CN216060588U

CN216060588U - Improved controllable bone puncture biopsy needle

Info

Publication number: CN216060588U
Application number: CN202121444390.3U
Authority: CN
Inventors: 张阳; 张志成; 征华勇; 李放; 张立志
Original assignee: Fourth Medical Center General Hospital of Chinese PLA; 7th Medical Center of PLA General Hospital
Current assignee: Fourth Medical Center General Hospital of Chinese PLA; 7th Medical Center of PLA General Hospital
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-03-18
Anticipated expiration: 2031-06-28

Abstract

The utility model discloses an improved controllable bone puncture biopsy needle, which comprises a first T-shaped plastic handle and a poker, wherein a rigid outer sleeve and a first sample grabbing blade are arranged in the middle of the first T-shaped plastic handle, a puncture needle core is arranged between the rigid outer sleeve and the first sample grabbing blade, the puncture needle core consists of a second tail part and a puncture needle, the puncture needle core is of a rigid structure, the diameter of the puncture needle is 3mm, the length of the puncture needle is 15-16cm, the far end of the puncture needle is 5mm in a conical shape, and the first sample grabbing blade consists of a first tail part, a second sample grabbing blade, a spring ring and a second T-shaped plastic handle. The improved controllable bone puncture biopsy needle provided by the utility model can improve the success rate of puncture, reduce puncture complications, relieve the pain of a patient, reduce the workload of a doctor, and more importantly, increase the probability of puncture point infection.

Description

Improved controllable bone puncture biopsy needle

Technical Field

The utility model relates to the technical field of medical treatment, in particular to an improved controllable bone puncture biopsy needle.

Background

Bone aspiration biopsy is one of the clinical diagnosis and treatment operations commonly used in orthopedics, is commonly used for aspiration biopsy of bone tissues, particularly spinal bone tissues, and is an important means for diagnosing bone tumors, inflammations and infections. At present, a puncture biopsy needle commonly used in clinic is punctured into bone tissue through a hollow sleeve, a biopsy specimen is separated from the bone tissue through rotating the puncture needle, and then the specimen is taken out after negative pressure is generated by suction of an injector. However, in the clinical use process, the problems that the specimen is remained in the body and can not be taken out, multiple times of puncture are needed, and the specimen is damaged because the negative pressure of the suction of the injector is not easy to control often occur. This not only increases the pain of the patient, increases the workload of the doctor, but also more importantly increases the probability of infection at the puncture site. Therefore, there is a need to create a controllable bone biopsy needle to ensure that the specimen tissue can be completely taken out after each puncture, so as to improve the success rate of the puncture and reduce the puncture complications.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an improved controllable bone puncture biopsy needle which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a controllable bone aspiration biopsy needle of improvement, includes T type plastics handle and poker, the middle part of T type plastics handle is provided with the rigidity outer sleeve and sample snatchs the sword No. one, rigidity outer sleeve and sample snatch and are provided with the puncture needle core between the sword.

Preferably, the puncture needle core consists of a second tail part and a puncture needle, the puncture needle core is of a rigid structure, the diameter of the puncture needle is 3mm, the length of the puncture needle is 15-16cm, and the distal end of the puncture needle is 5mm and is in a conical shape.

Preferably, No. one sample snatchs sword, spring coil and No. two T type plastic handle by a afterbody, No. two samples, a afterbody is cylindricly, and external diameter 5mm, internal diameter 3mm, long 5mm, No. two samples snatch the sword and are cylindricly arranged by 3 billet and constitute, and the width is 3mm, and length 14-16cm, and distal end 5mm preflex is the arc, and 3 billet distal end 5mm preflex is the arc, and most advanced contactable can be from breaking and fixing the sample tissue.

Preferably, the spring ring is positioned at the joint part of the first T-shaped plastic handle and the rigid outer sleeve, has the outer diameter of 5mm, the inner diameter of 3mm and the length of 0.8cm-1cm, and is in contact with the first tail part.

Preferably, No. two T type plastic handle are T shape, and the lug is cylindrical structure, and diameter 5mm, length 0.8cm-1cm, and there is the helicitic texture in the periphery, can be gomphosis mutually with a T type plastic handle, can extrude and snatch a afterbody, No. two sample snatchs the arc that the sword can inlay 2 inner walls of rigid outer sleeve and protrudingly.

Preferably, the poker consists of a third tail part and a second poker, and the length of the poker is about 15-16 cm.

Compared with the prior art, the utility model has the following beneficial effects: can improve the success rate of puncture, reduce puncture complication, alleviate patient's misery, reduce doctor's work load, more importantly has increased the probability of puncture point infection, whole controllable bone aspiration biopsy needle of improvement simple structure, convenient operation, the effect of using is better for traditional mode.

Drawings

FIG. 1 is a schematic view of a trocar for controlled biopsy needle;

FIG. 2 is a schematic view of a specimen grasping blade of an improved controllable bone biopsy needle according to the present invention;

FIG. 3 is a schematic view of the engagement between the sample grasping blade and the outer sleeve of the improved bone biopsy needle of the present invention;

FIG. 4 is a schematic view of a stylet of an improved controllable bone biopsy needle of the present invention;

FIG. 5 is a schematic view of a sample grabbed by the improved controllable bone biopsy needle of the present invention.

In the figure: 1. a first T-shaped plastic handle; 2. a rigid outer sleeve; 3. a first specimen grabbing blade; 4. a puncture needle core; 5. a one-number bar; 22. an arc-shaped protrusion; 31. a first tail; 32. a second sample grabbing blade; 33. a spring ring; 34. a second T-shaped plastic handle; 41. a second tail; 42. puncturing needle; 51. a third tail; 52. and a second poker.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1-5, an improved controllable bone aspiration biopsy needle comprises a first T-shaped plastic handle 1 and a poker 5, and is characterized in that: a rigid outer sleeve 2 and a first sample grabbing blade 3 are arranged in the middle of a first T-shaped plastic handle 1, and a puncture needle core 4 is arranged between the rigid outer sleeve 2 and the first sample grabbing blade 3.

Example two:

on the basis of the first embodiment, as shown in fig. 4, the puncture needle core 4 is composed of a second tail part 41 and a puncture needle 42, the puncture needle core 4 is of a rigid structure, the puncture needle has a diameter of 3mm, a length of 15-16cm and a conical distal end 5mm, and the puncture needle core 4 can improve the puncture success rate and reduce puncture complications.

Example three:

on the basis of the first embodiment and the second embodiment, as shown in fig. 2-3, the first specimen-grasping blade 3 is composed of a first tail 31, a second specimen-grasping blade 32, a spring ring 33 and a second T-shaped plastic handle 34, the first tail 31 is cylindrical, 5mm in outer diameter, 3mm in inner diameter and 5mm in length, the second specimen-grasping blade 32 is composed of 3 steel bars arranged in cylindrical shape, the width is 3mm, the length is 14-16cm, the distal end is 5mm pre-bent into arc shape, the distal end of the 3 steel bars is 5mm pre-bent into arc shape, the tip can contact, and can break and fix the specimen tissue, the spring ring 33 is located at the joint part of the first T-shaped plastic handle 1 and the rigid outer sleeve 2, the outer diameter is 5mm, the inner diameter is 3mm, the length is 0.8cm-1cm, and contacts with the first tail 31, the second T-shaped plastic handle 34 is T-shaped, the protruding part is cylindrical structure, the diameter is 5mm, the length is 0.8cm-1cm, the periphery has a screw thread structure, can be gomphosis mutually with a T type plastics handle 1, can extrude and snatch a afterbody 31, No. two sample snatch sword 32 can inlay the arc that the rigidity outer sleeve 2 inner walls is protruding 22, 3 billet distal ends are favorable to breaking apart and fixing the sample tissue, guarantee to take out the sample tissue completely.

Example four:

on the basis of the first embodiment, the second embodiment and the third embodiment, as shown in fig. 5, the poker 5 consists of a third tail part 51 and a second poker 52, the length is about 15-16cm, and the poker 5 is beneficial to pushing the sample tissue out of the trocar.

The utility model relates to an improved controllable bone puncture biopsy needle, before use, a puncture needle core 4 is inserted into a puncture trocar, a puncture needle 42 is punctured into a vertebral pedicle along a puncture point, the puncture needle core 4 is pulled out, the trocar is continuously fed to a lesion part, a lesion tissue with enough length is cut, a first sample grabbing blade 3 and a second sample grabbing blade 32 are screwed in, the tail parts of the grabbing blades are downwards extruded, the first sample grabbing blade 3 and the second sample grabbing blade 32 extend out of a rigid outer sleeve 2 and 5mm to surround a sample tissue, the sample tissue is completely separated from a vertebral body by rotating the puncture trocar, the puncture trocar is pulled out, the sample tissue is taken out, a first T-shaped plastic handle 1 and a second T-shaped plastic handle 34 are screwed out, the sample grabbing blade rebounds into the outer sleeve, the sample tissue is pushed out by a poker 5, the sample tissue can be completely taken out after each puncture, the success rate can be improved, the puncture needle is convenient to use, and the puncture needle is convenient to use, Reduces puncture complications, relieves the pain of patients, reduces the workload of doctors, more importantly, increases the probability of puncture point infection, and is more practical.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a controllable bone aspiration biopsy needle of improvement, includes a T type plastics handle (1) and poker (5), its characterized in that: a rigid outer sleeve (2) and a sample grabbing blade (3) are arranged in the middle of the first T-shaped plastic handle (1), and a puncture needle core (4) is arranged between the rigid outer sleeve (2) and the sample grabbing blade (3).

2. The improved controllable bone aspiration biopsy needle of claim 1, wherein: the puncture needle core (4) is composed of a second tail part (41) and a puncture needle (42), the puncture needle core (4) is of a rigid structure, the diameter of the puncture needle is 3mm, the length of the puncture needle is 15-16cm, and the far end of the puncture needle is 5mm and is in a conical shape.

3. The improved controllable bone aspiration biopsy needle of claim 2, wherein: a sample snatchs sword (3) snatchs sword (32), spring coil (33) and No. two T type plastics handles (34) by afterbody (31), No. two samples, afterbody (31) are cylindricly, and external diameter 5mm, internal diameter 3mm, long 5mm, No. two samples snatch sword (32) and comprise 3 billet that are cylindric range, and the width is 3mm, and length 14-16cm, distal end 5mm preflex are the arc, and 3 billet distal end 5mm preflex is the arc, and most advanced contactability can be from disconnected and fix the sample tissue.

4. The improved controllable bone aspiration biopsy needle of claim 3, wherein: the spring ring (33) is positioned at the joint of the first T-shaped plastic handle (1) and the rigid outer sleeve (2), has the outer diameter of 5mm, the inner diameter of 3mm and the length of 0.8cm-1cm, and is in contact with the first tail part (31);

no. two T type plastic handle (34) are T shape, and the lug is cylindrical structure, and diameter 5mm, length 0.8cm-1cm, and the periphery has a helicitic texture, can with T type plastic handle (1) looks gomphosis, can extrude and snatch a afterbody (31), No. two sample snatch sword (32) can inlay arc protruding (22) of rigidity outer sleeve (2) inner wall.

5. The improved controllable bone aspiration biopsy needle of claim 1, wherein: the poker (5) consists of a third tail part (51) and a second poker (52), and the length is about 15-16 cm.