CN204033386U - Pressure cylinder is added for bone cement injector - Google Patents
Pressure cylinder is added for bone cement injector Download PDFInfo
- Publication number
- CN204033386U CN204033386U CN201420366713.5U CN201420366713U CN204033386U CN 204033386 U CN204033386 U CN 204033386U CN 201420366713 U CN201420366713 U CN 201420366713U CN 204033386 U CN204033386 U CN 204033386U
- Authority
- CN
- China
- Prior art keywords
- push rod
- pressure cylinder
- cylindrical shell
- tailstock
- piston push
- 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
Links
Landscapes
- Prostheses (AREA)
Abstract
The utility model discloses and a kind ofly add pressure cylinder for bone cement injector, comprise the cylindrical shell for installing fluid under pressure, there is the outlet of pressurized fluid the front end of described cylindrical shell, the rear end of cylindrical shell is provided with the tailstock for installing piston push rod, inner barrel is provided with the piston head being installed in piston push rod end, described in the utility modelly add pressure cylinder for bone cement injector, by arranging spiral handspike in the inner barrel adding pressure cylinder, change thrust into torsion, make even injection on the one hand, reduce firmly on the other hand; The outer wall of described cylindrical shell is provided with the fin along barrel lenght direction, easily tailstock and cylindrical shell can be screwed up in conjunction with the groove on tailstock outer wall, the fin of twisting on bar surface in conjunction with handle can turn piston push rod easily, ensures the laborsaving of pressure process, avoids skidding; Air layer is set at the internal cavity top of tailstock simultaneously, makes to turn piston push rod more laborsaving, avoid skidding.
Description
Technical field
This utility model belongs to technical field of medical instruments, relates to a kind of bone cement injector accessory, and what be specifically related to is add pressure cylinder for bone cement injector.
Background technology
Bone cement injector is the medical apparatus and instruments for pyramid plastic operation, by percutaneous puncture under irradiation image guides, is expelled to by bone cement in diseased vertebral body, stablizes vertebral body, thus reach the object for the treatment of.
The rear end of bone cement injector arranges and adds pressure cylinder, the general pressure cylinder that adds is cylindrical drum, add pressure cylinder by the pressurizing piston bar on rotating tailstock, the piston adding pressure cylinder inside to be pushed ahead to provide pressure to adding pressure cylinder, because bone cement is in not exclusively liquid, there is certain viscosity, need during rotary presser piston rod to use very large torsion, because the general pressure cylinder that adds is the cylindrical drum that wall is smooth, producing during manual operation lives relatively slides, and needs the very large grip of staff just can avoid skidding; Also need to use very large power owing to skidding when installing and adding the tailstock of pressure cylinder.
But, in order to overcome above defect, make to add in pressure cylinder and continue to produce the pressure for needed for injection, pressurizing piston bar is generally designed to and adds pressure cylinder back seat and be spirally connected, by arranging handle in the rear end of pressurizing piston bar, during use, at the uniform velocity torsion is become thrust by rotary handle, and make to add pressure cylinder and produce continual and steady pressure, injection speed is even.But be smooth cylinder wall owing to adding pressure cylinder, also can there is skidding in rotary handle, be unfavorable for uniform and stable injection.
It is a kind of bone cement injector of the Chinese patent proposition of 200720008946.8 as application number, directly squeezed in vertebral body by spiral handspike by loading bone cement in injection tube, stable injection needs manually to twist hands handle uniformly, but hand-turning needs ceaselessly to convert finger position, so just make pressure transient, inject uneven; Meanwhile, by turning flat columniform hands needing by very large power, extremely inconvenient when large bolus injection.
Utility model content
Utility model object: the purpose of this utility model is to solve above the deficiencies in the prior art, provides a kind of convenient bone cement injector accessory gripped, and specifically a kind ofly adds pressure cylinder for bone cement injector.
Technical scheme: described in the utility modelly add pressure cylinder for bone cement injector, its objective is and like this to realize, a kind ofly add pressure cylinder for bone cement injector, comprise the cylindrical shell for installing fluid under pressure, there is the outlet of pressurized fluid the front end of described cylindrical shell, the rear end of cylindrical shell is provided with the tailstock for installing piston push rod, and inner barrel is provided with the piston head being installed in piston push rod end, and the outer wall of described cylindrical shell is provided with the fin being convenient to grip.
As optimization, the fin on described cylindrical shell is evenly distributed along barrel lenght direction, hand uniform force when can make again to turn piston push rod while emphasis is attractive in appearance.
As optimization, described piston push rod and tailstock are threaded connection, and the end of described piston push rod is provided with the handle perpendicular with piston push rod and twists bar, and the middle part that bar twisted by described piston push rod and handle is connected.
Because described tailstock and piston push rod are threaded connection, when promoting piston push rod, air enters from the position that is spirally connected and adds pressure cylinder inside, make piston head unlikely generation negative pressure in progradation, cause and promote piston rod difficulty, but spiro union portion position finite gap after all, be subject to the impact of piston push rod and tailstock threaded portion manufacturing process simultaneously, the gap of threaded joints is likely made to level off to zero, particularly when piston push rod is when adding pressure cylinder upper end, piston head is very little with the gap adding pressure cylinder upper end, promote piston push rod and may cause negative pressure, cause and turn piston push rod and comparatively require great effort, and speed is slow.For avoiding above factor, during design, especially adding pressure cylinder and tailstock connecting portion arranges air layer, it is specially, being provided with a circle gas tight damper at the internal cavity top of described tailstock, forming air layer between described gas tight damper and tailstock inwall, when turning piston push rod, air in air layer enters inner barrel by the gap of gas tight damper and barrel end, supplements push rod and to advance the negative pressure caused.
As optimization, the outer wall of described tailstock is provided with the groove being convenient to grip.
As optimization, the surface that bar twisted by described handle is provided with the fin being convenient to grip.
Beneficial effect: described in the utility modelly add pressure cylinder for bone cement injector, by arranging spiral handspike in the inner barrel adding pressure cylinder, changing thrust into torsion, making even injection on the one hand, reduce firmly on the other hand; The outer wall of described cylindrical shell is provided with the fin along barrel lenght direction, easily tailstock and cylindrical shell can be screwed up in conjunction with the groove on tailstock outer wall, the fin of twisting on bar surface in conjunction with handle can turn piston push rod easily, ensures the laborsaving of pressure process, avoids skidding; Air layer is set at the internal cavity top of tailstock simultaneously, makes to turn piston push rod more laborsaving, avoid skidding.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is sectional view of the present utility model;
Fig. 3 is the structural representation of cylindrical shell of the present utility model and tailstock.
Detailed description of the invention
In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment, only for explaining this utility model, does not form the restriction to this utility model protection domain.
See adding pressure cylinder for bone cement injector shown in Fig. 1-3, comprise the cylindrical shell 1 for installing fluid under pressure, there is the outlet 2 of pressurized fluid the front end of described cylindrical shell 1, the rear end of cylindrical shell 1 is provided with the tailstock 4 for installing piston push rod 3, described piston push rod 3 is threaded connection with tailstock 4, cylindrical shell 1 inside is provided with the piston head 5 being installed in piston push rod 3 end, and the end of piston push rod 3 is provided with the handle perpendicular with piston push rod 3 and twists bar 6, and the middle part that bar 6 twisted by described piston push rod 3 and handle is connected.
This utility model, in order to solve the problem adding pressure cylinder and in use require great effort and skid, is twisted bar 6 only to make in injection process that need turn handle twists bar 6 by being arranged handle at pressurization tube rear end, just can realize facilitating pressure process.
The outer wall of described cylindrical shell 1 is provided with the fin 7-1 being convenient to grip, and the fin 7-1 on cylindrical shell 1 is evenly distributed along barrel lenght direction; The outer wall of described tailstock 4 is provided with the groove 7-2 being convenient to grip; The surface that bar 6 twisted by described handle is provided with the fin 7-3 being convenient to grip.
The internal cavity top of described tailstock 4 is provided with a circle gas tight damper 8, air layer 9 is formed between described gas tight damper 8 and tailstock 3 inwall, when turning piston push rod 3, it is inner that air in air layer 9 enters cylindrical shell 1 by gas tight damper 8 and the gap of cylindrical shell 1 end, supplements push rod and to advance the negative pressure caused.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. one kind adds pressure cylinder for bone cement injector, comprise the cylindrical shell for installing fluid under pressure, there is the outlet of pressurized fluid the front end of described cylindrical shell, the rear end of cylindrical shell is provided with the tailstock for installing piston push rod, inner barrel is provided with the piston head being installed in piston push rod end, it is characterized in that, the outer wall of described cylindrical shell is provided with the fin being convenient to grip.
2. according to claim 1ly add pressure cylinder for bone cement injector, it is characterized in that, the fin on described cylindrical shell is evenly distributed along barrel lenght direction.
3. according to claim 1ly add pressure cylinder for bone cement injector, it is characterized in that, described piston push rod and tailstock are threaded connection, and the end of described piston push rod is provided with the handle perpendicular with piston push rod and twists bar, and the middle part that bar twisted by described piston push rod and handle is connected.
4. according to claim 1ly add pressure cylinder for bone cement injector, it is characterized in that, the internal cavity top of described tailstock is provided with a circle gas tight damper, forms air layer between described gas tight damper and tailstock inwall.
5. according to claim 1ly add pressure cylinder for bone cement injector, it is characterized in that, the outer wall of described tailstock is provided with the groove being convenient to grip.
6. according to claim 1ly add pressure cylinder for bone cement injector, it is characterized in that, the surface that bar twisted by described handle is provided with the fin being convenient to grip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420366713.5U CN204033386U (en) | 2014-07-03 | 2014-07-03 | Pressure cylinder is added for bone cement injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420366713.5U CN204033386U (en) | 2014-07-03 | 2014-07-03 | Pressure cylinder is added for bone cement injector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204033386U true CN204033386U (en) | 2014-12-24 |
Family
ID=52234110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420366713.5U Expired - Fee Related CN204033386U (en) | 2014-07-03 | 2014-07-03 | Pressure cylinder is added for bone cement injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204033386U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113304352A (en) * | 2020-08-18 | 2021-08-27 | 深圳市立心科学有限公司 | Injector for artificial bone material |
| CN113578697A (en) * | 2021-07-23 | 2021-11-02 | 信利光电股份有限公司 | Point electrically conductive syringe for silver thick liquid |
-
2014
- 2014-07-03 CN CN201420366713.5U patent/CN204033386U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113304352A (en) * | 2020-08-18 | 2021-08-27 | 深圳市立心科学有限公司 | Injector for artificial bone material |
| CN113304352B (en) * | 2020-08-18 | 2023-01-10 | 深圳市立心科学有限公司 | Injector for artificial bone material |
| CN113578697A (en) * | 2021-07-23 | 2021-11-02 | 信利光电股份有限公司 | Point electrically conductive syringe for silver thick liquid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103170038A (en) | Insulin injection pen | |
| CN204033386U (en) | Pressure cylinder is added for bone cement injector | |
| CN106346974B (en) | A kind of interchangeable sharp formula pen of modified form | |
| CN203762499U (en) | Liquid cosmetic pen with one-way pushing function | |
| CN203090099U (en) | Insulin injection pen | |
| CN106438330B (en) | Compression pump | |
| CN204864377U (en) | Boosting device of syringe | |
| CN203107885U (en) | Novel low-resistance injection syringe rubber plug | |
| CN201385489Y (en) | Novel pen tube | |
| CN203210929U (en) | Pencil rod | |
| CN202862898U (en) | Ink-charge injector | |
| CN202637621U (en) | Precise high-pressure medical syringe | |
| CN204488269U (en) | The miniature system of a ball pen machine fills device for ink | |
| CN206383706U (en) | A kind of interchangeable sharp formula pen of modified form | |
| CN204984254U (en) | Binary channels unit head structure | |
| CN204641154U (en) | Replaceable nib refill of gel-ink pen | |
| CN205416849U (en) | Moulding pen container | |
| CN203459233U (en) | Glue injection gun | |
| CN104369573A (en) | Refill capable of being used repeatedly by adding ink | |
| CN204472214U (en) | A kind of pen with cotton stripe for automatic absorbing ink | |
| CN202198032U (en) | Dual-head dual-purpose integrative pen with lip gloss and lipstick | |
| CN102716528A (en) | Precise high-pressure medical syringe | |
| CN206592763U (en) | Helium tank charging connector for aluminium foil balloon inflation | |
| CN221433763U (en) | Glue outlet structure capable of being replaced conveniently and being used in multiple ways | |
| CN202044595U (en) | Syringe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGSHA MAINO MEDICAL EQUIPMENT CO., LTD. Free format text: FORMER OWNER: WANG YIFENG Effective date: 20150525 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 210028 NANJING, JIANGSU PROVINCE TO: 410205 CHANGSHA, HUNAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20150525 Address after: 410205, Changsha, Tongzi, Hunan province Changsha high tech Development Zone, 229 west slope road, Hunan, China microelectronics research building, Room 201 Patentee after: Changsha McNeill medical instrument Ltd. Address before: 210028, room 8, building 98, 101 black camp, Xuanwu District, Nanjing, Jiangsu Patentee before: Wang Yifeng |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 |