CN219878192U - Bone marrow puncture needle - Google Patents

Abstract

The utility model discloses a bone marrow puncture needle, which comprises a handle, wherein the inside of the handle is fixedly connected with a bone puncture needle, the outer surface of the bone puncture needle is fixedly connected with external threads, the outer surface of the external threads is in threaded connection with a fixing ring, the outer surface of the fixing ring is rotationally connected with a fixing block, the outer surface of the fixing block is fixedly connected with a connecting block, the inside of the connecting block is rotationally connected with a supporting rod, the outside of the supporting rod is provided with an adjusting mechanism, the inside of the adjusting mechanism is provided with a moving rod, the outer surface of the moving rod is fixedly connected with a circular plate, the utility model relates to the technical field of puncture needles, the circular plate can provide auxiliary support through the cooperation among the circular plate, the adjusting mechanism can adjust the length between the circular plate and the fixing block, and the fixing block can support the circular plate, so that the bone marrow puncture needle is convenient to use and easy to shake when not in auxiliary support.

Description

Bone marrow puncture needle

Technical Field

The utility model relates to the technical field of puncture needles, in particular to a bone marrow puncture needle.

Background

Bone marrow puncture refers to a technology for collecting bone marrow fluid in a patient, and blood diseases can be diagnosed, identified and treated by analyzing the collected bone marrow fluid, so that the operation method is very simple.

The bone puncture needle is required to be used in the bone marrow fluid collecting process, the bone puncture needle is used for puncturing collecting parts such as sternum of a patient and then sucking a small amount of bone marrow fluid, a medical staff is required to hold the bone puncture needle by one hand for operation, the other hand is required to tighten the skin of the patient, the medical staff is required to rotate the bone puncture needle left and right for puncturing collecting the collecting parts of the patient when the bone puncture needle is used, because the outside of the bone puncture needle is not provided with an auxiliary structure, the bone puncture needle can not be used for borrowing force from the outside, and sometimes the bone puncture needle is hard to shake easily, so that a break is enlarged, and therefore, the bone marrow puncture needle supported by the auxiliary is required to be used.

Disclosure of Invention

First) solving the technical problems

The utility model aims to make up the defects of the prior art and provides a bone marrow puncture needle.

Two) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a bone marrow puncture needle, includes the handle, the inside fixedly connected with bone puncture needle of handle, the surface fixedly connected with external screw thread of bone puncture needle, the surface threaded connection of external screw thread has solid fixed ring, gu fixed ring's surface rotates and is connected with the fixed block, gu fixed block's surface fixedly connected with connecting block, the inside of connecting block rotates and is connected with the bracing piece, the externally mounted of bracing piece has adjustment mechanism, adjustment mechanism's internally mounted has the movable rod, the surface fixedly connected with circular plate of movable rod.

Further, the inside of the bone puncture needle is connected with a needle core in a sliding way, and the outer surface of the needle core is connected with the inside of the handle in a sliding way.

Further, the adjusting mechanism comprises a sleeve, and the inside of the sleeve is fixedly connected with the outer surface of the supporting rod.

Further, the inside threaded connection of telescopic has the gag lever post, the inside of movable rod is opened there is the spacing hole.

Further, the outer surface of the limiting rod is in sliding connection with the inside of the limiting hole, and the outer surface of the moving rod is in sliding connection with the inside of the sleeve.

Further, the surface fixedly connected with rotor plate of fixed block, the surface threaded connection of external screw thread has the spacing ring, the surface threaded connection of external screw thread has a spacing section of thick bamboo.

Further, the outer surface of the limiting ring is in sliding connection with the outer surface of the fixed block, and the outer surface of the limiting cylinder is in sliding connection with the outer surface of the limiting ring.

Third) beneficial effects

Compared with the prior art, the bone marrow puncture needle has the following beneficial effects:

according to the utility model, through the cooperation between the circular plate, the adjusting mechanism and the fixing block, firstly, the circular plate can provide auxiliary support, when in puncture, the circular plate can be propped against the finger of a medical staff without holding the bone puncture needle, the auxiliary support can be provided for the medical staff, the stability of the bone puncture needle used by the medical staff and the support for the puncture of the puncture needle are conveniently ensured, the adjusting mechanism can adjust the length between the circular plate and the fixing block, the medical staff can adjust the position of the circular plate according to the situation, the fixing block can support the circular plate, the fixing block can rotate outside the fixing ring, the fixing block can support the circular plate when the bone puncture needle is rotated, at the moment, the fixing block can not prevent the rotation of the bone puncture needle, the bone puncture needle is convenient to use, and the problem that the bone puncture needle is easy to shake when in use without auxiliary support is solved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the main components of the present utility model;

FIG. 3 is a schematic view of an adjustment mechanism according to the present utility model.

In the figure: 1. a handle; 2. a bone puncture needle; 3. an external thread; 4. a fixing ring; 5. a fixed block; 6. a connecting block; 7. a support rod; 8. an adjusting mechanism; 801. a sleeve; 802. a limit rod; 803. a limiting hole; 9. a moving rod; 10. a circular plate; 11. a needle core; 12. a rotating plate; 13. a limiting ring; 14. and a limiting cylinder.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-3, the present utility model provides a technical solution: the utility model provides a bone marrow pjncture needle, includes handle 1, the inside fixedly connected with bone puncture needle 2 of handle 1, and the medical personnel can hold on handle 1 when using bone puncture needle 2, then rotates bone puncture needle 2 and punctures and get the liquid, and the better messenger of medical personnel of being convenient for is forced, improves puncture speed and effect.

The outer surface fixedly connected with external screw thread 3 of the bone puncture needle 2, the outer surface threaded connection of external screw thread 3 has solid fixed ring 4, and gu fixed ring 4's surface rotates and is connected with fixed block 5, and gu fixed ring 4's position can be adjusted, and fixed block 5 can rotate in gu fixed ring 4's outside when rotating handle 1.

The external surface fixedly connected with connecting block 6 of fixed block 5, the inside rotation of connecting block 6 is connected with bracing piece 7, the externally mounted of bracing piece 7 has adjustment mechanism 8, adjustment mechanism 8's internally mounted has movable rod 9, the external surface fixedly connected with circular plate 10 of movable rod 9, medical personnel can paste on patient's skin surface and tighten patient's skin when carrying out the puncture, can press circular plate 10 on medical personnel's two fingers this moment, circular plate 10 can carry out auxiliary stay to the bone puncture needle 2 through bracing piece 7 and movable rod 9 this moment, the stability of bone puncture needle 2 when improving medical personnel and carrying out the puncture, avoid bone puncture needle 2 to rock and cause patient's skin or sternum etc. position breach grow.

The adjustment mechanism 8 includes sleeve 801, and the inside of sleeve 801 and the surface fixed connection of bracing piece 7, adjustment mechanism 8 can be adjusted the length that movable rod 9 stretched out sleeve 801, and the length between the circular plate 10 and the fixed block 5 is adjusted according to the condition to medical personnel of being convenient for, satisfies the requirement that more medical personnel used.

The inside threaded connection of sleeve 801 has gag lever post 802, and open the inside of gag lever post 9 has spacing hole 803, and the surface of gag lever post 802 and the inside sliding connection of spacing hole 803, the surface of gag lever post 9 and the inside sliding connection of sleeve 801 can be adjusted the length that gag lever post 9 stretches out sleeve 801 through gag lever post 802 and spacing hole 803, and sleeve 801 can be connected bracing piece 7 and gag lever post 9, can adjust gag lever post 9 when gag lever post 802 breaks away from the contact with spacing hole 803.

The inside sliding connection of bone puncture needle 2 has needle core 11, and the surface of needle core 11 and the inside sliding connection of handle 1 need put into the inside of bone puncture needle 2 with needle core 11 in the in-process of puncture, can avoid blood or interstitial fluid to enter into the inside of bone puncture needle 2 during the puncture, can extract needle core 11 and gather when gathering the bone marrow liquid.

The surface fixedly connected with rotor plate 12 of fixed block 5 can adjust the position of solid fixed ring 4 through rotor plate 12, satisfies the requirement that more medical personnel used.

The outer surface threaded connection of external screw thread 3 has spacing ring 13, and the surface threaded connection of external screw thread 3 has spacing section of thick bamboo 14, and the surface of spacing ring 13 and the surface sliding connection of fixed block 5, the surface of spacing section of thick bamboo 14 and the surface sliding connection of spacing ring 13 can be adjusted spacing section of thick bamboo 14 according to patient's skin and tissue condition when carrying out the puncture to avoid the bone puncture needle 2 to pierce the part overlength in the patient.

Working principle: when the bone puncture needle 2 is used, firstly, the needle core 11 is inserted into the bone puncture needle 2, then the limiting rod 802 is rotated to adjust the length of the moving rod 9 extending out of the sleeve 801, after the length is adjusted, the limiting rod 802 is inserted into the limiting hole 803, at the moment, the position of the moving rod 9 is fixed and cannot move continuously, then the rotating plate 12 is rotated to adjust the position of the fixed block 5, after adjustment, a medical staff holds the bone puncture needle 2 by the other hand and pushes the circular plate 10 against the two hands of the skin of a patient, at the moment, the rotating handle 1 can puncture the bone puncture needle 2, the circular plate 10 can assist in supporting the bone puncture needle 2, the stability of the bone puncture needle 2 during puncture is improved, and the defect of the patient is avoided due to shaking of the bone puncture needle 2.

It should be noted that, in this document, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "fixedly attached," "mounted," "connected," and "coupled" are to be construed broadly, e.g., as a fixed connection, as a removable connection, or as an integral connection; "coupled" may be either mechanical or electrical; the "connection" may be direct, indirect via an intermediary, or communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A bone marrow puncture needle, comprising a handle (1), characterized in that: the inside fixedly connected with bone puncture needle (2) of handle (1), the surface fixedly connected with external screw thread (3) of bone puncture needle (2), the surface threaded connection of external screw thread (3) has solid fixed ring (4), the surface rotation of solid fixed ring (4) is connected with fixed block (5), the surface fixedly connected with connecting block (6) of fixed block (5), the inside rotation of connecting block (6) is connected with bracing piece (7), the externally mounted of bracing piece (7) has adjustment mechanism (8), the internally mounted of adjustment mechanism (8) has movable rod (9), the surface fixedly connected with circular plate (10) of movable rod (9).

2. A bone marrow puncture needle according to claim 1, characterized in that: the inside sliding connection of the bone puncture needle (2) has the needle core (11), the surface of needle core (11) and the inside sliding connection of handle (1).

3. A bone marrow puncture needle according to claim 1, characterized in that: the adjusting mechanism (8) comprises a sleeve (801), and the inside of the sleeve (801) is fixedly connected with the outer surface of the supporting rod (7).

4. A bone marrow puncture needle according to claim 3, characterized in that: the inside threaded connection of sleeve (801) has gag lever post (802), the inside of movable rod (9) is opened there is spacing hole (803).

5. A bone marrow puncture needle according to claim 4, characterized in that: the outer surface of the limiting rod (802) is in sliding connection with the inside of the limiting hole (803), and the outer surface of the moving rod (9) is in sliding connection with the inside of the sleeve (801).

6. A bone marrow puncture needle according to claim 1, characterized in that: the outer surface of fixed block (5) fixedly connected with rotor plate (12), the surface threaded connection of external screw thread (3) has spacing ring (13), the surface threaded connection of external screw thread (3) has spacing section of thick bamboo (14).

7. A bone marrow puncture needle according to claim 6, characterized in that: the outer surface of the limiting ring (13) is in sliding connection with the outer surface of the fixed block (5), and the outer surface of the limiting cylinder (14) is in sliding connection with the outer surface of the limiting ring (13).