CN215018786U - Surgical tool for assisting in minimally invasive implantation of screw connecting rod - Google Patents
Surgical tool for assisting in minimally invasive implantation of screw connecting rod Download PDFInfo
- Publication number
- CN215018786U CN215018786U CN202120785037.5U CN202120785037U CN215018786U CN 215018786 U CN215018786 U CN 215018786U CN 202120785037 U CN202120785037 U CN 202120785037U CN 215018786 U CN215018786 U CN 215018786U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- screw
- shell fragment
- minimally invasive
- assisting
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- 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
- 238000002513 implantation Methods 0.000 title claims description 11
- 239000012634 fragment Substances 0.000 claims abstract description 21
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000000994 depressogenic effect Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 210000004872 soft tissue Anatomy 0.000 description 7
- 210000003205 muscle Anatomy 0.000 description 5
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
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- Surgical Instruments (AREA)
Abstract
The utility model discloses an operation instrument that supplementary screw connective bar wicresoft was put into, including strutting the shell fragment, it runs through and has seted up the mounting groove to strut the middle part of shell fragment upper surface, it installs the pedicle of vertebral arch screw through the mounting groove to strut the shell fragment, strut one side that the shell fragment corresponds the mounting groove middle part and seted up the depressed part, the both ends of strutting the shell fragment all run through and have seted up the hanging hole, it installs the ware of strutting through the hanging hole to strut the shell fragment, it is including first connecting rod to strut the ware, second connecting rod and couple, the middle part of first connecting rod upper surface runs through and installs the carousel, the middle part of second connecting rod upper surface runs through and installs down the carousel, the equal fixed mounting of one end that struts the shell fragment was kept away from to first connecting rod and second connecting rod has the bracelet. The utility model discloses at the in-process that uses, this instrument can promote the operation field of vision when the screw connecting rod is put into, and dismouting simple and convenient, is favorable to putting into of screw connecting rod and the putting into of follow-up screw nut.
Description
Technical Field
The utility model relates to a medical instrument technical field especially relates to an operation instrument that supplementary screw connective bar wicresoft was put into.
Background
At present, spine surgery is performed in a minimally invasive mode, posterior minimally invasive screw-rod system internal fixation is a common surgical mode, and placement of minimally invasive pedicle screws is assisted by mature tools.
But the minimally invasive of screw connective bar is put into, and the instrument of existing is all more complicated, and the operation is also more loaded down with trivial details, and the device that supplementary screw connective bar wicresoft was put into is mostly as an organic whole with the screw design, and the screw is comparatively wasted the operation time with supplementary dismantlement of putting into between the device, aggravates patient's pain, and then leads to operation efficiency lower. Therefore, in order to solve the above problems, we propose a surgical tool that assists in the minimally invasive insertion of a screw connection rod.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an operation tool for assisting the minimally invasive implantation of a screw connecting rod.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an operation instrument that supplementary screw connective bar wicresoft was put into, is including strutting the shell fragment, it runs through and has seted up the mounting groove to strut the middle part of shell fragment upper surface, it installs pedicle of vertebral arch screw through the mounting groove to strut the shell fragment, strut one side that the shell fragment corresponds the mounting groove middle part and seted up the depressed part, the both ends of strutting the shell fragment all run through and have seted up the hanging hole, it installs the ware of strutting through the hanging hole to strut the shell fragment, the ware of strutting is including first connecting rod, second connecting rod and couple, the middle part of first connecting rod upper surface runs through and installs the carousel, the middle part of second connecting rod upper surface runs through and installs down the carousel, the equal fixed mounting of one end that struts the shell fragment was kept away from to first connecting rod and second connecting rod has the bracelet, first connecting rod and second connecting rod are close to the one end of strutting the shell fragment and are connected with the couple.
Preferably, the diameter of the outer annular surface of the upper end of the pedicle screw is greater than the length of the mounting groove.
Preferably, the upper turntable and the lower turntable are provided with fixing bolts together, and the fixing bolts extend to the upper surface above the upper turntable and are fixedly provided with connecting belts.
Preferably, the free end of the connecting band is fixedly connected with a positioning rod, the outer side of the middle part of the upper surface of the upper rotary plate is penetrated and provided with positioning holes arranged at intervals, and the upper surface of the lower rotary plate corresponding to one of the positioning holes is penetrated and provided with a matching hole.
Preferably, the locating hole is the same as the aperture of the matching hole, and the locating rod, the locating hole and the matching hole are matched with each other.
The utility model provides a pair of supplementary screw connective bar wicresoft puts into operation instrument, beneficial effect lies in: when the utility model is used, the auxiliary tool firstly uses the positioning puncture trocar to determine the puncture track of the pedicle screw, takes out the trocar needle core, puts in the guide wire, takes out the positioning puncture trocar outer tube, places the progressively expanded soft tissue sleeve, and leaves the last maximum sleeve in the body to protect the surrounding muscles;
then, tapping is carried out on the trajectory of the pedicle screw by using a hollow tap along a guide wire, the hollow tap is taken out, the pedicle screw is placed in a mounting groove on a spreading elastic sheet, a spreader is manually controlled to pinch a first connecting rod and a second connecting rod inwards, so that the spreading elastic sheet is in a bent shape, then the pedicle screw and the spreading elastic sheet are placed into a body together by using a tool, after the pedicle screw reaches a designated position, the whole spreader is detached by separating the spreading elastic sheet through a hook, and the largest soft tissue casing is taken out;
then, a spreader is installed through a hook, shearing force is applied to the spreading elastic sheet through a concave part, so that the spreading elastic sheet is disconnected, the spreader is further manually controlled, namely, a first connecting rod and a second connecting rod are pulled outwards, so that the spreading elastic sheet which is disconnected into two parts pulls muscle soft tissues to two sides, and then the positioning rod is matched with the positioning hole and the matching hole to complete the fixation between the upper turntable and the lower turntable, so that a good operation visual field is formed, and the screw connecting rod and the subsequent screw nut are conveniently placed;
in summary, the following steps: the tool can improve the operation visual field when the screw connecting rod is placed, is simple and convenient to disassemble and assemble, and is beneficial to the placement of the screw connecting rod and the placement of subsequent screw nuts.
Drawings
Fig. 1 is a schematic structural view of a surgical tool for assisting in minimally invasive implantation of a screw connecting rod according to the present invention;
fig. 2 is a schematic structural view of a spreading elastic sheet of a surgical tool for assisting in minimally invasive implantation of a screw connecting rod according to the present invention;
FIG. 3 is a structural exploded view of a distractor of a surgical tool for assisting in minimally invasive insertion of a screw connecting rod according to the present invention;
fig. 4 is a structural diagram of a bending state of the spreading elastic sheet of the surgical tool for assisting the minimally invasive implantation of the screw connecting rod according to the present invention.
In the figure: 1. opening the elastic sheet; 2. hanging holes; 3. hooking; 4. a first link; 5. a second link; 6. a bracelet; 7. mounting grooves; 8. pedicle screws; 9. a recessed portion; 10. a lower turntable; 11. an upper turntable; 12. a fixing bolt; 13. a connecting belt; 14. and (5) positioning the rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-4, an operation tool for assisting in minimally invasive implantation of a screw connecting rod comprises a distraction spring sheet 1, wherein a mounting groove 7 is formed in the middle of the upper surface of the distraction spring sheet 1 in a penetrating manner, a pedicle screw 8 is installed on the distraction spring sheet 1 through the mounting groove 7, a recess 9 is formed in one side of the distraction spring sheet 1 corresponding to the middle of the mounting groove 7, and the recess 9 arranged at the position can resist traction and shearing force.
Prop open both ends of shell fragment 1 and all run through and seted up hanging hole 2, prop open shell fragment 1 and install the ware that struts through hanging hole 2, the ware that struts is including first connecting rod 4, second connecting rod 5 and couple 3, the middle part of first connecting rod 4 upper surface runs through and installs carousel 11, the middle part of second connecting rod 5 upper surface runs through and installs down carousel 10, the equal fixed mounting in one end of propping open shell fragment 1 is kept away from to first connecting rod 4 and second connecting rod 5 has bracelet 6, first connecting rod 4 and second connecting rod 5 are close to the one end that struts shell fragment 1 and are connected with couple 3.
The diameter of the outer ring surface at the upper end of the pedicle screw 8 is larger than the length of the mounting groove 7, so that the pedicle screw 8 drives the distraction spring plate 1 to move inwards when being screwed into the body, and further the purpose of distracting muscle soft tissues is achieved.
The upper rotary table 11 and the lower rotary table 10 are jointly provided with a fixing bolt 12, the fixing bolt 12 extends to the upper surface above the upper rotary table 11 and is fixedly provided with a connecting belt 13, and the free end of the connecting belt 13 is fixedly connected with a positioning rod 14.
The outside at the middle part of the upper surface of the upper turntable 11 is penetrated and provided with locating holes arranged at intervals, the upper surface of the lower turntable 10 corresponding to one of the locating holes is penetrated and provided with a matching hole, the locating holes are the same as the matching holes in diameter, and the locating rods 14, the locating holes and the matching holes are matched with each other.
In the utility model, when the auxiliary tool is used, the puncture track of the pedicle screw 8 is determined by the positioning puncture trocar, the trocar needle core is taken out, the guide wire is placed in, the positioning puncture trocar outer tube is taken out, the soft tissue sleeve is placed to be gradually expanded, and the last maximum sleeve is left in the body to protect the surrounding muscles;
then, tapping is carried out on the track of the pedicle screw 8 by using a hollow tap along a guide wire, the hollow tap is taken out, the pedicle screw 8 is placed in a mounting groove 7 on the distraction elastic sheet 1, the distracter is manually controlled to pinch the first connecting rod 4 and the second connecting rod 5 inwards, so that the distraction elastic sheet 1 is in a bent state, then the pedicle screw 8 is placed into the body together with the distraction elastic sheet 1 by using a tool, after the pedicle screw reaches a designated position, the whole distracter is detached from the distraction elastic sheet 1 through the hook 3, and the maximum soft tissue sleeve is taken out;
then, a distractor is installed through a hook 3, shearing force is applied to the distraction elastic sheet 1 through a concave part 9, the distraction elastic sheet 1 is disconnected, the distractor is further manually controlled, namely, a first connecting rod 4 and a second connecting rod 5 are pulled outwards, the distraction elastic sheet 1 which is disconnected into two parts pulls muscle soft tissues towards two sides, and then the positioning rod 14 is matched with the positioning hole and the matching hole to complete the fixation between the upper turntable 11 and the lower turntable 10, so that a good operation visual field is formed, and the insertion of a screw connecting rod and the subsequent insertion of a screw nut are facilitated;
in summary, the following steps: the tool can improve the operation visual field when the screw connecting rod is placed, is simple and convenient to disassemble and assemble, and is beneficial to the placement of the screw connecting rod and the placement of subsequent screw nuts.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. An operation tool for assisting minimally invasive placing of a screw connecting rod comprises a strutting elastic sheet (1) and is characterized in that the middle of the upper surface of the strutting elastic sheet (1) is provided with a mounting groove (7) in a penetrating manner, pedicle screws (8) are installed on the strutting elastic sheet (1) through the mounting groove (7), one side of the strutting elastic sheet (1) corresponding to the middle of the mounting groove (7) is provided with a concave part (9), two ends of the strutting elastic sheet (1) are provided with hanging holes (2) in a penetrating manner, a strutting device is installed on the strutting elastic sheet (1) through the hanging holes (2) and comprises a first connecting rod (4), a second connecting rod (5) and a hook (3), an upper turntable (11) is installed in the middle of the upper surface of the first connecting rod (4) in a penetrating manner, a lower turntable (10) is installed in the middle of the upper surface of the second connecting rod (5) in a penetrating manner, first connecting rod (4) and second connecting rod (5) keep away from the equal fixed mounting in one end that struts shell fragment (1) have bracelet (6), first connecting rod (4) and second connecting rod (5) are close to the one end that struts shell fragment (1) and are connected with couple (3).
2. The surgical tool for assisting the minimally invasive implantation of the screw connecting rod according to claim 1, wherein the diameter of the outer annular surface of the upper end of the pedicle screw (8) is larger than the length of the mounting groove (7).
3. The surgical tool for assisting in minimally invasive implantation of the screw connecting rod according to claim 1, wherein the upper rotary disk (11) and the lower rotary disk (10) are jointly provided with a fixing bolt (12), and the fixing bolt (12) extends to the upper surface above the upper rotary disk (11) and is fixedly provided with a connecting band (13).
4. The surgical tool for assisting in minimally invasive implantation of the screw connecting rod according to claim 3, wherein a positioning rod (14) is fixedly connected to a free end of the connecting band (13), positioning holes are formed in the outer side of the middle of the upper surface of the upper rotary table (11) at intervals, and a matching hole is formed in the upper surface of the lower rotary table (10) corresponding to one of the positioning holes.
5. The surgical tool for assisting in minimally invasive implantation of screw connection rods according to claim 4, wherein the positioning holes and the matching holes have the same aperture, and the positioning rods (14), the positioning holes and the matching holes are matched with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120785037.5U CN215018786U (en) | 2021-04-16 | 2021-04-16 | Surgical tool for assisting in minimally invasive implantation of screw connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120785037.5U CN215018786U (en) | 2021-04-16 | 2021-04-16 | Surgical tool for assisting in minimally invasive implantation of screw connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215018786U true CN215018786U (en) | 2021-12-07 |
Family
ID=79105558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120785037.5U Expired - Fee Related CN215018786U (en) | 2021-04-16 | 2021-04-16 | Surgical tool for assisting in minimally invasive implantation of screw connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215018786U (en) |
-
2021
- 2021-04-16 CN CN202120785037.5U patent/CN215018786U/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: 20211207 |