CN113598917A - Thrust type external fracture repositor - Google Patents

Abstract

The invention discloses a thrust type external fracture repositor, which comprises a positioning nail and a tension device for applying tension; the tension device comprises a driving component and a driven component; the driving assembly is connected with the driven assembly; the positioning nails are respectively arranged in the driving component and the driven component and are connected with the driving component and the driven component; the active component comprises a control structure; the control structure is arranged in the active component and connected with the active component. The invention has the beneficial effects that: (1) the structure is simple, the installation is convenient, the physical consumption of medical personnel is reduced, and the operation time is shortened; (2) the whole is light and convenient, and the comfort degree of a patient is improved.

Description

Thrust type external fracture repositor

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a thrust type external fracture repositor.

Background

Fracture refers to the continuous complete or partial breakdown of bone structure. The patients often have fracture at one part and multiple fractures in a few, most patients can recover the original functions after timely and proper treatment, and the sequela of different degrees can be left in a few patients.

Bone traction therapy is one of the major methods of treating bone fractures. The main functions are as follows: if the fracture is not significantly displaced, traction can maintain the position of the fracture, the X-ray film is periodically checked during traction, and the position of the fracture is checked through the X-ray film to adjust the traction weight. If the fracture is obviously displaced, the main function of traction is to maintain the position of the fracture or achieve reduction as much as possible, so as to prepare for subsequent operations. In addition, traction has a certain detumescence effect, and the traction can reduce the possibility of injury of the fracture end to the vascular nerve.

However, the traction tool used at present has a complex structure, consumes a lot of time in the installation and removal processes, is inconvenient to use, and requires a patient to be in a lying position for a long time in the use process, thereby increasing the pain of the patient.

The invention aims at the problems and provides a thrust type external fracture repositor.

Disclosure of Invention

In order to overcome the problems in the background art, the invention provides a thrust type external fracture repositor.

A thrust external fracture repositor comprises a positioning nail and a pulling device for applying pulling force; the tension device comprises a driving component and a driven component; the driving assembly is connected with the driven assembly; the positioning nails are respectively arranged in the driving component and the driven component and are connected with the driving component and the driven component; the active component comprises a control structure; the control structure is arranged in the active component and connected with the active component.

Furthermore, the control structure comprises a power end, a push block, a thrust pipeline and a force release pipeline.

Furthermore, the active component also comprises an active component shell and a locking structure.

Furthermore, viscous liquid for transmitting force is arranged in the thrust pipeline and the force release pipeline.

Furthermore, a liquid cabin for installing a power end and a sliding cabin for installing a push block are arranged in the shell of the driving component.

Preferably, the shell of the active component is a square shell, the top of the shell is provided with a through hole for exposing the power end, and the middle of the shell is provided with a threaded hole for installing a positioning nail; the liquid bin is of a hollow cylindrical structure; the sliding cabin is of a hollow rectangular structure; the power end is of a two-section type columnar structure, one end of the power end is of a hexagonal prism structure, and the other end of the power end is of a gear structure; the main body of the push block is of a cylindrical structure, and the top end of the push block is provided with a rectangular block matched with the sliding cabin; the thrust pipeline and the force release pipeline are both of circular tubular structures.

Further, the gear structure of the power end is arranged in the liquid bin and is in rotary connection with the liquid bin; one end of the thrust pipeline is fixedly connected with the liquid cabin, and the other end of the thrust pipeline is fixedly connected with the sliding cabin; one end of the pressure relief pipeline is fixedly connected with the liquid cabin, and the other end of the pressure relief pipeline is fixedly connected with the sliding cabin; the push block is arranged inside the sliding cabin; and the power end is rotated, the gear structure of the power end rotates, the internal viscous liquid is pushed into the thrust pipeline from the force leakage pipeline, and then the push block is pushed to move out of the sliding cabin.

Furthermore, the locking structure comprises a base, a pin rod, a ratchet wheel and a tension spring.

Or the locking and clamping structure comprises a U-shaped groove, a pull rod, a rocker arm, an adjusting pipe, a return spring and a plug block.

Further, the base is arranged inside the active component shell and is fixedly connected with the active component shell; one end of the pin rod is inserted into the tooth seam of the ratchet wheel, and the other end of the pin rod is rotatably connected with the base; one end of the tension spring is fixedly connected with the pin rod, and the other end of the tension spring is fixedly connected with the shell of the driving component.

Preferably, the pull rod is of an L-shaped cylindrical structure; the rocker arm is of a rectangular columnar structure, a circular hole for mounting a pull rod is formed in the end face of one end of the rocker arm, and a slide way for mounting a chock block is formed in the bottom face of the rocker arm; the adjusting pipe is of a rectangular columnar structure, and a round hole for mounting the chock block is formed in the top of the adjusting pipe; the main body of the chock is of a stepped cylindrical structure, and the top of the chock is provided with a sliding block matched with the upper sliding way of the rocker arm.

Preferably, a first shaft section with the diameter matched with the inner diameter of the adjusting pipe, a second shaft section with the diameter smaller than that of the first shaft section, a third shaft section with the diameter same with that of the first shaft section, a fourth shaft section with the diameter same with that of the second shaft section and a fifth shaft section with the diameter same with that of the second shaft section are sequentially arranged on the stepped shaft on the chock block; the length of the shaft section is equal to the distance from the inner wall of the force release pipeline to the inner wall of the shell of the driving component; the length of the second shaft section is equal to the inner diameter of the force release pipeline; the length of the shaft section III is equal to the distance between the inner walls of the thrust pipeline and the force release pipeline; the length of the shaft section IV is equal to the inner diameter of the thrust pipeline; and the length of the shaft section V is greater than the distance from the inner wall of the thrust pipeline to the top surface of the adjusting pipe.

Further, the U-shaped groove is formed in the top of the shell of the active component; one end of the pull rod is inserted into the rocker arm, and the other end of the pull rod is inserted into the U-shaped groove; the reset spring is arranged in the rocker arm, one end of the reset spring is fixedly connected with the pull rod, and the other end of the reset spring is fixedly connected with the rocker arm; one end of the rocker arm is inserted into the pull rod, and the other end of the rocker arm is rotatably connected with the driving component shell; the adjusting pipe is arranged in the shell of the active component and is fixedly connected with the shell of the active component; the adjusting pipe penetrates through the thrust pipeline and the force release pipeline and is connected with the inner parts of the thrust pipeline and the force release pipeline; one end of the chock block is inserted into the adjusting pipe, and the other end of the chock block is connected with the rocker arm in a sliding manner; the pull rod moves in the U-shaped groove and is locked at two ends of the U-shaped groove by matching with the reset spring and the rocker arm; the pull rod controls the rocker arm to rotate, so that the plug block is controlled to slide in the adjusting pipe, when the shaft section II is communicated with the force release pipeline and the shaft section IV is communicated with the thrust pipeline, the whole pipeline is unobstructed, the power end is rotated to adjust the position of the push block, and when the shaft section I is communicated with the force release pipeline and the shaft section III is communicated with the thrust pipeline, the pipeline is locked.

Further, the driven assembly includes a driven assembly housing and a pusher block interface.

Preferably, the driven assembly shell is of a rectangular shell-shaped structure, and the top of the driven assembly shell is provided with a threaded hole for installing a positioning nail.

Preferably, the pushing block interface is fixedly connected with the cylindrical end of the pushing block.

Furthermore, one end of the positioning nail is a cylindrical nail cap, and the other end of the positioning nail is a threaded rod; the top end of the nail cap is provided with a hexagonal hole for installing a positioning nail; the positioning nail penetrates through the driving assembly and the driven assembly respectively and is fixed on the broken bones in a spiral mode, the power end is rotated to adjust the positions between the broken bones, and then the broken bones are locked through the locking and clamping structure.

Further, a power wrench for rotating the power end and a fixing wrench for installing the positioning nail on the broken bone are arranged.

Preferably, the main body of the power wrench is of an L-shaped cylindrical structure, one end of the main body is provided with a cylindrical clamping opening, and the top of the clamping opening is provided with a hole matched with the power end; the fixed spanner is an L-shaped hexagonal prism.

The invention has the beneficial effects that: (1) the structure is simple, the installation is convenient, the physical consumption of medical personnel is reduced, and the operation time is shortened; (2) the whole is light and convenient, and the comfort degree of a patient is improved.

The use method of the invention comprises the following steps:

1. after the positioning nail penetrates through the driving component and the driven component respectively, a fixing wrench is applied to install the positioning nail on the broken bone;

2. the power end is controlled to rotate by using the power wrench, so that the distance between the driving component and the driven component is controlled, and the broken bone is pulled open;

3. after the broken bone is pulled to a proper position, the broken bone is locked by a locking structure.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of an active device according to the present invention;

FIG. 3 is a cross-sectional view of an active assembly of the present invention;

FIG. 4 is a schematic view of a latch structure of the present invention;

FIG. 5 is a schematic view of the follower assembly of the present invention;

FIG. 6 is a schematic view of the overall structure of embodiment 3 of the present invention;

FIG. 7 is a schematic diagram of an active device according to embodiment 4 of the present invention;

FIG. 8 is a schematic diagram of a latch structure according to embodiment 4 of the present invention;

fig. 9 is a schematic diagram of a pipeline path in embodiment 4 of the present invention;

FIG. 10 is a schematic view of a spring lock in embodiment 4 of the present invention;

in the figure, 1, an active component; 11. an active component housing; 12. a power port; 13. a push block; 14. a thrust line; 15. a relief line; 16. a locking structure; 161. a base; 162. a pin rod; 163. a ratchet wheel; 164. A tension spring; 165. a U-shaped groove; 166. a pull rod; 167. a rocker arm; 168. an adjusting tube; 169. a plug block; 2. a driven assembly; 21. a driven assembly housing; 22. a push block interface; 3. positioning nails; 41. a power wrench; 42. and fixing the wrench.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below by specific embodiments, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments, and other advantages and functions of the present invention can be easily understood by those skilled in the art from the disclosure of the present specification. The present invention may be implemented or applied by other different specific embodiments, and features in the following embodiments and examples may be combined with each other without conflict, and all other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1, the external push fracture reduction device of this embodiment includes a positioning nail 3 and a pulling device for applying a pulling force; the tension device comprises a driving component 1 and a driven component 2; the driving component 1 is connected with the driven component 2; the positioning nails 3 are respectively arranged inside the driving component 1 and the driven component 2 and are connected with the driving component 1 and the driven component 2; the active component 1 comprises a control structure; the control structure is disposed inside the active device 1 and connected to the active device 1.

The control structure comprises a power end, a push block 13, a thrust pipeline 14 and a force release pipeline 15.

The active device 1 further includes an active device housing 11 and a latch structure 16. Viscous liquid for transmitting force is arranged inside the thrust pipeline 14 and the pressure relief pipeline 15. The active component shell 11 is internally provided with a liquid cabin for installing a power end and a sliding cabin for installing a push block 13.

The latch structure 16 includes a base 161, a pin 162, a ratchet 163, and a tension spring 164.

The follower assembly 2 includes a follower assembly housing 21 and a pusher block interface 22.

Example 2

As shown in fig. 2 to 5, the following technical solutions are specifically provided for this embodiment on the basis of embodiment 1:

the driving component shell 11 is a square shell, the top of the driving component shell is provided with a through hole for exposing the power end, and the middle of the driving component shell is provided with a threaded hole for installing the positioning nail 3; the liquid bin is of a hollow cylindrical structure; the sliding cabin is of a hollow rectangular structure; the power end is of a two-section type columnar structure, one end of the power end is of a hexagonal prism structure, and the other end of the power end is of a gear structure; the main body of the push block 13 is a cylindrical columnar structure, and the top end of the push block is provided with a rectangular block matched with the sliding cabin; the thrust pipeline 14 and the pressure relief pipeline 15 are both circular tubular structures.

The gear structure of the power end is arranged in the liquid bin and is rotationally connected with the liquid bin; one end of the thrust pipeline 14 is fixedly connected with the liquid cabin, and the other end of the thrust pipeline is fixedly connected with the sliding cabin; one end of the pressure relief pipeline 15 is fixedly connected with the liquid cabin, and the other end of the pressure relief pipeline is fixedly connected with the sliding cabin; the push block 13 is arranged inside the sliding cabin; and when the power end is rotated, the gear structure of the power end rotates to push the viscous liquid inside from the pressure discharge pipeline 15 to the thrust pipeline 14, so that the push block 13 is pushed to move out of the sliding cabin.

The base 161 is disposed inside the active device housing 11 and fixedly connected to the active device housing 11; one end of the pin 162 is inserted into the tooth gap of the ratchet 163, and the other end is rotatably connected to the base 161; one end of the tension spring 164 is fixedly connected to the pin 162, and the other end is fixedly connected to the active component housing 11.

The driven assembly shell 21 is a rectangular shell-shaped structure, and the top of the driven assembly shell is provided with a threaded hole for installing the positioning nail 3.

The pushing block interface 22 is fixedly connected with the cylindrical end of the pushing block 13.

One end of the positioning nail 3 is a cylindrical nail cap, and the other end is a threaded rod; the top end of the nail cap is provided with a hexagonal hole for installing the positioning nail 3; the positioning nail 3 is spirally fixed on the fractured bones after penetrating through the driving component 1 and the driven component 2 respectively, the power end is rotated to adjust the position between the fractured bones, and then the fractured bones are locked by the locking and clamping structure 16.

Example 3

As shown in fig. 6, the following technical solutions are specifically provided for the present embodiment on the basis of embodiment 2:

a power wrench 41 for rotating the power end and a fixing wrench 42 for mounting the set nail 3 on the fractured bone are provided.

The main body of the power wrench 41 is an L-shaped cylindrical structure, one end of the main body is provided with a cylindrical clamping opening, and the top of the clamping opening is provided with a hole matched with the power end; the fixed spanner 42 is an L-shaped hexagonal prism.

Example 4

As shown in fig. 7 to 9, the present embodiment is different from embodiment 3 in that:

the latch structure 16 includes a U-shaped groove 165, a pull rod 166, a rocker arm 167, an adjustment tube 168, a return spring and a plug 169.

The pull rod 166 is an L-shaped cylindrical structure; the rocker arm 167 is a rectangular columnar structure, a circular hole for mounting the pull rod 166 is arranged on the end surface of one end, and a slide way for mounting the chock 169 is arranged on the bottom surface; the adjusting pipe 168 is a rectangular columnar structure, and the top of the adjusting pipe is provided with a round hole for installing the chock 169; the body of the plug 169 is a stepped cylindrical structure, and the top is provided with a slide block matched with the upper slide way of the rocker 167.

A first shaft section with the diameter matched with the inner diameter of the adjusting pipe 168, a second shaft section with the diameter smaller than that of the first shaft section, a third shaft section with the same diameter as that of the first shaft section, a fourth shaft section with the same diameter as that of the second shaft section and a fifth shaft section with the same diameter as that of the second shaft section are sequentially arranged on the stepped shaft on the plug 169; the length of the shaft section is equal to the distance from the inner wall of the force discharge pipeline 15 to the inner wall of the driving component shell 11; the length of the second shaft section is equal to the inner diameter of the force release pipeline 15; the length of the shaft section III is equal to the distance between the inner walls of the thrust pipeline 14 and the force release pipeline 15; the length of the shaft section four is equal to the inner diameter of the thrust pipeline 14; the length of the shaft section five is larger than the distance from the inner wall of the thrust pipeline 14 to the top surface of the adjusting pipe 168.

The U-shaped groove 165 is arranged at the top of the active component shell 11; one end of the pull rod 166 is inserted with the rocker arm 167, and the other end is inserted with the U-shaped groove 165; the return spring is arranged in the rocker arm 167, one end of the return spring is fixedly connected with the pull rod 166, and the other end of the return spring is fixedly connected with the rocker arm 167; one end of the rocker arm 167 is inserted into the pull rod 166, and the other end is rotatably connected with the driving component shell 11; the adjusting pipe 168 is arranged inside the active component housing 11 and is fixedly connected with the active component housing 11; the adjusting pipe 168 penetrates through the thrust pipeline 14 and the force release pipeline 15 and is connected with the insides of the thrust pipeline 14 and the force release pipeline 15; one end of the plug 169 is inserted into the adjusting pipe 168, and the other end is connected with the rocker arm 167 in a sliding way; the pull rod 166 moves in the U-shaped groove 165 and is locked at two ends of the U-shaped groove 165 by matching with a return spring and a rocker arm 167; the pull rod 166 controls the rocker arm 167 to rotate, so that the control plug 169 slides in the adjusting pipe 168, when the shaft section two is communicated with the force release pipeline 15 and the shaft section four is communicated with the thrust pipeline 14, the whole pipeline is unobstructed, the power end is rotated to adjust the position of the push block 13, and when the shaft section one is communicated with the force release pipeline 15 and the shaft section three is communicated with the thrust pipeline 14, the pipeline is locked.

The above description of the embodiments is only for the understanding of the present invention. It should be noted that modifications could be made to the invention without departing from the principle of the invention, which would also fall within the scope of the claims of the invention.

Claims (10)

1. A thrust external fracture repositor comprises a positioning nail and a pulling device for applying pulling force; the tension device is characterized by comprising a driving component and a driven component; the driving assembly is connected with the driven assembly; the positioning nails are respectively arranged in the driving component and the driven component and are connected with the driving component and the driven component; the active component comprises a control structure; the control structure is arranged in the active component and connected with the active component.

2. The external thrust fracture repositor of claim 1, wherein the control structure comprises a power end, a push block, a thrust line and a force relief line; viscous liquid for transmitting force is arranged in the thrust pipeline and the force release pipeline.

3. The external thrust fracture reduction device according to claim 2, wherein the active component further comprises an active component housing and a locking structure; a liquid cabin for installing a power end and a sliding cabin for installing a push block are arranged in the shell of the driving component;

preferably, the shell of the active component is a square shell, the top of the shell is provided with a through hole for exposing the power end, and the middle of the shell is provided with a threaded hole for installing a positioning nail; the liquid bin is of a hollow cylindrical structure; the sliding cabin is of a hollow rectangular structure; the power end is of a two-section type columnar structure, one end of the power end is of a hexagonal prism structure, and the other end of the power end is of a gear structure; the main body of the push block is of a cylindrical structure, and the top end of the push block is provided with a rectangular block matched with the sliding cabin; the thrust pipeline and the force release pipeline are both of circular tubular structures.

4. The external thrust fracture reduction device according to claim 3, wherein the gear structure of the power end is disposed in the fluid chamber and is rotatably connected with the fluid chamber; one end of the thrust pipeline is fixedly connected with the liquid cabin, and the other end of the thrust pipeline is fixedly connected with the sliding cabin; one end of the pressure relief pipeline is fixedly connected with the liquid cabin, and the other end of the pressure relief pipeline is fixedly connected with the sliding cabin; the push block is arranged inside the sliding cabin.

5. The external push-type fracture repositor according to claim 4, wherein said locking structure comprises a base, a pin, a ratchet and a tension spring;

or the locking and clamping structure comprises a U-shaped groove, a pull rod, a rocker arm, an adjusting pipe, a return spring and a plug block.

6. The external thrust fracture reduction device according to claim 5, wherein the base is disposed inside the active component housing and fixedly connected to the active component housing; one end of the pin rod is inserted into the tooth seam of the ratchet wheel, and the other end of the pin rod is rotatably connected with the base; one end of the tension spring is fixedly connected with the pin rod, and the other end of the tension spring is fixedly connected with the shell of the active component;

preferably, the pull rod is of an L-shaped cylindrical structure; the rocker arm is of a rectangular columnar structure, a circular hole for mounting a pull rod is formed in the end face of one end of the rocker arm, and a slide way for mounting a chock block is formed in the bottom face of the rocker arm; the adjusting pipe is of a rectangular columnar structure, and a round hole for mounting the chock block is formed in the top of the adjusting pipe; the main body of the chock block is of a step-shaped cylindrical structure, and the top of the chock block is provided with a sliding block matched with the upper sliding way of the rocker arm;

preferably, a first shaft section with the diameter matched with the inner diameter of the adjusting pipe, a second shaft section with the diameter smaller than that of the first shaft section, a third shaft section with the diameter same with that of the first shaft section, a fourth shaft section with the diameter same with that of the second shaft section and a fifth shaft section with the diameter same with that of the second shaft section are sequentially arranged on the stepped shaft on the chock block; the length of the shaft section is equal to the distance from the inner wall of the force release pipeline to the inner wall of the shell of the driving component; the length of the second shaft section is equal to the inner diameter of the force release pipeline; the length of the shaft section III is equal to the distance between the inner walls of the thrust pipeline and the force release pipeline; the length of the shaft section IV is equal to the inner diameter of the thrust pipeline; and the length of the shaft section V is greater than the distance from the inner wall of the thrust pipeline to the top surface of the adjusting pipe.

7. The external thrust fracture reduction device according to claim 5, wherein the U-shaped slot is disposed at the top of the housing of the active component; one end of the pull rod is inserted into the rocker arm, and the other end of the pull rod is inserted into the U-shaped groove; the reset spring is arranged in the rocker arm, one end of the reset spring is fixedly connected with the pull rod, and the other end of the reset spring is fixedly connected with the rocker arm; one end of the rocker arm is inserted into the pull rod, and the other end of the rocker arm is rotatably connected with the shell of the driving component; the adjusting pipe is arranged in the shell of the active component and is fixedly connected with the shell of the active component; the adjusting pipe penetrates through the thrust pipeline and the force release pipeline and is connected with the inner parts of the thrust pipeline and the force release pipeline; one end of the chock block is inserted into the adjusting pipe, and the other end of the chock block is connected with the rocker arm in a sliding mode.

8. The external thrust fracture reducer of claim 6 or 7, wherein the driven assembly comprises a driven assembly housing and a pusher block interface;

preferably, the driven assembly shell is of a rectangular shell-shaped structure, and the top of the driven assembly shell is provided with a threaded hole for mounting a positioning nail;

preferably, the pushing block interface is fixedly connected with the cylindrical end of the pushing block.

9. The external thrust fracture repositor according to claim 8, wherein one end of said positioning nail is a cylindrical cap and the other end is a threaded rod; the top end of the nail cap is provided with a hexagonal hole for installing a positioning nail; the positioning nail penetrates through the driving assembly and the driven assembly respectively and is fixed on the broken bones in a spiral mode, the power end is rotated to adjust the positions between the broken bones, and then the broken bones are locked through the locking and clamping structure.

10. The external thrust fracture repositor according to claim 9, wherein a power wrench for rotating the power end and a fixing wrench for installing a set screw on a fractured bone are provided;

preferably, the main body of the power wrench is of an L-shaped cylindrical structure, one end of the main body is provided with a cylindrical clamping opening, and the top of the clamping opening is provided with a hole matched with the power end; the fixed spanner is an L-shaped hexagonal prism.

Images