CN215960212U

CN215960212U - Quick change interface for pedicle screw torquemeter

Info

Publication number: CN215960212U
Application number: CN202122131588.2U
Authority: CN
Inventors: 张顺聪; 刘攀杰; 袁凯; 李永贤; 郭丹青; 唐永超; 马延怀; 邵洋
Original assignee: First Affiliated Hospital of Guangzhou University of Chinese Medicine
Current assignee: First Affiliated Hospital of Guangzhou University of Chinese Medicine
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-03-08
Anticipated expiration: 2031-09-03

Abstract

The utility model relates to the technical field of medical instruments for orthopedic surgery, in particular to a quick-change interface for a pedicle screw torquemeter, which comprises a main body joint, a joint inner cavity extending towards the inside of the main body joint is axially arranged at one side of the main body joint, a button limiting cavity extending to the outer side of the main body joint is radially arranged on the joint inner cavity, a button is installed in the button limiting cavity in a limiting way, the button can do reciprocating linear movement in the direction vertical to the axis of the main body joint, a plug jack is arranged on the button, the axial line of the plug jack is horizontally arranged with the joint inner cavity, the plug can be completely inserted into the joint inner cavity when the plug jack is coaxial with the joint inner cavity, be provided with on the plug jack and carry out spacing lug to the plug, this technical scheme has solved how to realize the quick installation between joint and the plug and has dismantled and guarantee the stable technical problem of connection position installation.

Description

Quick change interface for pedicle screw torquemeter

Technical Field

The utility model relates to the technical field of medical instruments for orthopedic surgery, in particular to a quick-change interface for a pedicle screw torquemeter.

Background

The internal fixation of pedicle screws is a common operation in spinal orthopedics, and the stability of the screws determines the success or failure of the operation. The torque value of the screw in the process of placing the screw by an operator is a reliable index of the stability of the screw. The engineering mechanics torquemeter has high accuracy, sensitive response and convenient measurement. But can not be applied to the orthopedic operating table, therefore, design the used interface of pedicle of vertebral arch screw torquemeter, it is vital to applying engineering mechanics torquemeter to orthopedic operating table.

The quick-change interface comprises a hydraulic quick connector and various fluid quick connectors, and is a special device for quickly connecting or disconnecting pipelines to realize quick assembly and disassembly. Because it can be quickly inserted and pulled out, it can be used in several fields. The quick interface connection structure is the most important part of the quick connector, and the connection mode and the structure of the quick interface connection structure directly determine the use convenience, the reliability and the product quality of the quick connector. The hydraulic quick connector is used on a hydraulic pipeline which is frequently disassembled and assembled, and can be disassembled and assembled without tools.

The existing quick-change interface has a complex structure and high manufacturing cost, and can cause the misoperation of an outer sleeve lock to separate the joint when a pipeline is dragged or under the condition of impact and vibration, so that the use effect and the use safety of the quick joint are influenced, and the quick joint is complex to install and disassemble and is not quick enough.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, a quick-change interface for a pedicle screw torquemeter is provided. According to the technical scheme, the technical problems of how to realize quick installation and disassembly between the connector and the plug and ensure stable installation of the connecting part are solved.

In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows:

the utility model provides an used quick change interface of pedicle of vertebral arch screw torquemeter, includes, the main part connects, one side axial that the main part connects is provided with the joint inner chamber that extends towards the main part connects inside extension, radially be provided with the spacing chamber of button that extends to the main part and connect the outside on the joint inner chamber, the spacing installation button in the spacing intracavity of button, the reciprocal linear motion can be done to the axis direction that the button connects at the perpendicular to main part, the plug jack has been seted up on the button, the axis of plug jack sets up with joint inner chamber level, the plug jack can insert completely when the joint inner chamber is coaxial with the joint inner chamber in, is provided with on the plug jack and carries out spacing lug to the plug.

Preferably, a convex block is arranged at the center of the plug jack of the button, the convex block is arc-shaped, the radian of the convex block is matched with the direction of the plug jack, and the axis of the convex block is parallel to the axis of the plug jack.

Preferably, the inside that the main part connects is provided with the spacing chamber of spring with the relative one side in the spacing chamber of button, and the spacing chamber of spring sets up on the radial direction that connects the inner chamber with the spacing chamber of button is coaxial, and the spacing intracavity of spring is equipped with the spring, and the spring is used for promoting the button and outwards removes with the bottom butt of button, spring.

Preferably, the main part connects still including the pin jack, and the pin jack radially sets up in the both sides in the spacing chamber of button, and one side of pin jack extends to joint inner chamber's opening one side, and the interpolation of pin jack is equipped with detachable pin, and the diameter of pin is the same with pin jack inner wall diameter, and the pin is used for the removal of fixed button.

Preferably, the button also comprises a waist-shaped jack, the waist-shaped jack is radially arranged on two sides of the button and penetrates through the button, the maximum width of the waist-shaped jack is the same as the diameter of the pin jack, and the pin penetrates through the waist-shaped jack for limiting installation.

Preferably, the top of the outer side of the button is provided with a certain radian.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the plug is quickly installed by changing the space of the inner cavity of the joint in the main body joint through the button, so that the installation operation is simplified, and the installation efficiency is improved.

2. The plug inserted into the inner cavity of the connector is limited by the convex block protruded from the plug jack of the button, so that the stable installation of the plug and the connector is ensured.

3. According to the utility model, the automatic reset of the button is realized through the spring arranged at the bottom of the button, and the elastic force of the spring which recovers deformation moves outwards to the position where the plug jack and the joint inner cavity are coaxial, so that the limit of the convex block on the plug is realized.

4. According to the utility model, the pin is matched with the pin jack and the waist-shaped jack, so that the button can only move on the opening space of the waist-shaped jack, the limit of the moving range of the button is realized, the button is ensured not to be separated from the main body joint, and meanwhile, the button can also move in an effective space.

5. According to the utility model, the radian arranged at the top of the button is used for protecting the finger part of a user when the user presses the button to a certain extent, so that the right-angle edge of the button is prevented from being cut, the pressing touch feeling of the button is improved to a certain extent, and the user can conveniently and rapidly operate the button.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A-A;

FIG. 4 is a perspective view of the push button of the present invention;

FIG. 5 is a front view of the push button of the present invention;

FIG. 6 is an exploded perspective view of the present invention;

the reference numbers in the figures are:

1-a body joint; 1 a-a joint lumen; 1 b-a button limit cavity; 1 c-a spring limit cavity; 1 d-pin insertion holes;

2-a button; 2 a-plug and jack; 2a 1-bumps; 2 b-a kidney-shaped jack;

3-a spring;

4-pin.

Detailed Description

The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

In order to solve the technical problem of how to realize quick installation and disassembly between a connector and a plug and ensure stable installation of a connecting part, as shown in fig. 1 to 3, the following technical scheme is provided:

the utility model provides an used quick change interface of pedicle of vertebral arch screw torquemeter, includes, main part joint 1, one side axial that main part joint 1 is provided with the joint inner chamber 1a that extends towards main part joint 1 inside, radially be provided with the spacing chamber of button 1b that extends to the main part joint 1 outside on joint inner chamber 1a, spacing installation button 2 in the spacing chamber of button 1b, reciprocal linear motion can be done at the axis direction that perpendicular to main part connects 1 to button 2, plug jack 2a has been seted up on the button 2, plug jack 2 a's axis and joint inner chamber 1a level set up, plug jack 2a can insert completely when coaxial with joint inner chamber 1a in the plug can connect inner chamber 1a, is provided with on the plug jack 2a and carries out spacing lug 2a1 to the plug.

Specifically, in the present embodiment, the main body connector 1 is connected and installed with the plug through the connector inner cavity 1a, the button 2 capable of moving in the radial direction of the connector inner cavity 1a is arranged in the connector inner cavity 1a, the plug jack 2a in the button 2 can move to change the position, when the plug receptacle 2a of the push button 2 is moved to be in line with the axis of the connector cavity 1a, the plug can smoothly pass through the plug jack 2a and enter the joint inner cavity 1a for limiting installation, when the limiting installation of the plug is finished, the convex block 2a1 on the plug jack 2a can limit the plug to ensure the stable installation of the plug, when the user needs to insert and pull the plug quickly, can be through pressing button 2, button 2 removes the position adjustment who makes plug jack 2a in the spacing chamber 1b of button, and lug 2a1 release plug makes things convenient for pulling out of plug, realizes quick dismantlement.

Further:

in order to solve the technical problem of how the bump 2a1 limits the position of the plug, as shown in fig. 4 and 5, the following technical solutions are provided: the center of the plug jack 2a of the button 2 is provided with a convex block 2a1, the convex block 2a1 is arc-shaped, the radian of the convex block 2a1 is matched with the direction of the plug jack 2a, and the axis of the convex block 2a1 is parallel to the axis of the plug jack 2 a.

Specifically, in this embodiment, as viewed from the axial direction of the main body joint 1, the axis of the protrusion 2a1 is located right above the axis of the plug jack 2a, and the arc of the plug jack 2a is matched with the arc of the protrusion 2a1, when the user presses the button 2 to move the button 2 in the button limiting cavity 1b, when the axis of the protrusion 2a1 and the joint cavity 1a are located on the same straight line, the plug can be smoothly inserted into the joint cavity 1a, after the plug is inserted, the user releases the button 2, and the protrusion 2a1 moves into the limiting groove of the plug to limit the plug, and at this time, the axis of the plug jack 2a and the axis of the joint cavity 1a are located on the same straight line to ensure the installation space of the plug.

Further:

in order to solve the technical problem that how the button 2 moves under the action of no force after the plug is inserted into the inner cavity 1a of the connector, so that the lug 2a1 limits the plug, as shown in fig. 3, the following technical scheme is provided: the inside of main part joint 1 is provided with the spacing chamber of spring 1c with the relative one side in the spacing chamber of button 1b, and the spacing chamber of spring 1c sets up on the radial direction that connects inner chamber 1a with the coaxial setting in the spacing chamber of button 1b, is equipped with spring 3 in the spacing chamber of spring 1c, and spring 3 and button 2's bottom butt, spring 3 are used for promoting button 2 and outwards remove.

Specifically, the inside radial direction of main part joint 1 in this embodiment is provided with the spacing chamber of spring 1c, the spacing chamber of spring 1c is located same straight line with the spacing chamber of button 1b axial, set up spring 3 in the spacing chamber of spring 1c, when the user presses button 2 and moves to lug 2a1 and joint inner chamber 1a coaxial position in the spacing chamber of button 1b, spring 3 produces the deformation compression by button 2's pressure, back in plug inserts joint inner chamber 1a, the user releases button 2, button 2 receives the outside removal of elasticity that spring 3 resumes deformation to plug jack 2a and connects inner chamber 1a coaxial position, realize lug 2a1 spacing to the plug.

Further:

in order to solve the technical problem of how to ensure that the button 2 cannot be separated from the button limit cavity 1b of the body joint 1, as shown in fig. 3 to 6, the following technical solutions are provided: the main part connects 1 and still includes pin jack 1d, and pin jack 1d radially sets up in the both sides of the spacing chamber 1b of button, and one side of pin jack 1d extends to joint inner chamber 1 a's opening one side, and the interpolation of pin jack 1d is equipped with detachable pin 4, and the diameter of pin 4 is the same with pin jack 1d inner wall diameter, and pin 4 is used for the removal of fixed button 2.

The button 2 further comprises a waist-shaped jack 2b, the waist-shaped jack 2b is radially arranged on two sides of the button 2, the waist-shaped jack 2b penetrates through the button 2, the maximum width of the waist-shaped jack 2b is the same as the diameter of the pin jack 1d, and the pin 4 penetrates through the waist-shaped jack 2b for limiting installation.

Specifically, be provided with pin jack 1d in the spacing chamber of button 1b both sides of main part joint 1 in this embodiment, pin jack 1d radially sets up the axis both sides at the spacing chamber of button 1b, and the size of the spacing chamber of button 1b is identical with the size of the waist type jack 2b of setting on button 2, pin jack 1d is used for the position of fixed pin 4, it is spacing to carry out button 2 in pin jack 1d and waist type jack 2b through 4 cartridge of pin, waist type jack 2b is waist type hole, because the existence of pin 4 button 2 only can move on waist type jack 2 b's trompil space, realized spacing to button 2 displacement range, guaranteed that button 2 can not break away from in the main part joint 1, also can remove in effectual space simultaneously.

Further:

in order to solve the technical problem of how to improve the pressing texture of the button 2 to avoid the user from being injured, as shown in fig. 3, the following technical solutions are provided: the top of the outer side of the button 2 is provided with a certain radian.

Specifically, 2 tops of button in this embodiment are provided with certain radian, carry out certain protection to the finger position when the user presses, avoid being cut by the right angle edge of button 2, also promote the touch of pressing of button 2 to a certain extent, and the person of facilitating the use carries out quick operation.

The working principle of the utility model is as follows:

the main body joint 1 of the utility model is connected and installed with a plug through a joint inner cavity 1a, a button 2 which can move along the radial direction of the joint inner cavity 1a is arranged in the joint inner cavity 1a, a plug jack 2a in the button 2 can move to change the position, when the plug receptacle 2a of the push button 2 is moved to be in line with the axis of the connector cavity 1a, the plug can smoothly pass through the plug jack 2a and enter the joint inner cavity 1a for limiting installation, when the limiting installation of the plug is finished, the convex block 2a1 on the plug jack 2a can limit the plug to ensure the stable installation of the plug, when the user needs to insert and pull the plug quickly, can be through pressing button 2, button 2 removes the position adjustment who makes plug jack 2a in the spacing chamber 1b of button, and lug 2a1 release plug makes things convenient for pulling out of plug, realizes quick dismantlement.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A quick-change interface for a pedicle screw torquemeter is characterized by comprising a main body joint (1), a joint inner cavity (1a) extending towards the interior of the main body joint (1) is axially arranged at one side of the main body joint (1), a button limiting cavity (1b) extending to the outer side of the main body joint (1) is radially arranged on the joint inner cavity (1a), a button (2) is installed in the button limiting cavity (1b) in a limiting way, the button (2) can do reciprocating linear movement in the direction vertical to the axis of the main body joint (1), a plug jack (2a) is arranged on the button (2), the axis of the plug jack (2a) is horizontally arranged with the joint inner cavity (1a), when the plug jack (2a) is coaxial with the joint inner cavity (1a), the plug can be completely inserted into the joint inner cavity (1a), a projection (2a1) for limiting the plug is arranged on the plug jack (2 a).

2. The quick-change interface for the pedicle screw torquer as claimed in claim 1, wherein the center of the plug socket (2a) of the button (2) is provided with a projection (2a1), the projection (2a1) is arc-shaped, the radian of the projection (2a1) is matched with that of the plug socket (2a), and the axis of the projection (2a1) is parallel to that of the plug socket (2 a).

3. The quick-change interface used for the pedicle screw torquemeter according to claim 1, wherein a spring limiting cavity (1c) is arranged on one side of the inside of the main body joint (1) opposite to the button limiting cavity (1b), the spring limiting cavity (1c) and the button limiting cavity (1b) are coaxially arranged in the radial direction of the joint inner cavity (1a), a spring (3) is arranged in the spring limiting cavity (1c), the spring (3) is abutted against the bottom of the button (2), and the spring (3) is used for pushing the button (2) to move outwards.

4. The quick-change interface for the pedicle screw torquer according to claim 1, wherein the main body joint (1) further comprises a pin jack (1d), the pin jack (1d) is radially arranged at two sides of the button limiting cavity (1b), one side of the pin jack (1d) extends to one side of an opening of the joint inner cavity (1a), a detachable pin (4) is inserted into the pin jack (1d), the diameter of the pin (4) is the same as that of the inner wall of the pin jack (1d), and the pin (4) is used for fixing the movement of the button (2).

5. The quick-change interface for the pedicle screw torquemeter according to claim 1, wherein the button (2) further comprises a waist-shaped jack (2b), the waist-shaped jacks (2b) are radially arranged on two sides of the button (2), the waist-shaped jacks (2b) penetrate through the button (2), the maximum width of the waist-shaped jacks (2b) is the same as the diameter of the pin jack (1d), and the pin (4) penetrates through the waist-shaped jacks (2b) for limiting installation.

6. The quick-change interface for the pedicle screw torquer as claimed in claim 1, wherein the top of the outer side of the button (2) is provided with a certain radian.