, the movement The shaft 13 does not easily slide to the sliding segments 213, and prevents the needle segment 42 from being inserted into the skin 3. The sliding of the base 11 causes the needle segment 42 to agitate inside the skin 3, thereby causing the patient to suffer. Discomfort.

When the infusion operation is completed, the user first bends the fastening member 14 slightly in the direction of the moving shaft 13, so that the fixing wall 22 is no longer hooked by the hooking portion 142, and the receiving unit 2 can be With the moving shaft 13 as a rotating shaft, the sliding unit 1 is pivoted from the overlapping position shown in FIG. 6 to a deployed position as shown in FIG. In this embodiment, in the deployed position, the sliding walls 21 extend in opposite directions from the insertion direction D, and the force applying members 24 extend in the same direction as the fins 12 of the sliding unit 1 . Only a small portion of the susceptor 11 adjacent to the moving shaft 13 is still accommodated in the chamber 25. At this time, the sliding unit 1 and the receiving unit 2 are substantially perpendicular to each other, and the needle segment 42 is exposed from the base 11 toward the outside of the chamber 25. Since the diameter of each of the pivoting portions 214 is slightly larger than the maximum diameter of the moving shaft 13, the receiving unit 2 can be easily pivoted from the overlapping position to the deployed position.

Referring to FIG. 7 to FIG. 9 again, and referring back to FIG. 4, in the deployed position, in order to prevent the needle segment 42 from being exposed and the user or the patient is injured, the user can use the hand as shown in FIG. 7. The force applying members 24 of the accommodating unit 2 are pressed against the skin 3 in the insertion direction D, and the wings 12 of the sliding unit 1 are simultaneously grasped by the other hand, and the insertion is opposite to the insertion Pulling in the direction of the direction D, the moving shaft 13 slides along the sliding sections 213 from the pivoting portion 214 of the sliding grooves 211 in the direction indicated by the arrow in the right direction of FIG. 8, and the needle segment 42 is separated from the skin. The interior of 3. Since the diameters of the sliding segments 213 are gradually reduced toward the connected engaging portions 212, the minimum width of the sliding segments 213 will be slightly smaller than the diameter of the moving shaft 13, so that the moving axis When sliding in the sliding segments 213, the wall surfaces of the sliding segments 213 are gradually defined by the sliding walls 21, so that the sliding unit 1 cannot be easily pivoted during the sliding process. The portion 214 slides back to the deployed position.

Finally, the moving shaft 13 is positioned in the engaging portions 212 as shown in FIG. 9 to slide the sliding unit 1 relative to the receiving unit 2 to a folding position. In the retracting position, the moving shaft 13 is located in the engaging portion 212, so that the needle segment 42 is accommodated in the chamber 25, so that the needle segment 42 can be prevented from being exposed to the outside and a needle stick accident occurs. Since the sliding walls 21 can be deformed toward the left and the middle arrows in FIG. 8, respectively, the moving shaft 13 can be slid to the sliding section 213 with a diameter which is slightly smaller than the narrowest portion of the moving shaft 13. When the moving shaft 13 slides to the engaging portions 212, the sliding walls 21 return to their original shapes and positions by their own elasticity, so that the moving shaft 13 cannot be moved from the engaging portions 212. The connected sliding segments 213 slide and ensure that the sliding unit 1 can be located at the folding position with respect to the receiving unit 2 for a long time, and the needle segment 42 cannot be exposed again. It should be noted that the operation mode and the sequence of the embodiment are exemplified by one example, and the actual operation is not limited thereto.

In addition, the fixed wall 22 is blocked on one side of the chamber 25, and the limiting portion 232 of the accommodating unit 2 protrudes away from the fixed wall 22, and resists the base 11, so that When the sliding unit 1 is in the folding position, the moving shaft 13 cannot pivot relative to the receiving unit 2, and the needle segment 42 is prevented from being exposed from the chamber 25 when the folding position is closed. Users and patients are safe.

In summary, the safety needle sleeve of the present invention slides from the pivoting portions 214 to the engaging portions 212 by the moving shaft 13 so that the sliding unit 1 slides relative to the receiving unit 2 Up to the folding position where the needle segment 42 cannot be exposed, the needle segment 42 can be folded safely and quickly, and the user and the patient are no longer exposed to the risk of needle accident, so it can be achieved. The purpose of this new type.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

1‧‧‧Sliding unit

11‧‧‧Base

111‧‧‧ side

112‧‧‧ channel

113‧‧‧ Needle hole

114‧‧‧Small aperture section

115‧‧‧ Large aperture section

12‧‧‧ wing

121‧‧‧Slip surface

13‧‧‧Moving axis

14‧‧‧Fittings

141‧‧‧ Department of Wear

142‧‧‧Checking Department

2‧‧‧Capacity unit

21‧‧‧ sliding wall

211‧‧ ‧ chute

212‧‧‧Contact Department

213‧‧‧Sliding section

214‧‧‧ pivoting department

22‧‧‧Fixed wall

221‧‧‧Closed hole

23‧‧‧stop wall

231‧‧‧ Covering Department

232‧‧‧Limited Department

24‧‧‧ force pieces

25‧‧ ‧ room

3‧‧‧ skin

4‧‧‧bend needle

41‧‧‧Connecting section

42‧‧‧Needle section

5‧‧‧ casing

D‧‧‧Input direction

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a schematic diagram illustrating a conventional butterfly looper piercing a patient's skin; FIG. 2 is a A schematic view showing the case where the butterfly looper is pulled out of the patient's skin by the two flaps of the butterfly looper; FIG. 3 is an exploded perspective view showing an embodiment of the novel safety needle cover; Is a partial side view showing a receiving unit of the embodiment in a deployed position; FIG. 5 is a partially enlarged cross-sectional view for explaining the receiving unit; FIG. 6 is a partial side view showing the receiving unit in a Figure 7 is a partial perspective view showing the operation mode of a sliding unit of the embodiment sliding from the deployed position to a folding position with respect to the receiving unit; Figure 8 is a partial side view illustrating the sliding The process of sliding the unit from the deployed position to the collapsed position relative to the receiving unit; and FIG. 9 is a partial side view illustrating the sliding unit in the collapsed position.

Claims (9)

A safety needle sleeve adapted to be placed on a curved needle piercing a skin, defining a direction of insertion toward the skin, the curved needle comprising a connecting section extending perpendicularly to the insertion direction, and a self-joining One end of the segment is bent and extended along the insertion direction and is used for piercing the needle segment of the skin. The safety needle cover comprises: a sliding unit adapted to be detachably attached to the skin and comprising a base, suitable for Provided for the connecting section of the curved needle, and having two sides respectively located on opposite sides of the engaging section, two fins extending outward from the sides, and adapted to be attached to the skin, and a movement a shaft is disposed on a side of the side near the needle segment; and a receiving unit is slidably sleeved on the moving shaft, and includes two sliding walls respectively disposed at opposite ends of the moving shaft Each sliding wall is formed with a sliding slot for sliding the sliding unit in a direction opposite to the insertion direction, and each sliding slot has a locking portion for accommodating the moving shaft so as not to slide outwardly, and Connecting the engaging portion and having a smaller diameter than the engaging portion a sliding section that is gradually widened away from the engaging portion, and a fixed wall that engages the sliding wall away from the side of the flaps and cooperates with the sliding walls to define a receiving base The movable shaft is disposed at an end of the sliding slot away from the engaging portions, so that the sliding unit is slidable relative to the receiving unit from a deployed position in which the needle segment is exposed The moving shaft is located in the engaging portions, and the needle segment is accommodated in the folding position in the chamber. The safety needle sleeve according to claim 1, wherein each of the sliding grooves further has a pivoting portion for connecting the sliding portion away from the engaging portion, and a pivoting portion for the moving shaft to pass through, the moving shaft is disposed In the pivoting portion, the receiving unit is pivotable relative to the sliding unit between the deployed position and a overlapping position in which the base is substantially accommodated in the housing. The safety needle sleeve of claim 1, wherein the receiving unit further comprises a blocking wall that engages the fixing wall from a side of the sliding wall adjacent to the engaging portions, the blocking wall has a connection The cover portion of the sliding wall and a limiting portion extending from the cover portion away from the fixed wall for the base to resist. The safety needle cover of claim 1, wherein the sliding unit further comprises a fastening member extending from the base opposite to the insertion direction, the fixing wall forming a fastening member for the fastening member to be worn Fixed snap hole. The safety needle sleeve of claim 4, wherein the fastening member has a through portion connected to the base, and a side of the through portion away from the base extends in a direction perpendicular to the insertion direction The hooking department. The safety needle sleeve according to claim 2, wherein the accommodating unit further comprises two urging members extending outward from the side of the sliding wall adjacent to the pivoting portions, respectively. A safety needle guard according to claim 1, wherein each of the flaps has a skin facing the skin and is adapted to be slip-resistantly attached to the slip surface of the skin. The safety needle sleeve of claim 1, wherein the base is formed with a passage suitable for the looper to be inserted, the passage having a small aperture section adapted for the engagement section to pass through, and a connection The small aperture section has a diameter larger than the small aperture section and is adapted to accommodate a large aperture section of a sleeve disposed in the engagement section. The safety needle cover of claim 8, wherein the base is further formed with an end of the passage adjacent to the moving shaft extending in the insertion direction and penetrating the base, and is adapted to receive a portion of the needle segment. The needle hole.