CN203234810U - Spiral pressurization needle cylinder for vertebral body forming operation - Google Patents
Spiral pressurization needle cylinder for vertebral body forming operation Download PDFInfo
- Publication number
- CN203234810U CN203234810U CN 201320209147 CN201320209147U CN203234810U CN 203234810 U CN203234810 U CN 203234810U CN 201320209147 CN201320209147 CN 201320209147 CN 201320209147 U CN201320209147 U CN 201320209147U CN 203234810 U CN203234810 U CN 203234810U
- Authority
- CN
- China
- Prior art keywords
- valve
- needle
- syringe
- pressure
- rear end
- 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 - Lifetime
Links
Images
Landscapes
- Prostheses (AREA)
- Surgical Instruments (AREA)
Abstract
The utility model discloses a spiral pressurization needle cylinder for a vertebral body forming operation. The spiral pressurization needle cylinder for the vertebral body forming operation comprises a pressurization needle cylinder body, wherein a constant-pressure piston is arranged in an inner cavity tube of the pressurization needle cylinder body, a piston rod is connected at the rear end of the constant-pressure piston, a handle is arranged at the rear end, extending out of the outer side of the inner cavity tube, of the piston rod, a valve cavity is formed in the constant-pressure piston, and a pressure relief channel which is communicated with the inner cavity tube is formed in the rear end of the valve cavity. A valve body is arranged in the valve cavity, a pressure relief hole is formed in the valve body, a valve needle is arranged in the pressure relief hole, the valve needle comprises a needle rod and a needle head, a pressure relief gap communicated with the pressure relief hole and the valve cavity is formed in the valve body, a valve core ejection tight spring is arranged at the rear end of the valve needle, and under the pressure of the valve core ejection right spring, the needle head is abutted against the valve body to close the pressure relief gap. The spiral pressurization needle cylinder can achieve precise control over the bone cement injection amount and is stable in performance. The output pressure when the spiral pressurization needle cylinder works is always kept between 8MPa and 20MPa, high-viscosity cement is long in working time, an image can be clearly displayed, and the spiral pressurization needle cylinder is more convenient to operate.
Description
[technical field]
This utility model relates to a kind of pyramid plastic operation screw press syringe.
[background technology]
Pyramid plastic operation is applicable to former of compression fracture of vertabral body, vertebral body or the sick treatment operation such as metastatic tumo(u)r, myeloma that senile osteoporosis causes, it is a kind of non-blood vessel interventional therapy method under the irradiation image guiding, the method is passed through percutaneous puncture, bone cement is expelled in the diseased vertebral body, stablize vertebral body, thereby reach the purpose for the treatment of.Pyramid plastic operation will be used the screw press syringe and bone cement be injected in patient's the vertebral body, keep certain pressure when needing to inject bone cement, pressure can not be too large, and pressure can produce damaging influence to vertebral body too greatly, pressure can not be too little, and pressure is too little just can't to be injected on the vertebral body.
[utility model content]
This utility model purpose is to overcome the deficiencies in the prior art part, provides a kind of convenient to use, stable performance, the pressure of output is a constant, control accurately is convenient to different azimuth and at a distance operation, can effectively promote bone cement and be injected into epicentral pyramid plastic operation pressurization syringe.
In order to solve the technical problem of above-mentioned existence, this utility model adopts following technical proposal:
A kind of pyramid plastic operation screw press syringe, it is characterized in that it comprises the pressurization syringe, be provided with the constant voltage piston in the lumen tube of pressurization syringe, the rear end of constant voltage piston is connected with piston rod, the rear end of piston rod is stretched out the lumen tube outside and is provided with handle, the constant voltage piston is provided with valve pocket, the valve pocket rear end is provided with the pressure release passage that communicates with lumen tube, be provided with valve body in the valve pocket, valve body is provided with relief hole, is provided with needle in the relief hole, needle comprises shank and syringe needle, valve body is provided with the pressure release slit that is communicated with relief hole and valve pocket, and the rear end of needle is provided with spool and holds out against spring, and syringe needle holds out against at spool under the pressure of spring to offset with valve body closes the pressure release slit.
Aforesaid a kind of pyramid plastic operation screw press syringe, the output pressure that it is characterized in that described pressurization syringe is 8-20Mpa.
Aforesaid a kind of pyramid plastic operation screw press syringe is characterized in that also having small sealing ring on the described needle.
Aforesaid a kind of pyramid plastic operation screw press syringe is characterized in that described syringe seal cover is provided with screw, and the piston rod outer wall is provided with external screw thread.
Aforesaid a kind of pyramid plastic operation screw press syringe is characterized in that being provided with valve seals between described valve body and the valve pocket.
Aforesaid a kind of pyramid plastic operation screw press syringe is characterized in that establishing sealing ring and sealing gasket between described constant voltage piston and the lumen tube.
This utility model compared with prior art has the following advantages: can realize the accurate control of bone cement injection rate, stable performance; Can make and add screw press syringe when work output pressure and remain at 8-20Mpa, can be injected on the vertebral body by safe and effective promotion bone cement, make the sticking bone cement of height of injection the vertebral body support height that has compressed can be returned to certain altitude, and can avoid the generation of the complication such as seepage of bone cement, the high viscosity cement work time is long, can clearly develop the operation of being more convenient for; And screw press syringe of the present utility model is disposable sterilization packing, and is convenient to use.
[description of drawings]
Figure l is cutaway view of the present utility model;
Fig. 2 is the structure chart of pressurizing piston of the present utility model;
Fig. 3 is the structure chart of valve body of the present utility model under open mode;
Fig. 4 is the structure chart of valve body of the present utility model under in off position.
[specific embodiment]
A kind of pyramid plastic operation screw press syringe, it comprises pressurization syringe 1, be provided with constant voltage piston 2 in the lumen tube 11 of pressurization syringe 1, the rear end of constant voltage piston 2 is connected with piston rod 3, the rear end of piston rod 3 is connected with pressurization syringe 1 by syringe nut spiral cover 4, the outside that piston rod 3 passes the syringe seal cover is provided with handle 5, constant voltage piston 2 is provided with valve pocket 7, valve pocket 7 rear ends are provided with the pressure release passage 8 that communicates with lumen tube 11, the forward end seal of valve pocket 7 is connected with valve body 9, valve body 9 is provided with relief hole 12, be provided with needle 13 in the relief hole 12, needle 13 comprises shank 131 and syringe needle 132, and valve body 9 is provided with the pressure release slit 14 that is communicated with relief hole 12 and valve pocket 7, the rear end of needle 13 is provided with spool and holds out against spring 16, and syringe needle 132 holds out against at spool under the pressure of spring 16 to offset with valve rear end face 91 closes pressure release slit 14.The Needle with pressure-increasing means output pressure is 8-20Mpa.
The structure in pressure release slit 14 can be arranged on the slit between valve body 9 and the shank 131, can also be arranged on the passage that is communicated with relief hole 12 and valve rear end face 91 on the valve body 9.
Rotation handle 5 makes piston rod advance along screw thread in the use, can effectively accurately control injection volume, and inject laborsaving, injection pressure is convenient to control, is convenient to the injecting high viscosity bone cement, makes the sticking bone cement of height of injection the vertebral body support height that has compressed can be returned to certain altitude.The joint 6 that described syringe 2 rear ends connect makes convenient and fast connection for snap joint or the joint that is threaded.Be full of fluid under pressure in the lumen tube 11 of described pressurization syringe 1, rotation handle 5 in the use, after piston rod is advanced along screw thread, after the pressure of syringe needle reaches certain value, the pressure of piston nose holds out against the elastic force of spring 16 greater than spool, and it is mobile backward that the fluid under pressure of piston nose promotes needle 13, reduces the length in pressure release slit 14, the fluid under pressure of piston nose can flow into rapidly pressure release passage 8 by pressure release slit 14, flows in the lumen tube 11 of piston rear end through pressure release passage 8 again.After the pressure that makes piston nose holds out against the elastic force of spring 16 less than spool, spool holds out against spring 16 promotion needles 13 and moves forward, increase the length in pressure release slit 14, the fluid under pressure of piston rear end can flow in the lumen tube 11 of piston nose by pressure release slit 14, so repeatedly, make the Needle with pressure-increasing means output pressure remain at 8-20Mpa.
Syringe seal cover 4 is provided with screw 41, and piston rod 3 outer walls are provided with external screw thread 31.
Be provided with valve seals 17 between valve body 9 and the valve pocket 7; Establish sealing ring 18 and sealing gasket 19 between constant voltage piston 2 and the lumen tube 11.
The pin mouth 10 of the front end of pressurization syringe 1 is connected with the bone cement syringe by connecting duct 101.
Claims (6)
1. pyramid plastic operation screw press syringe, it is characterized in that it comprises pressurization syringe (1), be provided with constant voltage piston (2) in the lumen tube (11) of pressurization syringe (1), the rear end of constant voltage piston (2) is connected with piston rod (3), the rear end of piston rod (3) is stretched out lumen tube (11) outside and is provided with handle (5), constant voltage piston (2) is provided with valve pocket (7), valve pocket (7) rear end is provided with the pressure release passage (8) that communicates with lumen tube (11), be provided with valve body (9) in the valve pocket (7), valve body (9) is provided with relief hole (12), be provided with needle (13) in the relief hole (12), needle (13) comprises shank (131) and syringe needle (132), valve body (9) is provided with the pressure release slit (14) that is communicated with relief hole (12) and valve pocket (7), the rear end of needle (13) is provided with spool and holds out against spring (16), and syringe needle (132) holds out against at spool under the pressure of spring (16) to offset with valve body closes pressure release slit (14).
2. a kind of pyramid plastic operation screw press syringe according to claim 1, the output pressure that it is characterized in that described pressurization syringe is 8-20Mpa.
3. a kind of pyramid plastic operation screw press syringe according to claim 1 is characterized in that the upper in addition small sealing ring (131) of described needle (13).
4. a kind of pyramid plastic operation screw press syringe according to claim 1 is characterized in that described syringe seal cover (4) is provided with screw (41), and piston rod (3) outer wall is provided with external screw thread (31).
5. a kind of pyramid plastic operation screw press syringe according to claim 1 is characterized in that being provided with valve seals (17) between described valve body (9) and the valve pocket (7).
6. a kind of pyramid plastic operation screw press syringe according to claim 1 is characterized in that establishing between described constant voltage piston (2) and the lumen tube (11) sealing ring (18) and sealing gasket (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320209147 CN203234810U (en) | 2013-04-23 | 2013-04-23 | Spiral pressurization needle cylinder for vertebral body forming operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320209147 CN203234810U (en) | 2013-04-23 | 2013-04-23 | Spiral pressurization needle cylinder for vertebral body forming operation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203234810U true CN203234810U (en) | 2013-10-16 |
Family
ID=49312151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320209147 Expired - Lifetime CN203234810U (en) | 2013-04-23 | 2013-04-23 | Spiral pressurization needle cylinder for vertebral body forming operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203234810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105055012A (en) * | 2015-08-13 | 2015-11-18 | 广州爱锘德医疗器械有限公司 | Bone cement stirring injector |
-
2013
- 2013-04-23 CN CN 201320209147 patent/CN203234810U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105055012A (en) * | 2015-08-13 | 2015-11-18 | 广州爱锘德医疗器械有限公司 | Bone cement stirring injector |
| CN105055012B (en) * | 2015-08-13 | 2018-09-14 | 广州爱锘德医疗器械有限公司 | Bone cement stirring syringe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20120103859A (en) | Needleless injection device | |
| CN105879159A (en) | Reusable injector and working method thereof | |
| CN203861700U (en) | Pneumatic magnetic energy storage type needleless injector | |
| CN102652848A (en) | Electromagnetic continuous needleless injector with dose and injection depth adjusting faction | |
| CN204543206U (en) | A kind of Anesthesia Department injection device | |
| CN201624757U (en) | Vertebral body kyphoplasty surgical instrument | |
| CN203234810U (en) | Spiral pressurization needle cylinder for vertebral body forming operation | |
| CN203736629U (en) | Medical syringe | |
| CN203802892U (en) | Sample applicator for epithelial injection | |
| CN203598311U (en) | Drug injection gun | |
| CN203634584U (en) | Needleless injector | |
| CN103191494A (en) | Pneumatic impact system with digital display screen | |
| CN205287126U (en) | Low pressure needle -free injection device | |
| CN201085820Y (en) | Pressure transfusion device | |
| CN213076980U (en) | Preheating compressed gas power needleless injection handle capable of continuous injection | |
| CN209187764U (en) | A kind of blood vessel interventional therapy apparatus | |
| CN203017059U (en) | Bone cement injector | |
| CN103223201B (en) | Autologous fat injection part expansion and injection integrated device | |
| CN204092689U (en) | A kind of intestine moistening gel instrument for defecation | |
| CN107137805B (en) | Quantitative needle-free injection pen | |
| CN203017503U (en) | Angiocardiography injecting roll booster | |
| CN208212106U (en) | A kind of remote needleless injector of animal doctor | |
| CN205494565U (en) | Low remaining syringe that dispenses of liquid medicine | |
| CN218793405U (en) | Medicine feeding booster for medical anesthesia | |
| CN208660045U (en) | A kind of fix device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131016 |
|
| CX01 | Expiry of patent term |