JP5131661B2 - Internal monitoring camera device - Google Patents

Description

  The present invention relates to an in-vivo monitoring camera device for fixing a camera inserted into the body with a needle and observing the inside of the body at a wide angle, and a mounting method thereof.

  In general, a treatment tool such as forceps and an endoscope are separately inserted into a body cavity of a patient, and an image of the distal end portion of the treatment tool inserted into the body cavity is captured in an observation field of the endoscope. Endoscopic surgery is performed in which the treatment operation is performed while observing the treatment state of the affected part with an endoscope. In endoscopic surgery, a wound of several centimeters (hereinafter referred to as a port) is opened in the patient's body, a cylinder called a trocar is inserted, and the treatment tool and endoscope are inserted into the body cavity through the trocar and operated. However, treatment work is being performed.

  When an operator incises or sutures an organ, the endoscope is brought close to the organ and the image is enlarged, so that the field of view becomes very narrow. For this reason, the state outside the work area cannot be grasped, and there is a risk of causing a medical accident by overlooking the movement of the treatment tool outside the work area, the bleeding site, or the residue such as gauze. is there.

  As a countermeasure against such a problem, it is conceivable to use a plurality of endoscopes to obtain wide-angle images and enlarged images. However, considering the invasiveness to the patient, the number of ports is limited to five. Limited. Since the chief surgeon and assistant have one treatment tool in each of the left and right hands, four ports are used for this, and the number of ports through which endoscopes can be inserted inevitably is limited to one. Will be. Therefore, it is impossible to insert a plurality of endoscopes and obtain a wide-angle image and an enlarged image from each endoscope.

  For this reason, for example, in Patent Document 1, two optical channels are provided in one endoscope, a wide-angle field is observed with one optical channel, and a part of the wide-angle field is arbitrarily observed with the other optical channel. A multi-view endoscope capable of magnifying observation at a magnification is disclosed.

  Further, in Patent Document 2, two types of wide-angle and enlarged objective lens groups are provided in parallel, and an observation image from each objective lens is displayed on the left side of the monitor as a wide-angle image and on the right side as an enlarged image. An endoscope that displays a reticle and clearly indicates the center of the field of view of an enlarged image is disclosed. This makes it possible to easily recognize the positional relationship between the observation images of the wide-angle image and the enlarged image.

In Patent Document 3, an imaging device is provided on a handle portion of a treatment tool such as forceps so that the imaging device can be moved by a link mechanism. This is a medical instrument that combines a forceps with a so-called endoscope. The imaging device is separated from the tip of the forceps by a link mechanism so that the periphery of the surgical site at the tip of the forceps can be observed. It is also good.
JP 2001-275953 A JP 2001-221960 A US Pat. No. 6,648,816

  In Patent Document 1 and Patent Document 2, the wide-angle objective lens and the magnification objective lens are provided so as to be substantially adjacent to each other at the distal end portion of the endoscope. In order to image the entire body cavity at a wide angle, it must be separated from the organ that is the surgical part as much as possible, but the endoscope tip is inserted into the body through the trocar and used to protrude from the trocar tip, As a result, the magnifying objective lens cannot be so far away from the organ to be operated on. Even if the endoscope tip is held inside the trocar and separated from the organ, the imaging range is blocked by the edge of the trocar. Therefore, since it is not possible to capture a wide angle so that the entire body can be grasped, it is still impossible to grasp the state outside the work area, the movement of the treatment tool outside the work area, the place where bleeding occurs, or gauze, etc. There is a risk of overlooking the residue of the patient and causing a medical accident.

  In Patent Document 3 as well, only the periphery of the surgical site at the tip of the forceps is observed, and a wide-angle image that can observe the entire body cavity cannot be obtained.

  In addition, since the imaging device is movable by a link mechanism, in order to take an image at a wide angle, the link must be lengthened and separated from the surgical site as much as possible. However, the longer the link is, the longer it projects. The overhang of the link hinders the operation of the forceps inserted from other ports, and there is a problem that the surgeon and the assistants are prevented from performing a smooth operation.

  The present invention has been made in view of the above-described matters, and an object thereof is to provide an in-vivo monitoring camera device that can observe the entire body at a wide angle without requiring a dedicated port.

The present invention includes a camera having a connector part inserted into the body and embedded with a video signal line from the camera in the upper part, and a needle thinner than the camera inserted from outside the body and incorporating the video signal line and connected to the connector part. And a flexible member for connecting the connector part and the camera, and a display for displaying the video signal, and mechanically fixing the camera by placing the needle on the connector part, The camera and the camera are connected by a flexible member, the angle of the camera is adjusted in the body , and the video signal from the camera is sent to the display through the connector part and the video signal line of the needle to be sent to the display. It is characterized by monitoring .

The present invention also provides a camera connected to a lower part of a needle inserted in the body and incorporating a video signal line, a flexible member that connects the needle and the camera, and a connector part that is connected to a wiring and embedded in the video signal line. And a display for displaying the video signal, the camera is mechanically fixed by putting the needle protruding from the body to the outside of the body into the connector portion, and the needle and the camera are interposed via a flexible member. It is connected, the angle of the camera is adjusted in the body , and a video signal from the camera is sent to the display through a video signal line of the needle and the connector unit to monitor the inside of the body .

  According to the present invention, since the camera can be fixed near the back of the skin away from the patient's organ, a wide-angle image inside the body can be displayed on the display. As a result, not only the operation area but also the outside of the work area can be monitored, so that oversight of the movement of the treatment tool outside the work area, bleeding sites, residues such as gauze, etc. can be prevented, and a medical accident occurs. There is an advantage that it is difficult.

  Further, according to the present invention, since the camera is mechanically fixed to the needle by the connector part, the distance between the camera and the surgical part can be arbitrarily selected by pulling the needle upward from the outside of the body, and the body cavity is inflated. It has the advantage that the entire surgical site can be observed at a wide angle.

  In addition, according to the present invention, after inserting the camera into the body, a thin needle is pointed from outside the body to connect the camera and the needle inside the body, so there is no need to open a dedicated port for the patient for the camera. For this reason, the number of ports that can be opened by the patient can be mounted without being restricted by the restriction of up to five, and there is an advantage that the inside of the body can be monitored at a wide angle.

  Furthermore, according to the present invention, since the patient is only scratched by a thin needle, the burden on the patient can be reduced.

  Furthermore, according to the present invention, since a dedicated port for the camera is not necessary as described above, a plurality of cameras can be mounted. By mounting a plurality of cameras, it is possible to obtain a wider range of images, observe the state of organs other than the patient's surgical site, and monitor for abnormalities.

  Furthermore, according to the present invention, the camera can be provided with an illumination element. Since the location where the illumination element is installed is also away from the organ, the entire body can be illuminated brightly by irradiating light at a wide angle, and the amount of light required for imaging by the camera will not be insufficient. For this reason, a clear image can be obtained from the camera, and there is an advantage that it is difficult to overlook abnormalities in the body during surgery.

  Further, according to the present invention, since the camera and the connector portion are connected by the flexible member, there is an advantage that the angle of the camera can be freely changed and a desired range can be monitored.

  With reference to FIG. 1, a schematic configuration of the in-vivo monitoring camera device 1 of the first embodiment will be described. The in-vivo monitoring camera device 1 mainly includes a camera 11, a needle 14, and a display 17.

  The camera 11 is inserted into the body through a trocar and captures a video signal by photographing the inside of the body. The camera 11 is not particularly limited as long as it can acquire an in-vivo image, but is inserted into the body through the trocar. Because there is a small camera. Once inserted into the body, the camera is not reused from a hygienic point of view and is discarded. For this reason, an inexpensive CMOS camera may be used.

  Further, the camera 11 may be used by incorporating a lighting element. Although the amount of light is required for photographing by the camera 11, a clear image can be obtained without a shortage of the amount of light for photographing by incorporating a lighting element and illuminating the inside of the body. It is preferable to use a small-sized illumination element and an LED (Light Emitting Diode).

  The camera 11 is connected to the first connector portion 13 via a flexible member 12. The flexible member 12 is made of resin or the like provided with a wire inside, and is movable and can maintain the camera 11 in a desired direction. Thereby, after mounting | wearing in a body, a camera can be grasped with forceps and angle adjustment can be carried out freely and a desired range can be observed. The first connector portion 13 is connected to the needle 14, and includes a power supply line, a video signal line, and a ground line therein as will be described later.

  The needle 14 is inserted from outside the body and is connected to the camera 11 inserted into the body. The outside of the needle 14 is the same as a normal blood collection needle having a diameter of about 1 mm, and is made of a material having affinity with the human body, such as metal or resin. The needle 14 has a power supply line, a video signal line, and a ground line penetrating from end to end in the longitudinal direction in a hollow portion of a normal blood sampling needle having a diameter of about 1 mm. One end (the lower side of the figure) of the needle 14 is cut obliquely and sharpened. When the first connector part 13 of the camera 11 is pierced, the respective video signal lines inside the needle 14 and the first connector part 13 are obtained. It is a mechanism to connect.

  The second connector portion 15 on the wiring 16 side has the same structure as the first connector portion 13 of the camera 11. The other end (upper side in the figure) of the needle 14 is connected to the second connector portion 15, and a video signal obtained from the camera 11 is transmitted to the display 17 through the wiring 16.

  The display 17 displays an image captured by the camera 11. The video signal photographed by the camera 11 is transmitted to the display 17 through the first connector portion 13 and the video signal line 21 (see FIGS. 2 and 3) built in the needle 14 and displayed. The surgeon and assistant perform treatment while viewing the video displayed on the display 17.

  Since the camera 11 is mechanically fixed to the needle 14 by the first connector part 13, the distance between the camera 11 and the surgical part can be arbitrarily selected by pulling the needle 14 upward from the outside of the body, and the body cavity is inflated to obtain a wider angle. The entire surgical site can be observed.

  In the above description, the case where an external power source is used has been described. However, the camera can be used with a built-in battery. In this case, it is not necessary to provide power lines for the first connector portion 13 and the needle 14, and the internal structure of the first connector portion 13 and the needle 14 can be simplified to a video signal line and a ground line.

  With reference to FIG.2 and FIG.3, the connection part of the needle | hook 14 and the 1st connector part 13 is demonstrated. 2A is a cross-sectional view taken along the line A-A 'of the needle 14 shown in FIG. 1, and FIG. 2B is a cross-sectional view taken along the line D-D' of the first connector portion 13 shown in FIG.

  As shown in FIG. 2A, inside the needle 14, a video signal line 21a, a ground line 22a, and a power supply line 23a are arranged coaxially, and an insulating member 24 is arranged between the lines. . The power supply line 23a and the ground line 22a through which a strong current flows are arranged on the inner side, and the video signal line 21a through which a weak current flows is arranged on the outermost side so that the current does not leak and cause trouble for the patient. Yes.

  As shown in FIG. 2 (B), the connection portion of the first connector portion 13 is also arranged coaxially from the outside in order of the video signal line 21b, the ground line 22b, and the power supply line 23b so as to correspond to the inside of the needle 14. An insulating member 24 such as an insulating resin is provided between the lines.

  The video signal line 21b, the ground line 22b, and the power supply line 23b of the first connector section 13 are slightly larger in diameter so as to be fitted to the video signal line 21a, the ground line 22a, and the power supply line 23a of the needle 14, respectively. Thereby, a connection surface becomes a large area and it is hard to produce a connection defect.

  3A is a B-B ′ cross-sectional view of the needle 14 shown in FIG. 1, and FIG. 3B is a C-C ′ cross-sectional view of the first connector portion 13 shown in FIG. 1. The inside of the distal end portion of the needle 14 forms a plane with the video signal line 21 a and the insulating member 24, and the video signal line 21 b and the like protrude slightly from the insulating member 24 inside the tip of the first connector portion 13. .

  By inserting the needle 14 into the first connector portion 13 as indicated by the broken line arrow, the video signal lines 21a and 21b of the needle 14 and the first connector portion 13 are connected to each other. FIG. 3C shows a state in which the needle 14 and the first connector portion 13 are connected. Since the video signal line 21b of the first connector portion 13 protrudes from the insulating member 24, the video signal line 21a of the needle 14 and the insulating member 24 are pushed in and fitted. Thereby, the video signal lines 21a and 21b are connected. Then, the needle 14 enters the first connector portion 13 until the needle 14 and the insulating member 24 of the first connector portion 13 contact each other, and the insulating member 24 of the needle 14 presses the video signal lines 21a and 21b mechanically. Fixed. The same applies to the ground line and the power supply line.

  Moreover, although the internal structure of the needle | hook 14 and the 1st connector part 13 demonstrated what arrange | positioned the video signal line etc. coaxially, it is not limited to this structure, For example, even if it is a structure shown in FIG. Good. 4A is a cross-sectional view of the needle 14 and FIG. 4B is a cross-sectional view of the first connector portion 13. The corresponding video signal line 21, ground line 22, and power supply line 23 are provided on concentric circles. The structure is filled with the insulating member 24. Moreover, you may use conductive rubber etc. for each line. When the camera 11 with a built-in battery is used, the power supply line 23 is not necessary, and if the body itself is used as the ground line 22, only one video signal line 21 needs to be built in and the connection can be easily performed.

  Next, with reference to FIG. 5, a method for mounting the in-vivo monitoring camera device according to the first embodiment will be described.

  First, a port for the forceps 32 and the endoscope 33 is opened in the skin 41, and the trocar 31 is inserted from the port. Gas is sent through the trocar 31 to inflate the body.

  Next, as shown in FIG. 5A, while observing the inside of the body with the endoscope 33, the camera 11 held by the forceps 32 is inserted into the body through the trocar 31b. The camera 11 is moved to a desired position by the forceps 32 as it is.

  After the position of the camera 11 is determined, the needle 14 is inserted from outside the body toward the position of the camera 11 as shown in FIG. The forceps 32 is operated to connect the first connector portion 13 of the camera 11 and the needle 14. As a result, the video signal line 21 b embedded in the first connector portion 13 and the video signal line 21 a built in the needle 14 are connected. Similarly, a power supply line and a ground line are also connected.

  After connecting the camera 11 and the needle 14, as shown in FIG. 5C, the needle 14 that is outside the body is pulled upward, and the outside of the needle 14 body is fixed at a position where wide-angle imaging of a desired surgical site can be performed. Then, the fixed position of the camera 11 may be selected. When removing the in-body monitoring camera device, the above is performed in the reverse order.

  FIG. 6 shows the usage status of the in-vivo monitoring camera device of the first embodiment. The entire organ 42 is imaged at a wide angle by the camera 11, and an image is transmitted to the display 17 through video signal lines built in the first connector portion 13, the needle 14, and the wiring 16, and the entire organ 42 is displayed on the display 17. Yes.

  Further, since the enlarged image of the organ 42 is displayed on the display 44 by the endoscope 33, the surgeon and the assistant can perform incision and suturing of the organ in the same manner as before while operating the forceps 32a and 32b.

  Since the entire organ 42 is projected by the camera 11, the operator or the like can grasp the state outside the work area, and the movement of the forceps and the like outside the work area and the place where bleeding has occurred are not overlooked. In addition, since there is no oversight of gauze residue after the operation, the risk of causing a medical accident is low.

  And since the needle 14 used for this invention is as thin as the normal injection needle for blood collection, it is not necessary to open a port in a patient's body exclusively for it. Even if a hole about the needle is opened in the patient, it will heal spontaneously immediately after the operation, so there is no problem even if a plurality of holes are opened. For this reason, a plurality of cameras 11 can be similarly mounted. By mounting a plurality of cameras 11, a wider range of images can be obtained.

  Further, the camera 11 may be used with an illumination device. In the case of surgery performed by opening a port to a patient, light is not irradiated into the body from the outside. Conventionally, an illuminating device such as an LED provided at the distal end of the endoscope or an external light source is guided to the distal end of the endoscope with an optical fiber to illuminate the surgical site and perform an operation. As described above, the illumination device is attached to the distal end portion of the endoscope, and the endoscope is brought close to the surgical site to obtain an enlarged image. Therefore, the irradiation range of the illumination device is naturally narrowed. For this reason, a clear peripheral image cannot be obtained because light irradiation is not sufficient except for the surgical site.

  In the present invention, since the inside of the body can be illuminated with the illumination element from a position far away from the surgical site, the area other than the surgical site can be illuminated in a wide range. Thereby, since the whole body is illuminated brightly and the amount of light necessary for photographing is not insufficient, a clear image can be obtained.

  Next, the in-vivo monitoring camera device 2 of the second embodiment will be described with reference to FIG. The in-vivo monitoring camera device 2 of the second embodiment is different from the in-vivo monitoring camera device 1 of the first embodiment described above in that one end of the needle 14 (below the needle 14 in the figure) and the camera 11 are connected. In the point. The other end of the needle 14 (the upper end of the needle 14 in the figure) is cut obliquely and sharp. After the camera 11 connected to the needle 14 is inserted into the body, the sharp tip portion of the needle 14 is inserted into the skin from the inside of the body toward the outside of the body, and the tip portion penetrates and protrudes outside the body.

  The camera 11, the flexible member 12, the first connector portion 13, the needle 14, the second connector portion 15, the wiring 16, the display 17, and other points are the same as in the in-vivo surveillance camera device 1 of the first embodiment described above. Therefore, the description is omitted.

  In the mounting method of the in-vivo monitoring camera device 2 of the second embodiment, first, the camera 11 connected to the needle 14 is inserted into the body through a trocar. Then, the upper part of the needle 14 is inserted from the body into the skin and penetrated to the outside of the body, the upper end of the needle 14 is projected, and the needle 14 is inserted into the second connector part 15 outside the body. Thereby, the video signal line is connected. Then, an operation such as pulling up the needle 14 may be performed to mechanically fix the camera 11 at a desired position. Since others are the same as the mounting method of the in-vivo monitoring camera device 1 of the first embodiment described above, description thereof is omitted.

  Using the apparatus shown in FIG. 8, it was verified that the in-vivo monitoring camera apparatus of the present invention can capture the inside of the body at a wide angle. The apparatus shown in FIG. 8 imitates the top plate of the table 51 as skin and the floor 52 as a human organ. A hole was made in the top plate of the base 51, the needle 14 was inserted into the hole, and the first connector portion 13 of the camera 11 was connected under the top plate. As the camera 11, a CMOS camera having a diameter of about 9 mm square (pixel number: 510 × 492 pixels) was used. The needle 14 had an outer diameter of 1.7 mm and an inner diameter of 1.3 mm, and had three wires built in, as described above, a video signal line, a power supply line, and a ground line. Then, the other end of the needle 14 was connected to the second connector portion 15, and a video signal photographed by the camera 11 through the wiring 16 was transmitted to the display 17. The camera 11 was lowered until it contacted the floor 52, the needle 14 was pulled up, the fixed position of the camera 11 was operated, and the distance d between the camera 11 and the floor 52 was changed, and the photographing range was measured while checking on the display.

  As a comparison, a hole is made in the top plate of the base 51, a trocar is inserted, an endoscope (Endscope) is inserted into the trocar, the tip of the endoscope is lowered until it comes into contact with the floor 52, and the endoscope is gradually lifted up The shooting range of the mirror was measured. The tip of the trocar was fixed at a position where it was fixed by a normal operation, and a position separated from the floor 52 by about 100 mm.

  The experimental results are shown in FIG. In both the CMOS camera and the endoscope, the shooting range gradually increases as the distance from the floor 52 increases.

However, in the endoscope, as the distance from the floor 52 is 100 mm or more, the photographing range is gradually narrowed. This is because if the distance is 100 mm or more, the distal end of the endoscope is stored in the trocar, and the imaging range is blocked by the distal end portion of the trocar. Therefore, the range in which the inside of the body can be monitored by the endoscope is limited to about 1.5 × 10 ³ mm ² , and it is understood that a wide-angle image larger than this cannot be obtained and the entire body cannot be monitored.

On the other hand, in the CMOS camera used in the present invention, even if it is 100 mm or more away from the floor 52, there is nothing to block the camera 11, so that a wider range can be photographed. In endoscopic surgery, the body is filled with gas and inflated to secure a work area. In this case, the skin can be separated from the organ by about 15 cm. In the present invention, when a camera can be mounted near the skin and placed 15 cm away from the organ, the monitoring area is about 2.7 × 10 ³ mm ² from FIG. 9, which is about twice the maximum monitoring area of the endoscope. It can be seen that a close range can be observed. As a result, by using the present invention, it is possible to take a wide-angle image of the inside of the body and monitor the movement of the treatment tool outside the work area, the site where bleeding occurs, or the residue such as gauze, which causes a medical accident. Risk can be reduced.

  Next, a camera connected to the needle was attached to the body of the pig, and endoscopy was performed, and it was demonstrated that the body monitoring camera device of the present invention can monitor the body of the pig at a wide angle. The camera was mounted in the same manner as described for the mounting method of the in-vivo monitoring camera device of the second embodiment described above. A CMOS camera (pixel number: 510 × 492 pixels) having a diameter of about 9 mm square was used as the camera. The needle used was an outer diameter of 1.7 mm, an inner diameter of 1.3 mm, and a length of about 10 cm, and was incorporated with the three wirings of the video signal line, the power supply line, and the ground line as described above.

  The respective arrangement positions of the camera 11, the endoscope 33, and the forceps 32 are shown in FIG. The lower abdomen 61 of the pig was drawn from outside the body, and the endoscope 33 was inserted from the lower side in the figure, and the operation was performed by approaching the large intestine, which is the predicate 62 shown in the broken line part. The camera 11 was mounted on the left side in the figure, and was monitored by monitoring the periphery of the large intestine, which is the predicate 62, at a wide angle. The camera 11 was fixed by pulling the needle out of the body to a position where it touched the inside of the pig's skin.

  FIG. 11 is an image obtained from the internal monitoring camera device and the endoscope 33. FIG. 11A shows an image obtained by the in-vivo monitoring camera device, and FIG. 11B shows an image obtained by the endoscope. In FIG. 11 (B), it can be seen that only the vicinity of the distal end of the forceps 32b can be monitored because the treatment is performed with the endoscope 33 brought close to the predicate 62. On the other hand, in the in-vivo monitoring camera device of the present invention, since the camera 11 is mounted at a position in contact with the inside of the pig's skin away from the predicate, as shown in FIG. A wide range can be photographed. In addition to the fact that the periphery of the predicate 62 can be confirmed extensively, not only the forceps 32b but also the other forceps 32a and the gauze 43 can be monitored. As a result, it was confirmed that the movement of the treatment tool outside the work area, the bleeding site, or the residue such as gauze can be monitored.

It is the schematic which shows the structure of the in-body monitoring camera apparatus which concerns on 1st Embodiment of this invention. It is sectional drawing which shows the structure of the needle | hook of this invention, and a connector part. It is sectional drawing which shows the connection part of the needle | hook of this invention, and a connector part. It is sectional drawing which shows the structure of the needle | hook of the other form of this invention, and a connector part. It is process drawing which shows the installation method of the in-body monitoring camera apparatus of this invention. It is the schematic which shows the use condition of the in-body monitoring camera apparatus of this invention. It is the schematic which shows the structure of the in-body monitoring camera apparatus which concerns on 2nd Embodiment of this invention. It is the schematic of the apparatus used for verification of the in-body monitoring camera apparatus of this invention. It is a graph which shows the imaging | photography area of the in-body monitoring camera apparatus of this invention. FIG. 3 is a layout view of a camera, an endoscope, and the like when the in-vivo monitoring camera device of the present invention is installed on a pig and verified. It is the in-vivo image of the pig image | photographed with the in-vivo monitoring camera apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 In-body monitoring camera apparatus 2 In-body monitoring camera apparatus 11 Camera 12 Flexible part 13 1st connector part 14 Needle 15 2nd connector part 16 Wiring 17 Display 21 Video signal line 22 Ground line 23 Power supply line 24 Insulating member 31 Trocar 32 Forceps 33 In Endoscope 41 Skin 42 Organ 43 Gauze 44 Display 51 units 52 Floor 61 Pig lower abdomen 62 Predicate

Claims (2)

A camera inserted into the body and having a connector part embedded with a video signal line from the camera at the top;
A needle thinner than the camera inserted from outside the body and incorporated with the video signal line and connected to the connector part;
A flexible member that connects between the connector portion and the camera;
A display for displaying the video signal,
The camera is mechanically fixed by putting the needle on the connector part, and the connector part and the camera are connected by a flexible member, and the angle of the camera is adjusted in the body. somatic monitoring camera device you characterized by monitoring the body a video signal sent to the display through the connector portion and the needle of the video signal lines. A camera inserted into the body and connected to the lower part of the needle containing the video signal line;
A flexible member connecting the needle and the camera;
A connector part connected with wiring and embedded with a video signal line;
A display for displaying the video signal,
The camera by means of the needle is projected from the body to the outside of the body to the connector portion mechanically fixed, the needle and the camera is connected via a flexible member, adjusting the angle of the camera in the body , the needle and the connector body within the monitor camera device you characterized by monitoring the body is sent to the display through the video signal line of a video signal from the camera.