WO2018163538A1 - Auxiliary tool set and in-vivo imaging device - Google Patents

Abstract

The present invention includes: a magnetic-body-equipped connector cap (8) to which a camera unit (1) is connected; and a pulling tool (7) which has a magnet holding part (7g) for holding a magnetic body part (8g) provided on the magnetic-body-equipped connector cap (8) and a rod-like part (7x) which connects to the magnet holding part (7g), the pulling tool being used for pulling the magnetic body part (8g), when held by the magnet holding part (7g), to the outside of the body from the inside of the body through the inside of a trocar (31) one end of which has been introduced inside the body.

Description

Auxiliary device set and in-vivo imaging device

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

In recent years, minimally invasive surgery using a small-diameter needle or tube has been introduced in the medical field in order to reduce the burden on the patient associated with examinations and treatment procedures. Among these are, for example, endoscopic surgery in which treatment inside the body is performed without opening the patient. In endoscopic surgery, a treatment tool such as forceps and an endoscope are separately introduced into a patient's body cavity, and the operator observes an image of the distal end of the treatment tool inserted into the body cavity with an endoscope. It is captured in the field of view, 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 a body cavity through a tube punctured on a body wall (for example, an abdominal wall) in a patient's abdomen or the like. This cylinder is a tubular member called a so-called trocar.

The surgeon enlarges the image by bringing the endoscope closer to the organ and performs incision or suture of the organ, but at this time, the visual field of the surgeon becomes very narrow. For this reason, there is a demand for an apparatus 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 residues such as gauze).

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

Japanese Patent Gazette "Patent No. 6027275" Japanese Patent Gazette "Patent No. 6019253" Japanese Patent Gazette "Patent No. 4599474" Japanese Patent Gazette "Patent No. 4472727" Japanese Patent Publication “JP 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 diagonally attracted to the magnet of the drawer jig or shifted from the magnet of the drawer jig. It may be adsorbed.

In such an adsorption state, when trying to pull out the connector protection cap through the inside of the tubular device, when the magnet of the connector protection cap adsorbed to the magnet of the drawer jig enters the inside of the trocar, it is caught in the opening of the trocar, There was a problem that the magnet of the protective cap was detached from the magnet of the drawer 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 in-vivo imaging device having an imaging unit capable of being introduced into the body, excellent in work efficiency, and It is to propose an in-vivo imaging device.

An auxiliary tool set according to an aspect of the present invention is an auxiliary tool set used for installing an in-vivo imaging device in the body, and includes a first auxiliary tool to which the in-vivo imaging device is connected, and the first auxiliary tool. Of a tubular device having one end introduced into the body in a state in which the held portion is held by the holding portion, the holding portion holding the held portion provided in the holding portion, and a connecting portion connected to the holding portion. A second auxiliary tool for pulling out from the body to the outside through the inside, and the holding part and the held part have a structure in which the holding part and the held part are adsorbed in a straight line, or the holding When the portion and the held portion enter the opening of the tubular instrument, the portion and the held portion have a structure aligned in a straight line.

According to one aspect of the present invention, with the held portion of the first auxiliary tool held by the holding portion of the second auxiliary tool, one end is pulled out of the body through the inside of the tubular device introduced into the body. Thereby, the 1st auxiliary tool connected to the in-vivo imaging device can be easily derived outside the body, and work efficiency is improved.

It is a schematic diagram which shows the structure of an in-vivo imaging system. It is a schematic diagram which shows the in-body installation method of a camera unit. It is a schematic diagram which shows the use condition of an in-vivo imaging system. It is a conceptual diagram which shows the adsorption | suction state of a holding magnet part and a connector cap with a magnetic body at the time of adsorb | sucking a holding magnet part and a connector cap with a magnetic body in a body, (a) is a connector cap with a magnetic body, The holding magnet part 7 is shown in a state where it is adsorbed in a straight line, (b) shows the state in which the connector cap with magnetic material is adsorbed obliquely to the holding magnet part, and (c) shows the holding with the connector cap with magnetic material. Although the magnet portion 7 is arranged in a straight line, the connector cap with magnetic body and the holding magnet portion are in a shifted state and attracted. (A) is a conceptual diagram showing a structure in which a holding magnet portion and a connector cap with a magnetic body are securely aligned and adsorbed, and (b) is a diagram showing the holding magnet portion and the connector cap with a magnetic body entering the opening of the trocar. It is a conceptual diagram which shows the structure on a line on the occasion. It is a schematic diagram which shows schematic structure of the auxiliary tool set which concerns on Embodiment 1. FIG. It is a schematic diagram explaining a magnetic body part adsorbing | sucking to a holding magnet part, (a) shows the external appearance of the holding magnet part and magnetic body part before adsorption | suction, (b) is the holding magnet part and magnetism before adsorption | suction. The cross section of a body part is shown, (c) shows the cross section of the holding magnet part and magnetic body part after adsorption | suction. It is a conceptual diagram which shows the direction of the magnetic pole of the magnet of a holding magnet part, (a) is the direction which goes to the magnetic body part side from the holding magnet part side, (b) is the direction which goes to the holding magnet part side from the magnetic body part side. It is shown. It is a schematic diagram which shows schematic structure of the auxiliary tool set which concerns on Embodiment 2, and demonstrates a mode that a magnetic body part adsorb | sucks to a holding magnet part. (A) shows the external appearance of the holding magnet part and the magnetic part before adsorption, (b) shows the cross section of the holding magnet part and the magnetic part before adsorption, and (c) shows the holding magnet part and the magnetic part in the adsorption process. The cross section of a body part is shown, (d) shows the cross section of the holding magnet part and magnetic body part after adsorption | suction. (A)-(e) is a schematic diagram explaining the example of fixation of a holding magnet part and a rod-shaped part. It is a schematic diagram which shows schematic structure of the auxiliary tool set which concerns on Embodiment 3, and demonstrates a mode that a magnetic body part adsorb | sucks to a holding magnet part. (A) shows the external appearance of the holding magnet part and magnetic body part before adsorption, (b) shows the cross section of the holding magnet part and magnetic body part before adsorption, (c) and (d) are the holding parts after adsorption. The cross section of a magnet part and a magnetic body part is shown, (e) shows the expanded cross section of the bearing part of a holding magnet part. It is a schematic diagram which shows schematic structure of the auxiliary tool set which concerns on Embodiment 4, and demonstrates a mode that a magnetic body part adsorb | sucks to a holding magnet part. (A) shows the external appearance of the holding magnet part and magnetic part before adsorption, (b) shows the cross section of the holding magnet part and magnetic part before adsorption, and (c) shows the holding magnet part and magnetism after adsorption. The cross section of a body part is shown. It is a schematic diagram which shows schematic structure of the auxiliary tool set which concerns on Embodiment 5, and demonstrates a mode that a magnetic body part adsorb | sucks to a holding magnet part. (A) shows the external appearance of the holding magnet part and magnetic part before adsorption, (b) shows the cross section of the holding magnet part and magnetic part before adsorption, and (c) shows the holding magnet part and magnetism after adsorption. The cross section of a body part is shown. (A) And (b) is a schematic diagram which shows schematic structure of the auxiliary tool set which concerns on Embodiment 6, and shows the cross section of the holding magnet part and magnetic body part before adsorption | 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 magnetic body part before adsorption | suction. 10 is a schematic diagram showing a schematic configuration of a holding magnet portion 7g according to Embodiment 7. FIG. It is the example which has arrange | positioned the magnetic body so that the front end side may be covered from the side surface side of a magnet, (a) is a front view, (b) is sectional drawing, (c) is a perspective view. It is the example which dug a groove | channel in the magnet and embedded the magnetic body in the groove | channel, (a) is a front view, (b) is sectional drawing, (c) is a perspective perspective view. FIG. 9 is a schematic diagram showing a schematic configuration of a holding magnet unit according to Embodiment 8, (a) is a cross-sectional view of the holding magnet unit, and (b) to (e) are front views showing examples of arrangement of openings, and It is sectional drawing. It is a schematic diagram which shows schematic structure of the auxiliary tool set which concerns on Embodiment 9, and demonstrates a mode that a magnetic body part adsorb | sucks to a holding magnet part. (A) is a front view of a holding magnet part, (b) is sectional drawing of a holding magnet part, (c) is a see-through | perspective perspective view of a holding magnet part.

Embodiments of the present invention will be described with reference to FIGS. 1 to 20 as follows.

(In-vivo imaging system)
FIG. 1 is a schematic diagram illustrating a configuration of the in-vivo imaging system of the first embodiment. As shown in FIG. 1, the in-vivo 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 (in-vivo imaging device) introduced into the body. A support tube 13 having a trocar connection portion 13x used for connection with the trocar 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.

The camera side cable 12 has a convex camera side cable connector 15 a 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. A device-side cable connector 15b is provided. 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 imaging unit of the camera unit 11.

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

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

Here, since a wired system 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 reduced in size by supplying power from the outside. Accordingly, the downsizing can reduce the damage when the camera unit 11 is introduced into the body, and thus has the effect of improving the low 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. For this reason, the device side cable connector 15b that comes into contact with the device side cable connector 15b on the device side cable connector 15b side that is touched with a clean hand needs to be kept clean. In consideration of repeated use, the device-side cable 16 preferably has a structure that can be cleaned by autoclave sterilization, EOG sterilization, or the like.

Although not shown, an intermediate cable may be further provided between the camera side cable 12 and the device side cable 16. By providing the intermediate cable, the thickness of the cable can be changed step by step from the small camera side cable 12 to the device side cable 16, and the use of a small diameter cable with a relatively low transmission speed can be minimized. Can be limited. Thereby, high-speed transmission is 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.

Also, by using an intermediate cable, there is a special effect that the clean field and the unclean field can be effectively separated at the time of surgery. In other words, 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 the handling at the time of installation. Use an intermediate cable that has been sterilized in advance. By doing in this way, fitting with the camera side cable connector 15a and the camera side connector of an intermediate | middle cable can be performed in a clean field, and cleanliness can be maintained. On the other hand, the device-side connector of the intermediate cable is mated with the device-side cable connector 15b of the device-side cable 16 in the unclean field and becomes unclean, and is treated as a unclean device after the fitting. Therefore, it can be completely separated from the clean instrument side.

Also, by using an intermediate cable to divide the range of the clean field, the range that requires durability against sterilization, etc. is up to the device connector on 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 sterility. In this case, the device-side cable 16 does not need to have sterilization resistance, and a cable and a connector with improved transmission performance can be used. The intermediate cable may be further divided into several pieces.

In addition, by gradually increasing the thickness of the cable and the connector, when the cables are connected to each other, the trolley 31 is caught by the thickened portion. It can be prevented from passing into the body. In that case, it is desirable that the connector connected to the camera-side cable connector 15 a has such a thickness as to be caught by the trocar 31.

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

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

The magnetic body that is not a magnet is used as the magnetic body of the connector cap 8 with a magnetic body. By so doing, the connector cap 8 with a magnetic body will not be caught arbitrarily by another metal treatment instrument, and work efficiency will be improved.

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

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

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

Next, as shown in FIGS. 2 (d) and 2 (e), the drawer tool 7 is removed from the trocar 31 with the magnetic material connector cap 8 adhered to the holding magnet portion 7 g provided at the tip of the drawer tool 7. Pull out. Thereby, the camera side cable connector covered with the connector cap 8 with the magnetic body is led out of the body. At this time, the camera unit 11 (its gripping portion) is held by the forceps 33a.

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

Next, as shown in FIG. 2 (g), the operator further pulls up the camera side cable 12 and the camera unit 11 to insert one end of the support tube 13 into the end of the trocar 31 inside the body, The camera unit 11 is fitted into the other end. As a result, the operator connects one end of the support tube 13 and the inner end of the trocar 31, joins the other end and the camera unit 11, and maintains the tension of the camera-side cable 12. The camera side cable 12 is stopped on the abdominal wall 41 or the like.

When the camera-side cable connector covered with the magnetic material connector cap 8 is pulled out of the body using the drawer 7, if the support tube 13 is in the vicinity of the trocar 31, the magnetic material connector cap 8 passes through the trocar 31. Before the operation is performed (before the operator grasps the magnetic material-equipped connector cap 8), the support tube 13 enters the opening of the trocar 31. For this reason, it is possible that the connector cap 8 with a magnetic body will separate | separate from the holding magnet part 7g by 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, the support tube 13 enters the opening of the trocar 31 after the connector cap 8 with the magnetic body passes through the trocar 31 (after the operator grasps the connector cap 8 with the magnetic body). 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, and the camera side cable 12 and the device side cable 16 are connected. As a result, the local image of the treatment section is displayed on the display 118 by the endoscope control device 117, and the entire image inside the organ 42 captured 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 holding the gripping portion of the camera unit 11 in the body with the forceps 33a, and operates the forceps 33b to operate the support tube. 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 trocar 32b. At this time, the connector 15a is once returned to the body through the trocar 31 and then pulled out of the body through the trocar 32a or 32b.

(Holding magnet part 7g and connector cap 8 with magnetic body)
FIG. 4 is a conceptual diagram showing an attracting state between the holding magnet portion 7g and the magnetic substance connector cap 8 when the holding magnet portion 7g and the magnetic substance connector cap 8 are attracted in the body. ) Shows a state in which the connector cap 8 with magnetic material and the holding magnet portion 7g are adsorbed in a straight line, and (b) shows a state in which the connector cap 8 with magnetic material is adsorbed diagonally to the holding magnet portion 7g. (C) shows a state in which the connector cap 8 with magnetic material and the holding magnet portion 7g are offset and attracted, although the connector cap 8 with magnetic material and the holding magnet portion 7g are aligned in a straight line.

FIG. 4 is a diagram for explaining the characteristic points of one embodiment of the present invention. Therefore, the structure and shape of the holding magnet portion 7g and the connector cap 8 with a magnetic body shown in FIG. Note that this is not related to one embodiment of the present invention.

As described with reference to FIGS. 2 (d) and 2 (e), the magnetic material connector cap 8 is attached in a state where the magnetic material connector cap 8 is bonded to the holding magnet portion 7 g provided at the tip of the drawer 7. The covered camera side cable connector is led out of the body.

What should be noted here is that when the holding magnet portion 7g and the magnetic material connector cap 8 enter the opening of the trocar 31 depending on the attracting state between the holding magnet portion 7g and the magnetic material connector cap 8, the holding magnet This is because the connector cap 8 with a magnetic body adsorbed on the portion 7g may be caught in the opening of the trocar 31 and the connector cap 8 with a magnetic body may be detached from the holding magnet portion 7g.

Specifically, as shown in FIG. 4A, if the connector cap 8 with a magnetic body and the holding magnet portion 7g are adsorbed in a straight line, they can enter the inside of the trocar 31. It can pass through the inside of the linear trocar 31 with both adsorbed.

On the other hand, as shown in FIG. 4B, in the state where the connector cap 8 with the magnetic body is attracted to the holding magnet portion 7g at an angle, it passes through the inside of the linear trocar 31 with both of them adsorbed. The connector cap 8 with a magnetic body will detach | leave from the holding magnet part 7g. Even if the connector cap 8 with magnetic body and the holding magnet portion 7g shown in FIG. 4 (c) are deviated and attracted, the magnet from the holding magnet portion 7g is magnetic as in the state shown in FIG. 4 (b). The body-attached connector cap 8 is detached.

In the present invention, when the holding magnet portion 7g and the connector cap 8 with a magnetic body are attracted in the body, the work efficiency is achieved by attracting the holding magnet portion 7g and the magnetic body-attached connector cap 8 with magnetic force. It was considered that there was a limit to avoiding the removal of the body-attached connector cap 8. Therefore, from another viewpoint, many studies have been made as to whether or not the detachment of the connector cap 8 with a magnetic body from the holding magnet portion 7g can be avoided. As a result, by devising the shape of each of the holding magnet portion 7g and the connector cap 8 with magnetic material, it is possible to reliably avoid the detachment of the connector cap 8 with magnetic material from the holding magnet portion 7g, which has never been achieved so far. Has been realized, and has led to the completion of the invention.

That is, according to one aspect of the present invention, a structure in which the holding magnet portion 7g and the connector cap 8 with a magnetic body are securely attached in a straight line and / or the holding magnet portion 7g and the connector cap 8 with a magnetic body are mounted on the trocar. When entering the opening of 31, it is provided with the structure arranged in a straight line.

FIG. 5 is a conceptual diagram for explaining the two structures described above. FIG. 5A is a structure in which the holding magnet portion 7g and the connector cap 8 with a magnetic body are reliably adsorbed in a straight line (hereinafter referred to as an adsorbing structure A). (B) shows a structure (hereinafter referred to as an adsorption structure B) that is aligned in a straight line when the holding magnet part 7g and the connector cap 8 with a magnetic body enter the opening of the trocar 31. It is.

Depending on the adsorption structure A shown in FIG. 5 (a), the holding magnet portion 7g and the connector cap 8 with a magnetic body are adsorbed only in a state of being aligned in a straight line, or are aligned in a straight line in the adsorption process. . Further, depending on the attracting structure B shown in FIG. 5B, the holding magnet portion 7 g and the magnetic substance-equipped connector cap 8 are aligned in a straight line when they enter the opening of the trocar 31.

In addition, it is preferable that the diameter of the holding magnet portion 7g and the connector cap 8 with a magnetic body is reduced in order to achieve minimal invasiveness. Specifically, the diameter is desirably 3 mm or less. The camera-side cable 12 is led out of the body through the trocar 31 with the magnetic-material connector cap 8 covered, so the diameter of the camera-side cable 12 is the same as that of the magnetic-material connector cap 8. Needless to say, it is desirable that the diameter is equal to or smaller than the diameter. These also apply to the following embodiments of the present invention.

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

Embodiment 1
FIG. 6 is a schematic diagram illustrating a schematic configuration of the auxiliary tool set according to the first embodiment of the present invention. As shown in FIG. 6, the auxiliary tool set according to Embodiment 1 includes a connector cap 8 with 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 magnetic substance-attached connector cap 8 functions as a waterproof cap of the connector 15a shown in FIG. 1, and includes a cap part 8c and a magnetic part 8g (held part) provided at the tip of the cap part 8c. The cap portion 8c has a concave shape corresponding to the shape of the connector 15a, and the connector 15a is fitted and attached to the concave portion.

The drawing tool 7 is provided at one end, and includes a holding magnet portion 7g (holding portion) for bonding the connector cap 8 with a magnetic body, a rod-like portion 7x (connecting portion), and a gripping portion 7y provided at the other end. Instead of the rod-shaped portion 7x, a wire (connection portion) in which a holding magnet portion 7g is provided at one end and a gripping portion 7y is provided at the other end may be used. The rod-like portion 7x of the drawer 7 is preferably set to have a diameter equal to or smaller than the diameter of the holding magnet portion 7g in order to pass the trocar 31. The same applies to other embodiments.

FIG. 7 is a schematic diagram for explaining how the magnetic body portion 8g is attracted to the holding magnet portion 7g. FIG. 7A shows the appearance of the holding magnet portion 7g and the magnetic body portion 8g before being attracted, and FIG. The cross section of the holding magnet part 7g and the magnetic body part 8g before adsorption | suction is shown, (c) shows the cross section of the holding magnet part 7g and the magnetic body part 8g after adsorption | suction.

The holding magnet portion 7g includes a magnet 7g1 and a magnet covering portion 7g2 that covers the magnet 7g1. The magnetic body portion 8g includes a magnetic body 8g1 and a magnetic body covering portion 8g2 that covers the magnetic body 8g1.

As shown in FIG. 7, the holding magnet portion 7g has a concave shape at the end facing the magnetic body portion 8g, while the magnetic body portion 8g has a convex shape at the end facing the holding magnet portion 7g. It has become. By combining these concavo-convex shapes, the holding magnet portion 7g and the magnetic body portion 8g are attracted in a straight line.

The assisting tool set according to the first embodiment is based on a combination of concave and convex shapes that are completely fitted, and the holding magnet portion 7g and the magnetic body portion 8g are reliably attracted in a straight line. In addition, what is necessary is just to process the above-mentioned uneven | corrugated shape according to the shape of the above-mentioned edge part of the magnetic body part 8g according to the shape of the above-mentioned edge part of the holding magnet part 7g.

According to the auxiliary tool set according to the first embodiment, since the concave and convex shapes of the holding magnet portion 7g and the magnetic body portion 8g are meshed only in a straight line, the central axes of both are shifted when being pulled out from the trocar 31. There is no possibility of being pulled out, and it becomes possible to pull out from the trocar 31 reliably.

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 to the magnetic body portion 8g side (FIG. 8A), or the magnetic body portion 8g. This is the direction from the side toward the holding magnet part 7g (FIG. 8B).

Further, in the holding magnet portion 7g, the magnet covering portion 7g2 that covers the magnet 7g1 can be made of a magnetic material, a non-magnetic material, or a coating material. It is desirable to use a biocompatible material as the coating material. Specifically, coating with a polymer such as parylene, film formation with a material such as DLC (Diamond-like-carbon), or applying a drug such as heparin or xylocaine can be considered. In other embodiments, it is conceivable to use the same coating material.

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

[Embodiment 2]
FIG. 9 is a schematic diagram illustrating a schematic configuration of the auxiliary tool set according to the second embodiment of the present invention, and illustrates how the magnetic body portion 8g is attracted to the holding magnet portion 7g. 9A shows the external appearance of the holding magnet portion 7g and the magnetic body portion 8g before the adsorption, and FIG. 9B shows a cross section of the holding magnet portion 7g and the magnetic body portion 8g before the adsorption. ) Shows a cross section of the holding magnet portion 7g and the magnetic body portion 8g in the adsorption process, and FIG. 9D shows a cross section of the holding magnet portion 7g and the magnetic body portion 8g after the adsorption.

Embodiment 2 is different from Embodiment 1 in that the shape of each end of the holding magnet portion 7g and the magnetic body portion 8g is a conical shape and a mortar shape instead of an uneven shape.

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

Further, as shown in FIGS. 9B and 9C, the magnetic body portion 8g is attracted to the holding magnet portion 7g by the magnetic force of the magnet 7g1 and the magnetic body 8g1, thereby maintaining the conical shape of the magnetic body portion 8g. It slides in the conical shape of the magnet part 7g. Thereby, the holding magnet portion 7g and the magnetic body portion 8g 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 7 will be described. FIGS. 10A to 10E are schematic views for explaining an example of fixing the holding magnet portion 7g and the rod-like portion 7x. In the example shown in FIG. 10A, fixing is performed using an adhesive member 7a. In the example shown in FIG. 10B, pressure is applied to the holding magnet portion 7g, and the press-fit portion 7b is pushed (press-fit) into the rod-like portion 7x to be fixed. In the example shown in FIG. 10C, the holding magnet portion 7g and the rod-like portion 7x are joined and fixed using the concave and convex joint portion 7c. In the example shown in FIG. 10D, the threaded portion (male screw) 7d of the holding magnet portion 7g is inserted into the threaded portion (female screw) 7d of the rod-shaped portion 7x and fixed. In the example shown in FIG. 10E, the cover member 7e made of metal or the like is used for covering and fixing. When a nonmagnetic material is used as the cover member, a space is formed between the holding magnet portion 7g and the magnetic material portion 8g depending on the thickness of the nonmagnetic 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 1 mm or less, preferably 0.15 mm or less.

In addition, a difference may be provided between the thickness of the end face of the cover member and the thickness of the side face so as to facilitate the straight suction. For example, if the thickness of the end face is half that of the side face, the adsorption strength is improved by about 30%. Therefore, it is preferable that the thickness of the end face of the cover member is not more than half the thickness of the side face. Furthermore, an elastic material such as a spring may be placed inside the cover member in order to stabilize the magnetic force toward the end face. By inserting an elastic body on the rod-shaped part side of the holding magnet part 7g and pressing the holding magnet part 7g toward the end face side, the position of the holding magnet part 7g does not shift inside the cover member, and the magnetic force in the end face direction is stabilized.

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

[Embodiment 3]
FIG. 11 is a schematic diagram illustrating a schematic configuration of the auxiliary tool set according to the third embodiment of the present invention, and illustrates how the magnetic body portion 8g is attracted to the holding magnet portion 7g. FIG. 11A shows the external appearance of the holding magnet portion 7g and the magnetic body portion 8g before the adsorption, and FIG. 11B shows the cross section of the holding magnet portion 7g and the magnetic body portion 8g before the adsorption. ) And (d) show cross sections of the holding magnet portion 7g and the magnetic body portion 8g after adsorption. Moreover, FIG.11 (e) is an expanded sectional view of the bearing part 7g3 of the holding magnet part 7g.

The third embodiment is different from the first embodiment in that the shape of each end of the holding magnet portion 7g and the magnetic body portion 8g is a spherical shape and a hollow shape of a spherical shape, instead of an 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 part 8g1a has a spherical shape. When the spherical shape and the concave shape of the spherical shape are combined, the holding magnet portion 7g and the magnetic body portion 8g are attracted in a straight line.

Also, as shown in FIG. 11 (d), the shaft portion 8g1a can be fitted into the bearing portion 7g3 and rotated like a joint. Thereby, even when the magnetic body portion 8g is attracted diagonally to the holding magnet portion 7g, when they enter the trocar 31, they hit the opening of the trocar 31 and are in a state of being attracted side by side in a straight line.

Furthermore, as shown in FIG. 11 (e), in order to easily fit the shaft portion 8g1a into the bearing portion 7g3, a tapered inclined portion 7g4 may be provided at the bearing opening of the bearing portion 7g3.

In the second embodiment, the holding magnet portion 7g may not be a magnet, and the magnetic body 8g1 of the magnetic body portion 8g may not be a magnetic body. In short, the second embodiment does not use a magnetic force, and the holding magnet portion 7g and the magnetic body portion 8g without using a magnetic force, depending on the shapes of the bearing portion 7g3 of the holding magnet portion 7g and the shaft portion 8g1a of the magnetic body portion 8g. Can be adsorbed in a line.

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

The fourth embodiment is different from the first embodiment in that the shape of each end portion of the holding magnet portion 7g and the magnetic body portion 8g is a concave shape of a hemispherical shape and a hemispherical shape instead of an 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 concave shape, while the magnetic body portion 8g has a shaft facing the holding magnet portion 7g. The part 8g1a has a hemispherical shape. By combining the hemispherical shape and the concave shape of the hemispherical shape, the holding magnet portion 7g and the magnetic body portion 8g are attracted in a straight line.

Also, as shown in FIG. 12 (c), the shaft portion 8g1a can be fitted into the bearing portion 7g3 and rotated like a joint. Thereby, even when the magnetic body portion 8g is attracted diagonally to the holding magnet portion 7g, when they enter the trocar 31, they hit the opening of the trocar 31 and are in a state of being attracted side by side in a straight line.

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

Embodiment 5 differs from Embodiment 1 in that the shapes of the end portions of the holding magnet portion 7g and the magnetic body portion 8g are spherical and hemispherical indentations instead of the irregular shapes. Further, the fifth embodiment is different from the fourth embodiment in that the shape of each end portion of the holding magnet portion 7g is a hemispherical concave shape instead of a spherical concave 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 concave shape, while the magnetic body portion 8g has a shaft facing the holding magnet portion 7g. The part 8g1a has a spherical shape. By combining these spherical and hemispherical concave shapes, the holding magnet portion 7g and the magnetic body portion 8g are attracted in a straight line.

Further, as shown in FIG. 13C, the shaft portion 8g1a can be fitted into the bearing portion 7g3 and can be rotated like a joint. Thereby, even when the magnetic body portion 8g is attracted diagonally to the holding magnet portion 7g, when they enter the trocar 31, they hit the opening of the trocar 31 and are in a state of being attracted side by side in a straight line.

[Embodiment 6]
FIG. 14 is a schematic diagram showing a schematic configuration of an auxiliary tool set according to Embodiment 6 of the present invention, and (a) and (b) show cross sections of the holding magnet portion 7g and the magnetic body portion 8g before adsorption. It is.

The sixth embodiment is different from the first embodiment in that the shape of each end of the holding magnet portion 7g and the magnetic body portion 8g is a concave shape of a spherical shape and a hemispherical shape instead of an uneven shape. . Furthermore, no magnet is used for the bearing portion 7g3 of the holding magnet portion 7g.

As shown in FIG. 14 (a), when the magnet 7g1 is formed into a spherical shape, no magnet is used for the bearing portion 7g3. By doing so, the magnetic force of the center portion of the bearing portion 7g3 is relatively stronger than that of the peripheral portion, that is, the attractive force is increased. For this reason, when the magnetic body portion 8g is attracted to the holding magnet portion 7g, the magnetic body portion 8g moves toward the center portion of the bearing portion 7g3.

Also, as shown in FIG. 14 (b), by making the magnet 7g1 into a cylindrical shape, the same effect as in the case shown in FIG. 14 (c) can be obtained.

In the sixth embodiment, the magnet covering portion 7g2 may be made of a nonmagnetic material such as resin or SUS.

Further, as shown in FIG. 15, in the holding magnet portion 7g, a hole may be formed in the center of the end portion on the magnetic body portion 8g side of the magnet covering portion 7g2 covering the magnet 7g1. By doing this also, the attractive force toward the center of the end on the magnetic body 8g side can be increased. For example, as described above, compared with the case where the end portion on the magnetic body portion 8g side is a non-magnetic body having a thickness of 0.15 mm, the end portion on the magnetic body portion 8g side with a hole has an adsorption strength of about 50. %improves.

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

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

FIGS. 17 and 18 are schematic diagrams showing examples of arrangement of the magnetic body 7g5. FIG. 17 is an example in which the magnetic body 7g5 is arranged so as to cover the tip side from the side surface of the magnet 7g1, (a) is a front view, (b) is a cross-sectional view, and (c) is a perspective view. FIG. 18 shows an example in which a groove is dug in the magnet 7g1, and the magnetic body 7g5 is embedded in the groove, (a) is a front view, (b) is a cross-sectional view, and (c) is a perspective view.

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

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

FIG. 19A is a cross-sectional view of the holding magnet portion 7g, and FIGS. 19B to 19E are a front view and a cross-sectional view showing examples of arrangement of openings.

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

In the example shown in FIG. 19 (c), an opening 7g8 is provided in the center of the bearing surface 7g6 and in the vicinity thereof. Further, a magnetic body 7g9 is provided between the central opening 7g8 and the peripheral opening 7g8. As a result, the magnetic force at the center portion is increased, so that the attractive force for the magnetic body portion 8g to face the center portion of the bearing portion surface 7g6 of the holding magnet portion 7g is increased. In the example shown in FIG. 19D, three openings 7g10 are provided in which the bearing surface 7g6 is arranged along the horizontal direction. In the example shown in FIG. 19 (e), the bearing surface 7g6 is provided with four openings 7g11.

[Embodiment 9]
FIG. 20 is a schematic diagram illustrating a schematic configuration of the auxiliary tool set according to the ninth embodiment of the present invention, and illustrates how the magnetic body portion 8g is attracted to the holding magnet portion 7g. 20A is a front view of the holding magnet portion 7g, FIG. 20B is a sectional view of the holding magnet portion 7g, and FIG. 20C is a perspective view of the holding magnet portion 7g.

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

According to the ninth embodiment, the shaft portion 8g1a of the magnetic body portion 8g rotates vertically and horizontally along the opening portion 7g12 with respect to the bearing portion of the holding magnet portion 7g. Thereby, after securing the attractive force of the holding magnet part 7g and the magnetic body part 8g, when pulling out from the trocar 31, it can be made the state adsorbed along with a straight line.

[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 in-vivo imaging device (camera unit 11) in the body, and is connected to the in-vivo imaging device. 1 Auxiliary tool (connector cap 8 with magnetic body), a holding part (holding magnet part 7g) for holding a held part (magnetic body part 8g) provided in the first auxiliary tool, and a connection connected to the holding part A second portion for pulling out from the body through the inside of the tubular device (trocker 31) having one end introduced into the body in a state where the held portion is held by the holding portion. An auxiliary tool (drawer tool 7), and the holding part and the held part have a structure in which the holding part and the held part are adsorbed in a straight line, or the holding part and the held part. When entering the opening of the tubular instrument Having a structure aligned in a straight line.

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 in a straight line, they can be tubular while they are adsorbed. Can pass through the interior of the instrument.

Therefore, since the held part of the first auxiliary tool is not detached from the holding part of the second auxiliary tool, an auxiliary tool set for installing the in-vivo imaging device with excellent working efficiency is realized. can do.

The assisting tool set according to aspect 2 of the present invention may be configured such that, in aspect 1, the held part is held by the holding part by magnetic force.

The assisting device set according to aspect 3 of the present invention is the auxiliary device set according to aspect 1 or 2, wherein one of the holding part and the held part includes a magnet and the other includes a magnetic material, and the holding part is held by the held part. In the state which hold | maintained the part, the structure which the end surface of the said magnet and the end surface of the said magnetic body may face may be sufficient.

The assisting device set according to aspect 4 of the present invention is the auxiliary tool set according to any one of the above aspects 1 to 3, in the state where the holding part holds the held part, the end surface of the holding part and the held part The structure which contacts with the end surface of this may be sufficient.

The assisting tool set according to Aspect 5 of the present invention is the assisting tool set according to Aspect 4, in which the end face of the holding part and the end face of the held part are mutually in a state where the holding part holds the held part. The structure which is contacting so that outer periphery may overlap may be sufficient.

The auxiliary tool set according to Aspect 6 of the present invention is the auxiliary tool set according to any one of Aspects 1 to 5, wherein each of the end surface of the holding portion and the end surface of the held portion is provided with a mating shape that mates with each other. It may be a configuration.

The assisting tool set according to Aspect 7 of the present invention is the Auxiliary Tool Set according to Aspect 6, wherein one of the combined shapes provided on the end surface of the holding portion and the end surface of the held portion is a convex shape and the other is a concave shape. The structure which is may be sufficient.

The assisting tool set according to aspect 8 of the present invention is the above-described integrated shape provided on each of the end face of the holding part and the end face of the held part in aspect 6, wherein one is a conical shape and the other is a mortar shape. The structure which is may be sufficient.

The assisting device set according to aspect 9 of the present invention is the assisting device set according to aspect 6, wherein one of the combined shapes provided on the end surface of the holding portion and the end surface of the held portion is spherical or hemispherical, May be a hemispherical depression shape.

The assisting device set according to aspect 10 of the present invention may be configured such that, in aspect 3, the magnet included in one of the holding part and the held part is covered with a nonmagnetic material.

The assisting tool set according to aspect 11 of the present invention may be configured such that, in aspect 10, the non-magnetic body has an opening on the end face side of the magnetic body.

The auxiliary tool set according to aspect 12 of the present invention may be configured such that, in the above aspect 3, 10 or 11, a magnetic body that is a yoke that amplifies the magnetic force of the magnet is disposed around the magnet. Good.

An in-vivo imaging device according to aspect 13 of the present invention is an in-vivo imaging device installed in the body using a first auxiliary tool and a second auxiliary tool, the first auxiliary tool to which the in-vivo imaging device is connected, Including a holding portion for holding the held portion provided in the first auxiliary tool and a connection portion connected to the holding portion, one end is introduced into the body with the held portion held by the holding portion And a second auxiliary tool for pulling out from the body through the inside of the formed tubular instrument, and the holding part and the held part adsorb the holding part and the held part in a straight line. Or when the said holding | maintenance part and the said to-be-held part approach into opening of the said tubular instrument, it has a structure which aligns in a straight line.

In the in-vivo imaging device according to aspect 14 of the present invention, in the above-described aspect 13, the in-vivo imaging device has one end connected to the first auxiliary tool and the other end connected to an imaging unit included in the in-vivo imaging device. The structure which has a cable to be used may be sufficient.

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

For example, in the above embodiment, the relationship (respective shapes and the like) between the holding magnet portion 7g and the magnetic body portion 8g may be reversed.

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

1 In-vivo imaging system 7 Drawer (second aid)
7a Adhesive member 7b Press-fit portion 7c Joint portion 7e Cover member 7g Holding magnet portion (holding portion)
7g1 Magnet 7g10, 7g11, 7g12, 7g7, 7g8 Opening 7g2 Magnet coating 7g3 Bearing 7g4 Inclined 7g5, 7g9, 8g1 Magnetic body 7g6 Bearing surface 7x Rod (connection)
7y Grip part 8 Connector cap with magnetic body (first auxiliary tool)
8c Cap part 8g Magnetic body part (held part)
8g1a Shaft part 8g2 Magnetic body covering part 11 Camera unit (in-vivo imaging device)
12 Camera side cable (cable)
13 support tube 13x trocar connection part 13y convex joint part 15a camera side cable connector 15b equipment side cable connector 16 equipment side cable 17 camera unit control equipment 18, 118 display 31 trocar (tubular instrument)
32a, 32b, 32c Trocars 33a, 33b Forceps 34 Endoscope 41 Abdominal wall 42 Organ 48 Stopper 117 Endoscope control device

Claims (14)

An auxiliary tool set used to install an in-vivo imaging device in the body,
A first auxiliary tool to which the in-vivo imaging device is connected;
Including a holding part for holding the held part provided in the first auxiliary tool and a connection part connected to the holding part, one end is introduced into the body while the held part is held by the holding part A second auxiliary tool for pulling out from the body through the inside of the formed tubular device,
The holding part and the held part are
The structure in which the holding part and the held part are adsorbed in a straight line, or
An assisting device set having a structure in which the holding portion and the held portion are aligned in a straight line when entering the opening of the tubular instrument. The assisting device set according to claim 1, wherein the held portion is held by the holding portion by magnetic force. One of the holding part and the held part includes a magnet and the other includes a magnetic body. When the holding part holds the held part, the end face of the magnet and the end face of the magnetic substance are The assisting tool set according to claim 1 or 2, characterized by facing each other. The end surface of the holding portion and the end surface of the held portion are in contact with each other in a state where the holding portion holds the held portion. Auxiliary set. The end face of the holding part and the end face of the held part are in contact with each other so that their outer peripheries overlap in a state where the holding part holds the held part. 4. Auxiliary device set according to 4. The assisting tool set according to any one of claims 1 to 5, wherein each of an end face of the holding part and an end face of the held part is provided with a mating shape that mates with each other. The assisting tool set according to claim 6, wherein one of the combined shapes provided on the end surface of the holding portion and the end surface of the held portion is a convex shape and the other is a concave shape. The assisting tool set according to claim 6, wherein one of the combined shapes provided on the end surface of the holding portion and the end surface of the held portion is a conical shape and the other is a mortar shape. 7. The combined shape provided on each of the end surface of the holding portion and the end surface of the held portion is one of a spherical shape or a hemispherical shape, and the other is a concave shape of a hemispherical shape. The aid set described. The assisting tool set according to claim 3, wherein a magnet included in one of the holding part and the held part is covered with a non-magnetic material. The auxiliary tool set according to claim 10, wherein the non-magnetic body has an opening on an end face side of the magnetic body. The auxiliary tool set according to claim 3, 10 or 11, wherein a magnetic body which is a yoke for amplifying the magnetic force of the magnet is disposed around the magnet. An in-vivo imaging device installed in the body using a first auxiliary tool and a second auxiliary tool,
A first auxiliary tool to which the in-vivo imaging device is connected;
Including a holding portion for holding the held portion provided in the first auxiliary tool and a connection portion connected to the holding portion, one end is introduced into the body with the held portion held by the holding portion A second auxiliary tool for pulling out from the body through the inside of the formed tubular device,
The holding part and the held part are
The structure in which the holding part and the held part are adsorbed in a straight line, or
An in-vivo imaging device having a structure in which the holding portion and the held portion are aligned in a straight line when entering the opening of the tubular instrument. The in-vivo imaging device according to claim 13, further comprising: a cable having one end connected to the first auxiliary tool and the other end connected to an imaging unit included in the in-vivo imaging device. Imaging device.

Images