TWM509654U - Syringe needle protection device - Google Patents

Description

Needle protection device

This creation is about a protective device that completely shields the needle of the needle after use from the puncture of the medical staff.

It is necessary to provide a protective device on the injection needle based on the risk of protecting the medical staff from needle sticking of the used needle. Winged needles (such as butterfly needles, scalp needles, winged indwelling needles), such as the Republic of China patents M257833, M489646, M496494, these patent documents provide a cover, box, or cover structure to shield The needle body of the butterfly needle after use. In the case of M257833, a long opening of the front end is provided on one side of the sleeve body, and the single or double wings of the butterfly needle are folded in half, and the needle body 1 can be received in the sleeve body through the elongated opening. M489646 provides a covered box that houses the needle body and the lid closes the box. This type of safety device is slightly bulky and is placed over the infusion tube that is attached to the butterfly needle. The problem of sliding and shaking can affect the use of the butterfly needle. The M496494 provides a cover that fits over the needle holder. Pressing the cover down will shield the entire needle. The lid is opened upwards before the needle is used. However, the lid that is opened upwards obscures the sight of the medical staff using the butterfly needle and hinders the use of the butterfly needle.

The purpose of this creation is to provide an injection needle protection device that is in the injection After the needle is used, the needle body is completely shielded to prevent the needle from being exposed.

The injection needle protection device comprises a main body, the left and right sides of the main body are formed with a wing, the rear end of the main body is connected with a catheter, and the front end of the main body is connected with a needle body; the protection device comprises: a positioning a tube, the sleeve is fixed to the outside of the catheter; a first protection member and a second protection member are wrapped and positioned at an original position outside the positioning tube in a manner of connecting the upper and lower ends and the rear end; the original position is a protection member and a second protection member expose the needle body; the first protection member and the second protection member are movable along the positioning tube from the original position to a protection position, the first protection member of the protection position and The second protection member shields the needle body; further, the front end of the first protection member and the second protection member in the protection position are press-fitted relative to each other through the male and female fastening holes.

The first protection member and the second protection member in the original position do not affect the use of the injection needle.

After the injection needle is used, the needle body can be shielded by the first protection member and the second protection member, so that the used needle body can be prevented from punctuating the medical staff.

The interaction between the first protection member and the second protection member in the protection position ensures that the first protection member and the second protection member are pulled outward by the external force and cannot be reversed again. The means to lift the bond.

The positioning tube is a rectangular tube, which increases the stability of the first protection member and the second protection member.

The positioning tube is a rectangular tube, and the first protection member and the second protection member cooperate to reduce the thickness of the entire protection device, but maintain structural rigidity.

The action of moving the first protection member and the second protection member from the original position to the protection position can be operated by one hand.

The first protection member and the second protection member both have a texture guiding the moving direction and increasing the contact friction force, so that the grip of the operation is stabilized and the sliding hand is avoided.

The protection device can be applied to a scalp needle, a butterfly needle, or a winged indwelling needle.

1‧‧‧Injection needle

2‧‧‧protection device

11‧‧‧ Subject

12‧‧‧ wing

13‧‧‧ catheter

14‧‧‧ needle

20‧‧‧ Positioning tube

21‧‧‧stop

22‧‧‧Micro-bump points

23‧‧‧Auxiliary Department

30‧‧‧First protection

31‧‧‧ first board

311‧‧‧ lines

32‧‧‧First backend board

33‧‧‧First rear side panel

34‧‧‧ buckle

35‧‧‧Mid side panel

36‧‧‧ gap

37‧‧‧Sliding plate

38‧‧‧ Leading edge

39‧‧‧Glossy buckle

40‧‧‧Second protective parts

41‧‧‧Second plate

411‧‧‧ lines

42‧‧‧second backend board

43‧‧‧Second rear side panel

44‧‧‧ buckle

45‧‧‧bonding board

46‧‧‧ gap

47‧‧‧ Leading edge

48‧‧‧ socket

491‧‧‧ receiving holes

492‧‧‧Buckle hole

51‧‧‧ rectangular holes

The first figure is an exploded perspective view of the first perspective of the injection needle and the protection device.

The second figure is an exploded perspective view of the second perspective of the injection needle and the protection device.

The third figure is a combined appearance of the creation needle and the protection device, wherein the protection device is in the original position.

The fourth picture is a side view of the third figure.

The fifth drawing is a cross-sectional view of the third figure along the longitudinal axis direction.

The sixth figure is a combined appearance of the creation needle and the protection device, and the protection device is located at the protection position.

The seventh figure is a side view of the sixth figure.

The eighth drawing is a cross-sectional view of the sixth drawing along the longitudinal axis direction.

The ninth figure is a schematic view of the fastening of the protection device derived from the seventh figure.

In order to explain the central idea expressed in the column of the above creative content, Example expression. Various items in the embodiments are depicted in terms of ratios, dimensions, amounts of deformation, or displacements that are suitable for illustration, and are not drawn to the proportions of actual elements, as set forth above.

As shown in the first and second figures, the stereoscopic exploded view of the injection needle protection device of the present invention. The needle described herein is a winged needle, such as a butterfly needle, a scalp needle, or a winged indwelling needle. The injection needle 1 includes a main body 11 . The left and right sides of the main body 11 are formed with a fin 12 . The rear end of the main body 11 is connected to a conduit 13 . The front end of the main body 11 is connected to a needle body 14 . The drug solution is introduced into the human vein through the catheter 13 through a shaft hole (not shown) in the body 11 and the needle 14. The protection device 2 includes a positioning tube 20, a first protection member 30 and a second protection member 40.

As shown in the first to fifth figures, the positioning tube 20 is a rectangular tube, and the sleeve is fixed to the outside of the catheter 13. The outer wall of the positioning tube 20 is formed with a stop portion 21 by means of a difference in outer diameter. The positioning tube 20 is provided with a micro-bump point 22 near the left and right side walls of the stop portion 21, and the end of the positioning tube 20 has The auxiliary portion 23 that protrudes to both sides.

The first protection member 30 includes a horizontal first plate 31. The outer surface of the first plate 31 is provided with a pattern 311 which has both a slip-proof and a guiding movement direction. The rear end of the first plate 31 has a first rear end plate 32 which is vertically disposed on the left and right sides. The first plate 31 has a vertical first rear side plate 33 adjacent to the left and right sides of the rear end. A buckle 34 is provided on the outer surface of the rear side plate 33. The first plate 31 is provided with a vertical middle side plate 35 on the left and right sides of the intermediate portion, and a notch 36 is formed between the middle side plate 35 and the first rear side plate 33. The first plate 31 has a vertical sliding plate 37 on the left and right sides of the front end, and the front edge and the bottom edge of the two sliding plates 37 are connected to form an arcuate guiding edge 38, and the two sliding plates 37 are The outer surface is provided with a buckle 39.

The second protection member 40 includes a horizontal second plate 41. The outer surface of the second plate 41 is provided with a pattern 411 which has both a slip prevention and a guiding movement direction. The rear end of the second plate 41 has a second rear end plate 42 which is vertically disposed on the left and right sides. The second plate 41 is close to the left and right sides of the rear end. Each has a vertical second rear side plate 43, and a second hook 43 is provided on the outer surface of the second rear side plate 43. The left and right sides of the second plate 41 extend from the intermediate portion to the front end of each of the vertical fastening plates 45. A gap 46 is formed between the fastening plate 45 and the second rear side plate 43. The front of the fastening plate 45 is formed. The inner edge of the two fastening plates 45 is provided with a receiving groove 48, and an interface of the second plate 41 and the second fastening plate 45 is respectively provided with an elongated receiving hole 491. A fastening hole 492 is respectively disposed at a boundary between the two fastening plates 45 and the second plate 41.

As shown in the third to fifth figures, the buckle of the first protection member 30 and the second protection member 40 44 is fastened to each other such that the first protection member 30 and the second protection member 40 are oppositely combined to cover one of the outer positions of the positioning tube 20. When the first protector 30 and the second protector 40 are in the home position, the needle body 14 of the injection needle 1 is exposed. The original position refers to the gap between the stop portion 21 of the positioning tube 20 and the main body 11 of the injection needle 1. The first rear end plate 32 and the second rear end plate 42 of the first protection member 30 and the second protection member 40 are respectively located between the stopping portion 21 of the positioning tube 20 and the micro convex point 22, so that the first The protector 30 and the second protector 40 are restrained in the above-described original position, and the first protector 30 and the second protector 40 do not easily slide away from the original position without the action of the forward thrust. Moreover, the notches 36, 46 of the first protection member 30 and the second protection member 40 are connected to each other to form a rectangular hole 51. The fastening plate 45 of the second protection member 40 is opposite to the sliding plate 37 of the first protection member 30, and the fastening plate 45 is outside the sliding plate 37. The receiving groove 48 of the fastening plate 45 receives the buckle 39 of the first protection member 40.

As shown in the sixth, seventh and eighth figures, the needle body 14 should be covered and protected when the needle is used. So as not to poke the medical staff. The positioning tube 20 can be pulled back, or the first protection member 30 and the second protection member 40 can be pushed forward. In short, the first protection member 30 and the second protection member 40 and the positioning tube 20 are respectively generated before and after. Displacement from each other. This action can be operated with one hand, the user's thumb The first protection member 30 and the second protection member 40 can be pushed up and down with the index finger, and the palm of the user contacts the rear end of the positioning tube 20, and the middle finger or the ring finger can contact the auxiliary portion 23 of the positioning tube 20, The positioning tube 20 is pushed back. When the displacement starts, since the micro-bump point 22 of the positioning tube 20 has an interference relationship with the first rear end plate 32 and the second rear end plate 42 of the first protection member 30 and the second protection member 40, a slight increase is required. Applying force to enable the first rear end plate 32 and the second rear end plate 42 to pass the micro-bump point 22 to release the interference relationship, and the first protection member 30, the second protection member 40 and the positioning tube 20 can be separated from each other. Displacement. Then, the front ends of the first protection member 30 and the second protection member 40 pass over the fins 12 of the injection needle 1 by the guiding edges 38, 47. When the slider plate 37 and the center side plate 35 of the first protection member 30 and the second protection member 40 the buckle plate 45 pass through the blade 12, the first protection member 30 and the second protection member 40 are The thickness of 12 is slightly expanded up and down. After passing through the flap 12, the flap 12 enters the rectangular hole 51 formed by the notches 36, 46 of the first protection member 30 and the second protection member 40. At this point, the first protection member 30 and the second protection member 40 enter a protective position, that is, the first protection member 30 and the second protection member 40 completely shield the needle body 14. The flap 12 passes through the front and rear stops of the first rear side panel 33 and the second rear side panel 43 and the middle side panel 35 and the fastening panel 45 in the rectangular hole 51, so that the first protection member 30 and the second protection member 40 are restricted. At this protection position, no further movement can be made, so that the shielded needle body 14 is no longer revealed.

As shown in the ninth figure, one of the first protection member 30 and the second protection member 40 is placed in a protective position. The interlocking action can ensure that the first protection member 30 and the second protection member 40 are pulled outward by the external force. The user presses the thumb and the index finger relative to the first protection member 30 and the second protection member 40, so that the buckle 39 of the sliding plate 37 of the first protection member 30 can pass through the receiving groove 48 of the second protection member 40. The outer side surface of the protruding buckle 39 is inclined, so that the protruding buckle 39 can be guided through the groove wall of the receiving groove 48, and the sliding plate 37 of the first protecting member 30 is relatively pressed. The slider plate 37 and the buckle 39 are passed through the inner side of the fastening plate 45 of the second protection member 40 until the buckle 39 enters the fastening hole 492, and the buckle 39 is fastened to the fastening hole 492. The guiding edge 38 of the sliding plate 37 of the first protection member 30 enters the receiving hole 491 of the second protection member 40, thereby forming the first protection member 30 and the second protection member 40 interlocking with each other in the protection position. Relationship. In this relationship, the leading edge of the first plate 31 of the first protection member 30 is curved in an arc shape. Once the deduction relationship is established, the deductive relationship can no longer be released by means of a reverse.

1‧‧‧Injection needle

2‧‧‧protection device

12‧‧‧ wing

13‧‧‧ catheter

14‧‧‧ needle

20‧‧‧ Positioning tube

21‧‧‧stop

22‧‧‧Micro-bump points

23‧‧‧Auxiliary Department

30‧‧‧First protection

31‧‧‧ first board

311‧‧‧ lines

32‧‧‧First backend board

33‧‧‧First rear side panel

34‧‧‧ buckle

35‧‧‧Mid side panel

36‧‧‧ gap

37‧‧‧Sliding plate

38‧‧‧ Leading edge

39‧‧‧Glossy buckle

40‧‧‧Second protective parts

41‧‧‧Second plate

42‧‧‧second backend board

43‧‧‧Second rear side panel

44‧‧‧ buckle

45‧‧‧bonding board

46‧‧‧ gap

47‧‧‧ Leading edge

48‧‧‧ socket

492‧‧‧Buckle hole

491‧‧‧ receiving holes

Claims (6)

An injection needle protection device, the injection needle comprises a main body, the left and right sides of the main body are formed with a wing, the rear end of the main body is connected with a catheter, and the front end of the main body is connected with a needle body; the protection device comprises: a positioning tube The sleeve is fixed to the outside of the catheter; the outer wall of the positioning tube has a protruding stop; a first protection member includes a horizontal first plate, the first plate is close to the left and right sides of the rear end Each of the first rear side panels is provided with a buckle ring; the first panel is provided with a middle side panel on the left and right sides of the intermediate portion, and the middle side panel to the first rear side panel A gap is formed between the first plate and the left side of the front plate, and a sliding button is disposed on each of the outer surfaces of the two sliding plates. The front edge and the bottom edge of the sliding plate are connected to each other. The second protective member includes a horizontal second plate, and the second plate has a second rear side plate adjacent to the left and right sides of the rear end, and an outer surface of the second rear side plate is provided a hook; the left and right sides of the second plate extend from the middle portion to the front end a fastening plate, a gap is formed between the fastening plate and the second rear side plate, the front edge of the fastening plate is an arc-shaped guiding edge, and the inner side surfaces of the two fastening plates are respectively provided with a receiving groove, and the two fastening plates are respectively a fastening hole is respectively disposed at the boundary of the second plate; the first protection member and the second protection member are oppositely combined with one of the original positions of the positioning tube; the original position refers to the stop of the positioning tube And the buckle of the first protection member and the buckle of the second protection member are fastened to each other, and the notches of the first protection member and the second protection member are connected to each other to form a rectangular hole. , the second protective member of the buckle plate and The sliding plate of the first protection member is oppositely positioned, and the fastening plate is located outside the sliding plate, and the receiving groove of the fastening plate receives the buckle of the first protection member; the first protection member and the second protection The piece can be moved from the original position to a protection position; the first protection member and the second protection member of the protection position shield the needle body of the injection needle; the flap of the injection needle is located in the rectangular hole; The first plate and the second plate pass through the receiving groove and are snapped into the fastening hole, so that the first protection member and the second protection member are fastened to each other in the protection position relationship. The needle protection device according to claim 1, wherein the positioning tube is a rectangular tube. The needle protection device according to the first aspect of the invention, wherein the positioning tube has a micro-bump point on each of the left and right side walls of the stopping portion, and the rear end of the first plate has a branching end a first rear end plate of the left and right sides, the rear end of the second plate has a second rear end plate disposed on the left and the right side; in the original position, the first rear end plate and the second rear end plate They are respectively located between the stop portion of the positioning tube and the micro-bump point. The needle protection device according to claim 1, wherein the end of the positioning tube has an auxiliary portion that protrudes to both sides. The needle protection device according to claim 1, wherein the outer surfaces of the first plate and the second plate are provided with a pattern having both a slip prevention and a guiding movement direction. The injection needle protection device of claim 1, wherein an interface of the second plate and the second fastening plate is respectively provided with an elongated receiving hole, and the first protection member and the second protection member are respectively In the above fastening relationship, the guiding edge of the sliding plate of the first protecting member enters the receiving hole of the second protecting member.