CN204072889U - A kind of adjustable continuous vacuum vacuum injector - Google Patents
A kind of adjustable continuous vacuum vacuum injector Download PDFInfo
- Publication number
- CN204072889U CN204072889U CN201420505315.7U CN201420505315U CN204072889U CN 204072889 U CN204072889 U CN 204072889U CN 201420505315 U CN201420505315 U CN 201420505315U CN 204072889 U CN204072889 U CN 204072889U
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- China
- Prior art keywords
- pintle
- needle tubing
- extenal fixation
- needle
- vacuum
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- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The utility model discloses a kind of adjustable continuous vacuum vacuum injector, be provided with pintle, needle tubing, syringe needle, described needle tubing has body and needle tubing empennage; Described pintle has pintle flank, pintle heart and pintle empennage, it is characterized in that: also comprise extenal fixation module, and pintle is fixed in needle tubing by this extenal fixation module, thus forms the environment of continuous vacuum negative pressure in needle tubing.Extenal fixation module can adopt the various ways such as breach-geosynclinal block matching model and interlayer pin tablet mode.This utility model only needs to spend less cost custom extenal fixation module, existing equipment can be changed into adjustable continuous vacuum vacuum injector, operator can be absorbed in the process of Needle localization, greatly reduce and cause nook closing member distortion because aspirating maintenance needle tubing negative pressure energetically simultaneously, the maloperations such as needle point displacement and hyperextension, reduce unnecessary blood vesssls and nerves injuries.
Description
Technical field
This utility model relates to a kind of injector for medical purpose, particularly relates to a kind of adjustable continuous vacuum vacuum injector.
Background technology
Current various Medical negative pressure puncture needles, adopt ordinary syringe puncture mostly.Need bimanualness when medical personnel operate, be used on the other hand gripping needle tubing, pull pintle forms negative pressure-pumping on the other hand.This mode of operation easily produces the shake of syringe needle in piercing process, and the change of puncture position, and fluctuation of service, use is had any problem.
Chinese utility model patent 99221561.7 discloses a kind of disposable adjustable negative pressure auto-pumping body cavity puncture needle, and be provided with pintle, needle tubing, syringe needle, it is characterized in that pintle projection is provided with groove, needle tubing wall afterbody is provided with circular arc barrier sheet.In use, rotate after pintle pull, the circular arc barrier sheet that top is connected with needle tubing wall afterbody is embedded in the groove of pintle.This utility model to some extent solves one-handed performance puncture needle, improves the problem of operational stability.But still there is following problem, one is must rotate pintle in piercing process, easily produce shake and the instability of needle tubing entirety; Two is that circular arc barrier sheet not firmly insured with coordinating of stepped ramp type breach; Three is the breach that can only arrange very limited quantity on pintle, cannot realize the accurate control of negative pressure; Four is circular arc barrier sheets is needle tubing wall afterbody fixed part, therefore needs custom-made needle tubing, cannot obtain by carrying out simple reformation to market mainstream pricking device.
Utility model content
The purpose of this utility model solves the problems of the prior art, provides a kind of adjustable continuous vacuum vacuum injector
The technical solution of the utility model is: a kind of adjustable continuous vacuum vacuum injector, is provided with pintle, needle tubing, syringe needle, and described needle tubing has body and needle tubing empennage; Described pintle has pintle flank, pintle heart and pintle empennage, characterized by further comprising extenal fixation module, and pintle is fixed in needle tubing by this extenal fixation module, thus forms the environment of continuous vacuum negative pressure in needle tubing.
Preferably, described pintle flank arranges some breach; Described extenal fixation modular shape is identical with needle tubing empennage, and this extenal fixation module internal diameter is provided with symmetrical fixing geosynclinal block, and fixing geosynclinal block has the groove matched with pintle flank breach.
Preferably, described extenal fixation modular shape is identical with needle tubing empennage, and this extenal fixation module is sandwich design, and internal layer is provided with in order to by the thin pin sheet of the activity rigidity pushed away.
The purpose of this utility model is the defect and the deficiency that overcome existing lancet device, research and develop a kind of structure simple, with low cost, can provide the puncture needle of scalable continuous negative pressure, operator can singlely implement, without the need to suction force quantity not sufficient of worrying, more can be absorbed in the basic processes such as Needle localization, ensure the correctness of sampling, greatly reduce unnecessary blood vessel, nerve injury simultaneously.This utility model only need be transformed the needle tubing of ordinary syringe, pintle a little, and increases an easy extenal fixation module, and structure is simple, easy enforcement with low cost.
Accompanying drawing explanation
Fig. 1 is the front view of a kind of embodiment of this utility model;
Fig. 2 is top view 2a and the front sectional view 2b of the pipe empennage of a kind of embodiment of this utility model;
Fig. 3 is top view 3a, upward view 3b and the front view 3c of the extenal fixation module of a kind of embodiment of the present utility model;
Fig. 4 is the top view 4a and the front view 4b that fix geosynclinal block in the extenal fixation module of a kind of embodiment of the present utility model;
Fig. 5 is the front view of the another kind of embodiment of this utility model;
Fig. 6 is top view 6a, 6b and the front view 6c of the extenal fixation module two states of a kind of embodiment of the present utility model;
Fig. 7 is top view 7a, front view 7b and the right view 7c of thin pin sheet in the extenal fixation module of a kind of embodiment of the present utility model;
Detailed description of the invention
The technological means realized to make this utility model, technical characteristic, utility model object and technique effect are easy to understand, and below in conjunction with concrete diagram, set forth this utility model further.
Embodiment one:
As shown in Figure 1 to 4, a kind of disposable adjustable vacuum injector.Comprise puncture needle 1, spiral type interface 2, needle tubing 3, pintle 4, rubber piston 5 and extenal fixation module 8, wherein pintle 4 is cross type, forms by columniform pintle heart 10 and four groups of pintle flanks 9 are relative between two.Relative wherein 2 groups or 4 groups of pintle flanks 9 arrange some pintle flank breach 6 according to conventional scale, and notch geometry comprises and is not limited to rectangle, triangle, snap close polygon etc.
Syringe needle tube empennage 7 both sides are provided with 2 corresponding circular socket holes 21.Extenal fixation module 8 is formed in one, and housing shape is identical with needle tubing empennage 7.Extenal fixation module 9 is provided with 180 degree of two corresponding fixing geosynclinal blocks 321, and the size of fixing geosynclinal block need be less than the angle district that pintle empennage intersects to form.Fixing geosynclinal block 321 there is the groove 322 matched with pintle flank breach 6 face.Extenal fixation module can pass pintle empennage 11, inserts the circular socket holes 21 on needle tubing empennage and coincide with needle tubing empennage 7 to lock by the circular protrusions plug 33 on stuck-module.
In piercing process, after puncture needle 1 arrives patient's lesions position, connect vacuum injector.By extenal fixation module 8 through pintle 4, overlapping with needle tubing empennage 7, the projecting plug 33 of extenal fixation module 8 is interlocked with the jack 21 on needle tubing empennage 7 and locks.Pull syringe pintle 4 to required negative pressure scale immediately, after this have two kinds to operate and select, one is the locking removing extenal fixation module 8, rotates extenal fixation module 8, the breach 6 on pintle flank 9 is interlocked with the groove 322 on fixing geosynclinal block 321 and locks; Two is directly rotate pintle 4, the breach 6 on pintle flank 9 is interlocked with the groove 322 on fixing geosynclinal block 321 and locks, namely keep continuous negative pressure in syringe.Operator can unclamp syringe pintle, and only need hold needle tubing and puncture needle, according to iconography scanning result, the needle point of the puncture needle that moves around in focus gently, can obtain focus cell and send pathological examination.Operator can be absorbed in the process of Needle localization, greatly reduces and causes nook closing member distortion because aspirating maintenance needle tubing negative pressure energetically simultaneously, and the maloperations such as needle point displacement and hyperextension, reduce unnecessary blood vesssls and nerves injuries.
Embodiment two:
As shown in Figure 5, a kind of disposable adjustable vacuum injector.Comprise puncture needle 1, spiral type interface 2, needle tubing 3, pintle 4, rubber piston 5 and extenal fixation module 8, wherein pintle 4 is cross type, forms by columniform pintle heart 10 and four groups of pintle flanks 9 are relative between two.
As shown in Figure 2, syringe needle tube empennage 7 both sides are provided with 2 corresponding circular socket holes 21.Extenal fixation module 8 is sandwich design, internal layer be provided with can by the activity rigidity pushed away thin pin sheet 511, housing shape is identical with needle tubing empennage.
As shown in Fig. 6 ~ Fig. 7, in piercing process, after puncture needle 1 arrives patient's lesions position, connect vacuum injector.By extenal fixation module 8 through pintle 4, overlapping with needle tubing empennage 7, the projecting plug 512 of extenal fixation module 8 is interlocked with the jack 21 on needle tubing empennage 7 and locks.Pull syringe pintle 4 to required negative pressure scale immediately, firmly press the thin pin sheet 511 of activity rigidity in extenal fixation module 8 afterwards, thin pin sheet 511 will embed plastics pintle flank 9, thus the position of locking pintle 4, make to keep continuous negative pressure in syringe, Fig. 6 a and 6b is respectively the diagram that extenal fixation module pin sheet did not use and used two states.Operator can unclamp syringe pintle, and only need hold needle tubing and puncture needle, according to iconography scanning result, the needle point of the puncture needle that moves around in focus gently, can obtain focus cell and send pathological examination.Operator can be absorbed in the process of Needle localization, greatly reduces and causes nook closing member distortion because aspirating maintenance needle tubing negative pressure energetically simultaneously, and the maloperations such as needle point displacement and hyperextension, reduce unnecessary blood vesssls and nerves injuries.
The present embodiment does not need to do any change to the common disposable needle tubing used a large amount of on market, only needs the less cost custom extenal fixation module of cost, existing equipment can be changed into adjustable continuous vacuum vacuum injector; In addition, the present embodiment does not need, at pintle flank fluting, therefore to complete the locking to pintle on any scale, can form the negative pressure volume needed in needle tubing accurately.
Be only this utility model preferred embodiment in sum, be not used for limiting practical range of the present utility model.Namely all equivalences done according to the content of this utility model claim change and modify, and all should belong to technology category of the present utility model.
Claims (3)
1. an adjustable continuous vacuum vacuum injector, is provided with pintle, needle tubing, syringe needle, and described needle tubing has body and needle tubing empennage; Described pintle has pintle flank, pintle heart and pintle empennage, it is characterized in that: also comprise extenal fixation module, and pintle is fixed in needle tubing by this extenal fixation module, thus forms the environment of continuous vacuum negative pressure in needle tubing.
2. adjustable continuous vacuum vacuum injector according to claim 1, is characterized in that: described pintle flank arranges some breach; Described extenal fixation modular shape is identical with needle tubing empennage, and this extenal fixation module internal diameter is provided with symmetrical fixing geosynclinal block, and fixing geosynclinal block has the groove matched with pintle flank breach.
3. adjustable continuous vacuum vacuum injector according to claim 1, is characterized in that, described extenal fixation modular shape is identical with needle tubing empennage, and this extenal fixation module is sandwich design, and internal layer is provided with in order to by the thin pin sheet of the activity rigidity pushed away.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420505315.7U CN204072889U (en) | 2014-09-03 | 2014-09-03 | A kind of adjustable continuous vacuum vacuum injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420505315.7U CN204072889U (en) | 2014-09-03 | 2014-09-03 | A kind of adjustable continuous vacuum vacuum injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204072889U true CN204072889U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420505315.7U Expired - Fee Related CN204072889U (en) | 2014-09-03 | 2014-09-03 | A kind of adjustable continuous vacuum vacuum injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204072889U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105193461A (en) * | 2015-10-30 | 2015-12-30 | 中国人民解放军第二军医大学 | Endoscopic ultrasonography puncture needle vacuum extractor device with quantitative control negative pressure |
| CN105797223A (en) * | 2016-05-16 | 2016-07-27 | 北京迪玛克医药科技有限公司 | Aspirator |
| CN109846583A (en) * | 2019-03-27 | 2019-06-07 | 吴忠隐 | A kind of aortic stents window controlling system |
-
2014
- 2014-09-03 CN CN201420505315.7U patent/CN204072889U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105193461A (en) * | 2015-10-30 | 2015-12-30 | 中国人民解放军第二军医大学 | Endoscopic ultrasonography puncture needle vacuum extractor device with quantitative control negative pressure |
| CN105193461B (en) * | 2015-10-30 | 2018-07-20 | 中国人民解放军第二军医大学 | A kind of endoscopic ultrasonography puncture needle vacuum extractor device quantitatively controlling negative pressure |
| CN105797223A (en) * | 2016-05-16 | 2016-07-27 | 北京迪玛克医药科技有限公司 | Aspirator |
| CN105797223B (en) * | 2016-05-16 | 2018-03-30 | 北京迪玛克医药科技有限公司 | Aspirator |
| CN109846583A (en) * | 2019-03-27 | 2019-06-07 | 吴忠隐 | A kind of aortic stents window controlling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20160903 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |