KR100874516B1 - Stand of surgical lighting device - Google Patents

Abstract

A stand of a surgical lighting device is provided to prevent a sudden movement of a lifting part and perform a height control with a low power by connecting a balance weight. A stand of a surgical lighting device is connected to a head with a lamp for irradiating the light to a surgical part and includes a plump extension part(1) which is extended upward and downward. The plump extension part includes a main frame(11), an extension frame(12), a balance weight, and a cable. The extension frame is supported in the main frame to move upward and downward by being connected to the head. The balance weight(13) offsets the weight of the lifting part with the extension frame. The cable is connected to the main frame, the extension frame, and the balance frame so that the moving direction of the extension frame and the moving direction of the balance weight are opposed.

Description

Stand of surgical lighting device {STAND OF SURGICAL LIGHTING DEVICE}

The present invention relates to a stand of a surgical lighting device, and more particularly by connecting a balance weight that can offset the weight to the lifting portion in the height direction of the stand to adjust the height of the head connected to the top of the stand Operational lighting is very convenient because it can be operated with a small force and prevents the sudden movement of the lifted part, as well as adjusting the weight of the lifted weight so that the lifted part stops without falling by its own weight at the stopped position. Relates to a stand of the device.

Conventionally, a surgical lighting apparatus for illuminating a subject during surgery has been required to be able to illuminate the procedure without making a shadow, and to easily adjust the lighting conditions.

In particular, it is required to be able to easily adjust the distance between the illumination and the procedure by the operator's doctor during surgery. Therefore, the surgical lighting device is configured to be freely adjusted the height and position of the head is connected to the head lamp is installed. Normally, the height of the head is adjusted by lifting a portion of the stand to which the head is connected in the height direction.

By the way, in the case of the conventional surgical lighting device by moving the lifting portion of the stand in the height direction to adjust the height of the head and then the lifting portion of the stand to stop the head at that position using a stop pin or a stop bolt It is structure to fix.

Therefore, in the case of the conventional surgical lighting device, the number of times the user performing the operation by holding the lighting device by hand to adjust and fix the height of the lighting device is increased, which not only reduces the concentration of the user's surgery However, as the number of times you touch the lighting device with your hand increases the likelihood of infection.

In addition, the conventional surgical lighting device requires a user to apply a large force in order to move the lifting portion of the stand upwards due to the weight of the head and the weight of the stand itself, on the contrary to move the lifting portion of the stand downward In this case, the lifting portion is suddenly moved downward by the weight.

The present invention was conceived by recognizing the above point, an object of the present invention is to balance the weight that can offset the weight of the lifting portion in the height direction of the stand to adjust the height of the head connected to the top of the stand By connecting, it is possible to provide a stand of a surgical lighting device that can be operated with a small force and can prevent the sudden movement of the lifting portion.

In addition, it is an object of the present invention is configured to stop at the position where the lifted portion is stopped without falling by its own weight in the stopped state by adjusting the weight of the balance weight in consideration of the weight and frictional force of the elevated portion of the stand It is to provide a stand of this very convenient surgical lighting device.

In order to achieve the above object, the stand of the surgical lighting device according to the present invention, in the stand of the surgical lighting device is connected to the head is installed a lamp for irradiating light to the surgical site to illuminate the surgical site The vertical stretching unit is provided with a length extending in the vertical direction, wherein the vertical stretching unit, the main frame, the stretching frame is connected to the head and is supported to be moved in the vertical direction to the main frame, and the lifting frame is raised and lowered integrally Balance weights for offsetting the weight of the part, and the main frame, the stretching frame and the offset so that the moving direction of the stretching frame and the direction of movement of the balance weight to offset the weight of the lifting portion integrally with the stretching frame and Characterized in that configured to include a cable installed to be connected to the balance weight.

In addition, the stand of the surgical lighting apparatus according to the present invention, the weight of the lifting portion integrally with the stretching frame, the weight of the balance weight, the static friction force acting on any one or both of the stretching frame and the balance weight is It is characterized by achieving a balance of forces.

In addition, the stand of the surgical lighting apparatus according to the present invention, the cable, the number of strands connected to the balance weight so that the moving distance of the balance weight is one half of the moving distance of the stretching frame to the stretching frame It is characterized by being twice the number of strands connected.

In addition, the stand of the surgical lighting apparatus according to the present invention, the cable, both ends are connected to the position of the left and right symmetry of the stretching frame, each strand is extended upwards, each of the strands extending upward from the stretching frame The strands are downwardly shifted so as to span the first support rollers provided at the left and right symmetric positions of the main frame, and each strand extends downward, and each of the strands extending downward from the first support roller provided in the main frame is The direction is changed upwards across the connecting rollers provided on both sides of the balance weight, and each strand extends upward, and a central portion of each strand extending upward from the connecting roller provided on the balance weight is provided on the main frame. It is characterized in that it is installed over the second supporting roller.

In addition, the stand of the surgical lighting apparatus according to the present invention, the upper portion of the stretching frame is provided with a horizontal stretching portion, the horizontal stretching portion is connected to the main arm one end is connected to the upper end of the stretching frame, the head is connected to one end And a stretched arm supported to be moved in the horizontal direction on the main arm.

The stand of the surgical lighting device according to the present invention by the configuration as described above, to connect the balance weight to offset the weight to the lifting portion in the height direction of the stand to adjust the height of the head connected to the top of the stand This can be operated with a small force and has the advantage of preventing sudden movement of the lifted portion.

In addition, the stand of the surgical lighting apparatus according to the present invention, by adjusting the weight of the balance weight in consideration of the weight and frictional force of the elevating portion of the stand is stopped without falling by its own weight in the state where the elevating portion is stopped It is configured to stop in position and has the advantage of being very convenient to use.

Hereinafter, with reference to the embodiment shown in the drawings will be described in more detail the stand of the surgical lighting apparatus according to the present invention.

1 is a side view and a plan view of a surgical lighting apparatus equipped with a stand of a surgical lighting apparatus according to an embodiment of the present invention, Figure 2 is a surgical lighting apparatus according to an embodiment of the present invention 3 is an exploded perspective view illustrating a surgical lighting apparatus provided with a stand, and FIG. 3 is a perspective view illustrating a stand of a surgical lighting apparatus according to an exemplary embodiment of the present invention, and FIGS. 4A and 4B are directions A of FIG. 3, respectively. And a side view in the B direction, FIGS. 5A and 5B are views conceptually showing the relationship between the weight of the stretching frame, the weight of the balance weight, and the static friction force in the stand of the surgical lighting apparatus according to the embodiment of the present invention. 6A to 6D are conceptual views illustrating various examples in which cables are connected to a stand of a surgical lighting apparatus according to an embodiment of the present invention.

The stand (1, 2) of the surgical lighting apparatus according to an embodiment of the present invention supports the head 4 for illuminating and irradiating light on the surgical site and for adjusting the position and height of the head (4) will be. Referring to the drawings, the surgical lighting apparatus used for the stand (1, 2) of the surgical lighting apparatus according to an embodiment of the present invention is provided with a lower case (41a) and an upper case (41b) covering the upper portion The head 4 provided with several lamps 42 for irradiating light in the case 41 is provided. The head 4 is connected to the stands 1, 2 by a head connecting frame 3. Referring to the drawings, the stand (1, 2) is a base that is placed on the bottom, the vertical extension portion (1), the lower end is connected to the upper portion of the base and is erected vertically and the length is stretched in the vertical direction, and the vertical extension It is connected to the upper end of the bride (1) extends in the horizontal direction is composed of a horizontal stretching portion (2) extending the length thereof. The head connecting frame 3 is a Y-shaped lower frame 33 in which both sides of the circular case 41 of the head 4 is hinged so as to adjust the direction of light irradiated from the head 4. And, one end is connected to the central portion of the lower frame 32 is bent in the upper and horizontal direction is composed of the upper frame 31 connected to the tip of the horizontal stretching (2). The head 1 is hinged to the lower frame 32 so as to adjust the direction of light irradiation is rotated in the left and right directions.

The present invention relates to the structure of the stand (1,2) with the balance weight 13 to easily adjust the height and position of the head (4) connected to the stand (1,2).

Referring to the drawings, the stand (1, 2) of the surgical lighting apparatus according to an embodiment of the present invention is composed of a vertical stretching unit 1 and a horizontal stretching unit (2).

The vertical stretching portion 1 is a length that extends in the vertical direction to adjust the height of the head 4, the main frame 11, the stretching frame 12, the balance weight 13, the cable 14 It is configured to include).

The main frame 11 is formed of a columnar member having a rectangular cross section, and is vertically fixed to the upper portion of the base to be placed on the floor so that the stretching frame 12 is supported to be lifted up and down. A fixing bracket 111 for fixing the main frame 11 to the upper surface of the base is coupled to the main frame 11, and a support roller 114, 114 ′ for supporting the cable 14 therein at the top. , 115 and 115 'and mounting portions 112 and 112' on which the guide rollers 113 are mounted are combined. The mounting parts 112 and 112 'are symmetrically divided in left and right directions and are coupled to each other and coupled to an upper end of the main frame 11. The stretching frame 12 is inserted into the main frame 11 to reciprocate up and down. In order to guide this, a pair of guide rollers 113 and 113 'face each other in the front-rear direction to guide the same. Is installed. In addition, a pair of first supports connected to the stretching bracket 12 at a position facing in the left and right directions of the mounting portions 112 and 112 ′ to cover the strands 14 extending upwards to change the direction downwards. The rollers 114 and 114 'are installed to face each other. In addition, a pair of second support rollers 115 and 115 'are installed in the mounting portions 112 and 112' in parallel to each other so that the center portion of the cable 14 extends in the rear position.

The stretching frame 12 is a columnar member having a rectangular cross section and is inserted into the main frame 11 and supported by the main frame 11 to be elevated in the vertical direction. The rolling roller 122 which is inserted into the main frame 11 and contacts the inner surface of the main frame 11 and rolls on the lower end of the stretching frame 12 is installed at a position facing each other. As described above, the drawing frame 12 having the rolling roller 122 at the lower end thereof is inserted into the main frame 11 so that the outer surface is in contact with the guide roller 113 provided at the upper end of the main frame 11. And rolling roller 122 provided at the lower end is smoothly moved up and down while rolling the inner surface of the main frame (11). One end of the main arm 21 of the horizontal stretching unit 2 is connected to the upper end of the stretching frame 12, and the upper end of the stretching frame 12 and one end of the main arm 21 for connection thereof. Coupling parts 121 and 121 'are coupled. The coupling parts 121 and 121 'are divided into left and right directions and are coupled to each other and coupled to an upper end of the stretching frame 12 and one end of the main arm 21. On the other hand, the stretching frame 12 to offset the weight of the portion to be moved up and down together with the stretching frame 12, that is, the weight of the horizontal stretching portion 2, the head connecting frame 3 and the head (4) Both ends of the cable 14 connected to the balance weight 13 are connected. In order to connect the both ends of the cable 14, the lower end of the stretching frame 12 has a connector (123, 123 ') for connecting and fixing each of both ends of the cable (14) on both sides symmetrically in the horizontal direction Each attached.

The balance weight 13 is for offsetting the weight of the parts 12, 2, 3, 4 which are connected to the stretching frame 12 through a cable 14 and are elevated with the stretching frame 12 integrally. . Referring to the drawings, the balance weight 13 is inserted into the main frame 11 to move up and down in the direction opposite to the moving direction of the stretching frame 12 at the lower portion of the stretching frame 12. do. The balance weight 13 is generally lighter than the weight of the portions 12, 2, 3, and 4 that are raised and lowered integrally with the stretching frame 12, but may have a heavy weight. However, according to the present invention, the stretching frame 12 is kept in a stopped state before applying an external force (for example, a user pressing or lifting the stretching frame) other than weight to the stretching frame 12. The weight of the balance weight 13 is selected. 5A and 5B are the weight (W) of the stretching frame 12, the weight (W ') and the static friction force (F) of the stretching frame 12 in the stand of the surgical lighting apparatus according to an embodiment of the present invention Is a diagram conceptually illustrating the relationship between. In order to maintain the stretched frame 12 in a stopped state, the weight W of the portions 12, 2, 3, and 4 that are integrally elevated with the stretched frame 12, and the weight of the balance weight 13 W '), the static frictional force (F) applied to any one or both of the stretching frame 12 and the balance weight 13 should be equal to zero (balance of force). As described above, when the stretching frame 12 is stopped, the magnitude of the static friction force F applied to any one or both of the stretching frame 12 and the balance weight 13 is integral with the stretching frame 12. The difference between the weight (W) of the portions 12, 2, 3, and 4, and the weight (W ') of the balance weight 13 (ie, | F | = | W-W' |) same. In this case, the weight of the balance weight 13 may be larger or smaller than the weight of the portions 12, 2, 3, and 4 that are raised and lowered integrally with the stretching frame 12. However, the size of the difference between the weight (W) of the portion (12, 2, 3, 4) and the weight (W ') of the balance weight 13, which is raised and lowered integrally with the stretching frame (12) is the stretching frame (12) ) And balance weight (13) should be less than the maximum static friction. That is, | maximum stop friction | > | W-W '| must be satisfied. Under the above conditions, the stretching frame 12 is maintained in a stopped state, and when an external force is applied upward or downward to the stretching frame 12 while the stretching frame 12 is stopped, as much as the magnitude of the external force. The static frictional force F is increased and the drawing frame 12 starts to move as soon as the static frictional force F reaches the maximum static frictional force. On the other hand, the left and right sides of the balance weight 13 are provided with connecting rollers 131 and 131 'so that the strands of the cable 14 extending downward from the first supporting rollers 114 and 114' are connected to the connecting rollers 131 and 131 '. The direction is upwardly and extends upward to the second support rollers 115 and 115 '.

The cable 14 cancels the weights of the parts 12, 2, 3, and 4 that are integrally elevated with the stretching frame 12, and the movement direction of the stretching frame 12 and the balance weight 13 move. It is installed to be "connected" to the main frame 11, the stretching frame 12 and the balance weight 13 so that the direction is reversed. Here, the "connection" of the cable 14 is a concept including a structure in which the ends thereof are fixedly coupled and "connected", as well as a structure that is supported and "connected" so as to change direction across the roller.

Figure 5a shows a relationship in which the cable 14 is "connected" to the main frame 11, the stretching frame 12 and the balance weight 13 in the stand of the surgical lighting apparatus according to an embodiment of the present invention. . 2, 4a, 4b and 5a, the cable 14 is the end of each strand by the connector 123, 123 'at each of the positions where both ends are symmetrical at the lower end of the stretching frame 12 Each strand extends upwards. As described above, each of the strands extending upwardly from the lower end of the stretching frame 12 on both sides of the stretching frame 12 is provided at each of positions symmetrically disposed in the mounting portions 112 and 112 'of the main frame 11. One direction of the rollers 114, 114 'across each of the direction is turned downward so that each strand extends downward. In addition, each of the strands extending downward from the first support rollers 114 and 114 'provided at the mounting portions 112 and 112' coupled to the upper ends of the main frame 11 on both sides of the stretching frame 12 is the balance weight ( 13, the direction is shifted upwards across the connecting rollers 131, 131 'provided on both sides of the right and the respective strands extend upwards. As described above, a central portion where each strand extending upward from each of the connecting rollers 131 and 131 'provided in the balance weight 13 is provided in the mounting portions 112 and 112' coupled to the upper end of the main frame 11. Installed over a pair of second support rollers 115 and 115 '. As described above, the cable 14 is " connected " at both ends of the stretching frame 12 so that the first support rollers 114 and 114 ', the connecting rollers 131 and 131' and the second support rollers 115 and 115 'are sequentially connected. By being “connected” over, the present invention results in the movement distance of the balance weight 13 being one-half the movement distance of the stretching frame 12. If the moving distance of the stretching frame 12 and the moving distance of the balance weight 13 positioned below the stretching frame 12 are the same, the length of the main frame 11 should be lengthened to be sufficient stretching frame 12. It is possible to secure the moving distance of. This is clear from the case where the cable C is installed in the same manner as the moving distance of the stretching frame S and the moving weight B of the stretching frame S as shown in FIG. 5A. On the contrary, when the cable 14 is connected as shown in FIG. 5A, the moving distance of the balance weight 13 can be reduced to one half of the moving distance of the stretching frame 12, and the stretching frame is as much as that. It is possible to increase the moving distance of (12) or to reduce the length of the main frame (11). Such a relationship can be clearly seen when comparing the installation state of the cable in Figs. 6A to 6D. 6A and 6B, the moving distance of the stretching frame S and the moving distance of the balance weight B are equal to ℓ. On the contrary, in the examples shown in FIGS. 6C and 6D, the moving distance of the stretching frame S is ℓ, whereas the moving distance of the balance weight B is 1/2 ℓ. As described above, the configuration in which the moving distance of the balance weight B is 1/2 of the moving distance of the stretching frame S is such that the number of strands of the cable "connected" to the balance weight B is the stretching frame S. It is configured to double the number of strands "connected". In particular, FIG. 6D is a cable connected relationship as in the example shown in FIG. 5B.

A horizontal stretching portion 2 is connected to the upper end of the stretching frame 12. Referring to the drawings, the horizontal drawing portion 2 is one end is connected to the main arm 21 by the coupling holes 121, 121 'at the upper end of the stretching frame 12, and the head 4 is connected to one end The head connecting frame 13 is connected to the main arm 21 is configured to include an extension arm 22 supported by the main arm 21 to move in a horizontal direction.

The main arm 21 is formed of a columnar member having a rectangular cross section so that one end thereof is connected to the upper end of the stretching frame 12 so that the stretching arm 22 is supported to move in the horizontal direction. The main arm 21 is coupled to the support parts 211 and 211 ′ on which the guide rollers 212 and 213 are mounted at the other end to support the elongate arms 22 therein. The support parts 211 and 211 'are symmetrically divided in left and right directions and are coupled to each other at the other end of the main arm 21 while being coupled to each other. The extension arm 22 is inserted into the main arm 21 and reciprocated in a horizontal direction. In order to guide the guide arm 21, two pairs of guide rollers face each other in the vertical direction and the front and rear directions. 212 and 213 are installed.

The extending arm 22 is a columnar member having a rectangular cross section and is supported by the main arm 21 to be inserted into the main arm 21 and moved in the horizontal direction. One end of the stretching arm 22 is inserted into the main arm 21 and provided with rolling rollers 222 which come into contact with the inner surface of the main arm 21 so as to face each other. As described above, the extension arm 22 having the rolling roller 222 at one end thereof is inserted into the main arm 21 so that the outer surface thereof is guide rollers 212 and 213 provided at the other end of the main arm 21. The rolling roller 222 contacted and supported at one end is smoothly moved in the horizontal direction while rolling the inner surface of the main arm 21. The other end of the extending arm 22 is connected to the upper end of the upper frame 31 of the head connecting frame 3, for the connection to the other end of the extending arm 22 and the upper end of the upper frame 31 Coupling spheres 221 and 221 'are coupled. The coupling spheres 221 and 221 'are divided in left and right directions and are coupled to each other and coupled to the other end of the stretching arm 22 and the upper end of the upper frame 31.

The stand of the surgical lighting device described above and shown in the drawings is only one embodiment for carrying out the present invention, and should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is defined only by the matters set forth in the claims below, and the embodiments improved and changed without departing from the gist of the present invention will be apparent to those skilled in the art. It will be said to belong to the protection scope of the present invention.

1 is a side view showing a surgical lighting apparatus equipped with a stand of the surgical lighting apparatus according to an embodiment of the present invention

Figure 2 is an exploded perspective view showing a surgical lighting device equipped with a stand of the surgical lighting device according to an embodiment of the present invention

Figure 3 is a perspective view showing a stand of the surgical lighting device according to an embodiment of the present invention

4A and 4B are side views in the A and B directions of FIG. 3, respectively.

5a and 5b conceptually illustrates the relationship between the weight of the stretching frame, the weight of the balance weight and the static friction in the stand of the surgical lighting apparatus according to an embodiment of the present invention

6A to 6D conceptually show various examples of connecting cables in a stand of a surgical lighting apparatus according to an embodiment of the present invention.

<Short description of the major reference symbols>

1 Vertical Drawing

     11 main frame

     12 Stretch Frame

     13 Balance weight

     14 cables

2 horizontal drawing

     21 Juaam

     22 extension arms

3 head connection frame

4 head

Claims (5)

In the stand of the surgical lighting device is connected to the head is installed a lamp for irradiating light to the surgical site to illuminate the surgical site, It is provided with a vertical stretching portion is extended in the vertical direction, The vertical drawing unit, the main frame, the drawing frame is connected to the head and is supported to move in the vertical direction, the balance weight for offsetting the weight of the lifting portion integrally with the drawing frame, and the drawing And a cable installed to be connected to the main frame, the stretching frame and the balance weight so as to cancel the weight of the lifting portion integrally with the frame and the moving direction of the stretching frame and the moving direction of the balance weight are reversed. Surgical lighting device stand. The method of claim 1, The weight of the lifting portion integrally with the stretching frame, the weight of the balance weight, the static friction force acting on any one or both of the stretching frame and the balance weight of the surgical lighting device, characterized in that the balance of force stand. The method of claim 2, The cable is a surgical illumination, characterized in that the number of strands connected to the balance weight is twice the number of strands connected to the stretching frame so that the movement distance of the balance weight is one half of the movement distance of the stretching frame. Stand of the device. The method of claim 3, The cable, both ends are connected to the left and right symmetrical position of the stretching frame, each strand extends upwards, Each of the strands extending upward from the stretching frame spans the first supporting roller provided at the left and right symmetrical positions of the main frame so that the strands are turned downward to extend the strands downward. Each of the strands extending downward from the first support roller provided in the main frame is connected to the connecting rollers provided on both sides of the balance weight so that the strands thereof are turned upward and each strand extends upward. The central portion of each of the strands extending upward from the connecting roller provided on the balance weight is installed across the second support roller provided in the main frame, the stand of the surgical lighting device. The method according to any one of claims 1 to 4, The upper portion of the stretching frame is provided with a horizontal stretching portion, The horizontal stretching portion includes a main arm having one end connected to the upper end of the stretching frame and a stretching arm connected to the head at one end and supported to move in the horizontal direction to the main arm. stand.

Images