CN216317928U

CN216317928U - Reduction assistor for head and face irregular bone fracture

Info

Publication number: CN216317928U
Application number: CN202122281493.9U
Authority: CN
Inventors: 冯冬冬; 葛明华; 谭卓; 忻莹; 虞昆; 孟可馨
Original assignee: Zhejiang Provincial Peoples Hospital
Current assignee: Zhejiang Provincial Peoples Hospital
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-04-19
Anticipated expiration: 2031-09-18

Abstract

The utility model discloses an auxiliary device for reduction of irregular bone fracture of a head and a face, belongs to the technical field of medical equipment, and aims to solve the problem that reduction is performed by using a limited space after dislocation fracture of the head and the face. The assistor includes first cylinder and second cylinder, first cylinder with be equipped with at least two sets of control assembly between the second cylinder, control assembly is including articulating first movable rod on the first cylinder with articulate second movable rod on the second cylinder, first movable rod with be equipped with the gear external member between the second movable rod simultaneously with both meshes. The movement of the broken bone is controlled by operating the gear rotation, the stability of force application is easier to control, larger force can be applied in a limited space, the muscle tissue at the broken bone does not need to be cut in a large area, and the side effect of the operation is reduced; the direction of the force application can be parallel to the surface of the fractured bone to the maximum extent, so that the damage caused by the shearing force is reduced to the maximum extent.

Description

Reduction assistor for head and face irregular bone fracture

Technical Field

The utility model belongs to the technical field of medical equipment, and relates to an auxiliary device for reduction of irregular bone fracture of head and face.

Background

In the face of a patient with head and face fracture, particularly after the fracture end is dislocated, facial tissues are usually required to be cut, and the fractured bone is fully exposed for reduction, but a plurality of important nerves and blood vessels are densely distributed on the head and face, and the cutting reduction inevitably brings a plurality of unnecessary injuries. The existing incision reduction needs to pry the dislocated fracture broken end by using a stripper according to a lever principle, and the force application process has strong uncontrollable performance and the main defects are as follows:

1. more tissue is cut and separated to fully expose the surgical field, which brings additional damage;

2. the periosteum is inevitably damaged in the process of prying the stripper, and the nutrition of the bone tissue mainly comes from the periosteum, so that the healing of the fractured end of the fracture is influenced after the nutrition is damaged;

3. irregular fracture edges at the broken ends of the bones are deformed or broken bones fall off in the prying process, so that the folding of the broken ends is not facilitated;

4. the prying process can also create compression and traction on surrounding tissue, increasing soft tissue edema and artificial lacunae, which can also increase the risk of infection by weeping fluid accumulating in the artificial lacunae.

Disclosure of Invention

The utility model provides a reduction auxiliary device for irregular bone fracture of a head and a face, aiming at solving the problem that the reduction is carried out by using a limited space after dislocation fracture of the head and the face.

The utility model is realized by the following steps:

the utility model provides a supplementary ware that resets is fractured to irregular bone in cranium face, its characterized in that is including being used for being connected to many cylinders on the broken bone, connects and is equipped with two sets of control assembly between the cylinder on the different broken bones, control assembly is including articulating first movable rod and the second movable rod on different cylinders respectively, first movable rod with be equipped with the gear external member between the second movable rod simultaneously with both meshes.

The cylinder is including connecting first cylinder and the second cylinder on different disconnected bones, and two sets of control assembly set up between first cylinder and second cylinder, and first movable rod articulates on first cylinder, and the second movable rod articulates on the second cylinder.

The gear external member includes the gear and takes the rail groove of embracing of locking gear function, have on first movable rod and the second movable rod embrace the rail portion with embrace the cooperation of rail groove in order to prevent the gear with first movable rod and second movable rod break away from.

The auxiliary device comprises an operating part, and an operating port which is conveniently in transmission connection with the operating part is formed in the gear.

The operating part comprises an operating rod, a transmission part is arranged on the side wall of the end part of the operating rod, and the transmission part is embedded into the eccentric opening.

And two side walls of the eccentric opening are provided with limiting grooves, and the transmission part is embedded into the limiting grooves.

The operation opening penetrates through the gear.

The first cylinder and the second cylinder are sleeved with movable fixing sleeves, and the first movable rod and the second movable rod are hinged to the fixing sleeves.

The first cylinder and the second cylinder have a plurality of fixing grooves thereon, the fixing grooves being axially arranged along the first cylinder and the second cylinder.

The ends of the first cylinder and the second cylinder, which correspond to the drill bit, are provided with external threads.

The reduction assistor for the fracture of the irregular bone on the head and the face controls the movement of the broken bone through the rotation of the operating gear, so that the controllability of force application is greatly improved, the blood vessel, nerve and muscle tissues at the broken bone are prevented from being cut in a large area to fully expose the operative field, and the side injury of the operation is reduced.

Drawings

FIG. 1 is a schematic view of the connection of an aid to a fractured bone;

FIG. 2 is a schematic structural view of the auxiliary device;

FIG. 3 is a schematic view of a gear structure;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 6 is a schematic structural diagram of the operating member;

fig. 7 is a schematic structural diagram of the first pillar.

Reference is made to the accompanying drawings in which: 110. a first column; 120. a second cylinder; 130. fixing a sleeve; 140. fixing grooves; 150. a drill bit; 160. an external thread; 210. a first control assembly; 220. a second control assembly; 230. a first movable bar; 240. a second movable bar; 300. a gear; 310. an operation port; 311. a central opening; 312. an eccentric orifice; 313. a limiting groove; 400. an operating member; 410. an operating lever; 420. a transmission section; 430. a handle; 510. a first broken bone; 520. the second broken bone.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in connection with the accompanying drawings for the purpose of facilitating understanding and understanding of the technical solutions of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

The embodiment provides a reduction assistor for fracture of irregular bones of head and face, as shown in fig. 1-5, comprising a plurality of columns connected to the fractured bones, two sets of control assemblies arranged between the columns connected to different fractured bones, the control assemblies comprising a first movable rod 230 and a second movable rod 240 respectively hinged to different columns, and a gear sleeve set arranged between the first movable rod 230 and the second movable rod 240 and engaged with the first movable rod 230 and the second movable rod 240. Specifically, the gear kit includes a gear, with the gear meshing with both. The column comprises a first column body 110 and a second column body 120 which are connected to different fractured bones, two groups of control components are arranged between the first column body 110 and the second column body 120, a first movable rod 230 is hinged to the first column body 110, and a second movable rod 240 is hinged to the second column body 120.

As shown in fig. 1, the first fractured bone 510 and the second fractured bone 520 are originally integrated bone tissues, which are now fractured and dislocated, and the first fractured bone and the second fractured bone need to be subjected to reduction and docking. The first cylinder 110 and the second cylinder 120 are vertically fixed to the first fractured bone and the second fractured bone, respectively, and the two sets of control components are the first control component 210 and the second control component 220, respectively, and operate the gear 300 of the first control component 210 and also operate the gear 300 of the second control component 220. When the gear 300 of the first control assembly 210 is operated, the first cylinder 110 and the second cylinder 120 control the movement of the fractured bone by using the hinge point corresponding to the second control assembly 220 as a fulcrum, for example, the gear 300 of the first control assembly 210 rotates, so that the two hinge points corresponding to the first control assembly 210 approach each other, and the first fractured bone and the second fractured bone gradually separate from each other. On the contrary, when the gear 300 of the second control component 220 is controlled, the first cylinder 110 and the second cylinder 120 move the fractured bone by using the corresponding hinge point of the first control component 210 as a fulcrum, so that the doctor can select the gear 300 and the rotating direction according to the actual fracture situation, the operation is flexible, the stability of force application is easier to control, the muscle tissue at the fractured bone does not need to be cut in a large area, and the side effect of the operation is reduced. The periosteum is not easy to damage in the operation process, the adverse effect on fracture healing is reduced, the moving amplitude of the broken bone can be better controlled, the extrusion and traction of tissues around the broken bone are reduced, the soft tissue edema and artificial lacuna are reduced, and the infection risk is reduced.

In the process of reduction, the function of a patient can be better protected and recovered, the force applied from the outside is mainly concentrated on the broken bone, and the damage to adjacent tissues can be greatly reduced. More complex fracture reduction requirements can also be addressed through the combined use of several sets of aids. The required space of assistor can be less, and the doctor of being convenient for utilizes narrow and small operation space to operate, can carry out the external reduction of no incision dislocation fracture even under the CT guide, and then shortens the operation time, reduces postoperative infection risk, makes things convenient for postoperative care, can extend the quick processing of being applied to battlefield first aid and incident. Has better applicability to the fracture of irregular bones of the head and the face, in particular to the malposition fracture condition.

The gear 300 is provided with a rail holding groove, and the first movable rod 230 and the second movable rod 240 are provided with rail holding parts which cooperate with the rail holding groove to prevent the gear 300 from being disengaged from the first movable rod 230 and the second movable rod 240. Meanwhile, the rail holding groove also has the function of locking the rotation of the gear.

As shown in fig. 2 to 6, the auxiliary device includes an operation member 400, and the gear 300 has an operation port 310 for facilitating transmission connection with the operation member 400. The operation opening 310 comprises a central opening 311, the side edge of the central opening 311 is provided with an eccentric opening 312 extending to the edge of the gear 300, the operation member 400 comprises an operation rod 410 and a handle 430, the side wall of the end part of the operation rod 410 is provided with a transmission part 420, and the transmission part 420 is embedded in the eccentric opening 312. Two side walls of the eccentric opening 312 are provided with limiting grooves 313, and the transmission part 420 is embedded into the limiting grooves 313.

During specific operation, imbed eccentric mouthful 312 with the transmission part 420 of operating piece 400, then rotate operating piece 400, transmission part 420 just can further imbed in the spacing groove 313, spacing about spacing groove 313's roof and diapire can form transmission part 420, avoid transmission part 420 application of force in-process to break away from spacing groove 313, guarantee operating piece 400 and gear 300 complex stability, be difficult for because of reasons such as hand trembles break away from with gear 300's cooperation, guarantee the stability of operation application of force.

As shown in fig. 1 to 5, the operation port 310 penetrates the gear 300. This ensures that the operating element 400 can pass through the gear 300 of the first control assembly 210, facilitates the transmission part 420 to be inserted into the limiting groove 313 of the gear 300 of the second control assembly 220 for controlling the gear 300 of the second control assembly 220, facilitates the transmission part 420 to be switched between the gear 300 of the first control assembly 210 and the gear 300 of the second control assembly 220, and improves the smoothness of the surgical operation.

As shown in fig. 7, the first cylinder 110 and the second cylinder 120 are sleeved with a movable sleeve 130, and both the first movable rod 230 and the second movable rod 240 are hinged to the sleeve 130. Thus, the relative positions of the first control element 210 and the second control element 220 can be adjusted by adjusting the position of the retaining sleeve 130, and the relative positions of the first control element 210 and the second control element 220 to the bone surface can be adjusted to control the stress moment and thus the labor saving and accuracy of the operation.

As shown in fig. 7, the first cylinder 110 and the second cylinder 120 have a plurality of fixing grooves 140 formed thereon, and the fixing grooves 140 are axially arranged along the first cylinder 110 and the second cylinder 120. The fixing sleeve 130 may be fixed to the first and

second cylinders

110 and 120 by screws, and the fixing grooves 140 may limit displacement of the screws, so that the fixing of the fixing sleeve 130 and the first and

second cylinders

110 and 120 is more reliable.

As shown in fig. 1 and 7, the ends of the first cylinder 110 and the second cylinder 120 are provided with a drill 150. The first cylinder 110 and the second cylinder 120 are inserted into the bone by rotation. The end parts of the first cylinder 110 and the second cylinder 120, corresponding to the drill 150, are provided with the external threads 160, and the external threads 160 can prevent the first cylinder 110 and the second cylinder 120 from being separated from a broken bone, so that the reliability of connection between the first cylinder 110 and the second cylinder 120 and the broken bone is improved, and the condition that broken bones fall off on irregular fracture edges is reduced.

In the description of the present invention, it is to be understood that the terms "central," "lateral," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the figures, merely to facilitate the description of the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Claims

1. The reduction assistor for the fracture of the irregular bones of the head and the face is characterized by comprising a plurality of cylinders connected to the fractured bones, wherein two groups of control components are arranged between the cylinders connected to different fractured bones, each control component comprises a first movable rod (230) and a second movable rod (240) which are respectively hinged to different cylinders, and a gear sleeve is arranged between the first movable rod (230) and the second movable rod (240) and is simultaneously meshed with the first movable rod and the second movable rod;

the cylinder includes first cylinder (110) and second cylinder (120) of connection on different disconnected bones, the tip that first cylinder with the second cylinder corresponds the drill bit has the external screw thread, and first cylinder and second cylinder are embedded into disconnected bone through rotating.

2. The reduction aid for the irregular bone fracture of head and face according to claim 1, characterized in that two sets of control components are arranged between the first cylinder (110) and the second cylinder (120), the first movable rod (230) is hinged on the first cylinder (110), and the second movable rod (240) is hinged on the second cylinder (120).

3. The reduction aid for the irregular bone fracture of head and face according to claim 2, wherein the gear set comprises a gear and a rail holding groove with a function of locking the gear, and the first movable rod (230) and the second movable rod (240) have rail holding parts and rail holding grooves which cooperate to prevent the gear (300) from being disengaged from the first movable rod (230) and the second movable rod (240).

4. The reduction aid for irregular head and face bone fracture according to claim 3 is characterized in that the aid comprises an operating member (400), and the gear (300) is provided with an operating port (310) which is conveniently in transmission connection with the operating member (400).

5. The reduction aid for irregular bone fracture of head and face according to claim 4, characterized in that the operation opening (310) comprises a central opening (311), the side of the central opening (311) is provided with an eccentric opening (312) extending to the edge of the gear (300), the operation member (400) comprises an operation rod (410), the side wall of the end of the operation rod (410) is provided with a transmission part (420), and the transmission part (420) is embedded into the eccentric opening (312).

6. The reduction aid for the irregular bone fracture of head and face according to claim 5, characterized in that the two side walls of the eccentric opening (312) are provided with limiting grooves (313), and the transmission part (420) is embedded in the limiting grooves (313).

7. The reduction aid for the irregular bone fracture of head and face as claimed in claim 4, wherein the operation port (310) penetrates through the gear (300).

8. The reduction aid for the irregular bone fracture of head and face as claimed in claim 2, wherein said first cylinder (110) and said second cylinder (120) are sleeved with a movable fixing sleeve (130), and said first movable rod (230) and said second movable rod (240) are both hinged on said fixing sleeve (130).

9. The reduction aid for the irregular bone fracture of head and face according to claim 8, wherein the first cylinder (110) and the second cylinder (120) have a plurality of fixing grooves (140), and the fixing grooves (140) are axially arranged along the first cylinder (110) and the second cylinder (120).