TWI768628B - Safety Needle - Google Patents

Abstract

A safety needle, comprising an elastic upper connecting piece, a lower connecting piece located below the upper connecting piece and engaging with the upper connecting piece, and a needle-shaped injection piece connected to the upper connecting piece , and a tension member connecting the upper connecting piece and the lower connecting piece and surrounding the injection piece. The stretching member can extend up and down between a condensing position and a stretching position. When the tension member is in the retracted position, the tension member is located within the lower connection member, and the lower connection member and the upper connection member can be positioned relative to each other. When the stretching member is in the stretching position, the stretching member is stretched in a direction away from the lower connecting member, and forms a protective space connected with the lower accommodating space and surrounding the injection member. The tensile member can prevent the injection member from injuring medical personnel, so as to maintain a safe medical environment.

Description

Safety Needle

The present invention relates to a needle, in particular to a safety needle.

There are many types of occupational injuries for medical personnel, among which, needle stick is the most common, which often occurs when an injection needle is pulled out from a patient, and medical personnel are accidentally injured due to improper operation. On the other hand, for waste management personnel, injuries and infections may also be caused in the process of sorting out the injection needles after use. If the practitioners do not have appropriate antibody protection, there is a high risk of infection, and subsequent inspection and treatment will also will be a considerable expense. Therefore, based on the consideration of occupational safety and health, it is urgent to avoid the danger of medical personnel when they are engaged in medical work, and how to remove the unsafe hazard factors such as needle sticking. Therefore, the above deficiencies need to be improved.

Therefore, the purpose of the present invention is to provide a safety needle tool for preventing needle sticking.

Therefore, the safety needle of the present invention is suitable for puncturing an affected part, and includes an upper connecting piece, a lower connecting piece arranged below the upper connecting piece, and a lower connecting piece arranged on the upper connecting piece. An injection part of the upper connecting part, and a stretching part connecting the upper connecting part and the lower connecting part. The upper connecting member includes an upper cover and two elastic upper connecting portions extending downward from the outer periphery of the upper cover along an axial direction. The upper cover forms an injection channel for external injection of substances. Each upper link deflects inward when compressed and resets when decompressed. The lower connecting piece is used to abut the affected part, and includes a receiving ring surrounding the lower accommodating space, and two extending upwards along the axial direction from the outer periphery of the receiving ring and can be mutually engaged with the upper connecting part a lower connecting part, a gasket arranged on the bottom of the receiving ring and used to abut the affected part, and a lower cover arranged on the bottom of the gasket and clamping the gasket with the receiving ring. The lower accommodating space extends downward along the axial direction. The lower cover forms an auxiliary hole. The injection part communicates with the injection channel, extends downward along the axial direction from the upper connecting part, and can puncture the affected part through the lower accommodating space and the auxiliary hole. The stretching member surrounds the injection member, and the stretching member can extend up and down between a condensing position and a stretching position along the axial direction. When the stretching member is in the condensed position, the stretching member is located in the lower accommodating space, and the lower connecting portion prevents the upper connecting portion from moving upward to be mutually positioned. When the stretching member is in the stretching position, the stretching member is stretched in a direction away from the lower connecting member, surrounds the injection member, and forms a space that communicates with the lower accommodating space and accommodates the injection member. Protected space.

The effect of the present invention is that when the injection part is operated to pull out the affected part, it is only necessary to press on the upper connecting part to swing inwardly, so that the upper connecting part and the lower connecting part can be separated, and the upper connecting part can be operated. The element drives the stretching element to stretch along the axial direction. through The stretching member surrounds the injection member in the stretched position, and then blocks the injection member to avoid physical injury and the risk of infection, so as to achieve a safer and hygienic environment during medical practice or disposal of waste.

1: upper connector

10: Upper accommodation space

11: upper cover

110: Injection channel

111: Cover body

112: top surface

113: Underside

114: Perforation

115: Extensions

116: Vertical segment

117: Horizontal segment

12: Surrounding the Wall

13: Upper connecting part

131: Pressing segment

132: Buckle

2: lower connector

20: Lower accommodation space

21: Undertaking ring

210: Positioning hole

211: The first half

212: Second half

22: Lower connector

220: Groove

23: Gasket

230: Through hole

24: Lower cover

240: Auxiliary hole

241: Positioning post

3: Injection parts

31: Straight line segment

32: Bend segment

4: stretch pieces

40: Protective space

41: Protection ring

411: Ring Body Department

412: Upper convex part

413: Lower convex part

414: Reed

A: Affected part

B: Injection tube

L: axial direction

Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein: FIG. 1 is a schematic diagram illustrating that a first embodiment of a safety needle of the present invention is punctured in an affected part; FIG. 2 is a A cross-sectional view from a front perspective, illustrating an upper connecting piece, a lower connecting piece, an injection piece, and a stretching piece of the first embodiment; FIGS. 3 and 4 are incomplete side cross-sectional views, respectively illustrating the The tension member is in a condensed position and a tension position; Fig. 5 is a schematic diagram illustrating the steps of operating the upper connecting member to separate the lower connecting member; and Fig. 6 is an incomplete side sectional view illustrating the present invention A second embodiment of a safety needle.

Referring to FIG. 1 to FIG. 3, it is a first embodiment of the safety needle of the present invention, It is suitable for puncturing down an affected part A along an axial direction L, and the affected part A usually refers to the body part of the patient to be injected, such as the chest or the armpit, but not limited thereto. The first embodiment includes an upper connecting piece 1 , a lower connecting piece 2 disposed below the upper connecting piece 1 , an injection piece 3 disposed on the upper connecting piece 1 , and a connecting piece 1 connecting the upper connecting piece 1 with The tensile member 4 of the lower connecting member 2 .

The upper connector 1 includes an upper cover 11 , a surrounding wall 12 extending downward along the axial direction L from the bottom of the upper cover 11 , and two extending downward along the axial direction L from the outer periphery of the upper cover 11 and The upper connecting portion 13 is located outside the surrounding wall 12 . The upper cover 11 has an arc-shaped top surface 112 and a bottom surface 113 opposite to the top surface 112 and cooperating with the surrounding wall 12 to define a downwardly opening upper accommodating space 10 . Wherein, the upper cover 11 forms an injection channel 110 for externally connecting an injection tube B, so as to facilitate the delivery of medical substances. Each upper connecting portion 13 has a pressing section 131 for medical personnel to operate, and a buckle 132 located below the pressing section 131 and extending horizontally outward. Each upper connecting portion 13 has elasticity so as to be able to swing inward when being pressed, and reset when releasing the pressure.

The lower connector 2 includes a receiving ring 21 surrounding a lower accommodating space 20 extending downward along the axial direction L, and two lower connecting members extending upward along the axial direction L from the outer periphery of the receiving ring 21 The connecting portion 22 , a gasket 23 disposed on the bottom of the receiving ring 21 and used to abut the affected part A, and a lower cover disposed on the bottom of the gasket 23 and clamping the gasket 23 with the receiving ring 21 twenty four. The receiving ring 21 has an upper half section 211 and a lower half section extending downward from the upper half section 211 and having an outer diameter smaller than the upper half section 211 212, the bottom of the upper half section 211 is formed with four positioning holes 210 opened along the axial direction L (two are respectively shown in FIG. 2 and FIG. 3 due to the angle of view). Each lower connecting portion 22 corresponds to one of the corresponding upper connecting portions 13 , and forms an embedding groove 220 for the corresponding buckle 132 to be embedded and positioned relative to each other. The gasket 23 is sleeved around the lower half section 212, and is pressed against the bottom of the upper half section 211, and four through holes 230 corresponding to the corresponding positioning holes 210 are formed (Fig. 2 and Fig. 3 because of Two angles are shown each). The lower cover 24 forms an auxiliary hole 240 which opens along the axial direction L and communicates with the lower accommodating space 20 . The lower cover 24 has four arranged around the auxiliary hole 240 and respectively passes through the positioning holes 210 and the through holes 230, and is fixed to the positioning posts 241 of the receiving ring 21 by plastic welding (Fig. 2 and FIG. 3 each show two because of the angle of view). The receiving ring 21 and the lower cover 24 are fixed by means of plastic welding, such as: hot air welding, extrusion plastic welding, heating knife or hot wedge plastic welding, laser welding, rotational friction welding, heat conduction welding, and high Frequent welding can avoid the situation that the amount of glue is difficult to control and the glue overflow is easy to occur when using the glue bonding method, and it can avoid the waste of glue material without a large amount of material preparation at the process end. Among them, it is preferably fixed by ultrasonic bonding, and ultrasonic waves are emitted through two jigs (not shown) respectively contacting the receiving ring 21 and the lower cover 24, so that the receiving ring 21 and the lower cover 24 can be In a molten state, the positioning posts 241 are filled in the positioning holes 210, and after rapid cooling, they can be integrated with the receiving ring 21 to complete the fixing, thereby further shortening the working time, and the process will not affect the Gaskets 23 or other elements to avoid thermal deformation or chemical changes.

The injection member 3 is disposed on the upper cover 11 to communicate with the injection channel 110 , and extends downward from the upper connecting member 1 along the axial direction L to form a needle shape, and can pass through the lower accommodating space 20 and the auxiliary hole 240 to puncture the affected part A. It should be noted that the diameter of the auxiliary hole 240 is slightly larger than the outer diameter of the injection member 3, so that the injection member 3 can maintain concentricity by passing through the auxiliary hole 240 located above the affected part A. This prevents the occurrence of skew, so that the affected part A can be accurately punctured. In addition, it should be noted that the injection member 3 can be a straight needle extending in a straight line, but the first embodiment is not limited to this. A curved needle (not shown) with one end slightly swayed is formed, so that the medical personnel can easily operate and place the needle on the affected part A.

Referring to FIG. 2 to FIG. 4 , the tensile member 4 includes three guard rings 41 that are butted along the axial direction L and communicated with each other. The uppermost protection ring 41 is connected to the upper connector 1 and is located in the upper accommodating space 10 , and the lowermost protection ring 41 is connected to the lower connector 2 . The outer diameter of each guard ring 41 is smaller than the inner diameter of the guard ring 41 connected below, and has a ring body portion 411 surrounding the injection part 3 , a ring body portion 411 extending radially inward from the top edge of the ring body portion 411 . The upper protruding portion 412, a lower protruding portion 413 extending radially outward from the bottom edge of the ring body portion 411, and two extending obliquely downward along the axial direction L from the outer periphery of the ring body portion 411 and located on the upper Reed 414 between the convex portion 412 and the lower convex portion 413 . Any upper protrusion 412 can block the lower protrusion 413 of the guard ring 41 located above to move upward along the axial direction L, so as to restrict the guard ring 41 located above from not being able to move up. The axial direction L is separated by the guard ring 41 located below. Each reed 414 is resilient, deflects inward when compressed, and resets when released.

It should be noted that the stretching member 4 can be driven by the upper connecting member 1 to expand and contract up and down along the axial direction L between a condensing position and a stretching position. As shown in FIG. 2 and FIG. 3 , when the tension member 4 is in the retracted position, the upper connecting member 1 abuts the lower connecting member 2 , and the protective rings 41 are concentric circles as shown in FIG. 2 . Arrange and accommodate in the lower accommodating space 20, and operate the snaps 132 to be embedded in the embedding grooves 220 respectively, so that the lower connecting parts 22 prevent the upper connecting parts 13 from moving upwards. Positioning each other to avoid accidental twitching of the upper connecting member 1 to cause the injection member 3 to be separated from the affected part A, the springs 414 of each guard ring 41 will contact the ring body of the guard ring 41 on the periphery in the radial direction the inner wall of the part 411 . As shown in FIG. 4 , when the stretching member 4 is in the stretching position, the upper connecting member 1 moves away from the lower connecting member 2 and drives the stretching member 4 to stretch along the axial direction L, so that each The upper protruding portion 412 of the guard ring 41 blocks against another lower protruding portion 413 of the guard ring 41 . The protection rings 41 together surround the injection part 3 and form a protection space 40 that communicates with the lower accommodating space 20 and accommodates the injection part 3 . The springs 414 of each protection ring 41 are released toward the The outer deflection is reset, and can block the upper convex portion 412 of the protection ring 41 located below. The lower protruding portion 413 of each guard ring 41 cooperates with the springs 414, thereby further restricting the movement of the guard ring 41 located below, so that the guard rings 41 limit each other to avoid the The stretching member 4 is condensed again to expose the injection member 3, resulting in the risk of needle sticking.

Referring to FIG. 5 and in conjunction with FIG. 1 and FIG. 3 , when the first embodiment is used to puncture the affected part A, the stretching member 4 is in the retracted position, the upper connecting member 1 and the lower connecting member 2 are engaged with each other and are used for medical treatment Person holding. The medical staff punctures the injection part 3 into the affected part A until the gasket 23 abuts against the affected part A, and connects the injection tube B to the injection channel 110 to deliver the medical substance, and then delivers the medical substance to the affected part through the injection part 3 Affected part A, the injection can be completed. When pulling out the first embodiment from the affected part A, press the gasket 23 or the lower connecting parts 22 with one hand, and press the upper connecting parts 13 with the other hand to keep the buckles 132 away from the embedding grooves 220 , That is, the upper connecting member 1 can be operated to move upward and the stretching member 4 can be stretched along the axial direction L, so that the protective rings 41 can be arranged along the axial direction L to form the protective space 40 . The protective space 40 completely accommodates the injection part 3 to avoid needle sticking. It is particularly noted that, as shown in FIG. 5 , since the direction of force for pressing the upper connecting parts 13 is different from the axial direction L, the injection can be avoided when the upper connecting part 1 is operated to separate the lower connecting part 2 . The shaking of the element 3, and it is less likely to exert too much force to pull the needle along the axial direction L to cause danger, that is to say, the medical personnel can stably operate the stretching element 4 to stretch, and at the same time the injection element 3 Pull out the affected part A. For patients, it is a safer medical practice and can prevent the occurrence of secondary injuries.

It should also be noted that, referring to FIG. 1 and FIG. 2 , when the first embodiment is punctured in the affected part A, the top surface 112 of the upper cover 11 is designed in an arc shape, which can effectively lift the film or tape (not shown in the figure). (shown), thereby improving the effect of the first embodiment of the present invention being fixed on the affected part A. In addition, the design of the auxiliary holes 240 of the lower cover 24 can The concentricity and stability of the injection part 3 when puncturing or pulling out of the affected part A are further improved, so as to prevent the injection part 3 from being skewed during the operation and causing secondary injury.

Referring to FIG. 6 , it is a second embodiment of the safety needle according to the present invention. The difference from the first embodiment is that the upper cover 11 has a cover portion 111 connecting the surrounding wall 12 and the upper connecting portion 13 . and an extension portion 115 that can be assembled to connect the cover portion 111 and form the injection channel 110 for the injection member 3 to be disposed. The cover portion 111 has the top surface 112 and the bottom surface 113 , and forms a through hole 114 extending from the top surface 112 to the bottom surface 113 and through which the injection member 3 can penetrate. The extension portion 115 has a vertical section 116 extending along the axial direction L and passing through the through hole 114 , and a horizontal section extending from the vertical section 116 along the vertical direction L and for setting the injection tube B 117. The injection part 3 has a straight section 31 for puncturing the affected part A (as shown in FIG. 5 ), and a straight section 31 which is bent and extended and fixed in the injection channel 110 by means of glue, and Connected to the curved section 32 of the syringe B.

When assembling the second embodiment, the bent shape of the curved section 32 is designed to be fixed in the vertical section 116 and the horizontal section 117, so as to prevent the glue used during fixing from overflowing and sealing the The communication port between the injection part 3 and the injection channel 110 . In addition, the cover part 111 and the extension part 115 are separated from each other when leaving the factory, so that the yield inspection can be carried out separately, such as whether the adhesive is sealed at the communication port between the injection part 3 and the injection channel 110 . , to avoid the occurrence of defective products leaving the factory, so that the assembled second embodiment can be used by medical personnel with peace of mind.

To sum up, the safety needle device of the present invention can prevent the occurrence of needle sticking and other situations through the blocking of the protective rings 41 , thereby achieving a safer and hygienic environment. In addition, the connection mechanism between the upper connection parts 13 and the lower connection parts 22 makes the operation more stable and easier for medical personnel, and can also avoid the situation of secondary injury caused by excessive force, so it can indeed be achieve the purpose of the present invention.

However, the above is only the first embodiment of the present invention, which should not limit the scope of implementation of the present invention. Any simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the contents of the patent specification are all applicable. It still falls within the scope of the patent of the present invention.

1: upper connector

10: Upper accommodation space

11: upper cover

110: Injection channel

112: top surface

113: Underside

12: Surrounding the Wall

13: Upper connecting part

131: Pressing segment

132: Buckle

2: lower connector

21: Undertaking ring

210: Positioning hole

211: The first half

212: Second half

22: Lower connector

220: Groove

23: Gasket

230: Through hole

24: Lower cover

240: Auxiliary hole

241: Positioning post

3: Injection parts

4: stretch pieces

414: Reed

L: axial direction

Claims (9)

A safety needle is suitable for puncturing an affected part, and comprises: an upper connecting piece, including an upper cover, and two elastic upper connecting parts extending downward along an axial direction from the outer periphery of the upper cover, the upper cover forming An injection channel for external injection of substances, each upper connecting part will deflect inwards when it is pressed and reset when the pressure is released; The affected part includes a receiving ring that surrounds and forms a lower accommodating space, two lower connecting parts that extend upward along the axial direction from the outer periphery of the receiving ring and can be mutually engaged with the upper connecting part, and one that is arranged on the The bottom of the receiving ring is used to abut the affected part, and a lower cover is arranged on the bottom of the gasket and clamps the gasket with the receiving ring, and the lower accommodating space faces downward along the axial direction extension, the lower cover forms an auxiliary hole; an injection piece is arranged on the upper connecting piece and communicates with the injection channel, and extends downward along the axial direction from the upper connecting piece, and can be connected with the lower accommodating space through the lower accommodating space The auxiliary hole is punctured in the affected part; and a stretching piece is connected to the upper connecting piece and the lower connecting piece and surrounds the injection piece, and the stretching piece can be in a condensed position along the axial direction and a pulling piece When the stretching member is in the retracted position, the stretching member is located in the lower accommodating space, and the lower connecting portion prevents the upper connecting portion from moving upward and is positioned relative to each other. When the stretcher is in the stretched position, the stretcher stretches in a direction away from the lower connecting piece, surrounds the injection piece, and forms a protective space that communicates with the lower accommodating space and accommodates the injection piece. The safety needle according to claim 1, wherein each upper connecting portion has a clasp extending in a horizontal direction away from the injection part, and each lower connecting portion forms a corresponding clasp for embedding the clasp. Groove. The safety needle according to claim 1, wherein the receiving ring has an upper half, and a lower half extending downward from the upper half and having an outer diameter smaller than the outer diameter of the upper half, the The bottom of the upper half is formed with a plurality of positioning holes opened along the axial direction, the gasket is sleeved on the lower half and abuts against the bottom of the upper half, and a plurality of through holes corresponding to the same positioning holes are formed. The lower cover has a plurality of positioning posts arranged around the auxiliary hole and respectively passing through the positioning holes and the through holes. The positioning posts can be fixed to the receiving ring by plastic welding. The safety needle according to claim 3, wherein the positioning posts are fixed to the receiving ring by means of ultrasonic bonding. The safety needle according to claim 1, wherein the upper cover has an arc-shaped top surface away from the lower connecting piece. The safety needle according to claim 5, wherein the upper cover further has a bottom surface opposite to the top surface and facing the lower connecting piece, and the upper connecting piece further includes a bottom surface extending downward along the axial direction from the bottom surface The surrounding wall cooperates with the bottom surface to define an upper accommodating space that can communicate with the lower accommodating space and accommodate the stretching element when the stretching element is in the retracted position. The safety needle according to claim 1, wherein the stretching member includes a plurality of guard rings that are butted along the axial direction and communicated with each other to define the guard space in the stretched position, and the uppermost guard ring The guard ring is connected to the upper connecting piece, the guard ring located at the bottom is connected to the lower connecting piece, each The outer diameter of the protection ring is smaller than the inner diameter of the lower protection ring, and when the stretching member is in the condensed position, the protection rings are arranged in concentric circles and are accommodated in the lower accommodating space. The safety needle according to claim 7, wherein each protective ring has a ring body, an upper protrusion extending radially inward from the top edge of the ring body, and a radially extending from the bottom edge of the ring body A lower convex portion extending outward, and two elastic springs extending obliquely downward along the axial direction from the outer periphery of the ring body portion and located between the upper convex portion and the lower convex portion, and the upper The protruding portion resists the upward movement of the lower protruding portion of the upper guard ring along the axial direction, so as to restrict the upper guard ring from being separated from the lower guard ring along the axial direction. When the tension member is in the retracted position, each reed will contact the inner wall of the ring body portion of the outer guard ring, and when the tension member is in the extended position, each reed will deflect outwards The upper convex portion of the protection ring located below is blocked. The safety needle according to claim 1, wherein the upper cover has a cover body part connecting the upper connecting parts and forming a through hole for the injection part to penetrate; The injection channel is connected to the extension of the injection piece.

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