CN219290340U

CN219290340U - Safety protective sleeve for injection needle

Info

Publication number: CN219290340U
Application number: CN202222013722.3U
Authority: CN
Inventors: 陆军; 陆维炜; 赵丽杰; 倪琳
Original assignee: Caina Technology Co ltd
Current assignee: Caina Technology Co ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2023-07-04
Anticipated expiration: 2032-08-01

Abstract

The utility model discloses a safety protection sleeve for an injection needle, which comprises an injection needle body, a front protection sleeve sleeved at the front end of the injection needle body and a rear protection sleeve covered on the front protection sleeve, wherein the rear end of the front protection sleeve is provided with clamping parts matched with the injection needle body, the rear end of each clamping part is provided with at least 2 axial grooves. The injection needle protecting sleeve is arranged to be of a structure containing the front protecting sleeve and the rear protecting sleeve, the clamping part is arranged at the rear end of the front protecting sleeve, the clamping part is divided into a plurality of parts by the grooves formed in the clamping part, the clamping part is arranged to be beneficial to the insertion and the taking of the injection needle, the problems that the outer diameter of the injection needle is not matched with the inner diameter of the front protecting sleeve due to the problems of thermal expansion, cold contraction and the like can be avoided, the rear protecting sleeve can be directly covered on the front protecting sleeve after the injection needle is stored, the packaging and the storage of the injection needle are facilitated, and the injection needle is prevented from being polluted.

Description

Safety protective sleeve for injection needle

Technical Field

The utility model relates to the field of injection needle protection sleeves, in particular to an injection needle safety protection sleeve.

Background

Injection needles are one of the most commonly used medical instruments and mainly comprise a needle tip and a needle holder, which are mounted to a syringe for injecting and extracting a medical fluid. For safety, packaging or protection devices are used to protect the needle prior to use, reducing the risk of bacterial and viral penetration during storage and use. At present, most of injection needle protection devices used in the market are made of flexible packaging materials, and are generally packaged by plastic bags or plastic-absorbing paper. The package has no function of preventing needling, and is extremely easy to damage under the action of external forces such as beating, extrusion and the like, so that the sterile barrier of the injection needle product is damaged. In addition, when the product in the package type is used, the medical staff can take a little care when opening the packaging bag because the product is smaller in shape, the product can fall off, and certain trouble is brought to the use.

There are also many hard packaging devices on the market, and the hard packaging device stores the injection needle and relies on cooperation between the working of plastics or relies on the adhesive tape to ensure the leakproofness of product, has the security risk. Along with the development of scientific technology, many novel injection needle protection devices are also appeared on the market, and the devices mainly rely on close fit between front and rear jackets to realize sealed storage of injection needles. For example, patent publication No. CN212439616U discloses a sterile injection needle, which includes an injection needle body and a front sheath and a rear sheath respectively sleeved at the front end and the rear end of the injection needle body, a sealing member is further provided between the front sheath and the rear sheath, and sealing of the front sheath and the rear sheath is achieved through the sealing member, so that a negative pressure sealing space is formed between the front sheath and the rear sheath, and sealing reliability is improved. However, because the part of the front sheath matched with the needle stand of the injection needle is of an annular hole structure, in order to enable the injection needle to be matched with the front sheath more tightly, when the front sheath is actually manufactured, the diameter of the hole is usually equal to or slightly smaller than the outer diameter of the needle stand of the injection needle, and due to the influences of various aspects such as expansion with heat and contraction with cold, interference fit is likely to be generated between the front sheath and the needle stand of the injection needle in the use process, and the insertion and the extraction of the injection needle are not facilitated.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a safety protection sleeve for an injection needle, so as to solve the problem that the injection needle is not easy to be inserted into the protection sleeve or taken out from the protection sleeve in the prior art.

In order to achieve the above purpose, the utility model provides a safety protection sleeve for an injection needle, which comprises an injection needle body, a front protection sleeve sleeved at the front end of the injection needle body and a rear protection sleeve covered on the front protection sleeve, and is characterized in that the rear end of the front protection sleeve is provided with clamping parts matched with the injection needle body, the rear end of each clamping part is provided with at least 2 axial grooves.

In order to solve the problem that the injection needle is not easy to be inserted into the protective sleeve or taken out from the protective sleeve in the prior art, the utility model adopts the technical scheme that the rear end of the front protective sleeve is provided with a clamping part, the rear end of the clamping part is provided with a plurality of grooves, and the clamping part is divided into a plurality of parts by the grooves. When the injection needle is inserted into the front protective sleeve, if the inner diameter of the protective sleeve is equal to or slightly larger than the outer diameter of the needle seat of the injection needle, a plurality of parts of the clamping part can be outwards spread when the injection needle is inserted, so that the clamping part and the injection needle can be tightly attached, and the injection needle can be conveniently taken out when taken out.

The number of axial grooves may be 2, 3, 4, 5, 6, 8 or more, and correspondingly, the clamping portion may be divided into 2, 3, 4, 5, 6, 7, 8 or more portions, the more the number of axial grooves, the greater the elasticity of the clamping portion, but the too many may affect the tightness at the time of clamping.

Further preferable technical scheme is that the rear end outer wall of the clamping part is provided with a rib, the outer wall of the front protective sleeve is provided with an annular rib, and an annular groove is formed between the rib and the annular rib. The rib at the rear end of the clamping part is provided with a plurality of functions, such as better clamping with the rear protective sleeve, and if the sealing element is arranged outside the clamping part, the rib also has the function of limiting the sealing element. The annular convex rib is arranged on the outer wall of the front protective sleeve, and an annular groove can be formed between the annular convex rib and the convex rib at the rear end of the clamping part, and a sealing element can be placed in the annular groove, so that the injection needle can be better protected; secondly, the annular convex edges can limit the rear protective sleeve; in addition, the width of the annular rib can be set according to the requirement, when the width of the annular rib is wider, the annular rib can be used as a hand-holding part, namely, when the injection needle is inserted or taken out, the thumb and the index finger of one hand can be used for pinching the position of the annular rib, and the other hand can be used for inserting and taking out the injection needle.

Further preferable technical scheme is that the length of the axial groove is smaller than the distance between the rear end of the clamping part and the annular rib. The length of the axial groove is smaller than the distance between the rear end of the clamping part and the annular convex edge, which is more favorable for the clamping part to clamp the injection needle and is also more convenient to take.

Further preferable technical scheme is that the inner wall of the rear protective sleeve is provided with a limiting part. The setting of spacing portion is convenient for carry out spacingly to the rear end of clamping part, makes things convenient for the clamping part rear end to support and leans on spacing portion. When the rear protective sleeve is covered, damage to the rear protective sleeve or the clamping part caused by excessive force is prevented.

Further preferable technical scheme is that the rear protective sleeve comprises a handle and a clamping matching part matched with the clamping part, and the limiting part is arranged in the clamping matching part.

Further preferable technical scheme is that the shape of the handle comprises a columnar body with a polygonal end section.

The most important structure in the back protective sleeve is the part matched with the clamping part, so that the back protective sleeve only needs to contain the clamping matching part, and other parts can be designed and improved according to consumer preference or different requirements. If the rear protective sleeve can be a structure with only the clamping part matching part, the rear protective sleeve also comprises a handle connected with the clamping matching part. The shape of the handle may be various, including a cylinder, a prism or other special-shaped structures, preferably, the shape of the handle may be a prism with a polygonal cross section, the cross section area of each part of the prism may be uniform or may be changed, for example, the shape of the handle may be a polygonal prism with a gradually decreasing cross section area from the rear end face to the front end face.

Further preferable technical scheme is that the outer wall of the front protective sleeve is provided with a plurality of first axial ribs, and the first axial ribs extend towards the front end of the front protective sleeve along the annular ribs. The main function of the first axial convex edge arranged on the outer wall of the front protective sleeve is to be matched with a tool or a package for storing the injection needle protective sleeve.

The further preferable technical scheme is that the injection needle body comprises a needle head and a needle seat fixedly connected with the needle head, a needle seat limiting part is arranged on the needle seat, and a second axial convex edge matched with the needle seat limiting part is arranged on the inner wall of the front protective sleeve. Preferably, the inner wall of the front protective sleeve is also provided with a second axial rib, and the main function of the second axial rib is to be matched with the limit part of the needle seat so as to fix the position of the needle seat and prevent the injection needle from rotating in the processes of assembly, movement or transportation and the like.

The utility model has the advantages and beneficial effects that:

1. the injection needle protecting sleeve is arranged to be of a structure containing the front protecting sleeve and the rear protecting sleeve, the clamping part is arranged at the rear end of the front protecting sleeve, the clamping part is divided into a plurality of parts by the grooves formed in the clamping part, the clamping part is arranged to be beneficial to the insertion and the taking of the injection needle, the problems that the outer diameter of the injection needle is not matched with the inner diameter of the front protecting sleeve due to the problems of thermal expansion, cold contraction and the like can be avoided, the rear protecting sleeve can be directly covered on the front protecting sleeve after the injection needle is stored, the packaging and the storage of the injection needle are facilitated, and the injection needle is prevented from being polluted.

2. Set up the bead on the rear end outer wall of clamping part to set up annular bead on preceding protective sheath outer wall, be formed with annular groove between bead and the annular bead, annular bead's setting not only can carry out spacingly to the protective sheath behind, and the setting of the wide annular bead of bead can make things convenient for operating personnel to take the protective sheath, and the cooperation of bead and annular bead also helps the cooperation of preceding protective sheath and back protective sheath to use.

Drawings

FIG. 1 is a schematic view showing the external structure of the needle protecting jacket in examples 1 and 2;

FIG. 2 is a schematic view showing the structure of the combination of the needle body and the front protective sheath in

embodiments

1 and 2;

FIG. 3 is a schematic sectional view of the needle shield of example 1;

fig. 4 is a schematic sectional view of the needle protection cover in embodiment 2.

In the figure: 1. an injection needle body; 11. a needle; 12. a needle stand; 13. a needle seat limit part; 2. a front protective sleeve; 3. a rear protective sleeve; 31. a handle; 32. a clamping fit; 33. a limit part; 4. a clamping part; 41. a rib; 42. an annular groove; 5. annular rib; 6. an axial groove; 7. a first axial rib; 8. and a second axial rib.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.

Example 1

As shown in fig. 1-3, a safety protection sleeve for an injection needle comprises an injection needle body 1, a front protection sleeve 2 sleeved at the front end of the injection needle body 1 and a rear protection sleeve 3 covered on the front protection sleeve 2, wherein the rear end of the front protection sleeve 2 is provided with a clamping part 4 matched with the injection needle body 1, the outer wall of the rear end of the clamping part 4 is provided with a rib 41, the outer wall of the front protection sleeve 2 is provided with an annular rib 5, and an annular groove 42 is formed between the rib 41 and the annular rib 5. The rear end of the clamping part 4 is provided with axial grooves 6, and the number of the axial grooves 6 is 4. The length of the axial groove 6 is smaller than the distance between the rear end of the clamping part 4 and the annular rib 5. The rear protective sheath 3 includes a handle 31 and a clamp fitting portion 32 that fits with the clamp fitting portion 31, and a limit portion 33 is provided inside the clamp fitting portion 32. The shape of the handle 31 includes a cylindrical body having a pentagonal cross section. The outer wall of the front protective sleeve 2 is provided with 4 first axial ribs 7, and the first axial ribs 7 extend towards the front end of the front protective sleeve 2 along the annular ribs 5.

Example 2

Embodiment 2 differs from embodiment 1 in that the injection needle body 1 comprises a needle 11 and a needle seat 12 fixedly connected with the needle 11, the needle seat 12 is provided with a needle seat limiting part 13, and the inner wall of the front protective sleeve 2 is provided with a second axial convex edge 8 matched with the needle seat limiting part 13.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations are also considered to be within the scope of the present utility model.

Claims

1. The utility model provides a syringe needle safety protection cover, includes syringe needle body, cover establish at the preceding protective sheath of syringe needle body front end and lid in back protective sheath on the preceding protective sheath, its characterized in that, the rear end of preceding protective sheath be provided with syringe needle body matched with clamping part, axial recess has been seted up to the rear end of clamping part, the quantity of axial recess is 2 at least.

2. The needle safety sheath of claim 1, wherein the outer wall of the rear end of the clamping portion is provided with a rib, the outer wall of the front sheath is provided with an annular rib, and an annular groove is formed between the rib and the annular rib.

3. The needle safety shield of claim 2 wherein a length of the axial groove is less than a distance between the clip rear end and the annular rib.

4. The needle safety shield of claim 1 wherein the inner wall of the rear shield is provided with a stop.

5. The needle safety shield of claim 4 wherein the rear shield includes a handle and a grip engagement portion engaged with the grip portion, the limit portion being disposed within the grip engagement portion.

6. The needle safety shield of claim 5 wherein said handle is shaped to include a cylinder with a polygonal cross-section at an end.

7. A needle safety shield according to claim 3, wherein the outer wall of the front shield is provided with a plurality of first axial ribs extending along the annular ribs toward the front end of the front shield.

8. The needle safety protection sleeve according to claim 1, wherein the needle body comprises a needle head and a needle seat fixedly connected with the needle head, a needle seat limiting part is arranged on the needle seat, and a second axial convex edge matched with the needle seat limiting part is arranged on the inner wall of the front protection sleeve.