CN215821135U - Side opening twist-off wrench for U-shaped spine nail - Google Patents
Side opening twist-off wrench for U-shaped spine nail Download PDFInfo
- Publication number
- CN215821135U CN215821135U CN202120936332.6U CN202120936332U CN215821135U CN 215821135 U CN215821135 U CN 215821135U CN 202120936332 U CN202120936332 U CN 202120936332U CN 215821135 U CN215821135 U CN 215821135U
- Authority
- CN
- China
- Prior art keywords
- twist
- opening
- wrench
- button
- arm
- 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 - Fee Related
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000741 silica gel Substances 0.000 claims abstract description 7
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 7
- 230000002035 prolonged effect Effects 0.000 claims 1
- 230000000399 orthopedic effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
- 230000008733 trauma Effects 0.000 description 1
Images
Landscapes
- Surgical Instruments (AREA)
- Prostheses (AREA)
Abstract
The utility model discloses a wrench for twisting off side openings of U-shaped spinal nail, belonging to the technical field of spinal orthopedic slippage surgical operations. The U-shaped arm of the spine can be twisted off by lightly pressing the button and forcibly moving the wrench to one side by holding the silica gel arm, so that the time for operation is reduced, and the tolerance of the utility model is increased.
Description
Technical Field
The utility model relates to a tool used in spinal orthopedic surgery, belongs to the technical field of medical instruments of implantation tools, and mainly relates to a technology for twisting off a side opening at the later stage of reasonable installation of a spinal nail, so that incisional traces of a screw are reduced, and the suture of the surgery is facilitated.
Background
The long-arm U-shaped nail has higher use ratio in spinal column correction and spinal column trauma operation. The long arm is convenient to lift and reset, so that the operation is more convenient and faster, after the operation is reset and fixed reasonably, the long arm of the screw is twisted off according to the set position, and finally the wound is sutured. The side-port wrench which twists off the long arm often has the factors of screw holding incapability, unreasonable fixing position and the like, and the time of the operation is influenced. Because of two side openings of long arm U type nail for the D shape arm of the wide 4mm of length 10mm, twist-off spanner is the box spanner in 10.25 x 4.1 inside square hole, generally designs for clearance fit, if the phenomenon in the wrench sleeve does not advance the nail arm appears easily in the clearance undersize use, if the too big difficult fixed position in clearance and can't hold the nail, for this company now designs a kind and holds the nail convenient, processes a simple twist-off spanner.
Disclosure of Invention
The utility model relates to a wrench for twisting off a side opening of a U-shaped spinal nail, which is a tool for removing redundant U-shaped long arms after a long-arm U-shaped nail is reset and fixed reasonably, and solves the problem of reasonable operation of holding the nail, mounting and twisting off in the operation process.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a U-shaped spinal nail side opening twist-off wrench comprises a twist-off sleeve rod 1, a push lock rod 2, a silica gel arm 3, a spring 4 and a button 5, wherein the push lock rod 2 is sleeved at the right end of the twist-off sleeve rod 1, the spring 4 and the button 5 are installed, the twist-off sleeve rod 1 is connected with the button 5, and then the end portion of the twist-off sleeve rod is welded into a whole, in order to enable the wrench to hold nails smoothly, the button 5 is pressed, the twist-off sleeve rod 1 extends out of a sleeve for pushing the lock rod 2, the opening of the twist-off sleeve rod 1 is enlarged, the opening length of the middle portion of the twist-off sleeve rod 1 is 0.4mm, the opening groove 4mm away from the end opening portion is in a trapezoidal shape and extends backwards after being wired, and the opening groove is in a trapezoidal shape and prevents the opening from exceeding 0.4 mm. The button 5 is loosened, the sleeve rod 1 is twisted off to reduce the opening of the sleeve under the sleeve pushing the lock rod 2, and the held nail is tightly sleeved. An operator holds the silica gel arm 3, pushes the locking rod 2 to tightly wrap the twist-off sleeve rod 1 at the moment, and twists the wrench to one side hard to break off the redundant opening side wall.
Furthermore, the twisting sleeve rod 1 is tightly held under the natural state of the push lock rod 2 to enable the opening to be in a tightly closed state all the time, and at the moment, the U-shaped long arm cannot enter the opening of the wrench or cannot easily slip off.
Further, press button 5 compression spring 4, twist off telescopic link 1 stretches out the port that promotes locking lever 2 and opens under the effect of open slot, hold smoothly and get long arm spinal nail, loosen button 5, twist off telescopic link 1 retracts back and to promoting in the locking lever 2 and wrap up twist off telescopic link 1 and make the opening close tightly, locking long arm spinal nail.
The utility model has the following advantages:
1 the nail holding and taking is flexible and convenient.
2 the nail can not be held due to abrasion after repeated use.
3, the processing is convenient, and the popularization and the use are easy.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the open slot at the head of the twist-off stem 1 of the present invention and a partial cross-sectional view B-B.
Fig. 3 is a top view of a twist-off stem 1 of the present invention.
Detailed Description
The utility model is described in further detail below with reference to the following figures and examples:
firstly, the installation sequence is that the twist-off loop bar 1 passes through a hole of the push lock bar 2, the spring 4 is arranged at the right end part, then the button 5 is sleeved, and the twist-off loop bar 1 and the button 5 are welded into a whole at the end part by laser. The silica gel arm 3 is fixed on the outer surface of the push lock rod 2, and is used for increasing the friction force when the lock rod 2 is pushed by hands.
When in use, the button 5 is pressed by a thumb, the twist-off loop bar 1 extends out of a part forwards under the compression of the spring 4, the wrapping and the restraint of the push lock bar 2 are released, the opening of the twist-off loop bar 1 is opened, and the long-arm spinal nail is held; the button 5 is loosened after the spinal nail is held and taken, the sleeve pipe which pushes the lock rod 2 wraps the twist-off loop bar 1, so that the opening of the twist-off loop bar 1 is reduced, and the spinal nail held and taken cannot fall off. Press button 5 once more, can loosen the backbone nail of being held and getting, continue holding of next backbone nail and get the installation, it is reasonable until all backbone nails all install, carry and to draw the unnecessary U type arm of backbone nail of getting rid of after the action that resets is whole accomplished, will place in holding of backbone nail with the wrench of twist-off and get the fault department, twist-off loop bar 1 with promoting 2 sleeve chunkings of locking lever, handheld silica gel handle 3 is to one side powerful skew, just twisted off the U type arm of backbone nail in the groove department of breaking.
Claims (3)
1. A side-opening twist-off wrench for a U-shaped spinal nail consists of a twist-off sleeve rod (1), a pushing lock rod (2), a silica gel arm (3), a spring (4) and a button (5), wherein the end part of the twist-off sleeve rod (1) is welded into a whole after being connected with the button (5), and the spring (4) is arranged between the pushing lock rod (2) and the button (5); silica gel arm (3) are fixed and are being promoted the surface of locking lever (2), characterized by, the pole middle part of twist-off telescopic pole (1) is opened the long 120mm of opening of a 0.4mm, is got back to the middle part and is prolonged backward after the line is walked to 4mm department open slot of port portion and is the trapezoidal form, and the open slot is the trapezoidal form and walks the line and prevent that the opening is too big to exceed 0.4 mm.
2. The wrench for twisting off the nail side opening of the U-shaped spine according to claim 1, wherein the locking rod (2) is pushed to naturally hold the twisting sleeve rod (1) tightly to keep the opening in a tightly closed state, and the U-shaped long arm cannot enter the opening of the wrench or cannot easily slip off.
3. The side-opening twist-off wrench for the U-shaped spinal nail according to claim 1, characterized in that a button (5) is pressed to compress a spring (4), a port of a twist-off sleeve rod (1) extending out of a push lock rod (2) is opened under the action of an open slot to smoothly hold and take the long-arm spinal nail, the button (5) is released, the twist-off sleeve rod (1) retracts to push the lock rod (2) and tightly wraps the twist-off sleeve rod (1) to tightly close the open slot, and the long-arm spinal nail is locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120936332.6U CN215821135U (en) | 2021-04-30 | 2021-04-30 | Side opening twist-off wrench for U-shaped spine nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120936332.6U CN215821135U (en) | 2021-04-30 | 2021-04-30 | Side opening twist-off wrench for U-shaped spine nail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215821135U true CN215821135U (en) | 2022-02-15 |
Family
ID=80188435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120936332.6U Expired - Fee Related CN215821135U (en) | 2021-04-30 | 2021-04-30 | Side opening twist-off wrench for U-shaped spine nail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215821135U (en) |
-
2021
- 2021-04-30 CN CN202120936332.6U patent/CN215821135U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220215 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |