CN215821980U

CN215821980U - Anti-needling sheath

Info

Publication number: CN215821980U
Application number: CN202122080366.2U
Authority: CN
Inventors: 谷瑞娜; 蔡永鹏; 陈琳
Original assignee: Henan Zhongxiu Medical Devices Co ltd
Current assignee: Henan Zhongxiu Medical Devices Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-02-15
Anticipated expiration: 2031-08-31

Abstract

A puncture-proof sheath relates to the field of medical equipment and comprises a fixing ring and a protective cover. The inner wall of the fixing ring is provided with a slot, the outer wall of the needle seat of the existing blood taking needle is provided with a convex edge, and the convex edge can be inserted into the slot to combine the anti-acupuncture sheath with the existing blood taking needle. The bottom of protection casing passes through flexible kink with solid fixed ring's lateral wall and is connected. Before the blood taking needle is used and after the blood taking needle is used, the needle head can be quickly and conveniently covered by the protective cover, and accidental acupuncture is effectively prevented. In addition, the protruding hook tooth portion that is equipped with of inner wall of protection casing, the height of hook tooth portion is equivalent with solid fixed ring's last reason, and hook tooth portion can form the joint with solid fixed ring's last reason and fix the protection casing when double-end needle tubing gets into and holds the chamber. Through the fixation of the hook tooth part, the rapid fixation and the fixation removal of the protective cover can be realized, medical personnel can conveniently operate through a single hand, and the convenience of operation is improved.

Description

Anti-needling sheath

Technical Field

The utility model relates to the field of medical equipment, in particular to a puncture-preventing sheath.

Background

Syringes and blood collection needles are commonly used medical consumables, and in order to avoid being punctured by a needle, a protective sleeve (protective cover) is usually required to be arranged at the position of the needle in the use process of the syringes and the blood collection needles. The protective sleeve in the prior art adopts a split design, and an independent cover body is sleeved outside a needle head to form protection. However, the cover body is easy to fall off and lose, and the cover body needs to be operated by two hands for dismounting and mounting. The prior art also has a small amount of design of disjunctor formula safety cover, but all has the structure complicacy, and the operation is not convenient, can't use with the syringe needle adaptation on the current market problem. Therefore, it is necessary to develop a puncture-proof sheath with good safety performance and convenient operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a puncture-proof sheath which is simple in structure and convenient to operate, and due to the design of an integrated protective cover, the use safety is improved, and accidental puncture is avoided. And it can be adapted for use with needles on the market.

The embodiment of the utility model is realized by the following steps:

a needlestick prevention sheath, comprising:

the inner wall of the fixing ring is provided with a slot matched with the needle seat of the blood taking needle, and the slot is arranged along the axial direction of the fixing ring;

the protective cover is internally provided with an accommodating cavity for accommodating the double-head needle tube of the blood taking needle, the side wall of the protective cover is provided with an opening for the double-head needle tube to pass through, and the bottom end of the protective cover is connected with the side wall of the fixed ring through a flexible bending part; the protruding hook tooth portion that is equipped with of inner wall of protection casing, the height of hook tooth portion is equivalent with solid fixed ring's last reason, and hook tooth portion can form the joint with solid fixed ring's last reason and fix the protection casing when the double-end needle tubing gets into and holds the chamber.

Further, in other preferred embodiments of the present invention, the number of the slots is plural, and the plural slots are arranged at intervals along the circumferential direction of the fixing ring.

Further, in other preferred embodiments of the present invention, the insertion slot includes an insertion end into which the needle holder is inserted; from the insertion end, the width of the slot is gradually reduced along the length direction of the slot.

Further, in other preferred embodiments of the present invention, the flexible bending portion is a thin sheet, the flexible bending portion is disposed in a plane perpendicular to the axis of the needle seat, one end of the flexible bending portion in the length direction is connected to the outer side of the fixing ring, and the other end is connected to the bottom end of the protection cover; the protective cover can be turned over around the bottom end of the protective cover through bending of the flexible bending part.

Further, in other preferred embodiments of the present invention, the side wall of the protective cover is divided into a first side wall disposed along the length direction of the flexible bending portion, and a pair of second side walls respectively located at two sides of the first side wall, the first side wall and the pair of second side walls together enclose an accommodating cavity, an opening is formed between the pair of second side walls, and the hook tooth portion is convexly disposed on the first side wall.

Further, in another preferred embodiment of the present invention, a pair of support arms extend inwardly from the pair of second sidewalls, ends of the pair of support arms abut against each other, end surfaces of the pair of support arms face the first sidewall, and a V-shaped structure with an opening facing the first sidewall is formed between the end surfaces of the pair of support arms for abutting and fixing the double-ended needle cannula.

Further, in other preferred embodiments of the present invention, each of the support arms further includes a guide surface connected to the end surface, and the guide surfaces of the pair of support arms are disposed to be opposed to each other and gradually distant from each other in a direction away from the first side wall.

Further, in other preferred embodiments of the present invention, a reinforcing plate is disposed in the accommodating cavity, the reinforcing plate is disposed along the width direction of the shield and is fixedly connected to the first side wall and the pair of second side walls, and a notch for the double-headed needle tube to pass through is disposed on a side of the reinforcing plate facing the opening.

Further, in another preferred embodiment of the present invention, the first side wall is provided with a first observation opening, and the first observation opening penetrates through the first side wall and faces the hook tooth portion; still be provided with the second on the first lateral wall and observe the mouth, the second is observed the mouth and is run through first lateral wall, towards the support arm.

Further, in other preferred embodiments of the present invention, the outer side surface of the first side wall is provided with a plurality of reinforcing ribs, and each reinforcing rib is arranged along the width direction of the protective cover; the two ends of the reinforcing edge respectively extend to the joint of the first side wall and the pair of second side walls; the plurality of reinforcing ribs are arranged at intervals along the length direction of the protective cover.

The embodiment of the utility model has the beneficial effects that:

the utility model provides a puncture-proof sheath which comprises a fixing ring and a protective cover. The inner wall of the fixing ring is provided with a slot, the outer wall of the needle seat of the existing blood taking needle is provided with a convex edge, and the convex edge can be inserted into the slot to combine the anti-acupuncture sheath with the existing blood taking needle. The bottom of protection casing passes through flexible kink with solid fixed ring's lateral wall and is connected. Before the blood taking needle is used and after the blood taking needle is used, the needle head can be quickly and conveniently covered by the protective cover, and accidental acupuncture is effectively prevented. In addition, the protruding hook tooth portion that is equipped with of inner wall of protection casing, the height of hook tooth portion is equivalent with solid fixed ring's last reason, and hook tooth portion can form the joint with solid fixed ring's last reason and fix the protection casing when double-end needle tubing gets into and holds the chamber. Through the fixation of the hook tooth part, the rapid fixation and the fixation removal of the protective cover can be realized, medical personnel can conveniently operate through a single hand, and the convenience of operation is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of a prior art lancet;

FIG. 2 is a schematic view of a needle stick prevention sheath according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a retainer ring of a needle-prick prevention sheath according to an embodiment of the present invention;

FIG. 4 is a schematic view of a state of engagement between a lancet and a needle-pricker-preventing sheath according to an embodiment of the present invention;

FIG. 5 is a front view of a state in which a needle-prick preventing sheath is engaged with a blood lancet according to an embodiment of the present invention;

FIG. 6 is a rear view of a state in which a lancet is engaged with a puncture preventing sheath according to an embodiment of the present invention;

FIG. 7 is a sectional view showing a state in which a lancet needle is engaged with a puncture preventing sheath according to an embodiment of the present invention.

Icon: 100-anti-needle sheath; 110-a fixed ring; 111-slot; 1111-an insertion end; 120-a shield; 1201-a first side wall; 1202-a second sidewall; 121-a receiving cavity; 1211-opening; 122-a hook tooth portion; 123-a support arm; 1231-end face; 1232-a guiding surface; 124-a reinforcing plate; 1241-notch; 125-first viewing port; 126-second viewing port; 127-a reinforcing rib; 130-a flexible bend; 200-a blood collection needle; 210-a needle seat; 211-ribs; 220-double ended syringe.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

The present embodiment provides a needle-prick prevention sheath 100 for use with a conventional lancet 200 on the market. The lancet 200 is constructed as shown in fig. 1, and includes a hub 210 and a double-ended needle tube 220 axially penetrating the hub 210 along the hub 210. A plurality of (usually four, cross-shaped) ribs 211 are provided on the outer wall of the needle holder 210 along the length of the needle holder 210. The needle-prick prevention sheath 100 of the present embodiment is provided to be used with the lancet 200. As shown in FIG. 2, the anti-needle-stick sheath 100 includes a retaining ring 110 and a shield 120.

As shown in fig. 2 and 3, the number of the insertion grooves 111 is plural, and the plural insertion grooves 111 are provided at intervals (generally four, staggered by 90 degrees, and adapted to the conventional lancet 200 on the market) along the circumferential direction of the fixing ring 110. The slot 111 includes an insertion end 1111 into which the hub 210 is inserted; from the insertion end 1111, the width of the insertion groove 111 is gradually reduced along the length direction thereof. During the process of inserting the rib 211 into the slot 111, the rib 211 presses the slot wall of the slot 111 to be elastically deformed, and the pressing strength is increased, so that the fixing ring 110 can be stably mounted on the needle holder 210.

As shown in fig. 2 and 4, the inside of the shield 120 forms an accommodating cavity 121 for accommodating the double-ended needle tube 220, the sidewall of the shield 120 is provided with an opening 1211 through which the double-ended needle tube 220 passes, and the bottom end of the shield 120 is connected with the sidewall of the fixing ring 110 through the flexible bending portion 130; the inner wall of the shield 120 is convexly provided with a hook tooth portion 122, the height of the hook tooth portion 122 is equivalent to the upper edge of the fixing ring 110, and the hook tooth portion 122 can form clamping connection with the upper edge of the fixing ring 110 to fix the shield 120 when the double-head needle tube 220 enters the accommodating cavity 121. Before and after the blood taking needle 200 is used, the needle head can be quickly and conveniently covered by the protective cover 120, and accidental acupuncture is effectively prevented. In addition, through the fixed of hook tooth portion 122, can realize the quick fixed of protection casing 120 and remove fixedly, medical personnel can conveniently operate through the one hand, have improved the convenience of operation.

In addition, as shown in fig. 2 and 5, the flexible bending part 130 is thin, the flexible bending part 130 is disposed in a plane perpendicular to the axis of the needle holder 210, one end of the flexible bending part 130 in the length direction is connected to the outside of the fixing ring 110, and the other end is connected to the bottom end of the protection cover 120; the shield 120 may be turned around its bottom end by the bending of the flexible bend 130. The sheet-like structure can restrict the bending direction of the flexible bending part 130, taking the view angle of fig. 1 as an example, under the restriction of the flexible bending part 130, the protective cover 120 can only cover or take out the needle head by upward or downward rotation in the vertical plane in the horizontal state, and there is no left-right swing in the horizontal plane, such design also makes things convenient for the protective cover 120 to cover the needle head accurately, and increases the operation precision.

Further, as shown in fig. 2 and 7, the side wall of the shield 120 is divided into a first side wall 1201 disposed along the length direction of the flexible bending portion 130 and a pair of second side walls 1202 respectively disposed at two sides of the first side wall 1201, the first side wall 1201 and the pair of second side walls 1202 together enclose the accommodating cavity 121, an opening 1211 is formed between the pair of second side walls 1202, and the hooking tooth portion 122 is convexly disposed on the first side wall 1201. A pair of support arms 123 extend inward from the pair of second side walls 1202, ends of the pair of support arms 123 abut against each other, end surfaces 1231 of the pair of support arms 123 face the first side wall 1201, and a V-shaped structure with an opening 1211 facing the first side wall 1201 is formed between the end surfaces 1231 of the pair of support arms 123 for abutting and fixing the double-ended needle cannula 220. During the process of turning the shield 120 upwards and covering the needle, the needle enters the receiving cavity 121 through the opening 1211 and is pressed through the pair of support arms 123 to abut against the end surfaces 1231 of the pair of support arms 123. The V-shaped structure can prevent the needle head from sliding relative to the end surface 1231, and can stably fix the needle head. In addition to this, each support arm 123 further includes a guide surface 1232 connected to the end surface 1231, and the guide surfaces 1232 of the pair of support arms 123 are disposed to be opposed to each other and gradually distant from each other in a direction away from the first side wall 1201. The guide surface 1232 is provided to allow the needle to be more smoothly squeezed through between the pair of support arms 123 and to a predetermined fixed position. Typically, the shield 120 is made of a plastic material, and when the needle needs to be removed from the shield 120, the pair of second sidewalls 1202 can be squeezed to deform the pair of support arms 123 to a certain extent, thereby assisting the needle to be removed from the V-shaped configuration.

The accommodating cavity 121 is provided with a reinforcing plate 124, the reinforcing plate 124 is disposed along the width direction of the shield 120 and fixedly connected to the first side wall 1201 and the pair of second side walls 1202, and a notch 1241 for passing the double-headed needle tube 220 is disposed on a side of the reinforcing plate 124 facing the opening 1211. The reinforcing plate 124 may increase the coupling strength between the first side wall 1201 and the pair of second side walls 1202, which may provide a sufficient supporting effect to maintain the overall shape of the shield 120. The number of the reinforcing plates 124 is plural, and the plurality of reinforcing plates 124 are provided at intervals along the length direction of the shield cover 120.

As shown in fig. 6, the first sidewall 1201 is provided with a first observation port 125, and the first observation port 125 penetrates through the first sidewall 1201 and faces the hook tooth portion 122; the first side wall 1201 is further provided with a second observation port 126, and the second observation port 126 penetrates through the first side wall 1201 and faces the support arm 123. The first observation port 125 and the second observation port 126 are designed to avoid the first side wall 1201 from obstructing the view, so that the user can better view the fixation condition of the hook tooth part 122 and the supporting arm 123.

In addition, the outer side surface of the first sidewall 1201 is provided with a plurality of reinforcing ribs 127, each of the reinforcing ribs 127 being disposed along the width direction of the shield 120; both ends of the reinforcing rib 127 extend to the connection between the first side wall 1201 and the pair of second side walls 1202; the plurality of reinforcing ribs 127 are provided at intervals along the length direction of the shield cover 120. The reinforcing ribs 127 may also serve a reinforcing effect to maintain the overall shape of the shield cover 120. Meanwhile, the reinforcing ribs 127 can also increase friction force, so that the anti-skid effect is achieved.

In summary, the present invention provides a needle stick prevention sheath 100 comprising a retaining ring 110 and a shield 120. The inner wall of the fixing ring 110 is provided with the insertion groove 111, and the conventional lancet 200 is provided with the rib 211 on the outer wall of the hub 210, and the anti-puncture sheath 100 can be used in combination with the conventional lancet 200 by inserting the rib 211 into the insertion groove 111. The bottom end of the shield 120 is connected to the sidewall of the fixing ring 110 by a flexible bending portion 130. Before and after the blood taking needle 200 is used, the needle head can be quickly and conveniently covered by the protective cover 120, and accidental acupuncture is effectively prevented. In addition, the inner wall of the shield 120 is convexly provided with a hook tooth portion 122, the height of the hook tooth portion 122 is equivalent to the upper edge of the fixing ring 110, and the hook tooth portion 122 can form a clamping connection with the upper edge of the fixing ring 110 to fix the shield 120 when the double-headed needle tube 220 enters the accommodating cavity 121. Through the fixation of hook tooth portion 122, can realize that protection casing 120's quick fixation and release are fixed, medical personnel can conveniently operate through one hand, have improved the convenience of operation.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A needlestick prevention sheath, comprising:

the inner wall of the fixing ring is provided with a slot matched with a needle seat of the blood taking needle, and the slot is arranged along the axial direction of the fixing ring;

the protective cover is internally provided with an accommodating cavity for accommodating the double-head needle tube of the blood taking needle, the side wall of the protective cover is provided with an opening for the double-head needle tube to pass through, and the bottom end of the protective cover is connected with the side wall of the fixed ring through a flexible bending part; the inner wall of the protective cover is convexly provided with a hook tooth part, the height of the hook tooth part is equivalent to the upper edge of the fixing ring, and the hook tooth part can be clamped with the upper edge of the fixing ring to fix the protective cover when the double-head needle tube enters the accommodating cavity.

2. The needle stick prevention sheath of claim 1 wherein the number of slots is a plurality, the plurality of slots being spaced circumferentially along the retaining ring.

3. The needle stick prevention sheath of claim 2 wherein the slot includes an insertion end into which the needle hub is inserted; from the insertion end, the width of the slot is gradually reduced along the length direction of the slot.

4. The needle stick prevention sheath of claim 3, wherein the flexible bending part is thin and arranged in a plane perpendicular to the axis of the needle base, and one end of the flexible bending part in the length direction is connected with the outer side of the fixing ring, and the other end of the flexible bending part is connected with the bottom end of the protective cover; the protective cover can be turned over around the bottom end of the protective cover through bending of the flexible bending part.

5. The needle-prick prevention sheath according to claim 4, wherein the side wall of the protection shield is divided into a first side wall disposed along the length direction of the flexible bending portion and a pair of second side walls respectively located at two sides of the first side wall, the first side wall and the pair of second side walls jointly enclose the accommodation cavity, the opening is formed between the pair of second side walls, and the hook tooth portion is protruded on the first side wall.

6. The needle stick prevention sheath of claim 5 wherein a pair of support arms extend inwardly from each of the pair of second sidewalls, the ends of the pair of support arms abut against each other, the ends of the pair of support arms face the first sidewall, and a V-shaped structure is formed between the ends of the pair of support arms and opens toward the first sidewall for abutting engagement of the double-ended needle cannula.

7. The needle stick prevention sheath of claim 6 wherein each of the support arms further comprises a guide surface connected to the end surface, the guide surfaces of the pair of support arms being oppositely disposed and progressively farther away from each other in a direction away from the first side wall.

8. The needle stick prevention sheath of claim 7 wherein a reinforcing plate is disposed in the receiving cavity, the reinforcing plate is disposed along the width of the shield and is fixedly connected to the first side wall and the pair of second side walls, and a notch is disposed on a side of the reinforcing plate facing the opening for the double-ended needle tube to pass through.

9. The needle stick prevention sheath of claim 8 wherein the first sidewall has a first viewing port disposed therethrough facing the latch portion; still be provided with the second on the first lateral wall and observe the mouth, the second is observed the mouth and is run through first lateral wall, the orientation the support arm.

10. The needle-prick prevention sheath according to claim 9, wherein the outer side of the first side wall is provided with a plurality of reinforcing ribs, each of the reinforcing ribs being provided along a width direction of the shield; two ends of the reinforcing rib respectively extend to the joint of the first side wall and the pair of second side walls; the plurality of reinforcing ribs are arranged at intervals along the length direction of the protective cover.