JP2006120531A - Battery device and endoscope device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent rust from being easily developed on a metal member, and to prevent a sliding force amount of a slide part from increasing and conducting resistance of an electrical contact part from degrading. <P>SOLUTION: Contact and separation between conducting contact plates 55 and 56 are carried out by executing a switch operation in response to change of a relative position between an operation part of an endoscope and a battery device, and the conducting contact plate 55 is slid by a slide block 59 in contact between the conducting contact plates 55 and 56 to make the connection surfaces of the conducting contact plates 55 and 56 rub each other, whereby rust is prevented from being easily developed on the contact part being the metal member. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a battery device and an endoscope device having battery means (hereinafter simply referred to as “battery”) used as a primary battery or a secondary battery.

  For example, a battery such as a conventional dry battery is housed in a battery housing case provided with a positive electrode and a negative electrode provided in a predetermined device, and is electrically connected via a conductive wire connected to the electrode and the electrode. The function execution means can be driven by supplying power to the load device as the function execution means for executing the predetermined function.

  However, in recent years, there may be a case where a battery having such a configuration is placed in an external environment in a pressurized steam state. As such a situation, there may be a case where sterilization is required when the battery is used, for example, for medical treatment on a subject. In such a case, in a configuration in which the battery is housed in a battery housing case that is generally used, such as a metal or plastic material such as stainless steel, steam from the outside has entered the battery, There is a possibility that rust is generated in the metal member, and the sliding force amount of the sliding portion is increased or the conduction resistance of the electrical contact portion is lowered. For example, in a medical endoscope apparatus shown in Patent Document 1 as a function execution apparatus, a battery is accommodated in a battery accommodation case, and a lamp as a load device is electrically connected to the battery so that power is supplied to the lamp. While being supplied, the connecting portion, for example, the connecting portion between the battery housing case and the lamp chamber case is sealed with an O-ring to form a watertight structure.

  In this endoscope apparatus, the emitted light from the lamp is guided to a light guide fiber or the like, and the guided illumination light is emitted from the illumination window on the front end side of the light unit, so that the test site of the subject is examined. By illuminating the inside of the organ such as the stomach and large intestine (inside the body cavity) and taking the reflected light into the endoscope device, observation by a doctor or a nurse was made possible.

JP-A-9-56672

  However, in the current medical treatment, for example, pressurized water vapor with high temperature and pressure is generated, and the endoscope apparatus is steam sterilized (autoclave sterilization) with this water vapor before being used for the subject. May occur. In this autoclave sterilization, for example, the endoscope apparatus is heated and sterilized with pressurized steam heated to 135 ° C. and pressurized to 2.2 atm for 20 minutes. Invades. That is, in the O-ring, vapor intrusion is completely prevented and internal watertightness cannot be maintained. As described above, rust is generated in the metal member, which increases the amount of sliding force of the sliding portion, There is a case where the conduction resistance of a typical contact portion is lowered.

  The present invention has been made in view of the above problems, and it is difficult for rust to occur in a metal member, and the sliding force amount of the sliding portion increases or the conduction resistance of the electrical contact portion decreases. It is an object of the present invention to provide a battery device and an endoscope device that can prevent the above-described problem.

  In order to solve the above-described problems and achieve the object, a battery device according to the present invention is provided inside a device for housing battery means, and an electrode portion for electrically connecting to the battery means; A first contact part connected to the electrode part; a function executing means operated by a power source supplied from the battery means; a second contact part connected to the function executing means; and the first contact point. Switching means for connecting or disconnecting the first contact portion and the second contact portion, and sliding means for sliding at least one of the connected first and second contact portions. And

  According to a second aspect of the present invention, the battery device according to the second aspect of the present invention further includes a mounting unit mounted on the predetermined target device, and the switching unit includes the battery device mounted on the mounting unit and the predetermined target. The first contact portion and the second contact portion are connected to or disconnected from each other in accordance with a change in the position relative to the apparatus, and the sliding means is connected to at least one of the contact portions at the time of the connection. The sliding is started and ended.

  According to a third aspect of the present invention, there is provided the battery device according to the first aspect, wherein the first contact portion and the second contact portion are electrically connected to each other with the first contact portion and the second contact portion being electrically connected. At least one of them is characterized in that it can reciprocate between a normal conducting position and a sliding position.

  An endoscope apparatus according to a fourth aspect of the present invention is provided in an apparatus for housing battery means, and is connected to the electrode section for electrically connecting to the battery means, and to the electrode section. A first contact portion; a function execution means that is operated by a power source supplied from the battery means; a second contact portion that is connected to the function execution means; the first contact portion; and the second contact point. Switching means for connecting to or disconnecting from the part, sliding means for sliding at least one of the connected first and second contact parts, and mounting means to be attached to the predetermined target device, And an endoscope operation unit as the predetermined target device.

  An endoscope apparatus according to a fifth aspect of the present invention is the endoscope according to the above invention, wherein the switching unit is configured to change a relative position between the battery device mounted by the mounting unit and the endoscope operation unit. Accordingly, the first contact portion and the second contact portion are connected or disconnected, and the sliding means starts and ends sliding of at least one of the contact portions during the connection. It is characterized by.

  An endoscope apparatus according to a sixth aspect of the present invention is the endoscope apparatus according to the above invention, wherein the first contact portion and the second contact portion are electrically connected in the battery device. At least one of the first contact portion and the second contact portion can reciprocate between a normal conductive position and a sliding position.

  In the battery device according to the present invention, the sliding means slides at least one of the first and second contact parts connected by the switching means in the connected state. The contact surfaces rub against each other, so that rust is hardly generated at the contact portion which is a metal member, and it is possible to prevent the conduction resistance of the electrical contact portion from being lowered.

  In the endoscope apparatus according to the present invention, at least one of the first and second contact portions connected by the switching means of the battery device attached to the endoscope operation portion is connected. Since the sliding means slides in the state, the contact surfaces of the contact parts rub against each other, and it is difficult for rust to occur in the contact parts that are metal members, and the conduction resistance of the electrical contact parts is reduced. There is an effect that it can be prevented.

  Hereinafter, embodiments of a battery device and an endoscope device according to the present invention will be described in detail with reference to FIGS. 1 to 14. The present invention is not limited to these embodiments, and various modifications can be made without departing from the scope of the present invention.

(Embodiment 1)
FIG. 1 is a perspective view showing an example of the configuration of a portable endoscope apparatus using a battery device according to the present invention. In the figure, an endoscope apparatus 1 includes a watertight endoscope 2 that prevents leakage and permeation of liquid, and a battery device 3 that is detachably attached to the endoscope 2 and electrically connected thereto. Has been. Further, a light guide cable (not shown) can be detachably attached to the endoscope 2 instead of the battery device 3.

  The endoscope 2 is provided with an eyepiece unit 21 provided at one end, an operation unit 22 provided on an attachment side to which the eyepiece unit 21 is attached, and the other end of the operation unit 22. And an elongated cylindrical insertion portion 23 to be inserted therein. A light guide base 22a protrudes from the side surface of the operation portion 22 on the attachment side, and the connection portion 31 of the battery device 3 is detachably connected. In addition, a bending operation lever 22b for performing a bending operation of the distal end of the insertion portion 23 and a suction button 22c for performing a suction operation protrude from the side surface of the operation unit 22 at different positions. Yes. A suction base 22d communicating with a suction channel (not shown) provided in the endoscope 2 protrudes from the side surface of the suction button 22c. For example, a tube is attached to the suction base 22d, and the suction base 22d is connected to the suction button 22c via the tube. By connecting to a predetermined suction device and appropriately operating the above-described suction button 22c, the liquid in the body cavity can be sucked and discharged through the insertion portion 23, the suction channel, and the suction base 22d.

  In addition, the operation unit 22 is provided with a grip portion 22e that is held by a doctor or the like in order to hold and fix the endoscope 2. In the operation portion 22, a forceps insertion port 22f for inserting forceps protrudes from the attachment side to which the insertion portion 23 is attached. The forceps insertion port 22f is normally closed with a forceps plug 22g. . Further, on the opposite side of the forceps insertion opening 22f, for example, a vent hole 22h is provided, and a water leak inspection of the endoscope 2 is performed by sending air into the endoscope 2 from the vent hole 22h. Is possible.

  The insertion portion 23 to be inserted into the subject includes a hard distal end portion 23a provided at the distal end, a bending portion 23b that performs a bending operation by operating the operation portion 22, and a flexible tube 23c having flexibility. These parts are configured to be continuous in a line.

  A light guide fiber (not shown) for guiding the illumination light emitted from the battery device 3 is housed inside the insertion portion 23. One end of the light guide fiber is bent inside the operation unit 22 and is fixed in the light guide base 22a. The other end of the light guide fiber is fixed to an illumination window 23 d provided at the distal end of the insertion portion 23. Therefore, the endoscope apparatus 1 can irradiate the illumination light emitted from the battery device 3 from the light guide base 22a through the light guide fiber to the outside through the illumination window 23d, and thereby the body cavity of the subject inserted therein The interior can be illuminated. A male screw portion 22i for connection is provided on the outer peripheral surface of the light guide base 22a.

  FIG. 2 is a diagram for explaining the external appearance of the operation unit 22 and the connection unit 31 of the battery device 3 shown in FIG. 1, and FIG. 3 is a diagram showing the overall configuration of the battery device shown in FIG. FIG. 4 is a cross-sectional view showing an example of the configuration of the AA cross section mainly including the lamp housing portion of the battery device. 2-4, the connection part 31 of the battery apparatus 3 has the connection ring 31a provided in the outer peripheral surface, and the connection ring 31a includes the female screw part 31b formed in the inner peripheral surface, and the female screw. And a screw cover 31c covering the outer peripheral surface of the portion 31b. The connection ring 31a is provided so as to surround the outer peripheral surface of the cylindrical connection base 31d, and the connection ring 31a is connected to the connection base 31d in such a manner that the movement in the longitudinal direction of the connection base 31d is restricted within a certain range. It is attached to the base 31d. The female screw portion 31b is configured to be screwed with a male screw portion 22i provided on the outer peripheral surface of the light guide base 22a.

  A watertight ring 31e is provided around the outer peripheral surface of the connection base 31d. When the connection portion 31 is connected to the light guide base 22a, the watertight ring 31e is connected to the inner periphery of the connection tube 22j of the light guide base 22a. It is in close contact with the surface. That is, by rotating the connection ring 31a of the battery device 3 in a predetermined direction and screwing the male screw portion 22i of the light guide base 22a and the female screw portion of the connection ring 31a, the light guide base 22a of the endoscope 2 is engaged. The connection ring 31a is screwed and fixed, and the connection cylinder 22j and the connection base 31d are brought into close contact with each other by the watertight ring 31e, so that the endoscope 2 and the battery device 3 are combined together. With this configuration, watertightness at the connecting portion is ensured.

  3 and 4, the battery device 3 includes an inner surface 33e that forms a battery housing space for housing a lamp housing portion 32 for housing a lamp 34 serving as battery means, and a lamp housing portion 32 for housing a lamp made of a horizontally long rectangular frame. The battery accommodating part 33 which consists of a vertically long rectangular-shaped frame which has this, and the cover body 35 connected with the upper end part of the battery accommodating part 33 by the hinge type so that opening and closing was possible, for example.

  The lamp housing portion 32 includes a housing portion main body 32a, a watertight ring 32b having a watertight structure that holds the lamp 50 and is fitted to the housing portion main body 32a, and a lamp contact spring portion 32c attached to the watertight ring 32b. . The accommodating portion main body 32a is formed of, for example, an insulating resin material having a large hole portion having a large diameter hole at one end and a fine hole portion having a small diameter hole and communicating with the large hole portion. The hole portion communicates with the outside. The watertight ring 32b is formed so as to be fitted in the large hole portion of the housing portion main body 32a. The lamp contact spring portion 32c is formed of a contact spring that can be fitted to the small diameter portion of the housing portion main body 32a with a screw or the like and can be connected to the proximal end electrode 50a of the lamp 50 inserted and held in the pore portion. Has been. The lamp contact spring portion 32c is connected to a bent portion 57a of a conductive contact plate 57 described later. Further, in the narrow portion of the housing portion main body 32a, a lamp housing tube 51 for holding the lamp 50, a lens holding tube 53 for holding the condenser lens 52 provided in front of the lamp 50, and a slidable member. A click mechanism having a click plate 54 is provided.

  The lamp housing cylinder 51 is a material having good conductivity and is formed in a substantially cylindrical shape. The base end portion of the lamp housing cylinder 51 has a flange shape and is rotatably engaged with the housing portion main body 32a with a ring 60 having elasticity and increasing sliding resistance interposed therebetween. The lamp 50 held in the lamp housing cylinder 51 includes, in addition to the base end electrode 50 a, an electrode 50 b formed from the outer periphery of a metal cylinder, and the electrode 50 b is connected to the lamp housing cylinder 51. In contact.

  Inside the battery housing part 33, a coil spring 33a and a cylindrical connection terminal 33b that are electrically connected in contact with the electrode of the battery 34, and a bottom part of the battery housing part 33 are arranged, and the coil spring 33a and the connection terminal are connected. And a power supply circuit 33c connected to 33b. The coil spring 33a and the connection terminal 33b supply the power of the battery 34 connected in series to the power supply circuit 33c. The power supply circuit 33c is provided with a transformer circuit (not shown) that converts the voltage of the battery 34 into the rated voltage of the lamp 50, for example, 4.8V.

  The housing portion main body 32a of the lamp housing portion 32 and the battery housing portion 33 are integrally joined. Between the lamp housing portion 32 and the battery housing portion 33, conductive contact plates 55 to 57 having elasticity, an insulating block 58 for connecting and disconnecting the conductive contact plates 55 and 56 by a switch operation described later, A sliding block 59 for sliding the conductive contact plate 55 is disposed. The insulating block 58 is fixed at a predetermined position of the lamp housing cylinder 51 and deforms the conductive contact plate 55 in the longitudinal direction of the battery housing portion 33 along with the rotating battery device 3. In addition, the sliding block 59 is configured so that the conductive contact plate 55 can slide when the conductive contact plates 55 and 56 are connected by the switching operation of the insulating block 58. Fixed in position. The fixed positions of the insulating block 58 and the sliding block 59 correspond to the switch positions where the lamp 50 is turned on and off.

  The lid body 35 is formed of a non-conductive member, and includes a conductive plate 35a connected to the battery 34 in a closed state, and a fixed claw portion 35b provided at an edge portion. In this embodiment, the battery 34 is inserted and housed in the inner surface 33e of the battery housing portion 33 as shown by the arrow B, and when the lid 35 is closed, the battery 34 comes into contact with the conductive plate 35a and is in a series state. Connected with.

  Further, the battery device 3 includes a lock mechanism portion 36 at an upper end portion facing the upper end portion to which the lid body 35 is connected. The lock mechanism portion 36 rotates with respect to the lock claw portion 36a engaged with the fixed claw portion 35b and the battery housing portion 33, and supports the lock claw portion 36a so as to be rotatable in response to the rotation. And an opening lever 36b. Therefore, the lock claw portion 36a can be in a fixed state or a released state with respect to the fixed claw portion 35b in conjunction with the operation of the release lever 36b. That is, the lid body 35 is integrally fixed to the battery housing portion 33 by a so-called buckle type locking mechanism that engages with the fixing claw portion 35b.

  Next, the switch operation of the battery device 3 will be described based on FIG. 5, in this embodiment, when the battery device 3 is screwed and fixed to the operation unit 22, the battery housing portion 33 of the battery device 3 is placed in a relative positional relationship parallel to the longitudinal direction of the endoscope 2 ( In FIG. 5, the battery device is set in an off state so that the lamp 50 is not turned on.

  Next, the battery accommodating portion 33 is arranged at the position indicated by the solid line in FIG. 5 by rotating the battery accommodating portion 33 by 90 degrees in the advancing direction of the timepiece with the watertight ring 32b as the center with respect to the position in the off state. As a result, the lamp 50 is turned on. Therefore, by attaching the battery device 3 to the light guide base 22a and moving the battery housing portion 33 to the solid line position, the lamp 50 provided in the battery device 3 enters a light emitting state.

  6 to 11 are cross-sectional views for explaining the switch position. FIGS. 6, 8 and 10 are CC cross-sectional views of FIG. 4, and FIGS. 7, 9 and 11 are FIG. It is DD sectional drawing of. The conductive contact plates 55 to 57 are screwed to the housing main body 32a so as to be biased toward the lamp housing cylinder 51, and wide bent portions 55a and 57a are provided at one end portions of the conductive contact plates 55 and 57. Is formed. A wide flat plate portion 56 a is formed at one end of the conductive contact plate 56. The conductive contact plates 55 and 56 are in electrical contact between the bent portion 55a and the flat plate portion 56a.

  Since one end portion of the conductive contact plate 55 is formed with its tip bent toward the battery housing portion 33 side, it is configured to be able to get on and off the insulating block 58 within the elastic range by the switch operation. As shown in FIGS. 6 and 7, when the bent portion 55a of the conductive contact plate 55 rides on the insulating block 58, the conductive contact plates 55 and 56 are disconnected and the switch is turned off.

  Next, as shown in FIGS. 8 and 9, when the bent portion 55 a of the conductive contact plate 55 passes through the insulating block 58, the bent portion 55 a of the conductive contact plate 55 and the flat plate portion 56 a of the conductive contact plate 56 are separated. The switch comes into the first ON state by pressing and contacting, and the sliding block 59 comes into contact with the side surface of the bent portion 55a, so that the bent portion 55a extends in the longitudinal direction of the housing portion main body 32a (the arrow direction in FIG. 9). Slide. As a result, the connection surfaces of the conductive contact plates rub against each other, and the conductive contact plate, which is a metal member, is less likely to be rusted, so that the conductive resistance of the electrically conductive contact plate can be prevented from decreasing.

  Furthermore, as shown in FIGS. 10 and 11, when the sliding block 59 passes the side surface of the bent portion 55a, the bent portion 55a of the conductive contact plate 55 returns to the original position, and the switch is in the second position. The on state is established, and the connection state between the bent portion 55a and the flat plate portion 56a is maintained. The position of the bent portion 55a when the switch is in the first on state is defined as a “normally conductive position”, and the position of the bent portion 55a when the switch is in the second on state is defined as “sliding”. When defined as “moving position”, the conductive contact plate 55 can reciprocate while maintaining an electrical connection between the normal conductive position and the sliding position.

  Regardless of this switch operation, the conductive contact plate 56 is always in press contact with the lamp housing cylinder 51 made of a conductive material. When the switch is in an OFF state, a part of the flat plate portion 56 a is submerged under the insulating block 58 and accommodated in a gap provided between the lamp housing cylinder 51. Therefore, the conductive contact plate 56 is electrically connected to the electrode 50 b of the lamp 50 through the lamp housing cylinder 51.

  The conductive contact plate 57 is disposed so that the bent portion 57a protrudes into the inside of the pore portion of the housing portion main body 32a. The bent portion 57a includes the watertight ring 32b and the lamp contact spring portion 32c as shown in FIG. Is attached to the hole portion of the housing portion main body 32a so as to be able to press and contact the ring-shaped portion of the lamp contact spring portion 32c. Therefore, the conductive contact plate 57 is electrically connected to the base end electrode 50a of the lamp 50 via the lamp contact spring portion 32c.

  The battery 34 is made of, for example, a nickel metal hydride battery, has an electromotive force of 1.2 V per battery, and obtains a power supply voltage of 2.4 V by connecting the two batteries in series. The anode side of the battery 34 is connected to a transformer circuit, and the negative electrode side is connected to the other end of the conductive contact plate 55. The other end portions of the conductive contact plates 56 and 57 are connected to the transformer circuit, and a power supply circuit to the transformer circuit is configured with the conductive contact plates 55 and 56 in contact with each other.

  With this configuration, in this embodiment, the conductive contact plate 55 is switched in accordance with a change in the relative position between the operation unit 22 of the endoscope and the battery device 3, so that the transformer circuit is It is possible to supply the lamp 50 with electric power boosted to, for example, 4.8V.

  In this embodiment, the conductive contact plate 55 is moved by the sliding block 59 when the conductive contact plates 55 and 56 come into contact with the change in the relative position between the operation unit 22 of the endoscope and the battery device 3. Since the contact surfaces of the conductive contact plates 55 and 56 rub against each other, rust is less likely to occur on the conductive contact plate, which is a metal member, and the conduction resistance of the electrically conductive contact plate is reduced. Contact failure can be prevented.

  In this embodiment, one sliding block 59 is provided and the conductive contact plate 55 is slid. However, the present invention is not limited to this, and two or more sliding blocks are provided. The conductive contact plate 55 is arranged to be slid a plurality of times during a single switch operation accompanying a change in the relative position between the operation unit 22 of the endoscope and the battery device 3. It is also possible. In this case, since the connection surfaces of the conductive contact plates 55 and 56 rub against each other a plurality of times, rust is hardly generated on the conductive contact plate which is a metal member, and the conduction resistance of the electrically conductive contact plate is reduced. And poor contact between the conductive contact plates can be easily prevented.

(Embodiment 2)
12 is a cross-sectional view showing another example of the configuration of the AA cross section mainly including the lamp housing portion of the battery device shown in FIG. In FIG. 12, the difference from the first embodiment is that a connection terminal 33d formed of a leaf spring is provided instead of the coil spring 33a contacting the negative electrode of the battery 34 shown in FIG. The connection terminal 33d is formed of a tongue-shaped leaf spring, one end of which is fixed to the bottom of the battery housing portion 33, and the other end of the battery 34 housed in the battery device 3 by the urging force of the leaf spring. It is configured to be in contact with the negative electrode and easily slide on the negative electrode surface.

  That is, when a force greater than the urging force of the connection terminal 33d is applied to the connection terminal 33d due to the weight of the battery 34 stored in the battery device 3 and the closure of the lid 35 by the lock mechanism 36 (see FIG. 3), The connection terminal 33d can move from the position of the one-dot chain line, which is the non-use position shown in FIG. 12, to the solid line position, which is the use position in the direction of the power circuit 33c, while sliding on the negative electrode surface of the battery 34 that is in contact. It becomes.

  With such a configuration, in this embodiment, when a force greater than the urging force of the connection terminal 33d is applied to the connection terminal 33d in contact with the battery 34, the connection terminal 33d cannot be performed by a coil spring. The electrode surface of the battery 34 is deformed in the direction of the power supply circuit 33c while sliding on the electrode surface 34, so that the battery electrode surface and the connection terminal can rub against each other. Rust is unlikely to occur in the connection terminal which is a member, and a decrease in the conduction resistance of the electrical connection terminal and a poor contact with the electrode surface of the battery can be easily prevented.

  Further, in the present invention, for example, a sliding portion of the battery device 3 such as the click plate 54 shown in FIG. 12, a contact portion such as the lamp contact spring portion 32c, the electrodes 50a and 50b of the lamp 50, and the conductive contact plates 55 to 57, etc. It is also possible to form the metal member of SUS316L, SUS316, stainless steel with a high nickel content, such as rust-free metal members. In this case as well, the intrusion of pressurized steam, such as autoclave sterilization, makes it less likely that rust is generated on the sliding parts and contact parts, which are metal members, and the sliding force amount of the sliding parts increases. It is possible to easily prevent a decrease in the conduction resistance of a typical contact portion and a contact failure with the electrode surface of the battery.

  Further, in the present invention, the metal member such as the sliding portion and the contact portion is subjected to a surface finish that hardly generates rust, for example, a surface finish that finishes the surface of the metal member to a surface roughness classification of 6.3 (6.3 μm) or more. It is also possible to perform. Also in this case, rust is more unlikely to occur in the sliding portion or the contact portion which is a metal member, and the same effect as described above can be achieved.

  Furthermore, in the present invention, surface treatments such as nepros treatment, magnetic polishing treatment, electropolishing treatment, Ni-Au plating treatment, Ni plating treatment, chromate are performed on the metal members such as sliding portions and contact portions, which are less likely to generate rust. It is also possible to perform surface treatment such as treatment. Also in this case, rust is more unlikely to occur in the sliding part or the contact part, which is a metal member, and the same effect as described above can be achieved.

(Embodiment 3)
FIG. 13 is a cross-sectional view showing an AA cross section of the battery device 3 shown in FIG. 1. In the conventional battery device, for example, an O-ring 37 is disposed on the contact surface between the battery housing portion 33 and the lid body 35 (see FIG. 13) to reduce the intrusion of water vapor. There is a problem that it is difficult to prevent the intrusion of pressurized water vapor that sometimes occurs.

  Therefore, in this embodiment, an O-ring is provided in the vicinity of the contact portion that contacts the electrode of the battery 34 so as to prevent the intrusion of pressurized water vapor. Specifically, as shown in FIG. 13, an O-ring 38 is provided at a predetermined position of the lid 35 surrounding the coil spring 33 a provided on the lid 35, and a connection terminal 33 b provided in the battery housing portion 33 is provided. An O-ring 39 is provided at a predetermined position in the surrounding battery housing portion 33. Furthermore, when the lid 35 is closed by the lock mechanism portion 36, the O-ring 38 contacts the negative electrode of the battery 34 loaded in the battery housing portion 33, and the O-ring 39 contacts the exterior portion of the battery 34. By doing so, the contact portion and the electrode are configured to be watertightly isolated.

  With this configuration, in this embodiment, an O-ring 37 is provided on the contact surface between the battery housing portion 33 and the lid body 35 and surrounds a contact portion with the battery 34 loaded in the battery housing portion 33. O-rings 38 and 39 are provided at the positions, and the battery 34 and the O-rings 38 and 39 that are loaded can double the water-tightness of the contact portions and the electrodes. Rust is less likely to occur, and a decrease in the conduction resistance of the electrical connection terminals and poor contact with the electrode surface of the battery can be easily prevented.

(Embodiment 4)
FIG. 14 is a perspective view illustrating another example of the configuration of the battery device 3 illustrated in FIG. 1. In this embodiment, as a measure for preventing the occurrence of rust, a moisture absorbing sheet storage portion 41 capable of storing the moisture absorbing sheet 43 is provided in the battery storage portion 33, and the moisture absorption state of the stored moisture absorbing sheet 43 can be visually observed. The transparent window portion 42 is provided on the side surface of the battery housing portion 33. The moisture absorbing sheet storage portion 41 is formed in communication with the inner surface 33e that forms the battery storage space and the internal space of the other battery storage portion 33. The moisture absorption sheet 43 is disposed in the moisture absorption sheet storage portion 41. In addition, it is possible to absorb moisture that enters the internal space of the battery housing portion 33 from the outside.

  The hygroscopic sheet 43 is made of, for example, a hygroscopic laminate film or the like, and has an indicator function capable of recognizing the degree of hygroscopicity by changing the color of the film. The hygroscopic sheet 43 is configured to be able to be processed into an arbitrary shape according to the size of the hygroscopic sheet storage portion 41 and can be easily replaced. Moreover, in this embodiment, since the moisture absorption degree of the moisture absorbing sheet 43 can be visually observed from the window portion 42, the exchange magnetism of the moisture absorbing sheet can be easily recognized.

  With this configuration, in this embodiment, water vapor that enters the inside of the battery device 3 from the outside can be absorbed by the moisture absorbent sheet 43 accommodated in the moisture absorbent sheet accommodating portion 41. Intrusion of pressurized water vapor makes it more difficult for rust to occur on the sliding parts and contact parts, which are metal members, increasing the amount of sliding force on the sliding parts and reducing the electrical resistance of the electrical contact parts. A drop and poor contact with the electrode surface of the battery can be easily prevented.

  In this embodiment, the moisture absorbing sheet 43 is provided on the surface facing the one surface of the battery housing portion 33 to which the lid 35 is connected. However, the present invention is not limited thereto, and the battery housing portion 33 is configured, for example. It is also possible to provide a moisture absorbing sheet storage portion 41 in which the moisture absorbing sheet 43 is stored on all or any of the four side surfaces so as to absorb water vapor entering the battery device 3. In this case, the moisture absorption function by the moisture absorbing sheet is further improved, and rust is less likely to occur in the sliding part and contact part, which are metal members, and the sliding force amount of the sliding part is increased, It is possible to easily prevent the conduction resistance of the contact portion from being lowered and poor contact with the battery electrode surface.

  Moreover, although the case where the battery apparatus concerning this invention was used for the endoscope apparatus was demonstrated in embodiment mentioned above, this invention is not limited to this, For example, an electric knife, an ultrasonic surgical instrument, a thermal knife, a drill It can also be used as a power source for surgical instruments or inspection instruments and observation instruments that require sterilization, such as shavers, staplers, oral mirrors, ultrasonic observation apparatuses, and capsule endoscopes. It can also be used as a power source for implantable devices that require sterilization, such as artificial organs and pacemakers. It can also be used as a power source for equipment used in the clean area of operating rooms such as monitors and laser pointers used for observation. Furthermore, it is used not only for medical equipment but also for industrial endoscopes and space stations used for observing high-temperature and low-temperature and high-humidity tanks and piping at fire sites and plants. It can also be used as a power source for equipment used in harsh space environments (for example, work manipulators and autonomously moving robots). These endoscope apparatuses, medical instruments, etc. constitute a part of the battery device according to the present invention.

It is a perspective view which shows an example of a structure of the portable endoscope apparatus using the battery apparatus concerning this invention. It is a figure for demonstrating the external appearance of the connection part of the operation part and battery apparatus which were shown in FIG. It is a figure which shows the whole structure of the battery apparatus shown in FIG. Similarly, it is sectional drawing which shows an example of a structure of AA cross section mainly having the lamp | ramp accommodating part of a battery apparatus. It is a figure for demonstrating switch operation of the battery apparatus by the difference in the relative position of an operation part and a battery apparatus. It is sectional drawing which shows CC cross section of FIG. 4 which shows the switch position of an OFF state. FIG. 6 is a cross-sectional view showing a DD cross section of FIG. 4 showing a switch position in an off state. FIG. 5 is a cross-sectional view showing a CC cross section of FIG. 4 showing a switch position in a first ON state. FIG. 5 is a cross-sectional view showing a DD cross section of FIG. 4 showing a switch position in a first ON state. FIG. 5 is a cross-sectional view showing a CC cross section of FIG. 4 showing a switch position in a second ON state. FIG. 5 is a cross-sectional view showing a DD cross section of FIG. 4 showing a switch position in a second ON state. It is sectional drawing which shows the other example of a structure of AA cross section mainly having the lamp | ramp accommodating part of the battery apparatus shown in FIG. It is sectional drawing which shows the AA cross section of the battery apparatus shown in FIG. It is a perspective view which shows the other example of a structure of the battery apparatus shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Endoscope apparatus 2 Endoscope 3 Battery apparatus 21 Eyepiece part 22 Operation part 22a Light guide base 22b Curve operation lever 22c Suction button 22d Suction base 22e Grasping part 22f Forceps insertion port 22g Forceps plug 22h Vent hole 22i Male screw part 22j Connection cylinder 23 Insertion portion 23a Tip portion 23b Curved portion 23c Flexible tube 23d Lighting window 31 Connection portion 31a Connection ring 31b Female screw portion 31c Screw cover 31d Connection base 31e Watertight ring 32 Lamp storage portion 32a Storage portion main body 32b Watertight ring 32c Lamp Contact spring portion 33 Battery housing portion 33a Coil spring 33b, 33d Connection terminal 33c Power supply circuit 33e Inner surface 34 Battery 35 Lid 35a Conductive plate 35b Fixed claw portion 36 Lock mechanism portion 36a Lock claw portion 36b Release lever 37 to 39 O-ring DESCRIPTION OF SYMBOLS 1 Hygroscopic sheet storage part 42 Window part 43 Hygroscopic sheet 50 Lamp 50a, 50b Electrode 51 Lamp storage cylinder 52 Condensing lens 53 Lens holding cylinder 54 Click plate 55-57 Conductive contact plate 55a, 57a Bending part 56a Flat plate part 58 Insulating block 59 Slide block 60 ring

Claims (6)

An electrode portion provided inside the apparatus for housing the battery means, and electrically connected to the battery means;
A first contact portion connected to the electrode portion;
Function execution means that operates by a power source supplied from the battery means;
A second contact portion connected to the function execution means;
Switching means for connecting or disconnecting the first contact portion and the second contact portion;
Sliding means for sliding at least one of the connected first and second contact portions;
A battery device comprising: The battery device includes a mounting unit that is mounted on a predetermined target device.
The switching means may further include a first contact portion and a second contact portion according to a change in a relative position between the battery device attached by the attachment means and the predetermined target device. Connect or disconnect,
The battery device according to claim 1, wherein the sliding means starts and ends sliding of at least one of the contact portions at the time of the connection.   In a state where the first contact portion and the second contact portion are electrically connected, at least one of the first and second contact portions is between a normal conductive position and a sliding position. The battery device according to claim 1, wherein the battery device is reciprocally movable. An electrode portion provided inside the apparatus for housing the battery means, and electrically connected to the battery means;
A first contact portion connected to the electrode portion;
Function execution means that operates by a power source supplied from the battery means;
A second contact portion connected to the function execution means;
Switching means for connecting or disconnecting the first contact portion and the second contact portion;
Sliding means for sliding at least one of the connected first and second contact portions;
A mounting means mounted on the predetermined target device;
A battery device having
An endoscope operation unit as the predetermined target device;
An endoscope apparatus comprising: The switching means connects the first contact portion and the second contact portion in accordance with a relative position change between the battery device attached by the attachment means and the endoscope operation portion. Or detach and
The endoscope apparatus according to claim 4, wherein the sliding means starts and ends sliding of at least one of the contact portions at the time of the connection. In the battery device, in a state where the first contact portion and the second contact portion are electrically connected, at least one of the first and second contact portions is slid with a normal conductive position. The endoscope apparatus according to claim 4, wherein the endoscope apparatus can reciprocate between the moving positions.

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