CN213282948U

CN213282948U - Safety blood taking needle for children

Info

Publication number: CN213282948U
Application number: CN202020703551.5U
Authority: CN
Inventors: 杨冬梅; 魏莉; 何轶
Original assignee: Childrens Hospital of Chongqing Medical University
Current assignee: Childrens Hospital of Chongqing Medical University
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-05-28
Anticipated expiration: 2030-04-30

Abstract

The utility model belongs to the technical field of blood sampling for children, in particular to a safe blood taking needle for children, which comprises a blood taking needle body, wherein a steel needle is arranged at the front end of the blood taking needle body and penetrates into the blood taking needle body along the shaft part, a soft needle is sleeved outside the steel needle, one end of the soft needle is fixedly connected with the pipe orifice of the blood taking needle body, one end of the steel needle positioned inside the blood taking needle is fixedly connected with a sealing seat, a filling layer is arranged outside the sealing seat, the rear end of the blood taking needle is clamped with a connecting seat, the other end of the sealing seat is fixedly connected with the connecting seat, a needle holder is fixedly arranged at the upper end of the connecting seat, a partition plate is fixedly arranged inside the blood taking needle body, the steel needle penetrates through the partition plate, the defects of the prior art are overcome, the soft needle is sleeved outside the steel needle, the steel needle is taken out after the puncture is finished, the soft, the potential safety hazard is reduced, and the method is more reliable.

Description

Safety blood taking needle for children

Technical Field

The utility model belongs to the technical field of children's blood sampling, concretely relates to children use safe blood taking needle.

Background

The venous blood sampling is used as a means of clinical auxiliary examination, provides reliable basis for doctors to analyze the state of an illness and treat diseases, is a basic nursing skill, and has greater difficulty in pediatric blood sampling compared with adult blood sampling due to factors such as small age of a child patient, thin blood vessel, incompatibility and the like.

The blood taking needle that generally uses at present all is hard needle, and children select the jugular vein as the blood sampling position mostly at the blood sampling in-process, but because child is better moving at the blood sampling in-process, does not cooperate, appears passing the vascular condition very easily behind the syringe needle entering blood vessel of hard needle, causes the vascular swelling, and outside the syringe needle slips easily the blood vessel in addition, also stabbed child easily, stabbed medical personnel more easily, has great potential safety hazard, and serious can cause the medical accident.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a children use safe blood taking needle has overcome the not enough of prior art, establishes soft needle at the steel needle overcoat, takes out the steel needle after the puncture is accomplished, remains soft needle at intravascular, has avoided steel needle pipe to cross blood vessel or the vascular problem of roll-off, has reduced the potential safety hazard, and is more reliable.

In order to solve the above problems, the utility model adopts the following technical proposal:

a safety blood taking needle for children comprises a blood taking needle body, wherein a steel needle is arranged at the front end of the blood taking needle body and penetrates into the blood taking needle body along the shaft part, a soft needle is sleeved outside the steel needle, one end of the soft needle is fixedly connected with a pipe orifice of the blood taking needle body, one end of the steel needle, which is positioned inside the blood taking needle, is fixedly connected with a sealing seat, a filling layer is arranged outside the sealing seat, the rear end of the blood taking needle is connected with a connecting seat in a clamping manner, the other end of the sealing seat is fixedly connected with the connecting seat, and a needle holding handle is fixedly arranged at the upper end of the; a partition plate is fixedly arranged in the blood taking needle body, the steel needle penetrates through the partition plate, one side of the blood taking needle body is connected with a hose, the connecting end of the hose is positioned on one side, close to the hose, of the partition plate, the other end of the hose is connected with a connector, and a rubber sleeve for sealing is arranged on the outer side of the connector; the blood taking needle body is connected with the sealing plug on being close to the one end lateral wall of connecting seat, leave the clearance between the one end that the baffle was kept away from to the filling layer and the mouth of pipe of blood taking needle body, the protrusion end of sealing plug is filled in the clearance.

Furthermore, four groups of clamping blocks distributed in an array mode are fixedly arranged on the outer side of the sealing seat, the clamping blocks extend along the length direction of the sealing seat, clamping grooves matched with the clamping blocks are formed in the surface, close to the sealing seat, of one side of the filling layer, and the clamping blocks are inserted into the clamping grooves.

Furthermore, a sealing ring is arranged at the joint of the partition plate and the steel needle and is movably connected with the steel needle.

Further, the soft needle outside is provided with first sheath, the one end of first sheath cup joints in the mouth of pipe outside of blood taking needle body, the outside cover that connects is equipped with the second sheath, first sheath and second sheath are transparent material and make.

Further, the steel needle adopts the stainless steel to make, the filling layer is rigid plastic, the filling layer bonds on the inside wall of blood taking needle body.

Further, hold needle handle and connecting seat integrated into one piece, hold the needle handle and be unilateral butterfly form, the surface of holding the needle handle is provided with a plurality of skid-proof archs.

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

the soft needle is sleeved outside the steel needle, the steel needle and the soft needle are inserted into the blood vessel of a patient during blood sampling, and then the connecting seat is pulled out, so that the steel needle is pushed out, the soft needle is kept in the blood vessel, the problem that the steel needle tube passes through the blood vessel or slides out of the blood vessel is avoided, the potential safety hazard is reduced, and the blood sampling needle is more reliable; the stability and the sealing performance of the device are improved by arranging the partition plate, the filling layer, the clamping block, the clamping groove and the sealing plug; the transparent protective sleeve is sleeved outside the rubber sleeve, so that the rubber sleeve is prevented from being polluted, and the accuracy of blood examination is improved.

Drawings

Fig. 1 is a schematic view of a safety lancet for children.

FIG. 2 is a schematic view showing an inner structure of a lancet body in a safety lancet for children.

Fig. 3 is a schematic structural view of a sealing seat in a safety lancet for children.

In the figure: 1. a lancet body; 2. a soft needle; 3. a steel needle; 4. a first sheath; 5. a hose; 6. A joint; 7. a second sheath; 8. a needle holding handle; 9. a connecting seat; 10. a sealing plug; 11. a sealing seat; 12. a partition plate; 13. a seal ring; 14. a filling layer; 15. a clamping block; 16. a clamping groove.

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.

As shown in fig. 1-3, a safety blood taking needle for children, which comprises a blood taking needle body 1, wherein a steel needle 3 is arranged at the front end of the blood taking needle body 1, the steel needle 3 penetrates into the blood taking needle body 1 along the shaft part, a soft needle 2 is sleeved outside the steel needle 3, one end of the soft needle 2 is fixedly connected with a tube opening of the blood taking needle body 1, one end of the steel needle 3, which is positioned inside the blood taking needle, is fixedly connected with a sealing seat 11, a filling layer 14 is arranged outside the sealing seat 11, the rear end of the blood taking needle is clamped with a connecting seat 9, the other end of the sealing seat 11 is fixedly connected with the connecting seat 9, and a needle holding handle 8 is fixedly; a partition plate 12 is fixedly arranged in the blood taking needle body 1, the steel needle 3 penetrates through the partition plate 12, one side of the blood taking needle body 1 is connected with a hose 5, the connecting end of the hose 5 is positioned on one side, close to the hose 5, of the partition plate 12, the other end of the hose 5 is connected with a connector 6, and the outer side of the connector 6 is provided with a rubber sleeve for sealing; the sealing plug 10 is connected to the side wall of one end of the blood taking needle body 1 close to the connecting seat 9, a gap is reserved between one end of the filling layer 14 far away from the partition plate 12 and the pipe opening of the blood taking needle body 1, and the protruding end of the sealing plug 10 is filled in the gap.

Four groups of clamping blocks 15 distributed in an array mode are fixedly arranged on the outer side of the sealing seat 11, the clamping blocks 15 extend along the length direction of the sealing seat 11, clamping grooves 16 matched with the clamping blocks 15 are formed in the surface, close to the sealing seat 11, of the filling layer 14, the clamping blocks 15 are inserted into the clamping grooves 16, stability of the steel needle 3 during withdrawal is improved, and deviation is avoided; a sealing ring 13 is arranged at the joint of the partition plate 12 and the steel needle 3, and the sealing ring 13 is movably connected with the steel needle 3, so that the sealing property of the device is improved; a first sheath 4 is arranged on the outer side of the soft needle 2, one end of the first sheath 4 is sleeved on the outer side of the tube opening of the blood taking needle body 1, a second sheath 7 is sleeved on the outer side of the joint 6, the second sheath 7 is positioned outside the rubber sleeve, and the first sheath 4 and the second sheath 7 are made of transparent materials, so that the safety of the blood taking needle is improved; the steel needle 3 is made of stainless steel, the filling layer 14 is made of hard plastic, and the filling layer 14 is adhered to the inner side wall of the blood taking needle body 1; the needle holding handle 8 and the connecting seat 9 are integrally formed, the needle holding handle 8 is in a unilateral butterfly shape, and a plurality of anti-skidding bulges are arranged on the surface of the needle holding handle 8, so that the needle holder is convenient to use.

To sum up, a children use safe blood taking needle, during the use, select to carry out the blood vessel of blood sampling to patient, disinfect patient's blood sampling position to prick the tourniquet in disinfection scope top. Preparing a plurality of blood-taking indwelling needles, adhesive tapes, vacuum blood-taking tubes and other blood-taking tools; removing the first sheath 4, holding the needle handle 8 with a hand, tightly pulling the skin of a patient, directly puncturing the vein with the steel needle 3, slowly inserting the needle between the steel needle 3 and the skin at an angle of 25 degrees, inserting the needle 0.2cm after blood return, and enabling the soft needle 2 to enter the blood vessel of the patient along with the steel needle 3; holding the outer side of the blood taking needle body 1 by one hand, holding the needle handle 8 by the other hand, pulling outwards slightly to separate the connecting seat 9 from the blood taking tube body, continuing pulling outwards to move the sealing seat 11 outwards, gradually separating the clamping block 15 from the clamping groove 16 until the steel needle 3 is withdrawn from the blood vessel of the patient, and discarding the steel needle 3 assembly; then the sealing plug 10 is used for sealing the opening of the blood collection tube body; fixing the blood collection tube body on the body of the puncture part of the patient by using an adhesive tape, and taking down the tourniquet; a blood collection step: the second sheath 7 is removed, and when blood flows to the joint 6, the joint 6 is inserted into a vacuum blood collection tube for blood collection, so that air can be prevented from entering the vacuum blood collection tube until blood collection is completed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A safety blood taking needle for children comprises a blood taking needle body (1), and is characterized in that: the blood taking needle is characterized in that a steel needle (3) is arranged at the front end of the blood taking needle body (1), the steel needle (3) penetrates into the blood taking needle body (1) along the shaft part, a soft needle (2) is sleeved on the outer side of the steel needle (3), one end of the soft needle (2) is fixedly connected with a pipe orifice of the blood taking needle body (1), one end, located inside the blood taking needle, of the steel needle (3) is fixedly connected with a sealing seat (11), a filling layer (14) is arranged on the outer side of the sealing seat (11), the rear end of the blood taking needle is connected with a connecting seat (9) in a clamping mode, the other end of the sealing seat (11) is fixedly connected with the connecting seat (9), and a needle holding handle (8; a partition plate (12) is fixedly arranged in the blood taking needle body (1), the steel needle (3) penetrates through the partition plate (12), one side of the blood taking needle body (1) is connected with a hose (5), the connecting end of the hose (5) is positioned on one side, close to the hose (5), of the partition plate (12), the other end of the hose (5) is connected with a connector (6), and a rubber sleeve for sealing is arranged on the outer side of the connector (6); the blood taking needle is characterized in that a sealing plug (10) is connected to one end side wall, close to the connecting seat (9), of the blood taking needle body (1), a gap is reserved between one end, far away from the partition plate (12), of the filling layer (14) and the pipe opening of the blood taking needle body (1), and the protruding end of the sealing plug (10) is filled in the gap.

2. A child safety lancet according to claim 1, wherein: four groups of clamping blocks (15) distributed in an array mode are fixedly arranged on the outer side of the sealing seat (11), the clamping blocks (15) extend along the length direction of the sealing seat (11), a clamping groove (16) matched with the clamping blocks (15) is formed in the surface, close to the sealing seat (11), of one side of the filling layer (14), and the clamping blocks (15) are inserted into the clamping groove (16).

3. A child safety lancet according to claim 1, wherein: and a sealing ring (13) is arranged at the joint of the partition plate (12) and the steel needle (3), and the sealing ring (13) is movably connected with the steel needle (3).

4. A child safety lancet according to claim 1, wherein: the soft needle (2) outside is provided with first sheath (4), the mouth of pipe outside at blood taking needle body (1) is cup jointed to the one end of first sheath (4), the outside cover that connects (6) is equipped with second sheath (7), first sheath (4) and second sheath (7) are transparent material and make.

5. A child safety lancet according to claim 1, wherein: the blood taking needle is characterized in that the steel needle (3) is made of stainless steel, the filling layer (14) is made of hard plastic, and the filling layer (14) is bonded on the inner side wall of the blood taking needle body (1).

6. A child safety lancet according to claim 1, wherein: hold needle handle (8) and connecting seat (9) integrated into one piece, hold needle handle (8) and be unilateral butterfly form, the surface of holding needle handle (8) is provided with a plurality of skid-proof archs.