CN214860069U

CN214860069U - Prevent syringe protective sheath and syringe of stabbing

Info

Publication number: CN214860069U
Application number: CN202120096790.3U
Authority: CN
Inventors: 黄婧
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2021-11-26
Anticipated expiration: 2031-01-14

Abstract

The utility model relates to a puncture-proof syringe protective sleeve and a syringe, which comprises an inner sleeve and an outer sleeve; the inner skleeve and the coaxial fixed connection of syringe cylinder, the outside is equipped with the arch, can slide in the L type spout of outer skleeve to make the syringe protective sheath can not influence the normal work of syringe in the injection stage, wrap up the needle point after the injection and protect the nursing staff, even the dynamics uses great also difficult messenger outer skleeve and inner skleeve to break away from, and the operation is convenient more, swift, and the fault-tolerant rate is big. And the syringe protective sleeve can be conveniently separated from the syringe, is suitable for recycling, and greatly saves the cost.

Description

Prevent syringe protective sheath and syringe of stabbing

Technical Field

The utility model relates to a medical device, in particular to a puncture-proof syringe protective sleeve and a syringe.

Background

The statements in this section merely provide background information related to the present disclosure and may constitute prior art. In implementing the present invention, the inventors found that there are at least the following problems in the prior art.

The syringe is a common medical appliance, and achieves the treatment effect mainly by directly injecting liquid medicine into a human body. Because the most of the needles are adopted, the protective sleeve is sleeved before the injection, so that the medical care personnel are prevented from being hurt by the needles, but the probability of the puncture injury of the needles is increased because the protective sleeve is not arranged after the injection. Especially, some infectious departments can effectively avoid the infection caused by the needle stick injury.

The existing syringe protective sleeve is mainly sleeved on a needle stem part directly to play a role in protection. Firstly, the use is inconvenient, the protective sleeve needs to be pulled out before injection, and the needle stem needs to be sleeved with the protective sleeve again after injection; secondly, the sheath is taken out and the upper sheath is too close to the needle point, and the needle is easily punctured by negligence. However, most of the prior art uses such protective sleeves.

Patent application No. 201921797446.6 entitled "protective sleeve for syringe" discloses an inner protective sleeve and an outer protective sleeve arranged on a syringe barrel, and a convex ring and a bulge are used for locking the relative position of the outer protective sleeve and a needle. Under the condition of no injection, the needle point is always shielded by the outer protective sleeve, thereby playing the role of protecting medical personnel. However, this solution entails holding the rear end of the needle cannula with one hand and moving the outer protective sheath with the other hand to bring it to the desired position. Firstly, the operation is troublesome, the force needs to be controlled well, and the user can master the exercise well after repeated exercises. Once the force is slightly large, the outer protective sleeve is separated from the convex ring, the protective sleeve loses the function, and even the risk of being pricked by the needle head is increased; secondly, the syringe and the protective sheath rigid coupling, protective sheath or syringe all can't reuse, and the cost is great.

Disclosure of Invention

In view of the above, it is an object of the present invention to solve some of the problems of the prior art, or at least alleviate them.

A puncture-proof syringe protective sleeve comprises

The inner sleeve is used for being coaxially and fixedly connected with the needle cylinder of the injector;

an outer sleeve coaxial with the inner sleeve; the diameter of the outer sleeve is larger than that of the inner sleeve;

the inner sleeve (3) is provided with an outward clamping piece which is matched with the hollow part of the outer sleeve; or the outer sleeve (2) is provided with an inward clamping piece which is matched with the hollow part of the inner sleeve;

the outer sleeve has a length greater than a length of a needle of the syringe.

Optionally, the hollow-out of the outer sleeve (2) is a sliding groove, and the blocking part is a protrusion sliding in the sliding groove.

Further, the sliding groove is an L-shaped sliding groove.

Optionally, the outer sleeve is hollowed out to form a through hole, and the outward clamping piece is a pressing protrusion.

The inner sleeve is constructed of a tear-away material.

The inner wall of the outer sleeve is movably connected with at least two stopping strips.

An injector comprises a syringe, a needle head, a push rod and the injector protective sleeve for preventing puncture.

The utility model discloses following beneficial effect has:

1. the mode that the clamping pieces are matched with the hollows is adopted, so that the outer sleeve and the inner sleeve are not easy to separate even if the force is large, the operation is more convenient and quicker, the fault tolerance rate is high, and the method is more suitable for practical application;

2. the L-shaped sliding groove is matched with the protrusion, so that the operation is simpler and more convenient, and the outer sleeve is not easy to separate from the inner sleeve;

3. the reset spring can ensure that the syringe protective sleeve can be always kept in a protective state when not in use, so that a user is protected to the maximum extent;

4. the stop strip can be popped out before the outer sleeve is separated from the inner sleeve and clamped in a gap between the needle stem and the needle head to prevent the outer sleeve from being separated from the inner sleeve;

5. the syringe protective sheath can be detachably and fixedly connected with the needle cylinder, and can be repeatedly used after being detached, thereby greatly saving the cost.

Drawings

The above structure of the present invention can be further explained by the non-limiting examples given in the following figures.

FIG. 1 is a schematic view of a needle tip being wrapped according to one embodiment of the present invention;

FIG. 2 is a schematic view of the needle tip of one embodiment of the present invention when it is not wrapped;

FIG. 3 is a schematic view of an outer sleeve according to yet another embodiment of the present invention;

figure 4 is a schematic view of an inner sleeve of a further embodiment of the present invention;

FIG. 5 is a schematic view of a needle tip according to yet another embodiment of the present invention, without being wrapped;

FIG. 6 is a schematic view of a needle tip being wrapped in accordance with another embodiment of the present invention;

FIG. 7 is a top view of the stop strip of the present invention when it is folded;

fig. 8 is a top view of the stop strip of the present invention when released;

fig. 9 is a schematic view of a stop strip according to the present invention.

Wherein: 1-a syringe; 2-an outer sleeve; 3-an inner sleeve; 4-pressing type protrusion; 5-a through hole; 6-L type chute; 7-bulge; 8-a stop bar.

Detailed Description

The following description of the present invention will be further described with reference to the accompanying drawings, and the embodiments of the present invention are only used for illustrating the present invention and not for limiting the present invention, and various replacements and modifications can be made according to the common technical knowledge and the conventional means in the field without departing from the technical idea of the present invention, and all should be included in the scope of the present invention.

As shown in figure 1 or 2 or 5 or 6, the syringe protective sleeve for preventing puncture comprises

The inner sleeve 3 is used for being coaxially and fixedly connected with the needle cylinder of the injector 1;

an outer sleeve 2 coaxial with the inner sleeve 3; the diameter of the outer sleeve 2 is larger than that of the inner sleeve 3;

the inner sleeve 3 is provided with an outward clamping piece which is matched with the hollow part of the outer sleeve 2; or, the outer sleeve 2 is provided with an inward clamping piece which is matched with the hollow part of the inner sleeve 3;

the length of the outer sleeve 2 is greater than the length of the needle of the syringe 1.

The inner sleeve 3 is fixedly connected to the needle cylinder at a position close to the needle head, and the detent can limit the axial sliding of the outer sleeve 2, so that the outer sleeve 2 can be in a proper position as required. For example, when it is desired to protect the user, outer sleeve 2 is in a protective condition (i.e., an extended condition in which it encloses the needle tip), as shown in fig. 1 or 6; when an injection or needle change is required, the outer sleeve 2 is in the use position (i.e. the retracted position in which the needle is fully exposed) as shown in figures 2 or 5. Adopt screens piece and fretwork looks adaptation's mode, even the dynamics uses great also difficult messenger outer sleeve 2 and inner skleeve 3 to break away from, and the operation is convenient more, swift, and the fault-tolerant rate is big, more is fit for the in-service use.

Optionally, the outer sleeve 2 is hollowed out to form a sliding groove, and the detent is a protrusion 7 that slides in the sliding groove, as shown in fig. 3 or 4. Optionally, the chute is an L-shaped chute 6, as shown in fig. 3, 5 or 6. The protrusion 7 can be fixedly connected with the outer wall of the inner sleeve 3 by means of bonding or the like, and one end of the protrusion 7 can slide in the L-shaped sliding groove 6 of the outer sleeve 2. The outer sleeve 2 is normally in a protective condition as shown in figure 6. When the injector needs to be used for injection and the like, the outer sleeve 2 can be fixed only by pushing the outer sleeve 2 to the bottom of the L-shaped chute 6 towards the push rod direction of the injector 1 and then rotating, as shown in fig. 5. The needle is completely exposed at the moment, and the normal use is not influenced. After the use is finished, the outer sleeve 2 only needs to be rotated reversely, the bulge 7 is moved to the corner of the L-shaped sliding groove 6, the outer sleeve 2 can be in a protection state again through gravity or manually, and the user is continuously protected.

Of course, the syringe protective sleeve can be ensured to be always kept in the protective state when not in use by the return spring. For example, the upper end of the outer sleeve 2 may be clearance fitted with the barrel. A return spring can be arranged between the upper end of the outer sleeve 2 and the upper end of the inner sleeve 3. When the protrusion 7 moves to the corner of the L-shaped sliding groove 6, the elastic force of the return spring is released, so that the outer sleeve 2 is automatically set in a protection state, as shown in fig. 6, thereby protecting the user. In this way, the user does not need to move the outer sleeve 2 downwards or manually into the protective position after using the syringe 1. Moreover, when the needle head is upward, the outer sleeve 2 can not slide down due to gravity to expose the needle point because of the return spring, and the user can be protected to the maximum extent.

The sliding groove can also be in other shapes with corners, not only in an L shape.

Or, the outer sleeve 2 is fixedly provided with an inward bulge 7, and the inner sleeve 3 is provided with an L-shaped sliding groove 6. The protrusion 7 slides in the L-shaped sliding slot 6 of the inner sleeve 3. Compared with the prior art, the L-shaped sliding groove 6 is arranged on the outer sleeve 2, so that a user can better observe the moving state of the outer sleeve 2, and the operation is more convenient.

Optionally, the outer sleeve 2 is hollowed to form a through hole 5, and the outward locking member is a pressing protrusion 4, as shown in fig. 1 or 2. The pressing protrusion 4 may be formed of a button and a spring piece, one end of the spring piece is connected to the outer wall of the inner sleeve 3 by bonding or the like, and the other end is connected to the button. The syringe protection sleeve is in a protection state at ordinary times, as shown in figure 1. When use is required, the through hole 5 of the outer sleeve 2 can be manually pushed up to the pressing protrusion 4. Because the pressing type bulge 4 keeps a certain outward elasticity, when the through hole 5 is matched with the pressing type bulge, the button can be clamped at the through hole 5 as shown in figure 2, so that the position of the outer sleeve 2 is fixed, and the syringe protective sleeve is in a using state; when the syringe is not used, the button is pressed downwards, the pressing type bulge 4 is separated from the through hole 5, and meanwhile, the outer sleeve 2 is manually moved towards the direction far away from the push rod, so that the syringe protective sleeve can be placed in a protective state again.

With the above arrangement, the outer sleeve 2 and the inner sleeve 3 may be in the shape of not only hollow cylinders but also hollow rectangular solids.

The inner wall of the outer sleeve 2 is movably connected with at least two stopping strips 8, and the stopping strips 8 can be unfolded when not in a stress state and are perpendicular to the inner wall of the outer sleeve 2 to prevent the outer sleeve 2 from being separated from the inner sleeve 3 due to excessive movement. As shown in fig. 9, the inner wall of the outer sleeve 2 is evenly and movably connected with 3 stop bars 8. Since the outer sleeve 2 is coaxially sleeved on the needle cylinder and the inner sleeve 3, the stop strips 8 are limited to be in a contracted state, as shown in fig. 7. When the distance of the outer sleeve 2 moving towards the needle point is too much, the 3 stopping strips 8 are not limited to stretch out and are perpendicular to the inner wall of the outer sleeve 2 to form a triangle which is clamped in the gap between the needle stem and the needle head, as shown in fig. 8, so that the outer sleeve 2 is prevented from being separated from the inner sleeve 3.

The number of the stop bars 8 can be 2 or more.

As shown in figure 1 or 2, the injector comprises a needle cylinder, a needle head and a push rod, and also comprises the anti-puncture injector protective sleeve.

The syringe 1 can be integrally formed with the puncture-proof syringe protective sleeve, and the inner sleeve 3 of the syringe protective sleeve can also be coaxially fixed on the syringe through a double-sided adhesive tape, a hoop and the like. When the needle cylinder and the injector protective sleeve are required to be separated, the needle cylinder and the injector protective sleeve can be separated only by loosening the clamp or tearing off the double-faced adhesive tape, the operation is convenient, the injector protective sleeve can be recycled, and the cost is greatly saved.

Alternatively, the inner sleeve 3 is made of a tear-off material, such as double-sided adhesive tape. When the syringe is installed, one surface of the double-sided adhesive tape is firstly adhered to one end of the syringe close to the needle head, the other surface of the double-sided adhesive tape is fixed on the protrusion 7 or the pressing protrusion 4 in a bonding mode or the like, and then the outer sleeve 2 is sleeved at the corresponding position. One end of the double-faced adhesive tape is exposed, when the needle cylinder and the syringe protective sleeve need to be separated, only one end of the double-faced adhesive tape needs to be pulled, and the double-faced adhesive tape is torn out completely, so that the outer sleeve 2 can be separated from the needle cylinder.

The syringe protective sleeve is mainly used for intramuscular injection and intradermal injection, reduces the problem that nursing staff are stabbed, and avoids infection of the nursing staff to the maximum extent. And the structure is simple, the fault-tolerant rate is high, and the use is convenient.

The fixed connection which is not specified can be a connection mode such as riveting, welding, bolt connection and the like, a movable connection can be a connection mode such as hinging and the like.

Claims

1. A puncture-proof syringe protective sleeve is characterized by comprising

The inner sleeve (3) is used for being coaxially and fixedly connected with the needle cylinder of the injector (1);

an outer sleeve (2) coaxial with the inner sleeve (3); the diameter of the outer sleeve (2) is larger than that of the inner sleeve (3);

the inner sleeve (3) is provided with an outward clamping piece which is matched with the hollow part of the outer sleeve (2); or the outer sleeve (2) is provided with an inward clamping piece which is matched with the hollow part of the inner sleeve (3);

the length of the outer sleeve (2) is larger than that of the needle of the syringe (1).

2. A puncture resistant syringe boot according to claim 1, characterized in that the cutout of the outer sleeve (2) is a sliding groove and the detent is a protrusion (7) sliding in the sliding groove.

3. A puncture resistant syringe boot according to claim 2, characterized in that the chute is an L-shaped chute (6).

4. A puncture resistant syringe protection cover according to claim 1, characterized in that the outer sleeve (2) is pierced with a through hole (5) and the outward facing detent is a press-on protrusion (4).

5. A puncture resistant syringe protection cover according to claim 1, characterized in that the inner sleeve (3) consists of a tearable material.

6. A puncture resistant syringe boot according to claim 1, characterized in that at least two stop bars (8) are movably connected to the inner wall of the outer sleeve (2).

7. A syringe comprising a barrel, a needle and a plunger, characterized in that it further comprises a puncture-resistant syringe protection cover according to any one of claims 1 to 6.