CN219000368U - Interventional department is with convenient accurate efficient biopsy needle of sample - Google Patents

Abstract

The utility model relates to the technical field of medical instruments, and discloses a biopsy needle with convenient and accurate sampling and high efficiency for interventional departments. This interventional department is with convenient accurate efficient biopsy needle of sample sets up the collecting vat of biopsy needle into helical structure's cell body, realizes the swing joint of needle sheath and nook closing member simultaneously through the fixture block that corresponds to finally realize the effect of nook closing member spiral rotation sample, make the dynamics of biopsy needle sampling operation control more easily, make things convenient for the operation of biopsy needle, simultaneously through the mutual rotation of needle sheath and nook closing member, can utilize the sawtooth of needle sheath bottom to reach the purpose that sample and human tissue break away from, thereby avoided the problem of tissue adhesion, improved sampling efficiency.

Description

Interventional department is with convenient accurate efficient biopsy needle of sample

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a biopsy needle with convenient and accurate sampling and high efficiency for interventional departments.

Background

The biopsy needle is a medical instrument for sampling and sucking cells from living tissues of cone tumors, unknown tumors and the like of various organs such as kidneys, livers, lungs, breasts, thyroid glands, prostates, pancreas, testes, uterus, ovaries, body surfaces and the like.

When the biopsy needle is used for biopsy sampling, firstly, the hollow needle and the solid needle are pierced into soft tissues together, positioning is realized before the biopsy needle reaches a target position, then the solid needle is static, the hollow needle continuously pierces the soft tissues forwards until the biopsy needle reaches the target position, after the hollow needle obtains the biopsy tissue at the target position, the tissue sample and the biopsy needle are withdrawn out of the soft tissues together by utilizing a vacuum adsorption mode, the sample and the human tissues are separated by the vacuum adsorption mode, the sample and the human tissues are separated basically by external pulling force when the biopsy needle is taken out, adhesion phenomenon often occurs, sampling failure or insufficient sampling quantity is caused, pathological biopsy is carried out, and meanwhile, certain damage and discomfort are caused to a patient by pulling and pulling.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a biopsy needle with convenient and accurate sampling and high efficiency for interventional departments, and solves the problems in the prior art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a convenient accurate efficient biopsy needle of sample for interventional department, includes the needle sheath, the inside of needle sheath sets up the needle core that has, the sampling groove has been seted up to the outer wall of needle core, the inner wall of needle sheath is connected with the fixture block, the bottom configuration of needle sheath has the sawtooth.

Optionally, the needle sheath is movably sleeved outside the needle core through the clamping block, and vertical lines for increasing friction are arranged at the top end of the needle sheath.

Optionally, the bottom of the needle core is a tip, the top of the needle core is connected with a handle, the handle is of a flat structure, and the length of the handle is half of the total length of the needle core.

Optionally, the sawtooth is the bottom and is sharp-pointed sawtooth form structure, and the sawtooth is connected in the bottom of needle sheath evenly.

Optionally, the sampling groove is arranged on the outer wall of the needle core, and the sampling groove is of a spiral groove structure and penetrates through the upper end and the lower end of the needle core.

Optionally, the fixture block is connected on the inner wall of needle sheath, and the fixture block has two in needle sheath inner wall both sides of connection respectively to and the outside specification of fixture block is less than the inside specification of sampling tank.

The utility model provides a biopsy needle with convenient, fast, accurate and high efficiency for interventional department sampling, which has the following beneficial effects:

1. this interventional department is with convenient accurate efficient biopsy needle of sample sets up the collecting vat of biopsy needle into helical structure's cell body, realizes the swing joint of needle sheath and nook closing member simultaneously through the fixture block that corresponds to finally realize the effect of nook closing member spiral rotation sample, make the dynamics of biopsy needle sampling operation control more easily, make things convenient for the operation of biopsy needle, simultaneously through the mutual rotation of needle sheath and nook closing member, can utilize the sawtooth of needle sheath bottom to reach the purpose that sample and human tissue break away from, thereby avoided the problem of tissue adhesion, improved sampling efficiency.

2. This interventional department is with convenient accurate efficient biopsy needle of sample sets up the sampling groove through the outside at the nook closing member to through the cooperation of fixture block with the sampling groove, can realize the rotatory sample of nook closing member, thereby make things convenient for the biopsy needle to get into the tissue, sample through rotatory mode control biopsy needle simultaneously, can avoid the difficult problem of control of traditional telescopic mode dynamics, efficiency and stability when can improving the sample.

3. This interventional department is with convenient accurate efficient biopsy needle of sample sets up the sawtooth through the bottom at the needle sheath for after the needle core sample is accomplished, the sawtooth can realize the separation of human tissue and sample in the sampling groove along with the rotation of needle sheath, thereby has avoided the problem of tissue adhesion when taking a sample, avoids the phenomenon of the sample failure that tissue adhesion caused, has improved sampling efficiency.

4. In a word, this interventional department is with convenient accurate efficient biopsy needle of sample, cup joint through utilizing fixture block and helicla flute with the needle core and needle sheath, can realize the spiral of needle core and needle sheath and cup joint, simultaneously can be through the removal of rotary control needle core to accomplish the sample work of needle core, the dynamics control of biopsy needle when conveniently taking a sample has avoided the dynamics too big to the damage that causes the human body, simultaneously through the cooperation of needle cover bottom sawtooth, can separate sample and human tissue in the sampling groove, thereby avoided the problem of tissue adhesion in the sampling process, improved sampling efficiency.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the present utility model;

FIG. 3 is a schematic view of the structure of the inventive needle;

fig. 4 is a schematic view of the structure of the needle sheath of the present utility model.

In the figure: 1. a needle sheath; 2. a needle core; 21. a grip; 3. saw teeth; 4. a sampling groove; 5. and (5) clamping blocks.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 2-3, the present utility model provides a technical solution: the inside of needle sheath 1 is provided with needle core 2, sampling groove 4 has been seted up to the outside of needle core 2, the inner wall of needle sheath 1 is connected with fixture block 5, and fixture block 5 joint is in the inside of sampling groove 4, needle sheath 1 cup joints the outside at needle core 2 through fixture block 5 activity, and the inner wall of needle sheath 1 is the laminating with the outer wall of needle core 2, sampling groove 4 is spiral groove structure, and the bottom of sampling groove 4 runs through to the bottom of needle core 2, and through the cooperation of the pointed end of needle core 2 bottom, when the needle core 2 gets into human tissue and carries out the living body sample that corresponds, the sample can stretch out and get into in the sampling groove 4 along with the rotation of needle core 2, through the sample of rotation mode control needle core 2, can avoid traditional grafting biopsy needle dynamics and the difficult problem of control of insertion distance, thereby the motion range is too big and degree human tissue causes the problem of injury when taking a sample, biopsy needle's sample efficiency has been improved, medical staff's operation has also been made things convenient for simultaneously, make this biopsy needle more easily go up the hand, and the top of needle core 2 is connected with 21, the needle sheath 1 can be controlled by the vertical line outside, the convenience.

Referring to fig. 1 and 4, the bottom of the needle sheath 1 is provided with saw teeth 3, the saw teeth 3 are of a saw tooth structure, the bottom of the saw teeth 3 is a pointed end, after living tissue is filled in the sampling groove 4, the needle sheath 1 is covered outside the needle core 2 by rotating the needle sheath 1, and the saw teeth 3 separate samples in the sampling groove 4 from human tissue when the needle sheath 1 rotates, so that the problem of adhesion of the samples when the biopsy needle is taken out is avoided, meanwhile, the damage to the human tissue when the biopsy needle is taken out is also reduced, the sampling efficiency of the biopsy needle is improved, and meanwhile, the biopsy needle is precisely controlled in a spiral manner, so that the sample amount can be controlled when the biopsy needle is sampled, the sampling accuracy of the biopsy needle is improved, and pathological analysis is convenient.

In summary, this interventional department is with convenient accurate efficient biopsy needle of sample, during the use, medical staff makes corresponding protection work after can begin the biopsy sample, when using the biopsy needle to carry out the biopsy sample, firstly with needle sheath 1 rotatory to the bottom of needle core 2, make the bottom of needle sheath 1 and the bottom of needle core 2 constitute a pointed end jointly, then puncture needle sheath 1 and needle core 2 to the inside of soft tissue together, realize the location before reaching the target position, then needle sheath 1 is static, rotate needle core 2 through handle 21, make needle core 2 gradually follow needle sheath 1's inside and go into the biopsy of target position in the back, biopsy tissue fills into the inside of sampling groove 4 along with the removal of needle core 2, then keep needle core 2 motionless, make needle sheath 1 to the bottom of needle core 2 remove, simultaneously 3 with the removal of needle sheath 1 with the biopsy sample in sampling groove 4 and human tissue separation, realize the needle core 2 bottom tip 3 and the time realize the location before reaching the target position, then the needle core 2 is removed from the inside and the biopsy sample is carried out to the corresponding sample of needle core 1 and is carried out the sample is cut off to the time, and the sample is taken out the sample is then is clean to the sample is taken out to the needle channel after the needle core 1 is fixed, the sample is cut off to the sample is corresponding to the sample, and the sample is then carried out the sample is taken to the sample is clean to the sample is regularly after the needle is washed, the sample is taken.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a convenient accurate efficient biopsy needle of sample for interventional department, includes needle sheath (1), its characterized in that: the inside of needle sheath (1) sets up the core (2), sampling groove (4) have been seted up to the outer wall of core (2), the inner wall of needle sheath (1) is connected with fixture block (5), the bottom of needle sheath (1) is disposed with sawtooth (3).

2. The biopsy needle of claim 1, wherein the biopsy needle is convenient, accurate and efficient to sample for interventional department, and is characterized in that: the needle sheath (1) is movably sleeved outside the needle core (2) through the clamping block (5), and vertical lines for increasing friction are arranged at the top end of the needle sheath (1).

3. The biopsy needle of claim 1, wherein the biopsy needle is convenient, accurate and efficient to sample for interventional department, and is characterized in that: the bottom end of the needle core (2) is a tip, the top end of the needle core (2) is connected with a handle (21), the handle (21) is of a flat structure, and the length of the handle (21) is one half of the total length of the needle core (2).

4. The biopsy needle of claim 1, wherein the biopsy needle is convenient, accurate and efficient to sample for interventional department, and is characterized in that: the saw teeth (3) are of a saw tooth structure with the bottom end being a tip, and the saw teeth (3) are uniformly connected to the bottom of the needle sheath (1).

5. The biopsy needle of claim 1, wherein the biopsy needle is convenient, accurate and efficient to sample for interventional department, and is characterized in that: the sampling groove (4) is arranged on the outer wall of the needle core (2), the sampling groove (4) is of a spiral groove structure, and the sampling groove (4) penetrates through the upper end and the lower end of the needle core (2).

6. The biopsy needle of claim 1, wherein the biopsy needle is convenient, accurate and efficient to sample for interventional department, and is characterized in that: the fixture block (5) is connected to the inner wall of the needle sheath (1), the fixture blocks (5) are respectively connected to two sides of the inner wall of the needle sheath (1), and the external specification of the fixture block (5) is smaller than the internal specification of the sampling groove (4).

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