CN217886178U - Pressurization locking screw and implantation tool - Google Patents
Pressurization locking screw and implantation tool Download PDFInfo
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- CN217886178U CN217886178U CN202220825911.8U CN202220825911U CN217886178U CN 217886178 U CN217886178 U CN 217886178U CN 202220825911 U CN202220825911 U CN 202220825911U CN 217886178 U CN217886178 U CN 217886178U
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Abstract
The utility model provides a pressurization locking screw and implantation tool belongs to medical instrument technical field. The utility model provides a pair of pressurization locking screw, including locking screw and pressure piece, locking screw includes locking head of a nail and locking nail pole, and pressure piece just is provided with the side opening for the elastic component, encircles the setting on the locking nail pole. A pressurized locking screw implanting tool comprises a left clamp handle and a right clamp handle, wherein a first driving piece is arranged at one end, away from a handheld end, of the left clamp handle, and a second driving piece is arranged at one end, away from the handheld end, of the right clamp handle; the first driving piece and the second driving piece simultaneously exert force on the pressurizing sheet for expanding the side opening and removing the pressurizing sheet from the locking screw. The utility model provides a pair of pressurization locking screw and implantation tool, locking screw have the pressurization function, take off with the help of implantation tool after the pressurization is accomplished and add the preforming, and locking screw locks, need not to implant compression screw, and is less to the patient damage.
Description
Technical Field
The utility model belongs to the technical field of medical instrument, concretely relates to pressurization locking screw and implantation tool.
Background
In fracture disease treatment process, often use fixed plate, forcing screw, locking screw, fix patient's fracture position, be provided with forcing hole and locking hole on the fixed plate, forcing screw cooperation forcing hole exerts pressure to the fixed plate, and the fixed plate laminates the bone surface more, and locking screw cooperation locking hole fixes the fixed plate on the patient treats fixed skeleton, and fixed the use is more, and is great to the patient damage, is unfavorable for the later stage to resume.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pressurization locking screw and implant instrument aims at solving the fixed in-process of fixed plate and uses the screw more, damage great, be unfavorable for the problem that the later stage resumes to the patient.
In order to achieve the above object, the utility model adopts the following technical scheme: there is provided a compression lock screw comprising: locking screw and pressure piece, locking screw includes locking nut and locking nail pole, locking nut passes through threaded connection with the locking hole on the fixed plate, pressure piece just is provided with the side opening for the elastic component, pressure piece encircles the setting and is in locking nail pole is close to the one end of locking nut, the internal diameter of pressure piece is less than the external diameter of locking nut.
In a possible implementation manner, the two free ends of the pressurizing sheet are respectively provided with an operation hole matched with the implantation tool for installation.
In one possible implementation, the width of the side opening is smaller than the inner diameter of the pressurizing sheet.
In one possible implementation, the free end of the locking nut is provided with a rotating groove.
In one possible implementation, the diameter of the locking nut gradually decreases as it approaches the locking shank.
In a possible implementation, the pressing sheet is a piece of metal material.
There is provided a compression lock screw implantation tool comprising: the left side of the clamp comprises a left clamp handle and a right clamp handle, the left clamp handle is hinged with the right clamp handle, a first driving piece is arranged at one end, away from the handheld end, of the left clamp handle, and a second driving piece is arranged at one end, away from the handheld end, of the right clamp handle; the first driving piece and the second driving piece simultaneously exert force on the pressurizing sheet, so that the side opening is expanded and the pressurizing sheet is removed from the locking screw.
In a possible implementation manner, the first driving piece comprises a first connecting column and a first fixing column, the first connecting column connects the lower end face of the left forceps handle and the first fixing column, and the outer diameter of the first fixing column matches with the inner diameter of the operating hole; the second driving piece comprises a second connecting column and a second fixing column, the second connecting column is connected with the lower end face of the right forceps handle and the second fixing column, and the outer diameter of the second fixing column is matched with the inner diameter of the operating hole.
In a possible implementation manner, an anti-skid structure is arranged between the left forceps handle and the right forceps handle.
In a possible implementation manner, the anti-slip structure comprises a first clamping strip and a second clamping strip which are arranged in an up-and-down matching manner, the first clamping strip is arranged on one side, close to the right forceps handle, of the left forceps handle, the second clamping strip is arranged on one side, close to the left forceps handle, of the right forceps handle, and positioning teeth are arranged on the end faces, attached to each other, of the first clamping strip and the second clamping strip.
The utility model provides a pair of pressurization locking screw and implantation tool's beneficial effect lies in:
compared with the prior art, the fixing device comprises a locking screw and a pressurizing piece, wherein the locking screw comprises a locking screw cap and a locking screw rod, the locking screw cap can be locked with a locking hole in a fixing plate, the locking screw and the fixing plate are prevented from being displaced or even falling off in the use process, the locking screw rod is implanted into bones, the fixing stability is improved, the pressurizing piece is provided with a side opening, the pressurizing piece is arranged on the locking screw in a semi-encircling manner and is used for pressurizing the fixing plate, two ends of the fixing piece are used for connecting an implanting tool, and the pressurizing piece can be taken down from the locking screw; the implantation tool comprises a left forceps handle and a right forceps handle, wherein a first driving piece and a second driving piece are respectively arranged at one ends of the left forceps handle and the right forceps handle, which are far away from the handheld end, and are respectively detachably connected with two ends of the pressurizing sheet and used for detaching the pressurizing sheet; when the device is used, the locking screw is implanted into a patient body by means of a surgical tool, the fixing plate is pressurized under the action of the pressurizing sheet, the first driving piece and the second driving piece of the implanting tool are arranged at the two ends of the pressurizing sheet, the left forceps handle and the right forceps handle are spread, the pressurizing sheet is taken down from the locking screw, the locking screw is further rotated, and the fixing plate is locked on the bone surface; the implantation of screws is reduced, compression screws do not need to be implanted, the injury to a patient is small, and the operation is simple, convenient and quick.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a first schematic structural diagram of a compression locking screw according to an embodiment of the present invention;
fig. 2 is a second schematic structural view of a compression locking screw according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an implantation tool according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a compression locking screw and an implantation tool according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a compression locking screw, an implantation tool and a fixing plate according to an embodiment of the present invention.
In the figure: 1. a locking screw; 101. locking the nail cap; 102. locking the nail rod; 103. a first thread formation; 104. a second thread formation; 105. a rotating tank; 2. pressing the tablets; 201. opening the side; 202. a fixing member; 203. an operation hole; 3. a left plier handle; 4. a right forceps handle; 5. hinging shafts; 6. a first driving member; 601. a first connecting post; 602. a first fixed column; 7. a second driving member; 701. a second connecting column; 702. a second fixed column; 8. a first clip strip; 9. a second clamping strip; 10. positioning teeth; 11. and (7) fixing the plate.
Detailed Description
In order to make the technical problem, technical solution and beneficial effects to be solved by the present invention more clearly understood, the following description is made in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 2 and fig. 5, a specific embodiment of a compression lock screw 1 according to the present invention is now described, which includes: the locking screw 1 comprises a locking screw cap 101 and a locking screw rod 102, the locking screw cap 101 is in threaded connection with a locking hole in the fixing plate 11, the pressurizing sheet 2 is an elastic piece and is provided with a side opening 201, the pressurizing sheet 2 is arranged at one end, close to the locking screw cap 101, of the locking screw rod 102 in a surrounding mode, and the inner diameter of the pressurizing sheet 2 is smaller than the outer diameter of the locking screw cap 101.
The utility model provides a pair of pressurization locking screw 1, compared with the prior art, including locking screw 1 and pressurization piece 2, locking screw 1 includes locking nut 101 and locking nail pole 102, locking nut 101 can lock with the locking hole on the fixed plate 11, avoid in the use, locking screw 1, fixed plate 11 take place the displacement and even drop, locking nail pole 102 is arranged in implanting the skeleton, increase fixed stability, pressurization piece 2 is provided with side opening 201, pressurization piece 2 semi-winding sets up on locking screw 1, be used for pressurizeing fixed plate 11, the mounting 202 both ends are used for connecting the implantation instrument, can take off pressurization piece 2 from locking screw 1; when the device uses, with the help of surgical tool with locking screw 1 implant patient internal, under the effect of pressurization piece 2, pressurize fixed plate 11, take off pressurization piece 2 from locking screw 1, further rotatory locking screw 1 locks fixed plate 11 on the bone surface, has reduced the implantation of screw, need not to implant the pressurization screw, and is less to the patient damage, and is easy and simple to handle swift.
Specifically, please refer to fig. 1, fig. 2, and fig. 5, which includes a locking screw 1 and a pressing plate 2, wherein the locking screw 1 includes a locking screw cap 101 and a locking screw rod 102, the locking screw cap 101 is provided with a first thread structure 103, the locking screw rod 102 is provided with a second thread structure 104, a thread pitch of the first thread structure 103 is smaller than a thread pitch of the second thread structure 104, the pressing plate 2 is disposed around the locking screw 1, the locking screw 1 is implanted by a surgical instrument to apply pressure to the pressing plate 2, so as to further realize the pressing of the fixing plate 11, after the pressing is completed, the pressing plate 2 is taken down from the locking screw 1, and is continuously screwed into the locking screw 1, so as to eliminate a gap between the locking screw 1 and the fixing plate 11, and fix the fixing plate 11 without separately implanting a pressing screw, thereby reducing the implantation of the screw, reducing the damage to the patient, and achieving a simple and fast operation.
As a specific embodiment of the compression locking screw 1 provided in the present invention, please refer to fig. 1 and 2, two free ends of the compression plate 2 are respectively provided with an operation hole 203 installed in cooperation with an implantation tool.
Specifically, referring to fig. 1 and 2, two ends of the pressurizing sheet 2 are respectively provided with a fixing member 202, and an operation hole 203 is formed in the fixing member 202, so as to be conveniently connected to an implantation tool for detaching the pressurizing sheet 2.
Referring to fig. 1 and 2, a width of the side opening 201 is smaller than an inner diameter of the pressing piece 2.
Specifically, referring to fig. 1 and 2, the width of the side opening 201 is smaller than the outer diameter of the locking screw 1, so as to prevent the pressing plate 2 from falling off from the locking screw 1.
Referring to fig. 1 and 2, a rotation groove 105 is formed at a free end of a locking nut 101 according to a specific embodiment of the locking screw 1 of the present invention.
Specifically, referring to fig. 1 and 2, a rotation groove 105 is formed at an end of the locking nut 101 to facilitate the insertion and removal of the locking screw 1.
As a specific embodiment of the compression locking screw 1 provided by the present invention, referring to fig. 1 and 2, the diameter of the locking nut 101 gradually decreases as it approaches the locking stem 102.
Specifically, referring to fig. 1 and 2, the diameter of the locking nut 101 gradually decreases from the free end to the locking rod 102, so as to facilitate the locking of the locking screw 1.
As a specific embodiment of the pressure locking screw 1 provided in the present invention, the pressure plate 2 is made of a metal material.
Specifically, the pressurizing sheet 2 may be made of a metal material, and has elastic deformation to facilitate removal of the pressurizing sheet 2.
Referring now to fig. 1 to 5, a specific embodiment of an implanting tool for a compression lock screw 1 according to the present invention is described, including: the clamp comprises a left clamp handle 3 and a right clamp handle 4, wherein the left clamp handle 3 is hinged with the right clamp handle 4, a first driving piece 6 is arranged at one end, away from the handheld end, of the left clamp handle 3, and a second driving piece 7 is arranged at one end, away from the handheld end, of the right clamp handle 4; the first driving member 6 and the second driving member 7 simultaneously apply a force to the pressurizing sheet 2 for expanding the side opening 201 and removing the pressurizing sheet 2 from the locking screw 1. Compared with the prior art, the pressurized locking screw 1 implanting tool provided by the utility model comprises a left forceps handle 3 and a right forceps handle 4, wherein one end of the left forceps handle 3 and one end of the right forceps handle 4, which are far away from the handheld end, are respectively provided with a first driving piece 6 and a second driving piece 7, which are respectively detachably connected with two ends of a pressurizing sheet 2 and are used for detaching the pressurizing sheet 2; when the device is used, the locking screw 1 is implanted into a patient body by means of a surgical tool, the fixing plate 11 is pressurized under the action of the pressurizing sheet 2, the first driving piece 6 and the second driving piece 7 of the implanting tool are clamped at two ends of the pressurizing sheet 2, the left forceps handle 3 and the right forceps handle 4 are spread, the pressurizing sheet 2 is taken down from the locking screw 1, the locking screw 1 is further rotated, and the fixing plate 11 is locked on the bone surface; the implantation of screws is reduced, compression screws do not need to be implanted, the damage to patients is small, and the operation is simple, convenient and quick.
Specifically, please refer to fig. 1 to 5, which includes a left forceps handle 3 and a right forceps handle 4, the left forceps handle 3 is hinged to the right forceps handle 4 through a hinge shaft 5, the left forceps handle 3 is provided with a first driving member 6, the right forceps handle 4 is provided with a second driving member 7, the first driving member 6 and the second driving member 7 are disposed in the operation holes 203 at the two ends of the pressurizing sheet 2, the left forceps handle 3 and the right forceps handle 4 are opened, and the pressurizing sheet 2 is taken down.
As a specific embodiment of the implantation tool for the compression locking screw 1 provided by the present invention, please refer to fig. 1 to 5, the first driving member 6 includes a first connecting post 601 and a first fixing post 602, the first connecting post 601 connects the lower end surface of the left forceps handle 3 and the first fixing post 602, and the outer diameter of the first fixing post 602 matches with the inner diameter of the operation hole 203; the second driving part 7 comprises a second connecting column 701 and a second fixing column 702, the second connecting column 701 is connected with the lower end face of the right forceps handle 4 and the second fixing column 702, and the outer diameter of the second fixing column 702 is matched with the inner diameter of the operation hole 203.
Specifically, referring to fig. 1 to 5, the first driving member 6 includes a first connecting post 601 and a first fixing post 602, the first connecting post 601 connects the first fixing post 602 and the left forceps handle 3, the first fixing post 602 is insertable into the operation hole 203, the second driving member 7 includes a second connecting post 701 and a second fixing post 702, the second connecting post 701 connects the second fixing post 702 and the right forceps handle 4, and the second fixing post 702 is insertable into the operation hole 203, so as to facilitate the detachment of the pressurizing sheet 2.
As a specific embodiment of the implantation tool for the compression locking screw 1 provided by the present invention, please refer to fig. 3 to 5, an anti-slip structure is disposed between the left forceps handle 3 and the right forceps handle 4.
Specifically, referring to fig. 3 to 5, an anti-slip structure is disposed between the left forceps handle 3 and the right forceps handle 4, so as to prevent the left forceps handle 3 and the right forceps handle 4 from slipping during use of the device, and improve the stability of the device in use.
As a specific embodiment of the utility model provides a pair of pressurization locking screw 1 implants instrument, please refer to fig. 3 to 5, anti-skidding structure includes first card strip 8 and the second card strip 9 that the cooperation set up from top to bottom, and first card strip 8 sets up in one side that left side pincers handle 3 is close to right side pincers handle 4, and second card strip 9 sets up in one side that right side pincers handle 4 is close to left side pincers handle 3, all is equipped with location tooth 10 on the terminal surface of first card strip 8 and the mutual laminating of second card strip 9.
Specifically, please refer to fig. 3 to 5, the anti-slip structure includes a first clamping strip 8 and a second clamping strip 9, the first clamping strip 8 and the second clamping strip 9 are vertically attached to each other, the first clamping strip 8 is disposed on the left forceps handle 3, the second clamping strip 9 is disposed on the right forceps handle 4, and the attaching end faces of the first clamping strip 8 and the second clamping strip 9 are respectively provided with a positioning tooth 10, so as to prevent the left forceps handle 3 and the right forceps handle 4 from slipping in the use process of the device, and improve the use stability of the device.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A compression locking screw, comprising: the locking screw comprises a locking screw cap and a locking screw rod, the locking screw cap is in threaded connection with a locking hole in the fixing plate, the pressing piece is an elastic piece and is provided with a side opening, the pressing piece is arranged around the locking screw rod close to one end of the locking screw cap, and the inner diameter of the pressing piece is smaller than the outer diameter of the locking screw cap.
2. The compression lock screw as in claim 1, wherein the compression plate has two free ends each provided with an operation hole for fitting with an implantation tool.
3. The compression lock screw of claim 2, wherein the width of the side opening is smaller than the inner diameter of the compression plate.
4. The compression lock screw of claim 2, wherein the locking nut free end is provided with a rotational slot.
5. The compression lock screw of claim 2, wherein the locking nut has a diameter that decreases as the locking nut approaches the locking nut shaft.
6. The compression lock screw of claim 2, wherein the compression plate is a metallic material.
7. A compression lock screw implantation tool for implanting a compression lock screw as claimed in any one of claims 2 to 6, comprising a left forceps handle and a right forceps handle, the left forceps handle being hingedly connected to the right forceps handle, a first driving member being provided at an end of the left forceps handle remote from the handle end, and a second driving member being provided at an end of the right forceps handle remote from the handle end; the first driving piece and the second driving piece simultaneously exert force on the pressurizing sheet, so that the side opening is expanded and the pressurizing sheet is removed from the locking screw.
8. The compression lock screw implant tool of claim 7, wherein said first driving member includes a first connecting post and a first fixing post, said first connecting post connecting said lower end surface of said left forceps handle and said first fixing post, said first fixing post having an outer diameter matching said inner diameter of said operating hole; the second driving piece comprises a second connecting column and a second fixing column, the second connecting column is connected with the lower end face of the right forceps handle and the second fixing column, and the outer diameter of the second fixing column is matched with the inner diameter of the operating hole.
9. The compression lock screw implant tool of claim 7, wherein an anti-slip feature is disposed between the left and right forceps handles.
10. The tool according to claim 9, wherein the anti-slip structure comprises a first strip and a second strip, the first strip and the second strip are disposed in a vertical fit manner, the first strip is disposed on a side of the left forceps handle close to the right forceps handle, the second strip is disposed on a side of the right forceps handle close to the left forceps handle, and positioning teeth are disposed on end surfaces of the first strip and the second strip, which are attached to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220825911.8U CN217886178U (en) | 2022-04-11 | 2022-04-11 | Pressurization locking screw and implantation tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220825911.8U CN217886178U (en) | 2022-04-11 | 2022-04-11 | Pressurization locking screw and implantation tool |
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| Publication Number | Publication Date |
|---|---|
| CN217886178U true CN217886178U (en) | 2022-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220825911.8U Active CN217886178U (en) | 2022-04-11 | 2022-04-11 | Pressurization locking screw and implantation tool |
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| CN (1) | CN217886178U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116602749A (en) * | 2023-05-08 | 2023-08-18 | 南方医科大学南方医院 | Compression locking screw and compression locking integrated bone plate nail system |
-
2022
- 2022-04-11 CN CN202220825911.8U patent/CN217886178U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116602749A (en) * | 2023-05-08 | 2023-08-18 | 南方医科大学南方医院 | Compression locking screw and compression locking integrated bone plate nail system |
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