CN203873868U - Pedicle screw rod-holding device for minimally invasive surgery - Google Patents
Pedicle screw rod-holding device for minimally invasive surgery Download PDFInfo
- Publication number
- CN203873868U CN203873868U CN201420109831.8U CN201420109831U CN203873868U CN 203873868 U CN203873868 U CN 203873868U CN 201420109831 U CN201420109831 U CN 201420109831U CN 203873868 U CN203873868 U CN 203873868U
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- China
- Prior art keywords
- hold
- main body
- depression bar
- holding
- rod
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Abstract
The utility model discloses a pedicle screw rod-holding device for the minimally invasive surgery. The pedicle screw rod-holding device is characterized in that the rod-holding device comprises a handheld part and a rod-holing part, the handheld part is fixedly connected with the rod-holing part, the lower end of the rod-holing part is provided with a small hole for fixing a connecting rod, the connecting rod can be fixedly connected in the small hole, and the rod-holding part is of a circular arc shape. The arc-shaped rod-holing part can avoid interference of the rod-holding device and other surgery equipment such as nail seats effectively, so that operation is more free and convenient and fast, and positioning is more convenient.
Description
Technical field
This utility model relates to surgical medical equipment field, relates to particularly a kind of excellent device of holding.
Background technology
Common thoracolumbar spine disease comprises degeneration, fracture, tumor, infection etc.Traditional internal fixation of spine operation wound is larger, and soft tissue cuts and peels off widely, easily cause hemorrhage more, complication that the dissect physiology of spinal column changes and vertebral body is unstable, postoperative rehabilitation time lengthening etc.Micro-wound surgical operation is since the development seventies in last century, and along with operating theater instruments is constantly updated, advanced person's the continuous appearance of medical imaging equipment and the application of art Computer assisting navigation, less invasive techniques develops very fast in spinal surgery.Minimally Invasive Surgery reduces operating time, reduces the sickness rate of complication, alleviates Shu Zhong tissue injury and hemorrhage, shortens patient's recovery time, alleviates operation pain, is that otch is attractive in appearance, shortens and is in hospital and rehabilitation duration, reduces drug use and the Financial cost of the cost of being in hospital.Along with scientific and technological development, vertebral column minimally invasive technology, using the part as conventional surgical technology, becomes a main trend of internal fixation of spine technical development.
Pedicle screw instrumentation has fixedly advantage of three posts, is a kind of very ripe spinal surgery technology, is widely used.Conventionally the securing members such as pedicle screw, hook implanted and fixed with vertebral body, by pitman, connecting, then fix with holding screw, playing a supportive role.While putting rod in open surgery, generally by traditional rod pincers of holding, hold rod and put into the U-shaped groove of the pedicle screw head of a nail.In Chinese patent CN201220496931.1, describe a kind of excellent device of holding in detail.But in current existing vertebral column minimally invasive system, still exist operating process loaded down with trivial details, put the shortcomings such as rod difficulty, motility be weak, be difficult to opposed excellent position accurately locate, make to put excellent precision and reduce.
Therefore, those skilled in the art be devoted to develop a kind of flexible operation easy, put excellent accurate positioning, in art, can hold excellent device with other operating theater instruments can be good at being used in conjunction with simultaneously.
Utility model content
Because the above-mentioned defect of prior art, in order to solve, in prior art, to be difficult to opposed excellent position and accurately to locate, put rod difficulty, poor this technical problem of motility, this utility model provides a kind of minimally invasive spine surgical of being applicable to, meet the particularity of its operation technique, and put the excellent device of holding of rod convenience, accurate positioning.
The purpose of this utility model is achieved through the following technical solutions:
A kind of pedicle screw rod holder for Minimally Invasive Surgery, it is characterized in that, describedly hold excellent device and comprise Handheld Division and hold excellent portion, described Handheld Division with described in hold excellent portion and be fixedly connected with, the described excellent subordinate end of holding is provided with and is fixedly connected with excellent aperture, described pitman can be fixedly connected in described aperture, described in to hold excellent portion be circular arc.Arc hold the interference that excellent portion can effectively avoid holding excellent device and other operating equipments (as nail seat), thereby make operation more freely convenient, locate convenient.
In another preference, described hold excellent portion comprise circular arc hollow main body, depression bar knob, compress sliding rod and hold excellent joint, the sliding rod of described compression is placed in the main body of described hollow, described depression bar knob is rotatably connected in the upper end of described main body, describedly hold excellent joint and be provided with the first perforate and the second perforate, described the first perforate is arranged for the insertion of pitman, and described the second perforate is arranged for the lower end that is fixedly connected with described main body, dismountable being connected on described depression bar knob of the sliding rod of described compression.The axis of described the first perforate is perpendicular to the axis of described the second perforate.
Further, described in the diameter of holding connection depression bar knob one end of excellent portion main body described in is greater than, hold the connection of excellent portion main body and hold the diameter of excellent joint one end.
Further, described in hold excellent portion main body be provided with limit pin hole, described in hold excellent portion and also comprise spacer pin, described spacer pin is inserted in described limit pin hole, described spacer pin is set to prevent that the sliding rod of described compression from laterally sliding along described main body inner wall.
Further, described limit pin hole quantity is two groups, is separately positioned on described in distance and holds three minutes places of holding excellent minister's degree at excellent portion two ends.
Further, one end that the sliding rod of described compression is resisted against described depression bar knob is flange, described depression bar knob has the groove of accommodating described flange, described groove walls is provided with the limit pin hole inserting for spacer pin, can stop flange from described groove in to exit after inserting spacer pin in described limit pin hole.
Further, describedly hold excellent portion and also comprise connecting sleeve, described main body upper end is provided with female thread, one end of described connecting sleeve is provided with the external screw thread matching with the female thread of described main body upper end, the other end of described connecting sleeve is provided with female thread, described depression bar knob is provided with the external screw thread matching with described connecting sleeve female thread, and described depression bar knob is connected with described main body by connecting sleeve.
First perforate of holding the fixing described pitman arranging on excellent joint further, is square opening.
Compared with prior art, good effect of the present utility model is:
(1) this utility model is held rod, is put rod conveniently, and can not interfere with other operating theater instruments in art, can well be used in conjunction with;
(2) this utility model holds that excellent device is connected with pitman and removal is simple to operation, and is connected firmly.
Below with reference to accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is described further, to understand fully the purpose of this utility model, feature and effect.
Accompanying drawing explanation
Fig. 1 a kind ofly in prior art holds excellent device schematic diagram.
Fig. 2 is the excellent device schematic perspective view of holding of a preferred embodiment of the present utility model.
Fig. 3 is the excellent device structural representation of holding of a preferred embodiment of the present utility model.
Fig. 4 is that the excellent device of holding of a preferred embodiment of the present utility model compresses sliding rod and depression bar knob connection diagram.
The specific embodiment
Below in conjunction with accompanying drawing, specifically introduce embodiment of the present utility model.
As shown in Figure 1, the excellent device of holding in the present embodiment comprises Handheld Division 1 and holds excellent portion 2, holding excellent portion 2 is arcuate structure, Handheld Division 1 with hold excellent portion 2 and be fixedly connected with, hold excellent portion 2 and comprise the main body 21 of hollow, depression bar knob 22, compress sliding rod 25 and hold excellent joint 23, compressing sliding rod 25 is placed in the main body 21 of hollow, depression bar knob 25 is rotatably connected in the upper end of main body 21, hold excellent joint 23 and be fixedly connected on the lower end of main body 21, compressing sliding rod 25 is removably connected on depression bar knob 22, hold excellent joint 23 and be provided with the first perforate 231 and the circular hole 232 that is connected main body 21 that is fixedly connected with rod 3, when pitman 3 is fixed in the first perforate 231, pitman 3 is perpendicular to Handheld Division 1 and hold the plane that excellent portion 2 forms.By this design, in operation, doctor can be put clubs by the mode of rotation Handheld Division 1 and be done, and only keeping Handheld Division 1 just to horizontally rotate can accurately position pitman 3.Changed in prior art, doctor needs up and down or move left and right handle pitman 3 to be placed on to the operator scheme of accurate location, and more convenient operation, location are more accurate.
Arc hold the interference that excellent portion 2 can effectively avoid holding excellent device and other operating equipments (as nail seat), thereby make operation more freely convenient, locate convenient.
The diameter of holding main body 21 connection depression bar knob 22 one end of excellent portion 2 in the present embodiment is greater than the diameter that excellent joint 23 one end are held in its connection, 21 pairs of interference that compress sliding rod 25 of main body when main body 21 compare great spaces, upper end are conducive to reduce 22 pairs of depression bar knobs and compress sliding rod 25 and exert pressure, main body 21 compare little spaces, lower end are conducive to compress sliding rod 25 and can embed accurately in the groove of pitman 3.
In the present embodiment, be provided with limit pin hole 211 holding in the main body 21 of excellent portion 2, hold excellent portion 21 and also comprise spacer pin 212, spacer pin 212 can be inserted in limit pin hole 211, when spacer pin 212 inserts in limit pin hole 211, can prevent from compressing the 25 horizontal slips along main body 21 inwalls of sliding rod, being conducive to compress sliding rod 25 in compaction process can embed in the groove of pitman 3 accurately.Limit pin hole 211 quantity are two groups, are respectively arranged on three minutes places of holding excellent minister's degree that distance is held excellent portion 2 two ends.
Compressing sliding rod 25 one end that are resisted against depression bar knob 22 is flange 251, depression bar knob 22 has the groove of accommodating flange 251, groove walls is provided with the limit pin hole 221 inserting for spacer pin 222, insert spacer pin 222 in limit pin hole 221 after, can stop flange 251 to exit in groove, pull down after spacer pin 222, compressing sliding rod 25 can be separated with depression bar knob 22 at an easy rate, thereby realize, assembles easily and changes.
Hold excellent portion 2 and also comprise connecting sleeve 24, main body 21 upper ends are provided with female thread, one end of connecting sleeve 24 is provided with the external screw thread matching with the female thread of main body 21 upper ends, the other end of connecting sleeve 24 is provided with female thread, depression bar knob 22 is provided with the external screw thread matching with connecting sleeve 24 female threads, and depression bar knob 22 is connected with main body 21 by connecting sleeve 24.
In operation, pitman 3 is inserted and held in excellent device the first perforate 231, rotation depression bar knob 22, compresses sliding rod 25 and can be pressed in the groove of pitman 3 insertion ends, pitman 3 with hold excellent device and be connected together, can put clubs and do.After putting rod and completing, unscrew depression bar depression bar knob 22, compress sliding rod 25 and depart from pitmans 3, the excellent device removal of pitman 3 can being controlled oneself.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design of the present utility model without creative work.Therefore, all technical staff in the art comply with design of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.
Claims (8)
1. the pedicle screw rod holder for Minimally Invasive Surgery, it is characterized in that, describedly hold excellent device and comprise Handheld Division and hold excellent portion, described Handheld Division with described in hold excellent portion and be fixedly connected with, the described excellent subordinate end of holding is provided with and is fixedly connected with excellent aperture, described pitman can be fixedly connected in described aperture, described in to hold excellent portion be circular arc.
2. as claimed in claim 1ly hold excellent device, it is characterized in that, described hold excellent portion comprise circular arc hollow main body, depression bar knob, compress sliding rod and hold excellent joint, the sliding rod of described compression is placed in the main body of described hollow, described depression bar knob is rotatably connected in the upper end of described main body, describedly hold excellent joint and be provided with the first perforate and the second perforate, described the first perforate is arranged for the insertion of pitman, described the second perforate is arranged for the lower end that is fixedly connected with described main body, dismountable being connected on described depression bar knob of the sliding rod of described compression.
3. as claimed in claim 2ly hold excellent device, it is characterized in that, described in hold connection depression bar knob one end of excellent portion main body the diameter connection of holding excellent portion main body described in being greater than hold the diameter of excellent joint one end.
4. as claimed in claim 2ly hold excellent device, it is characterized in that, described main body of holding excellent portion is provided with limit pin hole, describedly hold excellent portion and also comprise spacer pin, described spacer pin is inserted in described limit pin hole, and described spacer pin is set to prevent that the sliding rod of described compression from laterally sliding along described main body inner wall.
5. as claimed in claim 4ly hold excellent device, it is characterized in that, described limit pin hole quantity is two groups, is separately positioned on three minutes places of holding excellent minister's degree of holding excellent portion two ends described in distance.
6. as claimed in claim 2ly hold excellent device, it is characterized in that, one end that the sliding rod of described compression is resisted against described depression bar knob is flange, described depression bar knob has the groove of accommodating described flange, described groove walls is provided with the limit pin hole inserting for spacer pin, can stop flange from described groove in to exit after inserting spacer pin in described limit pin hole.
7. as claimed in claim 2ly hold excellent device, it is characterized in that, describedly hold excellent portion and also comprise connecting sleeve, described main body upper end is provided with female thread, one end of described connecting sleeve is provided with the external screw thread matching with the female thread of described main body upper end, the other end of described connecting sleeve is provided with female thread, and described depression bar knob is provided with the external screw thread matching with described connecting sleeve female thread, and described depression bar knob is connected with described main body by connecting sleeve.
8. as claimed in claim 2ly hold excellent device, it is characterized in that, described in hold the fixing described pitman arranging on excellent joint the first perforate be square opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420109831.8U CN203873868U (en) | 2014-03-11 | 2014-03-11 | Pedicle screw rod-holding device for minimally invasive surgery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420109831.8U CN203873868U (en) | 2014-03-11 | 2014-03-11 | Pedicle screw rod-holding device for minimally invasive surgery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203873868U true CN203873868U (en) | 2014-10-15 |
Family
ID=51674428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420109831.8U Expired - Fee Related CN203873868U (en) | 2014-03-11 | 2014-03-11 | Pedicle screw rod-holding device for minimally invasive surgery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203873868U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105434027A (en) * | 2016-01-03 | 2016-03-30 | 邓宇 | Connection rod of thoracolumbar vertebral fracture posterior minimally-invasive screw-rod system |
| CN105832393A (en) * | 2016-02-25 | 2016-08-10 | 鞠亮 | Screw stopper used for clinical operation |
| CN109758223A (en) * | 2019-01-15 | 2019-05-17 | 常州鼎健医疗器械有限公司 | A kind of Minimally Invasive Surgery instrument using PEEK connecting rod |
-
2014
- 2014-03-11 CN CN201420109831.8U patent/CN203873868U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105434027A (en) * | 2016-01-03 | 2016-03-30 | 邓宇 | Connection rod of thoracolumbar vertebral fracture posterior minimally-invasive screw-rod system |
| CN105832393A (en) * | 2016-02-25 | 2016-08-10 | 鞠亮 | Screw stopper used for clinical operation |
| CN109758223A (en) * | 2019-01-15 | 2019-05-17 | 常州鼎健医疗器械有限公司 | A kind of Minimally Invasive Surgery instrument using PEEK connecting rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20141015 |