CN211325493U - Rod holder - Google Patents
Rod holder Download PDFInfo
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- CN211325493U CN211325493U CN201922098536.2U CN201922098536U CN211325493U CN 211325493 U CN211325493 U CN 211325493U CN 201922098536 U CN201922098536 U CN 201922098536U CN 211325493 U CN211325493 U CN 211325493U
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- rod
- hole
- rod holding
- handle
- locking block
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Abstract
The utility model discloses a rod holder, which comprises a rod holder main body, a rod holder handle and a handle sleeve; the rod holding main body comprises a rod holding head and a locking block, a rod holding hole is formed in the end part of the rod holding head, a step through hole is formed in the center of the rod holding head and communicated with the rod holding hole, and a spring and a step ejecting core are arranged in the step through hole; a threaded through hole is formed in the center of the locking block, a locking bolt is connected in the threaded through hole, a knob is arranged at one end of the locking bolt, and the knob extends out of the locking block; the other end of the locking bolt tightly props against the step jacking core; the locking block is also provided with a jack; the rod holding handle comprises a connecting rod, a vertebral sleeve and a handle inner core. The utility model discloses can carry out convenient holding with the release of adding to the connective bar, make the connective bar can relax quick smooth implantation centrum, reduce the operation risk.
Description
Technical Field
The utility model particularly relates to a rod holder, which belongs to the technical field of surgical medical instruments.
Background
The spinal nail-rod internal fixation device is widely applied to the treatment of diseases related to spinal injuries and plays a role in restoring and fixing spinal bones. The posterior internal fixation of the spine is generally performed by minimally invasive surgery, which is characterized in that a part of an extension sheet is positioned outside the skin and a part of the extension sheet is positioned inside the skin by means of a ductile rigid extension sheet at the tail part of a pedicle screw. The operations such as rod planting and rod pressing are carried out under the guiding action of the extension pieces, and the connecting rods penetrate through the extension pieces of the pedicle screws one by one. Usually, a pedicle screw, a hook or other fastener is implanted and fixed with a vertebral body, connected through a connecting rod, and then fixed by a locking screw to play a supporting role. When the rod is placed in an open operation, the rod is generally placed into the U-shaped groove of the pedicle screw cap through the traditional rod holding forceps.
In the minimally invasive surgery of the spinal surgery, advanced medical imaging equipment and intraoperative computer-assisted navigation technology are used at present, the minimally invasive surgery can reduce the surgery time, reduce the morbidity of complications, relieve intraoperative tissue injury and bleeding, shorten the recovery time of a patient, relieve the pain of the surgery, beautify the incision, shorten the hospitalization and recovery time, and reduce the economic cost of medicine use and hospitalization cost. However, in the existing minimally invasive spine surgery, because the opening is small, the space provided between the two extension pieces is limited, and the rod implanting is difficult, so that the operation difficulty of penetrating the pedicle screws by the connecting rods is higher, and larger surgery risks exist. Meanwhile, the existing spinal connecting rod holder in the market has the defects of poor rod holding effect, improper rod implantation, complicated operation process, poor flexibility and the like, and the problems increase the operation difficulty in the operation process and increase the risk of the operation.
SUMMERY OF THE UTILITY MODEL
Problem to prior art existence, the utility model provides a hold excellent ware through the structure that improves and hold excellent ware, can solve current excellent ware flexibility of holding, hold the problem that excellent effect is not good.
The technical scheme of the utility model is that: the rod holder comprises a rod holding main body, a rod holding handle and a handle sleeve; the rod holding main body comprises a rod holding head and a locking block, the rod holding head and the locking block are welded together, a rod holding hole is formed in the end part of the rod holding head, a step through hole is formed in the center of the rod holding head and communicated with the rod holding hole, and a spring and a step ejector core are arranged in the step through hole; a threaded through hole is formed in the center of the locking block, a locking bolt is connected in the threaded through hole, a knob is arranged at one end of the locking bolt, and the knob extends out of the locking block; the other end of the locking bolt tightly props against the step jacking core; the locking block is also provided with a jack; the rod holding handle comprises a connecting rod, a vertebral sleeve and a handle inner core; the front end of the connecting rod is in a gooseneck shape, and the rear end of the connecting rod is in a linear shape; the handle inner core is fixed on the outer side of the linear part at the rear end of the connecting rod through a rivet, and a handle sleeve is arranged outside the handle inner core; the vertebra sleeve is arranged in the middle of the connecting rod, and the big end of the vertebra sleeve is butted with the handle sleeve; the head of connecting rod is provided with the plug, and the plug stretches into the jack on the latch segment.
The connecting rod and the locking block are connected in a welding mode after extending into the jack through the plug.
And a limiting pin is also arranged on the rod holding head.
The handle sleeve is provided with an anti-slip structure which is a bulge or a groove.
The utility model has the advantages that: the utility model presses down the step top core by rotating the locking bolt through the knob, thereby clamping the connecting rod placed in the rod holding port and conveniently holding the connecting rod in the spinal surgery; when the connecting rod needs to be released, the locking bolt is unscrewed, the step top core retracts under the action of the restoring force of the spring, and the connecting rod is released; interference with other surgical instruments is reduced by arranging the gooseneck of the connecting rod in a shape; the utility model discloses can make the connective bar can relax quick smooth implantation centrum, reduce the operation risk.
Drawings
FIG. 1 is a schematic view of the overall structure of a rod holder.
Fig. 2 is a schematic view of the structure of the main body of the holding rod.
Fig. 3 is a schematic view of the structure of the handle.
The labels in the figure are: 1-rod holding main body, 11-rod holding head, 12-locking block, 111-step top core, 112-spring, 113-rod holding hole, 114-limit pin, 121-locking bolt, 122-knob, 123-jack, 2-rod holding handle, 21-connecting rod, 22-vertebra sleeve, 23-rivet, 24-handle inner core and 25-plug; 3 handle sleeve, 31-anti-slip bulge.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in figure 1, the rod holder comprises a rod holding main body 1, a rod holding handle 2 and a handle sleeve 3, wherein the handle sleeve 3 is provided with an anti-skid protrusion 31, so that the operation is convenient.
As shown in fig. 2, the rod holding main body 1 comprises a rod holding head 11 and a locking block 12, the rod holding head and the locking block are welded together, a rod holding hole 113 is formed in the end of the rod holding head, a step through hole is formed in the center of the rod holding head, the step through hole is communicated with the rod holding hole, a spring 112 and a step top core 111 are arranged in the step through hole, and the spring is arranged at the step; the rod holding head is also provided with a limiting pin 114 which can limit the step top core. A threaded through hole is formed in the center of the locking block 12, a locking bolt 121 is connected in the threaded through hole, a knob 122 is arranged at one end of the locking bolt, and the knob extends out of the locking block; the other end of the locking bolt 121 tightly props against the step jacking core 111; the locking block is also provided with a jack 123.
As shown in fig. 3, the rod-holding handle 2 comprises a connecting rod 21, a vertebral sleeve 22 and a handle inner core 24; the front end of the connecting rod 21 is in a gooseneck shape, and the rear end of the connecting rod is in a linear shape; the handle inner core 24 is fixed at the outer side of the linear part at the rear end of the connecting rod through a rivet 23, and the handle sleeve 3 is arranged outside the handle inner core 24; the vertebra sleeve 22 is arranged in the middle of the connecting rod, and the big end of the vertebra sleeve is butted with the handle sleeve; the head of the connecting rod is provided with a plug 25, and after the plug 25 extends into the jack 123 on the locking block, the connecting rod 21 and the locking block 12 are fixedly connected in a welding manner.
The using method of the bar holder comprises the following steps: when the rod placing operation is needed in the operation, one end of the connecting rod is inserted into the rod holding hole, then the knob is rotated, the locking bolt is made to advance to press down the step top core, the spring is compressed, the head of the step top core extends into the rod holding hole to press the connecting rod, and at the moment, the connecting rod and the rod holder are integrated into a whole, so that the operation rod placing operation can be carried out; after the rod is placed, the knob is rotated in the opposite direction, the locking bolt retreats, the step ejection core retracts under the action of the restoring force of the spring, the head of the step ejection core retreats from the rod holding hole, and the connecting rod is successfully released. The utility model discloses reducible interference with other surgical instruments can carry out convenient holding with the release to the connective bar, makes the connective bar can easily quick smooth implantation centrum, reduces the operation risk.
Claims (4)
1. The rod holder is characterized in that: comprises a rod holding main body, a rod holding handle and a handle sleeve; the rod holding main body comprises a rod holding head and a locking block, the rod holding head and the locking block are welded together, a rod holding hole is formed in the end part of the rod holding head, a step through hole is formed in the center of the rod holding head and communicated with the rod holding hole, and a spring and a step ejector core are arranged in the step through hole; a threaded through hole is formed in the center of the locking block, a locking bolt is connected in the threaded through hole, a knob is arranged at one end of the locking bolt, and the knob extends out of the locking block; the other end of the locking bolt tightly props against the step jacking core; the locking block is also provided with a jack; the rod holding handle comprises a connecting rod, a vertebral sleeve and a handle inner core; the front end of the connecting rod is in a gooseneck shape, and the rear end of the connecting rod is in a linear shape; the handle inner core is fixed on the outer side of the linear part at the rear end of the connecting rod through a rivet, and a handle sleeve is arranged outside the handle inner core; the vertebra sleeve is arranged in the middle of the connecting rod, and the big end of the vertebra sleeve is butted with the handle sleeve; the head of connecting rod is provided with the plug, and the plug stretches into the jack on the latch segment.
2. A rod holder according to claim 1, wherein: the connecting rod and the locking block are connected in a welding mode after extending into the jack through the plug.
3. A rod holder according to claim 1, wherein: and a limiting pin is also arranged on the rod holding head.
4. A rod holder according to claim 1, wherein: the handle sleeve is further provided with an anti-skidding structure which is a bulge or a groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922098536.2U CN211325493U (en) | 2019-11-29 | 2019-11-29 | Rod holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922098536.2U CN211325493U (en) | 2019-11-29 | 2019-11-29 | Rod holder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211325493U true CN211325493U (en) | 2020-08-25 |
Family
ID=72107994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922098536.2U Active CN211325493U (en) | 2019-11-29 | 2019-11-29 | Rod holder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211325493U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112370137A (en) * | 2020-10-20 | 2021-02-19 | 广东施泰宝医疗科技有限公司 | Rod holding system for minimally invasive spine surgery |
-
2019
- 2019-11-29 CN CN201922098536.2U patent/CN211325493U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112370137A (en) * | 2020-10-20 | 2021-02-19 | 广东施泰宝医疗科技有限公司 | Rod holding system for minimally invasive spine surgery |
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