Source: https://patents.google.com/patent/DE19525228B4/en
Timestamp: 2020-01-17 15:11:16
Document Index: 592420717

Matched Legal Cases: ['art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 101', 'art 101', 'art 101', 'art 101', 'art 101', 'art 101']

DE19525228B4 - Portable endoscope system - Google Patents
DE19525228B4
DE19525228B4 DE1995125228 DE19525228A DE19525228B4 DE 19525228 B4 DE19525228 B4 DE 19525228B4 DE 1995125228 DE1995125228 DE 1995125228 DE 19525228 A DE19525228 A DE 19525228A DE 19525228 B4 DE19525228 B4 DE 19525228B4
DE1995125228
DE19525228A1 (en
1994-07-11 Priority to JP15774894A priority Critical patent/JP3249014B2/en
1994-07-11 Priority to JP6-157748 priority
1995-04-20 Priority to JP7-94093 priority
1995-04-20 Priority to JP7-94622 priority
1995-04-20 Priority to JP09409395A priority patent/JP3249027B2/en
1995-04-20 Priority to JP7094622A priority patent/JPH08280613A/en
1995-07-11 Application filed by Pentax Corp filed Critical Pentax Corp
1996-01-18 Publication of DE19525228A1 publication Critical patent/DE19525228A1/en
2005-09-22 Publication of DE19525228B4 publication Critical patent/DE19525228B4/en
portable Endoscope system with an endoscope, with a light guide (9, 109) for illuminating an object which is in an operating part (2, 102) end of the entry end arranged, and with an on the Operating part (2, 102) detachable fixed lighting unit (30, 130) for introducing light in the light guide (9, 109), a lamp (32, 132) and a them contains a feeding battery (100), characterized by an AC / DC adapter (60) for connection to a AC mains on the one hand and to the lighting unit (30, 130) on the other hand, wherein the adapter (60) with the lighting unit (30, 130) is connectable in a room in the lighting unit (30, 130) is present when the battery (100) is removed.
The The invention relates to a portable endoscope system according to the preamble of claim 1 or 5.
One portable endoscope system of the previous type has a light source, the is arranged in a control panel of the endoscope. In such a portable endoscope system is a lighting unit on the control panel attached, a miniature light bulb and as a power supply for this contains a dry battery.
Becomes a battery is used as the power supply for the light source, so lets their capacity, and while endoscopy can make the lighting weaker, so that a continuation of the investigation is impossible.
In In such a case it is very cumbersome to use the battery during the Exchanging an exam and also painful for the patient, the delay is exposed. If there is no spare battery, endoscopy must be done to be ended. Therefore arises for the hitherto known technique a serious problem.
A portable endoscope system according to the preamble of claim 1 or 5 is in each case from the documents US 2 235 979 and US 4 580 198 known. In each of these two documents, a system is described which comprises a detachable lighting unit containing a lamp and a battery feeding the lamp. In neither of these two documents, it is provided that the lamp intended for object lighting can be fed both via an internal and via an external power source. In the publication US 2 235 979 Although these two possibilities of power supply are addressed in principle, but there is either one or the other power supply provided. In the publication US 4 580 198 only an internal power supply in the form of a battery is disclosed.
The The object of the invention is a portable endoscope system indicate where the battery is for a lighting unit not to be replaced, so that an interruption of the investigation is unnecessary.
The Invention solves This object is achieved by the features of the characterizing part of the claim 1 or 5, advantageous developments are subject of the dependent claims.
The The invention provides a portable endoscope system in which a light guide for lighting an object is powered by a light source. The The entrance end of the light guide is in a control panel of the endoscope arranged. The lighting unit is releasably attached to the control panel. The portable endoscope system has an AC / DC adapter with a commercial AC power supply is connected and a delivers predetermined DC voltage. The adapter can be connected to the lighting unit be connected.
The The invention also provides a portable endoscope system with a light guide for illuminating an object fed by a lighting unit becomes. The entrance end of the light guide is in a control panel arranged, and the lighting unit is detachably attached to the control panel. The endoscope system has the following lighting units, the can be connected optionally: A unit with a built-in battery that contains a lamp, one AC / DC adapter unit containing a lamp and a Adapter for powering the lamp from a commercial AC power supply contains and a light pipe cable unit for introducing light from an external one Lamp over to the light guide a fiber optic cable.
The Invention will be explained in more detail below with reference to the drawings. In this demonstrate:
1 the side view of a first embodiment of the portable endoscope system with attached to a control unit of the endoscope illumination unit,
2 an enlarged sectional top view of a first embodiment with separate from the control unit of the endoscope lighting unit,
3 an enlarged sectional plan view of the arrangement according to 2 with illumination unit attached to the operating part of the endoscope,
4 an enlarged section of the first embodiment of the invention, wherein the lighting unit is separated from an AC / DC adapter,
5 a schematic representation of lighting units that can be optionally connected to a control unit of a portable endoscope system, as a second embodiment of the invention,
6 the side view of the second Ausfüh example of a portable endoscope system,
7 the rear view of the endoscope system 6 .
8th a rear view of the endoscope system according to 6 and 7 with a connected AC adapter,
9 a sectional partial view of the endoscope system according to 6 with a connection between the operating part of the endoscope and a lighting unit,
10 a partial section of the endoscope after 6 with separate from the control panel light source,
11 a partial section of a battery chamber and a cap, which is a part of the illumination unit of the endoscope after 6 form,
12 the section XII-XII after 11 .
13 a partial section of the cap of the illumination unit of the endoscope system 6 in the off state, and
14 the section XIV-XIV after 13 ,
1 a control panel is shown with adjacent components of a portable endoscope system as a first embodiment of the invention. The portable endoscope system has an insertion part 1 reinforced with a flexible tube and a control panel 2 connected to the proximal end of the insertion part 1 connected is.
About three quarters of the control panel 2 , seen from below, serve as a handle 2a , Between this handle 2a and the insertion part 1 protrudes obliquely upwards a pliers entry 4 ,
The control panel 2 has over the handle 2a a control mechanism 5 , This has a negative pressure control valve 6 , which performs on its front side a suction operation via a forceps channel (not shown), in the insertion part 1 is used. The control mechanism 5 also has a bending control lever on its back 7 , which controls the bending of a remotely controllable flexible member (not shown) at the distal end of the insertion part 1 performs. In addition, there is an eyepiece 8th at the top of the control mechanism 5 arranged.
An optical fiber bundle 9 for illuminating an object is with its entrance end in the control mechanism 5 angeord net and runs through the insertion 1 and the handle 2a of the control panel 2 , The entrance end of the optical fiber bundle 9 is in the distal end of the insertion part 1 arranged.
A lighting unit 30 feeds the fiberoptic bundle 9 with light and is on one side of the control mechanism 5 releasably secured.
The lighting unit 30 usually contains a lamp that shines its light on the optical fiber bundle 9 and a battery as a power supply for the lamp. In this embodiment, however, the battery is out of the lighting unit 30 removed, and a connecting cable 61 is to the lighting unit 30 connected and leads to an AC / DC adapter 60 ,
2 shows in an enlarged section the portable endoscope system with separate illumination unit 30 ,
The control mechanism 5 of the control panel 2 has a plastic housing 11 , A bend control lever 7 carrying cylinder 12 is in an opening of the housing 11 waterproof fastened. Similar is the vacuum control valve 6 in an opening of the housing 11 waterproof fastened. The respective proximal end of the cylinder 12 and the negative pressure control valve 6 are on a frame 13 in the control panel 2 attached.
A cover 15 is in a relatively large opening on one side of the housing 11 used, and an O-ring seal 16 is at the insert surface of the cover 15 attached to the entry of water into the interior of the control panel 2 through the gap between the cover 15 and to prevent the opening extent. Although the O-ring seal 16 squeezed when in the sealing space between the cover 15 and the housing 11 sitting, he is shown in the figure with its normal cross-section before crushing (this also applies to the following figures).
A holding cylinder 17 is on the axis of a hole in the middle of the cover 15 arranged. The proximal end of the holding cylinder 17 is on the frame 13 of the control panel 2 attached. An optical fiber holding cylinder 18 is with the holding cylinder 17 screwed. The distal end of the light guide holding cylinder 18 protrudes from the holding cylinder 17 outward. The entrance end of the optical fiber bundle 9 is with a screw in the middle of the optical fiber holding cylinder 18 established.
A lens holding cylinder 19 is at the protruding end of the optical fiber holding cylinder 18 cap-like fitted and thus firmly screwed. The lens holding cylinder 19 has a convex meniscus lens 20 which is watertightly connected to its distal end. The convex meniscus lens 20 is at a position near the entrance end face of the optical fiber bundle 9 set so that it faces this.
A holding frame 22 for an o-ring surrounds the connection between the holding cylinder 17 and the optical fiber holding cylinder 18 , The frame 22 is with its outer surface in the hole in the middle of the cover 15 used and with its inner surface of the outer surface of the lens-holding cylinder 19 customized. O-rings 24 and 25 are on the outer and inner surfaces of the holding frame 22 attached to an inlet of water in the interior of the control panel 2 through the gap between the holding frame 22 and the cover 15 or through the gap between the holding frame 22 and the lens holding cylinder 19 to prevent.
Thus forms the control panel 2 a waterproof structure that prevents water from entering the control panel 2 prevented by one of its parts. The insertion part 1 is similarly waterproof. Even if the portable endoscope system is immersed in a disinfectant or other liquid, even without attached lighting unit 30 , entry of the disinfectant or other liquid into the endoscope is not to be feared.
A connecting cylinder 23 surrounds the area of the lens holding cylinder 19 to the holding frame 22 , The proximal end of the connecting cylinder 23 is with the inner surface of the hole in the cover 15 screwed. The outer circumference of the intermediate part of the connecting cylinder 23 has an external thread 23a , The outer circumference of the distal end of the connecting cylinder 23 , in front of the external thread 23a is a beveled surface whose diameter gradually decreases towards the distal end. An O-ring seal 26 is on the beveled surface between the external thread 23a and the distal end.
The lighting unit 30 has a generally L-shaped cylindrical shape. It has a plastic housing 31 , A lamp 32 is in the bend of the L-shaped housing 31 arranged. This lamp 32 is on a lamp base 33 attached.
The lamp 32 is on the axis of the short cylindrical part of the L-shaped housing 31 arranged. A mirror 34 is on the lamp base 33 attached and surrounds the lamp 32 , so that their light on the axis of the short cylindrical part of the L-shaped housing 31 is converged or concentrated.
The housing 31 has an opening behind the lamp base 33 , In the opening is a bottom lid 35 detachably screwed. An O-ring seal 36 is between the lid 35 and the housing 31 arranged to prevent the entry of water into the lighting unit 30 through the gap between the bottom lid 35 and the housing 31 through it. In addition, a compression spring 37 between the bottom lid 35 and the lamp base 33 arranged to the lamp base 33 and the mirror 34 determined by the spring force.
A cylinder receiving the connecting cylinder 46 is in an opening at the end of the short cylindrical part of the L-shaped housing 31 by putting on a nut 47 from the inside of the case 31 attached. The receiving cylinder 46 has a beveled opening, which is the tapered surface of the connecting cylinder 23 on the control panel 2 is adapted.
An O-ring seal 48 is between the mating surfaces of the receiving cylinder 46 and the housing 31 arranged to prevent the entry of water into the lighting unit 30 by preventing the gap between these two parts. A plane-parallel transparent plate 49 is with the inner end of the receiving cylinder 46 waterproof connected. The lighting unit 30 thus has a waterproof structure that prevents the entry of water into its interior.
A fastening ring 50 is on the outer circumference of the receiving cylinder 46 fixed so that it does not fall in the axial direction. The fastening ring 50 has an internal thread 50a for the external thread 23a of the connecting cylinder 23 ,
When the lighting unit 30 in the 2 shown state with the control panel 2 it is approached to it, and the bevelled surfaces of the connecting cylinder 23 and the receiving cylinder 46 are brought together. Then the internal thread engages 50a of the fastening ring 50 in the external thread 23a of the connecting cylinder 23 , This will make the lighting unit 30 with the control panel 2 connected as it is in 3 is shown.
Here, the at the oblique surface of the connecting cylinder 23 attached O-ring 26 through the receiving cylinder 46 squeezed so that water does not leak through the connection between the lighting unit 30 and the control panel 2 can occur. Even if the portable endoscope system is immersed in a disinfectant or other liquid and the lighting unit 30 on the control panel 2 is attached, the entry of disinfectant or other liquid in the interior of the endoscope is not to be feared.
When the lighting unit 30 on the control panel 2 is fixed in the manner described above, the light of the lamp 32 at the mirror 34 reflects and then falls through the transparent plate 49 and the lens 20 , The light then converges to the entrance end of the fiber optic bundle 9 and is taken up by this.
Since the connecting cylinder 23 and the receiving cylinder 46 With their beveled surfaces can be guided into each other, the lighting unit 30 on the control panel 2 be rigidly fastened by the fixing ring 50 on the connecting cylinder 23 is tightened.
The lighting unit 30 but can be rotated freely around the optical axis by the fixing ring 50 something is loosened. The lighting unit 30 So it can be brought into the most comfortable position for the user by their angle relative to the control panel 2 what is set in 1 at A is shown. In this case, then the fastening ring 50 in the desired position of the lighting unit 30 tightened.
3 shows the overall arrangement of the lighting unit 30 when connected to the control panel 2 , 4 shows the lighting unit 30 , where connectors on both ends of the connection cable 61 from the lighting unit 30 and the adapter 60 are separated.
The adapter 60 has a plug 62 , which can be plugged into a power outlet outlet with a voltage of 100 or 200 volts. The AC line voltage is converted into a DC voltage, which is used to power the lamp 32 is suitable and is for example 3 volts. This voltage is connected to contacts 64 delivered in an output terminal 63 are provided.
The connection cable 61 contains two conductors 66 in a flexible hose 65 are used. It has plugs on both ends 68 and 69 ,
The plug 68 that with the adapter 60 connected has two pins 71 for connecting the conductors 66 with the contacts 64 , The plug 68 is with the adapter 60 by screwing a union nut 72 with the connection 63 connected and can be separated by loosening the nut from him.
The plug 69 , which with the lighting unit 30 is connected, has an electrically insulating plug body 75 which is in a battery case 74 inside the long cylindrical part of the L-shaped lighting unit 30 is releasably used. The plug body 75 has two contacts 76 that with the ladders 66 are connected. When the plug body 75 in the battery case 74 is used, come the two contacts 76 in contact with electrodes 42 and 43 in the case 31 are arranged. The electrodes 42 and 43 are with the lamp 32 via ladder 44 connected.
An unillustrated switch for switching the lamp on and off 32 is looped into the ladder, which is the lamp 32 Food. The switch is also used watertight, so that no water from the outside into the lighting unit 30 can occur.
The plug body 75 has a cover at its proximal end 78 , This is in an opening at the distal end of the housing 31 screwed. An O-ring seal 79 is between the cover 78 and the housing 31 arranged. Furthermore, the plug body 75 with the hose 65 of the connection cable 61 via a connecting cylinder 81 connected, and an O-ring seal 82 is between the circumference of the connecting cylinder 81 and the inner surface of the cover 78 arranged.
When the lighting unit 30 with the adapter 60 over the connection cable 61 is connected, the lamp lights up 32 and gives her light to the fiber optic bundle 9 from.
Although the AC / DC adapter 60 is not waterproof, is the connection cable 61 sealed off, and the lighting unit 30 is by connecting to the connecting cable 61 sealed.
at the first embodiment According to the invention, the adapter can be connected to the lighting unit be to deliver a predetermined DC voltage. Therefore must in the Lighting unit no battery to be replaced. Endoscopy can therefore be executed without interruption.
If the connection cable with the lighting unit for connection of the adapter is connected, the lighting unit is sealed, so that no water from the outside can enter into it. Therefore, the lighting unit can be safe be washed and disinfected.
6 and 7 show respectively a side and rear view of a second embodiment of the invention with a control panel and adjacent parts of a portable endoscope system. This has an insertion part 101 which is reinforced by a flexible tube. The proximal end of the introducer 101 is with the lower end portion of a keypad 102 connected.
About three quarters of the control panel 102 Starting from below, serve as a handle 102 , A pliers entry 104 is between grip 102 and the insertion part 101 provided obliquely projecting forward. A pressure control valve 103 is used to adjust the pressure in the endoscope, which has an airtight construction.
The control panel 102 has a control mechanism 105 over the handle 102 , Here is a vacuum control valve 106 arranged at the front to perform a suction operation by a forceps channel (not shown), which in the insertion 101 is used. The control mechanism 105 also has a bending control lever 107 at the rear, with which a remotely controllable flexible member (not shown) at the distal end of the insertion part 101 can be bent. In addition, there is an eyepiece 108 at the upper end of the operating mechanism 105 intended.
An optical fiber bundle 109 for illuminating an object is with its entrance end in the control mechanism 105 arranged and passes through the insertion part 101 and the handle 102 of the control panel 102 , The exit end of the optical fiber bundle 109 is in the distal end of the insertion part 101 arranged.
A lighting unit 130 for feeding the optical fiber bundle 109 is detachable on one side of the control mechanism 105 fixed so that it is on a straight line across the axis of the control mechanism 105 protrudes.
As 7 . 8th and 9 show contains the lighting unit 130 a lamp 132 , the light on the optical fiber bundle 109 gives off, and a battery 100 as a power source for the lamp 132 , The battery 100 may be a dry cell battery or a rechargeable nickel-cadmium battery. The battery 100 Can be replaced by one at the outer end of the lighting unit 130 provided cap 150 is solved. As 8th shows, can be an AC / DC adapter 180 with the lighting unit 130 be connected and the battery 100 replace.
The adapter 180 has a plug 182 , which is plugged into a mains socket for an AC voltage of 100 or 200 volts. Thus, the usual AC voltage can be converted into a DC voltage of, for example, 3 volts to the lamp 132 to dine.
9 shows the connection between the control panel 102 and the lighting unit 130 as well as their environment. The control mechanism 105 of the control panel 102 is in a housing 111 housed in electrically insulating plastic.
A cylinder 112 that the bending control lever 107 carries, is in a hole in the housing 111 used watertight. Similar is the vacuum control valve 106 in a bore of the housing 111 used watertight. The proximal ends of the cylinder 112 and the negative pressure control valve 106 are on a frame 113 in the control panel 102 attached. The frame 113 consists of a solid and electrically conductive material such as metal or carbon-reinforced plastic and is also referred to below as a metal frame 113 designated.
A cover 115 made of an electrically insulating plastic is in a relatively large opening in one side of the housing 111 used, and an O-ring seal 116 is at the insert surface of the cover 115 attached to the entry of water into the interior of the control panel 102 to prevent. Also, in the mating area between the cover 115 and the housing 111 a gradation 121 designed to allow a relative twisting of the cover 115 and the housing 111 to prevent.
A holding cylinder 117 is on the central axis one in the middle of the cover 115 provided opening provided. The proximal end of the holding cylinder 117 is on the metal frame 113 in the control panel 102 attached. An optical fiber holding cylinder 118 is with the holding cylinder 117 screwed.
The distal end of the light guide holding cylinder 118 protrudes from the projecting end of the holding cylinder 117 outward.
The entrance end of the optical fiber bundle 109 is centrally with a screw in the light guide holding cylinder 118 attached. A convex meniscus lens 120 is with the protruding end of the optical fiber holding cylinder 118 watertight connected and is the end face of the entrance end of the optical fiber bundle 109 across from.
In an opening of the cover 115 is a receptacle 127 formed for a cylindrical unit, so that the base 127 protrudes outward to the lighting unit 130 to pick up on the keypad 102 is releasably attached. The base 127 For example, it is made of stainless steel and has a metallic mounting ring 128 that with the holding cylinder 117 screwed, pushed inwards and thereby secured.
An insulating cylinder 129 , which consists of electrically insulating plastic, is between the pedestal 127 and the mounting ring 128 arranged so that these two parts do not come into contact with each other. Thus, the pedestal 127 and the fastening ring 128 electrically isolated from each other.
The cover 115 and the insulating cylinder 129 that with the pedestal 127 on the control panel 102 are therefore electrically insulating elements. Even if an external leakage current to the socket 127 flowing from the keypad 102 protrudes outwards, it will not affect the other parts of the control panel 102 directed.
It should be noted that an O-ring seal in the mating area between each pair of mating parts within the opening of the cover 115 is arranged, causing the control panel 102 has a waterproof structure so that no water can enter it. The insertion part 101 is also waterproof.
The lighting unit 130 has an overall straight, cylindrical shape. She is in a lamp chamber 130a at the connection to the control panel 102 and a battery chamber 130b divided, leading to the control panel 102 has a distance. 9 shows the entire lamp chamber 130a ,
The outer wall of the battery chamber 130b is through a cylindrical housing 131b formed of a good corrosion resistant material (chemical resistance), such as stainless steel, a metal with a chemically resistant surface or a plastic.
Furthermore, a cylindrical inner housing 131 ( 11 ) in the outer housing 131b arranged in contact with its inner circumference. The inner case 131 consists of an electrically good conductive material, such as copper or a copper alloy such as phosphor bronze.
A lamp base 131 is on the inner housing 131 over some parts on the border between the lamp chamber 130a and the battery chamber 130b attached. The lamp 132 is detachable in the lamp socket 131 used. The mounting structure of the lamp cap will be described later.
A cylindrical lamp chamber housing 135a forms the outer wall of the lamp chamber 130a , The lamp chamber housing 135a consists of a mechanically stable material, such as stainless steel, and is connected to the outer housing 131b connected.
A relative rotation between the lamp chamber housing 135a and the outer casing 131b is by one or more pins 137 prevented from the lamp chamber housing 135a protrudes and for in the outer housing 131b a groove 136 is provided.
A fastening ring 138 is on the lamp chamber housing 135a through the pen 137 attached and between the outer casing 131b and a retaining ring 135b held, the outer circumference of the lamp chamber housing 135a is adapted and with the outer housing 131b is screwed. Thus, the lamp chamber housing 135a and the outer casing 131b fixed in the axial direction. An O-ring 139 seals the junction between the lamp chamber housing 135a and the outer casing 131b from.
A mirror 134 is with the distal end of the lamp chamber housing 135a connected and surrounds the lamp 132 to direct their light to the face at the entrance end of the fiber optic bundle 109 to converge.
A transparent glass cover 149 is at the front of the mirror 134 with a mother 140 attached. The peripheral surface of the glass cover 149 is coated with a sealing compound to prevent water from entering the chamber housing 135a to prevent.
An O-ring 141 (annular seal member) is on the outer periphery of the distal end of the lamp chamber housing 135a in close contact with the inner circumference of the socket 127 provided to seal the connection (ie the area between the inner circumference of the base 127 and the outer periphery of the lamp chamber housing 135a ).
An external thread 135s ( 10 ) is on the outer circumference of the distal end of the lamp chamber housing 135a at one point in front of the O-ring 141 educated. This external thread 135s engages in an internal thread 127s on the inner circumference of the base 127 one. By this screwing is the lighting unit 130 with the control panel 102 connected.
The light of the lamp 132 So it's up to the mirror 134 reflects and then falls through the glass cover 149 and the kon vexe meniscus lens 120 , The light converges on the face at the entrance end of the optical fiber bundle 109 and enter into this.
When the lighting unit 130 with the control panel 102 is connected, so is the area between the lamp chamber housing 135a and the pedestal 127 with the O-ring 141 sealed.
As 10 shows, the lighting unit 130 from the control panel 102 separated by the external thread 135s of the lamp chamber housing 135a from the internal thread 127s of the pedestal 127 is solved.
Since in this embodiment the Au male thread 137S at the distal end of the lamp chamber housing 135a at one point in front of the O-ring 141 is provided, this does not touch the internal thread 127s of the pedestal 127 when the lighting unit 130 with the control panel 102 connected or disconnected from it. The O-ring 141 so it will not be damaged if the lighting unit 130 with the control panel 102 connected or detached from it.
According to 9 are two electrodes that are from the lamp 132 stand backwards in the pedestal 133 inserted and electrically with connecting pins 142a and 142b behind the pedestal 133 connected. The proximal ends of the connecting pins 142a and 142b are with electrode plates 143a and 143b connected to each other via an insulating plate 114 face.
An electrode plate 143a is always in contact with the positive electrode of the battery 100 , the other electrode 143b is electrically connected to the inner housing 131 via a holding cylinder 146b connected, which consists of a highly electrically conductive material.
These parts are from an electrically insulating cylinder 145 surrounded and shared with the pedestal 130 through a holding nut 147 attached to the inner housing 131 is screwed.
11 shows the battery chamber 130b , A cap 150 is with the end of the cylindrical inner housing 131 screwed that the battery 100 receives. The cap 150 has a switch for switching the lamp on and off 132 ,
An outer cylinder 151b Made of a good corrosion resistant material forms the outer wall of the cap 150 , An inner cylinder 151a from an electrically good conductive material is in the outer cylinder 151b arranged in contact with its inner circumference. The inner cylinder 151a is with the inner case 131 screwed. The outer cylinder 151b and the inner cylinder 151a are bolted together. For sealing, an O-ring is used 152 ,
Further, an O-ring seal 153 (Cap seal ring) in the fitting area between the outer periphery of the battery chamber of the outer housing 131b and the inner circumference of the outer cylinder 151b the cap 150 provided, thereby preventing the entry of water into the cap 150 is prevented through this passport area.
A cap body 154 made of a good electrically conductive metal is integral with the outer end of the inner cylinder 151a the cap 150 on the inside of the outer cylinder 151 connected by screwing and other connection. A first compression spring 155 lies with its one end to the cap body 154 to the battery 100 to the lamp chamber 130a via a retaining ring 156 to push in the inner cylinder 151a is used axially movable. This will cause the contact between the positive electrode of the battery 100 and the electrode plate 143a guaranteed.
The first compression spring 155 is coaxial with the battery 100 arranged, and the retaining ring 156 lies on the peripheral edge of the battery 100 on, so that the negative electrode of the battery 100 is not touched. With 157 is an annular disc called with good sliding properties.
A movable contact element 158 touches the negative electrode of the battery 100 , It has a cylindrical shape, is closed at one end and consists of a rigid metal of good electrical conductivity. The movable contact element 158 is in the cap body 154 inserted so that it can project axially from him and be pressed into it.
The movable contact element 158 has a contact 158a which is formed in the middle part of its bottom. It comes with a second compression spring 166 so charged that the contact 158a against the middle part of the negative electrode of the battery 100 is pressed.
A guide pin 159 protrudes from the outer periphery of the movable contact element 158 , He sits in an axial guide groove 160 in the cap body 154 such that rotation of the movable contact element 158 around its axis is not possible. A leaf spring 161 is with its proximal end to the cap body 154 attached to the top of the guide pin 159 from the outside to put pressure.
The guide pin 159 and the leaf spring 161 consist of a good electrically conductive metal. Thus, the negative electrode is the battery 100 electrically with the electrode plate 143b connected via metallic parts of good electrical conductivity, which in the lighting unit 130 sealed and isolated from the outside and are in contact with each other. These are the movable contact element 158 , the leader pin 159 , the leaf spring 161 , the inner cylinder 151a and the inner case 131 ,
The lamp 132 is through the battery 100 fed practically without voltage drop via the supply lines. When the lighting unit 130 is immersed in a medical liquid, this comes with any electrically conductive part in touch. Therefore, no corrosion occurs, and the electrically conductive parts retain their conductivity.
A rotation axis 163 is in the cylindrical, movable contact element 158 inserted so that they are around the axis of the cap 150 is rotatable. A shift control ring 164 is integral with the head of the axis of rotation 163 connected and bolted to the projecting end of the cap 150 protrudes.
The shift control ring 164 has a cup shape and surrounds the end portion of the cap 150 , A drainage hole 164a is in the outer edge of the shift control ring 164 provided to drain water in the space between the shift control ring 164 and the outer cylinder 151b during washing or disinfection may occur.
In general, a single drainage hole is sufficient 164a , but also several such openings may be provided, therefore, preferably two drainage holes are arranged offset by 180 ° from each other. Drainage performance is further enhanced by three or more drainage holes.
Because the drainage hole 164a in the outer edge of the shift control ring 164 is provided, water can be used when washing or disinfecting in the space between the shift control ring 164 and the outer cylinder 151b occurred, are conveniently removed, so that no water in the room behind the Schaltsteuerring 164 accumulates. With 165 is a decorative plate called.
The upper part of the movable contact element 158 is rotatable in the inner periphery of the end of the outer cylinder 151b used. An O-ring seal 167 (Switch sealing ring) is in the fitting area between the upper part of the movable contact element 158 and the inner circumference of the outer cylinder 151b arranged. This will cause the entry of water into the interior of the lighting unit 130 prevented. The lighting unit 130 So it has a waterproof structure that prevents water from entering any place.
There is no great difference in the material diameter of the O-ring seal 167 and the cap seal 153 However, the ring diameter of the cap seal ring 153 much larger than that of the switch seal ring 167 , The sliding resistance during rotational movement in the fitting region is thus at the cap seal ring 153 higher than on the switch sealing ring 167 ,
In this embodiment, the ring diameter of the cap seal ring 153 about three times larger than the ring diameter of the switch seal ring 167 , However, a significant difference in sliding resistance to rotational movement can be achieved by providing at least twice the difference in ring diameter.
12 shows the section XII-XII 11 , guide pins 169 Stand from the outer circumference of the axis of rotation 163 at right angles. leaf springs 170 exert a drag on the guide pins 169 when these are their extreme positions by turning around the axis of rotation 163 to reach.
The side walls of the movable contact element 158 and the cap body 154 through which the guide pins 169 penetrate, have grooves 171 and perimeter pits 172 , If the guide pins 169 around the axis 163 are rotated, the movable contact element 158 in the axial direction by the action of the grooves 171 against the clamping force of the second compression spring 166 moves, causing the contact 158a from the negative electrode of the battery 100 is disconnected. This will make the lamp 132 switched off.
13 shows the cap part of the lighting unit 130 with the switch open, caused by the rotation of the shift control ring 164 in the manner described above. 14 shows the section XIV-XIV 13 ,
In this embodiment, the guide pins rotate 169 by turning the shift control ring 164 90 ° above the axis of rotation 163 , which together with the shift control ring 164 is rotated as a unit, whereby the movable contact element 158 in the axial direction by the action of the grooves 171 is moved. The contact 158 This is caused by the negative electrode of the battery 100 separated.
The axis of rotation of the shift control ring 164 agrees with the axis of rotation of the inner cylinder 151a the cap 150 match that with the inner case 131 the battery chamber 130b is screwed. The o-ring seal 153 However, it is larger than the switch sealing ring 167 in terms of the ring diameter and thus the sliding resistance, as described above.
When the shift control ring 164 is rotated, the outer cylinder turns 151b the cap 150 not relative to the outer casing 131b the battery chamber 130b , and the screw connection between inner cylinder 151a the cap 150 and the inner housing 131 the battery chamber 130b can not relax.
Further, the battery 100 from the first compression spring 155 opposite to the direction of movement of the movable contact element 158 when disconnecting from the battery 100 acted upon by the switching operation. In addition, the first compression spring 155 , the battery 100 , the contact 158a and the second compression spring 166 arranged coaxially with each other. That's why the battery is going 100 in the battery came mer 130b held stable without wobbling and regardless of the state of the switch.
If the cap 150 from the lighting unit 130 to replace the battery 100 is to be solved, the user only needs the inner cylinder 151a from the inner housing 131 by turning the outer cylinder 151 to solve.
As 13 shows, is the leaf spring 161 for pressing the head of the guide pin 159 bent so that it is separated from this, as soon as the switch is open. There is a clicking action in this position, resulting in a stable stationary state.
at the second embodiment So is a connection element for connecting the lighting unit with the control panel fixed to the electrically conductive frame of the control panel via a connected electrically insulating element, so that it is opposite to the electrically conductive frame is isolated. Even if a leakage current from the AC power supply flowing on the side of the lighting unit, no power can go to the Operating part of the endoscope guided become. The electrical safety for the patient is therefore guaranteed at all times.
5 shows lighting units with the control panel 102 of the portable endoscope system in the second embodiment can be connected. All lighting units are detachable on the mounting base 127 to fix. Therefore, the respective suitable lighting unit can be used as required.
The first lighting unit 130 in the upper part of the figure contains a battery for powering the built-in lamp 132 , This kind of lighting unit 130 has been referred to above with reference to 9 and other figures described.
The second lighting unit 230 has an AC / DC adapter 280 which is plugged into a standard AC mains voltage of 100 volts (or 200 volts) to convert the AC voltage to a DC voltage that is used to power the lamp 132 is suitable and, for example, has a voltage value of 3 volts.
The use of this lighting unit 230 allows endoscopy in a general ward or similar, without fear of interruption in the event of a depleted battery.
The third lighting unit 330 has a plug 380 , which is connected to a DC power supply, not shown, to a lamp 132 to dine.
Will this lighting unit 330 used, so an endoscopy can also be performed outside, for example at an accident site. If an adapter plugged into the socket, for example, a motor vehicle cigarette lighter and plug 380 used, a large capacity battery can be used as a power source. It is also easy to charge the power supply. In this case, the DC voltage can be reduced to, for example, 3 volts through a DC / DC converter or the like. be lowered.
The fourth lighting unit 430 , which is shown in the lower part of the figure, has an optical fiber cable, the light of a strong lamp (not shown) in an external lamp device 400 the optical fiber bundle 109 in the endoscope via the fiber-optic cable 432 supplies.
The use of the lighting unit 430 allows the supply of light of sufficiently high brightness from an external lamp, which is much brighter than the built-in lamp 132 is by using a normal endoscopic light device.
at this embodiment can optionally not just a lighting unit with built-in battery, but also a lighting unit with AC / DC adapter and a unit with fiber optic cable are used, the detachable to be attached to the control panel.
Also if the battery is consumed to power the lamp, the Endoscopy be continued without interruption. Further, the endoscopy also in a general ward or similar be performed.
If the system is designed so that a External DC power source used, endoscopy can also outside, For example, in an accident area, be performed by a car battery etc. used becomes.
Portable endoscope system with an endoscope, with a light guide ( 9 . 109 ) for illuminating an object that is inserted in a control panel ( 2 . 102 ) end of the input end, and with one on the control panel ( 2 . 102 ) detachably mounted lighting unit ( 30 . 130 ) for introducing light into the light guide ( 9 . 109 ), which is a lamp ( 32 . 132 ) and a battery ( 100 ), characterized by an AC / DC adapter ( 60 ) for connection to an AC mains on the one hand and to the lighting unit ( 30 . 130 ) On the other hand, where the adapter ( 60 ) with the lighting unit ( 30 . 130 ) in a room is connectable in the lighting unit ( 30 . 130 ) is present when the battery ( 100 ) is removed.
Endoscope system according to claim 1, characterized in that the adapter ( 60 ) with the lighting unit ( 30 . 130 ) via a connection cable ( 61 ), and that the illumination unit ( 30 . 130 ) is sealed against ingress of water when the connecting cable ( 61 ) is connected to her.
Endoscope system according to claim 2, characterized in that the connecting cable ( 61 ) of the adapter ( 60 ) is separable.
Endoscope system according to one of the preceding claims, characterized in that the operating part ( 102 ) an electrically conductive frame ( 113 ), and that the illumination unit ( 130 ) with the control panel ( 102 ) via a connecting element ( 127 ) connected to the electrically conductive frame ( 113 ) via an electrically insulating element ( 129 ) is firmly connected.
Portable endoscope system with an endoscope, with a light guide ( 109 ) for illuminating an object that is inserted in a control panel ( 102 ) arranged inlet end, and with one on the control panel ( 102 ) connectable lighting unit for introducing light into the light guide ( 109 ), characterized by several optionally on the control panel ( 102 ) connectable lighting units, namely a lighting unit ( 130 ) with a built-in lamp ( 132 ) and one the lamp ( 132 ), a lighting unit ( 230 ) with a built-in lamp ( 132 ) and an AC / DC adapter ( 280 ), which is used to power the lamp ( 132 ) is connectable to an AC mains, and a lighting unit ( 430 ) with a fiber optic cable ( 432 ) for transmitting light from an external lamp ( 400 ) on the light guide ( 109 ).
Endoscope system according to claim 5, characterized by another optionally on the control panel ( 102 ) connectable lighting unit ( 330 ) with a built-in lamp ( 132 ) and a plug ( 380 ), which is used to power the lamp ( 132 ) is connectable to a DC power supply.
Endoscope system according to claim 6, characterized in that the further illumination unit ( 330 ) has a DC-DC converter for converting a DC voltage.
Endoscope system according to claim 5, 6 or 7, characterized in that the control unit ( 102 ) an electrically conductive frame ( 113 ), and that the illumination unit ( 130 ) with the control panel ( 102 ) via a connecting element ( 127 ) connected to the electrically conductive frame ( 113 ) via an electrically insulating element ( 129 ) is attached.
DE1995125228 1994-07-11 1995-07-11 Portable endoscope system Expired - Fee Related DE19525228B4 (en)
JP15774894A JP3249014B2 (en) 1994-07-11 1994-07-11 Simple type endoscope apparatus
JP6-157748 1994-07-11
JP09409395A JP3249027B2 (en) 1995-04-20 1995-04-20 Simple type endoscope apparatus
JP7094622A JPH08280613A (en) 1995-04-20 1995-04-20 Handy type endoscope apparatus
JP7-94093 1995-04-20
JP7-94622 1995-04-20
DE19525228A1 DE19525228A1 (en) 1996-01-18
DE19525228B4 true DE19525228B4 (en) 2005-09-22
ID=27307480
DE1995125228 Expired - Fee Related DE19525228B4 (en) 1994-07-11 1995-07-11 Portable endoscope system
US (1) US5588950A (en)
DE (1) DE19525228B4 (en)
JP3821206B2 (en) * 2000-09-29 2006-09-13 フジノン株式会社 Waterproof cap for connector of endoscope
JP2005520309A (en) * 2002-04-10 2005-07-07 カール シュトルツ エンドスコピー−アメリカ インコーポレーテッド Apparatus and method for powering a portable battery operated light source
DE102013214278A1 (en) * 2013-07-22 2015-01-22 Digital Endoscopy Gmbh Sealing component for an endoscope plug
US10384010B2 (en) 2013-12-17 2019-08-20 Novo Nordisk A/S Motorized drug delivery device with charging safety feature
1995-07-07 US US08/499,128 patent/US5588950A/en not_active Expired - Lifetime
1995-07-11 DE DE1995125228 patent/DE19525228B4/en not_active Expired - Fee Related
DE19525228A1 (en) 1996-01-18
US5588950A (en) 1996-12-31
JP3514979B2 (en) 2004-04-05 Endoscope device
2013-05-23 R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee