CN215584223U - Marrow biopsy needle - Google Patents
Marrow biopsy needle Download PDFInfo
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- CN215584223U CN215584223U CN202120155826.0U CN202120155826U CN215584223U CN 215584223 U CN215584223 U CN 215584223U CN 202120155826 U CN202120155826 U CN 202120155826U CN 215584223 U CN215584223 U CN 215584223U
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- needle
- bone marrow
- needle cavity
- cavity
- elastic sheet
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- 238000001574 biopsy Methods 0.000 title claims abstract description 21
- 210000001185 bone marrow Anatomy 0.000 claims abstract description 63
- 210000001519 tissue Anatomy 0.000 claims abstract description 46
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004308 accommodation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 206010027476 Metastases Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 208000014951 hematologic disease Diseases 0.000 description 1
- 206010028537 myelofibrosis Diseases 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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Abstract
The embodiment of the utility model provides a bone marrow biopsy needle, belonging to the technical field of biopsy instruments, and comprising: the handle is provided with a through hole which penetrates through the handle up and down; the needle body is internally provided with a vertically through needle cavity and is connected to the holding handle; one end of the needle cavity is communicated with the through hole, or the needle body is arranged in the through hole in a penetrating mode; the elastic sheet is positioned in the needle cavity, and one end of the elastic sheet is connected and arranged in the needle cavity; wherein, the spring plate can deform towards the upper part of the needle cavity, so that the spring plate and the needle cavity form a valve which can allow the marrow tissue to pass through in one way; the technical effect that the extracted bone marrow tissue is stabilized in the needle cavity is achieved.
Description
Technical Field
The utility model relates to the technical field of biopsy instruments, in particular to a bone marrow biopsy needle.
Background
Bone marrow biopsy needles are used to extract a portion of bone marrow tissue, primarily for histological typing of hematological disorders, and to diagnose cases where bone marrow metastases and myelofibrosis are not capable of extracting bone marrow fluid.
At present, when a bone marrow biopsy needle extracts bone marrow tissue, the bone marrow tissue slides off from a needle cavity easily, so that a sample cannot be obtained by one-time bone marrow puncture, and a patient needs to bear secondary pain to perform the second puncture for taking the bone marrow.
Therefore, the technical problems of the prior art are as follows: the extracted bone marrow tissue is easily slipped out of the needle lumen.
Disclosure of Invention
The embodiment of the application provides a bone marrow biopsy needle, which solves the technical problem that bone marrow tissues extracted in the prior art are easy to slip off from a needle cavity; the technical effect that the extracted bone marrow tissue is stabilized in the needle cavity is achieved.
An embodiment of the present application provides a bone marrow biopsy needle, which includes: the handle is provided with a through hole which penetrates through the handle up and down; the needle body is internally provided with a vertically through needle cavity and is connected to the holding handle; one end of the needle cavity is communicated with the through hole, or the needle body is arranged in the through hole in a penetrating mode; the elastic sheet is positioned in the needle cavity, and one end of the elastic sheet is connected and arranged in the needle cavity; the elastic sheet can deform towards the upper part of the needle cavity, so that the elastic sheet and the needle cavity form a valve which can allow the bone marrow tissue to pass through in one way.
Preferably, the elastic pieces are provided with a plurality of elastic pieces which are divided into a plurality of elastic piece groups, and adjacent elastic piece groups are vertically layered and arranged in a staggered mode.
Preferably, the force bearing area of each spring group relative to the cross section of the needle cavity is less than or equal to one half of the cross section of the needle cavity.
Preferably, the elastic pieces in each elastic piece group are arranged at equal intervals on the circumference, and the elastic piece group is left empty relative to the central part of the needle cavity so as to facilitate the entry of bone marrow tissues.
Preferably, the elastic sheet comprises a base body and a deformation part, the base body is fixedly connected with the inner wall of the needle cavity, and the deformation part is connected with the base body; the deformation part extends upwards from the base body and towards the center of the needle cavity, and an opening formed by the elastic sheet group is in a shape with a large lower part and a small upper part through the deformation part.
Preferably, the deformation portion is a sheet.
Preferably, each spring plate group comprises two spring plates, and the two spring plates are symmetrically arranged.
One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:
1. in the embodiment of the application, a deformable elastic sheet is arranged in the needle cavity to form a valve which can be pushed open by bone marrow tissues, and the bone marrow tissues cannot slip downwards after entering the valve by utilizing the limitation of the valve; solves the technical problem that the extracted bone marrow tissue is easy to slip off from the needle cavity in the prior art; the technical effect that the extracted bone marrow tissue is stabilized in the needle cavity is achieved.
2. In the embodiment of the application, a plurality of elastic sheet groups are constructed through the elastic sheets, and the bone marrow has the capacity of jacking each layer of the independent elastic sheet group but has no capacity of downwards punching the superposition limit of the plurality of elastic sheet groups by utilizing the plurality of elastic sheet groups which are arranged in a staggered manner at the upper layer and the lower layer; ensures that the bone marrow tissue can be stably limited in the needle cavity after being placed.
3. In the embodiment of the application, the stress area of the elastic sheet is limited to ensure that the bone marrow tissue is pressed strongly against the elastic sheet when the bone marrow tissue is extracted, so that the elastic sheet is pushed open to facilitate the accommodation of the bone marrow tissue in the needle cavity. On the other hand, an opening with a larger lower part and a larger upper part and a larger lower part is constructed, which is beneficial to guiding the marrow tissue to upwards prop open the shrapnel.
Drawings
FIG. 1 is a schematic axial view of a bone marrow biopsy needle according to an embodiment of the present application;
FIG. 2 is a schematic sectional view of the needle body in the embodiment of the present application;
FIG. 3 is a schematic sectional view taken along line A-A in FIG. 2;
FIG. 4 is a schematic sectional view taken along line A-A in FIG. 2;
fig. 5 is an enlarged view at B in fig. 2.
Reference numerals: 1. a grip; 11. a through hole; 2. a needle body; 21. a needle lumen; 22. a spring plate; 221. a substrate; 222. a deformation portion.
Detailed Description
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The embodiment of the application provides a bone marrow biopsy needle, a deformable elastic sheet is arranged in a needle cavity to form a valve which can be pushed open by bone marrow tissue, and the bone marrow tissue cannot slip downwards after entering the needle by the limitation of the valve; solves the technical problem that the extracted bone marrow tissue is easy to slip off from the needle cavity in the prior art; the technical effect that the extracted bone marrow tissue is stabilized in the needle cavity is achieved.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
A bone marrow biopsy needle, which is described in the attached figures 1-2 of the specification; the bone marrow biopsy needle comprises: a handle 1, a needle body 2 and a spring plate 22; wherein, the needle body 2 is connected on the holding handle 1, and the needle cavity 21 of the needle body 2 penetrates through the holding handle 1, so that the marrow tissue can be pushed out of the device from bottom to top; wherein, the spring plate 22 can be deformed toward the upper part of the needle cavity 21, so that the spring plate 22 and the needle cavity 21 form a valve allowing the bone marrow tissue to pass through in one way.
The handle 1 is provided with a through hole 11 which penetrates through the handle 1 up and down with reference to the attached figure 1 of the specification; the bottom surface of the grip 1 is connected with the needle body 2 so that a grip cavity allowing the application of force by fingers is formed between the needle body 2 and the bottom surface of the grip 1 to facilitate the manipulation of the device by a human hand.
A needle body 2, refer to the attached figures 1 and 2 of the specification; the needle body 2 is elongated to facilitate penetration into bone marrow tissue from outside the body. The needle body 2 has a vertically through needle cavity 21 therein, and the needle cavity 21 can accommodate a section of bone marrow tissue. The needle body 2 is connected to the holding handle 1; one end of the needle cavity 21 is communicated with the through hole 11, or the needle body 2 is arranged in the through hole 11 in a penetrating way.
The elastic sheet 22, the elastic sheet 22 is located in the needle cavity 21, and one end of the elastic sheet 22 is connected and arranged in the needle cavity 21; the elastic pieces 22 are provided with a plurality of elastic pieces 22, the elastic pieces 22 are divided into a plurality of elastic piece 22 groups, and the adjacent elastic piece 22 groups are layered up and down and are arranged in a staggered mode. The elastic pieces 22 in each elastic piece 22 group are arranged at equal intervals on the circumference, and the elastic piece 22 group is left empty relative to the central part of the needle cavity 21 so as to facilitate the entry of bone marrow tissue. It should be noted that, in order to make bone marrow tissue pass through the restriction of the spring pieces 22, the force-bearing area of the spring pieces 22 is limited, specifically, the force-bearing area of each spring piece 22 relative to the cross section of the needle cavity 21 is less than or equal to one half of the cross section of the needle cavity 21.
In addition, the elastic sheet 22 specifically comprises a base 221 and a deformation part 222, the base 221 is fixedly connected with the inner wall of the needle cavity 21, and the deformation part 222 is connected with the base 221; the deformation part 222 extends upwards from the base 221 and towards the center of the needle cavity 21, and the opening formed by the group of the elastic sheets 22 is in a shape with a large lower part and a small upper part through the deformation part 222. Preferably, the deformable portion 222 is a thin plate, so that the deformable portion 222 has a strong and effective deformation capability. In one embodiment, each set of resilient pieces 22 includes two resilient pieces 22, and the two resilient pieces 22 are symmetrically disposed therebetween.
The working principle is as follows:
when the needle body 2 is rotated to extract the bone marrow tissue, the bone marrow tissue pushes the deformation portion 222 of the elastic sheet 22 to be located above the elastic sheet 22 set, so that the bone marrow tissue is accommodated in the needle cavity 21. When the device is extracted from the human body, the movement of the bone marrow tissue to the lower part of the needle cavity 21 is restricted by the spring pieces 22, so that the bone marrow tissue is retained in the needle cavity 21, and the bone marrow tissue extraction work is efficiently completed.
The technical effects are as follows:
1. in the embodiment of the application, a deformable elastic sheet is arranged in the needle cavity to form a valve which can be pushed open by bone marrow tissues, and the bone marrow tissues cannot slip downwards after entering the valve by utilizing the limitation of the valve; solves the technical problem that the extracted bone marrow tissue is easy to slip off from the needle cavity in the prior art; the technical effect that the extracted bone marrow tissue is stabilized in the needle cavity is achieved.
2. In the embodiment of the application, a plurality of elastic sheet groups are constructed through the elastic sheets, and the bone marrow has the capacity of jacking each layer of the independent elastic sheet group but has no capacity of downwards punching the superposition limit of the plurality of elastic sheet groups by utilizing the plurality of elastic sheet groups which are arranged in a staggered manner at the upper layer and the lower layer; ensures that the bone marrow tissue can be stably limited in the needle cavity after being placed.
3. In the embodiment of the application, the stress area of the elastic sheet is limited to ensure that the bone marrow tissue is pressed strongly against the elastic sheet when the bone marrow tissue is extracted, so that the elastic sheet is pushed open to facilitate the accommodation of the bone marrow tissue in the needle cavity. On the other hand, an opening with a larger lower part and a larger upper part and a larger lower part is constructed, which is beneficial to guiding the marrow tissue to upwards prop open the shrapnel.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. A bone marrow biopsy needle, characterized in that it comprises:
the handle is provided with a through hole which penetrates through the handle up and down;
the needle body is internally provided with a vertically through needle cavity and is connected to the holding handle; one end of the needle cavity is communicated with the through hole, or the needle body is arranged in the through hole in a penetrating mode; and
the elastic sheet is positioned in the needle cavity, and one end of the elastic sheet is connected and arranged in the needle cavity;
the elastic sheet can deform towards the upper part of the needle cavity, so that the elastic sheet and the needle cavity form a valve which can allow the bone marrow tissue to pass through in one way.
2. The biopsy needle of claim 1, wherein the plurality of spring plates are provided and divided into a plurality of spring plate groups, and adjacent spring plate groups are layered and staggered up and down.
3. The bone marrow biopsy needle of claim 2, wherein a force-bearing area of each spring pack with respect to a cross-sectional area of the needle cavity is equal to or less than one-half of the cross-sectional area of the needle cavity.
4. The bone marrow biopsy needle of claim 2, wherein the shrapnel in each group of shrapnel groups are arranged at equal intervals on the circumference, and the group of shrapnel groups are left empty relative to the central part of the needle cavity so as to facilitate the entry of bone marrow tissue.
5. The biopsy needle of claim 2, wherein the resilient member comprises a base and a deformable portion, the base is fixedly connected to the inner wall of the needle cavity, and the deformable portion is connected to the base; the deformation part extends upwards from the base body and towards the center of the needle cavity, and an opening formed by the elastic sheet group is in a shape with a large lower part and a small upper part through the deformation part.
6. The bone marrow biopsy needle of claim 5, wherein the shape-changing portion is embodied as a sheet.
7. The bone marrow biopsy needle of claim 2, wherein each spring sheet set comprises two spring sheets, and the two spring sheets are symmetrically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120155826.0U CN215584223U (en) | 2021-01-20 | 2021-01-20 | Marrow biopsy needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120155826.0U CN215584223U (en) | 2021-01-20 | 2021-01-20 | Marrow biopsy needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215584223U true CN215584223U (en) | 2022-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120155826.0U Active CN215584223U (en) | 2021-01-20 | 2021-01-20 | Marrow biopsy needle |
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| CN (1) | CN215584223U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116549028A (en) * | 2023-07-11 | 2023-08-08 | 四川省医学科学院·四川省人民医院 | Anticoagulation bone marrow collection system |
-
2021
- 2021-01-20 CN CN202120155826.0U patent/CN215584223U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116549028A (en) * | 2023-07-11 | 2023-08-08 | 四川省医学科学院·四川省人民医院 | Anticoagulation bone marrow collection system |
| CN116549028B (en) * | 2023-07-11 | 2023-09-08 | 四川省医学科学院·四川省人民医院 | Anticoagulation bone marrow collection system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231121 Address after: 410000 Commercial Complex (including office buildings) in Block B of Kaifu Wanda Plaza, No. 589 Zhongshan Road, Tongtai Street Street, Kaifu District, Changsha City, Hunan Province 10006 Patentee after: Hunan Zhangqing Biotechnology Co.,Ltd. Address before: 315000 No.59 Liuting street, Ningbo City, Zhejiang Province Patentee before: NINGBO FIRST Hospital |