CN215227920U

CN215227920U - Full-automatic biopsy needle

Info

Publication number: CN215227920U
Application number: CN202120724971.6U
Authority: CN
Inventors: 杨锡联; 杨晓锋
Original assignee: Xi'an Gaotong Medical Development Co ltd
Current assignee: Xi'an Gaotong Medical Development Co ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-12-21
Anticipated expiration: 2031-04-09

Abstract

The utility model relates to a high technology specialization service field discloses a full-automatic type biopsy needle, it includes the casing, install outer needle file in the casing, the inner needle seat, first spring and second spring, install the needle tubing on the outer needle file, install the needle bar on the inner needle file, the needle bar runs through outer needle seat cover in the needle tubing, first spring passes through outer needle seat compression and installs in the casing, the second spring passes through inner needle seat compression and installs in the casing, still be provided with the first percussion of locking outer needle file in the casing and the second percussion of needle file in the locking is detained, still be provided with the percussion ware of unblock inner needle file and outer needle file in proper order in the casing. The utility model has the advantages that: compress first spring and second spring simultaneously, until first percussion is detained and is detained outer needle file and interior needle file of locking respectively with the second percussion, then insert the needle tubing and organize, press the trigger simultaneously and unblock interior needle file and outer needle file in proper order, the tissue cutting of taking a sample when the needle tubing of back unblock slides the needle bar, the sample is convenient.

Description

Full-automatic biopsy needle

Technical Field

The utility model relates to a high technology specialty service field, especially a full-automatic type biopsy needle.

Background

Early detection, correct diagnosis and timely treatment have important influence on the prognosis of tumors. In recent years, with the improvement of examination means and methods, the accuracy of tumor diagnosis is gradually improved, but a large part of tumors still have no typical imaging characteristics, so that the simple imaging technology examination has the problem of difficult diagnosis. Accurate diagnosis requires a combination of clinical, imaging and pathology, where biopsy diagnosis plays a key role in the selection of treatment regimens. The biopsy comprises two forms of puncture cutting and open biopsy, the open biopsy adopts a surgical incision method, the operation is very troublesome, time-consuming and labor-consuming, the surgical incision is large and slow to heal, and the taken tumor tissue is directly exposed in the air and is easy to be polluted, so that the accuracy of the inspection result is influenced; therefore, the puncture needle is mostly used for obtaining tumor tissue specimens clinically, but the needle point is a bevel blade and can not effectively cut tissues, so that the effective tissue specimens are difficult to obtain in the material taking process of the specimens.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a full-automatic type biopsy needle to solve the difficult problem of cutting tissue among the current biopsy needle sampling process.

The purpose of the utility model is realized through the following technical scheme: a full-automatic biopsy needle comprises a shell, wherein an outer needle seat, an inner needle seat, a first spring and a second spring are installed in the shell, a needle tube is installed on the outer needle seat, a needle rod is installed on the inner needle seat, the needle rod penetrates through the outer needle seat and is sleeved in the needle tube, one end of the needle rod, which is positioned in the needle tube, penetrates through the shell, the first spring is installed in the shell through the outer needle seat in a compression mode, the second spring is installed in the shell through the inner needle seat in a compression mode, a driving mechanism enabling the outer needle seat to be linked with the inner needle seat is further arranged in the shell, the outer needle seat compresses the first spring through the driving mechanism, the inner needle seat compresses the second spring through the driving mechanism, a first trigger buckle and a second trigger buckle are further arranged in the shell, the outer needle seat after the first spring is compressed is locked through the first trigger buckle, the inner needle base after the second spring is compressed is locked through the second trigger button, and a trigger for sequentially unlocking the inner needle base and the outer needle base is further arranged in the shell.

Preferably, actuating mechanism includes a pair of curb plate and first long logical groove, first long logical groove is followed the direction of needle tubing is seted up on the casing, and is a pair of the curb plate is located respectively the both sides of outer needle file, be provided with the guide post on the curb plate, the guide post passes first long logical groove, still be provided with a pair of spring bolt on the curb plate, a pair of spring bolt supports respectively outer needle file on with on the inner needle file.

Preferably, the driving mechanism further comprises a handle shell, the handle shell is hinged to the shell, a sliding groove is formed in the handle shell, and the guide column is slidably mounted in the sliding groove.

Preferably, a cylinder is arranged in the shell, the cylinder is sleeved on the pressing section of the trigger, a first channel is formed in the inner wall of the cylinder along the axial lead of the cylinder, a guide block is arranged on the pressing section of the trigger, the guide block slides along the first channel, a first rotating handle is arranged on the cylinder, an arc-shaped groove is further formed in the shell, and the first rotating handle penetrates through the arc-shaped groove.

Preferably, a second long through groove is formed in the shell, a second rotary handle is slidably mounted in the second long through groove, a limiting barrel is arranged on the second rotary handle, two ends of the second spring are respectively abutted to the outer needle base and the limiting barrel, and a notch for clamping the second rotary handle is formed in the second long through groove.

Preferably, the casing includes public half shell and female half shell, be provided with the reference column in the female half shell, seted up the locating hole on the public half shell, the reference column tight fit is installed in the locating hole.

Preferably, a sampling port is formed in the needle rod, and the sampling port is far away from the outer needle base.

Preferably, the needle tube is sleeved with a sheath.

Compared with the prior art, the beneficial effects of the utility model are that: the outer needle seat and the inner needle seat move simultaneously through the driving mechanism, the needle tube and the needle rod retreat into the shell, the first spring and the second spring are compressed simultaneously until the first trigger buckle and the second trigger buckle respectively lock the outer needle seat and the inner needle seat, then the needle tube is inserted into tissues, the trigger is pressed simultaneously to sequentially unlock the inner needle seat and the outer needle seat, and the tissues for sampling are cut when the needle tube subjected to later unlocking slides through the needle rod, so that the sampling is convenient.

Drawings

Fig. 1 is a first schematic structural diagram of the present invention;

FIG. 2 is a second schematic structural view of the present invention;

fig. 3 is a third schematic structural view of the present invention;

fig. 4 is a fourth schematic structural diagram of the present invention;

FIG. 5 is a schematic view of the mounting structure of the rotation handle;

in the figure, 1-shell, 2-outer needle seat, 3-inner needle seat, 4-first spring, 5-second spring, 6-needle tube, 7-needle rod, 8-second trigger button, 9-trigger, 10-side plate, 11-first long through groove, 12-guide post, 13-lock tongue, 14-handle shell, 15-sliding groove, 16-cylinder, 17-guide block, 18-first rotating handle, 19-arc groove, 20-second long through groove, 21-second rotating handle, 22-limiting cylinder, 23-notch, 24-sampling port, 25-sheath, 26-first trigger button and 27-first channel.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which the products of the present invention are conventionally placed in use, or the position or positional relationship which the skilled person conventionally understand, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the reference is made must have a specific position, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "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 invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-5, a fully automatic biopsy needle comprises a housing 1, an outer needle base 2, an inner needle base 3, a first spring 4 and a second spring 5 are installed in the housing 1, a needle tube 6 is installed on the outer needle base 2, a needle rod 7 is installed on the inner needle base 3, the needle rod 7 penetrates through the outer needle base 2 and is sleeved in the needle tube 6, a sampling port 24 is opened on the needle rod 7, the sampling port 24 is far away from the outer needle base 2, one end of the needle rod 7 located in the needle tube 6 penetrates through the housing 1, the first spring 4 is installed in the housing 1 through the compression of the outer needle base 2, the second spring 5 is installed in the housing 1 through the compression of the inner needle base 3, a driving mechanism for linking the outer needle base 2 and the inner needle base 3 is further arranged in the housing 1, the outer needle base 2 compresses the first spring 4 through the driving mechanism, the inner needle base 3 compresses the second spring 5 through the driving mechanism, a first trigger 26 and a second trigger 8 are further arranged in the housing 1, the outer needle base 2 after compressing the first spring 4 is locked through a first trigger button 26, the inner needle base 3 after compressing the second spring 5 is locked through a second trigger button 8, a trigger 9 is further arranged in the shell 1, a pressing section of the trigger 9 is positioned outside the shell 1, the inner needle base 3 and the outer needle base 2 are sequentially unlocked through pressing the trigger 9, the driving mechanism comprises a pair of side plates 10 and a first long through groove 11, the first long through groove 11 is formed in the shell 1 along the direction of the needle tube 6, the pair of side plates 10 are respectively positioned on two sides of the outer needle base 2, a guide column 12 is arranged on the side plates 10, the guide column 12 penetrates through the first long through groove 11, a pair of lock tongues 13 is further arranged on the side plates 10, the pair of lock tongues 13 respectively abut against the outer needle base 2 and the inner needle base 3, the driving mechanism further comprises a handle shell 14, the handle shell 14 is hinged on the shell 1, a sliding groove 15 is formed in the handle shell 14, the guide column 12 is slidably mounted in the sliding groove 15, the handle shell 14 is pulled up, the guide column 12 slides along the first long through groove 11, so that the side plate 10 slides, the outer needle seat 2 and the inner needle seat 3 compress the first spring 4 and the second spring 5 under the action of the locking tongue 13 simultaneously until the first trigger buckle 26 and the second trigger buckle 8 lock the outer needle seat 2 and the inner needle seat 3 respectively, then the needle tube 6 is inserted into tissues, the inner needle seat 3 and the outer needle seat 2 are sequentially unlocked by pressing the trigger 9, and the tissues to be sampled are cut when the needle tube 6 unlocked later slides through the needle rod 7, so that the sampling is convenient.

In this embodiment, as shown in fig. 1 to 5, a cylinder 16 is disposed in a housing 1, the cylinder 16 is sleeved on a pressing section of a trigger 9, a first channel 27 is disposed on an inner wall of the cylinder 16 along an axial line thereof, a guide block 17 is disposed on the pressing section of the trigger 9, the guide block 17 slides along the first channel 27, a first rotating handle 18 is disposed on the cylinder 16, an arc-shaped groove 19 is further disposed on the housing 1, the first rotating handle 18 passes through the arc-shaped groove 19, and the guide block 17 is aligned with the first channel 27 or dislocated from the first channel 27 by pulling the first rotating handle 18, so as to unlock the trigger 9 or lock the trigger 9, prevent accidental pressing of the trigger 9 to trigger triggering of a trigger, and make a sampling process safer.

In this embodiment, as shown in fig. 1 to 5, a second long through groove 20 is formed in the housing 1, a second rotating handle 21 is slidably mounted in the second long through groove 20, a limiting cylinder 22 is disposed on the second rotating handle 21, two ends of the second spring 5 respectively abut against the outer needle base 2 and the limiting cylinder 22, a notch 23 for locking the second rotating handle 21 is disposed on the second long through groove 20, a sampled tissue exists in the sampling groove after sampling, the second rotating handle 21 is unlocked at this time, then the second rotating handle 21 slides along the second long through groove 20, the needle tube 6 is pushed into the housing 1 at this time, and the needle rod 7 is convenient for taking the sampled tissue from the needle tube 6.

In this embodiment, as shown in fig. 1-5, the housing 1 includes a male half shell and a female half shell, a positioning column is disposed in the female half shell, a positioning hole is disposed on the male half shell, the positioning column is tightly fitted in the positioning hole, and the housing 1 is convenient to disassemble, so as to overhaul or replace internal components.

In the embodiment, as shown in fig. 1-5, the needle tube 6 is sleeved with the sheath 25, and the sheath 25 is sleeved on the needle tube 6 to protect the needle tube 6 when the needle tube 6 is idle, so as to prolong the service life of the needle tube 6 and prevent the needle tube 6 from accidentally pricking medical staff or patients.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a full-automatic type biopsy needle, includes the casing, install outer needle file, inner needle file, first spring and second spring in the casing, install the needle tubing on the outer needle file, install needle bar, its characterized in that on the inner needle file: the needle rod penetrates through the outer needle seat and is sleeved in the needle tube, one end of the needle rod, which is positioned in the needle tube, penetrates through the shell, the first spring is installed in the shell through the outer needle base in a compression mode, the second spring is installed in the shell through the inner needle base in a compression mode, a driving mechanism which enables the outer needle seat and the inner needle seat to be linked is also arranged in the shell, the outer needle seat compresses the first spring through the driving mechanism, the inner needle seat is compressed by the driving mechanism, the second spring is arranged in the shell, a first trigger button and a second trigger button are arranged in the shell, the outer needle seat is compressed after the first spring and passes through the first trigger button, the inner needle seat is compressed after the second spring and passes through the second trigger button, and the inner needle seat is sequentially unlocked by the trigger of the outer needle seat.

2. A fully automatic biopsy needle according to claim 1, wherein: actuating mechanism includes a pair of curb plate and first long logical groove, first long logical groove is followed the direction of needle tubing is seted up on the casing, and is a pair of the curb plate is located respectively the both sides of outer needle file, be provided with the guide post on the curb plate, the guide post passes first long logical groove, still be provided with a pair of spring bolt on the curb plate, a pair of spring bolt supports respectively outer needle file on with on the interior needle file.

3. A fully automatic biopsy needle according to claim 2, wherein: the driving mechanism further comprises a handle shell, the handle shell is hinged to the shell, a sliding groove is formed in the handle shell, and the guide column is slidably mounted in the sliding groove.

4. A fully automatic biopsy needle according to claim 1, wherein: the trigger is characterized in that a cylinder is arranged in the shell and sleeved on a pressing section of the trigger, a first channel is formed in the inner wall of the cylinder along the axial lead of the cylinder, a guide block is arranged on the pressing section of the trigger and slides along the first channel, a first rotating handle is arranged on the cylinder, an arc-shaped groove is further formed in the shell, and the first rotating handle penetrates through the arc-shaped groove.

5. A fully automatic biopsy needle according to claim 1, wherein: the long logical groove of second has been seted up on the casing, slidable mounting has the rotatory handle of second in the long logical groove of second, be provided with spacing section of thick bamboo on the rotatory handle of second, the both ends of second spring are supported respectively outer needle file with on the spacing section of thick bamboo, it dies to be provided with the card on the long logical groove of second the breach of the rotatory handle of second.

6. A fully automatic biopsy needle according to claim 1, wherein: the casing includes half public shell and half female shell, be provided with the reference column in the half female shell, the locating hole has been seted up on the half public shell, the reference column tight fit is installed in the locating hole.

7. A fully automatic biopsy needle according to claim 1, wherein: a sampling port is formed in the needle rod and is far away from the outer needle base.

8. A fully automatic biopsy needle according to claim 1, wherein: the needle tube is sleeved with a sheath.