CN219661864U - Ring type outer frame micro-motion adjusting piece - Google Patents

Abstract

The utility model relates to a ring type outer frame micro-motion adjusting piece. The device comprises an outer column mechanism, a nut device for adjusting the space between fixed rings in a ring-type outer fixed support, a core bar component for pressing the nut device and a spring component arranged on the outer column mechanism; the core bar component is arranged on the outer cylinder mechanism; the nut device is arranged on the core bar component; the core bar component is abutted against the spring component; the outer column mechanism is connected with a lower fixing ring of the ring-type outer fixing support; the core rod component is connected with an upper fixing ring of the ring-type external fixing support. The technical problems that a general ring-type external fixing support in the prior art adopts strong fixing, the upper fixing ring and the lower fixing ring of the ring-type external fixing support cannot be adjusted up and down in a small range, and the conditions of bone nonunion and difficult healing of partial patients cannot be met are solved.

Description

Ring type outer frame micro-motion adjusting piece

Technical Field

The utility model relates to the field of ring-type external fixing brackets, in particular to a ring-type external bracket micro-motion adjusting piece.

Background

The ring type external fixing support system is applicable to most fractures of human bodies, and is mainly used for treating fractures of long bones (including fractures around joints), humerus, tibia, femur, wrist joints, pelvis, ankle joints and the like. The general ring type external fixation support adopts fixed connection, and the upper and lower two fixed rings of the ring type external fixation support can not be adjusted up and down in a small range, so that the general ring type external fixation support can not meet the requirements under the condition that bones of partial patients are disconnected and are difficult to heal. The micro-motion adjusting piece provided by the utility model can promote the upper and lower fixing rings to carry out small-range up-down adjustment, on one hand, the bone periosteum growth can be stimulated, and on the other hand, the bedridden patient can also simulate the walking state under the ground.

Disclosure of Invention

The embodiment of the utility model solves the technical problems that a general ring-type external fixing support in the prior art adopts strong fixing, the upper and lower fixing rings of the ring-type external fixing support cannot be adjusted up and down in a small range, and the situation that bones are disconnected and difficult to heal cannot be met for partial patients by providing the ring-type external frame micro-motion adjusting piece.

The technical scheme adopted by the embodiment of the utility model is as follows:

the ring-type outer frame micro-motion adjusting piece comprises an outer column mechanism, a nut device, a core bar component and a spring component, wherein the nut device is used for adjusting the distance between fixed rings in a ring-type outer fixing support, the core bar component is used for pressing the nut device, and the spring component is arranged on the outer column mechanism; the core bar component is arranged on the outer cylinder mechanism; the nut device is arranged on the core rod component; the core rod assembly is abutted against the spring assembly; the outer cylinder mechanism is connected with a lower fixing ring of the ring-type outer fixing support; the core rod component is connected with an upper fixing ring of the ring-type outer fixing support.

The further technical scheme is as follows: the outer cylinder mechanism comprises an outer cylinder and a limiting pin for limiting the core rod assembly; the limiting pin is arranged in the inner cavity of the outer cylinder; the core rod component is clamped on the limiting pin.

The further technical scheme is as follows: the outer column body is provided with an exhaust hole; the vent holes are used for exhausting the gas in the inner cavity of the outer cylinder when the core rod assembly is pressed.

The further technical scheme is as follows: the nut assembly includes a nut and a ball spring pin disposed on the nut; the nut is arranged on the core rod component; the ball spring pin rolls on the outer cylinder inner cavity.

The further technical scheme is as follows: a groove matched with the ball spring pin is formed in the inner cavity surface of the outer cylinder; when the nut rotates a certain angle, the ball spring pin is embedded into the groove.

The further technical scheme is as follows: the core bar assembly comprises a core bar, a lug for abutting against the spring assembly and a limit groove formed in the core bar; the nut is connected with the core rod in a threaded manner; the convex blocks are arranged on the core bar; the limiting pin is arranged in the limiting groove in a penetrating mode.

The further technical scheme is as follows: the spring assembly includes a spring disposed about the stem and a spacer for compressing the spring; one end of the spring is propped against the inner cavity of the outer cylinder, and the other end of the spring is propped against the gasket; the pad abuts against the bump.

The further technical scheme is as follows: the ring-type outer frame micro-motion adjusting piece also comprises scale marks; the scale marks are arranged on the surface of the outer cylinder.

One or more technical solutions provided in the embodiments of the present utility model at least have the following technical effects or advantages:

1. because the outer cylinder mechanism, the nut device and the core rod component are arranged, the outer cylinder mechanism is fixedly connected with the lower fixing ring of the ring-type outer fixing bracket, and the core rod component is fixedly connected with the upper fixing ring of the ring-type outer fixing bracket. When the adjusting member is in a non-fully compressed state, at this time, the nut means and the outer cylinder means have a space gap of at most 3mm, and by pressing the two fixing rings, the distance between the two fixing rings can be fine-tuned. By means of the arrangement of the spring assembly, the two fixing rings can be automatically reset after being released. Therefore, the adjusting piece can carry out small-range up-down adjustment on the upper fixing ring and the lower fixing ring of the ring-type external fixing support, and has better treatment effect on the condition that partial patients are disconnected in bone and difficult to heal. The space gap between the nut device and the outer cylinder mechanism can be changed by rotating the nut device, and then the fine adjustment distance between the upper fixing ring and the lower fixing ring can be changed, so that patients with different requirements can be met.

2. Due to the adoption of the setting of the limiting pin, the core rod component and the nut device can be clamped on the outer column, and when the adjusting piece is in the fine adjustment process, the core rod component and the nut device can be effectively prevented from falling off from the outer column.

3. Due to the arrangement of the exhaust holes, the adjusting piece can be more convenient for the core bar component to press flexibly in the fine adjustment process, and then the upper fixing ring and the lower fixing ring are more flexible in the fine adjustment process.

4. Due to the arrangement of the ball spring pin, when the nut is manually rotated, the ball spring pin rolls along the side wall of the inner cavity of the outer column body, so that the nut can be better rotated in the inner cavity of the outer column body, and further fine adjustment of the adjusting piece is facilitated.

5. Due to the arrangement of the grooves, when the screw cap rotates once, the adjusting piece is provided with the sound feedback that the ball spring pin is impacted on the inner wall of the grooves, so that a user is better reminded of adjusting the distance.

6. Due to the adoption of the arrangement of the protruding blocks, when the core bar is pressed, the core bar drives the protruding blocks to compress the spring assembly, and when the core bar is loosened, the spring assembly enables the core bar to reset, so that the adjusting piece can adjust the upper fixing ring and the lower fixing ring of the ring type external fixing support up and down in a small range. Through the setting of spacing groove, can make the spacer pin slide on the spacing groove, make the core bar card hold on the outer cylinder simultaneously.

7. Due to the arrangement of the spring and the gasket, after the core bar is loosened, the core bar is reset due to the elastic force provided by the spring, so that the upper fixing ring and the lower fixing ring of the ring-type external fixing support are automatically reset after being compressed.

8. The scale marks are arranged on the surface of the outer column body, so that a worker can observe the adjusting stroke of the adjusting piece in the fine adjustment process conveniently.

Drawings

Fig. 1 is a schematic structural diagram for embodying a connection relationship between a ring-type outer frame micro-motion adjusting member and a ring-type outer fixing bracket in an embodiment of the present utility model.

Fig. 2 is a schematic structural diagram for embodying an initial state of a ring-type outer frame fine motion adjusting member in an embodiment of the present utility model.

Fig. 3 is a schematic structural diagram for embodying an initial state of a ring-type outer frame fine motion adjusting member in an embodiment of the present utility model.

Fig. 4 is a schematic structural view of a ring-type outer frame micro-motion adjusting member in a fully compressed state according to an embodiment of the present utility model.

Fig. 5 is a schematic view of a part of a structure for showing a connection relationship between a limiting pin and a limiting groove in an embodiment of the present utility model.

Fig. 6 is a schematic view of a portion of a structure for representing the scale marks on the surface of the outer cylinder in an embodiment of the present utility model.

In the figure: 1. an outer cylinder mechanism; 11. an outer cylinder; 111. an exhaust hole; 112. a groove; 12. a limiting pin; 2. a nut assembly; 21. a screw cap; 22. ball spring pin; 3. a core bar assembly; 31. a core bar; 32. a bump; 33. a limit groove; 4. a spring assembly; 41. a spring; 42. a gasket.

Detailed Description

The embodiment of the utility model solves the technical problems that a general ring-type external fixing support in the prior art adopts strong fixing, the upper and lower fixing rings of the ring-type external fixing support cannot be adjusted up and down in a small range, and the situation that bones are disconnected and difficult to heal cannot be met for partial patients by providing the ring-type external frame micro-motion adjusting piece.

The technical scheme in the embodiment of the utility model aims to solve the problems, and the overall thought is as follows:

in order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.

The ring-type outer frame micro-motion adjusting piece comprises an outer cylinder mechanism 1, a nut device 2 for adjusting the space between fixing rings in a ring-type outer fixing support, a core bar component 3 for pressing the nut device 2 and a spring component 4 arranged on the outer cylinder mechanism 1, as shown in fig. 1, 2 and 4. The core rod assembly 3 is provided on the outer cylinder mechanism 1. The nut assembly 2 is mounted on the core rod assembly 3. The core rod assembly 3 rests against the spring assembly 4. The outer column mechanism 1 is connected to the lower fixing ring of the ring-type outer fixing support. The core rod component 3 is connected with an upper fixing ring of the ring-type external fixing support.

Screw holes are formed in the bottom of the outer cylinder mechanism 1, and the bottom of the outer cylinder mechanism 1 is fixedly connected with a lower fixing ring of the ring-type outer fixing support through screws. Screw holes are formed in the top of the core rod assembly 3, and the top of the core rod assembly 3 is fixedly connected with an upper fixing ring of the ring-type external fixing support through a threaded rod. The core rod component 3 is clamped in the inner cavity of the outer cylinder mechanism 1. The nut means 2 is screwed onto the core rod assembly 3 while the nut means 2 rests in the inner cavity of the outer cylinder mechanism 1. The nut assembly 2 can be moved along the core rod assembly 3 by manually rotating the nut assembly 2. The gap between the nut assembly 2 and the outer cylinder mechanism 1, which can be compressed, is 3mm, so that the distance the nut assembly 2 moves along the core rod assembly 3 is 3mm. The spring assembly 4 is located in the inner cavity of the outer cylinder mechanism 1. The top of the spring assembly 4 rests against the core rod assembly 3. The spring assembly 4 can be compressed by pressing the core assembly 3. When the core assembly 3 is released, the spring assembly 4 provides an elastic force to the core assembly 3, so that the core assembly 3 is restored. When the adjusting member is in a non-fully compressed state, as a space gap of at most 3mm exists between the nut device 2 and the outer cylinder mechanism 1, the core rod assembly 3 is pressed downwards at this time, the spring assembly 4 is compressed by the core rod assembly 3, and the adjusting member is restored to the original position after being loosened, so that the micro-adjustment of a short distance is achieved. When the adjustment member is in the initial state, the nut device 2 is rotated, the space gap is correspondingly reduced, and the achievable micro-adjustment is correspondingly reduced until the fully compressed state is reached, wherein the gap is 0, and the adjustment cannot be performed.

Through the arrangement of the outer cylinder mechanism 1, the nut device 2 and the core bar component 3, the core bar component 3 is fixedly connected with the upper fixing ring of the ring-type outer fixing support as the outer cylinder mechanism 1 is fixedly connected with the lower fixing ring of the ring-type outer fixing support. When the adjusting member is in a non-fully compressed state, at this time there is a space gap of at most 3mm between the nut means 2 and the outer cylinder mechanism 1, by pressing the two fixing rings, the distance between the two fixing rings can be fine-tuned. By the arrangement of the spring assembly 4, the two securing rings can be automatically reset after release. Therefore, the adjusting piece can carry out small-range up-down adjustment on the upper fixing ring and the lower fixing ring of the ring-type external fixing support, and has better treatment effect on the condition that partial patients are disconnected in bone and difficult to heal. The space gap between the nut device 2 and the outer cylinder mechanism 1 can be changed by rotating the nut device 2, and then the fine adjustment distance between the upper fixing ring and the lower fixing ring can be changed, so that patients with different requirements can be met.

As shown in fig. 3, the outer cylinder mechanism 1 includes an outer cylinder 11 and a stopper pin 12 for stopping the core pin assembly 3. The limiting pin 12 is arranged in the inner cavity of the outer cylinder 11. The core bar assembly 3 is clamped on the limiting pin 12.

The limiting pin 12 is fixedly connected in the inner cavity of the outer column 11. The core rod assembly 3 is positioned in the inner cavity of the outer column 11, and meanwhile, the bottom of the core rod assembly 3 is clamped on the limiting pin 12, so that the core rod assembly 3 and the nut device 2 are effectively prevented from falling off from the outer column 11.

Through the setting of spacer 12, can make core bar subassembly 3 and nut device 2 card hold on outer cylinder 11, when the regulating part in fine setting, can effectively prevent core bar subassembly 3 and nut device 2 from coming off in outer cylinder 11.

As shown in fig. 3, the outer cylinder 11 is provided with an exhaust hole 111. The exhaust hole 111 is used to exhaust the gas of the inner cavity of the outer cylinder 11 when the core rod assembly 3 is pressed.

Because there is the space clearance between core bar subassembly 3 bottom and the outer cylinder 11 inner chamber, consequently through the setting of exhaust hole 111, can make in pressing core bar subassembly 3 in-process, the gas in outer cylinder 11 inner chamber is discharged through exhaust hole 111, and then makes outer cylinder 11 inner chamber unanimous with external pressure, makes things convenient for the pressing of core bar subassembly 3.

Through the setting of exhaust hole 111, can make the regulating part in fine setting process, can make things convenient for core bar subassembly 3 nimble pressing more, and then make two upper and lower solid fixed ring more nimble in fine setting process.

As shown in fig. 3, the nut assembly 2 includes a nut 21 and a ball spring pin 22 provided on the nut 21. A nut 21 is mounted on the core assembly 3. The ball spring pin 22 rolls over the inner cavity of the outer cylinder 11.

A nut 21 is screwed onto the core rod assembly 3. The nut 21 is provided with a clamping groove matched with the ball spring pin 22, and the ball spring pin 22 is in threaded connection with the clamping groove on the nut 21. The ball spring pin 22 is tightly attached to the inner cavity of the outer cylinder 11, and when the nut 21 is rotated, the ball spring pin 22 rolls along the side wall of the inner cavity of the outer cylinder 11.

Through the setting of ball spring pin 22, when manual rotatory nut 21, ball spring pin 22 rolls along outer cylinder 11 inner chamber lateral wall, can be better make nut 21 rotate in outer cylinder 11 inner chamber, and then make things convenient for the fine setting of regulating part.

As shown in fig. 3, the inner cavity surface of the outer cylinder 11 is provided with a groove 112 adapted to the ball spring pin 22. When the nut 21 is rotated by a certain angle, the ball spring pin 22 is inserted into the groove 112.

The length of the groove 112 in the vertical direction is adapted to the length of the gap in which the adjustment member is compressible, so that when the adjustment member is finely adjusted to a fully compressed state and the nut 21 is rotated by a certain angle, the ball spring pin 22 is inserted into the groove 112, and the sound of the ball spring pin 22 striking the inner wall of the groove 112 can be heard.

Through the setting of recess 112, when nut 21 rotates certain angle, the regulating part has the sound feedback that ball spring round pin 22 impacted at recess 112 inner wall, better warning user adjusts the distance.

As shown in fig. 3 and 5, the core rod assembly 3 includes a core rod 31, a projection 32 for abutting against the spring assembly 4, and a limit groove 33 provided on the core rod 31; the nut 21 is screwed to the core rod 31. The bump 32 is disposed on the core bar 31. The limiting pin 12 is penetrated in the limiting groove 33.

The bump 32 is fixedly connected to the core bar 31, and the bump 32 is driven to move downwards by pressing the core bar 31, so that the spring assembly 4 is compressed, and when the core bar 31 is loosened, the spring assembly 4 provides upward elastic force for the bump 32, so that the core bar 31 is reset. The limiting groove 33 is formed in the bottom end of the core rod 31, and the core rod 31 is clamped on the limiting pin 12 through the limiting groove 33, and then is clamped on the outer cylinder 11.

Through the setting of lug 32, can make when pressing core bar 31, core bar 31 drives lug 32 compression spring assembly 4, and when unclamping core bar 31, spring assembly 4 makes core bar 31 reset, consequently makes the regulating part can carry out the upper and lower regulation of two solid fixed rings of ring type external fixation support in a small range. By the arrangement of the limit groove 33, the limit pin 12 can slide on the limit groove 33, and the core bar 31 can be clamped on the outer cylinder 11.

As shown in fig. 3, the spring assembly 4 includes a spring 41 disposed around the stem 31 and a spacer 42 for compressing the spring 41. One end of the spring 41 abuts against the inner cavity of the outer cylinder 11 and the other end abuts against the spacer 42. The pad 42 abuts against the bump 32.

The spring 41 and the gasket 42 are sleeved on the core bar 31. The top of the spring 41 rests against the bottom of the spacer 42 and the bottom of the spring 41 rests against the inner cavity of the outer cylinder 11. Since the spacer 42 abuts against the bump 32, when the core rod 31 is pressed, the bump 32 on the core rod 31 drives the spacer 42 to move downward, and the spacer 42 compresses the spring 41. When the core bar 31 is released, the spring 41 compressed at this time moves the spacer 42 upward due to the elastic force, thereby resetting the core bar 31.

By the arrangement of the spring 41 and the spacer 42, after the core bar 31 is released, the core bar 31 is reset due to the elastic force provided by the spring 41, so that the upper and lower fixing rings of the ring-type external fixing support are automatically reset after being compressed.

As shown in fig. 6, the ring-type outer frame micro-motion adjusting piece further comprises scale marks; graduation marks are provided on the surface of the outer cylinder 11.

The scale mark on the surface of the outer cylinder 11 is matched with the length of the gap which can be compressed by the adjusting piece, when the adjusting piece needs to be finely adjusted, the nut 21 is rotated and the scale mark on the surface of the outer cylinder 11 is observed, the nut 21 can move along the scale mark on the surface of the outer cylinder 11 in the process of rotating the nut 21, and at the moment, the finely adjusted gap of the adjusting piece can be judged by observing the position of the nut 21 corresponding to the scale mark.

Through the scale mark that is provided with on the outer cylinder 11 surface, can make things convenient for the staff to observe the regulation stroke of regulating part in the fine setting in-process.

While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims (8)

1. The ring-type outer frame micro-motion adjusting piece is characterized by comprising an outer column mechanism (1), a nut device (2) for adjusting the space between fixed rings in a ring-type outer fixed support, a core rod component (3) for pressing the nut device (2) and a spring component (4) arranged on the outer column mechanism (1); the core bar component (3) is arranged on the outer cylinder mechanism (1); the nut device (2) is arranged on the core rod assembly (3); the core rod assembly (3) is abutted against the spring assembly (4); the outer cylinder mechanism (1) is connected with a lower fixing ring of the ring-type outer fixing support; the core rod component (3) is connected with an upper fixing ring of the ring-type external fixing support.

2. The ring-type outer frame fine motion adjusting member according to claim 1, wherein the outer cylinder mechanism (1) comprises an outer cylinder (11) and a limiting pin (12) for limiting the core rod assembly (3); the limiting pin (12) is arranged in the inner cavity of the outer column body (11); the core rod assembly (3) is clamped on the limiting pin (12).

3. A ring-type outer frame fine motion adjusting member according to claim 2, wherein the outer column (11) is provided with an exhaust hole (111); when the core rod assembly (3) is pressed, the exhaust hole (111) is used for exhausting the gas in the inner cavity of the outer cylinder (11).

4. A ring-type outer frame fine adjustment according to claim 2, characterized in that the nut means (2) comprises a nut (21) and a ball spring pin (22) arranged on the nut (21); the nut (21) is arranged on the core rod assembly (3); the ball spring pin (22) rolls on the inner cavity of the outer cylinder (11).

5. The ring-type outer frame fine motion adjusting piece according to claim 4, characterized in that a groove (112) matched with the ball spring pin (22) is formed on the inner cavity surface of the outer column body (11); when the nut (21) rotates a certain angle, the ball spring pin (22) is embedded in the groove (112).

6. The ring-type outer frame fine motion adjusting piece according to claim 4, characterized in that the core bar assembly (3) comprises a core bar (31), a lug (32) for abutting against the spring assembly (4) and a limit groove (33) formed on the core bar (31); the nut (21) is in threaded connection with the core rod (31); the lug (32) is arranged on the core bar (31); the limiting pin (12) is arranged in the limiting groove (33) in a penetrating mode.

7. A ring-type outer frame fine adjustment according to claim 6, characterized in that the spring assembly (4) comprises a spring (41) arranged around the core bar (31) and a spacer (42) for compressing the spring (41); one end of the spring (41) is propped against the inner cavity of the outer column body (11), and the other end is propped against the gasket (42); the pad (42) abuts against the bump (32).

8. The ring-type outer frame fine motion adjustment member according to claim 6, wherein the ring-type outer frame fine motion adjustment member further comprises graduation marks; the scale marks are arranged on the surface of the outer cylinder (11).