CN210077796U

CN210077796U - Aiming and guiding device for bone nail fixing hole

Info

Publication number: CN210077796U
Application number: CN201920350436.1U
Authority: CN
Inventors: 李增光; 李富春
Original assignee: Suzhou Caring Medical Co ltd
Current assignee: Suzhou Caring Medical Co ltd
Priority date: 2019-03-19
Filing date: 2019-03-19
Publication date: 2020-02-18
Anticipated expiration: 2029-03-19

Abstract

The utility model discloses a bone nail fixed orifices aims guiding device, it includes a stand pipe, be equipped with several optic fibre in the stand pipe, the one end of stand pipe is equipped with the connector, still be equipped with a reflection of light lens in the stand pipe, reflection of light lens sets up and is keeping away from the one end of connector, be equipped with a light trap on the lateral wall of stand pipe, reflection of light lens be used for with the light that optic fibre jetted out reflects the follow jet out in the light trap. This guiding device is aimed to bone nail fixed orifices passes through on optic fibre shines light reflection lens when using, and reflection lens focuses on light, reflects, sends from the light trap, when the stand pipe inserted the bone cavity along with the intramedullary nail like this, only needs to remove the stand pipe and makes the locking hole position on the light trap intramedullary nail correspond, realizes the accurate positioning of bone nail fixed orifices.

Description

Aiming and guiding device for bone nail fixing hole

Technical Field

The utility model relates to a medical instrument, in particular to a bone nail fixing hole aiming guide device which is used for guiding and positioning an intramedullary nail in the process of treating orthopedic trauma.

Background

Intramedullary nail internal fixation is widely applied as an effective means for treating fracture internal fixation, and development and production of an intramedullary nail instrument matched with the intramedullary nail internal fixation can promote the development of minimally invasive surgery and restore the physiological function of a human body, thereby having wide market prospect in the field of orthopedics. Each type of intramedullary nail instrument comprises an intramedullary nail, and an aiming positioning instrument and a universal surgical instrument which are corresponding to the intramedullary nail, wherein the instruments form an intramedullary nail positioning system. At present, when a patient with long tubular fracture is treated, an intramedullary nail is often used for fixing the fracture part, namely, after the intramedullary nail is inserted into a bone cavity, a locking hole is drilled on bone tissue, and then the bone tissue is fixedly connected with the intramedullary nail by the locking nail.

At present, two most commonly used intramedullary nail aiming techniques are adopted, one is that a doctor positions the bone tissue by using X-rays by hands, and the other is that an intramedullary nail calibrator positions the bone tissue by using the X-rays, the two methods both need to irradiate the bone tissue by using the X-rays and find a hole on the bone tissue, but the continuous use of the X-rays can generate a large amount of radiation, thereby bringing unnecessary ray injury to a doctor and a patient.

Aiming at the problems, a bone nail fixing hole aiming guide device which is special in structure, convenient to use and special for guiding and positioning an intramedullary nail is needed to be designed

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, the present invention is directed to a bone nail fixing hole aiming guide device with simple structure and capable of realizing rapid positioning of an intramedullary nail.

In order to realize the above-mentioned purpose and other relevant purposes, the utility model provides a bone nail fixed orifices aims guiding device, it includes a stand pipe, be equipped with several optic fibre in the stand pipe, the one end of stand pipe is equipped with the connector, still be equipped with a reflection of light lens in the stand pipe, reflection of light lens sets up and is keeping away from the one end of connector, optic fibre with reflection of light lens position is relative, be equipped with a light trap on the lateral wall of stand pipe, reflection of light lens be used for with the light that optic fibre jetted out reflects the follow jet out in the light trap.

Preferably, the connector adopts a card seat interface structure or a thread interface structure.

Preferably, the guide tube is bent in a certain arc.

Preferably, the guide pipe is provided with a size mark.

Preferably, the light hole is arranged at a certain distance from the front end of the guide tube.

Preferably, the guide tube has a diameter of 3mm and a length of 500 mm.

As described above, the bone screw fixing hole aiming guide device has the following beneficial effects: this guiding device is aimed to bone nail fixed orifices passes through on optic fibre shines reflective lens when using, reflective lens focuses on light, the reflection, send from the light trap, like this when the stand pipe inserts the bone cavity along with the intramedullary nail, only need to remove the stand pipe and make the locking hole position on the light trap intramedullary nail correspond, the light that sends through the light trap will outwards be passed through the locking hole and go out like this, because light can send in the fixed orifices of bone nail from, pierce through skeleton and tissue, people's eye will see the light that this block of tissue sent, cut and will see a facula on the skeleton after organizing, at this moment, the doctor just can drill the nailing in facula department, realize the accurate positioning of bone nail fixed orifices, adopt this kind of device still need not use X-ray simultaneously, can avoid causing the loss to the human body.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.

Element number description: 1. a connector; 2. a guide tube; 3. a light reflecting lens; 4. and (7) a light hole.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1 and 2. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

Example 1

As shown in fig. 1, the utility model provides a bone nail fixed orifices aims guiding device, it includes a

stand pipe

2, and 2 insides of stand pipe are packaged with optic fibre, and a root thin fiber plays the effect of transmission light to can bend free radian and angle, can realize the transmission of light from the one end of stand pipe 2 to the other end through optic fibre. The connector 1 is arranged at one end of the guide pipe 2, the connector 1 is used for being connected with an external light source, as shown in fig. 1, the connector 1 adopts a clamping seat interface structure, the clamping seat interface can be directly matched with a clamping groove of an output port of the light guide beam at the other end for use, and the purpose is that the optical fiber head of the light guide beam is aligned to the optical fiber head in the guide device, so that the optical fiber head and the optical fiber head are closely matched to improve the light transmission rate. Still be equipped with a lens 3 in the stand pipe 2, lens 3 sets up the one end of keeping away from the connector, is equipped with a light trap 4 on the lateral wall of stand pipe, and lens 3 is arranged in reflecting the light that the optic fibre jetted out and jets out from the light trap. The reflection lens 3 functions as two: firstly, the light emitted by the optical fiber in the conduit is reflected by 90 degrees, and secondly, the light is focused at the front 3mm position through the convergent lens. After the converged light penetrates through the bone, light spots with the size of the bone nail fixing holes are left on the bone, and a doctor punches holes at the light spots to fix the bone nails.

The material of the guide tube 2 is medical metal or medical plastic, the guide tube 2 can be freely bent to have a certain radian and well match the radian trend of the bone nail, and the front end of the guide tube 2 is processed by an arc to realize threading and guiding in the bone nail. Still the sign has the scale interval to make things convenient for the doctor to correspond different length bone nails on 2 walls of stand pipe, learns through the scale interval that to insert the inside length of bone nail and conveniently fixes a position the use. The guide tube 2 has a diameter of about 3mm and a length of about 500 mm. In this embodiment the light-transmissive holes in the guide tube 2 are arranged about 20mm from the front end of the guide tube, which fits exactly in the fixation holes of the bone screws.

Example 2

Fig. 2 shows another embodiment of the present invention, which is different from embodiment 1 in that the connector 1 adopts a screw interface structure, and is used in cooperation with the interface of the existing light guide bundle by screwing the screw interface and combining two light guide bundle heads at the center together, so that light is transmitted from the light guide bundle to the optical fiber in the guide device. The light hole 4 is directly arranged at the front end part of the guide tube 2, so that the light hole 4 and the intramedullary nail fixing hole are overlapped by adjusting the position of the guide tube 2 in the intramedullary nail when in use.

This guiding device is aimed to bone nail fixed orifices passes through on optic fibre shines reflective lens when using, reflective lens focuses on light, the reflection, send from the light trap, like this when the stand pipe inserts the bone cavity along with the intramedullary nail, only need to remove the stand pipe and make the locking hole position on the light trap intramedullary nail correspond, the light that sends through the light trap will outwards be passed through the locking hole and go out like this, because light can send in the fixed orifices of bone nail from, pierce through skeleton and tissue, people's eye will see the light that this block of tissue sent, cut and will see a facula on the skeleton after organizing, at this moment, the doctor just can drill the nailing in facula department, realize the accurate positioning of bone nail fixed orifices, adopt this kind of device still need not use X-ray simultaneously, can avoid causing the loss to the human body. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a bone nail fixed orifices aims guiding device which characterized in that: it includes a stand pipe, be equipped with several optic fibre in the stand pipe, the one end of stand pipe is equipped with the connector, still be equipped with a reflection of light lens in the stand pipe, reflection of light lens sets up and is keeping away from the one end of connector, optic fibre with reflection of light lens position is relative, be equipped with a light trap on the lateral wall of stand pipe, reflection of light lens be used for with the light that optic fibre jetted out reflects and follows jet out in the light trap.

2. The bone nail fixation hole aiming guide as claimed in claim 1, wherein: the connector adopts a card seat interface structure or a thread interface structure.

3. The bone nail fixation hole aiming guide as claimed in claim 1, wherein: the guide tube is bent to a certain radian.

4. The bone nail fixation hole aiming guide as claimed in claim 1, wherein: and the guide pipe is provided with a size mark.

5. The bone nail fixation hole aiming guide as claimed in claim 1, wherein: the light hole is arranged at a certain distance from the front end of the guide tube.

6. The bone nail fixation hole aiming guide as claimed in claim 1, wherein: the guide tube has a diameter of 3mm and a length of 500 mm.