CN207693649U - It is a kind of can forcing for small pulmonary artery positioning paracentesis trocar - Google Patents
It is a kind of can forcing for small pulmonary artery positioning paracentesis trocar Download PDFInfo
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- CN207693649U CN207693649U CN201621423512.XU CN201621423512U CN207693649U CN 207693649 U CN207693649 U CN 207693649U CN 201621423512 U CN201621423512 U CN 201621423512U CN 207693649 U CN207693649 U CN 207693649U
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- needle
- puncture
- guiding
- puncture needle
- forcing
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Abstract
It is a kind of can forcing the paracentesis trocar for small pulmonary artery positioning, be related to the field of medical instrument, including guiding needle cannula and puncture needle；The guiding needle cannula includes needle tubing and needle stand, and the proximal end of needle tubing is fixedly connected with needle stand, and the distal end of needle tubing is syringe needle；The puncture needle setting is in guiding needle cannula, and in the distal end of puncture needle welding development pipe, end of the development pipe away from puncture needle is equipped with distance.By welding development pipe in the distal end of puncture needle, forcing effect is accurately positioned the utility model under CT guiding, and can track paracentesis depth according to development situation, is conducive to secure anchorage tumor locus, implements precisely excision.It avoids puncturing through to greatest extent shallow, is unable to reach tumor locus；Puncture the too deep generation for leading to blood vessel and injury of lungs, causing bleeding with complication such as lung tearing, gas leakage, serious threat to life safety.
Description
Technical field
The utility model is related to the fields of medical instrument, more particularly to develop a kind of novel not damaged positioning developed
Puncture needle is accurately positioned under CT guiding, and can track paracentesis depth according to development situation, is conducive to secure anchorage tumour portion
Precisely excision is implemented in position.
Background technology
For the Small pulmonary nodule that clinical initial survey arrives, correctly judge that its is good pernicious particularly important.The Hook- under CT guiding
Wire positioning can reduce transfer open chest surgery rate, safe and efficient, the etiologic diagnosis for pulmonary module venereal disease stove and formulation treatment side
Case provides important foundation.It is preoperative under ct scanning guidance, according to " recently vertical " principle, after percutaneously penetrating positioning system trocar
Merging buckle steel wire simultaneously recycles trocar, obtains CT and rebuilds 3-D view, patient is gone to operating room, in VATS in art（TV is auxiliary
Help thoracoscopic operation）Steel wire depth and lesions position are quickly and accurately determined under auxiliary, lift positioning wire excision disease with nipper
Become tissue.
What is clinically used at present is mostly the precious refined Products of Meditech companies of the U.S. or Germany.Disadvantage：The puncture needle
Shallower apart from pleura to nodule position, the Lung neoplasm accuracy rate of diameter 10-30mm is higher.But it is deeper for small pulmonary artery position
（Shortest distance pleura is more than 10mm）, tubercle is sufficiently small（Diameter≤10mm）Locating accuracy can be decreased obviously.In piercing process
In, it is very thin because puncturing needle distal, thus unobvious of developing at CT, lead to that the depth of puncture can not be accurately held.It punctures through
It is deep or excessively shallow, it can not all implement to be accurately positioned.Puncture it is too deep also result in blood vessel and injury of lungs, cause bleeding and lung tearing, leakage
The generation of the complication such as gas, serious threat to life safety.
Invention content
The purpose of this utility model be to provide it is a kind of can forcing for small pulmonary artery positioning paracentesis trocar, in CT
Guiding is lower to be accurately positioned, and can track paracentesis depth according to development situation, is conducive to secure anchorage tumor locus, implementation is precisely cut
It removes.
What the purpose of this utility model was realized in：It is a kind of can forcing for small pulmonary artery positioning puncture set
Needle, including guiding needle cannula and puncture needle；The guiding needle cannula includes needle tubing and needle stand, and the proximal end of needle tubing is fixed with needle stand to be connected
It connects, the distal end of needle tubing is syringe needle；The puncture needle setting, in the distal end of puncture needle welding development pipe, is shown in guiding needle cannula
End of the shadow pipe away from puncture needle is equipped with distance.
When puncture, puncture needle is in guiding needle cannula.After skin routine disinfection, CT guiding under will guiding needle cannula together with
Puncture needle is pierced into small pulmonary artery position together, then discharges puncture needle and implements positioning, escape leading needle cannula.The utility model is logical
It crosses in the distal end of puncture needle welding development pipe, forcing effect is accurately positioned under CT guiding, and can be chased after according to development situation
Track paracentesis depth is conducive to secure anchorage tumor locus, implements precisely excision.It avoids puncturing through to greatest extent shallow, is unable to reach
Tumor locus；The too deep generation for leading to blood vessel and injury of lungs, causing bleeding with complication such as lung tearing, gas leakage is punctured, it is serious to endanger
And life security.
In order to further increase accuracy, needle tubing scale is set on the needle tubing, is arranged on the puncture needle and punctures
Drypoint degree.
Can develop for the classification design of percutaneous small pulmonary artery Needle localization trocar, test method, inspection rule, mark
Meet following standard with operation instructions, packaging, transport and storage etc..Clause in the following files is by quotation of this standard
As the clause of this standard.Every reference document with bearing date, all later modification is single (not including the content of corrigenda), or
Revised edition is not suitable for this standard, however, encouraging to be examined whether that these texts can be used according to each side that this standard is reached an agreement
The latest edition of part.Every reference document without bearing date, latest edition are suitable for this standard.
GB/T 191-2008 packaging--pictorial marking for handling of goods
2828.1 sampling procedures for inspection by attributes part 1s of GB/T：By the lot-by-lot inspection of quality of reception limit (AQL) retrieval
Sampling plan
GB/T 9969-2008 general principles for preparation of instructions for use of industrial products
One butadiene of GB/T 12672-2009 acrylonitrile one styrene (ABS) resin
GB/T 14233.1-2008 medical infusions, blood transfusion, instrument used for injection method of inspection part 1:Chemical analysis method
GB/T 14233.2-2005 medical infusions, blood transfusion, instrument used for injection method of inspection part 2:Biological test side
Method
16886.1 BiologicalEvaluationofMedicalDevice part 1s of GB/T：Evaluation and experiment
GB 18457 manufactures medical instrument stainless steel needle tubing.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram for guiding needle cannula.
Fig. 3 is the structural schematic diagram of puncture needle.
Fig. 4 is the portions A enlarged drawing in Fig. 2.
Fig. 5 is the portions B enlarged drawing in Fig. 3.
Specific implementation mode
As shown in Figs. 1-5, can forcing for small pulmonary artery positioning paracentesis trocar, including guiding 1 He of needle cannula
Puncture needle 2.
It includes needle tubing 1-2 and needle stand 1-3 to guide needle cannula 1, and the proximal end of needle tubing 1-2 is fixedly connected with needle stand 1-3, needle tubing 1-
2 distal end is syringe needle 1-1, and needle tubing scale 1-4 is arranged on needle tubing 1-2.
The setting of puncture needle 2 is in guiding needle cannula 1, and in the distal end of puncture needle 2 welding development pipe 3, development pipe 3 is away from puncture needle
2 end is equipped with distance, and puncture needle scale 4 is arranged on puncture needle 2.
The product is divided into 18G, 17G, 16G totally 3 kinds of specifications according to guiding gauge；Add in the distal end suitable position of puncture needle
Add developing apparatus, reinforce the development effect under CT, scale shows penetration depth.
Guiding needle needle tubing, draw point silk, piercing needle are made of 0Cr18Ni9 stainless steel materials specified in GB 18457；
Guide the needle stand of needle using one butadiene of acrylonitrile, one styrene (ABS) resin or other macromolecules specified in GB/T 12672
Material is made.
With normal or observation of correcting defects of vision, guiding needle needle stand should be without injection defects such as apparent flash, creeping and bubbles.With putting
When big spectroscopy, guiding needle needle point should be without tack, burr and crotch.The specification and basic size for guiding needle meet national regulation.
The surface roughness of needle tubing is not more than Ra1.6um.The needle tubing stiffness of guiding needle, which meets in GB 18457, to be provided.Guiding
Needle needle tubing toughness, which meets in GB 18457, to be provided.The corrosion resistance of guiding needle needle tubing meets the regulation in GB 18457.Guiding
Needle needle tubing is connect with needle stand should be secured, makees drawing experiment under the pulling force of 40N, and the two does not detach.Guide the inner cavity of needle
Cleaning is answered, in 60mL eluents, the particle number more than 5 μm must not exceed 100/mL.Ethane via epoxyethane sterilizes, residual quantity
10 μ g/g, which should be not more than, keeps its sterile.Without pyrogen.Cytotoxicity should be not more than 1 grade.Without intradermal stimulate the reaction.Without sensitization of skin
Reaction.The above-mentioned desirable embodiment according to the utility model is enlightenment, and through the above description, relevant staff is complete
Various changes and amendments can be carried out in the range of without departing from this item utility model technological thought.This item utility model
Technical scope be not limited to the contents of the specification, it is necessary to its technical model is determined according to right
It encloses.
Claims (2)
1. it is a kind of can forcing for small pulmonary artery positioning paracentesis trocar, it is characterised in that：Including guiding needle cannula and
Puncture needle；The guiding needle cannula includes needle tubing and needle stand, and the proximal end of needle tubing is fixedly connected with needle stand, and the distal end of needle tubing is needle
Head；The puncture needle setting is in guiding needle cannula, in the distal end of puncture needle welding development pipe, end of the development pipe away from puncture needle
Equipped with distance.
2. according to claim 1 can forcing for small pulmonary artery positioning paracentesis trocar, it is characterised in that：Institute
Setting needle tubing scale on needle tubing is stated, puncture needle scale is set on the puncture needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621423512.XU CN207693649U (en) | 2016-12-23 | 2016-12-23 | It is a kind of can forcing for small pulmonary artery positioning paracentesis trocar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621423512.XU CN207693649U (en) | 2016-12-23 | 2016-12-23 | It is a kind of can forcing for small pulmonary artery positioning paracentesis trocar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207693649U true CN207693649U (en) | 2018-08-07 |
Family
ID=63019424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621423512.XU Active CN207693649U (en) | 2016-12-23 | 2016-12-23 | It is a kind of can forcing for small pulmonary artery positioning paracentesis trocar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207693649U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725758A (en) * | 2016-12-23 | 2017-05-31 | 扬州大学 | It is a kind of can forcing for small pulmonary artery positioning paracentesis trocar |
-
2016
- 2016-12-23 CN CN201621423512.XU patent/CN207693649U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106725758A (en) * | 2016-12-23 | 2017-05-31 | 扬州大学 | It is a kind of can forcing for small pulmonary artery positioning paracentesis trocar |
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