CN214804924U

CN214804924U - Hematology specialty bone marrow puncture device

Info

Publication number: CN214804924U
Application number: CN202120252975.9U
Authority: CN
Inventors: 吕征宇
Original assignee: Chengdu Sixth People's Hospital
Current assignee: Chengdu Sixth People's Hospital
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2021-11-23
Anticipated expiration: 2031-01-29

Abstract

The utility model discloses a hematology department bone marrow puncture device, include: the blood collection device comprises a vacuum blood collection tube, a needle handle, a needle head and a needle core, wherein the needle head is connected to the bottom end of the needle handle, the needle handle is a hollow cylinder, the needle core is arranged in the needle head, one end of the needle core is connected with a puncturing head, the puncturing head is fixedly connected to a movable disc, and the movable disc is movably arranged in the needle handle; the syringe needle bottom side sets up first side opening, nook closing member bottom side sets up the second side opening, and under natural state, the second side opening is located the top of first side opening top place face. The utility model discloses when puncturing, through pressing the vacuum test tube, utilize the negative pressure effect of vacuum test tube to inhale the blood test tube with marrow liquid from the stylet internal system automatically, the blood test tube can preserve the certain time to marrow liquid, and in the sample process, the stylet is not taken out, arranges inside in, also need not to put back once more, has both reduced the operation, has also avoided the stylet to expose the problem of putting back the bacterial contamination who causes again.

Description

Hematology specialty bone marrow puncture device

Technical Field

The utility model relates to a bone marrow puncture related technical field specifically is a hematology department bone marrow puncture device.

Background

The marrow puncture is to penetrate into marrow cavity through puncture needle and to extract certain marrow liquid sample for examination, and has important significance in diagnosis and identification of blood diseases.

At present, the bone marrow puncture is mainly realized through a bone marrow puncture needle, the bone marrow puncture needle generally comprises a needle head, a needle handle and a needle core, the bone marrow is punctured through the needle head, the needle core is taken out after the puncture, and then liquid pumping devices such as a liquid pumping device and the like are connected with the needle head to perform liquid pumping and sampling. Because the needle core needs to be taken out and exposed for a period of time, the needle head is inserted and placed back after the extraction is finished, the injury to a patient is easily caused by the problems of bacterial pollution of the needle core and the like, and the smear is directly prepared after the sampling of the bone marrow liquid at present, and the bone marrow liquid can not be stored for a period of time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hematology department bone marrow puncture device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a hematology bone marrow puncture device comprising: the blood collection device comprises a vacuum blood collection tube, a needle handle, a needle head and a needle core, wherein the needle head is connected to the bottom end of the needle handle, the needle handle is a hollow cylinder, the needle core is arranged in the needle head, one end of the needle core is connected with a puncturing head, the puncturing head is fixedly connected to a movable disc, and the movable disc is movably arranged in the needle handle; the syringe needle bottom side sets up first side opening, nook closing member bottom side sets up the second side opening, and under natural state, the second side opening is located the top of first side opening top place face.

As a further aspect of the present invention: the upper side of the movable disc is provided with a clamping ring, and the clamping ring is in threaded connection with the inner wall of the needle handle.

As a further aspect of the present invention: and a pressure spring is arranged on the lower side of the movable disc.

As a further aspect of the present invention: the bottom end of the needle core is positioned below the surface of the bottom end of the first side hole.

As a further aspect of the present invention: the needle head is detachably connected with the needle handle.

As a further aspect of the present invention: and a scale ring is arranged on the outer side of the needle head.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses when puncturing, the nook closing plug is with first side hole shutoff, first side hole can avoid patient's skin when the syringe needle puncture, muscle tissue causes the injury and takes blood, the tissue, after first side hole punctures into marrow cavity, put into the needle handle with vacuum test tube stopcock down in, and press vacuum test tube, make puncture head puncture in vacuum test tube, press the movable disk to remove simultaneously, make the nook closing plug remove, second side hole remove to with first side hole coincidence after can, utilize vacuum test tube's negative pressure effect automatic with marrow liquid from the needle core internal suction to test tube in, test tube can preserve the dead time to marrow liquid, test tube extracts the back, the nook closing plug under the effect of pressure spring, first side hole shutoff. In the process, the needle core is not taken out and placed in the needle core, and the needle core does not need to be placed back again, so that the operation is reduced, and the problem of bacterial pollution caused by the fact that the needle core is exposed and then placed back is solved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the cross-sectional structure of the middle needle handle of the present invention.

Fig. 3 is a schematic sectional view of the needle of the present invention.

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.

Referring to fig. 1 to 3, in an embodiment of the present invention, a bone marrow puncture device for hematology department includes: the vacuum blood collection tube comprises a vacuum blood collection tube 1, a needle handle 2, a needle head 3 and a needle core 4, wherein the needle head 3 is detachably connected to the bottom end of the needle handle 2, the needle handle 2 is a hollow cylinder, the needle core 4 is arranged inside the needle head 3, one end of the needle core 4 is connected with a puncturing head 41, the puncturing head 41 is fixedly connected to a movable disc 42, the movable disc 42 is movably arranged in the needle handle 2, a clamping ring 21 is arranged on the upper side of the movable disc 42, the clamping ring 21 is in threaded connection with the inner wall of the needle handle 2, and a pressure spring 5 is arranged on the lower side of the movable disc 42;

the side surface of the bottom end of the needle head 3 is provided with a first side hole 31, the side surface of the bottom end of the needle core 4 is provided with a second side hole 43, the bottom end of the needle core 4 is positioned below the surface of the bottom end of the first side hole 31, when puncture is carried out, the needle core 4 seals the first side hole 31, the first side hole 31 can avoid hurting the skin and muscle tissues of a patient and bring blood and tissues when the needle head 3 punctures, after the puncture is carried out in the marrow cavity by the first side hole 31 judged through scales arranged at the outer side of the needle head 3, the tube plug of the vacuum blood collection tube 1 is downwards placed in the needle handle 2, the vacuum blood collection tube 1 is pressed, the puncture head 41 punctures into the vacuum blood collection tube 1, the movable disc 42 is pressed to move at the same time, the needle core 4 moves, after the second side hole 43 moves to coincide with the first side hole 31, the bone marrow liquid is automatically sucked into the blood collection tube from the needle core 4 by the negative pressure action of the vacuum blood collection tube 1, the blood collection tube can store the bone marrow liquid for a certain time, after the blood collection tube is pulled out, the needle core 4 returns under the action of the pressure spring 5, and the first side hole 31 is sealed.

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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A hematology bone marrow puncture device comprising: vacuum test tube (1), needle handle (2), syringe needle (3) and nook closing member (4), syringe needle (3) are connected in needle handle (2) bottom, its characterized in that: the needle handle (2) is a hollow cylinder, a needle core (4) is arranged in the needle head (3), one end of the needle core (4) is connected with a puncturing head (41), the puncturing head (41) is fixedly connected to a movable disc (42), and the movable disc (42) is movably arranged in the needle handle (2); the side of the bottom end of the needle head (3) is provided with a first side hole (31), the side of the bottom end of the needle core (4) is provided with a second side hole (43), and the second side hole (43) is positioned above the top end of the first side hole (31) in a natural state.

2. The hematology bone marrow puncture device according to claim 1, characterized in that: the upper side of the movable disc (42) is provided with a clamping ring (21), and the clamping ring (21) is in threaded connection with the inner wall of the needle handle (2).

3. A hematology bone marrow puncture device according to claim 2, characterized in that: and a pressure spring (5) is arranged on the lower side of the movable disc (42).

4. The hematology bone marrow puncture device according to claim 1, characterized in that: the bottom end of the stylet (4) is positioned below the surface of the bottom end of the first side hole (31).

5. The hematology bone marrow puncture device according to claim 1, characterized in that: the needle head (3) is detachably connected with the needle handle (2).

6. The hematology bone marrow puncture device according to claim 1, characterized in that: and a scale ring is arranged on the outer side of the needle head (3).