CN117316026A

CN117316026A - A multifunctional wrist joint model for distal radius epiphyseal injury

Info

Publication number: CN117316026A
Application number: CN202311178250.XA
Authority: CN
Inventors: 邢加辉; 库华义; 赵洪洲; 刘鸣峻; 路瑶瑶
Original assignee: TIANJIN HOSPITAL
Current assignee: TIANJIN HOSPITAL
Priority date: 2023-09-13
Filing date: 2023-09-13
Publication date: 2023-12-29

Abstract

The invention discloses a multifunctional wrist joint model for distal radius epiphyseal injury, which relates to the technical field of medical teaching models and has the technical key points that: the bone fracture fixation device comprises a metacarpal bone, a forearm bone, a wrist joint tendon, skin and an epiphyseal module, wherein the forearm bone comprises a radius, the epiphyseal module comprises a distal radius end and a epiphyseal plate, and the epiphyseal module is detachably connected with the radius. The invention can fill the blank of the epiphyseal injury model of children, and truly reflects the injury resetting process. So as to facilitate clinical soft reduction, greatly reduce the reduction times, protect epiphysis and avoid causing epiphysis dysplasia.

Description

Multifunctional wrist joint model for distal radius epiphyseal injury

Technical Field

The invention relates to the technical field of medical teaching models, in particular to a multifunctional wrist joint model for distal radius epiphyseal injury.

Background

At present, all hospitals and medical institutions do not have closed reset models, and closed reset technology is taught as two modes. 1. Text description of teaching materials is combined with schematic illustration; 2. clinical case manipulation. The closed reposition cases of the departments of the teaching hospitals are few, and the experience accumulation of students or primary doctors is difficult.

Distal radius fractures in children are the most common injuries in children with a rate of 17.48% and account for 21.56% of limb injuries, with I, II epiphyseal injuries being the more common, and treatments are based on closed reduction external fixation. The epiphysis of children can not be reset repeatedly and violently so as not to aggravate injury and cause epiphysis dysplasia.

There is a lack of a model for the reduction of the distal radius epiphysis of children on the market, and there is an urgent need for a wrist model that can provide a closed reduction technique to help the pediatrician quickly and skillfully grasp the closed reduction technique for children's common distal radius fractures and epiphysis injuries.

Disclosure of Invention

The invention aims to solve the problems, and provides a multifunctional wrist joint model for distal radius epiphyseal injury, which can fill the blank of the children epiphyseal injury model, and the epiphyseal plate is made of tough and sticky materials, so that the selection of the required force and direction for reposition and the stability of reposition epiphysis can be reflected, and the damage reposition process is reflected more truly. So as to facilitate clinical soft reduction, greatly reduce the reduction times, protect epiphysis and avoid causing epiphysis dysplasia.

In order to achieve the above purpose, the technical scheme of the invention is as follows: a multi-functional distal radius epiphyseal injury wrist joint model comprising a metacarpal bone, a forearm bone, a wrist joint tendon, skin and an epiphyseal module, wherein the forearm bone comprises a radius, the epiphyseal module comprises a distal radius and a epiphyseal plate, and the epiphyseal module is detachably connected with the radius.

Preferably, the distal ends of the metacarpal bones, the forearm bones and the radius are all made by adopting a 3D printing technology, and are made of simulated bone materials, and the skin and the wrist joint tendons are made of medical grade silica gel materials.

Preferably, the epiphyseal plate is of a tough and tacky material.

Preferably, the epiphyseal module is magnetically connected with the radius, a magnetic connecting groove is arranged in the middle of the joint of the distal end of the radius and the radius, a magnetic socket is arranged on the radius, and the magnetic socket is arranged on the dorsal side, the palmar side and the resetting side of the epiphyseal injury part of the radius according to fracture types.

Preferably, the top end of the magnetic socket is provided with a pressure sensing element, and one end of the pressure sensing element far away from the radius is provided with a pressure sensing display.

Compared with the prior art, the beneficial effect of this scheme:

1. the method can accurately embody common typing of the distal epiphyseal injury of the radius of the child and fill the blank of the design of the epiphyseal injury model of the child.

2. The invention can help pediatrician to quickly and skillfully grasp the closed reduction method of common distal radius fracture and epiphyseal injury of children, reduce reduction times and effectively avoid violent reduction from aggravating epiphyseal injury; the practice of the reposition technology can be vividly performed for medical students, and the blank of model-free practice of common reposition treatment of the distal radius epiphyseal injury of children is made up.

Drawings

FIG. 1 is a schematic view of a wrist model structure in an embodiment of the invention;

FIG. 2 is a distal radius bottom view of an embodiment of the present invention;

FIG. 3 is a schematic diagram of a magnetic socket according to an embodiment of the present invention;

in the figure: 1. skin; 2. wrist tendons; 3. radius; 301. distal radius; 4. a epiphyseal plate; 5. metacarpal bones; 6. a magnetic socket; 601. a magnetic connection groove; 7. a pressure sensing display; 701. a pressure sensing element.

Detailed Description

In order that those skilled in the art will better understand the present invention, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, wherein it is to be understood that the illustrated embodiments are merely exemplary of some, but not all, of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The present invention will be described in detail with reference to examples.

Examples:

as shown in fig. 1-3, a multi-functional wrist model of a distal epiphyseal lesion of radius 3 includes a metacarpal bone 5, a forearm bone including radius 3, a wrist tendon 2, skin 1, and an epiphyseal module including distal radius 3 and a epiphyseal plate 4, the epiphyseal module being detachably connected to radius 3.

In the present embodiment, 1:1, a child wrist joint model is simulated and manufactured, the child distal radius 3 fracture and epiphyseal injury model can be simulated by arranging the epiphyseal module, and the medical students can train the closed reposition technique by recovering the epiphyseal module.

The distal ends of the metacarpal bones 5, the forearm bones and the radius bones 3 are all manufactured by adopting a 3D printing technology, and are all made of bionic materials, and the skin 1 and the wrist joint tendon 2 are made of medical grade silica gel materials.

In the embodiment, a 3D printing technology is used to realize a realistic bone model, medical grade silica gel adopted by the bionic wrist tendon 2 has elasticity, real wrist motion and force feedback can be simulated, and the skin 1 also adopts medical grade silica gel to ensure the overall realistic hand feeling.

The epiphyseal plate 4 is made of a tough and viscous material.

In this embodiment, a material having toughness and viscosity characteristics is selected to make the epiphyseal plate 4, which is sufficiently resilient to simulate displacement and stability of the epiphyseal part during reduction. At the same time, the material has a certain viscosity to provide the resistance and traction required during resetting.

The epiphysis module adopts magnetism to connect with radius 3, and radius 3 distal end and radius 3 meet department middle part and are equipped with magnetism spread groove 601, are equipped with magnetism socket 6 on the radius 3, and magnetism socket 6 locates radius 3 epiphysis damage department dorsal part, palmar side and reduction side according to the fracture type.

In the embodiment, a total of 3 magnetic sockets and 6 points are arranged, 2 epiphyseal injury points can simulate different types of epiphyseal injury conditions, and 1 restoration point can realize closing and restoration of epiphyseal, so that medical students can practice and master the correct technique.

The top end of the magnetic socket 6 is provided with a pressure sensing element 701, and one end of the pressure sensing element 701 far away from the radius 3 is provided with a pressure sensing display 7.

In this embodiment, for 3 magnetic sockets 6, there are 3 magnetic connection modules, when the epiphyseal module is located at one of the points, the magnetic socket 6 will press the pressure sensing element when contacting with the magnetic connection groove 601, the corresponding pressure sensing display 7 can provide numerical feedback, when the resetting operation is successful, the corresponding pressure sensing display 7 will display numerical values, and vice versa, the same applies when different epiphyseal damage types need to be simulated. The magnetic connection module is matched with the pressure sensing module to provide a feedback function, and meanwhile, the magnetic connection module can play a role in guiding, so that a medical student can master the resetting force.

The above specific embodiments are provided for illustrative purposes only and are not intended to limit the invention, and modifications, no inventive contribution, will be made to the embodiments by those skilled in the art after having read the present specification, as long as they are within the scope of the patent statutes.

Claims

1. A multi-functional wrist model of a distal epiphyseal injury of the radius (3), characterized by: including metacarpal bone (5), forearm skeleton, wrist joint tendon (2), skin (1) and epiphyseal module, the forearm skeleton includes radius (3), the epiphyseal module includes radius (3) distal end and epiphyseal board (4), the epiphyseal module can dismantle with radius (3) and be connected.

2. A multi-functional wrist model of a distal epiphyseal injury of the radius (3) according to claim 1, wherein: the far ends of the metacarpal bones (5), the forearm bones and the radius bones (3) are all made by adopting a 3D printing technology, simulated bone materials are adopted, and the skin (1) and the wrist joint tendons (2) are made of medical grade silica gel materials.

3. A multi-functional wrist model of a distal epiphyseal injury of the radius (3) according to claim 1, wherein: the epiphyseal plate (4) is made of tough and sticky materials.

4. A multi-functional wrist model of a distal epiphyseal injury of the radius (3) according to claim 1, wherein: the epiphysis module adopts magnetism to be connected with radius (3), radius (3) distal end and radius (3) junction middle part are equipped with magnetism spread groove (601), be equipped with magnetic socket (6) on radius (3), magnetic socket (6) are located radius (3) epiphysis department dorsal part, palmus side and reset side according to the fracture type.

5. A multi-functional wrist model of a distal epiphyseal injury of the radius (3) according to claim 4, wherein: the magnetic socket (6) top is equipped with pressure sensing element (701), pressure sensing element (701) is kept away from radius (3) one end and is equipped with pressure sensing display (7).