CN216933287U

CN216933287U - Puncture sampling needle

Info

Publication number: CN216933287U
Application number: CN202220130559.6U
Authority: CN
Inventors: 刘长军; 刘中群; 钟龙生
Original assignee: Zhongke Kangsenruite Technology Huizhou Co ltd
Current assignee: Zhongke Kangsenruite Technology Huizhou Co ltd
Priority date: 2022-01-18
Filing date: 2022-01-18
Publication date: 2022-07-12
Anticipated expiration: 2032-01-18

Abstract

The utility model discloses a puncture sampling needle, which comprises a first tube body, a sampling needle and a piston rod, wherein the sampling needle is arranged in the first tube body; a second pipe body is arranged in the middle of the first pipe body, and more than one first injection port is arranged on the outer side of one end of the second pipe body; the utility model respectively arranges more than one first transfusion hole outside one end of a second tube, installs a sampling needle in the second tube, arranges more than one second transfusion hole opposite to the first transfusion hole outside, pulls an annular rubber plug upwards, blood systems enter the first tube through the second transfusion hole and the first transfusion hole in sequence, arranges more than one sliding block outside the sampling needle, arranges more than one sliding groove on the surface of a piston rod, arranges the sliding block in the sliding groove and protrudes outwards, and pulls the sliding block upwards, so that the sampling needle is lifted upwards to be accommodated in the second tube, and the second transfusion hole and the first transfusion hole are sealed in a staggered way, thereby sealing and storing the blood in the first tube and ensuring the detection requirement of the blood.

Description

Puncture sampling needle

Technical Field

The utility model relates to a medical instrument, in particular to a puncture sampling needle.

Background

A common medical blood sampling needle comprises a tube body, a tube head and a puncture needle fixedly connected with the tube head through threads. Such prior art medical blood sampling needles are typically used as such; firstly, after a blood sample is collected, medical staff directly insert a puncture needle into a light blue rubber plug and send the light blue rubber plug to a laboratory for inspection; before the examination, the examination personnel unscrew the puncture needle from the tube head; secondly, medical staff directly unscrew the puncture needle from the tube head, then seal the tube head with a green cover, and then send the tube head to a laboratory for inspection. The two using modes have the same problem basically, and the blood sampling process is not closed, so that the sampled specimen is unqualified; when the puncture needle is taken down from the tube head, the blood is leaked out and does not meet the prevention and control requirements; especially, in the process of transferring, handing-over and checking the specimen, the puncture needle may stab medical staff, and the safety is poor.

Disclosure of Invention

The technical problem to be solved by the present invention is to provide a puncture sampling needle to solve the technical problems mentioned in the background art.

The puncture sampling needle is realized by the following technical scheme: comprises a first tube body, a sampling needle and a piston rod; the second body is arranged in the middle in the first body, more than one first infusion port is arranged on the outer side of one end of the second body, the sampling needle is arranged in the second body, and more than one second infusion port opposite to the first infusion port is arranged on the outer side of the sampling needle.

As the preferred technical scheme, two opposite sides of the piston rod are respectively provided with a pushing holding block, and the other end of the piston rod is provided with an annular rubber plug; the piston rod is tubular; piston rod and annular rubber buffer are all installed in the second body outside, and annular rubber buffer and first defeated notes mouth set up relatively.

As a preferred technical scheme, one end of the sampling needle and one end of the piston rod both extend to the outer side of the first tube body, and the outer side of the end is respectively provided with more than one sliding block; the end surface of the other end of the sampling needle is arranged in an inclined plane, and the end surface is provided with a round hole; the other end of the round hole is connected with the second infusion port in a conduction way;

the surface of the piston rod is provided with more than one sliding groove, and the sliding block is arranged in the sliding groove and protrudes outwards.

As a preferred technical scheme, the surface of the first pipe body is provided with a position avoiding hole, and the position avoiding hole is in conduction connection with the second pipe body; the sampling needle is arranged opposite to the avoiding hole; and a sealing ring is embedded in the inner side surface of the avoiding hole.

As preferred technical scheme, first body inner wall is provided with the gag lever post more than one, and the ring rubber buffer inboard is provided with the spacing groove, and the spacing groove is installed with the gag lever post relatively.

The utility model has the beneficial effects that:

1. the sampling needle is installed in the second tube body, more than one second infusion port opposite to the first infusion port is arranged on the outer side of one end of the second tube body, the annular rubber plug is lifted upwards, a blood system enters the first tube body through the second infusion port and the first infusion port sequentially, more than one sliding block is arranged on the outer side of the sampling needle, more than one sliding groove is arranged on the surface of the piston rod, the sliding block is arranged in the sliding groove and protrudes outwards, the sampling needle is lifted upwards to be accommodated in the second tube body through the sliding block lifted upwards, meanwhile, the second infusion port and the first infusion port are sealed in a staggered mode, blood in the first tube body is stored in a sealed mode, and the detection requirement of the blood is met.

2. Through set up the gag lever post more than one at first body inner wall, the ring rubber stopper inboard sets up the spacing groove, and the spacing groove is installed with the gag lever post relatively, guarantees that second infusion mouth and first infusion mouth are relative all the time, prevents when using, and second infusion mouth and first infusion mouth dislocation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a piercing sampling needle according to the present invention;

FIG. 2 is a schematic view of a sampling needle;

fig. 3 is a schematic view of the piston rod.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

As shown in fig. 1-3, a puncture sampling needle of the present invention comprises a first tube 2, a sampling needle 10 and a piston rod 4; the second tube body 5 is arranged in the first tube body 2 in the middle, more than one first infusion port 3 is arranged on the outer side of one end of the second tube body 5, the sampling needle 10 is arranged in the second tube body 5, and more than one second infusion port 12 opposite to the first infusion port 3 is arranged on the outer side.

In the embodiment, two opposite sides of the piston rod 4 are respectively provided with a pushing holding block 7, and the other end is provided with an annular rubber plug 1; the piston rod 4 is tubular; piston rod 4 all installs in the 5 outsides of second body with annular rubber buffer 1, and annular rubber buffer 1 sets up with first infusion mouth 3 relatively.

In this embodiment, the sampling needle 10 and one end of the piston rod 4 both extend to the outside of the first tube 2, and the outside of the end is provided with more than one sliding block 9; the end surface of the other end of the sampling needle 10 is arranged in an inclined plane 14, and the end surface is provided with a round hole 13; the other end of the round hole 13 is connected with the second injection port 12 in a conduction way; the surface of the piston rod 4 is provided with more than one sliding groove 6, and the sliding block 9 is arranged in the sliding groove 6 and protrudes outwards.

In this embodiment, the first tube 2 has a clearance hole 16 on the surface thereof, and the clearance hole 16 is connected to the second tube 5; the sampling needle 10 is arranged opposite to the avoiding hole 16; and a sealing ring 19 is embedded in the inner side surface of the avoiding hole 16, so that the sealing property is improved.

In this embodiment, the inner wall of the first pipe body 2 is provided with more than one limiting rod 20, the inner side of the annular rubber plug 1 is provided with a limiting groove 21, and the limiting groove 21 and the limiting rod 20 are installed relatively.

The working process is as follows: medical personnel insert patient's skin with the inclined plane of sampling needle to lifting upwards promotes and holds the piece, and blood flows through second infusion mouth and first infusion mouth in proper order, and in flowing into first pipe body, upwards lifting draws the slider, and the sampling needle upwards mentions accomodate with the second pipe body in, and second infusion mouth and first infusion mouth dislocation are sealed simultaneously, preserve the blood seal in the first pipe body, guarantee the detection requirement of blood.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. A puncture sampling needle is characterized in that: comprises a first tube body (2), a sampling needle (10) and a piston rod (4); the sampling needle is characterized in that a second pipe body (5) is arranged in the first pipe body (2) in the middle, more than one first injection port (3) is arranged on the outer side of one end of the second pipe body (5), the sampling needle (10) is installed in the second pipe body (5), and more than one second injection port (12) opposite to the first injection port (3) in position is arranged on the outer side.

2. The puncture sampling needle according to claim 1, characterized in that: the two opposite sides of the piston rod (4) are respectively provided with a pushing holding block (7), and the other end is provided with an annular rubber plug (1); the piston rod (4) is tubular; piston rod (4) and annular rubber buffer (1) are all installed in second body (5) outside, and annular rubber buffer (1) sets up with first defeated notes mouth (3) relatively.

3. The puncture sampling needle according to claim 1, characterized in that: one end of the sampling needle (10) and one end of the piston rod (4) both extend to the outer side of the first tube body (2), and the outer side of the end is respectively provided with more than one sliding block (9); the end surface of the other end of the sampling needle (10) is arranged in an inclined plane (14), and the end surface is provided with a round hole (13); the other end of the round hole (13) is communicated with the second infusion port (12);

more than one sliding groove (6) is formed in the surface of the piston rod (4), and the sliding block (9) is arranged in the sliding groove (6) and protrudes outwards.

4. The puncture sampling needle according to claim 1, characterized in that: the surface of the first pipe body (2) is provided with a position avoiding hole (16), and the position avoiding hole (16) is communicated and connected with the second pipe body (5); the sampling needle (10) is arranged opposite to the position avoiding hole (16); and a sealing ring (19) is embedded in the inner side surface of the avoiding hole (16).

5. The puncture sampling needle according to claim 1, characterized in that: more than one limiting rod (20) is arranged on the inner wall of the first pipe body (2), a limiting groove (21) is formed in the inner side of the annular rubber plug (1), and the limiting groove (21) and the limiting rod (20) are installed oppositely.