CN217645256U

CN217645256U - Biopsy needle

Info

Publication number: CN217645256U
Application number: CN202220038695.2U
Authority: CN
Inventors: 刘雪芳; 夏碧文
Original assignee: Fourth Affiliated Hospital Of Guangzhou Medical University Guangzhou Zengcheng District People's Hospital
Current assignee: Fourth Affiliated Hospital Of Guangzhou Medical University Guangzhou Zengcheng District People's Hospital
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2022-10-25
Anticipated expiration: 2032-01-06

Abstract

The utility model relates to the technical field of medical apparatus and instruments, and provides a biopsy needle, which comprises an outer needle, a needle core, a needle cylinder, a needle handle, an elastic part and two handles, wherein one end of the outer needle is arranged into an inclined plane structure; the needle core is inserted into the outer needle; the needle cylinder is arranged at the other end of the outer needle and is communicated with the outer needle; one end of the needle core penetrates out of the outer needle and then enters the needle cylinder; one end of the needle handle can be inserted into the needle cylinder in a sliding way; the needle handle is connected with the needle core; the elastic piece is arranged in the needle cylinder, one end of the elastic piece is arranged on the bottom surface of the needle handle, and the other end of the elastic piece is abutted against the bottom wall of the needle cylinder; the two handles are respectively arranged on two sides of the needle cylinder. The utility model discloses a biopsy needle simple structure is compact, and the puncture in-process can one-man operation, and is easy and simple to handle stable.

Description

Biopsy needle

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a biopsy needle.

Background

At present, thyroid nodules refer to scattered lesions caused by local abnormal growth of thyroid cells, and the lesions are benign and malignant, so that the thyroid nodules are very important for distinguishing benign and malignant types. The puncture biopsy under the ultrasonic guidance can accurately position thyroid nodules and carry out the puncture biopsy, is one of the most reliable diagnosis methods for various thyroid diseases, can be used for the differential diagnosis of benign and malignant thyroid nodules clinically, determines whether operation treatment is needed or not, and is also used for the related differential diagnosis of benign thyroid diseases.

The existing CL type biopsy needle comprises an outer needle and a needle core, wherein the outer needle is of a hollow structure, and the needle core is inserted into the outer needle; it uses the flow relatively complicacy, the doctor needs the handheld supersound appearance of a hand, another only holds the biopsy needle, puncture to the patient through the nook closing member, when the thyroid gland knot section is punctured, take out the nook closing member, avoid the nook closing member to block up the space of outer needle bottom, make outer needle have sufficient space sample, then cut the thyroid gland knot sample through outer needle, but the assistant assistance is arranged to taking out of nook closing member, and take out the easy aggravation biopsy needle shake of in-process, all cause the influence to patient and sample, the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a biopsy needle, its simple structure is compact, can one-man operation among the puncture process, and is easy and simple to handle stable.

In order to solve the technical problem, the utility model provides a biopsy needle, which comprises an outer needle, a needle core, a needle cylinder, a needle handle, an elastic part and two handles, wherein one end of the outer needle is arranged into an inclined plane structure; the needle core is inserted into the outer needle; the needle cylinder is arranged at the other end of the outer needle and is communicated with the outer needle; one end of the needle core penetrates out of the outer needle and then enters the needle cylinder; one end of the needle handle can be inserted into the needle cylinder in a sliding way; the needle handle is connected with the needle core; the elastic piece is arranged in the needle cylinder, one end of the elastic piece is arranged on the bottom surface of the needle handle, and the other end of the elastic piece is abutted against the bottom wall of the needle cylinder; the two handles are respectively arranged on two sides of the needle cylinder.

Preferably, the syringe is a transparent syringe.

Preferably, one end of the needle handle, which is positioned in the needle cylinder, is provided with a first enlarged part, and the first enlarged part is tightly attached to the inner wall of the needle cylinder.

Preferably, the inner wall of the needle cylinder is provided with a sliding groove, and the first enlarged part is provided with a sliding block corresponding to the sliding groove.

Preferably, the end of the needle handle located outside the syringe barrel is provided with a second enlarged part.

Preferably, the top surface of the second enlarged part is recessed with a pressing part toward the needle cylinder.

Preferably, the pressing portion is provided with an anti-slip pattern.

Preferably, the elastic part is a spring, and the spring is sleeved on the needle core.

Preferably, a reinforcing plate is arranged at the joint of the handle and the needle cylinder.

Preferably, the reinforcing plate is provided with a direction mark.

The utility model discloses following beneficial effect has:

the utility model discloses a biopsy needle sets up the cylinder, sets up the needle handle connected with the nook closing member in the cylinder, can realize the nook closing member to the assigned position to puncture through pressing the needle handle, sets up the elastic component in the cylinder simultaneously, when not pressing the needle handle, the elastic component can jack-up the nook closing member, and the needle handle drives the nook closing member and outwards slides, makes the bottom of outer needle have sufficient sample space; the whole puncture process does not need assistance of an assistant, and the puncture device is simple and convenient to operate and high in efficiency.

Drawings

Fig. 1 is a schematic structural diagram of a biopsy needle provided in an embodiment of the present invention;

FIG. 2 is a cross-sectional view of a syringe according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a needle handle according to an embodiment of the present invention.

Reference numerals:

1. an outer needle; 2. a needle core; 3. a needle cylinder; 31. a chute; 4. a needle handle; 41. a first enlarged portion; 42. a second enlarged portion; 43. a pressing part; 44. anti-skid lines; 45. a slider; 5. an elastic member; 6. a handle; 7. a reinforcing plate; 71. direction marks; 8. and (4) connecting the pipes.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1, a preferred embodiment of the present invention provides a biopsy needle, which includes an outer needle 1, a needle core 2, a needle cylinder 3, a needle handle 4, an elastic member 5, and two handles 6, wherein one end of the outer needle 1 is configured as an inclined plane structure; the needle core 2 is inserted in the outer needle 1; the needle cylinder 3 is arranged at the other end of the outer needle 1 and is communicated with the outer needle 1; one end of the needle core 2 penetrates out of the outer needle 1 and then enters the needle cylinder 3; one end of the needle handle 4 can be inserted into the needle cylinder 3 in a sliding way; the needle handle 4 is connected with the needle core 2; the elastic piece 5 is arranged inside the needle cylinder 3, one end of the elastic piece is arranged on the bottom surface of the needle handle 4, and the other end of the elastic piece is abutted against the bottom wall of the needle cylinder 3; the two handles 6 are respectively arranged on two sides of the needle cylinder 3.

When the biopsy needle is used, a doctor respectively penetrates the thumb and the middle finger of one hand through the two handles 6, the index finger presses the needle handle 4 to enable the bottom end of the needle core 2 to penetrate out of the outer needle 1, the other hand holds the ultrasonic instrument to start puncturing a patient, when the needle is punctured to a specified position, the index finger loosens the needle handle 4, the elastic part 5 jacks up the needle handle 4, the needle core 2 slides outwards along the outer needle 1, sufficient space is reserved at the bottom end of the outer needle 1, then the doctor controls the outer needle 1 to cut thyroid nodules, partial tissues of the nodules are collected at the bottom end of the outer needle 1, and finally the doctor draws out the biopsy needle to finish puncturing and sampling; subsequently, the whole needle handle 4 together with the needle core 2 only needs to slide out of the needle cylinder 3, and then the gas is filled into the needle cylinder 3 to push out the sample in the outer needle 1.

It should be noted that the biopsy needle of the present invention is not only used for sampling thyroid nodule by puncture, but also used for sampling other organ tissues. In addition, if the core 2 is held by the tissue of the patient during use, the doctor pushes the index finger outward against the handle 4 and slides out the core 2 by the elastic force of the elastic member 5 when the core 2 cannot slide outward after releasing the handle 4. The inner diameter of the needle cylinder 3 can also be the same as the outer diameter of a common injector, so that the injector can be inserted into the needle cylinder 3 to be inflated conveniently, a nipple of the injector can be inserted into the top end of the outer needle 1, and the injector inflates air into the outer needle 1, so that a sample in the outer needle 1 is pushed out; the top end of the needle cylinder 3 can also be inserted into an air blowing pipe, and the sample can be pushed out by air blowing through the air blowing pipe. In addition, even if the spring is released to the length of the normal state, at least one part of the needle handle 4 is positioned in the needle cylinder 3, so that the needle handle 4 is prevented from completely sliding out of the needle cylinder 3 in the puncture process, and further the operation of a doctor is influenced and the puncture process is prevented from being influenced.

It should be noted that the above-mentioned using process is only an embodiment of the biopsy needle of the present invention, and does not limit which finger of the doctor controls the handle 6, nor does it limit which finger presses the needle handle 4, and the specific using condition is used by the specific operator according to the actual condition and the operating habit thereof.

In some preferred embodiments of the present invention, the syringe 3 is a transparent syringe 3. In particular, the transparent barrel 3 facilitates external viewing of the interior of the barrel 3.

In some preferred embodiments of the present invention, the end of the needle handle 4 located inside the needle cylinder 3 is provided with a first enlarged portion 41, and the first enlarged portion 41 is tightly attached to the inner wall of the needle cylinder 3. Thus, the first enlarged portion 41 can be brought into close contact with the inner wall of the cylinder 3, and the burden on the hub 2 is reduced when the needle grip 4 is pressed.

Referring to fig. 2 and 3, in some preferred embodiments of the present invention, the inner wall of the cylinder 3 is provided with a slide groove 31, and the first enlarged part 41 is provided with a slider 45 corresponding to the slide groove 31. Therefore, when the needle cylinder 3 is slightly and repeatedly rotated by the handle 6 in the puncture process, the needle core 2 can be driven to rotate together, and the synchronous operation is convenient.

In some preferred embodiments of the present invention, the end of the needle handle 4 located outside the needle cylinder 3 is provided with a second enlarged portion 42. In this manner, the second enlarged portion 42 may facilitate depression by the index finger.

In some preferred embodiments of the present invention, the top surface of the second enlarged portion 42 is recessed toward the needle cylinder 3 to form a pressing portion 43. Thus, the pressing portion 43 can prevent the forefinger from slipping off during the puncturing process, and facilitate the force application of the forefinger.

In some preferred embodiments of the present invention, the pressing portion 43 is provided with an anti-slip pattern 44. Therefore, the forefinger can be further prevented from sliding, and the operation is more accurate and controllable.

In some preferred embodiments of the present invention, the elastic member 5 is a spring, and the spring is sleeved on the needle core 2. In particular, the spring has lighter weight, lower cost and simple structure, and is suitable for the biopsy needle of the utility model.

In some preferred embodiments of the present invention, a reinforcing plate 7 is provided at the junction of the handle 6 and the cylinder 3. In particular, the reinforcing plate 7 can increase the stability of the connection between the handle 6 and the needle cylinder 3, avoiding damage.

In some preferred embodiments of the present invention, the reinforcing plate 7 is provided with direction marks 71. Specifically, the utility model discloses a biopsy needle needs to set up outer needle 1's inclined plane structure up when the puncture, only needs to set up the position and the inclined plane structure cooperation of handle 6, and direction mark 71 marks the direction that finger or finger that handle 6 corresponds passed handle 6, just can make things convenient for the direction of the 1 inclined plane structure of operating personnel identification outer needle, improves the availability factor.

In some preferred embodiments of the present invention, the inner circular edge of the handle 6 is provided with a rubber anti-slip layer. Therefore, the anti-skid glove can prevent skidding and relieve fatigue of the thumb and the forefinger.

In some preferred embodiments of the present invention, a sealing ring is disposed at the communication position between the needle cylinder 3 and the outer needle 1, and the inner diameter of the sealing ring is not larger than the diameter of the needle core 2. Thus, the outer needle 1 can be isolated from the outside without interfering with the sliding of the stylet 2.

In some preferred embodiments of the present invention, the top end of the outer needle 1 is provided with a connecting tube 8, the outer needle 1 is connected to one end of the connecting tube 8, the needle cylinder 3 is connected to the other end thereof, and the inner diameter of the connecting tube 8 is larger than the inner diameter of the outer needle 1. Therefore, the connecting pipe 8 can be inserted by the nipple of the injector, and the injector is convenient to inflate to push out the sample in the outer needle 1.

To sum up, the preferred embodiment of the present invention provides a biopsy needle, which is compared with the prior art:

the utility model discloses a biopsy needle sets up cylinder 3, sets up the needle handle 4 connected with nook closing member 2 in cylinder 3, can realize that nook closing member 2 punctures the assigned position through pressing needle handle 4, sets up elastic component 5 in cylinder 3 simultaneously, when not pressing needle handle 4, elastic component 5 can jack-up nook closing member 4, and nook closing member 2 is slided outwards to needle handle 4 drive, makes the bottom of outer needle 1 have sufficient sample space; the whole puncture process does not need assistance of an assistant, and the puncture device is simple and convenient to operate and high in efficiency.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A biopsy needle, comprising:

one end of the outer needle (1) is arranged to be of a bevel structure;

the needle core (2) is inserted into the outer needle (1);

it is characterized by also comprising:

the needle cylinder (3) is arranged at the other end of the outer needle (1), and the needle cylinder (3) is communicated with the outer needle (1); one end of the needle core (2) penetrates out of the outer needle (1) and then enters the needle cylinder (3);

the needle handle (4), one end of the needle handle (4) can be inserted into the needle cylinder (3) in a sliding way; the needle handle (4) is connected with the needle core (2);

the elastic piece (5) is arranged inside the needle cylinder (3), one end of the elastic piece (5) is arranged on the bottom surface of the needle handle (4), and the other end of the elastic piece is abutted against the bottom wall of the needle cylinder (3);

the two handles (6) are respectively arranged on the two sides of the needle cylinder (3).

2. The biopsy needle of claim 1, wherein: the needle cylinder (3) is a transparent needle cylinder (3).

3. The biopsy needle of claim 1, wherein: one end of the needle handle (4) positioned in the needle cylinder (3) is provided with a first enlarged part (41), and the first enlarged part (41) is clung to the inner wall of the needle cylinder (3).

4. The biopsy needle of claim 3, wherein: the inner wall of the needle cylinder (3) is provided with a sliding groove (31), and the first enlarged part (41) is provided with a sliding block (45) corresponding to the sliding groove (31).

5. The biopsy needle of claim 1, wherein: one end of the needle handle (4) positioned outside the needle cylinder (3) is provided with a second enlarged part (42).

6. The biopsy needle of claim 5, wherein: the top surface of the second enlarged part (42) is depressed with a pressing part (43) towards the needle cylinder (3).

7. The biopsy needle of claim 6, wherein: the pressing part (43) is provided with anti-slip threads (44).

8. The biopsy needle of claim 1, wherein: the elastic piece (5) is a spring, and the spring is sleeved on the needle core (2).

9. The biopsy needle of claim 1, wherein: a reinforcing plate (7) is arranged at the joint of the handle (6) and the needle cylinder (3).

10. The biopsy needle of claim 9, wherein: the reinforcing plate (7) is provided with a direction mark (71).