CN219782708U

CN219782708U - Elastic intramedullary nail cutting device

Info

Publication number: CN219782708U
Application number: CN202221335506.4U
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: 2023-10-03
Anticipated expiration: 2032-05-31

Abstract

The utility model belongs to the technical field of medical appliances, and particularly relates to an elastic intramedullary nail shearing device which is provided with a grip, a grip spring, a clamp body, a cover plate, a dowel bar and a movable knife bar; the two handles are respectively fixed on the pliers body and can rotate freely; the movable knife bar is arranged in the pliers body, the cover plate is pressed on the pliers body, and the movable knife bar can freely slide; one end of the two dowel bars is respectively fixed with the two handles, and the other end of the dowel bars is fixed with the movable knife bar and can rotate freely; the two ends of the handle spring are connected with the two handles. The utility model has simple operation, and the tip design of the forceps body can hold the tail part of the elastic intramedullary nail in a narrow space; the groove design of the clamp body has strong holding force, is firm, does not slip, and can smoothly shear the tail of the elastic intramedullary nail; overcomes the defects of the prior product, has strong operation operability and good shearing effect.

Description

Elastic intramedullary nail cutting device

Technical Field

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

Background

For the long bone fracture of the limbs of children, conservative treatment is mostly applied in the traditional treatment, and firstly, the fracture is reset or pulled by a hand and then fixed by gypsum. In recent years, the elastic intramedullary nail has become a main treatment means for long bone fracture of children patients, the elastic intramedullary nail for children is cast by titanium alloy, has a metal strip with a special elbow, has good elastic deformation, can meet the requirement of minimally invasive fracture treatment, can provide stability when the affected limb part is loaded, conforms to the growth requirement of long bones of children in clinical adaptability, and is suitable for most fracture types.

However, with the wide application of the elastic intramedullary nail, the shearing difficulty of the elastic intramedullary nail is gradually revealed, and the main problem is that an instrument engineer designing the shearing device does not communicate with a clinical operator well, and the shearing can be smoothly installed in a large space on a machine tool, but in a narrow area in a child body, the shearing device is heavy, the far-end design is too large, and the tail of the elastic intramedullary nail cannot be contacted, so that the elastic intramedullary nail cannot be normally installed. If the elastic intramedullary nail is forcibly sheared by the enlarged incision, the damage is large, the bleeding is more, and the minimally invasive treatment concept of the elastic intramedullary nail is lost. The traditional elastic intramedullary nail cutting device can not meet clinical needs, clinicians replace the elastic intramedullary nail with bone biting scissors when cutting the tail part of the elastic intramedullary nail, and because the device is not a special device, the device can cause damage to the skin and subcutaneous tissues of children, metal residues are left in the body of a patient, even cause fracture, and simultaneously increase the loss of the bone biting scissors and the medical cost of hospitals.

Disclosure of Invention

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

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

the handle, the handle spring, the clamp body, the cover plate, the dowel bar and the movable knife bar;

the two handles are respectively fixed on the pliers body and can rotate freely;

the movable knife bar is arranged in the pliers body, the cover plate is pressed on the pliers body, and the movable knife bar can freely slide;

one end of the two dowel bars is respectively fixed with the two handles, and the other end of the dowel bars is fixed with the movable knife bar and can rotate freely;

the two ends of the handle spring are connected with the two handles.

Further, the elastic intramedullary nail shearing device weighs 2.5 kg and has the length of 40 cm, and a lever mechanism is adopted for shearing operation.

Further, the handle, the clamp body, the cover plate, the dowel bar and the movable knife bar are connected by rivets, and the handle spring and the handle are fixed by screws.

Furthermore, the pliers body adopts the design of the sharp mouth, the length of the sharp mouth is 6 centimeters, the pliers body can enter a narrow space for operation, the sharp mouth can be used for repeated high-temperature disinfection, and the pliers body is not easy to damage.

Furthermore, the tip of the pliers body is provided with a groove, the deepest depth of the groove is 3 mm, and the pliers are sharp, so that the elastic nails can be held for cutting operation, and metal residues are prevented from being left in the body.

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

the utility model has simple operation, and the tip design of the forceps body can hold the tail part of the elastic intramedullary nail in a narrow space; the groove design of the clamp body has strong holding force, is firm, does not slip, and can smoothly shear the tail of the elastic intramedullary nail; overcomes the defects of the prior product, has strong operation operability and good shearing effect.

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 a cutting device for elastic intramedullary nails provided by an embodiment of the present utility model;

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

fig. 3 is a schematic diagram of a clamp structure of an elastic intramedullary nail shearing device according to an embodiment of the present utility model.

In the figure: 1. a grip; 2. a grip spring; 3. a clamp body; 4. a cover plate; 5. a dowel bar; 6. a movable knife bar.

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 cutting 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 cutting device mainly comprises a grip 1, a grip spring 2, a clamp body 3, a cover plate 4, a dowel bar 5 and a movable cutter bar 6; the two handles 1 are respectively fixed on the pliers body 3, and the handles 1 can rotate freely; the movable knife bar 6 is arranged in the clamp body 3, the cover plate 4 is pressed on the clamp body 3, and the movable knife bar 6 can slide freely; one end of the two dowel bars 5 is respectively fixed with the two handles 1, and the other end is fixed with the movable knife bar 6 and can rotate freely; the two ends of the handle spring 2 are connected with two handles 1.

The elastic intramedullary nail shearing device weighs 2.5 kg and has the length of 40 cm, and a lever mechanism is adopted for shearing operation.

The handle 1, the clamp body 3, the cover plate 4, the dowel bar 5 and the movable knife bar 6 are connected by rivets, and the handle spring 2 and the handle 1 are fixed by screws.

The pliers body 3 adopts a sharp mouth design, the length of the sharp mouth is 6 cm, the pliers body can enter a narrow space for operation, the sharp mouth can be used for repeated high-temperature disinfection, and the pliers body is not easy to damage.

The tip of the pliers body 3 is provided with a groove, the deepest depth of the groove is 3 mm, and the pliers are sharp, so that the elastic nails can be held for cutting operation, and the metal residues are prevented from being left in the body.

When in use, a doctor can hold the handle 1 with one hand and then apply force, and under the action of the dowel bar 5, the movable knife bar 6 moves towards the direction of the tip groove of the forceps body 3, and when the elastic intramedullary nail is positioned in the groove, the movable knife bar 6 can cut off 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 cutting device, characterized in that the elastic intramedullary nail cutting device is provided with:

the two ends of the handle spring are connected with the two handles.

2. The elastic intramedullary nail cutting device of claim 1, wherein the elastic intramedullary nail cutting device is 40 centimeters in length.

3. The elastic intramedullary nail cutting apparatus of claim 1, wherein the forceps body is of a pointed design and has a pointed length of 6 cm.

4. The elastic intramedullary nail cutting apparatus of claim 1, wherein the jaw body tip is provided with a recess having a depth of 3 mm at its deepest point.