CN113288396A - Torsion-controllable lumbar vertebra turning device - Google Patents
Torsion-controllable lumbar vertebra turning device Download PDFInfo
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- CN113288396A CN113288396A CN202110568027.0A CN202110568027A CN113288396A CN 113288396 A CN113288396 A CN 113288396A CN 202110568027 A CN202110568027 A CN 202110568027A CN 113288396 A CN113288396 A CN 113288396A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws, setting implements or the like
- A61B17/88—Osteosynthesis instruments; Methods or means for implanting or extracting internal or external fixation devices
- A61B17/92—Impactors or extractors, e.g. for removing intramedullary devices
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Abstract
The application relates to the field of medical equipment, in particular to a torsion-controllable lumbar vertebra turning device. A torsion controllable lumbar vertebra turning device comprises a main body, a rotary drum, a torsion structure and a limiting structure; the main body is provided with an inner cavity and an opening communicated with the inner cavity; the rotating drum is rotatably accommodated in the inner cavity and is positioned at one end of the inner cavity close to the opening; the axis of the rotary drum is coincident with the axis of the main body; the torsion structure comprises an elastic piece, a first face gear and a second face gear; the first end face gear is connected with the rotary drum, the second end face gear is slidably accommodated in the inner cavity along the axis of the main body, and the first end face gear is meshed with the second end face gear; the limiting structure is connected with the main body and is positioned at one end of the main body, which is far away from the opening; the elastic piece is accommodated in the inner cavity, and two ends of the elastic piece are respectively abutted with the limiting structure and the second end face gear; the limiting structure is used for adjusting the compression amount of the elastic piece. The lumbar vertebra upender with controllable torsion can avoid the occurrence of sliding threads during the installation of lumbar vertebra screws.
Description
Technical Field
The application relates to the field of medical equipment, in particular to a torsion-controllable lumbar vertebra turning device.
Background
Currently, when lumbar vertebra is diseased or injured, in order to treat or further recover, surgery needs to perform fixed operation treatment on the lumbar vertebra, and lumbar vertebra screws are usually installed. Among the prior art, when the installation lumbar vertebrae screw, need move the fixed of lumbar vertebrae screw in order to carry out the lumbar vertebrae screw through the turning device twist, nevertheless at the in-process of twisting, because the size of torsion is difficult to control, so cause the condition that the smooth silk appears in the lumbar vertebrae screw or damage easily to influence the nail operation of getting in later stage.
Disclosure of Invention
The application provides a controllable lumbar vertebrae turning device of torsion to improve above-mentioned problem.
The invention is particularly such that:
a torsion controllable lumbar vertebra turning device comprises a main body, a rotary drum, a torsion structure and a limiting structure;
the main body is provided with an inner cavity and an opening communicated with the inner cavity; the rotating drum is rotatably accommodated in the inner cavity and is positioned at one end of the inner cavity close to the opening; the axis of the rotary drum is coincident with the axis of the main body;
the torsion structure comprises an elastic piece, a first face gear and a second face gear; the first end face gear is connected with the rotary drum, the second end face gear is slidably accommodated in the inner cavity along the axis of the main body, and the first end face gear is meshed with the second end face gear; the limiting structure is connected with the main body and is positioned at one end of the main body, which is far away from the opening; the elastic piece is accommodated in the inner cavity, and two ends of the elastic piece are respectively abutted with the limiting structure and the second end face gear; the limiting structure is used for adjusting the compression amount of the elastic piece.
In one embodiment of the invention, the limiting structure comprises a movable column and a movable stud; the movable column is slidably accommodated in the inner cavity along the axis of the main body, and the movable stud is in threaded connection with the main body;
the two ends of the movable column along the axis of the main body are respectively abutted against the elastic part and the movable stud, and the movable stud is used for rotating relative to the main body under the action of external force to drive the movable column to slide in the inner cavity, so that the compression amount of the elastic part is adjusted.
In one embodiment of the invention, the tooth profiles of the first face gear and the second face gear are both arc-shaped surfaces.
In one embodiment of the invention, along the axial direction of the main body, the inner cavity comprises a first sub-cavity, a second sub-cavity and a third sub-cavity which are arranged in sequence;
the first sub-cavity is communicated with the opening, and the rotary drum is rotatably accommodated in the first sub-cavity;
the second end face gear is slidably accommodated in the second sub-cavity;
the movable column and the movable stud are both accommodated in the third sub-cavity.
In an embodiment of the invention, along the axial direction of the main body, a plurality of sliding grooves are formed inside the second sub-cavity, a plurality of bosses are arranged on the outer peripheral surface of the second end face gear, and the plurality of bosses are matched with the plurality of sliding grooves in a one-to-one correspondence manner.
In one embodiment of the invention, the main body is provided with an observation hole communicated with the third sub-cavity along the axial direction of the main body, and the peripheral surface of the movable column is provided with an annular scale mark.
In one embodiment of the present invention, the limiting structure further comprises a limiting rod; one end of the main body, which is far away from the opening, is also provided with a limiting hole communicated with the third sub-cavity;
the movable column is provided with a strip-shaped hole along the axis direction of the main body;
the gag lever post and spacing hole threaded connection, and with the cooperation of bar hole, the gag lever post is used for with the both ends butt of the axis direction of bar hole edge main part to the motion in restriction bar hole.
In one embodiment of the invention, the torsion-controllable lumbar upender further comprises an end cap connected with one end of the main body provided with the opening, and the end cap is used for abutting against the rotary drum so as to limit the movement of the end cap along the direction of separating from the inner cavity.
The invention has the beneficial effects that:
the torsion controllable lumbar vertebra turning device comprises a main body, a rotary drum, a torsion structure and a limiting structure; wherein the main body is provided with an inner cavity and an opening communicated with the inner cavity; the rotating drum is rotatably accommodated in the inner cavity and is positioned at one end of the inner cavity close to the opening; the axis of the rotary drum is coincident with the axis of the main body; the torsion structure comprises an elastic piece, a first face gear and a second face gear; the first end face gear is connected with the rotary drum, the second end face gear is slidably accommodated in the inner cavity along the axis of the main body, and the first end face gear is meshed with the second end face gear; the limiting structure is connected with the main body and is positioned at one end of the main body, which is far away from the opening; the elastic piece is accommodated in the inner cavity, and two ends of the elastic piece are respectively abutted with the limiting structure and the second end face gear; the limiting structure is used for adjusting the compression amount of the elastic piece.
The rotating drum is rotatably accommodated in the inner cavity and is positioned at one end of the inner cavity close to the opening; the axis of the rotary drum coincides with the axis of the main body, so that the rotary drum can be matched with the tail end of the lumbar vertebra screw in the using process, and the lumbar vertebra screw can be twisted in the rotating process of the rotary drum through the matching direction. The torsion structure comprises an elastic piece, a first end face gear and a second end face gear, the first end face gear is connected with the rotary drum, the second end face gear is slidably accommodated in the inner cavity along the axis of the main body, and the first end face gear is meshed with the second end face gear; because first terminal surface gear and second terminal surface gear are intermeshing, and second terminal surface gear and main part slidable cooperation, so when the main part rotates under the effect of external force, alright drive the rotary drum through second terminal surface gear and first terminal surface gear and rotate, and at the pivoted in-process, be through the block power between first terminal surface gear and second terminal surface gear, carry out the transmission of power, and then can pass through such a mode, when torsion is too big and be greater than the elastic force that the elastic component applyed in the second terminal surface gear, torsion this moment just can make the second terminal surface gear slide in the inner chamber, thereby avoid driving the rotary drum rotation under the too big condition of torsion, and then avoid the rotary drum to receive too big torsion and lead to appearing smooth silk or damage to the lumbar vertebrae screw of cooperation.
From this, this controllable lumbar vertebrae turning device of torsion can be through torsion structure and limit structure's cooperation work to can adjust the torsion of this controllable lumbar vertebrae turning device of torsion at the in-process that rotates lumbar vertebrae screw and then can avoid the lumbar vertebrae screw smooth silk or damage to appear, and then can be convenient for the installation and the dismantlement of lumbar vertebrae screw, with the normal clear of assurance operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a cross-sectional view of a controllable torque lumbar upender provided herein;
fig. 2 is a schematic structural view of a lumbar vertebra upender with controllable torsion provided by the present application;
fig. 3 is a schematic structural view of the boss and the sliding groove provided in the present application.
Icon: 100-lumbar vertebra turning device with controllable torsion; 110-a body; 120-a rotating drum; 130-torsion configuration; 140-a limit structure; 131-an elastic member; 132-a first face gear; 133-a second face gear; 141-a movable column; 142-a movable stud; 111-a first subcavity; 112-a second subcavity; 113-a third subcavity; 114-a chute; 134-boss; 115-a viewing aperture; 143-a limiting rod; 116-a limiting hole; 144-a strip-shaped hole; 150-end cap.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it should be noted that the indication of orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, or the orientation or positional relationship which is usually understood by those skilled in the art, or the orientation or positional relationship which is usually placed when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1 and 2, the present invention provides a torsion controllable lumbar vertebra turning device 100, which includes a main body 110, a rotating drum 120, a torsion structure 130 and a limiting structure 140;
the main body 110 has an inner cavity and an opening communicating with the inner cavity; the rotating cylinder 120 is rotatably accommodated in the inner cavity and is located at one end of the inner cavity close to the opening; the axis of the drum 120 coincides with the axis of the body 110;
the torsion structure 130 includes an elastic member 131, a first face gear 132 and a second face gear 133; the first end face gear 132 is connected with the drum 120, the second end face gear 133 is slidably accommodated in the inner cavity along the axis of the main body 110, and the first end face gear 132 is meshed with the second end face gear 133; the limiting structure 140 is connected to the main body 110 and located at an end of the main body 110 away from the opening; the elastic piece 131 is accommodated in the inner cavity, and two ends of the elastic piece 131 are respectively abutted against the limiting structure 140 and the second end face gear 133; the stopper 140 is used to adjust the amount of compression of the elastic member 131.
The working principle of the torsion controllable lumbar vertebra upender 100 is as follows:
the torsion controllable lumbar vertebra upender 100 comprises a main body 110, a rotating drum 120, a torsion structure 130 and a limiting structure 140; wherein the body 110 has an inner cavity and an opening communicating with the inner cavity; because the rotating cylinder 120 is rotatably accommodated in the inner cavity and is located at one end of the inner cavity close to the opening; the axis of the drum 120 coincides with the axis of the main body 110, so that the lumbar screw can be twisted during rotation of the drum 120 in the direction of engagement by the drum 120 engaging with the tail end of the lumbar screw during use. The torsion structure 130 includes an elastic member 131, a first face gear 132 and a second face gear 133, the first face gear 132 is connected to the drum 120, the second face gear 133 is slidably received in the inner cavity along the axis of the main body 110, and the first face gear 132 is engaged with the second face gear 133; because the first end face gear 132 and the second end face gear 133 are engaged with each other, and the second end face gear 133 is slidably engaged with the main body 110, when the main body 110 rotates under the action of external force, the drum 120 can be driven to rotate by the second end face gear 133 and the first end face gear 132, and in the rotating process, power transmission is performed by the clamping force between the first end face gear 132 and the second end face gear 133, and further in such a way, when the torsion is too large and is greater than the elastic force applied to the second end face gear 133 by the elastic piece 131, the torsion at the moment can enable the second end face gear 133 to slide in the inner cavity, so that the drum 120 is prevented from being driven to rotate under the condition that the torsion is too large, and further the phenomenon that the screw thread slipping or damage is caused by too large torsion on the drum 120 in which is engaged with the lumbar screws is avoided.
From this, this controllable lumbar vertebrae turning device 100 of torsion can be through the cooperation work of torsion structure 130 and limit structure 140 to can adjust the torsion of this controllable lumbar vertebrae turning device 100 of torsion at the in-process that rotates lumbar vertebrae screw and then can avoid the lumbar vertebrae screw smooth silk or damage to appear, and then can be convenient for the installation and the dismantlement of lumbar vertebrae screw, with the normal clear of guaranteeing the operation.
First, in the process of using the torsion-controllable lumbar vertebra adjustment device 100, the magnitude of the elastic force can be adjusted by the compression amount of the elastic member 131, so that the pressure applied to the second face gear 133 by the elastic member 131 can be adjusted; besides, the compression amount of the elastic element 131 can be adjusted through the limiting structure 140, so that the pressure applied to the second face gear 133 by the elastic element 131 can be adjusted; through the aforesaid setting mode, its purpose is to adjust the pre-compaction pressure between first face gear 132 and second face gear 133, namely, adjust the initial pressure between first face gear 132 and second face gear 133, and when turning the lumbar vertebrae screw through this controllable lumbar vertebrae upender 100 of torsion, when the actual pressure between first face gear 132 and second face gear 133 is greater than initial pressure, first face gear 132 just can break away from the meshing with second face gear 133, namely, when torsion is too big, through the smooth tooth effect between first face gear 132 and second face gear 133, can avoid twisting the lumbar vertebrae screw, thereby can play the effect of protection to the lumbar vertebrae screw.
Secondly, in the present embodiment, the lumbar vertebra screw to which the torsion-controllable lumbar vertebra upender 100 is applied may have various structures, and may be adapted to different lumbar vertebra screws by modifying the structure of the drum 120. In addition, in such a usage mode, the pre-pressure between the first face gear 132 and the second face gear 133 is used for realizing the function of controlling the torque, and in such an arrangement mode, because a plurality of teeth are arranged between the first face gear 132 and the second face gear 133 for matching, in the process of performing torque control through the sliding tooth function between the first face gear 132 and the second face gear 133, the external force can be distributed to each meshed tooth, so that the condition that the first face gear 132 or the second face gear 133 is damaged due to the overlarge external force of a single tooth can be avoided, and further, through such an arrangement mode, the service life of the torsion-controllable lumbar vertebra turning device 100 can be prolonged, and the damage in the use process can be reduced.
In addition, it should be noted that when the maximum torque of the lumbar vertebra adjustment device 100 with controllable torque is set through the elastic member 131 and the limiting structure 140, the maximum torque of the lumbar vertebra adjustment device 100 with controllable torque needs to be greater than the torque when the lumbar vertebra screw is installed in place.
Further, referring to fig. 1 and fig. 2, in the present embodiment, the limiting structure 140 is used for adjusting the compression amount of the elastic member 131, so as to adjust the external force applied to the second end face gear 133 by the elastic member 131, and further adjust the pressure between the first end face gear 132 and the second end face gear 133, thereby adjusting the magnitude of the torsion-controllable lumbar vertebra upender 100; therefore, in the arrangement of the limiting structure 140, the limiting structure 140 may include a movable column 141 and a movable stud 142; wherein, the movable column 141 can be slidably accommodated in the inner cavity along the axis of the main body 110, and the movable stud 142 is in threaded connection with the main body 110; the two ends of the movable column 141 along the axis of the main body 110 are respectively abutted against the elastic element 131 and the movable stud 142, and the movable stud 142 is used for rotating relative to the main body 110 under the action of external force so as to drive the movable column 141 to slide in the inner cavity, thereby adjusting the compression amount of the elastic element 131.
In other words, the length of the movable stud 142 extending into the cavity can be adjusted by rotating the movable stud 142, so that the movable stud 141 can be driven to move in the cavity, and the pressure applied to the second face gear 133 by the elastic member 131 can be adjusted.
Further, referring to fig. 1-3, in the present embodiment, when the first face gear 132 and the second face gear 133 are disposed, in order to avoid an excessive pressure that causes the first face gear 132 and the second face gear to have sliding teeth, the tooth profiles of the first face gear 132 and the second face gear 133 are both arc-shaped surfaces.
In the present embodiment, when the main body 110 is disposed, along the axial direction of the main body 110, the inner cavity includes a first sub-cavity 111, a second sub-cavity 112, and a third sub-cavity 113 disposed in sequence; wherein, the first sub-cavity 111 is communicated with the opening, and the drum 120 is rotatably accommodated in the first sub-cavity 111; the second end gear 133 is slidably received within the second subchamber 112; the movable post 141 and the movable stud 142 are both accommodated in the third sub-cavity 113.
In order to enable the rotation of the main body 110 to drive the second end face gear 133 to rotate, so as to drive the rotation of the drum 120 connected to the first end face gear 132, in this embodiment, a plurality of sliding slots 114 are disposed inside the second sub-cavity 112 along the axis direction of the main body 110, a plurality of bosses 134 are disposed on the outer circumferential surface of the second end face gear 133, and the plurality of bosses 134 are in one-to-one corresponding fit with the plurality of sliding slots 114. Therefore, when the main body 110 rotates under the action of external force, the second face gear 133 in the second sub-cavity 112 can be driven to rotate through the matching of the boss 134 and the sliding chute 114, so that the rotary drum 120 can be driven to rotate through the first face gear 132 meshed with the second face gear 133.
Further, referring to fig. 1-3, in the present embodiment, in the process of adjusting the torsion, it is necessary to detect the maximum torsion of the torsion-controllable lumbar vertebra upender 100, that is, the torsion when the first end face gear 132 and the second end face gear 133 of the torsion-controllable lumbar vertebra upender 100 have sliding teeth, so that the main body 110 is provided with the observation hole 115 communicating with the third sub-cavity 113 along the axial direction of the main body 110, and the outer peripheral surface of the movable column 141 is provided with the annular scale mark. That is, the maximum torsion of the movable column 141 at different displacements can be measured in advance based on the elastic parameters of the elastic member 131 and the displacement amount of the movable column 141, and the torsion value corresponding to the displacement amount of the movable column 141 can be marked on the outer circumferential surface of the main body 110 or the outer circumferential surface of the movable column 141, so that the torsion can be read by the displacement of the movable column 141, and the magnitude of the torsion can be measured.
Further, referring to fig. 1-3, in the present embodiment, in order to limit the displacement of the movable column 141, the limiting structure 140 further includes a limiting rod 143; one end of the main body 110, which is far away from the opening, is also provided with a limiting hole 116 communicated with the third sub-cavity 113; along the axial direction of the main body 110, the movable column 141 is provided with a strip-shaped hole 144; the limiting rod 143 is in threaded connection with the limiting hole 116 and is matched with the strip-shaped hole 144, and the limiting rod 143 is used for abutting against two ends of the strip-shaped hole 144 in the axial direction of the main body 110 to limit the movement of the strip-shaped hole 144.
In order to separate the middle rotating cylinder 120 from the main body 110 during the use process, the torsion-controllable lumbar upender 100 further comprises an end cap 150 connected to one end of the main body 110 provided with an opening, wherein the end cap 150 is used for abutting against the rotating cylinder 120 so as to limit the movement of the end cap 150 along the direction of separating from the inner cavity.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (8)
1. The utility model provides a controllable lumbar vertebrae turning round ware of torsion which characterized in that:
the torsion-controllable lumbar vertebra upender comprises a main body, a rotary drum, a torsion structure and a limiting structure;
the body has an inner cavity and an opening communicating with the inner cavity; the rotating drum is rotatably accommodated in the inner cavity and is positioned at one end of the inner cavity close to the opening; the axis of the drum coincides with the axis of the main body;
the torsion structure comprises an elastic piece, a first face gear and a second face gear; the first face gear is connected with the rotary drum, the second face gear is slidably accommodated in the inner cavity along the axis of the main body, and the first face gear is meshed with the second face gear; the limiting structure is connected with the main body and is positioned at one end of the main body, which is far away from the opening; the elastic piece is accommodated in the inner cavity, and two ends of the elastic piece are respectively abutted against the limiting structure and the second end face gear; the limiting structure is used for adjusting the compression amount of the elastic piece.
2. The torsion controllable lumbar vertebra upender as claimed in claim 1, wherein:
the limiting structure comprises a movable column and a movable stud; the movable column is slidably accommodated in the inner cavity along the axis of the main body, and the movable stud is in threaded connection with the main body;
the movable column is respectively abutted against the elastic piece and the movable stud along two ends of the axis of the main body, and the movable stud is used for rotating relative to the main body under the action of external force so as to drive the movable column to slide in the inner cavity, thereby adjusting the compression amount of the elastic piece.
3. The torsion controllable lumbar vertebra upender as claimed in claim 2, wherein:
the tooth profiles of the first face gear and the second face gear are both arc-shaped faces.
4. The torsion controllable lumbar vertebra upender as claimed in claim 2, wherein:
along the axial direction of the main body, the inner cavity comprises a first sub-cavity, a second sub-cavity and a third sub-cavity which are sequentially arranged;
the first sub-cavity is communicated with the opening, and the rotary drum is rotatably accommodated in the first sub-cavity;
the second end face gear is slidably accommodated in the second sub-cavity;
the movable column and the movable stud are both accommodated in the third sub-cavity.
5. The torsion controllable lumbar vertebra upender as claimed in claim 4, wherein:
follow the axis direction of main part, the inside of second sub cavity is provided with the multichannel spout, the outer peripheral face of second terminal surface gear is provided with a plurality of bosss, and is a plurality of the boss is with a plurality of the spout one-to-one cooperation.
6. The torsion controllable lumbar vertebra upender as claimed in claim 4, wherein:
along the axis direction of main part, the main part seted up with the observation hole of third sub cavity intercommunication, the outer peripheral face of activity post is provided with annular scale sign.
7. The torsion controllable lumbar vertebra upender as claimed in claim 4, wherein:
the limiting structure further comprises a limiting rod; one end of the main body, which is far away from the opening, is also provided with a limiting hole communicated with the third sub-cavity;
the movable column is provided with a strip-shaped hole along the axis direction of the main body;
the gag lever post with spacing hole threaded connection, and with the bar hole cooperation, the gag lever post be used for with the bar hole is followed the both ends butt of the axis direction of main part is followed to the restriction the motion in bar hole.
8. The torsion-controllable lumbar vertebra upender as claimed in any one of claims 1 to 7, wherein:
the torsion-controllable lumbar vertebra turning device further comprises an end cover connected with one end, provided with the opening, of the main body, and the end cover is used for being abutted to the rotary drum so as to limit the movement of the end cover in the direction of being separated from the inner cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110568027.0A CN113288396A (en) | 2021-05-25 | 2021-05-25 | Torsion-controllable lumbar vertebra turning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110568027.0A CN113288396A (en) | 2021-05-25 | 2021-05-25 | Torsion-controllable lumbar vertebra turning device |
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| Publication Number | Publication Date |
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| CN113288396A true CN113288396A (en) | 2021-08-24 |
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| CN202110568027.0A Pending CN113288396A (en) | 2021-05-25 | 2021-05-25 | Torsion-controllable lumbar vertebra turning device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114754052A (en) * | 2022-04-22 | 2022-07-15 | 上海华育金属有限公司 | Novel screw |
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| CN212071749U (en) * | 2020-02-20 | 2020-12-04 | 义成工厂股份有限公司 | Torsion screwdriver |
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| US20130180819A1 (en) * | 2012-01-17 | 2013-07-18 | Zai-Shun YOU | Torque-limiting coupling |
| CN108161812A (en) * | 2016-12-07 | 2018-06-15 | 锐泰精密工具股份有限公司 | Unidirectional fixed torque screwdriver |
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Application publication date: 20210824 |