CN210843184U - Bone marrow biopsy needle - Google Patents
Bone marrow biopsy needle Download PDFInfo
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- CN210843184U CN210843184U CN201920966505.1U CN201920966505U CN210843184U CN 210843184 U CN210843184 U CN 210843184U CN 201920966505 U CN201920966505 U CN 201920966505U CN 210843184 U CN210843184 U CN 210843184U
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- negative pressure
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- needle
- pressure pole
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Abstract
The utility model provides a marrow biopsy needle, includes pjncture needle and negative pressure pole, pjncture needle cavity sets up and is formed with the drainage groove, negative pressure pole cavity sets up and is formed with the sampling chamber, the pjncture needle is including being used for the puncture to advance the internal syringe needle of human and being used for the backshank of being connected with the negative pressure pole, the one end that the backshank was kept away from to the negative pressure pole is provided with the negative pressure head that is used for being connected with outside negative pressure motor, backshank and negative pressure pole grafting cooperation, the backshank is provided with soft ring to the extension of negative pressure pole, the sampling chamber is provided with the flexible pipe to soft ring extension, the drainage groove is provided with the plug to soft pipe extension, the plug realizes switching on of drainage groove and sampling chamber with the cooperation of pegging graft of soft pipe, be. The utility model discloses simple structure is applicable to the occasion of extraction many times, and the effectual demand of avoiding because of extracting many times leads to the patient often to be pricked the misery that produces, and the effectual operation efficiency that has promoted.
Description
Technical Field
The utility model relates to the technical field of medical equipment, in particular to a marrow biopsy needle.
Background
Bone marrow biopsy, called marrow biopsy for short, is a pathological examination of a small 0.5-1 cm-long cylindrical bone marrow tissue with a special puncture needle. The operation method is completely the same as the bone marrow puncture, and the taken out material keeps the complete bone marrow tissue structure and can make up the defect of the bone marrow puncture. Not only can understand the components of the bone marrow cells and the distribution condition of the original cells, but also can observe the cell morphology, is convenient for making pathological diagnosis and has important significance for diagnosing aplastic anemia and myelodysplasia. In addition, the kit also has diagnostic significance for bone marrow necrosis and bone marrow adiposis. Bone marrow biopsy, like bone marrow aspiration, is also a way to understand how bone marrow behaves. But biopsy is more detailed and comprehensive than puncture in understanding the state of the bone marrow. For some diseases, such as myelofibrosis, marrow puncture often fails due to 'dry suction', while marrow biopsy often succeeds, and in the prior art, the situations that the extraction amount is not intuitive and is uncertain often occur, and a doctor often needs to make an autonomous judgment, so that the doctor needs to prick or extract repeatedly to make a later sampling result more definite.
And chinese utility model patent CN201520805080.8 discloses a bone marrow biopsy needle, which is characterized in that: the bone marrow biopsy needle comprises a needle sleeve, an inner needle tube, an axial telescopic adjusting knob, an adjusting sleeve, a fixed sleeve, a handle with a negative pressure cavity and a negative pressure pipeline switch; wherein: the inner needle tube is positioned in the needle sleeve, the needle sleeve is connected with the adjusting sleeve, the middle upper part of the inner needle tube is connected with the axial telescopic adjusting knob, the axial telescopic adjusting knob is matched with the adjusting sleeve, and the adjusting sleeve is connected with a handle with a negative pressure cavity through a fixing sleeve; the inner needle tube is communicated with a handle with a negative pressure cavity through a negative pressure pipeline switch. The device has a complex structure, is inconvenient to operate, and is not suitable for the situation of repeated extraction, so that the operation efficiency is greatly reduced.
SUMMERY OF THE UTILITY MODEL
The utility model provides a marrow biopsy needle, which solves the problems of complex operation and inapplicability to multiple extraction in the prior art.
The utility model provides a marrow biopsy needle, includes pjncture needle and negative pressure pole, pjncture needle cavity sets up and is formed with the drainage groove, negative pressure pole cavity sets up and is formed with the sampling chamber, the pjncture needle is including being used for the puncture to advance the internal syringe needle of human and being used for the backshank of being connected with the negative pressure pole, the one end that the backshank was kept away from to the negative pressure pole is provided with the negative pressure head that is used for being connected with outside negative pressure motor, backshank and negative pressure pole grafting cooperation, the backshank is provided with soft ring to the extension of negative pressure pole, the sampling chamber is provided with the flexible pipe to soft ring extension, the drainage groove is provided with the plug to soft pipe extension, the plug realizes switching on of drainage groove and sampling chamber with the cooperation of pegging graft of soft pipe, be.
The technical scheme is adopted, and the method has the advantages that: when the doctor is operating, insert the pjncture needle in the human body, insert the negative pressure pole and establish the backshank, make the plug insert switching on of intraductal realization drainage groove of softness and sampling chamber, up twist the retaining member again and make the retaining member carry out the oppression of contradicting to soft ring, soft ring opening reduces this moment and makes soft ring compress tightly the flexible pipe, the flexible pipe tightens up and makes flexible inside pipe wall and plug laminating, liquid leaks when avoiding the pjncture needle extraction, make inseparabler of puncture process, the accuracy of the liquid of extraction has been improved, and make the negative pressure pole insert establish inseparabler at the backshank, the extraction efficiency of performing the operation has been improved, and negative pressure pole detachable sets up at the backshank, be applicable to the occasion of extraction: if the patient extraction amount is not enough or the patient needs to extract too much, the problem that the puncture needle needs to be repeatedly pricked by a doctor is avoided, the use cost of a plurality of puncture needles is reduced, and the reduction of the medical cost of the patient is facilitated.
The utility model discloses further set up: the soft ring is arranged from the opening to the needle tail and is gradually narrowed, the locking piece is a locking ring, the diameter of the locking ring is smaller than that of the opening of the soft ring, and the locking ring moves upwards to abut against the soft ring to compress the soft tube.
The technical scheme is adopted, and the method has the advantages that: the diameter of the locking ring is smaller than that of the opening of the soft ring, so that the compression effect of the locking ring on the soft ring is effectively improved, liquid leakage during the extraction of the puncture needle is avoided, and the operation efficiency is improved.
The utility model discloses further set up: screw-thread fit has the conflict ring on the backshaft periphery wall, conflict ring extends to the locking ring and is provided with the conflict piece, conflict ring and backshaft screw-thread fit make the conflict ring shift up realize conflict piece to the conflict of locking ring.
The technical scheme is adopted, and the method has the advantages that: the setting of the contact ring enables the locking ring to be limited when the soft ring is compressed, the soft ring is prevented from falling off in operation extraction, and therefore liquid is prevented from leaking when the soft tube is compressed to cause puncture needle extraction, and operation puncture efficiency is effectively improved.
The utility model discloses further set up: the negative pressure rod is made of transparent materials, and scales are arranged on the side wall of the sampling cavity.
The technical scheme is adopted, and the method has the advantages that: the negative pressure rod is made of transparent materials, and the side wall of the sampling cavity is provided with scales, so that a doctor can observe the amount of the extracted fluid in the sampling cavity, and the follow-up operation steps can be conveniently carried out.
The utility model discloses further set up: and friction stripes are arranged on the outer wall of the negative pressure rod.
The technical scheme is adopted, and the method has the advantages that: the friction stripes are arranged, so that a doctor can better rotate or hold the negative pressure rod during operation, and accidents in the extraction process are avoided.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
fig. 2 is a schematic cross-sectional view of the usage state of the present invention.
Detailed Description
A marrow biopsy needle comprises a puncture needle 1 and a negative pressure rod 2, wherein a drainage groove 13 is formed in the hollow setting of the puncture needle 1, a sampling cavity 22 is formed in the hollow setting of the negative pressure rod 2, the puncture needle 1 comprises a needle head 11 used for puncturing the inside of a human body and a needle tail 12 used for being connected with the negative pressure rod 2, one end, far away from the needle tail 12, of the negative pressure rod 2 is provided with a negative pressure head 23 used for being connected with an external negative pressure motor, the needle tail 12 is in splicing fit with the negative pressure rod 2, the needle tail 12 extends towards the negative pressure rod 2 and is provided with a soft ring 121, the sampling cavity 22 extends towards the soft ring 121 and is provided with a soft tube 21, the drainage groove 13 extends towards the soft tube 21 and is provided with a plug 131, the plug 131 is in splicing fit with the soft tube 21 to realize the conduction of the drainage groove 13 and the sampling cavity 22, a retaining member used for realizing the compression fit, soft ring 121 sets up from opening department to the gradual narrowing of backshank 12, the retaining member is locking ring 3, locking ring 3 diameter is less than soft ring 121 opening part diameter, locking ring 3 moves up and conflicts soft ring 121 and realize that soft ring 121 compresses tightly soft pipe 21, screw-thread fit has conflict ring 4 on the 12 periphery walls of backshank, it is provided with conflict piece 41 to locking ring 3 extension to conflict ring 4, it makes to conflict ring 4 and the 12 screw-thread fit of backshank 12 to realize the conflict of conflict piece 41 to locking ring 3 to conflict ring 4, negative pressure pole 2 adopts transparent material, be provided with the scale on the sampling chamber 22 lateral wall, be equipped with the friction stripe on the 2 outer walls of negative pressure pole.
When a doctor performs a puncture operation, the negative pressure rod 2 is inserted at the needle tail 12, the plug 131 is inserted into the flexible tube 21 to achieve conduction of the drainage groove 13 and the sampling cavity 22, the locking ring 3 is screwed up to enable the locking ring 3 to be abutted with the flexible ring 121 to achieve compression of the flexible ring 121 on the flexible tube 21, the flexible tube 21 is tightened to enable the inner wall of the flexible tube 21 to be attached to the outer wall of the plug 131, the abutting ring 4 is rotated at the moment, the abutting ring 4 is moved up in threaded fit with the needle tail 12 to drive the abutting block 41 to move up to abut against the locking ring 3 to achieve limiting of the locking ring 3, the locking ring 3 is prevented from moving down, and at the moment, the doctor speaks that the needle head 11 of the puncture needle 1 is inserted into a human body to. If the operation process needs to be repeatedly pricked, the negative pressure rod 2 is taken down, at the moment, the doctor rotates the abutting ring 4 to enable the abutting ring 4 to move downwards to contact with the abutting ring 3 to press the locking ring 3, the locking ring 3 is screwed to enable the locking ring 3 to move downwards to contact with the soft ring 121 to be pressed, and at the moment, the negative pressure rod 2 is pulled out.
Claims (5)
1. The utility model provides a marrow biopsy needle, includes pjncture needle and negative pressure pole, pjncture needle cavity sets up and is formed with the drainage groove, negative pressure pole cavity sets up and is formed with the sampling chamber, the pjncture needle is including being used for the puncture to advance the internal syringe needle of human and being used for the backshank of being connected with the negative pressure pole, the one end that the backshank was kept away from to the negative pressure pole is provided with the negative pressure head that is used for being connected with outside negative pressure motor, its characterized in that: the needle tail and the cooperation of pegging graft of negative pressure pole, the needle tail extends to the negative pressure pole and is provided with soft ring, the sampling chamber extends to soft ring and is provided with the soft pipe, the drainage groove is provided with the plug to the soft pipe extension, the plug is pegged graft with the soft pipe and is cooperated the switch-on that realizes drainage groove and sampling chamber, be provided with the retaining member that is used for realizing soft ring to the flexible pipe tight fitting of pressure on the soft ring periphery wall.
2. The bone marrow biopsy needle according to claim 1, characterized in that: the soft ring is arranged from the opening to the needle tail and is gradually narrowed, the locking piece is a locking ring, the diameter of the locking ring is smaller than that of the opening of the soft ring, and the locking ring moves upwards to abut against the soft ring to compress the soft tube.
3. A bone marrow biopsy needle according to claim 2, characterized in that: screw-thread fit has the conflict ring on the backshaft periphery wall, conflict ring extends to the locking ring and is provided with the conflict piece, conflict ring and backshaft screw-thread fit make the conflict ring shift up realize conflict piece to the conflict of locking ring.
4. The bone marrow biopsy needle according to claim 1, characterized in that: the negative pressure rod is made of transparent materials, and scales are arranged on the side wall of the sampling cavity.
5. The bone marrow biopsy needle according to claim 1, characterized in that: and friction stripes are arranged on the outer wall of the negative pressure rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920966505.1U CN210843184U (en) | 2019-06-25 | 2019-06-25 | Bone marrow biopsy needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920966505.1U CN210843184U (en) | 2019-06-25 | 2019-06-25 | Bone marrow biopsy needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210843184U true CN210843184U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920966505.1U Active CN210843184U (en) | 2019-06-25 | 2019-06-25 | Bone marrow biopsy needle |
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| Country | Link |
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| CN (1) | CN210843184U (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 |
-
2019
- 2019-06-25 CN CN201920966505.1U patent/CN210843184U/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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