CN210727788U

CN210727788U - Puncture sampling device and system

Info

Publication number: CN210727788U
Application number: CN201920889076.2U
Authority: CN
Inventors: 陈骏; 崔俊祺
Original assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Current assignee: Ninth Peoples Hospital Shanghai Jiaotong University School of Medicine
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-06-12
Anticipated expiration: 2029-06-13

Abstract

The utility model relates to the field of medical equipment, especially relate to a puncture sampling device and system of multiple spot multiple depth degree. The utility model provides a puncture sampling device, including the needle body base, the needle body base includes first air cavity and first interface, first interface and first air cavity intercommunication, be equipped with pjncture needle base face on the needle body base, be equipped with a plurality of pjncture needles on the pjncture needle base face, the needle chamber of each pjncture needle all communicates with first air cavity, and the length of at least partial pjncture needle is different. The utility model provides a puncture sampling device can puncture simultaneously at different planes, a plurality of position and extract more histiocyte, provides abundanter sample tissue for later cytology pathology is confirmed to diagnose.

Description

Puncture sampling device and system

Technical Field

The utility model relates to the field of medical equipment, especially relate to a puncture sampling device and system of multiple spot multiple depth degree.

Background

Dermatology has many diseases that cannot be diagnosed directly in the clinic, and skin biopsy is needed to make a definitive diagnosis or to assist diagnosis. Particularly, skin malignant tumors are various in expression, and pathological diagnosis is the only gold standard. However, when the wound surface of the diabetic ulcer or malignant tumor is large, traditional diagnosis usually needs to take materials from multiple points, the injury is large, the efficiency is low, the wound surface is difficult to suture, and secondary infection is easy to occur. There is a clinical need for more convenient, less invasive, easy to develop and patient-acceptable means of examination that can provide more deep, reliable histological information than a dermatoscope, without the inconvenience and trauma of biopsy. The examination of the needle-pricked aspiration cells is an examination mode which can meet the requirements, and the examination can provide a cytological diagnosis basis primarily and give guidance for excision of skin tumors. If the detected cells have abnormal cells, corresponding enlarged excision can be directly carried out during excision surgery, and the biopsy frequency is reduced.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a multi-point and multi-depth puncture sampling device for solving the problems in the prior art.

In order to achieve the above objects and other related objects, one aspect of the present invention provides a puncture sampling device and system, including a needle body base, the needle body base includes a first air cavity and a first interface, the first interface communicates with the first air cavity, the needle body base is provided with a puncture needle base surface, the puncture needle base surface is provided with a plurality of puncture needles, the needle cavity of each puncture needle all communicates with the first air cavity, and the length of at least part of puncture needles is different.

In some embodiments of the present invention, the extending direction of each puncture needle is the same, and the extending direction of the puncture needle is perpendicular to the puncture needle base plane.

In some embodiments of the present invention, the puncture needles are uniformly distributed on the puncture needle base surface, and the puncture needle with the largest length dimension is located in the middle of the puncture needle base surface.

In some embodiments of the present invention, the inner diameter of the puncture needle is 0.2 to 0.3mm, the outer diameter is 0.3 to 0.4mm, the puncture base surface is circular, and the area of the puncture base surface is 0.38 to 3.14cm²。

In some embodiments of the present invention, the outer wall of the puncture needle is provided with a thread, and the extending direction of the thread is the same as the extending direction of the puncture needle.

In some embodiments of the present invention, the plurality of puncture needles includes a puncture needle with a length of 0.9-1.1 mm, a puncture needle with a length of 1.4-1.6 mm, a puncture needle with a length of 1.9-2.1 mm, a puncture needle with a length of 2.4-2.6 mm, and a puncture needle with a length of 2.9-3.1 mm.

In some embodiments of the present invention, the needle body base is cylindrical, and the first port and the puncture needle base are respectively located at both ends of the needle body base.

The utility model discloses another aspect provides a puncture sampling system, include puncture sampling device, still include gaseous extraction element, gaseous extraction element includes cavity portion of holding, be equipped with the second air cavity in the cavity portion of holding, still be equipped with the second interface on the cavity portion of holding, second air cavity and second interface intercommunication, the second interface can be dismantled with first interface and be connected.

In some embodiments of the present invention, the gas extraction device further comprises a cavity sealing member, the cavity sealing member is located in the second air cavity and is matched with the second air cavity, and the gas extraction device further comprises a stretching member, and the stretching member is connected with the cavity sealing member.

In some embodiments of the present invention, the gas extraction device further comprises a holding portion.

Drawings

Fig. 1 shows the overall structure of the present invention.

Fig. 2 shows a schematic view of the needle body base and the puncture needle of the present invention.

Fig. 3 is a schematic view of the needle body base and the puncture needle of the present invention.

Fig. 4 shows a schematic view of the gas extraction device of the present invention.

Description of the element reference numerals

1 needle body base

11 first air cavity

12 puncture needle base plane

13 first interface

2 puncture needle

21 needle cavity

22 thread

3 gas extraction device

31 second air cavity

32 second interface

33 tension member

34 cavity containing part

4 grip part

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1 to 4. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

The utility model discloses a first aspect provides a puncture sampling device, as shown in fig. 1 ~ 3, including needle body base 1, needle body base 1 includes first air cavity 11 and first interface 13, first interface 13 and first air cavity 11 intercommunication, be equipped with pjncture needle base face 12 on the needle body base 1, be equipped with a plurality of pjncture needles 2 on the pjncture needle base face 12, the needle chamber 21 of each pjncture needle 2 all communicates with first air cavity 11, and at least partial pjncture needle 2's length is different. The utility model discloses a pjncture needle 2 that differs in length, when the pjncture needle 2 that needle body base 1 will puncture on the needle base face 12 pushed into the sampling position of testee, can provide the negative pressure through first air cavity 11, because the one end of needle chamber 21 all communicates with first air cavity 11, the other end is located the needle point, so different needle positions, the skin damage tissue cell of the different degree of depth can be inhaled in the needle chamber 21 through the negative pressure, can extract the pjncture needle afterwards, and provide pressure in to first air cavity 11, thereby can release the cell sample in the needle chamber 21 (for example, subcutaneous mole cell or tumor cell etc.), and place suitable cell and preserve liquid, so that further subsequent processing.

The utility model provides an among the puncture sampling device, as shown in fig. 2 ~ 3, first air cavity 11 is arranged in needle body base 1 usually, and the needle chamber 21 of each pjncture needle 2 all communicates with first air cavity 11 to can extract the air in the needle chamber 21 or with the air propelling movement in the needle chamber 21. The needle base 12 is generally planar so that the needle extends sufficiently into the tissue during penetration and presses against the skin to a precise needle depth. In a preferred embodiment of the present invention, the needle body base 1 is a cylindrical shape having a hollow inner cavity, and more preferably a cylindrical shape, the hollow inner cavity is the first air cavity 11, the first interface 13 and the puncture needle base 12 are respectively located at two ends of the needle body base 1, one end of the cylindrical shape is open, and the opening is the first interface 13.

The utility model provides an among the puncture sampling device, as shown in fig. 2 ~ 3, be equipped with pjncture needle base face 12 on the needle body base 1, the bottom and the pjncture needle base face 12 of pjncture needle 2 are connected, and the extending direction of each pjncture needle 2 is unanimous usually to insert the tissue during the sample. In a preferred embodiment of the present invention, the puncture needle 2 extends perpendicular to the puncture needle base 12, and when the puncture needle base 12 contacts the tissue surface, it indicates that each puncture is madeThe lancet 2 has been fully inserted into the tissue. The puncture needle base surface 12 may be circular, and the area thereof may be generally 0.38 to 3.14cm²So that a cell sample in a suitable area of tissue can be obtained. The puncture needle base surface 12 is provided with a plurality of puncture needles 2, the size of the puncture needles 2 in the length direction (which is consistent with the extending direction of the puncture needles 2) is usually different in length, generally speaking, the puncture needles 2 with a plurality of lengths can be distributed in the length range of 0.8-3.5 mm, the length size is preferably uniformly distributed, the length size exceeds the thickness of normal skin epidermis, and when the puncture needles are inserted into tissues, tissue samples of epidermis and partial dermis skin damage can be obtained. In a preferred embodiment of the present invention, the puncture needle base surface 12 may be provided with a puncture needle with a length of 0.9-1.1 mm, a puncture needle with a length of 1.4-1.6 mm, a puncture needle with a length of 1.9-2.1 mm, a puncture needle with a length of 2.4-2.6 mm, and a puncture needle with a length of 2.9-3.1 mm. The puncture needles 2 are typically evenly distributed over the puncture needle base 12 to obtain cell samples at different needle locations. In a preferred embodiment of the present invention, four puncture needles are circumferentially distributed on the puncture needle base surface 12, one puncture needle is distributed in the center of the puncture needle base surface 12, and the length of the puncture needle located in the middle part is usually longer to facilitate the stability of each puncture needle when inserting into the tissue. The inner diameter of the puncture needle 2 (i.e. the diameter of the needle cavity 21) generally corresponds to the sample to be obtained, and the outer diameter can be reduced as much as possible while keeping the needle body to have suitable rigidity, for example, the inner diameter of the puncture needle 2 can be 0.2-0.3 mm, and the outer diameter can be 0.3-0.4 mm. The outer wall of the puncture needle 2 is provided with threads 22, the extending direction of the threads 22 is consistent with the extending direction of the puncture needle 2, so that more tissue cells can be obtained, and the distance between every two adjacent threads can be 0.3-0.5 mm, so that the needle body can be smoothly inserted into and pulled out of tissues.

The utility model discloses the second aspect provides a puncture sampling system, as shown in fig. 1 ~ 4, include the utility model discloses the puncture sampling device that the first aspect provided still includes gaseous extraction element 3, gaseous extraction element 3 can include cavity portion of holding 34, can be equipped with second air cavity 31 in the cavity portion of holding 34, can also be equipped with second interface 32 on the cavity portion of holding 34, second air cavity 31 and second interface 32 intercommunication, second interface 32 can be dismantled with first interface 13 and be connected, and zonulae occludens usually between the interface to prevent the gas leakage. The gas extraction device 3 is typically used to provide negative or positive pressure through the second gas chamber 31 and the second port 32, and since the second port 32 is connected to the first port 13, the first port 13 is in turn in communication with the first gas chamber 11, so that positive or negative pressure can be provided to the first gas chamber 11 through the gas extraction device 3. The utility model discloses an in the preferred embodiment, first interface 13 can cup joint on second interface 32 to convenient the dismantlement, the external diameter of second interface 32 is 1.5 ~ 2cm, and the inner wall of first interface 13 closely laminates with the outer wall of second interface 32.

The utility model provides an among the puncture sampling system, gas extraction element 3 can also include the cavity sealing member (not shown in the figure) with second air cavity 31 matched with, and the cavity sealing member closely laminates with the inner wall of second air cavity 31 usually, can form the export and only be the cavity of second interface 32, and the cavity sealing member can be followed second air cavity 31 inner wall and slided to can provide malleation or negative pressure through second interface 32. And a stretching member 33, wherein the stretching member 33 is connected with the cavity sealing member, and the connection position is usually positioned on the outer wall of the cavity sealing member, so that the cavity sealing member can be driven to slide in the second air cavity 31 to provide positive pressure or negative pressure for the second air cavity 31, and further provide positive pressure or negative pressure for the first air cavity 11 through the second connector 32 and the first connector 13. In a preferred embodiment of the present invention, the second air chamber 31 has a cylindrical shape, preferably a cylindrical shape, and the inner diameter may be 0.8 to 1.2 cm. In another preferred embodiment of the present invention, the stretching member 33 comprises a stretching rod and a handle, one end of the stretching rod is connected to the cavity sealing member, and the other end is connected to the handle. In another preferred embodiment of the present invention, a holding portion 4 may be further disposed on the gas extraction device 3 for an operator to hold.

The utility model provides a puncture sampling device and puncture sampling system, can be in the different planes, a plurality of positions puncture simultaneously and extract more histocyte, confirm to diagnose for cytology pathology later and provide abundanter sample tissue, many degree of depth cytology samples can avoid different skin swelling thing if skin surface oozes the scab, the ulcer, perhaps the cell that can not inhale needs that skin swelling thing surface height uneven leads to, and can avoid unnecessary skin damage area, the problem of single level and smooth pjncture needle being difficult to the accurate collection swelling thing cell as much as possible has been solved, good industrialization prospect has.

To sum up, the utility model discloses various shortcomings in the prior art have effectively been overcome and high industry value has.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a puncture sampling device, its characterized in that, includes needle body base (1), needle body base (1) includes first air cavity (11) and first interface (13), first interface (13) and first air cavity (11) intercommunication, be equipped with pjncture needle base face (12) on needle body base (1), be equipped with a plurality of pjncture needles (2) on pjncture needle base face (12), needle chamber (21) of each pjncture needle (2) all communicate with first air cavity (11), and the length of at least partial pjncture needle (2) is different.

2. A puncture sampling device according to claim 1, characterized in that the puncture needles (2) extend in the same direction, the puncture needles (2) extending in a direction perpendicular to the puncture needle base surface (12).

3. A puncture sampling device according to claim 1, characterized in that the puncture needles (2) are evenly distributed on the puncture needle base surface (12), and the puncture needle with the largest length dimension is located in the middle of the puncture needle base surface (12).

4. The puncture sampling device according to claim 1, wherein the puncture needle (2) has an inner diameter of 0.2 to 0.3mm and an outer diameter of 0.3 to 0.4mm, the puncture needle base surface (12) is circular, and the puncture needle base surface (12) has an area of 0.38 to 3.14cm²。

5. A puncture sampling device according to claim 1, characterized in that the puncture needle (2) is provided with a thread (22) on its outer wall, and the thread (22) extends in the same direction as the puncture needle (2).

6. The puncture sampling device according to claim 1, wherein the plurality of puncture needles (2) include a puncture needle having a length of 0.9 to 1.1mm, a puncture needle having a length of 1.4 to 1.6mm, a puncture needle having a length of 1.9 to 2.1mm, a puncture needle having a length of 2.4 to 2.6mm, and a puncture needle having a length of 2.9 to 3.1 mm.

7. The lancing sampling device of claim 1, wherein the needle body base (1) is cylindrical and the first hub (13) and the lancing needle base (12) are located at opposite ends of the needle body base (1).

8. A puncture sampling system, comprising the puncture sampling device according to any one of claims 1 to 7, and further comprising a gas extraction device (3), wherein the gas extraction device (3) comprises a cavity housing (34), a second air chamber (31) is arranged in the cavity housing (34), a second interface (32) is further arranged on the cavity housing (34), the second air chamber (31) is communicated with the second interface (32), and the second interface (32) is detachably connected with the first interface (13).

9. The piercing sampling system of claim 8, characterized in that the gas extraction device (3) further comprises a cavity seal located in the second gas chamber (31) and cooperating with the second gas chamber (31), and a pulling member (33), the pulling member (33) being connected to the cavity seal.

10. The piercing sampling system according to claim 8, characterized in that a grip (4) is provided on the gas extraction device (3).