CN202505829U - Suction negative pressure maintaining device with needle cylinder - Google Patents
Suction negative pressure maintaining device with needle cylinder Download PDFInfo
- Publication number
- CN202505829U CN202505829U CN2012200395089U CN201220039508U CN202505829U CN 202505829 U CN202505829 U CN 202505829U CN 2012200395089 U CN2012200395089 U CN 2012200395089U CN 201220039508 U CN201220039508 U CN 201220039508U CN 202505829 U CN202505829 U CN 202505829U
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- CN
- China
- Prior art keywords
- syringe
- push rod
- negative pressure
- suction negative
- needle cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The utility model relates to a suction negative pressure maintaining device with a needle cylinder, in particular to a device for maintaining suction negative pressure in a needle cylinder in the suction of liquid or soft tissues and belongs to the technical field of medical devices. The suction negative pressure maintaining device comprises the needle cylinder, a push rod and a negative pressure fixing device; the front end of the push rod is connected with a needle cylinder plunger; push rod flanges longitudinally extend from the front end of the push rod to the rear end of the push rod; each push rod flange is longitudinally provided with a notch at a distance; the needle cylinder plunger is movably sleeved in the needle cylinder; a fixed ring of the needle cylinder is clamped between fixed curling lugs and a fixed body of the negative pressure fixing device; and when the push rod is rotated, clamp bodies of the negative pressure fixing device is embedded in the notches of the push rod. The suction negative pressure maintaining device has the advantages that the structure is simple, compact and reasonable; and the stable suction negative pressure is maintained when the liquid or the soft tissues of a patient is sucked in the clinical treatment, so that the suction work in the needle cylinder is simply finished in a labor-saving manner, and the diagnosis and treatment works of medical care personnel are greatly facilitated.
Description
Technical field
This utility model relates to a kind of syringe suction negative pressure holdout device, specifically is used for the healthcare givers keeps syringe when pumping liquid or soft tissue suction negative pressure, belongs to technical field of medical instruments.
Background technology
Syringe be clinical in the most frequently used medical apparatus and instruments, it gets in the body through being commonly used to injectable drug, but also through being commonly used to pumping liquid or soft tissue, reaches the purpose of diagnosis or treatment.Syringe generally comprises syringe needle, syringe and push rod, and the staff outwards spurs push rod, has just formed the suction negative pressure in the syringe, and the suction negative pressure is come liquid or soft tissue from the syringe needle extraction.In stiff liquid of suction or parenchymal viscera soft tissue; Need under the very strong vacuum suction and just can finish the work; The staff keeps the stable ten minutes difficulty of syringe push rod, and staff's hands is shaken under long-time suction function easily, causes aspirating negative pressure and is difficult to keep.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point; Thereby a kind of syringe suction negative pressure holdout device is provided; Can help to keep stable suction negative pressure when the staff aspirates patient's liquid or soft tissue in clinical treatment, the syringe suction operation is accomplished in simple labour-saving.
According to the technical scheme that this utility model provides, syringe suction negative pressure holdout device comprises syringe, push rod and low-pressure holding device, and said syringe has hollow and discharges end, and retainer ring is established in said discharge end; Said push rod comprises push rod flange, push rod front end and putting back-end, and said push rod front end connects syringe plunger, and said push rod flange extends lengthwise into putting back-end from the push rod front end; Said push rod flange vertically whenever is provided with a breach at a distance from a segment distance; Said syringe plunger movable set is in syringe; Said low-pressure holding device comprises fixedly grasswort, fixed body and card body, and the said fixed body left and right sides is divided and connected a fixedly grasswort, and the left and right sides of fixed body center hole is connected a card body respectively with top edge; The retainer ring of said syringe is installed between the fixedly grasswort and fixed body of low-pressure holding device, and said card body is embedded in the breach.
Said low-pressure holding device lower end is provided with installing port.Said syringe outward flange is provided with the dosage Warning Mark.Said syringe plunger constitutes for software rubber.Said syringe top is provided with needle sleeve, and said needle sleeve is used to connect syringe needle.Said flange has four, and angle is 90 ° between per two.Said putting back-end diameter is greater than the syringe diameter.
Compared with present technology this utility model has the following advantages:
This utility model is simple, compact and reasonable for structure; In clinical treatment, keep stable suction negative pressure in suction patient's liquid or the soft tissue, the syringe suction operation is accomplished in simple labour-saving, greatly makes things convenient for medical worker's diagnosis and treatment work.
Description of drawings
Fig. 1 is this utility model structural representation.
Fig. 2 is the syringe front view.
Fig. 3 is the syringe upward view.
Fig. 4 is the push rod front view.
Fig. 5 is the low-pressure holding device front view.
Fig. 6 is the low-pressure holding device side view.
Description of reference numerals: 1-syringe, 1-1-hollow, 1-2 discharge end, 2-push rod, 2-1-push rod flange, 2-2-push rod front end, 2-3-putting back-end, 3-low-pressure holding device, 4-retainer ring, 5-syringe plunger, 6-breach, 7-fixedly grasswort, 8-fixed body, 9-card body, 10-installing port, 11-needle sleeve, 12-dosage Warning Mark.
The specific embodiment
Following this utility model will combine the embodiment in the accompanying drawing to further describe:
This utility model mainly comprises syringe 1, push rod 2 and low-pressure holding device 3, and said syringe 1 has hollow 1-1 and discharges terminal 1-2, and hollow 1-1 is used to deposit the liquid or the soft tissue of suction; The terminal 1-2 of said discharge establishes retainer ring 4 in the place; Said push rod 2 comprises push rod flange 2-1, push rod front end 2-2 and putting back-end 2-3, and push rod front end 2-2 connects syringe plunger 5, and said push rod flange 2-1 extends lengthwise into putting back-end 2-3 from push rod front end 2-2, whenever is provided with a breach 6 at a distance from a segment distance; Said syringe plunger 5 movable sets in syringe 1, the combination that can get loose between syringe plunger 5 and the syringe 1; Said low-pressure holding device 3 comprises fixedly grasswort 7, fixed body 8 and card body 9, and said fixed body 8 left and right sides are divided and connected a fixedly grasswort 7, and the left and right sides of fixed body 8 center holes is connected a card body 9 respectively with top edge; When syringe 1 suction beginning, the retainer ring of stating syringe 14 is installed between the fixedly grasswort 7 and fixed body 8 of low-pressure holding device 3, the card body 9 of low-pressure holding device 3 is embedded in the breach 6.
Said low-pressure holding device 3 lower ends are provided with installing port 10, and this installing port 10 is convenient to low-pressure holding device 3 is installed to push rod 2 from a side of push rod 2 opposite side.Said syringe 1 outward flange is provided with dosage Warning Mark 12, and said syringe 1 inside is transparent, can make things convenient for the staff to check the dosage of syringe 1 internal suction.Said syringe plunger 5 constitutes for software rubber.Said syringe 1 top is provided with needle sleeve 11, and said needle sleeve 11 is used for connecting the replacing syringe needle.Said push rod flange 2-1 has four, and angle is 90 ° between per two.Said putting back-end 2-3 diameter is greater than syringe 1 diameter.
The operation principle of this utility model is: when syringe 1 pumping liquid or soft tissue, from syringe 1, outwards spur push rod 2 earlier, make syringe 1 inside form powerful negative pressure.One side of low-pressure holding device 3 has installing port 10; Then low-pressure holding device 3 is installed to push rod 2 opposite sides from a side cover of push rod 2; The retainer ring 4 that syringe is discharged terminal 1-2 is stuck between the fixedly grasswort 7 and fixed body 8 of low-pressure holding device, fixes through the fixing restoring force of grasswort 7.When negative pressure reached predicted value, card body 9 inlay cards that the rotation push rod makes low-pressure holding device 3 centers were in the breach 6 of push rod flange 2-1.Low-pressure holding device 3 just maintains the relative position between push rod 2 and the syringe 1 like this, and the staff needn't keep suction to push rod 2 application of forces always.
Claims (8)
1. a syringe aspirates the negative pressure holdout device; Comprise syringe (1); Said syringe (1) has hollow (1-1) and discharges terminal (1-2), and said discharge terminal (1-2) locates to establish retainer ring (4), it is characterized in that: also comprise push rod (2) and low-pressure holding device (3); Said push rod (2) comprises push rod flange (2-1), push rod front end (2-2) and putting back-end (2-3); Said push rod front end (2-2) connects syringe plunger (5), and said push rod flange (2-1) extends lengthwise into putting back-end (2-3) from push rod front end (2-2), vertically whenever is provided with a breach (6) at a distance from a segment distance; Said syringe plunger (5) movable set is in syringe (1); Said low-pressure holding device (3) comprises fixedly grasswort (7), fixed body (8) and card body (9); Said fixed body (8) left and right sides is divided and is connected a fixedly grasswort (7), and the left and right sides of fixed body (8) center hole is connected a card body (9) respectively with top edge; The retainer ring (4) of said syringe (1) is installed between the fixedly grasswort (7) and fixed body (8) of low-pressure holding device (3), and said card body (9) is embedded in the breach (6).
2. syringe suction negative pressure holdout device as claimed in claim 1, it is characterized in that: said low-pressure holding device (3) lower end is provided with installing port (10).
3. syringe suction negative pressure holdout device as claimed in claim 1, it is characterized in that: said syringe (1) outward flange is provided with dosage Warning Mark (12).
4. syringe suction negative pressure holdout device as claimed in claim 1, it is characterized in that: said syringe plunger (5) constitutes for software rubber.
5. syringe suction negative pressure holdout device as claimed in claim 1, it is characterized in that: said syringe (1) top is provided with needle sleeve (11).
6. syringe suction negative pressure holdout device as claimed in claim 1, it is characterized in that: said push rod flange (2-1) has four, and angle is 90 ° between per two.
7. syringe suction negative pressure holdout device as claimed in claim 1, it is characterized in that: said putting back-end (2-3) diameter is greater than syringe (1) diameter.
8. syringe suction negative pressure holdout device as claimed in claim 1, it is characterized in that: said syringe (1) inside is transparent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200395089U CN202505829U (en) | 2012-02-08 | 2012-02-08 | Suction negative pressure maintaining device with needle cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200395089U CN202505829U (en) | 2012-02-08 | 2012-02-08 | Suction negative pressure maintaining device with needle cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202505829U true CN202505829U (en) | 2012-10-31 |
Family
ID=47058342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200395089U Expired - Fee Related CN202505829U (en) | 2012-02-08 | 2012-02-08 | Suction negative pressure maintaining device with needle cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202505829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107823758A (en) * | 2017-12-22 | 2018-03-23 | 天津哈娜好医材有限公司 | It is segmented expelling type injector and its application method |
-
2012
- 2012-02-08 CN CN2012200395089U patent/CN202505829U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107823758A (en) * | 2017-12-22 | 2018-03-23 | 天津哈娜好医材有限公司 | It is segmented expelling type injector and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20140208 |