CN104083184B - A kind of bone cement injector - Google Patents
A kind of bone cement injector Download PDFInfo
- Publication number
- CN104083184B CN104083184B CN201410371114.7A CN201410371114A CN104083184B CN 104083184 B CN104083184 B CN 104083184B CN 201410371114 A CN201410371114 A CN 201410371114A CN 104083184 B CN104083184 B CN 104083184B
- Authority
- CN
- China
- Prior art keywords
- screw rod
- spanner
- main body
- control spanner
- bone cement
- 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.)
- Active
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/8802—Equipment for handling bone cement or other fluid fillers
- A61B17/8805—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it
- A61B17/8825—Equipment for handling bone cement or other fluid fillers for introducing fluid filler into bone or extracting it characterised by syringe details
Abstract
The present invention relates to a kind of bone cement injector, including main body handle, T-shaped handle, screw rod, injection tube and bone cement conveyance conduit, the screw rod is set on main body handle top, and anterior slip of screw rod is set in injection tube, docked with bone cement conveyance conduit injection tube front end, it is characterised in that：The locking system of control screw rod running status is additionally provided with the main body handle upper portion cavity, the screw rod locking system is made up of control spanner and drive arm, the control spanner is socketed on screw rod, and control spanner inner side is provided with internal thread corresponding with screw rod with screw rod contact site；Described drive arm one end is connected by pin with control spanner, and the other end is connected by pin with main body handle top cavity inner wall.
Description
Technical field
The present invention relates to a kind of injector for medical purpose, more particularly, to a kind of syringe for injecting bone cement.
Background technology
In the market, the bone cement conveyer that doctor uses based on imported product, but according to the applicant to this
The follow-up investigation of class product, finds all kinds of bone cement injectors commercially, each manufacturer during use of performing the operation
There is different types of design deficiency of product in most products, and bring larger burden to patients ' expenses, clinically also can be to doctor
Green tape carrys out various operation risks.A kind of percutaneous vertebroplasty operating theater instruments as disclosed in granted patent number CN201139838Y,
With the function of injecting bone cement, but its injection tube filling bone cement is very not convenient, does not possess and takes out negative pressure and front end is inhaled
Enter the function of bone cement.Such as the device for human metering bone cements in publication number CN1615110A, handle can be by horizontal stroke
The elastic deformation to compression, makes screw device switch to off working state from working condition, can reach bone cement suction and move back
The function of going out, but this structure is in the case where mechanical strength is larger, easily causes handle deformation and screw device is failed.
Such as the bone cement injection device in publication number CN102933166A, the locking work(of its handle portion drive part and injection screw
Can, it is to be realized with back-moving spring by the complementary threads of handle and drive part, it is a kind of relative complex latch-up structure.
As medical science and technology technology is constantly improved, and medical market continuous demand, due to doctor be directed to different patients
Use requirement and propulsion mode to bone cement propose requirement higher.Therefore, applicants have realised that：Further improve bone
The structure of cement syringe, it is ensured that doctor's Cement syringe carries out bone cement injection to patient has preferably operation
Property, stability, overcome defect in existing homogeneous structure use just to turn into the further perfect R＆D direction of such product.
The content of the invention
The purpose of the present invention：A kind of bone cement injector is directed to, its simple structure, it is easy to operation and maintenance.
This bone cement injector, including main body handle, T-shaped handle, screw rod, injection tube and bone cement conveyance conduit, it is described
Screw rod is set on main body handle top, and anterior slip of screw rod is set in injection tube, injection tube front end and bone cement conveyance conduit
Docking, it is characterised in that：The locking system of control screw rod running status, the spiral shell are additionally provided with the main body handle upper portion cavity
Lever lock locking apparatus are made up of control spanner and drive arm, and the control spanner is socketed on screw rod, controls spanner inner side and screw rod
Contact site is provided with internal thread corresponding with screw rod；Described drive arm one end is connected by pin with control spanner, and the other end passes through
Pin is connected with main body handle top cavity inner wall.
Described to control spanner for " P " type structure, its ring part is socketed in outside screw rod, and its side long is extended to outside main body handle
Portion.
The main body handle top side is provided with the notch moved up and down for control spanner side long.
According to this bone cement injector that above technical scheme is proposed, " P " type control spanner is socketed in spiral shell when using
On bar, cause to control using drive arm when moving up and down to be pasted with screw rod therewith on the inside of the ring part of spanner control spanner is manipulated
Close or away from and being engaged with the external screw thread of screw rod using the internal thread on the inside of ring part and control the rotation of screw rod or the fortune of pull
Dynamic state.Although this screw lock device simple structure, can realize controlling the effect of screw motion state, less company
Fitting makes its fault rate also be greatly lowered, while also reduce using difficulty, improves the convenience of switching screw motion state.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is cross-sectional view of the invention；
Fig. 3 is main body handle profile structural representation of the invention；
Fig. 4 is main body handle profile structure partial enlarged drawing of the invention；
Fig. 5 is lockup state schematic diagram of the invention；
Fig. 6 is open state schematic diagram of the invention.
1- bone cement conveyance conduit 2- injection tubes 3- control spanner 4- screw rod 5-T type handle 6- main body handles 7.1- pins
Nail 7.2- pin 8- internal thread 9- drive arm 10- notches.
Specific embodiment
We are described in further detail with reference to accompanying drawing and specific example to this bone cement injector below,
Its structure and occupation mode are expressly illustrated in the hope of apparent.
This bone cement injector as depicted, including main body handle 6, T-shaped handle 5, screw rod 4, injection tube 2 and bone cement
Conveyance conduit 1, the screw rod 4 is set on the top of main body handle 6, and anterior slip of screw rod 4 is set in injection tube 2, before injection tube 2
Docked with bone cement conveyance conduit 1 at end, it is characterised in that：Control screw rod operation is additionally provided with the upper chamber of main body handle 6
The locking system of state, the screw rod locking system is made up of control spanner 3 and drive arm 9, and the control spanner 3 is socketed in spiral shell
On bar 4, the inner side of control spanner 3 is provided with internal thread 8 corresponding with screw rod 4；Described one end of drive arm 9 passes through pin 7.1 and main body
The apex cavity inwall of handle 6 is connected, and the other end is connected by pin 7.2 with control spanner 3.
The control spanner 3 is " P " type structure, and its ring part is socketed in outside screw rod 4, and the internal thread 8 is arranged on annular
Portion top, its side long is extended to outside main body handle 6.
The top-side of main body handle 6 is provided with the notch 10 moved up and down for control spanner 3 side long.
" P " type control spanner 3 is socketed on screw rod 4 when using, during operational control spanner 3 is moved down,
The ring part of " P " type control spanner 3 is outwardly away from screw rod 4 by the active force that drive arm 9 is controlled spanner 3, now, is arranged on
The internal thread 8 of ring part inside top and the external screw thread of the outer wall of screw rod 4 and not in contact with now, screw rod 4 is open state, can be with
The anterior-posterior horizontal of screw rod 4 is run by the T-shaped handle 5 of pull, bone cement is pumped into injection tube 2 and additional air is discharged.
During operational control spanner 3 is moved up, drive arm 9 is controlled the active force of spanner 3 by " P " type control
The ring part of spanner processed 3 inwardly pushes screw rod 4 to, now, is arranged on the internal thread 8 and the outer wall of screw rod 4 of ring part inside top
External screw thread is engaged, and now, screw rod 4 is lock-out state, only could control screw rod 4 in injection tube 2 by rotating the screw rod 4 of T-shaped handle 5
Interior moves forward and backward.Pressure can stably be applied by rotary screw 4 bone cement is pushed bone cement conveying from injection tube 2
In pipeline 1, it is particularly suitable for this needing pressure greatly to inject environment.
By simple one key switching can change screw rod 4 rotate or pull motion state, in surgical procedure reduce
The operating procedure of equipment, reduces the working strength of doctor, meanwhile, the switching device of simple structure is also beneficial to the maintenance of equipment
And failture evacuation.
Above are only the preferred embodiments of the present invention, the technical scheme of proposition is not limited to interior given by embodiment
Hold.For those skilled in the art, can there are various change and change to exist in technical scope proposed by the present invention
In the scope of the present invention.
Claims (2)
1. the conveying of a kind of bone cement injector, including main body handle (6), T-shaped handle (5), screw rod (4), injection tube (2) and bone cement
Pipeline (1), the screw rod (4) is set on main body handle (6) top, and anterior slip of screw rod (4) is set in injection tube (2), note
Docked with bone cement conveyance conduit (1) shooting cylinder (2) front end, it is characterised in that：It is additionally provided with main body handle (6) upper chamber
The locking system of screw rod running status is controlled, the screw rod locking system is made up of control spanner (3) and drive arm (9), described
Control spanner (3) is socketed on screw rod (4), and control spanner (3) inner side is provided with internal thread (8) corresponding with screw rod (4)；The drive
The arm of force (9) one end is connected by pin (7.1) with main body handle (6) apex cavity inwall, and the other end is by pin (7.2) and control
Spanner (3) connection processed；
Control spanner (3) is " P " type structure, and its ring part is socketed in screw rod (4) outward, and the internal thread (8) is arranged on ring
Shape portion top, it is outside that its side long extends to main body handle (6)；
During operating control spanner (3) to move down, the drive arm (9) is by control spanner (3)
Control the ring part of spanner (3) to be outwardly away from the screw rod (4) described in active force, be arranged on the annular of control spanner (3)
The internal thread (8) of portion's inside top is with the external screw thread of screw rod (4) outer wall and not in contact with screw rod (4) is open state；
During operating control spanner (3) to move up, the drive arm (9) is by control spanner (3)
Control the ring part of spanner (3) inwardly to push the screw rod (4) to described in active force, be arranged on the annular of control spanner (3)
The internal thread 8 of portion's inside top is engaged with the external screw thread of screw rod (4) outer wall, and screw rod (4) is lock-out state.
2. a kind of bone cement injector as claimed in claim 1, it is characterised in that：Main body handle (6) top-side sets
There is the notch (10) moved up and down for control spanner (3) side long.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410371114.7A CN104083184B (en) | 2014-07-31 | 2014-07-31 | A kind of bone cement injector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410371114.7A CN104083184B (en) | 2014-07-31 | 2014-07-31 | A kind of bone cement injector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104083184A CN104083184A (en) | 2014-10-08 |
| CN104083184B true CN104083184B (en) | 2017-05-31 |
Family
ID=51631022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410371114.7A Active CN104083184B (en) | 2014-07-31 | 2014-07-31 | A kind of bone cement injector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104083184B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2002335620B2 (en) * | 2001-02-12 | 2005-09-08 | Modmed Therapeutics, Inc | Multi-use surgical cement dispenser apparatus and kit for same |
| EP1836983A1 (en) * | 2006-03-20 | 2007-09-26 | Bruno Sidler | Instrument for insertion of solid filling materials in a bone cavity |
| US8568420B2 (en) * | 2010-06-11 | 2013-10-29 | Globus Medical, Inc. | Devices for delivering bone filler material and associated method of use |
| WO2012043247A1 (en) * | 2010-09-28 | 2012-04-05 | テルモ株式会社 | Puncture needle for injecting bone cement, and method for producing same |
| FR2967344B1 (en) * | 2010-11-16 | 2013-11-08 | Teknimed | DEVICE FOR THE INJECTION OF BONE CEMENT COMPRISING AN OVER-PRESSURE BLOCKING SYSTEM |
| US8603096B2 (en) * | 2011-06-10 | 2013-12-10 | Globus Medical, Inc. | Biomaterial dispensing device |
| CN203970528U (en) * | 2014-07-31 | 2014-12-03 | 上海凯利泰医疗科技股份有限公司 | A kind of bone cement injector |
-
2014
- 2014-07-31 CN CN201410371114.7A patent/CN104083184B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104083184A (en) | 2014-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105492047A (en) | Vacuum system for a piston and syringe interface | |
| CN103028153B (en) | Medical pressurizing instrument | |
| CN101695593B (en) | Core bar-free power injector | |
| CN104083184B (en) | A kind of bone cement injector | |
| CN204275223U (en) | Clinical anesthesia section is with supplying medicine anesthesia outfit | |
| CN201658496U (en) | Comprehensive first-aid platform beside movable bed | |
| CN204543140U (en) | double syringe | |
| CN204446953U (en) | A kind of balloon dilatation pressure pump | |
| CN204219500U (en) | Gynecological nursing rinser | |
| CN206045121U (en) | A kind of endotracheal tube of the easy inflation/deflation of safety | |
| CN203970528U (en) | A kind of bone cement injector | |
| CN103462704A (en) | Joint valve | |
| CN105342687B (en) | Bone cement injector for minimally invasive surgery | |
| CN109481792A (en) | A kind of Surgical Operating Room continued narcosis device | |
| CN207707991U (en) | A kind of gynaecology's Multifunctional curet | |
| CN204734539U (en) | Bone cement pusher | |
| CN103055392A (en) | Dual-channel connection respirator type tracheal cannula | |
| CN211188661U (en) | Visual trachea cannula system | |
| CN204017063U (en) | A kind of infant's respiration machine | |
| CN204364462U (en) | A kind of Cardiological medicines-administering bottle | |
| CN106955149A (en) | Bone cement injector | |
| CN105250013A (en) | Sucker type foreign matter extractor | |
| CN104856752A (en) | Bone cement pushing device | |
| CN204932509U (en) | Respiratory Medicine oxygen uptake pressue device | |
| CN201551678U (en) | Core-rod-free electrical injector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |