CN2261816Y - Core-teeth type aspiration biopsy needle - Google Patents
Core-teeth type aspiration biopsy needle Download PDFInfo
- Publication number
- CN2261816Y CN2261816Y CN 96208802 CN96208802U CN2261816Y CN 2261816 Y CN2261816 Y CN 2261816Y CN 96208802 CN96208802 CN 96208802 CN 96208802 U CN96208802 U CN 96208802U CN 2261816 Y CN2261816 Y CN 2261816Y
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- CN
- China
- Prior art keywords
- utility
- model
- closing member
- nook closing
- tooth
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- Expired - Fee Related
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Abstract
The utility model relates to a core-teeth type aspiration biopsy needle, which comprises a trocar and a puncture needle core. The utility model also comprises a toothed needle core which can be divided into an arista toothed section, a body section and a handle section, wherein, the arista toothed section is provided with 18 to 36 small teeth which are in spiral arrangement. The utility model can succeed with one puncture. The utility model can repeatedly take samples for many times. The rate of success is high. The utility model does not need vacuum suction. Complicating diseases can be avoided or reduced. The utility model can treat affected parts appropriately, and the utility model is safe and reliable.
Description
This utility model relates to a kind of core flute profile aspiration biopsy pin.
Obtain tissue, the cell of diseased region with piercing method, carry out the check of pathology or etiology, just extensive use in clinical position for a long time.Traditional way is: earlier the needle tubing with belt carcass thrusts target, withdraws from nook closing member then, connects syringe, by the sharp sword cutting and separating tissue of needle tubing tip, sucks needle tubing by tissue, the cell of negative pressure cutting and separating, pulls out to release or disclose piece of tissue behind the pin and inspect by ready samples.Shallow as the position table, normal injection syringe needle puncture suction commonly used.The defective that this needle tubing suction is drawn materials is: the success or failure of drawing materials only just can be known after pulling out pin, if fail to obtain or the histiocyte of getting is difficult to make a definite diagnosis, the puncture of can only reforming has so not only increased the patient suffering, and the puncture of breast abdominal organs depths has more been increased risk and difficulty.For reducing failure, increase the amount of drawing materials, people have carried out a large amount of research, improvement to the shape of needle point, but the most effective needle tubing diameter that still increases, pin is thick more, and the amount of drawing materials is big more, and success rate is high more, however various complication also increases thereupon.For harder tissue, negative pressure-pumping often is difficult to organize suck in the very thin needle tubing, causes puncture failure.
But the purpose of this utility model be for provide a kind of can one-time puncture the success repeated multiple times draw materials, draw materials the success rate height, need not vacuum suction, complication be can avoid or reduce, and can suitably processing, safe and reliable core flute profile aspiration biopsy pin be made affected part.
The purpose of this utility model can realize by following measure;
A kind of core flute profile aspiration biopsy pin contains trocar and puncture nook closing member; Also containing has the tooth nook closing member, and this nook closing member can be divided into awns tooth portion, body and shank, is provided with 18-36 the little tooth of shape arrangement in the shape of a spiral in awns tooth portion; There is the awns tooth portion of tooth nook closing member to be taper, the internal diameter of its maximum outside diameter≤trocar; The length of the length overall of the body of tooth nook closing member and awns tooth portion greater than trocar is arranged.
This utility model has following advantage compared to existing technology:
1, this utility model is on the basis of the nook closing member of original aspiration biopsy pin and trocar.Having increased by one has the tooth nook closing member, and the awns tooth portion of this nook closing member is provided with the little tooth of shape arrangement in the shape of a spiral; After puncture reaches target, the puncture nook closing member has been changed into the tooth nook closing member, its awns tooth portion enters tissue rotation shank, and little tooth is the cutting and separating tissue, and becomes entrained between cog.Withdraw from nook closing member, take off the between cog histiocyte and be used for check; Can repeatedly draw materials repeatedly, guarantee to draw materials successfully.Still keeping trocar because of withdrawing from nook closing member again, thus can avoid puncturing again, thereby can reduce the patient suffering; In addition, can combine with quick diagnosis, let the acupuncture needle remain at a certain point in the back of drawing materials waits for the pathology repayment, if can make a definite diagnosis, and also can medicine be injected the site of puncture by trocar, and affected part is correspondingly processed, and reaches the purpose of treatment and pre-non-proliferation.
2, this utility model can be drawn materials and usefulness with the negative pressure-pumping needle tubing, can improve the success rate of aspiration biopsy greatly; And, have more significant superiority for the higher tissue of hardness that negative pressure-pumping is difficult to obtain, can guarantee to puncture and draw materials successfully; This utility model is tried out lump aspiration biopsy 5 examples in pulmonary, example surplus cervical region, the aspiration biopsy 20 of thoracic wall lump, and success rate is up to 100%.
3, this utility model can insert thin plastic catheter by trocar after using bodkin to draw materials, and extracts trocar and keeps somewhere plastic tube, injects medical glue through plastic tube again, the puncture duct all can be sealed, thereby can be prevented the generation of complication such as hemorrhage, pneumothorax.
Concrete structure of the present utility model is provided by the following drawings:
Fig. 1 is an aspiration biopsy needle construction sketch map
The 1-trocar 2-nook closing member that punctures
Fig. 2 is the structural representation that the tooth nook closing member is arranged of the present utility model
The little tooth 4-of 3-has the tooth nook closing member awns tooth 5-of portion that tooth nook closing member body is arranged
6-has tooth nook closing member shank
This utility model also is described in further detail structure accompanying drawing 1,2 embodiment:
With reference to Fig. 1,2, a kind of core flute profile aspiration biopsy pin contains trocar (1) and puncture nook closing member (2); Also containing has the tooth nook closing member, and this nook closing member can be divided into awns tooth portion (4), body (5) and shank (6), is provided with 27 little teeth (3) of shape arrangement in the shape of a spiral in awns tooth portion (4); There is tooth nook closing member awns tooth portion to be taper, the internal diameter of its maximum outside diameter≤trocar (1); The length of the length overall of the body (5) of tooth nook closing member and awns tooth portion (4) greater than trocar (1) is arranged.
Claims (3)
1, a kind of core flute profile aspiration biopsy pin contains trocar (1) and puncture nook closing member (2); It is characterized in that also containing and have tooth nook closing member, this nook closing member can be divided into awns tooth portion (4), body (5) and shank (6), be provided with 18-36 the little tooth (3) arranged of shape in the shape of a spiral in awns tooth portion (4).
2, core flute profile aspiration biopsy pin as claimed in claim 1 is characterized in that having the awns tooth portion (4) of tooth nook closing member to be taper, the internal diameter of its maximum outside diameter≤trocar (1).
3, core flute profile aspiration biopsy pin as claimed in claim 1 is characterized in that having the length of the length overall of the body (5) of tooth nook closing member and awns tooth portion (4) greater than trocar (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96208802 CN2261816Y (en) | 1996-03-28 | 1996-03-28 | Core-teeth type aspiration biopsy needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96208802 CN2261816Y (en) | 1996-03-28 | 1996-03-28 | Core-teeth type aspiration biopsy needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2261816Y true CN2261816Y (en) | 1997-09-10 |
Family
ID=33892656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96208802 Expired - Fee Related CN2261816Y (en) | 1996-03-28 | 1996-03-28 | Core-teeth type aspiration biopsy needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2261816Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106236151A (en) * | 2016-08-23 | 2016-12-21 | 王少峰 | A kind of puncture needle |
| CN111904711A (en) * | 2020-07-15 | 2020-11-10 | 中国人民解放军陆军军医大学第二附属医院 | Manual rotary cutting device is used in mediation of lacrimal passage |
-
1996
- 1996-03-28 CN CN 96208802 patent/CN2261816Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106236151A (en) * | 2016-08-23 | 2016-12-21 | 王少峰 | A kind of puncture needle |
| CN111904711A (en) * | 2020-07-15 | 2020-11-10 | 中国人民解放军陆军军医大学第二附属医院 | Manual rotary cutting device is used in mediation of lacrimal passage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |