CN219614008U

CN219614008U - Elastic intramedullary nail taking-out device

Info

Publication number: CN219614008U
Application number: CN202221335460.6U
Authority: CN
Inventors: 屈继宁; 颉强; 李云峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2023-09-01
Anticipated expiration: 2032-05-31

Abstract

The utility model belongs to the technical field of medical equipment, and particularly relates to an elastic intramedullary nail taking-out device, which is provided with: the clamping device comprises a fixed handle, a movable handle, a clamp body base, a connecting sheet and a stress application sheet; the clamp body base is fixed on the fixed grip; the movable grip is divided into an upper movable grip and a lower movable grip, and is connected to the fixed grip and can slide freely; one end of the stress application piece is fixed with the movable grip, and the other end is fixed with the two connecting pieces; the middle of the two clamp bodies is fixed on the clamp body base, and two ends of the two clamp bodies are respectively fixed on the two connecting sheets. The utility model has simple structure and reasonable design, and the tip of the clamp body can hold the tail of the elastic intramedullary nail in a narrow space; the row of grooves of the tip of the forceps body are designed to have strong holding force, are firm and do not slip, and can smoothly take out the elastic intramedullary nail; the method is more convenient for a clinician to carry out actual operation, saves time and releases the clinician from heavy physical labor; the lesions are smaller and recovery faster for the patient.

Description

Elastic intramedullary nail taking-out device

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to an elastic intramedullary nail taking-out device.

Background

The elastic intramedullary nail for children is used as a new material and is successfully applied in the south-national Hospital in 1997, chen Bochang and the like report that the application of the elastic intramedullary nail for children is started to treat long bone fracture in 2000 in China at first. Aktug and the like prove that the curative effect of the elastic intramedullary nail on the femoral fracture of children is safe and reliable through a large amount of clinical data researches. Biomechanical studies by Doser et al and Kaiser et al confirm that the elastic intramedullary nail treats long bone fractures in children in conformity with physiological characteristics of children. In recent years, elastic intramedullary nails are considered by a plurality of scholars at home and abroad as ideal technology for treating children fracture. Although the elastic intramedullary nail has the characteristics of definite curative effect, light wound, easy tolerance of patients, rapid fracture healing speed and the like, the elastic intramedullary nail has the defects in the step of taking out after fracture healing.

At present, although all the extraction devices are equipped after the elastic intramedullary nail fixation of the long bone fracture of the limbs of the children are provided, an instrument engineer designing the extraction devices does not communicate well with a clinical operator, and the extraction devices can be smoothly installed in a large space on a laboratory machine tool, but in a narrow area in the children, the extraction devices are heavy, the tip design is too large, and the tail of the elastic intramedullary nail cannot be contacted, so that the extraction devices cannot be normally installed. If the elastic intramedullary nail is forcibly taken out by enlarging the incision, the damage is large, the bleeding is more, the minimally invasive treatment concept of the elastic intramedullary nail is lost, meanwhile, family members of patients can consider that the incision is small when the fracture fixation operation is performed for the first time, and the incision for taking the elastic intramedullary nail for the second time is particularly large, so that the medical dispute is easy to cause. The traditional elastic intramedullary nail taking-out device technology can not meet clinical needs, clinicians can replace the elastic intramedullary nails with rongeurs and needle holders when taking out the elastic intramedullary nails, and because the elastic intramedullary nail taking-out device is not a special instrument, bone destruction at the taking-out position of children, even increased risk of fracture and the like can be caused, meanwhile, the internal consumption of rongeurs and needle holders is increased, and the medical cost of hospitals is increased.

Disclosure of Invention

Aiming at the problems existing in the prior art, the utility model provides an elastic intramedullary nail taking-out device.

The utility model is realized in that an elastic intramedullary nail extraction device is provided with:

the clamping device comprises a fixed handle, a movable handle, a clamp body base, a connecting sheet and a stress application sheet;

the clamp body base is fixed on the fixed grip;

the movable handle is divided into an upper movable handle and a lower movable handle, and is connected to the fixed handle and can slide freely;

one end of the stress application piece is fixed with the movable grip, and the other end of the stress application piece is fixed with the two connecting pieces;

the middle of the two clamp bodies is fixed on the clamp body base, and two ends of the two clamp bodies are respectively fixed on the two connecting sheets;

further, the elastic intramedullary nail taking-out device weighs 2.8 kg, and a lever clamping mechanism is adopted for clamping and taking-out operation;

further, the fixed grip, the movable grip, the clamp body base, the connecting sheet and the stress application sheet are connected by rivets, and all parts can freely rotate after connection;

further, the upper movable grip and the lower movable grip are connected by adopting screws;

furthermore, the tip of the forceps body is designed to be capable of penetrating into a deep part of soft tissues for operation;

furthermore, the design of the rows of grooves of the tip of the forceps body can well hold the tail of the elastic intramedullary nail, so that loosening and sliding are avoided.

By combining all the technical schemes, the utility model has the advantages and positive effects that:

the utility model has simple structure and reasonable design, and the tip of the clamp body can hold the tail of the elastic intramedullary nail in a narrow space; the row of grooves of the tip of the forceps body are designed to have strong holding force, are firm and do not slip, and can smoothly take out the elastic intramedullary nail; the method is more convenient for a clinician to carry out actual operation, saves time and releases the clinician from heavy physical labor; the lesions are smaller and recovery faster for the patient.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments of the present utility model will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an elastic intramedullary nail extraction device according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a clamping mechanism of an elastic intramedullary nail extraction device according to an embodiment of the present utility model;

fig. 3 is a schematic view of the structure of a forceps body of an elastic intramedullary nail extraction device according to an embodiment of the present utility model.

In the figure: 1. fixing the handle; 2. a movable grip; 21. a movable grip (upper); 22. a movable grip (lower); 3. a clamp body; 4. a clamp body base; 5. a connecting sheet; 6. a stress application piece.

Detailed Description

The present utility model will be described in further detail with reference to the following examples in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

In view of the problems of the prior art, the present utility model provides an elastic intramedullary nail extraction device, and the present utility model is described in detail below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the elastic intramedullary nail taking-out device mainly comprises a fixed grip 1, a movable grip 2, a clamp body 3, a clamp body base 4, a connecting sheet 5 and a stress application sheet 6; the clamp body base 4 is fixed on the fixed grip 1; the movable grip 2 is divided into an upper movable grip 21 and a lower movable grip 22, and is connected to the fixed grip 1 to be freely slidable; one end of the stress application piece 6 is fixed with the movable grip 2, and the other end is fixed with the two connecting pieces 5; the middle of the two clamp bodies 3 is fixed on the clamp body base 4, and two ends are respectively fixed on the two connecting sheets 5.

The elastic intramedullary nail taking-out device weighs 2.8 kg, and adopts a lever clamping mechanism to carry out clamping and taking-out operation.

The fixed grip 1, the movable grip 2, the clamp body 3, the clamp body base 4, the connecting sheet 5 and the stress application sheet 6 are connected by rivets, and all parts can rotate freely after connection.

The upper movable grip 21 and the lower movable grip 22 are connected by screws.

The tip of the forceps body 3 is designed to be capable of penetrating into a deep part of soft tissue for operation.

The design of the rows of grooves of the sharp mouths of the forceps body 3 can well hold the tail of the elastic intramedullary nail, so that loosening and sliding are avoided.

When in use, a doctor can hold the fixed grip 1 and the movable grip 2 by one hand and then apply force to grasp, the movable grip 2 transmits force to the clamp body 3 through the force applying piece 6 and the connecting piece 5 under the action of the lever force, then the clamp body 3 rotates to clamp, and when the elastic intramedullary nail is positioned in the groove in the tip of the clamp body 3, the clamp body 3 can clamp and take out the elastic intramedullary nail.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The foregoing is merely illustrative of specific embodiments of the present utility model, and the scope of the utility model is not limited thereto, but any modifications, equivalents, improvements and alternatives falling within the spirit and principles of the present utility model will be apparent to those skilled in the art within the scope of the present utility model.

Claims

1. An elastic intramedullary nail extraction device, characterized in that it is provided with:

the clamp body base is fixed on the fixed grip;

the middle of the two clamp bodies is fixed on the clamp body base, and two ends of the two clamp bodies are respectively fixed on the two connecting sheets.

2. The elastic intramedullary nail removal device of claim 1, wherein the elastic intramedullary nail removal device weighs 2.8 kilograms and performs a clamp removal operation using a lever clamp mechanism.

3. The elastic intramedullary nail removal device of claim 1, wherein the tip of the forceps body is configured to maneuver deep into soft tissue.

4. The elastic intramedullary nail removing device according to claim 1, wherein the arrangement of the rows of grooves of the pincer body sharp mouths can well hold the tail of the elastic intramedullary nail to avoid loosening and slipping.