CN104083184A - Bone cement injector - Google Patents
Bone cement injector Download PDFInfo
- Publication number
- CN104083184A CN104083184A CN201410371114.7A CN201410371114A CN104083184A CN 104083184 A CN104083184 A CN 104083184A CN 201410371114 A CN201410371114 A CN 201410371114A CN 104083184 A CN104083184 A CN 104083184A
- Authority
- CN
- China
- Prior art keywords
- screw rod
- bone cement
- body handle
- main body
- spanner
- 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.)
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Classifications
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- 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The invention relates to a bone cement injector. The bone cement injector comprises a body handle, a T-type handle, a screw rod, an injection tube and a bone cement conveying pipe, wherein the screw rod penetrates through the top of the body handle in a sleeved mode, the front of the screw rod penetrates into the injection tube in a sliding and sleeved mode, and the front end of the injection tube is connected with the bone cement conveying pipe in a butted mode. The bone cement injector is characterized in that a locking device for controlling the running state of the screw rod is further arranged in an upper cavity of the body handle, the screw rod locking device is composed of a control spanner and a driving force arm, the control spanner is connected to the screw rod in a sleeved mode, and the part, making contact with the screw rod, on the inner side of the control spanner is provided with internal threads corresponding to the screw rod; one end of the driving force arm is connected with the control spanner through a pin, and the other end of the driving force arm is connected with the inner wall of the top cavity of the body handle through a pin.
Description
Technical field
The present invention relates to a kind of injector for medical purpose, especially relate to a kind of for injecting the syringe of bone cement.
Background technology
In the market, the bone cement carrier that doctor uses is all taking imported product as main, but the follow-up investigation according to the applicant to this series products, find all kinds of bone cement injectors on market, there is dissimilar design deficiency of product in the most products in operation use procedure Zhong Ge manufacturer, and bring larger burden to patients ' expenses, also can bring various operation risks to doctor clinically.As disclosed a kind of percutaneous pyramid plastic operation apparatus in granted patent CN201139838Y, there is the function of injecting bone cement, very not convenient but its injection tube is loaded bone cement, do not possess the negative pressure of taking out and the function of front end suction bone cement.As the device for human metering bone cements in publication number CN1615110A, handle can pass through transverse compression and elastic deformation, make screw device switch to off working state from duty, can reach the function that bone cement sucks and exits, but this structure is in the situation that mechanical strength is larger, easily cause handle deformation and make screw device lost efficacy.As the bone cement injection device in publication number CN102933166A, the lock function of its handle portion drive part and injection screw, is to realize by complementary threads and the back-moving spring of handle and drive part, is a kind of latch-up structure of relative complex.
Along with medical science and technology technology constantly improves, and the continuous demand of medical market, due to doctor, for different patients, the instructions for use to bone cement and propulsion mode are had higher requirement.Therefore, the applicant recognizes: the structure of further improving bone cement injector, ensure that doctor's Cement syringe carries out bone cement injection to patient and has better operability, stability, the defect overcoming in existing homogeneous structure use just becomes further perfect R&D direction of this series products.
Summary of the invention
Object of the present invention: be intended to propose a kind of bone cement injector, it is simple in structure, easy operating and maintenance.
This bone cement injector, comprise main body handle, T-shaped handle, screw rod, injection tube and bone cement conveyance conduit, described screw rod is set on main body handle top, the anterior slip of screw rod is set in injection tube, injection tube front end docks with bone cement conveyance conduit, it is characterized in that: in described main body handle upper chamber, be also provided with the locking system of controlling screw rod running status, described screw rod locking system is by controlling spanner and drive arm forms, described control spanner is socketed on screw rod, controls spanner inner side and is provided with the female thread corresponding with screw rod with screw rod contact site; Described drive arm one end is connected with control spanner by pin, and the other end is connected with main body handle top cavity inner wall by pin.
Described control spanner is " P " type structure, and its ring part is socketed in outside screw rod, and its long limit extends to main body handle outer.
Described main body handle top side is provided with the notch moving up and down for controlling the long limit of spanner.
This bone cement injector proposing according to above technical scheme, when use, " P " type control spanner is socketed on screw rod, handle control spanner in the time moving up and down, utilize ring part inner side that drive arm makes to control spanner thereupon with screw rod laminating or away from, and utilize the female thread of ring part inner side and the external screw thread interlock of screw rod to control the rotation of screw rod or the kinestate of pull.Although this screw rod locking device is simple in structure, can realize the effect of controlling screw motion state, less connector also greatly reduces its fault rate, has also reduced use difficulty simultaneously, improves the convenience that switches screw motion state.
Brief description of the drawings
Fig. 1 is overall structure schematic diagram of the present invention;
Fig. 2 is cross-sectional view of the present invention;
Fig. 3 is main body handle profile structural representation of the present invention;
Fig. 4 is main body handle profile structure partial enlarged drawing of the present invention;
Fig. 5 is lockup state schematic diagram of the present invention;
Fig. 6 is open state schematic diagram of the present invention.
1-bone cement conveyance conduit 2-injection tube 3-controls spanner 4-screw rod 5-T type handle 6-main body handle 7.1-pin 7.2-pin 8-female thread 9-drive arm 10-notch.
Detailed description of the invention
We are described in further detail this bone cement injector with concrete example by reference to the accompanying drawings below, in the hope of more clear its structure and the occupation mode set forth.
This bone cement injector as shown in the figure, comprise main body handle 6, T-shaped handle 5, screw rod 4, injection tube 2 and bone cement conveyance conduit 1, described screw rod 4 is set on main body handle 6 tops, the anterior slip of screw rod 4 is set in injection tube 2, injection tube 2 front ends dock with bone cement conveyance conduit 1, it is characterized in that: in described main body handle 6 upper chamber, be also provided with the locking system of controlling screw rod running status, described screw rod locking system is by controlling spanner 3 and drive arm 9 forms, described control spanner 3 is socketed on screw rod 4, control spanner 3 inner sides and be provided with the female thread corresponding with screw rod 48, described drive arm 9 one end are connected with main body handle 6 apex cavity inwalls by pin 7.1, and the other end is connected with control spanner 3 by pin 7.2.
Described control spanner 3 is " P " type structure, and its ring part is socketed in outside screw rod 4, and described female thread 8 is arranged on ring part top, and its long limit extends to main body handle 6 outsides.
Described main body handle 6 top-side are provided with the notch 10 moving up and down for controlling the long limit of spanner 3.
When use, " P " type control spanner 3 is socketed on screw rod 4, in the process moving down at operation control spanner 3, the ring part of " P " type control spanner 3 is outwards pushed away screw rod 4 by the active force that drive arm 9 is controlled spanner 3, now, the female thread 8 that is arranged on ring part inside top does not contact with the external screw thread of screw rod 4 outer walls, and now, screw rod 4 is open state, can make screw rod 4 front and back level runs by the T-shaped handle 5 of pull, by bone cement suction injection tube 2 and discharge unnecessary air.
In the process moving up at operation control spanner 3, drive arm 9 is controlled the active force of spanner 3 and inwardly pushes the ring part of " P " type control spanner 3 to screw rod 4, now, be arranged on the external screw thread interlock of female thread 8 with screw rod 4 outer walls of ring part inside top, now, screw rod 4 is lock-out state, only has by rotating T-shaped handle 5 screw rods 4 and could control screw rod 4 seesawing in injection tube 2.Can stably exert pressure bone cement is pushed in bone cement conveyance conduit 1 from injection tube 2 by rotary screw 4, particularly be applicable to this pressure that needs and inject greatly environment.
Switched and can be changed that screw rod 4 rotates or the kinestate of pull by a simple key, reduced the operating procedure of equipment in operation process, reduced doctor's working strength, meanwhile, switching device shifter simple in structure is also beneficial to maintenance and the fault of equipment and gets rid of.
Above are only the preferred embodiments of the present invention, the technical scheme of proposition is not limited to the given content of embodiment.For those skilled in the art, in the technical scope proposing in the present invention, can there be various variations and change all in protection domain of the present invention.
Claims (3)
1. a bone cement injector, comprise main body handle (6), T-shaped handle (5), screw rod (4), injection tube (2) and bone cement conveyance conduit (1), described screw rod (4) is set on main body handle (6) top, the anterior slip of screw rod (4) is set in injection tube (2), injection tube (2) front end docks with bone cement conveyance conduit (1), it is characterized in that: in described main body handle (6) upper chamber, be also provided with the locking system of controlling screw rod running status, described screw rod locking system is by controlling spanner (3) and drive arm (9) forms, described control spanner (3) is socketed on screw rod (4), control spanner (3) inner side and be provided with the female thread (8) corresponding with screw rod (4), described drive arm (9) one end is connected with main body handle (6) apex cavity inwall by pin (7.1), and the other end is connected with control spanner (3) by pin (7.2).
2. a kind of bone cement injector as claimed in claim 1, it is characterized in that: described control spanner (3) is " P " type structure, its ring part is socketed in outside screw rod (4), described female thread (8) is arranged on ring part top, and its long limit extends to main body handle (6) outside.
3. a kind of bone cement injector as claimed in claim 1 or 2, is characterized in that: described main body handle (6) top-side is provided with the notch (10) moving up and down for controlling the long limit of spanner (3).
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 true CN104083184A (en) | 2014-10-08 |
| CN104083184B CN104083184B (en) | 2017-05-31 |
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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 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101404947A (en) * | 2006-03-20 | 2009-04-08 | 阿克罗斯股份公司 | Instrument for insertion of solid filling materials in a bone cavity |
| US20100094307A1 (en) * | 2001-02-12 | 2010-04-15 | Evans Avery J | Multi-use surgical cement dispenser apparatus and kit for same |
| US20110306983A1 (en) * | 2010-06-11 | 2011-12-15 | O'halloran Damien | Devices For Delivering Bone Filler Material And Associated Method of Use |
| CN102933166A (en) * | 2010-11-16 | 2013-02-13 | 泰克尼迈德公司 | Device for the injection of bone cement, comprising an overpressure locking system |
| US20130218165A1 (en) * | 2010-09-28 | 2013-08-22 | Terumo Kabushiki Kaisha | Puncture needle for injecting bone cement, and method for producing same |
| US20140039449A1 (en) * | 2011-06-10 | 2014-02-06 | Ryan Agard | 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
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100094307A1 (en) * | 2001-02-12 | 2010-04-15 | Evans Avery J | Multi-use surgical cement dispenser apparatus and kit for same |
| CN101404947A (en) * | 2006-03-20 | 2009-04-08 | 阿克罗斯股份公司 | Instrument for insertion of solid filling materials in a bone cavity |
| US20110306983A1 (en) * | 2010-06-11 | 2011-12-15 | O'halloran Damien | Devices For Delivering Bone Filler Material And Associated Method of Use |
| US20130218165A1 (en) * | 2010-09-28 | 2013-08-22 | Terumo Kabushiki Kaisha | Puncture needle for injecting bone cement, and method for producing same |
| CN102933166A (en) * | 2010-11-16 | 2013-02-13 | 泰克尼迈德公司 | Device for the injection of bone cement, comprising an overpressure locking system |
| US20140039449A1 (en) * | 2011-06-10 | 2014-02-06 | Ryan Agard | 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104083184B (en) | 2017-05-31 |
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