JP6784825B2 - Auxiliary tool set and in-body imaging device - Google Patents

Description

The present invention relates to an auxiliary tool set and an internal imaging device for installing an internal imaging device including an imaging unit that can be introduced into the body.

In recent years, minimally invasive surgery using small-diameter needles and cylinders has been adopted in medical practice in order to reduce the burden on patients associated with examinations and treatments. Among them are, for example, endoscopic surgery in which an internal procedure is performed without opening the patient's abdomen. In endoscopic surgery, a treatment tool such as a forceps and an endoscope are separately introduced into the patient's body cavity, and the operator observes the image of the tip of the treatment tool inserted in the body cavity with the endoscope. It is captured in the visual field, and the treatment work is performed while observing the treatment state of the affected area with the treatment tool with an endoscope. In endoscopic surgery, a treatment tool and an endoscope are introduced into the body cavity through a tube punctured into the body wall (for example, the abdominal wall) of the patient's abdomen or the like. This cylinder is a tubular member called a so-called trocca.

The surgeon brings the endoscope closer to the organ, magnifies the image, and incises or sutures the organ, but at this time, the surgeon's field of view becomes very narrow. Therefore, there is a demand for a device that can widely grasp the state outside the work area (for example, the movement of the treatment tool outside the work area, the bleeding state, the residual state of the residue such as gauze).

In response to such a request, in Patent Document 1, the connector protective cap connected to the camera-side cable is directly inserted into the abdominal wall, and the connector protective cap and the pull-out jig are magnetically coupled and bonded by magnetic force inside the body. A device for pulling out a connector protective cap from the inside of the body to the outside of the body through the inside of the trocca in the state of being in the state is disclosed.

Japanese Patent Gazette "Patent No. 6027275 Gazette" Japanese Patent Gazette "Patent No. 6019253 Gazette" Japanese Patent Gazette "Patent No. 4599474" Japanese Patent Gazette "Patent No. 4472727" Japanese Patent Publication "Japanese Patent Laid-Open No. 2010-12222"

According to Patent Document 1, when the magnet of the connector protection cap is attracted to the magnet of the drawer jig, the magnet of the connector protection cap is obliquely attracted to the magnet of the drawer jig or is displaced from the magnet of the drawer jig. It may be adsorbed.

If you try to pull out the connector protection cap through the inside of the tubular device in such a suction state, the magnet of the connector protection cap that is attracted to the magnet of the pull-out jig will be caught in the opening of the troccer when it enters the inside of the trolley, and the connector There is a problem that the magnet of the protective cap is separated from the magnet of the pull-out jig.

One aspect of the present invention has been made in view of the above problems, and an object of the present invention is to provide an auxiliary tool set for installing an internal imaging device having an imaging unit that can be introduced into the body and having excellent work efficiency. The purpose is to propose an in-vivo imaging device.

The auxiliary tool set according to one aspect of the present invention is an auxiliary tool set used for installing the internal imaging device in the body, and is a first auxiliary tool to which the internal imaging device is connected and the first auxiliary tool. A tubular device having one end introduced into the body while the held portion is held by the holding portion, including a holding portion for holding the held portion and a connecting portion connected to the holding portion. A second auxiliary tool for pulling out from the inside of the body through the inside is provided, and the holding portion and the held portion have a structure in which the holding portion and the held portion are adsorbed in a straight line, or the holding portion. It is characterized by having a structure in which the portion and the held portion are aligned in a straight line when entering the opening of the tubular device.

According to one aspect of the present invention, in a state where the held portion of the first auxiliary tool is held by the holding portion of the second auxiliary tool, one end is pulled out from the body through the inside of the tubular device introduced into the body. As a result, the first auxiliary tool connected to the in-vivo imaging device can be easily taken out of the body, and the work efficiency is improved.

It is a schematic diagram which shows the structure of the in-vivo imaging system. It is a schematic diagram which shows the installation method in the body of a camera unit. It is a schematic diagram which shows the usage situation of the in-vivo imaging system. It is a conceptual diagram which shows the attracting state of a holding magnet part and a connector cap with a magnetic material when the holding magnet part and the connector cap with a magnetic material are attracted in the body, and (a) is a connector cap with a magnetic material. A state in which the holding magnet portion 7 is aligned and attracted is shown, (b) shows a state in which the magnetic connector cap is obliquely attracted to the holding magnet portion, and (c) is a state in which the magnetic connector cap and the holding magnet are held. Although the magnet portions 7 are aligned in a straight line, the magnet portion 7 shows a state in which the connector cap with a magnetic material and the holding magnet portion are displaced and attracted to each other. (A) is a conceptual diagram showing a structure in which the holding magnet portion and the connector cap with a magnetic material are surely aligned and attracted to each other, and (b) is a conceptual diagram in which the holding magnet portion and the connector cap with a magnetic material enter the opening of the troccer. It is a conceptual diagram showing a structure arranged in a straight line. It is a schematic diagram which shows the schematic structure of the auxiliary tool set which concerns on Embodiment 1. FIG. It is a schematic diagram explaining how a magnetic material part is attracted to a holding magnet part, (a) shows the appearance of the holding magnet part and a magnetic material part before adsorption, (b) is the holding magnet part and magnetism before suction. The cross section of the body part is shown, and (c) shows the cross section of the holding magnet part and the magnetic body part after adsorption. It is a conceptual diagram which shows the direction of the magnetic pole of the magnet of the holding magnet part, (a) is the direction from the holding magnet part side to the magnetic body part side, (b) is the direction from the magnetic body part side toward the holding magnet part side. It shows. It is a schematic diagram which shows the schematic structure of the auxiliary tool set which concerns on Embodiment 2, and it explains how the magnetic material part is attracted to the holding magnet part. (A) shows the appearance of the holding magnet part and the magnetic material part before adsorption, (b) shows the cross section of the holding magnet part and the magnetic material part before adsorption, and (c) shows the holding magnet part and magnetism in the adsorption process. The cross section of the body part is shown, and (d) shows the cross section of the holding magnet part and the magnetic body part after adsorption. (A) to (e) are schematic views explaining an example of fixing a holding magnet part and a rod-shaped part. It is a schematic diagram which shows the schematic structure of the auxiliary tool set which concerns on Embodiment 3, and it explains how the magnetic material part is attracted to the holding magnet part. (A) shows the appearance of the holding magnet part and the magnetic material part before adsorption, (b) shows the cross section of the holding magnet part and the magnetic material part before suction, and (c) and (d) show the holding after suction. The cross section of the magnet part and the magnetic body part is shown, and (e) shows the enlarged cross section of the bearing part of the holding magnet part. It is a schematic diagram which shows the schematic structure of the auxiliary tool set which concerns on Embodiment 4, and it explains how the magnetic material part is attracted to the holding magnet part. (A) shows the appearance of the holding magnet part and the magnetic material part before adsorption, (b) shows the cross section of the holding magnet part and the magnetic material part before adsorption, and (c) shows the holding magnet part and magnetism after suction. It shows the cross section of the body part. It is a schematic diagram which shows the schematic structure of the auxiliary tool set which concerns on Embodiment 5, and it explains how the magnetic material part is attracted to the holding magnet part. (A) shows the appearance of the holding magnet part and the magnetic material part before adsorption, (b) shows the cross section of the holding magnet part and the magnetic material part before adsorption, and (c) shows the holding magnet part and magnetism after suction. It shows the cross section of the body part. (A) and (b) are schematic views which show the schematic structure of the auxiliary tool set which concerns on Embodiment 6, and show the cross section of the holding magnet part and the magnetic material part before suction. It is a schematic diagram which shows the other schematic structure of the auxiliary tool set which concerns on Embodiment 6, and shows the cross section of the holding magnet part and the magnetic material part before suction. It is a schematic diagram which shows the schematic structure of the holding magnet part 7g which concerns on Embodiment 7. This is an example in which the magnetic material is arranged so as to cover the front end side from the side surface side of the magnet, (a) is a front view, (b) is a cross-sectional view, and (c) is a perspective perspective view. This is an example in which a groove is dug in a magnet and a magnetic material is embedded in the groove, where (a) is a front view, (b) is a cross-sectional view, and (c) is a perspective perspective view. It is a schematic diagram which shows the schematic structure of the holding magnet part which concerns on Embodiment 8, (a) is the sectional view of the holding magnet part, (b)-(e) are the front view which shows each arrangement example of the opening, and It is a sectional view. It is a schematic diagram which shows the schematic structure of the auxiliary tool set which concerns on Embodiment 9, and it explains how the magnetic material part is attracted to the holding magnet part. (A) is a front view of the holding magnet portion, (b) is a cross-sectional view of the holding magnet portion, and (c) is a perspective perspective view of the holding magnet portion.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 20.

(Internal imaging system)
FIG. 1 is a schematic view showing the configuration of the in-vivo imaging system of the first embodiment. As shown in FIG. 1, the internal imaging system 1 includes a camera-side cable 12 (cable) and an imaging unit (imaging unit) including an imaging element, and a camera unit 11 (internal imaging device) introduced into the body. A support tube 13 having a trocca connection portion 13x used for connecting to the trocca 31 (tubular instrument) introduced into the body on one end side and a convex joint portion 13y used for joining with the camera unit 11 on the other end side. A control system including a camera unit control device 17 and a display 18 (display device), and a device side cable 16 for connecting the camera side cable 12 and the camera unit control device 17 are provided.

The camera-side cable 12 has a convex camera-side cable connector 15a on the opposite side of the connection end with the camera unit 11, and the device-side cable 16 has a concave shape on the opposite side of the connection end with the camera unit control device 17. It has a device-side cable connector 15b. Further, the camera-side cable 12 has a stopper 48 for restricting the movement of the support tube 13 between the connection end with the camera unit 11 and the camera-side cable connector 15a. The camera-side cable 12 is connected to the image pickup unit of the camera unit 11.

A configuration in which the concave camera-side cable connector and the convex device-side cable connector may be fitted may be used. Further, in FIG. 1, one pin of the camera-side cable connector 15a is shown, but usually, the number of pins corresponds to the number of electric wires used for the cable. In the following, the camera-side cable connector 15a may be abbreviated as the connector 15a, and the device-side cable connector 15b may be abbreviated as the connector 15b.

In the in-vivo imaging system 1, the inner end of the trocca 31 punctured in the abdominal wall 41 and the support tube 13 are connected by the trocca connection portion 13x, and the camera unit 11 and the support tube 13 introduced into the body are connected. It is joined by the convex joint portion 13y. Further, the connector 15a of the camera side cable 12 is pulled out of the body through the support tube 13 and the trocca 31. Then, when the connector 15a is fitted into the connector 15b, the camera unit 11 and the camera unit control device 17 are electrically connected, and the image captured by the camera unit 11 is transmitted to the camera unit control device 17. The camera unit control device 17 displays the image transmitted from the camera unit 11 on the display 18, and also transmits the control signal to the camera unit 11. The camera unit control device 17 and the display 18 may be integrated or separate. Further, as described later, the camera unit 11 is used by pulling up the camera side cable 12. Therefore, there is a possibility that a load will be applied to the connection portion between the camera-side cable 12 and the image pickup unit. A structure as described later is provided at the joint of the camera unit 11 with the support tube 13 and inside the camera unit 11 so that the connection is not disconnected due to an excessive load and the device cannot be used normally. It is desirable to have. Specifically, the structure is a structure that does not directly apply a load to the connection portion when the camera side cable 12 is pulled up.

Here, since a wired method is adopted for transmission from the camera unit 11 to the camera unit control device 17, the transmission speed can be increased and signals can be stably transmitted and received, so that a high-resolution image can be obtained. In addition, communication can be performed with lower power than in the wireless system, and the camera unit 11 can be downsized by supplying power from the outside. Therefore, the miniaturization makes it possible to reduce the damage caused when the camera unit 11 is introduced into the body, which has the effect of improving the minimal invasiveness.

As described above, the camera-side cable 12 and the camera-side cable connector 15a are temporarily returned to the body when the camera unit 11 is collected. Therefore, it is necessary to maintain cleanliness of the device-side cable connector 15b that comes into contact with the device and a part of the device-side cable 16 on the device-side cable connector 15b that is touched by a clean hand. It is desirable that the device-side cable 16 has a structure that can be cleaned by autoclave sterilization, EOG sterilization, or the like in consideration of repeated use.

Further, although not shown, an intermediate cable may be further provided between the camera side cable 12 and the device side cable 16. By providing an intermediate cable, the thickness of the cable can be changed step by step from the small diameter camera side cable 12 to the device side cable 16, and the use of a small diameter cable with a relatively slow transmission speed is the minimum. Can be limited. As a result, high-speed transmission becomes possible and a high-resolution image can be obtained. In this case, it is preferable that the outer diameter of each cable is gradually increased from the camera unit 11 side to the device side cable 16 side. The same applies to the connector.

Further, by using the intermediate cable, there is a special effect that the clean field and the unclean field at the time of surgery can be effectively separated. That is, the camera-side cable 12 to be inserted into the body is set to the minimum necessary length in order to increase the transmission speed and facilitate handling at the time of installation, and from there, beyond the clean field, the dirty field. Until it enters, use an intermediate cable that has been sterilized in advance. By doing so, the camera-side cable connector 15a and the camera-side connector of the intermediate cable can be fitted in a clean field, and cleanliness can be maintained. On the other hand, the device-side connector of the intermediate cable is fitted with the device-side cable connector 15b of the device-side cable 16 in the dirty field, becomes dirty, and is treated as a dirty device after fitting. Therefore, it can be completely separated from the clean instrument side.

Further, by dividing the range of the clean field by using the intermediate cable, the range requiring durability against sterilization and the like is up to the device side connector of the intermediate cable. Therefore, it is desirable that the camera-side cable connector 15a, the camera-side connector of the intermediate cable, and the device-side connector be connectors having sterilization resistance. Further, in this case, the device-side cable 16 does not need to have sterilization resistance, and a cable and a connector having improved transmission performance can be used. Further, the intermediate cable may be further divided into several cables.

In addition, by gradually thickening the cable and connector, when the cables are connected to each other, the thickened part gets caught in the trocca 31, so the filthy part of the cable that was in the filthy field makes the trocca 31 thicker. It can be prevented from passing through and invading the body. In that case, it is desirable that the connector connected to the camera-side cable connector 15a has a thickness that allows it to be caught in the trocca 31.

Further, in order to prevent the cable from entering the body, a cable holder that can be joined to the trocca 31 and can fix the camera-side cable 12 may be provided.

(How to use the internal imaging system)
2 (a) to 2 (g) are schematic views showing a method of installing the camera unit in the body according to the first embodiment. FIG. 3 is a schematic view showing a usage state of the in-vivo imaging system 1 in the first embodiment. A connector cap 8 with a magnetic material (a protective cap having a magnetic material at the tip) is put on the connector 15a of FIG. 1, and a drawer 7 having a grip portion 7y at one end and a holding magnet portion 7g at the other end is provided. Use.

A magnetic material other than a magnet is used as the magnetic material of the connector cap 8 with a magnetic material. By doing so, the connector cap 8 with a magnetic material does not arbitrarily stick to other metal treatment tools, and the work efficiency is improved.

As shown in FIG. 2A, the operator first opens a hole (port) in the abdominal wall 41 for inserting forceps or an endoscope into the body cavity, and inserts the troccers 32a to 32c into the port. Further, in order to install the camera unit 11 in the body cavity, a port is opened in the abdominal wall 41 at a position where the entire organ including the affected part can be seen, and the trocca 31 is inserted.

Next, as shown in FIG. 2B, the surgeon inserts the endoscope 34 into the body cavity through the trocca 32c and observes the inside of the body using the endoscope 34. While performing this work, the surgeon was passed through the camera unit 11 gripped by the forceps 33a, the camera side cable 12 including the camera side cable connector 15a covered with the magnetic connector cap 8, and the camera side cable 12. The support tube 13 is inserted into the body cavity through the trocca 32b.

Next, as shown in FIG. 2 (c), the operator operates the forceps 33a to move the camera unit 11 to the vicinity of the trocca 31, and inserts the drawer 7 into the body cavity through the trocca 31.

Next, as shown in FIGS. 2 (d) and 2 (e), the drawer 7 is pulled from the trolley 31 in a state where the connector cap 8 with a magnetic material is adhered to the holding magnet portion 7 g provided at the tip of the drawer 7. Pull out. As a result, the camera-side cable connector covered with the magnetic connector cap 8 is led out of the body. At this time, the camera unit 11 (the gripping portion thereof) is in a state of being gripped by the forceps 33a.

Next, as shown in FIG. 2 (f), the operator pulls up the camera-side cable 12 led out of the body with forceps, a hand, or the like to bring the tip of the support tube 13 close to the opening of the trocca 31.

Next, as shown in FIG. 2 (g), the surgeon inserts one end of the support tube 13 into the inner end of the trocca 31 by further pulling up the camera side cable 12 and the camera unit 11. Fit the camera unit 11 into the other end. As a result, the operator connects one end of the support tube 13 to the inner end of the trocca 31 and joins the other end to the camera unit 11 to maintain the tension of the camera side cable 12. The camera side cable 12 is fixed to the abdominal wall 41 or the like.

When the camera-side cable connector covered with the magnetic connector cap 8 is pulled out of the body using the pull-out tool 7, if the support tube 13 is in the vicinity of the trocca 31, the magnetic connector cap 8 passes through the trolley 31. Before this is done (before the operator grabs the magnetic connector cap 8), the support tube 13 gets into the opening of the trocca 31. Therefore, it is conceivable that the connector cap 8 with a magnetic material is separated from the holding magnet portion 7g due to the friction.

Therefore, a stopper 48 for stopping the movement of the support tube 13 toward the connector 15a may be provided between the camera unit 11 and the connector 15a. In this way, after the connector cap 8 with the magnetic material passes through the trocca 31 (after the operator grabs the connector cap 8 with the magnetic material), the support tube 13 enters the opening of the trolley 31, so that the camera unit 11 Can be installed smoothly.

After the camera unit 11 is installed in the body, as shown in FIG. 3, the connector 15a is fitted into the connector 15b to connect the camera side cable 12 and the device side cable 16. As a result, the local image of the treatment unit is displayed on the display 118 by the endoscope control device 117, and the entire image in the organ 42 taken by the camera unit 11 is displayed on the display 18 by the camera unit control device 17.

After use, it is as follows. First, the operator inserts the forceps 33b into the gap between the support tube 13 and the camera unit 11 while grasping the grip portion of the camera unit 11 in the body with the forceps 33a, and operates the forceps 33b to operate the support tube. The 13 and the camera unit 11 are separated. Next, the operator pulls the support tube 13 away from the camera unit 11 and leads the camera unit 11, the camera side cable 12, and the support tube 13 out of the body from the trocca 32b. At this time, the connector 15a is once returned to the body through the trocca 31 and then pulled out of the body through the trocca 32a or 32b.

(Retaining magnet part 7 g and connector cap with magnetic material 8)
FIG. 4 is a conceptual diagram showing the attracting state of the holding magnet portion 7g and the magnetic body-attached connector cap 8 when the holding magnet portion 7g and the magnetic material-attached connector cap 8 are attracted to each other in the body. ) Indicates a state in which the magnetic body-attached connector cap 8 and the holding magnet portion 7g are attracted to each other in a straight line, and (b) indicates a state in which the magnetic material-attached connector cap 8 is obliquely attracted to the holding magnet portion 7g. (C) shows a state in which the magnetic body-attached connector cap 8 and the holding magnet portion 7g are aligned with each other, but the magnetic material-attached connector cap 8 and the holding magnet portion 7g are displaced and attracted to each other.

Note that FIG. 4 is a diagram for explaining the feature points of one aspect of the present invention. Therefore, the structure and shape of the holding magnet portion 7g and the connector cap 8 with a magnetic material shown in FIG. 4 are conventionally used. It should be added that this is not related to one aspect of the present invention.

As described with reference to FIGS. 2D and 2E, the magnetic connector cap 8 is attached to the holding magnet portion 7g provided at the tip of the drawer 7 with the magnetic connector cap 8 adhered to the holding magnet portion 7g. The covered camera-side cable connector is led out of the body.

It should be noted here that, depending on the state of attraction between the holding magnet portion 7g and the magnetic connector cap 8, when the holding magnet 7g and the magnetic connector cap 8 enter the opening of the trocca 31, the holding magnet The magnetic connector cap 8 attracted to the portion 7g may be caught in the opening of the trocca 31 and the magnetic connector cap 8 may be detached from the holding magnet portion 7g.

Specifically, as shown in FIG. 4A, if the connector cap 8 with a magnetic material and the holding magnet portion 7g are attracted to each other in a straight line and can enter the inside of the trocca 31, they are It is possible to pass through the inside of the linear trocca 31 while both are adsorbed.

On the other hand, as shown in FIG. 4B, when the magnetic connector cap 8 is obliquely attracted to the holding magnet portion 7g, both of them pass through the inside of the linear troccer 31 while being attracted. This is not possible, and the connector cap 8 with a magnetic material is detached from the holding magnet portion 7g. Even if the connector cap 8 with a magnetic material and the holding magnet portion 7g shown in FIG. 4 (c) are displaced and attracted to each other, the magnetism is obtained from the holding magnet portion 7g as in the state shown in FIG. 4 (b). The body connector cap 8 comes off.

When the holding magnet portion 7g and the connector cap 8 with a magnetic material are attracted to each other in the body, the inventors of the present application have achieved work efficiency by attracting the holding magnet portion 7g and the connector cap 8 with a magnetic material by magnetic force, while the magnetism from the holding magnet portion 7g is achieved by itself. It was considered that there was a limit to avoiding the detachment of the body connector cap 8. Therefore, from another point of view, many studies have been conducted to see if the detachment of the connector cap 8 with a magnetic material from the holding magnet portion 7g can be avoided. As a result, by devising the shapes of the holding magnet portion 7g and the connector cap 8 with the magnetic material, it is possible to reliably avoid the detachment of the connector cap 8 with the magnetic material from the holding magnet portion 7g, which could never be achieved until now. It was found that the above was realized, and the invention was completed.

That is, one aspect of the present invention is a structure in which the holding magnet portion 7g and the connector cap 8 with a magnetic material are surely aligned and attracted to each other, and / or the holding magnet portion 7g and the connector cap 8 with a magnetic material are troccured. It is characterized by having a structure that is aligned in a straight line when entering the opening of 31.

5A and 5B are conceptual diagrams for explaining the above-mentioned two structures, and FIG. 5A is a structure in which the holding magnet portion 7g and the connector cap 8 with a magnetic material are reliably aligned and attracted (hereinafter, suction structure A). (B) indicates a structure (hereinafter referred to as an adsorption structure B) in which the holding magnet portion 7g and the connector cap 8 with a magnetic material are aligned in a straight line when entering the opening of the trocca 31. Is.

Depending on the suction structure A shown in FIG. 5A, the holding magnet portion 7g and the connector cap 8 with a magnetic material are attracted only when they are aligned in a straight line, or they are aligned in a straight line in the suction process. .. Further, depending on the suction structure B shown in FIG. 5B, the holding magnet portion 7g and the connector cap 8 with a magnetic material are aligned when they enter the opening of the trocca 31.

The diameter of the holding magnet portion 7g and the connector cap 8 with a magnetic material is preferably reduced in order to realize low invasiveness. Specifically, it is desirable that the diameter is 3 mm or less. Further, since the camera-side cable 12 is led out from the inside of the body through the trocca 31 with the connector cap 8 with a magnetic material covered, the diameter of the camera-side cable 12 is the diameter of the connector cap 8 with a magnetic material. Needless to say, it is desirable that the diameter be equal to or less than the diameter. These are the same in each of the following embodiments of the present invention.

Hereinafter, each embodiment of the present invention relating to the above-mentioned adsorption structure A, adsorption structure B, and a combination structure thereof will be described with reference to the drawings.

[Embodiment 1]
FIG. 6 is a schematic view showing a schematic configuration of an auxiliary tool set according to the first embodiment of the present invention. As shown in FIG. 6, the auxiliary tool set according to the first embodiment includes a connector cap 8 with a magnetic material (first auxiliary tool) and a drawer tool 7 (second auxiliary tool). As described above, the auxiliary tool set is used to install the camera unit 11 in the body.

The connector cap 8 with a magnetic material functions as a waterproof cap for the connector 15a shown in FIG. 1, and includes a cap portion 8c and a magnetic material portion 8g (held portion) provided at the tip of the cap portion 8c. The cap portion 8c has a concave shape corresponding to the shape of the connector 15a, and the connector 15a is fitted into the concave shape portion for mounting.

The drawer 7 is provided at one end and includes a holding magnet portion 7g (holding portion) for adhering the connector cap 8 with a magnetic material, a rod-shaped portion 7x (connecting portion), and a grip portion 7y provided at the other end. Instead of the rod-shaped portion 7x, a wire (connecting portion) in which the holding magnet portion 7g is provided at one end and the grip portion 7y is provided at the other end may be used. It is desirable that the rod-shaped portion 7x of the drawer 7 has a diameter equal to or smaller than the diameter of the holding magnet portion 7g in order to pass the trocca 31. This also applies to other embodiments.

7A and 7B are schematic views illustrating how the magnetic material portion 8g is attracted to the holding magnet portion 7g, FIG. 7A shows the appearance of the holding magnet portion 7g and the magnetic material portion 8g before adsorption, and FIG. 7B shows the appearance of the magnetic material portion 8g. The cross section of the holding magnet part 7g and the magnetic body part 8g before the adsorption is shown, and (c) shows the cross section of the holding magnet part 7g and the magnetic body part 8g after the suction.

The holding magnet portion 7g includes a magnet 7g1 and a magnet coating portion 7g2 that covers the magnet 7g1. Further, the magnetic material portion 8g includes a magnetic material 8g1 and a magnetic material coating portion 8g2 that covers the magnetic material 8g1.

As shown in FIG. 7, the holding magnet portion 7g has a concave end portion facing the magnetic material portion 8g, while the magnetic body portion 8g has a convex end portion facing the holding magnet portion 7g. It has become. By aligning these uneven shapes, the holding magnet portion 7 g and the magnetic material portion 8 g are attracted to each other in a straight line.

The auxiliary tool set according to the first embodiment is a combination of uneven shapes that are completely fitted, and the holding magnet portion 7 g and the magnetic material portion 8 g are reliably aligned and attracted. The above-mentioned uneven shape may be processed by matching the shape of the above-mentioned end portion of the holding magnet portion 7g with the shape of the above-mentioned end portion of the magnetic material portion 8g.

According to the auxiliary tool set according to the first embodiment, the holding magnet portion 7g and the magnetic material portion 8g mesh with each other only in a straight line, so that when they are pulled out from the trocca 31, their central axes are displaced. There is no possibility that it is present, and it can be reliably pulled out from the trocca 31.

As shown in FIG. 8, the direction of the magnetic pole of the magnet 7g1 of the holding magnet portion 7g is the direction from the holding magnet portion 7g side toward the magnetic material portion 8g side (FIG. 8A), or the magnetic material portion 8g. The direction is from the side toward the holding magnet portion 7g side (FIG. 8B).

Further, in the holding magnet portion 7g, a magnetic material, a non-magnetic material, or a coating material can be used for the magnet coating portion 7g2 that covers the magnet 7g1. It is desirable to use a biocompatible material as the coating material. Specifically, it is conceivable to coat with a polymer such as parylene, to form a film with a material such as DLC (Diamond-like-carbon), or to apply a drug such as heparin or xylocaine. Similar coating materials may be used in other embodiments as well.

Further, the holding magnet portion 7g may have a convex shape at the end facing the magnetic body portion 8g, and the magnetic body portion 8g may have a convex shape at the end facing the holding magnet portion 7g.

[Embodiment 2]
FIG. 9 is a schematic view showing a schematic configuration of an auxiliary tool set according to a second embodiment of the present invention, and illustrates a state in which 8 g of a magnetic material portion is attracted to 7 g of a holding magnet portion. FIG. 9A shows the appearance of the holding magnet portion 7g and the magnetic material portion 8g before adsorption, and FIG. 9B shows the cross section of the holding magnet portion 7g and the magnetic material portion 8g before adsorption, and FIG. 9C. ) Show the cross section of the holding magnet part 7g and the magnetic body part 8g in the adsorption process, and FIG. 9D shows the cross section of the holding magnet part 7g and the magnetic body part 8g after the suction process.

The difference between the second embodiment and the first embodiment is that the shapes of the ends of the holding magnet portion 7 g and the magnetic body portion 8 g are conical and mortar-shaped instead of the uneven shape.

As shown in FIG. 9, the holding magnet portion 7g has a mortar-shaped end facing the magnetic material portion 8g, while the magnetic body portion 8g has a conical end facing the holding magnet portion 7g. It has become. When the conical shape and the mortar shape are combined, the holding magnet portion 7 g and the magnetic material portion 8 g are attracted to each other in a straight line.

Further, as shown in FIGS. 9B and 9C, the magnetic force of the magnet 7g1 and the magnetic material 8g1 attracts the magnetic material portion 8g to the holding magnet portion 7g, so that the conical shape of the magnetic material portion 8g is maintained. It slides in the conical shape of the magnet part 7 g. As a result, the holding magnet portion 7 g and the magnetic material portion 8 g are fitted so that the central axes are aligned with each other.

Here, a method of fixing the holding magnet portion 7g and the rod-shaped portion 7x in the drawer tool 7 will be described. 10 (a) to 10 (e) are schematic views illustrating an example of fixing the holding magnet portion 7g and the rod-shaped portion 7x. In the example shown in FIG. 10A, the adhesive member 7a is used for fixing. In the example shown in FIG. 10B, pressure is applied to the holding magnet portion 7g, and the press-fitting portion 7b is pushed (press-fitted) into the rod-shaped portion 7x to fix it. In the example shown in FIG. 10 (c), the holding magnet portion 7g and the rod-shaped portion 7x are combined and fixed by using the concave-convex shape matching portion 7c. In the example shown in FIG. 10D, the screwed portion (male screw) 7d of the holding magnet portion 7g is inserted into the screwed portion (female screw) 7d of the rod-shaped portion 7x and fixed. In the example shown in FIG. 10 (e), a cover member 7e made of metal or the like is used to cover and fix the cover member 7e. When a non-magnetic material is used as the cover member, a space is created between the holding magnet portion 7 g and the magnetic material portion 8 g depending on the thickness of the non-magnetic material, and the attractive force of the magnet is reduced. Therefore, it is preferable to make the end face as thin as possible. Specifically, the thickness is preferably 1 mm or less, preferably 0.15 mm or less.

Further, a difference may be provided between the thickness of the end face and the thickness of the side surface of the cover member so that the cover member can be easily sucked straight. For example, if the thickness of the end face is halved from the thickness of the side surface, the adsorption strength is improved by about 30%. Therefore, the thickness of the end surface of the cover member is preferably half or less of the thickness of the side surface. Further, in order to stabilize the magnetic force in the end face direction, an elastic material such as a spring may be put inside the cover member. By inserting an elastic body on the rod-shaped portion side of the holding magnet portion 7g and pressing the holding magnet portion 7g against the end face side, the position of the holding magnet portion 7g does not shift inside the cover member, and the magnetic force in the end face direction is stabilized.

Further, each example of FIGS. 10A to 10E may be combined. These are the same in other embodiments.

[Embodiment 3]
FIG. 11 is a schematic view showing a schematic configuration of an auxiliary tool set according to a third embodiment of the present invention, and illustrates a state in which 8 g of a magnetic material portion is attracted to 7 g of a holding magnet portion. FIG. 11A shows the appearance of the holding magnet portion 7g and the magnetic material portion 8g before adsorption, and FIG. 11B shows a cross section of the holding magnet portion 7g and the magnetic material portion 8g before adsorption, and FIG. 11C. ) And (d) show the cross sections of the holding magnet portion 7g and the magnetic material portion 8g after adsorption. Further, FIG. 11E is an enlarged cross-sectional view of the bearing portion 7g3 of the holding magnet portion 7g.

The difference between the third embodiment and the first embodiment is that the shapes of the ends of the holding magnet portion 7 g and the magnetic body portion 8 g are spherical and spherical recessed shapes instead of the uneven shape. ..

As shown in FIG. 11, in the holding magnet portion 7g, the bearing portion 7g3 facing the magnetic body portion 8g has a spherical recess shape, while the magnetic body portion 8g has a shaft facing the holding magnet portion 7g. The portion 8g1a has a spherical shape. By combining the spherical shape and the hollow shape of the spherical shape, the holding magnet portion 7 g and the magnetic material portion 8 g are attracted to each other in a straight line.

Further, as shown in FIG. 11D, the shaft portion 8g1a can be fitted into the bearing portion 7g3 and rotated like a joint. As a result, even when the magnetic material portion 8g is obliquely attracted to the holding magnet portion 7g, when they enter the trocca 31, they hit the opening of the trocca 31 and are attracted in a straight line.

Further, as shown in FIG. 11E, a tapered inclined portion 7g4 may be provided at the bearing port of the bearing portion 7g3 in order to facilitate fitting the shaft portion 8g1a into the bearing portion 7g3.

In the second embodiment, the holding magnet portion 7g does not have to be a magnet, and the magnetic material 8g1 of the magnetic material portion 8g does not have to be a magnetic material. In short, in the second embodiment, the holding magnet portion 7g and the magnetic body portion 8g are formed by the shapes of the bearing portion 7g3 of the holding magnet portion 7g and the shaft portion 8g1a of the magnetic body portion 8g without using the magnetic force. Can be aligned and adsorbed.

[Embodiment 4]
FIG. 12 is a schematic view showing a schematic configuration of the auxiliary tool set according to the fourth embodiment of the present invention, and illustrates how the magnetic material portion 8 g is attracted to the holding magnet portion 7 g. FIG. 12A shows the appearance of the holding magnet portion 7g and the magnetic material portion 8g before adsorption, and FIG. 12B shows a cross section of the holding magnet portion 7g and the magnetic material portion 8g before adsorption, and FIG. 12C. ) Indicates the cross section of the holding magnet portion 7 g and the magnetic material portion 8 g after adsorption.

The difference between the fourth embodiment and the first embodiment is that the shapes of the ends of the holding magnet portion 7 g and the magnetic body portion 8 g are hemispherical and hemispherical recessed shapes instead of the uneven shape. ..

As shown in FIG. 12, in the holding magnet portion 7g, the bearing portion 7g3 facing the magnetic body portion 8g has a hemispherical recess shape, while the magnetic body portion 8g has a shaft facing the holding magnet portion 7g. The portion 8g1a has a hemispherical shape. By combining the hemispherical shape and the hemispherical recessed shape, the holding magnet portion 7 g and the magnetic material portion 8 g are attracted to each other in a straight line.

Further, as shown in FIG. 12C, the shaft portion 8g1a can be fitted into the bearing portion 7g3 and rotated like a joint. As a result, even when the magnetic material portion 8g is obliquely attracted to the holding magnet portion 7g, when they enter the trocca 31, they hit the opening of the trocca 31 and are attracted in a straight line.

[Embodiment 5]
FIG. 13 is a schematic view showing a schematic configuration of the auxiliary tool set according to the fifth embodiment of the present invention, and illustrates how the magnetic material portion 8g is attracted to the holding magnet portion 7g. FIG. 13A shows the appearance of the holding magnet portion 7g and the magnetic material portion 8g before adsorption, and FIG. 13B shows a cross section of the holding magnet portion 7g and the magnetic material portion 8g before adsorption, and FIG. 13C. ) Indicates the cross section of the holding magnet portion 7 g and the magnetic material portion 8 g after adsorption.

The difference between the fifth embodiment and the first embodiment is that the shapes of the ends of the holding magnet portion 7 g and the magnetic body portion 8 g are spherical and hemispherical recessed shapes instead of the uneven shape. Further, the difference between the fifth embodiment and the fourth embodiment is that the shape of each end of the holding magnet portion 7g is a hemispherical recess shape instead of the spherical recess shape.

As shown in FIG. 13, in the holding magnet portion 7g, the bearing portion 7g3 facing the magnetic body portion 8g has a hemispherical recess shape, while the magnetic body portion 8g has a shaft facing the holding magnet portion 7g. The portion 8g1a has a spherical shape. By combining the spherical and hemispherical recesses, the holding magnet portion 7 g and the magnetic material portion 8 g are attracted to each other in a straight line.

Further, as shown in FIG. 13C, the shaft portion 8g1a can be fitted into the bearing portion 7g3 and rotated like a joint. As a result, even when the magnetic material portion 8g is obliquely attracted to the holding magnet portion 7g, when they enter the trocca 31, they hit the opening of the trocca 31 and are attracted in a straight line.

[Embodiment 6]
14A and 14B are schematic views showing a schematic configuration of an auxiliary tool set according to a sixth embodiment of the present invention, and FIGS. 14A and 14B show cross sections of a holding magnet portion 7g and a magnetic material portion 8g before adsorption. Is.

The difference between the sixth embodiment and the first embodiment is that the shapes of the ends of the holding magnet portion 7 g and the magnetic body portion 8 g are spherical and hemispherical recessed shapes instead of the uneven shape. .. Further, no magnet is used for the bearing portion 7g3 of the holding magnet portion 7g.

As shown in FIG. 14A, by making the magnet 7g1 spherical, it means that the magnet is not used for the bearing portion 7g3. By doing so, the central portion of the bearing portion 7g3 has a relatively stronger magnetic force than the peripheral portion, that is, the attractive force becomes stronger. Therefore, when the magnetic material portion 8g is attracted to the holding magnet portion 7g, it tends toward the central portion of the bearing portion 7g3.

Further, as shown in FIG. 14B, by forming the magnet 7g1 into a columnar shape, the same effect as in the case shown in FIG. 14C can be obtained.

In the sixth embodiment, a non-magnetic material such as resin or SUS may be used for the magnet covering portion 7g2.

Further, as shown in FIG. 15, in the holding magnet portion 7g, a hole may be formed in the center of the end portion of the magnet coating portion 7g2 that covers the magnet 7g1 on the magnetic body portion 8g side. By doing so, it is possible to increase the adsorption force toward the center of the end portion on the magnetic material portion 8 g side. For example, as described above, the adsorption strength is about 50 at the end portion on the 8 g side of the magnetic material portion having a hole, as compared with the case where the end portion on the 8 g side of the magnetic material portion is a non-magnetic material having a thickness of 0.15 mm. %improves.

[Embodiment 7]
FIG. 16 is a schematic view showing a schematic configuration of the holding magnet portion 7g according to the seventh embodiment of the present invention. The holding magnet portion 7g according to the seventh embodiment is obtained by adding a magnetic body 7g5 arranged on the back surface of the magnet 7g1 to the holding magnet portion 7g according to the sixth embodiment.

The magnetic material 7g5 is generally called a yoke, and is for amplifying the attractive force of the magnet 7g1. As the magnetic material 7g5, a material having high magnetic permeability such as pure iron and permalloy can be used.

17 and 18 are schematic views showing an arrangement example of the magnetic material 7g5. 17A and 17B are examples in which the magnetic material 7g5 is arranged so as to cover the front end side of the magnet 7g1 from the side surface side, FIG. 17A is a front view, FIG. 17B is a cross-sectional view, and FIG. 17C is a perspective perspective view. Further, FIG. 18 is an example in which a groove is dug in the magnet 7g1 and the magnetic material 7g5 is embedded in the groove. FIG. 18A is a front view, FIG. 18B is a cross-sectional view, and FIG. 18C is a perspective perspective view.

According to the seventh embodiment, the attractive force of the magnet 7g1 can be amplified.

[Embodiment 8]
FIG. 19 is a schematic view showing a schematic configuration of the holding magnet portion 7g according to the eighth embodiment of the present invention. The holding magnet portion 7g according to the eighth embodiment is the holding magnet portion 7g according to the seventh embodiment in which an opening is provided in the bearing portion surface 7g6. By providing the opening on the surface 7g6 of the bearing portion, the magnet 7g1 is exposed from the opening, so that the magnetic force at that portion becomes stronger, that is, the attractive force increases.

19 (a) is a cross-sectional view of the holding magnet portion 7 g, and FIGS. 19 (b) to 19 (e) are a front view and a cross-sectional view showing each arrangement example of the openings.

In the example shown in FIG. 19B, an opening 7g7 is provided at the center of the bearing portion surface 7g6.

In the example shown in FIG. 19C, an opening 7g8 is provided at the center of the bearing surface 7g6 and around the center. Further, a magnetic material 7g9 is provided between the opening 7g8 in the central portion and the opening 7g8 in the periphery thereof. As a result, the magnetic force at the central portion is increased, so that the attractive force for the magnetic body portion 8g toward the central portion of the bearing portion surface 7g6 of the holding magnet portion 7g is enhanced. In the example shown in FIG. 19D, three openings 7g10 are provided in which the bearing portion surface 7g6 is arranged along the horizontal direction. In the example shown in FIG. 19E, the bearing portion surface 7g6 is provided with four openings 7g11.

[Embodiment 9]
FIG. 20 is a schematic view showing a schematic configuration of an auxiliary tool set according to a ninth embodiment of the present invention, and illustrates a state in which 8 g of a magnetic material portion is attracted to 7 g of a holding magnet portion. 20 (a) is a front view of the holding magnet portion 7g, FIG. 20 (b) is a cross-sectional view of the holding magnet portion 7g, and FIG. 20 (c) is a perspective perspective view of the holding magnet portion 7g.

In the ninth embodiment, the holding magnet portion 7g is provided with the magnetic body 7g5 which is a yoke shown in FIGS. 17 and 18. Further, the bearing portion is provided with an opening 7g12.

According to the ninth embodiment, the shaft portion 8g1a of the magnetic body portion 8g rotates up, down, left and right along the opening 7g12 with respect to the bearing portion of the holding magnet portion 7g. As a result, it is possible to secure the attractive force between the holding magnet portion 7 g and the magnetic material portion 8 g, and to bring the magnet portion into a state of being attracted in a straight line when it is pulled out from the trolley 31.

[Summary]
As described above, the auxiliary tool set according to the first aspect of the present invention is an auxiliary tool set used for installing the internal imaging device (camera unit 11) in the body, and the internal imaging device is connected to the auxiliary tool set. 1 Auxiliary tool (connector cap 8 with magnetic material), holding part (holding magnet part 7g) for holding the held part (magnetic material part 8g) provided on the first auxiliary tool, and connection for connecting to the holding part. A second part for pulling out from the body through the inside of a tubular device (trocca 31) whose end is introduced into the body while the held part is held by the holding part including the part (rod-shaped part 7x). The holding portion and the held portion are provided with an auxiliary tool (drawing tool 7), and the holding portion and the held portion have a structure in which the holding portion and the held portion are attracted to each other in a straight line, or the holding portion and the held portion. Has a structure that is aligned when entering the opening of the tubular device.

According to the above configuration, since the first auxiliary tool and the second auxiliary tool can enter the inside of the tubular device in a state where they are adsorbed side by side in a straight line, they are tubular while they are adsorbed. It can pass through the inside of the appliance.

Therefore, since the held portion of the first auxiliary tool does not separate from the holding portion of the second auxiliary tool, an auxiliary tool set for installing the internal imaging device in the body with excellent work efficiency is realized. can do.

The auxiliary tool set according to the second aspect of the present invention may have a configuration in which the held portion is held by the holding portion by a magnetic force in the first aspect.

In the auxiliary tool set according to the third aspect of the present invention, in the first or second aspect, one of the holding portion and the held portion contains a magnet and the other contains a magnetic material, and the holding portion contains the held portion. In the state of holding the portion, the end face of the magnet and the end face of the magnetic material may face each other.

In any one of the above aspects 1 to 3, the auxiliary tool set according to the fourth aspect of the present invention has the end face of the holding portion and the held portion in a state where the holding portion holds the held portion. It may be configured to be in contact with the end face of the.

In the auxiliary tool set according to the fifth aspect of the present invention, in the fourth aspect, when the holding portion holds the held portion, the end face of the holding portion and the end face of the held portion are mutually connected. The outer circumferences may be in contact with each other so as to overlap each other.

In any one of the above aspects 1 to 5, the auxiliary tool set according to the sixth aspect of the present invention is provided with a matching shape in which the end face of the holding portion and the end face of the held portion are mutually matched. It may be the configuration that is used.

In the auxiliary tool set according to the seventh aspect of the present invention, in the sixth aspect, the combined shape provided on each of the end face of the holding portion and the end face of the held portion has a convex shape on one side and a concave shape on the other side. It may be configured to be.

In the auxiliary tool set according to the eighth aspect of the present invention, in the sixth aspect, one of the combined shapes provided on the end face of the holding portion and the end face of the held portion has a conical shape and the other has a mortar shape. It may be configured to be.

In the auxiliary tool set according to the ninth aspect of the present invention, in the sixth aspect, one of the combined shapes provided on the end face of the holding portion and the end face of the held portion is spherical or hemispherical, and the other. May have a hemispherical recessed shape.

In the auxiliary tool set according to the tenth aspect of the present invention, in the third aspect, the magnet contained in one of the holding portion and the held portion may be covered with a non-magnetic material.

In the auxiliary tool set according to the eleventh aspect of the present invention, in the tenth aspect, the non-magnetic material may have an opening on the end face side of the magnetic material.

The auxiliary tool set according to the twelfth aspect of the present invention has a configuration in which a magnetic material which is a yoke for amplifying the magnetic force of the magnet is arranged around the magnet in the third, ten or eleventh aspects. Good.

The internal imaging device according to the thirteenth aspect of the present invention is an internal imaging device installed in the body using the first auxiliary tool and the second auxiliary tool, and is a first auxiliary tool to which the internal imaging device is connected. One end of the holding portion provided in the first auxiliary tool is introduced into the body in a state of being held by the holding portion, including a holding portion for holding the held portion and a connecting portion connected to the holding portion. A second auxiliary tool for pulling out from the body through the inside of the tubular device is provided, and the holding portion and the held portion have a structure in which the holding portion and the held portion are adsorbed side by side in a straight line. Or, it has a structure in which the holding portion and the held portion are aligned in a straight line when entering the opening of the tubular device.

In the internal imaging device according to the fourteenth aspect of the present invention, in the thirteenth aspect, the internal imaging device has one end connected to the first auxiliary tool and the other end connected to an imaging unit included in the internal imaging device. It may be configured to have a cable to be used.

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and the embodiments obtained by appropriately combining the technical means disclosed in the different embodiments. Is also included in the technical scope of the present invention. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment.

For example, in the above embodiment, the relationship between the holding magnet portion 7g and the magnetic material portion 8g (each shape, etc.) may be opposite to each other.

Further, instead of the camera unit 11, various medical devices may be connected to the magnetic connector cap 8.

1 In-vivo imaging system 7 Drawer (second auxiliary tool)
7a Adhesive member 7b Press-fitting part 7c Fitting part 7e Cover member 7g Holding magnet part (holding part)
7g1 Magnet 7g10, 7g11, 7g12, 7g7, 7g8 Opening 7g2 Magnet coating 7g3 Bearing part 7g4 Inclined part 7g5, 7g9, 8g1 Magnetic material 7g6 Bearing part surface 7x Rod-shaped part (connection part)
7y Grip 8 Connector cap with magnetic material (1st auxiliary tool)
8c Cap part 8g Magnetic part (held part)
8g1a Shaft 8g2 Magnetic coating 11 Camera unit (internal imaging device)
12 Camera side cable (cable)
13 Support tube 13x Troller connection 13y Convex joint 15a Camera side cable connector 15b Device side cable connector 16 Device side cable 17 Camera unit control device 18, 118 Display 31 Trocker (tubular device)
32a, 32b, 32c Trocca 33a, 33b Forceps 34 Endoscope 41 Abdominal wall 42 Organ 48 Stopper 117 Endoscope control device

Claims (7)

An auxiliary tool set used to install an in-vivo imaging device inside the body.
The first auxiliary tool to which the above-mentioned internal imaging device is connected, and
A holding portion for holding the held portion provided on the first auxiliary tool and a connecting portion connected to the holding portion are included, and one end thereof is inside the body while the held portion is held by the holding portion. It is equipped with a second auxiliary tool for pulling out of the body through the inside of the introduced tubular device.
The holding part and the held part
When the holding portion and the held portion enter the opening of the tubular device from the state where the held portion is diagonally held by the holding portion in the body, the holding portion and the held portion are straightened. It has a structure in which the held portion rotates with respect to the holding portion so as to be lined up on a line.
Each of the end face of the holding portion and the end face of the held portion is provided with a matching shape that allows the holding portion and the held portion to be combined.
The篏合shape provided on each end face and the end face of the held portion of the holding portion, one is a spherical or hemispherical shape and the other is shaped depressions spherical or hemispherical shape,
Structure is composed of the fitting shape of the above other of the sphere shape or a hemispherical shape of said one and said spherical or semi-spherical shape of the depression shape the held portion is rotated relative to the holding portion ,
One of the above fitting shapes is formed by the surface of a magnetic material,
The other of the fitting shapes is formed by the surface of the first holding magnet portion consisting only of the first magnet or the surface of the second holding magnet portion including the second magnet and the magnet coating portion covering the second magnet.
An auxiliary tool set characterized in that the held portion is held by the holding portion by the magnetic force of the magnetic material and the first magnet or the second magnet . The magnet covering portion, aid set according to claim 1, wherein the nonmagnetic der Rukoto. An auxiliary tool set used to install an in-vivo imaging device inside the body.
The first auxiliary tool to which the above-mentioned internal imaging device is connected, and
A holding portion for holding the held portion provided on the first auxiliary tool and a connecting portion connected to the holding portion are included, and one end thereof is inside the body while the held portion is held by the holding portion. It is equipped with a second auxiliary tool for pulling out of the body through the inside of the introduced tubular device.
The holding part and the held part
A structure in which the holding portion and the held portion are attracted to each other in a straight line.
Or
When the holding portion and the held portion enter the opening of the tubular device, the holding portion has a rotating structure that is aligned in a straight line.
One of the holding portion and the held portion contains a magnet and the other contains a magnetic material.
In the state where the holding portion holds the held portion, the end face of the magnet and the end face of the magnetic material face each other.
The magnet contained in one of the holding portion and the held portion is coated with a non-magnetic material.
The non-magnetic material has an opening on the end face side of the magnetic material, and has an opening.
An auxiliary tool set characterized in that the magnet is exposed from the opening. The auxiliary tool set according to claim 3 , wherein the holding portion rotates up, down, left, and right along the opening with respect to the held portion. The auxiliary tool set according to claim 3 or 4 , wherein a magnetic material which is a yoke for amplifying the magnetic force of the magnet is arranged around the magnet. An in-vivo imaging device installed in the body using the first auxiliary tool and the second auxiliary tool.
The first auxiliary tool to which the above-mentioned internal imaging device is connected, and
A holding portion for holding the held portion provided on the first auxiliary tool and a connecting portion connected to the holding portion are included, and one end thereof is inside the body while the held portion is held by the holding portion. It is equipped with a second auxiliary tool for pulling out of the body through the inside of the introduced tubular device.
When the holding portion and the held portion enter the opening of the tubular device from a state in which the held portion is obliquely held by the holding portion in the body, the holding portion and the held portion enter the opening of the tubular device. It has a structure in which the held portion rotates with respect to the holding portion so that the holding portion and the held portion are aligned in a straight line.
Each of the end face of the holding portion and the end face of the held portion is provided with a matching shape that allows the holding portion and the held portion to be combined.
The篏合shape provided on each end face and the end face of the held portion of the holding portion, one is a spherical or hemispherical shape and the other is shaped depressions spherical or hemispherical shape,
The structure held portion is rotated relative to the retaining portion is constituted by the fitting shape of the above other of the one and the spherical or hemispherical shape of the recess shape of the spherical or hemispherical shape,
One of the above fitting shapes is formed by the surface of a magnetic material,
The other of the fitting shapes is formed by the surface of the first holding magnet portion consisting only of the first magnet or the surface of the second holding magnet portion including the second magnet and the magnet coating portion covering the second magnet.
An in-vivo imaging device characterized in that the held portion is held by the holding portion by the magnetic force of the magnetic material and the first magnet or the second magnet . The internal body according to claim 6 , wherein one end of the internal imaging device is connected to the first auxiliary tool, and the other end has a cable connected to an imaging unit included in the internal imaging device. Imaging device.

Images