CN213526895U - Insulin pen needle - Google Patents

Abstract

The utility model provides an insulin pen needle relates to insulin needle technical field, including needle file, locking circle and sliding sleeve, including first slide, second slide and third slide on the needle file, the second slide is used for the intercommunication first slide with the third slide, the locking circle includes first slider, first slider is used for following first slide the second slide with the third slide moves, first slide with the third slide is on a parallel with vertical face setting, the second slide sets up along the horizontal plane, the horizontal plane perpendicular to vertical face, the sliding sleeve suit is in on the locking circle. The utility model discloses a get into the third slide and by the restriction through the locking circle, prevent that the slider from continuing to remove under the effect of external force to make the rigidity of sliding sleeve, can't be pressed, realize disposable, die with the back lock, effectually avoided cross infection and prevented that the treatment staff from handling the injury that the abandonment leads to.

Description

Insulin pen needle

Technical Field

The utility model relates to a technical field of insulin needle particularly, relates to an insulin pen needle.

Background

An insulin pen-type syringe is composed of a needle and an insulin pen, and is disposable, and the insulin pen-type syringe is widely used as a tool for treating diabetes. The main function of the injection device is to accurately infuse insulin into the body of a diabetic patient through the injection device so as to achieve the purpose of controlling the blood sugar of the patient, and the demand is increasing at present.

However, some unreasonable factors still exist in the process of injecting insulin to a patient by using the existing insulin pen needle, the needle point cannot be protected immediately after the existing insulin pen needle completes injection, but the needle point can be protected only by a protection mechanism after the existing insulin pen needle exits from an injection device, so that the risk of cross infection caused by accidental touch still exists, or the existing insulin pen needle is only protected by an external protection sleeve, but in the process of treating medical waste, the protection sleeve is easy to fall off, the needle head is easy to injure the hand of a treater, meanwhile, the medical waste contains a large amount of bacteria and viruses, the injured hand is easy to infect the bacteria and viruses in the waste, and great potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem how to prevent that the treater from being stabbed when handling abandonment insulin pen needle.

In order to solve the problem, the utility model provides an insulin pen needle, including needle file, locking circle and sliding sleeve, including first slide, second slide and third slide on the needle file, the second slide is used for the intercommunication first slide with the third slide, the locking circle includes first slider, first slider is used for following first slide the second slide with the third slide moves, and by spacingly in the third slide, the extending direction of first slide with the extending direction of third slide is parallel to each other, the extending direction of second slide with the extending direction of first slide each other is perpendicular, the sliding sleeve suit is in the locking circle.

Preferably, the sliding device further comprises a second sliding block arranged on the sliding sleeve, and the second sliding block moves along the first sliding way.

Preferably, the first slide way and the third slide way include a starting end and a terminating end, wherein one end of the first slide way or the third slide way, into which the first slide block or the second slide block first enters, is the starting end, the other end of the first slide way or the third slide way is the terminating end, and two ends of the second slide way are respectively connected to the terminating end of the first slide way and the starting end of the third slide way.

Preferably, the width of the second slideway is smaller than the width of the first slide block overlapped with the second slide block.

Preferably, a limit groove is arranged in the third slide way, and the extending direction of the limit groove is perpendicular to the direction of the first slide way.

Preferably, still include the elastic component, the elastic component is installed in the inner chamber that needle file and locking circle constitute, the elastic component is used for the locking circle provide along first slide or the elasticity of third slide direction and make first slider to the torsion of second slide direction rotation.

Preferably, convex parts are arranged at two ends of the elastic piece, blocking parts are arranged at two ends of an inner cavity formed by the needle base and the locking ring, and the convex parts and the blocking parts are matched to limit displacement of two ends of the elastic piece.

Preferably, the elastic member is a spring.

Preferably, still include an overcoat, the overcoat suit is in the needle file with on the second slider, be provided with the cutting in the overcoat, be provided with corresponding slot on the needle file, the slot is in first slide with between the third slide, and be in second slide top.

Preferably, the needle-free needle comprises a needle head arranged in the needle seat, and the needle head penetrates through two ends of the needle seat.

The utility model discloses a first slider is along first slide, second slide and third slide move, the locking circle is along with the first downstream of the motion of first slider, and the sliding sleeve of installing on the locking circle also follows the locking circle downstream, thereby make some sharp-pointed parts in the sliding sleeve expose the sliding sleeve and use, after first slider gets into the third slide, rise the part in the sliding sleeve again and cover the back at the sliding sleeve, first slider is restricted in the third slide, thereby make the sliding sleeve of suit on the locking circle also restricted the removal, can't be pressed, realize disposable, die with the back lock, the effectual cross infection of having avoided and prevent that the treatment staff from handling the injury that the abandonment leads to.

Drawings

Fig. 1 is an overall structure diagram of an insulin pen needle provided by an embodiment of the present invention;

fig. 2 is a first disassembled structure diagram of an insulin pen needle provided by the embodiment of the present invention;

FIG. 3 is a second disassembled structure diagram of the insulin pen needle provided in the embodiment of the present invention;

fig. 4 is a third disassembled structure diagram of the insulin pen needle provided by the embodiment of the present invention;

fig. 5 is a first structure diagram of a needle seat of an insulin pen needle provided by the embodiment of the present invention;

fig. 6 is a top view of a third disassembled structure diagram of an insulin pen needle provided in the embodiment of the present invention;

fig. 7 is a second structure diagram of a needle seat of an insulin pen needle provided by the embodiment of the present invention;

fig. 8 is a structure diagram of the outer casing of the insulin pen needle provided by the embodiment of the present invention.

Description of reference numerals:

1-a needle seat, 11-a first slide way, 12-a second slide way, 13-a third slide way, 131-a limiting groove, 132-a slide groove, 14-a slide part, 15-a mounting part, 16-a needle mounting seat, 17-a slot, 2-a locking ring, 21-a first slide block, 3-a slide sleeve, 31-a second slide block, 4-a needle, 5-a jacket, 51-a cutting strip, 6-a protective sleeve, 7-a sealing strip and 8-an elastic element.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "utility model" merely for convenience and without intending to voluntarily limit the scope of this application to any single utility model or utility model concept if more than one is in fact disclosed.

Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the structures, products and the like disclosed by the embodiments, the description is relatively simple because the structures, the products and the like correspond to the parts disclosed by the embodiments, and the relevant parts can be just described by referring to the method part.

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

The embodiment of the utility model provides an insulin pen needle, in this embodiment, combine fig. 1-5 to show, including needle file 1, locking collar 2 and sliding sleeve 3, including first slide 11, second slide 12 and third slide 13 on the needle file 1, second slide 12 is used for communicateing first slide 11 and third slide 13, locking collar 2 includes first slider 21, first slider 21 is used for following first slide 11, second slide 12 and third slide 13 and move, and by spacingly in third slide 13, the extending direction of first slide 11 and the extending direction of third slide 13 are parallel to each other, the extending direction of second slide 12 is mutually perpendicular with the extending direction of first slide 11, 3 suits of sliding sleeve are on locking collar 2.

In this embodiment, the extending directions of the first slide way 11 and the second slide way 12 are vertical directions, the extending direction of the second slide way 12 is a direction indicated by two ends of the second slide way, the first slider 21 enters from one end of the first slide way 11, vertically moves along the first slide way 11, enters into the second slide way 12 at a junction between the first slide way 11 and the second slide way 12, moves along the second slide way 12, enters into a junction between the second slide way 12 and the third slide way 13, enters into the third slide way 13, moves along the third slide way 13 until being limited by the third slide way 13, and stops moving.

The first sliding block 21 in this embodiment moves along the first sliding way 11, the second sliding way 12 and the third sliding way 13, the locking ring 2 moves downwards first along with the movement of the first sliding block 21, and the sliding sleeve 3 installed on the locking ring 2 also moves downwards along with the locking ring 2, so that some sharp parts in the sliding sleeve are exposed out of the sliding sleeve 3 for use, after the first sliding block 21 enters the third sliding way 13, after the sliding sleeve 3 is lifted to cover the parts in the sliding sleeve again, the first sliding block 21 is limited in the third sliding way 13, so that the sliding sleeve 3 sleeved on the locking ring 2 is also limited to move and cannot be pressed, thereby realizing disposable use and locking after use, effectively avoiding cross infection and preventing the injury of treatment personnel caused by abandonment.

In this embodiment, first slide 11 and third slide 13 are all vertical to be set up on needle file 1, are provided with second slide 12 between first slide 11 and the third slide 13, and second slide 12 is a parallel passageway, and it can supply first slider 21 level to pass through, and sliding sleeve 3 includes second slider 31 that sets up on casing and the casing, and the top of casing is provided with the pinhole that supplies syringe needle 4 to wear out, and second slider 31 establishes the lower extreme at the casing, second slider 31 is in all the time first slider 21's top. The locking ring 2 comprises a ring body and a first sliding block 21, the ring body is a hollow ring body, the first sliding block 21 is arranged at the bottom of the outer side of the ring body, a hollow structure is arranged at the top end of the ring body, the needle head 4 penetrates out, the needle head 4 is arranged vertically, the direction parallel to the needle head 4 is vertical, and the direction parallel to the needle head 4 is transverse to the direction perpendicular to the needle head 4.

The first slide way 11 and the third slide way 13 include a starting end and a terminating end, wherein one end of the first slide way 11 or the third slide way 13, into which the first slide block 21 or the second slide block 31 firstly enters, is the starting end, the other end of the first slide way 11 or the third slide way 13 is the terminating end, two ends of the second slide way 12 are respectively connected with the terminating end of the first slide way 11 and the starting end of the third slide way 13, preferably, the width of the second slide way 12 is smaller than the width of the first slide way 21 and the second slide block 31 after overlapping, wherein the width of the second slide way 12 refers to the width of the first slide way 21 in the vertical direction plus the width of the second slide way 31 in the vertical direction, and the vertical direction is parallel to the axial center direction of the needle 4.

In this embodiment, as shown in fig. 3, the needle holder 1 includes a sliding portion 14 and a mounting portion 15, the sliding portion 14 and the mounting portion 15 are both hollow cylinders, a needle mounting seat 16 is disposed at a joint of the sliding portion 14 and the mounting portion 15, the needle mounting seat 16 is used for mounting the needle 4, the needle 4 is fixed on the needle holder 1, a through hole is disposed on the needle mounting seat 16, and the needle 4 penetrates through the needle holder 1 and is located in the sliding portion 14 and the mounting portion 15.

Wherein, as shown in fig. 7, an internal thread is provided in the installation portion 15, and is used for installing an insulin pen, a sliding portion 14 is provided above the installation portion 15, the sliding portion 14 includes a top end and a bottom end, the bottom end is close to the installation portion 15, the top end is provided with a slide block inlet port, the slide block inlet port is communicated with the top end of the first slide way 11, and is a gradually narrowing structure with a large top and a small bottom, so that the slide block 21 is conveniently guided into the slide block inlet port, the second slide way 12 is provided at the bottom end of the sliding portion 14, and is close to the installation portion 15, the distance from the second slide way 12 to the top end of the sliding portion 14 is substantially equal to the height of the sliding sleeve 3, and after the first slide block 21 moves.

In this embodiment, as shown in fig. 5 and 6, the third sliding way 13 includes a limiting groove 131 and a sliding groove 132, the limiting groove 131 is used for limiting the movement of the first sliding block 21 in the vertical direction, the sliding groove 132 is used for sliding the first sliding block 21 in the vertical direction, the sliding groove 132 is communicated with the limiting groove 131, the beginning of the third sliding way 13 is located in the sliding groove 132, the end of the third sliding way 13 is located in the limiting groove 131, the first sliding block 21 slides to the end of the third sliding way 13 along the beginning of the third sliding way 13, that is, the first sliding block 21 slides from the sliding groove 132 to the limiting groove 131, wherein the direction of the limiting groove 131 is perpendicular to the direction of the first sliding way 11, and the limiting groove 131 is also arranged along the circumferential direction of the housing of the sliding part 14, which is perpendicular to the direction of the external force, which is the force that the sliding sleeve 3 is pressed to make the needle 4 expose the sliding sleeve 3 during actual use, the limiting groove 131 is arranged at one end of the, namely, the limiting groove 131 and the slide block inlet are at the same height, and after the first slide block 21 enters the limiting groove 131, the sliding sleeve 3 completely covers the needle 4.

The sliding groove 132 is a vertical groove parallel to the direction of the external force, preferably, the needle holder 1 further includes a limiting piece, the limiting piece unidirectionally blocks the connection between the limiting groove 131 and the sliding groove 132, the limiting piece is located at the connection between the limiting groove 131 and the sliding groove 132, and the unidirectional toggle piece is placed into the inner side of the limiting groove 131 from the outer side of the limiting groove 131. When the first slider 21 enters the stopper groove 131 from the slide groove 132, the stopper piece 17 can be pushed up and entered, and when the first slider 21 is ready to enter the slide groove 132 from the stopper groove 131, it is restricted by the stopper piece 17 and cannot move.

In this embodiment, referring to fig. 3 and 4, the elastic element 8 is installed in the needle holder 1 and the locking ring 2, the elastic element 8 is used for providing an elastic force opposite to the external force to the locking ring 2 and a torque force for rotating the first sliding block 21 towards the second sliding way 12, so that after the locking ring 2 is pressed into the needle holder 1 by the external force, the first sliding block 21 automatically rotates into the second sliding way 12 and enters the third sliding way 13 through the second sliding way 12, after the external force is lost, the elastic element 8 pushes the locking ring 2 to bounce along the sliding groove 132 by the elastic force of the locking ring 2, moves to the boundary between the sliding groove 132 and the limiting groove 131, and enters the limiting groove 131 under the torque force of the elastic element 8, so that the locking ring 2 automatically limits the movement of the sliding sleeve 3 on the locking ring 2, and avoids the complicated operation of limiting the sliding sleeve 3 by manual rotation after use, make the operation simpler, specifically, be provided with the convex part at elastic component 8 both ends, all be provided with in the fretwork circle of needle file 1 bottom and locking ring 2 and hinder the portion, convex part and the displacement at the restriction elastic component both ends of portion cooperation, in this embodiment, all be provided with three portion of hindering in needle file 1 and the locking ring 2, the portion of hindering of needle file 1 sets up around syringe needle mount pad 16, the portion of hindering in the locking ring 2 sets up around the centre of a circle at locking ring 2 top, elastic component 8 is back in locking ring 2 and the needle file 1 is installed, convex part on the elastic component 8 and the portion of hindering in locking ring 2 and the needle file 1 have produced the interference, thereby the displacement at elastic component 8 both ends has been restricted, when assembling locking ring 2 and needle file 1, need rotate locking ring 2 in advance, make elastic component 8 twisted, carry out the energy storage. Preferably, the elastic member 8 is a spring.

In this embodiment, as shown in fig. 2 and 8, a sheath 5 is sleeved on the needle base 1 and the slider 3, an inserting strip 51 is arranged in the sheath 5, a corresponding slot 17 is arranged on the needle base 1, the slot 17 is located between the first slideway 11 and the third slideway 13 and above the second slideway 12, the first slideway 11 and the third slideway 13 are separated by the inserting strip 51 on the sheath 5, the structure of the separating strip arranged on the needle base 1 is avoided, and meanwhile, the sheath 5 can be fixed relative to the needle base 1 by matching the inserting strip 51 and the slot 17, so that the sheath 5 is prevented from sliding, and a dual-purpose effect is achieved.

In this embodiment, combine shown in fig. 1, still be provided with protective sheath 6 in the outermost of needle file 1, overcoat 5 and sliding sleeve 3, protective sheath 6 is used for preventing that sliding sleeve 3 from being pressed by mistake and starting to lead to losing the effect, in the bottom of protective sheath 6, the bottom of needle file 1 is provided with sealing strip 7 promptly, sealing strip 7 covers the bottom at needle file 1, covers syringe needle 4 in the needle file 1, prevents that the user from accidentally injuring when taking, and keeps product sterile condition and prevents to pollute.

Although the present invention has been disclosed above, the scope of the present invention is not limited thereto. Without departing from the spirit and scope of the present invention, those skilled in the art can make various changes and modifications, which will fall into the protection scope of the present invention.

Claims (10)

1. An insulin pen needle is characterized by comprising a needle base (1), a locking ring (2) and a sliding sleeve (3), the needle seat (1) is provided with a first slideway (11), a second slideway (12) and a third slideway (13), the second slideway (12) is used for communicating the first slideway (11) and the third slideway (13), the locking ring (2) comprises a first slide (21), the first slide (21) being intended to move along the first slide (11), the second slide (12) and the third slide (13), and is limited in the third slideway (13), the extending direction of the first slideway (11) and the extending direction of the third slideway (13) are parallel to each other, the extending direction of the second slide way (12) is perpendicular to the extending direction of the first slide way (11), and the sliding sleeve (3) is sleeved on the locking ring (2).

2. The insulin pen needle according to claim 1, further comprising a second slider (31) disposed on the sliding sleeve (3), the second slider (31) moving along the first slideway (11).

3. The insulin pen needle according to claim 2, characterized in that the first slide way (11) and the third slide way (13) comprise a beginning end and a terminal end, wherein one end of the first slide way (11) or the third slide way (13) which the first slider (21) or the second slider (31) enters first is the beginning end, the other end thereof is the terminal end, and the two ends of the second slide way (12) are respectively connected with the terminal end of the first slide way (11) and the beginning end of the third slide way (13).

4. The insulin pen needle according to claim 2, characterized in that the width of the second slideway (12) is smaller than the width of the first slider (21) after overlapping with the second slider (31).

5. The insulin pen needle according to claim 1, characterized in that a limiting groove (131) is arranged in the third slide way (13), and the extending direction of the limiting groove (131) is perpendicular to the direction of the first slide way (11).

6. The insulin pen needle according to claim 1, further comprising an elastic member (8), wherein the elastic member (8) is installed in the inner cavity formed by the needle holder (1) and the locking ring (2), and the elastic member (8) is used for providing the locking ring (2) with elastic force along the direction of the first slideway (11) or the third slideway (13) and torsion force for rotating the first sliding block (21) towards the direction of the second slideway (12).

7. The insulin pen needle according to claim 6, characterized in that the two ends of the elastic member (8) are provided with protrusions, the two ends of the inner cavity formed by the needle base (1) and the locking ring (2) are provided with stopping parts, and the protrusions and the stopping parts are matched for limiting the displacement of the two ends of the elastic member (8).

8. The insulin pen needle according to claim 7, characterized in that the elastic member (8) is a spring.

9. The insulin pen needle according to any one of claims 2 to 4, further comprising a casing (5), wherein the casing (5) is sleeved on the needle seat (1) and the second slider (31), a strip (51) is arranged in the casing (5), a corresponding slot (17) is arranged on the needle seat (1), and the slot (17) is located between the first slideway (11) and the third slideway (13) and above the second slideway (12).

10. The insulin pen needle according to any one of claims 1 to 8, further comprising a needle (4) disposed in the needle holder (1), wherein the needle (4) penetrates both ends of the needle holder (1).

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