CN219183769U

CN219183769U - Blood taking needle assembly with self-ejection type protection function

Info

Publication number: CN219183769U
Application number: CN202221526938.3U
Authority: CN
Inventors: 范香格; 常海洋; 吴洋
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-19
Filing date: 2022-06-19
Publication date: 2023-06-16
Anticipated expiration: 2032-06-19

Abstract

The utility model discloses a blood taking needle component with a self-elastic protection function, which relates to the technical field of blood taking needles, and comprises a flow guiding hose, wherein two ends of the flow guiding hose are fixedly communicated with a puncture needle head and a blood taking needle head respectively, the puncture needle head is provided with a protective cover, and the blood taking needle head is provided with a protective plug; a protective shell is arranged on the surface of the joint of the puncture needle head and the diversion hose, and an opening for the puncture needle head to extend in is formed in the surface of the protective shell; the telescopic component is arranged in the protective shell and connected with the guide hose, can drive the guide hose to move in the protective shell, and comprises a limiting component; the sliding part is arranged at the joint of the flow guide hose and the blood taking needle head, the blood taking needle head can be covered by sliding through the sliding part, a protection effect is achieved, the puncture needle head is driven to extend into the protective shell under the action of the telescopic part, the needle head is prevented from being touched by mistake, the blood taking needle head is covered under the action of the sliding part, and the blood leakage is prevented.

Description

Blood taking needle assembly with self-ejection type protection function

Technical Field

The utility model relates to the technical field of blood taking needles, in particular to a blood taking needle assembly with a self-elastic protection function.

Background

The blood taking needle is an instrument for collecting blood samples in the medical examination process, the blood taking needle at the top end of the venous blood taking needle is used for puncturing blood vessels, a transparent hose at the tail end is connected with the tail needle, the tail needle is wrapped by the rubber hose, a needle cap is sleeved outside the tail needle and used for puncturing a vacuum blood taking test tube, blood is sucked into the tube by utilizing negative pressure in the test tube, and the blood sample is collected and tested, so that the purpose is to obtain blood components and the detection of bacteriological and virological infection levels in blood through the analysis and the detection of the blood components so as to know physiological and pathological conditions of a human body.

At present, the needle head of the blood taking needle can be exposed outside when the needle is pulled out, the needle head is easy to be mistakenly pulled out to cause injury of medical staff, blood is easy to leak when the tail needle is pulled out, limbs are caused to contact with the blood, and the infection risk is increased.

Disclosure of Invention

The utility model aims to provide a blood taking needle assembly with a self-elastic protection function, which has the effects of preventing the needle from being touched by mistake by driving the puncture needle to extend into a protective shell under the action of a telescopic component, and preventing blood from leaking by covering the blood taking needle under the action of a sliding component, thereby solving the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a lancet assembly with self-ejecting protective function, comprising:

the blood collection device comprises a flow guide hose, wherein two ends of the flow guide hose are fixedly communicated with a puncture needle head and a blood collection needle head respectively, a protective cover is arranged on the puncture needle head, and a protective plug is arranged on the blood collection needle head; a protective shell is arranged on the surface of the joint of the puncture needle head and the guide hose, and an opening for the puncture needle head to extend in is formed in the surface of the protective shell;

the telescopic component is arranged in the protective shell and connected with the guide hose, and can drive the guide hose to move in the protective shell, and the telescopic component comprises a limiting component;

the sliding part is arranged at the joint of the flow guide hose and the blood taking needle head, and can cover the blood taking needle head through sliding of the sliding part, so that a protection effect is achieved.

Optionally, the sliding part includes the locating plate, the locating plate is fixed to be cup jointed the surface of water conservancy diversion hose and be close to blood sampling syringe needle one side, the terminal surface fixedly connected with limiting plate of locating plate, the surface sliding of limiting plate has cup jointed the lag, the length of lag is greater than the length of blood sampling syringe needle, the protection plug with lag looks adaptation.

Optionally, the telescopic part includes the needle handle, the sliding port that is used for the needle handle passes and sliding connection with it is seted up to the surface of protective housing, the tip fixedly connected with cover piece of needle handle, the cover piece is fixed to be cup jointed the surface of water conservancy diversion hose.

Optionally, the spacing part includes the fixture block, be used for the recess that the fixture block stretched into is seted up to the surface of cover piece, the inner wall fixedly connected with spring of recess, be the tip of spring with the fixed surface of fixture block is connected, the draw-in groove and the fixed slot that are used for the fixture block to stretch into are seted up to the inner wall of protective housing, the inner wall sliding connection of draw-in groove has the clamp plate, the fixed surface of clamp plate is connected with the depression bar, the tip of depression bar stretches out protective housing and tip fixedly connected with disc.

Optionally, inclined surface parts are respectively arranged on two sides of the surface of the clamping block, so that the clamping block can conveniently extend into the clamping groove and the fixing groove.

Optionally, the surface of needle handle evenly is provided with a plurality of anti-skidding protruding grains to increase frictional force, avoid causing the patient uncomfortable when using.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, after blood collection is finished, the protective sleeve is pushed to move towards the blood collection needle head until the blood collection needle head is wrapped in the protective sleeve, and the protective sleeve is clamped by the protective plug, so that sealing is realized, limbs are prevented from contacting blood and the false contact needle head, and the safety of the blood collection needle in use is improved.

2. According to the utility model, the pressing rod is driven to slide in the clamping groove by pressing the disc, the clamping block is gradually pressed out of the clamping groove, when the clamping block is separated from the clamping groove, the needle handle is pressed and moved, the sleeve block, the guide hose and the puncture needle head are driven to move by the needle handle until the clamping block contacts with the fixing groove, the clamping block automatically bounces into the fixing groove under the action of elastic restoring force to fix the sleeve block, and the puncture needle head is completely positioned in the protective shell at the moment, so that injuries and infections caused by the false contact of the needle head are avoided.

3. According to the utility model, the clamping block automatically bounces into the fixing groove under the action of elastic restoring force of the spring to fix the sleeve block, and then the puncture needle cannot move, so that the possibility of repeated use of the puncture needle is avoided, and cross infection is avoided.

Drawings

FIG. 1 is an isometric view of a construction of the present utility model;

FIG. 2 is a cross-sectional view of a protective shell structure of the present utility model;

fig. 3 is an enlarged view of the structure of fig. 2 a in accordance with the present utility model.

In the figure: 1. a puncture needle; 2. a protective shell; 3. a blood collection needle; 4. sleeving blocks; 5. a guide hose; 6. a needle handle; 7. a sliding port; 8. a positioning plate; 9. a protective sleeve; 10. a limiting plate; 11. a protective plug; 12. a clamping block; 13. a groove; 14. a spring; 15. a clamping groove; 16. a pressing plate; 17. a compression bar; 18. a protective cover; 19. a fixing groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 3, in this embodiment, a lancet assembly with a self-ejection protection function is provided, which includes:

the blood-taking device comprises a flow-guiding hose 5, wherein a puncture needle head 1 and a blood-taking needle head 3 are fixedly communicated with two ends of the flow-guiding hose 5 respectively, a protective cover 18 is arranged on the puncture needle head 1, and a protective plug 11 is arranged on the blood-taking needle head 3. The surface of the joint of the puncture needle head 1 and the diversion hose 5 is provided with a protective shell 2, and the surface of the protective shell 2 is provided with an opening for the puncture needle head 1 to extend in.

The telescopic part is arranged in the protective shell 2 and is connected with the guide hose 5, and can drive the guide hose 5 to move in the protective shell 2, and the telescopic part comprises a limiting part.

The sliding part is arranged at the joint of the guide hose 5 and the blood taking needle head 3, and the blood taking needle head 3 can be covered by sliding of the sliding part, so that a protection effect is achieved.

More specifically, in this embodiment, when using, open safety cover 18 and protection plug 11, carry out blood sampling work, after the blood sampling, drive puncture needle 1 and stretch into protective housing 2 through telescopic part's effect down, avoid the mistake to touch the needle to it is fixed through limiting part, cover blood sampling needle 3 through sliding part's effect down, prevent that blood from spilling, avoid limbs to contact blood, the security when improving blood sampling needle and using.

Further, in the present embodiment: the sliding part comprises a positioning plate 8, the positioning plate 8 is fixedly sleeved on the surface of the guide hose 5 and is close to one side of the blood taking needle head 3, the end face of the positioning plate 8 is fixedly connected with a limiting plate 10, the surface of the limiting plate 10 is slidably sleeved with a protective sleeve 9, the length of the protective sleeve 9 is greater than that of the blood taking needle head 3, and a protective plug 11 is matched with the protective sleeve 9.

More specifically, in this embodiment, after the blood collection is completed, the blood collection needle 3 is separated from the vacuum blood collection tube, and blood easily flows out during separation, and the protecting sleeve 9 is pushed to move towards the blood collection needle 3 until the blood collection needle is wrapped in the protecting sleeve 9, and the protecting sleeve 9 is blocked by the protecting plug 11, so that sealing is achieved, limb contact with blood is avoided, and safety during use is improved.

Further, in the present embodiment: the telescopic part comprises a needle handle 6, a sliding opening 7 which is used for the needle handle 6 to pass through and be connected with the needle handle in a sliding way is formed in the surface of the protective shell 2, a sleeve block 4 is fixedly connected with the end part of the needle handle 6, and the sleeve block 4 is fixedly sleeved on the surface of the guide hose 5.

More specifically, in this embodiment, when blood is collected, the clamping block 12 extends into the clamping groove 15, so that the guiding hose 5 is limited by the sleeve block 4, and the stability of the blood collection is ensured.

Further, in the present embodiment: the limiting component comprises a clamping block 12, a groove 13 for the clamping block 12 to extend into is formed in the surface of the sleeve block 4, a spring 14 is fixedly connected to the inner wall of the groove 13, the end portion of the spring 14 is fixedly connected with the surface of the clamping block 12, a clamping groove 15 and a fixing groove 19 for the clamping block 12 to extend into are formed in the inner wall of the protective shell 2, a pressing plate 16 is slidably connected to the inner wall of the clamping groove 15, a pressing rod 17 is fixedly connected to the surface of the pressing plate 16, and the end portion of the pressing rod 17 extends out of the protective shell 2 and is fixedly connected with a disc.

More specifically, in this embodiment, after blood collection is completed, the pressing rod 17 is driven to slide in the clamping groove 15 by pressing the disc, the clamping block 12 is pressed out of the clamping groove 15, then the needle handle 6 is pressed and moved towards the bottom of the protective shell 2, the sleeve block 4 is driven to move by the movement of the needle handle 6, the guide hose 5 and the puncture needle 1 are driven to move by the movement of the sleeve block 4, the pressure is continuously caused to the clamping block 12 by the protective shell 2 in the process of moving the sleeve block 4, the pressing spring 14 contracts until the clamping block 12 contacts with the fixing groove 19, the clamping block 12 automatically springs into the fixing groove 19 under the action of elastic restoring force, the puncture needle 1 is completely positioned in the protective shell 2 at the moment, the damage and infection caused by the false head are avoided, the safety in use is further improved, and the puncture needle 1 cannot move afterwards, so that the possibility of repeated use of the puncture needle 1 is avoided, and cross infection is avoided.

Further, in the present embodiment: the two sides of the surface of the clamping block 12 are provided with inclined surface parts, so that the clamping block 12 can conveniently extend into the clamping groove 15 and the fixing groove 19 when in use.

Further, in the present embodiment: the surface of needle handle 6 evenly is provided with a plurality of anti-skidding protruding grains, through setting up a plurality of anti-skidding protruding grains in order to increase frictional force when using, prevents that the hand from sliding and leading to the syringe needle to rock, improves patient's comfort level.

Working principle: when this blood taking needle subassembly with from bullet protect function uses, initial state is as shown in fig. 1 and fig. 2, fixture block 12 stretches into draw-in groove 15 this moment, thereby carry out spacingly with water conservancy diversion hose 5 through cover piece 4, stability when guaranteeing the blood sampling, then open safety cover 18 and protection plug 11, blood sampling, after the blood sampling finishes, break away from blood taking needle 3 and vacuum heparin tube, easy blood outflow has when breaking away from, promote lag 9 to blood taking needle 3 direction at this moment and remove, until with its package in lag 9, and block lag 9 with protection plug 11, realize sealedly, avoid limbs to contact blood, the security when improving blood taking needle uses.

After blood collection is finished, the pressing rod 17 is driven to slide in the clamping groove 15 through pressing the disc, the clamping block 12 is gradually pressed out of the clamping groove 15, when the clamping block 12 is separated from the clamping groove 15, the needle handle 6 is pressed and is enabled to move towards the bottom of the protective shell 2, the sleeve block 4 is driven to move, the guide hose 5 and the puncture needle 1 are driven to move through the sleeve block 4, the protective shell 2 continuously causes pressure on the clamping block 12 in the moving process of the sleeve block 4, the pressing spring 14 contracts until the clamping block 12 is contacted with the fixing groove 19, the spring 14 is not stressed any more, the clamping block 12 automatically bounces into the fixing groove 19 under the action of elastic restoring force, the sleeve block 4 is fixed, and at the moment, the puncture needle 1 is completely positioned in the protective shell 2, injuries and infections caused by the wrong contact needle head are avoided, safety in use is further improved, and after that the puncture needle 1 cannot move, the possibility of repeated use of the puncture needle 1 is avoided, and cross infection is avoided.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A lancet assembly with self-ejecting protective function, comprising:

the blood collection device comprises a flow guide hose (5), wherein two ends of the flow guide hose (5) are fixedly communicated with a puncture needle head (1) and a blood collection needle head (3) respectively, a protective cover (18) is arranged on the puncture needle head (1), and a protective plug (11) is arranged on the blood collection needle head (3); a protective shell (2) is arranged on the surface of the joint of the puncture needle (1) and the guide hose (5), and an opening for the puncture needle (1) to extend into is formed in the surface of the protective shell (2);

the telescopic component is arranged in the protective shell (2) and connected with the guide hose (5) and can drive the guide hose (5) to move in the protective shell (2), and the telescopic component comprises a limiting component;

the sliding part is arranged at the joint of the guide hose (5) and the blood taking needle head (3), and the blood taking needle head (3) can be covered by sliding of the sliding part, so that a protection effect is achieved.

2. The lancet assembly with self-ejecting protective function according to claim 1, wherein: the sliding part comprises a locating plate (8), the locating plate (8) is fixedly sleeved on the surface of the guide hose (5) and is close to one side of the blood sampling needle head (3), the end face of the locating plate (8) is fixedly connected with a limiting plate (10), the surface of the limiting plate (10) is slidably sleeved with a protective sleeve (9), the length of the protective sleeve (9) is larger than that of the blood sampling needle head (3), and the protective plug (11) is matched with the protective sleeve (9).

3. The lancet assembly with self-ejecting protection as recited in claim 2 wherein: the telescopic component comprises a needle handle (6), a sliding port (7) used for the needle handle (6) to penetrate through and be in sliding connection with the needle handle is formed in the surface of the protective shell (2), a sleeve block (4) is fixedly connected to the end portion of the needle handle (6), and the sleeve block (4) is fixedly sleeved on the surface of the guide hose (5).

4. The lancet assembly with self-ejecting protective function according to claim 3, wherein: the limiting component comprises a clamping block (12), a groove (13) used for enabling the clamping block (12) to extend in is formed in the surface of the sleeve block (4), a spring (14) is fixedly connected to the inner wall of the groove (13), the end portion of the spring (14) is fixedly connected with the surface of the clamping block (12), a clamping groove (15) and a fixing groove (19) used for enabling the clamping block (12) to extend in are formed in the inner wall of the protective shell (2), a pressing plate (16) is slidably connected to the inner wall of the clamping groove (15), a pressing rod (17) is fixedly connected to the surface of the pressing plate (16), and the end portion of the pressing rod (17) extends out of the protective shell (2) and is fixedly connected with a disc.

5. The lancet assembly with self-ejecting protective function according to claim 4, wherein: inclined surface parts are arranged on two sides of the surface of the clamping block (12) so as to conveniently extend into the clamping groove (15) and the fixing groove (19).

6. The lancet assembly with self-ejecting protective function according to claim 3, wherein: the surface of the needle handle (6) is uniformly provided with a plurality of anti-slip convex particles so as to increase friction force and avoid discomfort of patients during use.