Neurosurgery cranial drill

Abstract

The utility model provides a neurosurgery cranial drill, which belongs to the technical field of cranial drilling. The neurosurgery cranial drill comprises two support plates, the proximal ends of the two support plates are connected with a chain through a rotating shaft, a craniotomy electric drill is connected to the chain through a position adjustment mechanism, a limiting mechanism is arranged between the position adjustment mechanism and the chain, a rotating mechanism is arranged between the chain and the two support plates, a neck supporting mechanism is arranged between the two support plates, and a positioning mechanism is arranged between the craniotomy electric drill and the two support plates. The whole cranial drill has a reasonable structure, ingenious design, and flexible use. It can perform craniotomy at multiple angles and positions of the patient's head, and is relatively stable during the craniotomy process. At the same time, it has a positioning mechanism, which can greatly reduce the operating difficulty of the craniotomy, is beneficial to improving the success rate of the operation, reducing the operating intensity of medical staff, and has strong practicality.

Description

Technical Field

[0001] The utility model belongs to the technical field of skull drilling, and in particular relates to a skull drilling device for neurosurgery. Background Art

[0002] Craniotomy, also known as craniotomy, is generally performed clinically when the patient has craniocerebral injury or is removing a brain tumor. In craniotomy, a knife is used to cut a U-shaped incision on the patient's scalp at the affected area, and then a skull drill is used to make several holes in the skull. After taking out the corresponding skull and performing medical operations, the skull is put back to suture the wound.

[0003] In the prior art, doctors are often required to hold a cranial drill to perform positioning and drilling on the patient's skull. During the drilling process, it is easy for the drill position to deviate, and the angle and force to be uncontrollable, which increases the difficulty of operation and is not conducive to the operation of novice medical staff. In addition, the patient's head cannot be accurately pre-positioned, and the use is not convenient enough. Therefore, a neurosurgery cranial drill is designed. Utility Model Content

[0004] The purpose of the utility model is to provide a neurosurgery craniotomy, aiming to solve the problem that the craniotomy in the prior art often requires the doctor to hold the craniotomy in hand to perform positioning and drilling on the patient's skull. During the drilling process, it is easy to have the problem of craniotomy position deviation, uncontrollable angle and force, which increases the difficulty of operation, is not conducive to the operation of novice medical staff, and cannot accurately pre-position the patient's head, and is not convenient to use.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A neurosurgery cranial drill comprises two support plates, the proximal ends of the two support plates are connected with a link via a rotating shaft, a craniotomy electric drill is connected to the link via a position adjustment mechanism, a limiting mechanism is arranged between the position adjustment mechanism and the link, a rotating mechanism is arranged between the link and the two support plates, a neck supporting mechanism is arranged between the two support plates, and a positioning mechanism is arranged on the craniotomy electric drill and the two support plates.

[0007] Preferably, the position adjustment mechanism comprises a slide groove, the slide groove is opened in the chain, a slider is slidably connected in the slide groove, a fixed block is fixed on the front side of the slider, and the fixed block is fixed to the craniotomy electric drill.

[0008] Preferably, the rotating mechanism comprises a motor, and the motor is arranged on a support plate located on the left side, and an output end of the motor passes through the support plate and is fixed to a rotating shaft on the link.

[0009] Preferably, the limiting mechanism includes a through groove, which is opened on the rear side of the chain and is connected to the sliding groove. An epitaxial block is fixed on the rear side of the sliding block, and the epitaxial block passes through the through groove and extends backward. A screw is fixed on the rear side of the epitaxial block, and a cap is threadedly connected to the screw through a threaded sleeve. A top plate is fixed on the cap, and the top plate fits with the rear side wall of the chain.

[0010] Preferably, the positioning mechanism comprises a laser emitter, the laser emitter is arranged on the right side of the chain, a laser head is connected to the laser emitter, and a laser light is arranged on the craniotomy electric drill.

[0011] Preferably, the laser lamp is provided with an irradiation angle tilted downward, and the laser head intersects with an irradiation line of the laser lamp.

[0012] Preferably, the neck support mechanism includes two connecting rods, and the two connecting rods are respectively fixed on the close ends of two support plates, and the other ends of the two connecting rods are fixed with fixing plates, and a neck strap is fixed between the two fixing plates, and the neck strap is provided with a concave curvature, and the surface of the neck strap is provided with buffer cotton.

[0013] Preferably, a lamp post is fixed between the two support plates, and a plurality of equidistantly distributed LED lamps are arranged on the lamp post.

[0014] Preferably, the two support plates are both L-shaped, and two mounting holes are provided on the two support plates.

[0015] Preferably, the lamp post is provided with an arc matching the chain, the lamp post is provided with a wire, and the wire is electrically connected to an external power supply, and the wire connects a plurality of LED lamps in series.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. In this solution, the entire craniotomy device has a reasonable structure, ingenious design, and flexible use. It can perform craniotomy at multiple angles and positions of the patient's head, and is relatively stable during the craniotomy process. At the same time, it is equipped with a positioning mechanism, which can greatly reduce the difficulty of operating the craniotomy device, which is conducive to improving the success rate of the operation and reducing the operating intensity of medical staff. It has strong practicality and can effectively solve the problem that the craniotomy device in the prior art often requires the doctor to hold the craniotomy device to perform positioning drilling on the patient's skull when in use. During the drilling process, it is easy to have the problem of craniotomy position deviation, uncontrollable angle and strength, which increases the difficulty of operation, is not conducive to the operation of novice medical staff, and cannot accurately pre-position the patient's head. It is not enough to use it. In order to solve the problems of convenience and convenience, the utility model is used, firstly, two support plates in the device are installed to the head of the operating bed, and then the patient's neck is laid flat on the neck support mechanism in the device, and the patient's head is placed at the center of the chain. At this time, the craniotomy electric drill on the chain is used to perform craniotomy on the patient's head, and the position adjustment mechanism between the craniotomy electric drill and the chain can cooperate with the rotation mechanism between the chain and the two support plates to change the position of the entire craniotomy electric drill on the patient's head. The changed position can ensure that the craniotomy position is vertical to the patient's head, and the positioning mechanism can be used to check the specific position of the craniotomy electric drill before craniotomy, thereby reducing the difficulty of operating the entire craniotomy drill and improving the success rate and efficiency of the operation.

[0018] 2. In the present scheme, when the position of the craniotomy drill is adjusted, the position adjustment mechanism slides in the slide groove in the chain through the fixed block connected to the craniotomy drill and the fixed slider in the chain to change the lateral position of the entire craniotomy drill. In cooperation with the rotating mechanism, the drilling range of the craniotomy drill can be greatly improved. After the adjustment is completed, it can be locked by the limiting mechanism on the rear side to ensure the stability of the craniotomy drill during the drilling process. The rotating mechanism rotates through the chain and the craniotomy drill arranged on the chain to change the longitudinal position of the craniotomy drill drilling the skull, thereby improving the drilling range. After the craniotomy drill is adjusted to the drilling position through the position adjustment mechanism and the rotating mechanism, the limiting mechanism screws the entire cap, and the threaded sleeve in the cap is threadedly fastened on the screw rod to make the top plate on the cap fit tightly with the rear side wall of the chain, thereby limiting the movement of the entire craniotomy drill, achieving the locking and limiting effects, and improving the stability of the craniotomy drill during skull opening. The setting of the positioning mechanism determines the opening through the irradiation of the patient's head with the laser head and the laser light. The craniotomy position of the craniotomy drill can improve the convenience of adjusting the craniotomy drill and make the craniotomy position of the craniotomy drill more accurate. The laser light is set to have a downward irradiation angle, and the intersection of the irradiation lines of the laser head and the laser light can ensure that the intersection point of the laser head and the irradiation line of the laser light is clearer on the patient's head. The setting of the neck support mechanism can support the patient's neck through the neck strap and make the patient's head move closer to the craniotomy drill. Multiple LED lights arranged on the lamp post can improve the lighting conditions for craniotomy surgery with the craniotomy device and improve the visual effect. The mounting holes on the two L-shaped support plates can be used to install the entire device at the head of the operating bed. The loading and unloading are more flexible and the convenience of use is improved. The lamp post is set with an arc matching the chain. The arc can be used to cooperate with the multiple LED lights connected to the lamp post to evenly illuminate the drilling point, improve the operating brightness and light of medical staff, and indirectly improve the success rate of the operation. Multiple LED lights are connected in series through the wires in the lamp post and then powered uniformly by an external power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 It is an exploded view of the utility model;

[0022] Figure 3 For this utility model Figure 2 The second perspective diagram in ;

[0023] Figure 4 It is the front view of the utility model;

[0024] Figure 5 For this utility model Figure 4 Cross-sectional view at AA in the middle.

[0025] In the figure: 1. support plate; 2. mounting hole; 3. motor; 4. chain; 5. slide groove; 6. slider; 7. fixing block; 8. craniotomy electric drill; 9. laser head; 10. laser transmitter; 11. laser light; 12. connecting rod; 13. fixing plate; 14. neck strap; 15. lamp post; 16. LED light; 17. through groove; 18. epitaxial block; 19. screw; 20. cap; 21. threaded sleeve; 22. top plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1

[0028] See also Figure 1-Figure 5 The utility model provides the following technical solutions: a neurosurgery cranial drill comprises two support plates 1, the proximal ends of the two support plates 1 are connected with a link 4 through a rotating shaft, a craniotomy electric drill 8 is connected to the link 4 through a position adjustment mechanism, a limiting mechanism is arranged between the position adjustment mechanism and the link 4, a rotating mechanism is arranged between the link 4 and the two support plates 1, a neck supporting mechanism is arranged between the two support plates 1, and a positioning mechanism is arranged on the craniotomy electric drill 8 and the two support plates 1.

[0029] In the specific embodiment of the utility model, the entire craniotomy device has a reasonable structure, ingenious design, and flexible use. It can perform craniotomy at multiple angles and positions of the patient's head, and is relatively stable during the craniotomy process. At the same time, it is equipped with a positioning mechanism, which can greatly reduce the difficulty of operating the craniotomy device, which is beneficial to improving the success rate of the operation and reducing the operating intensity of medical staff. It has strong practicality and can effectively solve the problem that the craniotomy device in the prior art often requires the doctor to hold the craniotomy device to perform positioning drilling on the patient's skull when in use. During the drilling process, it is easy to have the problem of craniotomy position deviation, uncontrollable angle and strength, which increases the difficulty of operation, is not conducive to the operation of novice medical staff, and cannot accurately pre-position the patient's head, and is not convenient to use. When the utility model is used, the two support plates 1 in the device are first installed to the head of the operating bed, and then the patient's neck is laid flat on the neck support mechanism in the device, and the patient's head is placed at the center of the circle of the link 4. At this time, the craniotomy electric drill 8 on the patient's head is used to perform a craniotomy, and the position adjustment mechanism between the craniotomy electric drill 8 and the link 4 can cooperate with the rotating mechanism between the link 4 and the two support plates 1 to change the drilling position of the entire craniotomy electric drill 8 on the patient's head. The changed position can ensure that the drilling position with respect to the patient's head is in a vertical state, and the positioning mechanism can be used to pre-check the specific position of the craniotomy electric drill 8 before drilling the skull, thereby reducing the operating difficulty of the entire skull drill and improving the success rate and efficiency of the operation.

[0030] Specifically, the position adjustment mechanism includes a slide groove 5, which is opened in the link 4. A slider 6 is slidably connected in the slide groove 5. A fixed block 7 is fixed to the front side of the slider 6, and the fixed block 7 is fixed to the craniotomy electric drill 8.

[0031] In this embodiment: when the position adjustment mechanism adjusts the position of the craniotomy electric drill 8, the fixed block 7 and the fixed slider 6 connected to the craniotomy electric drill 8 slide in the slide groove 5 in the chain 4, thereby changing the lateral position of the entire craniotomy electric drill 8. In conjunction with the rotating mechanism, the drilling range of the craniotomy drill can be greatly improved. After the adjustment is completed, it can be locked through the limiting mechanism on the rear side to ensure the stability of the craniotomy electric drill 8 during the drilling process.

[0032] Specifically, the rotating mechanism includes a motor 3 , which is disposed on the support plate 1 on the left side, and an output end of the motor 3 passes through the support plate 1 and is fixed to a rotating shaft on the link 4 .

[0033] In this embodiment, the rotating mechanism rotates through the link 4 and the craniotomy electric drill 8 arranged on the link 4, so as to change the longitudinal position of the craniotomy electric drill 8 drilling the skull, thereby increasing the drilling range.

[0034] Specifically, the limiting mechanism includes a through groove 17, which is opened on the rear side of the link 4 and is connected to the slide groove 5. An epitaxial block 18 is fixed to the rear side of the slider 6, and the epitaxial block 18 passes through the through groove 17 and extends backward. A screw 19 is fixed to the rear side of the epitaxial block 18, and a cap 20 is threadedly connected to the screw 19 through a threaded sleeve 21. A top plate 22 is fixed to the cap 20, and the top plate 22 fits against the rear side wall of the link 4.

[0035] In this embodiment: after the craniotomy electric drill 8 is adjusted to the drilling position through the position adjustment mechanism and the rotation mechanism, the limiting mechanism twists the entire cap 20, and the threaded sleeve 21 in the cap 20 is threadedly fastened on the screw 19, so that the top plate 22 on the cap 20 is tightly fitted with the rear side wall of the chain 4, thereby limiting the movement of the entire craniotomy electric drill 8, achieving the locking and limiting effects, and improving the stability of the craniotomy electric drill 8 during craniotomy.

[0036] Specifically, the positioning mechanism includes a laser emitter 10 , which is disposed on the right side of the chain 4 , a laser head 9 is connected to the laser emitter 10 , and a laser lamp 11 is disposed on the craniotomy electric drill 8 .

[0037] In this embodiment, the positioning mechanism is arranged to determine the craniotomy position of the craniotomy drill 8 by irradiating the patient's head with the laser head 9 and the laser light 11, which can improve the convenience of adjusting the craniotomy drill 8 and make the craniotomy position of the craniotomy drill 8 more accurate.

[0038] Specifically, the laser lamp 11 is provided with an irradiation angle tilted downward, and the laser head 9 intersects with the irradiation line of the laser lamp 11 .

[0039] In this embodiment: the laser lamp 11 is set to have a downward sloping irradiation angle, and the intersection of the irradiation lines of the laser head 9 and the laser lamp 11 can ensure that the intersection point of the irradiation lines of the laser head 9 and the laser lamp 11 is clearer on the patient's head.

[0040] Specifically, the neck support mechanism includes two connecting rods 12, and the two connecting rods 12 are respectively fixed on the adjacent ends of the two support plates 1. The other ends of the two connecting rods 12 are fixed with fixing plates 13, and a neck strap 14 is fixed between the two fixing plates 13. The neck strap 14 is provided with a concave curvature, and the surface of the neck strap 14 is provided with a cushioning cotton.

[0041] In this embodiment, the neck support mechanism can support the patient's neck through the neck strap 14 and make the patient's head move closer to the craniotomy electric drill 8.

[0042] Specifically, a lamp post 15 is fixed between the two support plates 1 , and a plurality of equidistantly distributed LED lamps 16 are disposed on the lamp post 15 .

[0043] In this embodiment: a plurality of LED lights 16 arranged on the lamp post 15 can improve the lighting conditions for craniotomy surgery performed by the craniotomy device and improve the visual effect.

[0044] Specifically, the two support plates 1 are both L-shaped, and two mounting holes 2 are provided on the two support plates 1 .

[0045] In this embodiment: the mounting holes 2 on the two L-shaped support plates 1 can be used to mount the entire device at the head of the operating bed, which is more flexible in loading and unloading and improves the convenience of use.

[0046] Specifically, the lamp post 15 is provided with an arc matching the chain 4 , a wire is provided inside the lamp post 15 , and the wire is electrically connected to an external power source, and the wire connects a plurality of LED lamps 16 in series.

[0047] In this embodiment: the lamp post 15 is provided with an arc that matches the chain 4, and the arc can be used in conjunction with multiple LED lamps 16 connected to the lamp post 15 to evenly illuminate the drilling point, thereby improving the operating brightness and light for medical staff, indirectly improving the success rate of the operation, and the multiple LED lamps 16 are connected in series through the wires in the lamp post 15 and then powered uniformly by an external power supply.

[0048] The working principle and use process of the utility model: when the utility model is in use, firstly, the two support plates 1 in the device are installed to the head of the operating bed, and then the patient's neck is laid flat on the neck support mechanism in the device, and the patient's head is placed at the center of the circle of the chain 4. At this time, the craniotomy electric drill 8 on the patient's head is used to perform a craniotomy, and the position adjustment mechanism between the craniotomy electric drill 8 and the chain 4 can cooperate with the rotating mechanism between the chain 4 and the two support plates 1 to change the drilling position of the entire craniotomy electric drill 8 on the patient's head. The changed position can ensure that the drilling position with respect to the patient's head is in a vertical state, and before drilling the skull, the specific position of the skull drill 8 can be pre-checked through the positioning mechanism, thereby reducing the difficulty of operating the entire skull drill and improving the success rate of the operation. Power and efficiency, when the position of the craniotomy electric drill 8 is adjusted by the position adjustment mechanism, the fixed block 7 connected to the craniotomy electric drill 8 and the fixed slide block 6 slide in the slide groove 5 in the link 4 to change the lateral position of the entire craniotomy electric drill 8. In conjunction with the rotating mechanism, the drilling range of the craniotomy drill can be greatly improved. After the adjustment is completed, it can be locked by the limit mechanism on the rear side to ensure the stability of the craniotomy electric drill 8 during the drilling process. The rotating mechanism is rotated through the link 4 and the craniotomy electric drill 8 arranged on the link 4 to change the longitudinal position of the craniotomy electric drill 8 drilling the skull, thereby improving the drilling range. After the craniotomy electric drill 8 is adjusted to the drilling position through the position adjustment mechanism and the rotating mechanism, the limit mechanism twists the entire sleeve cap 20, and the threaded sleeve 21 in the sleeve cap 20 is locked on the screw 1 9 is threadedly fastened so that the top plate 22 on the cap 20 fits tightly with the rear side wall of the chain 4, so as to limit the movement of the entire craniotomy electric drill 8, achieve the locking and limiting effects, and improve the stability of the craniotomy electric drill 8 during craniotomy. The setting of the positioning mechanism is to determine the craniotomy position of the craniotomy electric drill 8 by irradiating the patient's head with the laser head 9 and the laser light 11, which can improve the convenience of adjusting the craniotomy electric drill 8 and make the craniotomy position of the craniotomy electric drill 8 more accurate. The laser light 11 is set with a downward irradiation angle, and the intersection of the irradiation lines of the laser head 9 and the laser light 11 can ensure that the intersection point of the irradiation lines of the laser head 9 and the laser light 11 is clearer on the patient's head. The setting of the neck support mechanism can support the patient's neck through the neck strap 14. The patient's head is moved closer to the craniotomy electric drill 8. Multiple LED lights 16 arranged on the lamp post 15 can improve the lighting conditions for craniotomy by the craniotomy device and improve the visual effect. The mounting holes 2 on the two L-shaped support plates 1 can be used to mount the entire device on the head of the operating bed. The loading and unloading are flexible, which improves the convenience of use. The lamp post 15 is provided with an arc matching the chain 4. The arc can be used to cooperate with multiple LED lights 16 connected to the lamp post 15 to evenly illuminate the drilling point, improve the operating brightness and light of medical staff, and indirectly improve the success rate of the operation. Multiple LED lights 16 are connected in series through the wires in the lamp post 15 and then powered uniformly by an external power supply. The entire craniotomy device has a reasonable structure, ingenious design, and flexible use.The invention can perform craniotomy at multiple angles and positions of the patient's head, and is relatively stable during the craniotomy process. At the same time, it is equipped with a positioning mechanism, which can greatly reduce the difficulty of operating the craniotomy, which is conducive to improving the success rate of the operation and reducing the operating intensity of medical staff. It has strong practicality and can effectively solve the problem that the craniotomy in the prior art often requires the doctor to hold the craniotomy to perform positioning drilling on the patient's skull. During the drilling process, it is easy to have the problem of craniotomy position deviation, uncontrollable angle and strength, which increases the difficulty of operation, is not conducive to the operation of novice medical staff, and cannot accurately pre-position the patient's head, and is not convenient to use.

[0049] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A neurosurgery cranial drill, characterized in that: The invention comprises two support plates (1), the adjacent ends of the two support plates (1) are connected to a link (4) via a rotating shaft, a craniotomy electric drill (8) is connected to the link (4) via a position adjustment mechanism, a limiting mechanism is arranged between the position adjustment mechanism and the link (4), a rotating mechanism is arranged between the link (4) and the two support plates (1), a neck supporting mechanism is arranged between the two support plates (1), and a positioning mechanism is arranged on the craniotomy electric drill (8) and the two support plates (1).

2. The neurosurgery cranial drill according to claim 1, characterized in that: The position adjustment mechanism comprises a slide groove (5), wherein the slide groove (5) is arranged in the link (4), a slider (6) is slidably connected in the slide groove (5), a fixing block (7) is fixed on the front side of the slider (6), and the fixing block (7) is fixed to the craniotomy electric drill (8).

3. The neurosurgery cranial drill according to claim 2, characterized in that: The rotating mechanism comprises a motor (3), wherein the motor (3) is arranged on a support plate (1) located on the left side, and an output end of the motor (3) passes through the support plate (1) and is fixed to a rotating shaft on the connecting ring (4).

4. The neurosurgery cranial drill according to claim 3, characterized in that: The limiting mechanism comprises a through groove (17), the through groove (17) is arranged on the rear side of the link (4), and the through groove (17) is communicated with the slide groove (5), an epitaxial block (18) is fixed on the rear side of the slide block (6), and the epitaxial block (18) passes through the through groove (17) and extends backward, a screw rod (19) is fixed on the rear side of the epitaxial block (18), a sleeve cap (20) is threadedly connected to the screw rod (19) through a threaded sleeve (21), a top plate (22) is fixed on the sleeve cap (20), and the top plate (22) is in contact with the rear side wall of the link (4).

5. The neurosurgery cranial drill according to claim 4, characterized in that: The positioning mechanism comprises a laser emitter (10), the laser emitter (10) is arranged on the right side of the chain (4), a laser head (9) is connected to the laser emitter (10), and a laser lamp (11) is arranged on the craniotomy electric drill (8).

6. The neurosurgery cranial drill according to claim 5, characterized in that: The laser lamp (11) is provided with an irradiation angle tilted downward, and the irradiation line of the laser head (9) intersects with the irradiation line of the laser lamp (11).

7. The neurosurgery cranial drill according to claim 6, characterized in that: The neck support mechanism comprises two connecting rods (12), the two connecting rods (12) are respectively fixed on the adjacent ends of the two support plates (1), the other ends of the two connecting rods (12) are fixed with a fixing plate (13), a neck clamping belt (14) is fixed between the two fixing plates (13), the neck clamping belt (14) is provided with a concave arc, and the surface of the neck clamping belt (14) is provided with a cushioning cotton.

8. The neurosurgery cranial drill according to claim 7, characterized in that: A lamp post (15) is fixed between the two support plates (1), and a plurality of LED lamps (16) distributed at equal distances are arranged on the lamp post (15).

9. The neurosurgery cranial drill according to claim 8, characterized in that: The two support plates (1) are both L-shaped, and two mounting holes (2) are provided on the two support plates (1).

10. The neurosurgery cranial drill according to claim 9, characterized in that: The lamp post (15) is provided with an arc matching the chain (4), the lamp post (15) is provided with a wire, and the wire is electrically connected to an external power source, and the wire connects a plurality of LED lamps (16) in series.

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