CN213465117U - Bone marrow biopsy needle with drag handle - Google Patents

Abstract

The utility model discloses a bone marrow biopsy needle with a dragging handle, which comprises a puncture needle, a needle handle with a biopsy needle core, a middle connecting post and a dragging handle. The biopsy needle with the pulling handle capable of being flexibly disassembled and assembled increases the accurate force application when the handle pulls the needle, has a simple structure, can be repeatedly used, is low in cost, can reduce the operation failure caused by insufficient experience, improper force application and some special conditions of an operator, and improves the operation stability.

Description

Bone marrow biopsy needle with drag handle

Technical Field

The utility model relates to the field of medical equipment, especially, relate to a take marrow biopsy needle that drags handle.

Background

The blood system diseases refer to diseases which are primary or involve blood and hematopoietic organs. Common diseases include: erythrocytic diseases, such as various types of anemia including iron deficiency anemia and polycythemia; 2. granulocytic diseases such as agranulocytosis, leukemia-like response, and the like; 3. monocyte-derived macrophage diseases, e.g., inflammatory histiocytosis; 4, diseases of lymphocytes and plasma cells, such as malignant blood diseases like lymphoma, multiple myeloma, etc.; 5. hematopoietic stem cell diseases such as paroxysmal nocturnal hemoglobinuria, acute leukemia, etc.; 6. and hemorrhagic and thrombotic disorders such as immune thrombocytopenia. Bone marrow aspiration and biopsy are very important technical means for definitive diagnosis.

Bone marrow aspiration (bone marrow aspiration) is a common diagnostic technique for collecting bone marrow fluid, and is used for clinical examination of blood cell morphology, hematopoietic stem cell culture, cytogenetic analysis, pathogenic biology examination, etc. to assist clinical diagnosis, observation of therapeutic effect, prognosis judgment, etc. Bone marrow biopsy (bone marrow biopsy) is a diagnostic technique commonly used in clinic and has great significance for diagnosing myelodysplastic syndrome, primary or secondary myelofibrosis, bone marrow metastatic cancer, multiple myeloma and the like.

The specific operation process comprises the following steps: usually, the anterior superior iliac spine or the posterior superior iliac spine is selected as a puncture point, and when the anterior superior iliac spine is adopted, the patient is in a supine position; when the posterior iliac spine is used, the patient is in lateral decubitus. The local skin of conventional disinfection, the operator wears aseptic gloves, shop aseptic hole piece, the local infiltration anesthesia of 2% lidocaine, handheld marrow pjncture needle and the perpendicular puncture of bone face, rotate the pjncture needle about the needle body major axis of pjncture needle, slowly pierce the sclerotin, when feeling that the puncture resistance disappears, and when the pjncture needle has been fixed in the bone, extract pjncture needle nook closing member, use aseptic syringe to extract marrow liquid 0.1 ~ 0.2ml preparation marrow smear sample, be used for the nucleated cell count and prepare several marrow liquid smears, insert the nook closing member, extract the pjncture needle. Then an operator sleeves the needle tube on a handle with a needle core, the needle is pulled out after the handle of the bone marrow biopsy needle is held by hand and the needle is inserted to a certain depth of sclerotin in a clockwise direction, the connecting post is connected to the rear end of the needle seat, the needle core is inserted again, the needle is inserted continuously in the clockwise direction, the needle tube is rotated 360 degrees after the depth is reached, the bone marrow tissue can be separated by the groove at the front end of the needle tube, then the biopsy needle is withdrawn in the clockwise direction, the middle connecting post is removed, the needle core is inserted into the needle tube, the bone marrow tissue is taken out, is immediately placed in a fixing solution for fixing, and is timely inspected.

Bone marrow aspiration and biopsy are invasive procedures that require specialized training to be performed by medical personnel. In clinical practice, the operation fails due to various factors such as the specific illness state of the patient, the skill level of the operator, the equipment and the like, the material is not taken successfully, and the illness state is delayed. As described above, in the bone marrow biopsy procedure, the operator needs to hold the syringe, the connecting post, and the needle handle to integrally rotate and pull out the biopsy needle. When the operator experiences insufficient experience or encounters difficult conditions, force cannot be applied correctly, the biopsy needle is easy to break, even the kan pier is in the bone marrow, so that the bone marrow material taking fails, the biopsy needle of the kan pier in the bone can be taken out by means of surgical equipment, the individual condition possibly needs surgical operation treatment, and great pain is possibly brought to the patient.

The existing bone puncture biopsy needle is relatively simple in structure (as shown in figure 1), and comprises a needle cylinder 1, a connecting column 2 and a needle handle 4 with a biopsy needle 3, wherein the needle cylinder 1, the connecting column 2 and the needle handle 4 are lack of effective force application points when the needle is pulled out in an integrated rotating mode, and 1) the three parts do relative motion, so that the biopsy needle cannot be pulled out, or the puncture needle can be pulled out, but the materials cannot be successfully taken; 2) the force application directions are not opposite, so that the puncture needle is bent and even broken; 3) in severe cases, the broken biopsy needle is placed in the human body. To the above-mentioned problem, for making the operation of bone marrow biopsy easier simple, safe effective, the utility model discloses optimize the structure of bone marrow biopsy needle.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a bone marrow biopsy needle with a drag handle, which can solve the problems.

The purpose of the utility model is realized by adopting the following technical scheme:

the utility model provides a take marrow biopsy needle of dragging handle, includes pjncture needle and the needle handle of taking the biopsy nook closing member the rear end of pjncture needle is fixed to be set up the puncture tail post, the terminal concave interface of puncture tail post with the handle convex joint adaptation of the department that adjoins of needle handle front end and biopsy nook closing member tail end, marrow biopsy needle still includes a dragging handle, the handle hole of the external diameter looks adaptation with the pjncture needle is seted up in the middle part of dragging the handle.

Preferably, the bone marrow biopsy needle further comprises an intermediate connecting column, the intermediate connecting column comprises an intermediate connector and an intermediate port, the intermediate connector is the same as the handle male connector structure, and the intermediate port is the same as the terminal female connector structure.

Preferably, the inner apertures of the puncture needle, the puncture tail column and the middle connecting column are equal and larger than the outer diameter of the biopsy needle core; the inner diameter of the handle hole of the mop handle is larger than the outer diameter of the puncture needle.

Compared with the prior art, the beneficial effects of the utility model reside in that: the biopsy needle with the pulling handle capable of being flexibly disassembled and assembled increases the accurate force application when the pulling of the handle is helpful to pulling the needle, and further reduces the operation failure caused by insufficient experience, improper force application and some special conditions of an operator.

Drawings

FIG. 1 is a schematic view of a prior art biopsy needle;

FIG. 2 is a schematic view of a biopsy needle with a drag handle according to the present application;

FIG. 3 is a schematic view of a bone marrow biopsy needle assembly;

fig. 4 is a schematic view of a mop handle.

In the figure:

1. a needle cylinder; 2. connecting columns; 3. a biopsy needle is arranged; 4. a needle handle;

10. puncturing needle; 11. puncturing the tail pillar;

20. a needle handle; 21. a biopsy needle core;

30. connecting a column in the middle;

40. a mop handle;

41. a shank hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 2-4, a bone marrow biopsy needle with a drag handle includes a puncture needle 10, a needle handle 20 with a biopsy needle core 21, an intermediate post 30 and a drag handle 40.

A puncture tail column 11 is fixedly arranged at the rear end of the puncture needle 10, a tail end concave interface is arranged at the tail end of the puncture tail column 11, and a handle convex joint matched with the tail end concave interface is arranged at the joint of the front end of the needle handle 20 and the tail end of the biopsy needle core 21; the middle part of the drag handle 40 is provided with a handle hole 41 which is matched with the outer diameter of the puncture needle 10.

Further, the middle post 30 includes a middle joint and a middle joint, the middle joint is the same as the handle male joint structure, and the middle joint is the same as the terminal female joint structure. Wherein, the middle connecting column 30 comprises a long connecting column and a short connecting column for different clinical situations.

Furthermore, the inner bore diameters of the puncture needle 10, the puncture tail column 11 and the middle connecting column 30 are equal and larger than the outer diameter of the biopsy needle core 21; the inner diameter of the handle hole 41 of the drag handle 40 is larger than the outer diameter of the puncture needle 10.

Further, a groove is provided at the front end of the biopsy needle core 21 to facilitate the detachment of bone marrow tissue.

Furthermore, the outer surfaces of the puncture tail column 11, the middle connecting column 30 and the needle handle 20 are all provided with anti-skid layers or anti-skid grains.

Furthermore, the outer surfaces of the middle joint and the handle convex joint are provided with external threads, and the inner surfaces of the middle joint and the tail end concave joint are provided with internal threads matched with the external threads.

Alternatively, the front end surfaces of the middle joint and the handle male joint are provided with positioning convex blocks, and the middle joint and the tail end female joint are radially provided with positioning grooves, so that the middle joint and the tail end female joint are convenient to quickly clamp and position.

The operation method comprises the following steps: an operator sleeves a needle tube, namely, a puncture needle 10 on a needle handle 20, fixes a dragging handle 40 at the root of the puncture needle 10, holds a bone marrow biopsy needle to insert the needle in a clockwise direction to a certain depth of bone, extracts a needle core, connects an upper middle connecting column 30 at the rear end of a needle base, then inserts a biopsy needle core 21, continues to insert the needle in the clockwise direction, rotates the puncture needle 10 by 360 degrees after the depth reaches, a groove at the front end of the puncture needle 10 can break bone marrow tissue, then places index fingers and middle fingers of a right hand on two sides of the biopsy needle and the dragging handle 40 respectively, applies force by the dragging handle 40, rotates and integrally extracts the needle tube, the middle connecting column 30 and the needle handle 20 with the biopsy needle core 21, removes the middle connecting column 30, inserts the needle tube by the biopsy needle core 21, further extracts the bone marrow tissue, and immediately places the bone marrow tissue in a.

To sum up, the marrow biopsy needle of handle is dragged in area of this application, it drags handle simple structure, and the technology is simple and easy, and the material does not have special requirement, can be disposable plastics material, also can be the metal material, uses repeatedly after the disinfection. Can be obtained by taking materials according to local areas, modifying by using related medical equipment in a sterile environment, and processing by contacting related enterprises.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (7)

1. A bone marrow biopsy needle with a pull handle, comprising a puncture needle (10) and a needle handle (20) with a biopsy needle core (21), characterized in that: the integrative puncture tail post (11) that sets up in the rear end of pjncture needle (10), puncture tail post (11) end is equipped with the concave interface of end, needle handle (20) front end and biopsy nook closing in department of 21 tail end are equipped with the handle convex joint with the concave interface adaptation of end, marrow biopsy needle still includes one and drags handle (40), the handle hole (41) with the external diameter looks adaptation of pjncture needle (10) are seted up in the middle part of dragging handle (40).

2. The bone marrow biopsy needle according to claim 1, characterized in that: the bone marrow biopsy needle further comprises an intermediate connecting column (30), wherein the intermediate connecting column (30) comprises an intermediate connector and an intermediate port, the intermediate connector is identical to the handle male connector structure, and the intermediate port is identical to the terminal female connector structure.

3. The bone marrow biopsy needle according to claim 2, characterized in that: the intermediate connecting column (30) comprises a long connecting column and a short connecting column for different clinical situations.

4. The bone marrow biopsy needle according to claim 2, characterized in that: the inner bore diameters of the puncture needle (10), the puncture tail column (11) and the middle connecting column (30) are equal and are larger than the outer diameter of the biopsy needle core (21); the inner diameter of a handle hole (41) of the dragging handle (40) is larger than the outer diameter of the puncture needle (10).

5. The bone marrow biopsy needle according to claim 2 or 4, characterized in that: and anti-skid layers or anti-skid grains are arranged on the outer surfaces of the puncture tail column (11), the middle connecting column (30) and the needle handle (20).

6. The bone marrow biopsy needle according to claim 2 or 4, characterized in that: the outer surfaces of the middle joint and the handle convex joint are provided with external threads, and the inner surfaces of the middle joint and the tail end concave joint are provided with internal threads matched with the external threads.

7. The bone marrow biopsy needle according to claim 2 or 4, characterized in that: the front end surfaces of the middle joint and the handle convex joint are provided with positioning convex blocks, and the middle joint and the tail end concave joint are radially provided with positioning grooves so as to be convenient for quick clamping and positioning.

Images