Sampler for operation

Abstract

The utility model discloses a surgical sampler which comprises a sampling shell, a sampling knife and a sampling rod assembly, a mounting cavity is arranged in the sampling shell, one end of the sampling shell is an operating end, the other end of the sampling shell is a sampling end, the sampling knife is arranged at the sampling end, and the sampling rod assembly comprises a sampling rod and a pushing piece. The sampling rod is movably arranged in the mounting cavity in a penetrating manner, and one end of the sampling rod extends out of the operating end and is connected with a pushing sheet; the pushing piece is used for pushing the sampling rod when being stressed, so that the other end of the sampling rod extends out of the sampling end and is in sliding fit with the inner wall of the sampling knife, and a sample on the sampling knife is scraped off. According to the sampler for the operation, sampling can be carried out through the sampling knife, then the sampling rod is pushed, a sample on the sampling knife is scraped off, and the sampling operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of surgical medical devices, in particular to a surgical sampler. Background Art

[0002] At present, the samplers used in surgery are mainly used to sample the excised lesion tissues during surgery, and then transfer the obtained samples to a sample bag for pathological analysis of the samples. However, in the existing samplers, usually after sampling, the samples are transferred to the sample bag by structures such as a scraper, and the samples need to be operated twice, which is inconvenient to operate and is likely to cause sample contamination. Summary of the Utility Model

[0003] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a surgical sampler, which can sample through a sampling knife, and then push a sampling rod to scrape the sample on the sampling knife, and the sampling operation is convenient.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] A surgical sampler includes a sampling housing, a sampling knife and a sampling rod assembly. An installation cavity is provided in the sampling housing. One end of the sampling housing is an operation end, and the other end of the sampling housing is a sampling end. The sampling knife is arranged at the sampling end. The sampling rod assembly includes a sampling rod and a pushing piece. The sampling rod is movably arranged through the installation cavity. One end of the sampling rod extends out from the operation end and is connected with the pushing piece. The pushing piece is used to push the sampling rod when being stressed, so that the other end of the sampling rod extends out through the sampling end and is in sliding fit with the inner wall of the sampling knife to scrape the sample on the sampling knife.

[0006] Further, the sampling knife is an annular sampling knife. An insertion cavity is formed inside one end of the annular sampling knife. The other end of the annular sampling knife is an annular cutting edge. A sampling cavity is surrounded by the inner wall of the annular cutting edge. The sampling cavity is communicated with the insertion cavity. The sampling rod moves through the insertion cavity to the inner wall of the annular cutting edge, and scrapes and pushes out the sample in the sampling cavity.

[0007] Further, the inner wall of the annular cutting edge is provided with an inclined surface. The inclined surface gradually inclines outwards from near the sampling end to far away from the sampling end.

[0008] Further, a first plugging head is arranged at the sampling end. The first plugging head is inserted into the sampling end. A movable through hole is provided in the first plugging head. The annular sampling knife is inserted into the movable through hole. The movable through hole corresponds to the sampling rod and is provided for the sampling rod to movably pass through.

[0009] Further, a second plugging head is provided at the operating end. The second plugging head is provided with a through hole, and the sampling rod passes through the through hole.

[0010] Further, both the first plugging head and the second plugging head are made of silica gel material.

[0011] Further, an elastic member is provided in the installation cavity. A force-bearing step is provided on the part of the sampling rod passing through the installation cavity. One end of the elastic member abuts against the force-bearing step, and the other end of the elastic member abuts against the bottom wall of the installation cavity. The elastic member is used to provide an elastic stress for driving the sampling rod to extend from the operating end.

[0012] Further, the elastic member is a spring, and the spring is sleeved outside the sampling rod.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] After the sampling knife cuts the sample, a person can push the pushing piece at the operating end of the sampling housing. After the pushing piece is stressed, it moves towards the sampling end, and then drives the connected sampling rod to move towards the sampling end inside the installation cavity. The sampling rod extends from the sampling end and slides and scrapes against the inner wall of the sampling knife to scrape and transfer the sample on the sampling knife into the sample bag. In this way, after the sampling knife samples, there is no need to use a scraper to scrape and transfer the sample separately. Only by pushing the sampling rod inside the sampling housing can the sampling operation be convenient and the secondary pollution during the sample transfer process be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the sampler of the present utility model;

[0016] Figure 2 is a sectional view of the sampler of the present utility model;

[0017] Figure 3 is a schematic structural diagram of the sampling knife of the present utility model;

[0018] Figure 4 is a schematic structural diagram of the first plugging head of the present utility model.

[0019] In the figure: 10, sampling housing; 11, first plugging head; 111, movable through hole; 12, second plugging head; 20, annular sampling knife; 21, annular cutting edge; 211, inclined surface; 31, sampling rod; 311, force-bearing step; 32, pushing piece; 33, elastic member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, in combination with the drawings and specific embodiments, the present utility model will be further described:

[0021] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0023] As Figures 1 - 4 shown, a surgical sampler includes a sampling housing 10, a sampling knife, and a sampling rod 31 assembly. An installation cavity is provided in the sampling housing 10. One end of the sampling housing 10 is an operation end, and the other end is a sampling end. The above-mentioned sampling knife is arranged at the sampling end. Specifically, the sampling rod 31 assembly includes a sampling rod 31 and a pushing piece 32. The sampling rod 31 is movably inserted through the installation cavity, and the sampling rod 31 can move axially with respect to the sampling housing 10. One end of the sampling rod 31 extends out from the operation end and is connected with a pushing piece 32. When the pushing piece 32 is stressed, it pushes the sampling rod 31 and drives the other end of the sampling rod 31 to extend out through the sampling end. After the sampling rod 31 extends out through the sampling end, it slides and cooperates with the inner wall of the sampling knife to scrape the sample on the sampling knife.

[0024] Based on the above structure, when using the surgical sampler of the present utility model for sampling, during sampling, the sampling housing 10 of the sampler can be held by hand to insert the sampling knife at the sampling end into the diseased tissue excised during the operation. The sampling knife can take out the diseased tissue. After the sampling knife cuts the sample, a person can push the pushing piece 32 at the operation end of the sampling housing 10. The pushing piece 32 moves towards the sampling end after being stressed, and then drives the connected sampling rod 31 to move towards the sampling end inside the installation cavity. The sampling rod 31 extends out from the sampling end and slides and scrapes against the inner wall of the sampling knife to scrape and transfer the sample on the sampling knife into the sample bag. In this way, after the sampling knife samples, there is no need to use a scraper to scrape and transfer the sample separately. It only needs to push the sampling rod 31 inside the sampling housing 10. In this way, the sampling operation is convenient and the secondary pollution during the sample transfer process is reduced.

[0025] Further, the sampling knife in this embodiment is an annular sampling knife 20. One end of the annular sampling knife 20 forms a through-connection cavity inside, and the other end of the annular sampling knife 20 is an annular cutting edge 21. The inner wall of the annular cutting edge 21 encloses a sampling cavity, and the sampling cavity enclosed by the annular cutting edge 21 communicates with the through-connection cavity at the other end of the annular sampling knife 20. After the above-mentioned sampling rod 31 extends out through the sampling end, it can move through the through-connection cavity to the inner wall of the annular cutting edge 21, and scrape and push out the sample in the sampling cavity.

[0026] Based on this structure, when the sampler takes a sample, hold the sampling housing 10 by hand, so that the annular sampling knife 20 at the sampling end of the sampling housing 10 can be inserted into the lesion tissue. Then, the annular cutting edge 21 can be inserted into the lesion tissue in a ring shape to perform resection around the lesion tissue, and the resected sample can enter the sampling cavity enclosed by the annular cutting edge 21. After that, by pushing the sampling rod 31, the sampling rod 31 extends into the through-connection cavity of the annular sampling knife 20 and pushes towards the sampling cavity to push out the sample inside the annular cutting edge 21.

[0027] Further, the inner wall of the above-mentioned annular cutting edge 21 is provided with an inclined surface 211, and the inclined surface 211 gradually inclines outward from the near-sampling end to the far-sampling end. In this way, when sampling, since the inside of the annular cutting edge 21 is the inclined surface 211 and gradually inclines outward from the near-sampling end to the far-sampling end, the thickness of the end of the annular cutting edge 21 far from the sampling end is thinner, making it sharper when piercing into the sample, easier to sample, and when the sampling rod 31 is pushed to the sampling cavity, the sample can also be guided by the inclined surface 211 and is easier to export.

[0028] Further, a first plugging head 11 can also be provided at the sampling end. The first plugging head 11 is inserted into the sampling end, and an activity through-hole 111 is provided inside the first plugging head 11. In this way, the annular sampling knife 20 can be inserted into the activity through-hole 111. The activity through-hole 111 corresponds to the sampling rod 31, and the sampling rod 31 can move through the activity through-hole 111 to the through-connection cavity of the annular cutting edge 21.

[0029] When assembling the annular sampling knife 20, the annular sampling can be inserted into the activity through-hole 111, and then the first plugging head 11 is inserted into the sampling end of the sampling housing 10, which can block the installation cavity at the sampling end, so as to facilitate the disassembly, cleaning and reassembly of the sampling knife. After assembly, when the sampling rod 31 is pushed towards the sampling end, the sampling rod 31 passes through the activity through-hole 111 and extends into the through-connection cavity to push out the sample in the sampling cavity.

[0030] Further, a second plugging head 12 is provided at the operation end. The second plugging head 12 is provided with a through-hole, and the sampling rod 31 passes through the through-hole. In this way, the second plugging head 12 can block the installation cavity at the operation end of the sampling housing 10, and the sampling rod 31 can be operated by extending through the through-hole.

[0031] Of course, both the first plug 11 and the second plug 12 are made of silica gel material. In this way, the first plug 11 and the second plug 12 can be sealed with silica gel material, so that the sealing performance inside the installation cavity is relatively good.

[0032] Further, an elastic member 33 is provided in the installation cavity. A force-bearing step 311 is provided on the part of the sampling rod 31 passing through the installation cavity. Specifically, one end of the elastic member 33 abuts against the force-bearing step 311, and the other end of the elastic member 33 abuts against the bottom wall of the installation cavity. The elastic member 33 is used to provide an elastic stress for driving the sampling rod 31 to extend from the operation end. When the pushing piece 32 of the sampling rod 31 is stressed, the sampling rod 31 is pushed to move towards the sampling end. At this time, the elastic member 33 is compressed. After the sampling rod 31 pushes out the sample and the applied pushing force is removed, the elastic member 33 resets at this time, and the provided elastic stress can apply force to the force-bearing step 311, so that the sampling rod 31 resets, realizing the automatic reset of the sampling rod 31.

[0033] Further, the elastic member 33 is a spring, and the spring is sleeved outside the sampling rod 31. In this way, when the spring expands and contracts, it is axially guided by the sampling rod 31, preventing the spring from wobbling during the expansion and contraction process, so that the provided elastic stress is more stable.

[0034] For those skilled in the art, various corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all these changes and deformations should fall within the protection scope of the claims of the present utility model.

Claims

1. A surgical sampler, characterized in that, It includes a sampling housing, a sampling knife and a sampling rod assembly. An installation cavity is provided inside the sampling housing. One end of the sampling housing is an operation end, and the other end of the sampling housing is a sampling end. The sampling knife is arranged at the sampling end. The sampling rod assembly includes a sampling rod and a pushing piece. The sampling rod is movably inserted through the installation cavity. One end of the sampling rod extends out from the operation end and is connected with the pushing piece. The pushing piece is used to push the sampling rod when stressed, so that the other end of the sampling rod extends out through the sampling end and slides in cooperation with the inner wall of the sampling knife to scrape off the sample on the sampling knife.

2. The surgical sampler according to claim 1, characterized in that, The sampling knife is an annular sampling knife. An insertion cavity is formed inside one end of the annular sampling knife. The other end of the annular sampling knife is an annular blade. The inner wall of the annular blade encloses a sampling cavity. The sampling cavity communicates with the insertion cavity. The sampling rod moves through the insertion cavity to the inner wall of the annular blade and scrapes off and pushes out the sample in the sampling cavity.

3. The surgical sampler according to claim 2, characterized in that, The inner wall of the annular blade is provided with an inclined surface. The inclined surface gradually inclines outward from near the sampling end to far from the sampling end.

4. The surgical sampler according to claim 2, characterized in that, The sampling end is provided with a first plugging head which is inserted into the sampling end. A movable through hole is provided inside the first plugging head. The annular sampling knife is inserted into the movable through hole. The movable through hole corresponds to the sampling rod and allows the sampling rod to movably pass through.

5. The surgical sampler according to claim 4, characterized in that, The operation end is provided with a second plugging head which is provided with a through hole. The sampling rod passes through the through hole.

6. The surgical sampler according to claim 5, characterized in that, Both the first plugging head and the second plugging head are made of silica gel material.

7. The surgical sampler according to any one of claims 1-6, characterized in that, An elastic component is provided inside the installation cavity. A stress step is provided on the part of the sampling rod inserted in the installation cavity. One end of the elastic component abuts against the stress step, and the other end of the elastic component abuts against the bottom wall of the installation cavity. The elastic component is used to provide an elastic stress that drives the sampling rod to extend out from the operation end.

8. The surgical sampler according to claim 7, wherein, The elastic component is a spring, and the spring is sleeved outside the sampling rod.

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