CN113855098B - Leakage-proof bone biopsy device - Google Patents
Leakage-proof bone biopsy device Download PDFInfo
- Publication number
- CN113855098B CN113855098B CN202111170818.4A CN202111170818A CN113855098B CN 113855098 B CN113855098 B CN 113855098B CN 202111170818 A CN202111170818 A CN 202111170818A CN 113855098 B CN113855098 B CN 113855098B
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- Prior art keywords
- barrel
- piston plate
- handle
- air pipe
- cylinder body
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- 238000007470 bone biopsy Methods 0.000 title claims abstract description 17
- 238000009423 ventilation Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 38
- 241000561734 Celosia cristata Species 0.000 claims description 3
- 210000001520 comb Anatomy 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims 4
- 210000003437 trachea Anatomy 0.000 claims 4
- 238000010030 laminating Methods 0.000 claims 1
- 238000005070 sampling Methods 0.000 abstract description 13
- 239000007788 liquid Substances 0.000 abstract description 11
- 210000001519 tissue Anatomy 0.000 abstract description 8
- 210000000988 bone and bone Anatomy 0.000 abstract description 4
- 208000018084 Bone neoplasm Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000001575 pathological effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001574 biopsy Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003902 lesion Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/025—Pointed or sharp biopsy instruments for taking bone, bone marrow or cartilage samples
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B10/00—Other methods or instruments for diagnosis, e.g. instruments for taking a cell sample, for biopsy, for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements
- A61B10/02—Instruments for taking cell samples or for biopsy
- A61B10/0233—Pointed or sharp biopsy instruments
- A61B10/0283—Pointed or sharp biopsy instruments with vacuum aspiration, e.g. caused by retractable plunger or by connected syringe
Abstract
The invention discloses a leakage-proof bone biopsy device which comprises a round barrel, a handle arranged at the upper end of the barrel, a serrated cutter arranged at the lower end of the barrel, and left and right vertical ventilation grooves arranged at the circumferential upper side of the barrel, wherein a columnar rubber bag is arranged at the lower side of an inner cavity of the barrel, the upper end and the lower end of the rubber bag are fixed on the barrel, and an inflatable cavity is formed between the rubber bag and the barrel. The inflatable cavity is connected with a hard air pipe with an upper end opening vertically upwards, the air pipe is fixed on the inner wall of the cylinder body, and the air pipe can drive an inner side sample to rotate to avoid sliding when the cylinder body rotates, and the inflatable device further comprises an inflatable mechanism for inflating the air pipe. The barrel is inserted for sampling, when the barrel is inserted, bone tissue can squeeze the second piston plate to promote the second piston plate to move upwards, if the barrel is inserted easily, or the handle is not moved so much, so that more liquid tissue is indicated, and the pull handle can be pulled in an auxiliary mode.
Description
Technical Field
The invention relates to the field of leakage-proof bone biopsy devices, in particular to a leakage-proof bone biopsy device.
Background
For bone biopsy, a cylindrical sampling tube is inserted after opening a hole in the skin, and the sampling tube is inserted into a lesion site by applying force from the outside. However, the actual sampling process finds that the pathological bone tumor tissue is not a pure solid tissue, and is easy to leak in the sampling process, so that the problem of how to avoid the leakage of the pathological bone tumor tissue during the biopsy of the bone tumor and improve the extraction rate of the sample is urgently needed to be solved by the technicians in the field.
Disclosure of Invention
The invention aims to provide a leakage-proof bone biopsy device, which solves the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a leak protection bone biopsy device, includes circular shape barrel, sets up the handle in the barrel upper end, sets up at the cutter of the cockscomb structure of barrel lower extreme and sets up two vertical ventilation slots about barrel circumference upside, the inner chamber downside of barrel is provided with columnar rubber bag, and the upper and lower end of rubber bag is fixed on the barrel, form the inflatable chamber that fills between rubber bag and the barrel.
The inflatable cavity is connected with a hard air pipe with an upper end opening vertically upwards, the air pipe is fixed on the inner wall of the cylinder body, and the air pipe can drive an inner side sample to rotate to avoid sliding when the cylinder body rotates, and the inflatable device further comprises an inflatable mechanism for inflating the air pipe.
Preferably, at least two air pipes are symmetrically arranged.
Preferably, the inflating mechanism comprises a sealing ring fixed on the upper side of the air pipe in the cylinder, an air inlet gap is reserved between the sealing ring and the upper end of the air pipe, a guide pipe with an upper end opening, the middle part of the sealing ring is inserted and connected with the upper end opening, the guide pipe is sleeved with a fitting cylinder body and a first air pipe piston plate, the first piston plate is positioned on the lower side of the sealing ring, the lower end of the first piston plate is provided with a first sealing gasket for sealing, the lower end bottom of the guide pipe is provided with a second piston plate, the lower end of the second piston plate is provided with a second sealing gasket for sealing, an air inlet hole is formed in the lower side of the circumference of the guide pipe, a sampling distance, which moves upwards when a sucked sample is reserved between the second piston plate and the first piston plate, an inflating distance for inflating rubber bags is reserved between the first piston plate and the sealing ring, and the inflating mechanism is connected with the upper end of the guide pipe, and the inflating mechanism is convenient to pull upward.
Preferably, the cylinder protrudes outwards to form a containing groove which is convenient for containing the rubber bag.
Preferably, the handle mechanism comprises a guide block fixedly sleeved at the circumferential upper end of the guide pipe, the guide block is matched with the vent groove in shape, and a handle convenient for hand pulling is connected after the guide block extends out of the vent groove from the left side and the right side.
Preferably, the upper sides of the front wall and the rear wall of the ventilation groove are provided with limit grooves capable of supporting the guide blocks after rotation, and the guide pipes are rotationally connected with the second piston plate.
Preferably, the inner side of the bottom of the inner cavity of the limit groove is concaved downwards to form a triangular clamping part, and the left side and the right side of the lower end of the guide block are provided with clamping grooves corresponding to the clamping parts.
Compared with the prior art, the invention has the beneficial effects that:
1. the barrel is inserted for sampling, when the barrel is inserted, bone tissue can squeeze the second piston plate to promote the second piston plate to move upwards, if the insertion is easier, or the handle is not moved so much, the liquid tissue is relatively more, the handle can be pulled in an auxiliary way, the handle is rotated, the barrel rotates, and a hard air pipe drives the sample to rotate, so that the bottom is twisted off, and if the liquid is in a liquid state, the liquid is more convenient;
2. after sampling, pulling up the handle, if the handle is not pulled, the handle can be pulled outwards directly, if the handle is pulled to indicate that the liquid state is relatively large, the handle can also feel that the barrel is inserted, the handle drives the guide tube to move upwards, the second piston plate is driven to move upwards continuously, then the second piston plate contacts the first sealing gasket and the first piston plate at the upper side, so that the first piston plate is driven to move upwards, the upper side cavity gas is driven to compress, then the air pipe is inflated, the rubber bag is driven to inflate, the second piston plate is similar to a syringe, the sample is driven to move upwards, and meanwhile, the rubber bag is inflated and sealed, so that the handle and the rubber bag move upwards simultaneously, and the sealing is more convenient than the sealing when the handle is moved upwards firstly, and the handle is driven to be realized by pulling the handle, so that the handle is simple and convenient;
3. after the guide block is pulled to the limit groove, the handle is rotated, and the guide block is clamped into the limit groove, so that the rubber bag is in an inflated state, and the clamping part and the clamping groove are arranged, so that the anti-skid effect is improved, and the rubber bag is more complete.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a bottom view of the present invention;
FIG. 5 is a left side view of the present invention;
FIG. 6 is a first isometric view of the invention;
FIG. 7 is a second axial side view of the present invention;
FIG. 8 is a first exploded view of the present invention;
FIG. 9 is a second exploded view of the present invention;
fig. 10 is a third exploded view of the present invention.
In the figure: 1. a cylinder; 11. a handle; 12. a cutter; 13. a vent groove; 2. a rubber bag; 21. an air pipe; 22. a seal ring; 23. a guide tube; 24. a first piston plate; 25. a first gasket; 26. a second piston plate; 27. a second gasket; 28. an air inlet hole; 29. a receiving groove; 3. a guide block; 31. a handle; 32. a limit groove; 33. an engagement portion; 34. a clamping groove.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 10, the present invention provides a technical solution of a leakage-proof bone biopsy device: the utility model provides a leak protection bone biopsy device, includes circular cylinder 1, sets up the handle 11 in cylinder 1 upper end, sets up at the cutter 12 of the cockscomb structure of cylinder 1 lower extreme and set up two vertical ventilation slots 13 about cylinder 1 circumference upside, and the inner chamber downside of cylinder 1 is provided with columnar rubber bag 2, and the upper and lower extreme of rubber bag 2 is fixed on cylinder 1, forms the inflatable chamber between rubber bag 2 and the cylinder 1.
The inflatable cavity is connected with a hard air pipe 21 with an upper end opening vertically upwards, the air pipe 21 is fixed on the inner wall of the cylinder body 1, and when the cylinder body 1 rotates, the air pipe 21 can drive an inner side sample to rotate so as to avoid sliding, and the inflatable device further comprises an inflatable mechanism for inflating the air pipe 21. After the sample is filled into the cylinder 1, the air inflation mechanism is used for inflating, the rubber bag 2 is inflated, the bottom is slowly closed, and the sealing is not a hundred percent, but the sealing can ensure that most of the sample is present, and the sealing is enough. At least two air pipes 21 are symmetrically arranged, more than two air pipes are convenient for symmetrically applying force, two air pipes are more preferably inverted to three air pipes, and the inner space of the cylinder body 1 is reduced too much. The air pipe 21 is made of metal like the cylinder 1, and compared with the traditional circular shape, the air pipe 21 enables a sample not to be completely circular any more, and when the cylinder 1 rotates, the air pipe can drive the sample to rotate, so that the bottom is twisted off, and compared with the square shape, the air pipe is convenient to rotate outside and has smaller resistance. The lower end of the air pipe 21 is provided with an arc, so that the sample can be conveniently extruded, and the resistance is reduced. The cylinder 1 protrudes outwards to form a containing groove 29 which is convenient for containing the rubber bag 2, is convenient for storing the rubber bag 2 and reduces the pressure on the inner side.
The inflation mechanism comprises a sealing ring 22 which is fixed in the cylinder body 1 and is positioned on the upper side of the air pipe 21, an air inlet gap is reserved between the sealing ring 22 and the upper end of the air pipe 21, a guide pipe 23 with an upper end opening and capable of moving up and down is inserted in the middle of the sealing ring 22, the sealing ring 22 is not hard, the sealing performance of the guide pipe 23 is mainly improved, and air leakage is avoided. The guide tube 23 is sleeved with a first piston plate 24 which can move up and down and is positioned on the lower side of the sealing ring 22 and is attached to the cylinder body 1 and the air pipe 21, a first sealing pad 25 for sealing is arranged at the lower end of the first piston plate 24, a second piston plate 26 attached to the cylinder body 1 and the air pipe 21 is arranged at the bottom of the lower end of the guide tube 23, a second sealing pad 27 for sealing is arranged at the lower end of the second piston plate 26, an air inlet hole 28 is formed in the lower side of the circumference of the guide tube 23, a sampling distance which moves upwards when a sucked sample is reserved between the second piston plate 26 and the first piston plate 24, an inflating distance for inflating the rubber bag 2 is reserved between the first piston plate 24 and the sealing ring 22, and the guide tube further comprises a handle mechanism which is connected to the upper end of the guide tube 23 and is convenient to pull and inflate by hand. Here, a closed cavity communicating with the air pipe 21 is formed between the first piston plate 24 and the sealing ring 22, the first piston plate 24 is not directly fixed on the guide pipe 23, but is sleeved on the guide pipe, the first piston plate 24 ensures stability and stability, the first sealing gasket 25 at the lower side plays a role in sealing, the first piston plate 24 can be properly thick, and the guide is better. It should be noted that here the cavity between the second piston plate 26 and the first piston plate 24 is not sealed, it communicates with the air intake 28 and then with the outside via the guide tube 23, the volume inside is continuously reduced while the upper first piston plate 24 is not affected during sampling. When the sampling is completed, the handle mechanism is pulled to drive the guide tube 23 to move upwards, the second piston plate 26 moves upwards continuously and then contacts the first piston plate 24 to drive the first piston plate 24 to move upwards, the upper space is reduced, and air is compressed to the air tube 21, so that the rubber bag 2 is inflated, and bottom sealing is realized.
The handle mechanism comprises a guide block 3 fixedly sleeved at the circumferential upper end of the guide pipe 23, the guide block 3 is matched with the vent groove 13 in shape, and a handle 31 convenient for hand pulling is connected after the left side and the right side of the guide block 3 extend out of the vent groove 13. The guide block 3 is provided on the left and right sides and can be attached to the ventilation groove 13, and it should be noted that the upper end of the guide tube 23 extends out of the handle 31 to ventilate. The upper sides of the front and rear walls of the ventilation groove 13 are provided with limit grooves 32 capable of supporting the rotated guide block 3, and the guide tube 23 is rotatably connected with the second piston plate 26. Here, due to the limitation of the air pipe 21, the second piston plate 26 and the first piston plate 24 cannot rotate, the first piston plate 24 is sleeved on the guide pipe 23, the guide pipe 23 can rotate, and the second piston plate 26 at the lower side needs to be connected in a rotating way, so that the guide pipe 23 can rotate. After the rubber bag 2 is inflated, the handle 31 is fixed, return is avoided, and the limit groove 32 is convenient for fixing the guide block 3 after rotation. The inner side of the bottom of the inner cavity of the limiting groove 32 is concaved downwards to form a triangular clamping part 33, and clamping grooves 34 corresponding to the clamping part 33 are formed on the left side and the right side of the lower end of the guide block 3. The end of the clamping part 33, which is close to the guide block 3, is in an upturned triangle shape and is matched with the clamping groove 34, so that the guide block 3 is prevented from slipping.
Working principle: when the cylinder body 1 is inserted for sampling, bone tissue can squeeze the second piston plate 26 to promote the second piston plate 26 to move upwards, if the second piston plate 26 is easy to insert, or the handle 31 does not move so much, the handle 31 can be pulled in an auxiliary way to indicate that the liquid tissue is relatively more, the handle 11 is rotated, the cylinder body 1 rotates, and the hard air pipe 21 drives the sample to rotate, so that the bottom is twisted off, and if the liquid tissue is in a liquid state, the liquid tissue is more convenient to use. After the sampling is finished, the handle 31 is pulled up, if the handle 31 is pulled up, the hard bone tissue is indicated, the handle 11 can be pulled outwards directly, if the handle 31 is pulled up, the liquid state is relatively large, the barrel 1 can be sensed when being inserted, the handle 31 drives the guide tube 23 to move upwards, the second piston plate 26 is driven to move upwards continuously, then the second piston plate 26 contacts the upper first sealing pad 25 and the first piston plate 24, the first piston plate 24 is driven to move upwards, the upper chamber gas is driven to be compressed, then the air pipe 21 is inflated, the rubber bag 2 is driven to be inflated, the second piston plate 26 is similar to a syringe, the sample is driven to move upwards, meanwhile, the rubber bag 2 is inflated and inflated to be sealed, and the two are simultaneously carried out, and the two are sealed at the same time, and move upwards simultaneously, more conveniently compared with the prior process, the handle is moved upwards, and sealing can be realized by pulling the handle 31. After the guide block 3 is pulled to the limit groove 32, the handle 31 is rotated, and the guide block 3 is clamped into the limit groove 32, so that the rubber bag 2 is in an inflated state, and the clamping part 33 and the clamping groove 34 are arranged, so that the anti-skid effect is improved, and the anti-skid device is more complete.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a leak protection bone biopsy device, includes circular shape barrel (1), sets up handle (11) in barrel (1) upper end, sets up at cutter (12) of cockscomb structure of barrel (1) lower extreme and sets up two vertical ventilation groove (13) about barrel (1) circumference upside, its characterized in that: the lower side of the inner cavity of the cylinder body (1) is provided with a columnar rubber bag (2), the upper end and the lower end of the rubber bag (2) are fixed on the cylinder body (1), and an inflatable cavity is formed between the rubber bag (2) and the cylinder body (1);
the inflatable cavity is connected with a hard air pipe (21) with an upper end opening vertically upwards, the air pipe (21) is fixed on the inner wall of the cylinder body (1), and the air pipe (21) can drive an inner side sample to rotate to avoid sliding when the cylinder body (1) rotates, and the inflatable device further comprises an inflatable mechanism for inflating the air pipe (21).
2. The leakage-proof bone biopsy device of claim 1, wherein: at least two air pipes (21) are symmetrically arranged.
3. The leakage-proof bone biopsy device of claim 2, wherein: the utility model provides an inflation mechanism is including fixing sealing ring (22) that are located trachea (21) upside in barrel (1), and leave the air inlet gap between the upper end of sealing ring (22) and trachea (21), the middle part grafting of sealing ring (22) has upper end open-ended stand pipe (23) that can reciprocate, cup jointed first piston plate (24) that are located laminating barrel (1) and trachea (21) of sealing ring (22) downside that can reciprocate on stand pipe (23), and the lower extreme of first piston plate (24) is provided with sealed first sealing pad (25), second piston plate (26) that laminate barrel (1) and trachea (21) are installed to the lower extreme bottom of stand pipe (23), and the lower extreme of second piston plate (26) is provided with sealed second sealing pad (27) that use, set up on the circumference downside of stand pipe (23), and first piston plate (24) are inhaled when being located between piston plate (24) and first piston plate (24) and are inhaled first piston plate and are moved, and still keep sample distance on the hand bag (2) to the upper end of the inflation mechanism including the upper end of the inflation.
4. The leakage prevention bone biopsy device of claim 3, wherein: the cylinder body (1) protrudes outwards to form a containing groove (29) which is convenient for containing the rubber bag (2).
5. The leakage prevention bone biopsy device of claim 4, wherein: the handle mechanism comprises a guide block (3) fixedly sleeved at the circumferential upper end of the guide pipe (23), the guide block (3) is matched with the vent groove (13) in shape, and a handle (31) convenient to pull is connected after the left side and the right side of the guide block (3) extend out of the vent groove (13).
6. The leakage prevention bone biopsy device of claim 5, wherein: limiting grooves (32) capable of supporting the rotated guide blocks (3) are formed in the upper sides of the front wall and the rear wall of the ventilation groove (13), and the guide pipe (23) is connected with the second piston plate (26) in a rotating mode.
7. The leakage prevention bone biopsy device of claim 6, wherein: the inner side of the bottom of the inner cavity of the limiting groove (32) is concaved downwards to form a triangular clamping part (33), and clamping grooves (34) corresponding to the clamping part (33) are formed in the left side and the right side of the lower end of the guide block (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111170818.4A CN113855098B (en) | 2021-10-08 | 2021-10-08 | Leakage-proof bone biopsy device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111170818.4A CN113855098B (en) | 2021-10-08 | 2021-10-08 | Leakage-proof bone biopsy device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113855098A CN113855098A (en) | 2021-12-31 |
| CN113855098B true CN113855098B (en) | 2023-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111170818.4A Active CN113855098B (en) | 2021-10-08 | 2021-10-08 | Leakage-proof bone biopsy device |
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| CN (1) | CN113855098B (en) |
Citations (9)
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|---|---|---|---|---|
| US5868684A (en) * | 1993-12-22 | 1999-02-09 | Radi Medical Systems Ab | Device for hard tissue biopsy sampling |
| CN201949049U (en) * | 2011-01-18 | 2011-08-31 | 王健 | Orthopedic biopsy sampler |
| CN209678563U (en) * | 2018-09-20 | 2019-11-26 | 昆明医科大学第二附属医院 | A kind of pathology department's bone marrow aspiration biopsy needle |
| CN211049446U (en) * | 2019-09-29 | 2020-07-21 | 贵州医科大学 | Tumor detection tissue sampling device |
| CN212438689U (en) * | 2020-04-14 | 2021-02-02 | 李文艳 | Gastroenterology biopsy sampler |
| CN112545577A (en) * | 2020-12-10 | 2021-03-26 | 咸宁市中心医院 | Biopsy device for windowing bone tumor or bone disease |
| CN113057692A (en) * | 2021-04-23 | 2021-07-02 | 马锐 | Spinal bone tumor biopsy puncture needle |
| CN213910329U (en) * | 2020-11-13 | 2021-08-10 | 沈阳医学院 | Negative pressure rotary-cut puncture cannula for bone tumor puncture biopsy |
| CN214017634U (en) * | 2020-12-02 | 2021-08-24 | 深圳平乐骨伤科医院(深圳市坪山区中医院) | Bone biopsy extractor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7201722B2 (en) * | 2000-04-18 | 2007-04-10 | Allegiance Corporation | Bone biopsy instrument having improved sample retention |
-
2021
- 2021-10-08 CN CN202111170818.4A patent/CN113855098B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5868684A (en) * | 1993-12-22 | 1999-02-09 | Radi Medical Systems Ab | Device for hard tissue biopsy sampling |
| CN201949049U (en) * | 2011-01-18 | 2011-08-31 | 王健 | Orthopedic biopsy sampler |
| CN209678563U (en) * | 2018-09-20 | 2019-11-26 | 昆明医科大学第二附属医院 | A kind of pathology department's bone marrow aspiration biopsy needle |
| CN211049446U (en) * | 2019-09-29 | 2020-07-21 | 贵州医科大学 | Tumor detection tissue sampling device |
| CN212438689U (en) * | 2020-04-14 | 2021-02-02 | 李文艳 | Gastroenterology biopsy sampler |
| CN213910329U (en) * | 2020-11-13 | 2021-08-10 | 沈阳医学院 | Negative pressure rotary-cut puncture cannula for bone tumor puncture biopsy |
| CN214017634U (en) * | 2020-12-02 | 2021-08-24 | 深圳平乐骨伤科医院(深圳市坪山区中医院) | Bone biopsy extractor |
| CN112545577A (en) * | 2020-12-10 | 2021-03-26 | 咸宁市中心医院 | Biopsy device for windowing bone tumor or bone disease |
| CN113057692A (en) * | 2021-04-23 | 2021-07-02 | 马锐 | Spinal bone tumor biopsy puncture needle |
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| Publication number | Publication date |
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| CN113855098A (en) | 2021-12-31 |
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