CN105413016B - It is disposable to prevent back that set stabs type aseptic injection needle - Google Patents

Abstract

Prevent back that set stabs type aseptic injection needle the invention discloses disposable, belong to the field of medical instrument technology, including injection tube and syringe needle, further include preventing back that set stabs structure, it is described to prevent back that set stabs structure and includes fixed seat, the movable needle cap being fixed in fixed seat and be arranged between the rotational structure that needle cap be rotated out of to fixed seat.The present invention is by preventing back that set stabs structure, and medical staff arbitrarily returns set and operates its finger and will not be wounded by stabbing, its safety can be improved, medical staff is made to be in a cheerful frame of mind, no psychological burden, to improve working efficiency and quality.

Description

Disposable anti-recovering puncture type sterile injection needle

technical field

The invention belongs to the technical field of medical devices, and in particular relates to a disposable sterile injection needle that prevents stab wounds from returning to the sleeve.

Background technique

Existing injection needles are usually covered with injection needle protectors to prevent the needles from being contaminated and causing harm to medical staff before use. Medical staff take it off when injecting, and put it back on to conceal it after the injection is completed. The needle is used to prevent injuries, but since the protective sleeve and the syringe do not limit each other, it is easy to prick fingers during the operation of returning the sleeve, which brings psychological burden to the medical staff and affects the operation efficiency and work quality.

Therefore, it is necessary to improve the structure of the existing injection needles, increase the anti-stab structure, and the fingers of the medical staff will not be stabbed when they return the sleeve arbitrarily, which can improve their safety, make the medical staff feel happy, and help improve the quality of life. Operational efficiency and quality of work.

Contents of the invention

In view of this, the object of the present invention is to provide a disposable aseptic injection needle that prevents backsleeping and punctures, so as to overcome the problem in the prior art that fingers are easily pricked during the backing operation.

The purpose of the present invention is achieved through the following technical solutions:

Disposable anti-recovering stab wound type sterile injection needle, including a syringe and a needle, and also includes an anti-recovering stab wound structure, the anti-recovering stab wound structure includes a fixed seat, a needle cap movably fixed on the fixed seat and The rotating structure that can rotate the needle cap out of the fixed seat is set between the two,

The fixing seat includes a fixed end of the syringe and a fixed end of the needle cap, the fixed end of the syringe is sealed and fixed with the syringe, a needle fixing hole communicating with the syringe is provided through the fixing seat,

The needle cap is a cylindrical thin-walled cavity structure with one end sealed and one end open. The open end and the fixed end of the needle cap are detachably sealed and fixed to form a needle sealing cavity in the needle cap. The needle is fixed in the needle fixing hole, and extending into the needle seal cavity,

The outer wall of the needle cap is axially provided with a needle inlet and outlet and a protective film that can completely seal the needle inlet and outlet,

The rotating structure includes a rotating part fixed at the opening end of the needle cap, a fixing part rotatably connected to the rotating part through a pin shaft, and a pressing device for fixing the fixing part on the fixing base.

Further, the rotating part is two ribs integrally provided with the needle cap, and the heads of the two ribs are provided with a concentric through hole, and the fixing part is a fixing piece arranged between the two ribs, and the fixing piece The head is provided with a through hole, and the pin shaft passes through the concentric through hole, and the through hole rotatably connects and fixes the rotating part and the fixed part together.

Further, the pressing device includes a pressing block that is rotatably connected to the fixing seat and an engaging structure arranged between the pressing block and the fixing seat, and the engaging structure includes a pressing head arranged on the head of the pressing block and a corresponding setting The indenter engaging groove on the fixed seat.

Further, a limiting groove is provided on the fixed piece, and the pressure block is fixed in the limiting groove.

Further, it also includes a plurality of blocking structures fixed on the needle cap, which can restrict the needle from entering and leaving the needle cap from the needle port.

Further, a blocking structure is provided at the fixed position of the needle cap and the fixing seat.

Further, the blocking structure includes an arc pressing block rotatably connected to the needle cap and a clamping structure arranged between the arc pressing block and the needle cap, and the clamping structure includes a The protrusion is correspondingly arranged on the card slot on the needle cap.

Further, it also includes a tear sheet integrally formed with the protective film.

The beneficial effects of the present invention are:

The present invention adopts the anti-stab structure, and the fingers of the medical staff will not be stabbed when the sleeve is arbitrarily retracted, which can improve its safety, make the medical staff feel happy, and have no psychological burden, so as to improve work efficiency and quality.

Other advantages, objects and features of the present invention will be set forth in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the investigation and research below, or can be obtained from It is taught in the practice of the present invention. The objects and other advantages of the invention may be realized and attained by the following specification.

Description of drawings

In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings, wherein:

Fig. 1 is a schematic structural view of a disposable anti-stab type sterile injection needle of the present invention;

Fig. 2 is a schematic diagram of the structure when the needle cap is removed from the disposable sterile injection needle of the present invention;

Fig. 3 is a schematic structural view of a disposable anti-stab type sterile injection needle cap of the present invention;

Fig. 4 is the left view of Fig. 3;

Fig. 5 is A-A sectional view of Fig. 4;

Fig. 6 is a B-B sectional view of Fig. 1 .

Reference signs:

1-fixing seat; 101-fixed end of syringe; 102-fixed end of needle cap; 2-needle cap; 3-needle sealing cavity; 4-needle inlet and outlet; 5-protective film; 8-Protruding rib; 9-Fixer; 10-Arc block; 11-Protrusion; 12-Slot; 13-Limiting groove; 14-Pin shaft; Needle; 18-pressure head engagement groove.

Detailed ways

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

As shown in the figure, the disposable anti-recovering stab wound type sterile injection needle of this embodiment includes a syringe 16 and a needle 17, and also includes an anti-recovering stab wound structure, and the anti-recovering stab wound structure includes a fixing seat 1. The needle cap 2 movably fixed on the fixed seat 1 and the rotating structure arranged between the two can rotate the needle cap 2 out of the fixed seat 1. The fixed seat 1 includes the fixed end 101 of the syringe and the fixed end of the needle cap 102, the fixed end 101 of the syringe is sealed and fixed to the syringe 16, the fixing seat 1 is provided with a needle 17 fixing hole communicating with the syringe 16, and the needle cap 2 is a thin cylindrical tube with one end sealed and the other open. The wall cavity structure, the opening end and the needle cap fixed end 102 are detachably sealed and fixed, together with the needle cap fixed end 102, a needle sealed chamber 3 is formed in the needle cap 2, the needle head 17 is fixed in the needle head fixing hole, and extends to In the needle sealing cavity 3, a needle inlet and outlet 4 and a protective film 5 that can completely seal the needle inlet and outlet 4 are arranged on the outer wall of the needle cap 2 in the axial direction, so that the needle 17 is isolated from the outside air and kept clean, Not to be polluted, the rotating structure includes a rotating part fixed at the open end of the needle cap, a fixed part rotatably connected to the rotating part through a pin shaft 14, and a pressing device for fixing the fixed part on the fixed seat 1, It also includes a plurality of blocking structures fixed on the needle cap that can restrict the needle head 17 from entering and exiting the needle cap from the needle head outlet 4, preventing the needle head 17 from falling off or being exposed during transportation and causing harm to the operator.

The delivery state of the injection needle of the present invention: the needle head 17 is fixed on the fixing seat 1 through the needle head fixing hole, and the fixing seat 1 is fixed to the injection barrel 16 through the fixed end 101 of the injection barrel, so that the needle head 17 communicates with the injection barrel 16, and the needle cap 2 is fixed on the The fixed end 102 of the needle cap of the fixing base 1 completely seals the needle 17, and the pressing device and the blocking structure are in a pressed state.

When in use, first open the blocking structure on the needle cap 2, then tear off the protective film 5, then rotate the needle cap 2 with the rotating structure, unscrew the needle cap 2 from the fixing seat 1, and expose the needle head 17, and then perform drug inhalation, After the injection is completed, the needle cap 2 is screwed into the fixing seat 1, and then fixed with a blocking structure to seal the needle head 17 for recovery.

The present invention adopts the anti-sleeve stabbing structure, since the protective film of the needle cap is not torn before use, the sealing chamber of the needle head is in a sealed state, and the needle head can be protected from pollution and stored and transported. After the use is completed, the protective film is completely Torn apart, although the needle sealing chamber is no longer airtight, the needle inlet and outlet have been opened, the needle can go in and out freely, the needle cap can be screwed into the fixing seat through the rotating mechanism, and the needle enters the needle sealing chamber, so as to realize the needle-free recovery Cover, and then seal the entrance and exit of the needle cap through the blocking structure, further improving the reliability of restricting the needle from slipping out of the needle cap, the medical staff can perform the operation of returning the sleeve at will, and their fingers will not be stabbed, which greatly improves their safety And reliability, so that medical staff feel happy, without psychological burden, in order to improve work efficiency and quality.

At the same time, because the needle cap and the fixing seat are separable structures, the invention can simultaneously realize the operation of inserting the needle cap into the fixing seat along the axial direction of the fixing seat and the rotation operation along the pin shaft, thereby realizing pollution-free in the early stage of use. The operation of protecting and returning the cover after use, one part cover, realizes multiple functions, which is beneficial to saving costs and reducing use costs.

As an improvement of this embodiment, the pressing device includes a pressing block 6 that is rotatably connected to the fixed seat 1 and an engaging structure arranged between the pressing block 6 and the fixing seat 1. The indenter 7 of the part and the indenter engagement groove 18 correspondingly arranged on the fixed seat 1, the rotating part is two convex ribs 8 integrally provided with the needle cap 2, which can enhance its strength, and the two convex ribs 8 The head is provided with a concentric through hole, and the fixed portion is a fixed piece 9 arranged between two ribs 8, the head of the fixed piece 9 is provided with a through hole, and the pin shaft 14 passes through the concentric through hole, and the through hole will The rotating part and the fixed part are rotatably connected and fixed together, and reinforcing ribs can be arranged on both sides of the fixing piece 9 to enhance its structural strength and improve the effect and ability of force transmission.

As an improvement of this embodiment, the fixing piece 9 is provided with a limiting groove 13, and the pressure block 6 is fixed in the limiting groove 13. Due to the blocking of the limiting groove 13, the fixing piece 9 is not easy to fall off, and its fixing effect is increased. , improve the safety of the storage and transportation process and reduce cost losses.

As an improvement of this embodiment, the blocking structure includes a circular arc pressing block 10 rotatably connected to the needle cap 2 and a clamping structure arranged between the circular arc pressing block 10 and the needle cap 2, and the clamping structure includes The protrusion 11 arranged on the head of the arc pressing block 10 and the corresponding locking groove 12 arranged on the needle cap 2, the protrusion 11 snaps into the locking slot 12 to realize locking, exits the locking slot 12, and the arc pressing block 10 opens , the needle can come in and out.

As an improvement of this embodiment, the needle cap 2 is provided with a blocking structure at the fixing point of the fixing seat 1, which can make the needle cap 2 more firmly fixed on the fixing seat while realizing the blocking of the needle head 17 entering and exiting the needle cap 2 1, so that the needle cap 2 does not come out of the fixing seat 1 during the transfer process, so as to prevent the needle head 17 from falling off and being polluted, which is conducive to reducing costs and improving the safety of its use.

As an improvement of this embodiment, a tear sheet 15 integrally formed with the protective film 5 is also included, and tearing the protective film 5 through the tear sheet 15 is more labor-saving and faster.

As an improvement of this embodiment, operating handles are provided on the needle cap 2, the pressing block 6 and the arc pressing block 10, which can facilitate operation and improve operating efficiency.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements, without departing from the spirit and scope of the technical solution, should be included in the scope of the claims of the present invention.

Claims (2)

1. Disposable anti-recovery stabbing type sterile injection needle, comprising a syringe and a needle, characterized in that: it also includes an anti-recovery stabbing structure, and the anti-recovery stabbing structure includes a fixed seat, which is movable and fixed on a fixed The needle cap on the seat and the rotating structure arranged between the two can rotate the needle cap out of the fixed seat, The fixing seat includes a fixed end of the syringe and a fixed end of the needle cap, the fixed end of the syringe is sealed and fixed with the syringe, a needle fixing hole communicating with the syringe is provided through the fixing seat, The needle cap is a cylindrical thin-walled cavity structure with one end sealed and one end open. The open end and the fixed end of the needle cap are detachably sealed and fixed to form a needle sealing cavity in the needle cap. The needle is fixed in the needle fixing hole, and Extending into the needle sealing chamber, a needle inlet and outlet and a protective film that can completely seal the needle inlet and outlet are integrally provided on the outer wall of the needle cap in the axial direction, The rotating structure includes a rotating part fixed at the opening end of the needle cap, a fixed part rotatably connected to the rotating part through a pin shaft, and a pressing device for fixing the fixed part on the fixed seat; The rotating part is two ribs integrally arranged with the needle cap, the heads of the two ribs are provided with a concentric through hole, the fixed part is a fixing piece arranged between the two ribs, the head of the fixing piece The part is provided with a through hole, and the pin shaft passes through the concentric through hole, and the through hole rotatably connects and fixes the rotating part and the fixed part together; The pressing device includes a pressing block rotatably connected to the fixed seat and an engaging structure arranged between the pressing block and the fixing seat. The engaging structure includes a pressing head arranged on the head of the pressing block and correspondingly arranged The indenter engaging groove on the seat; A limiting groove is arranged on the fixed piece, and the pressing block is fixed in the limiting groove; It also includes a plurality of blocking structures fixed on the needle cap to restrict the needle from entering and exiting the needle cap; A blocking structure is arranged on the fixed part of the needle cap and the fixing seat; The blocking structure includes an arc pressing block rotatably connected to the needle cap and a clamping structure arranged between the arc pressing block and the needle cap, and the clamping structure includes a protrusion arranged on the head of the arc pressing block and correspondingly set on the card slot on the needle cap. 2. The disposable anti-retractable sterile injection needle according to claim 1, further comprising a tear piece integrally formed with the protective film.