CN221254565U - A tissue sampler - Google Patents

Abstract

The utility model provides a tissue sampler, which relates to the technical field of medical devices. The tissue sampler includes a sampling barrel and an operating part installed at the upper end of the sampling barrel, the operating part is fixedly connected to the upper end of the sampling barrel, the inner cavity at the end of the sampling barrel is movably installed with an opening and closing unit, the opening and closing unit is movably installed inside the sampling barrel, the sampling barrel at the lower end is pressed into the tumor tissue by the operating part, the outer barrel is fixed by hand, the operating part is rotated to drive the rotating inner barrel to rotate, and then the driving tooth groove arranged at the lower end of the rotating inner barrel drives the rotating gear to rotate, and then drives the blade to rotate, the blade cuts the tissue, and then the sampling barrel is pulled out, which is convenient for cutting and sampling the tissue.

Description

A tissue sampler

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a tissue sampler.

Background technique

Tumor specimen collection refers to cutting tumor tissue blocks of appropriate size according to the purpose of pathological examination and the requirements of subsequent tissue experiments. Tumor tissue specimen collection is a very important part of the entire experimental process. At present, tumor tissue specimen collection generally includes preparing blank cryopreservation tubes, liquid nitrogen tanks and sampling instruments to wait for the tissue to be three-dimensional before sampling. When sampling, follow the principle of sampling from far to near the center of the tumor lesion, and take normal tissue, adjacent tumor tissue and tumor tissue specimens in turn.

During the sampling process, the tumor specimen needs to be dissected for pathological sampling, which affects the subsequent pathological examination. In addition, the use of instruments during the sampling process inevitably causes squeezing damage to the tissue, affecting the subsequent pathological examination and re-sampling, and the operation is relatively inconvenient.

Utility Model Content

The utility model aims to provide a tissue sampler, which can avoid the problem of dissecting a tumor specimen for pathological sampling, thus affecting the subsequent further pathological examination.

The utility model provides a tissue sampler, comprising:

A sampling cylinder, and an operating part installed at the upper end of the sampling cylinder, the operating part is fixedly connected to the upper end of the sampling cylinder, an opening and closing unit is movably installed in the inner cavity of the end of the sampling cylinder, and the opening and closing unit is movably installed inside the sampling cylinder;

The opening and closing unit comprises a blade rotatably mounted in the inner cavity of the sampling tube and a rotating gear mounted on the upper end of the blade. The rotating gear is fixedly connected to the blade, and the lower end is movably mounted on the lower end of the sampling tube.

In a specific embodiment, the blades are provided in multiple groups, and adjacent blades are installed in an up-and-down staggered manner.

In a specific embodiment, the sampling cylinder includes an outer cylinder and a rotating inner cylinder movably installed in the inner cavity of the outer cylinder, and a limiting ring is fixedly arranged on the outer side surface of the rotating inner cylinder, and the limiting ring is embedded in the inner cavity groove of the outer cylinder.

In a specific embodiment, the lower end of the outer cylinder is provided with an annular blade, and the bottom of the annular blade is equal to the thickness of the opening of the lower end of the outer cylinder.

In a specific implementation manner, a driving tooth groove is fixedly installed at the bottom of the inner cavity of the rotating inner cylinder, and the driving tooth groove is meshed with the rotating gear for transmission.

In a specific embodiment, the rotating gears are evenly arranged on the inner side of the bottom of the outer cylinder, the lower ends of the rotating gears are movably mounted inside the outer cylinder via connecting rods, and the inner edges of the rotating gears are arranged inside the inner edges of the outer cylinder.

In a specific embodiment, a lifting member is mounted on the outside of the sampling tube, and the lifting member is snap-fitted and installed at the lower end of the operating part.

In a specific embodiment, the lifting member includes a sliding sleeve mounted on the outside of the outer cylinder and a threaded ring movably installed at the lower end of the sliding sleeve. The threaded ring is rotatably mounted on the lower end of the sliding sleeve. A threaded portion is provided on the outer surface of the outer cylinder, and the threaded ring matches the thread of the threaded portion.

In a specific implementation manner, a positioning head is fixedly mounted on the lower end of the operating portion, and the positioning head is embedded in the inner cavity of the first clamping sleeve opened on the upper end of the sliding sleeve.

In a specific embodiment, locking pieces are fixedly installed on both sides of the upper end of the outer cylinder, the size and position of the locking pieces match the locking grooves opened on the side of the sliding sleeve, and the height of the locking pieces is greater than the opening depth of the first clamping sleeve.

The utility model provides a tissue sampler. When sampling tumor tissue, the sampling tube at the lower end is pressed into the tumor tissue through the operating part. The outer tube is fixed by hand and the operating part is turned to drive the rotating inner tube to rotate, thereby driving the driving tooth groove arranged at the lower end of the rotating inner tube to drive the rotating gear to rotate, thereby driving the blade to rotate. The blade cuts the tissue, and then the sampling tube is pulled out to facilitate the cutting and sampling of the tissue. At the same time, when the sampling tube is pulled out, the blade is in a closed state to prevent the sampled tissue from falling out. After the sampling is completed, the operating part is turned back, the blade is opened, and the tissue sample is taken out. The operation is simple and easy to use.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic diagram of the overall structure of an embodiment of the utility model.

FIG. 2 is a schematic diagram of the cross-sectional structure of the sampling tube according to an embodiment of the present utility model.

FIG3 is a schematic diagram of the installation position of the opening and closing unit of the embodiment of the utility model.

FIG. 4 is a schematic diagram of the structure of the opening and closing unit of an embodiment of the utility model.

FIG5 is an enlarged structural schematic diagram of point A in FIG1 according to an embodiment of the present utility model.

FIG. 6 is a schematic diagram of the lifting member structure of an embodiment of the utility model.

Icons: 100, sampling cylinder; 110, outer cylinder; 111, annular blade; 112, locking piece; 120, rotating inner cylinder; 121, driving tooth groove; 122, limiting ring; 130, threaded part; 200, operating part; 210, positioning head; 300, opening and closing unit; 310, blade; 320, rotating gear; 400, lifting piece; 410, sliding sleeve; 420, first clamping sleeve; 430, locking groove; 440, threaded ring.

Detailed ways

Since the distance between the dough placement plates needs to be adjusted one by one according to the usage, it is time-consuming and laborious to adjust when there are many dough placement plates, and it is inconvenient to make unified adjustments. Therefore, the inventor provides a tissue sampler after research, which is convenient and fast for sampling tumor tissue specimens, saves sampling time, has a simple structure, is easy to use, and reduces the difficulty of the operator's work, thereby solving the above defects.

In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

Please refer to Figures 1 to 4. An embodiment of the utility model provides a tissue sampler, including a sampling barrel 100, and an operating part 200 installed at the upper end of the sampling barrel 100 for easy operation and holding of the sampling barrel 100. The operating part 200 is fixedly connected to the upper end of the sampling barrel 100, and an opening and closing unit 300 for removing tissue is movably installed in the inner cavity of the end of the sampling barrel 100. The opening and closing unit 300 is movably installed inside the sampling barrel 100.

The opening and closing unit 300 includes a blade 310 rotatably installed in the inner cavity of the sampling tube 100 for cutting tissue and a rotating gear 320 installed at the upper end of the blade 310 for driving the blade 310 to rotate. The rotating gear 320 is fixedly connected to the blade 310, and the lower end is movably installed at the lower end of the sampling tube 100.

The sampling cylinder 100 includes an outer cylinder 110 and a rotating inner cylinder 120 movably installed in the inner cavity of the outer cylinder 110. A limiting ring 122 for limiting the rotating inner cylinder 120 is fixedly arranged on the outer side surface of the rotating inner cylinder 120. The limiting ring 122 is embedded in the inner cavity groove of the outer cylinder 110. A driving tooth groove 121 for driving the rotating gear 320 to rotate is fixedly installed at the bottom of the inner cavity of the rotating inner cylinder 120. The driving tooth groove 121 is meshed with the rotating gear 320 for transmission. The rotating gear 320 is evenly arranged on the inner side of the bottom of the outer cylinder 110. The lower end of the rotating gear 320 is movably installed in the inner part of the outer cylinder 110 through a connecting rod, and the inner edge of the rotating gear 320 is set within the inner edge of the outer cylinder 110.

When sampling tumor tissue, the sampling tube 100 at the lower end is pressed into the tumor tissue through the operating part 200, the outer tube 110 is fixed by hand, and the operating part 200 is turned to drive the rotating inner tube 120 to rotate, thereby driving the driving tooth groove 121 arranged at the lower end of the rotating inner tube 120 to drive the rotating gear 320 to rotate, thereby driving the blade 310 to rotate, and the blade 310 cuts the tissue, and then the sampling tube 100 is pulled out, which is convenient for cutting and sampling the tissue. At the same time, when the sampling tube 100 is pulled out, the blade 310 is in a closed state to prevent the sampled tissue from falling out. After sampling is completed, the operating part 200 is turned back, the blade 310 is opened, and the tissue sample is taken out. The operation is simple and easy to use.

A hole is formed at the upper end of the operating portion 200 , and an operating tool can be inserted into the hole to push the internal tissue out of the sampling tube 100 when necessary.

Furthermore, the blades 310 are provided in multiple groups, the blades can be arranged in an arc shape, and adjacent blades 310 are installed in an up-and-down staggered manner to avoid movement obstruction of adjacent blades 310 when the blades 310 rotate, and facilitate the rotation and opening and closing of the blades 310.

Furthermore, the lower end of the outer tube 110 is provided with an annular blade 111 for inserting and cutting the tissue part. The bottom of the annular blade 111 is equal to the opening thickness of the lower end of the outer tube 110. When the sampling tube 100 is inserted into the tissue, the annular blade 111 facilitates cutting of the sampled tissue and facilitates sampling.

Please refer to Figures 5 and 6. The outside of the sampling tube 100 is sleeved with a lifting member 400 for fixing the outer tube 110 and the rotating inner tube 120. The lifting member 400 is mounted on the lower end of the operating part 200. The lifting member 400 includes a sliding sleeve 410 sleeved on the outside of the outer tube 110 and a threaded ring 440 movably mounted on the lower end of the sliding sleeve 410 for adjusting the position of the sliding sleeve 410. The threaded ring 440 is rotatably mounted on the lower end of the sliding sleeve 410. The outer surface of the outer tube 110 is provided with a threaded portion 130 for fixing the position of the sliding sleeve 410, and the threaded ring 440 matches the thread of the threaded portion 130.

A positioning head 210 for fixing the operating part 200 is fixedly installed at the lower end of the operating part 200 . The positioning head 210 is embedded in the inner cavity of the first clamping sleeve 420 opened at the upper end of the sliding sleeve 410 . The size and shape of the first clamping sleeve 420 match those of the positioning head 210 .

Locking pieces 112 for fixing the position of the sliding sleeve 410 are fixedly installed on both sides of the upper end of the outer cylinder 110. The size and position of the locking piece 112 match the locking groove 430 opened on the side of the sliding sleeve 410. The height of the locking piece 112 is greater than the opening depth of the first clamping sleeve 420.

After the sampling tube 100 has finished sampling, the threaded ring 440 can be rotated. The threaded ring 440 is threadedly connected to the threaded portion 130. After rising, the first clamping sleeve 420 clamps the operating portion 200. At the same time, the locking piece 112 is clamped into the locking groove 430 to fix the sliding sleeve 410 to prevent the first clamping sleeve 420 from shaking. The installation is firm to prevent the blade 310 at the lower end from rotating and injuring the operator.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. A tissue sampler, comprising:

The sampling device comprises a sampling tube and an operating part arranged at the upper end of the sampling tube, wherein the operating part is fixedly connected with the upper end of the sampling tube, an opening and closing unit is movably arranged in an inner cavity of the end part of the sampling tube, and the opening and closing unit is movably arranged in the sampling tube;

The opening and closing unit comprises a blade rotatably installed in the inner cavity of the sampling tube and a rotary gear installed at the upper end of the blade, the rotary gear is fixedly connected with the blade, and the lower end of the rotary gear is movably installed at the lower end of the sampling tube.

2. The tissue sampler of claim 1, wherein the blades are provided with a plurality of sets of adjacent blades staggered up and down.

3. The tissue sampler of claim 2, wherein the sampling tube comprises an outer tube and a rotary inner tube movably mounted in the inner cavity of the outer tube, a limit ring is fixedly arranged on the outer side surface of the rotary inner tube, and the limit ring is mounted in the inner cavity groove of the outer tube in a jogged manner.

4. A tissue sampler according to claim 3 wherein the lower end of the outer barrel is provided with an annular knife edge, the bottom of which is of equal thickness to the opening in the lower end of the outer barrel.

5. The tissue sampler of claim 4, wherein the bottom of the inner cavity of the rotary inner cylinder is fixedly provided with a driving tooth socket, and the driving tooth socket is meshed with the rotary gear for transmission.

6. The tissue sampler of claim 5, wherein the rotary gears are uniformly arranged on the inner side of the bottom of the outer cylinder, the lower ends of the rotary gears are movably mounted in the outer cylinder through connecting rods, and the inner side edges of the rotary gears are arranged in the inner side edges of the outer cylinder.

7. The tissue sampler of claim 6, wherein the outer part of the sampling tube is sleeved with a lifting piece, and the lifting piece is clamped and installed at the lower end of the operation part.

8. The tissue sampler of claim 7, wherein the lifting member comprises a sliding sleeve sleeved outside the outer cylinder and a threaded ring movably mounted at the lower end of the sliding sleeve, the threaded ring is rotatably and in clamping fit with the lower end of the sliding sleeve, the outer surface of the outer cylinder is provided with a threaded portion, and the threaded ring is in threaded fit with the threaded portion.

9. The tissue sampler of claim 8, wherein a positioning head is fixedly arranged at the lower end of the operation part and is embedded in an inner cavity of a first cutting sleeve arranged at the upper end of the sliding sleeve.

10. The tissue sampler of claim 9, wherein locking pieces are fixedly arranged on two sides of the upper end of the outer barrel, the locking pieces are matched with locking grooves formed in the side faces of the sliding sleeve in size and position, and the height of the locking pieces is larger than the opening depth of the first clamping sleeve.