CN209932820U

CN209932820U - Disposable pediatric sternal puncture needle

Info

Publication number: CN209932820U
Application number: CN201821357994.2U
Authority: CN
Inventors: 黄体龙; 张娴文
Original assignee: Kunming Childrens Hospital
Current assignee: Kunming Childrens Hospital
Priority date: 2018-08-22
Filing date: 2018-08-22
Publication date: 2020-01-14
Anticipated expiration: 2028-08-22

Abstract

The utility model relates to a disposable paediatrics sternum pjncture needle relates to the medical equipment field. The sternum puncture needle comprises a hose, a needle head arranged at one end of the hose, a connector arranged at the other end of the hose, a needle core penetrating through the needle head, the hose and the connector, a needle core handle arranged at one end of the needle core, and a limiting clamp arranged on the needle head and moving along the length direction of the needle head. The utility model discloses simple structure has rational in infrastructure, length is suitable, convenient to use, wound are little, the difficult jam of nook closing member, security advantage such as high.

Description

Disposable pediatric sternal puncture needle

Technical Field

The utility model relates to a breastbone puncture needle, in particular to a disposable pediatric breastbone puncture needle, which belongs to the field of medical appliances.

Background

Bone marrow aspiration is a common diagnostic technique using bone marrow fluid and is widely used in clinical practice. Has a great significance in the diagnosis of certain diseases. The sternum bone marrow has active hyperplasia, the hyperplasia degree is better than that of the ilium, the spinous process and the tibia, and the bone marrow has good components of extracted liquid, which is the best puncture part. The clinically used children's sternum puncture needle has thick and long needle head, difficult control of force application and puncture depth, and thin sternum, and is easy to be inserted into the mediastinum and heart by mistake. Especially for the sick children who are not matched, the needle head is easy to break, and the sick children suffer great pain.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects of the prior art, the utility model provides a disposable pediatric sternal puncture needle which can control the depth of the needle insertion when carrying out sternal puncture for children, and can avoid the blockage of the needle head and has high safety. The technical scheme of the utility model is specifically as follows:

a disposable pediatric sternal puncture needle is characterized in that: the flexible pipe comprises a flexible pipe, a needle head arranged at one end of the flexible pipe, a connector arranged at the other end of the flexible pipe, a needle core penetrating through the needle head, the flexible pipe and the connector, a needle core handle arranged at one end of the needle core, and a limiting clamp arranged on the needle head and moving along the length direction of the needle head. The needle core is arranged in the needle head, and the purpose is to prevent the needle head from being blocked by soft tissues or bone fragments when penetrating into the sternum, so that the bone marrow can not be extracted. The tail part of the needle core is provided with a handle, so that the needle is convenient to pull.

Furthermore, the limiting clamp comprises a clamp body and positioning bolts arranged on two sides of the clamp body, the clamp body is arranged in sliding grooves on two sides of the needle head through the positioning bolts and moves along the sliding grooves, the puncture depth is controlled, and the injury to blood vessels or heart behind the sternum is avoided.

Furthermore, the needle head is a No. 7 or No. 9 needle head, so that the injury is small, the puncture force is small, and the blood seepage is less after the needle is pulled out.

Further, the needle is about 1.5cm long to prevent bone marrow dilution from occurring.

Further, the hose length is about 6 cm.

Further, the interface may be connectable with a syringe nozzle. The needle core can be connected with the injector nozzle after being pulled out, so that the bone marrow can be conveniently pumped.

Furthermore, a needle handle is arranged at one end of the hose close to the needle head, and a handle is arranged at one end close to the interface.

Furthermore, the needle head is also provided with scales.

Compared with the prior art, the utility model has the advantages of be:

1. the operation is simple and convenient, the needle core can prevent the needle head from being blocked by soft tissues or bone fragments, and the puncture success rate is improved.

2. The needle head is provided with a limiting clamp, can be adjusted, can control the depth of puncture, avoids damaging blood vessels or the heart behind the sternum, and is safe and reliable. Reasonable structure, proper length, controllable needle insertion depth, difficult blockage, high safety, convenient use and the like.

Drawings

Fig. 1 is a schematic structural view of the present invention;

wherein: 1-needle head, 2-soft tube, 3-needle core, 4-limit clamp, 4.1-clamp, 4.2-positioning bolt, 4.3-chute, 5-needle handle, 6-handle, 7-needle core handle and 8-interface.

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 examples of the present invention, not all examples. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

Example 1

As shown in fig. 1, the disposable pediatric sternal puncture needle of the present embodiment includes a flexible tube 2, a needle head 1 disposed at one end of the flexible tube 2, a hub 8 disposed at the other end of the flexible tube 2, a stylet 3 penetrating through the flexible tube 1, the flexible tube 2 and the hub 8, a stylet handle 7 disposed at one end of the stylet 3, and a limiting clip 4 disposed on the needle head 1 and moving along the length direction of the needle head 1. The end of the hose 2 close to the needle 1 is provided with a needle handle 5, and the end close to the interface 8 is provided with a handle 6.

The limiting clamp 4 comprises a clamp body 4.1 and positioning bolts 4.2 arranged on two sides of the clamp body 4.1, the clamp body 4.1 is arranged in sliding grooves 4.3 on two sides of the needle head 1 through the positioning bolts 4.2, the clamp body 4.1 moves along the sliding grooves 4.3, the needle insertion depth can be controlled according to the specific situation of a patient, the puncture depth is further controlled, and the injury to blood vessels or heart behind the sternum is avoided. Preferably, the needle head is further provided with scales, so that the limiting clamp can be conveniently adjusted.

Preferably, the needle 1 is a 7-or 9-gauge needle, which has small injury, small puncture force, and little blood leakage after needle withdrawal. The needle length was 1.5cm to prevent bone marrow dilution.

The hose length is 6 cm. After the needle core 3 is pulled out, the interface 8 can be connected with the injector nozzle, which is convenient for extracting marrow.

When the bone marrow sternal puncture needle is used, the limiting clamp 4 is adjusted to master the puncture depth, the needle handle 5 is held by hand, the No. 7 or No. 9 needle head 1 is inserted into the sternum of a patient, the needle core 3 is pulled out, the insertion nozzle of a 10 ml syringe is aligned to the interface 8, the sternum bone marrow is extracted, and then the sternum bone marrow is sent to assay.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A disposable pediatric sternal puncture needle is characterized in that: the flexible pipe comprises a flexible pipe, a needle head arranged at one end of the flexible pipe, a connector arranged at the other end of the flexible pipe, a needle core penetrating through the needle head, the flexible pipe and the connector, a needle core handle arranged at one end of the needle core, and a limiting clamp arranged on the needle head and moving along the length direction of the needle head.

2. The disposable pediatric sternal puncture needle of claim 1, wherein: the limiting clamp comprises a clamp body and positioning bolts arranged on two sides of the clamp body, and the clamp body is arranged in sliding grooves in two sides of the needle head through the positioning bolts and moves along the sliding grooves.

3. The disposable pediatric sternal puncture needle of claim 1, wherein: the needle is a 7-gauge or 9-gauge needle.

4. The disposable pediatric sternal puncture needle of claim 3, wherein: the length of the needle head is about 1.5 cm.

5. The disposable pediatric sternal puncture needle of claim 1, wherein: the hose is about 6cm long.

6. The disposable pediatric sternal puncture needle of claim 1, wherein: the interface is connectable with a syringe nozzle.

7. The disposable pediatric sternal puncture needle of claim 1, wherein: the hose is provided with a needle handle at one end close to the needle head and a handle at one end close to the interface.

8. The disposable pediatric sternal puncture needle of claim 1, wherein: the needle head is also provided with scales.