CN211911627U

CN211911627U - Safe type vein blood taking needle

Info

Publication number: CN211911627U
Application number: CN202020043906.2U
Authority: CN
Inventors: 孙任吾
Original assignee: Nanan Yixing Machinery Technology Co Ltd
Current assignee: Nanan Yixing Machinery Technology Co Ltd
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2020-11-13
Anticipated expiration: 2030-01-09

Abstract

The utility model discloses a safe type blood sampling needle, which comprises a housin, the upper end fixed mounting of casing has the supporting seat, there is the puncture end bottom of supporting seat through connecting plate fixed mounting, the inside of heparin tube is inserted on the upper portion of puncture end, the other end and the syringe needle of pipe are connected, the both sides fixed mounting of syringe needle has the fixture block, the fixture block joint is in the draw-in groove of vertically seting up on the stop collar lateral wall, the inside slidable mounting of casing has the fly leaf, plastic pipe and pipe fixed connection are passed through at the middle part of fly leaf, fixed mounting has the spring between the upside of fly leaf and the bottom of supporting seat, the spout has been seted up to the inside wall of casing lower part, the inboard slidable mounting of spout has the slide bar, slide bar. This blood taking needle, convenient to use, after finishing using, can retrieve inside the casing, avoid the syringe needle to stab the staff and cause cross infection when carrying out centralized processing to it.

Description

Safe type vein blood taking needle

Technical Field

The utility model belongs to the technical field of the blood taking needle, concretely relates to safe type vein blood taking needle.

Background

In the medical field, medical staff acquire and acquire physiological and pathological information of human bodies through various means for correctly diagnosing diseases, wherein the acquisition of blood samples generally has the following three ways: (1) subcutaneous blood sampling is mainly used for simple classified counting detection of blood components, and subcutaneous blood sampling needles are mostly used; (2) the venous blood sampling can carry out detailed detection on hematology, blood etiology and other related subject indexes, has wide clinical application, and is mostly carried out by using a pen type or split type venous blood sampling needle; (3) the artery blood sampling is mainly used for detecting the artery blood gas indexes in critical emergency, is less in application and is mainly collected by using a special injector for artery blood sampling. The blood sample is collected and tested, and the aim is to analyze and detect blood components, obtain the blood components and the detection of the infection level of bacteriology and virology in blood, know the physiological and pathological conditions of human bodies, or know the effect after drug treatment, and judge the development, prognosis and prognosis of diseases, and the like.

The safety type venous blood taking needle needs to be treated in a centralized mode after being used, the needle cap of the needle head is easy to fall off in the recovery process of the safety type venous blood taking needle in use at present, and workers are easy to be pricked in the treatment process to cause cross infection. Therefore, a novel safety type venous blood taking needle needs to be designed for use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a safe type vein blood taking needle comes into operation to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a safety type venous blood taking needle comprises a shell, a supporting seat is fixedly arranged at the upper end of the shell, the bottom of the supporting seat is fixedly provided with a puncture end through a connecting plate, the upper part of the puncture end is inserted into the blood sampling tube, the lower end of the puncture end is communicated with a catheter, the other end of the catheter is connected with a needle head, clamping blocks are fixedly arranged on two sides of the needle head, the clamping block is clamped in a clamping groove longitudinally formed in the side wall of the limiting sleeve, the limiting sleeve is fixedly arranged at the lower end of the shell, a movable plate is slidably arranged in the shell, the middle part of the movable plate is fixedly connected with the guide pipe through a plastic pipe, a spring is fixedly arranged between the upper side of the movable plate and the bottom of the supporting seat, a sliding groove is arranged on the inner side wall of the lower part of the shell, the inner side of the sliding groove is provided with a sliding rod in a sliding mode, and the sliding rod is fixedly arranged at the end portion of the elastic piece.

Preferably, the outer side wall of the shell is sleeved with a rubber sleeve, and the side wall of the rubber sleeve is provided with a plurality of annular grooves.

Preferably, the plastic pipe penetrates through the middle part of the inner side of the movable plate and is fixedly installed, and the outer side wall of the guide pipe is adhered to the inner wall of the plastic pipe through environment-friendly glue.

Preferably, the movable plate is a circular plastic plate, and the edge of the movable plate is a smooth arc surface.

Preferably, the depth of the clamping groove is larger than the length of the needle head, and the width of the clamping groove is slightly larger than the width of the clamping block.

Preferably, four elastic sheets are uniformly arranged on the lower part of the inner side of the shell, and the elastic sheets are bent stainless steel sheets.

The utility model discloses a technological effect and advantage: this safe type blood sampling needle promotes the fly leaf to the upper end of shell fragment after using, makes the inside that the casing was retrieved to fly leaf pulling pipe through the spring restoring force, and the syringe needle falls into the inside of stop collar, avoids the needle cap to drop the syringe needle and exposes and pricks the staff, and the security is stronger.

Drawings

Fig. 1 is a schematic structural view (a catheter recovery state) of the present invention;

FIG. 2 is a schematic view of the connection between the conduit and the movable plate;

fig. 3 is a sectional view of the housing (catheter pulled-out state);

fig. 4 is a top view of the housing.

In the figure: 1. a blood collection tube; 2. a spring; 3. a supporting seat; 4. a rubber sleeve; 5. an annular groove; 6. a housing; 7. a limiting sleeve; 8. a card slot; 9. a clamping block; 10. a needle head; 11. a puncture end; 12. a connecting plate; 13. a conduit; 14. a chute; 15. a spring plate; 16. a slide bar; 17. plastic pipes; 18. a movable plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a safety type venous blood taking needle as shown in figures 1-4, which comprises a shell 6, wherein a supporting seat 3 is fixedly arranged at the upper end of the shell 6, a puncture end 11 is fixedly arranged at the bottom of the supporting seat 3 through a connecting plate 12, the upper part of the puncture end 11 is inserted into a blood taking tube 1, the lower end of the puncture end 11 is communicated with a conduit 13, the other end of the conduit 13 is connected with a needle head 10, clamping blocks 9 are fixedly arranged at the two sides of the needle head 10, the clamping blocks 9 are clamped in clamping grooves 8 which are longitudinally arranged on the side wall of a limiting sleeve 7, the limiting sleeve 7 is fixedly arranged at the lower end of the shell 6, a movable plate 18 is slidably arranged in the shell 6, the middle part of the movable plate 18 is fixedly connected with the conduit 13 through a plastic tube 17, a spring 2 is fixedly arranged between the upper side of, the inner side wall of the lower portion of the shell 6 is provided with a sliding groove 14, a sliding rod 16 is slidably mounted on the inner side of the sliding groove 14, and the sliding rod 16 is fixedly mounted at the end portion of the elastic sheet 15.

Specifically, the rubber sleeve 4 has been cup jointed on the 6 lateral walls of casing, and is provided with a plurality of annular groove 5 on the lateral wall of rubber sleeve 4, guarantees to the stability of 6 grippings of casing 6 when grabbing casing 6 and inserting the inboard puncture end 11 of supporting seat 3 into heparin tube 1 inside, avoids the slippage of casing 6.

Specifically, plastic pipe 17 runs through fixed mounting in the inboard middle part of fly leaf 18, the inner wall adhesion of pipe 13 and plastic pipe 17 is passed through to the lateral wall of pipe 13, guarantees the compactness that pipe 13 and plastic pipe 17 are connected to can drive the activity of plastic pipe 17 through fly leaf 18, thereby drive straightening and the bending of pipe 13, realize the recovery and stretching out of pipe 13.

Specifically, the movable plate 18 is a circular plastic plate, and the edge of the movable plate 18 is set to be a smooth arc surface, so that the edge of the movable plate 18 can be pressed against the elastic sheet 15, the movable plate 18 slides above or below the elastic sheet 15, the position of the movable plate 18 is controlled, and the catheter 13 is recovered and released.

Specifically, the degree of depth of draw-in groove 8 is greater than the length of syringe needle 10, and the width of draw-in groove 8 slightly is greater than the width of fixture block 9, when guaranteeing that pipe 13 retrieves completely, the inboard of stop collar 7 can be retrieved completely to syringe needle 10 to guarantee the rigidity of syringe needle 10 in clamping to draw-in groove 8 through fixture block 9 joint, and syringe needle 10 stretches out stop collar 7 through draw-in groove 8 and exposes and pricks the staff in the external world.

Specifically, four elastic sheets 15 are uniformly arranged on the lower portion of the inner side of the shell 6, each elastic sheet 15 is a bent stainless steel sheet, the four elastic sheets 15 support and limit the movable plate 18, the positioning stability of the movable plate 18 is guaranteed, the elasticity and the mechanical toughness of the elastic sheets 15 are guaranteed, and the movable plate 18 slides to the upper portion and the lower portion of the elastic sheets 15 through the extrusion of the movable plate 18 and the outer wall of the elastic sheets 15, so that the recycling and releasing operation of the guide pipe 13 is achieved.

The working principle is as follows: when the blood taking needle is used, the two clamping blocks 9 are clamped by fingers and pulled outwards, so that the conduit 13 extends towards the outer side of the shell 6, the movable plate 18 is driven to slide downwards on the inner side of the shell 6, the spring 2 on the upper side of the movable plate 18 is stretched between the movable plate 18 and the bottom of the support seat 3, when the movable plate 18 slides to the position of the elastic sheet 15, the edge of the movable plate 18 is squeezed between the elastic sheet 15, the sliding rod 16 at the end part of the elastic sheet 15 slides in the sliding groove 14, the elastic sheet 15 approaches to the side wall of the shell 6, so that the movable plate 18 slides to the lower end of the elastic sheet 15, the movable plate 18 is positioned, the needle 10 is inserted into a blood vessel, after the needle 10 is fixed, the puncture end 11 in the support seat 3 is inserted into the blood taking tube 1 for blood taking, after the blood taking is finished, the movable plate 18 is pushed upwards through the limiting sleeve, and through the restoring force of spring 2, pulling pipe 13 and retrieving to the inside of casing 6, syringe needle 10 slides to the inside of stop collar 7 to fixture block 9 is blocked and is connected to the inside of draw-in groove 8, accomplishes and retrieves.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A safety type venous blood taking needle comprises a shell (6), and is characterized in that: the upper end of the shell (6) is fixedly provided with a supporting seat (3), the bottom of the supporting seat (3) is fixedly provided with a puncture end (11) through a connecting plate (12), the upper part of the puncture end (11) is inserted into the blood collection tube (1), the lower end of the puncture end (11) is communicated with a conduit (13), the other end of the conduit (13) is connected with a needle (10), two sides of the needle (10) are fixedly provided with clamping blocks (9), the clamping blocks (9) are clamped in clamping grooves (8) longitudinally formed in the side wall of a limiting sleeve (7), the limiting sleeve (7) is fixedly arranged at the lower end of the shell (6), a movable plate (18) is slidably arranged inside the shell (6), the middle part of the movable plate (18) is fixedly connected with the conduit (13) through a plastic tube (17), and a spring (2) is fixedly arranged between the upper side of the movable plate (18) and the bottom of the supporting seat (3), the shell is characterized in that a sliding groove (14) is formed in the inner side wall of the lower portion of the shell (6), a sliding rod (16) is slidably mounted on the inner side of the sliding groove (14), and the sliding rod (16) is fixedly mounted at the end portion of the elastic piece (15).

2. A safety lancet according to claim 1, wherein: the outer side wall of the shell (6) is sleeved with a rubber sleeve (4), and the side wall of the rubber sleeve (4) is provided with a plurality of annular grooves (5).

3. A safety lancet according to claim 1, wherein: the plastic pipe (17) penetrates through the middle part of the inner side of the movable plate (18) and is fixedly installed, and the outer side wall of the guide pipe (13) is adhered to the inner wall of the plastic pipe (17) through environment-friendly glue.

4. A safety lancet according to claim 1, wherein: the movable plate (18) is a circular plastic plate, and the edge of the movable plate (18) is set to be a smooth arc surface.

5. A safety lancet according to claim 1, wherein: the depth of the clamping groove (8) is larger than the length of the needle head (10), and the width of the clamping groove (8) is slightly larger than the width of the clamping block (9).

6. A safety lancet according to claim 1, wherein: four elastic sheets (15) are uniformly arranged on the lower portion of the inner side of the shell (6), and the elastic sheets (15) are bent stainless steel sheets.