CN219070420U - Tumor minimally invasive living body sampler - Google Patents

Abstract

The utility model discloses a tumor minimally invasive living body sampler which comprises a needle cylinder, wherein a sampling needle is connected in the needle cylinder in a sliding way, a sampling groove is formed in one end, close to a needle head, of the sampling needle, a limit rod is fixedly connected to the other end, far away from the needle head, of the sampling needle, a limit groove is formed in the needle cylinder, corresponding to the limit rod, a first positioning end, a second positioning end and a third positioning end are arranged on the limit groove, the first positioning end is used for sampling the sampling needle, the second positioning end is used for puncturing the sampling needle, and the third positioning end is used for sampling the sampling needle. The utility model can improve the sampling precision of tumor tissues, can realize multiple sampling by only one puncture, lightens the burden of doctors and patients and improves the sampling efficiency.

Description

Tumor minimally invasive living body sampler

Technical Field

The utility model relates to the technical field of oncology medical science, in particular to a tumor minimally invasive living body sampler.

Background

The biopsy needle is a medical instrument for sampling living tissues such as centrum tumors and unknown tumors of various organs such as kidneys, livers, lung lobes, uterus, pancreas, thyroid glands and body surfaces, and the like, and the biopsy needle is often used for puncturing soft tissues to sample because the biopsy needle is required to carry out auxiliary diagnosis and treatment on tumor focus of a patient in the diagnosis process, for example, in a tumor living tissue sampling device with high separation precision for oncology with a patent number of CN217447858U, a needle core is sleeved in a needle sheath, a sampling groove is formed in the needle core, and the needle core is ejected after the needle core is stretched into subcutaneous tissues of the patient, so that the rapid separation of the sampled tissues and the human tissues is realized, but the following problems still exist in the prior art:

1. the ejection of the needle sheath is controlled by the button and the buckle, and the ejection of the needle core is not realized by pressing the button, which is proposed in the beneficial effects, so that the needle core structure is always exposed outside the needle sheath, and the sampling tissue is peeled off by ejecting the needle sheath after the needle sheath stretches into tumor tissue, so that in the process of puncturing and stretching into soft tissue of a patient, the sampling groove can scrape part of other human tissues except tumor cells, and the purpose of improving the sampling separation precision cannot be realized;

2. the push type structure of the needle core and the needle sheath can only complete the step of extracting tissue cells once after one puncture, and in the diagnosis process, multiple sampling is often needed, the multiple sampling can be realized only by continuously repeating the puncture process, the pain of a patient and the working intensity of medical staff are greatly increased, and the aim of reducing the doctor-patient burden is not realized. Therefore, there is a need for a tumor minimally invasive biopsy sampler that solves the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide a tumor minimally invasive living body sampler, which solves the problems in the prior art, can improve the sampling precision of tumor tissues, can realize multiple sampling by only one puncture, lightens the doctor-patient burden and improves the sampling efficiency.

In order to achieve the above object, the present utility model provides the following solutions: the utility model provides a tumor minimally invasive living body sampler which comprises a needle cylinder, wherein a sampling needle is connected in the needle cylinder in a sliding way, a sampling groove is formed in one end, close to a needle head, of the sampling needle, a limit rod is fixedly connected to the other end, far away from the needle head, of the sampling needle, a limit groove is formed in the needle cylinder, corresponding to the limit rod, a first positioning end, a second positioning end and a third positioning end are arranged on the limit groove, the first positioning end is used for sampling of the sampling needle, the second positioning end is used for puncture of the sampling needle, and the third positioning end is used for sampling of the sampling needle.

Preferably, the first positioning end is a recovery groove, the recovery groove is formed in one side of the limit groove, the recovery groove is communicated with the limit groove, and when the limit rod is located in the recovery groove, the sampling groove is communicated with the outside of the needle cylinder.

Preferably, the side wall surface of the syringe is provided with a communication groove, the communication groove and the recovery groove are arranged on the same axis, and when the limit rod stretches into the recovery groove, the sampling groove is communicated with the outside of the syringe through the communication groove.

Preferably, the second positioning end is a puncture groove, the puncture groove is formed in one side, away from the recovery groove, of the limiting groove, the puncture groove is communicated with the limiting groove, when the limiting rod is located in the sampling groove, the needle extends out of the needle cylinder, and the needle cylinder seals the sampling groove.

Preferably, the third positioning end is a sampling groove, the sampling groove is formed in one side, close to the puncture groove, of the limiting groove, the sampling groove is communicated with the limiting groove, and when the limiting rod is located in the sampling groove, the sampling groove extends out of the needle cylinder.

Preferably, a cutting knife is fixedly connected to one side of the top end of the inner wall surface of the sampling groove.

Preferably, a puncture knife is fixedly connected to one end of the needle cylinder, which is close to the needle head, and the puncture knife and the needle cylinder are integrally formed.

Preferably, one end of the needle cylinder far away from the needle head is fixedly connected with a handle.

The utility model discloses the following technical effects:

through correspond setting up first locating end, second locating end and third locating end on the spacing groove that the needle cylinder was seted up, make the sample needle sample respectively, puncture and sample, establish outside the sample needle through the needle cylinder cover with its whole cladding, compared in prior art, this patent removes the gag lever post to the second locating end in the puncture in-process, utilize the needle cylinder to block the sample groove, avoid the sample groove to gather human tissue except tumor tissue in the puncture in-process, improve sampling accuracy, puncture through syringe needle and needle cylinder, remove to the third locating end at the sample in-process gag lever post, the sample needle stretches out the needle cylinder and makes the sample groove gather tumor tissue, at last the gag lever post removes to first locating end when the sample, collect the tumor tissue that the sample groove gathered, and the in-process needle cylinder is detained in the human body all the time, make things convenient for the sample needle to carry out repeated sample many times, improve sampling efficiency, alleviate doctor-patient burden.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the structure of a sampling needle in a piercing state;

FIG. 2 is a schematic diagram of the structure of the sampling needle in the sampling state;

FIG. 3 is a schematic diagram showing the structure of the sampling needle in the sampling state;

fig. 4 is a schematic view of the structure of the cylinder;

FIG. 5 is a schematic view of the structure of a sampling needle;

wherein, 1, the needle cylinder; 2. a sampling needle; 3. a needle; 4. a limit groove; 4-1, a recovery tank; 4-2, a puncture groove; 4-3, sampling groove; 5. a sampling groove; 6. a communication groove; 7. a cutting knife; 8. a piercing knife; 9. a handle; 10. and a limit rod.

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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

Referring to fig. 1-5, the utility model provides a tumor minimally invasive living sampler, which comprises a needle cylinder 1, wherein a sampling needle 2 is slidingly connected in the needle cylinder 1, a sampling groove 5 is formed in one end, close to a needle head 3, of the sampling needle 2, a limit rod 10 is fixedly connected to the other end, far away from the needle head 3, of the sampling needle 2, a limit groove 4 is correspondingly formed in the needle cylinder 1 and the limit rod 10, a first positioning end, a second positioning end and a third positioning end are arranged on the limit groove 4, the first positioning end is used for sampling of the sampling needle 2, the second positioning end is used for puncture of the sampling needle 2, and the third positioning end is used for sampling of the sampling needle 2.

According to the utility model, the sampling needle 2 is arranged in sliding connection in the needle cylinder 1, the limit rod 10 is fixedly connected on the side wall surface of the sampling needle 2, the limit groove 4 is formed corresponding to the limit rod 10, one end of the limit rod 10 extends into the limit groove 4, a medical staff conveniently dials the limit rod 10 to slide the sampling needle 2 along the limit groove 4, the sampling needle 2 is respectively subjected to sampling, puncturing and sampling by utilizing the first positioning end, the second positioning end and the third positioning end which are arranged on the limit groove 4, the needle cylinder 1 is sleeved outside the sampling needle 2 to integrally cover the sampling needle 2, the limit rod 10 is moved to the second positioning end in combination with the problems existing in the practical situation and the prior art, the needle cylinder 1 is utilized to seal the sampling groove 5, the sampling groove 5 is prevented from collecting human tissues except tumor tissues in the puncturing process, the needle cylinder 1 is prevented from puncturing, the limit rod 10 moves to the third positioning end in the sampling process, the sampling needle 2 extends out to enable the sampling groove 5 to collect tumor tissues in the sampling process, and finally the limit rod 10 moves to the first positioning end in the sampling process, the sampling needle cylinder 1 is repeatedly used for collecting tumor tissues in the sampling process, and the sampling process is always repeated, so that the sampling efficiency of the patient is improved.

According to the technical scheme, the limiting groove 4 is sequentially arranged from top to bottom according to the arrangement sequence of the first positioning end, the second positioning end and the third positioning end, the sampling needle 2 is utilized to respectively slide to the second positioning end, the third positioning end and the first positioning end along the limiting groove 4 in the needle cylinder 1, so that the sampling needle 2 correspondingly completes the process of puncturing human tissues to tumor focus, the sampling groove 5 extends to collect samples, the samples are discharged out of the needle cylinder 1 for collection, and the sampling accuracy and the sample collection efficiency are effectively improved.

Further optimizing scheme, first location end is recovery tank 4-1, and recovery tank 4-1 is offered in one side of spacing groove 4, and recovery tank 4-1 and spacing groove 4 intercommunication, and when gag lever post 10 was located recovery tank 4-1, sampling tank 5 and cylinder 1 outside intercommunication.

In a further optimized scheme, the side wall surface of the needle cylinder 1 is provided with a communication groove 6, the communication groove 6 and the recovery groove 4-1 are arranged on the same axis, and when the limit rod 10 stretches into the recovery groove 4-1, the sampling groove 5 is communicated with the outside of the needle cylinder 1 through the communication groove 6.

Referring to fig. 3, slide gag lever post 10 along gag lever post 4, when gag lever post 10 slides to retrieve in the inslot 4-1, the intercommunication groove 6 correspondence intercommunication that this moment sampling groove 5 and cylinder 1 lateral wall were offered, medical personnel directly retrieved the tumour tissue that gathers in the sampling groove 5 through intercommunication groove 6 to whole recovery process, cylinder 1 remain in human tissue, make things convenient for medical personnel to carry out repeated collection many times, effectively improve collection efficiency, and need repeated puncture in the prior art, this patent can effectively alleviate doctor-patient burden.

In one embodiment of the utility model, medical staff can use medical clamping devices such as forceps, wound hooks and the like to take out tumor tissues collected in the sampling groove 5 from the syringe 1 according to actual conditions, or use a suction tube with a suction pump to be communicated with the communicating groove 6 (not shown in the figure), one end of the sampling needle 2 with a hollow structure, which is far away from the needle head 3, is communicated with the outside of the syringe 1, so that the sampling needle 2 is matched with the sampling groove 5 to form a negative pressure suction channel, the tumor tissues collected in the sampling groove 5 are quickly taken out, the sampling efficiency is further improved, and the tumor tissues are placed in an operating tray or a freezing box to be stored, so that the pathological change mechanism of tumor lesions is analyzed.

According to the further optimization scheme, the second positioning end is a puncture groove 4-2, the puncture groove 4-2 is formed in one side, away from the recovery groove 4-1, of the limit groove 4, the puncture groove 4-2 is communicated with the limit groove 4, when the limit rod 10 is located in the sampling groove 5, the needle head 3 extends out of the needle cylinder 1, and the needle cylinder 1 seals the sampling groove 5.

Referring to fig. 1, when the limit rod 10 slides into the puncture groove 4-2, the needle cylinder 1 covers the sampling groove 5 formed on the sampling needle 2, so that the tissue at a part of non-tumor focus is prevented from being collected by exposing the sampling groove 5 during the puncture process, the collection accuracy is effectively improved, the needle head 3 of the sampling needle 2 extends out of the needle cylinder 1, the human tissue is conveniently punctured to extend into the focus of a patient, and the sampling efficiency is accelerated.

In one embodiment of the utility model, medical staff can determine the specific position of the tumor in the patient body through imaging technologies such as B-ultrasonic, X-ray machine, nuclear magnetic resonance imaging and the like, and then puncture and acquisition are carried out through the sampling needle 2 according to the tumor position determined in advance, wherein the tumor positioning imaging technologies are all the prior art and are not excessively stated.

According to a further optimization scheme, the third positioning end is a sampling groove 4-3, the sampling groove 4-3 is formed in one side, close to the puncture groove 4-2, of the limiting groove 4, the sampling groove 4-3 is communicated with the limiting groove 4, and when the limiting rod 10 is located in the sampling groove 4-3, the sampling groove 5 extends out of the needle cylinder 1.

Referring to fig. 2, when the limit rod 10 slides into the sampling groove 4-3, the sampling groove 5 formed on the sampling needle 2 extends out of the needle cylinder 1 to collect tumor tissue, and the needle cylinder 1 seals the sampling groove 5 in the puncturing process, so that the sampling groove 5 is prevented from collecting part of human tissue at a non-tumor focus, and the sampling accuracy is effectively improved.

In a further optimized scheme, a cutting knife 7 is fixedly connected to one side of the top end of the inner wall surface of the sampling groove 5.

The cutting knife 7 fixedly connected in the sampling groove 5 is used for setting the edge of the cutting knife 7 towards the recovery groove 4-1, and after the sampling needle 2 stretches into tumor tissues, the limiting rod 10 is rotated to enable the sampling needle to be separated from the sampling groove 4-3, and as the sampling groove 4-3 and the puncture groove 4-2 are positioned on the same side and are separately arranged on two sides of the limiting groove 4 with the recovery groove 4-1, the sampling needle 2 is driven to rotate through the limiting rod 10, and the cutting knife 7 rotates along with the rotation to cut and separate the tumor tissues, so that the tissue sample collection efficiency is further improved.

In a further optimized scheme, one end of the needle cylinder 1, which is close to the needle head 3, is fixedly connected with a puncture knife 8, and the puncture knife 8 and the needle cylinder 1 are integrally formed.

In a further optimized scheme, one end of the needle cylinder 1 far away from the needle head 3 is fixedly connected with a handle 9.

The needle cylinder 1 is fixedly connected with a handle 9 which is arranged on the needle cylinder 1, so that a medical staff can apply force to puncture, the sampling needle 2 is connected with the needle cylinder 1 to extend into human tissues, a puncture knife 8 is fixedly connected at one end of the needle cylinder 1, which is close to the needle head 3, and the puncture knife 8 and the needle cylinder 1 are integrally formed into an annular structure, so that the needle cylinder is convenient to be matched with the needle head 3 to puncture and extend into human bodies.

Working principle:

one end of the limit groove 4 is communicated with the outside of the needle cylinder 1, the sampling needle 2 is arranged in the needle cylinder 1 in a penetrating way, the limit rod 10 stretches into the limit groove 4 to be in sliding connection with the limit groove 4, the limit rod 10 slides into the puncture groove 4-2, the needle cylinder 1 is used for plugging the sampling groove 5, the situation that part of tissue at a non-tumor focus is exposed outside in the puncture process is avoided, the needle head 3 of the sampling needle 2 stretches out of the needle cylinder 1 to be matched with the puncture knife 8 to stretch into the tumor focus in a human body, when the needle head 3 stretches into the tumor tissue, the limit rod 10 slides into the sampling groove 4-3, the sampling groove 5 formed on the sampling needle 2 stretches out of the needle cylinder 1, and in the stretching out process, the sampling groove 5 rotates along the opening direction of the limit groove 4 under the drive of the limit rod 10, the cutting knife 7 is used for cutting and collecting the tumor tissue, and finally, the limit rod 10 slides into the recovery groove 4-1, at the moment, the sampling groove 5 is correspondingly communicated with the communication groove 6 formed on the side wall surface of the needle cylinder 1, medical staff directly recovers the tumor tissue collected in the sampling groove 5 through the communication groove 6, and the whole recovery process is convenient for the recovery of the tissue in the needle cylinder 1, and the medical staff repeatedly and the recovery process is kept in the human body tissue in the needle cylinder for a plurality of times.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims (8)

1. A tumor minimally invasive living sampler, which is characterized in that: including cylinder (1), sliding connection has sample needle (2) in cylinder (1), sample groove (5) have been seted up to the one end that sample needle (2) are close to syringe needle (3), sample needle (2) are kept away from the other end rigid coupling of syringe needle (3) has gag lever post (10), cylinder (1) with gag lever post (10) have been seted up limit groove (4) corresponding, be provided with first location end, second location end and third location end on limit groove (4), first location end is used for sample needle (2) sample, the second location end is used for sample needle (2) puncture, the third location end is used for sample needle (2) sample.

2. The tumor minimally invasive biopsy sampler of claim 1, wherein: the first positioning end is a recovery groove (4-1), the recovery groove (4-1) is formed in one side of the limit groove (4), the recovery groove (4-1) is communicated with the limit groove (4), and when the limit rod (10) is located in the recovery groove (4-1), the sampling groove (5) is communicated with the outside of the needle cylinder (1).

3. The tumor minimally invasive biopsy sampler of claim 2, wherein: the side wall surface of the needle cylinder (1) is provided with a communication groove (6), the communication groove (6) and the recovery groove (4-1) are arranged on the same axis, and when the limit rod (10) stretches into the recovery groove (4-1), the sampling groove (5) is communicated with the outside of the needle cylinder (1) through the communication groove (6).

4. The tumor minimally invasive biopsy sampler of claim 2, wherein: the second positioning end is a puncture groove (4-2), the puncture groove (4-2) is formed in one side, far away from the recovery groove (4-1), of the limit groove (4-2) and is communicated with the limit groove (4), when the limit rod (10) is located in the sampling groove (5), the needle head (3) extends out of the needle cylinder (1), and the needle cylinder (1) seals the sampling groove (5).

5. The tumor minimally invasive biopsy sampler of claim 4, wherein: the third positioning end is a sampling groove (4-3), the sampling groove (4-3) is formed in one side, close to the puncture groove (4-2), of the limiting groove (4), the sampling groove (4-3) is communicated with the limiting groove (4), and when the limiting rod (10) is located in the sampling groove (4-3), the sampling groove (5) stretches out of the needle cylinder (1).

6. The tumor minimally invasive biopsy sampler of claim 1, wherein: one side of the top end of the inner wall surface of the sampling groove (5) is fixedly connected with a cutting knife (7).

7. The tumor minimally invasive biopsy sampler of claim 1, wherein: one end of the needle cylinder (1) close to the needle head (3) is fixedly connected with a puncture knife (8), and the puncture knife (8) and the needle cylinder (1) are integrally formed.

8. The tumor minimally invasive biopsy sampler of claim 1, wherein: one end of the needle cylinder (1) far away from the needle head (3) is fixedly connected with a handle (9).

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