CN101773694B - Fast-retractable type pressurizing injector - Google Patents
Fast-retractable type pressurizing injector Download PDFInfo
- Publication number
- CN101773694B CN101773694B CN2010100100251A CN201010010025A CN101773694B CN 101773694 B CN101773694 B CN 101773694B CN 2010100100251 A CN2010100100251 A CN 2010100100251A CN 201010010025 A CN201010010025 A CN 201010010025A CN 101773694 B CN101773694 B CN 101773694B
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- clasp nut
- syringe
- screw nut
- following
- cam ring
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Abstract
The invention provides a fast-retractable type pressurizing injector. A spiral push rod is arranged in an injection tube, an inner cam sleeve is embedded at the back end of the injection tube, a left lug boss and a right lug boss are symmetrically arranged on the inner wall of the inner cam sleeve, an upper opening screw nut and a lower opening screw nut are arranged on the spiral push rod and are respectively arranged in the inner cam sleeve, the upper ends of the outer edges of the middle parts of the upper opening screw nut and the lower opening screw nut are respectively provided with an upper convex baffle and a lower convex baffle (11), the upper convex baffle and the lower convex baffle are respectively and correspondingly butted against the left lug boss and the right lug boss, both ends of the upper opening screw nut and the lower opening screw nut are respectively in butt joint, and springs are respectively arranged at the joints of both ends of the upper opening screw nut and the lower opening screw nut. The invention has the advantages of scientific and reasonable design, original effect, good practical effect and better development prospects, and is suitable for clinic application.
Description
Technical field
What the present invention relates to is syringe, and concrete is a kind of fast-retractable type pressurizing injector.
Background technology
The bone cement syringe that is used for using in operation on heart administration or joint replacement surgery and the bone surgery is special-purpose syringe.What present this special syringe adopted is screw rod and rackwork, and this syringe can be realized the purpose of vasopressing injection, and apparent, not only to the requirement of strength height of material, the accuracy of manufacture is also high for this syringe, and reliability will be got well.Yet the screw rod rack type syringe that uses is not attained perfection on the accuracy of manufacture at present, and especially reliability is desirable not to the utmost especially, and the yet inconvenience of using and operate.
In operation on heart and joint replacement surgery, also do not have good reliability, precision height at present, scientifically prepare, use handy special syringe.
Summary of the invention
The objective of the invention is to exist above-mentioned shortcoming and problem, and good reliability, precision height are provided, scientifically prepare, use handy a kind of fast-retractable type pressurizing injector at the special syringe that in operation on heart and joint replacement surgery, uses at present.
The technical scheme that adopts is:
A kind of fast-retractable type pressurizing injector comprises syringe, sealing ring, spiral handspike, cam ring cover, goes up clasp nut, spring and following clasp nut; Described syringe is main the connection and function part, and the front end of syringe is outlet, and spiral handspike is installed in the syringe, and the groove of spiral handspike front end is equipped with sealing ring, and sealing ring and syringe closely cooperate; Its construction features is:
A cam ring cover is inlayed in the rear end of syringe, the wall of the excircle of cam ring cover is fixedlyed connected with the inwall of syringe, the inwall of cam ring cover is symmetrically arranged with left boss and right boss respectively, a left side, right boss and cam ring cover are structure as a whole, the above-mentioned clasp nut of going up is installed on the spiral handspike with following clasp nut, on, following clasp nut is installed in respectively in the cam ring cover, the upper end, outer at last clasp nut middle part is provided with the epirelief retaining, the lower end of the outer at following clasp nut middle part is provided with down protruding retaining, on, down protruding retaining is corresponding respectively and left, right boss is replaced mutually, the two ends of last clasp nut and following clasp nut contact butt joint respectively, last, two end in contact joints of following clasp nut are equiped with the identical spring of structure respectively, on the spring, following two ends are respectively with last, following clasp nut is fixedly connected, realize rotation and rectilinear motion, realize sealing and guiding cavity.
Operating procedure of the present invention and working mechanism:
Syringe body is one of main connection and workpiece, the cam ring cover is connected with the big end of injecting body by the method for screw thread or welding, be pressed into spring formation parts between last clasp nut, the following clasp nut and contact with the cam face of cam ring cover, spiral handspike screws in the syringe body by upper and lower clasp nut.During work, be rotated counterclockwise the cam ring cover upper and lower clasp nut is opened under spring action, nut is separated with spiral handspike, at this moment spur spiral handspike and suck liquid by injector head; When injecting liquid, the cam ring cover that turns clockwise makes upper and lower clasp nut compression spring closure be in the state of being threaded with spiral handspike, at this moment, clockwise rotates spiral handspike again liquid is flowed out with certain pressure, reaches scheduled volume.Rollback then needed to rotate augering screw and rotated rollback through upper and lower clasp nut guiding because augering screw is in upper and lower clasp nut and contacts mated condition this moment.When the rotation augering screw needs quick rollback, augering screw and upper and lower clasp nut are in disengaged position, at this moment be rotated counterclockwise the cam ring cover, upper and lower clasp nut separates under spring action, upper and lower clasp nut separates with spiral handspike, and spiral handspike is moving the purpose that promptly realizes snap back after rapid under manually acting on backward.
Characteristics of the present invention:
1, the screw press syringe has suction and controlled vasopressing injection function, and is reusable, cheap.
2, the precision height is simple in structure, and is easy to operate, stable performance, reliable.
Design science of the present invention, reasonable, original, practical function is excellent, has development prospect preferably.Suitable clinical use.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is that the A-A of Fig. 1 is to cross-sectional schematic.
The specific embodiment
A kind of fast-retractable type pressurizing injector comprises syringe 1, sealing ring 2, spiral handspike 3, cam ring cover 4, goes up clasp nut 5, spring 6 and following clasp nut 7; Described syringe 1 is main the connection and function part, and the front end of syringe 1 is outlet, and spiral handspike 3 is installed in the syringe 1, and the groove of spiral handspike front end is equipped with sealing ring 2, and sealing ring 2 closely cooperates with syringe 1;
Claims (1)
1. a fast-retractable type pressurizing injector comprises syringe (1), sealing ring (2), spiral handspike (3), cam ring cover (4), goes up clasp nut (5), spring (6) and following clasp nut (7); The front end of described syringe (1) is outlet, and spiral handspike (3) is installed in the syringe (1), and the groove of spiral handspike front end is equipped with described sealing ring (2), and sealing ring (2) closely cooperates with syringe (1); It is characterized in that:
A described cam ring cover (4) is inlayed in the rear end of syringe (1), the wall of the excircle of cam ring cover (4) is fixedlyed connected with the inwall of syringe (1), the inwall of cam ring cover (4) is symmetrically arranged with left boss (9) and right boss (8) respectively, left side boss (9) and right boss (8) are structure as a whole with cam ring cover (4), above-mentioned upward clasp nut (5) and following clasp nut (7) are installed on the spiral handspike (3), last clasp nut (5) and following clasp nut (7) are installed in respectively in the cam ring cover (4), the upper end, outer at last clasp nut (5) middle part is provided with epirelief retaining (10), the lower end of the outer at following clasp nut (7) middle part is provided with down protruding retaining (11), epirelief retaining (10) is replaced with left boss (9) and right boss (8) mutually with protruding retaining (11) is corresponding respectively down, last clasp nut (5) contacts butt joint respectively with the two ends of following clasp nut (7), two end in contact joints at last clasp nut (5) and following clasp nut (7) are equiped with the identical spring of structure (6) respectively, on the spring (6), fixedly connected with following clasp nut (7) with last clasp nut (5) respectively in following two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100100251A CN101773694B (en) | 2010-01-06 | 2010-01-06 | Fast-retractable type pressurizing injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010100100251A CN101773694B (en) | 2010-01-06 | 2010-01-06 | Fast-retractable type pressurizing injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101773694A CN101773694A (en) | 2010-07-14 |
| CN101773694B true CN101773694B (en) | 2011-12-07 |
Family
ID=42510367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010100100251A Expired - Fee Related CN101773694B (en) | 2010-01-06 | 2010-01-06 | Fast-retractable type pressurizing injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101773694B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102188764B (en) * | 2011-03-14 | 2015-12-02 | 张亚根 | A kind of pressure injector and adnexa |
| CN102499740B (en) * | 2011-10-28 | 2014-01-29 | 周建明 | Centrum balloon dilation forming system |
| CN106975125A (en) * | 2017-04-28 | 2017-07-25 | 黄河科技学院 | A kind of disposable adjustable syringe |
| CN107281585A (en) * | 2017-08-04 | 2017-10-24 | 王立峰 | A kind of Intravenous Anesthesia device of accurate control dosage |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2142023Y (en) * | 1992-11-09 | 1993-09-15 | 郭仲明 | Disposable syringe |
| CN2197069Y (en) * | 1994-04-12 | 1995-05-17 | 王洪军 | Injector with vertical open and close |
| CN2477194Y (en) * | 2001-03-24 | 2002-02-20 | 周晓力 | High pressure syringe |
| CN2724724Y (en) * | 2004-09-08 | 2005-09-14 | 张礼国 | Pressing injection device with screwed joint |
-
2010
- 2010-01-06 CN CN2010100100251A patent/CN101773694B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2142023Y (en) * | 1992-11-09 | 1993-09-15 | 郭仲明 | Disposable syringe |
| CN2197069Y (en) * | 1994-04-12 | 1995-05-17 | 王洪军 | Injector with vertical open and close |
| CN2477194Y (en) * | 2001-03-24 | 2002-02-20 | 周晓力 | High pressure syringe |
| CN2724724Y (en) * | 2004-09-08 | 2005-09-14 | 张礼国 | Pressing injection device with screwed joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101773694A (en) | 2010-07-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20111207 Termination date: 20130106 |
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| CF01 | Termination of patent right due to non-payment of annual fee |