CN102889537B - Lateral light-emitting device capable of being jointed with medullary cavity guide needle - Google Patents

Abstract

The invention discloses a lateral light-emitting device that can be coupled with a medullary cavity guide pin. The device generally includes a sealed main body, a front-end protection device provided at the front end of the main body, and a joint device provided at the end of the main body. A lighting device, a power supply device, a light scattering device, and a light source are also provided in the main body. Intensity modulation device and a light-transmitting window. In the embodiment of the present invention, the lateral light-emitting device can be movably connected to different medullary cavity guide pins, and the power supply device is used to supply power to the lighting device, so that the light source generated by the lighting device is scattered by the light scattering device. Or after further appropriate intensity modulation, it can emit light laterally through the light-transmitting window of the main body; thus, during intramedullary steel nail surgery, the device of the present invention can emit light in the affected part, enabling self-external observation of the surgical site, and Accurately position steel nails.

Description

Side light emitting device that can be engaged with intramedullary guide wire

technical field

The invention relates to the design and technical field of a medullary cavity guide pin, and in particular relates to a lateral light-emitting device that can be engaged with a medullary cavity guide pin. the

Background technique

In the past two decades, most lower limb fractures and some upper limb fractures have been treated clinically with so-called intramedullary nail fixation. The insertion of the steel nail needs to be guided by a medullary cavity guide wire, and then the sleeve-shaped steel nail is placed outside the medullary cavity guide wire, and slowly and carefully inserted into the bone marrow cavity along its guide. the

However, in the operation of fixing the two ends of the steel nail with screws, the more difficult part of this method is to find the positions of the fixing holes at the two ends of the steel nail in the affected part, so as to drill holes on the bone to fix the steel nail. Since the steel nail has been implanted in the bone marrow cavity at this time, and is covered by bones and muscles, the orthopedic surgeon cannot correctly know the exact position of the fixation hole visually. the

In the prior art, there is US No. 5,417,688 invention about the way to solve the above problems. This patent discloses a medical internal lighting device. The hole is opened, and the remote unit of the self-guide pin is connected with a wire to provide light to the lamp. Based on this, the guide pin of the medullary canal is inserted into the affected part to make it glow in the body, so that the operator can identify the suitable fixing hole position of the steel nail. the

In addition, the invention patent No. 485036 of the Republic of China provides a medullary cavity guide pin with an illumination device, which is characterized in that a flexible guide pin is combined with an illumination device at its front end, and the visible light or near-infrared light emitted by the illumination device can Penetrate the animal body tissue, so when performing the fixed intramedullary nail fixation method, the medullary cavity guide wire is left in the steel nail in the medullary cavity, and the light emitted through the nail fixing hole is observed from the outside, so that it is convenient The nail fixing hole can be positioned quickly and easily. the

Although the above-mentioned two invention structures use internal lighting to locate the surgical steps, which reduces the risk of additional injuries and increases the convenience of surgery, but because the light source is designed at the front end of the guide pin, the light mainly travels in the longitudinal direction, which cannot Effective lateral divergence results in a rather weak light source observed by the operator. It is often necessary to increase the power of the light source, resulting in high power consumption or high temperature due to high light intensity, which will cause damage to the body. the

Moreover, although the above-mentioned structure of the prior art of the U.S. Patent Office digs a hole laterally to allow the light source to emit from the side end, this design instead makes the position of the light source form an open structure. During the operation, it is easy for the illuminating device to be infiltrated by body fluids, which may cause the device to fail, or even contaminate the affected part. the

And because the lighting device and the guide pin of the medullary cavity are fixed and integrally formed, it needs to be individually designed and manufactured for different brands of the guide pin of the medullary cavity, and the cost is relatively high. The entire set of devices is discarded together, resulting in a waste of resources; moreover, because the lighting device is located at the front end of the medullary canal guide wire, during the operation, the medullary canal guide wire must go deep into the bone marrow cavity, and the bulb has no protection during the operation. device, it is easy to damage the bulb in the medullary cavity due to collision with hard bone tissue. the

Contents of the invention

The technical problem to be solved by the present invention is to provide a lateral light-emitting device that can be connected to the medullary cavity, which can emit light laterally, and can adjust the light intensity, which is convenient for positioning the fixing hole outside the body, and can effectively prevent the guide needle from entering the medullary cavity. Body fluid seeps into the guide wire as it penetrates deep into the medullary cavity. the

Positioning the fixation hole by emitting light from the illuminating device is an efficient and safe way to perform fixed intramedullary steel nail fixation with the guide wire of the medullary cavity. In order to solve the lack of the above-mentioned prior art structure, and also to improve the luminous efficiency, convenience and practicability of the light-emitting device, the inventor developed a light-emitting device that can connect various types of medullary cavity guide needles and has a lateral light-emitting function. lighting fixtures. the

In order to achieve the aforementioned purpose, the present invention provides a lateral light-emitting device that can be engaged with a medullary cavity guide wire. The device is an independent closed space, and the overall airtight design prevents the liquid from leaking into the main body when the outside of the lighting device contacts the liquid. the

Another object of the present invention is to provide a side light-emitting device that can be engaged with a guide wire in the medullary cavity, and a protective device is provided at its front end, which can be used to protect the main body from colliding with hard bone tissue during surgery. Cause the destruction of the internal structure and function of the main body. the

Another object of the present invention is to provide a lateral light-emitting device that can be engaged with a guide wire in the medullary cavity. The entire device is designed as an independent body with an engaging device so that the lateral light-emitting device can be closely connected to any guide wire in the medullary cavity. join. the

Another object of the present invention is to provide a lateral light-emitting device that can be engaged with a guide wire in the medullary cavity. A light scattering device is provided in the main body, so that when the light of the present invention hits the light scattering device, it will be scattered The curved surface structure and reflective properties of the surface of the device make the light diffuse and increase the brightness, and emit to the side closed window. the

Another object of the present invention is to provide a lateral light-emitting device that can be engaged with a guide pin in the medullary cavity. The main body is also provided with a light source intensity modulating device, which can adjust the light of the present invention to an appropriate intensity and reduce light scattering. effect, in order to facilitate the execution of fixing hole positioning. the

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

A lateral light-emitting device engaged with a medullary cavity guide wire, comprising:

A main body, the inside of which is a closed accommodation space;

A front-end protection structure arranged at the front end of the main body;

A light scattering device, located in the accommodating space, and installed behind the front protection device;

A lighting device, arranged at a predetermined position in the main body accommodation space, and corresponding to the light scattering device, so that the light source generated by the lighting device is projected towards the light scattering device and then scattered;

A power supply device, installed at one end of the accommodating space of the main body, for providing power to the lighting device;

At least one light-transmitting window is arranged on the side of the main body, and is used to make the light source in the accommodating space be scattered and emitted outward through the light-transmitting window;

An engaging device is arranged at the end of the main body, and is used for engaging the lateral light-emitting device with the medullary cavity guide wire. The embodiment of the present invention provides a lateral light-emitting device that can be engaged with a guide wire in the medullary cavity. It mainly makes the entire main body a sealed structure to prevent body fluid from penetrating into the medullary cavity, causing pollution and damage. The light is made to adjust the intensity of the light source through the light source intensity modulating device, and then emits light laterally through the light scattering device, so as to facilitate the positioning of the fixing hole outside the body. the

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort. the

Fig. 1 is the overall structural diagram of the lateral light-emitting device engaged with the medullary cavity guide wire in the embodiment of the present invention;

Fig. 2 is a schematic diagram of the side lighting process of the side lighting device engaged with the medullary cavity guide wire in the embodiment of the present invention;

Fig. 3 is a schematic diagram of the use of the fixed intramedullary steel nailing method for tibial fractures in which the lateral light-emitting device engaged with the guide wire of the medullary cavity is engaged with the guide wire of the medullary cavity in an embodiment of the present invention. the

Explanation of reference signs:

1. Main body 10. Front protection structure 20. Lighting device 30. Battery power supply device 40. Light scattering device 50. Light-transmitting window 60. Engagement device 7. Medullary cavity guide pin 8. Intramedullary cavity steel nail 91. Remote fixing hole 92 , Proximal fixing hole

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. the

Hereinafter, examples of the method of the present invention will be specifically described. the

As shown in Fig. 1, a lateral light-emitting device engaged with a medullary canal guide wire in an embodiment of the present invention includes: a main body 1, the interior of which is designed as a hermetic accommodating space as a whole, so that the present invention When the side light-emitting device is in contact with liquid, the liquid will not leak into the interior of the main body 1; and the exterior of the main body 1 is made of a material with temperature insulation function and biocompatibility. the

A front end protection structure 10 is provided at the front end of the main body 1, which can be used to protect the main body 1 from being damaged due to collision with hard bone tissue during operation. In a specific embodiment of the present invention, the front-end protection structure 10 can be a pyramid-shaped body made of hard material, which is used to protect the main body from being pushed smoothly. In addition, the front-end protection structure 10 can also be a kind of elastic protection function. It can be combined with the front end of the main body 1 in any way, or it can be integrated with the main body 1 to form an integral structure. the

An engaging device 60 is provided at the end of the main body 1, which is arranged at the end of the main body, and is used for engaging the side light-emitting device with the medullary cavity guide wire, that is, for the main body 1 and the medullary cavity guide wire 7 join. In a specific embodiment of the present invention, the engaging device is provided with a sleeve joint, which is used to tightly engage the engaging device with the guide wire of the medullary cavity by using the friction force generated by the scarfing. The main body 1 is made of shrinkable material, and its elastic shrinkage property can be used to make the main body 1 tightly bonded to the medullary cavity guide pin 7, and can be separated from the engaged medullary cavity guide pin 7 when a certain external force is applied. Alternatively, an outer ring (not shown) with a fixed thread can also be placed on the outer ring of the engaging device 60, and the metal outer ring is provided with screw teeth or at least one fixing screw for fixing the engaging device and When the medullary cavity guide wire is engaged, the outer ring is tightened. When the engaging device 60 is engaged with the medullary cavity guide wire 7 , the outer ring is screwed tightly to force the engaging device 60 to be more tightly engaged with the medullary cavity guide wire 7 . the

The inside of the main body 1 is equipped with: a light scattering device 40, the light scattering device 40 is located in the airtight accommodation space of the main body 1, and is installed at the rear position of the front end protection device, which is designed as an arc convex mirror. In a specific embodiment of the present invention, the surface of the light scattering device 40 can be a glass, plastic sheet or acrylic plate coated with a metal oxide film or other light-reflecting film. In a specific embodiment of the present invention, the reflective surface of the light scattering device 40 is at an inclined angle to scatter straight-going light into the light-transmitting window. the

An illuminating device 20 is arranged in the airtight accommodation space of the main body 1 and corresponds to the predetermined position of the light scattering device 40, so that the light source generated by the illuminating device is projected onto the light scattering device and then scattered through it. A power supply device 30 is installed at one end of the airtight accommodating space of the main body 1 for providing power to the lighting device. The power supply device 30 can be a micro-battery power supply system, so that power can be supplied to the lighting device 20, and a light source intensity modulation device can be arranged between the lighting device 20 and the power supply device 30. There is a variable resistor, which can be used to adjust the current entering the lighting device 20 by changing the resistance, so as to adjust the light source intensity of the lighting device 20 . In the embodiment of the present invention, after the lighting device 20 is started by the power supply from the power supply device 30, after the light source intensity of the lighting device 20 is adjusted by the light source intensity modulating device, it can emit straight-line light with an appropriate irradiation intensity, and projected onto the light scattering device 40 . the

At least one light-transmitting window 50. In the embodiment of the present invention, the window 50 can be made of glass, acrylic or plastic transparent sheet, so that the main body 1 forms a window effect of a closed and transparent block, and is arranged on the The side of the main body 1 is used to make the light source in the accommodating space diffused and emitted outward through the light-transmitting window. When the light source in the accommodating space is scattered and turned by the light scattering device 40, The transparent window 50 projects outward. the

In addition, the surface of the light-transmitting window 50 in the embodiment of the present invention can be set as a reflective mirror surface with a prism angle, so as to strengthen and concentrate the light source and emit it outward. the

As shown in FIG. 2 , in the embodiment of the present invention, the lateral lighting process of a side lighting device engaged with the medullary canal guide wire is as follows: the lighting device 20 uses a light emitting diode as a light source, uses a battery power supply device 30 to supply power, and passes through After the light source intensity modulating device adjusts the intensity of the light from the lighting device 20, the generated light is emitted in a straight line. The light is scattered by the reflecting mirror surface, and the light is scattered and then enters the light-transmitting window 50 composed of prisms. the

Through the actual test of the above embodiments, it is proved that the use of the side light emitting device of the present invention can change the direction of light emission, and can control the light energy emitted from the side to concentrate and emit with clear light, which is easy to locate and observe outside the body. the

As shown in Figure 3, using the combination of the lateral light-emitting device body 1 and the medullary cavity guide pin 7 in the embodiment of the present invention, the detailed fixing hole positioning steps of the fixed intramedullary steel nail fixation method for tibial fractures are as follows:

Step (1): Fix the lateral light-emitting device in the embodiment of the present invention to one end of a flexible medullary cavity guide wire 7 by using its engaging device 60. The engaging device 60 can be a soft socket, When the guide pin 7 is engaged, its elastic retraction property and the inner side design can increase the tooth structure of the friction force, so that the body 1 can be tightly engaged with the medullary cavity guide pin without loosening. the

Step (2): When performing the positioning of the fixing holes on the steel nail, the positioning starts from the far two remote fixing holes (distal holes) 91 . Withdraw the guide wire in the medullary cavity backward, so that the lateral light-emitting device 10 of the present invention is located at the remote fixing hole 91 of the steel nail (estimating from the length of the steel nail). Start the battery power supply device 30 of the side light emitting device of the present invention, supply power to the lighting device 20 of the side light emitting device of the present invention, and then adjust the intensity of the light from the lighting device 20 through the light source intensity modulation device, the lighting device 20 Emit straight-going light with appropriate intensity. The light goes straight and collides with the light scattering device 40 for scattering, and the scattered light is emitted laterally through the light-transmitting window 50 . Next, move slowly back and forth the medullary canal guide wire engaged with the lateral light-emitting device in the embodiment of the present invention, until the light is seen coming out from the fixed hole to be positioned. Continue to move in the direction of the previous steps while observing the light coming through. If the light intensity gradually increases, continue to move in this direction; otherwise, move in the opposite direction. In this way, the rough position of the fixing hole to be positioned can be determined. The light source is reciprocated in finer increments around the determined approximate position until the position of the maximum brightness point can be determined. Further change the angle of observation until a symmetrical and complete circular bright spot is observed, and the center of the circle is the center point of the fixing hole of the steel nail. Mark the location of this center point. the

Step (3): Pull back the medullary cavity guide wire 7 slightly, so that the light source of the lateral light emitting device 10 in the embodiment of the present invention moves away from the center point marked in the previous step. Cut the skin at the marked center point until the inner bone is seen, drill holes in the bone with an awl and lock in the fixing screws. the

Step (4): Steps (2) to (3) are repeated to locate the two nearer distal fixing holes 91 and the two proximal holes 92 and lock the fixing screws. the

Through the actual inspection of the above embodiments of the present invention, it is proved that when the intramedullary cavity guide wire joined by the lateral light-emitting device of the present invention is used for fixed intramedullary steel nail fixation, the lighting effect is good so that the fixing holes on the steel nails are clearly visible , and there is no damage to the bulb during the operation, and the whole side light emitting device has no body fluid leakage inside after the operation, which greatly shortens the operation time spent on positioning, and this lighting device will not cause damage during the operation. The risk of emergencies allows the operation to be carried out smoothly and efficiently, which benefits both doctors and patients. the

Through the description of the above embodiments, those skilled in the art can clearly understand that the present invention can be realized by means of software plus necessary general-purpose hardware, and of course also by hardware, but in many cases the former is a better embodiment . Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product is stored in a readable storage medium, such as a floppy disk of a computer , a hard disk or an optical disk, etc., including several instructions for enabling a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments of the present invention. the

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims. the

Claims (12)

1. the side light-emitting device engaging with pulp cavity guide pin, is characterized in that, comprising:

One main body, inside is the accommodation space of a sealing;

One is arranged at a front-end protection structure of described body front end;

One light scatter device, within being positioned at described accommodation space, and is installed on the rear position of described front end protective device;

One illuminator, is arranged at the precalculated position in main body accommodation space, and corresponding to described light scatter device, and the light source that described illuminator is produced is invested described light scatter device and through this and then produce scattering;

One electric supply installation, is installed on one end of described main body accommodation space, for power supply being provided to described illuminator;

At least one optical transmission window, is arranged on described main body side, for light source in described accommodation space is scattered by described optical transmission window place, outwards penetrates;

One engagement device, is arranged at the end of described main body, for described side light-emitting device is engaged with pulp cavity guide pin.

2. the side light-emitting device engaging with pulp cavity guide pin according to claim 1, is characterized in that, described main body is with transparent, thermal insulation and to have the material of bio-compatibility made.

3. the side light-emitting device engaging with pulp cavity guide pin according to claim 1, is characterized in that, described optical transmission window is the surperficial inverted cone with reflective surface.

4. the side light-emitting device engaging with pulp cavity guide pin according to claim 1, is characterized in that, the described optical transmission window plastics that for the benefit of material of light pass-through forms.

5. the side light-emitting device engaging with pulp cavity guide pin according to claim 1, is characterized in that, the surface of described light scatter device is the reflecting surface that a circular arc is protruded.

6. the side light-emitting device engaging with pulp cavity guide pin according to claim 5, is characterized in that, the surface of described light scatter device is one to plate glass, plastic sheet or the acrylic plate of metal oxide film.

7. the side light-emitting device engaging with pulp cavity guide pin according to claim 5, is characterized in that, the reflecting surface of described light scatter device is the angle of inclination of light scattering to optical transmission window that can make to keep straight on.

8. the side light-emitting device engaging with pulp cavity guide pin according to claim 1, installs a minicell, for the described illuminator supply of electrical energy to described side light-emitting device in described electric supply installation.

9. the side light-emitting device engaging with pulp cavity guide pin according to claim 1, it is characterized in that, also comprise: an intensity of light source changing device, is installed between described illuminator and described electric supply installation, for adjusting the intensity from the light source of described illuminator.

10. the side light-emitting device engaging with pulp cavity guide pin according to claim 9, is characterized in that, wherein said intensity of light source changing device comprises: a variable resistance, and for adjusting the magnitude of current that enters described illuminator.

11. side light-emitting devices that engage with pulp cavity guide pin according to claim 1, is characterized in that, described engagement device is provided with a bell and spigot joint, for utilizing the frictional force that interlocking produces to make described engagement device and pulp cavity guide pin fluid-tight engagement.

12. side light-emitting devices that engage with pulp cavity guide pin according to claim 1, it is characterized in that, wherein said engagement device is provided with a metal outer shroud, its metal outer shroud be provided with thread or have at least one fixing with screw, for described outer shroud being screwed when engaging pulp cavity guide pin at fixed engagement device.