Totally-closed suction type bone marrow needle

Abstract

The invention discloses a fully-closed suction type bone marrow needle, and belongs to the technical field of medical instruments. The device comprises a handle and a suction pipeline, and the suction pipeline is located in the handle. The suction pipeline is of a trifurcate structure and is provided with three connectors; two Luer interfaces are arranged on the handle, and two interfaces of the suction pipeline are in one-to-one correspondence with the Luer interfaces and are connected with the Luer interfaces; the other connector of the suction pipeline is connected with the bone marrow needle; and the bone marrow needle is positioned in the fixed seat, and the bone marrow needle and the fixed seat are coaxially connected. The full-closed extraction process can be achieved, a needle core does not need to be taken out, extraction and storage integration is achieved, and the cell survival probability is greatly increased; and the diagnosis accuracy is improved.

Description

Technical Field

[0001] The invention relates to the technical field of medical instruments, in particular to a fully enclosed bone marrow suction needle. Background Art

[0002] The existing bone marrow needle is mainly used for puncturing human bones and extracting bone marrow fluid for disease diagnosis. The operation has many steps, and the aspiration process will reduce the cell survival rate, affecting the diagnosis results. After puncture, the needle core must be removed before connecting the syringe for aspiration, which increases the operation time. During the extraction process, air will enter the bone marrow fluid, reducing the cell survival rate and causing errors in the subsequent diagnosis results. Summary of the invention

[0003] In view of this, the present invention proposes a fully enclosed bone marrow aspiration needle, which can realize a fully enclosed extraction process without removing the needle core, realize the integration of extraction and storage, greatly increase the probability of cell survival, and improve the accuracy of diagnosis.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A fully enclosed suction type bone marrow needle comprises a handle and a suction pipeline, wherein the suction pipeline is located inside the handle; the suction pipeline is a three-pronged structure having three interfaces;

[0006] The handle is provided with two Luer interfaces, two of which are connected to the Luer interfaces in a one-to-one correspondence; the other interface of the suction pipeline is connected to the bone marrow needle;

[0007] The handle is also provided with a fixing seat, in which the bone marrow needle is located and the two are coaxially connected.

[0008] Furthermore, a slot for fixing the suction pipeline is provided inside the handle, and the suction pipeline is embedded in the slot.

[0009] Furthermore, the bifurcation point of the suction pipeline of the three-pronged structure is located at the inner end of one of the Luer interfaces.

[0010] Furthermore, the outer surface of the bone marrow needle is etched with scale marks, and the needle tip at the end is triangular.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The handle of the needle holder has two Luer interfaces, and the syringe can be installed on the Luer interface. There is no need to remove the needle core and install the syringe for aspiration. The surgical operation steps are reduced, the operation time is reduced, and the patient's pain is reduced.

[0013] 2. The overall structure realizes a fully enclosed extraction process, without the need to remove the needle core, realizing integrated extraction and storage, greatly increasing the chance of cell survival and improving diagnostic accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the embodiment of the present invention when in use.

[0015] In the figure: 1. needle seat, 2. bone marrow needle, 3. fixing seat, 5. first syringe, 6. second syringe, 13, 14. Luer interface, 11. handle, 12. suction pipeline, 15. clamping position, 21. needle body, 22. needle tip. DETAILED DESCRIPTION

[0016] The following is a complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] One embodiment of the present invention is a bone marrow aspiration device comprising multiple syringes. One syringe is manually operated by the user, while the other syringe is passively filled when the user operates the device. One embodiment of the present invention preferably includes two syringes, wherein the first syringe is used to aspirate bone marrow and the second syringe is intended to be repeatedly aspirated as a collection syringe. One embodiment of the device also has a bone marrow needle that enters the body through puncture to collect bone marrow. One embodiment of the device also preferably has two one-way valves in the aspiration line, which allow bone marrow to be aspirated into the syringe and withdrawn through the needle by the user but not pushed back into the needle. The second valve allows bone marrow to enter the collection syringe but not return to the device.

[0018] Reference Figure 1 This embodiment provides a fully enclosed suction type bone marrow needle, the structure of which includes:

[0019] (1) The suction type bone marrow needle 1 is a needle seat, which is composed of a suction pipeline 12 and a handle 11. The handle 11 is provided with two Luer interfaces 13 and 14 respectively. Before suction, the first syringe 5 and the second syringe 6 can be installed without removing the needle core, which reduces the operation time and pain. The handle 11 is designed with a clamping position 15 that is fixed with the suction pipeline, so that a fully enclosed suction process and storage can be achieved during puncture and suction, which reduces the operation time and greatly increases the survival rate of cells.

[0020] (2) Structure 2 is a bone marrow needle, which is coaxially sleeved on the fixing seat 3. The surface of the bone marrow needle body 21 has clear scale marks, and the puncture depth is controllable. The tip 22 (A) of the bone marrow needle is a triangular needle tip structure with a solid and sharp edge and good puncture force.

[0021] The suction pipeline is located inside the handle; the suction pipeline is a three-pronged structure with three interfaces; the handle is provided with two Luer interfaces, two of which are connected to the Luer interfaces in a one-to-one correspondence; the other interface of the suction pipeline is connected to the bone marrow needle; the handle is also provided with a fixing seat, the bone marrow needle is located in the fixing seat and the two are coaxially connected. The bifurcation point of the suction pipeline of the three-pronged structure is located at the inner end of one of the Luer interfaces.

[0022] (3) Structure 3 is a fixed seat, which serves as a connection piece with the bone marrow needle 2 and the suction pipeline 12 to realize a fully enclosed suction process.

[0023] In order to improve the survival rate of cells in bone marrow fluid and reduce the risk of diagnostic results and operation time, the needle seat is designed with a Luer interface to cooperate with the syringe. The needle seat contains a suction pipeline and a matching clamp to achieve integrated puncture and extraction, thereby improving the survival rate of bone marrow fluid cells and reducing the risk of diagnostic results.

Claims

1. A fully enclosed suction type bone marrow needle, characterized in that: It includes a handle and a suction pipeline, wherein the suction pipeline is located inside the handle; the suction pipeline is a three-pronged structure having three interfaces; The handle is provided with two Luer interfaces, two of which are connected to the Luer interfaces in a one-to-one correspondence; the other interface of the suction pipeline is connected to the bone marrow needle; The handle is also provided with a fixing seat, in which the bone marrow needle is located and the two are coaxially connected.

2. A fully enclosed suction type bone marrow needle according to claim 1, characterized in that: A clamping position for fixing a suction pipeline is provided inside the handle, and the suction pipeline is embedded in the clamping groove.

3. A fully enclosed suction type bone marrow needle according to claim 1, characterized in that: The bifurcation point of the suction line of the three-pronged structure is located at the inner end of one of the Luer interfaces.

4. A fully enclosed suction type bone marrow needle according to claim 1, characterized in that: The outer surface of the bone marrow needle is etched with scale marks, and the needle tip at the end is triangular.

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